Objective: The purpose of this article is to characterize the teeth, jaws and soft tissues of the patients with bimaxillary protrusion in south China.Methods: The results of cephalometric analysis of 60 patients with bimaxillary protrusion were compared with the normal occlusions in Beijing. Results: Compared with the normals in Beijing, the mandibles of the subjects were positioned more backward and rotated inferior-posteriorily. The incisors inclined extremely to the labial side and the lower lip was thicker. The mental thickness was less than the normal, and the mental contour was not clear. The middle face was eminent. Conclusion: The results suggest it is of critical importance to manage to adjust the position of jaws, to control the molar anchorage strictly, and to achieve the maximal incisor retraction, so as to benefit the improvement of facial features.

BACKGROUND:The selection of metal implant for old patients with femoral intertrochanteric fracture should focus on patient’s age, osteoporotic degree, perioperative status and type of fracture. Individual therapeutic program should be made. OBJECTIVE:To compare the therapeutic effects of four types of metal implant fixation for femoral intertrochanteric fracture in old patients. METHODS:180 old patients with femoral intertrochanteric fractures treated from September 2009 to September 2012 were analyzed. Four kinds of metal implants were used for repair of fracture. There were 45 patients in the dynamic hip screw group, proximal femoral nail anti-rotation group, Gamma nail group and anatomical dynamic hip lock nickelclad group, separately. Operation time, blood loss, hospital time, Harris score after operation, fracture healing time and complications in different groups were compared. RESULTS AND CONCLUSION:Operation time and hospital time were shorter, and blood loss was fewer in the anatomical dynamic hip lock nickelclad group and proximal femoral nail anti-rotation group compared with the dynamic hip screw group and Gamma nail group (P<0.05), but the excellent and good rate of Harris score after operation was higher (P<0.05). No significant difference was detected between anatomical dynamic hip lock nickelclad group and proximal femoral nail anti-rotation group (P>0.05). The incidence of complications was significantly lower in the anatomical dynamic hip lock nickelclad group and proximal femoral nail anti-rotation group compared with the Gamma nail group and dynamic hip screw group (P<0.05). Results suggested that anatomical dynamic hip lock nickelclad and proximal femoral nail anti-rotation are reliable in treatment of intertrochanteric fracture in old patients, show less postoperative complications, and are ideal choices for implant fixation of femoral intertrochanteric fracture in old patients.

Aim To observe whether the mechanosensitive ion channel Piezo1 was involved in the senescence of atrial fibroblasts by activating β-catenin based on our previous study which found marked increase of Piezo1 mRNA in senescent atrial fibroblasts. Methods Primary mouse atrial fibroblasts (MAFs) were isolated from male C57BL/6 mice (3-4 weeks) by enzyme digestion, and tert-butyl hydroperoxide (TBHP) was used to induce the senescence of cells. The ratio of senescent cells was detected by senescence-associated β-galactosidase (SA-β-Gal) staining. The protein levels of Piezo1, β-catenin/p-β-catenin, senescence-associated proteins p53 and p21 in the cells treated with TBHP (100 μmol · L

OBJECTIVE: To analyze the prevalence and risk factors of hyperuricemia in male workers in a petrochemical enterprise. METHODS: A total of 1 604 male workers in a petrochemical production enterprise was selected as the study subjects using judgment sampling method. The living habits and health status of the workers were investigated, and the related examination results of hyperuricemia were collected through the “Occupational Health Surveillance and Monitoring Information System” independently developed by Guangdong Province Hospital for Occupational Disease Prevention and Treatment, and the influencing factors were analyzed. RESULTS: The prevalence of hyperuricemia in male workers was 29.6%(474/1 604). Multivariate Logistic regression analysis showed that high diastolic blood pressure, high triglyceride(TG), overweight and obesity were risk factors for hyperuricemia in male workers after excluding age, smoking and other confounding factors(all P<0.01). The results of restricted cubic spline model showed that there was a linear dose-response relationship between hyperuricemia and body mass index and diastolic blood pressure( χ~2=36.19 and 21.46, all P<0.01), and a non-linear dose-response relationship between hyperuricemia and TG( χ~2=14.56, P<0.01). CONCLUSION: The risk factors for hyperuricemia among male workers in the petrochemical enterprise included elevated diastolic blood pressure, elevated TG, overweight and obesity, and there was a dose-response relationship.

BACKGROUNDRRM1 may be a prognostic factor in non-small cell lung cancer (NSCLC). The aim of this study is to evaluate RRM1 expression and prognosis in NSCLC by the means of tissue microarray.

