0. 05). Conclusion Chronic fluorosis has no obvious effect on myocardial collagen metabolism of rats and myocardial collagen is not likely the main target of fluoride.

Objective To evaluate the perfectibility of colposcopy directed biopsy for the diagnosis of cervical intraepithelial(CIN)through cervial conization by loop electrosurgical excision procedure(LEEP).Methods Biopsy by colposcopy and biopsy after LEEP were analyzed retrospectively in 108 cases of cervical intraepithelial neoplasia to study the related factors of affecting the coincidence rate.Results Comparison of pathological hanges following both LEEP and colposcopy showed that 69 cases were the same,24 upgrade,and 15 downgrade.Conclusion LEEP is a kind of effective and perfect method for the specific diagnosis and treatment of CIN.Colposcopically directed biopsy has its limitations.

Objective To discuss the reason of pain on the shoulders and epigastrium after the reprotenal laparoscopic operations. Methods One hundred and eight patients had undergone the laparoscopic adrenalectomy or laparoscopie renal cyst unroofing. They were divided into two groups at random, group A and group B. In group A, discharged CO2 as soon as finished the operation, but did not in group B. At the same period, there were 49 patients who had received retroperitoneal laparoscopic radical nephrectomy, divided into two groups by the CO2-pheunopertomeum time, group C and group D. In the group D, the CO2-pheunopertomeum time was over 90 minutes, and the time was less than 90 minutes in the group C. Evaluated the pain degree through the vision analogue score (VAS) and recorded the pH,PaO2, PaCO2,BE in the arterial blood in group A and B before and after operation. Results The incidence rate of pain postoperation was significantly higher in group B than A (P < 0.05). In group A and group B, there was no difference in PaCO2, PaO2, pH, BE in the arterial blood(P > 0.05 ). The incidence rate of pain and the grade of VSA both were significantly higher in group D than group C (P < 0.05). Conclusions The stimuli of acid materials such as carbonate that derived from postoperative residual CO2 is probably the main cause of the pain on the shoulders and epigastrium after the laparoscopicsurgery.

The spores suspension of Streptomyces roseosporus D-38 irritated with 20mW He-Ne laser for 20 min were incubated on G1 medium plates containing 1. 9?g/mL of streptomycin. Ten percent of mutants increased the potency of daptomycin by streptomycin-resistance method, including the mutant LC-54, which could produce daptomycin 81. 2 mg/L, which was 39% higher than that of the beginning strain by flask fermentation.

Objective To study the stability of micro-implant orthodontic anchorage(MA)with different pitch in the case of immediate loading.Method Employing 3D finite element analysis method,the stress and dis-placement distribution on the bone interface of MIA with different pitch(0.3 mm、0.5 mm、0.7 mm and 1.0 mm,respectively),which was 1.47 N loaded vertically in the major axis direction,were analyzed.Result The pitch affected the stress distribution significantly,because the maximum stress increased with the pitch decreasing and the impact of pitch on stress distribution on neck and central locations of MIA were different;to decrease the pitch could reduce the max displacement of the jaw,but the impact of pitch on displacement distribution of MIA was not significant.Condusions In the case of immediate loading.MIA with pitch 0.5 mm-0.7 mm is suggested to be selected as orthodontic anchorage in the clinic.

Objective To study the stability of micro-implant orthodontic anchorage(MA)with different pitch in the case of immediate loading.Method Employing 3D finite element analysis method,the stress and dis-placement distribution on the bone interface of MIA with different pitch(0.3 mm、0.5 mm、0.7 mm and 1.0 mm,respectively),which was 1.47 N loaded vertically in the major axis direction,were analyzed.Result The pitch affected the stress distribution significantly,because the maximum stress increased with the pitch decreasing and the impact of pitch on stress distribution on neck and central locations of MIA were different;to decrease the pitch could reduce the max displacement of the jaw,but the impact of pitch on displacement distribution of MIA was not significant.Condusions In the case of immediate loading.MIA with pitch 0.5 mm-0.7 mm is suggested to be selected as orthodontic anchorage in the clinic.

Objective:To discuss the effect ofChinese herbal medicine ofremoving toxic and blood stasis and nourishing yin on lymphocyte apoptosis in spleen ofMRL/lpr mouse and expression ofCyt-C and Bcl-2.Methods:50 2-month-old male MRL/lpr mouse and 10 2-month-old male C57BL/6 mouse were randomly divided into six groups:high, middle and low dosage groups, pre-treatment group, model group and control group.After 30days treatment, the lymphocyte apoptosis in spleen oflupus mouse and expression ofCyt-C mRNA and Bcl-2 mRNA were detected.Results:The percentages oflymphocyte apoptosis in model group were(57.18?1.72)% lower than that in normal group(78.99?3.76)%(P

