PMID- 26820065 OWN - NLM STAT- MEDLINE DCOM- 20171211 LR - 20240109 IS - 1530-0366 (Electronic) IS - 1098-3600 (Print) IS - 1098-3600 (Linking) VI - 18 IP - 9 DP - 2016 Sep TI - Evidence for an association between infant mortality and homozygosity for the arctic variant of carnitine palmitoyltransferase 1A. PG - 933-9 LID - 10.1038/gim.2015.197 [doi] AB - PURPOSE: Infant mortality in Alaska is highest among Alaska Native people from western/northern Alaska, a population with a high prevalence of a genetic variant (c.1436C>T; the arctic variant) of carnitine palmitoyltransferase 1A (CPT1A). METHODS: We performed an unmatched case-control study to determine the relationship between the arctic variant and infant mortality. The cases were 110 Alaska Native infant deaths from 2006 to 2010 and the controls were 395 Alaska Native births from the same time period. In addition to the overall analysis, we conducted two subanalyses, one limited to subjects from western/northern Alaska and one limited to infants heterozygous or homozygous for the arctic variant. RESULTS: Among western/northern Alaska residents, 66% of cases and 61% of controls were homozygous (adjusted odds ratio (aOR): 2.5; 95% confidence interval (CI): 1.3, 5.0). Among homozygous or heterozygous infants, 58% of cases and 44% of controls were homozygous (aOR: 2.3; 95% CI: 1.3, 4.0). Deaths associated with infection were more likely to be homozygous (OR: 2.9; 95% CI: 1.0-8.0). Homozygosity was strongly associated with a premorbid history of pneumonia, sepsis, or meningitis. CONCLUSION: Homozygosity for the arctic variant is associated with increased risk of infant mortality, which may be mediated in part by an increase in infectious disease risk. Further studies are needed to determine whether the association we report represents a causal association between the CPT1A arctic variant and infectious disease-specific mortality.Genet Med 18 9, 933-939. FAU - Gessner, Bradford D AU - Gessner BD AD - Alaska Division of Public Health, Anchorage, Alaska, USA. AD - Present address: EpiVac Consulting, Anchorage, Alaska, USA. FAU - Wood, Thalia AU - Wood T AUID- ORCID: 0000-0001-9563-6391 AD - Alaska Division of Public Health, Anchorage, Alaska, USA. AD - Present address: EpiVac Consulting, Anchorage, Alaska, USA. FAU - Johnson, Monique A AU - Johnson MA AD - Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, USA. FAU - Richards, Carolyn Sue AU - Richards CS AUID- ORCID: 0000-0003-1078-979X AD - Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, USA. FAU - Koeller, David M AU - Koeller DM AUID- ORCID: 0000-0002-4340-4908 AD - Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon, USA. AD - Department of Pediatrics, Oregon Health & Science University, Portland, Oregon, USA. LA - eng GR - R03 HD060728/HD/NICHD NIH HHS/United States PT - Journal Article DEP - 20160128 PL - United States TA - Genet Med JT - Genetics in medicine : official journal of the American College of Medical Genetics JID - 9815831 RN - EC 2.3.1.21 (CPT1A protein, human) RN - EC 2.3.1.21 (Carnitine O-Palmitoyltransferase) SB - IM MH - Alaska MH - Alaska Natives/genetics MH - Carnitine O-Palmitoyltransferase/*genetics MH - Communicable Diseases/*genetics/mortality/pathology MH - Female MH - Genetic Association Studies MH - Genetic Variation MH - Homozygote MH - Humans MH - Indians, North American MH - Infant MH - *Infant Mortality MH - Infant, Newborn MH - Male MH - Meningitis/genetics/mortality MH - *Neonatal Screening MH - Pneumonia/genetics/mortality MH - Risk Factors MH - Sepsis/genetics/mortality PMC - PMC4965343 MID - NIHMS744789 EDAT- 2016/01/29 06:00 MHDA- 2017/12/12 06:00 PMCR- 2016/07/28 CRDT- 2016/01/29 06:00 PHST- 2015/07/17 00:00 [received] PHST- 2015/11/17 00:00 [accepted] PHST- 2016/01/29 06:00 [entrez] PHST- 2016/01/29 06:00 [pubmed] PHST- 2017/12/12 06:00 [medline] PHST- 2016/07/28 00:00 [pmc-release] AID - S1098-3600(21)04441-5 [pii] AID - 10.1038/gim.2015.197 [doi] PST - ppublish SO - Genet Med. 2016 Sep;18(9):933-9. doi: 10.1038/gim.2015.197. Epub 2016 Jan 28.