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June 7, 2026Diabetes

Microbiota depletion with antibiotics negated the metabolic benefits of cardiac mitochondrial Akt1 activation, resulting in 7% higher body fat mass compared to controls.

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Why the study?

Does gut microbiota depletion with broad-spectrum antibiotics negate the metabolic benefits of cardiac mitochondrial Akt1 activation in a mouse model of diet-induced diabetic cardiomyopathy?

Population

Inducible myocardium-specific transgenic mouse model harboring a mitochondria-targeting constitutively…

Comparison

Broad-spectrum antibiotics to deplete gut… vs Non-induced vehicle injected CAMCAKT mice and…

Design

Preclinical

Follow-up

2 months

Key result

Microbiota depletion with antibiotics negated the metabolic benefits of cardiac mitochondrial Akt1 activation, resulting in 7% higher body fat mass compared to controls.

Authors

APAdrija PathakATALBERT TARJROBERT JENQ

Discussion

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Overview

Gut microbiota depletion negates the metabolic and hepatoprotective benefits of cardiac mitochondrial Akt1 activation in a mouse model of diet-induced diabetic cardiomyopathy.

Key Points

  • This research aims to determine if gut microbiota mediates the metabolic benefits from cardiac mitochondrial Akt1 activation.
  • Used inducible myocardium-specific transgenic mouse model with activated Akt1.
  • Administered broad-spectrum antibiotics to some mice during high fat-high fructose diet feeding.
  • Compared body fat and liver composition between treated and control mice.
  • Antibiotic-treated CAMCAKT mice had 7% higher body fat mass compared to controls after 2 months on diet.
  • Untreated CAMCAKT mice showed an 8% lower body fat mass compared to controls.
  • Gut microbiota depletion reversed the metabolic benefits including improvements in fatty liver and body composition.

Structured PICO

Does gut microbiota depletion with broad-spectrum antibiotics negate the metabolic benefits of cardiac mitochondrial Akt1 activation in a mouse model of diet-induced diabetic cardiomyopathy?

P
Population
Inducible myocardium-specific transgenic mouse model (CAMCAKT) fed a high fat-high fructose diet for 2 months to assess the role of gut microbiota.
I
Intervention
Broad-spectrum antibiotics (Ampicillin and Enrofloxacin) to deplete gut microbiota
C
Comparator
Non-induced vehicle injected CAMCAKT mice (controls) and untreated CAMCAKT mice
O
Outcome
Body fat mass, serum free fatty acid levels, and hepatic steatosissurrogate

Gut microbiota depletion negates the metabolic and hepatoprotective benefits of cardiac mitochondrial Akt1 activation in a mouse model of diet-induced diabetic cardiomyopathy.

Cite This Study

Pathak et al. (2026) studied Diet-Induced Diabetic Cardiomyopathy. Broad-spectrum antibiotics (Ampicillin and Enrofloxacin) vs. Untreated CAMCAKT mice and non-induced vehicle injected controls was evaluated on Body fat mass. Microbiota depletion with antibiotics negated the metabolic benefits of cardiac mitochondrial Akt1 activation, resulting in 7% higher body fat mass compared to controls.

synapsesocial.com/papers/6a250ac07def13d035e1ace8https://doi.org/10.2337/db26-2535-p
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