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Development of hepatorenal syndrome in bile duct ligated rats 被引量:3
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作者 Regina M Pereira Robson AS dos Santos +7 位作者 Eduardo A Oliveira Virgínia HR Leite Filipi LC Dias Alysson S Rezende Lincoln P Costa Lucíola S Barcelos Mauro M Teixeira Ana Cristina Sim■es e Silva 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第28期4505-4511,共7页
AIM: To evaluate in bile duct ligated rats whether there were progressive alterations of renal function without changes in histopathology. METHODS: Male Wistar rats were submitted to sham-surgery or bile duct ligation... AIM: To evaluate in bile duct ligated rats whether there were progressive alterations of renal function without changes in histopathology. METHODS: Male Wistar rats were submitted to sham-surgery or bile duct ligation (BDL) and divided according to the post-procedure time (2, 4 and 6-wk). To determine renal function parameters, rats wereplaced in metabolic cages and, at the end of the experiment, blood and urine samples were obtained. Histology and hydroxyproline content were analyzed in liver and renal tissue. RESULTS: Rats with 2 wk of BDL increased free water clearance (P = 0.02), reduced urinary osmolality (P = 0.03) and serum creatinine (P = 0.01) in comparison to the sham group. In contrast, rats at 6 wk of BDL showed features of HRS, including signif icant increase in serum creatinine and reductions in creatinine clearance, water excretion and urinary sodium concentration. Rats with 4 wk of BDL exhibited an intermediate stage of renal dysfunction. Progressive hepatic f ibrosis according to post-procedure time was confirmed by histology. The increased levels of liver hydroxyproline contrasted with the absence of structural changes in the kidney, as assessed by histology and unchanged hydroxyproline content in renal tissue. CONCLUSION: Our data show that BDL produced progressive renal dysfunction without structural changes in the kidney, characterizing HRS. The present model will be useful to understand the pathophysiology of HRS. 展开更多
关键词 Hepatorenal syndrome Bile duct ligation Renal function Renin angiotensin system
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Pediatric functional constipation treatment with Bifi dobacterium-containing yogurt:A crossover,double-blind,controlled trial 被引量:25
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作者 Paula VP Guerra Luiza N Lima +5 位作者 Tassia C Souza Vanessa Mazochi Francisco J Penna Andreia M Silva Jacques R Nicoli Elizabet V Guimares 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第34期3916-3921,共6页
AIM: To evaluate the treatment of pediatric functional chronic intestinal constipation (FCIC) with a probiotic goat yogurt. METHODS: A crossover double-blind formula-controlled trial was carried out on 59 students (ag... AIM: To evaluate the treatment of pediatric functional chronic intestinal constipation (FCIC) with a probiotic goat yogurt. METHODS: A crossover double-blind formula-controlled trial was carried out on 59 students (age range: 5-15 years) of a public school in Belo Horizonte, MG, Brazil, presenting a FCIC diagnostic, according to Roma Ⅲ criteria. The students were randomized in two groups to receive a goat yogurt supplemented with 109 colony forming unit/mL Bifidobacterium longum (B.longum) (probiotic) daily or only the yogurt for a period of 5 wk (formula). Afterwards, the groups were intercrossed for another 5 wk. Defecation frequency, stool consistency and abdominal and defecation pain were assessed.RESULTS: Both treatment groups demonstrated improvement in defecation frequency compared to baseline. However, the group treated with probiotic showed most signif icant improvement in the f irst phase of the study. An inversion was observed after crossing over, resulting in a reduction in stool frequency when this group was treated by formula. Probiotic and formula improved stool consistency in the f irst phase of treatment, but the improvement obtained with probiotic was significantly higher (P = 0.03). In the second phase of treatment, the group initially treated with probiotic showed worseningstool consistency when using formula. However, the difference was not signif icant. A signif icant improvement in abdominal pain and defecation pain was observed with both probiotic and formula in the first phase of treatment, but again the improvement was more signif icant for the group treated with B. longum during phase I (P < 0.05). When all data of the crossover study were analyzed, significant differences were observed between probiotic yogurt and yogurt only for defecation frequency (P = 0.012), defecation pain (P = 0.046) and abdominal pain (P = 0.015). 展开更多
