D-galactose Model

The D-galactose model is an experimental system used to reproduce selected features of aging and age-related disease in laboratory animals, making it useful for biomedical research. Repeated administration of D-galactose, typically at elevated doses, promotes oxidative stress, accumulation of advanced glycation end products, and inflammatory changes that can impair tissue and organ function. Researchers use this model to investigate mechanisms of aging, assess potential therapeutic interventions, and measure outcomes such as cognitive, biochemical, and histological changes. Its value depends on careful dosing and interpretation because it captures only selected aspects of human aging.

D-galactose Model - Related Videos

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JoVE Journal - Medicine
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Dioscin Mediated IgA Nephropathy Alleviation by Inhibiting B Cell Activation In Vivo and Decreasing Galactose-Deficient IgA1 Production In Vitro

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2023

This study provides experimental data for treating immunoglobulin A nephropathy (IgAN) with Dioscin (DIO), the active ingredient of Dioscoreae Nipponicae Rhizoma (DNR), and a paradigm for studying herbal medicine's effects and underlying mechanisms in vivo and in vitro.

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JoVE Journal - Biology

Genetic Studies of Human DNA Repair Proteins Using Yeast as a Model System

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2010

Genetic studies in yeast can be employed to investigate the molecular and cellular functions of human genes in cellular DNA metabolism. Methods are described for the genetic characterization of the human WRN gene product defective in the premature aging disorder Werner syndrome in functionally conserved pathways using yeast as a tractable model system.

Culture of Murine Embryonic Metatarsals: A Physiological Model of Endochondral Ossification

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Cited by 24 •

2016

We present a protocol to dissect and culture embryonic day 15 (E15) murine metatarsal bones. This highly physiological ex vivo model of endochondral ossification provides conditions closer to the in vivo situation than cells in monolayer or 3D culture and is a vital tool for investigating bone growth and development.

Impact Assessment of Repeated Exposure of Organotypic 3D Bronchial and Nasal Tissue Culture Models to Whole Cigarette Smoke

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Cited by 41 •

2015

The aim of this protocol is to expose human organotypic 3D bronchial and nasal tissue models to mainstream cigarette smoke (CS) at the air-liquid interface. The impact of CS on the tissues is then investigated using a cytochrome P450 activity assay, a cilia beating measurement, and a systems biology approach.

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JoVE Journal - Biology
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In Vivo Modeling of the Morbid Human Genome using Danio rerio

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2013

Here, we present a systematic approach for developing physiologically relevant, sensitive and specific in vivo assays for interpreting variation in human pathology. Transient genetic manipulation via microinjection of WT and mutant human mRNA and morpholino (MO) antisense oligonucleotides harness the tractability of the developing zebrafish embryo to rapidly assay pathogenic mutations, especially, but not exclusively, in the context of human developmental disorders.

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