Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 31
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
J Food Biochem ; 46(5): e14041, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35064587

RESUMEN

Growing evidences indicate that high glucose toxicity-associated fibrotic effects play a pivotal role in diabetic nephropathy (DN). Tubular epithelial-myofibroblast transdifferentiation is a major hallmark of renal fibrosis event under diabetic stress. Roots of Glycyrrhiza uralensis (Radix glycyrrhizae) used as a sweetener and traditional Chinese medicine possess high potential for renal protection. In this study, a cell model for high glucose (HG) injury with HK-2 renal proximal tubular epithelial cell line and a type-II-diabetes model with Apoeem1/Narl /Narl mice was established and the beneficial effects of aqueous R. glycyrrhizae extract (RGE) was investigated. RGE-induced regulation on the high glucose-induced excessive production of TGF-ß1 and the Smad/Stat3 mechanisms of renal fibrosis were determined. HK-2 cells were challenged with 45 mM of high glucose for 48 hr. Following high glucose challenge, the cells were treated with 0.5, 1, and 1.5 mg/ml concentrations of RGE. The effect of RGE on DN was determined using high fructose diet-induced type-II-diabetes in Apoeem1/Narl /Narl mice models. Our results showed that RGE suppressed the expression of HG-induced TGFß signaling and associated fibrosis mechanism better than the pharmacological drug acarbose. These data suggest that RGE as a potential herbal supplement in attenuating fibrosis-associated diabetic nephropathy and a potential agent in diabetes treatments.


Asunto(s)
Nefropatías Diabéticas , Medicamentos Herbarios Chinos , Glycyrrhiza uralensis , Animales , Línea Celular , Transdiferenciación Celular , Nefropatías Diabéticas/tratamiento farmacológico , Nefropatías Diabéticas/metabolismo , Medicamentos Herbarios Chinos/farmacología , Fibrosis , Glucosa , Glycyrrhiza uralensis/química , Humanos , Ratones , Miofibroblastos/metabolismo , Extractos Vegetales/farmacología , Transducción de Señal , Factor de Crecimiento Transformador beta1/genética , Factor de Crecimiento Transformador beta1/metabolismo
2.
J Formos Med Assoc ; 120(1 Pt 1): 34-47, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32151487

RESUMEN

BACKGROUND: Traditional Chinese medicine and western medicine have coexisted since 1958 in Taiwan. Integrative traditional Chinese and western medicine (TC&WM) remains to be studied and promoted. In response to the documentary report of WHO Traditional Medicine Strategy 2002-2005, the present study was planned and carried out. METHODS: During 2004-2008, 19 integrative TC&WM dialogue forums were held, in which 219 TC&WM scholars and professionals participated by invitation. The proceedings of the forums in Chinese were published. A study team was organized in 2009 to collect the consensus opinions, utilizing a Delphi method. The opinions collected were discussed in an international TC&WM forum held on November 1, 2014. RESULTS: The opinions of TC&WM experts and professionals on the integrative issues and values were quite divergent. Of the 39 integrative issues, 34 (87.8%) reached consensus, agreeing that WM is excellent in the diagnosis and treatment of diseases/disorders, yet is still evolving, and not perfect without defects. TCM is patient-centered, wellness-oriented, inadequate for acute, critical and life-threatening diseases, but has a complementary and alternative role to WM. Of the 44 diseases/disorders, 36 (81.8%) reached consensus, worthy for integrative clinical use or trials. CONCLUSIONS: Integrative TC&WM, combining the best features of two systems, could be a most useful and advanced healthcare medicine in the future, requiring development of regulations and guidelines for the use of TCM and more rigorous efforts have to be made in clinical trials.


