scholarly journals Efficacy of Immobilized Prolonged Ammonium Antiseptics in Treatment of Purulent Wounds

2017 ◽  
Vol 10 (4) ◽  
pp. 269-276
Author(s):  
B S Sukovatykh ◽  
A Y Grigoryan ◽  
A I Bezhin ◽  
T A Pankrusheva ◽  
Yu Yu Blinkov ◽  
...  

Relevance. Purulent complications occur in 35-45% of patients with surgical diseases, lethality rate from these conditions achieves 25%. The purpose of the study. To investigate the wound process while treating the purulent wounds with immobilized forms of miramistin and benzalkonium chloride in gel of sodium salt of carboxymetylcellulose. Materials and methods. There were analysed results of experimental study of the wound process on 108 male Wistar rats. Experimental animals were divided into 3 groups, each group included 36 rats. In a comparison group ‘Levomekol’ ointment was used for treatment. In the first experimental group treatment was done by the ointment with the following composition: 0,01% solution of miramistin — 100 g, metronidazol –1,0 g, sodium salt of carboxymetylcellulose — 4,0 g, while in the second experimental group ointment composition included benzalkonium chloride 0,02 g, metronidazol — 1,0 g, sodium salt of carboxymetylcellulose — 4,0 g, purified water — up to 100,0 g. The wound process was evaluated by planimetric, microbiological and histological methods of investigation. Results and its discussion. The reduction of wound area in the first experimental group was higher than in a comparison group on the 3rd day of the experiment by 9,7%, on the 5th day — by 7,6%, on the 10th and 15th days — by 10,5%, while in the second experimental group the change was 37,2%, 27,3%, 13,8% and 6,9% respectively. In the first experimental group microbial contamination of the wound was less than in a comparison group by 5,8х106, on the 5th day — by 3,1х105, on the 10th day — by 6,1х104, while in the second experimental group on the 3rd day there were no differences, on the 5th day — by 6,3х105, on the 10th day — 1,1х104. Histological investigations of the wound biopsies on the 10th day of experiment showed that in a comparison group the bottom of the wound was covered by granulation tissue without signs of epithelization, there was full coverage of the wound with a newly formed epithelium in experimental groups. Conclusions. The use of prolonged quaternary ammonium antiseptics in treatment of purulent wounds is pathogenetically justified and efficient.

2020 ◽  
Vol 7 (2) ◽  
pp. 56-63
Author(s):  
A. Yu. Grigoryan ◽  
A. I. Bezhin ◽  
T. A. Pankrusheva ◽  
L. V. Zhilyaeva

Purpose of the study. To study experimental model of purulent wounds efficiency of the combined effects of benzalkonium chloride and metronidazole immobilized on various bases.Materials and methods. The material was in vitro studies and experimental animals (Wistar rats), which was modeled a purulent wound and then divided into 3 groups according to the treatment method with the three studied combinations, each of which contained benzalkonium chloride and metronidazole, the combinations differed in bases, which were polyethylene oxide or sodium salt of carboxymethylcellulose, or polymethylsiloxane polyhydrate. Research methods: in an in vitro experiment, growth retardation zones were determined for the most common pathogens of wound infection using the standard disc method. In an in vivo experiment the healing process was evaluated by Popov's planimetric method, the contamination of the wounds was studied by sowing the biopsy of wounds on nutrient media with subsequent counting of the grown up colonies. The data were processed statistically, the reliability of the differences was assessed by the Kruskal-Wallis test.Results. All test combinations showed high growth retardation areas for all test strains of microorganisms. Objectively, the highest results were observed with a combination of polyethylene oxide (Staphylococcus aureus 30 (29; 30), Bacillus cereus 27 (27; 28), Escherichia coli 20.5 (20; 21), Proteus vulgaris 21.5 (20; 22), Pseudomonas aeruginosa 17 (16; 17), Candida albicans 25.5 (25; 26)). In determining the healing rate, it was noted that the maximum values in the groups when using combinations based on the sodium salt of carboxymethylcellulose and polymethylsiloxane polyhydrate occurred on day 1–3 (29.6 (27.6; 31) and 20.2 (18.8; 24.2) mm2/day, respectively), and in the group using a combination on polyethylene oxide — for 3–5 days (20.6 (17.3; 22.8) mm2/day).Conclusion. Our studies have shown the high antimicrobial activity of all the developed combinations for all the strains of microorganisms studied. It is also possible to recommend combinations on polyethylene oxide and sodium salt of carboxymethylcellulose for further preclinical studies at all times of treatment, and a combination based on polymethylsiloxane polyhydrate only in the first phase of the wound process.


