Animals ; Brain Ischemia ; metabolism ; pathology ; Male ; Metallothionein ; metabolism ; Nerve Tissue Proteins ; metabolism ; Neurons ; pathology ; RNA, Messenger ; genetics ; Rats ; Rats, Wistar ; Reperfusion Injury ; metabolism ; pathology

Objective To investigate the induction mechanism of MT ⅢmRNA in the brain after cerebral ischemia.Methods The forebrain ischemia reperfusion model was established in rats. The changes of the expression of MT Ⅲ mRNA in hippocampus after forebrain ischemia reperfusion were observed by in situ hybridization method. The changes of free Zn 2+ in hippocampus after forebrain ischemia reperfusion was examined using Zn 2+ specific fluorescent probe(TSQ). The Zn 2+ chelator (CaEDTA) was injected into the lateral ventricles for determining influences of Zn 2+ on the MT Ⅲ mRNA expression and the neuronal damage after forebrain ischemia/reperfusion.Results (1) The expression of MT ⅢmRNA in hippocampus increased gradually after cerebral ischemia and reached the peak in 96 hours after reperfusion. Seven days after reperfusion the expression of MT ⅢmRNA reduced to the normal level. (2) Zn 2+ fluorescence in the hilus of dentate gyrus, CA 3 region and the stratum radiatum and stratum oriens of CA 1 decreased slightly at 48 hours after reperfusion. From 72 to 96 hours after reperfusion, the fluorescence returned to normal, but some new fluorescence dots appeared in pyramidal neurons of CA 1 and the hilus of dentate gyrus increased gradually. Seven days after reperfusion, the fluorescence returned to normal. (3) The cell membrane impermeable Zn 2+ chelator could reduce the intracellular concentration of free Zn 2+ and the expression of MT Ⅲ mRNA.Conclusion The expression of MT Ⅲ mRNA can be induced by the increase in the concentration of intracellular free Zn 2+ after forebrain ischemia/reperfusion.

Humans ; Poisoning ; prevention & control ; therapy ; Solvents ; poisoning

Adolescent ; Adult ; Benzene ; toxicity ; China ; Female ; Humans ; Leukemia ; chemically induced ; diagnosis ; Male ; Middle Aged ; Occupational Exposure ; Young Adult

Objective To investigate the value of multi-slice CT in diagnosis of abdominal cocoon.Methods CT findings of six cases with pathologically proved abdominal cocoon were collected and analyzed retrospectively.The three-dimensional imagines were obtained including multi-planar reconstruction(MPR),maximum intensity projection(MIP)and volume rendering(VR)at workstation,the rela-tionships between the lesions and surrounding structure were observed.Results A group of local small intestine were seen gathered in all six cases,the coiled intestine arranged inaccordionshape orbananashape.The fibrous capsule were seen around them with different thickness,which were low density and slightly enhancement.Mesenteric arteries showed abnormal changes,showing ten-sion,aggregation.Conclusion MSCT can provide a wealth of diagnostic information and is the best method of examination abdomi-nal cocoon.

Feeding Methods ; Humans ; Infant ; Male ; Mastication ; Syphilis ; etiology

Epstein-Barr Virus Infections ; Herpesvirus 4, Human ; Humans ; Lymphoproliferative Disorders ; classification ; pathology ; virology

Objective To evaluate of the clinical effect of triple arthrodesis and bone grafting combined with plat screw internal fixation for treatment of necrosis of talus. Methods The clinical data of 24 patients with necrosis of talus who were treated by triple arthrodesis and bone grafting combined with plat screw internal fixation from April 2011 to January 2015 in Xiangya Second Hospital of Central South Univer-sity were retrospectively analyzed. And the clinical effect were measured by AOFAS Ankle Hind-foot Scale System. Results The 24 patients were followed up for 26 months averagely (12~36 months). According to AOFAS Ankle Hind-foot Scale System, there were 4 cases of mod-erate and 20 cases of bad before treatment, and there were 18 cases of excellent, 4 cases of good, and 2 cases of moderate after the treat-ment. Conclusion It can achieve good clinical results in treatment of necrosis of talus through triple arthrodesis and bone grafting combined with plat screw internal fixation.

Azure Stains ; chemistry ; DNA, Neoplasm ; analysis ; chemistry ; Humans ; Rosaniline Dyes ; chemistry ; Staining and Labeling ; economics ; methods ; Stomach Neoplasms ; genetics ; pathology

Objective To study the effects of marrow mesenchymal stem cells on heart functions and ventricular remodeling after myocardial infarction in rats. Methods Myocardial infarction model was established by ligation of the left anterior descending coronary artery (LAD) in adult SD rats. 4 and 8 weeks after MMSCs implantation, he-modynamic evaluations, left ventricular weight/body weight ratio and heart weight/body weight ratio were determined. HE staining was performed for counting microvasculars and Van Gieson staining was used for measurements and calculation of the myocardial fibrillar collagen. Then we investigated the migration and evolution of MSCs in vivo by fluorescent microscope. Results HR was significantly decreased in transplantation MMSCs group. Eight weeks after transplantation, body weight in transplantation MMSCs group reached that of control group. At the same time, SBP, DBP and MBP were significantly increased in transplantation MMSCs group. HR was significantly decreased in transplantation MMSCs group. Secondly, left ventricular weight/body weight ratio and heart weight/body weight ratio were significantly decreased 4 weeks after transplantation MMSCs. Then the ratio was significantly decreased 8 weeks after transplantation MMSCs. Thirdly density of microvasculars was increased at the boundary of infarction site in the animals transplanted MMSCs. Finally, total volume of the myocardial fibrillar collagen was reduced in the MMSCs treated groups after MI. Conclusion Transplanting MMSCs can improve the ventricular remodeling and heart functions in acute MI rat models.