Asunto(s)
Medicamentos Herbarios Chinos , China , Consenso , Humanos , Medicina Tradicional China , Taiwán
3.
Artículo en Inglés | MEDLINE | ID: mdl-30174715

RESUMEN

As technology advances, more modern medical devices are developed to help the physicians in performing objective assessment and diagnosis. In this study, our main objective was to evaluate the clinical application of the low voltage Meridian Energy Detection System in assessing the electrodermal activity (EDA) of the specific acupoints in a specific age group of healthy individuals and to assess the difference in the energy overview between the genders and specific time of assessment. 43 young healthy adults were recruited in a single group, nonrandomized, evaluation study. Written informed consent of each participant was obtained prior to the assessments. Results on energy overview between genders and specific time of assessment as well as factors influencing EDA were discussed. It was concluded that the study using Meridian Energy Detection System in healthy individuals provided an understanding of the difference in energy level of the meridians between the genders. Male healthy individuals had significantly higher values for Physical Status as well as Yin and Yang energy while female healthy individuals had significantly higher values for Mental Health and Autonomic Nervous System. There was no significant difference when comparing the assessments at the specific time of assessment. Hence there was no specific time in using the device. However, due to the limitation of the sample size and the healthy subjects, future research can be designed to investigate whether the time of assessment can affect the results in individuals with specific disease conditions in larger scale. It may merit further studies on the application of such device as preliminary diagnosis of the overall conditions and investigate the treatment efficacy by observing the change in the meridian energy level.

4.
Complement Ther Med ; 23(3): 339-46, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26051568

RESUMEN

OBJECTIVE: This pilot study evaluated whether acupressure affected the postoperative comfort of gastric cancer patients following a subtotal gastrectomy. METHODS: A randomised controlled trial was conducted. Sixty patients were recruited from 141-bed general surgery ward at a 3000-bed medical centre in Northern Taiwan. Participants were randomly assigned to either a control group receiving regular postoperative care or to the experimental group receiving additional acupressure at acupoints of Neiquan (P6) and Zusanli (ST36) for 3 consecutive days. RESULTS: The similarities between two groups were in postoperative pain and the onset of postoperative nausea and vomiting (PONV) at the baseline. Following acupressure, significant differences were found in postoperative pain (P=.03) and time of first flatus (P=.04); but not PONV (P=.49), nor the time of first defecation (P=.34). CONCLUSIONS: Acupressure is a simple, noninvasive, safe, and economical procedure for improving the comfort of patients who undergo surgery for gastric cancer. Acupressure at the P6 and ST36 acupoints can improve postoperative comfort by alleviating pain and decreasing the time until first flatus. However, additional research is necessary to elucidate how acupressure can improve postoperative outcomes.


Asunto(s)
Acupresión , Dolor Postoperatorio/terapia , Náusea y Vómito Posoperatorios/terapia , Neoplasias Gástricas/cirugía , Puntos de Acupuntura , Anciano , Femenino , Gastrectomía/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Dolor Postoperatorio/epidemiología , Náusea y Vómito Posoperatorios/epidemiología , Neoplasias Gástricas/epidemiología
5.
Artículo en Inglés | MEDLINE | ID: mdl-24734109

RESUMEN

Aquapuncture is a modified acupuncture technique and it is generally accepted that it has a greater therapeutic effect than acupuncture because of the combination of the acupoint stimulation and the pharmacological effect of the drugs. However, to date, the mechanisms underlying the effects of aquapuncture remain unclear. We hypothesized that both the change in the local spatial configuration and the substrate stimulation of aquapuncture would activate neuronal signaling. Thus, bee venom, normal saline, and vitamins B1 and B12 were injected into a Zusanli (ST36) acupoint as substrate of aquapuncture, whereas a dry needle was inserted into ST36 as a control. After aquapuncture, activated neurons expressing Fos protein were mainly observed in the dorsal horn of the spinal cord in lumbar segments L3-5, with the distribution nearly identical among all groups. However, the bee venom injection induced significantly more Fos-expressing neurons than the other substrates. Based on these data, we suggest that changes in the spatial configuration of the acupoint activate neuronal signaling and that bee venom may further strengthen this neuronal activity. In conclusion, the mechanisms for the effects of aquapuncture appear to be the spatial configuration changes occurring within the acupoint and the ability of injected substrates to stimulate neuronal activity.

