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Neural mechanisms of host-microbiota interaction in hypertension: a potential for bio-electronic medicine

Award Number: R01HL152162
ORGANIZATION: NATIONAL HEART, LUNG, & BLOOD INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/09/2024
PERIOD OF PERFORMANCE END DATE: 05/31/2026

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Neural mechanisms of host-microbiota interaction in hypertension: a potential for bio-electronic medicine - Abstract Hypertension (HTN) is a prevalent cardiovascular condition and a leading risk factor for other cardiovascular diseases. If it remains untreated, HTN can lead to numerous comorbidities such as stroke, dementia, diabetes, kidney disease, obstructive sleep apnea, and neurological disorders. Despite advances in prevention and multi- drug therapy, a significant proportion of patients remain resistant or refractory to current treatments. In most cases, treatment-resistant HTN is strongly neurogenic, characterized by a dysfunctional autonomic nervous system (ANS) most recently linked to gut dysbiosis. However, mechanisms of host-microbiota interaction in HTN are not well defined. Our new preliminary data suggests that a breakdown in the neural gut-brain communication resulting from gut dysbiosis may be mediated by reduced serotonergic receptor signaling on the vagal afferent projections from the gut to the nucleus of the solitary tract. In this application, we propose to use state of the art in vivo imaging, electrophysiology and neural stimulation approaches in transgenic and humanized rats in order to interrogate specific molecular and neural mechanisms of host-microbiota interaction in health and HTN, while evaluating the potential of sub-diaphragmatic vagal stimulation for bio-electronic medicine to alleviate the symptoms of gut dysbiosis in HTN.


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: 2025 ( Subtotal = $443,728 )
2025	2025	UNIVERSITY OF SOUTH FLORIDA	4202 E FOWLER AVE	TAMPA	FL	33620	HILLSBOROUGH	USA	Cardiovascular Diseases Research	001	5	4/25/2025	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$397,031
2025	2025	UNIVERSITY OF SOUTH FLORIDA	4202 E FOWLER AVE	TAMPA	FL	33620	HILLSBOROUGH	USA	Cardiovascular Diseases Research	003	5	5/7/2025	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$393,908
2025	2025	UNIVERSITY OF SOUTH FLORIDA	4202 E FOWLER AVE	TAMPA	FL	33620	HILLSBOROUGH	USA	Cardiovascular Diseases Research	004	5	6/6/2025	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$46,697
2025	2024	UNIVERSITY OF TOLEDO	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	002	4	5/7/2025	NON-COMPETING CONTINUATION	-$393,908
2025	2024	UNIVERSITY OF TOLEDO	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	000	4	4/24/2025	NON-COMPETING CONTINUATION	$0
														Subtotal = $443,728

Issue Date FY: 2024 ( Subtotal = $439,948 )
2024	2024	UNIVERSITY OF TOLEDO	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	000	4	5/31/2024	NON-COMPETING CONTINUATION	$439,948
														Subtotal = $439,948

Issue Date FY: 2023 ( Subtotal = $451,268 )
2023	2023	UNIVERSITY OF TOLEDO, THE	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	000	3	5/22/2023	NON-COMPETING CONTINUATION	$451,268
														Subtotal = $451,268

Issue Date FY: 2022 ( Subtotal = $439,862 )
2022	2022	UNIVERSITY OF TOLEDO, THE	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	000	2	5/20/2022	NON-COMPETING CONTINUATION	$439,862
														Subtotal = $439,862

Issue Date FY: 2021 ( Subtotal = $465,342 )
2021	2021	UNIVERSITY OF TOLEDO, THE	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	001	1	3/6/2021	NEW	$0
2021	2021	UNIVERSITY OF TOLEDO, THE	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	002	1	8/4/2021	NEW	$40,015
2021	2021	UNIVERSITY OF TOLEDO, THE	3000 ARLINGTON AVE	TOLEDO	OH	43614	LUCAS	USA	Cardiovascular Diseases Research	000	1	1/22/2021	NEW	$425,327
														Subtotal = $465,342

Grand Total All Awards = $2,240,148

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Neural mechanisms of host-microbiota interaction in hypertension: a potential for bio-electronic medicine

Award Number: R01HL152162

ORGANIZATION: NATIONAL HEART, LUNG, & BLOOD INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 09/09/2024

PERIOD OF PERFORMANCE END DATE: 05/31/2026

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