1.Fluorescent measurements of H~+/K~+ exchange in primary cultured inner medullary collecting duct cell monolayers or rabbit kidney
Qianming XIA ; Jian HUANG ; Zhenliang XIAO ; Guisheng QIAN
Chinese Pharmacological Bulletin 1987;0(02):-
AIM To establish the fluorescent measurement technique for H+ /K+ exchange in primary cultured IMCD cell monolayers of rabbit kidney. METHODS To measure H+ /K+ exchange in the primary cultured IMCD cell monolayers under different CO2 concentrations by the BCECF/AM fluorescent probe. RESULTS [pH], recovery rate after acid loaded in the respiratory acidosis group was 0.0620 ? 0.012, and was significantly higher than that of the control group (0.0504 ? 0.009, P 0.05). CONCLUSION The fluorescent measurements of H+ /K+ exchange in primary cultured IMCD cell monolayers of rabbit kidney has many benefits which are convenient manipulation, stable and credit result, economy and safety, this method should further be popularized.
2.Fluorescent measurements of H+/K+ exchange in primary cultured inner medullary collecting duct cell monolayers of rabbit kidney
Qianming XIA ; Jian HUANG ; Zhenliang XIAO ; Guisheng QIAN
Chinese Pharmacological Bulletin 2001;17(2):230-232
AIM To establish the fluorescent measurement technique for H+/K+ exchange in primary cultured IMCD cell monolayers of rabbit kidney. METHODS To measure H+/K+ exchange in the primary cultured IMCD cell monolayers under different CO2 concentrations by the BCECF/AM fluorescent probe.RESULTS [pH]i recovery rate after acid loaded in the respiratory acidosis group was 0.0620±0.012,and was significantly higher than that of the control group(0.0504±0.009,P<0.05);which in the respiratory alkalosis group was 0.0476±0.007, there was no signifacant difference between ALG and CG (P>0.05). CONCLUSION The fluorescent measurements of H+/K+ exchange in primary cultured IMCD cell monolayers of rabbit kidney has many benefits which are convenient manipulation, stable and credit result, economy and safety , this method should further be popularized.
3.Application of low lateral drainage of bilateral alternating and turokinaseinstillation in treatment of spontaneous intraventricular hemorrhage
Yueqing HUANG ; Shaobo YE ; Fang WANG ; Weitian QIAN ; Weili XIAO
Chinese Journal of Primary Medicine and Pharmacy 2011;18(6):725-726
Objective To evaluate the clinical value of combined treatment for spontaneous intraventricular hemorrhage. Methods 26 patients with spontaneous intraventricular hemorrhage were conducted on the whole turn of low lateral drainage of bilateral urokinase infusion therapy, supplemented by lumbar puncture cerebrospinal fluid replacement. Results The total effective rate was 84.62% ,mortality rate was 15. 38%. Conclusion Bilateral lateral drainage of alternating low urokinase infusion,supplemented by lumbar puncture cerebrospinal fluid replacement was effective in treatment of spontaneous intraventricular hemorrhage. It could reduce mortality in patients with intraventricular hemorrhage and increase the patients' prognosis.
4.An experimental study of folic acid rivaling methylenetetrahydrofolate reductase (MTHFR) gene
Wenlin XIAO ; Bing SHI ; Qian ZHENG ; Yan WANG ; Lei HUANG
Journal of Practical Stomatology 2010;26(1):15-19
Objective: To further understand the role of folic acid supplements rivaling MTHFR gene silencing in pathogenesis of NCLP, RNA interference (RNAi) was applied to knock down MTHFR in mouse embryonic palatal mesenchymal (EPM) cells. Methods: MTHFR ShRNA expression vector were transfected into the primary cultured EPM cells. MTT was used to observe cell proliferation after MTHFR gene silencing. FCM was used to observe cell cycle after MTHFR gene silencing. Results: The results showed the cells proliferation had an inequality amelioration after using folic acid supplements in MEPM cells with MTHFR gene silencing. Using folic acid supplements rivaled the effect of MTHFR gene silencing had a dose-dependent manner. Using 20 μg/ml folic acid supplements could improve the cell proliferation to achieve normal level of cell proliferation. Conclusion: MTHFR gene is an important candidate gene of NCL/P. Using folic acid supplements could prevent teratogenic MTHFR gene silencing for embryonic palate development.
