1.Effects of Tangshentang on the expression of LOX-1 and secretion of extracellular matrix induced by ox-LDL in rat masengial cells
Yueguang DU ; Kefu CHAI ; Tianxi ZHAO
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(03):-
Objective: To investigate the effect of Tangshentang on the expression of LOX-1 and secretion of TGF-?1,FN,ColⅣ in cultured rat masengial cells(RMCs) induced by ox-LDL and to explore its molecular mechanism of preventing and treating diabetic nephropathy.Methods: The cultured RMCs were divided into control group,ox-LDL group,Tangshentang group(respectively high,medium and low group)and rosiglitazone group.The mRNA expression was tested by RT-PCR.Synthesis of TGF-?1,FN,ColⅣ in cultured RMCs were determined by ELISA methods.Results: Tangshentang drug serum significantly attenuated up-regulation of TGF-?1,LOX-1 mRNA expression and synthesis of TGF-?1,FN,ColⅣ in a dose-dependent manner,with the peak at middle concentration,in RMCs stimulated by ox-LDL(50?g/ml).Conclusion: Tangshentang drug serum may protect kidney from injury by ox-LDL via the decreased expression of LOX-1 to reduce the uptake of ox-LDL and subsequently inhibiting TGF-?1 secretion,as well as the deposition of FN,ColⅣ.
2.Intermittent Catheterization by Relative Safe Bladder Capacity to Treat Vesical-ureteral Reflux
Tiejun LIU ; Kefu SHA ; Mengjie ZHAO ; Juzhong GAO
Chinese Journal of Rehabilitation Theory and Practice 2010;16(8):792-793
ObjectiveTo investigate the effects and indication of intermittent catheterization(IC) by relative safe bladder capacity(RSBC) to treat vesical-ureteral reflux(VUR).MethodsThere were 23 male complete SCI patients, aged between 7~45 years, including 15 patients without vesicao-ureteral reflux injuried 1~3 months as control group, 3 patients in mild group affected only ureter, and 5 patients in severe group affected not only ureter but also the pelvis. All the patients were taken intermittent catheterrization according to their own RSBC companied with supersonic device. The times of IC per day is that the average total urine volume one day was divided by RSBC. The observation time is over 2 years. During the oberservation some medicine was used to enlarge some patients bladder capacity.ResultsThere were no reflux in the control group; the reflux in the mild group improved a lot, some even disappeared, and there were no change in the severe group.ConclusionIC by RSBC is effective to prevent and cure vesical-ureteral reflux in some SCI patients.
3.Application of Boari bladder muscle flap surgery in nephron sparing surgery for patients with middle and lower ureteral carcinoma
Kefu SHA ; Ying WANG ; Tiejun LIU ; Mingjun ZHAO
Journal of Regional Anatomy and Operative Surgery 2016;25(8):606-608,609
Objective To observe the effect of Boari bladder muscle flap surgery in nephron sparing surgery for patients with middle and lower ureteral carcinoma. Methods Totally 80 patients with middle and lower ureteral carcinoma underwent surgery in our hospital from March 2009 to March 2012 were selected and divided into the control group and the observation group,with 40 cases in each group. Patients of the control group were treated with ureteral carcinoma radical prostatectomy while patients of the observation group were treated with Boari bladder muscle flap surgery,and all of them were followed up for 3 years after operation. Observed the renal function,renal tumor markers and the level of inflammatory symptoms of the 2 groups before the operation and 3 months after the operation,and compared the long-term progno-sis of the 2 groups. Results There was no significant difference between the 2 groups in renal function index before operation. The level of BUN,Scr,blood urea and serum uric acid index in the 2 groups were all increased compared with those before operation,but the increase of the control group was significantly higher with statistically significant differences (P<0. 05). The tumor markers CA19-9, Survivin and in-flammatory marks WBC,NEC%,IL-6,hs-CRP had no significant difference before operation,and all the level of the 2 groups were decreased after operation,but there was still no difference between the 2 groups (P>0. 05). The survival rate 1 year,2 years and 3 years after operation also had no significant difference between the 2 groups (P>0. 05). Conclusion The use of Boari bladder muscle flap surgery in nephron sparing surgery for patients with middle and lower ureteral carcinoma can effectively maintain the renal function of patients without affecting the radical and long-term prognosis.
