Adult ; Analysis of Variance ; Burnout, Professional ; Chemical Industry ; Female ; Humans ; Male ; Middle Aged ; Personality ; Petroleum ; Regression Analysis ; Surveys and Questionnaires ; Young Adult

A rare strain of actinomycetes, with broad-spectrum antimicrobial activity, was isolated from the soil samples from the farmland in the area of Yaohu lake in Nanchang. The information about the taxonomic identification, such as the morphology, physiological properties, cell components and 16S rRNA gene se-quences, suggested that the rare strain of actinomycetes was identified as Micromonospora carbonacea.

Based on the strain of Micromonospora carbonacea JXNU-1 with board-spectrum antimicrobial activity, the technology for the isolation and purification of antibiotic from the fermentation broth of the Micromonospora carbonacea, and its physical-chemical properties were studied. The results showed that, the antibiotic was stable under the condition of high temperature and alkali, but not in acid solution. After the pretreatment of centrifugation and filtration to remove the cells and lipids, the antibiotic was absorbed to negative exchange resin, and the impurity was excluded when 2 mol/L NaCl was used as primary eluent. The antibiotic could be eluted with 20% alcohol as eluent, and the eluting speed of the antibiotic was greatly accelerated as 2 mol/L NaCl was added into 20% alcohol as final eluent. Aqueous solution of the antibiotic was yielded from the alcohol-salt eluant by decompression concentration to wipe off alcohol and by dialysis to exclude salt. One active component was detected in antibiotic solution by paper chromatography, and theHPLC purity was over 99%. As the antibiotic shows positive color-forming reaction to Molish reagents, Benedict’s reagents and Diohenvlamine reagents, combined with the characteristics of absorption spectra, it is deduced that the antibiotic belongs to nucleoside antibiotics.

Advances in mechanism and application of the heating effect in breeding of microorganism are reviewed in this paper. Heat produces mutagenesis effect and screening effect. Heating mutagenesis effect is occurred through the substitution of G-C base pair induced by heat, and heating screening effect produces higher forward mutation rate induced by other mutagens.

Bronchi ; abnormalities ; Child, Preschool ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Multidetector Computed Tomography ; methods ; Pulmonary Artery ; diagnostic imaging ; Trachea ; abnormalities

OBJECTIVETo observe the effect of obesity on pharmacokinetics and pharmacodynamics of isoflurane.

METHODSTwenty-six patients undergoing cholecystectomy were divided into obese group (Group A, BMI > or = 27, n = 13) and normal body weight group (Group N, BMI < or = 24, n = 13) according to body mass index (BMI). All patients were given to the same isoflurane anesthesia. Inspired and end-expired concentrations of isoflurane were monitored and uptake fraction of isoflurane were calculated.

RESULTSIsoflurane concentrations of vaporizer in Group A [(1.8 +/- 0.3)%] were evidently higher than those in Group N [(1.5 +/- 0.1)%] at all observed points (P < 0.05 or P < 0.01). Uptake fraction of isoflurane in Group A were higher than those in Group N at observed points (P < 0.05, P < 0.01 or P < 0.001), but there were no differences in the time when isoflurane concentration was lowered to 50% and awake time between the two groups after discontinuing inhaling isoflurane.

CONCLUSIONSObese patients demand higher inspired concentration and uptake of isoflurane than those in normal weight patients but discharge of isoflurane was influenced by obesity within the observed period of (66 +/- 33) min.

Adult ; Aged ; Anesthesia, Inhalation ; Anesthetics, Inhalation ; administration & dosage ; pharmacokinetics ; Body Mass Index ; Cholecystectomy, Laparoscopic ; Dose-Response Relationship, Drug ; Female ; Humans ; Isoflurane ; administration & dosage ; pharmacokinetics ; Male ; Middle Aged ; Obesity ; complications ; metabolism

OBJECTIVETo evaluate the outcomes of discectomy with transforaminal endoscope through interlaminar approach in treating lumbar disc herniation.

METHODSFrom April 2009 to April 2010, the clinical data of 27 patients with lumbar disc herniation were retrospectively analyzed. The patients were treated with discectomy by transforaminal endoscope through interlaminar approach, including 20 males and 7 females, with an average age of 41.8 years, ranging from 21 to 69 year; of them, 12 patients with "from inside to outside" approach and 17 patients with "from outside to inside" approach. All the patients were followed up. Clinical effect were evaluated according to Oswestry Disability Index (ODI) and modified MacNab standard.

