1.Protective effects of mycophenolate mofetil on kidneys of type 2 diabetic rats
Tanghong YU ; Ruhan JIA ; Guohua DING ; Yan XIONG ; Jian CHEN ;
Chinese Journal of Clinical Pharmacology and Therapeutics 2004;0(10):-
AIM: To evaluate the protective effects of mycophenolate mofetil on the kidneys of type 2 diabetic rats and discover their mechanisms. METHODS: Wistar rats were divided into three groups, such as normal control rats, diabetic rats, and diabetic rats in the treatment with mycophenolate mofetil (MMF, 15 mg?kg -1 ?d -1 ). Thirteen weeks later, urinary albumin excretory rate (UAE), creatine clearance (Ccr), blood glucose, blood insulin and blood lipid were measured, and kidney pathology was observed. Inmmunohistochemistry was used to analyze the expression of CTGF, ColI and ColⅢ. RESULTS: Mycophenolate mofetil decreased UAE, Ccr and reduced glomerular volume. The expression of CTGF and deposition of ECM decreased after diabetic rats received mycophenolate mofetil. CONCLUSION: Mycophenolate mofetil can protect the kidney of diabetic rats. Its mechanism may be related to the decrease of CTGF expression and extracellular matrix deposition in renal tissue.
2.Preliminary Study of Renal Perfusion Imaging by Computed Tomography in Patients of Essential Hypertension With Target Organ Damage
Hong YU ; Junqing XU ; Wenjing DING ; Chongfu JIA
Chinese Circulation Journal 2015;(11):1063-1066
Objective: To assess the renal cortical perfusion parameters by the imaging of computed tomography (CT) in patients of essential hypertension (EH) with target organ damage.
Methods: A total of 90 subjects with the entire information including 59 EH patients were studied. The EH patients were divided into 2 groups: EH + target organ damage group,n=30 and EH without target organ damage group,n=29. In addition, there was a Control group,n=31 healthy volunteers. All subjects received 128-slice dual-source CT renal perfusion scanning, the quantitative perfusion of renal cortex blood lfow (BF), blood volume (BV), time to peak (TTP) and the mean transit time (MTT) were examined and compared among different groups.
Results: There were 90/97 (92.8%) participants eligible for perfusion analysis. Compared to Control group, EH without target organ damage group had the similar parameters of BF, BV, MTT and TTP,P>0.05. While EH + target organ damage group had decreased BF (214.6 ± 36.1) ml/(min?100 ml ) than Control group (262.1 ± 26.6) ml/(min?100 ml ),P<0.01, and BV, TTP, MTT were similar to Control group,P>0.05. Compared to EH without target organ damage group, the EH + target organ damage group presented decreased BF (214.6 ±3 6.1) ml/(min?100 ml ) vs (268.9 ± 33.1) ml/(min?100 ml ), P<0.01 and prolonged MTT, TTP,P< 0.05.
Conclusion: CT imaging may evaluate the renal cortical perfusion changes, and especially BF which can relfect the renal perfusion more sensitively than other parameters in EH + target organ damage patients.
5.Filtration of active fractions with hemostasis effect from platycladi cacumen carbonisatum.
Chen LIU ; Jia LIU ; Chuan-Zhu ZHENG ; Li ZHANG ; An-Wei DING ; Bin YU
China Journal of Chinese Materia Medica 2014;39(16):3152-3156
OBJECTIVETo discuss the hemostasis of the different polarities of Platycladi Cacumen Carbonisatum (PCC) on the blood heat and hemorrhage syndrome rat model induced by dry yeast.
METHODThe SD rats were divided into seven groups. Yunnan Baiyao was taken as the positive control drug. The rats in the control group and model group were fed with CMC-Na for 7 days, and the rats in other groups were fed with corresponding drugs simultaneously. On day 7, the blood heat and hemorrhage syndrome rat model was established. Indexes including the whole blood viscosity, plasma viscosity, thrombin time (TT), activated partial thromboplastin time (APTT), prothrombin time (PT), fibrinogen content (FIB), red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT), blood platelet count (PLT), thrombocytocrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW) and the rate of platelet aggregation induced by ADP were detected. Additionally, the pathological examinations of lungs among each group were compared.