BACKGROUND:There is evidence that internal fixation through an anterior or posterior approach for treatment of severe kyphotic deformity in spinal tuberculosis exhibits good curative effects. However, few prospective, long-term fol ow-up case control studies are reported. OBJECTIVE:To investigate the efficacy and safety of cobalt al oy pedicle screw implantation for treatment of severe kyphotic deformity in spinal tuberculosis. METHODS/DESIGN:This is a prospective, single-center, self-control, open-label trial, which wil be performed at the Affiliated Hospital of Hebei University, China. Eighty-four patients with severe kyphotic deformity in spinal tuberculosis wil be included according to the diagnosis criteria. Among 52 patients with tuberculosis of the thoracic spine, 28 wil undergo surgery through a posterior approach, and 24 through an anterior approach. According to the Frankel Grade classification, grade C, D and E spinal cord function wil be assessed in 8, 31 and 13 patients, respectively. Surgery through a posterior and anterior approach wil be respectively performed in half of 32 patients with tuberculosis of the lumbar spine. Grade C, D and E spinal cord function wil be assessed in 7, 14 and 11 patients, respectively. The primary outcome measure of this study wil be the Cobb angle at the thoracic spine segments before and 2 years after surgery, which wil be used to evaluate the angle of the spine curvature at the thoracic segments. The secondary outcome measures wil be X-ray scan or MRI findings before and 2 years after surgery, which wil be used to evaluate vertebral fusion after internal fixation;and Frankel Grade before and 2 years after surgery, which wil be used to evaluate recovery of spinal cord function after injury. Other outcome measures wil include multiple logistic regression analysis results of the factors that influence patient's curative effects and the incidence of adverse events 2 years after surgery. The trial protocol has been approved by the Ethics Committee, Affiliated Hospital of Hebei University, China and wil be performed in strict accordance with the Declaration of Helsinki, formulated by the World Medical Association. Signed informed consent regarding the trial protocol wil be obtained from each participant. DISCUSSION:This study is to validate that cobalt al oy pedicle screw implantation shows precise curative effects in the treatment of severe kyphotic deformity in spinal tuberculosis and to analyze through what approach, posterior or anterior, internal fixation wil be more beneficial to surgery performance. The outcomes of this study wil provide objective long-term fol ow-up evidence for internal fixation treatment of severe kyphotic deformity in spinal tuberculosis in the clinic.

OBJECTIVETo investigate the correlation of vasectomy with the risk of prostate cancer in Chinese men.

METHODSWe systematically searched the databases CNKI, VIP, Wanfang, PubMed, Embase, and Cochrane Library for the literature relating the relationship between vasectomy and the risk of prostate cancer in Chinese males up to December 2014. According to the inclusion and exclusion criteria, two investigators independently selected the eligible publications, evaluated their quality, and extracted relevant information, followed by a meta-analysis with the software STATA 12.0.

RESULTSNine studies were included in the analysis involving 1 202 cases of prostate cancer and 4,496 controls. Random-effect model analysis revealed no statistically significant correlation between vasectomy and the risk of prostate cancer (OR = 1.05; 95% CI 0.62-1.79), with an obvious heterogeneity (P < 0.001, I2 = 85.7%). No significant publication bias was found among the included studies (Egger, P = 0.824; Begg, P = 0.348).

CONCLUSIONThe results of our meta-analysis do not support the association of vasectomy with the increased risk of prostate cancer in Chinese population.

Asian Continental Ancestry Group ; China ; Humans ; Male ; Prostatic Neoplasms ; ethnology ; etiology ; Risk Assessment ; Vasectomy ; adverse effects

Objective:To investigate the clinical significance of peripheral blood neutrophil to lymphocyte ratio in patients with 2 type diabetes mellitus complicated acute cerebral infarction, so as to provide theoretical basis for clinical diagnosis and treatment. Methods:From Jan. 2014 to Dec. 2016 year,136 patients with 2 type diabetes mellitus complicated acute cerebral infarction were selected as research group and 68 diabetic patients undergoing physical examination were selected as the control group. White blood cell count(WBC),neutrophil count(NC),lymphocyte count(LC) and neutrophil to lymphocyte ratio(NLR) were detected and calculated. The role of WBC,NC,LC and NLR in the diagnosis of type 2 diabetes mellitus combined with acute cerebral infarction were evaluated by receiver operating characteristic curve(ROC) and area under the curve(AUC). Results:The levels of WBC,NC and NLR in research group were significantly higher than those of in control group(P＜0. 05),while the level of LC was significantly lower than that of in control group(P＜0. 05). The levels of WBC,NC and NLR in research group increased with the increase of NIHSS score(P＜0. 05),and the level of LC decreased with the increase of NIHSS score(P＜0. 05). The area under the curve of NLR,WBC,NC and LC in diagnosing diabetes combined with acute cerebral infarction were respectively 0. 856,0. 717,0. 685 and 0. 321. The sensitivity were respectively 0. 838,0. 596,0. 517 and 0. 208. The specificity are respectively 0. 868,0. 838,0. 793 and 0. 559. Conclusion:NLR could be used as a marker for the diagnosis of type 2 diabetes with acute cerebral infarction.