关键词 Functional chronic constipation Probiotic Bifi dobacterium longum Yogurt Adolescents Children
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Effect of propranolol on the splanchnic and peripheral renin angiotensin system in cirrhotic patients 被引量:2
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作者 Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr +5 位作者 Renata da Cunha Ribeiro Renata Lúcia Pereira Vieira Jerusa Almeida Ana Paula Nadu Ana Cristina Sim■es e Silva Robson Augusto Souza Santos 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第44期6824-6830,共7页
AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propran... AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propranolol pre-treatment or not. METHODS:Patients were allocated into two groups:outpatients with advanced liver disease(LD) and during liver transplantation(LT). Both groups were subdivided according to treatment with propranolol or not. Plasma was collected through peripheral venipuncture to determine plasma renin activity(PRA),Angiotensin(Ang) Ⅰ,Ang Ⅱ,and Ang-(1-7) levels by radioimmunoassay in LD group. During liver transplantation,hemodynamic parameters were determined and blood samples were obtained from the portal vein to measure renin angiotensin system(RAS) components.RESULTS:PRA,Ang Ⅰ,Ang Ⅱ and Ang-(1-7) were signifi cantly lower in the portal vein and periphery in all subgroups treated with propranolol as compared to non-treated. The relationships between Ang-(1-7) and Ang Ⅰ levels and between Ang Ⅱ and Ang Ⅰ were significantly increased in LD group receiving propranolol. The ratio between Ang-(1-7) and Ang Ⅱ remained unchanged in splanchnic and peripheral circulation in patients under β-blockade,whereas the relationship between Ang Ⅱ and Ang Ⅰ was significantly increased in splanchnic circulation of LT patients treated with propranolol. During liver transplantation,cardiac output and index as well systemic vascular resistance and index were reduced in propranolol-treated subgroup. CONCLUSION:In LD group,propranolol treatment reduced RAS mediators,but did not change the ratio between Ang-(1-7) and Ang Ⅱ in splanchnic and peripheral circulation. Furthermore,the modification of hemodynamic parameters in propranolol treated patients was not associated with changes in the angiotensin ratio. 展开更多
关键词 β-blockade CIRRHOSIS Renin angiotensinsystem Angiotensin-(1-7)
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Performance of a serological IgM and IgG qualitative test for COVID-19 diagnosis:An experimental study in Brazil
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作者 Fabrício Freire de Melo Lilian Martins Oliveira Diniz +8 位作者 JoséNélio Januário João Fernando Gonçalves Ferreira Rafael Santos Dantas Miranda Dórea Breno Bittencourt de Brito Hanna Santos Marques Fabian Fellipe Bueno Lemos Marcel Silva Luz Samuel Luca Rocha Pinheiro Dulciene Maria de Magalhães Queiroz 《World Journal of Experimental Medicine》 2022年第5期100-103,共4页
Qualitative antibody tests are an easy,point-of-care diagnostic method that is useful in diagnosing coronavirus disease 2019,especially in situations where reverse transcription-polymerase chain reaction is negative.H... Qualitative antibody tests are an easy,point-of-care diagnostic method that is useful in diagnosing coronavirus disease 2019,especially in situations where reverse transcription-polymerase chain reaction is negative.However,some factors are able to affect its sensitivity and accuracy,which may contribute to these tests not being used as a first-line diagnostic tool. 展开更多
关键词 Serological test IGM IGG COVID-19 DIAGNOSIS ANTIBODY
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Correction to“Performance of a serological IgM and IgG qualitative test for COVID-19 diagnosis:An experimental study in Brazil”
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作者 Fabrício Freire de Melo Lilian Martins Oliveira Diniz +9 位作者 JoséNélio Januário João Fernando Gonçalves Ferreira Rafael Santos Dantas Miranda Dórea Breno Bittencourt de Brito Hanna Santos Marques Fabian Fellipe Bueno Lemos Marcel Silva Luz Samuel Luca Rocha Pinheiro Gifone Aguiar Rocha Dulciene Maria de Magalhães Queiroz 《World Journal of Experimental Medicine》 2023年第3期47-49,共3页
