scholarly journals STRUCTURAL CHANGES IN PROSTATE OF REPRODUCTIVE AGE RATS UNDER IMMUNOSUPPRESSION

2018 ◽  
Vol 35 (3) ◽  
pp. 79-86
Author(s):  
S A Kaschenko ◽  
A A Zakharov
Keyword(s):  
Epithelial Cells ◽  
Body Mass ◽  
Structural Changes ◽  
Microscopic Level ◽  
The Body ◽  
Reproductive Age ◽  
Cell Nuclei ◽  
Experimental Animals ◽  
White Rats ◽  
Level Height

Aim. To establish the structural changes in the prostate of reproductive experimental animals in conditions of long immunosuppression. Materials and methods. Sixty white rats of reproductive age were studied. The state of immunosuppression was modeled with intramuscular introduction of cyclophosphamide in the dose of 1.5 mg/kg of the body mass during 10 days. Linear sizes and volume of the organ were determined. At the microscopic level, height and width of epithelial cells, their volume as well as large and small diameters and cell nuclei volumes were determined. Results. In response to long immunosuppressive impact, organometric indices of the prostate both in the early (on days 7, 15) and late (on day 30) observation periods decreased owing to indirect cytotoxic impact of cyclophosphamide on the glandular and stromal components of the organ. Conclusions. The decreased values of linear-volumetric micromorphometric indices within the same observation periods confirm the dynamics of organometric parameters of the gland and prove intensive response of the organ at micro-and-submicroscopic level.

EVALUATION OF TOXIOLOGICAL INDICATORS OF MONTHMORRILLONITE CLAY FOR THE PURPOSE OF USING THEM AS ALUMOSILICATE SOBENT AGAINST THE NEGATIVE EFFECT OF MYCOTOXINS ON THE BODY OF ANIMALS AND BIRDS

2021 ◽  
Vol 1 (1) ◽  
pp. 72-78
Keyword(s):  
Experimental Studies ◽  
The Body ◽  
Montmorillonite Clay ◽  
Test Substance ◽  
Negative Effects ◽  
Experimental Animals ◽  
Eyelid Edema ◽  
White Rats ◽  
Mucous Membranes ◽  
Negative Effect

The article presents the results of laboratory studies to assess the toxicological parameters of montmorillonite clay from the Pogadaevskoye deposit in the West Kazakhstan region in order to use them as an aluminosilicate sorbent in the composition of feeds that reduce the negative effects of mycotoxins on the body of animals and birds. The relevance of research is associated with the cultivation of healthy and highly productive animals and poultry in order to ensure the food security of the Republic of Kazakhstan.The studies carried out to assess the toxicological parameters of montmorillonite clay in order to use them as an aluminosilicate sorbent in experimental animals (rabbits and white rats) allowed the following results to be obtained: Visual study of the intensity of erythema when exposed to the test substance on the skin of rabbits showed their absence (0 points). The study of the intensity of edema (an increase in the thickness of the skin clutch of rabbits) when exposed to the test substance on the skin of rabbits showed no reaction (0 points). Studies evaluating the irritating effect of the test substances on the mucous membranes of the eyes of rabbits by symptoms of damage showed the absence of hyperemia (0 points). Weak eyelid edema (1 point), the minimum amount of discharge in the corner of the eye (1 point). The results of studies on the classification assessment of the test substance for the severity of the irritant effect on the eyes of rabbits showed that the average total score of the severity of the irritative effect corresponds to 1 point. A comprehensive analysis of the results obtained on the basis of scientific and experimental studies to assess the toxicological indicators of montmorillonite clay from the Pogadaevskoye deposit in relation to irritating effects on the skin and mucous membranes of experimental animals (rabbits) showed their harmlessness.

scholarly journals Toxicity assessment of a technical product of the triazole class

2020 ◽  
Vol 99 (11) ◽  
pp. 1276-1279
Author(s):  
Valery N. Rakitskii ◽  
Tatiana M. Epishina ◽  
Elena G. Chkhvirkiya
Keyword(s):  
Body Weight ◽  
The Body ◽  
Male Rats ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
High Biological Activity ◽  
Experimental Animals ◽  
Technical Product ◽  
White Rats ◽  
Toxicological Studies

