Human Milk Microbiota Across Lactation Stages and Free Glutamate Concentrations in Healthy Ecuadorian Women DOI Open Access
Manuel E. Baldeón, Paúl Cárdenas, Valentina Arévalo

et al.

Nutrients, Journal Year: 2025, Volume and Issue: 17(5), P. 805 - 805

Published: Feb. 26, 2025

Background/Objectives: There is limited information on human milk (HM) microbiome composition and function in Latin America. Also, interactions between HM constituents its have received partial attention. Objective: To characterize the microbiota considering lactation stages (colostrum, transition, mature HM) free glutamate concentrations Ecuadorian mothers. Methods: We recruited 20 mothers that gave birth to normal full-term babies donated colostrum, milk. Samples were assessed by 16S rRNA gene sequencing Oxford Nanopore Technologies (ONT). Free measured proton nuclear magnetic resonance (NMR) spectroscopy. Results: For each stage order of frequency, majority ASVs assigned Staphylococcus, Streptococcus, (Firmicutes); Escherichia, Acinetobacter, (Proteobacteria); Corynebacterium, Lactobacillus, Cutibacterium, (Actinobacteriota); Chryseobacterium, Flavobacterium (Bacteroidota). Alfa diversity was similar samples tended be higher intended for male infants. observed significant differences qualitative β-diversity metrics with low high concentrations. Functional predictions demonstrated presence polyamine biosynthesis II super pathway Conclusions: The core bacterial components women those reported from different parts world, variations at genus level. dynamics need studied maternal production metabolism better understand optimal infant nutrition.

Language: Английский

The prolactin receptor scaffolds Janus kinase 2 via co-structure formation with phosphoinositide-4,5-bisphosphate DOI Creative Commons
Raúl Araya-Secchi, Katrine Bugge, Pernille Seiffert

et al.

eLife, Journal Year: 2023, Volume and Issue: 12

Published: May 26, 2023

Class 1 cytokine receptors transmit signals through the membrane by a single transmembrane helix to an intrinsically disordered cytoplasmic domain that lacks kinase activity. While specific binding phosphoinositides has been reported for prolactin receptor (PRLR), role of lipids in PRLR signaling is unclear. Using integrative approach combining nuclear magnetic resonance spectroscopy, cellular experiments, computational modeling, and simulation, we demonstrate co-structure formation intracellular human PRLR, constituent phosphoinositide-4,5-bisphosphate (PI(4,5)P 2 ) FERM-SH2 Janus (JAK2). We find complex leads accumulation PI(4,5)P at interface mutation residues identified interact specifically with negatively affects PRLR-mediated activation signal transducer activator transcription 5 (STAT5). Facilitated formation, membrane-proximal region arranges into extended structure. suggest formed between JAK2, locks juxtamembrane structure, enabling relay from extracellular upon ligand binding. exists different states which speculate could be relevant turning on off. Similar co-structures may other non-receptor tyrosine kinases their receptors.

Language: Английский

Citations

14

Recent insights into the role of hormones during development and their functional regulation DOI Creative Commons

Youssef Aref,

Shelby Chun Fat, Edward Ray

et al.

Frontiers in Endocrinology, Journal Year: 2024, Volume and Issue: 15

Published: Jan. 22, 2024

Introduction Hormones play a vital role in development from conception to birth and throughout the human lifespan. These periods are logically divided into fetal development, pre-pubertal growth, puberty, adulthood. Deviations standard physiological levels release patterns of constituent hormones can lead pathology affecting normal developmental trajectory. Research is ongoing better understand mechanisms these how their modulation affects development. Methods This article focuses on recent developments understanding We also cover discoveries signaling pathways hormonal regulation. Results New continuing research functional hormone regulation sex hormones, gonadotropic growth insulin-like factor, thyroid hormone, interconnectedness each axes. Currently, abundance work fertility correction based an individual’s condition stage life. Discussion Continuing needed fully long-term effects sexual The parallel endocrine axes should be more thoroughly investigated help improve safety efficacy pharmacotherapeutics.

Language: Английский

Citations

5

Current status and challenges for cell-cultured milk technology: a systematic review DOI Creative Commons
Hyuk-Cheol Kwon,

Hyun Su Jung,

Vahinika Kothuri

et al.

Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 8, 2024

Cellular agriculture is an innovative technology for manufacturing sustainable agricultural products as alternative to traditional agriculture. While most cellular predominantly centered on the production of cultured meat, there a growing demand understanding techniques involved in dairy within This review focuses current status sector and technical challenges cell-cultured milk production. has been classified into fermentation-based animal cell culture-based Currently, various companies synthesize components through precision fermentation technology. Nevertheless, several startup are pursuing cell-based technology, driven by public concerns regarding genetically modified organisms Hence, this offers up-to-date exploration produce components, specifically emphasizing structural, functional, productive aspects mammary epithelial cells, providing new information industry academia.

Language: Английский

Citations

5

Rectal microbiomes and serum metabolomics reveal the improved effect of Artemisia ordosica crude polysaccharides on the lactation performance, antioxidant status, and immune responses of lactating donkeys DOI Creative Commons
Sibing Li, Manman Tong, L. Li

et al.

