1.EXPERIMENTAL STUDY OF THE PROTECTIVE EFFECT OF FOLIC ACID ON LIVER DAMAGE INDUCED BY ALCOHOL
Xikai XIONG ; Yanxian CHEN ; Dacui DONG ; Yan ZHANG ;
Acta Anatomica Sinica 1989;0(S1):-
68 NIH Mice (24-25g) were divided into three groups. Group A was normal control, group B was treated with 54% alcohol in the beverages 0.25ml/per day, and group C was administrated 54% alcohol mixed with folic acid 0.25ml/per day. The histochemical reaction and ultrastructural changes in liver were observed. The reaction of glycogen (PAS reaction), Mg-ATPase SDH LDH G-6-Pasc and ACP was demonstrated respectively by Chayen's, Wachstein-Meisel, Lojda, Bancroft's method, and some procedures of these techniques were modified. The results showed that under the protection effect of acid folic, the regularities seemed to be present in the changes of the following histochemical reactions in the liver cells of the group C (treaded by acid folic) the PAS reaction and the activities of Mg-ATPase SDH LDH G-6-Pase were similar to the group A and apparently higher than that in group B. The activities of ACP were lower those in group B(P
2.Effect of dehydroepiandrosterone on experimental osteoarthritis in rabbits
Hua-Chen YU ; Li-Dong WU ; Yan XIONG ; Jie FENG ;
Chinese Journal of Rheumatology 2003;0(09):-
Objective To observe the effect of intra-articular injection of dehydroepiandrosterone (DHEA)on the experimental osteoarthritis in rabbits and study the mechanism.Methods Forty rabbits un derwent unilateral anterior cruciate ligament transection(ACLT)and then divided into two groups randomly. 100?mol/L DHEA resolved in the dimethylsulphoxide were injected into the knees of experimental rabbits 4 weeks after transection,once a week for five weeks.Rabbits in the control group were treated under the same schedule using dimethylsulphoxide.All rabbits were killed 9 weeks after ACLT and the knee joints were evalu- ated by gross morphology and histology.The mRNA expression of metalloproteinases-3(MMP-3),tissue in- hibitor of metalloproteinases-1(TIMP-1)and interleukin-lbeta(IL-1?)in the cartilage and synovium was analyzed using reverse transcription polymerase chain reaction(RT-PCR).Results Gross morphologic in- spection and histological evaluation showed that the extent and grade of cartilage and synovium damage in the experimental group were less severe than the control group.The mRNA expression of MMP-3 in cartilage and synovium decreased significantly in the experimental group(both P<0.05).The mRNA expression of TIMP-1 in cartilage and synovium increased significantly in the experimental group compared with that in the control group(both P<0.05).No significant difference of IL-1?mRNA expression in cartilage was found between the experimental and the control groups(P>0.05).The mRNA expression of IL-1?in the synovium was signifi- cantly suppressed in the experimental group compared with that in the control group(P<0.01).Conclusion DHEA protects against cartilage degradation,alleviates synovium inflammation and inhibits the progression of osteoarthritis in the experimental model.Down-regulation of MMP-3 and up-regulation of TIMP-1 in cartilage and synovium and IL-1?in the synovium may be the mechanism of the protective effect of DHEA on os- teoarthritis.
