Evidence map›Paper›PMID 41634882›Full record

ArticleJournal of animal science and biotechnology2026

Functional analysis and identification of miRNAs associated with lipid metabolism from milk-derived exosomes.

Xin Lu, Tianyu Deng, Yue Liu, Xiaohan Zhang, Xue Bai, Xibi Fang, Runjun Yang

Abstract read
In one paragraph

Article in Journal of animal science and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Xin Lu *College of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China.
Tianyu Deng *College of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China.
Yue LiuCollege of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China.
Xiaohan ZhangCollege of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China.
Xue BaiCollege of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China.
Xibi FangCollege of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China. fangxibi@jlu.edu.cn.
Runjun YangCollege of Animal Science, Jilin University, No. 5333 Xian Road, Changchun, 130062, People's Republic of China. yrj@jlu.edu.cn.ORCID http://orcid.org/0000-0003-1401-4318

Funding

earmarked fund for JLARS 2025-070203Jilin Provincial Scientific and Technological Development Program YDZJ202203CGZH037National Key Research and Development Program of China no.2024YFD1300104National Natural Science Foundation of China no. 32372838National Natural Science Foundation of China U22A20506
6 · The paper itself

Abstract

backgroundExosomes are crucial mediators of intercellular communication. As a key component of milk, milk-derived exosomes are abundant in genetic cargo, particularly microRNAs (miRNAs), indicating their potential role in regulating mammary gland physiology. Therefore, this study aimed to investigate the specificity of miRNAs in milk-derived exosomes and their regulatory roles in lipid synthesis in bovine mammary epithelial cells (BMECs).

resultsBased on 17,838 DHI records showing a significantly higher milk fat percentage (MFP) in late lactation (4.24% ± 1.07%), 10 high- (5.96% ± 0.26%, HMF) and 10 low-MFP (1.68% ± 0.23%, LMF) cows were selected during this stage for milk-derived exosome isolation and miRNA profiling. Exosomes isolated via differential ultracentrifugation were verified as 50-150 nm vesicles expressing CD9, CD81, and TSG101. miRNA sequencing identified 1,320 differentially expressed miRNAs (496 upregulated and 824 downregulated) between the HMF_EXO and LMF_EXO groups. Uptake assays confirmed that BMECs internalized these exosomes, and qRT-PCR validation showed that miR-423-5p and miR-125b were significantly upregulated and downregulated in HMF_EXO- and LMF_EXO-treated BMECs, respectively. Functionally, exosomal miR-423-5p promoted intracellular lipid accumulation and TG synthesis in BMECs by targeting APOA5, whereas miR-125b inhibited lipolysis and fatty acid oxidation by repressing SLC27A1.

conclusionsThis study demonstrates that milk-derived exosomal miRNAs represent a novel mechanism for regulating milk fat synthesis. Specifically, miR-423-5p and miR-125b directly modulated lipid metabolism in BMECs via the miR-423-5p/APOA5 and miR-125b/SLC27A1 pathways. These findings provide new insights into the molecular regulation of milk fat synthesis and highlight the importance of exosome-mediated intercellular communication in the lactating mammary gland.

Indexed as

Dairy cattleLipid metabolismMilk-derived exosomesMilk fat percentagemiRNA

Identifiers

PMID41634882
PMCPMC12870503

What Socratic holds

Textmetadata
LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.