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Plantas que actúan sobre el eje de Energía  
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PANAX GINSENG
(Ginseng koreano blanco)
 

Conocida desde hace 7.000 años, especialmente en los países asiáticos, esta planta es famosa por sus propiedades revitalizantes físicas, mentales y sexuales, siendo considerado como adaptógeno primario que ayuda al sistema a adaptarse al estrés físico, químico o biológico. Existen varias plantas que pertenecen a este género botánico o comparten propiedades terapéuticas similares, por lo que reciben el nombre de Ginseng: el Ginseng koreano (Panax ginseng), el Ginseng americano (Panax quinquefolius) , el G inseng siberiano (Acanthopanax senticosus) y el Ginseng brasilero (Pfaffia paniculata), aunque otras plantas han sido consideradas, equívocamente, como Ginseng.

Se cultiva únicamente en Korea, China, Japón y Rusia y solo se utiliza su raíz, que tiene cierta semejanza con el cuerpo humano. El Ginseng americano se cultiva únicamente en los EE.UU. y tiene un sabor dulzón ligeramente diferente.


Presione la Botella para conocer la planta

 


Principios activos:

Los principios activos responsables de sus efectos medicinales son las saponinas triterpénicas, de las cuales se han identificado más de 25 diferentes tipos. Se les denomina ginsenósidos R (Japón) o panaxósidos A-F (Rusia). También contiene polisacáridos hidrosolubles (panaxanos A-U), aceites esenciales (panaceno, limoneno, terpineol, citral) y poliacetilenos (ginsenoínas A-K, panaxinol y panaxitriol). Además, fitoesteroles como el beta-sitosterol.

Los principales principios activos -los ginsenósidos-, solo se encuentran en las distintas especies de ginseng. El Panax ginseng koreano es el que contiene mayores concentraciones de cinco de estos ginsenósidos, mientras que el Panax quinquefolius contiene principalmente dos de esos 5 ginsenósidos.

Existen dos tipos de Panax ginseng, el blanco y el rojo. Aunque se trata de la misma planta, las raíces se procesan de forma diferente, lo que produce un color y propiedades diferentes. Las raíces del ginseng blanco se lavan y secan al sol, en cambio las del ginseng rojo se lavan, hierven y luego se secan al sol. El proceso de cocción cambia su color a rojo y se forman más compuestos de ginsenósidos, por lo que es considerado más potente. La variedad de Ginseng koreano rojo eleva la tensión arterial, lo que no ocurre con el Ginseng koreano blanco.

 



Acción Farmacológica:


1) Efecto energizante: Los principios activos del ginseng se unen a receptores betaadrenérgicos de la membrana celular, lo que desencadena las rutas de transducción del segundo mensajero (AMPcíclico). Subsecuentemente la señal se transduce a la mitocondria para que aumente la actividad de la Malato-deshidrogenasa, Succinato deshidrogenasa y Citrato-sintetasa (enzimas de la glicólisis aerobia o ciclo de los ácidos tricarboxílicos). Esto incrementa la generación de ATP incrementando así los niveles energéticos del paciente.

El aumento de la glicólisis aerobia conduce al incremento en el consumo de glucosa, lo que resulta en disminución de los niveles de glicemia y de utilidad clínica en el manejo de la diabetes mellitus.

2) Efecto antioxidante: por captación de radicales libres y estimulación de la glutation peroxidasa hepática. Los ginsenósidos Rb1 y Rg3 presentan un efecto neuroprotector, mediado por una acción antioxidante, frente una sobreproducción de ácido nítrico. Esto reduce la apoptosis de células sanas, por ejemplo: se ha demostrado que protege a las neuronas dopaminérgicas en la enfermedad de Parkinson.

3) Actividad Pro-eréctil: Aumento de la liberación de Óxido Nítrico endotelial por incremento de la actividad de la óxido nítrico sintetasa endotelial. El ON activa la enzima guanilato ciclasa, lo que resulta en mayores niveles de Guanosin Monofosfato cíclico (cGMP) que produce la relajación del músculo liso en los cuerpos cavernosos del pene, permitiendo la entrada del flujo sanguíneo. Esto resulta de especial utilidad en el tratamiento de la Disfunción eréctil.

4) Actividad Cardiovascular: La raíz de ginseng posee acción hipotensora o hipertensiva, dependiendo de la proporción de los distintos tipos de ginsenósidos que contenga, debido a que algunos muestran acción hipotensora y otros hipertensiva. Estas saponinas actúan como antagonistas del calcio en los tejidos vasculares. El ginseng puede mejorar la disfunción del endotelio vascular en pacientes con hipertensión, posiblemente mediado por un incremento en la síntesis de óxido nítrico. La isquemia/reoxigenación (I/R, in vivo) o la hipoxia/reoxigenación (H/R, in vitro) es observada en varias enfermedades, como en el infarto de miocardio. La proteintirosinacinasa (PTK) posee un papel importante en la lesiones por I/R o H/R. Los ginsenósidos Rb1, Rd, Ra1 y Ro inhiben los efectos de la activación de la PTK inducida por H/R, in vitro.

El extracto acuoso de la raíz de Panax ginseng produce vasodilatación en las arterias cerebrales, demostrada en ensayos in vivo con monos, efecto también atribuido al incremento en la síntesis y liberación de óxido nítrico. Además, posee acción antitrombótica, in vitro e in vivo, debido a la inhibición de la agregación plaquetaria y de la cascada de coagulación .

Además, aumenta los períodos refractario y de repolarización ventricular; aumenta el umbral de repolarización ventricular, efectos similares al Verapamil y Amiodarona, antiarrítmicos utilizados en las arritmias de tipo ventricular.

