OBJECTIVETo investigate the effects of epigallocatechin gallate (EGCG)against exercise-induced fatigue in mice.

METHODSTotal 120 mice were randomly divided into three groups and tested separately. For each test, there were 30 mice subdivided into high dose (50 mg/kg . d EGCG) and low dose (10 mg/kg . d EGCG) groups as well as saline control group(1 ml/kg . d) with 10 in each. Burden swimming, running wheel endurance, stick climbing and hypoxia tolerance exercise were used to establish fatigue mice training model in three groups. And intraperitoneal injection with different doses of EGCG per day for consecutively 28 days and the mice in the control group were treated with normal saline. After the last each test, the blood lactic acid (BLA), blood urea nitrogen (BUN), blood lactate dehydrogenase (LDH), muscle glycogen (MG) and liver glycogen (LG) of each group of mice were determined.

RESULTSEGCG treatment groups(B and C)revealed a prolonged the mice survival time of burden swimming test, hypoxia tolerance, running wheel time and the ability of stick climbing(P < 0.05 or P <0.01), and increased LDH activity and MG and LG contents, reduced contents of BLA and BUN. High dose group had an obviously increase effect than lower dose group(P <0.05).

CONCLUSIONEGCG has significant effects against exercise-induced fatigue in mice.

Animals ; Blood Urea Nitrogen ; Catechin ; analogs & derivatives ; pharmacology ; Exercise Tolerance ; Fatigue ; drug therapy ; Glycogen ; metabolism ; L-Lactate Dehydrogenase ; blood ; Mice ; Physical Conditioning, Animal

Objective To explore the clinical application of adaptive support ventilation (ASV) in elderly patients with acute respiratory failure.Methods A total of 46 mechanically ventilated patients aged over 65 years with acute respiratory failure admitted from January 2013 to June 2015 were enrolled.Comparison between the ASV mode and synchronized intermittent mandatory ventilation (SIMV) mode was carried out in respects of the impacts of both modes on respiratory mechanics, hemodynamics, oxygen availability and comfort rate.Results Difference between ASV and SIMV in respiratory rate was [(20.84 ±4.04) vs.(24.50 ±4.60) cycles/min, t =4.04, P ＜0.05], in inspiratory resistance was [(13.24 ±4.76) vs.(16.54±5.25) cmH2O/ (L·s), t=3.16, P＜0.05], in mean airway pressure was [(13.58±2.58) vs.(16.63 ±1.57) mmHg, t =6.84, P＜0.05], in peak airway pressure was [(25.96 ± 3.69) vs.(27.87 ± 2.45) mmHg, t =2.92, P ＜ 0.05], and tidal volume was [(378.41 ± 85.61) vs.(341.52 ± 86.84) mL, t =2.05, P ＜ 0.05], and comfort rate of patients was increased in ASV mode.There were no statistically significant differences in arterial oxygen partial pressure, carbon dioxide partial pressure, lactate, heart rate, mean arterial pressure and central venous pressure between the two modes (PP ＞ 0.05).Conclusions Compared with the synchronized intermittent mandatory ventilation mode, the adaptive support ventilation mode can improve the respiratory mechanics and can increase the comfort rate in the elderly patients with mechanical ventilation.

Objective To screen proteins binding with interferon?(IFN?)from human hepatic cDNA libraty by yeast-two hybrid technique.Methods The IFN?gene was amplified by polymerase chain reaction(PCR)and constructed into pGBKT7 vector as the bait plasmid in yeast-two hybrid system3,pGBKT7-IFN?was then transfected into yeast AH109.The transfected yeast were mated with yeast Y187 containing liver cDNA library plasmid in 2?YPDA medium.Diploid yeast was plated on synthetic dropout nutrient medium(SD/-Trp Leu-His-Ade)and synthetic dropout nutrient medium(SD/-Trp-Leu-His-Ade)containing X-?-gal for selecting.After plasmid extracting and en- zyme cutting analysis,the blue colonies were performed sequence analysis,the results were analyzed by bioinformatics.Results IFN?gene was successfully cloned and expressed in yeast cells.Thirty- four positive colonies were obtained using yeast-two hybrid technique.After sequence analysis,eight clones were found may have a binding effect with IFN protein.Conclusions IFN?genes was success- ful cloned and eight proteins that could bind with IFN?protein were also screened.

