scholarly journals Relationships between the blood cells, sexual hormones and lipid peroxidation in women with essential hypertension

2019 ◽  
pp. 39-47
Author(s):  
Б.И. Кузник ◽  
Ю.Н. Смоляков ◽  
С.О. Давыдов ◽  
Е.С. Гусева ◽  
М.В. Максименя
Keyword(s):  
Lipid Peroxidation ◽  
Essential Hypertension ◽  
Blood Cells ◽  
Heart Function ◽  
Sexual Hormones ◽  
Healthy Women ◽  
Positive Correlations ◽  
Almost All ◽  
Rbc Count

У женщин, больных гипертонической болезнью, существуют тесные корреляционные взаимосвязи между различными форменными элементами крови и уровнем артериального давления, показателями деятельности сердца, тестами, характеризующими состояние гемодинамики, тромбодинамики и коагуляционной активности крови. Цель исследования - изучение роли различных форменных элементов крови и их соотношения в регуляции уровня эстрогена, прогестерона и пролактина, ТБК-активных продуктов и антиоксидантной активности у больных гипертонической болезнью. Методика. Исследования проведены на 72 больных гипертонической болезнью, контрольную группу составили 12 женщин с нормальным артериальным давлением. Больные были разделены на 2 группы: в 1-ю группу вошли 37 пациенток с гипертонической болезнью II стадии, находящиеся на гипотензивной терапии, 2-ю - составили 35 женщин с гипертонией II стадии, которые кроме медикаментозного лечения, регулярно проходили курсы кинезотерапии на протяжении 2-3 лет. Результаты. Методом корреляционного анализа установлено, что у здоровых женщин и больных гипертонической болезнью, изучаемые взаимосвязи могут носить как однонаправленный, так и разнонаправленный характер. У здоровых женщин обнаруживается прямая связь между количеством лимфоцитов и уровнем прогестерона и обратная - с уровнем пролактина. Прямая связь также выявлена между индексом нейтрофилы/базофилы и прогестероном. При гипертонии у больных 1-й группы обнаруживается прямая связь между количеством эритроцитов и прогестероном, числом эозинофилов и пролактином; индекса лимфоциты/эозинофилы с эстрадиолом; индексов нейтрофилы/моноциты, нейтрофилы/базофилы и лимфоциты/базофилы с прогестероном. Отрицательная корреляция выявляется между индексами нейтрофилы/лимфоциты и нейтрофилы/эозинофилы с пролактином. У больных 2-й группы обнаружены прямые корреляционные связи между абсолютным количеством лейкоцитов, нейтрофилов и эозинофилов и отрицательная связь индекса эритроциты/лейкоциты с пролактином. При оценке корреляционных взаимосвязей показателей крови с показателями активности оксидантно/антиоксидантной системы показано, что у здоровых женщин существуют положительные связи между числом моноцитов с содержанием ТБК-продуктов и активностью антиоксидантной системы; эозинофилов с активностью антиоксидантной системы; индекса лейкоциты/тромбоциты с уровнем ТБК-продуктов. При гипертонической болезни в группе без кинезотерапии (1-я группа) выявлена отрицательная взаимосвязь между общим числом эритроцитов и показателями активности антиоксидантной системы. Заключение. Практически все форменные элементы крови и различные их взаимоотношения у здоровых и больных гипертонической болезнью играют существенную роль в регуляции уровня эстрадиола, прогестерона, пролактина и состояния системы перекисного окисления липидов - антиоксидантная активность. Close correlations exist between different blood cells (BC), blood pressure, heart function, results of hemodynamics tests, thrombodynamics, and blood coagulation in women with hypertension. Aim. The study addressed the role of different BCs and their combinations in regulation of estrogen, progesterone, prolactin, TBA-reactive substances (TBARS), and antioxidant activity (AOA) in hypertensive patients. Methods. The study included 12 healthy women (control) and 72 patients with essential hypertension (EH). Patients with EH were divided into two groups; the first group (EH-1) consisted of 37 women with stage II EH receiving an antihypertensive therapy and the second group (EH-2) consisted of 35 women who, in addition to the drug therapy, yearly underwent 3-4 courses of kinesitherapy for 2-3 year on a regular basis. Results. Both in healthy women and patients of the EH-1 and EH-2 groups, the studied relationships were either positive or negative. In healthy women, LYM positively correlated with progesterone and inversely correlated with prolactin, and the NEU/BAS ratio positively correlated with progesterone. In patients of the EH-1 group, there were positive correlations of RBC with progesterone; EOS with prolactin; and LYM/EOS with estradiol; and NEU/MON, NEU/BAS, and LYM/BAS with progesterone. The NEU/LYM and NEU/EOS ratios inversely correlated with prolactin. In patients of the EH-2 group, there were positive correlations of WBC, NEU, and EOS with prolactin and inverse correlations of the RBC/WBC ratio with prolactin. Evaluation of correlations between blood indexes and the oxidant/antioxidant system showed that in healthy women, there were positive correlations of the MON count with TBARS and AOA; EOS with AOA; and the WBC/PLT ratio with TBARS. Patients of the EH-1 group showed a negative correlation of the total RBC count with AOA. Conclusion. In both healthy subjects and EH groups, almost all BCs and their relationships play a significant role in regulation of estradiol, progesterone, prolactin, and the lipid peroxidation/AOA system.

