One cases of vertically fractured molar was treated by following methods:the gap was exparded,the furcation lesion was drained;then a fixed prosthesis was inserted to restore the affected area.No symptom was observed in 2-year follow-up.

Objective To explore the improvement of teaching effects for clinical medical undergraduates by combining methods of lectures and simulations practice.Methods Totally 40 2007 grade five-year clinical medical undergraduates were randomly divided into five groups,eight undergraduates each group.During clinical practice of anesthesiology teaching in the fifth semester,mini-lecture combing theoretical lesson with simulations practice was conducted for 45 rain including preoperative preparation,spinal epidural anesthesia,general anesthesia,brachial plexus block and cervical plexus block.Results were evaluated by questionnaires.40 copies were handed out and the effective recovery rate was 100％.Results All students approved this kind of teaching activities; 97.5％ believed that it can arouse their interest in study; 95％ wrote down the lectures and operation process,all students listened carefully and operated meticulously.Conclusions Lectures combined with simulations practice promote students' operation capacity and thinking ability thus to raise the basic clinical skills of students.

Objectives: To improve the procedures for establishment of focal cerebral ischemic rat models with the intraluminal suture method and to elevate the survival rate of the models. Methods: Sixty male SD rats (weight, 250-270 g) were randomly allocated into 3 groups (n =20 in each group). Control group used the conventional surgical method, the pterygopalatine arteries were exposed and ligated during the procedure, and the rats had free access to food after the procedure; gavage group used the same method as the control group, but postoperative gavage was performed; protective group did not ligate the pterygopalatine arteries, but the carotid arteries and vagus nerves were carefully separated. Trying to avoid stretching the vagus nerves during the procedure and postoperative gavage was performed. The body weight of the rats in each group was weighed continuously before and after modeling, and the neurological deficit scores were measured; the survival rate of rats in each group was calculated at day 3, 14, and 28, respectively after modeling; the brain infarct volume in each group was calculated at day 28 after modeling. Results: Circled digit oneThe mean time of model production was 19.5 min in the protective group, and it was shorter than that in the control and gavage groups. The differences were statistically significant (P < 0.05); Circled digit twoAt day 3 after modeling, the survival rate of the rats in the protective group was higher than that in the control and gavage groups. The differences were statistically significant (P < 0.05); Circled digit threeAfter modeling, the body weight of the rats in the 3 groups were all decreased. The body weight of the rats in each group began to increase from day 7 after modeling. The body weight of the rats in the protective group was all higher than that in the control and gavage groups at day 7, 14, 21, and 28 after the procedure. The differences were statistically significant (P < 0.05); Circled digit fourthere were no significant differences comparing the neurological deficit scores and cerebral infarction volume among the 3 groups. Conclusion: The improved procedures could shorten the time of model production, regain body weight quickly, improve the survival rate effectively after establishment of the cerebral ischemic rat models.

Schizophrenia is a common but complex mental disorder affected by multiple factors. Forensic psychiatric assessment of schizophrenia involves evaluations on many aspects, but there is no effective biological identification index for schizophrenia. Researches indicate that dysfunction of dopaminergic neurotransmission plays an important role in the pathogenesis of schizophrenia. Our study reviews the classification, genetic structure of dopamine receptors and the recent pertinent studies between the dopamine receptors and schizophrenia and its forensic significance.
Forensic Medicine ; Humans ; Mental Disorders ; Polymorphism, Genetic ; Psychotic Disorders ; Receptors, Dopamine/genetics* ; Schizophrenia/genetics* ; Schizophrenic Psychology

As a characteristic tumor therapy in China, Chinese medicine (CM) plays an important position in comprehensive treatment of tumor. It's a critical issue of objective realization, analysis and evaluation of CM safety for scientific decision-making in tumor safe medication and it also is a pivotal issue which affects the international communication. The safety evaluation of CM includes three phases: pre-clinical safety evaluation, clinical trials (micro-dose studies and traditional clinical trials) and post-marketing CM safety assessment. The key point of evaluation should be distinguished among different stages and various types of CM (such as classic formulas, Chinese herbal extracts, etc). Emphasis should be given to chronic toxicity when evaluating oral Chinese herbal , microdose studies and quality control must be underlined while injection is evaluated and more attention should be pay to the dose-effect relationship and time-effect relationship when turned to toxic Chinese medicine , and so as for the toxicity grading study. Moreover, we should constantly improve CM safety assessment method in various stages of tumor treatment, such as introducing the concept of syndrome classification theory, bringing in metabonomics and real-world research method which are similar to the CM therapeutic concept. Most importantly, we must keep its own feature of CM theory when we learn the concept of safety evaluation from abroad. Actively exploring the anti-tumor medicine safety evaluation methods and strategies is of great significance for clinical and experimental research, and it can provide supportability platform to CM's international communication.
Animals ; Combined Modality Therapy ; Humans ; Medicine, Chinese Traditional ; adverse effects ; methods ; Neoplasms ; therapy ; Safety

