1.Tristetraprolin attenuates subarachnoid hemorrhage-induced early brain injury in rats
Chao-Hui CHEN ; Xi-Ping HONG ; Pin LAN ; Feng PAN
Chinese Journal of Pathophysiology 2018;34(2):287-293
AIM:To explore the expression level of tristetraprolin(TTP)in rats after subarachnoid hemor-rhage(SAH)as well as the potential role of TTP in the early brain injury(EBI)after SAH in rats.METHODS:In the first experiment setting,total 56 adult male SD rats were randomly divided into sham group and SAH group.The SAH mod-el was performed by endovascular perforation.The brain tissues were taken out after SAH at 5 different time points(0,12, 24,48,72 h and 1 week).The expression of TTP in the brain tissues was detected by Western blot.In the second experi-ment,a total of 60 SD rats were divided into 4 groups: sham group, SAH group, SAH +vector group and SAH +TPP group.Neurological score,brain water content and blood-brain barrier were evaluated at 48 h after SAH.TUNEL staining was performed to detect cell apoptosis in the rat brain tissue.ELISA method was used for quantitative detection of interleu-kin-6(IL-6)and tumor necrosis factor-α(TNF-α).The protein levels of TTP,Bax,Bcl-2 and cleaved caspase-3 in the rat brain tissue were detected by Western blot.RESULTS:The protein expression of TTP in the brain was downregulated markedly from 12 h after SAH,reached the lowest level at 48 h,and then had an upward trend.After modeling for 48 h, Garcia neurological score was significantly reduced,and brain water content and Evans blue(EB)content of the brain tis-sue of the rats in SAH group were significantly higher than those in sham group(P<0.05).SAH induced significant in-creases in IL-6 and TNF-αlevels in the brain tissue(P<0.05).The number of TUNEL-stained cells was increased in the subcortical brain region after SAH compared with sham group.In addition,a lower level of Bcl-2 and higher levels of Bax and cleaved caspase-3 in the rat brains were observed at 48 h after SAH.However,the neurological deficit score was signif-icantly increased,and the brain water content and EB content in the rat brains were significantly reduced in SAH +TTP group in comparison with SAH +vector group(P<0.05).Over-expression of TTP dramatically suppressed the levels of IL-6 and TNF-αin the rat brains,and reduced the number of TUNEL positive cells.Furthermore,upregulation of TTP signifi-cantly decreased the levels of cleaved caspase-3 and Bax, and evidently enhanced the expression of Bcl-2(P<0.01). CONCLUSION:The expression of TTP is significantly decreased in early period after SAH, and enhancing the level of TTP effectively inhibits EBI following SAH in rats.
2.An analysis on the association between sleep quality and dietary behaviors among college students
Chun-Yan XU ; Wei LI ; Chao-Lan PAN ; Meng-Yuan GE
Journal of Preventive Medicine 2017;29(2):142-145
Objective To examine the effect of eating behavior and dietary intake on the sleep quality of college students,and to provide basis for improving students' sleep quality.Methods College students from Hangzhou Normal University were randomly selected and they were investigated from October to November,2014.Pittsburgh Sleep Quality Index (PSQI) was used to measure the quality of sleep,and a self-designed questionnaire was used to measure eating behavior and dietary intake.Results A total of 588 college students were investigated.The average score of PSQI was 4.72 ±2.52,and 76 (12.9%) of the respondents have poor sleep quality.Single-factor analyses showed that sleep quality was not associated with gender,BMI,cigarette smoking and academic pressure,but was associated with peer effect,meal regularity,and frequency of fish and poultry intake (P < 0.05).Multi-factor logistic regression showed that frequency of eating-out (OR =3.04,95% CI:1.58-5.84;P =0.001,4 or more than 4 times vs.less than once per week) irregular dinner (OR =1.96,95% CI:1.23-3.40;P =0.017,irregular vs.regular) and less fish intake (OR =2.48,95% CI:1.27-4.85;P =0.01,less than once vs.2-3 times per week) increased the risk of poor sleep quality.Conclusion Eating behavior and dietary intake are closely related to sleep quality of college students and they should concern about meal regularity and nutrition balance.
3.The associations between idiosyncratic adverse drug reactions and HLA alleles and their underlying mechanism.