6.
Artículo en Inglés | MEDLINE | ID: mdl-23533481

RESUMEN

Somatovisceral reflex suggested that the somatic stimulation could affect visceral function like acupuncture which treats diseases by stimulating acupoints. The neuronal connection between somatic point and visceral organ was not clear. Uterine pain referred to the groin region has long been recognized clinically. Wesselmann, using neurogenic plasma extravasation method, showed that uterine pain was referred to the groin region through a neuronal mechanism (Wesselmann and Lai 1997). This connection could be considered through the somatovisceral reflex pathway. However, the relay center of this pathway is still not clearly identified. In the present study, bee venom was injected in the groin region to induce central Fos expression to map the sensory innervation of groin region. Pseudorabies virus (PrV), a transneuronal tracer, was injected in the uterus to identify the higher motor control of the uterus. Immunohistochemistry staining revealed the Fos expression and PrV-infected double-labeled neurons in the nucleus of solitary tract (NTS), the dorsal motor nucleus of vagus (DMX), and the paraventricular hypothalamic nucleus (PVN). These results suggest a somatoparasympathetic neuronal connection (groin-spinal dorsal horn-NTS/DMX-uterus) and a somatosympathetic neuronal connection (groin-spinal dorsal horn-NTS-PVN-uterus). These two neuronal connections could be the prerequisites to the neuronal basis of the somatovisceral reflex and also the neuronal mechanism of acupuncture.

7.
Am J Chin Med ; 40(3): 429-42, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22745061

RESUMEN

Smoking represents a serious worldwide public health problem because of its close association with the development of chronic disease and cancer. Acupoint stimulation has been used as treatment mode for smoking cessation but its efficacy remains controversial. This systematic review and meta-analysis aimed to determine the effects of acupoint stimulation on smoking cessation rate and daily cigarette consumption. Electronic literature searches in eight electronic databases up to March 2011 were performed to identify acupoint stimulation for smoking cessation. The outcomes assessed were smoking cessation rate and cigarette consumption. We assessed abstinence from smoking at the earliest and last measured time points, and at the 3- and 6-month follow-ups. Meta-analysis was performed using CMA software. A total of 20 RCTs were included in the meta-analysis. A significant effect of acupoint stimulation was found in smoking cessation rates and cigarette consumption at immediate, 3- and 6-month follow-ups, with effect sizes 1.24 (95%CI = 1.07 ~ 1.43, p = 0.003), -2.49 (95%CI = -4.65 ~ -0.34, p = 0.02), 1.70 (95%CI = 1.17 ~ 2.46, p = 0.01), and 1.79 (95%CI = 1.13 ~ 2.82, p = 0.01), respectively. Multi-modality treatments, especially acupuncture combined with smoking cessation education or other interventions, can help smokers to eschew smoking during treatment, and to avoid relapse after treatment.


Asunto(s)
Puntos de Acupuntura , Terapia por Acupuntura , Cese del Hábito de Fumar , Fumar/terapia , Humanos
8.
Artículo en Inglés | MEDLINE | ID: mdl-22550541

RESUMEN

Objective. This study was to evaluate the efficacy and safety of a Chinese herbal medicine formula (RCM-104) for the management of simple obesity. Method. Obese subjects aged between 18 and 60 years were selected for 12-week, double-blind, randomized, placebo-controlled trial. Subjects were randomly assigned to take 4 capsules of either the RCM-104 formula (n = 59) or placebo (n = 58), 3 times daily for 12 weeks. Measures of BW, BMI and WC, HC, WHR and BF composition were assessed at baseline and once every four weeks during the 12 week treatment period. Results. Of the 117 subjects randomised, 92 were included in the ITT analysis. The weight, BMI and BF in RCM-104 group were reduced by 1.5 kg, 0.6 kg/m(2) and 0.9% and those in the placebo group were increased by 0.5 kg, 0.2 kg/m(2) and 0.1% respectively. There were significant differences in BW and BMI (P < 0.05) between the two groups. Eleven items of the WLQOQ were significantly improved in the RCM-104 group while only 2 items were significantly improved in the placebo group. Adverse events were minor in both groups. Conclusion. RCM-104 treatment appears to be well tolerated and beneficial in reducing BW and BMI in obese subjects.

