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相关概念视频

Connective Tissue Cell Types01:22

Connective Tissue Cell Types

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Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
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Immunocytochemistry and Immunohistochemistry01:22

Immunocytochemistry and Immunohistochemistry

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Immunocytochemistry (ICC) and immunohistochemistry (IHC) are techniques that use antibodies to check for specific proteins or antigens in a sample. The technique was first published by Albert Coons in 1941 to detect the presence of pneumococcal antigen in tissue sections from mice infected with Pneumococcus. Immunocytochemistry helps localization of proteins or antigens in individual cells like blood cells, stem cells, etc., while immunohistochemistry does the same for tissue samples.
These...
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Applications of IR Spectroscopy: Overview01:11

Applications of IR Spectroscopy: Overview

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The non-destructive nature and ability to provide valuable chemical information make IR spectroscopy a versatile technique with broad applications in various scientific and industrial fields. IR spectroscopy is commonly used to identify and characterize organic and inorganic compounds. It provides information about the functional groups present in a molecule and the bonding between atoms. This helps in the structural elucidation of compounds during organic synthesis, pharmaceutical research,...
564
Minerals01:26

Minerals

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Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
 
Major...
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Cancer Prevention02:59

Cancer Prevention

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
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Lifestyle Factors and Health01:20

Lifestyle Factors and Health

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Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
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相关实验视频

Updated: Jun 24, 2025

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
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A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

Published on: April 11, 2014

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维生素C适用于所有人吗?

Angelique de Man1, Micah T Long2, Christian Stoppe3,4

  • 1Amsterdam UMC, location Vrije Universiteit, Department of Intensive Care, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam, The Netherland.

Current opinion in critical care
|June 6, 2024
PubMed
概括
此摘要是机器生成的。

高剂量的维生素C在严重疾病中显示出混合的结果. 虽然一些研究表明败血症和COVID-19的危害,但另一些研究表明心脏手术和烧伤患者的好处,需要进一步研究最佳剂量.

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Improved UPLC-UV Method for the Quantification of Vitamin C in Lettuce Varieties Lactuca sativa L. and Crop Wild Relatives Lactuca spp.
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Generation of Self-assembled Vascularized Human Skin Equivalents
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相关实验视频

Last Updated: Jun 24, 2025

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
11:56

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

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Improved UPLC-UV Method for the Quantification of Vitamin C in Lettuce Varieties Lactuca sativa L. and Crop Wild Relatives Lactuca spp.
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Improved UPLC-UV Method for the Quantification of Vitamin C in Lettuce Varieties Lactuca sativa L. and Crop Wild Relatives Lactuca spp.

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Generation of Self-assembled Vascularized Human Skin Equivalents
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科学领域:

  • 关键护理医学 关键护理医学
  • 营养生物化学 营养生物化学
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 维生素C (甲酸) 在许多酶反应中充当电子捐赠体,这表明在危急疾病中具有潜在的治疗作用.
  • 最近的随机对照试验 (RCT) 对重症患者的高剂量维生素C进行了研究,结果各不相同.

研究的目的:

  • 审查最近关于维生素C作为重症患者辅助治疗的有效性和安全性的证据.
  • 为了探索在特定条件的潜在益处,如败血症,COVID-19,和缺血症/再输液损伤.

主要方法:

  • 分析了近期针对败血症,COVID-19,心脏手术和烧伤患者的大型随机对照试验 (RCT).
  • 审查研究,检查维生素C对临床结果,生物标志物和生理参数的影响.

主要成果:

  • 两项大型RCT表明,高剂量维生素C对败血症和COVID-19患者的潜在危害.
  • 对心脏手术和烧伤患者的研究报告了改善的结果,包括心脏酶减少和流体需求减少.
  • 维生素C可能有利于患有缺血/再损伤的患者,如心脏骤停后或器官移植后.

结论:

  • 目前的证据是相互矛盾的,在一些人群中存在潜在的危害,而在另一些人群中则存在潜在的益处.
  • 维生素C在危急疾病中的最佳时间,持续时间和个性化剂量策略需要进一步调查.
  • 建议确保足够的基础维生素C水平,但确切的要求仍未确定.