scholarly journals Treatment of hepatitis induced by anti-tuberculosis drugs (experimental research)

2020 ◽  
Vol 6 (3) ◽  
pp. 33-39
Author(s):  
Vladimir N. Fedorov ◽  
Nikolai A. Smirnov ◽  
Vladimir P. Vdovichenko ◽  
Tatyana B. Fedorova ◽  
Edgar E. Kerbenev ◽  
...  
Keyword(s):  
Chorionic Gonadotropin ◽  
Biochemical Parameters ◽  
White Male ◽  
Research Data ◽  
Male Rats ◽  
Regenerative Processes ◽  
Drug Induced ◽  
Long Period ◽  
Comparison Groups ◽  
Healthy Control

Introduction: Tuberculosis is a widely spread infection. While treating patients for it, they are given simultaneously and for a long period 5-6 antibacterial drugs, which are, as a rule, bad for the liver. It quite often (up to 20%) causes drug-induced hepatitis. As experimental means of protecting the liver, the following peptides are suggested: chorionic gonadotropin, a recombinant drug of luteinizing hormone – luveris, and oligopeptide drugs: semax and selank. Materials and Methods: The research was conducted on 104 outbred white male rats weighing 170-220 g. Each group included at least 10 animals. Drug-induced hepatitis was simulated through the combined 21-day administration of isoniazid, rifamycin, and ethanol. Chorionic gonadotropin, luveris, semax and selank, as well as a comparison drug mexidol, were administered once a day during the experiment. Healthy control animals and rats with drug-induced hepatitis were used as comparison groups. For evaluation of the efficiency of administered drugs, the obtained biochemical and histomorphological research data was used. Results and Discussion: During the experiment, chorionic gonadotropin (ChG), semax and selank showed a greater therapeutic activity than mexidol and luveris. Only in the case of administering ChG, selank and semax, there was parallelism between the restoration of biochemical parameters of blood and histomorphological parameters of the liver. Administering both selank and ChG was also characterized by more active regenerative processes. Conclusion: Administering ChG, selank and semax to patients with tuberculosis would significantly reduce the number and severity of hepatotoxic reactions.

scholarly journals Selank and semax as potential hepatoprotectors in medical treatment of tuberculosis

2019 ◽  
Vol 5 (4) ◽  
pp. 33-39
Author(s):  
Alexey K. Petrovsky ◽  
Nikolay A. Smirnov ◽  
Vladimir P. Vdovichenko ◽  
Tatiana B. Fedorova ◽  
Edgar E. Kerbenev ◽  
...  
Keyword(s):  
White Male ◽  
Regulatory Peptides ◽  
Liver Lesion ◽  
Male Rats ◽  
Tuberculous Infection ◽  
Drug Induced ◽  
Long Time ◽  
Healthy Control ◽  
Increased Activity ◽  
Experimental Group

Introduction: Drug-induced hepatitis is common in clinical practice. This problem is particularly relevant in the treatment of tuberculous infection, because for this purpose, up to 5–6 hepatotoxic drugs are used simultaneously for a long time, which often (in 15–20% of cases) leads to medical liver lesion. To protect the liver, Semax and Selank are offered – drugs of regulatory peptides group. Materials and Methods: The research was conducted on 96 outbred white male rats weighing 180–220 g. The experimental group included about 10 animals. Drug-induced hepatitis was simulated through the combined 21-day administration of isoniazid, rifampicin and ethanol. Semax and Selank, as well as Essentiale N and Mexidol (comparison drugs) were administered once a day during the experiment. Healthy control animals with experimental hepatitis were used for comparison. Subsequently, the obtained biochemical and histomorphological parameters were evaluated. Results and Discussion: In the experiment, Semax and Selank showed a greater therapeutic activity than the recognized hepatoprotectors – Essentiale and Mexidol. Only in the case of administering Selank and Semax, there was parallelism between the restoration of biochemical parameters of blood and histomorphological parameters of the liver. Selank was also characterized by an increased activity of regenerative processes. Conclusion: Administering Selank and Semax to patients with tuberculosis would significantly reduce the number and severity of hepatotoxic reactions.

scholarly journals HISTOLOGICAL AND MORPHOMETRIC CHANGES OF THE RAT TESTES AFTER EXPERIMENTAL THERMAL INJURY AND APPLICATION OF XENODERMAL SUBSTRATE

