Objective To summarize clinical outcomes of interventional therapy on children with common congenital heart diseases(CHD).Methods A retrospective study was conducted.One hundred and fourteen patients with CHD were selected as our subjects,who underwent catheter interventional therapy in the Second Affiliated Hospital of Zhengzhou University from Jan.2004 and Dec.2012.The size of occluder was chose according to intraoperative echocardiography or cardiac imaging measurements,and occluder was released under assisted monitoring by subtraction angiography or cardiac ultrasound.Results There are all together 112 patients got the therapy successfully,2 cases failed(occluder detachment),and the success rate of operation was 98.2％.After the success of interventional,echocardiography examination showed that 11 cases were with star point across shunt,but the function of the around valve was not affected.One months after operation,echocardiography examination showed star point across shunt of 11 cases were disappeared,and no occluder was shifted as well as no thrombosis formed.Three months after operation,chest radiograph showed pulmonary congestion decreases and heart shadow was shrink.Thirty-eight cases were with three tricuspid regurgitation before operation and 32 cases were without reflux at 3 months after operation,and 6 cases relieved significantly.The patients were followed up for 6 months or 3 years,activity endurance was significantly improved than that before operation.No occluder was shiftand hemolysis and arrhythmia occurred.Meanwhile,No thrombosis or embolism occurred.Conclusion Interventional treatment for children with congenital heart disease is proved as a safe,effective methods and it have broad prospects in clinical application.

OBJECTIVETo evaluate a new technique for treatment of the symblepharon caused by physical and chemical burn.

METHODSThirty-eight patients with 40 eyes were undergoing the treatment. It was carried out to reconstruct the conjunctival fornix by pulling the remained conjunctive backward from the corneal limbus in serious stages.

RESULTSThirty-eight patients (40 eyes) were treated with this technique, with the successful results of 13 patients (13 eyes) in 2 times, 19 patients (21 eyes) in 3 and 6 patients (6 eyes) in 1. Only one case was failure.

CONCLUSIONThe above mentioned technique could be a safe and effective way for treatment of symblepharen.

Amnion ; Conjunctival Diseases ; etiology ; therapy ; Eye Burns ; complications ; Eyelid Diseases ; etiology ; therapy ; Humans ; Reconstructive Surgical Procedures ; Tissue Adhesions ; etiology ; therapy

OBJECTIVETo observe the urinary S-phenylmercapturic acid (S-PMA) variation in the benzene dynamic exposed rat models and benzene exposed workers, and study the feasibility of use of urinary S-PMA as the biomarker in benzene exposed.

METHODSIn an animal model study, forty-eight adult Wistar rats were randomly divided into 4 groups: the control group, low-dose group, middle-dose group and high-dose group. The exposed groups were dynamically exposed for 28 days (4 periods) by benzene and the concentration was monitored. The urine was immediately collected after every exposure period and detected by the liquid chromatographic/mass spectrometry methods. In a cohort study, eighty benzene exposed workers in a ship-yard in Guangzhou were selected as the exposed subjects while forty healthy officers in the same shipyard who were not occupationally exposed to benzene were treated as the control. The urine was collected after work shift. The urinary S-PMA and the benzene in the workplace was treated as the rat model.

RESULTSIn the animal model study, the urinary S-PMA increased along with the environment benzene in every period and had significantly difference in the different exposed groups (P < 0.01 or P < 0.05), but did not change along with the exposed time course (P > 0.05). In the cohort study, the urinary S-PMA in the high-dose group [(27.2 +/- 7.9)microg/L] was significantly higher than the low-dose group [(13.6 +/- 3.4)microg/L] (P < 0.01). Otherwise, the background of urinary S-PMA was lower than 5microg/L in both workers and rat models.

CONCLUSIONThe urinary S-PMA can be proposed as a sensitive biomarker of occupational benzene exposure.

