1.Study of the relationship between fasting blood glucose and islet ? cell function
Aihong FAN ; Yan CHEN ; Shandong YE
Chinese Journal of Diabetes 1994;0(03):-
411 subjects were divided into six groups according to their FPG levels.And OGTT was carried out.Result showed that along with the FPG increasing, HOMA ?-cell index and ?I30 /?G30 were decreased progressively, and the fasting serum proinsulin level and ratio of proinsulin /insulin were increased markedly.The area under insulin curve decreased gradually when FPG was above 8 mmol/L. In conclusion, FPG is a reflection of islet ? cell function.
2.The chelator BPCBG decorporates uranium and protects against uranium-induced kidney injury in rats
Dan WANG ; Yizhong BAO ; Yuxing HU ; Aihong XU ; Honghong CHEN
Chinese Journal of Radiological Medicine and Protection 2012;32(4):337-341
Objective To explore the dose- and time-responses of BPCBG on the decorporation of uranium and its protective effects for uranium-induced kidney injury in rats. Methods Sprague-Dawley (SD) male rats were randomly divided into 4 -7 groups:normal control group,uranium poisoning group,different doses of BPCBG groups and DTPA-CaNa3 group. Rats in chelating agents-treated groups were either injected intramuscularly with 60,120 and 600 μmol/kg of BPCBG or 120 and 600 μmol/kg of DTPA-CaNa3 immediately after intraperitoneal injection of uranyl acetate dihydrate,or injected with 120 μmol/kg of BPCBG 0.5,2 h before or 0,0.5,1 and 2 h after injection of uranium. Uranium poisoning group rats were injected with normal saline after intraperitoneal injection of uranyl acetate dihydrate,and the normal control group rats were merely injected with normal saline. The uranium content in urine,kidney and femurs were detected 24 h after chelator injections by ICP-MS method.After injecting a dose of 500 μg uranyl acetate dihydrate,rats were injected with 600 μmol/kg of BPCBG or 1200 μmol/kg of DTPA-CaNa3. Histopathological changes in the kidney and serum creatinine and urea nitrogen were examined 48 h after chelator administration.Results Prompt injections of BPCBG resulted in 37% -61% ( t =2.22,4.43,5.80,P < 0.05 ) increase in 24 h-urinary uranium excretion,and significantly decreased the levels of uranium in kidney and bone by 59% -69% (t=3.33,5-59,4-53,P<0.01) and 14% -58% (t =2.15,8.70,9.10,P < 0.05 ) respectively in a dose-dependent manner. BPCRG injection obviously reduced the severity of the uranium-induced histological alterations in the kidney,which was in parallel with the amelioration noted in serum indicators,serum creatinine and urea nitrogen,of uranium nephrotoxicity.Advanced 0.5 h or delayed 0.5 and 1 h administrations of BPCBG were effective in 24 h-urinary uranium excretion ( advanced 0.5 h:t =4.34,delayed 0.5 h:t =3.35,P < 0.05 ),decreasing accumulation of kidney uranium ( t =5.75,7.74,5.87,P < 0.05 ) and accumulation of hone uranium (t =6.43,5.222,2.60,P <0.05),but the efficacy decreased with the interval time between uranium and BPCBG injection. Although DTPA-CaNa3 markedly reduced uranium retention in kidney (120,600 μmol/kg,t =2.28,3.35,P < 0.05 ),its efficacy in uranium removal was significantly lower than that of BPCBG,and it had no protective effects against uranium-induced nephrotoxicity.Conclusions BPCBG can effectively decorporate uranium from rats and protect against uranium-induced kidney injury of rats.