Introduction. Historically, pesticides are evaluated more strictly from a medical point of view than other chemicals. Since their features, such as deliberate introduction into the environment, the possibility of contact with them by large masses of the population, and the high biological activity determine their potential danger to humans. Purpose of research - study of the biological effect of a technical product derived from triazoles when it is repeatedly ingested orally in mammals (rats), establishment of inactive and active doses, justification of the permissible daily dose (DSD) for humans. Material and methods. In acute experiments, white rats were used, including 6 animals in the group. Tested dose: 500-4000 mg/kg of body weight. A chronic (12 months) experiment was performed on 80 male rats with a bodyweight of 180-190 g at the beginning of the study. Tested doses: 5.0; 16.0 and 55.0 mg/kg of body weight (1 control and 3 experimental animals, 20 individuals each). In the dynamics of the experiment, we observed the condition and behavior of animals, water, and food consumption, recorded the timing of death, changes in body weight, physiological, biochemical, and hematological indices. Results. Indices of the acute oral toxicity on the studied product LD50 male rats were 2250 ± 483 mg/kg body weight. The dose of 5.0 mg / kg of body weight was not found to cause significant changes in all studied indices. The doses of 16.0 and 55.0 mg/kg of body weight had a polytropic effect on the body in experimental animals. Discussion. The studied product for the acute oral toxicity refers to low-hazard compounds, the doses of 16.0 and 55.0 mg/kg of body weight has a polytropic effect on the mammalian body, causing changes in carbohydrate, lipid, and lipoprotein metabolism in the body of rats - was accepted as acting. The dose of 5.0 mg / kg of body weight, when administered in rats, there are no changes in all the studied parameters throughout the experiment, is accepted as invalid. Based on the inactive dose-5.0 mg/kg of body weight and taking into account the reserve factor of 100, we have scientifically justified DSD for a person at the level of 0.05 mg/kg. Summary. The conducted sanitary and Toxicological studies indicate the need to assess the toxicity of new technical products to the mammalian body, to increase the reliability of the developed hygiene standards in environmental objects and food products.

To the doctrine of the intravital coloration of the reticuloendothelial system in experimental animals

1930 ◽  
Vol 26 (4) ◽  
pp. 438-438
Author(s):  
L. I. Vilensky
Keyword(s):  
Connective Tissue ◽  
Reticuloendothelial System ◽  
The Body ◽  
Experimental Animals ◽  
White Rats ◽  
Medical Societies ◽  
Physiological Properties ◽  
Reticulo Endothelial System

Meetings of medical societies. Society of Physicians at Kazan University. General Sessions Session 4 March 1930 L.I. Vilensky. Towards the doctrine of the intravital coloration of the reticuloendothelial system in experimental animals. On the basis of a study of 267 animals of various species (rabbits, rats, pigs, white mice, white rats and dogs) the vivo coloring of trypanblau, pyrrholblau, carmine and collargol, the author comes to the following conclusions: 1) All active cellular elements of the indifferent connective tissue that has retained the embryonic properties of the mesenchyme. 2) Teaching-Aschoff's, in the light of intravital coloration, should be expanded, as the teaching of an active mesenchyme, scattered throughout the body, but united by common physiological properties. 3) The process of gradual absorption of colloidal paint in individual elements of the reticulo-endothelial system has a certain pattern, which is exactly the same in different animals.

scholarly journals Chomatin mass from previously aggregated, pyknotic, and fragmented monolayer nuclei is a source for dome cell nuclei generated by amitosis: Differentiation of Ishikawa Domes, Part 3

2016 ◽  
Author(s):  
Honoree Fleming
Keyword(s):  
Epithelial Cells ◽  
Nuclear Structure ◽  
Cell Membranes ◽  
Structural Changes ◽  
Cell Nuclei ◽  
Vacuole Formation ◽  
Hematoxylin Staining ◽  
Cavity Filling ◽  
Irregular Mass ◽  
Endometrial Epithelial Cells

