1.Effect of sodium selenite on Treg cells in peripheral blood mononuclear cells in patients with Graves disease
Chinese Journal of Immunology 2015;(6):814-817
Objective:Recently,selenium was used for the treatment of Graves disease. However,there has been no reports that selenium affected the immune function of Graves disease at the cellular level so far. It is reported the effect of sodium selenite on Treg cells in peripheral blood mononuclear cells in patients with Graves disease in the present study. Methods:AFS were used to detect the level of serum selenium;PBMC( Peripheral blood mononuclear cells) were extracted,then,cultured with sodium selenite. Foxp3 mRNA expression was tested by Real-time fluorescence PCR,and ELISA was used to detect the secretion of IL-35. Results:The serum sodium selenite levels of GD group are significantly lower than the HC group;The expression of Foxp3 mRNA and secretion of IL-35 are both increased. Conclusion:It shows sodium selenite could improve the state of immune disorders by recovering the function of Treg cells.
2.Research advance of immune nutrients in cancer therapy
Parenteral & Enteral Nutrition 1997;0(03):-
The immune nutrients play an important role in nutritional support,immune regulation and maintenance of intestinal barrier function.In recent years,with the deepening study,the effect of immune nutrients in the comprehensive cancer treatment has constantly being recognized.Many studies have shown that glutamine (Gln),arginine (Arg) and polyunsaturated fatty acids (PUFA) have effect on the tumor itself and the combination cancer chemotherapy.
3.Value assignment study on bioactivity of monoclonal antibody working reference standard
Chuan-fei YU ; Chun-yu LIU ; Lan WANG
Acta Pharmaceutica Sinica 2021;56(2):565-569
The bioactivity of a working reference standard was determined by replicate bioassays with calibration against a primary reference standard. In this study the number of bioassay replicates needed for calibration first was calculated theoretically, and if the mean value of the experimental bioassay replicates fell within the predefined bioactivity level the bioactivity of the working reference was defined as 100%. Our results showed that when the total intermediate precision of the bioassay method was at 11.66% and the predefined bioactivity level was set at 95%-105% with a confidence level of 95%, 21 bioassay replicates should be carried out for calibration. The average value of the 22 experimental bioassay replicates was 101.96%, so the bioactivity of the working reference standard was consistent with that of the primary reference standard at 100%. The results suggest that a strategy of first calculating the number of bioassay replicates needed for calibration and then determining whether the resulting experimental mean value is within the predefined bioactivity level will be of value to the biopharmaceutical industry.
4.Expressions of Transferrin Receptor mRNA,Ferritin Receptor mRNA and Iron Regulatory Protein 1 mRNA in the Placentas Complicated with Fetal Iron Deficiency
chun-yan, LIU ; yu-feng, LIU ; shu-guang, ZHANG
Journal of Applied Clinical Pediatrics 2003;0(10):-
Objective To investigate the expressions of transferrin receptor (TfR) mRNA, ferritin(Fn) mRNA and iron regulatory proteinl (IRP-1) mRNA in the placentas complicated with fetal iron deficiency(ID). Methods Depending on the cord SF,the subjects were divided to fetal ID group and fetal iron sufficient( IS) group. TfR mRNA, Fn mRNA and IRP - 1 mRNA in placentas were measured by RT - PCR. Results 1. The expression of TfR mRNA in ID group was 1.10 ? 0. 26, it was significantly higher than that in IS group (t=0.028 P0.05) ;4. TfR mRNA and Fn mRNA correlated with fetal IS respectively. Conclusion Fetal ID induces highly expressed TfR mRNA and lower level of Fn mRNA to furthest satisfy the iron need for fetus.
5.Study on Bone Metabolism in Children with Leukemia and Its Relationship to Tumor Necrosis Factor-Alpha Pre-and Post-Treatment
hong-chun, LIU ; yu-feng, LIU ; lei, LI ; li, LI
Journal of Applied Clinical Pediatrics 2006;0(15):-
Objective To investigate the bone metabolism of children with leukemia and its relationship to tumor necrosis factor-?(TNF-?)pre-and post-treatment.Methods Serum bone gla protein(BGP),the excretion rate of urianry deoxypyridinoline(DPD)and TNF-? were measured in 35 children with leucocythemia pre-and post-treatment and 30 normal children(control group).Results The results showed that BGP,the excretion rate of DPD and TNF-? in children with leucocythemia before treatment were significantly higher than those in control group.However,the excretion rate of DPD decreased after chemotherapy but still significantly higher than that of control group(P0.05).Conclusions In children with leukemia,there are bone absorption and bone dissolution before chemotherapy,while there is osteogenesis dysfunction and bone absorption after chemotherapy.TNF-? can be used as a parametre for evaluating treatment effect and monitoring relapse.
6.Primary chondroma of ovary: report of a case.