The role of blood cells in formation of hemocoagulation shifts in essential hypertension

2018 ◽  
pp. 84-92
Author(s):  
Б.И. Кузник ◽  
С.О. Давыдов ◽  
Е.С. Гусева ◽  
Ю.Н. Смоляков ◽  
А.В. Степанов ◽  
...  
Keyword(s):  
Essential Hypertension ◽  
Prothrombin Time ◽  
Blood Cells ◽  
Formation Rate ◽  
Fibrin Clot ◽  
Stage Ii ◽  
Clot Formation ◽  
Thrombin Time ◽  
Healthy Women

Цель - изучение роли отдельных форменных элементов крови в развитии гемокоагуляционного потенциала у здоровых женщин и, больных гипертонической болезнью (ГБ). Методика. В исследовании приняли участие 102 женщины. Контрольную группу составили 30 относительно здоровых женщин. Больные ГБ были разделены на 2 подгруппы: в одну (ГБ-1) вошли 37 женщин с гипертонической болезнью II стадии, в другую (ГБ-2) - 35 женщин с ГБ II стадии, регулярно проходящих на протяжении 2-3 лет по 3-4 курса кинезитерапии. Определяли число тромбоцитов, активированное частичное тромбопластиновое время (АЧТВ), протромбиновое время (ПВ), тромбиновое время (ТВ), концентрацию фибриногена и пространственный рост фибринового сгустка, включающий время задержки роста сгустка, начальную и стационарную скорость его роста, плотность и размер сгустка. С помощью корреляционного анализа оценивалась роль отдельных форменных элементов крови в развитии гемокоагуляционного потенциала у здоровых и больных ГБ женщин. Результаты. У всех обследованных женщин обнаружено увеличение числа лимфоцитов и эозинофилов, возрастание предрасположенности к тромбообразованию, выявляемое с помощью оценки тромбодинамических свойств сгустка, возрастание скорости формирования и размеры фибринового сгустка. У женщин в группе ГБ-2 эти сдвиги выражены в меньшей степени. У здоровых женщин обнаружены прямые корреляции между числом моноцитов, АЧТВ и тромбиновым временем. и отрицательные - между числом лимфоцитов и АЧТВ. Число эозинофилов у здоровых женщин положительно коррелирует с протромбиновым временем и плотностью сгустка. В ГБ-1 отмечается негативная связь между числом нейтрофилов и скоростью образования сгустка, а также положительная связь между числом моноцитов, скоростью и размером сгустка и между числом базофилов и тромбиновым временем. У больных ГБ-2, принимавших кинезитерапию число эритроцитов отрицательно коррелирует с АЧТВ, количество тромбоцитов обнаруживает положительную корреляцию тромбиновым временем, скоростью и размерами сгустка, а общее число лейкоцитов - с протромбиновым временем и скоростью образования сгустка. Содержание нейтрофилов положительно коррелирует с протромбиновым временем и отрицательно со скоростью образования сгустка. Количество лимфоцитов и эозинофилов отрицательно коррелирует со скоростью образования сгустка, а базофилов - с уровнем фибриногена и скоростью появления сгустка. Заключение. В формировании гемокоагуляционного потенциала у здоровых женщин и больных ГБ ведущая роль принадлежит тромбоцитам и различным популяциям лейкоцитов. Обсуждается положительное влияние кинезитерапии. Aim. To study the role of different blood cells in the development of coagulation potential in healthy women and patients with essential hypertension (EH). Methods. The study included 102 women. The control group consisted of 30 relatively healthy women. Patients with EH were divided into 2 subgroups: the first subgroup (EH-1) included 37 women with stage II arterial hypertension, the second subgroup (EH-2) - 35 women with stage II EH who received 3-4 courses of kinesitherapy for 2-3 years on a regular basis. The following values were determined: platelet count, activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), fibrinogen concentration, and spatial fibrin clot growth, including the delay time of clot lengthening, initial and steady growth rate, and clot density and size. The role of different blood cells in the development of coagulation potential was evaluated in healthy and EH women using the correlation analysis. Results. All women had increased numbers of lymphocytes and eosinophils; showed a predisposition to thrombosis as was evident from thrombodynamic properties of the clot; and increased formation rate and size of the fibrin clot. These changes were less pronounced in the EH-2 group. In healthy women, a direct correlation was observed between the number of monocytes, APTT and the thrombin time. and a negative correlation - between the number of lymphocytes and APTT. In this group, the number of eosinophils positively correlated with the prothrombin time and the clot density. In the EH-1 group, the number of neutrophils inversely correlated with the rate of clot formation; the number of monocytes positively correlated with the clot formation rate and size; and the number of basophils positively correlated with the thrombin time. In EH-2 patients receiving kinesitherapy, the number of red cells inversely correlated with APTT; the number of platelets positively correlated with the thrombin time, the clot formation rate and size; and the total number of leukocytes positively correlated with the prothrombin time and the clot formation rate. The neutrophil count positively correlated with the prothrombin time and negatively - with the rate of clot formation. The number of lymphocytes and eosinophils negatively correlated with the rate of clot formation, and the number of basophils - with the fibrinogen level and the rate of clot emergence. Conclusion. Platelets and leukocyte populations play the main role in the formation of coagulation potential in healthy women and patients with EH. The beneficial effect of kinesitherapy is discussed.

