Objective To investigate clinical effect of surgical treatment for spinal stenosis with lumbar degenerative de novo scoliosis with spinal stenosis.To discuss selection of operation methods and ranges of fusion.Methods 27 patients of degenerative scoliosis with spinal stenosis were treated by oper-ation.We performed posterior decompression on the segments and selected fusion,then performed correc-tion deformity.Measured Cobb 's angle,lumbar lordosis angle,the distance between C7 plumb line (C7PL),upper edge of S1 vertebral body(SVA),and the distance between C7PL and center sacral verti-cal line(CVA)after operation and final follow up were compared with preoperative data.JOA score system were used to evaluate clinical effects.The SF-36 questionary was used to evaluate the patients'life quality before and after operation as well.Results All patients were followed up with an average of 20 months. Preoperative,postoperative and final follow up,Cobb's angle was(22.1 ±10.5 )°,(10.2 ±7.3)°and (10.4 ±4.8)°,respectively;lumbar lordosis angle was(21.2 ±10.3)°,(25.7 ±12.2)°and(25.3 ± 12.3)°,respectively;SVA was(7.5 ±6.1)cm,(0.6 ±3.1)cm and(0.5 ±2.4)cm,respectively;CVA was(6.9 ±5.3)cm,(2.8 ±1.3)cm and(2.9 ±1.2)cm,respectively.There was significant difference in data before and after operation(P >0.05).JOA score was 10.8 ±1.4,21.3 ±2.4 and 23.5 ±2.3,re-spectively;All domains of SF-36 score were significantly improved postoperatively(P <0.05).Conclu-sion For surgical treatment with limited decompression,pedicle screw fixation and fusion will be effective methods for degenerative scoliosis with spinal stenosis,individualized surgery design should be made ac-cording to clinical symptoms,signs and imaging features.

Objective To evaluate the surgical effect for congenital nystagmus (CN) with an abnormal head position in all three axes of a predominant head turn. Design Retrospective case series. Participants 11 patients with horizontal nystagmus and abnormal head position treated in Xingtai Eye Hospital during 2003-2008. All had an abnormal head position in all three axes with a predomi-nant head turn. Methods Recession of the yoke muscles responsible for the slow phase of nystagmus (one medial rectus of 6mm, and one lateral rectus 8 mm), and simultaneously resection of the yoke muscles responsible for the fast phase of nystagmus (the other lateral rectus 9 mm, and medial rectus 7 mm) were performed. The follow-up was from 6 to 20 months. Main Outcome Measures The visual acuity of both eyes in primary position, the degree of head turn, chin elevation or depression, head tilt. Results At the last follow-up, the all 11 patients undergoing the operation for CN gained two or more lines of Snellen acuity with both eyes in primary position for be-ing corrected best. The postoperative mixed head position of 9 cases got disappear or ≤ 10°. Of 1 case developed overcorrection of the head turn. 1 case has the head turn of ≤15°, and 1 case remained the head turn of 25°. Conclusion Recessions and resections of the horizontal yoke rectus muscles in nystagmus with blockage position, when the head turn predominates over the vertical and torsional components, are effective in diminishing the abnormal head position on all three axes, and improve the visual acuity with both eyes in primary position. (Ophthalmol CHN, 2009, 18: 275-278)

Objective: To investigate the effect of tumor specific antigen of HCA520 on the proliferation of HEK293 cells and to obtain some functional implications for HCA520. Methods: MTT assay was performed with HEK293 stable cell lines transfected with pcDNA3-HCA520-flag construct. Cytokines probably involved in HCA520 enhanced proliferation were screened by RT-PCR, and effect of these cytokines on the HEK293 cell proliferation was further confirmed by MTT assay. Results: HCA520 significantly promoted the proliferation of HEK293 cells, which was at least partially attributed to the up-regulation of IL-6 in HEK293 cells by HCA520. Conclusion: HCA520 might accelerate tumorigenesis by promoting proliferation of cancerous cells.