Qing WANG ; Hu MEI ; Ya-Lan ZHANG ; Xian-Chao PAN ; Wen TAN ; Li CHAO
Acta Pharmaceutica Sinica 2013;48(6):799-808
With the advent of Twenty-First century, more and more genome-wide association studies (GWAS) showed that idiosyncratic adverse drug reactions (ADRs) were closely related with human leukocyte antigen (HLA) alleles, such as the associations of abacavir-HLA-B*5701, allopurinol-HLA-B*5801, and carbamazepine-HLA-B*1502, etc. To explore the mechanisms of these idiosyncratic drug reactions, hapten hypothesis, danger signal hypothesis, pharmacological interaction (P-I) concept and autoimmune mechanism are proposed. In this paper, recent GWAS studies on the HLA-mediated adverse drug reactions and underlying mechanism are reviewed in detail.
Alleles
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Allopurinol
;
adverse effects
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Anti-HIV Agents
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adverse effects
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Anticonvulsants
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adverse effects
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Carbamazepine
;
adverse effects
;
Dideoxynucleosides
;
adverse effects
;
Drug Hypersensitivity Syndrome
;
etiology
;
immunology
;
Drug-Related Side Effects and Adverse Reactions
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genetics
;
immunology
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Enzyme Inhibitors
;
adverse effects
;
Genome-Wide Association Study
;
HLA Antigens
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genetics
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HLA-B Antigens
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immunology
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HLA-B15 Antigen
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immunology
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Humans
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Stevens-Johnson Syndrome
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etiology
;
immunology
4.One-stage complete correction of 52 cases infantile aortic coarctation or interrupted aortic arch associated with intracardiac anomalies.
Bao-Ying MENG ; Tao WANG ; Qing ZHANG ; Chao MA ; Le PENG ; Yuan-Xiang WANG ; Xiao-Lan PAN
Chinese Journal of Surgery 2011;49(1):66-69
OBJECTIVETo sum up one-stage complete correction of infantile aortic coarctation (CoA) or interrupted aortic arch (IAA) associated with intracardiac anomalies through median sternotomy.
METHODSThe clinical data of 52 infants with CoA or IAA associated with intracardiac anomalies from May 2004 to March 2010 was analyzed. There were 32 male and 20 female, aged from 25 d to 7 months with a mean of (2.03 ± 0.15) months, weighted from 2.5 to 8.0 kg with a mean of (3.9 ± 0.5) kg. All of intracardiac defect were corrected by self-arcula cordisand. Forty cases with CoA were underwent by operative techniques, including resection with end to side anastomosis, extended end to side anastomosis (n = 34), and vertical incision and cross joint (n = 3). Three cases of pseudo-CoA were cut and ductus arteriosus or ligamentum arteriosus and dissected arch. Twelve cases of IAA were underwent by extended end to side anastomosis.
RESULTSThe time of cardiopulmonary bypass was (98 ± 41) min, and all patients hemorrhaged (78 ± 13) ml during operation. One case of IAA associated with double outlet right ventricle died after 43 d post-operation because of left bronchial stenosis. The other patients were in good condition. The rate of aneurysm formation was 11% in 1 to 6 years' follow-up.
CONCLUSIONSOne-stage complete correction of infantile CoA or IAA associated with intracardiac anomalies through median sternotomy yields excellent intermediate surgical results. This operative approach is beneficial, not only with shorten period of therapy and loss operative cost.
Aortic Coarctation ; surgery ; Cardiopulmonary Bypass ; Female ; Heart Defects, Congenital ; surgery ; Humans ; Infant ; Infant, Newborn ; Male ; Retrospective Studies ; Sternotomy ; methods
5.Cardiac myxoma in children: report of three cases.