5) Efecto hematopoyético: aumenta significativamente el número de células esplénicas y de médula ósea.

6) Acción anti-inflamatoria : los fitoesteroles inhiben la prostaglandín sintetasa, disminuyendo la conversión del ácido araquidónico a prostaglandina E, involucrada en el proceso inflamatorio.

7) Reduce los niveles séricos de alcohol: mejorando los sistemas microsomales hepáticos oxidantes del alcohol.

8) Mejora la inmunidad humoral inespecífica: induciendo la producción de Interferón e Interleukinas 1,6,8 y 12 y aumentando la actividad citotóxica de los anticuerpos. La actividad inmunomoduladora está mediada por la producción de óxido nítrico.

La quinqueginsina es una proteína que inhibe la transcriptasa inversa del HIV-1 y las alfa y beta glucosidasas, involucradas en la infección de este virus.

9) Mejora la inmunidad celular inespecífica: mejorando la función de los linfocitos Th1 e incrementando el número de células formadoras de colonias de granulocitos-macrófagos, linfocitos y neutrófilos.

10) Acción hipoglicemiante: El ginseng incrementa la secreción de insulina por estimulación de las células beta del páncreas y regula la formación de glucógeno hepático. Ensayos in vitro en islotes de Langerhans de rata permitieron comprobar que el ginseng incrementa la liberación de insulina. En ensayos in vivo en rata se demostró un aumento en el número de receptores de insulina en médula espinal y una reducción en los receptores de glucocorticoides en cerebro de rata. Además, a umenta el consumo de glucosa mediante el ciclo de glicólisis aerobia.

Por otra parte, los ginsenósidos inhiben la producción de Hemoglobina glicosilada, reflejo del proceso de glicosilación proteica causante de la neuropatía y otras complicaciones de la diabetes. La inhibición de la producción de hemoglobina glicosilada indica que los ginsenósidos disminuyen el daño que ocurre por glicosilación, lo que explica la mejoría observada en los casos de neuropatía diabetica.

11) Acción citotóxica: efecto antitumoral, probablemente debido a los ginsenósidos Rg3, Rg5 y Rh2.

12) Acción neuroestimulante : Inhibe la recaptación de GABA, noradrenalina, dopamina, glutamato y serotonina a nivel cerebral, lo que resulta en la estimulación de las funciones cognoscitivas cerebrales, mejorando la eficiencia mental y la memoria.

La raíz de ginseng posee acción estimulante sobre el sistema nervioso central, disminuyendo el efecto depresor provocado por algunos psicofármacos u otras sustancias, e incrementando el transporte de fenilalanina y del fósforo inorgánico libre en la corteza cerebral. Estudios in vitro, muestran que los ginsenósidos Rb1 y Rg1 poseen acciones neurotrópicas y neuroprotectivas que pueden contribuir al aumento de la función cognitiva. La mejora de la función cognitiva que provocan los ginsenósido se demuestran en estudios in vivo, y podría relacionarse con la modulación de los sistemas colinérgico y serotoninérgico. Además, el ginsenósido Rb1 presenta un efecto antiamnésico por minimizar el efecto inhibitorio de los péptidos beta-amiloides (péptidos neurodegenerativos por un mecanismo de supresión de la transmisión colinérgica). El pseudoginsenósido F11 antagoniza, in vivo, la disfunción en la memoria inducida por la escopolamina.

La raíz de ginseng también posee acción depresora sobre el sistema nervioso central, como consecuencia de la modulacion en la neurotransmisión por parte de los ginsenósidos, a través de una disminución en la disponibilidad de varios neurotransmisores.

Algunos ginsenósidos bloquean la transmisión dopaminérgica estimulada por nicotina u otros psicoestimulantes. Estas sustancias actuarían en la región presináptica sobre receptores acetilcolina nicotínicos o sobre los receptores dependientes de canales de Na+ en la terminaciones nerviosas dopaminérgicas, pero no sobre los canales iónicos voltaje-dependientes. Se ha comprobado también una acción ansiolítica in vivo, además de una mayor tolerancia al estrés, en ratón.

Los ginsenósidos producen un efecto analgésico, posiblemente mediado por receptores opiáceos. La administración intraperitoneal de una mezcla de ginsenósidos suprime, de forma dosis dependiente, el dolor producido por la inyección de capsaicina en la región subplantar de ratón. La acción analgésica también se observa cuando son administrados vía intratecal e intracerebroventriular, sin embargo, no se observa ras administración subcutánea en la región de administración de la capsaicina. Por lo tanto, los ginsenósidos actúan a nivel del sistema nervioso central y no a nivel periférico, y sobre el sistema sensorial, sin afectar al sistema motor.

Además, in vivo, se observa que la administración intraperitoneal de ginsenósidos inhibe la hiperactividad producida por morfina y el efecto de tolerancia observado en los receptores postsinápticos dopaminérgicos.

13) Aumenta niveles de Testosterona: lo que produce un aumento del número y viabilidad de los espermatozoides junto a la acción anabolizante y estimulante del deseo sexual que esta hormona produce.

14) Disminuye secreción de prolactina : Los ginsenósidos producen una reducción de los niveles plasmáticos de prolactina debido a un incremento de la actividad dopaminérgica, o a una activación de los receptores de dopamina a nivel de la hipófisis anterior. Esto conduce a un aumento del deseo sexual.

15) Efecto hipolipemiante : Los ginsenósidos muestran propiedades antioxidantes al reducir la oxidación de las LDL. La raíz de ginseng estimula a la lipoproteín-lipasa, enzima que reduce los niveles de quilomicrones y VLDL en sangre y por tanto de colesterol y triglicéridos. Además, sus fitoesteroles disminuyen los niveles de LDL colesterol, por disminución de la absorción del colesterol dietético.

