Objective To investigate the therapeutic effect of frozen-thawed murine islets which were transplanted into diabetic rats after cultured with hyperbaric oxygenated rotary cell culture system (HORCCS). Methods The purified rat islets were divided into two groups: A. In vitro experiment groups (IvEG) : The rat islets in each subgroup were cultured in HORCCS or common medium for 30 days, then evaluated for the intracellular DNA and insulin contents of islets, and the viability and insulin secreting level of islets. B. Islet transplantation experimental groups (TxEG) : The frozen-thawed islets were cultured in HORCCS or common medium for 7 days, and then transplanted into the recipients. We observed the blood glucose level (BGL) and insulin secreting level in the recipients as well as the uhrastructure change of islets in TxEG. Results The viability and insulin secreting level of islets cultured with HORCCS at 14th day were much higher than those cultured with common medium (P <0.05). The blood glucose level in recipients transplanted with islets cultured with HORCCS recovered to normal value at the 2nd week and lasted for 8 weeks. All these recipients maintained the normal glucose tolerance curve. Electronic microscopy found microchannel outlets on the surface of the frozen-thawed islets cultured with HORCCS. Conclusions Frozen-thawed islets cultured with HORCCS could establish nutrient transmission microchannels, which were not only capable of oxygen and nutrients transmission, but also improving cryopreservation solution to diffuse inside the islet cells evenly and uniformly. So this method not only lessens islet damage from cryopreservation, but also improves the effect of transplantation.

Department of rheumatology and immunology is a compulsory training department for the standardization training of the residents. However, it has been noted that the residents often ignore the importance of rheumatology. They are usually short of communication skill with the patients and theoretical knowledge. They often have high error rate in the clinical work and training their clini-cal skills and thinking ability is very difficult in the actual work. All of these problems may decrease the training quality and make the training a mere formality. Therefore, in order to carefully implement resident standardization training, a set of specific training programs has been developed, involving in theory of knowledge, practice standardization and comprehensive quality training. With these training programs, the quality and efficiency of the residents' training has greatly improved.

Objective To investigate the relationship between cognitive function and emotional status in functional constipation patients.Methods Thirty-five functional constipation patients (the functional constipation group) and 24 healthy controls (the HCs) were enrolled in an event-related potential (ERP),behavior and electroeneephalogram study while performing an oddball auditory task.Response time,accuracy,latency and P300 amplitude were compared between the two groups.The Hamilton depression rating scale (HAMD-17),Hamilton anxiety scale (HAMA),symptom check list-90 (SCL-90) and Eysenck personality questionnaire (EPQ) were administered prior to the oddball task.Results The average HAMD-17,HAM A and SCL-90 (the somatization,obsessive-compulsive disorder,depression,anxiety and psychosis dimensions) scores of the functional constipation group differed significantly from those of the HCs.The intro-extraversion and neurosis dimensions of the EPQ were also significantly different.There was no significant difference in response time or latency between the two groups.The ERP results showed that the P300 amplitudes at the F3 and F7 sites were significantly different between the functional constipation group and the HCs.But there was no significant difference in P300 latencies at F3 or F7 between the two groups.Conclusions The findings suggest that patients with functional constipation are more susceptible to depression and anxiety,as well as somatization,obsessive-compulsive tendencies and other neurotic personality characteristics.Patients may employ psychological defense mechanisms to avoid the depression and anxiety.The ERP results imply there may be the implicit cognitive dysfunction with emotion in patients with functional constipation.

Background Many methods are widely studied to improve the therapeutic effect of trabeculectomy for glaucoma,and the clinical effectiveness of the amniotic membrane application during trabeculectomy is one of the research hotspots.Objective This study was to evaluate the efficacy and safety between trabeculectomy with (TE-AMT) and without amniotic membrane transplantation (TE-noAMT) for treating glaucoma.Methods Articles published from 1965 to December 2010 were searched from The Cochrane Library,PubMed,EMBASE,CNKI,Chinese Biomedicine Database,internet by computer,and manual search then was performed according to the predetermined strategy.Randomized controlled trials (RCT) on TE-AMT and TE-noAMT were included.The quality of included articles were scored based on Jadad table,and the relative parameters and information were extracted,including author,design of the trials,country,number of eyes and patients,gender,follow-up duration,age,classification of glaucoma,baseline IOP and loss rate.The main analysis indicators were the percentage of IOP reduction,completely operative successful rate,qualified success rate and adverse events.The pooled estimates were carried out with RevMan version 5.0 software.Results Nineteen RCTs documents were reviewed by meta-analysis with the Jaded scores ≥3 in 2 papers and ＜3 in 17 papers.Total 977 eyes of 818 patients were included.The weighted mean differences (WMD) of the percentage of IOP from baseline were (WMD =8.47％,95％ CI:5.20-11.75) at 6 months and (WMD=9.37％,95％ CI:4.97-13.77) at 12 months postoperatively.Relative risk (RR) of complete success rate and qualified success rate at postoperative 6 months were (1.40,95％ CI:1.19-1.65) and (0.47,95％ CI:0.22-1.00),respectively.RR values of adverse event such as shallow anterior chamber,hyphema,hypotony and choroidal detachment,failed filtering blebs at 6,12 months were 0.51 (95 ％ CI:0.30-0.85),0.43 (95％ CI:0.20-0.92),0.51(95％CI:0.26-1.00) and 0.57(95％CI:0.14-2.31),0.31(95％CI:0.20-0.47),0.31 (95％ CI:0.17-0.55),respectively.Conclusions TE-AMT appears to have better efficacy in lowering IOP,increasing complete success rate and reducing adverse event I in comparison with TE-noAMT.

