Klotho deficiency aggravates sepsis-related multiple organ dysfunction

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art_JORGE_Klotho_deficiency_aggravates_sepsisrelated_multiple_organ_dysfunction_2019.PDF (2.06 MB)
Citações na Scopus
21
Tipo de produção
article
Data de publicação
2019
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
AMER PHYSIOLOGICAL SOC
Autores
SANTOS, Fernando dos
LIMA, Larissa de Sa
SCAVONE, Cristoforo
KURO-O, Makoto
Citação
AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY, v.316, n.3, p.F438-F448, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Sepsis-induced organ failure is characterized by a massive inflammatory response and oxidative stress. Acute kidney injury (AKI) occurs in approximately half of patients in septic shock, and the mortality associated with sepsis-induced AKI is unacceptably high. Klotho is a protein expressed by renal cells and has anti-senescence properties. Klotho has also been shown to protect the kidneys in ischemia-reperfusion injury and to have antioxidant properties. To analyze the role of Klotho in sepsis-related organ dysfunction and AKI, we used a cecal ligation and puncture (CLP) model of sepsis in heterozygous Klotho-haploinsufficient mice and their wild-type littermates (CLP-Kl/+ and CLP-WT mice, respectively). In comparison with the CLP-WT mice, CLP-Kl/+ mice showed lower survival, impaired renal function, impaired hepatic function, greater oxidative stress, upregulation of inflammatory pathways (at the systemic and kidney tissue levels), and increased NF-KB activation. It is noteworthy that CLP-Kl/+ mice also showed lower heart-rate variability, less sympathetic activity, impaired baroreflex sensitivity to sodium nitroprussidc, and a blunted blood pressure response to phenylephrine. We also demonstrated that sepsis creates a state of acute Klotho deficiency. Given that low Klotho expression exacerbates sepsis and multiple organ dysfunction. Klotho might play a protective role in sepsis, especially in elderly individuals in whom Klotho expression is naturally reduced.
Palavras-chave
acute kidney injury, autonomic disorder, Klotho, multiple organ dysfunction, sepsis
URI
https://observatorio.fm.usp.br/handle/OPI/31828
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MPT
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/12
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