Objective To explore the mechanism of combined treatment with methotrexate (MTX) and Ga-Al-As laser irradiation for rheumatoid arthritis (RA) and to assess the effectiveness of Ga-Al-As laser therapy for RA. Methods Twenty-two patients with RA were randomly and evenly divided into two groups: the treatment group treated with Ga-Al-As laser irradiation combined with MTX and the control group treated with MTX only. Ten age-matched normal subjects were observed as normal controls. The amount of CD4 + CD25 + regulatory T cells in peripheral blood (PB) of the normal controls and that in the PB and synovial fluid (SF) of the 22 patients before and after therapy were counted by flow cytometry. Meanwhile, the amount of prostaglandin E2 (PGE2) in synovial fluid of the patients was measured before and after treatment by enzyme-linked immunosorbent assay(ELISA). Results After combined treatment the clinical symptoms of the patients were improved significantly, and the amount of PGE2in SF decreased significantly. The count of CD4 + CD25 + regulatory T cells in PB of RA patients was ( 3.84 ±3.20) % , compared to ( 10.05 ± 7.04) % in healthy individuals. The count of CD4 + CD25 + regulatory T cells in SF of RA patients was ( 14.89 ± 12.30) % , much higher than that in PB. The count of CD4 + CD25 + regulatory T cells in SF decreased significantly in treatment group compared to control group (P ＜0.05). Conclusion Ga-Al-As laser irradiation eombined with MTX can effectively improve the clinical symptoms of RA patients. It may be related to the decrease of amount of PGE2 and count of CD4 + CD25 + regulatory T cell in PB and SF.

Objective To investigate the effect of Propess on cervical collagen remodeling and cervical ripening in full-term pregnancy.Methods 94 cases of mid-term pregnant women enrolled in obstetrics and gynecology of our department from January 2016 to January 2017 were divided into two groupaccording to the random number table method.47 cases of the control group, taking oxytocin intravenous infusion;observation group of 47 cases, taking propess suppository vaginal medication.Labor time, medication to labor time, cervical Bishop score, mode of delivery, postpartum hemorrhage and neonatal situation of two groups were compared.Results Compared with the control group, the Bishop score of the cervix was increased, the total effective rate of cervical ripening was improved, the labor was shortened, the time of medication was shortened, and the delivery rate of vaginal delivery was improved(P<0.05), while the two groups were bleeding, neonatal Apgar score and the incidence of fetal distress were not statistically significant.Conclusion It can promote cervical collagen remodeling, promote cervical ripening, thereby reducing the rate of cesarean sectionwith taking propess in the vaginal.

25 year).The patients were analyzed for the clinical characteristics.Autoantibodies to glutamic acid decarboxylase 65(GAD65-Ab),insulin(I-Ab)and autoantobodies to protein tyrosine phosphatase-like proteins(IA2-Ab)were assayed.HLA-DRB1,DQA1,DQB1 alleles(HLA-DRB1*03,*04,*09,*15,DQB1*0201,*0302,*0601,DQA1*0301,*0501)were typing by PCR-sequence specific primer(PCR-SSP).Results A little higher proportion of males,a longer duration of disease; a higher BMI and WHR characterized the adult-onset patients.The adults have a higher level of triglycerides and 120 min C-peptides than adolescent.The frequency and level of IA2-Ab of the adolescents were higher than adults(47.1% vs 15.1% and 0.46 U?mL~ -1 vs 0.07 U?mL~ -1 ,respectively,P

Objective To observe the effect of ritodrine hydrochloride on peripheral blood and tocolysis rate of patients with threatened premature labor.Methods89 cases of patients with threatened premature labor were selected from October 2015 to September 2016 and randomly divided into two groups, research group with 45 cases treated with ritodrine hydrochloride and control group with 44 cases treated with epsom salt.The peripheral blood, extinction time of uterine contraction, extended days of pregnancy, postpartum hemorrhage, neonatal birth weight and tocolysis rate were compared between two groups.ResultsAfter treatment, CRH, NO, PGE2 and IL-8 of control group were obviously higher than research group, the difference was statistically significant (t=10.826,3.839,7.534,8.075,P<0.05).The extinction time of uterine contraction in control group was obviously longer than research group, while extended days of pregnancy and neonatal birth days in research group were obviously longer than control group, the difference was statistically significant (t=4.566,7.855,3.237,P<0.05).There was no significant difference in postpartum hemorrhage between two groups (t=0.889,P>0.05).The overall efficacy of tocolysis in control group was 70.5%, while that in research group was 86.7%, which was obviously higher than the control group, the difference was statistically significant (χ2=7.801,P<0.05).ConclusionRitodrine hydrochloride can effectively control uterine contraction factor in peripheral blood and extend gestational days of patients with threatened premature labor, so as to improve tocolysis rate and birth quality.

