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関連する概念動画

Oral Hypoglycemic Agents: Biguanides and Glitazones01:26

Oral Hypoglycemic Agents: Biguanides and Glitazones

Biguanides, particularly metformin (Glucophage), are insulin sensitizers that enhance glucose uptake, thereby reducing insulin resistance. Unlike sulfonylureas, metformin doesn't prompt insulin secretion, which helps to curb hypoglycemia risk. Metformin is beneficial in treating conditions like polycystic ovary syndrome due to its insulin-resistance reduction capability. The drug's primary action involves curtailing hepatic gluconeogenesis, a significant contributor to high blood glucose levels...
Protein Glycosylation01:25

Protein Glycosylation

Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...
Hyperglycemia01:29

Hyperglycemia

Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...
Oral Hypoglycemic Agents: Glinides01:06

Oral Hypoglycemic Agents: Glinides

Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively manages...
Glucose Absorption Into the Small Intestine01:26

Glucose Absorption Into the Small Intestine

Complex carbohydrates consumed cannot be absorbed into the small intestine in their original form. First, they must be hydrolyzed to a monosaccharide form such as glucose or galactose. These monosaccharides are then transported across the intestinal membrane and into the blood via transcellular transport. The intestinal epithelial cells allow the movement of these monosaccharides with a defined 'entry' through membrane transporter proteins present on their apical membrane and 'exit' via the...
Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...

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関連する実験動画

Updated: Jun 6, 2026

Glycomics-Guided Glycoproteomics Facilitates Comprehensive Profiling of the Glycoproteome in Complex Tumor Microenvironments
10:59

Glycomics-Guided Glycoproteomics Facilitates Comprehensive Profiling of the Glycoproteome in Complex Tumor Microenvironments

Published on: February 7, 2025

グライコミックは大ヒット.

Gerald W Hart1, Ronald J Copeland

  • 1Department of Biological Chemistry, Johns Hopkins University, Baltimore, MD 21205-2185, USA. gwhart@jhmi.edu

Cell
|November 30, 2010
PubMed
まとめ
この要約は機械生成です。

細胞は炭水化物をエネルギー源として利用する. タンパク質と脂質の多様な炭水化物構造であるグリカンは,細胞機能に不可欠であり,ヒトの病気に影響を与えると,グリコミクス研究によって明らかになりました.

さらに関連する動画

Glycan Node Analysis: A Bottom-up Approach to Glycomics
11:36

Glycan Node Analysis: A Bottom-up Approach to Glycomics

Published on: May 22, 2016

関連する実験動画

Last Updated: Jun 6, 2026

Glycomics-Guided Glycoproteomics Facilitates Comprehensive Profiling of the Glycoproteome in Complex Tumor Microenvironments
10:59

Glycomics-Guided Glycoproteomics Facilitates Comprehensive Profiling of the Glycoproteome in Complex Tumor Microenvironments

Published on: February 7, 2025

Glycan Node Analysis: A Bottom-up Approach to Glycomics
11:36

Glycan Node Analysis: A Bottom-up Approach to Glycomics

Published on: May 22, 2016

科学分野:

  • バイオケミストリー バイオケミストリー
  • 分子生物学は分子生物学である.
  • グライコサイエンスの科学

背景:

  • 炭水化物は,細胞の基本的なエネルギー源である.
  • タンパク質と脂質に結合した複雑な炭水化物構造であるグリカンは,最も豊富で多様な生物分子のクラスです.
  • グリカンは,多くの生物学的プロセスにおいて重要な役割を果たします.

研究 の 目的:

  • 生物系におけるグリカンの機能的重要性を強調する.
  • ヒトの健康と病気に対するグリカン構造の影響を強調するために.
  • グライコミックスの分野における最近の進歩を要約すると.

主な方法:

  • グライコミクス: グライカンの大規模な研究.
  • プロテオミクスとリピドミクス:グリカン結合の分析.
  • バイオインフォマティクス:グリコミックデータを解釈する.

主要な成果:

  • グリカンは,驚くべき構造的多様性を表しています.
  • グリカンは,幅広い細胞機能に関与しています.
  • 異常なグリコシライゼーションパターンは,様々なヒト疾患と関連しています.

結論:

  • グリカンは,深い生物学的機能を持つ不可欠な分子です.
  • グライカンの役割を理解することは,病気のメカニズムを解読する上で極めて重要です.
  • グライコミクスの進歩は,細胞のプロセスと病気に関する新しい洞察を提供します.
  • グライカンに焦点を当てた研究は,治療的介入の可能性を秘めています.