Medicina Sistémica y Panax Ginseng



Dosis:

Tomar una cápsula con 500 mg dos o tres veces por día, con las comidas. Se recomienda un período de 2- 3 semanas, seguido por un descanso de 1- 2 semanas.

Efectos adversos :

Aunque poco frecuentes comparado con su extensa utilización, el abuso puede producir el "Síndrome de abuso al Ginseng" caracterizado por hipertensión arterial, nerviosismo, insomnio, sangramiento nasal (epistaxis), cefalea, vómitos, urticaria y diarrea matutina.

Precauciones :

Se debe utilizar con precaución en pacientes con enfermedades cardiovasculares y en aquellos que utilizan hipoglicemiantes orales.

Evitar el consumo excesivo de café.

 

Interacción medicamentosa :

El ginseng puede potenciar los efectos de los inhibidores de la mono-amino-oxidasa (MAO) pudiendo provocar la aparición de crisis hipertensivas, cefaleas, temores y manías. También puede potenciar la acción de anticoagulantes del tipo warfarina.

 

Contraindicaciones:

A rritmias cardíacas, hipertensión arterial incontrolada, ansiedad, nerviosismo, embarazo y durante la lactancia.

No utilizar en personas que reciben antidepresivos del tipo IMAO.

Referencias

1: Pharmacol Res. 2003 Nov;48(5):511-3.

Effects of Panax ginseng extract on lipid metabolism in humans.

Kim SH, Park KS. Department of Health & Kinesiology, Purdue University, 1362 Lambert, West Lafayette, IN, 47907-1362,USA.

The purpose of this study was to examine the effects of Panax ginseng extract (PGE) on lipid metabolism in humans by measuring cholesterol, malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT). Serum total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL) and plasma MDA levels were decreased by administration of PGE for 8 weeks (6g per day), however, high density lipoprotein (HDL) was increased . Those results suggest that hypolipidemic effect of PGE is associated with a decrease in TC, TG, LDL, MDA levels and an increase in HDL. These findings support scientific claims that ginseng has the hypolipidemic potential. Administration of PGE increased SOD and CAT activities while decreased MDA level indicating that antioxidant potential of PGE might induce hypolipidemic effect as one of action mechanism.

Publication Types:

•  Clinical Trial



2: Pharmacol Biochem Behav. 2003 Jun;75(3):701-9.

Electroencephalograph effects of single doses of Ginkgo biloba and Panax ginseng in healthy young volunteers.

Kennedy DO, Scholey AB , Drewery L. Human Cognitive Neuroscience Unit, Division of Psychology, University of Northumbria , Newcastle upon Tyne , NE1 8ST , UK .

Both Ginkgo biloba and Panax ginseng exert a number of physiological effects and have been shown to modulate aspects of cognitive performance. Whilst a number of studies have examined ginkgo's effects on electroencephalograph (EEG) recordings, to date, none have investigated the EEG effects of ginseng. In this double-blind, placebo-controlled, balanced crossover experiment, the effects of single doses of G. biloba (360 mg GK501), P. ginseng (200 mg G115), and an identical placebo, on auditory-evoked potentials, contingent negative variation (CNV), and resting power within the delta, theta, alpha, and beta wavebands, were assessed in 15 healthy volunteers. Each participant was assessed on three separate occasions 4 h after consuming that day's treatment. The order of presentation of the treatments was dictated by a Latin square with 7 days between testing sessions. The results showed that ginseng led to a significant shortening of the latency of the P300 component of the evoked potential. Both ginseng and ginkgo also led to significant reductions in frontal 'eyes closed' theta and beta activity, with additional reduction for ginseng in the alpha waveband. These findings demonstrate for the first time that P. ginseng can directly modulate cerebroelectrical activity, and that these effects are more pronounced than those following G. biloba.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial



cover

3: J Urol. 2002 Nov;168(5):2070-3.

A double-blind crossover study evaluating the efficacy of korean ginseng in patients with erectile dysfunction: a preliminary report.

Hong B, Ji YH, Hong JH. Department of Urology, University of Ulsan College of Medicine , Asan Medical Center , Seoul , Korea .

PURPOSE: We investigated the efficacy of Korean red ginseng for erectile dysfunction using the International Index of Erectile Function, RigiScan (UroHealth Systems, Laguna Niguel , California ), hormonal levels and penile duplex ultrasonography with audiovisual sexual stimulation. MATERIALS AND METHODS: A total of 45 patients with clinically diagnosed erectile dysfunction were enrolled in a double-blind, placebo controlled, crossover study (8 weeks on treatment, 2 weeks of washout and 8 weeks on treatment) in which the effects of Korean ginseng and a vehicle placebo were compared using multiple variables. The ginseng dose was 900 mg. 3 times daily. RESULTS: Mean International Index of Erectile Function scores were significantly higher in patients treated with Korean ginseng than in those who received placebo (baseline 28.0 +/- 16.7 and 38.1 +/- 16.6 versus 30.9 +/- 15.7, p <0.01). Scores on questions 3 (penetration) and 4 (maintenance) were significantly higher in the ginseng than in the placebo group (p <0.01). In response to the global efficacy question 60% of the patients answered that Korean ginseng improved erection (p <0.01). Among other variables penile tip rigidity on RigiScan showed significant improvement for ginseng versus placebo. CONCLUSIONS: Our data show that Korean ginseng can be as effective alternative for treating male erectile dysfunction.

