Objective To evaluate the diagnostic value, patients' tolerance and complications of double-balloon enteroscopy (DBE) in the diagnosis of small intestinal diseases. Methods During May 2003 to July 2005, a total of 68 patients (36 men, 32 women; mean age of 52. 6 years, range 15-78 years) with suspected small intestinal diseases were performed double-balloon enteroscopy (36 via mouth, 25 via anus and 7 via both mouth and anus according to suspected lesion location). Among them, obscure recurrent gastrointestinal bleeding was found in 39 cases, incomplete small intestinal obstruction in 7 cases, chronic abdominal pain in 14 cases, and chronic diarrhea in 8 cases. Results Approximately one half to three-fourth of the entire small intestine was observed by each approach in all cases except for 3 cases of severe intestinal stricture. The observation of the whole small intestine was finished by the combination of both oral and anal approaches in 7 cases. The appropriate use of X-ray made the enteroscopy easier and more helpful to determine the extent and location of the lesions. The lesions were found in 41 of the 68 patients, with a total positive rate of 60. 3%. The diagnostics yields was 26/39(62. 6%) in obscure recurrent gastrointestinal bleeding, 5 in incomplete intestinal obstruction, 6/14(43%) in chronic abdominal pain and 4 in chronic diarrhea, respectively. Fifty-seven cases (83. 8%) tolerated well without anesthesia while 11 cases received propofol anesthesia. No procedure-related severe adverse events or severe complications such as hemorrhage or perforation occurred in all cases. Conclusion Double-balloon enteroscopy is a well-tolerated and safe diagnostic approach with a high diagnostic yield in small intestinal diseases.

Objective: To investigate the postoperative change of concentration of CD_(41) in peripheral platelet following intra-operative polygeline administration. Method: Sixty-eight patients were randomly divided into studied and control groups. The patients in studied group were infused with 1 000ml polygeline whereas 1 000ml ringer's solution in control group. The concentration of CD_(41) in peripheral platelet was measured with immunocytometry before surgery, one hour, one day, two and five days after surgery. Result: There was no statistical difference in CD_(41) level between the two groups before surgery, CD_(41)values one hour and one day after surgery were obviously decreased in studied group compared with these in control group (P

Objective To explore the common factors' influence on serum gastrin level,and reveal the value of serum gastrin in the diagnosis of gastric precancerous lesions and gastric cancers.Methods Serum gastrin level of 3 906 serum samples was detected by ELISA.Results Serum gastrin level of patients over 60 years old was distinctively higher than that of other age groups.Serum gastrin level in antral diseases was higher than that in diseases of the body.HP positive group was higher than the negative one.The level progressingly increased from normal group to superficial gastritis and to gastric erosion or ulcer;and it decreased from gastric erosion or ulcer to atrophic gastritis,while it increased from atrophic gastritis to dysplasia,and it decreased from dysplasia to gastric cancer.Serum gastrin level was distinctively lower in gastric cancer than in other groups.Conclusion For people over 60 years old,their serum gastrin level has the tendence to increase.The location of gastric disease is an important factor affecting serum gastrin level.HP can increase the serum gastrin level.During gastric precancerous stage,the serum gastrin level may gradually increase with the diseases' progression,and decrease when gastric cancer is formed.Serum gastrin is a good marker to differentiate benign and malignant gastric diseases.

Objective To investigate the oxidative stress,microinflammation and their relationship in patients with MHD(maintenance hemodialysis)and to evaluate the effect and safety of vitamin E supplementation in patients with MHD.Methods Fifty-eight patients with MHD and 20 healthy volunteers were involved in this study.The patients were administered 400 mg/d of vitamin E for 6 weeks.The levels of oxidative vitamin E(Vit E),malondialdehyde(MDA),advanced oxidation protein product(AOPP),superoxide dismutase(SOD),activity of glutathione peroxidase(GSH-PX),microinflammation cytokines C-reactive protein(CRP),interleukin-6(IL-6),interleukin-10(IL-10) and tumor necrosis factor(TNF-?)in plasma were measured at the beginning and the end of administering Vit E.Results 400 mg/d of Vit E supplementation decreased the levels of plasma AOPP,MDA,CRP,TNF-?(P

