1.Clinical features of acute myocardial infarction in the CAPD patients:a review of 39 cases
Siming LIU ; Rengao YE ; Weicheng PENG
Chinese Journal of Practical Internal Medicine 2001;0(05):-
ObjectiveTo investigate the clinical features of acute myocardial infarction in CAPD patients.MethodsCompare the clinical and laboratory data of 39 patients with CAPD and AMI for the first time (PD group),including clinical symptoms,signs,electrocardiogram changes,myocardial enzyme changes and in hospital mortality,with those of 50 patients without renal insufficient but with AMI for the first time (C group).Diagnosis of AMI was made in hospital.ResultsCompared to C group, the symptoms presented at first in PD group were more atypical and the patients went to see doctor more lately after AMI.Atypical electrocardiogram changes were more in PD group than in C group (61.5% vs 26.0%,P
2.Application of Biomonitoring in Water Pollution
Weicheng LIU ; Lezhou SHAN ; Qilang XIE
Journal of Environment and Health 1992;0(05):-
Biological monitoring is one of methods of water environment monitoring. By using the reaction of biological individual,population and community to environmental pollution,biomonitoring can expound the pollution state,provide monitoring data for the environmental quality assessment. The sensitivity,bio-concentration,long-term and comprehensive characteristics are advantages of biomonitoring. This paper summarized the methods of the biomonitoring used in practise,including biotic index,toxicity test,polyurethane foam unit,simultaneous determination,ecotoxicogenomics and involved single cell algae,protozoana,benthic organisms,amphibian. The shortages of the monitoring method also exist,for example,the regional limitation.
3.Association of ACE gene polymorphisms with the carotid intima-media thickness in type 2 diabetes
Weikun CHEN ; Weicheng PENG ; Yuhua LIU
Chinese Journal of Practical Internal Medicine 2006;0(16):-
Objective To investigate the relationship between angiotensin 1-converting enzyme(ACE)inserting/defaulting(I/D)gene polymorphisms and the carotid intima-media thickness(CCA-IMT)in patients with type 2 diabetes(T2DM).Methods The polymorphisms of ACE(I/D)was determined by polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP)method and the CCA-IMT was assessed using non-invasive high resolution B-mode ultrasonography in 120 T2DM in Han's population of Dongguan city.The data were analyzed by Logistic regression to explore the independent and significant risk factors for CCA-IMT increase in type 2 diabetic patients.Results The DD genotype were significantly more common in diabetic patients with CCA-IMT increase than in those without it(F=10.164,P=0.006);Logistic regression analysis showed that DD genotype,age,male gender and essential hypertension contributed significantly to the CCA-IMT increase in type 2 diabetic patients(OR=3.689,1.054,1.562,respectively,P
4.Primary gastric inflammatory myofibroblastic tumor:a clinicopathologic study
Yiqiang LIU ; Dan XU ; Xiaozheng HUANG ; Lixin ZHOU ; Weicheng XUE
Chinese Journal of Clinical and Experimental Pathology 2015;(2):164-168
Purpose To investigate the clinicopathologic features, diagnosis and differential diagnosis of primary gastric inflammatory myofibroblastic tumor ( IMT) . Methods Four cases of gastric IMTs were studied by clinicopathologic analysis, immunohistochemistry and in situ hybridization, and the related literature was reviewed. Results In four cases there are two males and two females, age range from 21 to 51 years old, and tumor size ranged from 1. 5 to 6. 5 cm in the greatest dimension. Histologically, these tumors were composed of varied spindle cells and chronic inflammatory cells, in a myxoid or hyalinized stroma. Occasionally, there were calcifica-tion and ossification areas. Most of the spindle cells had bland appearance and a minority of the tumor cells showed mild atypia. One to two mitotic figures were recognized in 10 high power fields ( HPFs) in 1 to 2 patients. Smooth muscle actin staining was observed in all tumors and ALK staining observed in two tumors. One tumor focally expressed CD34. S-100, desmin, CD68, CD117 and DOG1 was negative in all IMTs. The patients were followed up from 24 to 66 months, and none of them had tumor relapsed or metastasis. Conclu-sions Primary gastric IMTs have an intermediate behavior, and a few cases have malignant potential. It should be distinguished from other spindle cell lesions similar to IMT.
5.KY-ⅡACUTE CEREBRAL APOPLEXY DIAGNOSTIC INSTRUMENT
Donghe SUN ; Ruixian YU ; Lifeng WANG ; Weicheng HUANG ; Xiangjian LIU ;
Chinese Medical Equipment Journal 1989;0(04):-
The report introduces a microcomputer controlled instrument which can be used to identify and diagnose acute cerebral apoplexy.The methods of statistics and probability theory are adopted by the instrument to select “body omen” and compute “value”.Z80A is used as the central processing unit and the external device is processed as an internal storage by using linear encodige.The instrurrent uses ZSOA assembly language to make software.