This study reported the analysis of plasma phospholipid metabolism of the rats and the pathological biomarkers between the type 2 diabetes model control group (MC) and the normal control group (NC). SD rats were randomly divided into 2 groups: NC and MC. To investigate state of plasma metabolite profiling in normal body, type 2 diabetes mellitus (T2DM) model group using UPLC-Q-TOF/MS which was used as analysis tool in this research. The compounds were identified by UPLC-Q-TOF/MS based on MS/MS fragment ions information, element composition in MassLynx 4.1 and the Lipid Maps database. The sign of two groups of samples in specific markers for screening was through a software package in R software (BioMark software). The results show that the pathological markers were mainly phosphatidylcholine (PC) and triglycerides (TG); the 2-acyl PC in the MC group was less more obviously than that in the NC group; high carbon number and high degree of unsaturation of the TG was reduced under the condition of type 2 diabetes. In the state of type 2 diabetes, metabolic changes occurred in rat plasma phospholipids obviously, which had a close relationship with the occurrence and development of T2DM.
Animals ; Biomarkers ; blood ; Chromatography, High Pressure Liquid ; Diabetes Mellitus, Experimental ; blood ; Diabetes Mellitus, Type 2 ; blood ; Metabolome ; Phospholipids ; blood ; Rats ; Rats, Sprague-Dawley ; Tandem Mass Spectrometry

Objective:To explore the clinical characteristics of various types of severe drug eruption and common sensitized drugs,and to provide clinical references for reducing the incidence of severe drug eruption.Methods:The clinical data regarding 126 cases of severe drug eruption were analyzed retrospectively from June 2009 to May 2017 in Xiangya Hospital,Central South University.Results:In the 126 cases of severe drug eruption,the distribution of men and women ratio was 1∶1.38.The length of stay was (12.7±9.8) d.The most common type was Steven-Johnson syndrome;the most dangerous type was drug-induced bullosa epidermolysis,The most common sensitized drug category in these patients was antibiotics;the most common single sensitizing drug was carbamazepine,following by allopurinol.Conclusion:Severe drug eruption occurs mostly in young and middle-aged people.Steven-Johnson syndrome is the most common type;drug hypersensitive syndrome has the longest length of hospital course.Mortality rate of drug-induced bullosa epidermolysis is the highest.Timely stop using of allergens,early using glucocorticoids,and timely combination of non-glucocorticoids treatment (such as intravenous immunogloblin,plasma exchange and hemodialysis),can improve the efficacy and reduce the complications and mortality.

To control the quality of Humulus scandens, the quality standard was established in this study. According to the method recorded in the Appendix of Chinese Pharmacopoeia (2010 Edition) , the water and ash inspections were carried out. The component luteoloside and cosmosiin in Humulus scandens were identified and assayed by TLC and HPLC. The results showed a strong characteristics microscopic of Humulus scandens, and trichoromethane-methanol-formic acid (10: 3: 0. 3) as the mobile phase of TLC, the spots at 365 nm with a UV lamp was clear. The 16 batches of samples were analyzed by HPLC with a gradient elution of acetonitrile and phosphate solution (0.2%) at a flow rate of 1.0 mL · min(-1) and detected at 350 nm. The content of luteoloside was 0.015%- 0.651% (average 0.148%); the content of cosmosiin was 0.003%-0.118% (average 0.036%). The linear calibration curve of luteoloside and cosmosiin was acquired in the ranges of 0.011-0.364 g · L(-1) (r = 1.000 0) and 0.003-0.096 g · L(-1) (r = 1.000 0), respectively. The average recovery was 100.5% and 98.5%, respectively. The methods are convenient and reliable, which can be ap- plied for quality assessment of Humulus scandens.
China ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; standards ; Humulus ; anatomy & histology ; chemistry ; Quality Control