2010 ◽  
Vol 47 (4) ◽  
pp. 388-392 ◽  
Author(s):  
Nadia Juliana Beraldo Goulart Borges Haubert ◽  
Gilberto João Padovan ◽  
Sérgio Zucoloto ◽  
Hélio Vannucchi ◽  
Julio Sergio Marchini

CONTEXT: The western dietary pattern is characterized by a high calorie intake with a high proportion of simple sugars. This diet is associated with comorbidities such as hepatic fat deposition and is possibly related to non-alcoholic fatty liver disease. OBJECTIVE: To evaluate the capacity of a hyperglucidic diet to induce steatosis in adult male Wistar rats. After the administration of a carbohydrate-rich diet, we also evaluated the presence of hepatic and cardiac steatosis and the levels of intrinsic antioxidants in the liver. METHODS: Forty-six eutrophic adult male Wistar rats were used and 10 of them were chosen, at random, to serve as controls, while the remaining ones formed the experimental group. Control animals received the standard ration offered by the animal house and the experimental group received the hyperglucidic diet. The diets were offered for 21 days and, at the end of this period, tissue samples were collected for analysis of indicators of oxidative stress (malondialdehyde, and reduced glutathione) and of vitamin E. The animals were then sacrificed by decapitation and their viscera were removed for analysis of liver and heart fat. RESULTS: The hyperglucidic diet used induced hepatic fat deposition, with lipid vacuoles being detected in 83% of the livers analyzed by histology. No lipid vacuoles were observed in the heart. Malondialdehyde and reduced glutathione levels remained unchanged when the animals were submitted to the hyperglucidic diet, probably because there was no liver development of fibrosis or inflammation. In contrast, the levels of vitamin E (antioxidant) were reduced, as confirmed in the literature for steatotic animals. CONCLUSION: The hyperglucidic diet induced hepatic steatosis. In the heart there was an increase in fat content, although no histological changes were observed. These alterations cannot be explained by the presence of malondialdehyde or reduced glutathione (indicators of oxidation), since the values were similar in the groups studied. However, a significant reduction of vitamin E was observed in the experimental group.


2020 ◽  
Vol 13 (1) ◽  
pp. 41-45
Author(s):  
Dmitry Valerievich Arkhipov ◽  
Alexander Alekseevich Andreev ◽  
Dmitry Andreevich Atyakshin ◽  
Alexander Anatol'evich Glukhov ◽  
Anton Petrovich Ostroushko

Relevance. Traditional treatment of septic wounds of soft tissues often leads to the development of complications, causing more than 30% of deaths after surgery. The oxidative and bacterial components have a key role in the pathogenesis of septic processes. The aim of the study was to develop a method of treatment of septic wounds, based on a combination of jet technologies, oxygenation and sorption therapy, and also to study the effectiveness of its use. Materials and methods. Studies were conducted on 120 white Wistar rats with septic wounds of soft tissue. There were 4 groups: 3 control and 1 experimental. There was no treatment in the 1st control group. Bandages and treatment of the wound with oxygen flow were performed in the 2nd control group. In the 3rd control group, bandages were performed, and the sorbent was applied to the wound surface. In the experimental group, in addition to dressings, jet oxygen-sorption treatment of the wound surface was carried out. The study of the effectiveness of the method was carried out using objective, histological, histochemical, bacteriological and statistical methods. Result. During the jet oxygen-sorption treatment of the wound surface, the disappearance of hyperemia was noted by 23.1%, the end of necrolysis - by 25.7%, the appearance of granulation - by 24.3%, wound epithelization - by 17.0% faster, compared with the data of the 1st control group. Conclusion. Use of the method the jet oxygen-sorption treatment for the treatment of septic wounds of soft tissues reduced the wound area by 1 day by 4.8%, 3 day by 6.7%, to 7-days 19.1% and to 10-day 43.9% compared to the 3rd control group.


Salud Mental ◽  
2019 ◽  
Vol 42 (5) ◽  
pp. 251-256
Author(s):  
Alberto Avila-Luna ◽  
Antonio Bueno-Nava ◽  
José Luis Cortes-Altamirano ◽  
Samuel Reyes-Long ◽  
Cindy Bandala ◽  
...  

