ObjectiveTo explore the effect of the calcium phosphate cement (CPC) /calcium polyphosphate fiber (CPPF) composites mixed with different proportion of minimal morselized bone on repair of bone defect in vivo. MethodsA total of 36 New Zealand white rabbits were completely randomly designed into A, B, C, D groups and their bilateral radial bone defect model was prepared. The minimal morselized bone (300-500 μm in diameter) was made from the iliac of those rats. The CPPF and CPC were evenly mixed into CPC/CPPF composites which were divided into four groups in accordance with the CPPF weight O, 10％, 30％ and 50％ in CPC/CPPF composite. The CPC/CPPF composites of the four groups was mixed with the minimal morselized bone with ratio of 6:4 and then the mixture was implanted the bone defect of the rabbits in four groups. The gross, X-ray and histological observations were done at four and eight weeks. The biomechanical test was performed at eight weeks. Results When CPPF occupies 30％ of the CPC/CPPF composite, the maximum compressive load and bending loads were better than those in the other groups ( P ＜ 0.05 ), when the histological observation showed the most tight link between the artificial composite and the bone interface and the closest similarity between material degradation rate and the ossification rate, with the best osteogenesis and the optimal ratio.ConclusionThe repair of bone defect can attain the optimal outcome through adding a certain ratio of minimal morselized bone into the CPC/CPPF to adjust the degradation rate of composites.

Objective: To explore the peri-operative application of GLP-1 analogue and insulin on myocardial perfusion and clinical prognosis in patients of acute ST segment elevation myocardial infarction (STEMI) with stress-induced hyperglycemia. Methods: Our research was a prospective single center randomized control study. A total of 114 consecutive STEMI patients received percutaneous coronary intervention (PCI) within 12h of onset were enrolled, the patients had no diabetes while blood glucose ≥11.1mmol/L at immediate admission. Based on random number table, the patients were divided into 2 groups: Observation group, the patients received GLP-1 analogue, n=59 and Control group, the patients received insulin, n=55. The post-operative myocardial perfusion, indicators of myocardial damage and cardiac function, myocardial infarct area (MIA) and myocardial salvage index (MSI) were compared between 2 groups. The patients were followed-up for 6 months to record the incidence of major adverse cardiovascular events (MACE). Results: At peri-operative period, compared with Control group, Observation group had decreased peak values of creatine kinase isoenzyme (CK-MB) and troponin T (cTnT), P<0.05. At 6 months post-operation, compared with Control group, Observation group showed increased myocardial perfusion and left ventricular ejection fraction (LVEF), P<0.05, reduced MIA (15±12) g vs (20±14) g, P<0.05 and 12% elevated MSI as (0.64±0.13) vs (0.56±0.12), P<0.001. The MACE incidence was similar between 2 groups, P=0.217. Conclusion: In STEMI patients with stress-induced hyperglycemia, peri-operative application of GLP-1 analogue may safely regulate blood glucose, improve cardiac perfusion and function, reduce MIA; while it had no influence on myocardial perfusion at peri-operative period and no impact on MACE occurrence at 6 months post-operation.

Electromagnetic Fields ; Magnetic Fields ; Microwaves ; adverse effects ; Television

Sixteen compounds have been isolated from the EtOAc fraction of 95% ethanolic extract of Sophora dunnii through silica gel, Sephadex LH-20 and semi-prerarative HPLC column chromatographies. Their structures were identified on the basis of NMR and MS spectra data as phaseollidin (1), L-maackiain (2), 2-(2',4'-dihidroxyphenyl)-5,6-methylenedioxy benzofuran (3), 8-demethyl-farrerol (4), liquiritigenin (5), genistein (6), 6-methylgenistein (7), 5-O-methyl genistein (8), 7,2',4'-trihydroxys-5-methoxy-isoflavanone (9), 7, 3', 4'-trihydroxy-isoflavanone (10), erythribyssin D (11), calycosin (12), trans-resveratrol (13), cis-resveratrol (14), stigmasterol (15), β-sitosterol (16). Among these, compounds 1-14 and 16 were isolated from this plant for the first time.
Chemical Fractionation ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Molecular Structure ; Sophora ; chemistry ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVETo study the characteristics of thyroglossal tract cyst epidemiology and summarize how to improve the operation therapeutic effect.

METHODSThe clinic appearance, the pathological characteristics and the therapeutic effect of the 60 thyroglossal tract cyst cases were analyzed.

RESULTSThyroglossal tract cyst mostly occurred in children and teenagers. The incidence of female patients was more than that of male patients. Most of thyroglossal tract cyst located in the middle line of the neck and were explored tubular-objects and fibroropes. The histopathological feature was variform.

CONCLUSIONThe clinical appearance and pathology characteristic of thyroglossal tract cyst are variform. Thyroglossal tract cyst may be recurred easily if it is not operated well.

