1.Visual quality observation after implantation of TICL for high myopia with astigmatism
Yan WU ; Tao LUO ; Wei JIANG ; Hengdi ZHANG ; Yajing ZHAO
Journal of Regional Anatomy and Operative Surgery 2014;(3):234-237
Objective To assess the clinical outcomes about the visual qulitity of toric implantable contact lens ( TICL) implantation for high myopia with astigmatism. Methods Fifty-two eyes of 27 patients that underwent TICL implantation were examined. Uncorrected visual acuity( UCVA) ,best corrected visual acuity( BCVA) ,refraction,contrast sensitivity ( CS) with and without glare were evaluated before and after the treatment. Results Significant improvement in UCVA and BCVA were found at 1 month and 6 months after treatment (P<0. 05). The refraction at 1 month ( -0. 56 ± 0. 42)D and 6 months ( -0. 58 ± 0. 22)D after treatment were of no significant difference (P>0. 05), and the astigmatism at 1 month ( -0. 35 ± 0. 60)D and 6 months ( -0. 31 ± 0. 42)D after treatment were of no significant difference either (P>0. 05). The CS with and without glare were all significantly better than results before operation for 6. 0,12. 0 and 18. 0 cycles/degree (P<0. 05),but there were no significant difference between 1 month and 6 months after treatment (P>0. 05). No significant difference were found preoperatively,1 month after treatment and 6 months after treatment in terms of CS with and without glare (P>0. 05). The satisfaction of this investigation was 100%. Conclusion The TICL performed well in correcting high myopia with astigmatism,and it is a good surgical option for the treatment.
2.Research advances in radiation?induced heart disease
Liming XU ; Xi CHEN ; Yajing YUAN ; Lujun ZHAO
Chinese Journal of Radiation Oncology 2017;26(3):358-363
Radiation?induced heart disease ( RIHD) is a common type of radiation?induced damages in chest radiotherapy. There are no obvious short?term symptoms in patients with RIHD. However, RIHD causes irreversible permanent damages to the heart over time, which undermines the quality of life. Patients with severe RIHD even have a risk of death from myocardial infarction caused by coronary atherosclerosis. This paper summarizes the research advances in epidemiology, diagnosis, mechanisms of radiation?induced injury in various parts of the heart, radiotherapy techniques, and treatment. Reduction in radiation range and dose, early diagnosis, and early treatment are recommended for patients to reduce heart injury and improve the quality of life.
3.THE ANTI-FATIGUE EFFECT OF BLACK CURRANT EXTRACTS IN MICE
Li LI ; Xiaoguo ZHAO ; Long MA ; Yajing GU ; Xudong MA
Acta Nutrimenta Sinica 2004;0(05):-
Objective To study the anti-fatigue function of black currant extracts in mice. Method Kunming mice (SPF) were randomly divided into black currant extracts high, middle, low dose group, black currant natural juice dose group and control group according to their body weights. Mice were administered ig daily for 30 d. The loaded-swimming time ,hepatic glycogen ,blood urea nitrogen were measured. Results Black currant extracts high, middle, low dose groups could increase the time of loading swimming,and the hepatic glycogen content,and decrease blood urea nitrogen in mice. All indices above were more than those in black currant natural juice except the blood urea nitrogen content was lower. Conclusion Black currant extracts could alleviate physical fatigue in mice, and be better than black currant natural juice.
4.Extraction Process Optimization of Gastrodine in Tianma Gouteng Decoctions
Tiefeng WANG ; Yajing LI ; Mengjiao DENG ; Zhaohuan LOU ; Junyan ZHAO
China Pharmacist 2015;(3):384-386
Objective:To establish an optimal extraction technology for gastrodine in Tianma Gouteng decoctions. Methods: An orthogonal design with extract yield and gastrodine concentration as the indices was carried out to observe the influence of the extraction time, water amount and extract times on the extraction result. Results:The extract times showed significant influence on the extraction percentage of gastrodine. The best extraction parameters were as follows:adding 12-fold water and decocting 3 times with 1. 5h for each time. Conclusion:The established extraction process is feasible, which can be used in the preparation of the effective part for Tianma Gouteng decoctions with gastrodine concentration as the index.
