1.Comparison of Contents of Triterpenoids,Polysaccharides and Heavy Metals in Ganoderma lucidum Sporule Powder and Ganoderma lucidum
China Pharmacy 2007;0(33):-
OBJECTIVE:To compare the contents of triterpenoids,polysaccharides and heavy metals in Ganoderma lucidum sporule powder and Ganoderma lucidum.METHODS:The triterpenoid compounds in Ganoderma lucidum sporule powder and Ganoderma lucidum samples were analyzed by HPLC;five heavy metals in the samples were determined by ICP-MS and the polysaccharides were quantified by anthrone-sulfuric acid method.RESULTS:There were significant differences beween Ganoderma lucidum sporule powder and Ganoderma lucidum in the HPLC characteristic chromatogram of triterpenoid compunds.The total content of polysaccharide in Ganoderma lucidum sporule powder was higher than in Ganoderma lucidum sample.However,the five heavy metals in the two materials showed no marked differences.CONCLUSION:This study provides theoretical basis for the pharmacological difference between Ganoderma lucidum sporule powder and Ganoderma lucidum.
2.Neuroprotective effects of statins in subarachnoid hemorrhage
International Journal of Cerebrovascular Diseases 2015;23(7):554-558
Subarachnoid hemorrhage (SAH) is a common cerebrovascular disease,its disability and mortality rates are higher.It has been confkmed that early brain injury (EBI) and cerebral vasospasm (CVS) are the major pathophysiological mechanisms of causing neurological dysfunction and death after SAH.There are a variety of factors of causing CVS and EBI,including nitric oxide,endothelin,oxyhemoglobin,and proinflarnmatory cytokines.A large number of animal experiments and clinical research have confrmed that statins have neuroprotective effects.This article reviews the neuroprotective effects and its mechanisms of statins in SAH
3.Proliferation Inhibition and Apoptosis of Human Gastric Cancer Cells Induced by Oridnin
China Pharmacy 2005;0(15):-
OBJECTIVE: To investigate the growth inhibition and apoptosis of BGC-823 gastric cancer cells induced by Oridonin and its mechanism. METHODS: The Oridonin-treated BGC-823 cells were detected using MTT, transmission electron microscopy (TEM), TUNEL and flow cytometry (FCM) etc. RESULTS: Oridonin(16, 32, and 64 ?g?mL-1) significantly inhibited the proliferation of BGC-823 cells in dose and time dependent manner, with the inhibition rates at 68.5%, 90.8%, and 94.7%, respectively within 24, 48, and 72 h after treatment with 64 ?g?mL-1 Oridnin. When treated with 32 ?g?mL-1 Oridonin for 2 h,mitochondria and endoplasmic reticulum were proliferated and swelled under TEM; At 8 h,vacuolization of mitochondria and endoplasmic reticulum were noted, the internal structure disappeared, and the nuclear chromatin margination vacuolization were in typical apoptosis change; At 24 h, BGC-823 cells were arrested at G2/M phase, and the apoptosis rate was 37.8% under FCM. CONCLUSION: Oridonin inhibiting proliferation and apoptosis of BGC-823 cells maybe related to G2/M phase arresting, and Oridonin induce apoptosis of BGC-823 cells may through mitochondria or endoplasmic reticulum apoptosis pathway.
4.Application of peripheral blood gene expression profiling in cancer diagnosis
Journal of International Oncology 2013;40(10):745-748
Peripheral blood gene expression profiling represents the pattern of expression of all genes in peripheral blood cells.By comparing the different gene expression of peripheral blood between cancer patients and healthy control or patients with alternative types of tumors,we can draw genes of different expression and further analyze the characteristic gene expression profiling to assist diagnosis and treatment.There have been remarkable advance in study of peripheral blood gene expression profiling in head and neck tumors,chest tumors,abdominal tumors,urinary tract and male reproductive system tumors,gynecological tumors and so on,which lay a foundation for further clinical applications.
5.Study on the antioxidant activity of extracts from Enteromorpha prolifera
Chinese Journal of Marine Drugs 2001;0(05):-
Objective To investigate the antioxidant activity of Enteromorpha prolifera by ABTS radical scavenging assay in vitro and provide scientific basis for exploitation of Enteromorpha prolifera.Methods The antioxidant activities of extracts by different solvents from Enteromorpha prolifera and water extracts from different Enteromorpha prolifera samples were investigated by ABTS radical scavenging assay.Moreover,the antioxidant ability of the water extract from Enteromorpha prolifera was evaluated by using caffeic acid and ascorbic acid as positive control standards.Results The water extract from Enteromorpha prolifera provided the highest radical scavenging activity,and the antioxidant capability of 1mL of water extract from Enteromorpha prolifera was equivalent to 1mL of 2.55 10~(-3) mg?mL~(-1) caffeic acid or 1mL of 2.89?10~(-3)mg?mL~(-1) ascorbic acid.However,the extraction methods,dry sample or not and different kinds of Enteromorpha prolifera samples had certain influence on the antioxidant activity of water extract from Enteromorpha prolifera. Conclusion There are abundant antioxidant compounds present in the aqueous extract of Enteromorpha prolifera,and it can be exploited as latent oxidation inhibitor.
