Gout ; therapy ; Humans ; Integrative Medicine

China ; Occupational Exposure ; Threshold Limit Values ; Ultraviolet Rays

In order to adapting the course construction of anatomy to the needs of medical education in the new situation,we analyzed and summed up the effect of the course construction of anatomy,and put forward some measures such as working out the plan of course construction sci-entifically,perfecting teachers’training,upgrading content of course as well as the teaching methods and means,strengthening the teaching of experiment,reforming the means and contents of evalua-tion and paying attention to the cultivation of students’innovation and manipulative ability.

Objective:To study the influence of prophylactic bilateral salpingectomy during hysterectomy in ovarian function of the premenopausal women with benign uterine disease and its preventive effect on the pelvic diseases(malignant /benign pelvic lesions or pelvic inflammatory disease).Methods:A total of 100 patients with benign uterine disease underwent hysterectomy were collected and divided into two groups,including 50 patients underwent simultaneous hysterectomy and prophylactic bilateral salpingectomy (prevention group) and 50 patients underwent only hysterectomy (control group).The operative time,blood loss,evacuation time,and hospitalization time of the patients in two groups were detected;the antral follicle count,levels of serum estradiol(E2),follicle stimulating hormone(FSH) and luteinizing hormone(LH)) and the incidence of perimenopausal symptoms of the patients in two groups before operation and six months,1 year after operation were compared;the incidence of pelvic disease of the patients after operation were compared.Results:The operative time,blood loss,evacuation time,and hospitalization time of the patients between two groups were not significantly different(P>0.05).Compared with before operation,the antral follicle count and the E2 levels of the patients 6 months and 1 year after operation in two groups were decreased,and the FSH and LH levels of the patients were inc reased (P<0.01).There were no significant differences in the levels of FSH,LH,E2 and the antral follicle count of the patients between two groups 6 months and 1 year after operation(P>0.05).The incidence of perimenopausal symptoms of the patients in two groups 6 months and 1 year after operation showed no significant difference(P>0.05).The incidence of ovarian malignant tumor and ovarian benign tumor of the patients in two groups 6 months and 1 year after operation had no significantly differences (P>0.05).The incidence of pelvic inflammatory disease of the patients in control group was higher than that in prevention group(P<0.05).There were 2 patients diagnosed as tubal carcinoma in control group 1 year after operation,and the pathological findings showed the atypical cells in 2 patients in prevention group.Conclusion:Prophylactic bilateral salpingectomy during hysterectomy does not damage the ovarian function and can reduce the incidence of pelvic malignant/ benign tumor and pelvic inflammatory disease.

BACKGROUND:Compared with smooth titanium, titania nanotubes cannot only induce mesenchymal stem cels osteogenic differentiation and promote bone integration, but also be used as drug nanocarriers. OBJECTIVE:To prepare dexamethasone-loaded titania nanotube system and to test its drug release characteristics. METHODS:Titania nanotubes were prepared by electrochemical anodic oxidation, and dexamethasone was dripped onto the prepared titania nanotubes. Subsequently layer by layer self-assembly technology was employed to fabricate gelatin/chitosan multilayered structure on the prepared samples. Scanning electron microscope and contact angle test were carried out during the process of building the gelatin/chitosan multilayered structure. The drug release was measured by a ultraviolet spectrophotometer. RESULTS AND CONCLUSION:Under the scanning electron microscopy, the fabricated titania nanotubes had integral structure with even tube size of about 70 nm and arranged regularly, and the nanotubes were completely covered and sealed by the gelatin/chitosan multilayered membrane. Contact angle test results showed that ever since the fifth layer, contact angles changed alternately and displayed a zigzag profile. Ultraviolet spectrophotometer test results showed that when cultured for 3 hours, the cumulative drug release was about 32.7% and demonstrated an initial burst folowed by sustained release. When cultured for 24 hours, the cumulative drug release about 52.3%. However, after cultured for 7 days, little drug release was detected. And there was about 8.0%-10.0% dexamethasone of initial loading preserved in nanotubes.