OBJECTIVE:To investigate the clinical efficacy of levodopa combined with comprehensive therapy for ametropic amblyopia children and teenagers and its effeets on pattern visual evoked potential(P-VEP)and visual function. METHODS:70 pa-tients(80 eyes)with ametropic amblyopia were randomly divided into observation group(35 cases,40 eyes)and control group(35 cases,38 eyes). Control group received comprehensive therapy as wearing correctional glasses,occlusion therapy and visual stimu-lation training;observation group additionally received levodopa 0.125(d1-3)-0.25 g/time,bid,on the basis of control group for 6 months. Therapeutic efficacy,P-VEP,Visual sensitivity and visual function were compared between two groups,and the occur-rence of ADR was recorded. RESULTS:The effective rate of observation group(92.50%)was significantly higher than that of con-trol group(76.32%),with statistical significance(P<0.05);the wave amplitude of P-VEP P100 in observation group were signifi-cantly greater than in control group,and the incubation period was significantly shorter than control group,with statistical signifi-cance(P<0.05);visual acuity under different spatial frequency contrast were significantly higher than control group,and correc-tion convergence range and correction separation range of observation group were significantly greater than those of control group, while corrected near stereo vision was significantly less than control group,with statistical significance (P<0.05). There was no statistical significance in ADR incidence between 2 groups (P>0.05). CONCLUSIONS:Levodopa combined with comprehensive therapy can improve the function of visual central neurons,and improve visual acuity and binocular stereo vision functions so as to improve therapy efficacy.

Objective To explore the effects of residual renal function (RRF) on quality of life (QOL) in patients with continuous ambulatory peritoneal dialysis (CAPD),and analyze the factors influencing QOL.Methods One hundred and eighteen patients treated with CAPD for at least 3 months in No.455 Hospital of People's Liberation Army were enrolled.All patients were divided into two groups according to residual glomerular filtration rate (rGFR):the group with RRF [rGFR≥ 1 ml·min-1 · (1.73 m2)-1],and the group without RRF [rGFR ＜ 1ml · min-1 · (1.73 m2)-1].The demographic characteristics,laboratory data,cardiothoracic ratio,dialysis adequacy parameters,rGFR,blood pressure,urine volume,ultrafiltration volume and dialysis prescription were investigated.Patient's QOL was evaluated by Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36).Results There was no significant differences between the groups with and without RRF in the age,gender,causes of disease,complication,body mass index (BMI),systolic blood pressure (SBP),diastolic blood pressure (DBP),haemoglobin (Hb),cholesterol,triglyceride,high-density lipoprotein,low-density lipoprotein,normalized protein catabolic rate (nPCR) and cardiothoracic ratio (all P ＞ 0.05).Compared with the patients with RRF,PD duration,ultrafiltration volume,serum creatinine (Scr),calcium,phosphorus,C-reactive protein (CRP),parathyroid hormone (PTH) and peritoneal dialysis dose in the patients without RRF were significantly higher,and urine volume,serum albumin (Alb),potassium,and urea total Kt/V were significantly lower (all P ＜ 0.05).The patients without RRF had a significantly lower score in physical function and physical component summary as compared to the patients with RRF (all P ＜ 0.05).There was no significant differences in role physical,bodily pain,general health,vitality,social function,role emotional,mental health,mental component summary and SF-36 scores (all P ＞ 0.05).Simple linear regression showed that there was no correlation between rGFR and SF-36 scores (β=1.330,P=0.070).Multiple linear regression revealed that SF-36 scores were correlated with CRP (β=-0.477,P ＜ 0.001),Scr (β=0.020,P ＜ 0.001),cardiothoracic ratio (β=-57.823,P=0.004),Alb (β=0.772,P=0.016) and ultrafiltration volume (β=-0.006,P=0.031),but not correlated with rGFR (β=0.099,P=0.302).Conclusions PD patients without and with RRF perceived different scores in physical health,but their scores were similar in mental health and QOL.RRF was no related to QOL in PD patients.Chronic inflammation,fluid overload and malnutrition were the main factors that affect QOL.

Objective To evaluate the effects of laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy on weight control in morbidly obese patients.Methods 48 patients with morbidly obesity underwent obese surgery (laparoscopic Roux-en-Y gastric bypass and laparoscopic sleeve gastrectomy) from Dec.2013 to Dec.2015,and 1-year follow-up study.The general situation of obesity and biochemical indicators were compared and analyzed.Results There were 20 cases in gastric bypass group and 28 cases in sleeve gastrectomy group.The excess weight loss percentage(％EWL)was 73±0.04 in gastric bypass group and 59±0.05 in sleeve gastrectomy group(P=-0.03).There was no statistical difference in weight change between the two groups.Low density lipoprotein cholesterol (LDL) level in gastric bypass group was significantly lower than that in sleeve gastrectomy group at 1 year after surgery (2.42±0.16 vs 3.29±0.20,P=0.006),while folic acid level was significantly higher than that in sleeve gastrectomy group(15.58±1.99 vs 7.59±1.59,P=0.022).Conclusions The one-year follow up shows there is no significant difference in the efficacy of weight control between the two groups.Gastric bypass group may be superior to gastrectomy group in nutrition indexes.However,it is just a short-term postoperative efficacy in morbidly obese patients,long-term weight control effects and obesity related diseases control need to be further explored.

