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Social stress induces bone loss and growth plate reduction

Award Number: R56DE034688
ORGANIZATION: NATIONAL INSTITUTE OF DENTAL AND CRANIOFACIAL RESEARCH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 05/15/2026
PERIOD OF PERFORMANCE END DATE: 05/14/2027

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Social stress induces bone loss and growth plate reduction - Project Summary/Abstract Psychological stress is an established contributor to bone and tooth loss and impaired bone growth. In the US, more than 50 million people currently experience bone loss while a similar number is afflicted by anxiety (40 million) and/or depressive disorders (16 million). Bone and tooth loss resulting from psychological stress has been observed in all age populations. A murine model of stress, repeated social defeat (RSD), recapitulates key physiological, immunological, and behavioral alterations in humans exposed to psychosocial stress such as bullying and loss of social status. RSD activates the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system to create a state in which primed, pro-inflammatory monocytes traffic from the bone marrow to the brain to generate neuroinflammation and anxiety-like behavior. In addition, RSD rapidly induces bone loss through increased activity of osteoclasts, and bone growth plate reduction. However, the precise mechanisms by which RSD influences bone have not been identified. Therefore, the overall goal of this project is to exploit a rodent model of psychological stress to better explore the relationships between immunological processes, mental and bone health. This will be accomplished in three Specific Aims. Aim 1 will examine the kinetics of bone loss and growth plate reduction in adolescent male and female mice following a period of RSD. Aim 2 will investigate a central role for osteoclast activation and chemokine (CXCL12) signaling in RSD-induced monocyte mobilization. Aim 3 will investigate mechanisms of RSD-induced growth plate reduction. Outcomes of this project will help achieve the long-term goal of developing more specific interventions to treat psychological stress-related disorders of skeletal physiology.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $393,750 )
2026	2026	OHIO STATE UNIVERSITY, THE	1960 KENNY RD	COLUMBUS	OH	43210	FRANKLIN	USA	Oral Diseases and Disorders Research	000	1	5/14/2026	NEW	$393,750
														Subtotal = $393,750

Grand Total All Awards = $393,750

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Social stress induces bone loss and growth plate reduction

Award Number: R56DE034688

ORGANIZATION: NATIONAL INSTITUTE OF DENTAL AND CRANIOFACIAL RESEARCH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 05/15/2026

PERIOD OF PERFORMANCE END DATE: 05/14/2027

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