2019 ◽  
Vol 18 (4) ◽  
pp. 17-23
Author(s):  
S. Yu. Mukha
Keyword(s):  
Burn Injury ◽  
White Male ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Structural Components ◽  
Regenerative Processes ◽  
Vascular Disorders ◽  
Mean Values ◽  
Thermal Trauma ◽  
Relative Normalization

The aim of this work was to establish the histological and morphometric changes of the structural components of the rat testes after experimental thermal trauma and under condition of correction. Object and methods. The study was performed on 48 sexually mature outbred white male rats following the rules of bioethics. The experimental animals were divided into three groups: intact; with severe thermal trauma; with burn injury and application of xenodermal substrate after early necrectomy of the damaged tissues. Results and discussion. Already on the 7th day after application of xenodermal substrate the processes of reparative regeneration of hemocapillaries is activated, the degree of vascular disorders and damages of the structural components of the testes are decreased, and regenerative processes are activated. The percentage of significantly altered seminiferous tubules is 1.90-fold lower than in animals without correction. In the later stages of the experiment, the usage of the xenodermal substrate contributes to an active flow of regenerative processes and a relative normalization of all the structural components of the testes. Morphometric indicators of mean values of diameter and area of convoluted tubes on the 21th day were significantly (p<0.001) higher by 1.39 times and 2.00 times relative to the indicators in the group of animals without correction. Areas with unchanged histostructure are dominated in the testes at this term. The percentage of significantly altered tubules was 10.58 times lower than the corresponding value in animals with burn injury without correction. Conclusions. Thus, the application of a xenodermal substrate on a wound formed after necrectomy of thermally damaged areas was found to contribute to a significant reduction of vascular disorders and destructive changes of spermatogenic cells. Better state of intracellular components and activation of regeneration contribute to a relative normalization of the testicular structure and morphometric indices in the later terms of the experiment.

Effects of paroxitine on biochemical parameters and reproductive function in male rats

2019 ◽  
Author(s):  
Rachid Mosbah ◽  
Aziz Chettoum ◽  
Zohir Djerrou ◽  
Alberto Mantovani
Keyword(s):  
Biochemical Parameters ◽  
Reproductive Function ◽  
Male Rats

THYMUS VARIABILITY IN WHITE RATS EXPOSED TO FORMALDEHYDE

2019 ◽  
pp. 105-116
Author(s):  
V.N. Voloshin ◽  
I.S. Voloshina ◽  
I.Yu. Vash
Keyword(s):  
White Male ◽  
Principal Component ◽  
Middle Part ◽  
Procrustes Analysis ◽  
Male Rats ◽  
Canonical Variables ◽  
Generalized Procrustes Analysis ◽  
White Rats ◽  
Main Component ◽  
Formaldehyde Inhalation

