Objective To explore the influence of intravesical chemotherapy combined with hyperthmia on levels of insulin growth factor( IGF) and tumor necrosis factor( TNF) in bladder cancer after operation. Methods 64 cases of transitional cell carcinoma of bladder accepted TURBt were randomly divided into two groups: intravesical chemotherapy combined with hyperthmia group and intravesical chemotherapy group. Levels of ICF and TNF in two weeks before therapy 、two weeks after therapy, four weeks after therapy were tested. Results The IGF levels were (65.97±5.25)μg/L,(49.93±1.98)μg/L,(36.82±1.89)μg/L in intravesical chemotherapy combined with hyperthmia group and(61.87 ±5.41)μg/L, (57.86 ±2. 18) μg/L, (48. 68 ±2. 26) μg/L in intravesical chemotherapy group. The TNF levels were(2.32 ±0. 36)μg/L, (3. 84 ±0. 31) μg/L, (8. 79 ±0. 46)μg/L in intravesical chemotherapy combined with hyperthmia group and(2. 21 ±0. 19)μg/L,(2. 89 ±0.47) μg/L, (3. 87 ±0.61)μg/L in intravesical chemotherapy group. The influence of intravesical chemotherapy with hyperthmia on levels of IGF and TNF were significant than intravesical chemotherap, and the influence degree showed in time-dependent manner (all P ＜ 0. 05 ). Conclusion Intravesical chemotherapy combined with hyperthmia had curative effect in inhibiting the recurrence of tumor after operation.

Objective To establish a method of primary culture of human preadipocyte in a serum-free medium. Methods Collangenase digestion was used to dispart preadipocyte.The cells were identified by microscopy stained by oil red O and determination of the activity of Glycerol-3-phosphate dehydronase(G-3-PDH). Results The primary cultured human preadipocyte proliferated in the aserum-free medium successfully.In the differential serum-free medium the cells turned to be round on the 4 th day.The adipose drops began to cumulate in the cells,and to the most quantity until the 21 st day.Conclusion The human preadipocyte can be primarily cultured and induced to differentiate in serum-free medium,which is the base for researching the effects of hormones and factors to the proliferation and differentiation of preadipocyte.

Objective To observe the clinical change of cytokines expression in peripheral blood in patients with allergic asthma and its significance .Methods Forty patients with allergic asthma and thirty healthy controls were enrolled .The concentrations of IL‐17 ,IL‐22 and IL‐10 in peripheral blood were measured by ELISA ;the serum IgE levels were measured by electrochemical lumi‐nescence method ;The eosinophil proportion was detected by blood cell analyzer ;the IL‐17 ,IL‐22 ,IL‐10 and the severity of asthma were conducted Pearson correlation analysis .Results The level of serum IgE and eosinophil proportion was significantly higher in patients with allergic asthma compared with the controls (P<0 .05);compared with the control group ,the concentration of IL‐17 and IL‐22 in peripheral blood of patients with allergic asthma were increased ,but the expression of IL‐10 were decreased (P<0 .05);the level of IL‐17 and IL‐22 were positively correlated with severity of allergic asthma (P<0 .01) ,but the level of IL‐10 was negatively correlated with severity of allergic asthma (P<0 .05) .Conclusion The expression of IL‐17 ,IL‐22 and IL‐10 play an im‐portant role in the pathogenetic mechanism of allergic asthma ,and a dynamic monitoring could be helpful for the diagnoses and treatment of allergic asthma .

A kinetics model was developed for predicting and simulating immobilized cellulase performance, which follows Michaelis-Menten kinetics with competitive product inhibition. Taking into account the effects of competitive product inhibition, inner diffusional limitation, substrate concentration and carrier size, the substrate distribution and the product distribution in carriers were investigated, and the effectiveness factors were also calculated over a wide range of parameters. The effects of competitive product inhibition are shown to increase the substrate concentration in the carrier, and, additionally, to increase the effectiveness factors slightly. With the increase of inner diffusion coefficient, both the effectiveness factors and the substrate concentration in the carrier increase. As the carrier size increases, on the other hand, these values decrease. The effectiveness factors and the substrate concentration in the carrier are found to increase when substrate concentration in the reaction system increases.
Cellulase ; metabolism ; Diffusion ; Enzymes, Immobilized ; metabolism ; Kinetics ; Microspheres ; Models, Chemical ; Particle Size ; Substrate Specificity