Ishikawa endometrial epithelial cells are capable of differentiation from monolayer cells into fluid-enclosing hemispheres through a surprisingly complex series of structural changes as discussed in this and in two accompanying papers (Fleming, 2016a; Fleming 2016b). The process starts with the dissolution of cell membranes in defined regions throughout a monolayer that has been stimulated to differentiate (Fleming, 1995). Aggregated nuclei become wrapped in membranes containing mitochondrial carboxylases, and apparently generated by contiguous mitochondria. These mitonucleons are involved in vacuole formation that elevates the syncytium into a predome (Fleming, 2015a). The mitonucleons begin to fall apart several hours after formation as the enveloping membranes are breached and the pyknotic chromatin undergoes profound changes (Fleming, 2015b). Chromatin deconstruction, with attendant disappearance of the typical ovoid nuclear structure, results in chromatin fibers that fill the envelope formed by the apical and basal membranes of the syncytium, now stretching over a cavity filling with fluid. In the next several hours, hematoxylin staining, greatly diminished when nuclei were fragmented, reappears in an irregular mass of chromatin out of which nuclei form amitotically and increase in numbers until they fill the envelope. Subsequently cell membranes form around the nuclei. Domes can enlarge and even extend into tubules by becoming vacuolized and undergoing the same amitotic process that created the dome initially.

scholarly journals Effect of clenbuterol on growth, nitrogen and energy balances and endocrine status in food-restricted sheep : research communication

2002 ◽  
Vol 73 (3) ◽  
Author(s):  
L.A. Cardoso ◽  
O. Taveira
Keyword(s):  
Growth Factor ◽  
Body Mass ◽  
The Body ◽  
Serum Concentrations ◽  
Experimental Animals ◽  
Endocrine Status ◽  
Energy Retention ◽  
Serra Da Estrela ◽  
Energy Balances ◽  
Energy Maintenance

The aim of this study was to examine the effect of the b2-adrenoceptor clenbuterol on food-restricted sheep. Clenbuterol was administered as a dietary admixture (4 mg/ kg diet) to a group of male Serra da Estrela sheep (n = 6).The animals were housed individually in metabolic cages and fed for 45 days at 65 % of estimated requirement for energy maintenance. An untreated group with the same energy intake level was included as a control. Changes in body mass, nitrogen and energy balances and insulin, insulin-like growth factor (IGF-1), and triiodothyronine (T3) levels in the experimental animals were monitored. During the 4th week of the trial, clenbuterol-treated sheep showed increased mass gains, greater energy retention and serum IGF-1 levels and decreased T3 serum concentrations. This study showed that clenbuterol may induce a protective effect in sheep subjected to periods of food deprivation, based on the body mass and digestible energy effects manifested by treated animals.

Therapeutic non-contraceptive properties of the drug containing ethinylestradiol 0.03 mg and drospirenone 3 mg

GYNECOLOGY ◽  
2019 ◽  
Vol 21 (5) ◽  
pp. 65-68
Author(s):  
Natalia V Artymuk ◽  
Olga A Tachkova
Keyword(s):  
Body Mass Index ◽  
Body Weight ◽  
Body Mass ◽  
Randomized Study ◽  
Clinical Effectiveness ◽  
The Body ◽  
Reproductive Age ◽  
Anthropometric Parameters ◽  
To Receive ◽  
Prescribing Information

Aim. To compare effects of the drug containing ethinylestradiol (EE) 0.03 mg and drospirenone (DRSP) 3 mg and the drug containing EE 0.02 mg and DRSP 3 mg on the skin and anthropometric parameters. Materials and methods. A prospective comparative randomized study included 40 women of reproductive age who didn’t have contraindications to use of combined oral contraceptive (COCs). The first group consisted of 20 women who were administrated EE 0.03 mg and DRSP 3 mg in the 21/7 regimen according to a prescribing information; the 2nd group included 20 patients who were administrated EE 0.02 mg and DRSP 3 mg in the 24/4 regimen according to a prescribing information. The study protocol included 8 visits: at the 0th visit, the inclusion and exclusion criteria were evaluated, at the 1st visit patient were randomized (envelope method) to receive one or another drug, at the 2nd - 7th visits (once a month) blood pressure was measured, anthropometric parameters were determined including body weight, height, waist, hips as well as body mass index, a degree of hirsutism (with Ferriman-Gallwey scale), skin and hair skin oiliness, acne (with a 10-point visual scale) were evaluated. Results. The use of EE 0.03 mg and DRSP 3 mg for 6 months did not significantly affect the body weight and body mass index, waist and hips. In the 6th month, the use of EE 0.03 mg and DRSP 3 mg lead to a statistically significant decrease in skin oiliness, severity of acne and hirsutism, which was comparable to a clinical effectiveness of EE 0.02 mg and DRSP 3 mg. Conclusions. EE 0.03 mg and DRSP 3 mg has a similar effect on skin oiliness, severity of acne and hirsutism with EE 0.02 mg and DRSP 3 mg, without significantly affecting the main anthropometric parameters. It is likely that the effect of DRSP-containing COCs on androgen levels and adipose tissue is due precisely to the effect of DRSP, and not to the dose of EE.