Objective:To study the influence of metformin and paclitaxel in the proliferation and apoptosis of human ovarian cancer SKOV3 cells in vitro, and to clarify the synergistic effect of metformin and paclitaxel. Methods:The ovarian cancer SKOV3 cells were divided into blank control group, different concentrations (0.01, 0.50, 1.00, 5.00, 10.00mmol·L-1) of metformin groups and combined treatment groups(metformin combined with paclitaxel with different concentrations).The inhibitory rates of proliferation of SKOV3 cells after treated with different concentrations of metformin were detected by MTT method.The apoptotic rates of SKOV3 cells after treated with different concentrations of metformin were measured by flow cytometry.The inhibitory rates of proliferation of SKOV3 cells after treated with metformin and paclitaxel were determined by MTT method.Results:The MTT results showed that the inhibitory rates of proliferation of SKOV3 cells in different concentrations of metformin groups were increased in concentration-and timedependent manner;there were significant differences compared with blank control group (P<0.05).The flow cytometry results showed that the apoptotic rates of SKOV3 cells in different concentrations of metformin groups were increased;compared with control group, with the increasing of concentrations of metformin, the apoptotic rates of SKOV3 cells in experimental groups 48 h after treatment were increased significantly (P<0.05);the percentages of SKOV3 cells in G0/G1 phase were decreased with the increasing of metformin concentrations(P<0.05) and the percentages of SKOV3 cells in G2/M phase were increased(P<0.05).The MTT results showed that the inhibitory rate of proliferation of SKOV3 cells in 1.00 mmol·L-1 metformin+paclitaxel group was higher than that in 0.50 mmol·L-1 metformin+paclitaxel group was higher than that in 0.50 mmol·L-1 metformin+paclitaxel group(P<0.05),and the inhibitory rates of proliferation of SKOV3 cells in combined treatment groups were higher than those in paclitaxel alone groups(P<0.05).Conclusion:Metformin inhibits the proliferation of ovarian cancer SKOV3 cells through the induction of apoptosis.Metformin can enhance the cell proliferation inhibition of paclitaxel on ovarian cancer SKOV3 cells.The combination of metformin and paclitaxel has a synergistic reaction on SKOV3 cells.

Objective To investigate CT image features of pleomorphic adenoma and adenolymphoma,and to improve the diagno-sis accuracy.Methods CT data of 1 3 cases of pleomorphic adenomas and 9 cases of adenolymphomas confirmed by pathology were retrospectively analyzed and compared.Results All 1 3 cases of pleomorphic adeonoma were solitary lesions,in which 1 1 cases were located in the non posterior inferior quadrant,and 1 1 cases showed persistent or delayed enhancement,with “slowly forward and slowly quit”enhancement performance.In all of the 9 cases of adenolymphoma,3 cases were multiple lesions.In total of 1 3 lesions, 9 lesions were located in the posterior inferior quadrant,and 9 lesions were significantly enhanced in the arterial phase and enhance-ment was decreased in the delayed phase,which showed “quickly forward and quickly quit”.Conclusion CT image features of pleo-morphic adenoma and adenolymphoma are different.Most of lesions can be diagnosed correctly before surgery by using image fea-tures with clinical information.

