Air Pollutants ; toxicity ; Air Pollution, Indoor ; adverse effects ; Animals ; DNA Damage ; drug effects ; Female ; Interior Design and Furnishings ; Male ; Mice ; Mutagenicity Tests

OBJECTIVE:To observe clinical efficacy and safety of naloxone hydrochloride combined with Danshen injection in the treatment of neonatal hypoxic ischemic encephalopathy(HIE). METHODS:104 patients with HIE were randomly divided into observation group and control group with 52 cases in each group. The control group was treated with Naloxone hydrochloride injec-tion 0.02 mg/kg,ivgtt,qd and conventional symptomatic treatment;while observation group was additionally treated with Danshen injection 4-6 ml+10% Glucose injection 20 ml,ivgtt,qd,on the basis of the control group. Treatment course of 2 groups lasted for 7 d. Clinical efficacy,symptom and sign recovery of 2 groups were compared,as well as levels of serum MMP-9,IL-6 and TNF-α,cerebral hemodynamic parameters and ADR. RESULTS:There was no statistical significance in MMP-9,IL-6,TNF-α and cerebral hemodynamic parameters before treatment(P>0.05). The total effective rate of observation group(92.31%)was signifi-cantly higher than that of control group (75.00%);after treatment,the recovery time of consciousness disturbance,primitive re-flex and muscle tension in the observation group were shorter than those in the control group;the levels of serum MMP-9,IL-6 and TNF-α in observation group were significantly lower than those in control group;peak systolic flow velocity(PSFV),end-dia-stolic flow velocity (EDTV) were higher in the observation group than in the control group,with statistical significance (P<0.05);resistance index (RI) was lower than in control group,but without statistical significance (P>0.05). No ADR was ob-served in 2 groups. CONCLUSIONS:Naloxone hydrochloride combined with Danshen injection can significantly promote HIE and signs recovery,reduce the levels of serum MMP-9,IL-6 and TNF-α,and improve hemodynamic parameters with good safety.

OBJECTIVETo explore the effect of internal fixation with screw through femoral epiphyseal plate on growth in- hibition via an experimental study.

METHODSForty New Zealand rabbits were randomly divided into 4 groups and 10 rabbits in each group. Epiphyseal plate was injured by penetrating of screws, and the size of damage area was controlled by changing the number of threads. Group A: blank group; group B: injury area accounted for 4% of the epiphyseal plate; group C: injury area accounted for 6%; group D: injury area accounted for 8%. The internal fixation was removed after 2 weeks, and the results were observed with X-ray film for 4 groups to judge the complications such as early closure of epiphyseal.

RESULTSIn each group, there were no statistical differences in the length of the femoral neck, the diameter of femoral neck, the diameter of the femoral head, and the epiphyseal plate closure time. The growth speed of the length and diameter of the femoral neck, as well as the diameter of femoral head, were quicker on the early phase, and the speed was slowest when the epiphyseal plate was being closed.

CONCLUSIONThe injury area of epiphyseal plate under 8% is safe for its growth. Because no evidences demonstrate the growth inhibition of epiphyseal plate, the screws can be used for rabbit epiphyseal plates.

Animals ; Bone Screws ; Female ; Femur Head ; growth & development ; surgery ; Fracture Fixation, Internal ; methods ; Growth Plate ; growth & development ; Magnetic Resonance Imaging ; Male ; Rabbits ; Salter-Harris Fractures

OBJECTIVETo verify the mechanism of the hepatitis B viral clearance using clinical data.

METHODSViral level and HBV marker in serum were analyzed in 12 patients with acute hepatitis B.

RESULTSThe clearance of hepatitis B virus occurred before the patients were hospitalized in 66.7% of patients. The viral level and the A value of HBsAg;HBeAg declined gradually during hospitalization.

CONCLUSIONSIn most of patients with acute hepatitis B in the study, the virus was cleared without destruction of infected cells.