10.
J Altern Complement Med ; 16(8): 861-6, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20642363

RESUMEN

OBJECTIVE: Renal colic caused by ureteral stone is commonly encountered in the emergency department (ED). This study was designed to measure meridian electrical conductance of patients with ureteral stone in emergency settings. DESIGN: A cohort of patients who had ureteral calculus and acute renal colic and who had visited the ED was enrolled in this study. A device, the design of which is based on the Ryodoraku theory, was used to measure the meridian electrical conductance of patients in the ED. Sixty (60) patients (aged 42.0 +/- 12.6 years) who had a primary ED diagnosis of ureteral calculus or renal colic were enrolled. Thirty (30) healthy volunteers (aged 40.8 +/- 11.7 years) were recruited to serve as controls. RESULTS: Statistical analysis showed that (1) the average electrical conductance of the patient group was statistically lower than that of the control group (p < 0.01), (2) the average index of sympathovagal balance of the patient group was statistically higher than that of the control group (p < 0.01), (3) the average coefficient of variation of the electrical conductance and index of sympathovagal balance in the patient group was statistically different from that in the control group (p < 0.01), and (4) the patients who needed intervention had a higher autonomic nervous imbalance than the patients who had spontaneous stone passage (p < 0.01). CONCLUSIONS: Measures of electrical conductance, especially the index of sympathovagal balance, may be used as valuable supplementary diagnostic methods for selective intervention in patients with acute renal colic.


Asunto(s)
Electroacupuntura/métodos , Servicio de Urgencia en Hospital , Meridianos , Cólico Renal/terapia , Enfermedad Aguda , Estudios de Casos y Controles , Estudios de Cohortes , Impedancia Eléctrica , Fenómenos Electrofisiológicos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Adulto Joven
11.
Nutr Cancer ; 62(5): 593-600, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20574920

RESUMEN

Antrodia camphorata has been recognized to be a traditional Chinese medicine for abdominal pain, diarrhea, and to protect against hepatitis virus infection. Several ingredients derived from A. camphorata possess various pharmacological and biological activities such as antioxidant and anticancer. In this study, its ability to promote immune responses and to exhibited antileukemia activity in WEHI-3 leukemia BALB/c mice were investigated. The results indicated A. camphorata significantly prolonged the survival rate and prevented the body weight loss in leukemia mice. Four mg/kg of A. camphorata treatment significantly decreased the weight of the spleen. Both doses (2 and 4 mg/kg) of A. camphorata did not affect Mac-3 marker in leukocytes. However, the 4 mg/kg of A. camphorata decreased the levels of CD11b and both doses of treatment increased CD3 and CD19. With lipopolysaccharide stimulation, the 4 mg/kg of A. camphorata promoted the significant proliferation of leukocytes; but with concanavalin A stimulation, both doses promoted the significant proliferation of leukocytes. YAC-1 target cells were killed by NK cells from the mice after treatment with A. camphorata at 4 mg/kg in target cells at a ratio of 50:1. The percentage of macrophages with phagocyted at A. camphorata treatment increased, and these effects were in dose-dependent manners.