5.The protective effects and mechanism of Green Tangerine induced hypertension and mild hypothermia on brain infarction during focal cerebral ischemia and reperfusion
Hong CHEN ; Kun QIAN ; Fei ZENG ; Xiao-Lin HUANG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(11):-
Objective To investigate the protective effects of Green Tangerine induced hypertension and mild hypothermia on focal cerebral ischemia and reperfusion and local cerebral glucose utilization(LCGU)in the in- farction rim in rats.Methods A total of 64 rats were used and randomly divided into a control group,a Green Tan- gerine induced hypertension group,a mild hypothermia group and a combination therapy group.The neurologic defi- cits,infarct size and LCGU were observed in the rats with focal cerebral ischemia and reperfusion.Results Com- pared with the control group,the neurologic deficits(P
6.Clinical research on corneal perforation
Cheng-Huan, DONG ; Yan, XUE ; Xiao-Qian, ZHENG ; Yan, HUANG
International Eye Science 2014;(8):1502-1503
AIM: To study the clinical characteristics of corneal perforation ( CP) .
METHODS:A retrospective analysis in July 1995 to July 2010 the First Affiliated Hospital of Fujian Medical University diagnosed CP 72 patients ( 72 eyes ) , clinical characteristics of all the patients were analyzed.
RESULTS: The incidence of corneal ulcer perforation rised year by year, the morbidity of male and female was 17:7, the onset age focused on 48 years old. Of 23 industrial workers ( 32%) with clear history of trauma, pathogeny identification results:top two:fungal infection and Acanthamoeba keratitis. A using history of glucocorticoid was found in 10 cases.
CONCLUSION:There are plenty of primary causes of CP such as traumas, fungal infection, Acanthamoeba keratitis, eroded keratitis, etc. CP happens in middle-aged males in Fujian province, most traumas are the causes, the main pathogenic bacteria is fungal infection.
7.Expression increase of chymase gene in diabetic hamsters
Kexiang ZHAO ; Qian XIAO ; Changquan HUANG ; Yuan GAO
Basic & Clinical Medicine 2006;0(09):-
Objective To explore how does chymase affect diabetic cardiomyopathy by investigating the gene expression of chymase and the relationship between the gene expression of chymase and the angiotensin Ⅱ in the cardiomyopathy of streptozotocin-induced diabetic hamasters. Methods Diabetic hamsters were induced by intraperitoneal injection of STZ 40 mg/kg once a day for 3 days. After stabilization of diabetic state for 18 weeks, the myocardial ultrastructure was observed with electron microscope and pathologic changes were observed by light microscopy. Immunohistochemistry was used to measure the level of expression of type Ⅰ and type Ⅲ collagen in diabetic and normal hamster hearts. Level of blood glucose, lipoprotein was determined using biocehemical methods. Apoptosis of cardiomyocyte was measured using TUNEL methods. Radioimmunuoassay method was used to determine the level of angiotensin Ⅱ. RT-PCR was used to determine chymase gene expression (corrected by?-actin). ResultsComparing with the control group, levels of serum glucose, TG, TC, LDL in DM group were much higher. Concentrations of collagen Ⅰ, Ⅲ and angiotensin Ⅱ [(95.8?16.0)?g/kg tissue vs (51.1?20.8)?g/kg tissue] in myocardial tissue in DM group were much higher than those in control group. RT-PCR result showed: Comparing with the control group, the mRNA expression of chymase in DM group was promoted significantly (0.810?0.026 vs 0.490?0.087). Conclusion In diabetic hamsters, the gene expression of chymase were much higher than thatin the control group, accompanying higher level of Angiotensin Ⅱ, higher levels of expression of collagen Ⅰ and Ⅲ. This result suggests that chymase plays an important role in the diabetic cardiomyopathy by promoting the activity of chymase.