3.High frequency ultrasonic imaging of the dorsal Lisfrancligament in the adults
Peijin CHEN ; Maimaitiming MAYINUER ; Xia HOU ; Aihong ZHANG ; Chunhong LIU
Chinese Journal of Tissue Engineering Research 2016;20(24):3609-3614
BACKGROUND:As a novel noninvasive method, high frequency ultrasound has been used for the detection of skeletal muscle widely. OBJECTIVE:To detect the thickness of the dorsalLisfrancligament between the first (medial) cuneiform (C1) and second metatarsal (M2) using high frequency ultrasound to evaluate the feasibility and clinical application value of high frequency ultrasound for the detection of theLisfrancjoint. METHODS:Both feet of 100 healthy volunteers were included and the thickness of dorsalLisfranc ligament and the distance between C1 and M2wereexamined using high frequency ultrasound. RESULTS AND CONCLUSION:The display rate of high frequency ultrasound for the dorsalLisfranc ligament in the 100 healthy volunteers was 100%. There was no significant difference in the thickness of the dorsalLisfrancligament between both feet or sexes in adults(P> 0.05); as did the distance between C1 and M2 (P> 0.05). These findings suggest that visual dorsalLisfrancligament is detected by high frequency ultrasound. The measurement of the distance between C1 and M2by high frequency ultrasound may be a feasible, noninvasive, low-cost, and early diagnostic method forLisfrancinjuries.
4.Early Diagnosis of Lung Carcinoma:A Correlative study of P53?P16 Protein Expression to CT Appearance in Lung Carcinoma
Aihong CAO ; Xu WANG ; Shumin CHEN ; Ruimin WANG ; Liang LIU
Journal of Practical Radiology 2001;0(08):-
Objective The main purpose of the present study was to reveal the correlation among the CT and p53?p16 protein of non-small cell lung carcinoma(NSCLC).Methods The expression of p53?p16 protein in 52 cases by SABC immunohistochemical technique and the relationship to CT appearance were analysed.Results (1)The experssion of p53 protein of NSCLC was significantly higher than that of their adjacent tissues and their normal lung tissues(?
5.Experimental study of an endothelial progenitor cell coated stent in transjugular intrahepatic portosystemic shunt
Hongjian SHI ; Caojun TENG ; Aihong CAO ; Jun CHEN ; Gang DENG
Chinese Journal of Radiology 2009;43(11):1201-1206
Objective To evaluate the efficacy of a self-expandable metal stent coated with autologous endothelial progenitor cells(EPCs)for prevention of restenosis in transjugular intrahepatic portosystemic shunt(TIPS)in a swiue model.Methods EPCs were coated on the metal stents using fibrin gel before TIPS procedure.TIPS was performed in 15 young adult pigs,using an autologous EPC-seeded stent(treatment group,n=9)or a conventional bare metal stent(control group,n=6).All pigs were sacrificed at 2 weeks after TIPS procedure.Portography was performed immediately before the euthanasia.Gross and microscopic pathological exams and immunohistochemical exams of the TIPS track specimens were performed.Fisher test and t test were used to analyse the data.Results TIPS was performed successfully in all the 15 swine.On day 14 of follow-up,direct portography and necropsy demonstrated that 5 shunts remained patent,2 shunts stenosed,and the remaining 2 shunts occluded in the treatment group(n=9);while 5 shunts were occluded and one shunt was stenotic in the control group(n=6).The patency rate was 56%vs 0(P=0.03)between the two groups.Histological analyses showed a greater pseudo-intimal hyperplasia in the TIPS track of the control group than that of the treatment group(pseudointimal thickness at hepatic vein,hepatic parenchyma and portal vein site was(1.2±0.4),(1.3±0.5),(1.5±0.4)mmvs(1.0±0.6),(0.9±0.5),(1.0±0.4)mm respectively(P<0.05).Conclusion The EPC-coated metal stent is feasibly constructed in vitro and improves the patency in TIPS in a porcine model.
