Cri-du-Chat Syndrome ; complications ; Humans ; Infant, Newborn ; Male ; XYY Karyotype

Objective To establish induced pluripotent stem cells (iPSCs) in patients with azoospermia by non-integrated approach. Methods Using the commercially available serum-free medium (TeSR?2) and embryonic stem cell culture medium (Stem Adhere? Defined Matrix) to define the culture system, the iPSCs were established by using non-integrated Sendai virus infection in peripheral blood mononuclear cells of azoospermia patients. The immunofluorescence, karyotype analysis, embryoid body differentiation and teratoma formation were used to identify pluripotency, karyotype and differentiation ability of iPSCs. Results The established iPSCs showed the characteristics of human embryonic stem cells. Immunofluorescence analysis showed that octamer-binding transcription factor 4 (OCT4), SRY-related-box protein-2 (SOX2), stage-specific embryonic antigen-4 (SSEA-4) and tumor rejection antigen-1-60 (TRA-1-60) were positive for the expression of stem cell pluripotency markers. Karyotype analysis showed that they had normal karyotype. In addition, embryoid body and teratoma tests showed that the iPSCs had the ability to differentiate into three germ layers in vitro and in vivo. Conclusion The induction of pluripotent stem cell line is successfully constructed by non-integrated approach in azoospermia patients.

0.05).But there was a significant statistical difference among those parameters between Group A and Group B at final follow up(P

Sankezhen (Berberidis Radix) is a traditional Chinese materia medica,cold in nature and bitter in taste,for treating syndromes of liver,stomach,and large intestinal meridians,in which berberine and berbamine are the major pharmacological components.Sankezhen has been readmitted in Chinese Pharmacopoeia 2010 following the 1977 version as the roots of Berberis spp.e.g.B.soulieana,B.wilsonae,B.poiretii,B.vernae,etc.Recent studies showed that Berberis spp.were potential phytomedicines with multiple spectrums therapeutic effects and various pharmaceutical parts.Here we reviewed Sankezhen in traditional use and phytochemistry,and its major active components berberine and berbamine with potential bioactivities recently discovered,such as antitumor,antidiabetic,antihyperlipidemic,anti-arrhythmic,and neuro-protective activities.It is necessary to mature the quality assessment of Sankezhen as a new admission of Chinese Pharmacopoeia 2010.Other parts of Berberis spp.should be investigated to better develop this herb in medicinal usage.

BACKGROUND:Repair of extrahepatic biliary tract injury is a difficult problem in the abdominal surgery. Tissue-engineered extrahepatic biliary tract is an ideal selection for this problem. Construction of tissue-engineered extrahepatic biliary tract with excelent performance is a key to related studies. OBJECTIVE:To investigate the biocompatibility of bile duct endothelial cels differentiated by porcine bone marrow mesenchymal stem cels with electrospun nanofibers. METHODS:Porcine bone marrow mesenchymal stem cels were induced toward biliary tract endothelial cels, which were then identified by morphology and RT-PCR. Polylactic-co-glycolic acid (PLGA) nanofiber membranes were prepared by electrospinning. The morphology was determined by scanning electron microscopy and the short-term (2-week)in vitro degradation rate was determined. Adhesion and proliferation of biliary tract endothelial cels on the nanofiber surface was analyzed by calculating the cel adhesion rate and MTT assay, respectively. Cel growth, morphology and distribution on the material surface were observed by fluorescence staining and scanning electron microscopy, respectively. RESULTS AND CONCLUSION: After 4 weeks of directed differentiation of bone marrow mesenchymal stem celsin vitro, cels showed typical morphology of dendritic bile duct endothelial cels and had the expression of CK19. Scanning electron micrographs showed that electrospun materials were continuous nanofibers with diameters between 200 and 500 nm. No significant degradation of the PLGA nanofibers was observed within 2 weeks. Based on the measured cel adhesion rate, MTT assay, fluorescence staining, and scanning electron microscopy, the differentiated cels possessed a good proliferative capacity on PLGA nanofibers. Bone marrow mesenchymal stem cels differentiated into bile duct endothelial cels in vitro. Materials prepared by the electrospinning method had a nanofiber structure, which did not significantly degrade within 2 weeks. Differentiated cels exhibit good biocompatibility with the nanofibers.