4.Correlation Between Cutaneous Adverse Reactions Caused by Aromatic Antiepileptic Drugs and Human Leukocyte Antigen Gene Polymorphism
Jiping HUO ; Jingchen TIAN ; Zhigang ZHAO ; Shenghui MEI ; Xingang LI ; Kefu YU
Herald of Medicine 2018;37(2):206-211
Aromatic antiepileptic drugs such as carbamazepine are the first-line treatment for epilepsy. The adverse reactions have greatly limited their clinical application. The occurrence rate of severe skin adverse reactions such as Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) is low,but they are often fatal.Human leukocyte antigen (HLA) gene polymorphisms are reported to be related with skin adverse reactions caused by aromatic antiepileptic drugs,but the exact mechanism is unclear.This article will perform a review about the correlation between skin adverse reactions caused by aromatic antiepileptic drugs and HLA gene polymorphisms published in recent years,in order to provide theoretical basis for further study of HLA susceptibility genes in Chinese Han population,and provide a reference for achieving individualized treatment of epilepsy.
5.Influence of humidex on incidence of bacillary dysentery in Hefei: a time-series study
Heng ZHANG ; Kefu ZHAO ; Ruixin HE ; Desheng ZHAO ; Mingyu XIE ; Shusi WANG ; Lijun BAI ; Qiang CHENG ; Yanwu ZHANG ; Hong SU
Chinese Journal of Epidemiology 2017;38(11):1523-1527
Objective To investigate the effect of humidex combined with mean temperature and relative humidity on the incidence of bacillary dysentery in Hefei. Methods Daily counts of bacillary dysentery cases and weather data in Hefei were collected from January 1, 2006 to December 31, 2013. Then, the humidex was calculated from temperature and relative humidity. A Poisson generalized linear regression combined with distributed lag non-linear model was applied to analyze the relationship between humidex and the incidence of bacillary dysentery, after adjusting for long-term and seasonal trends, day of week and other weather confounders. Stratified analyses by gender, age and address were also conducted. Results The risk of bacillary dysentery increased with the rise of humidex. The adverse effect of high humidex (90 percentile of humidex) appeared in 2- days lag and it was the largest at 4-days lag (RR=1.063, 95%CI:1.037-1.090). Subgroup analyses indicated that all groups were affected by high humidex at lag 2-5 days. Conclusion High humidex could significantly increase the risk of bacillary dysentery, and the lagged effects were observed.
6.Correlation analysis of epidemiological characteristics and changes of influenza subtypes in Hefei City in 2015-2021
Zhenwu LIU ; Lei ZHANG ; Xuxiang LIU ; Jinju WU ; Kefu ZHAO ; Wenjin WANG
Journal of Public Health and Preventive Medicine 2022;33(4):20-23
Objective To analyze the correlation between detection of influenza pathogenic subtypes and epidemic situation in Hefei City during the surveillance years of 2015-2021, and to provide references for developing influenza prevention and control strategies. Methods The relevant data of influenza-like illness (ILI) surveillance, influenza etiology, and outbreak/cluster outbreaks reported from influenza surveillance sentinel hospitals in Hefei City from 2015 to 2021 in the China Influenza Surveillance Information System were analyzed. The statistical analysis was carried out. Results A total of 3 332 553 outpatient and emergency visits in 2 sentinel hospitals were reported in Hefei City from 2015 to 2021, of which 139,082 were ILI cases, accounting for 4.17%. The monthly proportion ranged from 1.60% to 7.15%. A total of 14 663 ILI specimens were submitted for detection, the submission rate was 10.54%, and the positive rate of influenza virus detection was 11.30%. There was no correlation between the proportion of monthly influenza like cases and the detection rate (rs=0.176, P=0.107). The composition ratio of each subtype of influenza virus varied greatly, showing diversified seasonality, and the epidemic strains changed constantly. The Victoria subtype (BV subtype) was dominant (40.21%). There was a moderate correlation between the positive rate of ILI in sentinel hospitals and the number of outbreaks per month (rs=0.696, P=0.000). There was a strong correlation between the monthly number of outbreaks and the detection rate (rss=0.696, P=0.000). There was a strong correlation between influenza A virus H3 subtype and BV subtype (rs -H3=0.686, P=0.030; rs -BV=0.632, P=0.000). There was a moderate correlation between the new A1 subtype and B Yamagata subtype (rs -new A H1=0.481, P=0.000 0; rs -BY=0.515, P=0.000). Conclusion There are two epidemic peaks in spring and winter in Hefei. Influenza subtypes are diverse. The results of ILI etiology can predict the outbreaks of different subtypes of influenza. Prediction and surveillance should be used for influenza control and outbreak management in a timely manner.
