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Diabetic neuropathy: An evaluation of the use of quercetin in the cecum of rats

World Journal of Gastroenterology 2013年第38期19卷 6416-6426页

作者： paulo emilio botura ferreira Cláudia Regina Pinheiro Lopes Angela Maria Pereira Alves der paulo Belato Alves David Robert Linden Jacqueline Nelisis Zanoni Nilza Cristina Buttow Department of Morphological Sciences Universidade Estadual de MaringáMaringáPR. CEP 87020-900Brazil Department of Physiology and Biomedical Engineering and Enteric NeuroScience Program Mayo Clinic College of MedicineRochesterMN 55905United States

AIM:To investigate the effect of quercetin supplementation on the myenteric neurons and glia in the cecum of diabetic ***:Total preparations of the muscular tunic were prepared from the ceca of twenty-four rats divided into the following groups:control(C),control supplemented with quercetin(200 mg/kg quercetin body weight)(CQ),diabetic(D)and diabetic supplemented with quercetin(DQ).Immunohistochemical double staining technique was performed with HuC/D(general population)/nitric oxide synthase(nNOS),HuC-D/S-100and *** analysis of the general neuronal population HuC/D-IR,the nNOS-IR(nitrergic subpopulation)and the enteric glial cells(S-100)was performed,and the morphometry and the reduction in varicosity population(VIP-IR)in these populations were ***:Diabetes promoted a significant reduction(25%)in the neuronal density of the HuC/D-IR(general population)and the nNOS-IR(nitrergic subpopulation)compared with the C *** also significantly increased the areas of neurons,glial cells and VIP-IR *** with quercetin in the DQ group prevented neuronal loss in the general population and increased its area(P<0.001)and the area of nitrergic subpopulation(P<0.001),when compared to C *** induced a VIP-IR and glial cells areas(P<0.001)in DQ group when compared to C,CQ and D ***:In diabetes,quercetin exhibited a neuroprotective effect by maintaining the density of the general neuronal population but did not affect the density of the nNOS subpopulation.

关键词： Diabetes Myenteric plexus Neuroprotection Neuronal nitric oxide synthase Vasoactive intestinal polypeptide Enteric glia

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Evaluating seroprevalence to circumsporozoite protein to estimate exposure to three species of Plasmodium in the Brazilian Amazon

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Infectious Diseases of Poverty 2018年第1期7卷 448-459页

作者： Virginia Araujo Pereira Juan Camilo Sanchez-Arcila Mariana Pinheiro Alves Vasconcelos Amanda Ribeiro ferreira Lorene de Souza Videira Antonio Teva Daiana Perce-da-Silva Maria Teresa Queiroz Marques Luzia Helena de Carvalho Dalma Maria Banic Luiz Cristovao Sobrino Porto Joseli Oliveira-ferreira Laboratory of Immunoparasitology Oswaldo Cruz Institute/FiocruzAv.Brasil 4365ManguinhosRio de JaneiroBrazil Institute of Infectology emilio Ribas São PauloSao PauloBrazil Laboratory of Immunodiagnosis Departament of Biological SciencesNational School of Public Health/FiocruzRio de JaneiroBrazil Laboratory of Clinical Immunology Oswaldo Cruz Institute/FiocruzRio de JaneiroBrazil Laboratory of Histocompatibility and Cryopreservation–HLA of DHE/IBRAG/UERJ Rio de JaneiroBrazil Molecular Biology and Malaria Immunology Research Group Centro de Pesquisas Rene Rachou/FiocruzBelo HorizonteMinas GeraisBrazil

Background:Brazil has seen a great decline in malaria and the country is moving towards ***,for eventual elimination,the control program needs efficient tools in order to monitor malaria exposure and *** this study,we aimed to evaluate whether seroprevalence to the circumsporozoite protein(CSP)is a good tool for monitoring the exposure to and/or evaluating the burden and distribution of Plasmodium species in the Brazilian ***:Cross-sectional surveys were conducted in a rural area of Porto Velho,Rondônia *** infection was detected by microscopy and polymerase chain *** to the sporozoite CSP repeats of Plasmodium vivax,***,and ***(PvCS,PfCS,and PmCS)were detected using the enzyme-linked immunosorbent assay *** leukocyte antigen(HLA)-DRB1 and DQB1 genes were typed using Luminex®xMAP®***:The prevalence of immunoglobulin G against *** CSP peptide(62%)was higher than ***(49%)and ***(46%)CSP *** of the studied individuals had antibodies to at least one of the three peptides(72%),34%had antibodies to all three peptides and 28%were *** the majority of the population was not infected at the time of the survey,74.3%of parasite-negative individuals had antibodies to at least one of the ***,among individuals carrying the haplotypes DRB1*04~DQB1*03,there was a significantly higher frequency of PfCS responders,and DRB1*16~DQB1*03 haplotype for PvCS and PfCS *** contrast,HLA-DRB1*01 and HLA-DQB1*05 allelic groups were associated with a lack of antibodies to *** and *** CSP repeats,and the haplotype DRB1*01~DQB1*05 was also associated with non-responders,including non-responders to ***:Our results show that in low transmission settings,naturally acquired antibody responses against the CSP repeats of ***,***,and *** in a single cross-sectional study may n

关键词： Malaria Circumsporozoite protein Serological marker Human leucocyte antigen IgG antibody Porto Velho Rondônia Brazil

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