Objective To explore the relationships of serum leptin(LP),tumor necrosis factor-?(TNF-?)and insulin resistance in simple obesity children.Methods Forty-seven children with simple obesity were divided into two groups: high insulin group(HIG) and normal insulin group(NIG) according to the levels of fasting state of serum insulin and glucose.The fasting state of serum insulin(FINS),LP,TNF-? and fasting blood glucose(FBG) were measured.The relationships of LP,TNF-? and insulin resistance index(HOMA-IR) were also analyzed.Results 1.The BMI,waist,hip,waist hip ratio(WHR),LP,TNF-?,HOMA-IR were obviously higher in the HIG than those in the NIG and NCG groups(Pa0.05).3.In the HIG group,the FINS was positively correlated to LP,TNF-? and HOMA-IR(r=0.560,0.413,0.864 P

OBJECTIVETo investigate the effect of preoperative nutritional support in the management of patients with chronic radiation enteritis (CRE) with intestinal obstruction undergoing resectional surgery.

METHODSClinical data of 158 CRE patients undergoing diseased bowel resection from 2001 to 2011 were analyzed retrospectively. A total of 130 patients received preoperative nutritional support, including 28 patients with enteral nutrition support, 60 patients with total parenteral nutrition support, and 42 patients with combined nutritional support. The nutritional parameters, procedures, operation-related complications, and postoperative hospital stay were recorded.

RESULTSAfter aggressive nutritional support in 130 patients, patients nutritional index, such as serum prealbumin, transferrin, serum albumin improved significantly preoperatively, while the change of body mass index and hemoglobin was not significant. Compared to those without preoperative nutritional support, those who received preoperative nutritional support had lower stoma rate (31.5% vs. 53.6%, P=0.027), less postoperative infection rate (13.8% vs. 32.1%, P=0.019), shorter postoperative hospital stay [(14.1±7.3) d vs. (18.8±15.8) d, P=0.013). Enteral nutrition group had less postoperative infection rate (7.1% vs. 21.7%, P=0.017), lower stoma rate (28.6% vs. 48.3%, P=0.02), and shorter postoperative hospital stay [(15.5±9.6) d vs. (21.7±19.0) d, P=0.025) as compared to total parenteral nutrition group.

CONCLUSIONSPreoperative nutritional support can decrease the stoma rate, postoperative infection rate, and shorten hospital stay in CRE patients complicated with intestinal obstruction. If tolerated, enteral nutrition support should be chosen.

Adult ; Aged ; Aged, 80 and over ; Chronic Disease ; Enteritis ; etiology ; surgery ; Female ; Humans ; Intestinal Obstruction ; complications ; surgery ; Male ; Middle Aged ; Nutritional Support ; methods ; Preoperative Care ; Radiation Injuries ; complications ; Retrospective Studies ; Treatment Outcome ; Young Adult

OBJECTIVETo develop an simple and sensitive method for detecting anti-coronavirus IgG antibodies in bat sera based on enzyme-linked immunosorbent assay (ELISA).

METHODSA commercial ELISA kit for detecting SARS-CoV antibody was modified for detecting coronavirus antibodies in bat serum samples. The second antibody in the kit was replaced with horseradish peroxidase-conjugated protein-A (HRP-SPA) based on the characteristics of binding between Staphylococcus aureus protein A (SPA) and mammal IgG Fc fragment. The sera of 55 fulvous fruit bats (Rousettus dasymallus) were tested using the SPA-ELISA.

RESULTSThe test results of the positive and negative controls in the kit and the serum samples from convalescent ;patient were consistent with expectation. Coronavirus antibody was detected in 2 out of the 55 bat serum samples. Serum neutralization test confirmed the validity of the SPA-ELISA method.

CONCLUSIONThis SPA-ELISA method is applicable for detecting coronavirus antibody in bat sera.

