BACKGROUND:Changing the acetabular orientation is the best method for the treatment of acetabular dysplasia, and Bernese periacetabular osteotomy is one of the most commonly used and successful treatment methods. OBJECTIVE:To review and analyze the operation indication, surgical technique and influencing factors of Bernese periacetabular osteotomy for better clinical application. METHODS:The PubMed database, Elsevier database and Springer database were retrieved for related articles published before December 2012 with the key words of“Bernese osteotomy, Ganz osteotomy, periacetabular ostetomy”. The articles that related to the clinical application of Bernese periacetabular osteotomy in patients with acetabular dysplasia were enrol ed in this study. Repetitive studies and Meta analysis were excluded. And the analysis emphasis was put on the operation indication, surgery technique and influencing factors of Bernese periacetabular osteotomy. RESULTS AND CONCLUSION:A total of 483 articles were screened out after primary computer-based online research. And according to the exclusion criteria, 43 articles were selected for review. Bernese periacetubular osteotomy was performed through polygonous osteotomy around the acetabula by modified Smith-Peterson approach. The surgical technology was improved gradual y, but the major osteotomy procedures never changed, only the soft tissue release method was modified. The direct factors that influence the surgical effect of Bernese periacetabular osteotomy are the degree of radiographic hip degeneration and dysplasia. In the future, with the in-depth understanding of hip deformity, the operation indication and technique of Bernese periacetabular osteotomy wil also developed.

XIAP(X-linked inhibitor of apoptosis protein)is one of the most important members of IAPs family.It inhibits cell apoptosis mainly by inhibiting the caspases activation and interfering with other apoptotic pathway,which plays a critical role in tumor development.Recently,genetic therapy targeting on XIAP for malignant tumors has deeply developed.Research on XIAP as a malignant and prognositic indicator is ongoing.

Objective To investigate and compare cytotoxic effects of cyclosporine A (CsA) treatment in kidney tubule epithelium cells (NRK-52E cells), and whether apoptosis is involved in the CsA-induced toxicity. Methods NRK-52E cells were cultured at 37?℃ in 95?% O 2/5?% CO 2, and were treated with different concentrations of CsA for 48?h.. The damage induced by CsA was characterized by an early cell detachment from culture (by direct counting of adherent cells), lactate dehydrogenase (LDH) release, and the changes in morphology were also observed by a phase-contrast microscope. Assay of apoptosis was done by TUNEL staining. Results CsA treatment induced significant damage in NRK-52E cells, which was demonstrated by obvious signs of cell injury with changes in cell shape, aggregates, and cell loss. A time- and dose-dependent increase in LDH release was also observed for CsA treatment . More than 70?% of the NRK-52E cells treated with 20??g/ml CsA for 48?h were dead. The apoptotic DNA fragments were observed in a population of NRK-52E cells treated with CsA by TUNEL staining, which represented the capacity of CsA to induce apoptosis in NRK-52E cells. Conclusions CsA treatment induced a time- and dose-dependent damage in NRK-52E cells, in which the apoptotic DNA fragments were also observed by TUNEL staining. Thus, the results obtained from the present study suggested that apoptosis, as a possible mechanism, might be involved in the CsA-induced tubulopathy.

Objective To investigate the indications and mid-term outcomes of periacetabular osteotomy through ilioinguinal approach for developmental dysplasia of the hip (DDH) in middle-aged (40-50years old) adult patients.Methods Data of 10 adult patients who had undergone periacetabular osteotomies through ilioinguinal approach for DDH from August 2005 to February 2010 were retrospectively analyzed.There were 7 females and 3 males,aged from 40 to 47 years (average,42 years).Bilateral hips were involved in 3 patients,and unilateral hip was involved in 7 patients.Before this hospitalization,1 patient had received Chari osteotomy,and 1 had received hip-shelf procedure.According to the T(o)nnis classification,3 hips were classified as Grade 0,5 as Grade Ⅰ and 2 as Grade Ⅱ.The Shenton line was discontinuous in 6 hips.The average lateral center-edge angle was 3.50°±4.88°; the average anterior center-edge angle was 1.80°±5.07°; the average acetabular index angle was 18.20°±3.01°; the average femoral head extrusion index was 31.30％±4.37％; the average Harris hip score was 67.40±7.75.Changes of the indexes mentioned above were observed during the whole period of follow-up.Results All patients were followed up for 10 to 76 months (average,37 months).The T(o)nnis grade improved in 2 cases,from preoperative Grade Ⅰ and Grade Ⅱ to Grade 0 and Grade Ⅰ at final follow-up,respectively.At final follow-up,the Shenton line was discontinuous in 2 hips; the average lateral center-edge angle improved to 30.40°±3.31°,the average anterior center-edge angle improved to 29.50°±3.03°,the average acetabular index angle decreased to 4.50°±2.55°,the average femoral head extrusion index decreased to 9.90％±4.33％; the average Harris hip score increased to 84.10±4.07.The major complications included 3 cases of lateral femoral cutaneous nerve palsy which recovered in 4 to 6 months,and 1 case of iliac fossa hematoma which disappeared in 2 weeks.Conclusion With more strict surgery indication and more meticulous manipulation,periacetabular osteotomy through ilioinguinal approach can achieve satisfactory results in the treatment of DDH in middle-aged adults,which can increase hip joint congruence,relieve hip symptom and delay progression of osteoarthritis.

