可注射避孕药不同地影响生殖道中特定的CD4+HIV-1点细胞,但不是系统性的:对HIV-1获取的影响
Chanel Avenant1, Alexis J Bick1, Johnson M Moliki1
1Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa.
概括
可注射避孕药诺乙氨酸 (NET-EN) 和甲 (DMPA-IM) 对女性生殖道的HIV细胞有不同的作用. 与NET-EN相比,DMPA-IM可能会增加艾滋病毒风险.
科学领域:
- 生殖健康 生殖健康
- 传染病流行病学 传染病流行病学
- 免疫学 免疫学 免疫学
背景情况:
- 注射避孕药在全球广泛使用.
- 观察性研究表明,不同孕激素单独注射剂的HIV易感性各不相同.
- 关于DMPA-IM与NET-EN对艾滋病毒细胞的影响的临床数据有限.
研究的目的:
- 为了比较DMPA-IM和NET-EN对系统性和女性生殖道区的HIV-1点细胞的影响.
- 为了研究这些效应在峰值孕激素度在一个头对头随机试验.
主要方法:
- 在南非,WHICH试验将女性随机分配给DMPA-IM或NET-EN.
- 血液和生殖道细胞通过流细胞计在基线和25周时被分析.
- 关键的HIV-1点细胞 (CD4+细胞) 和它们的标记物被量化.
主要成果:
- 这两种避孕药同样影响了全身CD4+细胞.
- DMPA-IM和NET-EN对女性生殖道细胞群产生了不同的影响.
- 使用DMPA-IM与FGT标细胞的增加有关,特别是在考虑到非研究中的孕激素使用后.
结论:
- 虽然DMPA-IM和NET-EN的系统性影响很小,但它们对FGT的HIV点细胞有不同的影响.
- 与NET-EN相比,DMPA-IM使用可能与FGT的HIV-1感染风险增加有关.
- 需要进一步的研究来了解这些发现的临床影响.
关键词:
CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD4 CD7 CD7 CD7 CD7 CD7 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD9 CD8 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9在DMPA中,DMPA是DMPA.艾滋病毒-1 感染的获取NET-EN 在线网络.这就是PBMCs.女生生殖道的女性生殖道.可以注射的避孕药.相关概念视频
Sexually Transmitted Infections
217
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
217
Retrovirus Life Cycles
45.4K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
45.4K
Drug Delivery: Parenteral Route
337
The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
337
Routes of Drug Administration: Parenteral
1.8K
The administration of drugs via parenteral routes allows for direct drug introduction into the systemic circulation, resulting in high bioavailability because the medication bypasses the harsh conditions of the gastrointestinal tract and hepatic metabolism.
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
1.8K
Immunodeficiency Diseases
842
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
There are three main causes of immunodeficiency...
842
Drug Delivery: Miscellaneous Routes
282
Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection, and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
282