Disasters ; Earthquakes ; Humans ; Maxillofacial Injuries ; therapy

BACKGROUND:Insulin-like growth factor-1 (IGF-1) is an important mitogen and an indispensable regulator during normal hair cell development. Extracellular signal regulated kinase 1/2 (ERK1/2) is also expressed in mammalian vestibular organs.OBJECTIVE: To investigate the changes of the expression and the distribution of IGF-1, IGF-1 receptor (IGF-1R) and ERK1/2 in guinea pig's vestibular epithelium following gentamycin injury.DESIGN: A randomly controlled study.SETTING: Department of Otorhinolaryngology, General Hospital of Chengdu Military Area Command of Chinese PLA.MATERIALS: Twenty healthy and adult guinea pigs, weighing 300 to 350 g, provided by the Experimental Animal Center,Fourth Military Medical University of Chinese PLA, were randomly divided into four experimental groups and a control group with 4 in each group.METHODS: The experiment was performed at Department of Otorhinolaryngology Research Laboratory of Xijing Hospital,Fourth Military Medical University of Chinese PLA from January 2002 to May 2002. In the experimental groups,gentamycin was intraperitoneally administered daily (80 mg/kg) for 10 consecutive days. For the control group, 1 mL of 0.9% sterile saline was administered in the same way. The guinea pigs, in which unsteady gait or nystagmus appeared,could be involved in the further experiments. Before being sacrificed, the animals' gait, nystagmus and the amount of food-intake were observed every day. The animals were anesthetized deeply with 50 mg/kg pentobarbital 1, 7, 14 or 21days after the last gentamycin administration and then decapitated. Bilateral otic vesicles were harvested and immersed in 4% paraformaldehyde. Then the specimens were decalcified in 10% ethylenediamine tetraacetic acid (EDTA),thereafter embedded in OCT gel and serially sectioned at a thickness of 10 μm in the cryostat. The behavioral changes of guinea pigs were observed. The morphological changes of vestibular epithelium were examined by hematoxylin and eosin (HE) staining. The expression and distribution changes of IGF-1/1R and ERK1/2 were investigated immunohistochemically. MAIN OUTCOME MEASURES: The behavioral, morphological, expression and distribution changes of IGF-1/1R and ERK1/2 of guinea pigs in each group.RESULTS: Twenty involved guinea pigs entered the stage of final analysis. ① All the guinea pigs' vestibular functions were impaired after gentamycin treatment, then partially restored without any pharmaceutical treatment. ②Morphological injury was obvious after gentamycin treatment, and improved 1 week later. ③The expression of IGF-1/1R was low in the control group, and in the 1-day group it increased significantly to its maximum. After that, its expression decreased gradually, but was still higher in the 21-day group than that in the control group. There were significant differences in the expression of IGF-1/1R among different groups (F =51.8,45.7,P ＜ 0.05). The expression changes of IGF-1 and its receptor were similar. ④The expression of ERK1/2 was low in the control group, and increased gradually after gentamycin toxicity. In the 7-day group, the immunoreactivity reached its maximum. Then the levels of ERK1/2 decreased gradually, but were still higher in the 21-day group than that in the control group. There were significant differences in the expression of ERK1/2 among different groups (F =103.7,106.4, P ＜ 0.01), but no significant differences existed in the expression between ERK1 and ERK2 among different groups (P ＞ 0.05).CONCLUSION: The expression of IGF-1/1R and ERK1/2 in vestibular epithelium increased after gentamycin treatment,and IGF-1 may play an important role as an endogenous mitogen through a paracrine or autocrine manner in the early stage of hair cell self-repair of guinea pigs. ERK1/2 may play an important role in signal transduction during vestibular hair cell self-repair after gentamycin toxicity in guinea pigs.

Objective To explore the efficacy of intervention combined with traditional Chinese medicine for the treatment of early femoral head necrosis. Methods 62 cases of early femoral head necrosis were treated with interventional and traditional Chinese medicine, all patients were assessed for clinical efficacy before treatment and 6 months after treatment. The clinical hip function, pain index evaluation and rating of the femoral head venography were recorded. Results 41 cases were cured, 18 cases improved,no improvement in 3 cases,the total effective rate was 95. 2%. Clinical hip function after treatment compared with before treatment increased by 32.5%,there was a statistically significant difference (P＜0.01); compared with before treatment, significantly reduced pain (P＜0. 01). After treatment, Ⅲ and Ⅳ were significantly increased number of cases, respectively, compared with the preoperative increase of 146.2% and 160.0%,femoral venography ratings before and after treatment had significant difference(P＜0.01). Conclusion Intervention combined with traditional Chinese medicine treatment could significantly improve the early femoral head necrosis.