3.Changes of expression of FADD and Daxx following focal cerebral ischemia in rats
Yue-Qiang HU ; Bo XIAO ; Fang-Fang BI ; Ling DING ;
Chinese Journal of Neurology 2005;0(11):-
Objective To investigate the changes of expression of Fas-associated proteins named Fas-associated death domain protein(FADD)and death-associated protein(Daxx)in the ischemic penumbra following transient focal cerebra ischemia in rats.Methods ①Adult male Sprague-Dawley rats were randomly divided into the sham-operated group and the cerebral ischemia model group.Rats underwent right middle cerebral artery occlusion(MCAO)for 2 h and reperfusion for 1,3,6,12 and 24 h using an intraluminal suture technique.The expression of FADD and Daxx mRNA and protein were measured with methods of immunohistochemistry.Western blot and reverse transcription-polymerase chain reaction(RT- PCR)respectively were used in the ischemic penumbra of rats.②Double-label fluorescence confocal laser scanning microscopy(CLSM)was performed to monitor FADD and Daxx intracellular location before and after ischemia.Results RT-PCR,Immunohistochemistry,Western blot experiments indicated that a very low level of FADD mRNA and protein were detected in the cerebral cortex of sham rats.The expression level both of FADD mRNA and protein increased significantly at 3 h after reperfusion,peaked at 12 h,then declined markedly at 24 h in the ischemic penumbra of model rats.RT-PCR,Immunohistochemistry indicated that a relatively high level of Daxx mRNA was detected in the cerebral cotex of sham rats.The expression level of Daxx mRNA increased significantly at 3 h after reperfusion and persisted to 24 h at a high level,whose protein had a same change of expression level in the ischemic penumbra of model rats. Immunofluorescence double-staining laser scanning by CLSM showed that the immunoreactivity of FADD was located in cytoplasm,and the intracellular translocation of the immunoreactivity of Daxx from nucleus to cytoplasm was monitored by measuring the green fluorescence after ischemia.Conclusion The transient upregulation of FADD and the persistant high level of expression of Daxx may contribute to neuronal apoptosis following cerebral ischemia/reperfusion.
5.Progress of autophagy screening systems.
Jing XIE ; Xiao-wei ZHANG ; Fang HUA ; Zhuo-wei HU
Acta Pharmaceutica Sinica 2016;51(1):52-58
Autophagy is an active research area in the biomedical field as its role has been identified in many physiological and pathological processes. Accordingly, there is a growing demand to identify, quantify and manipulate the process accurately. Meanwhile, there is great interest in identifying compounds that modulate autophagy because they may have applications in the treatment of a variety of autophagy-related diseases. In this review, we summarize the current status of autophagy screening systems to facilitate identification of autophagy modulators.
Autophagy
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Humans
6.ADC and FA values in diagnosis of cerebral infarction at acute and earlier chronic stage
Tao HU ; Suiqiao HUANG ; Xiaolin ZHENG ; Xuewen FANG ; Jinglian ZHONG ; Qiong LIU ; Fang XIAO ; Li HUANG
Chinese Journal of Medical Imaging Technology 2010;26(3):435-438
Objective To investigate the variation law of apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values in patients with cerebral infarction, and to explore the relationship between the changes and the prognosis of cerebral infarct patients. Methods Sixteen patients with cerebral infarction were recruited and divided into 2 groups:good recovery and poor rehabilitation. ADC and FA values were calculated in infarct areas and control areas which were the regions with symmetrical position and the same area as infarct areas. The difference of ADC and FA values in patients at acute and earlier chronic stage between the two areas were analyzed. Results ①At acute stage, ADC values in infarct areas were lower than those in control areas (P<0.05). At early chronic stage, there was no significant difference of ADC values between infarct areas and control areas (P>0.05), moreover ADC values were higher than that at acute phase (P<0.05). ②FA values in infarct areas were lower than those in control areas at both acute and early chronic stage (P<0.05). At early chronic stage, FA values were lower than those at acute stage (P<0.05). ③There was no significant difference of ADC and FA values at both acute and early chronic stage between good recovery group compared with poor rehabilitation group (P>0.05). Conclusion There are certainly rules in changes of ADC and FA values in patients with cerebral infarction at acute and earlier chronic stage.
