Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University最新文献

{"title":"[Evaluation of bone structure and quality of ovariectomized rats by microcrack].","authors":"Ru-chun Dai,&nbsp;Er-yuan Liao,&nbsp;Chuan Yang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To compare microcrack with bone mineral desity (BMD), bone histomorphometry and biomechanics parameters, and to investigate the potential of microcrack in the evaluation of bone biomechanical quality.</p><p><strong>Methods: </strong>Eight 10-month-old Sprague-Dawley rats were served as baseline controls, and 90 10-month-old rats were randomly divided into A, B, and C groups. Each group comprised ovariectomized (OVX), 17 beta-estradiol treated [EST, 10 micro/(kg x d)] and sham-operated (SHAM) subgroups. Rats from groups A,B and C were killed at the 3rd, 15th and 21st week post-operatively. Total body and lumbar vertebral BMD were measured before being killed, and BMD of isolated lumbar vertebrae and tibiae were measured after killing. Bone histomorphometry of the proximal end of isolated right tibia was performed,and compression test was carried out on the isolated 5th lumbar vertebra (L5). After fatigue damage, the isolated 4th lumbar vertebra was stained by en bloc basic fuchsin staining, and microcrack density (Cr. Dn) and microcrack surface density (Cr. SDn) were de- termined on the bone tissue sections. Bone parameters in each subgroup of rats were observed at different time.</p><p><strong>Results: </strong>(1) At the 15th and 21st week post-operatively, multi-part BMD, Cr. Dn and Cr. SDn were higher than those at the 3rd week. (2) At the 15th week, trabecular separation (Tb. Sp) increased, trabecular number (Tb. N) decreased, and the maximum loading level and elastic modulus of vertebra reached the peak. (3) At the 3rd week, Tb. Sp, Cr. Dn and Cr. SDn in the OVX subgroup were greater than those in the EST subgroup, while the percentage of trabecular area (TbTr) in the OVX subgroup was lower than that of the EST and SHAM subgroups. No changes of BMDs and biomechanic parameters were observed among the three subgroups. (4) At the 15th week, multi-part BMD and maximum loading level in the OVX and EST subgroups were lower than those in the SHAM subgroup, while elastic modulus, bone histomorphometry parameters, Cr. Dn and Cr. SDn had no change among the three subgroups. (5) At the 21st week, multi-part BMDs, Tb. N and TbTr in the OVX subgroup were smaller than those in the EST and SHAM subgroups. Tb. Sp, bone formation rate, mineral apposition rate, percent labeled perimeter,Cr. Dn and Cr. SDn in the OVX subgroups were greater than those in the EST and SHAM subgroups. Maximum loading level and elastic modulus of vertebra in EST and OVX subgroups were lower than those in the SHAM subgroup. There were no significant differences in all of these parameters Microcrack can be regarded as an alterative between the EST and the SHAM subgroup. Conclusion parameter in the evaluation of bone biomechanical quality.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"591-6"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Meconium-stained amniotic fluid and intra-amniotic infection].","authors":"Pi-Xiang Pi,&nbsp;Fu-Fan Zhu,&nbsp;Jian Huang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To explore the relationship between meconium-stained amniotic fluid and Fifty-six women of cesarean section with intact membrane and intra-amniotic infection.</p><p><strong>Methods: </strong>without parturient were divided into 3 groups according to the property of amniotic fluid (no meconium, I to approximately II degree meconium stainedness, and III degree mecomium stainedness). The content of interleukin-6 in amniotic fluid was measured with ELISA. The infiltration of inflammatory cells in the placenta and its membrane was determined by the pathological diagnosis. The neonatal Apgar score and puerperial infection after the surgery were analyzed.</p><p><strong>Results: </strong>There were no significant differences in the content of IL-6 in amniotic fluid and in the infiltration of inflammatory cells among the 3 groups. But the rate of neonatal asphyxia in the meconium-stained cases was significantly higher than that without meconium.</p><p><strong>Conclusion: </strong>Meconium-stained amniotic fluid is a marker of fetal distress, but it is not related to intra-amniotic infection.