Animals ; Bibenzyls ; chemical synthesis ; therapeutic use ; Imidazoles ; chemical synthesis ; therapeutic use ; Mice ; Pyrimidines ; chemical synthesis ; therapeutic use ; Sarcoma 180 ; drug therapy

Objective To know the apolipoprotein E(APOE)genotypes frequency of Chinese old people in the rural area. Methods 2000 Chinese aged 65 years or older from four sites in China were enrolled in this study in 2004-2008.Two sites were from the Sichuan province in southwestern China,and another two sites were from the Shandong province in eastern China.The finger blood samples on filter paper were collected from all the investigated people in the end of the interview.The genotype for apolipoprotein E(gene symbol,APOE)was determined by eluting DNA from a dried blood spot,followed by HhaI digestion of amplified products.Results Through statistical analysis,APOE genotypes frequency of Chinese people aged 65 years or older in the rural area,as for ?/?2,?2/?3,?2/?4,?3/?3,?3/?4,?4/?4,they were 1.1%,13.55%,2.05%,68.80%,13.35% and 1.15% respectively.4 carriers and no 4 carriers were 16.55% and 83.45%.Conclusion The distribution of APOE 4 genotype is more widely in Chinese people aged 65 years or older in the rural area.

Objective To explore the effects of a single bout of aerobic exercise on oxidative stress and total peripheral vascular resistance. Methods 36 prehypertensive patients were divided into aerobic exercise group (n=18) and control group (n=18). The aerobic exercise group performed cycle ergometry at 70% maximal oxygen consumption for 30 min. Total peripheral vascular resistance (TPVR), malondialdehyde (MDA), mean arterial pressure (MAP), vitamin C (VC) and vitamin E (VE) were measured before, immediately, 1 hour and 2 hours after the aerobic exercise. Results There was no significant difference in TPVR, MDA, MAP, VC and VE between two groups before exercise (P>0.05). TPVR was all significantly lower in the aerobic exercise group than in the control group immediately, 1 hour and 2 hours after exercise (P<0.001), and showed a rising trend of recovery. MDA was significantly higher in the aerobic exercise group than in the control group 1 hour and 2 hours after exercise (P<0.05), however there was no significant difference in MDA between two groups immediately after exercise (P>0.05). MAP was significantly lower immediately after exercise in the aerobic exercise group than in the control group (P< 0.001), but there was no significant 1 hour and 2 hours after exercise (P>0.05). There was no significant difference in VC and VE between two groups immediately, 1 hour and 2 hours after exercise (P>0.05). Conclusion The level of oxidative stress increases after a single bout of aerobic exercise, and the TPVR decreases.

Community rehabilitation of cardiovascular disease is of great significance. Exercise therapy of cardiovascular disease in communities is necessary and feasible. At present, the main problems China faced to carry out community exercise therapy of cardiovascular disease include: cardiovascular patients with a weak sense of community exercise therapy, lack of professional rehabilitation personnel, inadequate community-based exercise therapy practice and lack of community rehabilitation funding. To solve above problems, we should strengthen the community exercise therapy practice of cardiovascular disease, and promote the cooperation between community rehabilitation and hospital rehabilitation. In all, comprehensive efforts should be made in order to solve the problems.

OBJECTIVE: To investigate the expression of hyperpolarization-activated cyclic nucleotide-gated cation channel 4 (HCN4) and connexin43 (Cx43) in the sinoatrial node of electric shock death. METHODS: As experimental group, 34 cases of electric shock death who had definite current mark evidence were selected from pathology department of Xuzhou Medical College from 2010 to 2013. As the control group, 20 cases of fatal severe craniocerebral injury in traffic accidents were chosen. The expressions of HCN4 and Cx43 in the sinoatrial node were observed by immunohistochemical technology. RESULTS: HCN4 positive cells expressed in the cell membrane and cytoplasm of the sinoatrial node. Cx43 positive cells expressed in the cell membrane and cytoplasm of T cells and myocardial cells. The expression of HCN4 was significantly higher than that of the control group (P < 0.05) and the expression of Cx43 was significantly lower than that of the control group (P < 0.05). CONCLUSION The changes of HCN4 and Cx43 expressions in the sinoatrial node illustrate electric shock death might be related to the abnormalities of cardiac electrophysiology and conduction.
Connexin 43/metabolism* ; Cyclic Nucleotide-Gated Cation Channels ; Heart Rate ; Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels/metabolism* ; Immunohistochemistry/methods* ; Myocardium/metabolism* ; Myocytes, Cardiac ; Sinoatrial Node/physiopathology*