Animals ; Antibodies, Viral ; blood ; Chiroptera ; virology ; Coronavirus ; immunology ; isolation & purification ; Enzyme-Linked Immunosorbent Assay ; methods ; Immunoglobulin G ; blood

OBJECTIVETo investigate whether intrapericardial urokinase irrigation along with pericardiocentesis could prevent pericardial constriction in patients with infectious exudative pericarditis.

METHODSA total of 94 patients diagnosed as infectious exudative pericarditis (34 patients with purulent pericarditis and 60 with tuberculous pericarditis, the disease courses of all patients were less than 1 month), 44 males and 50 females, aged from 9 to 66 years (mean 45.4 +/- 14.7 years), were consecutively recruited from 1993 to 2002. All individuals were randomly given either intrapericardial urokinase along with conventional treatment in study group, or conventional treatment alone (including pericardiocentesis and drainage) in control group. The dosage of urokinase ranged from 200000 to 600000 U (mean 320000 +/- 70000 U). The immediate effects were detected by pericardiography with sterilized air and diatrizoate meglumine as contrast media. The long-term investigation depended on the telephonic survey and echocardiographic examination. The duration of following-up ranged from 8 to 120 months (mean 56.8 +/- 29.0 months).

RESULTSPercutaneous intrapericardial urokinase irrigation promoted complete drainage of pericardial effusion, significantly reduced the thickness of pericardium (from 3.1 +/- 1.6 mm to 1.6 +/- 1.0 mm in study group, P < 0.001; from 3.4 +/- 1.6 mm to 3.2 +/- 1.8 mm in control group, P > 0.05, respectively), and alleviated the adhesion. Intrapericardial bleeding related to fibrinolysis was found in 6 of 47 patients with non-blood pericardial effusion and no systemic bleeding and severe puncture-related complication was observed. In follow-up, there was no cardiac death, and pericardial constriction events were observed in 9 (19.1%) of study group and 27 (57.4%) of control group. Cox analysis illustrated that urokinase could significantly reduce the occurrence of pericardial constriction (relative hazard coefficient = 0.185, P < 0.0001).

CONCLUSIONThe early employment of intrapericardial fibrinolysis with urokinase and pericardiocentesis appears to be safe and effective in preventing the development of pericardial constriction in patients with infectious exudative pericarditis.

Adolescent ; Adult ; Aged ; Child ; Female ; Fibrinolytic Agents ; administration & dosage ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Pericardiocentesis ; Pericarditis ; drug therapy ; therapy ; Pericarditis, Constrictive ; prevention & control ; Thrombolytic Therapy ; Urokinase-Type Plasminogen Activator ; administration & dosage

To construct a recombinant replication-defective human adenovirus type 5 expressing Cap protein of PCV2 and test the immunological efficacy in mice. In this study, the recombinant replication-defective human adenovirus type 5, named as rAd5-Cap (wt-rAd5), was constructed through homologous recombination internally in the HEK293AD cells after co-transfection of the Pac I-linearized backbone plasmid and the shuttle plasmid pacAd5CMV-Cap containing the open reading frame (ORF2) of the porcine circovirus type 2 (PCV2) cap protein or pacAd5CMV without inserted fragment. Furthermore, the rAd5-Cap could induce the expression of PCV2 cap protein in the HEK293AD cells with high efficacy evaluated by the RT-PCR and indirect immunofluorescence assay (IFA). The virus titer of rAd5-Cap could reach up to 10(8.5) TCID50/mL similarly to that of wt-rAd5, indicating that there was little affect on the virus proliferation after the insertion of PCV2 cap protein gene. The humeral immune responses could be activated and detected 14 days after the inoculation of the mice with 10(7) TCID50 rAd5-Cap intramuscularly, and constantly in crease in another 14 days. These molecular biological and animal experiments results demonstrated that the PCV2 cap protein could be efficiently expressed by the recombinant adenovirus rAd5-Cap in eukaryotic cells and induce robust immune responses in mice, which laid a good foundation for the development of new type vaccine against porcine circovirus.
Adenoviruses, Human ; genetics ; Animals ; Antibodies, Viral ; blood ; Capsid Proteins ; genetics ; immunology ; Circovirus ; immunology ; Defective Viruses ; genetics ; HEK293 Cells ; Humans ; Mice ; Recombinant Proteins ; biosynthesis ; immunology ; Virus Replication