Features of metabolic and hormonal abnormalities in women with metabolic syndrome at the stage pregrada

2017 ◽  
pp. 57-61
Author(s):  
O.A. Dyndar ◽  
Keyword(s):  
Metabolic Syndrome ◽  
Body Mass Index ◽  
Body Mass ◽  
Reproductive System ◽  
The Body ◽  
Reproductive Age ◽  
High Density Lipoproteins ◽  
Women Of Reproductive Age ◽  
Female Population ◽  
Number Of Components

The problem of obesity and metabolic syndrome among the female population of Ukraine is extremely important, given the current trend toward increasing age of realization of reproductive function,. The prevalence of metabolic syndrome among women of reproductive age is 6–35%, fertility problems are found in 30-35% of women. The objective: to study the characteristics of metabolic disorders and hormonal condition of the reproductive system in women with obesity and the metabolic syndrome on pregravidarity stage depending on the body mass index and severity of metabolic syndrome. Patients and methods. We examined a total of 124 women with obesity and metabolic syndrome that appealed on pregravidar stage and 53 women who had no history of somatic and gynecological pathology. Antropometric studies, determination of blood pressure, examination of carbohydrate and lipid metabolism, evaluation of the endocrine status of the reproductive system, ultrasound examination of small pelvis organs were done. Results. In women of reproductive age, we observed increase of total cholesterol, triglycerides, low-density lipoproteins and decrease high-density lipoproteins, with a predominance of IIb and IV types of dyslipidemia. Insulin resistance was diagnosed in 28.3% of women And 47.4% – II and in 69.7% with III degree of obesity. Metabolic syndrome was diagnosed in 79.2% of patients with obesity of I, in 94.7% – II 100% III. The number of components of metabolic syndrome correlate directly proportional to the severity of obesity. The index of fertility with III degree of obesity increased to 2.7, hypoestrogenia marked with And hyperestrogenia from 50.7% of women in II and III degree of obesity, progesterona failure identified at 66.9%, hyperandrogenism in 58.8%, reduced sex-binding globulin in 83.0% of the observations. Conclusion. Pathological changes of the hormonal status of the female reproductive system on prepregnansy stage is directly proportional to depend on the body mass index number of components of metabolic syndrome and dysmetabolic disorders. Key words: obesity, metabolic syndrome, pregnancy planning.

scholarly journals Chomatin mass from previously aggregated, pyknotic, and fragmented monolayer nuclei is a source for dome cell nuclei generated by amitosis: Differentiation of Ishikawa Domes, Part 3

2016 ◽  
Author(s):  
Honoree Fleming
Keyword(s):  
Epithelial Cells ◽  
Nuclear Structure ◽  
Cell Membranes ◽  
Structural Changes ◽  
Cell Nuclei ◽  
Vacuole Formation ◽  
Hematoxylin Staining ◽  
Cavity Filling ◽  
Irregular Mass ◽  
Endometrial Epithelial Cells

