在腹膜透析中,蛋白质能量浪费与腹膜膜运输之间的关联
Gabriela Leal-Escobar1, Karla Berenice Cano Escobar1, Magdalena Madero1
1Department of Nephrology. Instituto Nacional de Cardiología Ignacio Chávez.
Nutricion hospitalaria
|July 22, 2024
概括
在腹膜透析患者中,快速腹膜运输 (FT-PET) 与蛋白质能量浪费 (PEW) 有关. 这表明个性化的营养干预措施可能对患FT-PET的PD患者有益.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 临床营养学 临床营养学
- 腹腔周围透析 腹腔周围透析
背景情况:
- 快速腹膜运输 (FT-PET) 与腹膜白蛋白损失和蛋白质能量浪费 (PEW) 的增加有关.
- FT-PET和PEW之间的确切关系需要在腹腔透析 (PD) 患者中进一步调查.
研究的目的:
- 为了比较患有快速运输腹膜 (FT-PET) 和慢速运输腹膜 (ST-PET) 的患者之间的营养参数.
- 在PD患者中分析FT-PET和PEW之间的关联.
主要方法:
- 一项涉及143名PD患者的横截面研究.
- 腹膜运输通过腹膜平衡试验 (PET) 进行评估.
- 使用营养不良炎症评分 (MIS) 确定PEW;用于关联分析的后勤回归.
主要成果:
- 在FT-PET组呈现出较高的低albuminemia,,较低的相角度,减少的能量摄入量,并提高了MIS得分.
- 在单变量 (OR:3.5) 和多变量 (OR:2.6) 分析中,FT-PET与PEW显著相关.
- 这种关联在PD启动后进行基线PET的患者中持续存在 (OR:6.2).
结论:
- 快速腹膜运输与蛋白质能量浪费显著相关,根据MIS评分进行评估.
- 未来的临床试验应探索针对PD患者周周膜运输特征的营养干预措施.
相关概念视频
The Significance of Membrane Transport
24.9K
The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
24.9K
Dialysis
625
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
625
Membrane Proteins
18.9K
Plasma membranes have integral transmembrane proteins involved in facilitated transport. These proteins are collectively referred to as transport proteins, and they function as either channels for the material or as carriers themselves. Channel proteins have hydrophilic domains exposed to the intracellular and extracellular fluids and a hydrophilic channel through their core that provides a hydrated opening for solutes to pass through the membrane layers. Passage through the channel allows...
18.9K
Protein Diffusion in the Membrane
4.3K
Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
4.3K
Overview of Protein Metabolism
932
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
932
Pore Transport and Ion-Pair Transport
408
Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
408


