The erythrocyte sedimentation rate (ESR) remains the most widely used laboratory test for monitoring the course of infections, inflammatory diseases, and some types of cancer. Several test methods have been developed recently, and as a result the safety and reliability of ESR testing procedures have improved. The method recommended by the International Council for Standardization in Haematology...

BACKGROUND The Westergren method is the golden standard for measuring erythrocyte sedimentation rate (ESR). All ESR methods should agree with the standardized method of the International Council for Standardization in Hematology (ICSH). Citrate samples are commonly used for ESR. This extra sample adds costs and can be inconvenient for the patient. Therefore, some new automated ESR analyzers use...

Background: Ramadan fasting is an obligation for many Muslims around the world who abstain from eating and drinking for one month, which has different medical and physiological effects, such as reducing blood pressure, lipid profile, blood glucose, and body weight. It has also been hypothesized that Ramadan fasting may induce some changes in the hematologic parameters. Thus, we aimed to investi...

Background. Erythrocyte sedimentation rate (ESR) is a valuable laboratory tool in evaluation of infectious, inflammatory, and malignant diseases. Red blood cells in outside from the body precipitate due to their higher density than the plasma. In this study we discuss the IVIG effect on ESR in different diseases and different ages. Methods and Materials. Fifty patients under 12 years old who ha...

Unstirred suspensions of erythrocytes form stable spherical aggregates of uniform size. The radius of the spheres depends upon the suspending medium and the hematocrit. Erythrocyte suspensions will undergo sedimentation only after these aggregates are formed. Aggregation is a two-step process: first, erythrocytes associate in long chains (rouleau formation). Next, these chains form spheres of u...

Investigation have been carried out into the salt-induced higher-order folding in the transcriptionally active chromatin region of rat liver nuclei by nuclease digestion, sedimentation and CD. The sensitivity of active chromatin in nuclei to micrococcal nuclease was suppressed by raising the ionic strength from 25 to 90 mM, indicating the occurrence of salt-induced condensation. The rate of sed...

A striking feature in many forms of rheumatic disease is the high sedimentation rate of the erythrocytes. The rate of fall of erythrocytes in plasma may be expressed as sedimentation rate (S.R.), or as suspension stability (S.S.). The S.R. (Westergren, Linzenmeier) is expressed by a figure indicating the fall of the column of the red cells in a 200 mm. tube, while the S.S. is expressed as the h...

Estimates for the sedimentation rate of realistic ice crystals at sizes smaller than 100 μm are presented. These calculations, which exploit new results for the capacitance of ice crystals, are compared with laboratory studies and found to be in good agreement. The results highlight a weakness in contemporary ice particle fall speed parameterisations for very small crystals, which can lead to s...

Studies have highlighted the occurrence of Reactive thrombocytosis during the active phase of pulmonary tuberculosis. Role of platelets in inflammatory response is attributed as the cause. But very few studies have demonstrated changes in Platelet related indices in such cases. Hence we aimed to study the relation between platelet indices and an acute phase reactant, Erythrocyte sedimentation r...

The aim of this work was to generate an inventory of the data on radiocarbon datings obtained from sediments of the São Paulo Bight (southern Brazilian upper margin) and to analyze the data in terms of Late Quaternary sedimentary processes and sedimentation rates. A total of 238 radiocarbon datings from materials collected using differents ampling procedures was considered for this work. The se...