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Investigating Toxic Elements and Nanoparticles in ALS Etiology: A Geospatial and Toxicological Evaluation of Massachusetts ALS Registry Patients

Award Number: R01ES034133
ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/19/2022
PERIOD OF PERFORMANCE END DATE: 07/31/2027

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Investigating Toxic Elements and Nanoparticles in ALS Etiology: A Geospatial and Toxicological Evaluation of Massachusetts ALS Registry Patients - PROJECT SUMMARY/ABSTRACT Amyotrophic lateral sclerosis (ALS) is a fatal and primarily sporadic neurodegenerative disease involving the death of upper and lower motor neurons. There are a myriad of pathological mechanisms underlying this disease, which makes identifying a single target for treatment a great challenge. It is largely accepted that ALS is caused by a combination of genetic susceptibility and environmental factors. The importance of environmental factors is supported by inter alia discordance in monozygotic twins, conjugal ALS and increased risk of ALS with specific occupations and toxic exposures. While there remains an urgent need to define the pathological etiology of ALS, exposure assessments within etiologically-relevant, pre-symptom time intervals has proven difficult due to differences in methodology and poor assessment methods. In regards physiological assessments, certain chemical elements have been linked to neurotoxicity (e.g. lead). To date, lead represents one of the strongest environmental risk factors connected to ALS. The identification of additional ALS-associated elements however has been stymied by (1) discrepancies in reported measurements and (2) the fact that peripheral measurements rarely reflect the physiological load within the central nervous system. In light of these challenges, our preliminary work indicates an association between toxic element exposures and ALS in epochs prior to diagnosis for lead, mercury and manganese. We have further detected the presence of these same elements in ALS patient brain tissue. We now propose to validate these and other elements as environmental risk factors in Massachusetts (MA), the only state in the country with a reportable (mandatory) ALS registry. Utilizing the national residential history of MA ALS Registry participants, we will estimate subject exposure to potentially toxic and persistent elements prior to diagnosis to identify elements associated with increased ALS risk in a case-control analysis using spatiotemporal geographical information systems (GIS) techniques. In parallel, we will evaluate the concentrations, combinations and spatial distribution of a suite of elements in disease-relevant brain tissue from MA ALS Registry patients and non-neurodegenerative MA autopsy controls and correlate these findings to our GIS studies. We will also characterize the subcellular distribution and composition of nanoparticles in ALS cases relative to controls. Together, this unique and novel research will identify well-founded, risk-related exposures for ALS as well as provide novel insight into the etiology of this disease.


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 = $0 )
2026	2025	DARTMOUTH-HITCHCOCK CLINIC	1 MEDICAL CENTER DR	LEBANON	NH	03756	GRAFTON	USA	Environmental Health	000	4	4/30/2026	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2025 ( Subtotal = $387,632 )
2025	2025	DARTMOUTH-HITCHCOCK CLINIC	1 MEDICAL CENTER DR	LEBANON	NH	03756	GRAFTON	USA	Environmental Health	000	4	8/14/2025	NON-COMPETING CONTINUATION	$387,632
														Subtotal = $387,632

Issue Date FY: 2024 ( Subtotal = $461,158 )
2024	2024	DARTMOUTH-HITCHCOCK CLINIC	1 MEDICAL CENTER DR	LEBANON	NH	03756	GRAFTON	USA	Environmental Health	000	3	7/22/2024	NON-COMPETING CONTINUATION	$461,158
														Subtotal = $461,158

Issue Date FY: 2023 ( Subtotal = $408,881 )
2023	2023	DARTMOUTH-HITCHCOCK CLINIC	ONE MEDICAL CENTER DR	LEBANON	NH	03756	GRAFTON	USA	Environmental Health	000	2	8/1/2023	NON-COMPETING CONTINUATION	$408,881
														Subtotal = $408,881

Issue Date FY: 2022 ( Subtotal = $430,310 )
2022	2022	DARTMOUTH-HITCHCOCK CLINIC	ONE MEDICAL CENTER DR	LEBANON	NH	03756	GRAFTON	USA	Environmental Health	000	1	9/16/2022	NEW	$430,310
														Subtotal = $430,310

Grand Total All Awards = $1,687,981

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Investigating Toxic Elements and Nanoparticles in ALS Etiology: A Geospatial and Toxicological Evaluation of Massachusetts ALS Registry Patients

Award Number: R01ES034133

ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

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

PERIOD OF PERFORMANCE START DATE: 09/19/2022

PERIOD OF PERFORMANCE END DATE: 07/31/2027

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