Introduction. Systemic administration of pentylenetetrazole (PTZ) causes brain damage (BD), and triggers a series of morphological and neurochemical changes, which in turn bring about behavioral, cognitive, and motor deficits. Serotonin (5-HT), dopamine (DA), and noradrenaline (NA) levels are controlled by various brain structures and these levels are related to motor activity; however, the concentration of these neurotransmitters during the postictal process remains unknown. Objective. We investigated the concentration of 5-HT, NA and DA in the hippocampus, cerebellum, and cortex on motor deficit during the postictal stage. Method. Eighteen male Wistar rats (300 g) assigned to two groups: control (n = 9, saline solution) and experimental (n = 9, PTZ) were used. Myoclonic shakes were counted and motor behavior assessments were recorded during three hours post PTZ injection (90 mg/kg). The cortex, cerebellum, and hippocampus of each rat were dissected to determine the 5-HT, DA, and NA concentration by high performance liquid chromatography. Results. PTZ induced a significant increase in total 5-HT and DA levels in the hippocampus and cortex; in the cerebellum there was a significant increase in the concentration of 5-HT and NA. The presence of myoclonic shakes as well as a marked motor deficit in the experimental group were significantly different in comparison to the control. Discussion and conclusion. 5-HT modifies the concentration of other monoamines directly involved in motor aspects such as NA and DA in the hippocampus, cerebellum, and cortex during the postictal process.


1965 ◽  
Vol 20 (3_suppl) ◽  
pp. 1049-1053 ◽  
Author(s):  
Robert G. Gibby ◽  
Robert G. Gibby ◽  
George B. Kish ◽  
George C. Theologus

The effect of strychnine sulfate upon spontaneous locomotor activity in an open field was determined for 20 naive male Wistar rats. The experimental Ss were injected ip with 1.0 cc/kg of a 01% solution of strychnine sulfate in normal saline and the control Ss received a similar injection of 1.0 cc/kg of normal saline. All Ss were given 2 trials 7 days apart in the open field, with the injections preceding the second trial. The behavioral change from Trial 1 to Trial 2 for the control group was compared with that for the experimental group. Strychnine sulfate significantly reduced spontaneous locomotor activity in rats. A significant correlation was found between scores on the first and second trials of the experimental Ss. It was suggested that the concept of “orienting-exploratory behavior” could account for reduced locomotor activity.


2017 ◽  
Vol 6 (3) ◽  
pp. 47-51
Author(s):  
Boris Evgenyevich Tolkachev ◽  
Evgeny Igorevich Morkovin ◽  
Liliya Petrovna Knyshova ◽  
Anatoly Trofimovich Yakovlev ◽  
Andrey Valeryevich Strygin

The role of intestinal microbiota in progress of many pathological processes is discussed in recent publications. It was shown that the continuous intestinal dysbiosis, including the increased bacterial growth syndrome, affects the digestion and the biotransformation of xenobiotics. Intestinal microbiota provokes metabolic failures leading to severe diseases acting via several mechanisms. Alcohol is found to be a common dysbiotic factor and toxic agent affecting the systems of biotransformation. This study was to estimate the associations between the intestinal microbiota and the biotransformation of ivabradine, CYP3A4 substrate, in rats during the chronic alcohol intake. The study used 30 male Wistar rats divided into two groups - control and experimental, administrated 15% ethanol as a sole water supply during 40 days to model the chronic alcohol intake. The decrease of bifido- and lactobacterium spp. found in experimental group correlated with excretion and metabolic ratio of ivabradine metabolite and ivabradine in urine. These findings demonstrate the participation of intestinal microbiota in the metabolism of ivabradine after oral introduction.


Author(s):  
А.Ю. Жариков ◽  
А.С. Кальницкий ◽  
О.Н. Мазко ◽  
О.Г. Макарова ◽  
И.П. Бобров ◽  
...  