Publication Types:

•  Clinical Trial

•  Evaluation Studies

•  Randomized Controlled Trial



4: Monaldi Arch Chest Dis. 2002 Oct-Dec;57(5-6):242-6.
Ginseng improves pulmonary functions and exercise capacity in patients with Chronic Obstructive Pulmonary Disease.

Gross D, Shenkman Z, Bleiberg B. Respiratory Rehabilitation Unit, Tel Aviv Sourasky Medical Center, 6 Weitzmann Street, Tel Aviv 93715, Israel.

Ginseng is a root that has been used to treat patients with various illnesses for the last 2000 years. The purpose of this study was to evaluate the effects of Ginseng extract (G115) on Pulmonary Function Tests (PFTs), Maximum Voluntary Ventilation (MVV), Maximum Inspiratory Pressure (MIP) and Maximal Oxygen Consumption (VO2max) in patients with moderately-severe Chronic Obstructive Pulmonary Disease (COPD). Ninety-two adults were randomly divided into the experimental (n = 49, G115 100 mg bid for three months) and placebo-control (n = 43) groups. PFTs, MVV and MIP were studied before treatment and every two weeks for the 3-month-study period. Exercise test and VO2max measurements were performed before the beginning and after six weeks and three months. P lower than 0.05 was considered significant. Baseline demographics and pulmonary parameters were similar between the groups. In the experimental, but not in the control group, all parameters significantly increased above baseline and compared with the placebo group. Maximum increase, compared with baseline was FVC-32.5%, FEV1.0-27.0%, PEF-27.5%, FEF50-45.4%, FEF75-56.9%, MVV-40.4%, MIP-47.0% and VO2max-37.5%. No side effects were observed. G115 100 mg bid for three months, but not placebo, improved PFTs, MVV, MIP and VO2 max in patients with moderately-severe COPD with no side effects.

Publication Types:

•  Clinical Trial

Randomized Controlled Trial



Cover

5: Ann Pharmacother. 2002 May;36(5):758-63.

Electrocardiographic and hemodynamic effects of Panax ginseng.

Caron MF, Hotsko AL, Robertson S. School of Pharmacy, University of Connecticut , Storrs , CT , USA .

OBJECTIVE: To determine whether Panax ginseng ingestion can acutely or chronically alter electrocardiographic parameters: PR, QRS, QT, QTc, and RR intervals, and QT and QTc interval dispersion. Effects of P. ginseng on blood pressure and heart rate also were evaluated. METHODS: This is a prospective, randomized, double-blind, placebo-controlled study of healthy adults at the University of Connecticut . Thirty subjects were randomly allocated to receive 28 days of therapy with either P. ginseng extract 200 mg or placebo. Baseline 12-lead electrocardiograms (ECGs) were obtained. Subsequent ECGs were performed following study drug ingestion at 50 minutes, 2 hours, and 5 hours on days 1 and 28. Blood pressure readings were taken with each ECG. RESULTS: P. ginseng ingestion increased the QTc interval by 0.015 seconds on day 1 at 2 hours compared with the placebo group (p = 0.03). It also reduced diastolic blood pressure from 75 +/- 5 mm Hg at baseline to 70 +/- 6 mm Hg at the same time point (p = 0.02). The observed effects are not believed to be clinically significant. No other statistically significant changes were found in electrocardiographic or hemodynamic variables on days 1 or 28. CONCLUSIONS: P. ginseng, at doses of 200 mg of the extract daily, increases the QTc interval and decreases diastolic blood pressure 2 hours after ingestion in healthy adults on the first day of therapy.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



Cover

6. Ann Pharmacother. 2002 Mar;36(3):375-9.

Effects of Panax ginseng on quality of life.

Ellis JM, Reddy P. School of Pharmacy , University of Connecticut , Storrs , USA .

OBJECTIVE: To assess the time-dependent effects of Panax ginseng on health-related quality of life (HRQOL) by use of a general health status questionnaire. METHODS: Subjects were randomized in a double-blind manner to P. ginseng 200 mg/d (n = 15) or placebo (n = 15) for 8 weeks. The Short Form-36 Health Survey version 2 (SF-36v2), a validated general health status questionnaire, was used to assess HRQOL at baseline and at 4 and 8 weeks. HRQOL between the groups was compared by use of repeated-measures analysis of covariance. A p value <0.05 was considered statistically significant. RESULTS: There were no significant differences in baseline demographics and SF-36v2 scores between the groups. After 4 weeks of therapy, higher scores in social functioning (P. ginseng 54.9+/-4.6 vs. placebo 49.2+/-6.5; p = 0.014), mental health (P. ginseng 52.2+/-7.7 vs. placebo 47.2+/-7.3; p = 0.075), and the mental component summary (P. ginseng 51.3+/-7.4 vs. placebo 44.3+/-8.3; p = 0.019) scales were observed in patients randomized to P. ginseng; these differences did not persist to the 8-week time point. The incidence of adverse effects was 33% in the P. ginseng group compared with 17% in the placebo group (p = 0.40). Subjects given P. ginseng (58%) were more likely to state that they received active therapy than subjects given placebo (17%; p < 0.05). CONCLUSIONS: Panax ginseng improves aspects of mental health and social functioning after 4 weeks of therapy .

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



7: Int Immunopharmacol. 2001 Jul;1(7):1295-1305.

Long-term intake of Korean red ginseng in HIV-1-infected patients: development of resistance mutation to zidovudine is delayed.

Cho YK , Sung H, Lee HJ. Department of Microbiology, University of Ulsan College of Medicine, 388-1 Pungnap-dong, Songpa-ku, Seoul 138-040, South Korea .

