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Basic and Applied Basic Research Foundation","award":["202201020656"],"award-info":[{"award-number":["202201020656"]}]},{"name":"Guangzhou Science and Technology Project","award":["2022YFC2702903"],"award-info":[{"award-number":["2022YFC2702903"]}]},{"name":"Guangzhou Science and Technology Project","award":["2022M710883"],"award-info":[{"award-number":["2022M710883"]}]},{"name":"Guangzhou Science and Technology Project","award":["82173525"],"award-info":[{"award-number":["82173525"]}]},{"name":"Guangzhou Science and Technology Project","award":["2022B1515120080"],"award-info":[{"award-number":["2022B1515120080"]}]},{"name":"Guangzhou Science and Technology Project","award":["2023A04J1254"],"award-info":[{"award-number":["2023A04J1254"]}]},{"name":"Guangzhou Science and Technology Project","award":["202201020656"],"award-info":[{"award-number":["202201020656"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Breast milk is tailored for optimal growth in all infants; however, in some infants, it is related to a unique phenomenon referred to as breast milk jaundice (BMJ). BMJ is a type of prolonged unconjugated hyperbilirubinemia that is often late onset in otherwise healthy-appearing newborns, and its occurrence might be related to breast milk itself. This review aims to systematically evaluate evidence regarding breast milk composition and the development of BMJ in healthy neonates. PubMed, Scopus and Embase were searched up to 13 February 2023 with key search terms, including neonates, hyperbilirubinemia, and breastfeeding. A total of 678 unique studies were identified and 12 were ultimately included in the systematic review with narrative synthesis. These included studies covered both nutritional compositions (e.g., fats and proteins) and bioactive factors (e.g., enzymes and growth factors) of breast milk and formally assessed the difference in the concentration (or presence) of various endogenous components of breast milk collected from mothers of BMJ infants and healthy infants. The results were inconsistent and inconclusive for most of the substances of interest, and there was only a single study available (e.g., total energy and mineral content, bile salts and cytokines); conflicting or even contradictory results arose when there were two or more studies on the subject matter (e.g., fats and free fatty acids contents and epidermal growth factor). The etiology of BMJ is likely multifactorial, and no single constituent of breast milk could explain all the BMJ cases observed. Further well-designed studies are warranted to investigate the complex interaction between maternal physiology, the breast milk system and infant physiology before this field could be progressed to uncover the etiology of BMJ.<\/jats:p>","DOI":"10.3390\/nu15102261","type":"journal-article","created":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T01:37:09Z","timestamp":1683769029000},"page":"2261","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Breast Milk Constituents and the Development of Breast Milk Jaundice in Neonates: A Systematic Review"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3597-1360","authenticated-orcid":false,"given":"Chang","family":"Gao","sequence":"first","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3040-0684","authenticated-orcid":false,"given":"Yixin","family":"Guo","sequence":"additional","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6399-5880","authenticated-orcid":false,"given":"Mingxi","family":"Huang","sequence":"additional","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3837-5126","authenticated-orcid":false,"given":"Jianrong","family":"He","sequence":"additional","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"},{"name":"Department of Women\u2019s Health, Guangdong Provincial Key Clinical Specialty of Women and Child Health, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiu","family":"Qiu","sequence":"additional","affiliation":[{"name":"Division of Birth Cohort Study, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"},{"name":"Department of Women\u2019s Health, Guangdong Provincial Key Clinical Specialty of Women and Child Health, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"},{"name":"Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"},{"name":"Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"389","DOI":"10.1016\/S0031-3955(08)70032-4","article-title":"Jaundice and breastfeeding","volume":"48","author":"Gartner","year":"2001","journal-title":"Pediatr. 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