Acetylcysteine ; analogs & derivatives ; urine ; Adult ; Animals ; Benzene ; administration & dosage ; toxicity ; Environmental Exposure ; adverse effects ; Female ; Humans ; Male ; Middle Aged ; Rats ; Rats, Wistar ; Young Adult

OBJECTIVE: To evaluate the effect of anti-inducible costimulator monoclonal antibody (anti-ICOS-Ab) combined with low-dose cyclosporine (CsA) on the survival quality and chronic rejection of heart allografts in rats. METHODS: The rats' heterotopic cardiac transplantation model was established by Ono's method. The recipient rats were randomly divided into an isotransplantation control group and an allotransplantation experiment group. The experiment group was re-classified into a placebo group, a normal-dose CsA group, an anti-ICOS-Ab group, a low-dose CsA group, and an anti-ICOS-Ab combined with low-dose CsA group. The survival time of grafts was monitored. The cardiac grafts were harvested for histological analysis. Flow cytometric analysis was employed to detect the population of CD25+CD4+ in peripheral lymphocytes from recipients with a long-term surviving graft. RESULTS: The survival time of the cardiac allografts in CsA-treated groups was significantly longer than that in placebo group (P<0.05). The survival time of the cardiac allografts in anti-ICOS-Ab combined with low-dose CsA group was significantly longer than that in low dose CsA-treated group (P<0.05). There was no significant difference in the survival time of the cardiac grafts between the anti-ICOS-Ab group and the placebo group (P>0.05). Compared with the normal-dose CsA group, the chronic rejection lesions of the anti-ICOS-Ab combined with low-dose CsA treatment group significantly were alleviated in the long-term survival grafts, and the proportion of CD4+CD25+ regulatory T cell increased in peripheral blood. CONCLUSION The anti-ICOS-Ab combined with low-dose CsA can prolong the survival of cardiac allografts and alleviate the chronic rejection significantly. The high expression level of CD4+CD25+ regulatory T cell is beneficial to the long-term survival of grafts.
Animals ; Antibodies, Monoclonal ; therapeutic use ; Antigens, Differentiation, T-Lymphocyte ; immunology ; Chronic Disease ; Cyclosporine ; administration & dosage ; therapeutic use ; Drug Therapy, Combination ; Graft Rejection ; drug therapy ; Graft Survival ; drug effects ; Heart Transplantation ; adverse effects ; Inducible T-Cell Co-Stimulator Protein ; Random Allocation ; Rats ; T-Lymphocytes, Regulatory ; immunology

OBJECTIVETo study the epidemiological characteristics of liver diseases in a rural population in Southern Guangxi, China.

METHODSThe enzyme immunoassays was used to detect of HBsAg and AFP. AFP positive serum samples were further examined for concentration of AFP by using a radio immunoassays. Liver morphological changes were measured with ultrasonography of type B.

RESULTSThe positive rates of HBsAg in the studied population was 17.8% (2800/15,701). The prevalence rates of viral hepatitis B, cirrhosis, primary liver cancer, clonorchiasis, fatty liver disease, alcoholic liver disease were 1.1% (173/15,701), 0.4% (63/15,701), 299.3 per 100,000 (47/15,701), 6.6% (1036/15,701), 4.8% (754/15,701) and 0.3% (47/15,701), respectively. The positive rates of HBsAg and the prevalence rates of viral hepatitis B, cirrhosis, primary liver cancer, clonorchiasis, fatty liver disease in male were significantly higher as compared with those in female (5.98 < or = chi(2) < or = 394.78, P < 0.01). No difference was observed in the prevalence rates of liver cavernous hemangioma and hepatic cysts between male and female. The prevalence rates of intrahepatic bile duct stones was significantly higher in female than in male (chi(2) = 30.80, P < 0.01). The positive rates of HBsAg and the prevalence rates of viral hepatitis B and clonorchiasis were decreased with age. But the prevalence rates of cirrhosis, primary liver cancer, fatty liver disease, alcoholic liver disease, liver cavernous hemangioma, hepatic cysts and intrahepatic bile duct stones were increased with age.