Objective To assess the curative effect of percutem transilluminated with negative pressured on the potaried technique on the treatment of venous ulcer in lower extremity.Methods The clinical date of 300 cases involving 300 legs with venous ulcer in lower extremity,who underwent the percutum transilluminated negative pressured potaried technique using TRIVEXTM Ⅱ potaried system or the percutum transfixion surgical treatment from October 2005 to June 2009,were analyzed.Three hundred cases were randomly divided into potaried group and transfixion group.In potaried group,there were 190 cases involving 190 legs treated with TRIVEXTM Ⅱ potaried system.In transfixion group,110 cases involving 110 legs treated with percutum transfixion.The clinical indexes of skin infection rate and skin necrosis rate,shrinkage rate of wound area and skin depigmentation rate,ulcer healing rate and ulcer recurrence rate were calculated to assess the clinical curative effect on day 5,day 20,day 120 and day 360 after operation respectively.Results The rates of skin infection and skin necrosis were significantly decreased in potaried group compared with transfixion group on day 5 after operation (P0.05).Ulcer recurrence rate was remarkably lower in potaried group than that in transfixion group on day 360 (P

ObjectiveTo explore the change of spino-pelvic parameters following pedicle subtraction osteotomy (PSO) for thoracolumbar kyphosis secondary to ankylosing spondylitis(AS).MethodsTwenty-one AS patients with thoracolumbar kyphosis,who underwent PSO at L1 level from July 2006 to October 2010 in our hospital,were retrospectively reviewed.There were 18 males and 3 females with a mean age of 35.6 years (range,21-53 years).The pre- and post-operative thoracic kyphosis(TK),lumbar lordosis (LL),globe kyphosis (GK),angle of the fusion levels (AFL),sagittal imbalance (SVA),pelvic incidence (PI),sacral slope (SS) and pelvic tilting (PT) were measured.ResultsSignificant differences were observed in terms of the improvement of LL,PT,SS,SVA,GK and AFL (P＜ 0.01).The alteration of LL showed significant correlation with the change of PT (r=0.59,P=0.005),SS (r=0.64,P=0.002),SVA (r=0.49,P=0.025),and AFL (r=0.60,P=0.004).The change of PT exhibited cardinal correlation with the change of SS(r=0.94,P=0.000).The improvement of AFL significantly correlated with the improvement of SS(r=0.61,P=0.003),PT (r=0.59,P=0.005).ConclusionThe change of the sagittal spino-pelvic profile following PSO in AS-related thoracolumbar kyphosis is closely related with the improvement of LL.

Objective To investigate the preoperative evaluation of pulmonary function and protocol for scoliotic patients with respiratory failure. Methods From September 2000 to June 2008, sixteen patients suffered from respiratory failure were recruited into this study. There were two males and three females who were diagnosed as idiopathic scoliosis with a mean age of 13.5 years (range, 10-16 years). The other eleven patients were diagnosed as congenital scoliosis, including five males and six females with a mean age of 12.4 years (range, 10-14 years). The mean preoperative Cobb angle was 126.6°±15.5° with a mean height of 137.6 cm (range, 120-160 cm) and a mean weight of 32.5 kg (range, 18-40 kg). Decision was made depending on the severity of pulmonary impairment and spinal deformity. Preoperative treatment included respiratory training, noninvasive positive pressure ventilation therapy and halo-gravity traction. Results All patients received corrective surgery; ten patients were extubated tracheal tubes successfully 1 hour after surgery and six patients had to stay in intensive care unit (ICU) for 24 hours. Pulmonaryedema occurred in two cases and pneumonia in one case. The Cobb angle had improved to 72.0°±13.2° after surgery with a correction rate of 43%. All patients recovered well after surgery with no major cardiac or pulmonary complications.Conclusion Patients with preexisting respiratory failure can tolerate deformity correction operation with few complications after receiving a set of preoperative respiratory training modalities.

Objective To prospectively explore the techniques and correction results of the method of vertebral coplanar alignment (VCA) in posterior correction for thoracic scoliosis. Methods Between June 2008 to March 2009, 27 patients with idiopathic thoracic scoliosis were selected to undergo posterior pedicle screw fixation with assistance of Coplanar system. There were 26 females and 1 male with the average age of 15.9 years(ranged 11-23 years). There were type 1 in 25 cases and type 2 in two cases. The levels of fusion were established according to the Lenke criteria. The average preoperative coronal Cobb angle was 49°(ranged 40°-70° ). During the procedure, the pedicle screws were inserted in each involved levels on the convex side, an extended Coplanar tube was screwed in line with screw axis to each screws. Then two rigid bars were inserted through the uppermost part of the slotted tube sequentially. As the bar was gently driven down toward the bottom end, the pedicle screws axis started to converge in the straight line, correcting translation and rotation. Spacers were inserted into the slots of the tubes to achieve the ideal physiologic thoracic kyphosis. Once the rod was fixated in the concave side of the main curve, the Coplanar system could be removed. Results The mean postoperative Cobb angle was 14° (ranged 6°-25°), representing the correction rate of 70.7%. The average duration of surgery was 245 min (ranged 210-300 min) and a mean estimated blood loss was 1500 ml (ranged 600-2100 ml). The duration of follow-up averaged 15 (12-18) months. The loss of correction at last follow-up was 3° with the loss of correction rate of 6.1%. In the sagittal plane, the thoracic kyphosis was restored from 18° to 25°. No coronal or sagittal plane decompensation occurred. No thoraeoplasties were necessary to correct the residual rib hump. There was no death, infection and neurological complications. Conclusion The Coplanar is a new technique for the correction of scoliosis, its advantage lies in excellent and modulatable three-dimensional correction with a single and standardized maneuver.