Objective To develop a sensitive,quick and convenient comet assay with Viciafaba root cells,so as to provide the reference for biomonitoring in situ.Methods The K_2CrO_7 and H_2O_2 were used as the positive control,the Viciafaba root cells isolated with mechanical and enzyme treatment respectively were exposed to the different concentrations of K_2CrO_7(1 nmol/L,10 nmol/L,100 nmol/L,1000 nmol/L)and H202(25 ? mol/L,50 ? mol/L,100 ?mol/L,200 ?mol/L).The effect of DNA damage was detected by using comet assay.Results The yield of Viciafaba root cells isolated from enzyme treatment were much higher than that from mechanical treatment.K_2CrO_7and H_2O_2 could cause DNA damage in Viciafaba root cells,there was significant difference between exposure group and control group(P

Objective To investigate the effect of Liuwei Dihuang decoction combined with Taohong Siwu decoction in the treatment of traumatic renal contusion and laceration with long time no absorption of hematoma.Methods 166 patients with traumatic renal contusion and laceration with long time no absorption of hematoma from the department of urinary surgery from June 2014 to July 2016 in our hospital were selected and divided into two groups,83 cases in the control group treated with routine conservative treatment,83 cases in the experiment group received Liuwei Dihuang decoction combined with Taohong Siwu decoction on the basis of the control group,hematoma absorption,the scope of the hematoma of the kidney,the hemodynamic parameters of renal artery,the level of serum inflammatory factors,and the clinical effect were compared after the treatment.Results After treatment,the effective rate in the experiment group 93.98% was higher than the control group 77.11% (P<0.05);Compared with the control group,the beginning of absorption time of kidney hematoma,disappearance time of microscopic hematuria and the hospitalization time were shorter in the experiment group after treatment, the scope of perirenal hematoma was smaller after 2,4,12 weeks of treatment,the levels of Vmax and Vmin in renal aorta were higher,levels of AT and RI were lower after treatment, serum levels of TNF-α, IL-8, IL-1, IL-6 were lower after treatmentwith significant difference ( P <0.05 ). Conclusion Liuwei Dihuang decoction combined with Taohong Siwu decoction can significantly promote the absorption of hematoma in patients with traumatic renal contusion and laceration,improve the blood flow of renal artery,reduce the inflammatory reaction index, promote the recovery of renal injury,shorten the length of hospital stay.

0 05)in all parameters The tumor inhibitory rate and the cells detained in G 0～G 1 phase significantly increased, meanwhile, cells in S phase, the PI and PCNA significantly decreased in rhGH+L OHP group compared with control group or rhGH group ( P

Objective To identify risk factors associated with the severity of acute kidney injury (AKI) in-duced by crush syndrome and whether the patient required hemodialysis (HD). Method A retrospective study was designed. Within 19 days after the Chinese Wenchuan earthquake (May 12, 2008), 63 victims (33 men, 30women) of 2139 cases were hospitalized at Mianyang Central Hospital (Siehuau, China) because of crush syn-drome caused by crush injuries. The patients with renal dysfimcfion before the earthquake were excluded. Totally 63 patients with AKI associated with crush syndrome were included in this study and were divided into two groups: group 1, 25 patients, requiring HD (when urine volume <250 mL/d;serum potassium> 6 mmol/L) ; and group 2, 38 patients, without HD. The following data were collected retrospectively for all patients: (1) epidemiological parameters: age, gender, race, time under the rubble, liquid treatmem before being rescued; (2) clinical param-eters: blood pressure, body area crushed, amputation, fasciotomy, blood transfusion, quantity of fluid infusion, urine output in the first 24 hours; (3) initial laboratory data: complete blood count, urine analysis, serum chem-istry, arterial blood gas analysis. Comparisons between the two groups were made using SPSS 10.0. The quantita-tive data and categorical data were analyzed using t tests and χ2 tests, respectively. P -values < 0.05 were consid-ered to indicate significant differences. The significant variables were entered into logistic regression models to de-termine the risk factors for the severity of AK1 in patients with crush syndrome and whether the patient required HD. Results Four significant risk factors with P -values < 0.05 were identified: fasciotomy, cystatin C (Cys C)level, myoglobin (MB) level and lactic acidosis. The odds ratios (95% confidence intervals) were 8.641 (3.027～76.479), 6.956 (3.027～76.479), 5.379 (3.027～76.479) and 4.833 (2.569～32.764), respectively. Conclusions In addition to urine output and potassium levels, we found that four risk factors, namely faseiotomy, Cys C and MB levels, and lactic acidosis, were significanfly associated with the severity of AKI and whether the patient required hemodialysis.