Objective: To construct a prediction model for sleep disorders in shift workers of a chemical fiber enterprise, so as to provide the basis for early identification and prevention of sleep disorders in shift workers. Methods: Shift workers were sampled from a chemical fiber enterprise in Tongxiang City, Zhejiang Province using a cluster sampling method from August 2022 to July 2024. Demographic information, length of service and average weekly working hours were collected through questionnaire surveys. Depressive symptoms, anxiety symptoms and sleep disorders were evaluated using the Pittsburgh Sleep Quality Index, Patient Health Questionnaire and Generalized Anxiety Disorder Questionnaire, respectively. The shift workers were randomly divided into a training set and a validation set at a ratio of 7∶3. Predictive factors were selected using a multivariable logistic regression model based on the training set, and a nomograph model for prediction of sleep disorders in shift workers was established. The predictive values of the model were evaluated using the receiver operating characteristic (ROC) curve and calibration curve based on the training set and validation set. Results: Totally 673 shift workers were included, with a median age of 32 (interquartile range, 12) years. There were 493 males, accounting for 73.25%. There were 471 (69.99%) workers in the training set and 202 (30.01%) workers in the validation set. There were 274 workers with sleep disorders, accounting for 40.71%. The equation for the prediction model was ln[p/(1-p)]=-8.391+1.906×average weekly working hours+1.822×depressive symptoms+1.667×anxiety symptoms. The area under the ROC curve was 0.769 (95%CI: 0.661-0.835) for the training set and 0.655 (95%CI: 0.593-0.737) for the validation set, and Hosmer-Lemeshow test showed a good fitting effect (both P>0.05). Conclusion The nomograph model constructed by average weekly working hours, depressive symptoms and anxiety symptoms can be used to predict the risk of sleep disorders in shift workers of a chemical fiber enterprise.

A method of derivatization at injection port following three phase hollow fiber microextraction with tetramethylammonium hydroxide (TMAH) as a dual-function reagent, for the simultaneous determination of salicylic acid, p-hydroxybenzoic acid, cinnamic acid, vanillic acid, p-coumaric acid and ferulic acid in beers by gas chromatography was developed. Phenolic acids were extracted from aqueous samples to a thin layer of organic solvent ( hexyl acetate) phase impregnated into the pores of the hollow fiber wall, and then back extracted to an acceptor solution (TMAH) located inside the lumen of the hollow fiber. Upon injection, the phenolic acids were derivatized to their methyl esters in the GC injection port. Several parameters related to the derivatization and extraction efficiency were optimized. The optimized conditions were as follows: hexyl acetate was used as the extraction solvent, an aqueous solution of TMAH (5% W/ V) was used as the derivatization reagent and acceptor phase, the pH value of donor phase was 2. 0, the concentrations of NaCl was 25% W/ V, the stirring rate was 500 r/ min, the extraction time was 40 min. Under the optimal conditions, the linear range of phenolic acids was 0. 50 -15. 00 mg / L, the limits of detection were 0. 05 -0. 18 mg / L. The proposed method was applied to the determination of the phenolic acids in beers. Vanillic acid, p-coumaric acid and ferulic acid were found in the beer samples, others were not detected. The spiked average recoveries were 90. 1% -106. 8% and RSD% was less than 5. 9% (n =3). The method is suitable for the determination of phenolic acids in beers.