METHODSA total of 417 paraffin-embedded specimens of NSCLC from Lung Cancer Study Center in Guangdong Provincial People's Hospital were collected and tissue microarray was constructed. RRM1 expression was detected by SP method and its correlation with prognosis was evaluated.

RESULTSNo statistic difference was found in RRM1 expression in different gender, age, tumor site, histology, differentiation, T stage, N stage, M stage and pTNM stage groups (P > 0.05). Univariate analysis showed that RRM1 was not an independent prognostic factor (P > 0.05). At the multivariate analysis, differentiation and N stage were considered independent prognostic factors.

CONCLUSIONSRRM1 expression detected by immunohistology is not an independent prognostic factor in NSCLC. TNM stage is still the best prognostic factor up to now.

Massive burn trauma is characterized by hypovolemic shock induced by the loss of plasma from vessels. The major reasons for this systemic microvascular leakage in burns include an increase in vascular permeability triggered by inflammatory mediators and the increase of vascular hydrostatic pressure caused by vessel dilation. The maintenance of normal vascular permeability depends on the integrity of endothelial barrier function regulated by the interaction of intracellular junctions, cell-matrix adhesion and the cytoskeleton contractile force. This review summarizes some recent discovery in endothelial mechanisms during burn-induced vascular hyperpermeability.
Actins ; metabolism ; Burns ; metabolism ; physiopathology ; Capillary Permeability ; Cytoskeleton ; metabolism ; Endothelium, Vascular ; metabolism ; Humans ; Myosin-Light-Chain Kinase ; metabolism ; rho-Associated Kinases ; metabolism

Increase of microvascular permeability is one of the most important pathological events in the pathogenesis of trauma and burn injury. Massive leakage of fluid from vascular space leads to lose of blood plasma and decrease of effective circulatory blood volume, resulting in formation of severe tissue edema, hypotension or even shock, especially in severe burn injury. Fluid resuscitation has been the only valid approach to sustain patient's blood volume for a long time, due to the lack of overall and profound understanding of the mechanisms of vascular hyperpermeability response. There is an emerging concept in recent years that some so-called barrier stabilizing mediators play a positive role in preventing the increase of vascular permeability. These mediators may be released in response to proinflammatory mediators and serve to restore endothelial barrier function. Some of these stabilizing mediators are important even in quiescent state because they preserve basal vascular permeability at low levels. This review introduces some of these mediators and reveals their underlying signaling mechanisms during endothelial barrier enhancing process.
Burns ; Capillary Permeability ; Fluid Therapy ; Humans ; Permeability

OBJECTIVETo observe the clinical effect of Chinese medicine for nourishing yin and clearing heat therapy (CM therapy) in treating nasopharyngeal carcinoma (NPC) patients with yin deficiency-induced inner heat syndrome, and suffered from acute radiation oral mucositis.

METHODSSixty patients with NPC fitting to the inclusion criteria and undergoing initial dose radiotherapy were assigned to two groups. The 31 patients in the treatment group received CM therapy, and the 29 in the control group were treated with standard Western medical therapy. The condition of oral mucosa and epidermal growth factor (EGF) content in saliva of patients during the therapeutic period were observed, meanwhile the quality of life (QOL) of patients was estimated with the quality of life questionnaire-core 30 (QLQ-C30) issued by European Organization for Research and Treatment of Cancer (EORTC).

RESULTSAcute radiation oral mucositis occurred in all patients, but the severity in the treatment group was milder than that in the control group (P < 0.01). Salivary EGF content decreased along with the increasing radiation dosage, it decreased significantly when 40 Gy radiated and down to the minimum when 70 Gy radiated, but the decrement in the treatment group was less than that in the control group (P < 0.01). Comparison of QOL by QLQ-C30 scale showed that after radiotherapy the global health status in the treatment group was superior to the control group (P < 0.01).

CONCLUSIONChinese medicine for nourishing yin and clearing heat therapy could actually postpone the occurrence of acute radiation oral mucositis, lessen the adverse reaction of radiotherapy and improve patient's QOL, show a favorable effect in prevention and treatment, and has definite application value for clinical spreading.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; radiotherapy ; Phytotherapy ; Quality of Life ; Radiotherapy ; adverse effects ; Stomatitis ; drug therapy ; etiology ; prevention & control ; Yin Deficiency ; drug therapy ; Young Adult

Child ; China ; epidemiology ; Disease Outbreaks ; Female ; Humans ; Influenza A Virus, H1N1 Subtype ; Influenza, Human ; epidemiology ; virology ; Male ; Prevalence ; Schools

Accidents, Traffic ; Child ; Humans ; Risk Factors