Objective: To observe effects of different sulfonylurea compounds on expression of sulfonylurea receptor 2 (SUR2) in myocardium of the Goto-Kakizaki (GK) rats. Methods: Spontaneous diabetic GK rat models were divided into 6 groups: the diabetes model group, the Glibenclamide group, the Glipizide group, the Gliclazide group, the Glimepiride group and the positive control group(treated with insulin), with 12 rats in each group. A normal control group was also set up for comparison. The expression of SUR2 in myocardium of the GK rats was investigated by radioligand binding assay. SUR2 mRNA expression in the myocardial cells of rats was detected through reverse transcriptase-polymerase chain reaction (RT-PCR). Results: Twelve weeks later, no significant difference was found in the SUR2 receptor density(Bmax)and affinity(Kd) between the sulfonylurea treated groups and the other 3 groups (P>0.05). There was no significant difference in SUR2 mRNA expression between the diabetic, insulin-treated diabetic and control groups(P>0.05). Cardiac SUR2 mRNA levels were not significantly different between sulfonylureas-treated diabetic and non-treated diabetic rats (P>0.05). Conclusion: The diabetes itself does not affect the sulfonylurea receptor(SUR2) expression in myocardial tissues. Sulfonylureas at treatment dosage have no effect on receptor expression of SUR2.

Objectives To investigate the clinical significance of CYP2C19 genotype detection for antiplatelet therapy of elder cardiovascular and cerebrovascular diseases(CCVD).Methods We enrolled all elderly patients with either cardiovascular or cerebrovascular disorders who received clopidogrel as mono drug or in combination with another antiplatelet drug aspirin as secondary prevention for more than 12 months in our hospital from January to August 2015.Somatotypes of CYP2C19 genotypes of all participants were assessed to analyze the relapse of cardiac-cerebral vascular diseases in these patients.Results A total of 250 patients were enrolled,including 179 male and 71 female,with average age of (85.2 ± 7.9) years.Among these patients,there were 97 (38.8％) cases with EM CYP2C19 genotypes,110 cases(44.0 ％) with IM CYP2C19 genotypes,43 cases(17.2 ％) with PM CYP2C19 genotypes.When treated with clopidogrel for antiplatelet in secondary prevention process,the rate of the relapse in cardiovascular event was 34.9％ and higher in PM CYP2C19 genotype than in EM and IM CYP2C19 genotype (19.6 ％ and 15.5 ％,respectively) (x2 =7.251,P =0.027).This phenomenon was similar to patients who received stent implantation(x2=6.393,P =0.041).However,no statistically significant difference was observed in the recurrence rate of cerebral vascular disease between three different genotypes(EM 29.9 ％,IM 20.0 ％,PM 27.9％,x2 =2.880,P =0.237).Conclusions Our results highlight that CYP2C19 genotype might be a potential guidance for secondary prevention of cardiovascular and cercbrovascular disorders among elderly patients.Clopidogrel may be less effective in patients with SM CYP2C19 genotype than those with EM or PM CYP2C19 genotype for secondary prevention of cardiovascular disease.

Objective:To observe the effect of conversion from immediate-release tacrolimus (Tac) to extended-release Tac on kidney function in stable kidney transplant recipients.Methods:83 stable kidney transplant recipients who were converted from immediate-release Tac to extended-release Tac in the second people's hospital of Shanxi province from December 2011 to June 2019 were followed up for 12-36 months, and 83 stable kidney transplant recipients who continued to take immediate-release Tac were selected as control group.The changes of kidney function indexes, Tac trough concentration intra-patient variability (IPV) and compliance, the incidence of rejection and the survival rate of grafts and recipients were observed after the conversion from immediate-release Tac to extended-release Tac in stable kidney transplant recipients.Results:The conversion time from immediate-release Tac to extended-release Tac was (42.76±30.50)months after transplantation. At 24 months after conversion, the serum creatinine (SCr) was significantly lower than that before conversion ( P=0.013), and the estimated glomerular filtration rate(eGFR)was significantly higher than that before conversion( P=0.005). In the experimental group , the SCr was significantly lower than that of the control group at 36 months after conversion ( P= 0.017), eGFR was significantly higher than that of the control group ( P=0.038). In the experimental group, the score of Immunosuppressant Therapy Barrier Scale (ITBS) was (20.23±2.89) before conversion and (17.63 ±3.08) after conversion ( P= 0.000). The daily dose of Tac was (2.09 ±0.84) mg before conversion and (2.10 ±0.83) mg after conversion. The trough concentration of Tac before conversion was (7.22 ±2.84) ng/mL, which reduced significantly after conversion. No rejection occurred after conversion, and the recipients/grafts survived healthily during the follow-up period. Conclusions:After conversion from immediate-release Tac to extended-release Tac in stable kidney transplant recipients, the kidney function is stable and better than that of before conversion, the compliance is significantly improved, the IPV of Tac trough concentration is significantly reduced, and long-term use of extended-release Tac has good clinical efficacy and safety.