Objective To know the effects of training for community residents about cardiopulmonary resuscitation.Methods 60 community residents were trained by CPR with varied training methods,evaluated the effects by the ABC for life questionnaire.Results The knowledge of cardiopulmonary resuscitation among the trained community residents were better than before expect 4 aspects.Conclusions The knowledge of cardiopulmonary resuscitation in community residents was not enough,systemic training can effective promote their skills of CPR.

Objective To explore the psychological status of patients after hand tenolysis and the pertinent nursing countermeasures. Methods 47 patients after hand tenolyais were selected and investigated their psychological status and relevant influencing factors with serf-designed questionnaire and symptom checklist-90(SCL-90). Besides, corresponding psychological nursing were applied. The SCL-90 results of Chinese Norm were adopted to undergo comparison with them and t test was chosen. Results On the first day after operation, the score of the investigation objectives was significantly different compared with that of the Chinese norm. After pertinent mental nursing, their symptoms alleviated, and no significant difference was seen between them. Conclusions There are obvious psychological obstacles in patients after hand tenolysis. The pertinent mental nursing has important effect on rehabilitation training and functional rehabilitation after hand tenolysis.

BACKGROUND: Bone marrow mesenchymal stem cells (MSCs) have multi-differentiation potential. In the acute wound, MSCs have been demonstrated to have the potential for differentiating into skin cells. However, there are few reports regarding its differentiation in diabetic wound.OBJECTIVE: To observe the feasibility of differentiation of MSCs into the cells of skin appendages under the microenvironment of diabetic wound.METHODS: MSCs were isolated from the bone marrow of rats, purified and cultured. Third or fourth passage MSCs were selected and labeled with 5-bromodeoxyuridine (5-BrdU). The rats were injected intraperitoneally with single administration of streptozocin to establish diabetes model. After 2 weeks, a round skin wound was made on the dorsal back of rats. BrdU-labeled MSCs at a density of 1×10~9/L were injected into the wound of the rats. The specimens were harvested from the wound tissues to prepare sections at 2 and 3 weeks after transplantation, followed by immunohistochemical staining with BrdU or keratin. RESULTS AND CONCLUSION: BrdU positive cells aggregated in the epidermis, dermis and hypodermia. Some positive cells appeared in the sebaceous glands and sebaceous duct cells and expressed keratin simultaneously in serial sections. During diabetic wound healing, MSCs have the potential to differentiate into the cells of the skin appendages.

Objective To explore the characteristic and pattern of children injury of Zhejiang Province,and provides scientific evidence for the prevention and control strategy of children injury. MethodChildren diagnosed as injury at emergency department in sentry hospitals (Tnere are 5 monitoring sites for injury surveillance in Zhejiang in 2005: Jinhua, Shengsi, Tongxiang, Yinzhou dislrict of Ningbo, Hailing; each monitoring site has 3 sentry hospitals: one county level hospital, one town center hospital and one town level hospital) from January to December,2005 were investigated by trained doctors or nurses in emerncy department. The investigation included basic information, when injury happened, where injury happened and type of injury. Children were investigated when they were conscious, and their parents or accompanies could answer if they were not able to. The contents of investigation were kept private. The distribution of variables which included sex, age, when injury happened, where injury happened, why injury happened and severity level were described mainly with proportion and means, and chisquare test was used to analyze the proportion difference. RemitsA total of 1 794 injury cases were recorded in 2005 among which 67.56% were male and 32.44% were female. The majority were native people and the average age was 7.33±3.84 years old. The injury occurred mostly at home and was of high frequent occurrence from April to November. The most common causes of injury were tumble (47.94%).traffic accident (17.17%) and blunt injury(10.26%). The injury happened mostly during spare time(67.66%), and then school aetivities(11.25%)ant]sports activities(9.96%). Totally 90.33% of the injured children went home after been treated, 1.40% stayed for obsrvafion, 7.04% were in hospital, 0.56% were transferred to other hospitals, 0.22% died and 0.45% unknown. The slight superficial injury and moderate injury were the most common injuries. The most common three types of injury were haemaloma and stasis injury(31.29%), superficial abrased wound(23.69%) and bone fracture(8.67%). Among the injury, 39.47% were head injury, 25.80% were upper limb, 28.55% were lower limb, 4.81% were trunkand 1.38% wereothers. Conclusions The most common three types of injury in Zhejiang province were haemawma and stasis injury, superficial abrased wound and bone fracture. The main reasons of injury were falling injury,traffic accident injury and blunt injury. The injury happened mostly during spare time, and scbool activities and sports activities. Thus, safety education and safety protection should be strengthened to reduce children injuries.

