Morphological and functional state of the heart during magnetic storm

Magnetic storm modulates morphological and functional state of the heart and the related systems. Changes in cardiomyocyte ultrastructure induced by changes in geomagnetic activity were studied in experiments on rabbits. We describe a possible mechanism underlying changes in cardiac activity in intact animals induced by geomagnetic perturbations. The most pronounced alterations of cardiomyocyte ultrastructure were observed during the major phase of magnetic storm

ГЕЛИОКЛИМАТИЧЕСКИЕ ФАКТОРЫ И ХРОНОПАТОЛОГИЯ СЕВЕРНОГО РЕГИОНА

In the high latitudes of Russia, human life is complicated by a mismatch between the rhythmic processes inside the organism, and environmental factors that determine the rhythm in the form of photo-, baro-, thermo-, and heliodesinchronicoses. It is also necessary to take into account the induced desynchronosis of complex genesis, which can be provoked by both chronic and acute somatic pathology.A complex polyrhythmic structure of the rhythms of the onset and exacerbation of diseases, reflected in the form of calls to the «Ambulance» service, revealed by the wavelet analysis method is formed depending on the «quasi-season» and annual climate variations. The presence of twoand three-, fiveand six-year rhythms is associated with changes in the long-period component of the impact on the human body of a complex of weather and heliogeophysical factors whose fluctuations in the circumpolar regions are much more pronounced than in the middle and southern latitudes.В условиях высоких широт России жизнедеятельность человека осложняется как рассогласованием между ритмическими процессами внутри организма, так и задающими ритм факторами окружающей среды в виде фото-, баро-, термои гелиодесинхронозов. Необходимо также учитывать индуцированный десинхроноз комплексного генеза, который может быть спровоцирован как хронической, так и острой соматической патологией. Сложная полиритмичная структура ритмов возникновения и обострения заболеваний, отражающаяся в виде обращений в службу скорой помощи, выявленная методом вейвлет-анализа, формируется в зависимости от «квазисезонных» и годовых колебаний климата. Наличие двухи трех-, пятии шестилетних ритмов связано с изменениями длиннопериодного компонента воздействия на организм человека комплекса погодных и гелиогеофизических факторов, колебания которых в циркумполярных регионах гораздо более выражены, чем в средних и южных широтах

BIOLOGICAL EFFECTS OF GEOMAGNETIC STORMS

Six physiological parameters of cardio-vascular system of rabbits and ultrastructure of cardiomyocytes were investigated during two planetaty geomagnetic storms. At the initial and main phase of the storm the normal circadian structure in each cardiovascular parameter was lost. The disynchronozis was growing together with the storm and abrupt drop of cardia activity was observed during the main phase of storm. The main phase of storm followed by the destruction and degradation of cardiomyocytes. parameters of cardia activity became substuntially synchronized and characterised by circadian rhythm structure while the amplitude of deviations was stilt significant at the recovery stage of geomagnetic storm

ФАКТОРЫ ВНЕШНЕЙ СРЕДЫ КАК ВОЗМОЖНАЯ ПРИЧИНА ДЕСИНХРОНОЗА

Temporary structure and dynamics of biological rhythms evolved in the course of evolution under the influence of environmental factors. The circadian rhythm had been considered as a leading rhythm of biological objects, which was formed under the influence of light and temperature variations, having a daily frequency due to the Earth's own rotation. The new factors of external environment, which involved potentially in the process of influence on biological systems were opened after the beginning of space research. They cover almost the entire range of periods of biological rhythms, and can be temporary detectors in their composition and dynamics. With the discovery of the solar wind and the interplanetary magnetic field and the Earth's magnetosphere, it became obvious that the biological rhythms and magnetic factor have a similar rhythms, which gives reason to speak about the participation of the magnetic factor in their formation. Malfunctions of rhythms of this factor may cause desynchronization of biological rhythms as a type of adaptive stress reaction similar one arising in desynchronization of circadian rhythms when you change time zones. These two hypothesis made in the 90-ies of the last century by the authors of this paper, have received a convincing argument in our studies as well as in researches of specialists from different countries, the results of which will be discussed in this paper.Временная структура и динамика биологических ритмов формировались в процессе эволюции под воздействием факторов внешней среды. Ведущим ритмом биологических объектов считался циркадианный ритм, сформировавшийся под воздействием ритма освещенности и температуры, имеющий суточную периодичность из-за собственного вращения Земли. С началом космических исследований были открыты новые факторы воздействия внешней среды, которые потенциально участвовали в этом процессе. Они охватывают практически весь спектр периодов биологических ритмов, и могут быть временными датчиками при их формировании и динамики. С открытием солнечного ветра и межпланетного магнитного поля, а также магнитосферы Земли стало очевидно, что биологические ритмы и магнитный фактор имеют сходную ритмику, что дает основание говорить об участии магнитного фактора в их формировании. Сбои ритмов этого фактора могут вызывать десинхронизацию биологических ритмов по типу адаптационного стресса, возникающего при десинхронизации циркадианных ритмов при смене часовых поясов. Эти два предположения, высказанные в 90-х гг. прошлого столетия авторами данной работы, получили убедительную аргументацию в наших исследованиях и в исследованиях специалистов различных стран, результаты которых будут обсуждаться в настоящей работе

BIOLOGICAL EFFECTS OF GEOMAGNETIC STORMS

Six physiological parameters of cardio-vascular system of rabbits and ultrastructure of cardiomyocytes were investigated during two planetaty geomagnetic storms. At the initial and main phase of the storm the normal circadian structure in each cardiovascular parameter was lost. The disynchronozis was growing together with the storm and abrupt drop of cardia activity was observed during the main phase of storm. The main phase of storm followed by the destruction and degradation of cardiomyocytes. parameters of cardia activity became substuntially synchronized and characterised by circadian rhythm structure while the amplitude of deviations was stilt significant at the recovery stage of geomagnetic storm

The biological effects of solar activity

The synchronization of biological circadian and circannual rhythms is broadly viewed as a result of photic solar effects. Evidence for non-photic solar effects on biota is also slowly being recognized. The ultrastructure of cardiomyocytes from rabbits, the time structure of blood pressure and heart rate of neonates, and the heart rate variability of human adults on earth and in space were examined during magnetically disturbed and quiet days, as were morbidity statistics. Alterations in both the about-daily (circadian) and about-weekly (circaseptan) components are observed during disturbed vs. quite days. The about-weekly period of neonatal blood pressure correlates with that of the local geomagnetic disturbance index K. Circaseptans which are seen early in human life and in various other forms of life, including unicells, may provide information about the possible site(s) of life's origins from an integrative as well as adaptive evolutionary perspective. © 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserved