Related Experiment Video
Updated: Jan 8, 2026

08:01
Induction of Hypoxia in Living Frog and Zebrafish Embryos
Published on: June 26, 2017
10.1K
[Research progress on the correlation between hemoglobin gene polymorphism and high-altitude hypoxia adaptation]
Qian Ji1,2, Yue-Mei Sun2, Ying-Fei Zhang2
1College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, China.
Sheng Li Xue Bao : [Acta Physiologica Sinica]
|December 22, 2025
Summary
Genetic variations in hemoglobin, the protein that carries oxygen in red blood cells, can affect its function. This review explores how hemoglobin gene polymorphisms may play a role in adapting to high-altitude hypoxia.
Area of Science:
- Biochemistry
- Human Physiology
- Genetics
Background:
- Hemoglobin's crucial role in oxygen transport relies on its conformational changes.
- Genetic polymorphisms can alter hemoglobin's oxygen-binding properties.
- High-altitude adaptation research often overlooks hemoglobin gene variations.
Purpose of the Study:
- To review the impact of gene polymorphism on hemoglobin structure and function.
- To explore the link between high-oxygen-affinity hemoglobin and adaptation to high-altitude hypoxia.
Main Methods:
- Review of existing literature on hemoglobin structure, function, and genetic polymorphisms.
- Analysis of amino acid substitutions in globin chains.
- Exploration of the association between hemoglobin oxygen affinity and high-altitude adaptation.
Main Results:
- Hemoglobin gene polymorphisms significantly influence hemoglobin's oxygen affinity.
- Specific hemoglobin variants may confer advantages in hypoxic environments.
- Understanding these polymorphisms offers insights into human adaptation mechanisms.
Conclusions:
- Hemoglobin gene polymorphisms are a key factor in high-altitude hypoxia adaptation.
- Further research into these genetic variations can reveal novel adaptation strategies.
- This review provides a foundation for future studies on high-altitude physiology and genetics.
Related Concept Videos
Factors Affecting Respiration
8.9K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
8.9K
Oxygen Transport in the Blood
5.8K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
5.8K
Hypoxia
1.9K
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...
1.9K
Hemoglobin
7.3K
Hemoglobin is a globular protein made up of four subunits. Two of these subunits are alpha chains, and the other two are beta chains. Each subunit contains a molecule of heme, which has an iron atom and can bind to oxygen. When an oxygen molecule binds to one heme group, it changes the shape of hemoglobin, making it easier for the other heme groups to bind oxygen as well.
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...
7.3K
Gene Families
9.7K
Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
9.7K
Special considerations while measuring oxygen saturation
875
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
875