Objective To explore the feasibility of inherent depressive Fawn-Hooded (FH/Wjd)rats as a comorbidity model of mental disorder and irritable bowel syndrome (IBS) by comparing visceral sensitivity of FH/Wjd rats and Sprague-Dawley (SD) rats. Methods Depression trait of FH/Wjd rats was validated through forced swimming test (FST) and sucrose preference test (SPT).Visceral sensitivity to colorectal distention (CRD) under various pressures was assessed by abdominal withdrawal reflex (AWR). The expression of 5-HT in rats' colon,c-fos expression in colon and brain areas of infralimbic cortex (IL),prelimbic cortex (PrL) and rostral anterior cingulated cortex (rACC)was tested with immunohistochemistry. Results FST indicated that the immobility time of FH/Wjd rats was significantly longer than that in SD rats (t=-8. 931,P＜0. 01). SPT showed that the ratio of sucrose water in total liquid consumed was significantly lower in FH/Wjd rats than that of SD rats(t=4. 155,P=0. 01). At each CRD pressure gradient (20,40,60 and 80 mm Hg,1 mm Hg=0. 133kPa),AWR score was all significantly higher in FH/Wjd rats than that of SD rats (t=-2. 697,-3.464,-6.822 and -3. 976,P=0. 022,0.006,0.000 and 0.003). The expression level of 5-HT in FH/Wjd rats' control group was significantly higher than that of SD rats' control group (t=-11.371,P=0. 000). Compared with their own control group,5-HT expression increased both in FH/Wjd rats dilated groups and SD rats dilated groups,and the expression level in FH/Wjd rats was higher than that of SD rats (t= -3. 364,P= 0. 007). There was no significant difference of c-fos expression in colon and prefrontal brain areas between FH/Wjd rats' control group and SD rats'control group (colon:t=-0. 129,P= 0. 900;IL:t=-1. 316,P= 0. 218;PrL:t=1. 241,P = 0. 243;rACC:t=2. 151,P = 0. 057). Compared with their own control group,the expression of c-fos in colon and prefrontal brain areas significantly increased both in FH/Wjd rats dilated groups and SD rats dilated groups,and the expression level in FH/Wjd rats was higher than that of SD rats (colon: t=- 5.864,P= 0.000;IL:t=-2. 530,P = 0. 030;PrL:t=-7. 039,P= 0. 000;rACC:t=-6. 489,P=0. 000). Conclusions Inherent depressive FH/Wjd rats present visceral hypersensitivity. Meanwhile,the expression of 5-HT in colon is high,and with hyperreactivity to visceral noxious stimuli in colon and brain IL,PrL,and rACC areas. FH/Wjd rats might be a comorbidity animal model of mental disorder and IBS.

To introduce tutorial system for undergraduate in the forensic biology teaching is an important measure of educational reform of forensic medicine.The article presented some schemes and experiences about the practice of tutorial system for undergraduate in the forensic biology department of Kunming Medical College.