scholarly journals Blood cells and their effect on the lipid profile in women with essential hypertension

2020 ◽  
Vol 25 (3) ◽  
pp. 3349
Author(s):  
B. I. Kuznik ◽  
E. S. Guseva ◽  
S. O. Davydov ◽  
Yu. N. Smolyakov ◽  
E. V. Roitman ◽  
...  
Keyword(s):  
Essential Hypertension ◽  
Lipid Metabolism ◽  
Antihypertensive Therapy ◽  
Blood Cells ◽  
Low Density Lipoproteins ◽  
Negative Association ◽  
Atherogenic Index ◽  
High Density Lipoproteins ◽  
Low Density ◽  
Healthy Women

Aim. To find out the relationship of particular blood cells (BC) and their ratios with lipid metabolism in patients with essential hypertension (EH), with (EH-1) and without kinesiotherapy (EH-2).Material and methods. The study included 30 healthy women (control group) and 72 women with EH, which were divided into 2 groups: group 1 (EH-1) — 37 women with stage II (target organ damage classification) hypertension who receive antihypertensive therapy; group 2 (EH-2) — 35 women who underwent antihypertensive therapy and kinesiotherapy (3-4 courses for 2-3 years).Results. Correlation analysis revealed that the studied relationships in healthy women, EH-1 and EH-2 women can be either direct or inverse. In healthy women, we observed negative association of monocytes (MON) with atherogenic index (AI), a positive association of basophils (BAS) with high density lipoproteins (HDL) and its negative association with low density lipoproteins (LDL), very low density lipoproteins (VLDL) and AI and red blood cells/platelets (RBC/PLT ratio) with HDL. Negative associations of lymphocytes (LYM)/BAS ratio with triglyceride (TG) and eosinophils (EOS)/BAS ratio with LDL were also detected. Patients with EH-1 had a direct relationship between LYM/EOS ratio and TG. In patients with EH-2, a negative relationship was found between PLT and HDL, MON and HDL, neutrophils (NEU)/MON ratio and TAG, and a positive — between white blood cells (WBC), NEU, MON and AI, LYM and TAG, MON and TAG, as well as AI.Conclusion. The obtained data indicate that all BC and their ratios in women with/without EH and with/without kinesiotherapy affect the lipid metabolism.