RESULTCompared with the control group, the RBC, HGB and HCT of rats in the model group increased significantly, with distinct increase in high, middle and low whole blood viscosity and plasma viscosity of rats in the model group; TT and APTT were notably prolonged, while PT was notably shortened, with significant increase in FIB content; PLT, PCT, MPV and PDW remarkably increased; Additionally, the rate of platelet aggregation induced by ADP significantly decreased. After ig administration of the ethyl acetate extract of PCC, the low whole blood viscosity and plasma viscosity remarkably decreased; TT and APTT were significantly shortened, with notable reduction in PDW and in FIB content Additionally, the rate of platelet aggregation induced by ADP significantly increased. The injury of lungs was also improved in ethyl acetate extract group. The rate of platelet aggregation induced by ADP of n-butanol extract group notablly increased. Plasma viscosity of water extract group remarkably decreased, with TT being significantly shortened. But the effects of n-butanol extract or water extract were weaker than that of ethyl acetate extract. And the effect of petroleum ether extract was the weakest.
CONCLUSIONEthyl acetate extract is the active part of PCC, showing the effect of hemostasis by reducing the low whole blood and plasma viscosity, improving coagulation function mainly by acting on the endogenous coagulation, and ameliorating the function of platelet aggregation.
Animals ; Blood Coagulation ; drug effects ; Blood Viscosity ; drug effects ; Cupressaceae ; chemistry ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Filtration ; Hemostatics ; isolation & purification ; pharmacology ; Male ; Platelet Aggregation ; drug effects ; Rats ; Rats, Sprague-Dawley ; Thrombin Time
6.Protective effect of rosiglitazone on liver injury in rats with severe acute pancreatitis
Xiaoyan CHEN ; Weixing WANG ; Youming DING ; Tao YIN ; Zhoujun CUI ; Jia YU
Chinese Journal of Emergency Medicine 2010;19(8):847-850
Objective To explore the therapeutic effects of peroxisome proliferator activating receptor γagonist-rosiglitazone on HMGB1 expression in liver tissue of rats with SAP. Method A hundred and twenty Wistar rats were randomly (random number) divided into the sham operation group(SO group, n = 20) ,SAP group ( n=80) and ROSI treatment group (n =20). SAP group were randomly further divided into the 3 h, 6h, 12 h and 24h subgroups with 20 rats in each group. SAP model was made by retrograde injection of 5 % sodium deoxycholate into the biliopancreatic duct. The serum amylase, AST and ALT, and pathological scores of pancreas and liver tissue were observed. The expression of NF-κB mRNA and the level of HMGB1 protein were investigated respectively by Reverse transcription polymerase chain reaction (RT-PCR) and Westem blot method, respectively. SPSS 16.0software was used to make one-way ANOVA, q -test and correlation analysis. Results Serum amylase, AST and ALT, and pathological scores of pancreas and liver tissue, and the level of HMGB1 protein were markedly increased in each subgroup of SAP compared with SO group ( P < 0.01). The level of HMGB1 protein was positively correlated with the changes of AST, ALT and pathological scores of pancreas and liver tissue. Correlation was not found between HMGB1 and amylase. Treatment with ROSI could significantly reduce the expression of NF-κB mR-NA and the levels of HMGB1 protein, serum AMY, AST and ALT, and pathological scores of pancreas and liver tissue in comparison with 24 h subgroup of SAP (P <0.01). Conclusions As a late-acting mediator of inflammation, HMGB1 was involved in the pathophysiological process of SAP-related liver injury. ROSI can reduce the liver injury by inhibition of the expression of the HMGB1.
7.Changes of urodynamics in female patients with diabetic cystopathy
Zhiqing DING ; Yu QIAN ; He JIANG ; Yang JIANG ; Wei JIA ; Dongwei GONG
Chinese Journal of General Practitioners 2014;(5):374-376
Objective To evaluate the changes of urodynamics in female patients with diabetic cystopathy.Methods Fifty six female patients with diabetic cystopathy were enrolled in the study , including 31 cases with diabetic course <15 years ( groupⅠ) and 25 cases with diabetic course ≥15 years ( group Ⅱ) .Urodynamic examination was performed in all patients and the urodynamic parameters were compared between two groups.Results The average residual urine volume , the volume of first bladder sensation and the max bladder capacity in groups ⅠandⅡwere (35 ±16)ml and (65 ±24) ml,(220 ± 76)ml and (330 ±88) ml, (380 ±92) ml and (580 ±122) ml, respectively; 3 out 31 and 16 out of 25 patients in groups Ⅰ and Ⅱ showed low compliance .The above indexes between two groups were statistically significant ( P<0.01).Conclusion Urodynamics can indicate the severity of functional damage of urinary bladder in patients with diabetic cystopathy .
