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Study · Animal study (in vivo) · fischer 344 x brown norway rat · 2022

12 results

A small erythropoietin derived non-hematopoietic peptide reduces cardiac inflammation, attenuates age associated declines in heart function and prolongs healthspan.

Winicki NM, Nanavati AP, Morrell CH, Moen JM, Axsom JE, Krawczyk M, Petrashevskaya NN, Beyman MG, Ramirez C, Alfaras I, Mitchell SJ, Juhaszova M and 8 more

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Riordon DR, Wang M, Zhang J, Cerami A, Brines M, Sollott SJ, de Cabo R, Lakatta EG

Frontiers in cardiovascular medicine18 Jan 2023Cited by 3 (Europe PMC)

Summary

BackgroundAging is associated with increased levels of reactive oxygen species and inflammation that disrupt proteostasis and mitochondrial function and leads to organism-wide frailty later in life. ARA290 (cibinetide), an 11-aa non-hematopoietic peptide sequence within the cardioprotective domain of erythropoietin, mediates tissue protection by reducing inflammation and fibrosis. Age-associated cardiac inflammation is linked to structural and functional changes in the heart, including mitochondrial dysfunction, impaired proteostasis, hypertrophic cardiac remodeling, and contractile dysfunction. Can ARA290 ameliorate these age-associated cardiac changes and the severity of frailty in advanced age?MethodsWe conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline. Serial echocardiography, tail blood pressure and body weight were evaluated repeatedly at 4-month intervals. A frailty index was calculated at the final timepoint (33 months of age). Tissues were harvested at 4-month intervals to define inflammatory markers and left ventricular tissue remodeling. Mitochondrial and myocardial cell health was assessed in isolated left ventricular myocytes. Kaplan-Meier survival curves were established. Mixed ANOVA tests and linear mixed regression analysis were employed to determine the effects of age, treatment, and age-treatment interactions.ResultsChronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio, infiltrating leukocytes and monocytes, pro-inflammatory cytokines, total NF-κB, and p-NF-κB. Additionally, ARA290 treatment enhanced cardiomyocyte autophagy flux and reduced cellular accumulation of lipofuscin. The cardiomyocyte mitochondrial permeability transition pore response to oxidant stress was desensitized following chronic ARA290 treatment. Concurrently, ARA290 significantly blunted the age-associated elevation in blood pressure and preserved the LV ejection fraction. Finally, ARA290 preserved body weight and significantly reduced other markers of organism-wide frailty at the end of life.ConclusionAdministration of ARA290 reduces cell and tissue inflammation, mitigates structural and functional changes within the cardiovascular system leading to amelioration of frailty and preserved healthspan.
CC BYText from Europe PMC. Highlighted sentences are the source of results.

Results from this study12

12 results from studies that gave the peptide. No result from this study comes from people.

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, chronic ARA290 mitigated the age-related increase in the cardiac non-myocyte to myocyte ratio versus saline.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise in non-muscle cells in the heart compared with saline.

    Outcome
    DecreaseCardiac non-myocyte to myocyte ratio
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Heart function · Cardiovascular
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Chronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, chronic ARA290 mitigated the age-related increase in infiltrating leukocytes and monocytes in the heart.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise of immune cells in the heart compared with saline.

    Outcome
    DecreaseInfiltrating leukocytes and monocytes in heart
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Inflammation markers · Immune and inflammation
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Chronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio, infiltrating leukocytes and monocytes
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, chronic ARA290 mitigated the age-related increase in pro-inflammatory cytokines in the heart.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise of inflammatory signals in the heart compared with saline.

    Outcome
    DecreasePro-inflammatory cytokines in heart
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Inflammation markers · Immune and inflammation
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Chronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio, infiltrating leukocytes and monocytes, pro-inflammatory cytokines
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, chronic ARA290 mitigated the age-related increase in total NF-κB in the heart.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise of the inflammation protein NF-κB in the heart.

    Outcome
    DecreaseTotal NF-κB in heart
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Inflammation markers · Immune and inflammation
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Chronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio, infiltrating leukocytes and monocytes, pro-inflammatory cytokines, total NF-κB
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  5. 05AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, chronic ARA290 mitigated the age-related increase in p-NF-κB in the heart.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise of active NF-κB in the heart.

