AIM： To verify the therapeutic effect of pagosid in treating osteoarthritis of knee joint and retrograde spondylitis METHODS： 60 patients were randomly divided into treatment group（ pagosid） and control group（ zulida）  The clinical manifestations of osteoarthritis and spondylitis， including pain， joint dysfunction and swelling， were observed one month after treatment RESULTS： The total effective rates for osteoarthritis were 88 9％ in treatment group and 82 4％ in control group and those for spondylitis were 83 3％ in treatment group and 81 8％ in control group There were no statistical differences between two groups（ P>0 05）  CONCLUSION： Both pagosid and zulida have the therapeutic effects on inflammation， pain， swelling and dysfunction of joint， and pagosid does not induce adverse reactions， while zulida could result in considerable gastroenteric tract side reactions

Objective To investigate effect of low molecular weight heparin (LMWH)on oxidative stress and renal function in elderly patients undergoing gastrectomy of stomach neoplasms. Methods 90 elderly patients undergoing radical surgery were randomly divided into LMWH group (Ⅰ group,n=45)and control group (Ⅱ group,n=45). Patients inⅠ group received a subcutaneous injection of LMWH(100 u/kg,1/d)from the time before anesthesia induction to postoperative 5 days,and patients in Ⅱ group were given equal volume of saline. Venous blood samples were collected to determine level of malondialdehyde(MDA),aldose reductase(AR)activity level,superoxide dismutase(SOD)activity level,catalase (CAT)activity level,creatinine(Cr)and blood urea nitrogen(BUN)before anesthesia induction(T0 ),at the end of the surgery(T1 ),on postoperative 1 day(T2),3 days(T3)and 5 days(T4)respectively;urine specimen were also collected to measured albumin(Alb)and N-acetyl-beta-D-amino glycosidase enzymes(NAG)at the same time points. Results There were obvious statistical differences in MDA,AR,SOD and CAT at different time points by intra-group comparison (P<0.05 ). MDA and AR rose first and then fell in two groups,and both reached the peak at T2 ,whereas SOD and CAT had the opposite trends. There were obvious statistical differences in MDA,AR,SOD and CAT at T1 ~T3 (P<0.05 ). MDA and AR inⅠgroup at T1 ,T2 and T3 was lower than those in groupⅡ(P<0.05 ),whereas SOD and CAT inⅠgroup at T1 ,T2 and T3 were significantly higher than those in group Ⅱ(P<0.05). Cr and BUN of both groups were found no significant statistical difference within the group and between groups(P>0.05).Alb/Cr of both groups at T1 and T2 were significantly higher than those at T0 (P<0.05 ),while Alb/Cr in Ⅰ group at T1 was obviously lower than Ⅱgroup(P<0.05 ).NAG/Cr in both groups at T1 ,T2 and T3 were significantly higher than those at T0 (P<0.05 ),while NAG/Cr inⅡ group at T4 was still higher than that at T0 (P<0.05 ),and NAG/Cr inⅠgroup at T1 ~T4 was obviously lower thanⅡgroup (P<0.05 ). MDA and AR in both groups at T1 ,T2 were positively correlated with Alb/Cr and NAG/Cr respectively(P<0.05 ),whereas SOD and CAT in both groups at T1 ,T2 were negatively correlated with Alb/Cr and NAG/Cr respectively(P<0.05 ). Conclusion Oxidative stress reaction resulted from radical surgery of elderly patients is associated with perioperative renal damage. LMWH could reduce oxidative stress in elderly patients,and alleviate the kidney damage,as well as protect the renal function.

Objective To investigate the value of the manipulative reduction monitored by ultrasound for the intussusception of children.Methods One hundred and three intussusception children were dynamically observed by ultrasound,and were pressed softly beginning with the head of the intussusceptum,and observed whether there was intestinal peristalsis, and whether the intussuseeptum shortened and disappeared finally.The results were analyzed based on the size of the masse, the length of the intussusceptum,and the patients' age,and compared with the X-ray high pressure air enema.Results Fifty (48.5 ％) intussusception children were recovered.The recoverability was related to the size of the mass, the length of the intussusceptum, and the age of the children (level of cooperation).Thirty-nine patients were recovered after reexamined one hour later.The recoverability of manipulative reduction monitored by ultrasound for the mass diameter less than 2.0 cm was obviously higher than that by X-ray high pressure air enema.Conclusions Manipulative reduction monitored by ultrasound could cure almost half of the intussusception children patients directly.It could decrease the number of patients who were treated with high-pressure air enema,it could relieve the pain of the children and reduce their medical expenses.It also could be acted as a screening way to other therapies like high pressure air enema.

Cbiective: To seek for effective nursing measures with the view of reducing nooocmial infection caused by methicillin resistant staphlococcus aurcus (MRSA). Method: The factores associated with nosocomial infection caused by MRSA were analysed on 205 cases from ICU during Jan. ～Jun 2000. Results: 88.6% of staphyloooccus aureus were MRSA in ICU. The percentage of nosocomial infection caused by MRSA was 7.3%. Conclusions:The rate of nosocomial infection causes by MRSA could be effectively reduce. Following proper measures were suggested:sterilization, isolation,nursing of intubation and nanagement of respiratory tract