3.Effects of cold preservation and reperfusion injury on the regeneration of donor liver and associated mechanisms
Jin ZHU ; Xiaowu LI ; Yujun ZHANG ; Yan XIONG ; Jiahong DONG
Chinese Journal of Digestive Surgery 2009;8(6):445-448
Objective To investigate the effects of cold preservation and reperfusion injury on the regen-eration of donor liver and to study the mechanisms. Methods Male SD rats were divided in to sham group (6 rats), UW 1 h group (48 rats) and UW 12 h group (48 rats). Liver tissue specimens were collected at different time points after orthotopic liver transplantation or sham operation. The morphology of liver tissue was observed via light microscope and transmission electron microscope. Proliferation of hepatocytes and sinusoidal endothelial cells (SECs) were assessed by a double immunostaining technique using antibodies against rat endothelial cell antigen-1 and bromodeoxyuridine (BrdU). Expression of vascular endothelial growth factor (VEGF) and its receptors, fins-like tyrosine kinase-1 (flt-1) and fetal liver kinase-1 (flk-1) was evaluated by immunohistochemistry. The mRNA expression of flt-1 was detected by a RT-PCR method. Mean comparison in groups was conducted by one-way ANOVA or t test. Results BrdU labeling indexes of hepatocytes and SECs in UW 12 h group was significantly higher than those in UW 1 h group (F = 61.45,41.4, P < 0.05). The proliferation of hepatocytes peaked at 48 h after operation in both UW 1 h group and UW 12 h group. However, the proliferation of SECs was fallen behind compared to hepatocytes, with a peak appeared at 72 h in UW 1 h group and at 96 h in UW 12 h group, respec-tively. The expression of VEGF was up-regulated in both UW 1 h group and UW 12 h group compared to sham group. Furthermore, expression of flt-1 and flk-1 was found to be mainly limited in SECs, with a peak in expres-sion occurring between 72 h and 96 h, coinciding with the peak in SECs proliferation in UW 1 h group. Conversely, flt-1 was found to be reduced significantly on mRNA level at any time throughout the experiment in UW 12 h group compared to sham group (F = 141.67, P < 0.05). Conclusion Reduced expression of flt-1 results in a retarded regeneration of SECs, and then the recovery of rat donor liver function is delayed after cold-preserved transplantation.
4.Application value of serum cystatin C for diagnosing early kidney injury of diabetes and hypertension
Qingze DONG ; Tao JIN ; Chang FU ; Yan XIONG
Chinese Journal of Postgraduates of Medicine 2014;37(31):30-32
Objective To evaluate the significance of cystatin C (CysC) in the diagnosis for early kidney injury of diabetes and hypertension by testing serum CysC and serum creatinine concentration and urinary albumin excretion (UAE) in patients with type 2 diabetes and primary hypertension.Methods Sixty-six patients with type 2 diabetes were selected,among whom the total 38 patients whose UAE were 30-300 mg/24 h were classified into early diabetic nephropathy (DN) group,and 28 patients whose UAE were < 30 mg/24 h were classified into non diabetic nephropathy (NDN) group.Fifty-two patients with primary hypertension were selected,among whom the total 25 patients whose UAE were ≥ 30 mg/24 h were classified into hypertension with kidney injury group,and 27 patients whose UAE were < 30 mg/24 h were classified into hypertension without kidney injury group.Sixty health people were selected as control group.The UAE,CysC and creatinine levels were detected.Results The CysC in early DN group was significantly higher than that in control group and NDN group [(1.84 ± 0.83)mg/L vs.(0.41 ± 0.62) and (0.66 ± 0.59) mg/L],and there was statistical difference (P < 0.05).There was no statistical difference in CysC between NDN group and control group (P > 0.05).There were no statistical differences in creatinine and UAE among the DN group,NDN group and control group (P > 0.05).The CysC in hypertension with kidney injury group was significantly higher than that in control group and hypertension without kidney injury group [(0.93 ± 1.04) mg/L vs.(0.41 ± 0.62) and (0.69 ± 0.57) mg/L],and there was statistical difference (P < 0.05).There was no statistical difference in CysC between hypertension without kidney injury group and control group (P > 0.05).There were statistical differences in creatinine and UAE among hypertension with kidney injury group,hypertension without kidney injury group and control group (P > 0.05).Conclusion CysC can be regarded as the value to judge early kidney injury,and it is very important inunderstanding patient's condition,by which appropriate treatment can be carried out to prevent or decrease the occurrence of chronic renal failure.