Ten glycosidic compounds were isolated from an ethanol extract of Machilus wangchiana by a combination of various chromatographic techniques including column chromatography over silica gel and Sephadex LH-20 and reversed-phase flash chromatography and HPLC. Their structures were identified by spectroscopic data analysis (IR, MS, and NMR) as icariside B1 (1), boscialin-3-O-β-D-glucopyranoside (2), pisumionoside (3), isolariciresinol-9'-O-β-D-xylopyranoside (4), 5'-methoxyisolariciresinol-9'-O-β-D-xylopyranoside (5), lyoniresinol-9'-O-β-D-xylopyranoside (6), (E) -4-hydroxyphenylprop-7-ene 4-O-β-D-glucopyranoside (7), (E) - 4-hydroxy-3-methoxyphenylprop-7-ene 4-O-α-L-rhamnopyranosyl-(1 --> 6) -β-D-glucopyranoside (8), 4-hydroxy-3-methoxyphenylprop-8-ene 4-O-β-D-xylopyraosyl-(1 --> 6) -β-D-glucopyranoside (9), and 4-hydroxy-3,5-dimethoxyphenylprop-8-ene 4-O-α-L-rhamnpyranosyl-(1 --> 6)-β-D- glucopyranoside (10), respectively.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Glycosides ; chemistry ; isolation & purification ; Lauraceae ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

Microbial nitrilases have attracted increasing attention in nitrile hydrolysis for carboxylic acid production in recent years. A bacterium with nitrilase activity was isolated and identified as Pseudomonas putida CGMCC3830 based on its morphology, physiological and biochemical characteristics, as well as 16S rRNA gene sequence. The nitrilase production was optimized by varying culture conditions using the one-factor-at-a-time method and response surface methodology. Glycerol 13.54 g/L, tryptone 11.59 g/L, yeast extract 5.21 g/L, KH2PO4 1 g/L, NaCl 1 g/L, urea 1 g/L, initial pH 6.0 and culture temperature 30 degrees C were proved to be the optimal culture conditions. It resulted in the maximal nitrilase production of 36.12 U/mL from 2.02 U/mL. Investigations on substrate specificity demonstrate P. putida nitrilase preferentially hydrolyze aromatic nitriles. When applied in nicotinic acid synthesis, 2 mg/mL P. putida cells completely hydrolyzed 20.8 g/L 3-cyanopyridine into nicotinic acid in 90 min. The results indicated P. putida CGMCC3830 displayed potential for industrial production of nicotinic acid.
Aminohydrolases ; biosynthesis ; Culture Media ; Hydrolysis ; Niacin ; biosynthesis ; Nitriles ; metabolism ; Pseudomonas putida ; enzymology ; Pyridines ; metabolism ; RNA, Ribosomal, 16S ; genetics ; Substrate Specificity ; Temperature