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"648-50"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25035123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Protective effects of phosphoramidon on the experimental myocardial injury in rats].","authors":"Fei He,&nbsp;Ming Sun,&nbsp;Rong Guo","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the protective effects of phosphoramidon on the experimental myocardial injury in rats.</p><p><strong>Methods: </strong>Thirty-six Wistar rats were randomly divided into 3 groups of 12: the control group (Control), the isoproterenol group (ISO) and the protection group (PA). All rats were anesthetized after 24 hours and the blood was sampled from the carotid artery. The activities of creatine phosphokinase (CPK) and lactic dehydrogenase (LDH) in the serum and the contents of ET in the plasma were detected; then the hearts were isolated and the total layers of apical myocardium were solidified, embedded, sectioned, stained with HE and graded pathologically.</p><p><strong>Results: </strong>The serum activities of CPK and LDH, and the plasmatic content of ET in the ISO group were significantly higher than those in the control group and PA group (P < 0.05); the degree of myocardial pathological damage in the ISO group was significantly higher than that in the control group (P < 0.01), while the degree of damage in the PA group was lower than that in the ISO group (P < 0.05).</p><p><strong>Conclusion: </strong>Endothelin is involved in the pathologic process of experimental myocardial injury in rats. Phosphoramidon can protect the myocardial injury in rats and its mechanism may be to inhibit ECE and reduce the endothelins production.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"572-4"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic value of carboxypeptidase-H autoantibodies in detecting latent autoimmune diabetes in adults.","authors":"Zhi-guang Zhou,&nbsp;Lin Yang,&nbsp;Gan Huang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the diagnostic value of carboxypeptidase-H (CPH) autoantibodies in Chinese patients with the latent autoimmune diabetes in adults (LADA).</p><p><strong>Methods: </strong>One hundred and fifty-four Type 1 diabetes, 104 Type 2 diabetes, and 144 healthy people were enrolled. Recombinant human CPH (54 kD) was labeled by in vitro translation with 35S-methionine and used to evaluate autoantibodies to CPH (CPH-Ab). Radioimmunoassay was applied to detect antibodies to glutamic acid decarboxylase (GAD-Ab), intracellular part of protein tyrosine phosphatase-like protein (IA2ic-Ab), and autoantibodies to insulin (IAA).</p><p><strong>Results: </strong>No differences in CPH-Ab prevalence were found among Type 1 diabetic patients (5/154, 3.2%), Type 2 diabetic subjects (6/104, 5.7%),and the healthy controls (3/144, 2.1%). The prevalences of GAD-Ab, IA2ic-Ab, and IAA were 15.4% (16/104), 2.9% (3/104), and 2.3% (1/43), respectively in Type 2 diabetes. All IA2ic-Ab or IAA-positive patients with Type 2 diabetes were GAD-Ab-positive. No GAD-Ab- or IAA-positive subjects were observed in CPH-Ab-positive patients with Type 2 diabetes.</p><p><strong>Conclusion: </strong>CPH-Ab may provide some diagnostic value for LADA, and improve the sensitivity in diagnosing LADA in Chinese when combined with GAD-Ab test in Type 2 diabetes.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"549-52"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Angiotensin converting enzyme gene polymorphism and type 2 diabetic nephropathy].","authors":"Lan Liao,&nbsp;Min-xiang Lei,&nbsp;Hui-ling Chen","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To prospectively clarify the relationship between angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism and diabetic nephropathy (DN) in Type 2 diabetic patients.</p><p><strong>Methods: </strong>We examined 66 Type 2 diabetic patients with normal buminure. All patients suffered from diabetes mellitus for more than 5 years and matched well in age, body mass index (BMI), mean arterial pressure (MAP), fasting blood sugar (FBS), and urinary excretion of albumin (UAE). Patients were classified into 3 groups according to genotypes of ACE. ACE gene I/D polymorphism was identified by polymerase chain reaction (PCR). The patients were followed up for 5 years and their UAE, serum creatinine (Scr), and HbAlc were checked once a year.