8.Bidirectional Mendelian randomization study on gut microbiota and constipation
LI Hongmei ; XIAO Qian ; XIE Xiaoxiao ; LIU Chunqiang ; HUANG Yebao
Journal of Preventive Medicine 2024;36(3):198-202
Objective:
To investigate the causal relationship between gut microbiota and constipation using Mendelian randomization (MR) method.
Methods:
Genetic variation data of gut microbiota were obtained from the MiBioGen Consortium database. The genetic variation data of constipation were sourced from the IEU Open GWAS database. A forward MR analysis was performed using the inverse-variance weighted (IVW) method with 2 511 SNPs associated with gut microbiota as instrumental variables, and constipation as study outcome, and a reverse MR analysis was performed with 13 microbiota-associated SNPs as instrumental variables and gut microbiota as study outcome. The heterogeneity was assessed using the Cochran test, reverse causation of SNP were examined using MR Steiger test, and the horizontal pleiotropy was assessed using the MR-PRESSO test and MR-Egger regression. In addition, the robustness of the results was verified with the leave-one-out.
Results:
Forward MR analysis results showed that an increased abundance of genus Coprococcus1 driven by host genetics was associated with a decreased risk of constipation (OR=0.791, 95%CI: 0.709-0.884), and increased abundance of phylum Bacteroidetes driven by host genetics was associated with an increased risk of constipation (OR=1.240, 95%CI: 1.102-1.394). Cochran test detected no heterogeneity (both P>0.05), MR Steiger test was not revealed reverse causation of SNP, and neither the MR-PRESSO test nor the MR-Egger regression revealed horizontal pleiotropy of instrumental variables (all P>0.05), and the leave-one-out method confirmed the robustness of results. Reverse MR analysis showed no association between gut microbiota and constipation (both P>0.05).
Conclusion
Genus Coprococcus1 and phylum Bacteroidetes in the gut microbiota are associated with constipation.
9.Investigation on knowledge, aptitude and perception of protection for iatrogenic pollution in clinical lab personnel and evaluation for effect of health education.
Yan-ping LU ; Qian SHI ; Xiao-jian ZHAO ; Xiao-long HUANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(7):423-424
10.Clinical research of traditional Chinese medicine for the treatment of high myopia with macular hemorrhage
Ming-Fu, GONG ; Zheng, REN ; Qian-Feng, XIAO ; Yan, LIANG ; Xiao-Yun, HUANG
International Eye Science 2015;(7):1263-1265
AlM:To study the treatment effect of traditional Chinese medicine in the treatment of high myopia macular hemorrhage, using Chinese medicine etiology and pathogenesis, syndrome differentiation treatment, and provide the basis for the clinical treatment. METHODS: Eighty patients ( 135 eyes ) with high myopia macular hemorrhage were selected in the hospital from January 2012 to september 2014 as treatment group, and applied traditional Chinese medicine treatment. Forty-five patients (64 eyes) with the same period, as the control group, received routine western medicine treatment. After 1mo treatement, the treatment effect and vision improvement situation of two groups were observed, and after 6mo follow-up, the relapse was observed.RESULTS: The total effective rate of treatment group was 85. 19% (115/135), higher than the control group 78. 13% (50/64) (P<0. 05). The average corrected visual acuity of treatment group was 0. 48±0. 11, higher than the control group 0. 36 ± 0. 09, the difference was statistically significant (P<0. 05). The average diopter and macular bleeding scope of the treatment group were -9. 81±0. 85D and 0. 51 ± 0. 27PD, lower than the control group -10. 76 ± 0. 91D and 0. 78 ± 0. 23PD, the differences were statistically significant ( P < 0. 05 ). The eye ground hemorrhage absorption time of treatment group was 25. 34±2. 28d, less than the control group 29. 72 ± 2. 13d, the difference was statistically significant (P<0. 05). The bleeding again of the control group 7. 81% ( 5/64 ), higher than the treatment group was 5. 19% (7/135), the difference was statistically significant (P<0. 05).CONCLUSlON: Evidence-based treatment of traditional Chinese medicine for high myopia macular hemorrhage has good clinical effect, can shorten the treatment time, and is beneficial to the recovery of postoperative vision, worthy of clinical popularization and application.