Child ; Epstein-Barr Virus Infections ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Herpesvirus 4, Human ; Humans ; Lymphoproliferative Disorders ; etiology ; virology ; Male

Aquaporin4(AQP4),a member of the aquaporin family,is mainly expressed inastrocytes end-feet in the central nervous system. A large number of experimental studies have show n that AQP4 expression plays an important role in the occurrence, development, and regression of brain edema after different types of stroke. In addition, the AQP4 expression can affect the development process of cerebrovascular disease through the mechanisms such as affecting the integrity of the blood-brain barrier and promoting astrocyte migration, nerve regeneration, and neuroinflammatory response. Investigation of regulation mechanisms of AQP4 in transmembrane transport of substance in brain and intracel ular and extracel ular environmental balance and its expression in model of cerebrovascular disease have an important significance for understanding the occurrence, development, protection, and treatment of clinical cerebrovascular disease.

Objective To evaluate the clinical efficacy and safety of catheter ablation for atrial fibrillation in elderly patients.Methods From September 2008 to October 2011,a total of 420 consecutive patients undergoing catheter ablation of atrial fibrillation (AF) were selected.The patients were divided into 3 age groups:30 59 yr group (n=279),60-74 yr group (n=100),and 75-87 yr group (n =41).The effect of operation and complications during operative and postoperative periods were evaluated.Patients were followed up for at least 6 months,and the rate of atrial fibrillation reocurrence and life quality were recorded.Results Among 480 catheter ablation procedures,in 7 (1.5％) patients occurred main complications,while in 5 (1.0％) patients appeared other complications.The incidence of main complications in 3 groups were 1.1％ (3 patients),2.0％ (2 patients) and 4.9％ (2 patients) respectively,other complication rates in 3 groups were 0.7％ (2 patients),1.0％ (1 patient) and 4.9％ (2 patients) respectively and there were no differences between groups (all P＞0.05).During follow-up,the cases without AF relapse were 68.5％ (191 patients),66.0％ (66 patients) and 57.1％ (23 patients) respectively,and the patients with AF paroxysm were 21.1％ (59 patients),21.0％ (21 patients),29.3％ (12 patients) respectively,and there was no significant difference between groups (all P＞0.05).And no difference was found in improvement degree of life quality among three groups (P＞0.05).Conclusions Catheter ablation is safe and effective in elderly patients.For patients over 75 years with many types of cardiovascular diseases,catheter ablation is effective to control the relapse of AF,can significantly improve the quality of life,and has no increased risk of complications.

Objective To investigate the role of mucosal mast cells infiltration and degranulation with nerve growth factor (NGF)in development of visceral hypersensitivity in Sprague-Dawley (SD)rats. Methods The model of visceral hypersensitivity of irritable bowel syndrome (IBS)was established in 19 neonate SD rats with intestinal stimulation (rectalballon distention)on 8th,10th and 12th postnatal days. The other 19 neonate SD rats without colonic distention were assigned to the control group.After rats grew up (six to eight weeks old),the visceral sensitivity was tested by abdominal withdrawal reflex (AWR)in 10 rats of each group.Mast cell infiltration and degranulation were observed with toluidine blue staining in colon tissue slides.The NGF level of intestinal tissues was detected by enzyme-linked immunosorbent assay (ELISA)methods in the left nine rats of each group.The culture system of dorsal root ganglias (DRG)from the neonatal rats was set up.The changes of electrophysilogical characters of DRG stimulated with NGF (100 ng/mL)for four days were recorded with patch-clamp.Paired t test was performed for comparison between groups.Results The results of AWR indicated that neonatal colonic stimulation could significantly increase visceral sensitivity after growing up.Under 20,40 and 60 mmHg (1 mmHg=0.133 kPa)distention pressure,visceral sensitivity scores of visceral hypersensitivity rats and rats of control group were 1 .00±0.50 vs 1 .67 ±0.50,1 .89 ±0.31 vs 2.89 ±0.34 and 2.89 ±0.33 vs 3.89±0.33,the differences were statistically significant (t=-2.83,-6.00 and -6.00,all P <0.05 ). The results of master cells staining in tissue slides showed colonic master cells infiltration was obvious in rats with visceral hypersensitivity,and part of mast cells were degranulation.The result of ELISA demonstrated that NGF level of visceral hypersensitivity rats was significantly higher than that of control group ((11.07±3.06)pg/mg vs (2.38 ±1.88)pg/mg,t =-6.93,P <0.05).The results of electrophysilogical tests of primary cultured DRG indicated that compared with blank control growp,the action potential threshold of neuron in NGF 100 ng/mL group significantly decreased ((-18.0±2.1 )mV vs (-29.0 ± 2.5 )mV,t = 12.26,P <0.05)and discharge frequency increased ((5 .0± 1 .4 )/800 ms vs (12.0 ± 3.2)/800 ms,t=-8.40,P <0.05 ).Meanwhile,neuron voltage-gated K+ current density remarkably decreased,most were sustained delayed rectifier K+ current (I K )decreasing ((279.0 ±48.0)pA/pF vs (203.0±39.0)pA/pF,t=6.18,P <0.05).Conclusion Colonic stimulation in neonatal rats could cause intestinal master cells infiltration and degranulation,which induced changes of neuron electrophysilogical characters and resulted in visceral hypersensitivity after growing up.