scholarly journals Normal red blood cells’ shape stabilized by membrane’s in-plane ordering

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
L. Mesarec ◽  
W. Góźdź ◽  
A. Iglič ◽  
V. Kralj-Iglič ◽  
E. G. Virga ◽  
...  
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Extrinsic Curvature ◽  
The Body ◽  
Main Function ◽  
Disorder Phase Transition ◽  
Body Tissues ◽  
Almost All ◽  
Membrane Shape

AbstractRed blood cells (RBCs) are present in almost all vertebrates and their main function is to transport oxygen to the body tissues. RBCs’ shape plays a significant role in their functionality. In almost all mammals in normal conditions, RBCs adopt a disk-like (discocyte) shape, which optimizes their flow properties in vessels and capillaries. Experimentally measured values of the reduced volume (v) of stable discocyte shapes range in a relatively broad window between v ~ 0.58 and 0.8. However, these observations are not supported by existing theoretical membrane-shape models, which predict that discocytic RBC shape is stable only in a very narrow interval of v values, ranging between v ~ 0.59 and 0.65. In this study, we demonstrate that this interval is broadened if a membrane’s in-plane ordering is taken into account. We model RBC structures by using a hybrid Helfrich-Landau mesoscopic approach. We show that an extrinsic (deviatoric) curvature free energy term stabilizes the RBC discocyte shapes. In particular, we show on symmetry grounds that the role of extrinsic curvature is anomalously increased just below the nematic in-plane order-disorder phase transition temperature.

The Role of Red Blood Cells in Hemostasis

2020 ◽  
Author(s):  
Amin A. Alamin
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Blood Clotting ◽  
Blood Rheology ◽  
Impermeable Barrier ◽  
Adhesive Proteins ◽  
Short Narrative ◽  
Shed Light ◽  
Rbc Count

AbstractNew emerging evidence is now prompting researchers to devote greater focus on the roles played by red blood cells (RBCs) in hemostasis. This short narrative review aims to outline the available research, past and current, that has revealed the role of RBCs in hemostasis, particularly blood clotting. Although early researchers suggested that RBCs were involved in blood clotting, they had insufficient evidence to support such claims. As a result, this area of research received little attention from other scientists. Early researchers primarily used quantitative measures of RBCs, namely hematocrit or RBC count, as higher numbers of RBCs modulate blood rheology by increasing viscosity. Recent research has instead shed light on the different measures of RBC function, such as expression of phosphatidylserine and adhesive proteins, aggregation, hemolysis, release of extracellular microvesicles, and erythrocyte volume. RBCs play a role in the contraction of clots by platelets, and the resulting densely packed array of polyhedral erythrocytes forms an almost impermeable barrier that is essential for hemostasis and wound healing. Renewed interest in RBCs is primarily due to the clinically and experimentally established relationships between erythrocytes and hemostasis, which have suggested that erythrocytes are potential targets for the treatment of hemostatic disturbances.

scholarly journals Biochemical Evaluation of the Effects of Hydroxyurea in Vitro on Red Blood Cells

Antioxidants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1599
Author(s):  
Cristiane Oliveira Renó ◽  
Grazielle Aparecida Silva Maia ◽  
Leilismara Sousa Nogueira ◽  
Melina de Barros Pinheiro ◽  
Danyelle Romana Alves Rios ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Red Blood Cells ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Blood Cells ◽  
Low Cost ◽  
Healthy Individuals ◽  
In Vitro Effects ◽  
Almost All