Введение. В последнее время возросла частота регистрации случаев уратно-оксалатного нефролитиаза. Для разработки новых методов фармакологической коррекции и оценки эффективности фармакотерапии необходимо создание адекватной модели заболевания. Цель исследования - моделирование смешанного уратно-оксалатного нефролитиаза на крысах Wistar и изучение биохимической и гистологической картины патологии. Методика. Эксперимент выполнен на 30 самцах крыс Wistar, разделенных на группу сравнения (n=10) и экспериментальную группу (n=20). Животным экспериментальной группы ежедневно на протяжении 7 сут внутрижелудочно через зонд вводили смесь оксониевой и мочевой кислот в дозах 500 и 1000 мг/кг соответственно и предоставляли в качестве питья 1% раствор этиленгликоля. В моче крыс обеих групп измеряли активность лактатдегидрогеназы и γ-глутамилтрансферазы, в гомогенате почек - концентрацию тиобарбитуратреактивных продуктов, общую прооксидантную и антиоксидантную активность, активность глутатионпероксидазы, каталазы, супероксиддисмутазы. Наличие конкрементов в почках и наличие воспалительной реакции оценивали по результатам морфологического исследования. Результаты. В моче крыс экспериментальной группы к 7-м сут эксперимента активность лактатдегидрогеназы возросла более чем в 20 раз относительно исходного уровня, в группе сравнения не происходило статистически значимых изменений активности лактатдегидрогеназы по сравнению с исходным уровнем. Концентрация тиобарбитуратреактивных продуктов и активность каталазы в гомогенате почек крыс экспериментальной группы на 7-е сут исследования были в 1,3 и 1,6 раза соответственно выше аналогичных показателей группы сравнения, а общая прооксидантная и общая антиоксидантная активность, а также активность супероксиддисмутазы в гомогенате почек крыс подопытной группы статистически значимо снизились в 3,1, 1,8 и 3,2 раза соответственно относительно уровня группы сравнения. В группе сравнения почечные конкременты отсутствовали, а в экспериментальной были выявлены в 100% случаев в количестве 20,2±2,35 со средней площадью 540,55±47,7 мкм2 с признаками сопутствующих воспалительных и дистрофических процессов. Заключение. При недельном применении 1% раствора этиленгликоля и смеси оксониевой и мочевой кислот в дозах 500 и 1000 мг/кг соответственно формируется уратно-оксалатный нефролитиаз, характеризующийся повышением активности лактатдегидрогеназы в моче, активацией окислительных процессов и образованием смешанных депозитов с наличием выраженной воспалительной инфильтрации, кистозного расширения почечных канальцев, а также дистрофических изменений канальцевого эпителия. Introduction. At present, the incidence of urate-oxalate nephrolithiasis has increased. For the development of new methods of pharmacological treatment of this disease, it is necessary to create an adequate model that makes it possible to assess the effectiveness of pharmacotherapy. The aim - create a model of mixed urate-oxalate nephrolithiasis in Wistar rats and to study the biochemical and histological picture of the pathology. Methods. Experiments were carried out on 30 male Wistar rats, divided into a comparison group (n = 10) and an experimental group (n = 20). For formation of urate-oxalate nephrolithiasis, the experimental group was injected daily for 7 days intragastrically a mixture of oxonic and uric acids at doses of 500 and 1000 mg/kg, respectively, and these rats were also provided a drinking 1% solution of ethylene glycol. The activities of lactate dehydrogenase and γ-glutamyl transferase were measured in the urine of both groups. In the kidney homogenate, the concentration of thiobarbiturate-reactive products, total pro-oxidant and antioxidant activity, and activities of glutathione peroxidase, catalase, and superoxide dismutase were measured. Severity of lithogenesis, and inflammation was assessed based on the results of morphological studies. Results. In the urine of rats of the experimental group, the activity of lactate dehydrogenase increased more than 20 times relative to the initial level. In the comparison group, there were no significant biochemical changes. The concentration of thiobarbiturate-reactive substances and the activity of catalase in the kidney homogenate experimental group on the 7th day the were 1.3 and 1.6 times higher, respectively, than those of the comparison group. The total pro-oxidant and total antioxidant activity, as well as the activity of superoxide dismutase, decreased significantly by 3.1, 1.8 and 3.2 times, respectively. In the comparison group, renal calculi were absent, but in the experimental group, they were found in 100% of cases in the number of 20.2 ± 2.4 with an average area of 140.55 ± 47.7 μm2, accompanied by inflammatory and degenerative processes. Conclusion. With a weekly application of a 1% solution of ethylene glycol and a mixture of oxonic and uric acids at doses of 500 and 1000 mg/kg, respectively, a pronounced urate-oxalate nephrolithiasis is formed. This was characterized by an increase in the activity of lactate dehydrogenase in the urine, activation of oxidative processes, and the formation of mixed deposits associated with pronounced inflammatory infiltration, cystic dilatation of the renal tubules, as well as dystrophic changes in the tubular epithelium.