6.Determination and clinical significance analysis of ANF、PRA、AT-Ⅱ and ALD in the heart failure patients
Junhui LIANG ; Fengqin CHEN ; Fang ZHOU
Chinese Journal of Immunology 2000;0(08):-
Objective:To investigate the effect of ANF, PRA, AT-? and ALD on the occurrence of Heart failure patients and Congestive heart failure(CHF) .Methods:The plasma were measured by radioimmunoassay(RIA) in 163 patients(112 on heart failure patients,51 congestive heart failure)before and after taking Angiotensiin converting enzyme. The results were as foron: ll. Results:The concentrations of ANF, PRA,AT-? and ALD in acute myocardid infarction, Rheumatic valvuar disease, cor pulmonale and Hypertension patients were higher significantly than the contorl group(heart failure)( P 0.05) .After taking ACE inhibitor,AT an extent, the values were decreased-ANF 32.5%, AT-? 25.3 % and ALD 27.1 % , A positive correlation was shown between ANF system and RSSA system. Conclusion: The results suggested that monitoring of ANF,PRA,AT-? and AID with RIA technique showed a beneficial to heart's disease and heart's dysfunction.
7.An in vitro study of inhibitory activity of prothrombin to calcium oxalate crystallization
Junhui CHEN ; Jihong LIU ; Yongshang ZHANG
Chinese Journal of Urology 2001;0(10):-
Objective To study and evaluate the inhibitory role of ?-carboxyglutamic acid(Gla)in the Gla domain of prothrombin in the formation of calcium oxalate crystals. Methods The addition of morpholine and formaldehyde to the solution of prothrombin caused the conversion of 8 Gla to ?-methyleneglutamic acid (8?-MGlu)or 2 Gla to ?-methyleneglutamic acid(2?-MGlu) ,the inhibitory activity of which to calcium oxalate crystallization was detected with seeded crystallization technique. Results The conversion of Gla to ?-MGlu leads to the decreased inhibitory activity of prothrombin to calcium oxalate crystallization,the inhibitory index being decreased from normal 14.2 to 12.8 of 2?-MGlu or 5.0 of 8 ?-MGlu prothrombin respectively. Conclusions Gla in prothrombin may play an important role to inhibit the formation of calcium oxalate calculi.
8.Hyaluronic acid mixed with BMP-2 gene transfected bone marrow derived mesenchymal stem cells for repair of diaphyseal defects in rabbits
Junhui ZHANG ; Yongqiang CHEN ; Tingting TANG
Chinese Journal of Orthopaedics 1996;0(10):-
Objective To evaluate osteogenetic effectiveness of hyaluronic acid (HA) mixed with adenovirus mediated human bone morphogenetic protein-2 gene(Adv-hBMP-2) transfected bone marrow derived mesenchymal stem cells(BMSCs) of rabbits in the repair of radial shaft defects of rabbits. Methods The BMSCs were collected from bone marrow of rabbits, cultured and transfected by Adv-hBMP-2 in vitro. The radial shaft defects (1.5 cm) models of 20 rabbits (40 sides) were created and then respectively injected the cells and/or materials according to the following four groups (n=10): Ⅰ, Adv-hBMP-2 transfected BMSCs+HA; Ⅱ, Adv-hBMP-2 transfected BMSCs; Ⅲ, HA; Ⅳ, control. Results The bone defects of 6 out of 8 sides in the group Ⅰ were repaired completely and partial bone marrow cavities were revasculized. Only 3 sides were repaired completely in the group Ⅱ and no side was repaired completely in the groups Ⅲ and control. There were statistic significance between each groups in X-ray scores. In the groups ofⅠand Ⅱ, much woven callus formed in the sites of the bone defects in the 4-8th week after injection. Partial bone marrow cavities were revasculized in the 12th week after injection; while in the groups of HA and control, the sites of bone defects were mainly full of fibrous tissue and no healing happened. Both ends of the bone defects were hardened. There was significant difference statistically in the new trabecular bone area in the groups ofⅠand Ⅱ. The maximum vertical loading and elastic modulus were significant differenct in the group ⅠandⅡ. The ratios of average maximum vertical loading/normal value of radial shaft in the groups ofⅠandⅡwere 75.86% and 45.45%, respectively. Conclusion The tissue-engineered bone made by HA mixed with Adv-hBMP-2 transfected BMSCs can repair the bone defects in the radial shaft of rabbits. HA is a safe, effective carrier for tissue engineering.
9.Anesthesia Plan in Radiofrequency Ablation of Lung Cancer
Sanqiang DING ; Shaobin WANG ; Junhui CHEN
Journal of Chinese Physician 2001;0(01):-
Objective To evaluate the anesthesia efficacy and safety of superior thoracic epidural block combined with proper sedation in patients with radiofrequency ablation of lung cancer. Methods Sixty patients undergoing radiofrequency ablation of lung cancer were performed under epidural block with local anesthetic of 0.8~1.0% lidocaine, and the punctured point was applied at the T 6-7 or T 5-6 . Innovar and propofol were given to the patients during operation if necessary. ECG, HR, BP and SpO 2 were monitored, and anesthesia complications were recorded. Results The anesthesia efficacy was excellent, the intraopetative HR and BP were lower than those of preoperation(P
10.Expression and Significance of CA125 and CA15-3 in Human Breast Cancer
Boni DING ; Daojin CHEN ; Junhui WU
Journal of Chinese Physician 2001;0(01):-
Objectiv To investigate the expression and clinical significance of CA125 and CA15-3 in human breast cancer. Methods Radioimmunoassay method was used to determine the serum levels of CA125 and CA15-3 in 80 patients with breast carcinoma, 60 patients with benign breast diseases and 80 normal adults. Results The levels of serum CA125 and CA15-3 in patients with stage Ⅲ-Ⅳ breast carcinomas were significantly higher than those in patients with benign breast diseases,normal adults and stage Ⅰ~Ⅱ breast cancer patients (P0.05). Conclusion CA125 and CA15-3 are helpful to diagnose breast cancer, and can serve as a biological marker for monitoring tumor progression and evaluating prognosis in breast cancer.