Blood Hemoglobin Content and Metabolic Performance of Arctic Tern Chicks Sterna paradisaea

1996 ◽  
Vol 27 (2) ◽  
pp. 112 ◽  
Author(s):  
Claus Bech ◽  
Marcel Klaassen

2005 ◽  
Vol 294 ◽  
pp. 189-200 ◽  
Author(s):  
LD Rutherford ◽  
EV Thuesen


Biomeditsina ◽  
2020 ◽  
pp. 39-46
Author(s):  
A. S. Samoilov ◽  
Yu. D. Udalov ◽  
M. V. Sheyanov ◽  
A. V. Gholinsky ◽  
A. B. Litvinenko

This communication presents the experience of using mobile pressure chambers in patients with the confi rmed novel coronavirus infection in hospital settings. The obtained preliminary results indicate positive antihypoxic effects of hyperbaric oxygen therapy (HBO) applied in the form of increased saturation. After a session of HBO, patients demonstrated an increase in the oxygen saturation of capillary blood hemoglobin at the average level of 3.71 points. Differences between SatO2 levels prior to and following HBO treatment were signifi cant in the CT2, CT3 and CT4 groups (p0.05). As expected, the effi cacy of HBO in terms of the oxygen saturation of capillary blood hemoglobin was the greatest in the patient groups showing pronounced clinical and radiological changes in the lungs.





2019 ◽  
Vol 24 (2) ◽  
pp. 161-166 ◽  
Author(s):  
О. A. Uspenskaya ◽  
S. A. Spiridonova

Relevance. One of the causes of chronic disease is herpetic infection, lifelong persistence in the human body and activates the macrophage protection system, which leads to disruption of iron utilization by the cells of the hematopoietic system and the development of anemia of chronic disease. To prove the influence of herpesvirus infection on the occurrence of anemia of chronic disease.Materials and methods. The study involved 75 people suffering from herpes-viral infection. 3 groups were allocated: the frst group (25 people) received acyclovir 1 tablet (200 mg) 5 times a day, 5 days; The 2-nd group (25 people) used famvir for 1 tablet (250 mg) 2 times a day, 5 days; The third group (25 people) – famvir 1 tablet (250 mg) 2 times a day, 5 days and kagocel 2 tablets (12 mg) 3 times a day, 5 days.Result. All subjects examined at the time of treatment showed an increase in the content of IL 1β mRNK and TNF-α and a decrease in mRNK of IL 8 and IL 10; on day 14 of the study, a decrease in IL 1β mRNK and TNF-α mRNK and an increase in IL 10 mRNK. In the study of erythrocyte indices – the average volume of erythrocytes and the average hemoglobin content in erythrocyte and the parameters of iron-serum iron metabolism and the total iron binding capacity of the serum, slight deviations from the norm were obtained.Conclusions. Thus, we concluded that the cause of anemia, in addition to the lack of iron, can be chronic herpesvirus infection, and thus timely treatment of a viral infection excludes the use of ferrotherapy.



The article is devoted to the solution of an urgent problem- influence of different lighting modes on the dairy productivity of cows. 2 groups of cows with 20 heads each were formed. In control group, light in the cowshed was 50-75 Lux for a light period of 7.5 h in January to 16.5 h in June, and in experimental group - 150-200 Lux and 16 h, respectively. It was found that the intensity and duration of illumination affects physiological state, reproductive ability and milk productivity of cows. In the experimental group of cows, compared with the control group, hemoglobin content in blood increased by 4.6% (P < 0.01), red blood cells - by 20.6% (P < 0.05), total protein - by 11.2% (P < 0.001), glucose - by 39.1% (P < 0.05). There was a tendency to increase the total calcium and inorganic phosphorus in blood serum of cows of the experimental group. The level of alkaline phosphatase in blood serum of cows in the control group was 71.5% (P < 0.01) higher than that of cows in the experimental group. Milk yield per 1 cow in the experimental cowshed was 433 kg more than in the control. The cost of 1 kg of milk in the experimental group was 0.94 rubles lower, and the profitability of milk production and sales is 9.42% higher than in the control group. To increase the milk productivity of cows, it is recommended to increase light level in barns for tethered keeping to 150-200 Lux, with the duration of lighting in the winter and transition periods of year up to 16 hours per day.



2020 ◽  
Author(s):  
Jeremy J. Hatch ◽  
Michael Gochfeld ◽  
Joanna Burger ◽  
Ernest Garcia
Keyword(s):  


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Olga V. Bondareva ◽  
Nadezhda A. Potapova ◽  
Kirill A. Konovalov ◽  
Tatyana V. Petrova ◽  
Natalia I. Abramson

Abstract Background Mitochondrial genes encode proteins involved in oxidative phosphorylation. Variations in lifestyle and ecological niche can be directly reflected in metabolic performance. Subterranean rodents represent a good model for testing hypotheses on adaptive evolution driven by important ecological shifts. Voles and lemmings of the subfamily Arvicolinae (Rodentia: Cricetidae) provide a good example for studies of adaptive radiation. This is the youngest group within the order Rodentia showing the fastest rates of diversification, including the transition to the subterranean lifestyle in several phylogenetically independent lineages. Results We evaluated the signatures of selection in the mitochondrial cytochrome b (cytB) gene in 62 Arvicolinae species characterized by either subterranean or surface-dwelling lifestyle by assessing amino acid sequence variation, exploring the functional consequences of the observed variation in the tertiary protein structure, and estimating selection pressure. Our analysis revealed that: (1) three of the convergent amino acid substitutions were found among phylogenetically distant subterranean species and (2) these substitutions may have an influence on the protein complex structure, (3) cytB showed an increased ω and evidence of relaxed selection in subterranean lineages, relative to non-subterranean, and (4) eight protein domains possess increased nonsynonymous substitutions ratio in subterranean species. Conclusions Our study provides insights into the adaptive evolution of the cytochrome b gene in the Arvicolinae subfamily and its potential implications in the molecular mechanism of adaptation. We present a framework for future characterizations of the impact of specific mutations on the function, physiology, and interactions of the mtDNA-encoded proteins involved in oxidative phosphorylation.



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