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Sun G.F.,the Affiliated Hospital of Zunyi Medical College
Zhonghua wai ke za zhi [Chinese journal of surgery] | Year: 2012

To explore the influence of Free-skin-grafted penoscrotal avulsion injuries on spermatogenesis. Forty-two male New Zealand albino rabbits during child-bearing period were divided into the experimental group (n = 24) and the control group (n = 18) using random digits table, and 24 female rabbits with reproductive history were used for mating experiment. The experimental group animal's scrotum skin were excised, and the split skin from abdominal region was used to repair the skin defect of scrotum. The control group did not any processing. Six rabbits were randomly chosen respectively in control group and on the 3rd and 8th weekend after the model was successfully established in experimental group. The testicular surface temperature was measured in the eighteen rabbits using the method of burying thermometer, then the testicular biopsy were performed for hematoxylin-eosin (HE) staining. On the 8(th) weekend after the model was successfully established in experimental group, matched-pair feed was performed in the other 12 rabbits respectively in experimental group and in control group. Observation of corresponding mother rabbit fertility. Three patients of penoscrotal avulsion injuries were treated using split skin grafts, and the information of sex life and the quality of sperm were obtained by follow up. The testicular surface temperature was similar on the 3rd and 8th weekend after the model was successfully established in experimental group [(36.15 ± 0.24)°C, (36.77 ± 0.42)°C] with that of the control group. Testis tissue (HE) staining showed the tier of spermatogenic cells was rule arrangement and lot of mature sperms were found in the convoluted seminiferous tubules in control group. The tier of spermatogenic cells was diminished and disposed derangement, the spermatozoa were not seen on the 3(th) weekend of the experiment group. The tier of spermatogenic cells was increased and some spermatozoa were seen on the 8th weekend of the experiment group. Male and female matched-pair feed showed the experimental group conception rate 8/12, and 4.1 ± 3.2 rabbit babies were born averagely, while that of was 12/12 and 6.0 ± 1.3 in control group (P > 0.05). The skin grafts there were some contracture in early stage (1 - 2 months) when the skin grafts applied to repair the avulsing scrotum in three patients. But the skin grafts became loose with downward sagging and there were the good cosmetic result in one year, and without any contracture. The sperm quality was normal after the skin grafts applied to repair the avulsing scrotum in the late stage. The skin grafting is little arrest the testicle spermatogenesis in the three methods (skin flap reconstruction scrotum, testicle buried, split skin grafting) that have usually been used to repair scrotum skin lose. For a young male, the best treatment for penoscrotal avulsion injuries is free skin grafting, while skin flaps are not recommended for reconstructing the scrotum. Source

Wei Y.,the Affiliated Hospital of Zunyi Medical College
Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology | Year: 2011

An improved tracheal intubation method was used in preparation of myocardial infarction model in the mouse for increasing the success rate. The mice were intubated by an improved trachea cannula through oral cavity. The left anterior thoracotomy performed. The myocardial infarction model was made by legating the left anterior descending coronary artery in mouse. The color of heart was observed, and electrocardiogram was recorded. The survival rate and pathologic change were observed after two weeks of operation. 40 myocardial infarction model mice were made by improved trachea cannula. The color of ventricles anterior wall had got madder red, and ST stages were raised on II leads of electrocardiogram in all of model mice. After two weeks, 27 mice were survival. The survival rate was 87.1% except for accidental death during operation. The heart chamber expanded and ventricular wall became thin in myocardial infarction mice by eyes. After pathological sections were stained, by HE cardiac muscle fibers ruptured or lysed. There were some of necrosis of myocardiac cells and many of infiltration of inflammatory cells. Application of an improved tracheal intubation method simplified operation of tracheal intubation during preparation of myocardial infarction model in the mouse. The trauma was tinier than the other one, and achievement ratio of the model preparation was improved. Source

Yan Z.P.,the Affiliated Hospital of Zunyi Medical College
Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine / Zhongguo Zhong xi yi jie he xue hui, Zhongguo Zhong yi yan jiu yuan zhu ban | Year: 2011

