scholarly journals ОСОБЛИВОСТІ МІКРОЦИРКУЛЯЦІЇ КРОВІ У СТУДЕНТІВ

2015 ◽  
Vol 5 (03) ◽  
pp. 122-129
Author(s):  
D. D. Horban ◽  
O. V. Yusupova ◽  
M. I. Sobichanska ◽  
V. G. Chorna
Keyword(s):  
Blood Flow ◽  
Functional State ◽  
Experimental Research ◽  
Nervous Activity ◽  
High Amplitude ◽  
Tissue Blood Flow ◽  
Doppler Flowmetry ◽  
Blood Microcirculation ◽  
Higher Nervous Activity ◽  
Different Types

<p>The experimental research included the study of the functional state of blood microcirculation by means of laser Doppler flowmetry (LDF). Allowing to assess the condition of tissue blood flow and to detect the features of the microcirculation under different types of higher nervous activity. The obtained results showed that at most of students high-amplitude LDF was registered. Determining the characteristics of students` blood microcirculation with different types of higher nervous activity among healthy students 17-22 years showed that the prevailing strong and active types of temperament (choleric and sanguine) students hiperemichnym type of temperament. Percentage strong, but few mobile (phlegmatic) students was minimal and there was a greater number of students with hiperemichnym type of microcirculation, and the percentage weak sedentary (melancholic) type had a mean and often observed in students from normoemichnym type of blood microcirculation.</p> <p><em>Keywords: the blood microcirculation, LDF-metry,</em><em> </em><em>the</em><em> higher nervous activity, temperament.</em></p>

scholarly journals Evaluation of the marginal gingival health using laser doppler flowmetry

2006 ◽  
Vol 17 (3) ◽  
pp. 219-222 ◽  
Author(s):  
Hakan Develioglu ◽  
Bülent Kesim ◽  
Aykut Tuncel
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Plaque Index ◽  
Tissue Blood Flow ◽  
Doppler Flowmetry ◽  
Gingival Health ◽  
Significant Difference ◽  
Clinical Indices ◽  
And Control

The purposes of this study were to compare the gingival blood flow (GBF) in test sites (teeth retaining fixed partial dentures) and control sites (contralateral natural teeth) and investigate whether there is any relationship between clinical indices and GBF values. Twelve healthy subjects (6 females and 6 males) aged 20 to 54 years were enrolled this study. The GBF was measured from the middle point of the marginal gingiva in the test and control sites using laser Doppler flowmetry (LDF). Additionally, plaque index, gingival index and probing depth measurements were recorded. Statistically significant difference (p<0.05) was found between the test and control sites for marginal GBF. In contrast, no significant difference (p>0.05) was found between test and control sites with respect to the clinical indices, except for plaque index. The findings of this study suggest that there is a significant relation between resin-bonded fixed partial dentures with margins located subgingivally and marginal GBF. Clinical indices are helpful to collect information about the clinical health status of gingival tissues, but GBF is a good tool to measure gingival tissue blood flow and assess periodontal health. In conclusion, laser Doppler flowmetry can be used together with clinical indices to evaluate the marginal gingival health.

scholarly journals Зміни в вітамінній ланці антиоксидантної системи корів різних типів вищої нервової діяльності

2017 ◽  
Vol 19 (78) ◽  
pp. 81-85
Author(s):  
Yu.O. Sysyuk ◽  
V.I. Karpovskiy ◽  
O.V. Zhurenko ◽  
O.V. Danchuk ◽  
R.V. Postoy
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Blood Serum ◽  
Significant Influence ◽  
Weak Type ◽  
Nervous Activity ◽  
Winter Season ◽  
Tocopherol Content ◽  
Higher Nervous Activity ◽  
Different Types