The aim of the paper is to study thymus variability in white rats, which were exposed to formaldehyde, and to compare these data with the indicators in control animals. Materials and Methods. The trial enrolled 72 white male rats, initial body weight 40–50 g. The animals were divided into 2 groups (36 rats in each). The first group consisted of control rats. Animals of the second group were exposed to formaldehyde inhalation, 2.766 mg/m3. To characterize the variability of the organ size, centroids were determined. The superposition of landmark configurations was performed using the generalized Procrustes analysis method, MorphoJ 1.06d program. The principal component analysis and canonical analysis of the obtained data were carried out. Results. One-Way ANOVA revealed a high level of intergroup differences in Procrust distance (F=1.34; p<0.0001). The significant effect of the duration of formaldehyde exposure on centroid size was established. The Kruskal-Wallis criterion was 19.778 (p=0.0014). The analysis of the principal components indicated that each of the first 10 components stands for more than 1 % of Procrustes coordinate variance. In this case, the first 7 components compatibly explain 91.398 % of thymus variability. The proportion of the first main component to the total variance of the Procrustes coordinates is 40.236 %. PC1 (-) shows changes in the thymus shape, mostly affecting the tops of its lobes, the middle part of the right boundary and the entire left thymus boundary. The scattering ellipses of the thymus ordinates in rats exposed to formaldehyde, in the first two canonical variables are located higher than those in the control animals. Conclusion. Formaldehyde inhalation leads to thymus changes in white rat. The most significant differences with control data are determined along the second canonical variable. Keywords: thymus, form, rat, formaldehyde, geometric morphometry. Цель. Изучение изменчивости формы тимуса белых крыс, находившихся в условиях влияния формальдегида, и сравнение этих данных с показателями, полученными у контрольных животных. Материалы и методы. Работа выполнена на 72 белых крысах-самцах с начальной массой тела 40–50 г. Животные были разделены на 2 серии (по 36 крыс). Первую серию составляли контрольные крысы. Животные второй серии подвергались ингаляционному воздействию формальдегида (ФА) в концентрации 2,766 мг/м3. Для характеристики изменчивости размеров органов определяли размер их центроидов. Процедуру суперимпозиции конфигураций ландмарок выполняли методом генерализованного прокрустова анализа с использованием программы MorphoJ 1.06d. Проводили анализ главных компонент и канонический анализ полученных данных. Результаты. Однофакторный дисперсионный анализ выявил высокий уровень межгрупповых различий по показателю прокрустовых расстояний (F=1,34; р<0,0001). Установлено значительное влияние продолжительности нахождения животных в условиях воздействия ФА на размер центроида. Критерий Краскела–Уоллиса составил 19,778 (р=0,0014). Анализ главных компонент указывал на то, что каждая из первых 10 компонент объясняет более 1 % дисперсии прокрустовых координат. При этом первые 7 компонент совместно объясняют 91,398 % изменчивости формы тимуса. Вклад первой главной компоненты в общую дисперсию прокрустовых координат составляет 40,236 %. РС1 (–) показывает изменения формы тимуса, в большей степени затрагивающие верхушки его долей, среднюю часть правого контура и весь левый контур тимуса. Эллипсы рассеивания ординат тимусов, принадлежащих крысам, подвергавшимся влиянию ФА, в пространстве первых двух канонических переменных расположены выше по отношению к таковым контрольных животных. Заключение. Ингаляционное воздействие формальдегида приводит к изменению формы тимуса белых крыс. Наибольшие различия с контрольными данными определяются вдоль второй канонической переменной. Ключевые слова: тимус, форма, крыса, формальдегид, геометрическая морфометрия.

scholarly journals Effects of peptidic growth hormone secretagogue receptor (GHS-R) antagonist [D-Lys3] on some of serum hormonal and biochemical parameters in Wistar rat model

2014 ◽  
Vol 58 (3) ◽  
pp. 288-291 ◽  
Author(s):  
Habib Aghdam Shahryar ◽  
Alireza Lotfi
Keyword(s):  
Total Protein ◽  
Biochemical Parameters ◽  
Serum Lipids ◽  
Considerable Increase ◽  
Wistar Rat ◽  
Male Rats ◽  
Growth Hormone Secretagogue Receptor ◽  
Growth Hormone Secretagogue ◽  
Glucose Levels ◽  
Blood Glucose Levels

Objective : The present study investigated the effects of different dosages of a GHS-R antagonist [D-Lys3] on some serum hormonal (cortisol, T3 and T4) and biochemical parameters in a rat.Materials and methods : Thirty-six 60-day-old male rats were assigned to four treatments. [D-Lys3]-GHRP-6 solutions were infused via intraperitoneal injections. Blood was collected and analyzed.Results : The large dosages of a GHS-R antagonist (200 ng/kg BW) caused increases in cortisol, whereas no significant changes occurred when low dosages were injected. There were no significant changes in T3 and T4 following the administration of the GHS-R antagonist, but a considerable increase was observed in blood glucose levels of the groups (G50, G100, and G200 ng/kg BW). There was a significant increase in total protein when the greatest dose was administrated (G200 ng/kg BW). However, total cholesterol, triglycerides, and albumin showed no significant changes.Conclusions : Exogenous GHS-R antagonist can cause an increase in glucose and moderate increases in cortisol and total protein, yet it has no significant effect on T3 and T4 levels or on the concentrations of serum lipids. The effect of GHS-R antagonist is not completely adverse to the effects of ghrelin. Further molecular studies are necessary to identify the physiological effects of the peptidic GHS-R antagonist. Arq Bras Endocrinol Metab. 2014;58(3):288-91

scholarly journals Efektivitas Ekstrak Teh Hijau (Camellia sinensis L.) terhadap Penurunan Kadar Glukosa Darah Puasa Tikus Wistar (Rattus norvegicus) yang diInduksi Aloksan

2020 ◽  
Vol 15 (1) ◽  
pp. 86-97
Author(s):  
Hafshah . ◽  
Kristina Simanjuntak
Keyword(s):  
Green Tea ◽  
Fasting Blood Glucose ◽  
White Male ◽  
Green Tea Extract ◽  
Male Rats ◽  
Test Results ◽  
Male Wistar Rats ◽  
Bonferroni Test ◽  
Tea Extract ◽  
Post Hoc

