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. 2022 Jun 27;14(6):1235-1247.
doi: 10.4254/wjh.v14.i6.1235.

Factors early in life associated with hepatic steatosis

Sabrina Xin Zi Quek  1 , Eunice Xiang-Xuan Tan  1 , Yi Ping Ren  2 , Mark Muthiah  1 , Evelyn Xiu Ling Loo  3 , Elizabeth Huiwen Tham  3 , Kewin Tien Ho Siah  1
Affiliations

Factors early in life associated with hepatic steatosis

Sabrina Xin Zi Quek et al. World J Hepatol. .

Abstract

Background: The rise in prevalence of non-alcoholic fatty liver disease (NAFLD) mirrors the obesity epidemic. NAFLD is insidious but may gradually progress from simple steatosis to steatohepatitis, fibrosis and cirrhosis and/or hepatocellular carcinoma. Intervention strategies to ameliorate developmental programming of NAFLD may be more efficacious during critical windows of developmental plasticity.

Aim: To review the early developmental factors associated with NAFLD.

Methods: Databases MEDLINE via PubMed, and EMBASE and Reference Citation Analysis were searched and relevant publications up to April 30, 2021 were assessed. Original research studies that included risk factors associated with early development of NAFLD in human subjects were included. These factors include: Maternal factors, intrauterine and prenatal factors, post-natal factors, genetic and ethnic predisposition, childhood and adolescence environmental factors. Studies were excluded if they were review articles or animal studies, case reports or conference abstracts, or if NAFLD was not clearly defined and assessed radiologically.

Results: Of 1530 citations identified by electronic search, 420 duplicates were removed. Of the 1110 citations screened from title and abstract, 80 articles were included in the final analysis. Genetic polymorphisms such as patatin-like phospholipase domain-containing protein 3 (PNPLA3) and membrane-bound O-acyltransferase domain-containing protein 7 (MBOAT7) were associated with increased risk of NAFLD. Familial factors such as maternal obesogenic environment and parental history of hepatic steatosis was associated with offspring NAFLD. Longer duration of exclusive breastfeeding in infancy was associated with a lower risk of developing NAFLD later in life while metabolic dysfunction and/or obesity in adolescence was associated with increased risk of NAFLD. Studies relating to socioeconomic factors and its association with NAFLD reported confounding results.

Conclusion: Maternal metabolic dysfunction during pregnancy, being exclusively breastfed for a longer time postnatally, diet and physical activity in childhood and adolescence are potential areas of intervention to decrease risk of NAFLD.

Keywords: Developmental; Epidemiology; Fatty liver; Natural history; Obesity.

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Conflict of interest statement

Conflict-of-interest statement: All the authors declare that they have no conflict of interest.

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PRISMA flow diagram.
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