The article presents the results of the studying the content of some vitamins in blood serum of cows with different types of higher nervous activity depending on the season. The purpose of the study was to determine the influence of the typological features of the nervous system on the content of separate vitamins in blood serum of cows depending on the season. The experiment was carried out on the basis of the farm «Kolos» village Borodianka, Kyiv region on clinically healthy cows of Ukrainian black-and-white dairy breed of 2–3rd lactation. On the basis of the investigation the conditioned reflex activity, 4 experimental groups of animals were formed with 4 most typical representatives of the identified types of higher nervous activity in each: 1st group – strong balanced mobile type, 2nd group – strong balanced inert type, 3rd group – strong unbalanced type, 4th group – weak type. The research material was blood serum, in which the content of vitamins A, E and C was determined by express method via liquid chromatography. The conducted investigation of ascorbic acid, retinol and tocopherol content in blood serum of cows with different types of higher nervous activity in winter and summer periods shown that its content is significantly dependent on the season. In particular, the content of ascorbic acid in blood serum of cows with different types of higher nervous activity in the winter season was lower by 22–27% in compare with its meaning in the summer season. It should be noted that the largest difference in content of vitamin C in blood serum depending on the season was found in animals of strong balanced inert and weak types of higher nervous activity (by 27.4%, P < 0.001 and 24.0%, P < 0.001 respectively). While in animals of strong balanced mobile and strong unbalanced types of higher nervous activity the content of vitamin C in blood serum was lower by 23.2% (P < 0.001) and 21.7% (P < 0.001), respectively. The content of fat-soluble vitamins in blood serum of cows with different types of higher nervous activity is also largely dependent on the season. Thus, the content of tocopherol was lower in the winter season by 35.8–41.6% (P < 0.001) depending on the type of higher nervous activity. And the retinol content was lower by 49.2–55.3% (P FU=3.0; P FU = 3.0; P < 0.05. However, the main properties of cortical processes did not have a significant influence on the content of retinol in blood serum – F = 2.8 < FU = 3.0; P = 0.06. The season has a significant influence on the content of the above mentioned vitamins – F = 126–348 > FU = 4.3; P < 0.001, which is obviously due to the level of supply the animal’s body with vitamins during different seasons. It should be noted that there is no relationship between the sources of variation (type of higher nervous activity and season), which obviously testifies to the absence of influence of the seasons on the main features of cortical processes (F = 0.37–1.64 < FU = 3.0; P = 0.208–0.775). Thus, the influence of the main features of cortical processes on the content of ascorbic acid, retinol and tocopherol in blood serum of cows is found. In animals of weak type of higher nervous activity the vitamin content in blood serum is lower than in animals of strong types. The lower content of ascorbic acid, retinol and tocopherol in blood serum of cows in the winter season, regardless the type of higher nervous activity, has been established.

The use of laser Doppler flowmetry to evaluate oral soft tissue blood flow in humans: A review

2018 ◽  
Vol 86 ◽  
pp. 58-71 ◽  
Author(s):  
Ayepa Alain Kouadio ◽  
Fabienne Jordana ◽  
N’goran Justin Koffi ◽  
Pierre Le Bars ◽  
Assem Soueidan
Keyword(s):  
Blood Flow ◽  
Soft Tissue ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Tissue Blood Flow ◽  
Doppler Flowmetry ◽  
Oral Soft Tissue

scholarly journals Decreased prefrontal oxygenation elicited by stimulation of limb mechanosensitive afferents during cycling exercise

2018 ◽  
Vol 315 (2) ◽  
pp. R230-R240 ◽  
Author(s):  
Ryota Asahara ◽  
Kanji Matsukawa
Keyword(s):  
Blood Flow ◽  
Prefrontal Cortex ◽  
Minute Ventilation ◽  
Peripheral Resistance ◽  
Oxygenation Index ◽  
Tissue Blood Flow ◽  
Doppler Flowmetry ◽  
Blood Flows ◽  
Arterial Blood ◽  
Cutaneous Tissue

Our laboratory reported using near-infrared spectroscopy that feedback from limb mechanoafferents may decrease prefrontal oxygenated-hemoglobin concentration (Oxy-Hb) during the late period of voluntary and passive cycling. To test the hypothesis that the decreased Oxy-Hb of the prefrontal cortex would be augmented depending on the extent of limb mechanoafferent input, the prefrontal Oxy-Hb response was measured during motor-driven one- and two-legged passive cycling for 1 min at various revolutions of pedal movement in 19 subjects. Furthermore, we examined whether calculated tissue oxygenation index (TOI) decreased during passive cycling as the Oxy-Hb did, simultaneously assessing blood flows of extracranial cutaneous tissue and the common and internal carotid arteries (CCA and ICA) with laser and ultrasound Doppler flowmetry. Minute ventilation and cardiac output increased and peripheral resistance decreased during passive cycling, depending on both revolutions of pedal movement and number of limbs, whereas mean arterial blood pressure did not change. Passive cycling did not change end-tidal CO2, suggesting absence of a hypocapnic change. Prefrontal Oxy-Hb decreased during passive cycling, being in proportion to revolution of pedal movement but not number of cycling limbs. In addition, prefrontal TOI decreased during passive cycling as Oxy-Hb did, whereas blood flows of forehead cutaneous tissue, CCA, and ICA did not change significantly. Thus, a decrease in Oxy-Hb reflected a decrease in tissue blood flow of the intracerebral vasculature but not the extracerebral compartment. It is likely that feedback from mechanoafferents decreased regional cerebral blood flow of the prefrontal cortex in relation to the revolutions of pedal movement.

scholarly journals ANTIOXIDANT-PROOXIDANT STATUS IN ORGANISM OF PIGS WITH DIFFERENT TYPES OF HIGHER NERVOUS ACTIVITY UNDER STRESS