5.Determination Optimization of Total Amino Acids in Runing Pills by Orthogonal Design
Yi WU ; Yan XU ; Yingying ZHENG ; Xin XIONG ; Dong WANG
China Pharmacist 2014;(5):775-778
Objective:To optimize the determination technology for the total amino acids in Runing pills. Methods:The process was optimized by L9 (34 ) orthogonal design using the hydrolysis temperature, hydrolysis time and hydrochloric acid concentration as the evaluation factors,and the content and yield of total amino acids as the evaluation indices. Results: The optimal determination condi-tions were as follows:the hydrolysis temperature was 110℃, the hydrolysis time was 22 h and the hydrochloric acid concentration was 6 mol·L-1 . Conclusion:The optimal determination technology can be applied in the total amino acids from Runing pills,which pro-vides the basis for the further research of Runing pills.
6.Syndrome Differentiation Rules and Medication Frequency Analysis of Bulging Disease Cases in Ming and Qing Dynasties
Yan XIONG ; Donghui YU ; Ting DONG ; Faying YI ; Shengjia LU
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(5):831-837
This study was aimed to collect relevant provisions of bulging disease medical records in the Ming and Qing dynasties to excavate the syndrome differentiation, drug law and medication frequency analysis. A database was established to analyze relevant provisions. The results showed that the syndromes of liver stagnation and spleen deficiency, dampness-heat accumulation, spleen-yang deficiency are the most common type. The mainly used drugs are from the category to eliminate dampness and water, and to tonify the deficiency. The top three used drugs are poria, atractylodes, and dried citrus peel. It was concluded that medications used in the Ming and Qing dynasties were mainly targeted to the disordered zangfu-organ, which was mainly about the spleen and the stomach. The syn-drome differentiation is the mixture of deficiency and excess. And deficiency is the main part. The medication should combine tonification and reducing. And tonification should be paid attention to. The syndrome differentiation and treatment should be coordinated and the primary and secondary aspect should be identified. These rules provide ref-erence effect for the clinical practice and scientific research of bulging disease treatment.
7.Experimental study of p53 plasmid transfected into HeLa cells by ultrasound microbubble intensifier
Yan TANG ; Zhengai XIONG ; Pan LI ; Zhigang WANG ; Peiting DONG
Journal of Third Military Medical University 2003;0(23):-
Objective To explore the feasibility,efficiency and effect of wide-type p53 gene transfected into cervical cancer HeLa cells by ultrasound microbubble intensifier. Methods Based on the optimum parameter of ultrasound wave irradiation (0.5 W/cm2 ,30 s) selected in pre-experiment,HeLa cells were divided into 5 groups:(A)simple plasmid group,(B)plasmid-ultrasound group,(C)plasmid-ultrasound-microbubble group,(D)plasmid-liposome group,(E)blank control group. At 24-48h after transfection,the transfection efficiency was detected by fluorescence microscope,the mRNA expression of p53 was detected by RT-PCR,the cell cycle was detected by flow cytometry,and the inhibition rate of cells growth was detected by MTT assay. Results Fluorescence microscopy showed that the expression of green fluorescent protein in group C was higher than that in group Band group D (P
8.Clinical Application of Disease-syndrome Combination and Formula-syndrome Relation
Jie WANG ; Xingjiang XIONG ; Jiangquan LIAO ; Wenrui JIANG ; Yan DONG ; Guang CHEN
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(3):387-391
The traditional conotation of combination of disease and syndrome means the combination of disease differentiation in traditional Chinese medicine (TCM) diseases and TCM syndrome differentiation,which was derived from the Yellow Emperor's Inner Classic.And the Treatise on Cold Damage and Miscellaneous Diseases describes the clinical application of this theory.Under the background of integrative medicine,the modern conotation of combination of disease and syndrome means TCM syndrome differentiation and treatment based on modern medicine disease differentiation,which is commonly used in the current clinical practice.The disease and syndrome combination diagnosis mode based on syndrome,etiology,pathology and pharmacology can understand the disease from a multiple and comprehensive level,in order to realize the combination and complementation of advantages from both medicines.In addition,formula-syndrome relation means the relationship between the formula and its relevant indications.In general,indications often involve syndromes,symptoms,diseases and body constitutions.And the application of formula in the Treatise on Cold Damage and Miscellaneous Diseases is the representative of this theory.Hence,the application of associated classical formula gives example to the clinical formula-syndrome relation application in modem times.