We have observed that CD4+ T cell counts in human immunodeficiency virus (HIV)-1-infected patients treated with only Korean red ginseng (KRG) are maintained or even increased for a prolonged period. In the present study, we investigated whether the development of resistance mutations in reverse transcriptase (RT) to zidovudine (ZDV) is delayed by combined therapy with KRG and ZDV. Nested polymerase chain reaction (PCR) and direct sequencing methods were used to define RT codons 41, 67, 70, 210, 215 and 219 of the HIV-1 pol gene in DNA from peripheral blood mononuclear cells (PBMC) samples from 18 patients. Nine of these eighteen patients were in the KRG group and had been treated with KRG for 60 +/- 15 months (range: 38-82) and ZDV, and nine were in the control group and had been treated with ZDV only. The patients in the KRG group had been treated with ZDV for 75 +/- 24 months, and CD4+ T cell counts were maintained from 239 +/- 85 to 234 +/- 187 microliters-1 (P > 0.05) during the study period, whereas the patients in the control group had been treated with ZDV for 51 +/- 31 months, and their CD4+ T cell counts decreased from 272 +/- 97 to 146 +/- 154 microliters-1 (P < 0.01). In samples within 24 months of ZDV therapy, the overall incidence of 6 resistance mutations to ZDV was 4.2% and 47% in the KRG and control group (P < 0.01), respectively. In samples after 24 months of therapy, the incidence was 21.7% and 56.3% in the KRG and control group (P < 0.01), respectively. These data suggest that the maintenance of CD4+ T cell counts by ZDV and KRG-intake for a prolonged period might be indirectly associated with delayed development of resistance to ZDV by KRG-intake.

Publication Types:

•  Clinical Trial



8: Zhongguo Zhong Xi Yi Jie He Za Zhi. 2001 May;21(5):332-4.

[Clinical observation on nasopharyngeal carcinoma treated with combined therapy of radiotherapy and ginseng polysaccharide injection]

Xie FY, Zeng ZF, Huang HY. Cancer Center of Sun Yat-Sen University of Medical Sciences, China .

OBJECTIVE: To observe the effect of radiotherapy (RT) combined with Ginseng polysaccharide (GSP) injection in treating nasopharyngeal carcinoma (NPC) and its influence on immune function. METHODS: One hundred and thirty-one (131) NPC patients were randomly divided into two groups, 64 cases treated in the RT-GSP group and 67 in the control group treated with conventional therapy, to observe the local cancer remission rate, 1-year total survival rate, no tumor survival rate and no remote metastasis survival rate. Moreover, the changes of T-lymphocyte subsets, natural killer (NK) cell activity and lymphocyte activated killer (LAK) cell activity before and after treatment were observed. RESULTS: Clinical examination conducted 3 months after treatment showed that the complete remission rate in the RT-GSP group was 96.6%, and in the control group 93.3%, the complete remission rate of cervical node metastatic tumor in the two groups was 85.7% and 78.0% respectively. Re-examination carried out 1 year after RT treatment showed that the total survival rate in the two groups was 100% and 96.5%, no tumor survival rate 84.4% and 74.6%, and no remote metastasis survival rate was 93.8% and 88.1% respectively. The activity of NK cell and LAK cell as well as T3, T4 value in peripheral blood increased significantly in the RT-GSP group (all P < 0.05) after treatment, while in the control group, activity of NK cell and LAK cell changed insignificantly after treatment, and T3, T4 value lowered significantly (P < 0.05). No toxic-adverse reaction of GSP was found. CONCLUSION: GSP improves certain immune functions in Nasopharyngeal Carcinoma patients during radiotherapy, it could also eliminate the occurred adverse reaction to radiotherapy and the general condition of patients.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



9: Nutr Neurosci. 2001;4(4):295-310.

Dose dependent changes in cognitive performance and mood following acute administration of Ginseng to healthy young volunteers.

Kennedya DO, Scholeya AB , Wesnes KA. Division of Psychology, University of Northumbria , Newcastle upon Tyne , UK .

Recent evidence suggests that chronic administration of Ginseng can improve cognitive performance in animals and in humans. No previous study has examined the possibility of cognitive effects following single doses of Ginseng in healthy adults. The present study investigated whether acute administration of Ginseng (G115, Pharmaton SA) had any consistent effect on mood and four aspects of cognitive performance ("Quality of Memory", "Speed of Memory", "Quality of Attention" and "Speed of Attention") that can be derived by factor analysis of the Cognitive Drug Research computerised assessment battery. The study followed a placebo-controlled, double-blind, balanced, crossover design. Twenty healthy young adult volunteers received 200, 400, and 600 mg of G115, and a matching placebo, in counterbalanced order, with a 7 day wash-out period between treatments. Following a baseline cognitive assessment, further test sessions took place 1, 2.5, 4 and 6 h after the day's treatment. The most striking result was a significant improvement in "Quality of Memory" and the associated "Secondary Memory" factor at all time points following 400 mg of Ginseng. Both the 200 and 600 mg doses were associated with a significant decrement of the "Speed of Attention" factor at later testing times only. Subjective ratings of alertness were also reduced 6 h following the two lowest doses. To the best of our knowledge this represents the first demonstration of a modulation of mood and cognitive performance by acute administration of Ginseng.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial



10: Am J Chin Med. 2000;28(2):205-16.

Effects of red ginseng upon vascular endothelial function in patients with essential hypertension.

Sung J, Han KH, Zo JH. Department of Internal Medicine, Seoul National University College of Medicine, Korea .

