Video Experimental Relacionado

Updated: May 6, 2026

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

Sobre el crecimiento y la forma del intestino

Thierry Savin¹, Natasza A Kurpios, Amy E Shyer

¹School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

|August 5, 2011

Resumen

El crecimiento diferencial entre el tubo intestinal y su mesenterio impulsa la morfogénesis en bucle intestinal de los vertebrados. Este mecanismo explica la formación del bucle intestinal y la variación entre especies, confirmado por modelos físicos y computacionales.

Área de la Ciencia:

Biología del desarrollo Biología del desarrollo.
La biofísica es la biofísica.
Morfogénesis Morfogénesis es la morfogénesis.

Sus antecedentes:

El tubo intestinal de los vertebrados forma patrones en bucle reproducibles durante el desarrollo.
Los modelos anteriores para el bucle intestinal carecían de explicaciones mecanicistas exhaustivas.

Objetivo del estudio:

Para dilucidar las principales fuerzas motrices detrás de la morfogénesis del bucle intestinal.
Desarrollar un modelo predictivo para la formación y variación del bucle intestinal.

Principales métodos:

Experimentos de desarrollo en embriones de pollo.
Mímico físico utilizando compuestos de tensión diferencial.
Teoría matemática y modelado computacional.

Principales resultados:

El bucle intestinal es impulsado por el crecimiento diferencial entre el tubo intestinal y el mesenterio dorsal.
Un modelo físico replicó los patrones de bucle intestinal observados.
El modelo matemático predice con precisión el número, el tamaño y la forma del bucle.

Conclusiones:

La mecánica macroscópica del crecimiento diferencial gobierna el desarrollo de la morfología intestinal.
El modelo explica las variaciones de bucle intestinal específicas de cada especie.
Este estudio proporciona un marco mecánico unificado para el desarrollo intestinal.

Más Videos Relacionados

Author Spotlight: Development and Application of a Canine IBD Gut-on-a-Chip Model for 3D Intestinal Morphogenesis Studies

Author Spotlight: Development and Application of a Canine IBD Gut-on-a-Chip Model for 3D Intestinal Morphogenesis Studies

Published on: February 9, 2024

Oral Gavage in Neonatal Mouse Pups and Functional Assessment of Gut Barrier Integrity Using Ussing Chambers

Oral Gavage in Neonatal Mouse Pups and Functional Assessment of Gut Barrier Integrity Using Ussing Chambers

Published on: January 9, 2026

Videos de Conceptos Relacionados

Anatomy of the Intestines

Anatomy of the Intestines

Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...

Bacterial Flora of the Large Intestine

Bacterial Flora of the Large Intestine

The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.

Anatomy of the Gastrointestinal System

Anatomy of the Gastrointestinal System

The human digestive system is an intricate and essential network for nutrient absorption and waste elimination. It encompasses the gastrointestinal (GI) tract and several accessory organs.
Here's a detailed walkthrough of this complex system:

Physiology of the Gastrointestinal System II: Digestion and Absorption

Physiology of the Gastrointestinal System II: Digestion and Absorption

The gastrointestinal (GI) tract, extending from the mouth to the anus, plays a pivotal role in the digestion and absorption of nutrients. This process involves both mechanical and chemical actions facilitated by various enzymes.
Digestion begins in the mouth, where food undergoes mechanical breakdown by chewing and combines with saliva. Salivary amylase, an enzyme in saliva, starts the breakdown of starches into maltose. The food then travels down the esophagus to the stomach.
In the stomach, a...

Functions of the Gut Microbiota

Functions of the Gut Microbiota

The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...

Gut-Brain Axis

Gut-Brain Axis

The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such...