Objective To investigate the effects of pentoxifylline (PTX) on the expression of uncoupling protein 2 (UCP-2) of hepatic mitochondria in rats with nonalcoholic fatty liver disease (NAFLD). Methods Sixty SD rats were randomly divided into 3 groups (each n = 20): normal control group, experiment group and treatment group. The rats in normal control group were given a normal feed. The rats in experiment and treatment groups were given fat-rich feed. Furthermore, the rats in treatment group were given PTX after 4 weeks in fat-rich diet feeding. The expression of UCP-2 in the liver was detected by immunohistochemistry and semi-quantitative RT-PCR. Results The hepatic expression of UCP2 mRNA was higher in experiment group (4.0±0.3) than in normal control group (1.2±0.1). The hepatic expression of UCP2 mRNA was higher in treatment group (3.0±0.2) than in normal control group, but the hepatic expression of UCP2 mRNA was lower in treatment group than in experiment group (F = 160. 67, P＜ 0. 01). Conclusions The UCP-2 mRNA is expressed in livers of NAFLD, pentoxifylline plays an important role in the reduction of expression of UCP-2 mRNA in lives of NAFLD.

Antiviral Agents ; therapeutic use ; Carcinoma, Hepatocellular ; drug therapy ; virology ; Hepatitis B virus ; Humans ; Liver Neoplasms ; drug therapy ; virology ; Nucleotides ; therapeutic use

Mective To study the correlation of ambulatory arterial stiffness index(AASI)and pule wave velocity(PWV),explore the evaluation of AASI on arterial stiffness and analyze the influential factors of AASI.Method One hundred patients were selected,brachial-ankle pulse wave velocity (baPWV)of all patients wag measured,simultaneously 24-hour ambulatory blood pressure Wag examined, calculated AASI.AASI and baPWV were analyzed with correlation and regression analysis.Results AASI Wagpositively and signifieandy correlatedwithPWV(r＝0.516,P＜0.01)and age(r＝0.417,P＜0.01). AASIWag negatively correlatedwithbody height(r＝-0.223,P＜0.05).Themultiplefactor stepwise regres-sion analysis showed that the regression of AASl with PWV were great significant.Conclusions AASI is positively and significantly correlated with PWV.It is a novel meagure ofartdrial stiffness.

Objective To investigate the prevalence of nutritional risk and nutrition support treatment in elderly hospitalized patients,and provide a basis for nutrient management in elderly hospitalized patients.Methods The Nutritional Risk Screening 2002 (NRS 2002) were administered to 163 patients (74 cases in digestive system and 89 cases in endocrine system) in elderly hospitalized patients from November 2013 to March 2014.Results The prevalence of nutritional risk was higher than in the digestive system (60.8％) in the endocrine system (32.6％) (P＜0.05).Conclusions There is a high prevalence of nutritional risk in elderly wards,and the wards with lower prevalence of nutritional risk are more likely to lack of nutrition support treatment.Therefore,it is necessary to pay attention to nutritional risk and nutritional support treatment in departments with low prevalence of nutritional risk.

[Objective]To investigate the treatment of nonunion after Pilon fracture with fibula approach fixation of tibia and ankle joint fixation and its clinical efficacy.[Method]Six cases of nonunion after Pilon fracture were collected from 1999 to 2004,which included 4 males and 2 females,with the average age of 34.7 years(21~53 years).All fractures were found invasion to the tibia-fibula joint and ankle malformation.Fibula and tibia were opened from posterolateral approach and reconstruction plate was placed laterally on the fibula,with screws crossing the fibula into the tibia directly.Autogenous bone graft was used in fracture position and area between tibia and fibula to gain tibia-fibula fusion.[Result]All cases were followed up from 8 months to 4 years with the average of 22 months.Bone fusion were gained in 5 cases with the average time of 3.5 months.Plate broken was found in 1 case for too early weight bearing.[Conclusion]Fibula approach fixation of tibia and ankle joint fixation has advantages of promoting fracture healing,preventing complications,and correction joint malformation.It is a convenient and reliable method for clinical surgeons.