This study is to estimate the effect of Korean red ginseng on vascular endothelial cell dysfunction in patients with hypertension. Seventeen patients with hypertension who were divided into ginseng-treated (7) and non-treated (10) groups and 10 normotensive subjects were included. To assess the function of the vascular endothelial cell, changes of forearm blood flow to infusion of acetylcholine, sodium nitroprusside and bradykinin in incremental doses were measured by venous occlusion plethysmography. In the ginseng-treated hypertensive group, forearm blood flows at the highest dose of acetylcholine and bradykinin were significantly higher than those of the non-treated hypertensive group and were not different from those of the control group. In the case of sodium nitroprusside infusion, no significant differences were observed between the control, non-treated and treated groups. In conclusion, Korean red ginseng can improve the vascular endothelial dysfunction in patients with hypertension possibly through increasing synthesis of nitric oxide.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



11: Int J Sport Nutr. 1999 Dec;9(4):371-7.

Ginseng treatment improves psychomotor performance at rest and during graded exercise in young athletes.

Ziemba AW, Chmura J, Kaciuba-Uscilko H. Dept. of Applied Physiology, Medical Research Center , Polish Academy of Sciences , Warsaw , Poland .

This study was designed to determine the effect of ginseng treatment on multiple choice reaction time (RT) during exercise. Fifteen soccer players (age 19.07 +/- 0.62 yrs) were placed in a double-blind manner into one of two groups: ginseng (n = 7), receiving 350 mg of ginseng daily for 6 weeks, or placebo (n = 8), receiving a placebo daily for 6 weeks. Before and after the treatment all the subjects performed an incremental bicycle ergometer exercise with intensity increasing 50 W every 3 min until volitional exhaustion. RT was measured before exercise, and then in the last 2 min of each exercise load. Maximal oxygen uptake (VO2max) and lactate threshold (LAT) were also determined from the exercise test. Ginseng treatment was found to shorten RT at rest and during exercise, shifting the exercise load associated with the shortest RT toward higher exercise loads. Neither ginseng nor placebo influenced VO2 max and LAT. In conclusion, ginseng extract does improve psychomotor performance during exercise without affecting exercise capacity.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial



12: Drugs Exp Clin Res. 1996;22(6):323-9.

Double-blind study of a multivitamin complex supplemented with ginseng extract.

Caso Marasco A, Vargas Ruiz R, Salas Villagomez A. Universidad Nacional Autonoma (UNAM), Mexico.

To remedy the deterioration in quality of life in large cities, the addition of ginseng root extract to a multivitamin base appears to produce a promising dietary supplement. The aim of the present study was to compare the quality-of-life parameters in subjects receiving multivitamins plus ginseng with those found in subjects receiving multivitamins alone. The study was comparative, randomized and double-blind, and it involved 625 patients of both sexes divided into two groups taking one capsule per day for 12 weeks. Group A received vitamins, minerals, trace elements and ginseng extract G115 while group B received vitamins, minerals and trace elements (multivitamin capsules) only. The resulting quality-of-life was assessed by a standardized 11-item questionnaire, validated by the Medical School of the National Autonomous University of Mexico (UNAM). Of the 625 patients recruited, 124 were excluded from the study due to lack of compliance with the treatment, so that 338 patients in group A and 163 patients in group B completed the study. By the end of the study, the 4th of the monthly assessments showed that both the group-A and the group-B treatments had induced a significant increase in the quality-of-life index, the change being 11.9 points for Pharmaton Capsules in group A which was significantly superior to the 6.4 average increase with the group-B capsules containing multivitamins alone. Group A showed significant improvement in every one of the 11 questionnaire items, whereas group B did not show significant improvement in any of these items . Significant increases in body weight and in diastolic blood pressure were recorded in the group B treated with the multivitamin alone. Adverse effects of the capsules were minimal in both groups. This study has demonstrated that vitamins, minerals, trace elements and ginseng extract were more effective than the multivitamin capsules alone in improving the quality-of-life in a population subjected to the stress of high physical and mental activity.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial

13: Drugs Exp Clin Res. 1996;22(2):65-72.

Efficacy and safety of the standardised Ginseng extract G115 for potentiating vaccination against the influenza syndrome and protection against the common cold.

Scaglione F, Cattaneo G, Alessandria M. Department of Pharmacology, University of Milan , Italy .

The aim of the study was to determine the properties of a standardized extract of ginseng root in inducing a higher immune response in vaccination against influenza. Attention was also paid to the common cold in this multicentre, two-arm, randomized, placebo-controlled, double-blind investigation. A total of 227 volunteers who visited 3 private practices in Milan received daily oral capsule doses of either placebo (113) or 100 mg of standardized ginseng extract Ginsana G 115 (114) for a period of 12 weeks within which they received an anti-influenza polyvalent vaccination at week 4. As a result, while the frequency of influenza or common cold between weeks 4 and 12 was 42 cases in the placebo group, it was only 15 cases in the G115 group, the difference being statistically highly significant (p < 0.001). Whereas antibody titres by week 8 rose to an average of 171 units in the placebo group, they rose to an average of 272 units in the G115 group (p < 0.0001). Natural killer (NK) activity levels at weeks 8 and 12 were nearly twice as high in the G115 group as compared to the placebo group (p < 0.0001). In all the volunteers, laboratory values of 24 safety parameters showed no significant differences between the end and the beginning of the 12-week study in either of the groups. There were only 9 adverse events in the study, the principal one being insomnia.

Publication Types:

•  Clinical Trial

•  Multicenter Study

•  Randomized Controlled Trial



14: Int J Impot Res. 1995 Sep;7(3):181-6.

Clinical efficacy of Korean ginseng for erectile dysfunction.

Choi HK, Seong DH, Rha KH. Severance Institute of Andrology Research , Yonsei University , College of Medicine , Seoul , Korea .