Adolescent ; Child ; Female ; Humans ; Male ; Thyroglossal Cyst

Objective To explore the clinical manifestations and endoscopic characteristics of eosinophilic gastroenteritis(EG) with massive ascites as the initial symptom and accumulate the experiences of EG for early diagnosis and treatment.Methods Clinical characteristics,laboratory examination,endoscopic features and treatment methods of 6 cases of pediatric patients with EG from Nanjing Children's Hospital Affiliated to Nanjing Medical University from May 2009 to Dec.2012 were analyzed.Results The main clinical manifestations of 6 cases with EG serous type were abdominal distension,ascites.Peripheral blood eosinophil (EOS) counts was increased significantly (5.1 × 109/L-20.6 × 109/L).A large number of EOS were found in ascitic fluid of 6 patients.Endoscopic manifestations was gastric mucosal hyperemia and edema in the all of 6 patients,and furthermore,gastric mucosa erosion in 2 cases,esophagus mucosa rough edema in 1 case,duodenal mucosal hyperemia and edema in 3 cases,duodenal nodular hyperplasia in 1 case.The mucosa pathological examination of 6 cases showed eosinophilia.Symptoms in patients were relieved after avoiding suspicious food and oral corticosteroids treatment after 1 week.Conclusions EG serous type patients in children are massive ascites as the initial symptom.Ascitic fluid and peripheral blood EOS counts are increased significantly and endoscopic feature is nonspecific,mucosal hyperemia,edema,erosions,nodular hyperplasia.EOS infiltration is observed in the gastrointestinal mucosa propria by multipoint biopsy.Therapeutic effect of diet therapy and the treatment of glucocorticoid is good.

BACKGROUNDChronic hepatic inflammation is characterized by the accumulation of lymphocytes as a consequence of increased recruitment from the blood and retention within the tissue at sites of infection. CXC chemokine ligand 16 (CXCL16) mRNA has been detected in both inflamed and normal liver tissues and is strongly upregulated in the injured liver tissues in a murine model. The aim of this study was to investigate the effect of cefodizime on CXCL16 mRNA of liver tissues in mice with immunological hepatic injury.

METHODSThe murine model of immunological hepatic injury was induced by Bacillus Calmette Guerin and Lipoposaccharide. The mice with immunological hepatic injury were randomly assigned to the model group, the cefodizime group and the ceftriaxone group. The three groups were continuously given agents for seven days and CXCL16 mRNA of liver tissue was determined and contrasted with the control group treated by normal saline. Reverse transcription-polymerase chain reaction was used to assay CXCL16 mRNA levels in liver tissues.

RESULTSThe expressions of CXCL16 mRNA were significantly higher in the model group and the ceftriaxone group than in the control group and the cefodizime group (P < 0.05), indicating the mice in the model group and the ceftriaxone group were immunodeficient. There was no statistical difference in the expressions of CXCL16 mRNA between the control group and the cefodizime group. Similarly, no statistical difference in the expressions of CXCL16 mRNA between the model group and the ceftriaxone group was detected (P > 0.05).

CONCLUSIONCefodizime effectively reduces the infiltration of lymphocytes into liver tissues and alleviates the liver damage by decreasing CXCL16 mRNA in liver tissues in mice with immunological hepatic injury.

Animals ; Cefotaxime ; analogs & derivatives ; therapeutic use ; Chemokine CXCL16 ; Chemokine CXCL6 ; genetics ; Chemokines ; Lipopolysaccharides ; toxicity ; Liver ; drug effects ; metabolism ; microbiology ; Mice ; Mycobacterium bovis ; physiology ; RNA, Messenger ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

Objective To investigate the effect of urate-lowering therapy on renal function in chronic kidney disease (CKD) stages 2-5 patients with hyperuricemia (HUA).Methods A total of 132 patients of CKD stages 2-5 with HUA between July 2016 and December 2017 in Department of Nephrology of the Second Affiliated Hospital of Anhui Medical University were prospectively and self-controlled analyzed.Serum uric acid (SUA),estimated glomerular filtration rate (eGFR) and other clinical parameters were measured at baseline and after 1-6 months treatment.The patients were divided into group A (CKD stages 2-3a) and group B (CKD stages 3b-5) on the baseline value of eGFR.The changes of SUA and eGFR before and after treatment were compared.According to the level of SUA after 6 months treatment,patients were divided into attainment group (SUA ＜ 360 μmol/L) and nonattainment group (SUA ≥ 360 μmol/L).The difference of renal function in pre-treatment and post-treatment was compared.Multiple stepwise linear regression was used to analyze the relationship among the change of eGFR after receiving 6 months' treatment (deGFR) and SUA level,baseline eGFR and other indexes.Results After 1,3,6 months treatment,the average levels of SUA,Scr and urea nitrogen of all patients were decreased significantly while eGFR value was increased significantly (all P ＜ 0.050) than those in pre-treatment period.After six-month-therapy,proteinuria and hematuria were improved significantly in all patients (P ＜ 0.001,P=0.001).Compared with pre-treatment period,both the SUA levels of group A and group B were declined significantly while eGFR had a significant rise after treatment (P ＜ 0.001).The change of eGFR post-treatment in group A was significantly higher than that of group B [(13.64±15.35) vs (8.97±9.79) ml· min-1· (1.73 m2)-1,P=0.044].At 6 months after treatment,the eGFR value increased markedly in both attainment group and nonattainment group compared with pre-treatment period (P ＜ 0.001).After six-month-therapy,the eGFR value in attainment group was increased more obviously than that of nonattainment group [(13.96 ± 14.64) vs (8.03±9.69) ml· min-1· (1.73 m2)-1,P=0.021].Multiple stepwise linear regression analysis showed that the baseline eGFR value was an influencing factor of deGFR (b=0.161,P=0.020).Conclusions The renal function of CKD stages 2-5 patients with HUA can be significantly improved by urate-lowering therapy,which can effectively reduce proteinuria and hematuria.