9.Comparison of transforaminal peripheral nerve stimulation and spinal cord stimulation for postherpetic neuralgia
Shuo TANG ; Dong YAN ; Jinglu CUI ; Hong GAO ; Donglin XIONG ; Xiang LIAO
Journal of Regional Anatomy and Operative Surgery 2017;26(7):505-508
Objective To compare the effects of transforaminal peripheral nerve stimulation(PNS) and spinal cord stimulation(SCS) in treatment of postherpetic neuralgia.Methods A total of 64 patients with postherpetic neuralgia in our hospital from January 2015 to January 2016 were divided into PNS group and SCS group according to random number table.Both two groups were treated with PNS or SCS for 14 days,respectively.Visual analogue scale(VAS) and piasburgh sleep quality index(PSQI) were adapted to assess the effects at the different time of preoperation, postoperation 1 day,1 week,1 month,2 months.Results At the preoperation and 2 months postoperation,in PNS group,the VAS were (8.4±1.6) and (1.4±1.0),the PSQI were (16.1±2.1) and (5.8±1.3),respectively;meanwhile in the SCS group,the VAS were (8.6±1.8) and (2.9±1.2),the PSQI were (15.6±2.3),(7.5±1.5),respectively.Obviously,the VAS and PQSI at different follow-up stages were improved after transforaminal PNS or SCS treatment, the differences were signicant(P<0.05).Moreover,the PNS group had lower VAS and higher PQSI compared with the SCS group at different follow-up stages,the differences were signicant(P<0.05).Conclusion The transforaminal PNS achieved satisfying outcomes on pain relief and quality of sleep improvements for the postherpetic neuralgia patients,which was superior to that of the SCS.
10.Clinical Features and Genetic Analysis of Pediatric Patients with Alagille Syndrome Presenting Initially with Liver Function Abnormalities
Yan LIU ; Hong WANG ; Chen DONG ; Jie-Xiong FENG ; Zhi-Hua HUANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(2):304-309
Alagille syndrome (AGS) is a multisystem disorder and caused by mutations in JAG1 or NOTCH2 gene.The diagnosis of AGS is hampered by its highly variable clinical manifestations.We performed a retrospective analysis on 16 children diagnosed as having AGS in recent five years in our hospital.Cholestasis was seen in 15 patients (93.8%),heart disease in 12 (75%),characteristic facies in 7 (43.8%),and butterfly vertebrae in 7 (43.8%).Ophthalmology examination was not performed on all the patients.Further,serum biochemical parameters were compared between AGS and 16 biliary atresia (BA) patients who were confirmed by surgery.Elevated liver enzymes were seen in all the patients.Serum total cholesterol (TC) (P=0.0007),alanine aminotransferase (ALT) (P=0.0056),aspartate aminotransferase (AST) (P=0.0114),gamma-glutamyl transferase (GGT) (P=0.035) and total bile acid (TBA) levels (P=0.042) were significantly elevated in AGS patients compared to those in BA cases.However,there were no significant differences in serum total bilirubin (TB),conjugated bilirubin (CB) and albumin (ALB) between the two groups.We identified 14 different JAG1 gene variations and 1 NOTCH2 gene mutation in 16 Chinese AGS patients.Our study suggested clinical features of AGS are highly variable and not all patients meet the classical diagnostic criteria.It was suggested that hypercholesterolaemia and significantly elevated GGT,TBA and ALT may be helpful to diagnose AGS.Genetic testing is integral in the diagnosis of AGS.