Objective To explore influencing factors of the individual entrepreneurship from as-pects of entrepreneurial intention, entrepreneurial cognition and entrepreneurship education. Methods Questionnaire of entrepreneurial cognition was conducted for 1860 students in Southern Medical Universi-ty. SPSS was used to analyze the data. Results ①Entrepreneurship intention among university students were strong.②There was a lack of awareness of college students entrepreneurship policy among college students. ③Students never receiving entrepreneurship education accounted for 65%, but 89%students held that entrepreneurial education courses was necessary. Conclusions Due to arduous professional tasks, medical students have compelling and demanding need for personalized entrepreneurship educa-tion. Initiative participation of library in integrating of entrepreneurship education information by using advantageous resources plays a important role in entrepreneurship education.

Objective To optimize the method of isolating ,culturing and screening fetal mouse liver stem cells in vitro ,and to identify the potential of bi‐directional differentiation .Methods The fetal liver stem cells of mouse were isolated by the density gra‐dient centrifugation and cell difference adherence method ,the proliferation of stem cells was determined by cell plate cloning tech‐nique and MTT method;stem cells were induced for differentiation by adding DMSO and HGF .Results The isolated stem cells showed adherence within 24 h ,which were orbicular‐ovate ,closely packed ,activated within 1~2 weeks ;the positive rates of CD133 , CD49f and EPCAM were (97 .95 ± 1 .21)% ,(92 .71 ± 3 .49)% and (50 .73 ± 3 .45)% respectively ;AFP and CK19 proteins were expressed;red glycogen granules were seen by PAS after induced differentiation;ALB and HNF‐4αwere expressed .Conclusion Fe‐tal hepatic stem cells are successfully isolated by the density gradient centrifugation combined with difference adherence method ,and the isolated cells have strong stemness and proliferation ability ,as well as the ability of bi‐directional differentiation towards hepato‐cytes and bile duct epithelial cells .

Objective To evaluate the value of medical imaging technology in qualitative and quantitative diagnosis of liver steatosis.Methods To describe the current status and advancements of medical imaging technology such as sonography,CT and MRI in qualitative and quantitative diagnosis of liver steatosis,and to contrast their advantages and shortages.Results Sonography could be used as the primary screening and evaluate measures in qualitative and quantitative diagnosis of liver steatosis,and CT was more reliable in quantitative diagnosis,MRI had significant improving with its high sensitivity and specificity.Conclusion Medical imaging technology has significant clinical value in qualitative and quantitative diagnosis of liver steatosis,especially with the help of functional MR imaging techniques such as spectroscopy and chemical shift Gradient-Echo technic.

[Objective]To study the means and curative effect of the total hip replacement for ankylosed hip joint with severely flexinal abnormality.[Method]Retrospective analysis of the operative effect and related problems of the total hip replacement for ankylosed hip joint with severely flexinal abnormality.[Result]Through follow up for 6 to 44 months(22 months averaged),the average range of motion of hip joint and of flexion was 220.5? and 103?,respectively.The postoperative Harrris Score was 84.4 versus the preoperative Harrris Score of 14.2.The pain of the hip was disappeared almost completely and pain of lower waist and knee was relieved obviously.Patient got their gait right and could care themselves approximately.[Conclusion]The total hip replacement can eliminate the pain of the joint effectively and meliorate the function of the joint rapidly for ankylosed hip joint with severely flexinal abnormality,but surgeons must grasp the indication and technique of the operation and postoperative functional exercise.

Objective To investigate the characteristics of Wallerian degeneration (WD) of secondary pyramidal tract after supratentorial cerebrovascular diseases, and to study the relationship between secondary WD and clinical performance. Methods We retrospectively reviewed and investigated the results of brain CT films of 272 cases suffered from supratentorial cerebral vascular diseases during 2001 till 2004. The number of supratentorial disorders was counted respectively in WD group and non-WD group, the distribution feature of these disorders was analyzed, and the changes in the cerebral peduncles of the midbrain and Activities of Daily Living Scale (ADLs) were determined. The information obtained was analyzed statistically respectively. Results Seventy-four cases of secondary WD were found, the rate of WD outbreak was 27.2%. In WD group, the ipsilateral cerebral peduncle of supratentorial disorder was significantly narrower than contralateral cerebral peduncle (P

Objective To explore the therapeutic efficacy of a self-made occluder used for bronchoscopic lung volume reduction(BLVR).Methods Two patients with severe chronic obstructive pulmonary disease(COPD)in stable phase were selected for the present study.One or two nitinol occluders were placed,guided by brochoscopy,into the target bronchi of the two patients.Examination of pulmonary functions,chest computed tomography,complications,blood gas analysis,and evaluation of life quality with St George's respiratory questionnaire(SGRQ)were carried out before and 7 months after the bronchoscopic lung volume reduction.Results No dislodging or shifting of all the inserted occluders occurred.Only slight proliferation of granulation tissue was found in mucous membrane around the occluder,and atelectasis was observed at the target sites of lung.Before and 7 months after BLVR,ventilatory capacity(VC)of case 1 rose from 3.08L to 3.57L,and that of case 2 was elevated from 2.19L to 2.58L.Forced vital capacity(FVC)of case 1 was elevated from 2.87L to 3.57L,and that of case 2 from 2.60L to 2.58L.SGRQ showed a remarkable improvement of patients' dyspnea with a decrease of scores from 62 to 26 in case 1 and from 48 to 23 in case 2.No evident changes were found on arterial oxygen blood partial pressure(PaO2)in both patients,and no severe complications such as obstructive pneumonia or pneumothorax occurred yet in either case 1 or case 2.Conclusion The present study has demonstrated that the self-made occluder is convenient for insertion with satisfactory stability and therapeutic efficacy.Application of such occluder is safe with few complications,and may serve the purpose of reducing lung volume and improving lung function.