[Objective]To summarize the experience about treatment of segmental and comminuted femoral fractures with intramedullary nail in multiple injuries.[Method]From March 2002 to July 2006,28 patients with segmental and comminuted femoral fractures were treated surgically,13 with AO type C1,9 with C2 and 6 with C3.All of the fractures were treated with close reduction static intramedullary nail fixation.[Result]The postoperative follow-up ranged from 11 to 34 months with an average of 21 months.All of the fractures were healed.Limit load was required for 5 patients who had delayed union without special treatment.After 18-30 months the patients healed up.There were no fat embolisms.No complications such as infection,intramedullary bending or break occurred.[Conclusion]Treatment of femoral fractures with intramedullary nail is a standard method.However,to achieve satisfactory results,comprehensive treatment,careful planning and procedure should be taken for segmental and comminuted femoral fractures in multiple injuries.

ve To increase the analytical efficacy and the sensitivity of determination of trace chloroform and tetrachloro-methane in water. Methods Headspace solid phase microextraction (HSSPME) analysis was applied to replace the traditional headspace method in determination of trace chloroform and tetrachloro-methane in water. Results The lowest detection limits were 0.05?g/L for chloroform and 0.005?g/L for tetrachloro-methane respec-tively. The precisions and accuracies all accorded with the requirements of determination. Conclusion The method of HSSPME was easy and rapid to operate, revealed reliable and accurate results and good practicability. It also showed higher sensitivity without any organic solvent, compared with that of traditional headspace method.

Objective To investigate the diagnostic value of a fast gradient-echo(GRE) three-dimensional contrast-enhanced volumetric interpolated breath-hold examination(3D-VIBE) MR sequence in evaluating focal liver lesions.Methods Conventional spin-echo T2W,2D GRE T1W plain scan and Gd-enhanced 3D-VIBE multi-phasic(early arterial,late arterial and portal venous phases) acquisitions were prospectively performed for 51 consecutive patients suspected of having focal liver lesions on CT or ultrasound imaging.Native T2W and 2D GRE T1W were acquired first,then 3D-VIBE fast scanning at early arterial,late arterial and portal venous phases respectively.The SNR and CNR of the liver lesions on plain scan and the enhancement patterns on contrast-enhanced 3D-VIBE images were carefully observed with correlation of the clinical and surgical pathological findings.Results There exited certain differences in SNR,CNR,and the enhancement patterns of different kinds of focal hepatic lesions in plain scan and Gd-enhanced multi-phasic 3D-VIBE acquisitions.Conclusion 3D-VIBE MR sequence is helpful in the detection and characterization of focal liver lesions.

Leptospirosis is recognized as an important emerging zoonotic disease caused by pathogenic Leptospira spp.and has a serious impact on people′s health and animal husbandry.Therefore, it has attracted more and more attention.With the development of biotechnology, major breakthroughs have been made in the fields of pathogenicity, molecular epidemic features and evolution mechanism of Leptospira.In this review, we summarize progress in evolution and molecular typing of Leptospira at home and abroad in order to provide a reference for further research on molecular epidemiological surveillance and new vaccine development.

Objective To investigate color Doppler flow imaging features of the ophthalmic artery,external carotid artery,which is known the secondary compensatory collateral circle,in patients with unilateral internal carotid artery occlusion.Methods A total of 42 patients with unilateral internal carotid artery occlusion were enrolled,and ipsilateral and contralateral ophthalmic artery,external carotid artery were examined by color Doppler flow imaging,prospectively,peak systolic velocity,pulsatility index and resistance index were analyzed and compared with findings of control group.Results In the 42 cases with internal carotid artery occlusion,the compensatory collateral circle was observed by the external carotid artery and ophthalmic branches,through their communicating arteries in 40 (95.2％) cases of chronic occlusion.Compared with the contralateral side,the ophthalmic arteries were characterized by retrograde blood flow,peak backward shifting,increase of diameter [(1.91 ± 0.53) mm vs (1.69 ± 0.34) mm,P =0.009] and peak systolic velocity [(43.41 ± 27.28) cm/s vs (29.91 ± 14.16) cm/s,P =0.003],reduced pulsatility index (1.18 ± 0.49 vs 1.69 ± 0.73,P =0.000) and resistance index (0.65 ± 0.26 vs 0.75 ±0.12,P =0.000),and prolonged acceleration time [(147.71 ± 56.16)ms vs (51.80 ± 7.81)ms,P =0.000].Ophthalmic arteries had antegrade blood flow with a decrease of peak systolic velocity and resistance in another two cases of acute thrombosis of ICA.Conclusions External-ophthalmic-internal carotid artery passway is another compensatory collateral circle for the chronic occlusion,but only by ipsilateral and contralateral internal carotid artery circle,for acute thrombosis.