Adult ; DNA, Viral ; blood ; Female ; Hepatitis B ; virology ; Hepatitis B Antibodies ; blood ; Hepatitis B Core Antigens ; blood ; Hepatitis B Surface Antigens ; blood ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; genetics ; immunology ; isolation & purification ; Humans ; Male ; Middle Aged ; Prognosis ; Retrospective Studies

Treatment based on syndrome differentiation is an essential feature of traditional Chinese medical diagnosis. The interventions based on changes of syndrome types in randomized controlled trials are complicated, leading to the difficulty of blind method enforcement. This article described a double-blind method. It could be used in randomized controlled trials under the condition of different syndrome types and different medications. It numbered drugs in two stages, and in two phases to achieve double-blind. This method not only guaranteed investigators and subjects to be in blinded conditions, but also achieved using different medications for patients of different syndromes. It also caused no drug waste. It was scientific and feasible.
Double-Blind Method ; Humans ; Medicine, Chinese Traditional ; Randomized Controlled Trials as Topic ; Single-Blind Method

To investigate the induction of apoptosis of mouse colonic adenocarcinoma CT26 cells by recombinant Clostridium difficile toxin B (rTcdB), CT26 cells were exposed to different concentrations of rTcd B. Inhibition of cell proliferation was measured by MTT assay. The activation of Caspase 3 was measured by colorimetric method. Cell morphological analysis and flow cytometry were performed to confirm cell apoptosis. rTcd B inhibited the proliferation of CT26 cells in a timeand dose-dependent manner. Caspase 3 activity in CT26 cells was elevated remarkably after rTcd B exposure for 6 h, 12 h, 18 h or 24 h, as compared with the control group. Morphological changes were observed by fluorescence microscopy. The exposure of rTcd B to CT26 cells induced a timeand dose-dependent apoptotic cell death as determined by flow cytometry analysis. The results showed that recombinant Clostridium difficile toxin B induced apoptosis of CT26 cells.

Objective To investigate the effect of maternal age,gestational weeks,numbers of previous spontaneous abortion and embryo gender on chromosomal abnormalities.Methods Bacs on Beads (BoBs) technology was used to detect the chromosome aneuploidy of 245 pregnant women with spontaneous abortion or stillbirth in Jinan Maternity and Child Care Hospital from January 2015 to December 2017 and to analyze the types of their chromosome abnormalities.Comparative analysis between different groups was carried out using Chi-square test.Results Karyotypes of all cases (n=245) were obtained using BoBs.Among them,113 had chromosome abnormalities (46.1％),including 66 autosomal aneuploidy (58.4％),26 sex chromosome aneuploidy (23.0％),seven autosomal partial trisomy (6.2％),five autosomal partial monomer (4.4％),seven triploid (6.2％),one complex triploid (0.9％) and one double trisomy (0.9％).Pregnant women aged over 35 had a higher incidence of chromosome abnormality than those under 35 [61.0％ (36/59) vs 41.4％ (77/186),x2=8.003,P＜0.05].The incidence of chromosome abnormality of women aborted in the first-trimester was also higher than those aborted in the second-trimester [48.5％ (99/204) vs 34.2％ (14/41),x2=4.634,P＜0.05].Moreover,male embryos were more likely to have chromosome abnormality than female ones [57.6％ (49/85) vs 40.0％(64/160),x2=6.483,P＜0.05)].However,there was no significant difference between gravidas with different times of spontaneous abortion (0,1 or ≥ 2,P＞0.05).Conclusions Chromosome abnormality is a major cause of spontaneous abortion,particularly in embryos with chromosome aneuploidy,partial trisomy,partial monomer and triploid.Advanced maternal age may increase the risk of chromosome abnormalities in pregnancies complicated with spontaneous abortion or stillbirth.

