高环境温度与自发流产之间的关联:系统性审查和元分析
Jie Xu1, Haoyi Xu1, Xiaoyu Zhao1
1Department of Obstetrics and Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, China.
Ecotoxicology and environmental safety
|April 28, 2025
概括
怀孕期间高温显著增加了自发流产 (SA) 的风险. 在炎热的气候和低收入国家的孕妇特别容易受到这种风险的影响.
科学领域:
- 环境健康 环境健康
- 生殖流行病学 生殖流行病学
- 孕产妇健康 孕产妇健康
背景情况:
- 高环境温度对孕妇构成潜在的风险.
- 之前对高温暴露和自发流产 (SA) 的研究已经产生了不一致的结果.
- 澄清暴露于热量和SA之间的关联对于孕产妇健康指导至关重要.
研究的目的:
- 系统地审查和分析现有的关于高温暴露对自发流产 (SA) 影响的文献.
- 量化与母亲暴露于环境温度升高相关的SA风险.
主要方法:
- 在四个主要数据库 (Web of Science,Cochrane Library,PubMed,EMBASE) 进行了系统的文献搜索,截至2024年6月.
- 在应用预先定义的纳入和排除标准后,包括了9项相关研究.
- 进行了元分析,以计算高温暴露后SA的整体几率比率 (OR).
主要成果:
- 母亲暴露于高环境温度与自发流产风险增加显著相关 (OR:1.09;95% CI:1.02,1.15).
- 亚组分析显示,气候模式有助于观察到的异质性.
- 在炎热地区和低收入国家,孕妇在暴露于热量的情况下,对SA的敏感性增加.
- 对28周前SA重点研究的分析也表明风险增加 (OR: 1.10;95% CI: 1.02,1.18).
结论:
- 怀孕期间高温与自发流产风险增加有关.
- 气候模式在与热暴露相关的SA风险异质性中发挥着重要作用.
- 这项研究为预防SA提供了宝贵的见解,强调了气象因素对怀孕结果的影响.
相关概念视频
Increased Body Temperature
619
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
619
Homeostatic Imbalances in Body Temperature
75
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
75
Factors Affecting Body Temperature
3.6K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
3.6K
Spermatogenesis
101.8K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
101.8K
Decreased Body Temperature
580
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
580
Effects of Temperature on Free Energy
24.8K
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:
24.8K