Objective: To explore levels of salivary IgA, lysozyme, lactate dehydrogenase, alkaline phosphatase and total proteins in unstimulated (UWS) and stimulated (SWS) whole saliva of caries-free children. Methods: 94 caries-free children, aged from 42 to 54 months, were recruited from urban kindergartens in Beijing. 2 ml UWS and 2 ml SWS were collected from each child to measure salivary IgA, lysozyme, lactate dehydrogenase, alkaline phosphatase and total proteins. Results:1) There were no differences in salivary proteins between boys and girls in both UWS and SWS, except total proteins. In UWS, the concentration of total proteins in girls was lower than that in boys (P0.05). 2) The concentration of IgA in SWS was significantly lower than that in UWS (P0.05). Conclusion:In 3-to 4-year old children, the protein composition in stimulated whole saliva is different from that in unstimulated whole saliva, and it is also different between genders. Therefore, it is more reliable to measure salivary proteins in both UWS and SWS when studying saliva of children.

Objective:To investigate the clinical effects of Paclitaxel and Carboplatin combination chemotherapy with concurrent intensity-modulated radiotherapy for elderly patients with advanced cervical cancer.Methods:From February 2107 to July 2018, 82 patients with advanced cervical cancer were enrolled from our hospital.According to the treatment plan, they were divided into the observation group(patients with Paclitaxel/Carboplatin chemotherapy + concurrent intensity-modulated radiation therapy)and the control group(patients with conventional chemotherapy). Clinical effects and the occurrence of toxic and side effects were evaluated and analyzed for the two groups.Results:The overall rate of effectiveness for the observation group was 92.7%, which was higher than that for the control group(75.6%), and the difference was statistically significant( χ2=4.479, P=0.034). The tumor metastasis rate was lower in the observation group than in the control group(2.4% vs.14.6%, χ2=3.905, P=0.048). The incidence of gastrointestinal side effects > grade Ⅲ was lower in the observation group than in the control group(8.1% vs.45.5%, χ2=12.736, P=0.000). Conclusions:Paclitaxel and Carboplatin plus intensity-modulated radiotherapy for elderly patients with advanced cervical cancer can help keep tumor size under control, reduce the risk of toxic and side effects during treatment, alleviate patient suffering, and ensure a smooth treatment experience.

BACKGROUND:With the prevalence of total hip arthroplasty,the demand for revision has been increased due to the prosthesis life and various complications.OBJECTIVE:To retrospectively analyze the reasons and clinical effectiveness of revision,clinical application of revision prosthesis,and related revision techniques.METHODS:Clinical data of 85 patients undergoing total hip revision were analyzed retrospectively.Among which,there were 23 cases of biological T.O.P acetabular cup (allograft bone graft) plus polyethylene liner,51 cases of titanium mesh cup plus bone cement fixation,and 11 cases of common acetabular cup;common hip stem in 63 cases (including 47 cases of bone cement fixation);lengthened hip stem in 34 cases (16 cases of modular prosthesis and 18 cases of bone cement fixation).Subsequently,the hip function was assessed by Harris hip scores.RESULTS AND CONCLUSION:All cases were followed up,and the mean follow-up was 30.2 months.(1) The average Harris hip scores changed from preoperative 30.07 to postoperative 90.32.The wound healed well,no dislocation or infection,and the hip function was improved significantly.(2) To conclude,aseptic loosening of the prosthesis is the main cause of reversion occurred,followed by prosthesis dislocation.Acetabular wall bone defect and decrease in bone mass are the main problems in revision.Adequate preoperative preparation for possible and unexpected events,and reasonable selection of prosthesis according to the bone defects will be helpful.Noticeably,early arthroplasty reversion will obtain good clinical efficacy.

[Objective]To explore LIU Wansu's methods in treating fire and heat disease from depression of yang qi.[Methods]To analyse LIU Wansu's understanding of fire and heat disease and highlight its treatment from depression of yang qi through reading his works like Exploration to Pathogenesis in Plain Questions,Yellow Emperor's Plain Questions on Xuanminglun Formulae and so on.[Results]LIU Wansu had profound medical knowledge,rich clinical experience and initiative spirit.Under the guidance of nineteen items of pathogenesis from Huangdi's Canon of Medicine,he expanded fire and heat disease and put up six exogenous pathogenic factors can transfer to fire theory.To be specific,excessive wind,cold,dampness and dryness would block Xuan Fu and depress yang qi,causing fire and heat disease.He regardeddepression of yang qi as a key link in six exogenous pathogenic factors' transferring to fire and put up cooling combined with ventilating method to dissipate depressed yang qi,including relieving exterior syndrome with pungent-cool drugs,clearing depressed heat,relieving exterior and interior syndrome,eliminating dampness and relieving depression as well as combination of cold and warm drugs.[Conclusion]LIU Wansu treated fire and heat disease from depression of yang qi,providing new methods in treating fire and heat disease for later generations as well as guiding significance in current clinical work.