6.Investigation of direct medical expense for surgical patients with splenome-galic advanced schistosomiasis in Hunan Province from 2010 to 2014
Jiaxin LIU ; Ruihong ZHOU ; Weicheng DENG ; Jie PAN ; Lu ZHOU ; Ling LIU ; Zhiwei SHAO ; Meie LIU
Chinese Journal of Schistosomiasis Control 2016;28(4):365-369
Objective To understand the direct medical expense for surgical patients with splenomegalic advanced schisto?somiasis and its influencing factors,so as to provide evidences for relevant departments to improve the rescue strategy of ad?vanced schistosomiasis. Methods The data about the expenses of patients with splenomegalic advanced schistosomiasis hospi?talized in Xiangyue Hospital affiliated to Hunan Institute of Schistosomiasis Control from January 2010 to August 2014 were col?lected,the hospitalization expense and hospital stays of the patients were analyzed,and the factors influencing the hospital ex?penses were analyzed by the univariate and multi?factor analyses. Results From January 2010 to August 2014,totally 249 cas?es were hospitalized in the hospital,their average hospital stays and hospital expenses were 28.92 d and 18 896.13 Yuan,and both of them were increased year by year. Among all the kinds of expenses,the constitution ratios of the medicine expenses were the highest,and those in the 5 years were all above 44%. The results of the univariate and multi?factor analyses showed that the hospital stays,the amount of intraoperative bleeding,liver function classification,postoperative complications,age,portal hy?pertensive gastropathy were the influencing factors of the hospital expenses. Conclusion Presently,the burden of the direct hospital expenses of the patients with splenomegalic advanced schistosomiasis is still heavy. The government should further im?prove the proportion of the compensation of medical assistance and perfect the medical aid scheme. Meanwhile ,the hospitals should strengthen the management and standardize medical behavior to reduce the hospitalization expenses of the patients.
7.Feature changes of MMP-2/9 activities and TIMP-1/2 protein expressions during the progression of pulmonary fibrosis in rats
Shanzhong TAN ; Chenghai LIU ; Wei ZHANG ; Xiong LU ; Weicheng YE ; Zhenzhen CAI ; Ping LIU
Journal of Integrative Medicine 2006;4(4):402-7
OBJECTIVE: To investigate the dynamic trends of activities of matrix metalloproteinase (MMP)-2/9 and protein expressions of their inhibitors-tissue inhibitor of matrix metalloproteinase (TIMP)-1/2 during the progression of pulmonary fibrosis in rats so as to get insight of the roles played by MMP-2/9 in lung injury and fibrogenesis. METHODS: Forty-eight SD rats were randomly divided into normal control group (n=18) and bleomycin (BLM)-treated group (n=30). The pulmonary fibrosis was induced by intratracheal injection of BLM once. At the consecutive time of 1 day, 3 days, 1 week, 2, 3, and 4 weeks after intoxication, the lung-to-body weight ratio was calculated and the inflammation and collagen deposition in lung tissue were checked by HE and Masson stainings respectively. Meanwhile, the content of hypdroxyproline (Hyp) in lung tissue was assayed with Jamall's method, the protein expressions of MMP-2/9, TIMP-1/2 were examined by Western blotting, and the activities of MMP-2/9 were detected by gelatin zymography. RESULTS: The histopathological changes in lung tissue in the BLM-treated group from 1 day to 2 weeks after intoxication presented local lesions, broadened alveolar wall and septum, infiltration with lots of inflammatory cells and few of fibroblasts inside alveolar space and septum. At this early stage in the BLM-treated group, the lung-to-body weight ratio was increased significantly, the protein expressions and activities of MMP-2/9 were obviously increased especially for activity of active MMP-2, and the protein expressions of TIMP-1/2 were also increased gradually, as compared with those in the normal control group. From 3 to 4 weeks after intoxication in the BLM-treated group, the alveolar structure was damaged, parts of the alveolar space collapsed and replaced by collagens and fibroblasts, and the alveolar wall and septum obviously widened with remarkable fibrotic characteristics, as compared with those in the normal control group. Meanwhile, the lung-to-body weight ratio and the activities of MMP-2/9 were decreased in the BLM-treated group as compared with those in the same group at 2 weeks after intoxication, but the content of Hyp and the protein expressions of TIMP-1/2 were both increased dramatically, especially at 4 weeks after intoxication. CONCLUSIONS: During the lung fibrogenesis induced by BLM in rats, the alveolar inflammation is the most important alteration with enhanced MMP-2/9 activities in the early stage. While in the late stage, the main change is displayed as pulmonary fibrosis, characterized by increased TIMP-1/2 and declined MMP-2/9 activities.
