Objective To analyze the clinical manifestation, diagnosis and treatment of acute mesenteric vascular obliteration (AMVO). Methods 112 cases of AMVO were analyzed, including 20 cases admitted to our hospital from 1992 to 2004 and 92 cases reported by other hospitals. Results Abdominal pain, abdominal distension, nausea and vomiting, decrease or disappearance of bowel sound, elevation of white blood cell count were more frequent manifestations.Cardiovascular disease, portal vein stasis or hypercoagulation state were common findings in patients' history. The average misdiagnosis rate of AMVO in these 112 patients was 61.5%, with a misdiagnosis rate of 45.0% in 20 cases of our hospital. The average mortality rate of all these patients was 41.9%, with a mortality rate of 30.0% for 20 cases of our hospital. Conclusion The early clinical manifestation of AMVO lacks specificity, the misdiagnosis ratio and mortality rate are very high. Angiography should be done early to confirm the diagnosis and improve the therapeutic effect in the patients suspicions of having this ailment.

Twenty-eight moderately halophilic bacteria isolated from salt lakes in Xinjiang Regions were analyzed by 16S rDNA PCR-RFLP in comparison with nine reference strains of related species. The 16S rRNA PCR products of the tested stains were digested by four restriction enzymes (AluI, HinfI, RsaI and HaeⅢ). The results showed that all tested strains were clustered into three groups at 74% similarity level. Group I included 2 reference strains Chromohalobacter marismortui, Nesterenkonia halobia and new isolate CI. Group Ⅱ included seven type strains belonging to Halomonas and eight new isolates. Group Ⅲ included ninteen new isolates.

Animals ; Female ; Galactosylceramides ; metabolism ; Graft vs Host Disease ; metabolism ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; T-Lymphocytes ; cytology ; Th2 Cells ; cytology

A bacterial cell surface display technique based on an ice nucleation protein has been employed for the development of live vaccine against viral infection.Due to its ubiquitous ability to invade host cells,Salmonella typhimurium might be a good candidate for displaying viral antigens.We demonstrated the surface display of domain III of Japanese encephalitis virus E protein and the enhanced green fluorescent protein on S.typhimurium BRD509 using the ice nucleation protein.The effects of the motif in the ice nucleation protein on the effective display of integral protein were also investigated.The results showed that display motifs in the protein can target integral foreign protein on the surface of S.typhimurium BRD509.Moreover,recombinant strains with surface displayed viral proteins retained their invasiveness,suggesting that the recombinant S.typhimurium can be used as live vaccine vector for eliciting complete immunogenicity.The data may yield better understanding of the mechanism by which ice nucleation protein displays foreign proteins in the Salmonella strain.

AIM:To evaluate the availability and our experience of intraoperative image-guidance in endoscopic nasocular operation.METHODS:Seven cases of endoscopic nasal surgery with intraoperative image-guidance were retropectively reviewed,including 3 cases of optic nerve injury;3 cases of foreign object of optic behind the eyeball;1 case of retrobulbar tumor(angeioma).RESULTS:The preoperative preparatory time would take 15 minutes,including coordination,head holder localization,conventional instrument registration.In our cases,the localization accuracy between 3-D image landmarks of navigation system and actual anatomical landmarks was less than 1.3mm.The optic nerve and other anatomical points could be orientated accurately in intraoperative procedures.No complication occurred.CONCLUSION:Nasal endoscope combined with imageguidance systems provides accurate anatomical localization of anterior skull base with enlarged operation field.It is possible for surgeons to observe important anatomical structures during endoscopic surgery.It could increase the effectiveness and decrease surgical complications,especially in complicated cases.

Twenty nine moderately halophilic bacteria isolated from salt lakes in Xinjiang Region were compared with nine reference strains of relative species by performing a numerical analysis of 112 phenotypic characteristics. All the new isolates are Gram negative and can grow on the media containing 0～25% NaCl. The results showed that all tested strains were clustered into 2 phena at 76 % similarity level. Phenon I was composed by 25 new isolates strains,and phenon II included 9 reference strains and 4 new lsolated strains. Most of the new isolated strains were clusted into 3 subphena at 86 % similarity level. There were 10 new isolated strains in subphenon 1, 8 new isolated strains in subphenon 2, and 1 new isolated strain and 5 reference strains were included in subphenon 3. The results indicated that there were great differences between the new isolates and the reference strains.