7. Pinocembrin Promotes OPC Differentiation and Remyelination via the mTOR Signaling Pathway
Qi SHAO ; Ming ZHAO ; Wenwen PEI ; Yingyan PU ; Mingdong LIU ; Weili LIU ; Zhongwang YU ; Kefu CHEN ; Hong LIU ; Li CAO ; Ming ZHAO ; Benqiang DENG ; Ming ZHAO ; Kefu CHEN
Neuroscience Bulletin 2021;37(9):1314-1324
The exacerbation of progressive multiple sclerosis (MS) is closely associated with obstruction of the differentiation of oligodendrocyte progenitor cells (OPCs). To discover novel therapeutic compounds for enhancing remyelination by endogenous OPCs, we screened for myelin basic protein expression using cultured rat OPCs and a library of small-molecule compounds. One of the most effective drugs was pinocembrin, which remarkably promoted OPC differentiation and maturation without affecting cell proliferation and survival. Based on these in vitro effects, we further assessed the therapeutic effects of pinocembrin in animal models of demyelinating diseases. We demonstrated that pinocembrin significantly ameliorated the progression of experimental autoimmune encephalomyelitis (EAE) and enhanced the repair of demyelination in lysolectin-induced lesions. Further studies indicated that pinocembrin increased the phosphorylation level of mammalian target of rapamycin (mTOR). Taken together, our results demonstrated that pinocembrin promotes OPC differentiation and remyelination through the phosphorylated mTOR pathway, and suggest a novel therapeutic prospect for this natural flavonoid product in treating demyelinating diseases.
8.Pinocembrin Promotes OPC Differentiation and Remyelination via the mTOR Signaling Pathway.
Qi SHAO ; Ming ZHAO ; Wenwen PEI ; Yingyan PU ; Mingdong LIU ; Weili LIU ; Zhongwang YU ; Kefu CHEN ; Hong LIU ; Benqiang DENG ; Li CAO
Neuroscience Bulletin 2021;37(9):1314-1324
The exacerbation of progressive multiple sclerosis (MS) is closely associated with obstruction of the differentiation of oligodendrocyte progenitor cells (OPCs). To discover novel therapeutic compounds for enhancing remyelination by endogenous OPCs, we screened for myelin basic protein expression using cultured rat OPCs and a library of small-molecule compounds. One of the most effective drugs was pinocembrin, which remarkably promoted OPC differentiation and maturation without affecting cell proliferation and survival. Based on these in vitro effects, we further assessed the therapeutic effects of pinocembrin in animal models of demyelinating diseases. We demonstrated that pinocembrin significantly ameliorated the progression of experimental autoimmune encephalomyelitis (EAE) and enhanced the repair of demyelination in lysolectin-induced lesions. Further studies indicated that pinocembrin increased the phosphorylation level of mammalian target of rapamycin (mTOR). Taken together, our results demonstrated that pinocembrin promotes OPC differentiation and remyelination through the phosphorylated mTOR pathway, and suggest a novel therapeutic prospect for this natural flavonoid product in treating demyelinating diseases.
Animals
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Cell Differentiation
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Flavanones
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Mice
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Mice, Inbred C57BL
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Myelin Sheath/metabolism*
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Oligodendroglia/metabolism*
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Rats
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Remyelination
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Signal Transduction
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TOR Serine-Threonine Kinases/metabolism*