Pages Navigation Menu
Submit scientific paper, scientific publications, International Research Journal | Meždunarodnyj naučno-issledovatel’skij žurnal

БИОЛОГИЧЕСКИЕ НАУКИ

ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ЭЛ № ФС 77 - 80772, 16+

THE USE OF OXIDATIVE STRESS COEFFICIENTS FOR THE INTEGRAL ASSESSMENT OF THE OXIDATIVE HOMEOSTASIS OF AN ORGANISM IN SECRETORY CARDIOMYOCYTE EXPOSURE

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

An imbalance of homeostasis in an organism causes oxidative stress to occur. The intensity of oxidative stress can be tracked via oxidative stress coefficients. The aim of the study is an integral assessment of the oxidative homeostasis in rats based on the oxidative stress coefficients when affecting secretory cardiomyocytes. Materials and methods: the study utilized 420 male rats in total. The rats were divided into two groups – an intact group and an experimental group with 210 animals in each group. To initiate oxidative stress, the rats of the experimental group underwent cryodestruction of the right atrium. For the integral assessment of oxidative homeostasis, the coefficients of oxidative stress were used. Conclusion: the oxidative stress that occurred during cryodestruction of the right atrium before 7 days of the experiment provokes a decrease in the activity of antioxidant enzymes and an increase in the concentration of oxidation products in skeletal muscle tissue and heart tissues of rats, while the launch of reparative processes contributes to the restoration of the disturbed redox balance in the body, which is reflected in the dynamics of oxidative stress coefficients.

Read More

PARAMETRIC METHOD FOR VISUALIZING THE STRUCTURE OF TREE SPECIES CONSORTIA AND ITS POTENTIAL IN BIOINDICATION

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The current study describes the structure of consortia (structural unit of biocenosis, combining autotrophic and heterotrophic organisms on the basis of spatial (topical) and food (trophic) connections) of tree species Betula pendula Roth and Tilia cordata Mill. of different biological ages in the Republic of Mari El. More than 120 species of Insecta and Arachnida are associated with the coenopopulations of both Betula pendula and Tilia cordata. A new parametric method for visualizing the consortia structure allows for the identification of the order of filling individual ecological niches of the consortia depending on the ontogenetic state of the determinant of the consortia (Viridiplantae population) and the degree of anthropogenic load. The study proposes to use the parametric visualization method for bioindication purposes. For a detailed description of the consortia, it is necessary to organize long-term monitoring of the state of tree stands and the composition of their consorts (other organisms aside from Viridiplantae population).

Read More

DEGRADATION FACTORS IN THE ASSESSMENT OF SOIL CONDITION

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The article deals with the concept of soil degradation and the classification of soil degradation. The study provides definitions for such concepts as the kind, type, rate, degree, and reversibility of soil degradation. Based on the expert economic approach of degradation processes, the study also provides the classification of reversibility of soil degradation processes and demonstrates the dependence of the severity of reclamation measures based on the types of soil. The article concludes that when assessing the state of soil, it is necessary to take into account the factors of degradation that cause certain types of degradation, their combination, severity, speed, reversibility, and their resistance to further degradation.

Read More

ON THE INITIAL STAGES OF THE FORMATION OF POSTAGROGENIC FORESTS FROM THE STANDPOINT OF THE POPULATION AND ONTOGENETIC APPROACH

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

In recent decades, most of the agricultural land has not been used for its intended purpose and is overgrown with forest. Methods for assessing such sites based on the structure of individuals, their composition, and future condition have yet to be sufficiently developed. The purpose of the current study is to compare approaches to the characterization of different-age individuals of Scots pine (Pinus sylvestris L.) in former agricultural fields. For this purpose, the authors of the research study the diversity and morphological and biological aspects of pine trees from the standpoint of forest science, biomorphological and population-ontogenetic approaches. The study establishes the ambiguity of using the available terminology for describing the structure of plants, assessing the overgrowth of the field, and predicting forest care measures. On the basis of a set of approaches, the authors propose the concept of a “functional group”, a set of young plants with a certain role in the formation of the future forest as well as the variants of this set. Based on these concepts, the study characterizes the pines in the model areas of overgrown fields; describes the process and model of overgrowth, establishes the beginning period of care for the community, proposes the characteristics of functional groups in the express analysis of the overgrown field for the purposes of developing of the necessary forestry measures in the formation of the future productive forest.