Journal of Dairy Science, Journal Year: 2024, Volume and Issue: 107(9), P. 6696 - 6716

Published: April 11, 2024

This study is aimed at investigating the effects of dietary supplementation with Artemisia ordosica crude polysaccharides (AOCP) on lactation performance, antioxidant status, and immune status lactating donkeys analyzing rectal microbiomes serum metabolomes. Fourteen Dezhou similar age (6.16 ± 0.67 yr BW SD), weight (250.06 25.18 kg), DIM (39.11 7.42 d), average parity 3 were randomly allocated into 2 treatments: a control group (CON, basal diet) an AOCP (AOCP, diet 1.0 g/kg DM AOCP). Ten weeks allotted for experiment, wk adaptation, 8 collecting data samples. The results showed that donkey diets increased including DMI, milking yield, estimated milk solids-corrected milk, ECM, fat protein lactose TS SNF yield. digestibility DM, CP, ADF, NDF was in compared CON group. concentrations IgA, IgG, IgM, activities superoxide dismutase, catalase, total capacity serum. decreased tumor necrosis factor-α, nitric oxide, reactive oxygen species, malondialdehyde Compared group, propionate, butyrate, isovalerate, VFA feces (P < 0.05). addition to diversity (Shannon index) altered structure microflora. As result supplementation, there has been significant improvement colonization beneficial bacteria, Lactobacillus, Unclassified_f_Prevotellacea, Ruminococcus, Fibrobacter genera. In contrast, decrease Clostridium_sensu_stricto_1 bacterial genus other pathogenic bacteria observed. Meanwhile, metabolomics analysis found upregulated metabolites l-tyrosine content while downregulating 9(S)-HODE, choline, sucrose, lysophosphatidylcholine (LysoPC) (18:0), LysoPC (18:1(9Z)), (20:2(11Z,14Z)) concentrations. These involved PPAR signaling pathway, prolactin glycerophospholipid metabolism, carbohydrate digestion absorption, tyrosine metabolism pathways, which mainly related capacity, responses, donkeys. consequence feeding diets, abundant, metabolism-related pathways enriched, may enhance performance Therefore, supplementing desirable strategy improve health performance.

Language: Английский

Citations

4

Prolactin: structure, receptors, and functions DOI
Fanny Chasseloup, Valérie Bernard, Philippe Chanson

et al.

Reviews in Endocrine and Metabolic Disorders, Journal Year: 2024, Volume and Issue: 25(6), P. 953 - 966

Published: Oct. 30, 2024

Language: Английский

Citations

4

Deciphering the colostral-immunity transfer: from mammary gland to neonates small intestine DOI
Mohamed Abdelrahman, Guiqiong Liu, Fatimah A. Al‐Saeed

et al.

Veterinary Research Communications, Journal Year: 2025, Volume and Issue: 49(2)

Published: Jan. 11, 2025

Language: Английский

Citations

0

Milk Composition Is Predictive of Low Milk Supply Using Machine Learning Approaches DOI Creative Commons
Xuehua Jin, Ching Tat Lai, Sharon L. Perrella

et al.

Diagnostics, Journal Year: 2025, Volume and Issue: 15(2), P. 191 - 191

Published: Jan. 15, 2025

Background/Objectives: The causes of low milk supply are multifactorial, including factors such as gene mutations, endocrine disorders, and infrequent removal. These affect the functional capacity mammary gland and, potentially, concentrations components. This study aimed to investigate differences in composition between mothers with normal develop predictive machine learning models for identifying supply. Methods: Twenty-four-hour production measurements were conducted using test-weigh method. An array components was measured 58 women (<600 mL/24 h) 106 (≥600 h). Machine algorithms employed prediction integrating maternal infant characteristics. Results: Among six tested, deep gradient boosting machines methods had best performance metrics. best-performing model, incorporating 14 characteristics, achieved an accuracy 87.9%, area under precision-recall curve (AUPRC) 0.893, receiver operating characteristic (AUC) 0.917. Additionally, a simplified optimised clinical applicability, maintained reasonable 78.8%, AUPRC 0.776, AUC 0.794. Conclusions: findings demonstrate potential predict high accuracy. Integrating characteristics offers practical approach identify at risk supply, facilitating timely interventions support breastfeeding ensure adequate nutrition.

Language: Английский

Citations

0

Breast Morphogenesis: From Normal Development to Cancer DOI
Sævar Ingþórsson, Gunnhildur Ásta Traustadóttir, Þórarinn Guðjónsson

et al.

Advances in experimental medicine and biology, Journal Year: 2025, Volume and Issue: unknown, P. 29 - 44

Published: Jan. 1, 2025

Language: Английский

Citations

0

Mammalian Lactation as a Framework for Teaching Development, Physiology, and Cell Biology for Social Change DOI Creative Commons
Melissa E. Marks,

Emma J. Coddington Brown

Developmental Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0

Premature thelarche and pesticide exposure: A case-control study in an intensive agricultural area DOI Creative Commons
Lucia Coppola, Enrica Fabbrizi,

Giovanni Angelozzi

et al.

International Journal of Hygiene and Environmental Health, Journal Year: 2025, Volume and Issue: 264, P. 114524 - 114524

Published: Jan. 22, 2025

Language: Английский

Citations

0