2018 ◽  
Vol 64 (4) ◽  
pp. 26-32 ◽  
Author(s):  
O.V. Danchuk ◽  
◽  
V.I. Karpovskyі ◽  
V.О. Trokoz ◽  
◽  
...  
Keyword(s):  
Nervous Activity ◽  
Higher Nervous Activity ◽  
Different Types

scholarly journals Features of blood`s microcirculation at physical loads

2020 ◽  
pp. 4-7
Author(s):  
Tetana Stanishevska ◽  
Оksana Gorna ◽  
Daria Horban ◽  
Olga Yusupova
Keyword(s):  
Physical Activity ◽  
Blood Flow ◽  
Physical Exertion ◽  
Doppler Flowmetry ◽  
Blood Microcirculation ◽  
Functional Reserves ◽  
State Pedagogical ◽  
Before And After ◽  
Human Cardiovascular System ◽  
Microcirculation Parameter

This research deals with the study of blood microcirculation peculiarities.Materials and methods. 72 students of Bogdan Khmelnytsky Melitopol State Pedagogical University, aged 18–19, were examined. The experimental research consisted of the study of blood microcirculation functional state by means of Laser Doppler flowmetry (LDF) method. It helped to evaluate the state of tissue blood-circulation and to detect individual-typological peculiarities of blood microcirculation under the influence of physical activity (before and after exercise).Results. Three types of blood microcirculation were identified by using LDF-metry. The normoemic type of blood microcirculation, characterized by the superposition of oscillatory rhythms and reflected the balance of the mechanisms of regulation of microcirculation. The hyperemic type, characterized by a «monotonous» LDF-gram with a high parameter of microcirculation, which reflects the relative predominance of metabolic mechanisms in the regulation of microcirculation. The hypoemic type, characterized by a «monotonous» LDF-gram with a low parameter of the microcirculation parameter, which reflects the decrease of vasomotor mechanisms in the regulation of microcirculation. According to the LDF-metric data, the examined students under intensive physical activity have a significant increase in microcirculatory status: by 6 % of the microcirculation parameter, by 28 % of the mean square deviation and by 45 % of the initial value of the coefficient of variation.Conclusions. This dynamics of microcirculation shows that under the influence of physical exertion, a person creates significant functional reserves for the redistribution of blood flow and for more perfect intraorgan capillary blood flow. It was found, that in the process of physical activity, morpho-functional rearrangements of the human cardiovascular system occur. This reaction is formed by several components of blood microcirculation: blood flow in the transport direction, regulating blood supply in accordance with the needs of tissues and the exchange component of the histochemical barrier

scholarly journals Mineral status of the organism of copps of different types of high nervous activity

2018 ◽  
Vol 20 (92) ◽  
pp. 109-112
Author(s):  
Yu. V. Kravchenko-Dovga ◽  
V. I. Karpovskyi ◽  
O. V. Danchuk ◽  
O. V. Zhurenko
Keyword(s):  
Weak Type ◽  
Nervous Activity ◽  
Scientific Data ◽  
The Body ◽  
Force Balance ◽  
Mineral Status ◽  
Black And White ◽  
Modified Method ◽  
Higher Nervous Activity ◽  
Different Types

New scientific data on the degree and nature of the effect of force, balance and mobility of cortical processes on the mineral status in the body of cows are given. The experiment was conducted on cows of Ukrainian black-and-white milk breed of second-third lactation of different types of higher nervous activity. Investigations of conditioned-reflex activity were conducted using the modified method of conditional-food reflexes G.V. Parshutina and T.V. Hippolyte. The material for research was blood samples of animals, in which the content of individual macro- and trace elements was determined. It is established that in an animal of a strong, balanced, mobile type of higher nervous activity an optimum content of macroelements in the blood is established. Thus, the content of sodium was 119.3 ± 1.1 mmol/dm3, Kcal – 5.62 ± 0.39 mmol/dm3, phosphorus – 8.38 ± 0.11 mmol/dm3, calcium – 2.22 ± 0.09 mmol/dm3 and magnesium – 0.84 ± 0.02 mmol/dm3. In cows of a strong, balanced inert type of higher nervous activity, the content of phosphorus in the blood is lower by 9.3% (P < 0.01), in animals of a strong unbalanced type, the content of phosphorus and magnesium is less by 7.4–9.6% (P < 0.01) and in cows of weak type the content of Potassium, Phosphorus and Magnesium is lower by 13.3–29.2% (P < 0.001) from the indicator of animals of a strong, balanced, mobile type of higher nervous activity. The microelement status of the cows of a strong, balanced, mobile type of higher nervous activity is characterized by the following their content in the blood: Ferrum – 17.8 ± 0.6 μmol/dm3 Zinc – 20.67 ± 0.95 μmol/dm3 Manganese – 0.84 ± 0.02 μmol/dm3 and Kuprum – 13.28 ± 0.29 μmol/dm3. In blood of strong, balanced, inert and strong unbalanced type, the content of zinc in the blood is lower by 17.1–18.5% (P < 0.001), in animals of weak type the content of Ferum, Zinc, Mangan and Kuprum is less than 8.0–24.6% (P < 0.05–0.001) in accordance with the indices of strong, balanced, mobile type of higher nervous activity.

Sign in / Sign up

Export Citation Format

Share Document