8.Longitudinal arch stress distribution of the foot following plantar ligament injury
Yunfeng YANG ; Guangrong YU ; Jiaqian ZHOU ; Yanxi CHEN ; Feng YUAN ; Yongwei JIA ; Wenxin NIU ; Zuquan DING
Chinese Journal of Trauma 2008;24(5):327-330
Objective To measure stress distribution of the main bone architecture of the normal adult cadaveric foot and discuss the effect of plantar ligament injury on stress distribution. Methods Seven fresh adult cadaveric feet were used and 10 strain gauges attached to the bones of the longitudinal foot arch,including the calcaneus,navicular,medial cuneiform,1-5 metatarsal trunk,the distal part of the tibia and fibular,respectively.After the loading Was added to 700 N by almighty test machine,resistance strainmeter was used to measure surface strain of these bones.The results were processed statistically. Results The strain was varied based on different bone segments attached and increased with loading.Tensile force was always found at the medial part of the navicular,the distal part of the tibia and fibular,while the others showed compression all the time.Peak strain was found at calcaneus.followed by the second and third metatarsal.Strain on the surface of the bone segments changed greatly with different ligament injury(P<0.05).Conclusion The bone surface stress of the longitudinal foot arch changes significantly when the plantar ligament is injured.
9.Measurement of the mRNA level of Polo-like kinase 1 in bronchoscopic bioptic specimens by realtime quantitative PCR
Ke-Jing YING ; Fang-Chun SHAO ; Bi-Yun YU ; Jin-Min WU ; Jia-Yi DING ;
Chinese Journal of Laboratory Medicine 2003;0(09):-
0.05)and the TNM staging (P=0.55).A mild elevated compared other pathological classification was found in small cell lung cancer (0.191?0.275).Conclusions The results showed that RFQ-PCR was suitable for measurement of the mRNA level of PLKI in bronchoscopic bioptic specimens.This study suggest elevated expression of PLK1 might play a important role in development of lung cancer,so that PLK1 might be a potential tumor marker for Lung cancers.Advanced studies will be needed to clarify that PLKI mRNA level do not relate to TNM staging and pathological classification.
10.Optimism and suicide risk:self-esteem mediation role and life events adjustment role
Hongsu YU ; Jiubo ZHAO ; Xiaoyuan ZHANG ; Mengjng WU ; Siyuan DING ; Ying JIA ; Shaofei XU
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(3):255-258
Objective To explore the mediating role of self-esteem in optimism and suicidal risks,and the moderate effect of life events in optimism,suicidal risk and self-esteem.Methods 1 750 college students were surveyed with the life orientation test-revised (LOT-R),the suicidal behaviors questionnaire-revised (SBQ-R),rosenberg self-esteem scale(SES) and adolescent self-rating life events check list (ASLEC).Results The total scores of SBQ-R,LOT-R,SES and ASLEC of college students were (4.78±2.10),(23.17±3.22),(29.58±4.43)and (36.54±21.73).Optimism scores were negatively correlated with suicidal risk scores(r=-0.23,P<0.01),optimism scores were positively correlated with self-esteem (r=0.50,P<0.01).Scores of self-esteem scales were negatively correlated with suicidal risk scores(r=-0.35,P<0.01).A structure equation model consists of optimism,self-esteem,suicidal risk and it had a better degree of fitting (the path form optimism to suicidal risk were r =-0.05,P<0.05,RMSEA =0.05,GFI =0.90,NFI =0.92,CFI =0.93).The relationship between optimism and suicide risk were mediated by self-esteem(P<0.01),which accounted for 76%of the total effects.The life events' moderating effects between self-esteem and suicide risk were significant(P<0.01).Conclusion Self-esteem has a significant correlation with optimism and suicidal behaviors,self-esteem plays an intermediary role between optimism and suicidal behaviors,and life events play an regulation role between self-esteem and suicidal behaviors.