Read More

AN ANTHROPOMETRIC AND PHYSIOLOGICAL STATUS OF MODERN STUDENTS

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The studied objective anthropometric and physiological indicators traditionally serve as markers of success of students’ adaptation in today’s exo-environment. The general trend of the indicators is in the range of the regional optimum, some variables reliably go into the zones of functional stresses. The modern, local nature of the observation is justified by the fixation of physiological indicators during the 2020-21 academic year in the second-year students of a Nizhny Novgorod higher education institution. The statistical results of a prompt cross-section are presented in comparison with the centile intervals of the regional population standard. The intra-group dynamics of the indicators are determined by the morphological type of the individuals, age and gender characteristics, and the modern exogenous environment. The monitoring of the physiological status of high school students is advisable within the framework of scientific research, implementation of social programs, and current medical and pedagogical supervision.

Read More

AN ASSESSMENT OF SOIL POLLUTION IN URBAN ECOSYSTEMS (WITH MOSCOW AS PRIMARY EXAMPLE)

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The article analyzes the data on the soil quality on the territory of Moscow. The subject of the study is the data on the state of soil pollution in Moscow for 2018 of the Department of Nature Management and Environmental Protection of the City of Moscow of the State Environmental Budgetary Institution “Mosekomonitoring” as well as the data provided by the Moscow City Government Department of Ecology and Nature Management in the Report on the State of the Environment in Moscow in 2018. The current environmental situation plays a significant part in the assessment of the quality of the natural environment, which is the interaction between various environmental conditions, including negative and positive, which create an environment with varying degrees of favorability and unfavorability. The rapid growth of urbanization can lead to a sharp decline in the quality of environmental components. The relevance of this topic lies in the fact that Moscow is a developing metropolis, in which it is necessary to constantly monitor the quality of the soil. The study establishes that the most polluted administrative districts of the city of Moscow are the Southern Administrative District, the South-Eastern Administrative District, and the North-Eastern Administrative District. In these administrative districts, the most frequently observed exceedances of the daily average threshold limit value for various pollutants.

Read More

AN ASSESSMENT OF THE DAMAGE FROM THE TROPHIC ACTIVITY OF ELK (ALCES ALCES, L) IN ANTHROPOGENICALLY DISTURBED TERRITORIES

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The “forest — elk” problem remains one of the most urgent for forestry and hunting. The aim of the current study is to assess the trophic influence of the elk (Alces alces, L) as the largest phytophage of the tree and shrub vegetation. The studies were carried out on two small-scale felling sites: krupnotravnaya (type of forest with a predominance of ferns) (S = 3.2 ha) and ryabinnikovaya (mountain-ash) (S = 3.9 ha) using a continuous list of damaged plants on the sample area (felling) and visual identification of eaten plant parts on sample trees. Conclusion: on the territory of forest ecosystems subject to anthropogenic load, elk is able to cause significant damage to tree and shrub vegetation since these territories no longer meet the optimal properties of its habitat, which is the productivity of forage lands and protective properties. The consequence of strict forest management can be not only the loss of the ecological properties of the forest ecosystem but also the change of coniferous species.

Read More

SERUM PROTEINS OF SELECTED FISH OF THE VOLGA DELTA: AGE AND SEX ASPECTS

Posted in 2021, BIOLOGY, Issue №4 (106) April 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The article explores the anthropogenic impact on the fish biosystems, in particular, the attention is centered on their biochemical blood parameters. The research contains a study of the regularities of changes in blood parameters of fish of the Volga Delta depending on the season, sex, and age. The level of total protein and the ratio of individual protein fractions vary depending on the nature of nutrition and food availability, seasonal rhythm, the degree of sexual maturity, and environmental conditions. The authors of the study demonstrate that the protein composition of blood serum is a highly labile system that reflects changes in the internal environment with high accuracy and under the influence of various factors of abiotic and biotic nature.

Read More

SOME OF FEATURES SEXSUAL AND AGE STRUCTURE OF INDIVIDUALS AZOV ALOSA CASPIA TANAICA IN THE BEGINNING OF SPAWNING FROM THE RIVER OF PROTOKA

Posted in 2013, BIOLOGY, Issue November 2013, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

In the article some sexual and age structure spawning parts of population of the Azov Alosa caspia tanaica which selected from the river of Protoka are considered. Data are presented for 2012 and 2013.

Read More

THE IMPACT OF AGROACTIVE BIOTECHNOLOGICAL PRODUCT ON THE SOIL – PLANT SYSTEM IN THE ENVIRONMENT UNFAVORABLE CONDITIONS

Posted in 2013, BIOLOGY, Issue November 2013, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The study explores the results of Agroactive biotechnological product application, unique joint development of Belgian and Russian scientists. In the conditions of acid rain Agroactive product has substantially improved the soil-biotic complex when growing pumpkin on heavily degraded chernozem soil: the performance indicators of soil enzymatic activity have enhanced, accumulation of essential chemical elements has also increased while toxic elements accumulation in pumpkin fruit has decreased. All these factors allow us to consider the perspective application of Agroactive bioproduct.

