Orthodontic tooth movement (OTM) is a very complicate mechano-biological procedure which is accomplished by the remodeling of periodontal tissues via orthodontic force.As the connective tissue between alveolar bone and cementum,periodontal ligament plays a vital role in the response and conduction of orthodontic force.The susceptible response of periodontal ligament to orthodontic force during OTM is a critical factor on inducing and modulating periodontal tissue restitution.This article reviews the concrete role of periodontal ligament and its mechano-biological behavior during OTM,discusses its mechanical response and biological mechanism respectively on histological,cellular and moleucular levels.

The initiation and development of diabetic chronic complications is associated not only with the level of blood glucose,but also with the glucose fluctuation.The damage in large artery and microvessel may be caused by glucose fluctuation.There are two causes which induce glucose fluctuation in clinical:one is postprandial hyperglyceamia with not well controlled,the other is hypoglycemia causes by unsuitable therapy.A lot of effective new types of substances were applicated in clinical,such as ?-glucosidase inhibitor,glinide-insulin secretagogus,fast-acting and long-acting insulin analogues.With these new powerful tools,there is possibility to treat diabetes more correctly and safely,and control the blood glucose in a stable and good level.

Venous thrombotic disease is a serious disease,which impact on health and life-threatening.Pulmonary embolism and deep-vein thrombosis are the two components of a single disease called venous thromboembolism in obstetrics and gynecology.but it can be difficult to diagnose because clinical symptoms and signs are non-specific or absent in early venous thrombus embolism (VTE).It has great value that how to use the most economic,simple,efficient method for screened high-risk groups,timely and accurate laboratory diagnosis of VTE.

The clinical data and ultrasound findings of 185 patients with thyroid nodules undergoing thyroidectomy from June to December 2015 were retrospectively reviewed.Postoperative pathology confirmed malignant thyroid nodules in 86 cases and benign nodules in 99 cases.The ultrasonographic findings showed that there were significant differences in obscure boundary [51％ (44/86) vs.16％ (16/99)],hypoecho [(95％ (82/86) vs.27％ (27/99)],internal micro-calcification [63％ (54/86) vs.21％ (21/99)] and lymph node enlargement [33％ (28/86) vs.5％ (5/99)] between malignant and benign nodules (all P ＜ 0.05).The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of thyroid imaging reporting and data system (TI-RADS) in differentiation of malignant and benign thyroid nodules were 77％ (66/86),86％ (85/99),83％ (66/80),81％ (85/105) and 82％ (151/185),respectively.The positive rates of thyroid globulin antibody(TGAb) and thyroid peroxydase antibody (TPO-Ab) in malignant nodules [6％ (5/79) and 25％ (20/79)] were significantly higher than those in benign nodules [0 (0/94) and 12％ (11/94)] (both P ＜0.05).There was no significant difference in free T3 (FT3),free T4 (FT4) and TSH between the two groups [(4.91-± 0.78) vs.(4.93-± 1.98) pmol/L,(13.57 ±2.22) vs.(13.58 ±2.17)pmol/Land(1.78±1.40) vs.(1.88±2.36)mU/L] (allP＞0.05).The results indicate that TI-RADS grading and thyroid immunity index are valuable for differential diagnosis of thyroid nodules.

Objective:To investigate the clinical efficacy of loratadine combined with compositus mentholi cream in the treatment of infantile with external ear eczema and evaluate the safety .Methods:Totally 96 cases of infantile with external ear eczema were ran-domly divided into the observation group (n=48) and the control group (n=48) according to a random number table .Both groups were given the conventional treatment .The control group was treated with topical compositus mentholi cream , while the observation group was treated with loratadine additionally .Both groups were treated for 10 d.The clinical efficacy , the level changes of interleukin-4 (IL-4), interferon-γ(IFN-γ) and immunoglobulin-E (IgE) before and after the treatment, the incidence of adverse reactions during the treatment and the relapse after 6-month follow-up were compared between the groups .Results:The total effective rate of the obser-vation group (95.83%) was significantly higher than that of the control group (79.17%, P<0.05); the levels of IL-4, IFN-γand IgE in both groups were significantly decreased after the treatment (P<0.05), and those in the observation group were significantly lower than those in the control group (P<0.05);there was no significant difference in the incidence of adverse reactions between the groups (P<0.05); the recurrence rate in the observation group (8.33%) was significantly lower than that in the control group (22.92%, P<0.05).Conclusion:The clinical efficacy of loratadine combined with compositus mentholi cream in the treatment of infantile with external ear eczema is reliable with promising safety .