Cultured human testicular tissues were grouped as follows:control group,group tracted with single dosc of human chorionic gonadotropin(hCG), group treated with double doses of hCG given at three-day-interval and group treated with multiple doses of hCG. The dose of hCG was 20kIU/L,and it was added into the medium and incubated for 24 hours. Testosterone was measured by RIA. The result indicated that all three hCG-treated groups had a testosterone secretion peak at 48-72 hours after the first dose of hCG. After the second hCG treatment given in three days interval the testosterone increased again. but its maximal rise reduced. Multiple doses of hCG given successively inhibited the response of Leydig cells to hCG stimulation.

Objective To investigate the lateralizing value of head deviation(HD) during complex partial seizures (CPS) in patients with refractory mesial temporal lobe epilepsy (mTLE).Methods Presurgical videotypes of 43 patients who were seizure-free for at least one year after temporal lobectomy were retrospectively reviewed.Attention was paid to the relationship between time and type of HD and the side of epileptogenic zone.Results HD was seen in 88 CPS from 43 patients who had total 206 CPS with or without secondary generalization.Both versive and non-versive HD displayed high positive predictive value (83％ (33/40) and 88％ (22/25)) for localization of an ipsilateral and contralateral seizure onset,respectively.Conclusion Both non-versive HD and versive HID during CPS in patients with mTLE are reliable lateralizing signs that can complement other diagnostic modalities in presurgical evaluation.

An indexing system is constructed,based on the implementation of prevention and control technology for chronic non-communicable diseases in community health service institutions,using both literature review and Delphi method,and using the Analytic Hierarchy Process (AHP) to calculate the weight of the indexing system.The system comprises three level-1 indexes,8 level-2 indexes and 33 level-3 indexes.The research proposed a transition from emphasis of therapeutic means to prevention,and emphasis on prevention and control technologies to the high-risk population in the prevention and control technology of chronic non-communicable diseases,along with development of techniques and measures to encourage behavioral changes of the population with chronic diseases.

Objective To study the iodine nutritional status and thyroid function of adults in urban and rural areas of Wuwei City Gansu Province.Methods A cross-sectional survey was performed in 200 adults aged 18-45 who had lived more than six months in Wuwei City from April 2009 to January 2010.A random urine and fasting blood samples were collected.Urinary iodine content was measured with arsenic cerium catalytic spectrophotometry.The thyroid-stimulating hormone (TSH),free thyroid hormone (FT4) and three free triiodothyronine (FT3) were quantified by direct chemiluminescence immunoassay.Thyroglobulin antibodies (TGAb) and thyroid microsomal antibodies (TMAb) were detected by radioimmunoassay.Results A total of 99 and 98 copies of urine samples of urban and rural groups were tested,respectively.The median of urinary iodine of urban and rural groups was 189.0 and 258.2 μg/L,respectively,and rural group was higher than urban group (Z =-4.020,P ＜ 0.01).A total of 104 and 95 copies of blood samples of urban and rural groups were detected; mean value of FT4 in urban group [(16.8 ± 3.0)pmol/L] was higher than that of rural group [(15.4 ± 2.4)pmol/L,t =3.539,P ＜ 0.01].The positive rates of TGAb of urban and rural groups were 11.5％ (12/104) and 15.8％ (15/95),respectively; the positive rates of TMAb of urban and rural groups were 13.5％ (14/104) and 14.7％ (14/95),respectively; the positive rates of TGAb of male and female were 5.5％ (6/109) and 23.3％ (21/90),respectively; the positive rates of TMAb of male and female were 6.4％ (7/109) and 23.3％ (21/90),respectively.The positive rates of TGAb and TMAb were lower in male than in female (x2 =13.362,11.661,all P ＜ 0.01).The rates of thyroid function disorders of urban and rural groups were 16.3％ (17/104) and 8.4％ (8/95),of male and female 11.9％ (13/109) and 13.3％ (12/90),respectively.Subclinical hypothyroidism in all thyroid function disorders was the most common,which was 14.4％ (15/104) and 7.4％ (7/95) in urban and rural groups,11.0％ (12/109) and 11.1％ (10/90) in male and female,respectively.Conclusions Iodine nutrition level is appropriate for adults in urban areas,but in rural areas iodine nutrition is high or excessive; subclinical hypothyroidism in all thyroid function disorders is the most common; we should be concerned about the risk of iodine overdose,especially the risk of illness in women.