• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.17.2024.tde-12042024-105637
Document
Author
Full name
Fabiana Tannihão Folconi
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2023
Supervisor
Committee
Freitas, Maria Cristina Foss de (President)
Feitosa, Nathalie Lôbo de Figueiredo
Jordao Junior, Alceu Afonso
Sartori, Daniela Carlos
 
Title in Portuguese
Avaliação do efeito do consumo de Bifidobacterium animalis lactis HN019 no controle metabólico, microbiota intestinal e na resposta imunológica de indivíduos com diabetes tipo 2
Keywords in Portuguese
Diabetes tipo 2
Microbiota intestinal
Probióticos
Abstract in Portuguese
O diabetes mellitus é um distúrbio metabólico crônico caracterizado por hiperglicemia. Estudos vêm demonstrando uma relação importante entre o desenvolvimento de diabetes tipo 2 (DM2) e a microbiota intestinal. A microbiota é um ecossistema complexo e abundante, composto por microrganismos que vivem de forma simbiótica no trato gastrointestinal humano. A eubiose perturbada dos filos de bactérias desencadeia respostas inflamatórias subsequentes características do DM2. A suplementação com probiótico tem apresentado efeitos benéficos sobre parâmetros metabólicos em indivíduos com DM2. Portanto, objetivou-se avaliar o efeito do consumo de Bifidobacterium animalis lactis HN019 (B. lactis HN019) no controle metabólico, microbiota intestinal e resposta imunológica de indivíduos com DM2. Oito indivíduos com DM2 receberam B. lactis HN019 ou placebo por 12 semanas. Amostras de sangue foram coletadas para avaliar perfil glicêmico e lipídico, e também para determinação da resposta imunológico por meio das citocinas TNF-α, IL-6, IL-10 e IFN-γ. Amostras de fezes foram utilizadas para determinação da abundância relativa de gêneros bacterianos dos filos Firmicutes, Bacteroidetes, Actinobacteria, Proteobacteria e Verrucomicrobia. O consumo do probiótico B. lactis HN019 por indivíduos com DM2 durante 12 semanas foi capaz de reduzir os níveis da citocina IFN-γ, associado a um aumento de bactérias do filo Verrucomicrobia e Firmicutes. Além de ter sido observada uma redução de aproximadamente 11% do teor de carboidratos em relação ao valor calórico total diário. São necessárias mais pesquisas, a fim de aumentar o tamanho da amostra para que forneçam evidências mais fortes em relação ao consumo de probióticos em condições de diabetes.
 
Title in English
Evaluation of the effect of consuming Bifidobacterium animalis lactis HN019 on metabolic control, intestinal microbiota and immunological response in individuals with type 2 diabetes
Keywords in English
Intestinal microbiota
Probiotics
Type 2 diabetes
Abstract in English
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. Studies have demonstrated an important relationship between the development of type 2 diabetes (T2D) and the intestinal microbiota. The microbiota is a complex and abundant ecosystem, composed of microorganisms that live symbiotically in the human gastrointestinal tract. Disturbed eubiosis of bacterial phyla triggers subsequent inflammatory responses characteristic of T2D. Probiotic supplementation has shown beneficial effects on metabolic parameters in individuals with T2D. Therefore, the objective was to evaluate the effect of consuming Bifidobacterium animalis lactis HN019 (B. lactis HN019) on metabolic control, intestinal microbiota and immunological response in individuals with T2D. Eight subjects with T2D received B. lactis HN019 or placebo for 12 weeks. Blood samples were collected to evaluate the glycemic and lipid profile, and also to determine the immunological response through the cytokines TNF-α, IL-6, IL-10 and IFN-γ. Stool samples were used to determine the relative abundance of bacterial genera from the phyla Firmicutes, Bacteroidetes, Actinobacteria, Proteobacteria and Verrucomicrobia. Consumption of the probiotic B. lactis HN019 by individuals with T2D for 12 weeks was able to reduce levels of the cytokine IFN-γ, associated with an increase in bacteria from the Verrucomicrobia and Firmicutes phylum. In addition, a reduction of approximately 11% in carbohydrate content was observed in relation to the total daily caloric value. More research is needed in order to increase the sample size to provide stronger evidence regarding the consumption of probiotics in diabetic conditions.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2024-07-11
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors.
CeTI-SC/STI
© 2001-2024. Digital Library of Theses and Dissertations of USP.