Xiao-mei LIU ; Yu-xin WANG ; Chun-bo NIU
Chinese Journal of Pathology 2011;40(12):845-846
7.Correlation between brachial-ankle pulse wave velocity and carotid artery plaque formation in middle-aged and elderly patients with hypertension
Aoya LIU ; Chun ZHANG ; Yongfang ZHU ; Zhenqiu YU
Chinese Journal of Geriatrics 2016;35(6):577-580
Objective To explore the relationship between brachial ankle pulse wave velocity (BaPWV) change and carotid artery plaque formation in middle-aged and elderly patients with essential hypertension(EH).Methods A cross sectional study was conducted in 409 patients who were admitted in Hypertension Department in our hospital from January to September 2013.Their age ranged from 35 to 75 years,with mean aged(53.2±15.0) years.Parallel carotid artery ultrasound and BaPWV examination were performed in all patients.According to whether carotid plaques were present,patients were divided into two groups:carotid plaque group and control group.And carotid plaque group was sub-grouped into normal BaPWV group (BaPWV < 1400cm/s) and increased BaPWV group(BaPWV≥1400 cm/s) according to BaPWV levels.The detection rate of carotid plaque was compared between normal BaPWV group and increased BaPWV group.The correlation between BaPWV and carotid plaques was analyzed by multivariate logistic regression analysis.Results Compared with the control group,carotid plaque group showed the prevalence of carotid plaques was increased along with the increases of age(t=11.0,P=11.0),systolic blood pressure (t=3.87,P=3.87),diastolic blood pressure(t=3.70,P=0.00),pulse pressure(t=6.13,P 6.13),total cholesterol levels(t=2.57,P=0.01).The detection rate of carotid plaque was higher in increased BaPWV group than in normal BaPWV group [62.6%(159/254) vs.43.2%(67/155),x2=14.61,P=0.00].After adjusting for age,blood pressure and other cardiovascular risk factors,the multivariate logistic regression analysis showed that increased BaPWV was an independent risk factor for carotid plaques(OR=2.06,P=0.05),and age,smoking,systolic pressure,diastolic pressure,pulse pressure,total cholesterol,low-density lipoprotein cholesterol,triglyceride levels were positively correlated with carotid plaques.Conclusions BaPWV is one of the independent impact factors for carotid plaques,which plays an important role in early diagnosis and screening for subclinical vascular lesions.
8.Integrated prenatal diagnosis and postnatal treatment for moderate and severe congenital diaphragmatic hernia
Bo XIA ; Gang YU ; Chun HONG ; Jing TANG ; Cuifen LIU
Chinese Journal of Perinatal Medicine 2015;18(11):843-847
Objective To share our experiences on integrated services in providing fetal diagnosis and postnatal treatment for congenital diaphragmatic hernia(CDH).Methods A retrospective analysis was conducted on 25 pregnancies diagnosed as CDH by both prenatal ultrasound and MRI in Maternal and Children Hospital of Guangdong Province from January 2012 to January 2014.All of the subjects received integral medical management including prenatal management (prenatal diagnosis and consultation), perinatal management (prenatal care and delivery) and neonatal treatment.Results Among the 25 CDH fetuses, 11 were mild, nine were moderate, and five were severe.One severe case, who was diagnosed at 26 gestational weeks, was aborted on demand of the mother.The other 24 cases continued their pregnancy and all delivered after 35 weeks including 13 cesarean sections (one due to twin pregnancy and 12 due to maternal demand) and 11 vaginal birth.The mean gestational age when CDH was diagnosed was (24.5 ± 3.5) weeks, and the 24 women delivered at an average of (37.5 ± 1.4) gestational weeks.The eleven mild cases accepted mask oxygenation.For those 13 moderate or severe CDH cases, all received dexamethasone to promote fetal lung maturity at 32 gestational weeks, seven were intubated before clamp the cord, and the other six did after.These 13 babies accepted high-frequency oscillation ventilation, with a median duration of 58 hours, and some of them treated with inhaled nitric oxide on requirement with a median duration of 52 hours.Except two cases died before operation, the rest 22 cases underwent neonatal surgery.One moderate case died at 48 hours after surgery due to pulmonary hypertension and respiratory failure.Another one severe case withdrew treatment at two months old.The other 20 infants recovered fully.Conclusions Integrated management including prenatal diagnosis and postnatal treatment, provides an effective and streamlined mode for diagnosis and treatment of CDH.Therefore,it might minimize potential medical risks.
10.Analysis of the Application Effects of PDCA Cycle Theory in ADR Monitoring and Management
Lian TANG ; Yanxia YU ; Qin ZHOU ; Chun LIU ; Erning SHANG
China Pharmacy 2015;(28):4027-4029
OBJECTIVE:To explore the effects of PDCA(plan,do,check,action)cycle theory in the ADR monitoring of our hospital. METHODS:The problems of ADR monitoring in our hospital in 2012 were analyzed and intervened by PDCA cycle. The effects of PDCA cycle were evaluated 1 year later. RESULTS:After implementation of PDCA cycle,we had improved the manage-ment system,brought ADR monitoring into the appraisal of clinical pharmacists,established the networking platform of ADR report-ing,strengthened the training of physicians and nurses,the publicty of ADR information and ADR monitoring of important medi-cine. The number of ADR reports increased by 18.37% in 2013,the proportion of new and serious ADR reports obviously in-creased(increasing from 22.28% to 38.42%);in terms of ADR reporting source,the ADR reporting in wards obviously increased (increasing from 8.16% to 43.84%). The proportion of ADR induced by antibiotics or TCM preparation decreased significantly(re-spetively decreasing from 54.52% to 43.84% and 23.03% to 13.30%);in term of ADR clinical manifestations,the proportion of skin and its appendants involved decreased significantly (decreasing from 53.64% to 39.41%). CONCLUSIONS:The application of PDCA cycle obviously improves the management of ADR monitoring in our hospital.