China ; Humans ; Mouth Diseases ; Mouth Mucosa

Administration, Topical ; Humans ; Immunosuppressive Agents ; administration & dosage ; adverse effects ; therapeutic use ; Lichen Planus, Oral ; complications ; drug therapy ; pathology ; Oral Ulcer ; drug therapy ; etiology ; Tacrolimus ; administration & dosage ; adverse effects ; therapeutic use ; Treatment Outcome

Objective To understand adolescent's mental stress, coping style and their correlating with emotion. Methods This research, in order to be tried with 5870 middle school students, adopt Mental Stress Questionnaire, Coping Style Scale and Profile of Mood States. Results Compared with male students, female students had higher scores on stress from school work achievement and appearance(P＜0.05) and lower scores on stress from family[(2.04±1.19)vs(2.11±1.25)](P＜0.05),also they had higher sores on extra-coping style[(3.11±0.77)vs(2.77±0.81)](P＜0.01). Compared with lower grade students, higher grade students had higher scores on all mental stress except stress from family, while they had lower scores on extra-coping style (P＜0.01). Stepwise logistic regression analysis indicated that high scores on mental stress and intro-coping style could predict negative emotion (P＜0.01), and extra-coping style could predict positive emotion (P＜0.01).Conclusion The middle school students suffered more stress from school work achievement than from other aspects. Students who differed in sex, grade had significant different scores on mental stress and coping style. Mental stress and coping style could predict adolescents' emotion.

Quantitative measurement of strain distribution of arterial vessel walls due to pulsatile blood flow within the vascular lumen is valuable for evaluating the elasticity of arterial wall and predicting the evolution of plaques. The present paper shows that the three-dimensional (3D) strain distribution are estimated through uni-directional coupling for 3D vessel and blood models reconstructed from intravascular ultrasound (IVUS) images with the computational. fluid dynamics (CFD) numerical simulation technique. The morphology of vessel wall and plaques as well as strain distribution can be visually displayed with pseudo-color coding.
Arteries ; diagnostic imaging ; physiology ; Elasticity ; Hemodynamics ; Humans ; Imaging, Three-Dimensional ; Pulsatile Flow ; Ultrasonography

Objective To investigate the clinical characteristics of clavicular defect and nonunion after operation and evaluate the clinical effects of vascularized pedicled pectoralis major clavicular periosteal flap and locking plate fixation plus bone morphogenetic protein (BMP) implantation. Methods From January 2004 to April 2008, 12 patients (mean age, 42.8 years old) with clavicular defect and nonunion were treated in Zhongshan Hospital. The internal fixators were removed, and then fibrous scars and sclerotic bones were cleared. The clavicular detects were fixed with locking plate, with implantation of the BMP. The wound was covered with vascularized pedicled pectoralis major clavicular periosteal flap. Postoperative functional rehabilitation exercises were performed. Results All patients were followed up for 8-24 months (mean 1.2 years). The clinical results were evaluated by Constant-Murley scoring system. The clavicular defects were healed in all patients within 4-7 months, and the internal fixators were successfully removed from some of the patients. Conclusions Vascularized pedicled pectoralis major clavicular periosteal flap combined with locking plate fixation plus BMP implantation is effective in the treatment of clavicular defect and nonunion.

5?,dislocation of joint,instability of screws and plates and penetration of the screws into the joint surface.[Conclusion]Incorrect preoperative evaluation of the injury severity,incorrect judgement of the fracture type,improper operation indications,improper selection of internal fixation methods,nonstandard technique of bone graft and failure to reach anatomic reduction are the main causes of internal fixation failure.

By the routine electron microscopy the ultrastructure of the epididymis of 10 rats is studied.Except the principal cells,there is no significant difference in the ultrastructure of the other cell types of the epididymal epithelium between segments.The principal cell shows the ultrastructural characteristics of secretion and absorption.However,the ultrastructural characteristics of the principal cells in the proximal epididymvs show more tendency to absorbent and that in the distal epididymis show more tendency to secretory.Further-more it is observed that some halo cells are surrounded by small cells which possess long processes.Some or a few number of clear cells in the caudal epididymis contain some crystaloid inclusions in their basal cytoplasm.The presence of the fenestrated capillary in the peritubular tissue is also found.The meaning of the ultrastructures mentioned above is discussed.

The principle of the relative operating characteristic (ROC) curve, along with constructing curve, a cutoff value between therapeutic and non-therapeutic concentration, formula for calculation, and statistic analysis, was introduced. Illustrated by an example, ROC was an important tool in analysis of the fixed effect model. It can beapplied to determine the relationship between a blood concentration and its action, probability of certain concentration producing therapeutic action, and high or low limit of therapeutic window, etc.

The incidence of allergic diseases, including bronchial asthma, atopic dermatitis, allergic rhinitis and food allergies, is increasing year by year.Recently, more and more studies have been conducted to explore the relationship between intestinal microecology and allergic diseases, which indicated that the influence of intestinal flora on the immune system is one of the important mechanisms.This article was based on the immune status and microecology.This article reviewed and explored the important role and mechanism changes of intestinal flora in the early life in terms of the occurrence and development of allergic diseases, and the research progress in the application of probiotics in allergic diseases, aiming to further understand the relationship between intestinal microecology and children allergy and provide new ideas for the prevention and treatment of allergic diseases.

Objective To discuss and analyze clinical pathological characteristics of senile recurrent ovarian cancer and its influences on prognosis.Methods 140 senile ovarian cancer patients who have been admitted in ourhospital were selected as study subjects.103 cases with recurrent ovarian cancer were selected as observation group (group A),and the rest 37 cases who did not suffer from recurrent ovarian cancer were selected as control group(group B).Pathological characteristics of carcinoma tissues after their first admission in our hospital were compared between the two groups.And pathological characteristics of carcinoma tissues of group A after their second admissionin our hospital were analyzed,comprehensively analyzed prognosis situations and clinical pathological characteristics of patients in these two groups.Results In group A,the number of poorly differentiated carcinoma tissues was obviouslymore than group B,and the number of patients whose neoplasm staging was M stage was more than that in group B,the differences between the two groups were significant (x2 =13.48,15.87,all P ＜ 0.05).The incidence rate of adverse reactions between the two groups also had statistical significance(x2 =13.8,11.6,14.5,13.9,14.9,13.4,all P ＜0.05).Conclusion The clinical pathological characteristics of senile recurrent ovarian cancer can reflect patients'prognosis situations in some degree,and has certain clinical value in evaluation of patients' disease recurrence and prognosis.