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相关概念视频

Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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Bioavailability Enhancement: Drug Solubility Enhancement01:16

Bioavailability Enhancement: Drug Solubility Enhancement

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Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
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Bioavailability Enhancement: Drug Permeability Enhancement01:27

Bioavailability Enhancement: Drug Permeability Enhancement

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Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
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Lipid Absorption01:24

Lipid Absorption

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Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
These breakdown products bind with bile salts and lecithin to form micelles, which quickly pass between microvilli to come in close contact with the apical...
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Determination of Multiple Dosing Parameters: Loading and Maintenance Doses01:25

Determination of Multiple Dosing Parameters: Loading and Maintenance Doses

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A loading dose is an essential pharmacological strategy to rapidly achieve the target plasma drug concentration necessary for an immediate therapeutic effect. This approach is especially critical for drugs characterized by slow absorption or extended half-lives, where delaying therapeutic plasma levels could compromise treatment outcomes. By administering a loading dose, clinicians ensure a prompt onset of drug action, even for agents with complex pharmacokinetic profiles.Achieving steady-state...
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Body:Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug...
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Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography
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确定优先的国家,以扩大小量脂基营养补充剂的规模.

Navideh Noori1, Christine P Stewart2, Christine M McDonald2,3

  • 1Institute for Disease Modeling, Gates Foundation, Seattle, Washington, USA Navideh.Noori@gatesfoundation.org.

BMJ global health
|December 11, 2025
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概括
此摘要是机器生成的。

少量基于脂质的营养补充剂 (SQ-LNS) 可以预防儿童营养不良和死亡率. 在高负担国家,主要是在撒哈拉以南非洲,扩大SQ-LNS对于解决全球营养危机至关重要.

关键词:
儿童健康 儿童健康营养 营养 营养 营养 营养预防策略 预防策略阻碍发育 阻碍发育是什么意思

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科学领域:

  • 全球健康 全球健康
  • 营养科学 营养科学
  • 儿科健康 儿科健康

背景情况:

  • 全球范围内,营养不良导致近一半5岁以下儿童的死亡.
  • 有证据表明,少量基于脂质的营养补充剂 (SQ-LNS) 在低收入和中等收入国家 (LMICs) 的6-23个月儿童中预防消耗,衰老,贫血和死亡率.
  • 当前全球粮食不安全和营养危机迫切需要扩大SQ-LNS等有效的预防性干预措施.

研究的目的:

  • 确定儿童浪费,发育迟缓和死亡率负担最大的国家,优先考虑SQ-LNS扩大规模.
  • 通过护理级联模型评估SQ-LNS对儿童死亡率,发育迟缓和浪费的潜在影响.
  • 在前20个国家中确定针对性干预的高负担次国家区域.

主要方法:

  • 分析国家调查数据 (人口和健康调查,多指标集群调查) 和救命工具,以确定儿童营养不良和死亡负担最高的国家.
  • 应用护理级联模型,使用国家一级估计来预测SQ-LNS的影响.
  • 在使用最新可用调查数据的20个负担最高的国家进行了地方分析.

主要成果:

  • 确定了儿童消耗,发育迟缓和死亡率负担最高的前20个国家,其中许多位于撒哈拉以南非洲,一些位于南亚/东南亚.
  • 一些确定的国家有超过10年的调查数据,突出了潜在的数据差距.
  • 护理级联模型表明,广泛提供SQ-LNS可以避免大量的衰减和浪费病例和死亡.
  • 一些高负担的国家也面临着严重的急性粮食不安全.

结论:

  • 在前20个国家中,大多数国家都集中在撒哈拉以南非洲,其他国家则在南亚和东南亚.
  • 这种地理集群强调了在这些地区采取有针对性的干预措施的必要性,以打击儿童营养不良.
  • 在这些高负担地区有针对性的SQ-LNS扩大规模,为减少儿童死亡率和发病率提供了重大机会.