The sufferers of Diabetes Mellitus (DM) in Indonesia is the highest with fourth number in the world, with a mortality rate of 1.2 million in 2012. Because of it, DM research using antihyperglycemic green tea is needed. This study aims to determine the effectiveness of green tea extracts on decreasing fasting blood glucose (KGDP) levels in alloxan-induced white male Wistar rats. Samples were 30 male rats, aged 8-12 weeks, weight ± 200 grams. Rats were grouped into 6 groups with the first group (K1) as a control, the second group (K2) induced alloxan, the third group (K3) induced alloxan with glibenclamide, the fourth group (K4), the fifth group (K5), and the sixth group (K6) induced alloxan with green tea extract as the treatment with dose of green tea extract, 200 mg/kg, 400 mg/kg, and 800 mg/kg. The first, FBG level examination is done 3 days after induction of alloxan using a glucometer. Giving green tea extract was given for 16 days orally, then FBG level re-examined from the tail of rats. One Way ANOVA Test Results, there is the effectiveness of green tea extract on reducing FBG level (p = 0,000). The post hoc Bonferroni test showed that giving 800 mg/kg of green tea extract was the best dose in reducing KGDP close to normal (p = 0,000).

scholarly journals Determination of the cumulative and skin-resorptive action of the Zoodizin disinfectant

2020 ◽  
Vol 22 (97) ◽  
pp. 26-30
Author(s):  
O. L. Nechyporenko ◽  
A. V. Berezovskyy ◽  
T. І. Fotina ◽  
R. V. Petrov
Keyword(s):  
Skin Irritation ◽  
White Male ◽  
Cumulative Effect ◽  
Female Rats ◽  
Male Rats ◽  
White Female ◽  
Test Substance ◽  
High Concentration ◽  
White Rats ◽  
Single Effect

The rational organization and implementation of effective disinfection activities plays an important role in the complex of measures for the prevention of infections. The development and introduction of new disinfectants into production is an urgent issue of modern poultry farming. When developing a disinfectant, it is important to determine the cumulative effect of the drug. The purpose of the study was to determine the cumulative and skin-resorptive action of the disinfectant “Zoоdizin”. For the toxicological study of the drug used healthy white male rats and white female rats weighing 200 ± 10 g 1.5 years of age. To study the toxicity of the drug “Zoоdizin” when applied to the skin used the method of immersion of the tails of rats in a test tube with the test substance. The tail was injected 2/3 into a regular tube with a 5 % solution of the drug “Zoоdizin”. The tube was closed with a cork ring whose diameter was slightly larger than the tail diameter. For 15 days, the tubes were placed daily in a water bath at 28–30 °C for 2 hours. Control animals tails were immersed in distilled water. To establish the local action of the drug “Zoodizin” on the mucous membranes of the study drug was introduced into the conjunctival sac of the right eye of the rabbit at a dose of 50 mg, and in the left eye was buried saline in a volume of 0,05 cm3. When studying the cumulative effect of Zoоdizin, no significant changes in the biochemical parameters in the serum of rats were observed. In the study of possible irritant or damaging effect on the skin and the development of contact non-allergic dermatitis found that a single application of disinfectant “Zoоdizin” on the unaffected skin of the back of white rats in the maximum significant recommended concentration of working solutions (2 %) did not cause signs. The single effect of the drug on the intact areas of the skin did not cause skin irritation, but it can be stated that prolonged daily epicutaneous exposure of high concentration (5 %) of the solution of the drug “Zoоdizin”, which is 2.5 times higher than the maximum recommended concentration, caused a general resorption. When assessing the cumulative properties, it was taken into account that the total dose administered to rats was Zodizin 42000 mg/kg body weight and did not result in animal death. It did not allow to calculate the cumulative coefficients for the “lethal effect”. A single effect of the product on the intact areas of the skin did not cause skin irritation, but it can be stated that prolonged daily epicutaneous exposure of a high concentration (5 %) of the Zodizin solution, which is 2.5 times the maximum recommended concentration, caused a general resorption. In the future, it is planned to study the virulidal properties of the biocide “Zoоdizin”.

scholarly journals Regeneration of deep cut wounds of the skin with different options of local treatment