RESULTSThe operation of one case was stopped because of unobvious visual field of bleeding and the one case was transferred to microendoscopic discectomy. Other operations of 25 cases were successful. Among 27 patients, 20 cases were followed up from 12 to 24 months with an average of (18.0+/-2.5) months. The mean of ODI improved from preoperative (75.4+/-7.8)% to (13.0+/-20.5)% at final follow-up (P=0.000). According to modified MacNab standard, 7 cases obtained excellent result, 9 good, 1 fair and 3 poor. Among the poor outcome, one patient accepted the classical discectomy because of recurrent herniation of same level three months later,and the other two need take medicine.

CONCLUSIONThe discectomy with transforaminal endoscope through interlaminar approach for lumbar disc herniation is effective by decompress through from outside to inside access and from inside to outside access,the former is recommended to the dural sac and nerve root compressed to collateral side by huge protrusion and the latter is recommended to relatively smaller protrusion with long time conservative therapy.

Adult ; Aged ; Diskectomy ; adverse effects ; instrumentation ; methods ; Endoscopes ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged

Objective To investigate the prevalence and associated risk factors of hypertension in Songnan community so as to provide evidence for the early prevention of hypertension.Methods Cluster sampling was employed,and questionnaire survey was performed in 10 185 residents aged above 40 years in Songnan community of Baoshan District.The questionnaires involved with hypertension and associated risk factors.Results The prevalence of hypertension was 49.9% in Songnan community of Baoshan District,and that of men was significantly higher than that of women(53.7% vs 47.3%)(P

OBJECTIVETo discuss the origin of occupational stress among petrochemical industry workers and to access the main occupational stressors that impact job satisfaction and mental health of petrochemical industry workers.

METHODSA survey on occupational stressor was carried out by Occupational Stress Indicator (OSI) in 532 petrochemical industry workers (345 chemical and 187 logistic workers).

RESULTSThe environment in workplace of chemical group was worse than that of contrast. The chemical workers had less control over job and they experienced more hazards, monotonous as well as role stressors than the logistic group. The scores of job satisfaction and mental health of chemical group (36.867 +/- 0.656, 43.734 +/- 0.542, respectively) were higher than that of contrast (40.321 +/- 0.901, 46.714 +/- 0.745, respectively) (P < 0.05).

CONCLUSIONThe occupational stressors exist in chemical workers which affect chemical workers' job satisfaction and mental health with different levels.

Adult ; Analysis of Variance ; Burnout, Professional ; Chemical Industry ; Female ; Humans ; Job Satisfaction ; Male ; Middle Aged ; Petroleum ; Regression Analysis ; Young Adult

OBJECTIVETo investigate the risk factors of intestinal acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT).

METHODSThe clinical data of 534 cases of 533 patients undergoing allo-HSCT during Jan 2004 and Sep 2012 were retrospectively analyzed. The effects of donor-recipient HLA mismatching, recipient age, donor age, donor-recipient sex combination, donor-recipient relationship, HSC source, conditioning regimen with or without total body irradiation (TBI) and HLA loci on intestinal aGVHD with different severity were analyzed by Logistic regression.

RESULTSIntestinal aGVHD occurred in 123(23.0%) cases, with 86(16.1%) cases of stage 1 intestinal aGVHD(16.1%) and 37(6.9%) cases of stage 2 to 4 intestinal aGVHD. Multivariate analysis showed that donor-recipient HLA mismatching (OR=2.519, P=0.002), increasing donor age (OR=1.034, P=0.003), female donor for male recipient (OR=1.855, P=0.007) were risk factors for intestinal aGVHD, HLA-B38 (OR=0.256, P=0.032) was its protective factor. Donor-recipient HLA mismatching (OR=2.799, P=0.011), increasing donor age (OR=1.045, P=0.012), HLA-A1 (OR=4.157, P=0.002), A30 (OR=3.143, P=0.005) were risk factors for stage 2 to 4 intestinal aGVHD.

CONCLUSIONOccurrence of intestinal aGVHD and its severity are associated with donor-recipient HLA mismatching, donor age, donor-recipient sex relationships and some HLA loci.

Adolescent ; Adult ; Child ; Child, Preschool ; Female ; Graft vs Host Disease ; epidemiology ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Humans ; Intestinal Diseases ; epidemiology ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; Tissue Donors ; Transplantation, Homologous ; adverse effects ; Young Adult