生物标志物 生物标志物
Chinyem Nkemjika Ighodaro1, Abigail Meno Akhigbemen1
1University of Benin, Benin city, Edo, Nigeria.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
在动物中抑制毛囊刺激激素 (FSH) 降低了陶蛋白,但在阿尔茨海默氏症中增加了粉样β.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 阿尔茨海默病 (AD) 是一种神经退行性疾病,受遗传,激素和环境因素的影响.
- 升高的化激素 (LH) 与更年期妇女的AD患病率增加有关.
- 毛囊刺激激素 (FSH) 在生殖周期中起作用,并可能影响AD发病.
研究的目的:
- 为了研究动物海马体中蛋白和β粉样蛋白在雌性阶段的表达.
- 为了确定抑制FSH水平对AD相关蛋白质表达的影响.
主要方法:
- 40只白色白鼠被分为对照组,化诱导的AD,AD与雌激素治疗,和仅雌激素的组.
- 通过神经行为评估确认了AD.
- 在FSH抑制后,用RT-PCR分析了蛋白和β粉样蛋白的海马基因表达.
主要成果:
- 抑制的FSH显著降低了AD诱导的老鼠的陶蛋白表达 (p <0.05).
- 与对照组相比,在AD诱导的老鼠中观察到粉样β表达的显著增加 (p < 0.05).
结论:
- 抑制FSH降低了tau蛋白的表达,但上调了粉样β的表达.
- 这些发现突出了AD病变发生过程中生殖激素的复杂相互作用.
- 需要进一步的研究来了解FSH在初潮中的作用及其对女性AD发生的潜在影响.
相关概念视频
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
749
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
749
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
516
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
516


