PubMed · 13241619
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V A VAL'DMAN. [Sedimentograph].. https://pubmed.ncbi.nlm.nih.gov/13241619/
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Endemic pemphigus foliaceus, and long-term corticotherapy may affect serum lipid levels. The aim of this study was to compare serum lipids of pemphigus foliaceus patients on glucocorticoid therapy to a healthy control group. Fifteen patients receiving prednisone (0.33 +/- 0.22 mg/kg) for at least 12 months and 15 controls were submitted to 48-h food intake records, anthropometry, and biochemical measurements. Data were compared by chi2, Mann-Whitney and Student "t" tests. The groups were matched for gender, age, weight, body mass index, arm circumference and triceps skin fold. No differences were observed in relation to energy, fat, protein and carbohydrate daily intakes, total cholesterol, HDL, LDL, uric acid, and serum creatinine levels. Pemphigus foliaceus patients had higher triglyceride [159 (64-371) vs. 100 (45-133) mg/dl], VLDL [32 (13-74) vs. 20 (9-114) mg/dl] and ESR [44 (9-87) vs. 7 (1-30) mm/h] levels than controls, probably due to metabolic effects of inflammatory disease and corticotherapy.
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To study the microrheological characteristics of RBCs during erythrocyte senescence in vivo, an anemia model of rabbit induced by phenylhydrazine injection was developed. Measurements of the hematocrit, the deformation indexes, the blood viscosity and the sedimentation, etc. were performed in vivo for more than 60 days in the processes of RBC senescence. Obvious changes in the RBC's rheological characteristics were found in this senescent model. Compared with our previously developed Wen's model [1,2] in which the entire RBC population was nearly synchronously produced following the induction of spherocytic anemia in the rabbit with antibody serum, the changes of RBC microrheological characteristics for this model showed approximately the same tendency, although Wen's model with antibody serum was much better in its ability to simulation of the nearly normal physiological conditions than the present one with phenylhydrazine injection. Hence, the present model can serve as a model of RBC senescence under abnormal physiological conditions.