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相关概念视频

Glucose Homeostasis: Regulation of Blood Glucose01:02

Glucose Homeostasis: Regulation of Blood Glucose

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Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...
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Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

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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...
294
Hormones Regulating Blood Glucose01:16

Hormones Regulating Blood Glucose

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Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...
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Glucose Absorption Into the Small Intestine01:26

Glucose Absorption Into the Small Intestine

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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...
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Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

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Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
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Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

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The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...
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Improving IV Insulin Administration in a Community Hospital
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为用户友好的现场葡萄糖检测开发预测框架.

Vinay Kishnani1, Ankur Gupta1

  • 1Department of Mechanical Engineering, Indian Institute of Technology, Jodhpur 342030, Rajasthan, India.

ACS applied bio materials
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PubMed
概括
此摘要是机器生成的。

本研究介绍了一种基于智能手机的系统,用于使用纸质分析设备 (PAD) 和机器学习快速检测葡萄糖. 该框架提供了准确的葡萄糖水平估计,提高了初始疾病查能力.

关键词:
颜色空间的颜色空间.葡萄糖检测 检测葡萄糖的检测机器学习就是机器学习.有光学生物传感器.基于纸张的传感器传感器智能手机的智能手机智能手机的智能手机.智能手机的颜色读取输出.一个用户友好的生物传感框架.

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Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
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Improving IV Insulin Administration in a Community Hospital
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科学领域:

  • 生物医学工程 生物医学工程
  • 分析化学 分析化学
  • 医疗保健中的机器学习

背景情况:

  • 精确的葡萄糖监测对于糖尿病管理至关重要.
  • 现有的方法可能是复杂的,昂贵的,或需要专门的设备.
  • 基于纸张的分析设备 (PAD) 提供了一个有前途的低成本替代方案.

研究的目的:

  • 开发一个用户友好的,基于智能手机的框架,用于使用PAD检测葡萄糖.
  • 评估基托桑和不同照明条件对检测准确性的影响.
  • 应用机器学习算法来增强信号处理和葡萄糖度估计.

主要方法:

  • 使用智能手机摄像头对葡萄糖斑点PAD进行色度分析.
  • 与含有和不含奇多的检测混合物进行比较 (C与WC).
  • 研究了各种照明和智能手机光学效应.
  • 采用了具有色彩空间组合的机器学习分类器 (SVM,神经网络,线性/正方形分辨器).

主要成果:

  • 机器学习模型在葡萄糖检测方面实现了高精度 (高达94.1%).
  • 基托桑的加入通常会提高特定分类器的准确性.
  • 立方SVM在C和WC样本中显示出一致的性能 (精度约93%).
  • 一个盲目测试证实了系统的性能.

结论:

  • 开发的智能手机-PAD框架提供了一种简单,快速和负担得起的葡萄糖检测方法.
  • 机器学习集成提高了 Point-of-care 应用程序的准确性和可靠性.
  • 该系统具有初步疾病查和远程医疗监测的潜力.