8.Clinical application of combining double suture fixation and resection partial fat retro-orbicularis oculus in some specially difficult blepharoplasty
Weicheng GAO ; Bin LIU ; Zhiji CHEN ; Xiaoqing HU ; Changyang WAN ; Dameng LIU
Chinese Journal of Medical Aesthetics and Cosmetology 2017;23(2):103-106
Objective To summarize the experience of clinical application of combining double suture fixation and resection of partial fat retro-orbicularis oculus in some specially difficult blepharoplasty.Methods During upper blepharoplasty,patients with heaviness and bulkiness in the both upper eyelid and lateral upper orbital region,we combined double suture fixation and resection partial fat retro-orbicularis oculus.First,partial pretarsal bulky fat was resected,and to form skin-orbicularisoculi composite below incision line.And then,some thickened fat retro-orbicularis oculus was resected,which was also named preseptal and retro-orbicularis oculus fat (ROOF).Double suture fixation techniques were applied to form dynamic and physiological double eyelid.Results 146 cases had satisfactory effectiveness,except for 2 cases with secondary operation because of some superficial double eyelid creases,and 1 case had hematoma,and 3 had transient numbness in the lateral supraorbital nerve region.They were satisfied with healthy eyelid skins,concealed incision and non-serious complications followed at 3-24 months postoperatively.Conclusions Combining double suture fixation and resection of partial fat retro-orbicularis oculus would appear to be a useful adjunct to standard blepharoplasty techniques in selected patients.
9.Effect of curcumin preconditioning on activation of mast cells during intestinal ischemia-reperfusion in rats
Weicheng ZHAO ; Chengxiang YANG ; Hanbing WANG ; Hongzhen LIU ; Jing WANG ; Bin ZHANG ; Meijuan LIAO
Chinese Journal of Anesthesiology 2014;34(9):1120-1122
Objective To evaluate the effect of curcumin preconditioning on the activation of mast cells during intestinal ischemia/reperfusion (I/R) in rats.Methods Twenty-four female Sprague-Dawley rats,weighing 180-220 g,were randomly divided into 3 groups (n =8 each) using a random number table:sham operation group (S group),intestinal I/R group (I/R group),and curcumin preconditioning group (Cur group).Intestinal I/R was produced by occlusion of superior mesenteric artery (SMA) for 75 min followed by reperfusion.At 5 days before I/ R,curcumin 200 mg/kg (in 20 mg/ml normal saline) was given through a gastric tube in Cur group,while the equal volume of normal saline was given instead in S and I/R groups.All the rats were sacrificed at 4 h of reperfusion,and the intestinal specimens were obtained for microscopic examination and for determination of tryptase expression and β-hexosaminidase content.Intestinal damage was assessed and scored according to Chiu.Results Compared with S group,Chiu's score and β-hexosaminidase content were significantly increased,and the expression of tryptase was up-regulated in I/R and Cur groups.Compared with I/R group,Chiu' s score and β-hexosaminidase content were significantly decreased,and the expression of tryptase was down-regulated in Cur group.Conclusion The mechanism by which curcumin preconditioning attenuates intestinal I/R injury is related to inhibited activation of mast cells of rats.
10.Role of nitric oxide in spinal cord in maintenance of diabetic neuropathic pain in rats
Weicheng ZHAO ; Meijuan LIAO ; Chengxiang YANG ; Hanbing WANG ; Wanyou HE ; Hongzhen LIU ; Bin ZHANG
Chinese Journal of Anesthesiology 2013;33(9):1110-1113
Objective To evaluate the role of nitric oxide (NO) in the spinal cord in the maintenance of diabetic neuropathic pain in rats.Methods Male Sprague-Dawley rats,aged 2 months,weighing 180-200 g,were used in the study.Diabetes mellitus was induced by intraperitoneal streptozotocin (STZ) 60 mg/kg and confirmed by blood glucose > 16.7 mmol/L on day 2 after STZ injection.Twenty diabetic rats were randomly allocated into diabetes mellitus group (DM group,n =10) and L-NAME (non-selective NOS inhibitor) group (LN group,n =10).Another 10 age-matched normal rats served as control group (C group).On 21 days after STZ injection,L-NAME 10 mg/kg was injected intraperitoneally once a day for 7 consecutive days in LN group,whereas the equal volume of normal saline 5 ml/kg was given instead of L-NAME in DM group.Paw withdrawal threshold to yon Frey filament stimulation (PWT) was measured before STZ infection and on 7,14,21 and28 days after STZ injection.The rats were sacrificed after the last measurement of PWT and the lumbar segments of spinal cord were removed for determination of NO content and neuronal nitric oxide synthase (nNOS) expression (by Western blot analysis) in spinal cord tissues.Results Compared with C group,PWT was significantly decreased on 14,21 and 28 days after STZ injection,and the NO content and nNOS expression in spinal cord tissues were increased in DM and LN groups (P < 0.05).Compared with DM group,PWT was significantly increased on 28 days after STZ injection,and the NO content and nNOS expression in spinal cord tissues were decreased in LN group (P < 0.05).Conclusion NO in the spinal cord is involved in the maintenance of diabetic neuropathic pain in rats and the mechanism is related to the enhanced function of nNOS.