ObjectiveTo evaluate the safety and efficacy of total pelvic reconstruction surgery with Prosima in treatment of pelvic organ prolapse (POP) stage Ⅲ.Methods From July 2010 to December 2011,31 patients with POP stage Ⅲ undergoing total pelvic reconstruction surgery with Prosima were enrolled in this prospective study.Among two cases complicated with stress urinary incontinence underwent transobturator tension-freevaginaltapeconcomitantlywithtotalpelvicreconstructionsurgerywith Prosima.Clinical parameters during peri-operation were recorded and compared.Pelvic organ prolapse quantitative examiuation(POP-Q)andanatomicimprovementinthesepatientsafter surgery were analyzed.Comparisons of pelvic floor impact questionnaire-short form 7 ( PFIQ-7 ) and pelvic organ prolapse-urinary incontinence sexual questionnaire-short form 12 (PISQ-12) in these patients before and after surgery were used to evaluate quality of life and quality of sexual life.ResultsThe mean operating time was (55 ± 13) minutes,mean blood loss was (66 ± 25 ) ml.No severe intraoperative complications were observed.All patients were able to recover spontaneous mieturation within 5 days.Two cases experienced pelvic hematoma with diameters less than 7 cm,and resolved later.Another case was urinary tract infection.At the median follow-up 6 months ( 1 - 15 months),the rate of anatomic success defined as the leading vaginal edge above the hymen was 94％ (29/31).There were significant improvements in Aa,Ba,Ap,Bp,and C (P ＜0.01 ) by POP-Q.Two patients showed recurrent prolapse at 3 months and 1 year after surgery,without the need of further operation.The median score of post-operative PFIQ-7 was 0 point at 6 months and 0 point at 12 months after operation,respectively,which were significantly lower than that of 50 points pre-operation ( P ＜ 0.01 ).And there was no significant difference in the average score of PISQ-12 before and after surgery [ ( 30 ± 6) points versus (31 ± 4) points ] ( P ＞ 0.05 ).The rate of mesh exposure was 16％ ( 5/31 ),all the 5 cases occurred within 6 months and was cut in clinic.There was no case of de novo urinary incontinence and de novo dyspareunia.Conclusions Pelvic rcconstruction surgery with Prosima is safe and efficacy in treatment of POP stage Ⅲ.It could improve quality of life remarkably without influence on sexual quality of life.

Objective To evaluate the safety and efficacy of ischiospinous ligament fixation in treatment of stage Ⅲ pelvic organ prolapse (POP).Methods Between March 2007 and December 2009,65 patients with stage Ⅲ POP who underwent ischiospinous ligament fixation in Peking Union Medical College Hospital were enrolled in this study.Among 21 cases complicated with stress urinary incontinence (SUI) underwent transobturator tension-free vaginal tape (TVT-O) concomitantly.Clinical parameter associated with perioperation,objective and subjective successful rate and complication were recorded.Results The mean operating time was (71 ±22) min and the mean blood loss was (93 ±40) ml.No intraoperative blood transfusion and viscera injury cases were observed.All patients were able to recover spontaneous micturition.Two cases experienced pelvic hematoma with diameter of 7 cm,after conservative treatment,they all recovered later.The objective success rate was 100％ at 6 weeks follow-up by POP-Q scoring.And 46.2％ (30/65) were followed up at range of 1 -3 years,recurrence rate were 10％ (3/30),and however,no operation were needed.At median of 20 months,all patients were followed up by telephone,the subjective successful rate was 95.4％ (62/65).At 6 weeks after operation,6.2％ (4/65) patients suffered from lower back pain and right thigh pain,visual analogue scale of pain was at range of 3 to 5,which relieved gradually after treatment and disappeared totally within 2 years.The rate of suture exposure was 10％ (3/30),the new urinary incontinence 4.6％ (3/65),and the new dyspareunia 12.5％ (3/24).Conclusions Ischiospinous ligament fixation is a safe and efficacious management.

Objective To evaluate clinical and sexual outcomes in women with severe uterine prolapsed at child-bearing period undergoing laparoscopic high uterosacral ligament suspension combined with cervical amputation.Methods From November 2007 to March 2010,34 patients (≤50 years old) with severe uterine prolapse (prolapse group) who had already given birth and underwent laparoscopic high uterosacral ligament suspension combined with cervical amputation in Peking Union Medical College Hospital were enrolled in this retrospective study.All patients were defined as Pelvic Organ Prolapse Quantification (POP-Q) stage Ⅲ.Follow-up was performed at 1,6,and 12 months,and then annually.Anatomic failure was defined as ≥ 1 pelvic compartment classified as POP-Q ≥ stage Ⅱ.Sexual outcomes were assessed at baseline and 3-year follow-up according to validated Short-Form Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12).Thirty one age-matched women who underwent health examinations during the same time period were selected as a healthy control group.Results Mean age of women at prolapse group were (39 ±5) years and average surgery time were (51 ±8) minutes.No severe intraoperative complications occurred,including urethral twist,bladder and rectum injury,pelvic hemotoma.All patients were followed up for more than 3 years,the mean following up period was 40 months (36-64 months).Based on stage Ⅱ of POP-Q as recurrence criteria,the anatomical success and patient satisfaction rates were both 100％ (34/34).POP-Q point C and D measurements were significantly higher after surgery then those at preoperative values [C:(-5.4±0.6) cm versus (2.2 ±0.7) cm,D:(-6.7 ±0.4) cm versus (-4.0 ±0.7) cm; P ＜0.01 for all].Three years postoperatively,33 patients were sexually active.Among the 94％ (31/33) patients who answered the PISQ-12 questionnaire,there was significant improvement in post-and preoperative total PISQ-12 scores (38 versus 26,P ＜ 0.01) and in all three subscale PISQ-12 domains (P ＜ 0.01 for all).The postoperative PISQ-12 score was similar to that of the control group (38 ± 6 versus 37 ± 3,P ＞ 0.05).Conclusion Laparoscopic high uterosacral ligament suspension combined with cervical amputation conferred satisfying long-term anatomic and sexual function outcomes in women at child-bearing age.

