Analysis of interactions between cardiovascular oscillations for discrimination of early vascular disorders in arterial hypertension and type 2 diabetes

Tikhonova, Irina V.; Tankanag, Arina V.; Guseva, Irina E.; Grinevich, Andrey A.

doi:10.1016/j.bspc.2022.104222

Cited by 9 publications

(3 citation statements)

References 53 publications

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“…It is very informative to assess the degree of correlation between microcirculation fluctuations in different rhythms. This approach can be used for noninvasive techniques for diagnosing and monitoring the development of diabetes mellitus, bronchial asthma, and other pathologies [90,91,[93][94][95][96][97]. The use of a correlation approach to the study of microcirculation oscillations in different rhythms during a magnetic storm may open new aspects of the physiological effects of weak ELF-MFs in the future.…”

Section: Figurementioning

confidence: 99%

Biological Effects of Magnetic Storms and ELF Magnetic Fields

Sarimov,

Serov,

Gudkov

2023

Biology

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Magnetic fields are a constant and essential part of our environment. The main components of ambient magnetic fields are the constant part of the geomagnetic field, its fluctuations caused by magnetic storms, and man-made magnetic fields. These fields refer to extremely-low-frequency (<1 kHz) magnetic fields (ELF-MFs). Since the 1980s, a huge amount of data has been accumulated on the biological effects of magnetic fields, in particular ELF-MFs. However, a unified picture of the patterns of action of magnetic fields has not been formed. Even though a unified mechanism has not yet been generally accepted, several theories have been proposed. In this review, we attempted to take a new approach to analyzing the quantitative data on the effects of ELF-MFs to identify new potential areas for research. This review provides general descriptions of the main effects of magnetic storms and anthropogenic fields on living organisms (molecular–cellular level and whole organism) and a brief description of the main mechanisms of magnetic field effects on living organisms. This review may be of interest to specialists in the fields of biology, physics, medicine, and other interdisciplinary areas.

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Section: Figurementioning

confidence: 99%

Biological Effects of Magnetic Storms and ELF Magnetic Fields

Sarimov,

Serov,

Gudkov

2023

Biology

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“…An additional method for assessing the physiological status and reserve capabilities of systems of the local regulation of the work of the microvascular bed can be the assessment of the phase coherence of oscillatory signals generated by different body systems (respiration, heartbeat, microcirculation velocity) or generated by one system but recorded in different areas [216]. In particular, for patients with DM2, a decrease in the phase wavelet coherence of oscillations in the speed of skin microcirculation and HRV was found, both in control and in response to a functional test (change in body position) [5].…”

Section: Rhythms Of Skin Blood Perfusion Oscillationsmentioning

confidence: 99%

“…The practical value lies in the search for a connection between the development of pathologies and violations of rhythmic processes. Examples are the association of the development of epilepsy and other disorders of the brain with changes in the patterns of EEG rhythms and the possibility of using the characteristics of oscillations in the speed of skin microcirculation and heart rate variability in the diagnosis of systemic disorders in humans [3][4][5]. Methods for correcting stress-induced disorders in humans are also being developed by changing the body's own rhythms using feedback schemes [6].…”

Section: Introductionmentioning

confidence: 99%

Application of Spectral Methods of Analysis for Description of Ultradian Biorhythms at the Levels of Physiological Systems, Cells and Molecules (Review)

2023

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The presence of biological rhythms is a characteristic of all living organisms. Over the past 60 years, scientists around the world have accumulated a huge amount of data on rhythmic processes in living systems at various levels. The acquired knowledge has found applications in human economic activity and medicine. The ultradian (less than a day) rhythms at the organismal, organ, and cellular levels are characterized by high diversity. Unfortunately, biorhythms in different systems are considered, most often, in isolation from each other. Much knowledge about biorhythms was obtained using expert evaluation methods, and later methods of spectral analysis were used to describe biorhythms. Ultradian rhythms have a relatively short duration; therefore, they can be characterized by spectral analysis methods. More and more researchers believe that in order to further expand the understanding of the nature and purpose of biorhythms, the use of more advanced methods of mathematical processing is required, and rhythms in different organs, tissues, and cells should be considered parts of a single system. This review is intended to provide the reader with the variety of ultradian rhythms in living systems (organismal, organ, cellular, molecular levels), the mechanisms of their generation, and their functions to give the reader a picture of the possible relationships between these rhythms. Further, the reader will be able to get acquainted with the variety of mathematical methods for analyzing biorhythms, including bispectral and cross-correlation analyses.

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Microcirculatory Dysfunction in Patients With Diabetes Mellitus Detected by a Distributed System of Wearable Laser Doppler Flowmetry Analysers

Zharkikh,

Loktionova,

Dunaev

2024

Journal of Biophotonics

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The paper is devoted to the study of perfusion and amplitude‐frequency spectra of laser Doppler flowmetry (LDF) signals in patients with diabetes mellitus (DM) in different skin areas of the upper and lower extremities using a distributed system of wearable LDF analysers. LDF measurements were performed in the areas of the fingers, toes, wrists and shins. The mean perfusion values, the amplitudes of blood flow oscillations in endothelial, neurogenic, myogenic, respiratory and cardiac frequency ranges, and the values of nutritive blood flow were analysed. The results revealed a decrease in tissue perfusion and nutritive blood flow in the lower extremities and an increase in these parameters in the upper extremities in patients with DM. A decrease in the amplitudes of endothelial and neurogenic oscillations was observed. The obtained results confirm the possibility of using wearable LDF analysers to detect differences in the blood flow regulation in normal and pathological conditions.

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Analysis of interactions between cardiovascular oscillations for discrimination of early vascular disorders in arterial hypertension and type 2 diabetes

Cited by 9 publications

References 53 publications

Biological Effects of Magnetic Storms and ELF Magnetic Fields

Biological Effects of Magnetic Storms and ELF Magnetic Fields

Application of Spectral Methods of Analysis for Description of Ultradian Biorhythms at the Levels of Physiological Systems, Cells and Molecules (Review)

Microcirculatory Dysfunction in Patients With Diabetes Mellitus Detected by a Distributed System of Wearable Laser Doppler Flowmetry Analysers

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