Objective To study the effect of reconbinant growrh hormone(rGH) on the tumor cell proliferation in the transplantation liver tumor models in rats,to explore the advantages and disadvantages of rGH in the treatment of liver carcinoma.Methods The male weaning rats were used to vaccinate and transgenerate by intraperitoneal injection of abdominal fluid contarning tumor cells from the celiar transplantation tumor rats, the others weaning rats were used to be the solid tumor rats by subcutaneous vaccination with abdominal fluid of tumor cells.The solid tumor were divided into pieces (2 mm?2 mm?3 mm),which were inserted into the liver of the 82 adult male rats to establish the transplantation liver tumor models.and then the models were divided into experimental group and control group randomly.After 3 days,experimental group were given rGH (0.5U/ kg?d)and control group were given via caudal vein NS for 5 days.All the rats were killed in 8d,10d,12d,respectively.The rats, tumors and livers were weighted,the number of hepatocytes,carcinoma cells and mitotic index were measured,the number of 3 H-TdR incorporation in vivo was measured in 8 days after operation. Results There were no significant difference in all the results between the two groups,except the rat's weight of 8days after operation and the tumor weight in different phase.Conclusions The rGH has no significant effect on the proliferation of tumor cell in transplantation liver models in rats.

ObjectiveTo develop the military acute stress scale and examine the reliability and validity of this scale.MethodsBased upon the previous acute stress researches and the rule of psychometrics,the military acute stress scale was compiled according to open-ended inventory survey.A total of 630 personnel were chosen by random cluster sampling,and tested with this scale,50 of them were tested by Chinese Military psychosomatic health Scale simultaneously,and 50 of them were retested after two week.The reliability and validity were examined by exploratory factor analysis,confirmatory factor analysis and correlation analysis.ResultsThe military acute stress scale was comprised of 9 factors and one lie sub-scale ; Main fit indexes of model were the following CMIN =1219.476,DF =593,P =0.000,CMIN/DF =2.056,IFI =0.927,TLI =0.902,CFI =0.924,RMSEA =0.059; The conrelation coefficients between subscales and subscales were 0.284-0.572.The correlation coefficients between subscales and total scale were 0.700 ～ 0.846 (P ＜ 0.05 or 0.01 ) ; The correlation coefficients was significant between this scale and Chinese military psychosomatic health scale.The correlation coefficients were 0.338-0.962 (P ＜ 0.01 ).The test-retest correlation coefficients of total scale and subscales were 0.379-0.909 (P ＜ 0.01 ).The Cronbaeh's α coefficients were 0.606-0.926 ; and the split-half correlation coefficients were 0.466-0.855.ConclusionThe military acute stress scale has acceptable psychometrics properties on reliability and validity.

Objective To evaluate application effectiveness of quality control circle (QCC)in increasing the face mask wearing rate of hospitalized pulmonary tuberculosis (TB)patients.Methods Nine nurses in department of tu-berculosis formed a ‘circle’,the theme of ‘improving the face mask wearing rate of hospitalized pulmonary TB pa-tients’was established,rectification measures were formulated and implemented,face mask wearing rates of pa-tients before and after implementing QCC activities were analyzed statistically.Results The face mask wearing rate of hospitalized pulmonary TB patients after implementing QCC activities was higher than that before implementing QCC activities (87.50% [147/168]vs 65.54%[116/177],P <0.05).The abilities of every ‘circle member’have been improved in the following aspects:problem-solving skills,sense of responsibility,communication skills,self-confidence,team working,enthusiasm,quality-control techniques,and cooperation abilities,the total average score increased from 23.78 before implementing QCC to 33.78 after implementing QCC.Conclusion QCC activities can not only improve the face mask wearing rate of hospitalized pulmonary TB patients,but also enhance circle mem-bers’quality-control skills and team spirit.

Cervical artery dissection (CeAD) is an important cause of ischemic stroke in young adults w ith ischemic stroke. The clinical manifestations are often local facial pain, Horner syndrome, and ischemic stroke. With the development of noninvasive imaging, many patients w ith CeAD have got early diagnosis. Thromboembolism is an important mechanism of its pathogenesis. Timely giving anticoagulation therapy is reasonable. How ever, anticoagulants may lead to intramural hematoma expansion; therefore, there are also people w ho support antiplatelet therapy. How ever, the effectiveness of the 2 regimens needs to be confirmed by randomized trials. The recently completed Cervical Artery Dissection in Stroke Study (CADISS) in patients w ith stroke is the first prospective study aiming at the problem. The results have show ed that there w as no significant difference in efficacy betw een the anticoagulants and the antiplatelet drugs. Thrombolysis in patients w ith acute CeAD can not increase the risks of hemorrhage, and the rate of good functional outcome is similar to that of the control group. Therefore, it can be used as a treatment method in acute phase. For patients w hose antithrombotic treatment is invalid or having contraindications and repeated recurrent stroke can conduct endovascular intervention or surgical treatment. Usualy, the prognosis of patients w ith CeAD is better. The stroke recurrence rate is low . The abnormal arterial w als in more than half of the patients w il disappear at 3 to 6 months.

Adult ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Estrogens ; therapeutic use ; Female ; Humans ; Phytotherapy ; Primary Ovarian Insufficiency ; drug therapy ; Progesterone ; therapeutic use