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EN
Blood tests were performed on 150 females sea trouts Salmo trutta m. trutta L. during four spawning seasons (2014–2017). Fish were caught on a Polish Angling Association trapping point, the Słupia River, Słupsk (northern Poland). The blood for analysis was drawn from caudal vein of 56 healthy and 94 UDN (Ulcerative Dermal Necrosis) – infected females. Fish were divided into three groups: (1) healthy, with no visible signs of UDN, (2) sick, with up to 10% skin damage and (3) agonal, where more than 10% of body surface was infected. Statistically important decrease in red blood cell count (RBC), hemoglobin concentration (HGB) and hematocrit (HCT) were found between sick and agonal fish groups. Concentration of total plasma protein and albumin decreased, in relation to fish health deterioration. Blood urea nitrogen (BUN) had an inverse proportionality to total plasma protein and albumin concentration. Based on decrease of RBC, HGB and HCT due to UDN symptoms development a decrease in fish condition was observed. Significantly higher urea concentrations observed in agonal fish may indicates respiratory and excretory systems failure.
EN
The aim our study was qualitative and quantitative analysis of white blood morphometric elements of peripheral blood (determining the quantity, blood cells dimension and several hematological values) in White Stork chicks. One of the aims was to indicate whether the sex relevantly influences the variety of the examined white blood indicators. White blood cells parameters of 53 White Stork chicks, with molecularly marked sex, was examined. Blood samples were collected in southern Poland (around Krapkowice town, near Opole city). Lymphocytes of White Storks (mean 37% for females and males) were identified as round cells with dark purple non-lobed, eccentrically positioned nucleus. Among the whole population we differentiated small lymphocytes: with diameters of 5.31 ± 0.65 μm in males and 5.57 ± 0.59 μm in females, and large lymphocytes with a diameter of 8.10 ± 0.66 μm and 8.28 ± 0.74 μm, respectively in females and males. Monocytes (mean 8% for female and males) were the largest leukocytes found in the blood film of White Stork, measuring 13.40 ± 0.97 μm for males and 13.09 ± 1.05 μm for females in diameter. The cytoplasm was abundant and it stained blue-gray, very often contained vacuoles. Heterophils (mean 42.7%) were the largest in granular leukocytes group. They were round and 11.14 ± 0.65 μm for males and 11.01 ± 0.48 μm for females in diameter. The nucleus of heterophils was lobed, usually with two or three lobes. The cytoplasm contained brick-red, elongated granules. Eosinophils (mean 9.44%) were round cells, with a diameter of 10.72 ± 0.49 μm and 10.97 ± 0.53 μm, respectively in males and females. The nucleus was lobed and mostly stained clear blue and contained red-orange, round or rod-shaped granules. Basophils (mean 1.84%) were round and contained dark blue granules, with average of 9.56 ± 0.78 and 9.13 ± 0.84 μm in diameter, for males and females. The nucleus was usually non-lobed. The H/L ratio was 4/4 for both sexes. No significant differences in levels and types of leukocytes between male and female juvenile storks have been observed.
EN
Hematology emerged from the study of internal diseases in the twentieth century. Its history can be divided into three periods: the first (elementary) – separation from internal diseases, the second (interdisciplinary) – development by combining the achievements from other fields and joint activities of research teams, and the third (which is difficult to label as it is ongoing) – cognition at the genetic and molecular level. Thanks to the progress of science (immunology, serology, genetics, cytogenetics, genetic engineering, etc.) and the use of their discoveries in broadly-understood hematology, there has been a spectacular change in the knowledge about blood diseases and prognosis. The spectrum of treatment of chronic diseases has been expanded, improving the quality of patients’ lives, and the diagnostic possibilities have been enlarged. The history of such an important field of medicine has been little studied in Poland. This article aims to justify the need to research the history of Polish hematology.
EN
One of the main approaches to monitoring the welfare of wild mammal populations in the wild is animal health estimation based on an analysis of their physiological parameters. To assess that for the natural felid populations, we analyzed adrenal activity level, white blood cells (WBC) counts and occurrence of seropositive reactions to different diseases. The first study was conducted in the Southwest Primorye, in natural habitats of Far Eastern leopard. Unevenly cold and snowy winters in 2010 and 2011 provided extreme natural conditions for overwintering mammals across the Russian Far East. Adrenocortical activity of leopards was significantly higher in 2011 (fecal cortisol level was 712.7 ± 92.4 ng g-1) than in 2010 (361.4 ± 80.5 ng g-1). We suggest that abundance and availability of weakened deer and carcasses could facilitate hunting for leopards and help them to avoid starvation. In the second study we used WBC counts as a health index for three felid species: Pallas cat (Daursky State Nature Biosphere Reserve, 2010), Far Eastern leopard (Southwestern Prymorie, 2011), Siberian tiger (Ussuriskii Reserve, 2010-2011). The ratio of neutrophils to lymphocytes (N:L) was used as an indicator of stress and/or disease state. Occurrence of seropositive reactions to 12 different pathogens was analyzed in all the animals after the hematological analysis. Pallas cats had the lowest N:L ratio (1.0 ± 0.1), significantly differing from leopards (42.8 ± 16.0) and tigers (24.5 ± 9.2). The N:L ratio correlated with the occurrence of seropositive reactions but not with the pathogen diversity. Pallas cats had the lowest occurrence of positive reactions to 4 pathogens: Toxoplasma gondii (12.5%), Mycoplasma sp. (12.5%), influenza A (7.1%), and feline leukemia virus (8.3%). Leopards had the highest N:L and occurrence of seropositive reactions only to 2 infections: T. gondii (16.6%) and Candida sp. (100%). On the contrary, tigers had positive responses to 6 pathogens, including canine distemper (7.7%), feline immunodeficiency virus (8.3%) and Aujeszky's disease (31%), which were not found in other cats. Values of N:L depended also on the time spent to get blood samples. In the big felid species effects of glucocorticoids on the WBC ratio (neutrophilia) were obtained in blood samples from anesthetized animals, taken more than 2 hours after capture. In Pallas cats blood samples were collected within 13 ± 2 min without anesthesia. Thus the high N:L ratio in big felids can be explained by several reasons: stress of capture, immunosuppression and a high diversity of detected infections. The present findings may have important implications for creation of effective conservation strategies of rare felid species in the wild.
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