    Outcome
    DecreasePhosphorylated NF-κB (p-NF-κB) in heart
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Inflammation markers · Immune and inflammation
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Chronic ARA290 treatment mitigated age-related increases in the cardiac non-myocyte to myocyte ratio, infiltrating leukocytes and monocytes, pro-inflammatory cytokines, total NF-κB, and p-NF-κB
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  6. 06AnimalAnimal study (in vivo)Mechanism

    In aged rats, ARA290 treatment enhanced cardiomyocyte autophagy flux.

    In plain wordsIn aged rats, ARA290 increased the clearing of damaged material in heart muscle cells.

    Outcome
    IncreaseCardiomyocyte autophagy flux
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Aging markers · Aging and longevity
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Additionally, ARA290 treatment enhanced cardiomyocyte autophagy flux
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  7. 07AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, ARA290 treatment reduced cellular accumulation of lipofuscin in cardiomyocytes.

    In plain wordsIn aged rats, ARA290 reduced build-up of an ageing pigment in heart cells.

    Outcome
    DecreaseCardiomyocyte lipofuscin accumulation
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Aging markers · Aging and longevity
    Studied dose
    Dose not stated

    Source sentences

    Summary
    reduced cellular accumulation of lipofuscin.
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  8. 08AnimalAnimal study (in vivo)Mechanism

    In cardiomyocytes from aged rats, chronic ARA290 desensitized the mitochondrial permeability transition pore response to oxidant stress.

    In plain wordsIn aged rats, ARA290 made heart cell mitochondria less sensitive to damage from oxidant stress.

    Outcome
    DecreaseMitochondrial permeability transition pore response to oxidant stress
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Mitochondrial function · Cardiovascular
    Studied dose
    Dose not stated

    Source sentences

    Summary
    The cardiomyocyte mitochondrial permeability transition pore response to oxidant stress was desensitized following chronic ARA290 treatment.
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  9. 09AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, ARA290 significantly blunted the age-associated elevation in blood pressure.

    In plain wordsIn aged rats, ARA290 reduced the age-related rise in blood pressure compared with saline.

    Outcome
    DecreaseAge-associated elevation in blood pressure
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Blood pressure · Cardiovascular
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Concurrently, ARA290 significantly blunted the age-associated elevation in blood pressure
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  10. 10AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, ARA290 preserved the left ventricular ejection fraction.

    In plain wordsIn aged rats, ARA290 kept the heart's pumping fraction better than saline.

    Outcome
    IncreaseLV ejection fraction
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Heart function · Cardiovascular
    Studied dose
    Dose not stated

    Source sentences

    Summary
    preserved the LV ejection fraction.
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  11. 11AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, ARA290 preserved body weight.

    In plain wordsIn aged rats, ARA290 helped keep body weight compared with saline.

    Outcome
    IncreaseBody weight at end of life
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Body weight · Metabolic and weight
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Finally, ARA290 preserved body weight
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.
  12. 12AnimalAnimal study (in vivo)Efficacy outcome

    In aged rats, ARA290 significantly reduced other markers of organism-wide frailty at the end of life.

    In plain wordsIn aged rats, ARA290 lowered several signs of frailty late in life compared with saline.

    Outcome
    DecreaseMarkers of organism-wide frailty
    Study

    Fischer 344 x Brown Norway ratn: not reported in source

    Aged (18-month-old) rats given chronic ARA290 or saline
    Comparator
    Saline
    Outcome group
    Aging markers · Aging and longevity
    Studied dose
    Dose not stated

    Source sentences

    Summary
    significantly reduced other markers of organism-wide frailty at the end of life.
    1 context sentence
    Summary · context
    We conducted an integrated longitudinal (n = 48) and cross-sectional (n = 144) 15 months randomized controlled trial in which 18-month-old Fischer 344 x Brown Norway rats were randomly assigned to either receive chronic ARA290 treatment or saline.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    10 Oct 2026, 10:21 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 03:13 UTC

    First added · source update from Europe PMC

Subjects

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