7.Gestational diabetes mellitus does not increase the risk of adverse pregnancy outcomes in twin pregnancies
Huiyun XIAO ; Jia YU ; Yu LIU ; Wanqing XIAO ; Fang HU ; Xi CHENG ; Ping HE ; Xiu QIU
Chinese Journal of Perinatal Medicine 2016;19(5):345-349
Objective To evaluate the influence of gestational diabetes mellitus (GDM) on maternal and perinatal outcomes in twin pregnancies. Methods We retrospectively analyzed the clinical features of both twin and singleton pregnancies, which delivered in Guangzhou Women and Children's Medical Center between January 1, 2012 and December 31, 2013. The twin pregnancies were divided into two groups:those with (GDM-T, n=51) and without GDM (non-GDM-T, n=130), which were matched by maternal age and delivery time (within one month) in a ratio of 1∶2 among singleton pregnancies with (GDM-S, n=102) and without GDM (non-GDM-S, n=102), respectively. The differences of adverse maternal and perinatal outcomes among these four groups were examined. The overall assessment of pregnancy outcomes was completed using Delphi method. Statistical analysis was performed with one-way analysis of variance, t test, Kruskal-Wallis test, rank test, Chi-square test or Fisher's exact test. Results (1) When compared to GDM-S and non-GDM-S group respectively, less women conceived with the help of assisted reproductive technology, higher proportion of women underwent and gestational age at delivery tend to be earlier in GDM-T and non-GDM-T group (all P<0.01). In oral glucose tolerance test,the fasting blood glucose level of GDM-T group was higher than the other three groups (F=21.716, P<0.01), the glucose levels at 1 and 2 h were higher than non-GDM-T and non-GDM-s respectively (both P<0.01), but no significant difference was found when compared with GDM-S group (P>0.01). Similarly, no significant difference was found in prenatal glycosylated hemoglobin value between GDM-T and GDM-S group (P>0.01). (2) There was no significant difference in the incidences of hypertensive disorders of pregnancy, anemia, premature rupture of membranes, oligohydramnios, placental abruption, postpartum hemorrhage, asphyxia neonatorum, small for gestational age, hypoglycemia of newborn, hyperbilirubinemia of newborn and perinatal death between GDM-T group and the other three groups(all P>0.01). Higher incidences of hypertensive disorders of pregnancy and postpartum hemorrhage were shown in the GDM-T group than in the GDM-S and non-GDM-S groups, respectively (both P<0.01). The incidences of preterm birth in GDM-T and non-GDM-T group were both higher than that in GDM-S and non-GDM-S, respectively [54.9%(66/102), 53.8%(140/260), 5.0%(10/102) and 3.0%(6/102), all P<0.01], while no significant difference was found between GDM-T and non-GDM-T group (P>0.01). (3) The overall assessment of pregnancy outcomes did not show any difference between GDM-T group and the other three groups (χ2=6.707, P>0.01). However, the score for fetal outcomes in the GDM-T group was higher than in the GDM-S and non-GDM-S group, but lower than in non-GDM-T group [M(Q)=1.0(2.3), 0.0(3.0), 0.0(0.0), 1.0(2.8) score, χ2=122.818, P<0.01]. Conclusions GDM does not increase the risk of adverse pregnant outcomes in twin pregnancies.
8.Drugs administration and individual affordability under different medical insurance entry price:Example of Anti-tumor Targeted Medicare Drugs
Xin FANG ; Mengyuan TIAN ; Yuxiao ZHANG ; Xiao YIN ; Jianglin HU ; Dan CUI
Chinese Journal of Health Policy 2016;9(11):40-44
Objective: To analyze the New Cooperative Medical System ( NCMS ) funds and Individual afford-ability of anti-tumor targeted drugs under different medical insurance entry price, and to provide the basis for establis-hing the access price for medical insurance. Methods: Choosing Conmana or Kemer ( the lung cancer targeted drug) and Herceptin (breast cancer targeted drug) to analyze the Wuhan NRCMS operating status from 2012 to 2014, use tumor surveillance data from Hubei Province during the period from 2011 to 2015;consult clinical experts to form expert consensus price, refer to the Jiangsu Province Access Price and National Negotiation Price, and explore the fund bal-ance and individual affordability when the afore-mentioned two kinds of drugs can be compensated by medical insurance under different price. Results:The basic account balances of NRCMS in Wuhan from 2016 to 2018 are-11. 948 million Yuan, 2. 513 million Yuan and 82. 955 million Yuan when Kemer can be compensated by medical insurance under Na-tional Negotiation Price. Taking the compensation of Herceptin under National Price after the bargaining, the basic ac-count balances are -26. 901 million Yuan,-35. 962 million Yuan and 17. 542 million Yuan respectively. The rate of poverty caused by illness falls to 33. 40% from 45. 85% when Conmana can be compensated by Medical Insurance un-der National Negotiation Price, while this rate falls to 45. 42% from 46. 00% for Herceptin. Conclusion:The two kinds of drugs can be afforded by the Wuhan NRCMS after the medical insurance access price is negotiated by the govern-ment, but the individual affordability of Herceptin at the National Negotiation Price is worse.
9.Analysis of assets and liabilities of secondary public hospitals in Wuhan city
Ting CHEN ; Xia LI ; Tiantian HU ; Xiao FU ; Qiaoli XIE ; Pengqian FANG
Chinese Journal of Hospital Administration 2016;32(7):503-506
Objective To analyze the assets and liabilities of secondary public hospitals of Wuhan city in Hubei province ,in order to provide references to control the debt scale of such hospitals .Methods Twenty‐one public secondary public hospitals of Wuhan city were analyzed using official statistics on their asset and liabilities from 2012-2014 .Results Such a timeframe witnessed a year‐on‐year growth of both total assets and liabilities of these hospitals ,yet the growth rate of total assets(35.15% ) falls behind that of total liabilities (53.62% )significantly ;significantly slower growth rate of non‐current assets since 2013 ;higher current liabilities than long‐term liabilities on yearly basis ;year‐on‐year grow th of liquidity rate and quick ratio in general ;significant rise of debt‐to‐assets ratio .Conclusions The overall debt scale of such hospitals keeps growing ,a trend deserving actions and correction .
10.Urban secondary hospitals and the hierarchical medical system:development strategy study
Pengqian FANG ; Qiuxia HAN ; Qiaoli XIE ; Xiao FU ; Xia LI ; Tiantian HU
Chinese Journal of Hospital Administration 2016;32(7):500-502
As an important part of the hierarchical medical system in China ,urban secondary hospitals play as a pivot between tertiary hospitals and community healthcare centers.By describing the overall development status of such hospitals in China ,the paper discussed the problems existing in the development of urban secondary hospitals and put forward strategies in the hope of providing reference for the transformation of these hospitals .