Read More

ON THE IMPORTANCE OF COASTAL ROOKERIES IN THE LIFE OF BAIKAL SEALS (PUSA SIBIRICA GM.) IN WARMING CLIMATE CONDITIONS

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

Based on the analysis of the footage obtained during the shooting at one of the main annual coastal rookeries of the Baikal seal (the Tonkiy Island, the Ushkany Islands archipelago, Lake Baikal), the study demonstrates that immediately after the ice disappears, females and males of all age categories come ashore. While the adults dominated in each year of the research, making up 60-70 % of the number of the rookeries, the population of young seals was almost two times smaller compared to the maturing ones (4+-6+ years). This composition of rookeries does not correspond well with the known sex and age structure of the population. Perhaps, due to some age characteristics, adult seals have a greater need for insolation than immature and young seals. Regardless of the specific ice conditions of a year (estimated from satellite images), animals with high nutritional status (on a 4-point scale) always prevailed in the first rookeries at the time of formation. Only a small number of emaciated (thin) animals was observed. The authors explain that this is due to the progressive warming of the climate, which is especially pronounced in the autumn-winter time on Lake Baikal (and not during the high water period) and is stronger in the northern part of Lake Baikal (and not in the southern part) – the periods of ice formation become shorter, the ice reduces in thickness, the time of the destruction of the ice cover and the disappearance of floating ice is reduced.

Read More

EXTRA-ORGAN ARTERIAL BLOOD SUPPLY TO THE RABBIT LIVER BEFORE THE REPRODUCTIVE PERIOD

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The description of extra-organ arteries is of great theoretical and empirical importance for biology, medicine, and veterinary medicine. The functional state of all organs and systems is determined by the level of their blood supply. The liver is undoubtedly an organ that determines the body’s homeostasis to a greater extent. However, many aspects of the structure and branching of the liver arteries during postnatal ontogenesis remain insufficiently studied. In the course of the research, the authors identify the features and course of the arterial vessels of the rabbit liver, in which each lobe of the organ receives its own arterial branch. The study finds no significant changes in arterial blood supply indicators in this period of development and determines the possibility of the presence of intraorgan anastomoses within the main body of the liver, with the exception of the caudate and mastoid processes devoid of vascular communication with neighboring lobes.

Read More

CURRENT STATE OF BIOCENOSIS IN THE PSHEKHA RIVER

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

Based on the results of studying the ichthyofauna, the main groups of aquatic organisms that make up the food base (phytoplankton, zooplankton, zoobenthos), the current article for the first time provides a description and analysis of the qualitative and quantitative characteristics of the community of living organisms in the upper and middle reaches of the Pshekha River in Krasnodar Krai. The study establishes a general pattern in the distribution of phytoplankton, zooplankton, and zoobenthos as well as determines the average number and biomass of organisms in the Pshecha River. The author of the research defines the species composition of the ichthyofauna of the sections of the river under study and calculates the average density of fish distribution. The materials of the conducted research are of both scientific faunal interest and present practical importance in the study of the rational use of water resources in the conditions of anthropogenic impact.

Read More

FUNGI SPECIES OF THE SUILLUS GRAY (SUILLACEAE) GENUS IN THE REPUBLIC OF MORDOVIA

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The current article provides data on the native (forming mycorrhizae with Pinus sylvestris L.) and adventive (forming mycorrhizae with Larix sibirica Ledeb.) species of the genus Suillus that grow on the territory of the Republic of Mordovia. The study describes the description of macro – and micro- signs of Suillus viscidus novel to the republic; indicates the locations of the fruit bodies of Suillus viscidus as well as provides the coordinates and the dates of the finds. The size of the macromycetes found was typical for the species. Herbarium specimens of fruit bodies and photographs of S. viscidus basidiomas are kept in the herbarium of the Komarov Botanical Institute. (LE 314967, LE 314968) and the Mordovian State Smidovich Natural Reserve (HMNR 10026, HMNR 10141, HMNR 10142).

Read More

IMMOBILIZATION OF PROBIOTICS FOR FUNCTIONAL FOOD DEVELOPMENT

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

Probiotic products are a group of functional food with a growing market share and significant commercial interest. The use of immobilization technology helps to increase the viability of probiotic cells both in food products and during their passage through the gastrointestinal tract. The current study analyzes the criteria for the use of probiotic microorganisms and describes the advantages and methods of immobilization technology in the food industry aimed at increasing cell viability. The author of the study examines different natural materials for the immobilization of cells as well as provides examples of using the technology of immobilization of probiotic microorganisms in the creation of functional food.