</p><p><strong>Results: </strong>Eight subjects (12%) were discontinued prematurely. At the end of the study, there were no significant differences in the clinical parameters such as BMI, MAP, FBS, HbA1c, UAE, and Scr among the 3 groups (P > 0.05), and also in DN incidence in Type 2 diabetic patients among the 3 groups (II 45.8%, ID 52.3%, and DD 46.1%, respectively, P > 0.05 ). The increased degree of UAE among the 3 groups was similar at the end-point of the study (P > 0.05).</p><p><strong>Conclusion: </strong>The DD genotype of ACE gene may not be a clinically useful genetic marker for predicting the genesis and development of DN in Type 2 diabetic patients in Chinese. There is no association between ACE gene I/D polymorphism and the genesis and development of DN in Type 2 diabetic patients.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"553-6"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Expression and transcription of inducible nitric oxide synthase in the liver ischemic preconditioning in rats].","authors":"Xin-sheng Lü,&nbsp;Yong-qiang Zhan,&nbsp;Xin-ping Yang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the changes in transcription and expression of inducible nitric oxide synthase (NOS2) in the liver ischemic preconditioning (IP), and to determine the role of nitric oxide (NO) synthetic pathway in the liver IP in rats.</p><p><strong>Methods: </strong>We randomly divided 131 Sprague Dawley rats into 3 groups: ischemia/reperfusion (I/R) group (n=52), IP group (n=41), and sham operation (S) group (n=38). Plasm NO concentration and the transcription and expression of NOS2 were detected 2 hours, 24 hours, and 1 week after the operation.</p><p><strong>Results: </strong>(1) In the IP group, the NO concentrations at the 2nd hour, the 24th hour, and 1 week were significantly higher than those in the S group (P < 0.05, P < 0.01, P < 0.01, respectively) and the NO concentrations at the 2nd hour and the 24th hour were obviously higher than those in I/R group (all P < 0.01). In the I/R group, the NO concentration at the 2nd hour was significantly lower than that in the S group (P < 0.05); there was no significant difference between the I/R group and the S group 24 hours after the operation (P > 0.05), and the NO concentration 1 week after the operation was obviously higher than that in the S group (P < 0.05). (2) In the IP group, the transcription of NOS2 2 and 24 hours after the operation were significantly increased compared with that in the I/R group (all P < 0.05) , but after 1 week, the transcription was not statistically different between the IP group and the I/R group (P > 0.05). (3) In the IP group, the expressions of NOS2 after 2 and 24 hours were obviously higher than those in the I/R group (P < 0.05) and the S group (P < 0.05), but the expression between the IR group and the S group was not significantly different (P > 0.05); after 1 week, the expressions of NOS2 in IP group and I/R group were weakly positive (P > 0.05) , and those in S group were negative (P > 0.05). Conclusion The transcription and the expression of liver NOS2 increase after the liver received ischemic preconditioning in rats. That the peak phases of transcription and expression of NOS2 are ahead of time may be related to the early protective effect of the liver IP.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"563-6"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Fourteen cases of primary malignant lymphoma of bone].","authors":"Ji-cheng Zhou,&nbsp;Guang-sen Zhang","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"659-60"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25035128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Heat shock pretreatment inhibits the release of Smac from mitochondria and decreases H2O2-induced cardiomyocyte apoptosis].","authors":"Bi-mei Jiang,&nbsp;Wei-min Xiao,&nbsp;Yong-zhong Shi","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To explore the effect of heat shock pretreatment on H2O2-induced apoptosis of neonatal rat cardiomyocytes and the release of Smac from mitochondria.</p><p><strong>Methods: </strong>After heat shock pretreatment (42 degrees C for 1 h), neonatal cardiomyocytes were exposed to H2O2 (0.5 mmol/L) for 6, 12, 24, and 36 h, respectively. The apoptotic morphological changes and percentage of apoptotic nuclei were analyzed. Activities of caspase-3, 9 were assayed with caspase colorimetric assay kit and Western-blotting. Inducible heat shock proteins were detected by Western-blotting analysis. The release of Smac from mitochondria to cytoplasm was observed by Western-blotting and immunofluorescence.