CONCLUSIONThe rural areas in the southern Guangxi are high prevalence regions of liver illness, and the male resident are even at high risk.

Adult ; China ; epidemiology ; Cross-Sectional Studies ; Fatty Liver ; epidemiology ; Female ; Hepatitis B ; epidemiology ; Humans ; Liver Cirrhosis ; epidemiology ; Liver Diseases ; epidemiology ; Liver Neoplasms ; epidemiology ; Male ; Middle Aged ; Prevalence ; Rural Population

Methylotrophic yeast, Pichia pastoris was used to express recombinant batroxobin, and a technology route of producing recombinant protein was finally established. We synthesized batroxobin gene artificially by means of recursive PCR. pPIC9-batroxobin was constructed and transformed into Pichia pastoris GS115 (his4). Recombinant batroxobin was expressed in yeast engineering strain and it was purified from the culture supernatant. 10 mg of recombinant batroxobin was purified from 1 liter fermentation media, it exhibited specific activity of 238 NIH units/mg and had molecular weight of 30.55 kD. The purified recombinant protein converted fibrinogen into fibrin clot in vitro, and shortened bleeding time in vivo. This study laid a foundation of development of hemostatic of recombinant snake venom thrombin-like enzyme.
Animals ; Batroxobin ; genetics ; metabolism ; pharmacology ; Electrophoresis, Polyacrylamide Gel ; Gene Expression ; Hemorrhage ; prevention & control ; Hydrogen-Ion Concentration ; Male ; Mice ; Pichia ; genetics ; Polymerase Chain Reaction ; Recombinant Proteins ; metabolism ; pharmacology ; Time Factors

OBJECTIVETo investigate the effects of Kangquan Recipe (KQR) on sex steroids and cell proliferation in an experimental benign prostatic hyperplasia (BPH) model in rats.

METHODSSeventy-two SD rats were randomly divided into six groups: the normal group, the model group, the finasteride group, and the low-, middle-, and high-dose KQR groups, 12 in each group. Except those in the normal group, the rats were injected with testosterone after castration for the establishment of BPH model and then given respectively with normal saline, finasteride, and low-, middle-, and high-dose of KQR for 30 days. The levels of plasma testosterone (T) and estradiol (E(2)) were determined by enzyme-linked immunosorbent assay (ELISA), and the mRNA expression ) of proliferating cell nuclear antigen (PCNA) in prostate tissue was detected by reverse transcription-polymerase chain reaction (RT-PCR) after administration.

RESULTSCompared with the model group, the prostate weight, the plasma T, and the mRNA expression of PCNA were significantly lower, and the plasma E(2) and the ratio of E(2)/T were higher in the three KQR groups (P<0.05 or P<0.01). There was no significant difference in the prostate weight, plasma T and E(2), and ratio of E(2)/T among the finasteride group and the three KQR groups (P>0.05). The mRNA expressions of PCNA were significantly higher in the middle- and low-dose of KQR groups than those in the finasteride group (P<0.05).

CONCLUSIONKQR shows multitarget effects on experimental BPH rats, and the mechanism might be related with regulating the balance of plasma T and E(2) and decreasing the PCNAmRNA expression in prostate tissue to restrain cell proliferation in a dose-dependent manner.

Animals ; Body Weight ; drug effects ; Cell Proliferation ; drug effects ; Cookbooks as Topic ; Drug Evaluation, Preclinical ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Gonadal Steroid Hormones ; blood ; metabolism ; Male ; Medicine, Chinese Traditional ; methods ; Organ Size ; drug effects ; Proliferating Cell Nuclear Antigen ; genetics ; metabolism ; Prostate ; drug effects ; pathology ; Prostatic Hyperplasia ; blood ; drug therapy ; metabolism ; pathology ; Rats ; Rats, Sprague-Dawley