To investigate the efficacy in treating erectile dysfunction and to develop a natural drug without complications, the results of ginseng treatments are compared to placebo and other drug. A total of 90 patients with 30 patients in each group were closely followed. In the group receiving ginseng, changes in early detumescence and erectile parameters such as penile rigidity and girth, libido and patient satisfactions were significantly higher than that of other groups (p < 0.05). The overall therapeutic efficacies on erectile dysfunction were 60% for ginseng group and 30% for placebo and trazodone treated groups, statistically confirming the effect of ginseng (p < 0.05). No cases of aggravation of symptoms were reported. AVS-penogram, which is a recording of penile hemodynamic changes during the natural erection after audiovisual erotic stimulation, is not changed after administration of ginseng. However if administered for a prolonged period of time, the cummulative effect on vascular flow might be seen. The administration of Korean ginseng has shown to have superior effects compared to the placebo or trazodone. Definitely more researches are required to elucidate the mechanism of ginseng. The effects of saponin, extracted from ginseng, on smooth muscle of erectile tissues, can be evaluated using organ chamber or nitric oxide titration, thereby pinpointing the exact action mechanism of saponin. As more informations are available, possible breakthrough in treatment of erectile dysfunction could be arisen from active saponin extracted from red ginseng, bringing hopes to many sufferers of erectile dysfunction.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



15: Zhongguo Zhong Xi Yi Jie He Za Zhi. 1995 Jun;15(6):325-7.

[Effects of red ginseng on the congestive heart failure and its mechanism]

Ding DZ, Shen TK, Cui YZ. Research Section for Cardiovascular Diseases, Yanbian Medical College , Jilin .

Forty-five patients with class IV cardiac function were divided into three groups: group I (digoxin group), group II (Red Ginseng group) and group III (Red Ginseng plus digoxin group). Each group consisted of 15 cases. After treatment, the improvement of the hemodynamical and biochemical indexes of group II and group III were greater than those of group I, and group III was the most significant amongst all. The results suggested that Red Ginseng and digoxin had synergism for treatment of congestive heart failure, and Red Ginseng was an effective and safe adjuvant without any side effects.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial

16: Zhonghua Yi Xue Za Zhi. 1994 Oct;74(10):626-8, 648.

[Protective effects of ginsenoside on myocardiac ischemic and reperfusion injuries]

Zhan Y, Xu XH, Jiang YP. Department of Cardiothoracic Surgery, Second Affiliated Hospital, Hunan Medical University , Changsha .

Thirty mitral valvular surgical patients were randomly divided into three groups for study of protective effects of Ginsenoside on myocardiac ischemic and reperfusion injuries. In GI, 11 patients (controls), no Ginsenoside was used, in GII, 11, Ginsenoside in total was added into the cardioplegic solusion made in our hospital, and in GIII, 8, instead of Ginsenoside in total Ginsenoside Rb was added. During operation comparative studies were made of pre- and postoperative cardiac functions with intraoperative transesophageal echocardiography and ultrastructures of myocardiac cells with electromicroscopy. We conclude that both Ginsenoside in total and Ginsenoside Rb have protective effects on myocardiac ischemic and reperfusion injuries in open heart surgery, and the effect of Ginsenoside in total is even better than that of Ginsenoside Rb.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



17: Int J Clin Pharmacol Ther Toxicol. 1992 Mar;30(3):97-102.

Hemorrheological and circulatory effects of Gincosan.

Kiesewetter H, Jung F, Mrowietz C. Department of Clinical Hemostasiology and Transfusion Medicine, University of the Saarland , Homburg-Saar , Germany .

Gincosan is a combined preparation containing 60 mg ginkgo biloba and 100 mg ginseng, standardized of 24% ginkgo flavone glycosides and 4% ginsenosides. Hemorrheological and circulatory effect as well as blood pressure behavior after the administration of gincosan were studied in an acute trial on 10 voluntary subjects with a mean age of 26 years. Systolic blood pressure decreased significantly both for the large-dose (120 mg ginkgo biloba +200 mg ginseng) and low-dose administration (60 mg ginkgo biloba +100 mg ginseng). Diastolic blood pressure and heart rate decreased only in the high dosage group. The pathologically increased spontaneous platelet aggregation is reduced by both dosages. Erythrocyte velocity in nail fold capillaries increased significantly only in the high dosage group. The parallel group comparison of the high dosage and placebo group showed that they differ only significantly concerning the erythrocyte rigidity, erythrocyte velocity in nail fold capillaries and spontaneous platelet aggregation. A trend towards a decrease in the systolic blood pressure is revealed (p less than 0.1).

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial



18: Clin Ther. 1991 May-Jun;13(3):373-82.

Effects of a standardized ginseng extract combined with dimethylaminoethanol bitartrate, vitamins, minerals, and trace elements on physical performance during exercise.

Pieralisi G, Ripari P, Vecchiet L. Institute of Medical Pathophysiology, University of Chieti , Italy .

The subjects of this double-blind, randomized, crossover study were 50 healthy male sports teachers aged 21 to 47 years. Every day for six weeks each subject received two capsules of a preparation containing ginseng extract, dimethylaminoethanol bitartrate, vitamins, minerals, and trace elements, or two capsules of placebo. The subjects then performed an exercise test on a treadmill at increasing work loads. The total work load and maximal oxygen consumption during exercise were significantly greater after the ginseng preparation than after placebo. At the same work load, oxygen consumption, plasma lactate levels, ventilation, carbon dioxide production, and heart rate during exercise were significantly lower after the ginseng preparation than after placebo. The effects of ginseng were more pronounced in the subjects with maximal oxygen consumption below 60 ml/kg/min during exercise than in the subjects with levels of 60 ml/kg/min or above. The results indicate that the ginseng preparation increased the subjects' work capacity by improving muscular oxygen utilization.