Objective To observe the anticoagulant effect of low molecular weight heparin on induced hemodialysis in patients with acute renal failure.Method One hundred and eight patients with acute renal failure treated with induced hemodialysis were randomly divided into low molecular weight heparin(LMWH)group and unfractionated heparin(UFH)group.A bolus disc of UFH was given at first and then maintained by continuous infusion in UFH group,whereas a single bolus dose of LMWH with 2000AFXa IU to 4000AFXa IU in LMWH group.Results Anticoagulant effect between LMWH and UFH did not show significant discrepancy during induced hemodialysis.The bleeding from internal jugular vein catheter increased in the UFH group much more than that in the UFH group was significantly higher than that in the LMWH group.Anti-FXa blood levels were significantly higher in LMWH group than in UFH group.Conclusions LMWH has minor influence on aPTT and TT,while its anticoagulation effect approximates to that of UFH.LMWH represents a realistic alternative agent UFH in acute renal failure induced hemodialysis.

RNA has received more attention in the field of forensic medicine and the development of the new biological markers based on RNA shows great significance in the analysis of complex cases. circular RNA (circRNA) is a kind of non-coding RNA which is widely reported recently. Although the regulatory mechanisms of generation and expression are not fully clear, the existing research indicates that circRNA has important biological functions. CircRNA has a cell-type-specific expression with great stability and a high expression level, which makes it meaningful in forensic applications potentially. In this paper, the research progress, the generation and regulation of circRNA as well as its biological characteristics and functions are summarized, which will provide references for related studies and forensic applications.
Forensic Sciences ; Humans ; RNA ; RNA, Circular

China ; epidemiology ; Diarrhea ; epidemiology ; virology ; Disease Outbreaks ; Humans ; Norovirus

Adult ; Female ; Humans ; Kidney ; pathology ; Kidney Neoplasms ; pathology

Calcifications in mammograms are important signs of early breast cancer. Its accurate detection can provide an important basis for diagnosis and treatment of the breast cancer. As the rapid development of medical imaging technology, computer aided diagnosis (CAD) of calcifications by means of computers and artificial intelligence has improved the efficiency and accuracy of diagnosis. However, the secretive nature of calcifications reduce the credibility of diagnosis. Therefore, CAD techniques need to be improved. In this paper, the CAD of calcification and the national and international status of algorithms are described, and the problems in automatic detection and classification of calcifications are also summarized.
Breast Neoplasms ; diagnostic imaging ; pathology ; Calcinosis ; diagnostic imaging ; Diagnosis, Computer-Assisted ; methods ; Female ; Humans ; Mammography ; methods ; Radiographic Image Interpretation, Computer-Assisted ; methods

Gastroenterology ; Periodicals as Topic ; statistics & numerical data

Objective To evaluate the diagnostic value of 64 multidetector-row CT angiography for internal carotid artery(ICA)stenosis and the application in the follow-up of carotid endarterectomy and percutaneous transluminal stenting.Methods Forty transient ischemie attack(TIA)patients with interpretable CTA and DSA of the cervical carotid arteries were selected from May 2005 to December 2005. This yielded a total of 80 vessels.The CTA curved planar reformations(CPR)and DSA images referenced to the distal cervical internal carotid were graded by two senior neuroradiologists blindly,according to the North American Symptomatic Carotid Endarterectomy Trial(NASCET)guidelines.The paired-t test was used to verify the statistical significant difference between pre-operating and post-operating of carotid endarterectomy or percutaneous transluminal stenting in measuring the vascular diameter and area of cross section using CTA.Results When the 70% stenosis was used as the cut-off value,the seasitivity,specificity,negative predictive value,and the positive predicting value were 97%,95%,95%,and 98%,respectively.There was statistically significant difference in measuring the vascular diameter(P