BACKGROUND: There are some reports about the relationship between atherosclerotic cerebral infarction and apolipoprotein E and B, but the results are still controversial. The relationship between apolipoprotein E and B and young adult atherosclerotic cerebral infarction has not been reported yet in China.OBJECTIVE: To investigate the relationship between the polymorphism of apolipoprotein E and B gene and young adults atherosclerotic cerebral infarction (ACI).DESIGN: A controlled case analysis of young adult atherosclerotic cerebral infarction patients.SETTING: Department of Neurology, Shengjing Hospital of Chinese Medical University.PARTICIPANTS: This study was conducted in the Department of Neurology, Shengjing Hospital of Chinese Medical University from January of 1998 to December of 2000. Thirty-six young adult patients with atherosclerotic cerebral infarction, including 30 males and 6 females, with the meaage of (41.6±6.54) years, and 100 healthy young adults, including 66 males and 34 females, with the mea age of (36.16±6.12) years were included in this study.METHODS: 8 Ml venous blood was collected after fasting for 12 hours to assay serum lipid and apolipoprotein. The gene polymorphism of apolipoprotein E and B were detected with PCR method. Enzymic method was used to detect total cholesterol, total triglycerides and high density lipoprotein-cholesterol (HDL-C). Apolipoprotein AI.B was measured with immunoturbidimetry method and lipoprotein (a) with ELISA method.Lipids, lipoprotein and apolipoprotein of six control blood samples couldn't be measured because of hematolysis.MAIN OUTCOME MEASURES: ① The distribution characteristics of genotypic frequency of apolipoprtein E and B in the two groups. ② The relationship between gene polymorphism of aoplipoprotein E and B and the level of blood lipids, lipoprotein and apolipoprotein. ③ The correlation intensity between genotypes of apolipoprotein E and B and onset of young adult atherosclerotic infarction.RESULTS: ① In ACI group, ε3/4 counted for 36.1% and ε2/4 for 27.7%, but was 12% and 7% in control group respectively. The gene frequency of ε4 was 0.320. All these values were higher than that in control group 0.95 (P ＜ 0.05). ② The levels of TG, TC, and LP (a) in ACI group were higher than that in control group. The level of HDL-C was much lower than the control group's (P ＜ 0.05-0.01). ③ ε4 allele caused the increase of the content of TG, TC, and LP (a) so as to induce the relative risk rates of decrease of HDL-C which were 8.23, 4.85, 29.9,4.39 (P ＜ 0.01-0.001) respectively. ④ AI content of the gene frequency of ApoB XbaⅠ X+X- was (1.01±0.30) g/L in ACI group, which was lower than (1.33±0.15) g/L in X-X- subgroup (t=2.55, P ＜ 0.05). The level of ApoA I in X+X group (244.3 mg/L) was remarkably different from that (183.0 mg/L)in control group (t=4.50, P ＜ 0.01). ⑤ Three cases had both ε3 and X+X-in ACI group, 10 had both ε3 and X-X-, 2 had both ε4 and X+X-, and 19 had both ε4 and X-X-. The risk of ACI was 2.85 with the linkage of allele ε4 and allele X-X- in ACI patients (x2=1.52, P ＞ 0.05).CONCLUSION: Allele ε4 is a genetic facilitated factor of young adults ACI. Xba Ⅰ X+X- is another probable genetic symbol. The correlation between atherosclerotic cerebral infarction of young patients during the combination of apolipoprotein E and B should be researched further.

Objective To evaluate peak rotation in the endocardium(endo)and epicardium(epi)and peak mural torsion in patients with anterior wall acute myocardial infarction(AMI)before and after revascularization by speckle tracking imaging(STI).Methods The study comprised 20 normal controls and 21 consecutive xpatients with a first-episode anterior wall AMI with stenosis of the left anterior descending artery.All patients underwent Successful percutaneous coronary intervention within 12h onset of AMI.During one month, two patients were ruled OUt because one died of heart failure and the other suffered from persistent atrial fibrillation.Conventional echocardiography and STI were performed in normal controls and AMI patients before and one month after revascularization.Results In the left ventricle(LV)apical and basal level,peak endo-and epi-rotation and peak mural torsion in AMI patients were significantly reduced relative to those of normal control group(all P<0.01).One month after revascularization,there were significant changes in these three variables,especially in peak endorotation(P<0.01).Peak apical endo-rotation positively correlated with LV ejection fraction(LVEF)(r=0.717,P<0.01)and inversely correlated with LV end-diastolic volume(EDV)(r=-0.694,P<0.05).However,tight relations were not found among other variables at the two planes.Conclusions Peak endo-and epi-rotation and peak mural torsion can make the sensitive assessment of abnormal myocardial contractile performancein AMI patients using STI.

Objective To investigate the value of real-time three-dimensional echocardiography timing-excursion parametric index and 17 segment volume curves index in patients with restrictive cardiomyopathy.Methods Eight patients with restrictive cardiomyopathy (proven by biopsy),twenty eight subjects with normal left ventricular(LV) function were examined by Philips iE33 with X3-1 probe.Results Parameter index of the SD and maximum difference of Tmsv of 16 segments,12 segments,and 6 basal segments(Tmax 16SD,Tmsv-12SD Tmsv -6SD,Tmsv-16Dif,Tmsv-12 Dif,Tmsv-6Dif,Tmsv 16-SD%,Tmsv 12-SD%,Tmsv 6-SD%,Tmsv 16-Dif%,Tmsv 12-Dif%,Tmsv 6-Dif%) was significantly higher in patients with restrictive cardiomyopathy than that in subjects with normal LV function(all P＜0.001).Average and maximum value and minimum of excursion was significantly lower in patients with restrictive cardiomyopathy than that in subjects with normal LV function(P＜0.001,P＜0.005,P＜0.005).And parameter index of 17 segment volume curves index showed higher sensitivity,specificity,positive predictive value and negative predictive value for diagnose restrictive cardiomyopathy.Conclusions Real-time threedimensional echocardiography can evaluate and diagnose restrictive cardiomyopathy fastly.

Objective To investigate the role of interleukin-18(IL-18) and interleukin-15(IL-15) in the mechanism of acute pancreatitis.Methods The serum levels of IL-18 and IL-15 were detected by enzyme-linked immunosorbent assay(ELISA) in SAP group(n=7) and MAP group(n=19).The relationship between IL-18 and IL-15 were analyzed.Results SAP group was compared with the MAP group:IL-18 (78.32?15.45)ng/L vs (28.21?13.18)ng/L,P