Correction to“Freire de Melo F,Martins Oliveira Diniz L,Nélio Januário J,Fernando Gonçalves Ferreira J,Dórea RSDM,de Brito BB,Marques HS,Lemos FFB,Silva Luz M,Rocha Pinheiro SL,de Magalhães Q... Correction to“Freire de Melo F,Martins Oliveira Diniz L,Nélio Januário J,Fernando Gonçalves Ferreira J,Dórea RSDM,de Brito BB,Marques HS,Lemos FFB,Silva Luz M,Rocha Pinheiro SL,de Magalhães Queiroz DM.Performance of a serological IgM and IgG qualitative test for COVID-19 diagnosis:An experimental study in Brazil.World J Exp Med 2022;12(5):100-103[PMID:36196438 DOI:10.5493/wjem.v12.i5.100]”.In this article,we identified an issue with the“Acknowledgments”section.Here,we then provide a recognition section for our supporting institutions. 展开更多
关键词 CORRECTION COVID-19 serological testing Serologic tests Rapid diagnostic
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儿童期高血压患者的肾素血管紧张素系统:原发性高血压中血管紧张素-(1-7)选择性增加
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作者 Silva A.C.S.E. Diniz J.S.S. +2 位作者 Regueira Filho A. Santos R.A.S. 贺莉 《世界核心医学期刊文摘(儿科学分册)》 2005年第1期36-36,共1页
目的:笔者检测了血压正常的孩子和高血压患儿的肾素-血管紧张素系统(RAS)的活性。试验设计:让27 例高血压患儿(12例肾血管性高血压患儿和15例原发性高血压患儿)和32例血压正常的儿童在一个儿科肾脏病学中心接受检查。血浆肾素活性(PRA)... 目的:笔者检测了血压正常的孩子和高血压患儿的肾素-血管紧张素系统(RAS)的活性。试验设计:让27 例高血压患儿(12例肾血管性高血压患儿和15例原发性高血压患儿)和32例血压正常的儿童在一个儿科肾脏病学中心接受检查。血浆肾素活性(PRA)和血管紧张素的肽类血液样本在血压正常的孩子测量1次,高血压患儿治疗前后各测量1次。血浆的萃取是使用联合萃取滤过器(国际通用化学分析法,港口城市,加里福利亚), 肽类浓缩则是用放射免疫测定(RIA)来测定的。结果: PRA,血管紧张素Ⅰ(Ang Ⅰ),血管紧张素Ⅱ(AngⅡ)和血管紧张素-1-7[Ang-(1-7) 展开更多
关键词 原发性高血压 血管紧张素 肾血管性高血压 血浆肾素活性 化学分析法 放射免疫测定 血液样本 肾脏病学 滤过器 加里
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Individual factors related to chronic condition in Portuguese adolescents: Highlights from the HBSC/WHO study
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作者 Teresa Santos Margarida Gaspar de Matos +2 位作者 Maria Celeste Simoes Helena Fonseca Maria do Ceu Machado 《Health》 2013年第11期25-34,共10页
Background: Adolescence includes a period (10 to 19 years) of profound biopsychosocial changes, constituting potentially difficult challenges, which may become more pronounced in the presence of a chronic condition an... Background: Adolescence includes a period (10 to 19 years) of profound biopsychosocial changes, constituting potentially difficult challenges, which may become more pronounced in the presence of a chronic condition and its limitations. Responses are not homogeneous and can be quite variable, depending on various specific individual factors. Research comparing adolescents with or without chronic illness, or comparing across different conditions, has been contradictory, not confirming a direct relationship between the degree of suffering and the chronic condition. Objective: To characterize and assess the impact of 1) having a chronic condition (CC) and 2) how CC affects school participation;and its association with life satisfaction and perception of wellness, controlling for demographic factors: age, gender and family socioeconomic status (SES). Methods: 5050 Portuguese adolescents with an average age of 14 years participated in the Health Behaviour in School-aged Children/WHO (HBSC). Results: The majority of the adolescents with CC reported that their conditions did not affect school participation. Adolescents with CC who indicated that CC affected school participation felt more frequently unwell and presented lower life satisfaction. Being a boy, younger and having high family socio economic status (SES) were identified as predictors of higher life satisfaction;on the other hand, being a girl, older, having lower SES, living with CC and feeling that CC affects school participation are predictors for feeling more frequently unwell. Conclusions: These adolescents showed an increased vulnerability, presenting internalized symptoms and lower life satisfaction. Furthermore, when there was simultaneous occurrence of living with CC and that CC affected school participation, the impact was even higher. Thus, it is crucial that future interventions should include the identified predictors, combined with “listen to the voice” of adolescents, throughout the adaptation process. 展开更多
关键词 Adolescent Health Chronic Condition Health Promotion and Prevention Quality of Life
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