Asunto(s)
Antrodia , Leucemia Experimental/terapia , Medicina Tradicional China , Animales , Línea Celular Tumoral , Dieta , Células Asesinas Naturales/efectos de los fármacos , Células Asesinas Naturales/inmunología , Leucemia Experimental/inmunología , Leucemia Experimental/mortalidad , Activación de Linfocitos/efectos de los fármacos , Masculino , Ratones , Ratones Endogámicos BALB C , Tasa de Supervivencia
12.
J Nurs Res ; 18(1): 1-10, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20220605

RESUMEN

BACKGROUND: Breast engorgement is a common problem that affects the initiation and duration of breastfeeding. Limited solutions are available to relieve the discomfort associated with breast engorgement. Thus, further investigation of methods to achieve effective relief of symptoms is critical to promote breastfeeding success. PURPOSE: : The purpose of this study was to determine the effects of two breast care methods, that is, scraping (Gua-Sha) therapy (administered to the experimental group) and traditional breast care (i.e., massage and heating; administered to the control group). METHODS: A randomized controlled trial was conducted on 54 postpartum women at a Level III medical teaching hospital. Participant inclusion criteria included postpartum breastfeeding women (a) who had an uncomplicated delivery and (b) who were experiencing breast engorgement problems. The Gua-Sha protocol selected appropriate acupoint positions, which included ST16, ST18, SP17, and CV17. Each position was lightly scraped seven times in two cycles. For the control group, we used hot packs and massage for 20 min in accordance with recommendations given in an obstetrical technique textbook. RESULTS: Results showed no statistical differences between the two groups at baseline. Body temperature, breast temperature, breast engorgement, pain levels, and discomforting levels were statistically different between the two groups at 5 and 30 min after intervention (p < .001). The results of generalized estimating equation analysis indicated that, with the exception of body temperature, all variables remained more significant (p < .0001) to improving engorgement symptoms in the experimental group than those in the control group, after taking related variables into account. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: Our findings provided empirical evidence supporting that Gua-Sha therapy may be used as an effective technique in the management of breast engorgement. By using Gua-Sha therapy, nurses can handle breast engorgement problems more effectively in primary care and hence help patients both physically and psychologically.


Asunto(s)
Acupresión , Lactancia Materna/efectos adversos , Femenino , Humanos , Taiwán
13.
Biosci Biotechnol Biochem ; 73(12): 2589-94, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19966494

RESUMEN

Ganoderma lucidum (G. lucidum) is a medicinal mushroom having biological effects such as immunomodulation and anti-tumor actions. In China and many other Asian countries, G. lucidum is used as a folk remedy to promote health and longevity. Although many studies have shown that G. lucidum modulates the immune system, including, for example, antigen-presenting cells, natural killer (NK) cells, and the T and B lymphocytes, the effects of G. lucidum on the WEHI-3 leukemic BALB/c mice are unclear. We attempted to determine whether G. lucidum would promote immune responses in BALB/c mice injected with WEHI-3 leukemia cells. The effects of G. lucidum on the survival rate of WEHI-3 leukemia cells injected into BALB/c mice were examined. It increased the percentages of CD3 and CD19, but decreased the percentages of Mac-3 and CD11b markers, suggesting that differentiation of the precursor of T and B cells was promoted but macrophages were inhibited. It decreased the weight of spleens as compared with control mice. It also promoted phagocytosis by macrophage from peripheral blood mononuclear cell (PBMC) and it also promoted natural killer cell activity. It decreased the percentage of leukemia cells in the spleens of mice before they were injected with WEHI-3 cells. Apparently, G. lucidum affects murine leukemia WEHI-3 cells in vivo.


Asunto(s)
Leucemia/inmunología , Leucemia/patología , Reishi/química , Reishi/inmunología , Animales , Biomarcadores/metabolismo , Extractos Celulares/inmunología , Extractos Celulares/farmacología , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Concanavalina A/inmunología , Inyecciones , Células Asesinas Naturales/efectos de los fármacos , Células Asesinas Naturales/inmunología , Leucocitos/efectos de los fármacos , Leucocitos/inmunología , Leucocitos/metabolismo , Hígado/efectos de los fármacos , Hígado/patología , Macrófagos/efectos de los fármacos , Macrófagos/inmunología , Masculino , Ratones , Ratones Endogámicos BALB C , Fagocitosis/efectos de los fármacos , Fagocitosis/inmunología , Bazo/efectos de los fármacos , Bazo/inmunología , Bazo/patología , Análisis de Supervivencia , Factores de Tiempo , Ensayos Antitumor por Modelo de Xenoinjerto
14.
Am J Chin Med ; 37(6): 1023-30, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19938213