To study the correlation between rhubarb and expressions of antimicrobial peptides (AP) in the small intestine of mice by observing the effect of rhubarb on it. Thirty healthy ICR mice were randomly divided into the test group and the control group, fifteen in each. Ten percent rhubarb decoction and equal volume of normal saline solution was respectively given to mice of the two groups by gastrogavage. Mice were sacrificed 24 h later. The small intestines from the ligament of Treitz to the ileocecal junction were removed by ventrotomy. The lumen of each resected intestine was rinsed with 10% acetic acid solution and the perfusate was collected. The small intestine homogenate was prepared using 30% acetic acid solution. The equivalent samples were electrophoresed on 12.5% AU-PAGE and Tricine-16.5% SDS-PAGE, and peptide bands were visualized with Coomassie brilliant blue R-250 or ammoniacal silver-stained respectively. And then analysis of gel imaging and gel overlay assay were performed. The bactericidal activity and expressions of AP in the small intestine of samples in the two groups were compared. The molecular weight of AP in the small intestine was measured. After gastrogavaged with rhubarb decoction, changes of AP contents in the small intestine homogenate of mice were not obvious, but the molecular weights of AP were different. But the AP contents in the small intestine perfusate obviously increased, with the molecular weights being 14.3 to 18.4 kDa. But its bactericidal capacity showed no statistical difference when compared with that of the control group (P>0.05). Rhubarb enhanced the expressions of partial APs in the small intestine, which might possibly be one of its mechanisms of protecting and strengthening the intestinal barrier. Source

Cheng C.,Chongqing Medical University | Jiang L.,Chongqing Medical University | Yang Y.,Chongqing Medical University | Wu H.,the Affiliated Hospital of Zunyi Medical College | And 2 more authors.
Translational Stroke Research | Year: 2015

High mortality following aneurysmal subarachnoid hemorrhage (aSAH) occurs in the early phase, but the underlying mechanism of early brain injury (EBI) in aSAH was less elucidated. In this study, we aimed to investigate the association of apolipoprotein E (APOE) genotypes and early cerebral perfusion after aSAH. We collected venous blood of aSAH patients on admission for APOE genotype identification, applying computed tomography perfusion (CTP) scanning within 24 h after onset. The CTP parameters between patients with different APOE genotypes were compared. Then, a positive item was chosen for separate uni- and multivariate logistic regression analyses to seek its risk factors. Our results showed mean transit time (MTT) rather than other parameters was significantly longer in patients with the APOEε4 allele, compared to those without APOEε4 (6.45 ± 1.17 versus 5.83 ± 0.84 s, P = 0.019). APOEε4 acted as an independent risk factor for MTT prolongation (>5.9 s) in uni- (P = 0.031, OR = 3.960, 95 % CI = 1.131–13.863) and multivariate (P = 0.019, OR = 9.822, 95 % CI = 1.458–66.193) logistic regression analyses, respectively. APOEε4 may induce cerebral perfusion impairment in the early phase, contributing to EBI following aSAH, and assessment of APOE genotypes could serve as a useful tool in the prognostic evaluation and therapeutic management of aSAH. © 2015, Springer Science+Business Media New York. Source

Duan K.,the Affiliated Hospital of Zunyi Medical College
World Chinese Journal of Digestology | Year: 2014

Aim: To investigate the value of alpha fetoprotein (AFP), Dickkopf1 glycoprotein (DKK1) and α-L-fucosidase (AFU) in the early diagnosis of hepatocellular carcinoma (HCC).Methods: One hundred and three patients with primary HCC, 60 patients with liver cirrhosis, 127 patients with chronic hepatitis B, and 236 healthy people were included in the study. AFP, DKK1 and AFU were detected and compared among the four groups. The value of these markers in the diagnosis of primary HCC was evaluated.Results: Serum levels and abnormal rates of AFP, DKK1 and AFU were significantly higher in the HCC group than in the other groups (P < 0.05), and in the liver cirrhosis group than in the chronic hepatitis B group and control group (P < 0.05). Combined detection of AFP, DKK1 and AFU in the diagnosis of HCC had a sensitivity of 89.3%, a Youden index of 0.789, and a negative predictive value of 97.2%. The diagnostic accuracy of combined detection was significantly improved compared to the detection of any single index.Conclusion: Combined detection of AFP, AFU and DKK1 has a high sensitivity in the diagnosis of primary HCC and can reduce the rate of missed diagnosis. © 2014 Baishideng Publishing Group Inc. All rights reserved. Source

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