6.Effect of rosiglitazone on expression and excretion of connective tissue growth factor in renal tissue and urinary of diabetic rats
Wei CHEN ; Shandong YE ; Yingxin WANG ; Wen HU ; Aihong FAN ; Yan CHEN ; Guangwei YANG ; Xiucai LI
Chinese Pharmacological Bulletin 2003;0(09):-
Aim To study the effect of rosiglitazone(RGZ)on expression and excretion of connective tissue growth factor(CTGF) in renal tissue and urinary of diabetic nephropathy rats.Methods Three groups of rats were studied:normal control group(n=8),STZ-induced diabetic model group(n=8),diabetes RGZ-treatment group(n=8).Urinary CTGF was measured at the 1 st,4 th,6 th and 8 th week,as well as the expressions of CTGF protein(by histochemical staining)at the 8 th week by ELISA.Results The urinary excretion rates of CTGF at 4 th、6 th、8 th weeks and the expressions of CTGF protein in renal cortex at 8th weeks significantly increased in STZ-induced model group compared with those in normal group(P
7.The preliminary study on the effects of preoperative depression condition in patients with breast cancer on the efficacy of intravenous analgesia with dezocine and the serum level of 5 hydroxytryptamine
Chen LING ; Xudong HU ; Wu ZHANG ; Xingqing LIU ; Aihong DENG ; Shaoxiong ZHOU
Journal of Chinese Physician 2017;19(7):999-1001,1006
Objective To explore preliminarily the effects of preoperative depression condition in patients with breast cancer on the efficacy of intravenous analgesia with dezocine and the serum level of 5 hydroxytryptamine.Methods Sixty patients with breast cancer were assessed with Hamilton depression scale (HAMD).The total patients were divided into three groups according to HAMD scores,including normal group (26 cases),suspicious group (22 cases),and depression group (12 cases).The postoperative analgesia was facilitated with patients intravenous control analgesia with dezocine and the postoperative pain was assessed by visual analogue scale (VAS) at 2 hours,12 hours,and 24 hours.Yhe serum concentration of 5 hydroxytryptamine was measured by enzyme-linked immunosorbent assays before anesthesia,2 hours after surgery beginning,and 24 hours after surgery.Results The postoperative VAS at 12 hours and 24 hours in suspicious group and in depression group were higher than those in normal group (P < 0.05).There was no statistical difference between depression and suspicious groups (P > 0.05).The serum concentrations of 5 hydroxytryptamine in three groups increased obviously at 2 hours after surgery beginning (P<0.05),and then decreased at 24 hours postoperation.The serum concentrations of 5 hydroxytryptamine in suspicious group and depression group at three measurement point were significantly lower than those in normal group (P <0.05).The serum concentrations of 5 hydroxytryptamine in depression group at three measurement point were significantly lower than those in suspicious group (P < 0.05).Conclusions Under this preliminary study condition,the preoperative severity of the depression in patients with breast cancer may affect the analgesia effect of patients intravenous control analgesia with dezocine and maybe have some relationships with serum levels of 5 hydroxytryptamine.
8.Effect and mechanism of heat shock protein inhibitors on cell proliferation and apoptosis in human nasopharyngeal carcinoma
Qiuxia PANG ; Jingzi HE ; Jumei ZHAO ; Jinghong XU ; Aihong WANG ; Meini CHEN ; Tao LIU
Chinese Archives of Otolaryngology-Head and Neck Surgery 2017;24(8):385-389
OBJECTIVE To study the effect of different concentrations of 17-AAG and EGCG monotherapy or in combination on the induced apoptosis in human nasopharyngeal carcinoma, and to explore new molecular targets for the treatment of nasopharyngeal carcinoma. METHODS MTT colorimetric method and fluorescent staining were used to detect the change of CNE proliferation inhibition rate and cell morphology. And furthermore, the expression level of Bcl-2, Bax, Caspase-3 were detected by RT-PCR. RESULTS 1. 17-AAG or EGCG alone had inhibitory effect on the human nasopharyngeal carcinoma CNE cells at 24 h, 48h and 72 h, and it was related with time and dose(P<0.01). The inhibition effect of combination of 17-AAG and EGCG was significantly increased,which was time and dose dependent(P<0.01). 2. RT-PCR was used to detect the mRNA expression level of Bcl-2, Bax and caspase-3. The level of Caspase-3 and Bax mRNA expression after treated by 17-AAG and EGCG was significantly higher, and the level of bcl-2 mRNA expression was lower than that after treated by 17-AAG or EGCG alone. CONCLUSION Our investigation implied that 17-AAG and EGCG in combination can effectively inhibit the proliferation of human nasopharyngeal carcinoma CNE cells. The involved mechanisms may be associated with the upregulation of Bax and Caspase-3 expression.
9.Effect of the chelator BPCBG on the decorporation of uranium in vivo and uranium-induced damage of human renal tubular epithelial cells in vitro.