Based on the principle of the pathway engineering, a novel pathway of producing glycerol was built in E. coli. The gpd1 gene encoding glycerol 3-phosphate dehydrogenase and the hor2 gene encoding glycerol 3-phosphatase were cloned from Saccharomyces cerevisiae, respectively. The two genes were inserted into expression vector pSE380 together. A recombinant plasmid pSE-gpd1-hor2 containing polycistron was constructed under the control of the strong trc promoter. Then it was transformed into E. coli BL21. The result showed the recombinant microorganism GxB-gh could convert glucose to glycerol directly. And the recombinant microorganism GxB-gh was incubated to produce glycerol from D-glucose in the fermentor. The maximal concentration of glycerol was 46.67g/L at 26h. Conversion rate of glucose was 42.87%. The study is about "green" producing glycerol by recombinant microorganism and is also useful for further working in recombining microorganism of producing 1,3-propanediol.
Cloning, Molecular ; Escherichia coli ; genetics ; metabolism ; Fermentation ; Fungal Proteins ; biosynthesis ; genetics ; Genetic Engineering ; Glycerol ; metabolism ; Glycerolphosphate Dehydrogenase ; biosynthesis ; genetics ; Phosphoric Monoester Hydrolases ; biosynthesis ; genetics ; Saccharomyces cerevisiae ; enzymology ; genetics

1,3-propanediol (1,3-PD) is an important material for chemical industry, therefore, there is much interest in the production of 1,3-PD. The gene dhaT encoding 1, 3-propanediol dehydrogenase ( PDOR) of Citrobacter freundii was amplified by PCR. Sequence analysis of the similarity at the nucleotide and amino acid level between the gene encoding C. freundii PDOR and that of C. freundii ( U09771 ) were 78% and 90% , respectively. The recombinant plasmid pSE-dhaT was constructed by inserting dhaT gene into expression vector pSE380 and then transformed E. coli JM109. The recombinant strain was induced by IPTG to express dhaT. Further more the recombinant enzyme was purifed from recombinant E. coli by Ni-nitrilotriacetate affinity chromatography followed by Sephacral S-300 gel filtration. A single obvious protein about 42kDa could be obtained by the sodium dodecyl sulfate-polyacrylamide gel electrophoresis of recombinant enzyme. The purified enzyme was used to determined enzyme property on the substrate of propionaldehyde and 1, 3-PD. The optimal temperature and optimal pH of the purified enzyme were 37℃, 8.0 for reduction and 25℃, 10. 5 for oxidation, respectively; and the kinetic property of PDOR about Km and V max were 10. 05mmol/L, 37. 27?mol/min/mg for propionaldehyde and 1. 28mmol/L, 25. 55?mol/min/mg for 1,3-PD, respectively; The deduced dhaT gene product (388 amino acids) showed a specific reduction activity of 49. 50U/mg and oxidation activity of 79. 92U/ mg. There also have a putative iron-binding motif ( G-XX-H-X-X-A-H-X-X-G-X-X-X-X-X-P-H-G) as a fingerprint pattern in the recombinant enzyme, the motif is fully conserved among these 1, 3-propanediol dehydrogenase. It is beneficial to the researches of high producing 1, 3-propanediol by gene engineering strain.

Objective To evaluate the clinical effect of embolization of cerebral dural atreriovenous fistulas (cDAVF) of the eavemous sinus through the superior ophthalmic vein approach. Methods Twnety-seven patients with eDAVF of the cavernous sinus were embolized through the superior ophthalmic vein approach. Cerebral angiography and follow-up examination of the patients were performed to evaluate the effect ofernbolization. Results The fistulae showed complete angiographic disappearance in 15 patients, and 12 patients had blood velocity flow reduction at the fistula orifice. Ocular proptosis and chemosis deteriorated transiently in 11 patients after the procedure. The patients were followed-op for 3 to 48 months, and clinical cure was achieved in 17 patients, and 10 showed significant symptom relief. Conclusion cDAVF of the cavernous sinus can be effectively embolized through the superior ophthalmic vein approach.