Objective To study the feature of regional cerebral metabolism rate of glucose (rCMRglc) in patients with Alzheimer’s disease (AD) and the value of positron emission tomography (PET) scanning in diagnosis of AD. Methods 13 AD patients and 13 health controls ,Who matched in age,sex and education years,were scanned with PET. Results (1) Watching by naked eyes,there was mild decreasing of rCMRglc at parietal lobe in healthy elders. While in AD patients,there was widely decreasing of cerebral metabolism rate of glucose. The most significant region was parietal lobe, the next was temporal lobe,and the last was frontal lobe. (2) Detecting with PET and dealing with statistical parametric mapping (SPM) of 99 software,there was more significant decreasing of rCMRglc in regions 7,23,30,31 of cingulate gyrus,region 39 and 40 of pario-occipital lobe,region 20 of temporal lobe and region 6,8,9 of frontal lobe in AD group( P

OBJECTIVETo develop a draft questionnaire (China Musculoskeletal Questionnaire, CMQ) for evaluating of musculoskeletal workload and associated potential hazardous working conditions as well as musculoskeletal symptoms of workers in Sitting Posture.

METHODSMulti-methods, which include the reviewing references, the summarizing results of preliminary studies, the reviewing ergonomic tools, the consulting experts and occupational health workers and the interviewing or discussing with individual workers in sitting posture, were used in developing item pool. The experts and epidemiologists of occupational health scored the importance of every single item in the item pool, and then the survey and sampling were carried out in 325 workers of sitting posture who completed the questionnaire. On the basis of these data, the methods including experts scoring, item analysis, Cronbach's α analysis and factor analysis were synthetically used to select the reliable items which consisted of the formal questionnaire.

RESULTSThe standard of the CMQ, which consists of 34 items on musculoskeletal workload and associated potentially hazardous working conditions, can be divided into nine indices (dynamic loads, static loads, repetitive loads, forces-exertion, prolong time, climatic factors, vibration, position and ergonomic environmental factors).

CONCLUSIONThe CMQ possesses good content validity, and the items of CMQ are divergent, reliable and typical. However, the reliability and validity of CMQ should be validated.

China ; Ergonomics ; Humans ; Musculoskeletal System ; Occupational Health ; Posture ; Surveys and Questionnaires ; Workload

Objective To explore the clinical effect of Liuwei Dihuang decoction on thrombocytopenia(HIT)of liver and kidney yin deficiency in hemodialysis patients.Methods 84 hemodialysis patients with liver and kidney yin deficiency HIT were randomly divided into observation group and control group,with 42 cases in each group.The control group was treated with conventional western medicine,while the observation group was treated with Liuwei Dihuang decoction on the basis of the control group.The scores of liver and kidney yin deficiency syndrome before and after treatment and the curative effect of traditional Chinese medicine syndrome were compared between the two groups,and the platelet count(Plt),P-selectin level,HIT antibody before and after treatment,the platelet recovery time and clinical efficacy and adverse reactions of the two groups were also compared.Results After 1 month of treatment,the scores of liver and kidney yin deficiency syndrome in the two groups were both lower than those before treatment(P<0.05),which in the observation group was lower than that of the control group(P<0.05).The total effective rate of traditional Chinese medicine syndromes in the observation group(97.62%)was higher than that in the control group(P<0.05).After 14 d of treatment,the Plt of the two groups were both higher than those before treatment,while the levels of P-selectin and the positive rate of HIT antibody of the two groups were lower than those before treatment(P<0.05),and the Plt in the observation group was higher than that of the control group,the levels of P-selectin and the positive rate of HIT antibody in the observation group were lower than those in the control group(P<0.05).The platelet recovery time in the observation group was shorter than that in the control group(P<0.05),the total effective rate of clinical treatment in the observation group(95.24%)was higher than that in the control group(P<0.05).There was no significant difference in the incidence of adverse reactions between the two groups during treatment(P>0.05).Conclusion On the basis of conventional western medicine treatment,the addition of Liuwei Dihuang decoction to treat HIT of liver and kidney yin deficiency in hemodialysis patients can improve the clinical efficacy,reduce the clinical symptoms of patients,improve the level of Plt,shorten the recovery time of platelet,and reduce the level of P-selectin and the positive rate of HIT antibody,with good safety,which is worthy of clinical promotion.