2018 ◽  
pp. 34-41
Author(s):  
А.Ю. Еськова ◽  
О.В. Большакова ◽  
Е.П. Голубинская ◽  
А.В. Кубышкин ◽  
Е.Ю. Бессалова ◽  
...  
Keyword(s):  
Early Onset ◽  
White Male ◽  
Local Treatment ◽  
Public Health Problem ◽  
Microbial Transglutaminase ◽  
Tissue Cell ◽  
Full Thickness ◽  
Regenerative Processes ◽  
Study Objective ◽  
Aesthetic Medicine

Актуальность. Глубокие резаные раны являются одной из наиболее распространенных травм при авариях и, по-прежнему, остаются глобальной проблемой общественного здравоохранения. Несмотря на многочисленные успехи в терапии ран, все еще существует необходимость поиска и разработки новых препаратов для их местного лечения. Цель - определить возможности применения местной терапии трансглютаминазой микробного происхождения (МТГ) с вспомогательной экспериментальной субстанцией авторской фитомази при моделировании полнослойных резаных ран на основании изучения особенностей морфогенеза регенераторных процессов кожи. Методы. В эксперименте на 150 белых мышах самцах исследована динамика регенераторных процессов кожи в группах: без лечения; при использовании препарата Солкосерил и авторской фитомази; а также ее комбинации с ферментом МТГ в различных концентрациях. Применяли комплекс морфологических методов, направленных на изучение структуры кожи на органном, тканевом, клеточном и субклеточном уровнях организации: макроскопический метод - для описания и измерения размеров повреждений; гистологические методы на светооптическом уровне - для качественной оценки морфологических преобразований кожи; метод трансмиссионной электронной микроскопии - для выявления ультраструктурных преобразований различных клеток эпидермиса и дермы. Результаты. Наиболее эффективным препаратом для заживления полнослойных резаных ран по итогам визуальной оценки и гистологического исследования является комбинация фитомази с МТГ в концентрации 0,1%, что подтверждается остановкой кровотечения и образованием фибринового сгустка в 3 раза быстрее, чем в других экспериментальных и контрольной группах; ранним началом эпителизации (на 3 сутки эксперимента), окончательным завершением регенераторных процессов к 10 суткам, что свидетельствует о перспективах использования трансглютаминаз в хирургии и эстетической медицине. Заключение. Применение инновационной методики местной терапии глубоких резаных ран кожи ферментом микробной трансглютаминазой с вспомогательной экспериментальной субстанцией авторской фитомази характеризуется ранним началом эпителизации, что свидетельствует о перспективах использования трансглютаминаз в хирургии и эстетической медицине. В то же время, механизмы репарации должны быть дополнительно исследованы в серии клинических испытаний. Background. Deep cut wounds are one of the most common injuries in accidents and still remain a global public health problem. Despite much success in treatment of wounds searching for and developing new medicines for local treatment are still relevant. The study objective was to test a possibility of local treatment with microbial transglutaminase (MTG) supplemented with an auxiliary experimental substance of the author’s herbal ointment by studying morphogenesis of skin regenerative processes on a model of full-thickness cut wounds. Methods. We studied the dynamics of skin regenerative processes using the following groups: no treatment; a standard treatment with the medicine Solcoseryl in combination with the author’s ointment; the ointment alone; and the ointment in combinations with the enzyme MTG at different concentrations. A set of morphological methods was used for studying the skin structure at organ, tissue, cell, and subcellular levels in experiments on 150 white male mice. The methods included macroscopic description and measurement of skin lesions; histological methods at the light-optical level for qualitative evaluation of skin morphologic changes; and transmission electron microscopy for identifying ultrastructural transformations of different epidermal and dermal cells. Results. Visual evaluation and histological study showed that he most effective treatment for healing of full-thickness cut wounds was 0.1% MTG as evidenced by arrest of bleeding and formation of a fibrin clot, which occurred three times faster than in other experimental and control groups; an early onset of epithelialization on day 3 of the experiment; and the completion of regenerative processes by day 10, which suggested prospective benefits of using transglutaminases in surgery and aesthetic medicine. Conclusions. The innovative local treatment of deep cut wounds of the skin with microbial transglutaminase supplemented with an auxiliary experimental substance of the author’s herbal ointment is characterized by an early onset of epithelization, which suggested prospective benefits of using transglutaminases in surgery and aesthetic medicine. At the same time, mechanisms of reparation need further investigation in clinical trials.

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