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相关概念视频

Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

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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.
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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
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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.
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Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
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Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
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植物体补充剂提供供应.

Onanong Nuchuchua1, Ratchanon Inpan2, Wanwisa Srinuanchai1

  • 1National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand.

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概括
此摘要是机器生成的。

Gymnema inodorum (GI) 的植物体通过改善植物营养素的输送来增强抗炎作用. 然而,植物体配方在本研究中略有降低了抗胰岛素耐药性.

关键词:
这是Gymnema inodorum的提取物.脂肪细胞 (adipocytes) 是一种脂肪细胞.这是一种抗炎症药物.抗胰岛素耐药性是一种抗胰岛素耐药性.巨细胞是什么?巨细胞是什么?植物营养素的输送植物体植物体是如何形成的

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科学领域:

  • 植物化学 植物化学
  • 纳米技术纳米技术
  • 药理学 药理学是指药理学的学科.

背景情况:

  • Gymnema inodorum (GI) 是一种泰国绿叶植物,具有对代谢糖尿病控制的潜力.
  • GI的活性化合物的非极性特性限制了它们的生物可用性.
  • 植物体技术提供了一种新的方法来增强植物营养素的输送.

研究的目的:

  • 为了开发GI叶子提取物的植物体配方.
  • 为了评估GI植物体的抗炎和抗胰岛素耐药活性.
  • 评估植物酶封装对GI植物营养素生物可用性的影响.

主要方法:

  • 将GI提取物制成植物体 (160-180nm纳米粒子).
  • 植物体结构,表面电荷和植物营养素封装的表征.
  • 在体外评估抗炎活性 (巨细胞中氧化的产生) 和抗胰岛素耐药性 (脂肪细胞中葡萄糖吸收和脂质降解).

主要成果:

  • 植物体成功地将GI提取物分散在水溶液中,形成球形纳米粒子.
  • 胃肠道植物化合物嵌入了脂双层中,改变了表面电荷至-35至-45mV.
  • 植物体显著增强了胃肠道提取物的抗炎活性,但略有降低了其抗胰岛素抵抗作用.

结论:

  • 纳米植物体配方是胃肠道植物化学物质的有希望的载体,特别是在抗炎症应用中.
  • 脂成分可能调节GI提取物的抗胰岛素抵抗作用.
  • 需要进一步的研究来优化植物体配方,以全面预防T2DM.