与绝对血红蛋白相比,血红蛋白的变化作为出生体重的决定因素:来自东印度的二次数据分析
Amandeep Kaur1, Semanti Das2, Farhad Ahamed1
1Department of Community Medicine and Family Medicine, AIIMS Kalyani, West Bengal, India.
概括
怀孕期间母亲血红蛋白水平的变化,而不是绝对水平,显著影响新生儿出生体重. 这一发现为管理怀孕健康和预测婴儿结果提供了新的见解.
科学领域:
- 产科和妇科 产科和妇科
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 公共卫生 营养 公共卫生 营养
背景情况:
- 低出生体重 (LBW) 是婴儿健康和发育的关键决定因素.
- 母亲贫血是已知的LBW风险因素,但其在妊娠阶段的影响尚不清楚.
- 了解妊娠期间的血红蛋白动态对于改善分娩结果至关重要.
研究的目的:
- 为了研究孕期三季度母体血红蛋白度变化与新生儿出生体重之间的关联.
- 为了比较血红蛋白水平变化的影响与绝对血红蛋白水平对出生体重的影响.
- 确定在农村产前护理环境中低出生体重的潜在预测因素.
主要方法:
- 对226名参加月度产前护理 (ANC) 的母亲的二次数据分析.
- 录取标准:从怀孕第一季度到产后完成ANC.
- 分析的重点是母亲的血红蛋白在三个月的变化和与出生体重的相关性.
主要成果:
- 在226次交付中,有46次交付导致了LBW.
- 在血红蛋白变化 (第1到第3季度和第2到第3季度) 和出生体重之间发现了显著的关联.
- 在特定三季度的贫血严重程度和出生体重之间没有显著的关联.
结论:
- 怀孕期间血红蛋白度的变化似乎比绝对水平对出生体重更为关键.
- 这些发现可以指导更新的临床治疗策略,治疗怀孕期间的贫血.
- 需要进一步的研究来阐明这些观察的基础上的生物机制.
相关概念视频
Hemoglobin
7.5K
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...
7.5K
Oxygen Transport in the Blood
6.0K
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,...
6.0K
Regression Toward the Mean
6.8K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.8K
Factors Affecting Erythropoiesis
5.5K
The cardiovascular system regulates the number of erythrocytes in the bloodstream to ensure optimal oxygen transport. It also prevents over-proliferation of these cells, which helps to maintain blood viscosity and flow rate.
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
5.5K
Heritability
590
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic"...
590
z Scores and Area Under the Curve
18.4K
z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of...
18.4K


