Juvenile Protective Factors and Their Effects on Aging (R01) | PAR 17 126

Opportunity Information: Apply for PAR 17 126

The NIH funding opportunity "Juvenile Protective Factors and Their Effects on Aging (R01)" (PAR-17-126) supports research aimed at understanding why juvenile organisms often maintain stronger repair, resilience, and functional capacity than adults, and how the loss of these advantages after maturation may set the stage for age-related decline later in life. The central idea is that certain biology that is naturally present during postnatal development, meaning the period between birth and sexual maturity, may actively protect tissues and physiological systems. These "juvenile protective factors" (JPFs) are described as intrinsic features of an immature organism that help maintain or enhance physiological function during one or more developmental stages, but then fade, diminish, or disappear as development progresses and the organism transitions into adulthood. The FOA is built around the hypothesis that losing these juvenile factors could be one of the reasons aging-related changes begin to emerge across adulthood, including declines in stem cell function and reduced capacity for tissue repair.

The FOA invites three broad types of projects. First are descriptive studies designed to identify and characterize candidate juvenile protective factors. These projects might map molecular, cellular, physiological, or systemic features that are stronger or uniquely present in juveniles and then decline with maturation. Second are experimental studies that directly test mechanistic hypotheses about how specific JPFs influence aging-related processes. In practice, this could involve manipulating a candidate factor, pathway, cell population, or signaling environment to determine whether it changes trajectories linked to aging biology, such as regenerative potential, maintenance of tissue homeostasis, stress resistance, or other functional readouts relevant to later-life decline. Third are translational studies that move toward application by evaluating what happens if JPF levels are maintained or modulated in adult life, with explicit attention to both potential benefits and potential harms. The FOA is not simply encouraging "anti-aging" interventions; it is emphasizing careful characterization of tradeoffs, side effects, and adverse outcomes that could arise when trying to preserve or recreate juvenile biology in an adult context.

A key boundary in this announcement is the required comparison framework. The program is uniquely focused on animal and clinical studies that compare juvenile versus adult states, or that compare distinct stages within postnatal development, to discover putative JPFs and determine their effects. In other words, the juvenile period and the transition to adulthood are the central comparison points. Studies that only compare young adults to old adults are explicitly not supported. That exclusion is important because it signals that the FOA is targeting earlier life-stage transitions as causal drivers or triggers for later vulnerability, rather than describing differences that appear after aging is already underway. Applicants need to design projects around developmental-stage contrasts and maturation-linked changes, not the typical gerontology comparison of early adulthood versus old age.

The mechanism is an R01 research project grant, under the NIH health funding area (CFDA 93.866). The opportunity sits in the discretionary grants category and is administered by the National Institutes of Health. While the listing includes an original closing date of 2020-03-05 and a creation date of 2017-01-18, the scientific scope remains clear: proposals should be structured to identify juvenile-stage protective biology, test its causal role, and evaluate whether extending or reintroducing it in adulthood meaningfully alters aging-relevant outcomes.

Eligibility is broad and includes many types of U.S. and non-U.S. organizations. Eligible applicants include state, county, city/township, and special district governments; independent school districts; public and state-controlled institutions of higher education; private institutions of higher education; federally recognized Native American tribal governments; other Native American tribal organizations; public housing authorities/Indian housing authorities; nonprofit organizations both with and without 501(c)(3) status (excluding institutions of higher education in those categories as specified); for-profit organizations (other than small businesses); small businesses; and other entities. The FOA also highlights additional eligible applicant categories such as Alaska Native and Native Hawaiian Serving Institutions, AANAPISIs, Hispanic-serving Institutions, Historically Black Colleges and Universities, Tribally Controlled Colleges and Universities, faith-based or community-based organizations, eligible federal agencies, U.S. territories or possessions, regional organizations, and non-domestic (non-U.S.) entities (foreign organizations), reinforcing that the program is open to a wide range of institutional settings and research environments.

Taken together, this FOA is essentially a call for research that treats juvenile biology as a source of protective mechanisms that may be lost at maturation, potentially contributing to adult vulnerability and later-life decline. Successful applications would be expected to anchor their aims in developmental-stage comparisons, establish credible candidate protective factors, use rigorous experiments to test causality where appropriate, and, for translational directions, define both the upside and the risks of maintaining or modulating juvenile-associated protection in adults.

• The National Institutes of Health in the health sector is offering a public funding opportunity titled "Juvenile Protective Factors and Their Effects on Aging (R01)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.866.
• This funding opportunity was created on 2017-01-18.
• Applicants must submit their applications by 2020-03-05. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
• Eligible applicants include: State governments, County governments, City or township governments, Special district governments, Independent school districts, Public and State controlled institutions of higher education, Native American tribal governments (Federally recognized), Public housing authorities/Indian housing authorities, Native American tribal organizations (other than Federally recognized tribal governments), Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education, Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education, Private institutions of higher education, For-profit organizations other than small businesses, Small businesses, Others.

Apply for PAR 17 126

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