5.Progress of laboratory diagnostic methods of Clostridium difficile infection
Jing YANG ; Yajing LI ; Hainan WEN ; Jianhong ZHAO
Chinese Journal of Laboratory Medicine 2012;35(8):692-696
Clostridium difficile is a gram-positive,anaerobic spore-forming bacillus commonly found in the environment and human gut.Excessive use of antibiotics,immunosuppressive agents and chemotherapy drugs may lead to overgrowth of the toxic strain of Clostridium difficile with high resistance,which are supposed to be the major contributing factors leading to Clostridium difficile associated diarrhea(CDAD).The globally increasing incidence of CDAD,especially the outbreak of nosocomial infection caused by the hypervirulent strain in North America,arouse worldwide attention.For providing new ideas to the early diagnosis and treatment of CDAD,this review summarize the latest development on pathogenesis and rapid laboratory diagnosis of Clostridium difficile.
6.Thyroid-stimulating hormone inhibits glucose transporter4 translocation through an extra-thyroidal pathway in 3T3-L1 adipocytes
Yajing ZHANG ; Wei ZHAO ; Hong ZHANG ; Xiaoming WU ; Jia LIU
Chinese Journal of Geriatrics 2013;(2):219-223
Objective To test thyroid-stimulating hormone (TSH) suppress GLUT4 expression and translocation by stimulating TNF-α secretion in 3T3-L1 adipocytes via a cAMP-PKA pathway.Methods 3T3-L1 preadipocytes were induced to differentiate into adipocytes.The adipocytes were treated with bovine TSH,Forskolin,H89 and Rapamycin,respectively.The concentration of TNF-α in the cell culture medium was measured by ELISA.The level of GLUT4 mRNA in adipocytes was assessed by real time polymerase chain reaction.Protein levels of GLUT4 in total cell lysates and plasma membrane lysates were quantified by Western blotting.Results Incubating 3T3-L1 adipocytes with TSH markedly increased the concentration of TNF-α in medium in a time-and dosedependent manner (P < 0.05); meanwhile,the levels of GLUT4 mRNA and total and plasma membrane GLUT4 protein were decreased in a dose-dependent manner (P<0.05 or <0.01).H89 and rapamycin could block the above effects respectively (326.7±43.2 vs.341.9±12.0,P>0.05).However,there was no statistical difference in the TNF-α levels between stimulation with 1 μmmol/L forskolin versus 0.04 μmmol/L bovine TSH (481.9± 28.4 vs.522.7± 36.2,P>0.05).Conclusions TSH can down-regulate GLUT4 expression and translocation in 3T3-L1 adipocytes by stimulating TNF-α secretion through a cAMP-PKA pathway.
7.Clinical exploration of discriminant model of progressive ischemic stroke
Dali WANG ; Yulan ZHOU ; Xiaojing ZHAO ; Yajing WANG ; Sujun WANG
Clinical Medicine of China 2008;24(5):467-469
Objective To explore the related risk factors of stroke in progression(SIP)and establish discriminant models to predict the incidence.Methods 31 possible related factors were compared between progressive group(n=110)and non-progressive group(n=336),and the related factors were analyzed in discriminant models.Results Discriminant models were established by 16 factors,including arterial stenosis,OCSP subtype,blood glucose,low density lipoprotion,creatinine,the sign of early cerebral infarction on CT,the temperature increasing and the rapidly decreasing of blood pressure in 48 hours after admittion.The evaluation to the models by interview data and prospective data showed a satisfied result.Conclusion Arterial stenosis,OCSP subtype and other significant factors selected by model will be helpful in prediction of SIP.