BACKGROUND:Previous studies have shown that a certain dose of acidic fibroblast growth factor can promote skeletal muscle satelite cel proliferationin vitro. OBJECTIVE:To investigate the effects of transfection with acidic fibroblast growth factor by electroporation on growth, proliferation and differentiation of skeletal muscle satelite cels. METHODS: Skeletal muscle satelite cels were cultured and purified, and then transfected with plasmid pSectag-GFP-aFGF by electroporation. The expression of green fluorescent protein was observed under fluorescence microscope, and the transfection efficiency was calculated. After transfection, cel cycle was analyzed by flow cytometry to draw the growth curve of skeletal muscle satelite cels. Western blot assay was employed to measure protein level of acidic fibroblast growth factor. RESULTS AND CONCLUSION: (1) Immunocytochemistry detection: The skeletal muscle satelite cels were positive for a-sarcomeric actin. (2) Transfection efficiency: At 12 hours after transfection with pSectag-aFGF, several cels showed green fluorescence, and the green fluorescent expression reached the peak at 72-96 hours after transfection with a positive rate of about 90%. (3) Cel cycle: After electrotransfection, the proportion of cels at S phase in the electroporation group was higher than that in the control group (P < 0.05). (4) Cel growth curve: At 3 days after electrotransfection, the cels entered logarithmic growth phase but the proliferation slowed down at 5 days. (5) Differentiation capacity: There were fewer myotubes and aging cels in the electroporation group than the control group. (6) Western blot assay: Acidic fibroblast growth factor protein was highly expressed in the cels transfected with target gene detected by western blot assay. These findings indicate that by using electroporation method, acidic fibroblast growth factor can be transferred into skeletal muscle satelite cels and have a high-efficiency and long-term expression, which can promote the proliferation of skeletal muscle satelite cels and inhibit formation of myotubes.

Objective To understand genomic copy number variations (CNVs) and ascertain karyotype for a 46,X0, + der(?) fetus, and investigate possibility and superiority of array-based comparative genomic hybridization (array-CGH ) in clinical cytogenetic diagnosis. Methods G-banded chromosome analysis was carried out. The whole genome of the fetus was scanned and analysed by array-CGH. The results of array-CGH were confirmed by RT-qPCR. Results G-banded chromosome analysis showed that the fetal karyotype was 46,X0, +der(?). Array-CGH revealed the derivative chromosome as Y chromosome without CNVs. A total number of 118 submicroscopic CNVs were identified. Comparable results between array-CGH and RT-qPCR were obtained for 9 novel CNVs. Conclusion Comparing with conventional cytogenetic analysis, array-CGH is of high resolution, high-throughput and high accuracy, which provides a technical platform for accurate detection of submicroscopic chromosomal aberrations.

AIM: To observe the effects of cimetidine(Cim) on platelet function and thrombosis. METHODS: After incubated with Cim in vitro , rat platelets were activated with ADP or thrombin. The platelet aggregation, platelet malondialdehyde(MDA) formation, platelet intracellular free calcium([Ca 2+ ] i), and thromboxane B 2 (TXB 2) were measured. The effects of Cim on electric-induced thrombosis in rat carotid artery were examined. RESULTS: Cim potentiated ADP induced platelet aggregation , increased the thrombin induced [Ca 2+ ] i and MDA formation, decreased TXB 2. Also, Cim shortened the duration of electric-stimulated occlution time in rat carotid artery. CONCLUSION: Cim increased platelet function and accelerated thrombosis.

ObjectiveTo study the impact of type 2 diabetes mellitus on endothelium of great saphenous vein in patients with coronary heart disease.MethodsPatients undergoing coronary artery bypass grafting were selected, 20 with type 2 diabetes mellitus (experimental group) and another 20 patients without (control group).The rings of great saphenous vein in I cm length were taken from those patients and then divided into 3 segments.The structure of endothelium was evaluated by the microscope and the changes of venous tone were measured in organ chamber at 37C with a constant supply of oxygen.Venous vasoconstriction was induced by phenylephrine (10-5 mol/L) and vasodilatation induced by nitroglycerin or acetylcholine (10-9 ～ 10-5 mol/L).ResultsMore damages of ultrastructure of the endothelium of saphenous vein were found in experimental group than in control group.There were no significant differences regarding the venous tone between the two groups (P ＞0.05) when vasoconstriction induced by phenylephrine and vasodilatation by nitroglycerin.However, the vasodilatation induced by acetylcholine was significantly decreased in experimental group than in control group (P ＜ 0.05).Conclusion Type 2 diabetes mellitus can aggravate the damage of endothelium of saphenous vein in patients with coronary artery disease.

Objective To study the effect of Perfadex and Wisconsin Unviersity solution on the function of pulmonary artery endothelium.Methods Small lobe pulmonary arteries were dissected from nine porcine lungs.The artery from each lung was cut into six rings in 2mm.Two of them were randomly incubated in Krebs,Perfadex or Wisconsin Unviersity solution (UW solution) at 4℃ for 4 hours.Endothelium-derived hyperpolarizing factor (EDHF)-mediated relaxation (percentage of-7.5 logM U46619 precontraction) induced by bradykinin or calcium ionophone A23187 in the present of indomethacin,L-NNA and oxyhemoglobin were measured at 37 ℃ in the organ chambers.Results Vasoconstriction induced by U46619 is no significant difference among three groups (P＞ 0.05).Compared with Krebs group,the relaxation induced by bradykinin or A23187 was significantly decreased in Perfadex group (P＜0.01),while there is no significant difference in UW group (P＞0.05).Conclusion Endothelium-derived hyperpolarizing factor (EDHF) plays an important role in endothelium-mediated relaxation of porcine pulmonary artery.EDHF-mediated relaxation is impaired when the lung preserved with Wisconsin Unviersity solution,wheras its function is not affected by Perfadex solution.