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J Bras Nefrol
2020 Mar 01; doi: 10.1590/2175-8239-JBN-2019-0051.
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Irisin and troponin I expression in dialysis patients submitted to remote ischemic preconditioning: a pilot study.
Gehrke FS
,
Gouveia MC
,
Barbosa CGM
,
Murad N
,
Reis BDCAA
,
Fonseca FLA
,
Pereira EC
,
Bacci MR
.
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BACKGROUND: Renal replacement therapy continues to be related to high hospitalization rates and poor quality of life. All-cause morbidity and mortality in renal replacement therapy in greater than 20% per year, being 44 times greater when diabetes is present, and over 10 times that of the general population. Regardless of treatment, the 5-year survival is 40%, surpassing many types of cancers. Irisin is a hormone that converts white adipose tissue into beige adipose tissue, aggregating positive effects like fat mass control, glucose tolerance, insulin resistance, prevention of muscle loss, and reduction in systemic inflammation.
OBJECTIVES: To determine the serum levels of troponin I in hemodialysis patients submitted to remote ischemic preconditioning (RIPC) associated with irisin expression.
METHODS: This was a prospective, randomized, double-blind clinical trial with patients with chronic kidney disease submitted to hemodialysis for a 6-month period. Troponin I, IL-6, urea, TNF-α, and creatinine levels were determined from blood samples. The expressions of irisin, thioredoxin, Nf-kb, GPX4, selenoprotein and GADPH were also evaluated by RT-PCR.
RESULTS: Samples from 14 hypertensive patients were analyzed, 9 (64.3%) of whom were type 2 diabetics, aged 44-64 years, and 50% of each sex. The difference between pre- and post-intervention levels of troponin I was not significant. No differences were verified between the RIPC and control groups, except for IL-6, although a significant correlation was observed between irisin and troponin I.
CONCLUSION: Remote ischemic preconditioning did not modify irisin or troponin I expression, independent of the time of collection.
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