The noninvasive measurement of liver stiffness (LS) was evaluated by transient elastography (FibroScan) and the possible influencing factors from the patients' clinical situations including age, gender, liver inflammation represented by alanine transaminase (ALT) and total billirubin (TBIL) level, HBV replication (HBV DNA loads), portal vein pressure (portal vessel diameter, PVD), splenic thickness (SPT) and body mass index (BMI) were analyzed in patients with chronic hepatitis B (CHB). A total of 466 patients including 31 patients with acute-on-chronic liver failure (ACLF), and 435 patients with chronic hepatitis B (CHB) among which 82 patients were diagnosed with liver cirrhosis (LC) by clinical manifestations and liver B-type ultrasonic inspection were enrolled at Tongji Hospital from April to December 2009. LS was measured by a FibroScan device (EchoSens, France). Simultaneously, ALT and TBIL levels, HBV DNA loads, PVD, SPT and BMI in all patients were also tested. Forty-one healthy volunteers served as controls. The values of LS were correlated positively with ages of CHB patients and significantly higher in males than in females. In patients with BMI>28 kg/m(2) (obesity) and abnormal levels of ALT and TBIL, LS values were significantly increased as compared with those having normal levels of ALT and TBIL. The patients with ACLF had the highest LS value. Furthermore, LS values in the patients with LC were significantly higher than those in patients without LC. It is concluded that noninvasive measurement of liver fibrosis by FibroScan provides an alternative method to evaluate liver fibrosis of patients with CHB. In order to properly illustrate the stiffness value taken by transient elastography, patients' gender should be taken into consideration and it is also suggested to avoid possible influencing factors including liver inflammation (high levels of ALT and TBIL) and obesity (high BMI).

Animals ; Chromatography, Supercritical Fluid ; methods ; Drug Monitoring ; methods ; Environmental Pollutants ; analysis ; Forensic Medicine ; methods ; Humans ; Substance-Related Disorders ; diagnosis

The potential biodegradation of crude oil was assessed based on the development of a fermentative process with a strain of Pseudomonas aeruginosa which produced 15.4 g/L rhamnolipids when cultured in a basal mineral medium using glycerol as a sole carbon source. However, neither cell growth nor rhamnolipid production was observed in the comparative culture system using crude oil as the sole carbon source instead. As rhamnolipid, an effective biosurfactant, has been reported to stimulate the biodegradation of hydrocarbons, 1 g/L glycerol or 0.22 g/L rhamnolipid was initially added into the medium to facilitate the biodegradation of crude oil. In both situations, more than 58% of crude oil was degraded and further converted into accumulated cell biomass and rhamnolipids. These results suggest that Pseudomonas aeruginosa could degrade most of crude oil with direct or indirect addition of rhamnolipid. And this conclusion was further supported by another adsorption experiment, where the adsorption capacity of crude oil by killed cell biomass was negligible in comparison with the biologic activities of live cell biomass.
Biodegradation, Environmental ; Cell Culture Techniques ; methods ; Cell Proliferation ; drug effects ; Glycolipids ; pharmacology ; Petroleum ; metabolism ; microbiology ; Pseudomonas aeruginosa ; drug effects ; growth & development ; metabolism ; Water Pollutants, Chemical ; metabolism ; Water Purification ; methods

OBJECTIVETo explore the clinical effects of Dynesys system for the treatment of multiple segment lumbar degenerative disease.

METHODSA total of 28 patients with lumbar degenerative disc disease treated with Dynesys system from December 2008 to May 2011 were retrospectively reviewed. There were 16 males and 12 females, aged from 27 to 75 years old with an average of 49.1 years. Thirteen patients with multiple segmental lumbar intervertebral disc protrusion, including L3-L5 in 7 cases, L2-L4 in 1 case and L4-S1 in 5 cases. Fifteen patients with multiple segmental lumbar spinal stenosis, including L3-L5 in 10 cases, L4-L5 in 4 cases and L2-S1 in 1 case. The symptoms of lumbago and (or) intermittent claudication in all patients were treated with conservative treatments for more than 6 months and these methods did not work. Visual analogue scale (VAS) was used to analyze the lumbar and leg pain, imaging data were used to measure the intervertebral space height and intervertebral motion of fixed segment and upper adjacent segment, Oswestry Disability Index (ODI) was used to evaluate the clinical effect.