Yizhong BAO ; Dan WANG ; Yuxing HU ; Aihong XU ; Meizhen SUN ; Honghong CHEN
Acta Pharmaceutica Sinica 2011;46(11):1308-13
This study is to assess the efficacy of BPCBG on the decorporation of uranium (VI) and protecting human renal proximal tubular epithelial cells (HK-2) against uranium-induced damage. BPCBG at different doses was injected intramuscularly to male SD rats immediately after a single intraperitoneal injection of UO2(CH3COO)2. Twenty-four hours later uranium contents in urine, kidneys and femurs were measured by ICP-MS. After HK-2 cells were exposed to UO2(CH3COO)2 immediately or for 24 h followed by BPCBG treatment at different doses for another 24 or 48 h, the uranium contents in HK-2 cells were measured by ICP-MS, the cell survival was assayed by cell counting kit-8 assay, formation of micronuclei was determined by the cytokinesis-block (CB) micronucleus assay and the production of intracellular reactive oxygen species (ROS) was detected by 2',7'-dichlorofluorescin diacetate (DCFH-DA) oxidation. DTPA-CaNa3 was used as control. It was found that BPCBG at dosages of 60, 120, and 600 micromol kg(-1) resulted in 37%-61% increase in 24 h-urinary uranium excretion, and significantly decreased the amount of uranium retention in kidney and bone to 41%-31% and 86%-42% of uranium-treated group, respectively. After HK-2 cells that had been pre-treated with UO2(CH3COO)2 for 24 h were treated with the chelators for another 24 h, 55%-60% of the intracellular uranium was removed by 10-250 micromol L(-1) of BPCBG. Treatment of uranium-treated HK-2 cells with BPCBG significantly enhanced the cell survival, decreased the formation of micronuclei and inhibited the production of intracellular ROS. Although DTPA-CaNa3 markedly reduced the uranium retention in kidney of rats and HK-2 cells, its efficacy of uranium removal from body was significantly lower than that of BPCBG and it could not protect uranium-induced cell damage. It can be concluded that BPCBG effectively decorporated the uranium from UO2(CH3COO)2-treated rats and HK-2 cells, which was better than DTPA-CaNa3. It could also scavenge the uranium-induced intracellular ROS and protect against the uranium-induced cell damage. BPCBG is worth further investigation.
10.Impact of the new CKD-EPI equation on the staging of patients with chronic kidney disease based on abbreviated MDRD equation
Jiangtao LI ; Chen XU ; Chunli CUI ; Huifang WANG ; Yitai WU ; Aihong YUAN ; Xiaofeng JIANG ; Jun MA
Chinese Journal of Nephrology 2011;27(5):346-350
Objective To compare the estimated CFR (eCFR) values using the new chronic kidney disease epidemiology collaboration (CKD-EPI) equation with those from the abbreviated MDRD equation in a Chinese cohort with chronic kidney disease (CKD) and to analyze the impact of the new CKD-EPI equation on the staging of CKD. Methods A total of 450 Chinese patients (239 female and 211 male) with CKD were enrolled. eCFRs obtained by the CKD-EPI equation and the abbreviated MDRD equation were compared with the Bland and Altaian method. The agreement between two equations in CKD staging was assessed by Kappa test. Results Mean eGFR was 2.4 ml ·(min)-1 ·( 1.73 m2)-1 higher with the CKD-EPI equation as compared to the abbreviated MDRD equation. The percentage of CKD staging concordance between equations for stage 1, 2, 3A, 3B, 4, and 5 was 97.10% (n=67), 80.77% (n=105), 6 0.86% (n= 48), 87.69%(n=57), 90.38% (n=47) and 98.18% (n=54) respectively. Kappa index was 0.913 (95%C/: 0.881-0.945). The CKD-EPI equation reclassified 19.23% (n=25) and 39.24% (n=31) of patients with CKD stage 2 and 3A,upward to a higher eCFR category. Conclusions The new CKD-EPI equation reclassifies a number of patients to higher CKD stages, especially those classified as CKD stage 2 or 3A by the abbreviated MDRD equation.