Objective To investigate the risk factors and clinical characteristics of deep venous thromboembolism (DVT) of the lower extremities in Chinese people. Methods The clinical manifestations and risk factors in 2742 DVT patients diagnosed by phlebography were retrospectively studied. Results DVT made up 22.39% of all the venous diseases of the lower extremity. The most common clinical presentations of DVT were swelling and pain (92. 34% ), varicose vein ( 32. 57% ), pigmentation (24. 95% ) and ulceration( 18.45% ). The left lower extremity was more frequently involved. The whole limb type was 60. 09%, 80. 23% DVT patients had identified risk factors including age over 40 years old (76. 29% ), history of major surgery ( 12. 18% ) and severe trauma ( 8.42% ), pregnancy and the puerperium ( 4. 87% ). The history of general surgery ( 26. 05% ), vascular surgery ( 23. 35% ), gynaecoiogy and obstetrics (20. 96% ), orthopaedics ( 16. 47% ) and urinary surgery (7.49%) was among the most common surgery. Primary hypercoagulable syndrome was identified in 0. 22% DVT patients. Conclusion DVT makes up 22. 39% of the disease of veins of the lower extremity. The most common clinical presentations of DVT were swelling and pain. The most common risk factors were age over 40 years, major surgery, severe trauma. Primary hypercoagulable syndrome is a heritage risk factor for DVT pathogenesis.

We amplified genes encoding UDP-glucose dehydrogenase, ecohasB from Escherichia coli and spyhasB from Streptococcus pyogenes. Both ecohasB and spyhasB were inserted into T7 expression vector pRX2 to construct recombinant plasmids pRXEB and pRXSB, and to express in E. coli BL21(DE3). After nickel column purification of UDP-glucose dehydrogenases, the enzymes were characterized. The optimum reaction condition of spyHasB was at 30 °C and pH 10. The specific activity reached 12.2 U/mg under optimum condition. The optimum reaction condition of ecoHasB was at 30 °C and pH 9. Its specific activity reached 5.55 U/mg under optimum condition. The pmuhasA gene encoding hyaluronic acid synthase was amplified from Pasteurella multocida and ligated with ecohasB and spyhasB to construct the coexpression vectors pBPAEB and pBPASB, respectively. The co-expression vectors were transformed into E. coli BW25113. Hyaluronic acid (HA) was produced by biotransformation and the conditions were optimized. When recombinant strains were used to produce hyaluronic acid, the higher the activity of UDP-glucose dehydrogenase was, the better its stability was, and the higher the HA production could reach. Under the optimal conditions, the yields of HA produced by pBPAEB/BW25113 and pBPASB/BW25113 in shake flasks were 1.52 and 1.70 g/L, respectively, and the production increased more than 2-3 folds as previously reported.
Biotransformation ; Escherichia coli ; enzymology ; Genetic Vectors ; Glucuronosyltransferase ; genetics ; Hyaluronan Synthases ; Hyaluronic Acid ; metabolism ; Pasteurella multocida ; enzymology ; Streptococcus pyogenes ; enzymology ; Uridine Diphosphate Glucose Dehydrogenase ; metabolism

Objective To study the effects of verussurinine (VSRN), an alkaloid isolated from Veratrum nigrum var. ussuriense alkaloids (VnA), against thrombosis and its platelet aggregation inhibitory activity in rats in order to find out whether VSRN is the antithrombotic active ingredient of VnA. Methods The electrically induced rat carotid artery thrombosis and stasis-induced rat inferior vena cava thrombosis models were used to evaluate the anti-arterial and anti-venous thrombosis effect of VSRN, respectively. Borns turbidimetric method was used to examine the in vivo and in vitro anti-platelet effect so as to investigate the antiplatelet aggregation of VSRN. Results In comparison with saline, VSRN in five different doses (1.25—20.00 ?g/kg) showed significantly and dose-dependently prolonged occlusion time (OT) of carotid artery injured by electrical stimulation and reduced thrombus dry weight of inferior vena cava ligated for 4 h to cause stasis. Platelet aggregation was found to be inhibited by VSRN in the doses of 1.25—5.00 ?g/kg and at the concentration of 6.25—50 ?g/L in both in vivo and in vitro test. Conclusion VSRN has powerful arteriovenous antithrombosis and antiplatelet aggregation of rats. The antithrombotic effect of VSRN is related to its platelet aggregation inhibitory activity. The above findings indicate that VSRN is an antithrombotic active ingredient of VnA.

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