RESULTSAll operations were successful and the patients were followed up from 38 to 65 months with an average 50.6 months. At final follow-up, ODI and VAS of the low back pain and leg pain were (25.10±6.52)%, (1.25±0.70) points and (1.29±0.89) points, respectively and were decreased compared with preoperative (P<0.05). Postoperative intervertebral space heights were increased and intervertebral motions were decreased in fixed segment compared with preoperative (P<0.05). There were no significant differences in intervertebral space heights and intervertebral motions of upper adjacent segment between preoperative and postoperative (P>0.05).

CONCLUSIONDynesys system may obtain long-term clinical curative effect in treating multiple lumbar degenerative disease. It can partially preserve the intervertebral motions of the fixed segments, have little effect on adjacent segments. The long-term clinical effect of Dynesys still need longer time follow-up observation.

Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Degeneration ; pathology ; surgery ; Joint Instability ; Lumbar Vertebrae ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Visual Analog Scale

ObjectiveTo recognize the normal CT appearances of adult pterygoid hamulus and increase the ability to recognize pterygoid hamulus abnormalities.Methods The pterygoid hamulus of 108 normal adults ( male:53 cases,female,55 cases) were studied with MIP and VR reconstructive images by 64-slice spiral CT in order to observe its normal shape,to measure its length,diameter,vertical height,horizontal width,abduct angle in coronal position and post-abducent angle in anteroposterior position.The differences between genders,two sides and age groups were compared,respectively.ResultsThe normal pterygoid hamulus had a wide basal body and a pillar caudomedial part with round or intumescentia extreme.In coronal position,the distal end towards outer direction in 214 sides and 2 sides in inner direction. In anteroposterior position,the distal end towards posterior direction in 190 sides and anterior direction in 26 sides.The pterygoid hamulus length,vertical height,and horizontal width of adult males were (8.18 ± 0.94) mm,(7.23 ±0.92) mm,(4.27 ±0.81 ) mm,respectively.They were larger than the adult females (7.31 ± 1.01) mm,(6.26 ±0.90) mm,(3.97 ±0.82) mm,and the difference was statistically significant (t values were 6.56,7.86,2.72 respectively,P ＜ 0.05).The pterygoid hamulus vertical height of age group over 60 years old (7.13 ± 1.35) mm exceeded the age groups of 18-39 (6.55 ±0.86) mm.The difference was statistically significant ( F =4.95,P ＜ 0.05 ).Conclusions64-slice spiral CT could display the shape,length and angle of pterygoid hamulus in full. It could help to recognize correlated pterygoid hamulus diseases.

Objective To investigate the association between high-risk types of human papillomavirus (HR-HPV) load and the expression of nestin in different cervical lesions.Methods The hybridization capture Ⅱ (HC-Ⅱ) assay was used to test the HR-HPV load from 60 patients who were the first time to do the cervical cancer screening in Xiangya Hospital,and immunohistochemistry was used to detect the expression of nestin in those biopsy tissue samples.Results (1) The lgHPV level (logarithm of HR-HPV load) in the high level lesion group was higher than the low level one (P ＜0.05),and HR-HPV load was positively associated with the degree of cervical lesions (rs =0.269,P =0.037).(2) The expression of nestin in A group was weaker than groups B and C (H =7.271,22.843,P ＜0.01),and the expression of nestin in C group was stronger than B group (H =7.270,P ＜0.01),and the expression of nestin was positively associated with the degree of cervical lesion (rs =0.646,P =0.000).(3) The HR-HPV load was positively associated with the expression of nestin (P ＜ 0.05).Conclusions The HR-HPV load and the expression of nestin are closely related to the cervical lesions,and the joint detection has a referential value for early prevention of cervical lesions and prediction of progress of cervical precancerous lesion.It might guide the early prevention and treatment of cervical cancers.

Objective To explore the clinical application and curative effect of iron removal treatment with week-therapy in chronic iron overload related to blood transfusion.Methods Twenty patients who were diagnosed as chronic iron overload were retrospectively studied.The amelioration of liver and pancreatic fanctions in patients with chronic iron overload treated with week-therapy of iron chelating agent through intravenous drip.Results The changes in the level of serum ferritin [2693.7±709.9) μg/L] were not significant after treatment at six months,hut the cilinical symptoms were relieved obviously.The levels of serum ferritin in patients after the treatment at twelve months were significantly different from the level before treated [(2083.7±714.4) μg/L vs (2771.5±725.2) μg/L,t =3.35,P ＜ 0.01],and the decreases were significant in sixteen patients.The liver functions in seven patients were improved and pancreatic functions were better in five patients.Conclusion The study suggests that iron removal treatment with week-therapy is effective for chronic iron overload,and improves the functions of damaged organs.