微量营养素摄入量和与早产卵巢缺陷相关的遗传变异;MASHAD队列研究
Mohammad Reza Mirinezhad1, Maliheh Aghsizadeh2,3, Hamideh Ghazizadeh2,3
1Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
BMC women's health
|February 4, 2024
概括
过早卵巢衰竭 (POI) 与影响血清铜水平的遗传变异有关. 特定的基因型rs4806660和rs244715独立地与POI女性的铜度有关.
科学领域:
- 内分泌学和生殖医学 繁殖医学
- 人类遗传学 人类遗传学
- 营养生物化学 营养生物化学
背景情况:
- 过早卵巢衰竭 (POI),定义为40岁前更年期,在全球范围内,伊朗女性的患病率是伊朗女性的两倍.
- POI与心血管/脑血管疾病和整体死亡率的风险增加有关.
- 遗传因素和微量营养素含量,包括维生素D,都与POI的发展有关.
研究的目的:
- 为了研究与早产卵巢缺陷 (POI) 相关的特定基因型和关键微量营养素的血清水平之间的关联.
- 探索影响POI妇女微量营养素状况的潜在遗传标记.
主要方法:
- 在MASHAD研究中招募了117名POI女性和183名对照女性.
- 使用ASO-PCR或Tetra ARMS-PCR对8个POI相关单核酸多态 (SNP) 的基因型定型.
- 使用标准实验室方法测量血清矿物质和维生素D度.
主要成果:
- 根据基因型rs244715,rs16991615和rs4806660.在POI的女性中观察到血清铜,和水平的显著差异.
- 在对照组中,血清铜度在rs4806660,rs7246479,rs1046089和rs2303369的基因型之间有显著差异.
- 具有TC基因型 (rs4806660) 的POI女性血清铜含量低的风险降低,而具有GG基因型 (rs244715) 的POI女性血清铜含量高的风险增加了六倍.
结论:
- rs4806660的C等位基因和rs244715的G等位基因独立地与早产卵巢缺陷 (POI) 的妇女的血清铜水平相关.
- 需要进一步的研究来阐明血清铜,其他微量营养素和POI相关的多态性之间的关系.
相关概念视频
Oogenesis
63.7K
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
63.7K
Human Genetics
570
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
570
Meiosis I
40.6K
Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
40.6K
Mismatch Repair
4.8K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
4.8K
Background and Environment Affect Phenotype
6.5K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.5K
Incomplete Dominance
22.6K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
22.6K