This study is to investigate the sedative and hypnotic effects of a novel compound H1208. The sedative activity of H1208 was investigated by recording the spontaneous locomotor activity of mice. The hypnotic property was evaluated by the latency and duration of sleep (loss of righting reflex) in mice and the effect of hypnotics on sleep pattern of electroencephalogram were studied in conscious, freely moving mice with chronically implanted electrodes. The brain monoamine neurotransmitters levels in mice were measured by high performance liquid chromatography-electrochemical detection. The spontaneous locomotor activity was decreased by 56.7% and 80.2% in H1208 (5 and 25 mg x kg(-1), ip) treated mice, respectively. The loss of righting reflex was directly induced in mice after H1208 (60 mg x kg(-1), ip) administration. The non-rapid eye movement sleep increased significantly by 131% and 259%, respectively, within 3 hours after H1208 (30 and 60 mg x kg(-1), ip) administration. However, the rapid eye movement sleep decreased significantly. The contents of DA in the striatum and cortex and 5-HT in the cortex decreased significantly. These results demonstrated that H1208 has potent sedative and hypnotic effects, which may be closely related to the decreased contents of DA and 5-HT in mouse brain.
Animals ; Brain ; drug effects ; physiology ; Dopamine ; metabolism ; Electroencephalography ; Hypnotics and Sedatives ; pharmacology ; Mice ; Motor Activity ; drug effects ; Serotonin ; metabolism ; Sleep ; drug effects

Based on the transcriptome data, we cloned the open reading frame of IiHCT gene from Isatis indigotica, and then performed bioinformatic analysis of the sequence. Further, we detected expression pattern in specific organs and hairy roots treated methyl jasmonate( MeJA) by RT-PCR. The IiHCT gene contains a 1 290 bp open reading frame( ORF) encoding a polypeptide of 430 amino acids. The predicted isoelectric point( pI) was 5.7, a calculated molecular weight was about 47.68 kDa. IiHCT was mainly expressed in stem and undetectable in young root, leaf and flower bud. After the treatment of MeJA, the relative expression level of IiHCT increased rapidly. The expression level of IiHCT was the highest at 4 h and maintained two fold to control during 24 h. In this study, cloning of IiHCT laid the foundation for illustrating the biosynthesis mechanism of phenylpropanoids in I. indigotica.
Acyltransferases ; chemistry ; genetics ; metabolism ; Amino Acid Sequence ; Cloning, Molecular ; Gene Expression Regulation, Plant ; Isatis ; chemistry ; classification ; enzymology ; genetics ; Models, Molecular ; Molecular Sequence Data ; Open Reading Frames ; Phylogeny ; Plant Proteins ; chemistry ; genetics ; metabolism ; Quinic Acid ; metabolism ; Sequence Alignment ; Shikimic Acid ; metabolism

Adolescent ; Anti-Bacterial Agents ; therapeutic use ; Anti-Ulcer Agents ; therapeutic use ; Female ; Humans ; Penicillin G Procaine ; therapeutic use ; Stomach Ulcer ; drug therapy ; microbiology ; pathology ; Syphilis ; drug therapy ; microbiology ; pathology ; Syphilis Serodiagnosis ; methods ; Treponema pallidum ; isolation & purification

Objective To observe the expression of heparanase(HPA)in kidney of diabetic nephropathy(DN)rats and to investigate the role of HPA in the pathogenesis of proteinuria in DN rals. Methods DM rat models induced by intraperitoneal injection with streptozotocin were constnmted.Twenty-six rats were randomly divided into heahhy control group(n=6),DM6-week group(n=10)and DM 12-week group(n=10).Relative kidney weight(RKW),blood glucose,BUN,Scr,24-hour urine volume and(t 24-hour proteinuria quantilation were measured,and renal morphology was observed after 6 and 12 weeks.The expression of HPA was examined by immunohistochemistry and reverse transcription PCR. Results (1)Conq)ared with the control group,RKW,blood glucose,BUN,24-hour urine volume and 24-hour proteinuria quantitation of DM groups increased markedly(P＜0.05 orP＜0.01).(2)Compared to the control group,the expression of HPA mRNA and protein in DM groups increused significantly(P＜0.01).(3)HPA protein and mRNA were positively correlated with the quantification of urinary prolein (r=0.783,P＜0.01;r=0.793,P＜0.01). Conclusion The increased expression of HPA maybe parlicipate in the pathogenesis of proteinuria in DN.

