Objective To discuss the pe rc utaneous laser disc decompression (PLDD) therapy by adopting the Nd: YAG Laser C L-50 Device under X-ray monitor supervision. Methods A total of 378 cases were included in this study. There was 198 males and 180 fe males, the age ranged from 19 to 76 years, with the average of 43.9 years, and the course of diseases from 1 month to 16 years. 17 cases of lumbar interverteb ral disc prolapse were diagnosed between L2 and L3, 35 cases between L3 and L4, 140 cases between L4 and L5, and 116 cases between L5 and S1. 60 cases with two intervertebral disc prolapses at the same time, and 10 cases with three interve rtebral disc prolapses at the same time. A total of 458 intervertebral-dis c operations were conducted with PLDD. All the cases selected had been examined by CT or MRI, and their clinical symptoms and physical signs were in compliance with the diagnosis standards for prolapse of lumbar intervertebral disc. Results After PLDD operation, 268 cases were cured within 1 month with a cure rate of 70.90%; 259 cases were cured in 3 months with a cu re rate of 68.52%, 260 cases were cured in 6 months with a cure rate of 68 .25%. Stable results were found with curing satisfaction rate, effective rate and failure rate. Conclusion X-ray guided PLDD therapy is an ideal non-operative therapy for curing lumbar intervertebral disc prolap se with micro-trauma, little pain, quick recovery and good effect. PLDD has ac hieved encouraging effects both in its recent clinical outcome and long term eff ect as well.

Objective To study the healing response of a tissue engineered bone of bMSCs combined rFN/CDH-BCP in a rabbit model. Methods The biomimetic surface was achieved by immobilizing rFN/CDH onto biphasic calcium phosphate ceramic ( BCP) covalently. The effect of rFN/CDH-BCP on adhesion,proliferation and differentiation were evaluated comprehensively by using cell centrifugal adhesive as-say,MTT method,SEM,Alkaline phosphatase ( ALP) activity and alizarin red staining respectively. A rabbit lumbar fusion model was estab-lished by implanting bMSCs combined rFN/CDH-BCP into intertransverse process space of L4 ~L5 ,the fusion site bone formation was ob-served by imaging means,histological techniques was used to observe the new bone formation and distribution of seed cells. Results Cell centrifugal adhesive assay indicated the adherent bMSCs on rFN/CDH-BCP associated with the ligand density,the biomimetic surface posses-ses excellent biocompatibility. The ALP activity on rFN/CDH-BCP surface was the highest among all samples on the 10th day after induction (P<0. 05). On the 21st day,alizarin red staining showed that the oval-shaped and orange-red nodules,either the number or the area,distrib-uted wider on rFN/CDH-BCP surface. The results from X plain after 3 months revealed a fuzzy gap between material and bone bed,and higher cover rate of intertransverse process space with new bone deposition on rFN/CDH-BCP surface. Conclusion Histologically,rFN/CDH-BCP exhibited as interlacing bone trabecula bridging biomaterial suface and cortical bone of transverse process continously. The bone mass was much more than the ture BCP class. The comprehensive data reveals that when loaded with MSCs,rFN/CDH-BCP demonstrates superior char-acteristics of osteoconduction and osteoinduction,and substantially enhances healing capacity in vivo.

Objective:To investigate the expression of activin A in paraventricular nucleus (PVN)of the WKY rats and its influence in arterial blood pressure,and to clarify the mechanism of activin A in the regulation of arterial blood pressure by PVN.Methods:The WKY rats were selected.The expressions of activin A,ActRⅡA,ActRⅡB,and Smads mRNA in PVN of the WKY rats were measured by RT-PCR.The expression of ActRⅡA protein in PVN was detected by immunohistochemical staining.The microinjection of exogenous activin A into PVN was used to observe the changes of arterial blood pressure.The primary cultured PVN neurons from the WKY rats were divided into control group and activin A group.The mRNA expression levels of ActRⅡA,ActRⅡB,and Smads in the PVN neurons were analyzed by RT-PCR.Results:Activin A,ActRⅡA,ActRⅡB,Smad2 and Smad3 mRNA were expressed in PVN of the WKY rats.The ActRⅡ A protein expression in PVN was further confirmed by immunohistochemical staining.After microinjection of activin A or angiotensin Ⅱ (AgⅡ)into PVN,the mean arterial blood pressure was increased obviously compared with before treatment (P <0.05).Moreover,compared with control group,the expression levels of ActRⅡA and Smad3 mRNA in primary cultured PVN neurons of the rats in vitro were significantly increased (P <0.05).Conclusion:Activin A can regulate the arterial blood pressure in PVN in an autocrine or paracrine manner,which is related to ActRⅡA-Smad3 signal pathway.

Objective:To investigate the occurrence of antenatal anxiety and possible influencing factors,and analyze its relationship with spontaneous delivery.Methods: 590 healthy puerperal women who delivered in Taihe hospital during Dec 2007 and Dec 2008 were randomly selected and investigated for their psychological status,with T-A1 anxiety scale and SDS depression scale employed.Results: 569 effective questionnaires were gathered,with 114 cases divided into the anxiety group and 159 cases into the depression group.Influencing factors of antenatal anxiety include fear of delivery,worry about the safety of babies,understanding of delivery knowledge,puerperal age,and the family financial status.Conclusion: Factors including a relatively older age of primipara,poor financial status,insufficient support from family,worry about the safety of oneself and baby,and fear for delivery pain all have close connections with antenatal mental disorders.Meanwhile,antenatal mental disorders have a direct influence on delivery quality and the choice of delivery modes,and increase the failure rate of spontaneous delivery.