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial



19: Zhong Xi Yi Jie He Za Zhi. 1990 Oct;10(10):586-9, 579.

[Antisenility effect of ginseng-rhizome saponin]

Zhao XZ. Zhejiang College of TCM, Hangzhou .

Ginseng-Rhizome is the Rhizome of Panax ginseng and popularly named "Shenlu". The treatment group treated with the sugar-coated tablets of Ginseng-Rhizome saponin (GRS) orally for two months, one tablet (50 mg per tablet), three times a day. Through the clinical observations of 358 cases of middle and old age persons (age from 50 to 85 years old). The results showed that GRS possessed antisenility effect and marked effect on relieving the symptoms of aging, adjusting organic metabolism and improving physiological function, etc., such as promoting memory, raising the amount of white cells and improving organic immunity function. GRS both improved the function of hypophysisgonad axis and the function of adrenal cortex. It had marked efficacy in the treatment of coronary heart disease with angina pectoris and had better effect on treating concomitant atrial and ventricular prematures . The control group (123 cases, age from 50 to 85 years old) was given sugar-coated tablets of placebo (starch) for two months and then compared themselves with before. There were both no difference in clinical symptoms and experimental tests. After two years experimental researches and clinical observations, it showed that GRS tablet and Shenlu tablet both have no side effect of vomiting and also no toxic effect when they were taken for a long-term.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial

20: Drugs Exp Clin Res. 1990;16(10):537-42.

Immunomodulatory effects of two extracts of Panax ginseng C.A. Meyer.

Scaglione F, Ferrara F, Dugnani S. Dept. of Pharmacology, Chemotherapy and Toxicology, University of Milan , Italy .

The effect of Panax ginseng extracts on cell-mediated immune functions in man has been investigated. Three groups, each consisting of twenty healthy volunteers, were treated under conditions of double blindness with capsules containing lactose (Control Group B), with capsules containing 100 mg of aqueous extract of the drug (Group A), and with capsules containing 100 mg of standardized extract of the drug (Group C). All the patients took one capsule every 12 h for 8 weeks. Blood samples were withdrawn before beginning the treatment, at the fourth week and at the eighth week. The immune parameters examined were the following: chemotaxis of PMNs, phagocytosis index (PHI), phagocytosis fraction (PHF), intracellular killing, total lymphocytes (T3), T helper (T4) subset, suppressor cells (T8) subset, blastogenesis of circulating lymphocytes, natural killer-cell activity (NK). Chemotaxis proved to be enhanced (p less than 0.05) already at the fourth week in Group A as well as in Group C ; the increase became even more marked (p less than 0.001) at the eight week in subjects belonging to Group C. PHI and PHF proved to be enhanced (p less than 0.05) at the eighth week in subjects of Group A; these increases were found to be higher in subjects of Group C (p less than 0.001) already starting at the fourth week. Intracellular killing was shown to be significantly increased (p less than 0.05) already at the fourth week in Groups A and C; the increase becomes highly significant in both groups (p less than 0.001) at the eighth week .(ABSTRACT TRUNCATED AT 250 WORDS)

Publication Types:

•  Clinical Trial

•  Randomized Controlled Trial

21: J Int Med Res. 1987 Sep-Oct;15(5):276-81.

Effects of a preparation containing a standardized ginseng extract combined with trace elements and multivitamins against hepatotoxin-induced chronic liver disease in the elderly.

Zuin M, Battezzati PM, Camisasca M. Department of Internal Medicine, University of Milan , Italy .

A preparation containing a standardized ginseng extract which has been shown to exert anti-hepatotoxic activity in vitro, combined with trace elements and multi-vitamins was compared to placebo in 24 elderly out-patients with toxin-induced (alcohol and drugs) chronic liver disease in order to evaluate its effect on liver function. Each patient was blindly treated either with the preparation containing ginseng extract or placebo for 12 weeks. The preparation containing ginseng extract significantly modified bromsulphthalein retention and blood zinc levels when compared to pre-treatment levels and to placebo. Serum bile acids, and gamma-glutamyl transpeptidase before and after a fatty meal were significantly reduced after treatment with the test preparation and not with placebo. When the two treatment groups were compared, however, no significant difference in these parameters was observed . These results suggest that treatment with the preparation containing ginseng extract could improve the detoxifying activity of the liver in elderly patients with toxin-induced chronic liver disease.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial

•  Randomized Controlled Trial



22: Diabetes Care. 1995 Oct;18(10):1373-5.

Ginseng therapy in non-insulin-dependent diabetic patients.

Sotaniemi EA, Haapakoski E, Rautio A. Department of Internal Medicine, University of Oulu , Finland .

OBJECTIVE: To investigate the effect of ginseng on newly diagnosed non-insulin-dependent diabetes mellitus (NIDDM) patients. RESEARCH DESIGN AND METHODS: In this double-blind placebo-controlled study, 36 NIDDM patients were treated for 8 weeks with ginseng (100 or 200 mg) or placebo. Efficacy was evaluated with psychophysical tests and measurements of glucose balance, serum lipids, aminoterminalpropeptide (PIIINP) concentration, and body weight. RESULTS: Ginseng therapy elevated mood, improved psychophysical performance, and reduced fasting blood glucose (FBG) and body weight. The 200-mg dose of ginseng improved glycated hemoglobin, serum PIIINP, and physical activity. Placebo reduced body weight and altered the serum lipid profile but did not alter FBG. CONCLUSIONS: Ginseng may be a useful therapeutic adjunct in the management of NIDDM.

Publication Types:

•  Clinical Trial

•  Controlled Clinical Trial

•  Multicenter Study


 
         
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