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相关概念视频

Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Leaky Scanning02:28

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Infectious Diseases and Their Occurrence01:28

Infectious Diseases and Their Occurrence

Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
Introduction to Language of Pathophysiology l01:25

Introduction to Language of Pathophysiology l

Pathophysiology investigates how biological mechanisms—typically starting at the cellular level—disrupt normal bodily functions. It bridges anatomy and physiology to explain the progression of disease. With this foundation, it is important to understand the following key terms used to describe disease processes: Diagnosis:The process of identifying a disease using clinical evaluation, including signs (objective evidence like rashes), symptoms (subjective experiences like pain), laboratory test...

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相关实验视频

Updated: Jun 28, 2026

The Measurement and Treatment of Suppression in Amblyopia
08:34

The Measurement and Treatment of Suppression in Amblyopia

Published on: December 14, 2012

49.6K

破译盲:来自儿科研究的流行病学见解

Kavita R Bhatnagar1, Falguni Roy1, Kirti Jaisingh1

  • 1Ophthalmology, All India Institute of Medical Sciences, Jodhpur, Jodhpur, IND.

Cureus
|May 8, 2025
PubMed
概括

这项研究发现,1.66%的3-12岁儿童患有眼盲,这是儿童失明的主要可逆原因. 关键的危险因素包括折射误差,如白症和孕产妇肥胖前期.

关键词:
雄心勃勃的视野 (Amblyopia) 是一个很大的问题.异质形症是一种异质形症.标记障碍症 (astigmatism) 是一种童年失明 童年失明其他非眼部风险因素眼睛的风险因素是什么折射性双眼视障碍 - - 折射性双眼视障碍是指折射性双眼视障碍.查计划 查计划刺激剥夺 剥夺刺激这是一种眼 (strabismus).

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科学领域:

  • 眼科医生 眼科 眼科
  • 儿科眼科护理 儿科眼科护理
  • 公共卫生 公共卫生

背景情况:

  • 眼,或"惰的眼睛",影响大量的儿童,影响视觉发育.
  • 了解流行率和风险因素对于有效的早期干预策略至关重要.

研究的目的:

  • 确定印度3-12岁儿童眼的患病率.
  • 识别与儿童眼相关的眼部和非眼部风险因素.

主要方法:

  • 一项涉及印度西部1,683名3-12岁儿童的横截面研究.
  • 综合眼科检查和家长问卷用于风险因素评估.
  • 两眼盲的分类为折射性,斜视性和刺激剥夺类型.

主要成果:

  • 视的患病率为1.66%,折射性视是最常见的类型 (71.43%).
  • 头是主要的安布利奥基因因子,其次是超视.
  • 确定了重要的非眼部风险因素是母亲的肥胖前期和低出生体重.

结论:

  • 儿童的眼与可修改的眼部和非眼部因素有关.
  • 早期检测和干预对于预防不可逆转的视力损失至关重要.
  • 推实施学前野视查计划,以获得最佳的视觉结果.