Objective To apply objective structured teaching evaluation (OSTE) in teaching competence assessment for general practice preceptors in community training bases.Methods The teaching competency was assessed with OSTE for 28 general practice preceptors in Fengxian District of Shanghai in December 2017.The application of OSTE was evaluated with questionnaire among preceptors,examiners and standardized students(SS).Results Among 28 preceptors there were 23 females (82.1％),with an average age of (37.3±4.2) years.The average teaching duration was (2.8±2.1) years.In the five OSTE station,the highest total score was (88.1 ±2.7) points in the first station self-presentation,while the lowest was (70.8± 14.5) points of the second part physical examination feedback of the third station ambulatory care teaching.The total score in the fifth station (doctor-patient communication teaching) of participants with＜ 15 years of community practice was higher than those ≥15 years of community practice [(80.1±8.5) vs.(71.6± 7.1),t=2.092,P=0.007].Except"being able to adapt to this form of evaluation",the proportions of choosing "very good"were all more than 50％ in other 4 aspects.The overall willingness of "recommending OSTE as the main method to evaluate the teaching competence of GP trainers" was higher in examiners and SS than that inpreceptors (Z=2.836,P=0.005).Conclusion The innovative approach of OSTE has been widely recognized,but the professional capability,the cognition of general practice,the teaching competence and the willingness to use OSTE need to be strengthened for general practice receptors in community bases.

OBJECTIVE: To observe effects of restraint position on the changes of diaphragmatic mechanical characteristic in rats, and try to explore the role of nitric oxide (NO). METHODS: Rat model of restraint position was established. Rats were divided into control group, restraint position 12h and 24h groups. The markers of respiratory functions in vivo and the biomechanical markers of diaphragmatic characteristic ex vivo were evaluated. Serum NO levels were measured with spectrophotometry. The expressions of nNOS and iNOS mRNA in diaphragm were detected using RT-PCR. RESULTS: Compared with control group, respiratory rate, tidal volume and minute ventilation were significantly decreased in the restraint position 12h and 24h groups. Pt of diaphragm significantly decreased and force-generating capacity reduced at low frequency stimulation in 12h group. Force-generating capacity over the full range reduced at low and high frequency stimulation in 24h group. Pt of diaphragm in control and restraint position groups increased after L-NNA pre-incubation. Force-frequency relationship after L-NNA pre-incubation reduced in 24h group. NO level in serum increased significantly in the restraint position groups. Diaphragmatic nNOS mRNA expression was upregulated significantly in the restraint position groups. CONCLUSION Restraint position induces the decreasement of diaphragmatic contractility and the decreasement is mediated by NO from diaphragm or circulation blood.
Animals ; Biomechanical Phenomena ; Diaphragm/physiopathology* ; Male ; Muscle Contraction/physiology* ; Muscle Tonus/physiology* ; Nitric Oxide/metabolism* ; Nitric Oxide Synthase/metabolism* ; Posture ; RNA, Messenger/metabolism* ; Rats ; Rats, Sprague-Dawley ; Respiration Disorders/physiopathology* ; Restraint, Physical ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVETo investigate the effect of Vibrant Soundbridge (VSB) implantation.

METHODSIn accordance with the indications for VSB implantation, surgeries were done for two patients who suffered from either a sensorineural or conductive hearing loss (microtia). Their preoperative auditory thresholds (0.5, 1, 2 and 4 kHz) were 56 dB HL and 61 dB HL. The VSB was turned on and adjusted seven weeks after surgery.