OBJECTIVETo compare the difference in the clinical efficacy on premature ovarian failure (POF) between the acupoint catgut implantation combined with artifical periodic therapy and the simple artificial periodic therapy and explore its effect mechanism.

METHODSSixty-five patients of POF were randomized into the two groups. In a western medication group, 32 cases were treated with the artificial periodic therapy with the oral administration of medroxyprogesterone acetate tablets. In a catgut implantation + western medication group, 33 cases were treated with the acupoint catgut implantation combined with artificial periodic therapy. The acupoints of Neiguan (PC 6), Zusanli (ST 36), Guanyuan (CV 4) and Sanyinjiao (SP 6) were selected. The treatment was lasted for half a year and the follow-up visit was for another half a year in the two groups. Kupperman index was used to assess the improvements in the clinical symptoms. The levels of serum sexual hormones such as follicle stimulating hormone (FSH) and estradiol (E2) were evaluated of the patients in the two groups before and after treatment. The efficacy was compared between the two groups.

RESULTSThe scores of the clinical symptoms were all significantly improved after treatment and in the follow-up in the two groups (P < 0.01, P < 0.05). In the 6-month follow-up visit after treatment, the result in the catgut implantation + western medication group was better than that in the western medication group (8.17 +/- 1.19 vs 13.68 +/- 1.08, P < 0.01). FSH was reduced after treatment in the two groups (all P < 0.01) and E2 was increased (all P < 0.05). The curative and remarkably effective rates were 75.8% (25/33) and 81.8% (27/22) after treatment and in the follow-up visit in the catgut implantation + western medication group, which were better than 67.9% (19/28) and 53.6% (15/28) in the western medication group separately (P < 0.05, P < 0.01).

CONCLUSIONThe acupoint catgut implantation combined with artificial periodic therapy achieve the remarkable improvements in the clinical symptoms of POF in the patients and the better results as compared with the simple western medication therapy. The combined therapys efficacy is stable and the long-term efficacy is apparently superior. The effect mechanism is related to the improvements in the serum sexual hormone levels.

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Catgut ; utilization ; Female ; Follicle Stimulating Hormone ; metabolism ; Humans ; Primary Ovarian Insufficiency ; metabolism ; therapy ; Prostheses and Implants ; Treatment Outcome ; Young Adult

Objective To study the effectiveness and safety of the side-branch (SB) balloon preimbedding technique on coronary bifurcation lesions (CBLs) in elderly patients.Methods A retrospective analysis was conducted on 111 elderly patients with CBLs in our hospital from January 2011 to January 2013,of whom 59 patients received SB balloon pre-imbedding and 52 patients received SB wire protection.The immediate blood flow of the side-branch after treatment,the performance of the stent,and major adverse cardiovascular events (MACE) during hospitalization,6 and 12 months after treatment,and coronary angiography 6 months after treatment were compared between the two groups.Results There were no statistical differences between the two groups in clinical characteristics,lesion distribution,length and diameter of MB or SB,bifurcation angle,length and number of main branch(MB) stenting,or MACE during hospitalization and 6 months after treatment (each P＞0.05).There was no statistical difference in immediate postoperative angiography between patients with thrombolysis in myocardial infarction (TIMI) grade 3,coronary stenosis more than 25％ in the MB (P＞0.05).The percentages of patients with coronary stenosis more than 50 ％ in SB and patients who needed SB stenting were lower in the balloon pre-imbedding group than in the wire protectiongroup[8.5％ (5/59) vs.23.1％ (12/52),42.4％ (25/59) vs.61.5％ (32/52),each P＜0.05].After 6 months of treatment,there was no statistical difference in coronary angiography in TIMI grade 3 of MB and coronary stenosis more than 25％ in MB between the two groups (P＞0.05)Also,the percentage of patients with TIMI grade 3 in SB was higher in the balloon pre-imbedding group than in the wire protection group (37/41 vs.24/34,P＜0.05);the percentage of patients with coronary stenosis more than 50％ in SB was lower in the balloon pre-imbedding group than in the wire protection group (3/41 vs.8/34,P＜0.05);and the degree of stenosis,the late lumen loss and the incidence of stem restenosis in SB were lower in the balloon pre-imbedding group than in the wire protection group (P＜0.01).The incidence of MACE 12 months after PCI was lower in the balloon pre-imbedding group than in the wire protection group (7/59 vs.14/52,P＜0.05).The pre-balloon imbedding group had a lower cost than the wire protection group,but with no statistical significance [(55 113±968) RMB vs.(61 023±1 311) RMB,P＞0.05].Conclusions SB balloon preimbedding is safe for the treatment of CBLs in elderly patients,and its effectiveness in both short-and long-term is better than that of wire protection.