The aim of the present study was to evaluate the effect of storage conditions,pretreatment,temperature,time and excystation solutions on in vitro excystation of Cryptosporidium oocyst.Cryptosporidium andersoni oocyst was used as a model and the results showed that 0.5% sodium hypochlorite could enhance the excystation rates.But there was no significant difference compared with oocysts untreated by sodium hypochlorite(P＞0.05).0.75% synthetic sodium taurocholate and 1% bile solution could urge the excystation of oocysts,which were significantly different compared with the excystation rate of oocysts in 0.25% trypsin solution or in PBS(P<0.05).The excystation rates of oocysts in acidic water (pH =3) were similar with the rates in PBS (pH =7.2) but significantly different from the rates in alkaline water (pH =9) (P<0.01).Additionally,the excystation rate of oocysts in water of 24℃ was significantly lower than in water of 37℃(P<0.01),and the excystation rate of oocysts raised gradually at 37℃ with the passage of time.It's concluded that temperature,acidity and excystation solution were vital factors for the in vitro excystation of Cryptosporidium oocyst.A higher excystation rate could be observed when oocysts were pretreated with 0.5% sodium hypochlorite and treated with 0.75% synthetic sodium taurocholate at 37℃ for 3 hours.

Objective To evaluate the overall effect of transsphenoidal microsuegery for 23 patients with non-adenomas disease intrasellar region.Methods A toal of 23 patients with non-adenomas disease in- trasellar region,7 cases of Rathke's cleft cyst,3 cases of craniopharyngiomas,2 cases of meningiomas,2 ca- ses of pituitary tuberculous granuloma,5 cases of pituitary abscess,2 cases of empty sella,2 cases of chord- mas,were treated via sublabio-septo-sphenoidal microsurgery.Results There were among the 23 patients, groos total removal of the disease were achieved in 14 cases,subtotal removal in 7 cases,and partial removal in remain 2 cases.Diminished visual activity and visual field defects were improved in 13 cases.Menstrual disorder in all female cases and sexual disturbance in male were improved.There was no death in group. Conclusion Microsurgical technique via transsphenoidal approach is a safe and effective one for the treatment of patients with non-adenomas disease intrasellar region.

Background Aneurysmal bone cyst (ABC) is a benign lesion with the potential to be locally aggressive.The optimal treatment of cervical spine lesions remains controversial.This retrospective study was designed to evaluate the different treatments for primary ABCs of the cervical spine.Methods This series included eight men and six women diagnosed between 2002 and 2012.A retrospective review of the hospital charts,operating room reports,office charts,and radiographs was performed.The data collected included patient age,sex,radiological features,pathology,treatment method,outcomes,and complications from biopsies and treatments.The mean age at diagnosis was 17.5 years old with a range of 6-35 years.All patients had experienced local pain for a mean of 7.3 months (range,0.5-18.0 months),and three patients had neurological deficits (one with radiculopathy and two with myelopathy).The Frankel classification before treatment was E in 12 cases,D in one case,and C in one case.Results Four patients received radiotherapy alone.Ten patients underwent surgery,including five total spondyiectomies,two local resections,and three curettages.Three patients received preoperative selective arterial embolization,and four received adjuvant radiotherapy.The mean follow-up time was 44.5 months (range 12-96 months),and no recurrence was identified.Three patients with neurological deficits achieved complete recovery,as noted at the final follow-up examination.One patient received radiotherapy without appropriate immobilization as prescribed and developed C1-C2 subluxation with severe spinal cord compression but without myelopathy.He refused further treatment.Conclusions The results can be achieved by different treatments (surgical resection/curettage,selective arterial embolization,and radiotherapy) for ABC of the cervical spine.Reconstruction of stability is also important for the treatment of cervical ABC.

OBJECTIVETo study the clinical features and prognosis of benign infantile convulsions associated with mild gastroenteritis (BICE).

METHODSA retrospective analysis was performed for the clinical data of 436 children with BICE, and among these children, 206 were followed up for 1.5 to 7 years. Some parents were invited to complete the Weiss Functional Defect Scale to evaluate the long-term social function.