RESULTSPostoperative auditory thresholds of the two patients were improved. Their pure tone thresholds were 32 dB HL and 40 dB HL, and the respective improvement was 24 dB HL and 21 dB HL. There was no facial paralysis, vertigo and tinnitus.

CONCLUSIONPatients with a sensorineural or conductive hearing loss may benefit from VSB implantation.

Adolescent ; Adult ; Female ; Hearing Loss, Conductive ; surgery ; Hearing Loss, Sensorineural ; surgery ; Humans ; Prosthesis Implantation ; Treatment Outcome

BACKGROUNDHuman group O red blood cells have great benefit in specialized transfusion areas such as armed conflict and natural calamity. The group B antigen differs structurally from group O antigen only by the addition of one terminal alpha-linked galactose residue. In this study we aimed to remove the terminal galactose from group B red blood cell to get group O red blood cell.

METHODSalpha-galactosidase cDNA was cloned by RT-PCR from Catimor coffee beans grown on Hainan Island of China. The vector for alpha-galactosidase cDNA expression was constructed and transferred into Pichia pastoris cells by electroporation. The transgenic cells were cloned by fermentation and the recombinant alpha-galactosidase was purified by ion exchange chromatography. After studying the biochemical characters of alpha-galactosidase, we have used it in converting human erythrocytes from group B to group O.

RESULTSThe purity of recombinant alpha-galactosidase was higher than 96%, which was thought to be suitable for the use of blood conversion. Enzymatically converted human group O red blood cells (ECHORBC) exhibited membrane integrity, metabolic integrity, normal cell deformation and morphology. There were no coagulation between ECHORBC and any group of human blood. The ECHORBC will keep normal structure and function for a period of 21 days at 4 degrees C in monoammoniumphosphate nutrient solution. Experiments with Rhesus monkeys and gibbons showed that transfusion of enzymatically converted erythrocytes was safe.

CONCLUSIONECHORBC can be easily obtained from group B red blood cell by alpha-galactosidase digestion. This study suggests that ECHORBC could be transfused to patients safely and efficiently.

ABO Blood-Group System ; classification ; metabolism ; Animals ; Blood Transfusion ; Cloning, Molecular ; Coffee ; enzymology ; Erythrocytes ; metabolism ; Humans ; Macaca mulatta ; Quality Control ; Recombinant Proteins ; isolation & purification ; pharmacology ; alpha-Galactosidase ; immunology ; isolation & purification ; pharmacology ; toxicity

To construct a recombinant baculovirus expressing glycoprotein (GP) of RV SRV9 strain and test the immunological efficacy in mice, open reading frame of rabies virus GP gene of SRV9 strain was cloned into the shuttle vector Bacmid to construct the recombinant shuttle plasmid Bacmid-G and transfection was performed into S f9 cells with the recombinant shuttle plasmid. CPE appeared in cell cultures was identified by electronmicroscopy. Western-blot, IFA and immunity tests in mice were performed to identify the immunoreactivity and immunogenicity of the expression products. Our results showed a recombinant baculovirus expressing GP protein of rabies virus SRV9 was obtained. The expression products possessed a favorable immunogenicity and fall immunized mice could develop 100% protective level of anti-rabies neutralizing antibody. In conclusion, The SRV9 glycoprotein expressed by the recombinant baculovirus in this study had good immunogenicity and could induce anti-rabies neutralizing antibody, which laid the foundation of further development of rabies subunit vaccine.
Animals ; Antibodies, Viral ; immunology ; Baculoviridae ; genetics ; metabolism ; Gene Expression ; Genetic Vectors ; genetics ; metabolism ; Glycoproteins ; administration & dosage ; genetics ; immunology ; Humans ; Mice ; Rabies ; immunology ; prevention & control ; virology ; Rabies Vaccines ; administration & dosage ; genetics ; immunology ; Rabies virus ; genetics ; immunology ; Viral Proteins ; administration & dosage ; genetics ; immunology