{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n CEACAM18 is a conserved member of the carcinoembryonic antigen (CEA) gene family that has been implicated—though not yet fully functionally characterized—in processes related to cellular adhesion, immune modulation, and reproduction. Evolutionary analyses have revealed that CEACAM18, along with several other CEACAM family members, is maintained at a syntenic location among mammals such as mouse, rat, and human, suggesting that it carries out fundamental cellular or signaling roles that have been preserved during evolution."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n In addition, genomics studies in cattle have identified CEACAM18 as a candidate gene within quantitative trait loci affecting economically important traits such as calving performance and milking speed. One study fine‐mapped a key QTL region on chromosome 18 associated with direct calving traits and proposed CEACAM18—as well as other immune‐related genes—as biologically relevant candidates, implying that CEACAM18 might be involved in reproductive physiology and uterine or placental processes."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "\n Similarly, in an investigation of dairy production traits, CEACAM18 was among the genes harboring candidate single nucleotide polymorphisms associated with variation in milking speed, further hinting at a potential role in modulating mammary gland function or related pathways."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n While the precise molecular mechanisms by which CEACAM18 exerts its effects remain to be elucidated, its evolutionary conservation and its association with traits linked to reproduction and lactation underscore its potential importance in coordinating cell–cell interactions and immune responses. Further functional studies are warranted to delineate how CEACAM18 and its related pathways contribute to both normal physiology and disease processes.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Roland Zebhauser, Robert Kammerer, Andreas Eisenried, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Genome-wide association study for milking speed in French Holstein cows."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Dairy Sci (2018)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.3168/jds.2017-14067"}], "href": "https://doi.org/10.3168/jds.2017-14067"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29705414"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29705414"}]}]}]}