Objective To investigate the effect of blastocyst quality on the strategy of single blastocyst transfer in frozen-thawed cycles. Methods A retrospective analysis was performed in Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region on clinical data of single frozen-thawed blastocyst transfer cycles from January 2008 to December 2013. All cycles were divided into four groups (AA, AB/BA, BB, BC/CB) according to the blastocyst score, then the clinical outcomes were compared between groups. And on this basis, the clinical outcomes were further explored when the group of outcomes with single blastocyst transfer wasn′t ideal, which would diverted to transfer two blastocyst. Results In single frozen blastocyst transfer cycles, the clinical pregnancy rate of each group with the blastocyst scored AA, AB/BA, BB, BC/CB were 61.4%(470/765), 51.2%(330/645), 40.5%(407/1 005), 22.9%(60/262), live births rate in each group were 52.2%(399/765), 41.2%(266/645), 30.4%(306/1 005), 13.7%(36/262), and the abortion rate were 13.6%(64/470), 16.7%(55/330), 21.4%(87/407), 35.0%(21/60), separately. This showed that the clinical pregnancy rate and live births rate decreased significantly with the decline of blastocyst quality (P<0.01), but the abortion rate showed significant upward trend (P<0.01). When single blastocyst scored≥BB grade transferred, an acceptable clinical pregnancy rate (>40%) and live births rate (>30%) could be obtained, however, the clinical pregnancy rate of 22.9% and live births rate of 13.7%could only be acquired when blastocyst scored BC/CB only transferred one embryo, which significant lower than those of each group scored ≥BB grade (P<0.01). So, after that, the blastocyst scored BC/CB were further divided into two groups (single blastocyst transferred versus two blastocyst transferred) to investigate, then the result showed that the clinical pregnancy rate [22.9%versus 38.5%(67/174), P<0.01] and live births rate [13.7%versus 30.5%(16/67), P<0.01] were significantly increased in the group of two blastocyst transferred compared with the group of one blastocyst transferred, and the abortion rate was also significantly decreased from 35.0%to 17.9%(12/67;P<0.05). So when two blastocyst scored BC/CB were transferred, the clinical outcomes were similar to the group of one blastocyst scored BB transferred (P>0.05). Conclusions Of single blastocyst transfer in frozen-thawed cycles, the clinical pregnancy rate and liver births rate showed significant upward trend, but the abortion rate showed significant downward trend, with the decline of blastocyst quality. When the blastocyst scored ≥BB grade, the single blastocyst transfer could be considered to be performed.

According to the phenomenon that the curriculum of psychological health education for college students is theoretical,lack of experience and the teaching form is single,this research attempts to private a blended teaching which is based on the small private online course (SPOC) and experiential teaching.The content of mental health is divided into theoretical knowledge and experience knowledge.And the theoretical knowledge is taught through online teaching in the form of massive open online courses (MOOC),while the experiential knowledge is taught by pure experiential teaching in the classroom.The study has summed up 3 stages of learning mode:learning before class,teaching experience and reflection after class.This changes the single classroom theory teaching to students experience learning.Besides,formative evaluation is used as assessment methods,which has enhanced the effectiveness of the course and at the same time,it has also promoted the improvement of teachers' teaching level effectively.

