scholarly journals The effect of different storage times on the oxygen-carrying capacity of the exosomes of red blood cells

2021 ◽  
Vol 30 (4) ◽  
pp. 387-394
Author(s):  
Li-Shuang Duan ◽  
Yang Liu ◽  
Zhen-Zhou Li ◽  
Huan Wang ◽  
Xiao-Fang Zhou ◽  
...  
2019 ◽  
Author(s):  
Li-Shuang Duan ◽  
Yang Liu ◽  
Zhen-Zhou Li ◽  
Huan Wang ◽  
Xiao-Fang Zhou ◽  
...  

2010 ◽  
Vol 39 (5) ◽  
pp. 907-912
Author(s):  
陈秀丽 CHEN Xiu-li ◽  
刘军贤 LIU Jun-xian ◽  
申卫东 SHEN Wei-dong ◽  
黎永青 LI Yong-qing ◽  
王桂文 WANG Gui-wen

Author(s):  
Alison Smith

The transfusion of blood products may be required in the pre- and post-operative periods. However, there are inherent risks associated with blood transfusion, and there is not an unlimited supply of blood donations available. When a patient is anaemic, red blood cells should be transfused to maintain the oxygen-carrying capacity of blood. Blood products, such as platelets and fresh frozen plasma, are transfused to correct a coagulopathy and during major haemorrhage. This chapter reviews the physiology of blood, including ABO compatibility and rhesus status, the main blood products available for transfusion, and transfusion policy, including the treatment of major haemorrhage and the refusal of blood products.


2021 ◽  
Vol 17 (1) ◽  
pp. 69-82
Author(s):  
V. V. Moroz ◽  
E. A. Sherstyukova ◽  
E. K. Kozlova ◽  
V. A. Sergunova

Red blood cells are the most required blood transfusion products worldwide. Safety and efficacy of blood transfusion are still relevant issues. Clarification of the causes and mechanisms of post-transfusion complications requires additional research.Aim of the review is to summarize the data of clinical and research studies on transfusion of red blood cell suspension with various storage times.Material. We selected 76 sources from Web of Science, Scopus, and RSCI databases containing pertinent clinical and scientific research data, as well as blood transfusion guidelines.Results. We reviewed the main stages of preparation and storage of filtered red blood cells, described biochemical and structural alterations occurring during blood storage, summarized clinical data on post-transfusion complications, and analyzed clinical consequences and molecular structure abnormalities of red blood cells in relation to their storage time.Conclusion. During long-term storage, red blood cells undergo significant structural and metabolic changes. The clinical use of relatively «old» red blood cells increases the risk of post-transfusion complications. However, the pathophysiological differences between «young» and «old» erythrocytes remain unclear. Large clinical and molecular research studies may add to our understanding of the complex issues related to blood transfusion.


Physiology ◽  
2022 ◽  
Author(s):  
Francisco C. Villafuerte ◽  
Tatum S Simonson ◽  
Daniela Bermudez ◽  
Fabiola León-Velarde

Erythrocytosis, or increased production of red blood cells, is one of the most well-documented physiological traits that varies within and among in high-altitude populations. Although a modest increase in blood O2-carrying capacity may be beneficial for life in highland environments, erythrocytosis can also become excessive and lead to maladaptive syndromes such as Chronic Mountain Sickness (CMS).


Author(s):  
Kosuke Ueda ◽  
Hiroto Washida ◽  
Nakazo Watari

IntroductionHemoglobin crystals in the red blood cells were electronmicroscopically reported by Fawcett in the cat myocardium. In the human, Lessin revealed crystal-containing cells in the periphral blood of hemoglobin C disease patients. We found the hemoglobin crystals and its agglutination in the erythrocytes in the renal cortex of the human renal lithiasis, and these patients had no hematological abnormalities or other diseases out of the renal lithiasis. Hemoglobin crystals in the human erythrocytes were confirmed to be the first case in the kidney.Material and MethodsTen cases of the human renal biopsies were performed on the operations of the seven pyelolithotomies and three ureterolithotomies. The each specimens were primarily fixed in cacodylate buffered 3. 0% glutaraldehyde and post fixed in osmic acid, dehydrated in graded concentrations of ethanol, and then embedded in Epon 812. Ultrathin sections, cut on LKB microtome, were doubly stained with uranyl acetate and lead citrate.


Author(s):  
John A. Trotter

Hemoglobin is the specific protein of red blood cells. Those cells in which hemoglobin synthesis is initiated are the earliest cells that can presently be considered to be committed to erythropoiesis. In order to identify such early cells electron microscopically, we have made use of the peroxidatic activity of hemoglobin by reacting the marrow of erythropoietically stimulated guinea pigs with diaminobenzidine (DAB). The reaction product appeared as a diffuse and amorphous electron opacity throughout the cytoplasm of reactive cells. The detection of small density increases of such a diffuse nature required an analytical method more sensitive and reliable than the visual examination of micrographs. A procedure was therefore devised for the evaluation of micrographs (negatives) with a densitometer (Weston Photographic Analyzer).


Author(s):  
Victor Tsutsumi ◽  
Adolfo Martinez-Palomo ◽  
Kyuichi Tanikawa

The protozoan parasite Entamoeba histolytica is the causative agent of amebiasis in man. The trophozoite or motile form is a highly dynamic and pleomorphic cell with a great capacity to destroy tissues. Moreover, the parasite has the singular ability to phagocytize a variety of different live or death cells. Phagocytosis of red blood cells by E. histolytica trophozoites is a complex phenomenon related with amebic pathogenicity and nutrition.


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