Objective To observe the positive rate of serum anti-cardiac troponin Ⅰ autoantibodies (anti-cTnI) in the patients with coronary atherosclerotic heart disease(CHD) and its clinical significance.Methods A total of 200 CHD patients and 200 healthy controls from the Department of Cardiology,Drum Tower Hospital of Nanjing University Medical School during September 2015 and May 2016 were collected in the case-control study.Serum anti-cTnI was detected with an indirect ELISA method.Meanwhile,the general data,chnical biochemical parameters and coronary vascular lesion from the two groups were analyzed.Results The positive rate of anti-cTnI in CHD patients(21/200,10.5％) was significantly higher than that in healthy controls(4/200,2.0％,P ＜ 0.01).According to the detection results of serum anti-cTnI,the participants were divided into three groups,including anti-cTnI positive group with CHD,anti-cTnd negative group with CHD and anti-cTnI positive group in healthy controls.The median age and serum Glu level in the anti-cTnI positive group with CHD were significantly higher than those in the anti-cTnI positive group in healthy controls (P ＜ 0.05),while the levels of serum HDL-C and apoA I were inverse (P ＜ 0.01).The median age and Gensini score in the anti-cTnⅠ positive group with CHD were significantly higher than those in the anti-cTnI negative group with CHD,while the level of serum HDL-C was inverse (P ＜ 0.05).Conclusion Anti-cTnI may be more likely to occur in old CHD patients with severe coronary artery lesions,and the low levels of serum HDL-C and apoA Ⅰ may correlate to the production of anti-cTnⅠ.

Objective To investigate the changes in the expression of acid-sensing ion channel 3 (ASIC3)in the dorsal root ganglion (DRG) in a rat model of bone cancer pain.Methods Twenty-four female Sprague-Dawley rats,aged 3-4 weeks,weighing 180-220 g,were randomized into 2 groups:sham operation group (group S,n =8) and bone cancer pain group (group P,n =16).Bone cancer pain was induced by inoculating Walker 256 carcinoma cells into the medullary cavity of the left tibia,while group S received normal saline instead.The pain threshold was measured after determination of body weight on the day of inoculation (T0) and on 1,3,5,7,9,11 and 14 days after inoculation (T1-7).The tibia was removed for microscopic examination of the inoculated tibia and X-ray examination.The growth of tumor cells and damage to the tibia were observed.The expression of ASIC3 in the DRG was detected using immunofluorescence.Results The tumor cell infiltration occurred in the medullary cavity and bone destruction was observed in P group.Compared with S group,the body weight was decreased at T3-T7,and the pain threshold was decreased at T4-T7,and the expression of ASIC3 in the DRG was upregulated at T7 in P group (P ＜ 0.05).Conclusion ASIC3 protein expression in DRG is significantly up-regulated in the rats with bone cancer pain,suggesting that the pathway may be involved in the mechanism of bone cancer pain.

Objective To investigate the changes in the expression of acid-sensing ion channel 3(ASIC3)in the dorsal root ganglion(DRG)in a rat model of bone cancer pain.Methods Twenty-four female SD rats,aged 3-4 yr,weighing 180-220 g,were randomly divided into 2 groups:sham operation group(group S,n =8)and bone cancer pain group(group P,n =16).Bone cancer pain was induced by intra-tibial inoculation of 10 μl Walker 256 cancer cell suspension in group P,while group S received intra-tibial inoculation of 5 μl normal saline.Body weight and paw withdrawal threshold to mechanical stimulation with yon Frey filaments(MWT)were measured at 0,1,3,5,7,9,1 1 and 14 d after cancer cell inoculation.The tibia was removed at 14 d after cancer cell inoculation in group S and at 7 and 14 d after cancer cell inoculation in group P for pathological and imaging examinations.The tumor cell growth and bony destruction were observed.The expression of ASIC3 in the DRG was determined by immunolluorescence.Results Pathological damage occurred at 14 d after cancer cell inoculation,bony destruction was observed obviously,ant cortical bone was missing in many places.Compared with group S,body weight at T3-7 and MWT al T2-7:were significantly decreaed,and the expression of ASIC3 was up-regulated at 14 d after cancer cell inoculation in group P(P ＜ 0.05).Conclusion Up-regulation of the expression of ASIC3 in the DRG is involved in the developntent and maiutenence ot bone cancer pain in rars.

OBJECTIVE: To summarize the relationship between Notch signaling pathway and cancer stem cells and researches on anticancer compounds targeting Notch ion channels to provide theoretical basis for developing new anticancer drugs. METHODS: The domestic and foreign literatures were summarized. RESULTS AND CONCLUSION: Notch signaling pathway may become a new target for anticancer drugs which are expected to overcome drug resistance and tumor recurrence.

objective To identify the three strains of pink-pigmented bacteria isolated from ticks.Methads 16S rDNA sequence analysis,16S rDNA similarity searching,bacterial morphological,physiological and biochemical tests and fatty acids analysis were used.Results The bacterial strains were pinkpigment,gram negative,strictly aerobic coccobacillus.They grow optimally at 37℃,while not in the presence of≥5% NaCl.The tests showed positive result for urease,D-glucose,citrate,UV absorption,and catalase.The predominant fatty acids were C16:0,C17:0,C18:1 ωgc and C19:0 cyc.Comparative 16S rDNA sequences analysis revealed that the strains were closely related to Roseomonas cervicalis and could reach up to 99.1% identity.Conclusion Based on phenotypic,biochemical and phylogenetic data,we propose these three isolates represent distinct species in genus Roseomonas,of which ticks may serve as a potential vector.

