China ; Humans ; Poisoning ; prevention & control ; Public Health ; Public Health Administration ; World Health Organization ; Wounds and Injuries ; prevention & control

Aiming at the difficult employment situation of marketing students of higher vocational medicine,we has made an objective analysis of the strengths and weaknesses as well as opportunities and threats based on the trend analysis tools and weigh the advantages and disadvantages to help graduates overcome the deficiencies of individual employment process and find out the existing disadvantages of school,which can provide reference for improving the employment situation of higher vocational medicine marketing.

ObjectiveTo investigate the effect of subtotal gastrectomy on glucose metabolism in patients with gastric disease combined with diabetes mellitus.MethodsThe clinical data of 126 cases with gastric disease combined with diabetes mellitus receiving subtotal gastrectomy were analyzed retrospectively,including subtotal gastrectomy Billroth Ⅱ type 69 patients (Billroth Ⅱ type group),subtotal gastrectomy Billroth Ⅰ type 57 patients(Billroth Ⅰ type group).The fasting blood glucose,postprandial blood glucose before surgery and 1,3,6 months after surgery and the improvement of glucose metabolism were compared.ResultsThere was no significant difference in the fasting blood glucose,postprandial blood glucose before surgery and 1,3,6 months after surgery in Billroth Ⅰ type group (P ＞0.05).The fasting blood glucose,postprandial blood glucose 3,6 months after surgery [ (10.7 ±2.9 ),(10.4 ± 2.3 ) mmol/L and (12.4 ± 2.6),(12.0 ±3.2) mmol/L] were higher than those before surgery and 1 month after surgery [(14.1 ±3.2),(13.4 ±3.8) mmol/L and(19.0 ±3.9),(18.1 ±4.3) mmol/L] in Billroth Ⅱ type group with significant differences (P ＜ 0.05 or ＜ 0.01 ).The improving rate of glucose metabolism in Billroth Ⅰ type group [ 7.02％(4/57) ] was lower than that in Billroth Ⅱ type group [ 92.75％(64/69)] with significant difference(P ＜ 0.01 ).ConclusionsSubtotal gastrectomy has obvious effect on improving glucose metabolism in patients with gastric disease combined with diabetes mellitus.The use of subtotal gastrectomy Billroth Ⅱ type is prior to subtotal gastrectomy Billroth Ⅰ type.

Total 1049 new cases of blindness were detected by visual acuity survey in a population aged 68 or above in Changning District of Shanghai from 2003 to 2008. Among all eases 21.5% were age-related macular degeneration (AMD) blindness, with a trend of ascending from 17.7% in 2003 to 29. 9% in 2008. Most of the cases were classified as grade 3 (56. 9% ) or grade 4 (41.3%) of blindness. AMD has become one of the leading causes of blindness at present and should be the key eye disease for prevention of blindness.

Recent researches have shown that resectable pancreatic cancer can benefit from post-operative adjuvant chemoradiation, regardless its surgical margins, tumor size, lymph node involvement and the level of cell differentiation. Several phase Ⅱ clinical trials indicated a good tolerance to preoperative chemoradiation. Although there is no gold standard for treating locally advanced unresectable pancreatic cancer, gemcitabine-based chemotherapy or chemoradiation therapy can increase survival rate compared with best supportive care.

Only limited species of animals with vomiting reflex are available for the vomiting animal models. From 1980s some new vomiting models have been developed, such as in ferret, which is convinced its vomiting behavior is closest to human being; Suncus murinus(house musk shrew)is the smallest mammal used in vomiting model and the most sensitive animal to motion sickness; rat, although without vomiting reflex, but consuming non-nutritive substance such as kaolin(pica) can be considered to be an index of nausea and vomiting; mink, from the same genus as ferret, can be a substitute of ferret in vomiting model. It should be noted that the sensitivity profile to different emetic stimuli is species-dependent.

Objective:To explore the effect and mechanism of continuous dynamic pressure stress, which is produced by Swan-like shape memory connector(SMC), on osteopontin and osteonectin mRNA expression during experimental fracture healing.Methods: Bilateral humeral diaphyses of 30 adult rabbits were osteotomized in the middle and then 1 humerus was randomly chosen for internal fixation with SMC and the contralateral side was fixed with 4-hole dynamic compression plate(DCP). Six animals were sacrificed at 2, 7, 14, 28 and 56 days after operation and samples from the fracture gaps were obtained. Histological observation and RT-PCR were employed to study the expression of osteopontin and osteonectin mRNA.Results: In terms of histology, the endochondral bone formation and callus remodelling took place earlier in fractures fixed with SMC than with DCP. Osteopontin and osteonectin mRNA expression levels peaked at 14 and 28 days after the fracture, respectively. There was a delay in the increase and decrease of osteopontin and osteonectin mRNA in DCP fixed cases. Conclusion: The persistent dynamic longitudinal pressure stress produced by SMC may promote the healing process of long bones.

Medical genetics had been generally considered as a young branch of genetics thirty years ago. However, ithas been playing a more significant role in exploring the basic mechanismof almost all kinds of diseases, improvingthe diagnosis and treatment, as well as preventing them nowadays. It absorbs all the research methods and method-ology of genetics. At the same time, it derives lots of branch subjects as a result of the diversity and complexity ofdisease types. In addition, the duty of medical genetics includes taking research products into practice to serve pa-tients also makes it possess strong vital force. In the new century, one important trend of medical research is totransform the basic research production into clinical practice, which is called as“translational medicine”.

P-glycoprotein(P-gp)and CD44 have been characterized and are known to be determinants of multidrug resistance(MDR)and cancer metastases.Recent researches suggest that there is a correlation between P-glycoprotein(MDR)and CD44(invasion and metastases).A better understanding of any relationship between drug resistance and tumor metastasis may lead to more effective tumor treatment.

0.05);HIF-1?positive rate of control groups was higher than that in normal group and treatment group with significant difference among them(P0.05);VEGF positive rate in control groups was higher than that in normal group and treatment group with significant difference among them(P