Bao-Ying MENG ; Tao WANG ; Qing ZHANG ; Chao MA ; Xiao-Lan PAN ; Le PENG
Chinese Journal of Contemporary Pediatrics 2009;11(1):82-82
Child
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Child, Preschool
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Female
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Heart Neoplasms
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diagnosis
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Humans
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Male
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Myxoma
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diagnosis
6.Effects of Chinese herbal compound "Jisuikang" on phagocytosis of microglia and regeneration of injured neurons in co-culture system
Lan Ya PAN ; Yang GUO ; Yun Long ZHOU ; Chao Wen YUAN ; Yong MA ; Cheng Gui HUANG
Chinese Journal of Immunology 2017;33(11):1652-1657
Objective:To observe the effects of Chinese herbal compound'Jisuikang'on the phagocytosis of microglia and the regeneration of injured neurons in co-culture system.Methods: Prepared drug serum of 'Jisuikang′ and isolated and identified the primary neuron and microglia.The neuron cells were induced apoptosis by glutamic acid and the microglia cells were predisposed by drug serum of'Jisuikang'.Then,the co-culture system of injured neurons and microglia cells was established.24 h and 96 h after co-culture,engulfment of neuron debris by microglia cells and regeneration of injured neurons were observed by immunofluorescence double labeling method.Results: 24 h after co-culture,middle and high dose of'Jisuikang' showed greater phagocytic percentage and phagocytic index than that of control.In comparison of LPS,high dose of'Jisuikang' showed no significant difference.96 h after co-culture,first grade of neuritis of middle and high dose of'Jisuikang' were more than that of control,and there were no significant difference in comparison of LPS.Neuritis' mean length per cell of middle and high dose of'Jisuikang' were larger than that of con-trol.Neuritis' mean length per cell of high dose of'Jisuikang' showed significant difference in comparison of LPS.Conclusion:Traditional Chinese medicine compound'Jisuikang'may enhance engulfment of neuron debris by microglia to improve local microenvi-ronment,which promote the repair and regeneration of injured neurons.
7.Correlation between obesity and female hyperostosis.
Pan LI ; Qing-lu LUO ; Cheng-qi HE ; Lin YANG ; Qun LAN ; Yuan-chao WU
Chinese Medical Journal 2008;121(18):1792-1795
BACKGROUNDHyperostosis is a common pathological change among people more than 50 years old; it is connected with many risk factors, which are all indefinite. The aim of this study was to prospectively investigate the correlation between obesity and female hyperostosis.
METHODSTotally 4326 females were included in this study and their basic information including their age, stature, body weight, course of disease, symptoms, medical complications, frequency of exercise and smoking, and X-ray and bone mineral density (BMD) examination results, was carefully collected for a statistical analysis. The t test or chi(2) test was used to evaluate the differences between two groups; an analysis of variance (ANOVA) was used to evaluate the differences among several groups; the relationship between hyperostosis and body mass index (BMI), age, medical complications, exercise, average BMD was analyzed using Logistic regression.
RESULTSThe incidence rate of hyperostosis in obese patients was higher than that in patients with normal weight (P = 0.000). Obesity was relevant to hyperostotic sites (P = 0.000), and the incidence of hyperostosis in one or several sites of the lumbar vertebrae, knee joints, and other sites was higher in obese patients than in patients with normal weight. There was also a difference in the extent of hyperostosis between these two groups. BMI had positive effects on the incidence and degree of hyperostosis, which were also relative to the sites of hyperostosis, and the BMI of patients without hyperostosis were much lower than those of the patients with hyperostosis in their lumbar vertebrae, knee joints, or multiple sites. Obesity, age, and exercise had positive effects on the incidence of hyperostosis (P = 0.002, 0.000, 0.018).
CONCLUSIONSObesity is a significant potential stimulant of hyperostosis, especially hyperostosis in knee joints and multiple sites; keeping fit might be an important way to prevent it.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Body Mass Index ; Female ; Humans ; Hyperostosis ; etiology ; Middle Aged ; Obesity ; complications ; Prospective Studies
8.Voice analysis in pre-lingual cochlear implant adults.
Tao PAN ; Fu-Rong MA ; Ke-Li CAO ; Wei-Ming SONG ; Chao-Gang WEI ; Wei-Lan CUI ; Hua-Rong LIAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(4):271-274
OBJECTIVETo observe voice characteristic of pre-lingual cochlear implant adults for cochlear implantation and phoniatrics.
METHODS3s-sustained voice of vowel [ a: ] of 28 pre-lingual cochlear implant adults, 18 pre-lingual deafness adults and 10 adults with normal hearing were analyzed. Specifically, the Voice analyses include fundamental frequency, first formant, second formant, frequency perturbation quotient (FPQ), amplitude perturbation quotient (APQ) and harmonic noise ratio (HNR). The outcomes of 3 groups were compared.
RESULTSThe fundamental frequency was lower in cochlear implant group [(175.42+/-25. 31) Hz] than that in deafness group [(210.84+/-54.300) Hz] (P = 0.02). The position of formant of cochlear implant group [F2 = (1264. 64 +/- 152.19) Hz] was more access to normal than that of normal hearing group[ F2 = (1422.44 +/- 232. 37) Hz, P = 0. 02]. FPQ of cochlear implant group (2.09 +/- 1.15) was more access to normal than that of deafness group (5.32+/-4.29, P=0.006). The voice of cochlear implanted and deafness adults were much more different individually.
CONCLUSIONSIn the aspect of acoustic characteristic of voice, pre-lingual cochlear implant adults could benefit cochlear implantation finitely. As speech perception of pre-lingual cochlear implant adults was far worse than that of children and post-lingual cochlear implant adults, the general outcome of pre-lingual cochlear implant adults was very limited. Cochlear implant of those candidate should be cautious.
Adolescent ; Adult ; Case-Control Studies ; Cochlear Implantation ; Cochlear Implants ; Deafness ; therapy ; Humans ; Male ; Speech Perception ; Treatment Outcome ; Voice Quality ; Young Adult
9.Clinical and experimental studies of childhood acute myeloid leukemia with 11q23/MLL rearrangements.
Ya-xiang HE ; Yong-quan XUE ; Hong-ying WANG ; Xue-jun SHAO ; Jin-lan PAN ; Jun XU ; Nai-chao YANG ; Zheng-hua JI ; Yi-ping HUANG ; Shao-yan HU
Chinese Journal of Medical Genetics 2012;29(6):677-682
OBJECTIVETo explore clinical and experimental features of 28 cases of childhood acute myeloid leukemia (AML) with 11q23/MLL gene rearrangements.
METHODSKaryotypes of 234 cases of de novo childhood AML were analyzed using short-term culture of bone marrow cells and R-banding. The fusion transcripts involving MLL gene and partial tandem duplication of MLL (MLL-PTD) were detected by multiple reverse transcription polymerase chain reaction (RT-PCR) assay. Two cases with 11q23 translocation by karyotypic analysis but with negative result of multiple RT-PCR were studied with MLL-dual-color fluorescence in situ hybridization (D-FISH).
RESULTSR-banding karyotypic analysis has revealed 20 cases with 11q23 translocation (14 cases with M5, 4 cases with M4, 2 cases with M2), including 12 cases with t(9;11)(p22;q23), 3 cases with t(1;11)(q21;q23), 2 cases with t(6;11)(q27;q23), 1 case with t(11;19)(q23;p13), 1 with t(5;11)(q31;q23), and 1 with t(X;11)(q24;q23). Eighteen cases with 11q23 translocation having fusion transcripts involving MLL genes were confirmed with multiple RT-PCR; 2 cases showed negative results, but they were confirmed to have MLL rearrangements by D-FISH. MLL-PTD was also detected in 8 cases (4 cases M5, 2 cases M4, M2 and M6, one case each) from the other childhood AML cases. The total incidence of 11q23/MLL gene rearrangements was 11.97% (28/234), and most of patients(85.7%, 24/28) were M4/M5. The complete remission (CR) rate after treatment for the 28 cases with MLL rearrangements was 53.8%, the difference was significant by statistics (P< 0.05) compared with 90.5% for the control group (M4/M5 childhood AML with other karyotypic abnormalities or normal karyotype). Of them, 2 cases receiving intensive chemotherapy survived for 81 and 66 months, respectively, 4 cases receiving allogeneic stem cell transplantation survived for 21, 20, 16 and 11 months, respectively, and are still alive with CR. The medium survival (MS) time for 28 cases with 11q23/MLL rearrangements was 11 months, whereas the MS for control group was 15 months. The difference was not statistically significant(P> 0.05).
CONCLUSIONThe 11q23/MLL rearrangements is highly correlated with the occurrence of monocytic leukemia (M4 and M5). The 11q23 translocation and MLL-PTD are mutually exclusive, though both are indicative of poor prognosis. Intensive chemotherapy and allogeneic stem cell transplantation may ameliorate the clinical outcome. Multiple RT-PCR combined with karyotypic analysis and D-FISH are useful for screening the 11q23/MLL rearrangements in childhood AML.
Adolescent ; Child ; Child, Preschool ; Chromosomes, Human, Pair 11 ; Female ; Humans ; Immunophenotyping ; In Situ Hybridization, Fluorescence ; Infant ; Karyotyping ; Leukemia, Myeloid, Acute ; diagnosis ; drug therapy ; genetics ; mortality ; Male ; Myeloid-Lymphoid Leukemia Protein ; genetics ; Remission Induction ; Translocation, Genetic ; Treatment Outcome