関連する実験動画

Updated: Apr 13, 2026

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development

Published on: June 24, 2020

新生児の真菌は,マクロファージに依存したβ細胞の発達により,生涯にわたる代謝の健康を促進する

Jennifer Hampton Hill¹, Rickesha Bell¹, Logan Barrios¹

¹Department of Pathology, Division of Microbiology and Immunology, University of Utah, Salt Lake City, UT, USA.

Science (New York, N.Y.)

|March 6, 2025

まとめ

早期の腸内微生物は代謝の健康に不可欠です新生児の微生物多様性の破壊は,Candida dubliniensisのような特定の真菌が保護効果を示すことによって,臓のβ細胞の発達を阻害することで,生涯に渡る糖尿病のリスクにつながる可能性があります.

科学分野:

微生物学
免疫学
代謝疾患

背景:

早期の微生物多様性の喪失は糖尿病と関連しています
腸内微生物と代謝疾患を結びつけるメカニズムは完全に理解されていません.

研究の目的:

生命の初期に生じた微生物群が代謝の健康に果たす役割を調査する.
臓のベータ細胞の発達と機能に影響を与える特定の微生物を特定する.
微生物群,マクロファージ,ベータ細胞の相互作用を探求する.

主な方法:

ネズミの新生児の微生物群の破壊
ベータ細胞の発達と機能の分析
マクロファージの減少に関する研究
人間のコホート分析
菌と細菌による投与試験

主要な成果:

ネズミのベータ細胞の発達が低下したため,新生児の微生物群の破壊は生涯にわたる代謝機能障害を引き起こす.
同じような現象は人間にも見られた.
特定の真菌と細菌はベータ細胞の成長に十分であると特定された.
微生物群はベータ細胞数にとって重要な島根マクロファージに影響を与えます
Candida dubliniensisは,マクロファージに依存した方法でベータ細胞の拡大を促進し,マウスにおける糖尿病の発生率を減少させます.
C. dubliniensisの投与は,除去または抗生物質治療後のベータ細胞機能を改善しました.

結論:

菌類は長期的な代謝健康を促進する生命の初期における重要な共生体です
特定の微生物を標的にすると代謝疾患の治療戦略が生まれます

さらに関連する動画

Author Spotlight: Collecting the Brain and Serum from the Same Mice Fetus to Study Brain Tumor Development

Author Spotlight: Collecting the Brain and Serum from the Same Mice Fetus to Study Brain Tumor Development

Published on: May 17, 2024

Author Spotlight: Developing a Reproducible Method for Isolating Bone Marrow-Derived Macrophages from Neonatal Mice to Advance Early Life Immune Responses

Author Spotlight: Developing a Reproducible Method for Isolating Bone Marrow-Derived Macrophages from Neonatal Mice to Advance Early Life Immune Responses

Published on: May 24, 2024

関連する概念動画

Hormones Regulating Blood Glucose

Hormones Regulating Blood Glucose

Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...

Glucose Homeostasis: Regulation of Blood Glucose

Glucose Homeostasis: Regulation of Blood Glucose

Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...

Fungal Phylum Microsporidia

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...

Development of Human Microbiota

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...

Development of the Oral Microbiota

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...