Objective To study on the expression and clinical significance of programmed death ligant 1 (PD-1) in the development of colorectal cancer.Methods Flow cytometry (FCM) was used to detect and analyse the positive expression rate of PD-1 on CD3+ T cells in peripheral blood samples of 88 colorectal cancer patients and 74 healthy volunteers,and in sixpairs of tissue specimens (colorectal cancer tumor and adjacent normal tissues).Colon cancer tumor-bearing mice models were constructed by subcutaneous implantation of murine colon cancer cell line CT26,and the changes of positive expression rate of PD-1 on CD3+ T cells in spleens and transplanted tumor tissues were also detected by FCM in different time points during five,eight,11,14,17,20 days after the model was constructed.Finally,the experimental results were analyzed by t test or variance analysis.Results The positive expression rate of PD-1 on CD3+ T cells in peripheral blood of colorectal cancer patients was significantly higher than that in healthy volunteers ((29.25 ± 9.37) ％ vs (19.35 ± 7.37) ％,t =7.375,P＜ 0.01),and the positive expression rates were significantly increased in colorectal cancer patients with lower degree of differentiation,lymph node metastasis and higher Duke's stage.The positive expression rate of PD-1 on CD3+T cells was significantly higher in colorectal cancer tissues compared to adjacent normal tissues ((52.38±12.28)％ vs (24.72±4.78)％,t=5.143,P＜0.01).In the colon cancer tumor-bearing mice models,along with the growth of transplanted tumors,PD-1 positive expression rates on the CD3+T cells of tumor-bearing mice spleens and transplanted tumors showed a gradually rising tendency.From the eighth day to the 20th day after subcutaneous transplanted colon cancer cells,the average positive expression rate of PD-1 on the CD3+T cells of tumor-bearing mice spleens rose from (52.83±6.17)％ to (77.30± 6.84) ％,and the average positive expression rate of transplanted tumors rose from (60.43 ± 2.77)％ to (90.47±4.31) ％.Conclusion There is a correlation between the expression of PD-1 on mature T cell surface and the development of colorectal cancer,and the high specific expression of PD-1 may promote the invasion and metastasis of colorectal cancer.

Objective To evaluate the effect of the pulmonary stretch reflex on the lung injury in acute respiratory distress syndrome (ARDS). Method ARDS models of rabbits were induced by intratracheal infusion hydrochloric acid and ventilated with neurally adjusted ventilatory assist (NAVA) with a tidal volume ( VT) of 6 mL/kg and the electrical activity of diaphragm ( Eadi)-determined PEEP level. The rabbits were randomly ( random number) divided into two groups: ( 1 ) sham operation (Sham) group ( n = 5 ),(2) bilateral vagotom (VAG) group( n = 5 ). Gas exchange and pulmonary mechanics were determined at baseline, after lung injury and ventilation 1, 2, 3 h respectively. Indices about pulmonary permeability,pathological changes and inflammatory response were also measured. Results Compared with Sham group,the PaO2/FiO2in VAG group decreased significantly at ventilation 2 h, 3 h (P ＜0.05). There was no significant difference on PaCO2 between Sham and VAG group (P ＞ 0.05 ), and VAG group had the higher VT,peak pressure ( Ppeak), mean pressure (Pm) compared with Sham group at the time point of ventilation 1 h, 2 h, 3 h (P＜0.05). Compared with Sham group, the dead space fraction (VD/VT) and the respiratory system elastance (Ers) in VAG group increased (P ＜ 0.05 ) and the static pulmonary compliance (Cst)decreased markedly (P ＜ 0.05 ) after 3 h ventilation. The wet/dry weight (W/D), lung injury score, tumor necrosis factor-α ( TNF-α), interleukin-8 ( IL-8 ), myeloperoxidase ( M PO ) and malondialdehyde ( M DA )in VAG group elevated significantly when compared with Sham group ( P ＜ 0.05 ). Conclusions The lung injury in ARDS was aggravated after bilateral vagotomy, which demonstrated that the pulmonary stretch reflex may have the lung protective effect.

Objective To study the influence of periacetabular muscle contraction on acetabular] fractures.Methods Twenty intact adult cadaveric pelvis(40 hip joints)treated antiseptically with bilat- eral 1/2 femoral shafts were selected and divided randomly into two groups(20 hip joints in each group). Then,the specimens were trimmed to fit the RMT-150B rock mechanics measuring system and the special in- creasing pressure system.After pressure of 3 500 N was pressed to the control group and pressure of 4500 N to the experimental group,acetabular fracture model was made by beatening with special striking machine,when striking force was recorded.Results We made forty aeetabular fracture models from 40 cadaveric hips. Pearson correlation coefficient of pressing force and striking force was -0.923(P＜0.01).The striking force of the control group and the experimental group was 445-550 N and 290-400 N,respectively(t= 14.727,P＜0.01).Conclusion The increase of contraction force of the periaeetabular muscles can decrease aeetabular stress and strain,influence the result of violent injury and play a vital role in inducing acetabular fractures.