RESUMEN

Ear acupuncture stimulation has been used for body weight reduction as early as the 1970s. Several hypotheses have been proposed in literature regarding its mechanism of action, among which are the effects of the stimulation of the hypothalamic satiety center on decreased neuropeptide Y production. Here, we present another possible mechanism to account for the temporary and short-term effects of ear acupuncture stimulation in the treatment of obesity, the sympathetic effects of the autonomic nervous system. 14 female volunteers underwent a randomized clinical trial of the ear acupuncture stimulation. A prospective, sham-point control, crossover study was performed with two sequential four-week stimulation periods separated by a two-week washout interval. The clinical features of and effects on the autonomic nervous system were recorded and analyzed. Decreased body weight was observed in both the experimental and the control groups in the first 4 weeks of stimulation. Sympathomimetic effects were also noted in both groups. Whereas the sympathomimetic effects and body weight reduction were sustained in the experimental group in the second 4 weeks of stimulation, such effects were not observed in the control group. Some sympathomimetic effects were noted in both the experimental and the control groups initially. This effect remained apparent in the experimental group in sequential stimulation but was lost in the control group. Consequently, we believe that sympathomimetic effects may account for the reduction in body weight by temporarily increasing basal metabolic rate and decreasing appetite, but the body may regain weight after the termination of such effects. Accordingly, the combination of an optimal exercise and diet program with repeated acupoint therapy may be necessary to maintain a healthy body weight.


Asunto(s)
Acupuntura Auricular , Peso Corporal , Obesidad/terapia , Sistema Nervioso Simpático/fisiología , Pérdida de Peso , Adulto , Apetito , Metabolismo Basal , Índice de Masa Corporal , Estudios Cruzados , Femenino , Humanos , Persona de Mediana Edad , Obesidad/fisiopatología , Estudios Prospectivos , Método Simple Ciego , Adulto Joven
15.
Chin Med J (Engl) ; 122(15): 1743-8, 2009 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-19781318

RESUMEN

BACKGROUND: Post-operation pain is a very subjective phenomenon. The aim of this study was to find out the effects of acupuncture or electro-acupuncture on post-cesarean pain. METHODS: Sixty women, who had had spinal anesthesia during cesarean section at the Department of Obstetrics of China Medical University Hospital, were randomly assigned to the control group, the acupuncture group, and the electro-acupuncture group. After the operation, we applied subjects with acupuncture or electro-acupuncture on the bilateral acupuncture point, San Yin Jiao (Sp6), and the patient controlled analgesia (PCA). The first time of requesting morphine, the frequency of PCA demands in 24 hours, and the doses of PCA used were recorded double blindly. In addition, monitoring the subjects' vital signs, the opioid-related side effects, and the pain scores was done. RESULTS: The results showed that the acupuncture group and the electro-acupuncture group could delay the time of requesting morphine up to 10 - 11 minutes when compared with the control group. The total dose of PCA used within the first 24 hours was 30% - 35% less in the acupuncture group and the electro-acupuncture group when compared with the control group, which was indicated in statistical significance. However, there was no significant difference between the acupuncture group and the electro-acupuncture group. The electro-acupuncture group's and the acupuncture group's pain scores were lower than the control group's within the first 2 hours. Both were statistically significant. However, two hours later, there were no significant differences of the visual analogue scale (VAS) scores between either of the treatment groups and the control group. Finally, the incidence of opioid-related side effects, such as dizziness, was less in the acupuncture group and electro-acupuncture group than in the control group. CONCLUSIONS: This study shows that the application of acupuncture and electro-acupuncture could definitely delay the time of requesting pain relief medication after cesarean section and decrease the PCA doses used within the first 24 hours.


