Monday, November 3, 2025 11/3/2025

Integration of Feeding Time and Glucose Metabolism by the Circadian Gene Network

Award Number: R01DK090625
ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/17/2021
PERIOD OF PERFORMANCE END DATE: 06/30/2026

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Integration of Feeding Time and Glucose Metabolism by the Circadian Gene Network - PROJECT SUMMARY Circadian rhythms are autonomous cycles of behavior and physiology that undergo routine disruption in modern society due to the rise in shift work, exposure to blue light at night, disrupted sleep, and consumption of highly- palatable high-fat diet. Molecular clocks are encoded by transcription feedback loops that drive the 24-hr sleep- wake cycle and physiological rhythms in hormone levels, glucose metabolism, and energetics. In the previous grant period, we revealed an essential function for both brain and peripheral clocks in rhythmic energy homeostasis and glucose metabolism. We showed that morning/evening variation in chromatin conformation controls -cell insulin secretion. We also showed that clock ablation in neurons of forebrain and midbrain impairs appetitive drive, sleep/wake rhythms, energy balance, glucose tolerance, and transcription, although a gap remains in our understanding of the mechanisms underlying rhythmic integration of behavior and metabolism. Here we seek to extend our insight into circadian mechanisms linking behavior and metabolism. (i) In our first aim, we will dissect the cell and molecular basis for genomic rhythms driving -cell function important in glucose constancy across the sleep-wake cycle. (ii) In our second aim, we will identify the neurocircuit basis for rhythms of hedonic and homeostatic feeding coordinating appetitive drive with glucose homeostasis. An innovation of our work is the multidimensional integration of genetics, genomics, and behavioral analyses to gain molecular insight into rhythmic -cell function and neuronal control of hunger. Ultimately, we are poised to uncover new insight into how central and peripheral clocks impact physiology, findings which have broad implications for the treatment and prevention of obesity and metabolic syndrome.


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 = $486,467 )
2025	2025	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	14	8/12/2025	NON-COMPETING CONTINUATION	$486,467
														Subtotal = $486,467

Issue Date FY: 2024 ( Subtotal = $467,009 )
2024	2024	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	13	7/1/2024	NON-COMPETING CONTINUATION	$467,009
														Subtotal = $467,009

Issue Date FY: 2023 ( Subtotal = $486,467 )
2023	2023	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	12	6/21/2023	NON-COMPETING CONTINUATION	$486,467
														Subtotal = $486,467

Issue Date FY: 2022 ( Subtotal = $486,467 )
2022	2022	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	004	11	7/19/2022	NON-COMPETING CONTINUATION	$486,467
2022	2021	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	10	3/23/2022	COMPETING CONTINUATION	$193,015
2022	2021	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	003	10	6/27/2022	COMPETING CONTINUATION	$4,487
2022	2020	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	002	9	6/27/2022	NON-COMPETING CONTINUATION	-$4,487
2022	2020	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	9	3/23/2022	NON-COMPETING CONTINUATION	-$193,015
														Subtotal = $486,467

Issue Date FY: 2021 ( Subtotal = $486,467 )
2021	2021	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	10	9/17/2021	COMPETING CONTINUATION	$486,467
2021	2020	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	9	9/15/2021	NON-COMPETING CONTINUATION	$0
														Subtotal = $486,467

Issue Date FY: 2020 ( Subtotal = $501,112 )
2020	2020	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	9	3/25/2020	NON-COMPETING CONTINUATION	$501,112
														Subtotal = $501,112

Issue Date FY: 2019 ( Subtotal = $501,112 )
2019	2019	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	8	3/12/2019	NON-COMPETING CONTINUATION	$501,112
														Subtotal = $501,112

Issue Date FY: 2018 ( Subtotal = $501,112 )
2018	2018	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	7	4/23/2018	NON-COMPETING CONTINUATION	$501,112
														Subtotal = $501,112

Issue Date FY: 2017 ( Subtotal = $501,112 )
2017	2017	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	6	6/16/2017	NON-COMPETING CONTINUATION	$50,112
2017	2017	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	6	3/31/2017	NON-COMPETING CONTINUATION	$451,000
														Subtotal = $501,112

Issue Date FY: 2016 ( Subtotal = $514,737 )
2016	2016	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	5	6/1/2016	COMPETING CONTINUATION	$514,737
														Subtotal = $514,737

Issue Date FY: 2014 ( Subtotal = $467,690 )
2014	2014	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	4	3/28/2014	NON-COMPETING CONTINUATION	$467,690
														Subtotal = $467,690

Issue Date FY: 2013 ( Subtotal = $451,320 )
2013	2013	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	3	5/21/2013	NON-COMPETING CONTINUATION	$30,399
2013	2013	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	3	3/20/2013	NON-COMPETING CONTINUATION	$420,921
														Subtotal = $451,320

Issue Date FY: 2012 ( Subtotal = $467,690 )
2012	2012	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	2	3/26/2012	NON-COMPETING CONTINUATION	$467,690
														Subtotal = $467,690

Issue Date FY: 2011 ( Subtotal = $563,011 )
2011	2011	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	1	6/9/2011	NEW	$105,782
2011	2011	NORTHWESTERN UNIVERSITY	633 CLARK STREET	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	1	4/15/2011	NEW	$457,229
														Subtotal = $563,011

Grand Total All Awards = $6,881,773

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Integration of Feeding Time and Glucose Metabolism by the Circadian Gene Network

Award Number: R01DK090625

ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 09/17/2021

PERIOD OF PERFORMANCE END DATE: 06/30/2026

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