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The Mesenteric Lymph Duct Cannulated Rat Model: Application to the Assessment of Intestinal Lymphatic Drug Transport

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A Comprehensive Rat Model For Assessing Hepatic Transport Pathways Through Simultaneous Lymphatic And Blood Vascular

Andrea Chan¹, Peng Li¹, Gracia Gracia¹

¹Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University.

Journal of Visualized Experiments : Jove

|June 1, 2026

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This summary is machine-generated.

Researchers developed a surgical rat model for simultaneous hepatic lymph and blood sampling. This innovative technique allows comprehensive analysis of liver transport, metabolism, and immune functions for improved drug and nutrient studies.

Area of Science:

Hepatology and Immunology
Physiological Modeling
Surgical Techniques

Background:

The liver acts as a crucial metabolic and immunological center, processing various substances.
Hepatic cells receive blood from the portal vein and hepatic artery, with filtrate entering the space of Disse and forming hepatic lymph.
Analyzing hepatic lymph and blood is key to understanding liver transport, metabolism, and immune activity.

Purpose of the Study:

To describe a novel surgical rat model for simultaneous hepatic lymph and systemic blood sampling.
To enable detailed examination of hepatic transport, metabolic processes, and immune signaling.
To provide a versatile platform for evaluating liver functions under different conditions.

Main Methods:

A surgical rat model was established with cannulation of the hepatic lymph duct, carotid artery, and jugular vein.

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Cervical Lymph Duct-Cannulated Rat Model for Assessing Lymphatic Transport from the Head and Brain

Cervical Lymph Duct-Cannulated Rat Model for Assessing Lymphatic Transport from the Head and Brain

Published on: March 10, 2026

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Last Updated: Jun 3, 2026

The Mesenteric Lymph Duct Cannulated Rat Model: Application to the Assessment of Intestinal Lymphatic Drug Transport

The Mesenteric Lymph Duct Cannulated Rat Model: Application to the Assessment of Intestinal Lymphatic Drug Transport

Published on: March 6, 2015

Cervical Lymph Duct-Cannulated Rat Model for Assessing Lymphatic Transport from the Head and Brain

Cervical Lymph Duct-Cannulated Rat Model for Assessing Lymphatic Transport from the Head and Brain

Published on: March 10, 2026

Continuous sampling of hepatic lymph and arterial blood was performed for up to 8 hours.

Venous blood sampling and terminal sampling of hepatic artery and portal vein were also incorporated.

Main Results:

The model allows for simultaneous collection of hepatic lymph and systemic arterial/venous blood.
Achieved hepatic lymph flow rates of approximately 0.1 mL/h in anesthetized rats.
Facilitates direct comparison between systemic circulation and hepatic lymphatic outflow.

Conclusions:

This model offers a versatile platform for comprehensive evaluation of liver functions.
It is suitable for studying drug pharmacokinetics, nutrient flux, and liver-specific responses.
The technique aids in understanding hepatic transport, metabolism, and immune signaling processes.