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September 17, 2021Frontiers in Cardiovascular MedicineOpen Access

S-Propargyl-Cysteine Attenuates Diabetic Cardiomyopathy in db/db Mice Through Activation of Cardiac Insulin Receptor Signaling

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Key result

S-Propargyl-Cysteine treatment ameliorated myocardial hypertrophy, fibrosis, and cardiac systolic dysfunction in db/db mice through activation of cardiac insulin receptor signaling.

Why the study?

Endogenous hydrogen sulfide is an emerging key signal molecule in diabetic cardiomyopathy, but the effect and underlying mechanism of the novel modulator S-propargyl-cysteine remained to be explored.

Does S-propargyl-cysteine (SPRC) improve diabetic cardiomyopathy in db/db mice?

Population

8-month-old male db/db mice and wild type littermates, and primary neonatal mice cardiomyocytes

Comparison

SPRC vs vehicle

Design

Preclinical in vivo and in vitro laboratory study

Follow-up

12 weeks

Authors

YLYe LiKXKui-Fang XieYCYa-Hong Chang

Discussion

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Member takes

Overview

No immediate clinical implications in diabetic cardiomyopathy; leaves open a role for S-propargyl-cysteine targeting insulin signaling in preclinical models.

Structured PICO

Does S-propargyl-cysteine (SPRC) improve diabetic cardiomyopathy in db/db mice?

P
Population
Male db/db mice and wild-type littermates treated for 12 weeks to evaluate the effects of SPRC on diabetic cardiomyopathy.
I
Intervention
S-propargyl-cysteine (SPRC) orally administered for 12 weeks (in vivo); SPRC treatment (in vitro)
C
Comparator
Vehicle
O
Outcome
Myocardial hypertrophy, fibrosis, and cardiac systolic dysfunction assessed by histopathological examinations and echocardiographysurrogate

SPRC attenuates diabetic cardiomyopathy in a mouse model by activating cardiac insulin receptor signaling, suggesting potential therapeutic value for diabetic cardiomyopathy.

Limitations

  • Animal model findings may not directly translate to human patients
  • Detailed mechanism of effective dose range of SPRC in vivo needs further study

Cite This Study

Li et al. (2021) studied Diabetic cardiomyopathy. S-Propargyl-Cysteine (SPRC) vs. Vehicle (ddH2O) was evaluated on Myocardial hypertrophy, fibrosis, and cardiac systolic dysfunction. S-Propargyl-Cysteine treatment ameliorated myocardial hypertrophy, fibrosis, and cardiac systolic dysfunction in db/db mice through activation of cardiac insulin receptor signaling.

synapsesocial.com/papers/6a99518fd98b03152a3630ebhttps://doi.org/10.3389/fcvm.2021.737191
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Protective role of hydrogen sulfide against diabetic cardiomyopathy by inhibiting pyroptosis and myocardial fibrosis2024 · 13 citations
  2. 2Exogenous hydrogen sulphide ameliorates diabetic cardiomyopathy in rats by reversing disordered calcium-handling system in sarcoplasmic reticulum2016 · 16 citations
  3. 3Spironolactone Protects against Diabetic Cardiomyopathy in Streptozotocin-Induced Diabetic Rats2018 · 44 citations
  4. 4Network pharmacology and experimental validation reveal inhibition of the JAK2/STAT3 pathway by hydrogen sulfide in diabetic cardiomyopathy2026 · 1 citations
  5. 5Regulation of diabetic cardiomyopathy by caloric restriction is mediated by intracellular signaling pathways involving ‘SIRT1 and PGC-1α’2018 · 173 citations