Asunto(s)
Terapia por Acupuntura/métodos , Cesárea , Dolor Postoperatorio/terapia , Adulto , Analgésicos/uso terapéutico , Femenino , Humanos , Masculino , Morfina/uso terapéutico , Dolor Postoperatorio/tratamiento farmacológico , Embarazo
16.
In Vivo ; 23(5): 755-9, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19779111

RESUMEN

Enhanced fruit and vegetable consumption is closely related to reduced cancer incidence as shown in epidemiological studies. Ganoderma lucidum, one of the most well-known traditional Chinese medicines, has been demonstrated to have pharmacological activities and antitumor effects, in Asian populations. However, the promotion of immune responses in normal BALB/c mice is unclear. In the present study, we investigated the immune responses of BALB/c mice after treatment with G. lucidum extract in vivo. The results demonstrated that G. lucidum extract was able to promote the proliferation of splenocytes under Concanavalin A or lipopolysaccharide stimulation. Compared with the control group, phagocytosis of macrophage was significantly enhanced by intraperitoneal administration of G. lucidum extract at both 3 and 6 mg/kg. Compared with the control group, natural killer cell activity was significantly enhanced by intraperitoneal administration of G. lucidum extract (6 mg/kg). Results of cytometric bead array and flow cytometry indicated that the expressions of interleukin-6 and interferon-gamma also increased (p<0.001) by treatment with G. lucidum extract (3 and 6 mg/kg). In conclusion, the findings of this study implied that G. lucidum extract was able to effectively promote immune responses in BALB/c mice.


Asunto(s)
Adyuvantes Inmunológicos/farmacología , Medicamentos Herbarios Chinos/farmacología , Sistema Inmunológico/efectos de los fármacos , Reishi/química , Animales , Proliferación Celular/efectos de los fármacos , Concanavalina A/farmacología , Sistema Inmunológico/inmunología , Interferón gamma/metabolismo , Interleucina-6/metabolismo , Células Asesinas Naturales/efectos de los fármacos , Células Asesinas Naturales/inmunología , Lipopolisacáridos/farmacología , Macrófagos/efectos de los fármacos , Macrófagos/fisiología , Ratones , Ratones Endogámicos BALB C , Fagocitosis/efectos de los fármacos , Fagocitosis/fisiología , Bazo/citología , Bazo/efectos de los fármacos , Bazo/inmunología
17.
Am J Chin Med ; 36(6): 1185-98, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-19051345

RESUMEN

Pulmonary inflammation is a characteristic of many lung diseases. Increased levels of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and proinflammatory cytokines, such as interleukin-1beta (IL-1beta), tumor necrosis factor-alpha (TNF-alpha) and IL-8, have been correlated with lung inflammation. In this study, we used lipopolysaccharide (LPS) to induce iNOS, COX-2, and cytokines (TNF-alpha, IL-1beta, and IL-8) productions in human lung epithelial cells (A-549). Leaf of Eriobotrya japonica (Pi-Pa-Ye, PPY), a traditional Chinese medicine for the treatment of pulmonary inflammatory diseases, was capable of suppressing LPS-induced cytokine productions in a dose-dependent manner. Moreover, the suppression of PPY on the cytokine productions resulted from the inhibition of inhibitory kappaB-alpha phosphorylation and nuclear factor-kappaB (NF-kappaB) activation. Analysis of the anti-inflammatory effects of ursolic acid and oleanolic acid, the triterpene compounds present in PPY, showed that ursolic acid significantly inhibited LPS-induced IL-8 production, NF-kappaB activation, and iNOS mRNA expression, whereas oleanolic acid did not have these effects. In conclusion, our findings suggested the potential mechanisms of PPY and its active component, ursolic acid, in the treatment of pulmonary inflammation.