RESULTSThe peak age of onset of BICE was 13-24 months, and BICE had a higher prevalence rate in September to February of the following year. Convulsions mainly manifested as generalized tonic-clonic seizures, which often occurred within 24 hours after disease onset and lasted for less than 5 minutes each time. Sometimes they occurred in clusters. During the follow-up of 206 children, only one had epileptiform discharge, and the other children had normal electroencephalographic results. The parents of all the 206 children thought their children had normal intelligence and had no marked changes in character. Based on the Weiss Functional Defect Scale completed by the parents of some BICE children, there was no significant difference in the long-term social function between BICE children and healthy children matched by age and sex.

CONCLUSIONSBICE mainly occurs in children aged 1-2 years, with the manifestation of transient generalized seizures in most children and cluster seizures in some children. BICE seldom progresses to epilepsy and has good prognosis.

Child, Preschool ; Electroencephalography ; Epilepsy, Benign Neonatal ; diagnosis ; drug therapy ; etiology ; Female ; Follow-Up Studies ; Gastroenteritis ; diagnosis ; drug therapy ; etiology ; Humans ; Infant ; Male ; Prognosis ; Retrospective Studies

Objective To investigate the damage mechanism of typeⅡalveolar epithelial cells (AECⅡ) after hyperoxia exposure by proteomics. Methods The primary AECⅡ of preterm Sprague-Dawley (SD) rats were divided into normoxia and hyperoxia groups, and cultured in room air (21% O2) or hyperoxia (95% O2) condition, respectively. The cell morphology change was observed under an inverted contrast microscope; the protein expressions of Bcl-2 and caspase-3 were detected by Western Blot to ensure a successful model. Total protein in AECⅡ was collected, and mass spectrometry-based tandem mass tag (TMT)-labeled quantitative proteomics were used to detect the change of protein profile. Proteins with changes greater than 1.5-fold and P < 0.05 were considered differentially expressed, and bioinformatics analysis was performed. According to the proteomic results, AECⅡ were divided into three groups:normoxia group, hyperoxia group and hyperoxia+MW167 group (γ-secretase inhibitor MW167 was added to culture medium 30 minutes before they were placed into the chamber). The cell viability was detected by the cell proliferation and toxicity kit (CCK-8), and the expressions of Hes1, Bax mRNA were detected by real-time fluorescence quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Results ① The cells in the normoxia group proliferated and prolonged significantly, and the cytoplasmic particulate matter was abundant. In the hyperoxia group, nucleus pyknosis and cytoplasmic particulate matter decreased significantly. Compared with the normoxia group, the expression of caspase-3 in the hyperoxia group was significantly increased, and the expression of Bcl-2 was significantly decreased (caspase-3/GAPDH: 1.352±0.086 vs. 0.769±0.080, Bcl-2/GAPDH: 0.614±0.060 vs. 1.361±0.078, both P < 0.01).② A total of 162 differentially expressed proteins were identified between normoxia and hyperoxia groups, the proteins up-regulated by hyperoxia were commonly associated with response processes to various stimuli, and located in the extracellular region; the proteins down-regulated by hyperoxia were commonly associated with synthesis of substances, and located in the cellular matrix. KEGG Pathway analyses suggested that metabolism by cytochrome P450, oxidative phosphorylation, and Notch signaling pathway were associated with the mechanism of hyperoxia injury on AECⅡ.③Compared with the normoxia group, the viability of cells in the hyperoxia group was significantly decreased, and the expressions of Hes1 and Bax mRNA were significantly increased [cell viability (A value): 0.060±0.003 vs. 1.058± 0.017, Hes1 mRNA (2-ΔΔCt): 2.235±0.606 vs. 1.144±0.107, Bax mRNA (2-ΔΔCt): 2.210±0.240 vs. 1.084±0.096, all P < 0.05]. Compared with the hyperoxia group, the viability of cells in the hyperoxia+MW167 group was significantly increased, and the expressions of Hes1 and Bax mRNA were significantly decreased [cell viability (A value): 0.271±0.025 vs. 0.060±0.003, Hes1 mRNA (2-ΔΔCt): 0.489±0.046 vs. 2.235±0.606, Bax mRNA (2-ΔΔCt): 1.289±0.041 vs. 2.210±0.240, all P < 0.05]. Conclusion The mechanism of hyperoxia injury on AECⅡ may be related to the metabolism by cytochrome P450, oxidative phosphorylation and activation of Notch signaling pathway.