Objective To evaluate Janus kinase (JAKs) and Suppressors of cytokine signaling(SOCSs) expression in myocardium after endurance training. Methods 30 male Sprague-Dawley rats undertook 10 weeks grade treadmill training program and were sacrificed at 0 and 24 h respectively after the last exercise. JAK1,JAK2,JAK3 and SOCS1 ,SOCS2,SOCS6 expression in the myocardium were determined by im munohistochemistry method. Results The percentage of JAK1 positive cell significantly increased immediately after last running and recovered to the sedentary level 24 hrs after exercise;The percentage of JAK2 positive cell significantly increased immediately after last running and continuously at a higher level 24 hrs after exercise (P<0.01;P<0.05); JAK.3 showed no significant change either immediately or 24 hrs after exercise (P>0.05). The percentage of SOCS1 and SOCS2 positive cell also significantly increased both immediately and 24 hrs after exercise (P<0.01 ;P<0.05). However, the percentage of SOCS6 positive cell showed no significant change either immediately or 24 hrs after exercise(P>0.05). Conclusion Endurance training could induce different responses of JAK1,JAK2 and JAK3. The increased expressions of JAK1 and JAK2 might indicate the changes of JAK/STAT signal pathway in regulating myocardial function. The increased expressions of SOCS1 and SOCS2 after endurance training might indicate the increased exertion in regulating JAK/STAT signal pathway in cardiac muscle.

Objective: To investigate the effect of different negative pressure of wound negative pressure dressing (NPD) on the survival of full-thickness skin grafts of patients. Methods: One hundred and eleven patients who need skin grafting, conforming to the inclusion criteria were hospitalized in our unit from August 2012 to March 2017, and their clinical data were retrospectively analyzed. Forty-seven patients hospitalized from August 2012 to October 2015 were assigned into traditional treatment group. Sixty-four patients hospitalized from November 2015 to March 2017 were divided into -9.975 kPa negative pressure treatment group (n=34) and -13.300 kPa negative pressure treatment group (n=30). Patients in traditional treatment group received conventional dressing after full-thickness skin grafting. Patients in -9.975 kPa and -13.300 kPa negative pressure treatment groups received -9.975 kPa and -13.300 kPa NPD based on traditional treatment after vacuum sealing, respectively. Dot necrosis area of skin grafts and erosion and escharosis of graft edges of patients in the three groups on post operation day 10 were observed. The percentage of dot necrosis area of skin grafts and occurrence rate of erosion and escharosis of skin graft edges were calculated, respectively. Data were processed with chi-square test, Fisher′s exact test, and Kruskal-Wallis H test. Results: Percentages of dot necrosis area of skin grafts of patients in traditional treatment group and -9.975 kPa and -13.300 kPa negative pressure treatment groups were 17.81%, 3.20%, and 3.00%, respectively. Percentage of dot necrosis area of skin grafts of patients in traditional treatment group was significantly higher than that in -9.975 kPa and -13.300 kPa negative pressure treatment groups (Z=-5.770, -4.690, P<0.001). Percentages of dot necrosis area of skin grafts of patients in -9.975 kPa and-13.300 kPa groups were close (Z=-0.619, P>0.05). The occurrence rates of erosion and escharosis of skin graft edges of patients in traditional treatment group and -9.975 kPa and -13.300 kPa negative pressure treatment groups were 78.7% (37/47), 32.4 (11/34), and 36.7% (11/30), respectively. Erosion and escharosis of skin graft edges of patients in -9.975 kPa and -13.300 kPa negative pressure treatment groups were better than those in traditional treatment group (P<0.001). Erosion and escharosis of skin graft edges of patients in -9.975 kPa and -13.300 kPa negative pressure treatment groups were close (P>0.05). Conclusions The use of -9.975 kPa and -13.300 kPa NPD in skin grafts after full-thickness skin grafting significantly diminishes the occurrence rates of dot necrosis area of skin grafts and erosion and escharosis of graft edges.

Female ; Humans ; Leukemia, Lymphocytic, Chronic, B-Cell ; pathology ; Middle Aged

OBJECTIVETo investigate the clinical efficacy of free latissimus dorsi musculocutaneous flaps in repairing large and deep skin and soft tissue defects around the knee joints.

METHODSTwenty-five patients with large and deep skin and soft tissue defects around the knee joints were hospitalized from March 2005 to March 2014. The area of defects around the knee joints ranged from 10 cm × 8 cm to 43 cm × 23 cm. The free latissimus dorsi musculocutaneous flaps were used to repair the defects, with the area ranging from 12 cm × 10 cm to 45 cm × 25 cm. The thoracodorsal artery and its concomitant vein of the musculocutaneous flap were anastomosed to the descending branch of the lateral circumflex femoral artery and its concomitant vein respectively to reconstruct blood supply. Split-thickness skin grafts around the flap donor sites were harvested to cover the muscle surface of the musculocutaneous flaps. The flap donor sites were closed directly with suture, and the skin donor sites were healed by dressing change.

RESULTSAll the 25 flaps survived without vascular crisis. The flaps were in satisfactory appearance. The flap donor sites were healed with linear scar. All the patients were followed up for 3 to 6 months. At last, they were able to stand up and walk.

CONCLUSIONSThe free latissimus dorsi musculocutaneous flap transplantation is an effective treatment for the repair of large and deep soft tissue defects around the knee joints, and the descending branch of lateral circumflex femoral artery and its concomitant vein are the appropriate recipient vessels.

Cicatrix ; Humans ; Knee Joint ; Myocutaneous Flap ; Skin Transplantation ; Soft Tissue Injuries ; surgery ; Superficial Back Muscles ; Treatment Outcome ; Veins ; Wound Healing