</p><p><strong>Results: </strong>(1) H2O2 (0.5 mmol/L) resulted in a marked release of Smac from mitochondria to cytoplasm at 2 h after the treatment, the activation of caspase-9 and caspase-3 at 4 h after the treatment and specific morphological changes of apoptosis at 24 h after the treatment. (2) Heat shock pretreatment (42 degrees C, 1 h) could increase the expression of hsp90, hsp70 and betaB-crystallin, and inhibit the H2O2-induced release of Smac from mitochondria, the activity of caspase-9, caspase-3 and apoptosis of cardiomyocytes.</p><p><strong>Conclusion: </strong>(1) Mitochondrial signal transduction pathway is involved in the apoptosis of cardiomyocytes induced by H2O2; (2) Heat shock pretreatment can inhibit the release of Smac from mitochondria and the activities of caspase-9, 3 and protect cardiomyocytes against H2O2-induced apoptosis.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"567-71"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Construction of recombinant eukaryotic expression vector of NKG2D gene and its expression in COS-7 cells].","authors":"Ying-xia Liu,&nbsp;Guo-ling Hu,&nbsp;Min Liu","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To construct recombinant eukaryotic expression vector of NKG2D, and to examine its expression in COS-7 cells.</p><p><strong>Methods: </strong>Human NKG2D cDNA was obtained from peripheral blood mononuclear cells using RT-PCR, and then the target gene was cloned into pMD18-T vector. A eukaryotic expression plasmid containing target gene was constructed by DNA recombinant technique, and was confirmed by double restriction enzymes digestion and DNA sequence analysis. The recombinant plasmid with encapsuled lipofectamine was transfected into COS-7 cells, and the transfected COS- The 7 cells containing expressive target gene were confirmed by RT-PCR and flow cytometry.</p><p><strong>Results: </strong>The sequence of NKG2D cDNA obtained from the recombinant eukaryotic expression vector was identical with that published on GeneBank. The NKG2D gene was expressed successfully in COS-7 cells.</p><p><strong>Conclusion: </strong>The recombinant expression plasmid containing NKG2D gene is constructed successfully. After being transfected to COS-7 cells, the NKG2D protein is expressed by the engineering COS-7 cells line, which lays a foundation for further studying biological activity of NKG2D.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"579-82"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25206224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Different patterns of the left ventricle of heart in hypertensive patients].","authors":"Dan Wen,&nbsp;Lei Huang,&nbsp;Jun Wang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To observe the clinical characteristics of different patterns of the left ventricule in hypertensive patients.</p><p><strong>Methods: </strong>Echocardiography was used in 228 essential hyventricule of heart in hypertensive patients and 60 healthy individuals.</p><p><strong>Results: </strong>In the hypertensive group, the rate of normal left ventricle, concentric remodeling, concentric hypertrophy and eccentric hypertrophy were 21.9%, 36.4%, 32.9% and 8.8%, respectively. The aortic root dimension and left atrial dimension were higher in the hypertensive group than those in the normal group (P < 0.05), especially for concentric hypertrophy and eccentric hypertrophy. Cardiac index and stroke volume index in eccentric hypertrophy were higher than those in the normal group and concentric remodeling (P < 0.05). Ejection fraction and fractional shortening in concentric remodeling were the highest and ejection fraction in eccentric hypertrophy was the lowest among all patterns (P < 0.05). E/A rate was lower in the hypertensive group than in the normal group (P < 0.05), especially for concentric hypertrophy and eccentric hypertrophy. The total peripheral resistance was the highest in concentric remodeling and the lowest in eccentric hypertrophy (P < 0.05).</p><p><strong>Conclusion: </strong>Different patterns in the left ventricle have their own characteristics and patients should be treated differently according to the patterns.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 6","pages":"623-6"},"PeriodicalIF":0.0,"publicationDate":"2003-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25036391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}