Due to its effect of systems regulation and promotion on body, Ginseng is always referred to be long-term used as a dietary supplement. But it was still unclear about its target of the tonic effects and also the side-effects long-term use may bring. Urine metabolomic method is suitable for long-term studies of pharmaco-dynamics, pharmacology and toxicology of traditional Chinese medicine because of its characteristics of non-invasive and monitoring the whole-body metabolism. This study was designed to detect the dynamic variation of rat urine metabolome along with a long-term administration of total ginsenosides using GC-TOF based metabolomic technology. Our result showed that either short-term or chronic administration of ginsenosides did not impact the rat urine metabolome significantly (as the PCA subgroup was not successful). By comparison, the short-term (1-3 w) dose of ginsenosides had the biggest metabolic influence including TCA cycle, catecholamines and neurotransmitter amino acids. Medium-term (6-10 w) dose had a gradually lower effect and long-term (27 w) dose almost had no effect. Our study indicates that both short and long-term administration of ginsenosides showed almost no obvious side-effect on the experimental animals.
Animals ; Drugs, Chinese Herbal ; metabolism ; Ginsenosides ; metabolism ; urine ; Male ; Metabolomics ; Panax ; metabolism ; Rats ; Rats, Wistar ; Time Factors

Objective To explain the physiological properties of serum leucine aminopeptidase (LAP) and discuss the different levels and clinical meaning of serum LAP during the second and the third trimester of gestation.Methods Rate turbidimetry was used to assay serum LAP activity of 175 pregnant women in the second trimester of gestation, among whom 162 were normal and 13 were intrahepatic cholestasis of pregnancy (ICP), and 302 pregnant women in the third trimester of gestation, among whom 215 were normal, 76 were ICP, 6 were pregnancy-induced hypertension syndrome and 5 were premature delivery, and 100 healthy or non-pregnant women.Results Serum LAP activity of pregnant women in the group of the second trimester of gestation was (140.43?64.39) U/L, in the group of the third trimester of the gestation was (234.72?93.53) U/L, and in control group was (72.62?15.31) U/L. The serum LAP activities of the two pregnant groups were much higher than that of control group (P

AIM:To investigate the influence of calorie restriction ( CR) on contractility and mitochondrial bi-osynthesis in different types of rat skeletal muscles .METHODS:CR rat model was set up by feeding 60%normal food in-take of control rat every day for 8 weeks.Soleus (SOL) and extensor digitorum longus (EDL) were isolated under anesthe-sia.The twitch tension, titanic tension and fatigue resistance of SOL and EDL in response to electrical stimulation were measured to reflect the contractile function of the muscles .The copy number ratio of mitochondrial gene cytochrome C oxi-dase subunit I ( COX I) to nuclear gene β-actin was determined to evaluate the mitochondrial biosynthesis .ATP content was measured to mirror mitochondrial function .RESULTS:Compared with control group , CR for 8 weeks significantly in-creased twitch tension and titanic tension of both SOL and EDL , but only improved fatigue resistance in SOL .Markedly in-crease in ATP content in both skeletal muscles by CR intervention was observed , especially in SOL .Although CR activated AMP-activated protein kinase (AMPK) in both 2 muscles, up-regulation of mitochondrial biosynthesis and transcription of mitochondrial regulatory genes peroxisome proliferator-activated receptor γcoactivator 1α( PGC-1α) and nuclear respirato-ry factor ( NRF) was only observed in SOL .CONCLUSION:CR for 8 weeks enhanced the contractility of both rat SOL and EDL in response to electrical stimulation , especially in SOL composed of slow-twitch fibers.The mechanisms may be related to the activation of AMPK and the promotion of mitochondrial biosynthesis in SOL .

Aim This study was aimed to explore the influence and mechanism of the long-term exercise on skeletal muscle contraction and mitochondrial biosyn-thesis in different muscle fibers.Methods Soleus (SOL)and extensor digitorum longus (EDL)were i-solated from SD male rats with platform running train-ing for eight weeks.The changes of contractility under different electrical stimulation were observed, mito-chondrial biosynthesis,including ATP content,mito-chondrial DNA,the gene expression of PGC-1αand NRF were also detected.Results Long-term endur-ance exercise can improve twitch tension and titanic tension of SOL and EDL ,but only enhanced the fa-tigue resistance in SOL.ATP contents were significant-ly increased in the two types of muscles,but mtDNA content,PGC-1αexpression and NRF translation were only obviously enhanced in SOL,in accompanied with an increase in p-AMPK/AMPK protein ratio.Conclu-sion Long-term endurance exercise increased skeletal muscle contractility and improved the anti-fatigue abili-ty in SOL,which may be associated with increase in mitochondrial biosynthesis via activated AMPK-PGC-1αaxis.