2019 ◽  
pp. 62-67
Author(s):  
K. A. Kidun ◽  
A. N. Litvinenko ◽  
T. S. Ugolnik ◽  
N. M. Golubykh ◽  
E. K. Solodova

Objective: to assess the effect of chronic nonspecific stress on changes of the biochemical parameters of the blood serum in male Wistar rats.Material and methods. The experimental study was performed on sexually mature male Wistar rats. The experimental group (n = 71) was exposed to chronic nonspecific stress according to the Ortiz method. The control group of the animals included intact animals (n = 31).Results. The study has revealed changes in the biochemical composition of the blood serum of the rats: increased activity of ALT, LDH, ALP, urea, uric acid, and cholesterol, a decreased level of triglycerides.Conclusion. These changes may indicate the alteration of the level of the intensity of the physiological processes of energy supply in the conditions of chronic stress.


2018 ◽  
Vol 4 (4) ◽  
pp. 89-96 ◽  
Author(s):  
Dmitriy Yarmamedov ◽  
Vyacheslav Lipatov ◽  
Marina Medvedeva ◽  
Ksenia Zaharova

Introduction: The most common pathology among patients with acute eye infection is conjunctivitis – 78%, keratitis accounts for 14%. The most common infectious agent causing acute infection of the eye is Staphylococcus (55%). The opacity of the cornea in the overall structure of the causes of blindness in the world in 2015 accounted for 3.25% of total blindness and 1.14% in the structure of moderate or severe decline in vision. Materials and methods: The object of the study is antibacterial polymer films based on sodium carboxymethylcellulose, levofloxacin and poludan. In the in vivo experiment was modeled on the adult rabbits, an infected corneal injury in three groups. An infected corneal injury was modeled by removing the corneal epithelium and applying a suspension of microorganisms in the amount of 1 million colonies of Staphylococcus aureus ATCC 25923 to the affected area. In the experiment, 3 groups were studied: the control group (“placebo” treatment – instillation of distilled water 4 times a day), the comparison group (treatment with levofloxacin 0.5% in the form of instillations 4 times a day and poludan twice a day), the experimental group (treatment using antibacterial polymer films with immunomodulating effect once a day). The area of the defect on the cornea was evaluated by staining with a 1% solution of sodium fluorescein. The scoring of the clinical course of the post-traumatic infection of the cornea was performed using the semantic differential method after injury and infection, after 1 hour, 1 day, 3 days, 5 days, 7 days. Results and Discussion: In the study of the rates of resorption of the antibacterial membrane, as well as the release of active substances from the polymer, complete dissolution of the sample was detected within 30 hours. Based on the results of the study of the rate of resorption of the volume of the polymer membrane, a decrease in the index over a period of 24 hours in a physiological solution was found to be 4.5-fold. A weak dependence of the adhesion force on the parameters of the microrelief of the polymer membrane was revealed. The fastest rates of complete restoration of the integrity of the epithelium of the cornea were revealed in the experimental group. In the comparison group, the cornea was completely regenerated on the 7th day. Conclusions: Under the conditions of the in vitro experiment, it was found that the antibacterial polymer membrane gradually dissolves, releasing the active components within 24 hours. When assessing the area of the defect of the cornea after an infected traumatic lesion, it was found that the treatment with polymeric antibacterial membranes with immunomodulating effect resulted in the reduction in the duration of treatment to 5 days.


2018 ◽  
Vol 2 (1) ◽  
pp. 285-299
Author(s):  
Meily Nirnasari

This study aimed at determining how the effect of Wi-Fi 4G electromagnetic wave radiation exposure to the volume of testes, epididymis and sperm quality in male Wistar rats (Rattus norvegicus). This research was conducted at Laboratory of Medical Biology of Sriwijaya University with Pretest-Postest Control Group Design. A total of 28 males Wistar rats were divided into 2 groups randomly: control group and treatment group. Treatment group was divided into 3 groups, each group was exposed 8, 16, 24 hours per day, daily radiation for 48 days. After the rats were terminated, the surgery was performed by taking secretions from the cauda epididymis.The data were analyzed by One Way Anova test. After being exposed to radiation of 4G Wi-Fi electromagnetic waves, there was significantly different mean, decreasing testicular volume, epididymis and sperm morphology value (p = 0,000) with alpha value 0.05 (p <α) in comparison with the control group. It was concluded that the exposure of 4G Wi-Fi electromagnetic radiation could decrease the volume of epididymis and sperm morphology on male Wistar rats, especially, on 24 hours exposure. Keywords: epididymis, 4G Wi-Fi, sperm morphology.


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