OBJECTIVETo investigate the associations of polymorphisms of metabolic enzyme genes with urinary 1-hydroxypyrene levels in coke oven workers.

METHODSOne hundred and forty-eight workers from a coke oven plant and 69 controls without occupational PAHs exposure were selected in this study. Urinary 1-hydroxypyrene was detected by high performance liquid chromatography with florescence detector. The genotypes at I462V site in exon 7 of CYP1A1 gene, GSTM1, GSTT1, I105V site in GSTP1gene, Pst1 and Dra1 sites in CYP2E1 gene, P187S site in NQO1 gene, Kpn1, BamH1 and Taq1 sites in NAT2 gene, and H113Y, R139H sites in mEH gene were determined by PCR-based methods. Personal information including occupational exposure history, age, sex, smoking and drinking status was collected by the questionnaire.

RESULTSThe level of urinary 1-hydroxypyrene in coke oven workers [(5.61 +/- 1.04) mol/mol Cr] was higher than that in control [(0.74 +/- 0.32) micro mol/mol Cr]. After adjusting external occupational exposure category and smoking, coke oven workers with variant homozygotes at H113Y site of mEH gene had significantly higher urinary 1-hydroxypyrene concentrations than those with heterozygotes, and wild homozygotes (6.41 +/- 1.09 vs. 6.24 +/- 1.08, and 4.62 +/- 0.95 micro mol/mol Cr, P < 0.05), and gene-gene interaction was found between CYP1A1 and mEH.

CONCLUSIONGenetic polymorphism of mEH gene could be a susceptible biomarker in coke oven workers which was involved in the individual susceptibility on metabolism of PAHs.

Coke ; adverse effects ; Cytochrome P-450 CYP1A1 ; genetics ; DNA Damage ; genetics ; Epoxide Hydrolases ; genetics ; Genetic Predisposition to Disease ; genetics ; Glutathione Transferase ; genetics ; Humans ; Male ; Occupational Exposure ; Polycyclic Aromatic Hydrocarbons ; poisoning ; Polymorphism, Genetic ; Pyrenes ; analysis ; metabolism

Objective To improve the early diagnosis of congenital heart disease (CHD), investigate the awareness, screening knowledge and screening ability of CHD among health care providers in the rural areas of Yunnan province and discover an effective way to improve the related knowledge and skills of CHD screening. Methods From 2015 September to 2017 April, we set up charity mobile schools and chose eight areas as the investigating and training sites. We designed two questionnaires, and adopted the theoretical training as the main method combined with the training of clinical skills. We investigated and trained a total of 1022 medical staff. The training content include the awareness of CHD,the knowledge and skills of CHD screening. We also evaluated the outcomes of the training. Results A total of 2044 questionnaires were collected. After training, the number of objects which would screen CHD in future increased, and the cognition of the incidence and common clinical manifestations of CHD, Eisenmanger's syndrome,cardiac auscultation, pulse oximetry and the related knowledge of CHD were also improved; 563 took the test on practical skills of CHD detection. The correct rate of auscultation, period of murmurs and characteristics of murmurs was 98.22%(553),30.55%(172) and 28.60%(161). The correct rate of murmurs in ventricular septal defect,atrial septal defect and patent ductus arteriosus was 45.47%(256), 39.79 (224) and 50.80%(286) respectively. Online training was advised by 244 trainees. Increasing investment in congenital heart disease screening was suggested by 652 trainees. Conclusions The awareness of CHD screening in grassroots medical workers of Yunnan province is insufficient. It is an effective way to establish charity mobile school and to train the grassroots medical staff with the theory and practical knowledge to improve the awareness,screening knowledge and screening skills of CHD. The next step suggests that we can improve the early diagnosis of congenital heart disease (CHD).