Hydroxyurea (HU) is a low-cost, low-toxicity drug that is often used in diseases, such as sickle cell anemia and different types of cancer. Its effects on the red blood cells (RBC) are still not fully understood. The in vitro effects of HU were evaluated on the biochemical parameters of the RBC from healthy individuals that were treated with 0.6 mM or 0.8 mM HU for 30 min and 1 h. After 30 min, there was a significant increase in almost all of the parameters analyzed in the two concentrations of HU, except for the pyruvate kinase (PK) activity. A treatment with 0.8 mM HU for 1 h resulted in a reduction of the levels of lipid peroxidation, Fe3+, and in the activities of some of the enzymes, such as glutathione reductase (GR), glucose-6-phosphate dehydrogenase (G6PD), and PK. After the incubation for 1 h, the levels of H2O2, lipid peroxidation, reduced glutathione (GSH), enzymatic activity (hexokinase, G6PD, and superoxide dismutase (SOD) were reduced with the treatment of 0.8 mM HU when compared with 0.6 mM. The results have suggested that a treatment with HU at a concentration of 0.8 mM seemed to be more efficient in protecting against the free radicals, as well as in treating diseases, such as sickle cell anemia. HU appears to preferentially stimulate the pentose pathway over the glycolytic pathway. Although this study was carried out with the RBC from healthy individuals, the changes described in this study may help to elucidate the mechanisms of action of HU when administered for therapeutic purposes.

Michael Kelly, Hilary Footitt, Myriam Salama-Carr (eds.): The Palgrave Handbook of Languages and Conflict

2020 ◽  
Vol 55 (2) ◽  
Author(s):  
Ľubomír Zvada
Keyword(s):  
International Relations ◽  
Foreign Languages ◽  
Military Operations ◽  
Sources Of Information ◽  
War And Peace ◽  
Interdisciplinary Field ◽  
Speakers Of Other Languages ◽  
War And Conflict ◽  
Almost All

This Handbook maps the contours of an exciting and burgeoning interdisciplinary field concerned with the role of language and languages in situations of conflict. It explores conceptual approaches, sources of information that are available, and the institutions and actors that mediate language encounters. It examines case studies of the role that languages have played in specific conflicts, from colonial times through to the Middle East and Africa today. The contributors provide vibrant evidence to challenge the monolingual assumptions that have affected traditional views of war and conflict. They show that languages are woven into every aspect of the making of war and peace, and demonstrate how language shapes public policy and military strategy, setting frameworks and expectations. The Handbook's 22 chapters powerfully illustrate how the encounter between languages is integral to almost all conflicts, to every phase of military operations and to the lived experiences of those on the ground, who meet, work and fight with speakers of other languages. This comprehensive work will appeal to scholars from across the disciplines of linguistics, translation studies, history, and international relations; and provide fresh insights for a broad range of practitioners interested in understanding the role and implications of foreign languages in war.

Role of dyslipidaemia and lipid peroxidation in pregnancy induced hypertension

2015 ◽  
Vol 4 (3) ◽  
pp. 205 ◽  
Author(s):  
Shikha Saxena ◽  
KV Thimmaraju ◽  
PremC Srivastava ◽  
AyazK Mallick ◽  
Biswajit Das ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Pregnancy Induced Hypertension ◽  
Induced Hypertension ◽  
In Pregnancy

ON EVALUATION OF THE ROLE OF THERMAL AND WIND FACTORS FOR A PHYSICAL MODEL OF THE WORLD OCEAN GENERAL CIRCULATION SYSTEM

2019 ◽  
Vol 47 (3) ◽  
pp. 80-91
Author(s):  
V. G. Neiman
Keyword(s):  
Physical Model ◽  
Ocean Circulation ◽  
General Circulation ◽  
World Ocean ◽  
Circulation System ◽  
The Public ◽  
The World ◽  
Almost All ◽  
Conceptual Foundations

The main content of the work consists of certain systematization and addition of longexisting, but eventually deformed and partly lost qualitative ideas about the role of thermal and wind factors that determine the physical mechanism of the World Ocean’s General Circulation System (OGCS). It is noted that the conceptual foundations of the theory of the OGCS in one form or another are contained in the works of many well-known hydrophysicists of the last century, but the aggregate, logically coherent description of the key factors determining the physical model of the OGCS in the public literature is not so easy to find. An attempt is made to clarify and concretize some general ideas about the two key blocks that form the basis of an adequate physical model of the system of oceanic water masses motion in a climatic scale. Attention is drawn to the fact that when analyzing the OGCS it is necessary to take into account not only immediate but also indirect effects of thermal and wind factors on the ocean surface. In conclusion, it is noted that, in the end, by the uneven flow of heat to the surface of the ocean can be explained the nature of both external and almost all internal factors, in one way or another contributing to the excitation of the general, or climatic, ocean circulation.

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