Asunto(s)
Citocinas/inmunología , Medicamentos Herbarios Chinos/farmacología , Eriobotrya/química , Pulmón/inmunología , FN-kappa B/inmunología , Transducción de Señal/efectos de los fármacos , Triterpenos/farmacología , Línea Celular , Medicamentos Herbarios Chinos/química , Células Epiteliales/efectos de los fármacos , Células Epiteliales/enzimología , Células Epiteliales/inmunología , Expresión Génica/efectos de los fármacos , Humanos , Lipopolisacáridos/inmunología , Pulmón/efectos de los fármacos , Pulmón/enzimología , Hojas de la Planta/química
18.
Anticancer Res ; 28(2A): 1093-9, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18507059

RESUMEN

Gypenosides (Gyp), components of Gynostemma pentaphyllum Makino, were found to induce suppression of human tongue squamous cell carcinoma SCC4 cell growth and induce apoptosis in response to overexpression of reactive oxygen species, calcium (Ca(+2)) and to decrease mitochondrial membrane potential in vitro. In this study, the effect of Gyp on cell migration and invasion of human tongue SCC4 cells was examined. SCC4 cells treated in vitro with Gyp migrated and invaded less than cells treated with phosphate-buffered saline (PBS) as a control. Gyp inhibited migration and invasion by down-regulating the production of RAS, NFkappaB, COX2, ERK1/2 and MMP-9 relative to PBS only. These results show that Gyp inhibits invasion and migration of human tongue SCC4 cells by down-regulating proteins associated with these processes, resulting in reduced metastasis.


Asunto(s)
Carcinoma de Células Escamosas/enzimología , Carcinoma de Células Escamosas/patología , Metaloproteinasa 9 de la Matriz/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Neoplasias de la Lengua/enzimología , Neoplasias de la Lengua/patología , Línea Celular Tumoral , Movimiento Celular , Regulación hacia Abajo , Gynostemma , Humanos , Metaloproteinasa 2 de la Matriz/metabolismo , Extractos Vegetales/farmacología , Quinasa de Factor Nuclear kappa B
19.
In Vivo ; 22(2): 223-30, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18468407

RESUMEN

Berberine, a yellow benzylisoquinoline alkaloid, is a constituent of Coptis chines and is commonly used in Chinese herbal medicine for patients with gastrointestinal disorders. The pharmacological effects of berberine include anti-inflammation, antidiarrhetic, antimalarial, and even antimicrobial activities. However, its mechanism of action on the cell migration of human gastric cancer SNU-5 cells is not fully understood. The effects of berberine on the percentage of viable cells were examined first and it was found that berberine induced dose-dependent inhibition in human gastric cancer SNU-5 cells. The effect of berberine on the levels of reactive oxygen species (ROS) and matrix metalloproteinase-1, -2, -7 and -9 was then examined using Western blotting and the results showed that berberine induced ROS production for up to 6 hours of incubation. It was also found that berberine induced downregulation of MMP-1 -2, and -9 but did not affect the level of MMP-7. The mRNA levels of MMPs in SNU-5 cells after treatment with berberine for 24 hours were investigated using a polymerase chain reaction and the results showed that berberine inhibited the gene expression of MMP-1, -2 and -9 in human SNU-5 cells but it did not affect MMP-7. In conclusion, berberine appears to exert its anticancer properties by inducing ROS production and prevention of cell migration via inhibition of the gene expression of MMP-1, -2 and -9 in human gastric cancer SNU-5 cancer cells.


Asunto(s)
Berberina/farmacología , Regulación hacia Abajo , Metaloproteinasa 1 de la Matriz/metabolismo , Metaloproteinasa 2 de la Matriz/metabolismo , Metaloproteinasa 9 de la Matriz/metabolismo , Neoplasias Gástricas/tratamiento farmacológico , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Regulación Enzimológica de la Expresión Génica , Regulación Neoplásica de la Expresión Génica , Humanos , Técnicas In Vitro , ARN Mensajero/metabolismo , Estadística como Asunto , Neoplasias Gástricas/patología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA