1.Significance of Expression of Brain-Derived Neurotrophic Factor and Neuron Apoptosis in Brain of Rats with Repeated Febrile Seizures
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To explore the changes of brain-derived neurotrophic factor(BDNF) after repeated febrile seizures (FS).Methods Fifty-one male SD rats were divided into 3 groups randomly: normal group (NC group,n=14) ,hyperthermic group (HC group,n=19),FS group(n=18). FS were induced by hot water bath.The level of BDNF in hippocampus homogenate were measured by enzyme linked immunosorbent assay (ELISA) and the expression of BDNF were measured by immunohistochemistry.The apoptosis of the brain cells were determined by terminal deoxynucleotide mediated nick end labeling (TUNEL).The results were analysed with the software of SPSS 13.0.Results The level of BDNF in hippocampus in FS group(89.90?12.51) ng/g was significantly higher than that in NC group(54.43?18.92) ng/g and HC group(64.09?15.03) ng/g (Pa
2.Significance of Expression of Nuclear Factor-?B in Brain Tissues of Rats with Repeated Febrile Seizures
Journal of Applied Clinical Pediatrics 2006;0(24):-
Objective To observe the expressions of nuclear factor-?B(NF-?B)in brain tissue of rats with repeated febrile seizures(FS)and explore its significance in brain injury of rats with FS.Methods Fifty-one male SD rats were divided into 3 groups according to random number method:normal group(n=14),hyperthermic group(n=19),FS group(n=18).FS models were induced by placing rats in warm bath;the rats without FS after warm-bath were assigned as hyperthermic group ;the normal controls received no treatment.The expression of NF-?B was measured by immunohistochemistry.The apoptosis of brain tissue was determined by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling(TUNEL).SPSS 13.0 software was applied for statistical treatment.Results In FS group,the number of the NF-?B positive neuron increased much more than that of hyperthermic group and normal group(Pa
3.Effects of Repeated Hyperthermia and Febrile Seizure on Somatostatin Content in Brain of Rats and Its Signi-ficance
Journal of Applied Clinical Pediatrics 1986;0(02):-
Objective To explore the change of somatostatin(SS)in brain areas of juvenil rats with repeated febrile seizures(FSs)and hyparthermia.Methods Fifty-one male SD rats were divided randomly into 3 groups:normal group(NC group,n=14),hyperthermic group(HC group,n=19)and febrile seizure group(FS group,n=18).FS were induced by placing rats in a bath of water.The expressions of SS in DG,CA3,CA1 and CTL were measured by immunohistochemistry.The level of SS in hippocamps of these rats were determined by radioimmunoassay.Results The results of immunohistochemistry shew in HC group,the number of the SS positive neuron were increased in DG(21.10?2.51),CA3(10.60?2.41)in FS group,which was less than that in NC group(10.50?2.12,6.90?2.02),there was no difference in CA1 and CTL.The result of Radioimmunoassay:the level of SS in hippocampus in HC group[(53.74?7.56)ng/g]was higher than that in FS group[(39.54?7.74)ng/g](P0.05).Conclusion There is different change of somatostatin content in some brain areas of rats with repeated febrile seizure,which suggest that SS can increase the affectivity of seizure and promote the seizure.
4.The role of Treg/CD4~+ T in the pathogenesis and prevention of bowel dysfunction after acute enteritis in rots
Min GUO ; Yan-Qing LI ; Xiu-Li ZUO ;
Chinese Journal of Digestion 2001;0(07):-
Objective To investigate the role of Treg/CD4~+ T in the pathogenesis and prevention of bowel dysfunction after acute enteritis in rats.Methods Studies were conducted in 40 female Wistar rats with weights of 170-180 g.The rats were divided into normal control,experimental control,antibi- otics-treated,probiotics-treated and combined treated groups.The latter 4 groups were first infected with shigella flexneri by garage to establish the model of acute infectious enteritis,then normal control and experimental control group were administered 1 ml saline once everyday for 10 days.Antibiotics- treated group was given gentamycin 1 ml (8.32 mg?kg~(-)?d~(-1)) for 3 days,then was given saline 1 ml once everyday for 7 days.Probiotics-treated group was given medilac-S 1 ml (52 mg?kg~(-1)?d~(-1)) by gavage for the first 7 days,and 1 ml saline for the latter 3 days.The combined treatment group was given gentamycin for the first 3 days and medilac-S for the latter 7 days using the same dose.All rats were given colon-rectal balloon distention 16 to 22 days after the occurrence of bowel inflammation.The contraction of enteric smooth muscle was measured in vitro,the proportion of Treg cells in blood and mesenteric lymph node were analyzed by flow cytometry,and the histological changes were also observed at the same time.Statistical analyses were performed by using t test or one way ANOVA. Results No obvious changes of distal colon were histological observed in different groups.The perceptual threshold of rat gut decreased and the tension integral of enteric smooth muscle increased,and the ratio of Treg/CD4~+ T in blood and mesenteric lymph node was significantly lower in experimental control group [(4.40?0.43)%;(2.47?1.36)%] than normal controls [(5.15?0.47)%;(4.01?1.12)%,P<0.05],while that of combined treatment group had no difference from normal controls [(4.95+0.41)%;(3.22?1.86)%].Conclusions The ratio of Treg/CD4~+ T may play an impor- tant role in the pathogenesis of post-infectious bowel dysfunction in animals.Treating acute enteritis with both antibiotics and probiotics can normalize the abnormalities,and thus prevent the occurrence of bowel dysfunction.
5.Clinical study of tegaserod in treatment of chronic constipation,dyspepsia and reflux overlapping symptoms
Juan ZENG ; Xiu-Li ZUO ; Yan-Qing LI ;
Chinese Journal of Digestion 2001;0(07):-
Objective To evaluate the efficacy of tegaserod in treating overlapping symptoms of chronic constipation and dyspepsia or reflux.Methods Eighty eight patients with overlapping symptom were enrolled and randomly divided into:tegaserod group(TEG group,received tegaserod 6 mg bid), PPI group(esomeprazole 40 mg qd)and combined group(tegaserod 6 mg bid and esomeprazole 40 mg qd).Esomeprazole was taken 30 min-prior to the meals in the morning.Each group was treated for 4 weeks.Endpoints to evaluate the clinical efficacy including complete relief rates(CRRs)of epigastric symptoms,the total scores of gastrointestinal symptoms,gastric emptying and colonic transit time and gastric sensation.Results The total scores of gastrointestinal symptoms were all significantly decreased in three groups after four-week therapy,which were more decreased markedly in TEG group(7.23?3.13)and the combined group(5.13?2.26)than that in PPI group(13.58?2.02,P
7.Attempts in building a smart healthcare system at a research hospital
Yan XIU ; Yong LI ; Min LIANG ; Hao WEN
Chinese Journal of Hospital Administration 2016;(1):58-61
Described in the paper are contents and characteristics of building smart healthcare system at a research hospital,and practices of the hospital in exploring smart healthcare.Specific measures include staged building of an e-hospital emphasizing information security; closed-loop transformation with mobile and barcode technology for higher efficiency and patient safety;optimizing the service flow with smart interconnection to create an orderly outpatient environment; implementing healthcare regulations with information systems to ensure a homogeneous medical environment;and integrating the entire medical system to promote coordinated development of regional healthcare service. These measures help upgrade the information service effectiveness and quality of care of the hospital.
8.Construction of pGL3-EPO-HRE reporter gene vector and detection of its function
Yan SU ; Hongwei LI ; Jing ZHANG ; Ruijuan XIU
Basic & Clinical Medicine 2006;0(11):-
Objective To construct pGL3-EPO-HRE reporter gene vector and to detect its function.Methods To synthesize two single-strand DNA fragments which had overlap sequence at the 3'end,then mixed them to construct the double-strand DNA fragment which include three copies of(57 bp) human erythropoietin(EPO) HRE.There was MluⅠor BglⅡ digestive site at the end of this DNA fragment.After inserting the(87 bp) fragment into pMD18-T for sequencing,the correct sequence was inserted into pGL3-promoter to construct pGL3-EPO-HRE.The recombinant vector was co-transfected into MCF-7 cells with pcDNA3-HIF-1?or pcDNA3 respectively,(12 h) later cells were treated with(100 ?mol/L) cobalt chloride(CoCl_(2)) for(24 h), then the expression of pGL3-EPO-HRE was observed by dual-luciferase reporter gene assay method.Results The sequence of pGL3-EPO-HRE was identical with human EPO HRE sequence.pGL3-EPO-HRE luciferase activity increased about 10 fold(P
9.Factors affecting the success rate of artificial insemination with donor sperm.
Xiu-fang LI ; Hua-rui FAN ; Yan SHENG ; Mei SUN
National Journal of Andrology 2015;21(3):234-238
OBJECTIVETo explore various factors affecting the clinical pregnancy outcomes of artificial insemination with donor sperm (AID).
METHODSWe retrospectively analyzed 15,744 cycles of AID in 6302 women and investigated the association of the clinical pregnancy outcomes of AID with the treatment protocols, the times of insemination per cycle, the age of the infertile women, the status of the oviduct, and the number of AID cycles.
RESULTSThe pregnancy rate of AID was higher in the chlomiphene-treated women than in those of the natural cycle group (P = 0.003) but showed no significant differences either between the chloramiphene and human menopause gonadotropin (HMG) or between the HMG and natural cycle groups (P > 0.05), and so was it in the women that had received AID twice per cycle before and after ovulation (26.3%) than in those that had undergone only once before (7.0%) or after ovulation (23.7%) (P < 0.05). However, the pregnancy rate was remarkably lower in the women aged 35-40 years (16.5%), especially in those over 40 years (1.2%), than in those under 35 years (26.0%) (P < 0.05). There was no significant difference in the success rate of AID between the women with oviductal adhesion and those without (27.4% vs. 28.1%, P > 0.05). The pregnancy rate of the first cycle of AID (27.6%) was markedly higher than those of the second (24.7%), third (23.9%), and fourth (23.1%) (P < 0.01), but with no significant differences among the latter three cycles (P > 0.05), while that of the fifth cycle (19.0%) was remarkably lower than those of the first four (P < 0.01).
CONCLUSIONThe age of the infertile women is an important factor affecting the success rate of AID. AID twice per cycle is better than once only. For those without oviductal factors, at least 4 cycles of AID are required before in vitro fertilization.
Adult ; Age Factors ; Female ; Fertilization in Vitro ; Humans ; Infertility, Female ; Insemination, Artificial ; Insemination, Artificial, Heterologous ; Ovulation ; Ovulation Induction ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Retrospective Studies