Related Experiment Video
Updated: Nov 17, 2025

09:17
Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
Published on: August 2, 2018
18.5K
The hypoxia response and nutritional peptides
Thomas Kietzmann1, Ville H Mäkelä1
1University of Oulu, Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Oulu, Finland.
Peptides
|February 12, 2021
Summary
Hypoxia, a state of low oxygen, significantly impacts metabolism and peptide hormones regulating appetite and food intake. This review explores these complex interactions across various organs.
Area of Science:
- Physiology
- Endocrinology
- Metabolism
Background:
- Hypoxia profoundly influences cellular metabolism, including mitochondrial ATP production, glucose uptake, and glycolysis.
- Peptide hormones crucial for food intake and appetite control are produced in the gastrointestinal tract, pancreas, adipose tissue, and brain.
- The intricate relationship between hypoxia, metabolic regulation, and appetite-controlling peptides is not fully understood.
Purpose of the Study:
- To review the multifaceted effects of the hypoxia response on major peptides involved in appetite regulation.
- To elucidate the impact of hypoxia on nutrition and overall metabolism.
- To consolidate current knowledge on the complex interplay between oxygen levels and hormonal control of feeding behavior.
Main Methods:
- Literature review and synthesis of existing research.
- Analysis of studies investigating hypoxia's effects on peptide hormone production and action.
- Examination of metabolic pathways influenced by oxygen levels.
Main Results:
- Hypoxia affects key metabolic processes, including energy production and glucose utilization.
- Numerous peptide hormones central to appetite regulation are demonstrably influenced by hypoxic conditions.
- The gastrointestinal tract, endocrine pancreas, adipose tissue, and brain exhibit complex responses to hypoxia impacting hormonal signaling.
Conclusions:
- Hypoxia is a critical regulator of metabolic and endocrine functions related to appetite.
- Understanding hypoxia's role in peptide hormone action is essential for comprehending appetite control.
- Further research is warranted to fully unravel the complex physiological links between hypoxia, metabolism, and appetite regulation.
Related Concept Videos
Regulation of Angiogenesis and Blood Supply
3.0K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.0K
Hypoxia
1.5K
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
1.5K
Adaptive Mechanisms in Cancer Cells
6.2K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
6.2K
Regulation of Food Intake
1.7K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
1.7K
Cancer Therapies
9.1K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
9.1K
Physiological Control of Respiration
5.0K
Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
5.0K