Read More

MORPHOMETRIC ASPECTS OF THE MYENTERIC PLEXUS OF THE EDILBAY SHEEP OMASUM IN POSTNATAL ONTOGENESIS

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The study examines and for the first time establishes the morphometric aspects of the structural adaptation of nervous tissue in the postnatal ontogenesis of the Edilbay sheep omasum in artificial breeding. All the obtained material is processed in the Research Laboratory of Histophysiology under the N. P. Ogarev Mordovian State University”. The authors studied the nerve tissue of the base of the omasum in the stomach of ruminants. In the experiment, the authors conduct an evaluation of the morphometric parameters of the cross-sectional area of neurons, their nuclei, the thickness of the axon, dendrites, and their number. In histochemical studies, the dynamics of nucleic acid exchange was evaluated using light spectrophotometry. When studying the ganglia of the myenteric plexus of the omasum at the early stages of postnatal ontogenesis under artificial feeding conditions, many morphogenetic processes were realized, including the differentiation of the neurocellular population, the formation of neuroglial and neural-tissue relationships, which demonstrates a high degree of determinacy of development [2].

Read More

BIOLOGY AND MORPHOLOGY OF D. REPENS AND D. IMITIS

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The current article describes Dirofilaria repens and Dirofilaria immitis, the causative agents of dirofilariasis in dogs. The study provides their biological and morphological characteristics as well as their prevalence on the territory of the Chechen Republic. The prevalence was studied by monitoring statistical data on the incidence of dogs in the Republic. In the course of the study, an autopsy was performed on 28 corpses from dogs from the plains, mountain and foothill zones of the Republic. Conclusions on the greatest intensity of the invasion were subsequently drawn from the results of the autopsy. The featured morphological characteristics of the species are based on the literature on parasitology as well as on the data obtained in the course of research. The article introduces data based on the results of research of the types of causative agents of canine dirofilariasis in the Chechen Republic. The objectives of the study are to examine the species composition of pathogens, their features and differences as well as the degree of drug susceptibility of the animals for the treatment of dirophyllariasis. The author determines the biological features of dirophyllaria species, provides a brief description of the treatment method, and suggests preventive measures to reduce the intensity of infestation in dogs on the territory of the Chechen Republic.

Read More

HYPEROXIA AS A MEANS OF RECOVERY OF SWIMMERS AFTER TRAINING SESSIONS IN VARIOUS TYPES OF SPORTS

Posted in 2021, BIOLOGY, Issue №3 (105) March 2021, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

The relevance of the current study lies in the need to search for available out-of-training means to improve performance and accelerate recovery processes in sports. The study examines the influence of a hyperoxic gas mixture on the rate of recovery of carbohydrate metabolism indicators in swimmers after training sessions in various types of sports. Athletes (n=30) were asked to perform three types of loads of different types. The test was performed twice: traditional recovery and recovery using hyperoxia for 10 minutes. It was found that breathing with a mixture of high oxygen content has a greater effect on the recovery of lactate and glucose levels after training sessions aimed at the development of anaerobic alactate and anaerobic glycolytic mechanisms of energy production.

Read More

EFFECT OF HYPERBARIC OXYGENATION ON HEMOSTATIC SYSTEM

Posted in 2013, BIOLOGY, Issue 12(19) December 2013, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

Hyperbaric oxygenation is widely used for reduction of traumatic and burn shock, acute artery trunk occlusion and other conditions. It enhances lipid peroxidation, and can both enhance and reduce platelets activity due to its β –adrenolytic activity (3). Oxidative stress was shown to effect on hemostasis by means of modified proteins and lipids (6) and can induce changes in hemostatic system.

The purposes of the study was to research effect of hyperbaric oxygenation on hemostatic system.

The aim of the study was to explore effect of oxidative stress on components of hemostatic system.

In experiments made on male Wistar rats with mass of 230-250g it was shown that single session of hyperoxygenation lasted for 3 hours at an excessive pressure of 1.15 ATA, reduced thrombin time, increased fibrinogen concentration, reduced blood fibrinolytic activity and caused formation of fibrin monomer complexes. It was established that enhancement of hemostatic potential of the blood is caused by suppression of anticoagulation system activity, therefore during oxygenation therapy hemostatic system should be monitored.

Read More

ROLLE SEED EXCHANGE IN THE COMPLETION OF THE VARIETY OF INTRO-DUCENTS IN THE COLLECTION FUND FOR THE BOTANICAL GARDEN OF VORONEZH STATE UNIVERSITY

Posted in 2013, BIOLOGY, Issue 12(19) December 2013, БИОЛОГИЧЕСКИЕ НАУКИ | 0 comments

In the article it is discussed the leading part of the seed exchange between the botanical gardens for the development of collection funds. Is carried out the analysis of the state of the collection of rare decorative grassy longstanding introducents in the botanical garden of Voronezh State University.

Read More