Ishikawa endometrial epithelial cells are capable of differentiation from monolayer cells into fluid-enclosing hemispheres through a surprisingly complex series of structural changes as discussed in this and in two accompanying papers (Fleming, 2016a; Fleming 2016b). The process starts with the dissolution of cell membranes in defined regions throughout a monolayer that has been stimulated to differentiate (Fleming, 1995). Aggregated nuclei become wrapped in membranes containing mitochondrial carboxylases, and apparently generated by contiguous mitochondria. These mitonucleons are involved in vacuole formation that elevates the syncytium into a predome (Fleming, 2015a). The mitonucleons begin to fall apart several hours after formation as the enveloping membranes are breached and the pyknotic chromatin undergoes profound changes (Fleming, 2015b). Chromatin deconstruction, with attendant disappearance of the typical ovoid nuclear structure, results in chromatin fibers that fill the envelope formed by the apical and basal membranes of the syncytium, now stretching over a cavity filling with fluid. In the next several hours, hematoxylin staining, greatly diminished when nuclei were fragmented, reappears in an irregular mass of chromatin out of which nuclei form amitotically and increase in numbers until they fill the envelope. Subsequently cell membranes form around the nuclei. Domes can enlarge and even extend into tubules by becoming vacuolized and undergoing the same amitotic process that created the dome initially.

scholarly journals Morphological and functional state of liver of sex matured females of white rats in the conditions of experimental toxic hepatitis

2015 ◽  
Vol 17 (2) ◽  
Author(s):  
L. Ye. Lymar
Keyword(s):  
Experimental Study ◽  
Toxic Hepatitis ◽  
Reproductive Function ◽  
Reproductive Age ◽  
Women Of Reproductive Age ◽  
Experimental Animals ◽  
White Rats ◽  
Liver Functions ◽  
Chronic Toxic Hepatitis ◽  
Experimental Toxic Hepatitis

<p>Parafunctions of organs of the reproductive system occupy one of the main places among gynaecological diseases<br />and are the issue of the day, because they result not only in the loss of capacity but also decline of reproductive function.<br />Concomitant diseases play a considerable role in the development of this pathology. Women of reproductive age<br />often have combination of violations of menstrual function with chronic hepatitis of different genesis. With the aim of<br />the detailed study and analysis of the indicated problem an experimental study was undertaken. We made a model<br />of chronic toxic hepatitis for the sex matured females of white rats. There were studied the results of morphological<br />changes in the liver of experimental animals, state of enzymatic, protein-synthesizing liver functions in the conditions<br />of experimental toxic hepatitis and their correlation with the results of clinical and biochemical researches. 50 sex<br />matured females of white rats were examined whom chronic toxic hepatitis (CT H) was modelled.</p>

ECOLOGICAL AND HYGIENIC INVESTIGATION OF THE ADAPTOGENIC HERBAL PRODUCTS TO INCREASE RESISTANCE OF THE ORGANISM TO CONDITIONS OF LOW AND HIGH TEMPERATURES

2016 ◽  
Vol 1 (61) ◽  
pp. 46-51
Author(s):  
Литовченко ◽  
Ekaterina Litovchenko ◽  
Коршунова ◽  
Natalya Korshunova ◽  
Доровских ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
High Temperatures ◽  
Malonic Dialdehyde ◽  
Antioxidant Effect ◽  
The Body ◽  
Diene Conjugates ◽  
Herbal Products ◽  
Experimental Animals ◽  
White Rats ◽  
Methodological Approaches

The purpose of this research was to study the possibility of using of food products from a mixture of Hypericum perforatum (HP) and Rhodiola rosea (RR) for the stimulation of the body´s compensatory responses to the conditions of high and low temperatures. Experiments have been conducted on experimental animals (150 white mongrel rats) in accordance with generally accepted methodological approaches. Antioxidant effects in the organism of white rats have been studied at the initiation of the processes of lipid peroxidation by the introduction of carbon tetrachloride. We were determined the products of lipid peroxidation (diene conjugates, hydroperoxides of lipids, malonic dialdehyde) for the evaluation of antioxidant effect in accordance with generally accepted methodological approaches. Researches of cold and heat adaptation reactions of experimental animals have been conducted by using the model of a long cold and heat action with appropriate climatic chambers. It was established experimentally that in doses of 150-300 mg/kg daily of the studied mixture has a strong antioxidant effect in the conditions of cold and heat stress on warm-blooded organism. The research allows to recommend a mixture of HP and RR as а regulator of adaptive reactions of the organism when exposed to low and high temperatures.

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