8.Analysis of age-related changes and risk factors of renal tubular function in elderly male cases
Yanjing ZHANG ; Yajing SHANG ; Ban ZHAO ; Yonghui MAO
Chinese Journal of Geriatrics 2012;31(11):1006-1009
Objective To summarize the age-related changes and the risk factors of renal tubular function in the elderly male cases.Methods Totally 229 cases without chronic kidney disease were divided into two groups:group aged <80 years and group aged ≥80 years.We measured the urine routine,serum creatine,serum urea,urine β2-microglobin (β2-MG),urine α1-microglobin (α1-MG)and calculated the eGFR based on Cockcroft-Gault equation.Logistic regression was used to analyze the risk factors which may accelerate the progression of the renal tubular impairment.Results The average age of 229 cases was (76±10)years.There were 142 cases in the group of <80 years old and 87 cases in the group of ≥80 years old.The level of eGFR in the group of ≥80 years old was (55.0±12.7) ml/min,which was lower than that of the group of < 80 years old (80.3 ± 18.0 ml/min) (t =9.882,P<0.01).The level of urine SG was decreased in the group of ≥80 years old versus in the group of <80 years old(1.016±0.006 vs.1.013±0.006).The value changes of urine pH,urine β2-MG and urine α1-MG were of statistical differences between the two groups [(6.2±0.8) vs.(6.6±0.8),(0.96±1.02)mg/L vs.(2.08 ±3.56)mg/L,(6.67±3.57) mg/L vs.(8.71±6.59)mg/L].The correlation analysis showed that age correlated negatively with eGFR and urine SG(r =-0.692and r=-0.280,both P<0.01)and positively with urine pH(r=0.255),urine β2 MG(r=0.262),urine α1-MG(r=0.228)(all P<0.01).The Logistic regression analysis showed that coronary heart disease was an independent risk factor for the progression of renal tubular impairment (OR=4.251,P=0.002).Conclusions Renal tubular functions is decreased with ageing age in the elderly male,especially in the advanced elderly.The coronary heart disease is an independent risk factor of the progression of renal tubular impairment.
9.Thyroid-stimulating hormone decreases insulin receptor substrate 1 expression via stimulating TNF-αsecretion in 3T3-L1 adipocytes
Yajing ZHANG ; Ling FENG ; Wei ZHAO ; Shasha TANG ; Hong ZHANG
Chinese Journal of Endocrinology and Metabolism 2014;30(1):65-68
3T3-L1 adipocytes transfected with TSH receptor (TSHR) shRNA were incubated with bovine TSH.The concentration of tumor necrosis factor (TNF)-α in culture medium was measured by enzyme linked immunosorbent asssy.Protein level of insulin receptor substrate 1 (IRS-1) was quantified by Western blotting.Tyrosine phosphorylation of IRS-1 was measured by immunoprecipitation.The results showed that 1 mIU/ml TSH significantly sitmulated TNF-α release in 3T3-L1 adipocytes [(341.85 ± 12.00 vs 522.67 ± 36.22) ng/L,P<0.01],along with the decreases in IRS-1 protein expression and its tyrosine phosphorylation (P< 0.01).These effects disappeared when TSHR expression was down-regulated with RNA interference in 3T3-L1 adipocytes.In addition,WP9QY,a TNF-α antagonist,blocked TSH-decreased IRS-1 expresssion.These results suggest that TSH downregulates IRS-1 protein expression and its tyrosine phosphorylation through stimulating production of TNF-α,and thus contributes to the development of insulin resistance.
10.A Non-Enzymatic Glucose Sensor Based on Polydopamine/Cu Microparticles Self-assembled Multilayer Films
Mingrong LUO ; Liangliang WANG ; Yajing ZHANG ; Shuang ZHAO
Chinese Journal of Analytical Chemistry 2016;44(6):882-887
A highly stable multilayer film modified glassy carbon electrode (GCE) containing polydopamine (PDA) and Cu microparticles was fabricated by layer-by-layer self-assembly technique. The fabrication process was based on the self-polymerization of dopamine and electroless deposition of Cu microparticles on PDA coating. The fabrication process of multilayer films was characterized by UV-Vis spectra. The electrochemical performance of GCE / (PDA/ Cu) n modified electrode for glucose detection was investigated by cyclic voltammetry and amperometric current-time curve under alkaline conditions. At detection potential of 0. 35 V, the GCE / ( PDA/ Cu) 4 modified electrode presented a linear range of 0. 5 - 9. 0 mmol/ L with a detection limit of 5. 8 μmol/ L (S / N=3). Moreover, the sensitivity of the modified electrode was tunable by controlling the number of bilayers of the multilayer films. The modified electrode showed highly selective, stable and fast amperometric sensing of glucose. It was applied to determine glucose in human blood serum with satisfactory results.