Objective To evaluate the safety and efficacy of magnetic resonance-guided focused ultrasound surgery (MRgFUS) in treatment of symptomatic uterine leiomyoma among Chinese reproductive age women.Methods From April 2010 to April 2012,80 premenopausal women with symptomatic leiomyoma volunteered to participate in this prospective study in Department of Outpatient of Peking Union Medical College Hospital.Among 23 reproductive aged patients with size of uterus less than 16th gestational weeks,2.5 to 10 cm of diameter of myoma,less than 10 myomas and expressing symptoms clearly were treated by MRgFUS.Treatment data,non-perfused volume ratio (NPVR) and adverse events were recorded.After treatment,patients were followed up at 1 week,1,3,6,12 and 24 months,respectively.Patients at initial screening and each time of the follow-up filled out uterine fibroid symptoms quality of life (UFS-QOL),which include symptoms severity score (SSS) and health-related quality of life (HRQL).The volumes of leiomyoma and uterine were evaluated on MRI before and after the treatment (at 6 and 12 months,respectively).Before operation,routine blood test were performed on all patients,anemia patients at 3 months and 1 year after treatment were checked with blood test.Results (1) Treatment data and adverse events:the mean therapeutic temperature was (69 ± 7) ℃,the mean treatment time was (144 ±62) min,the mean NPVR was (62 ±23)％.Adverse events included mild erythema(1/23),abdominal cramp(8/23),vaginal discharge (5/23),and leg numbness (4/23).(2) The rate of secondary surgery:one patient was treated by myoectomy and hysterectomy within one year following up and 4 patients chose surgical treatment during the second-year follow-up.(3) Volume change:the volumes of leiomyoma before the treatment and 6,12 months after the treatment are 75.6 (P25 =43.8,P75 =128.9),52.3 (P25 =23.8,P75 =111.2),45.9 (P25 =26.3,P75 =71.7) cm3,respectively; and the volumes of uterine before the treatment and 6,12 months after the treatment are 270.0 (P25 =208.4,P75 =390.3),216.4 (P25 =151.1,P75 =290.0),200.0 (P25 =149.1,P75 =267.6) cm3,respectively.Both leiomyoma and uterine volumes decreased significantly after treatments (P ＜ 0.01).(4) UFS-QOL change:the symptoms severity score (SSS) before the treatment and 3,12 months after the treatment are (34 13),(22 ± 11),(19 ± 12),which decreased significantly (P ＜ 0.01).The health-related quality of life (HRQL) before the treatment and 3,12 months after the treatment are (74 ± 15),(82 ± 13),(89 ± 10),which increased dramatically (P ＜0.01).(5) Hemoglobin(HGB) change:eleven patients suffered from anemia before treatments,the mean HGB before treatment was (87 ±6) g/L and were (106 ± 14) g/L 3 months after treatment,(112 ± 10) g/L 12 months after treatment.The HGB was increased significantly after treatments (P＜0.01).Conclusions MRgFUS is a safe and effective non-invasive management for symptomatic uterine leiomyoma in short-term follow up.But there is additional treatment ratio after MRgFUS.