Objective To investigate the pretreatment and post-treatment effect of reduced glutathione (GSH) on acute ischemia-reperfusion injury (IRI) of rat kidney. Methods Fifty adult SD rats were divided into 5 groups: control group (Sham group), ischemia reperfusion group (I/R group), GSH pretreatment group (pre-treatment group), and GSH post-processing group (post-treatment group), with ten rates in each group. Animals in pre-treatment group were injected 4% GSH 100 mg/kg intraperitoneally at 24th , 16th , 8th hour and 45th minute before surgery. Animals in post-treatment group were administrated GSH with the same dosage at 45th minute, 6th, 12th and 18th hour after surgery. Creatinine (Cr), urea nitrogen (BUN) level, the total superox-ide dismutase (T-SOD) activity, malondialdehyde (MDA) and nitric oxide (NO) levels in serum were measured at 24th hour after surgery. Histopathological changes were checked by H. E staining. Results Damage on kid-ney structure of animals in pre-treatment group was less than that in I/R group. There was little pathological change on kidney of those in pre-treatment group. Serum Cr, BUN, MDA and NO levels were all decreased but T-SOD activity increased in pre-treatment and post-treatment group when compared with those in I/R group (P <0.05), (P < 0.05). T - SOD activity in post-treatment group was higher than that in pre-treatment group (P <0.05). Conclusion GSH can protect rats against acute renal ischemia-reperfusion injury within 24 hours before and after kidney ischemia-reperfusion , especially after ischemia-reperfusion.

Objective To analyze the genotypes of clinical varicella-zoster virus(VZV) isolates in Tibet.Methods The samples of vesicular fluid from patients with chickenpox or zoster were collected to isolate VZV in human embryonic fibroblast cells.Furtherly,the isolated VZV were identified by indirect immunofluorescence assay and the positive ones were continuely cultured in vitro to get their genome DNAs.Then,PCR and nucleotide sequencing were performed on the part of open reading frames 1,21,50,54.To confirm the genotypes of isolated virus strains,the gene sequences obtained from PCR products were compared with that in GenBank of VZV Dumas strains,and their restriction enzyme sites were analyzed via Primer 5.0.Results Ten clinical isolates of VZV were obtained from sixteen specimens,the positive isolation rate was 62.5％.Gene analysis showed that among all the ten clinical isolates of VZV in Tibet,three strains are genotype A1,four are genotype A2 and the other three are genotype J1.Conclusion The VZV genotype distribution in Tibet was tightly related to their special geographic locations.

Objective To have a knowledge of the mutagenicity of contaminates in drinking water in a certain city. Methods Mutagenic activity of organic extracts of source water chloridized water in water plant and tap water from the city were detected with single cell gel-electrophoresis mouse primary hepatocytes in culture were used and Ames test. Results For Ames test the organic extract in 3 liters chloridized water in water plant and tap water samples produced positive result and that in 6 liters source water sample still gave a negative result. For single cell gel-electrophoresis test the organic extract in 0.1 liter chloridized water in water plant tap water and 0.5 liter source water produced positive result. Conclusion The sensitivity of single cell gel-electrophoresis with primary hepatocytes in detection of genotoxicity of cloridized water and source water is much higher than Ames test.

OBJECTIVE To investigate the clinical efficacy of microwave ablation in treating snoring and obstructive sleep apnea hypopnea syndrome(OSAHS). METHODS Eight patients with snores and 48 with OSAHS were included in the study. They all received micro-surgeries including plastic operations on the uvula and soft palate,tonsil ablation and tonsillectomy,inferior nasal concha and adenoid ablation,and de-volume of the tongue root. Symptoms six months before and after surgery were monitored by Polysomnography(PSG). RESULTS In 56 cases, the patients’ throats were widened. The mean values of the apnea hypopnea index(AHI), the lowest saturations (LSaO2) and the snoring index were significantly different before and after surgery(P