遗传证据表明,在pterygium中涉及循环脂质和脂质药物标
Yuchen Cai1,2, Fei Fang1,2, Tianyi Zhou1,2
1Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Computational and structural biotechnology journal
|November 29, 2023
概括
高的LDL胆固醇和总胆固醇会增加风的风险. 向HMGCR的降胆固醇他类药物可能会提供保护,防止膜发育,这需要进一步调查.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 代谢疾病 代谢疾病
背景情况:
- 关于脂质影响,人们还不太了解pterygium的发育.
- 现有关于脂质和pterygium的研究显示了相互矛盾的结果.
研究的目的:
- 为了研究循环脂质和风险之间的因果关系.
- 评估脂质修饰药物,特别是PCSK9和HMGCR抑制剂,对pterygium的影响.
主要方法:
- 使用了双步门德尔随机化 (MR) 方法.
- 双向两个样本的MR确定了脂质-体关联.
- 药物向MR分析了HMGCR和PCSK9抑制剂对pterygium的影响.
主要成果:
- 基因预测高的LDL胆固醇显著增加了pterygium风险 (OR=2.227).
- 升高的总胆固醇显示出与皮细胞敏感性 (OR=1.806) 的暗示性关联.
- 通过HMGCR介导的LDL胆固醇水平与pterygium (OR=6.999) 有积极的关联,这表明他类药物的有效性.
结论:
- 循环总胆固醇和LDL胆固醇被确定为pterygium的危险因素.
- HMGCR抑制剂 (他类药物) 可能在pterygium中起着保护作用.
- 建议进一步研究胆固醇代谢在pterygium病变发生中的作用.
相关概念视频
Blood Studies for Cardiovascular System III: Serum Lipid Profile
165
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
165
Lipids as Anchors
5.6K
In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains...
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains...
5.6K
Lipid-derived Compounds in the Human Body
4.4K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
4.4K
Phosphoinositides and PIPs
8.5K
Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
8.5K
Asymmetric Lipid Bilayer
7.3K
Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
7.3K
Assembly of the Lipid Bilayer in the ER
3.2K
Biological membranes are more than just a barrier separating cell cytoplasm from the outside environment. They are highly dynamic and help maintain the integrity and physiological stability of the cells as well as membrane-bound organelles. Membranes also play vital roles in cell-to-cell and intracellular communication.
A large chunk of any biological membrane is composed of phospholipids. These lipids have a heterogeneous distribution across different subcellular organelles and even between...
A large chunk of any biological membrane is composed of phospholipids. These lipids have a heterogeneous distribution across different subcellular organelles and even between...
3.2K


