Signs Of Severe Intoxication Research Articles

Clinically significant and colonizing <em>Enterobacteria</em> isolates with extended spectrum beta-lactamase production and their significance in horse breeding

This review article is devoted to the problem of the emergence and spread of antibiotic-resistant enterobacteria producing beta-lactamase in horse breeding. Foal colibacillosis is an acute infectious disease of young animals, manifested by diarrhea, signs of severe intoxication and dehydration of the body, caused by pathogenic Escherichia coli. Foals get sick in the first 3-7 days after birth. Infection occurs alimentary, less often – aerogenic and intrauterine transmission. The source of infection are sick and recovered animals. The duration of the disease is 2-3 days with a mortality rate of up to 90%, which leads to multiple economic losses. Multiresistant Escherichia coli can accumulate in the intestines of healthy animals and be excreted with fecal matter into the environment, which leads to the spread of pathogenic microflora among livestock. In this case, the animals are latent or hidden carriers that do not show clinical signs of the disease. Clinically significant isolates are causative agents of infectious and inflammatory diseases. These microorganisms represent a potential hazard for the development of an infectious process, they exhibit virulent properties that lead to damage to the tissues of the host organism, which significantly limits the possibility of their eradication. Along with clinically significant isolates, there are colonizing isolates that do not cause infection at a specific site. It should be noted that under certain conditions, the colonizing isolate can cause an infectious process. Irrational use of antimicrobials is a key reason for the development of tolerance. Also, the untimely detection of enzyme inactivation of antibiotics by laboratory methods and the spread of resistance genes play an important role. Currently, disks and media with antibacterial drugs are widely used to detect multidrug resistance of microorganisms. Along with these methods, PCR diagnostics and sequencing are used to accurately determine antibiotic resistance genes. Due to the importance and relevance of this topic, many scientists are conducting research to detect and study the multiresistance of enterobacteria such as E. coli, and their spread among animals.

Some aspects of surgical treatment of erysipelas

Objective. To study the incidence and to determine the main trends of treatment of the erysipelas surgical forms.
 Materials and methods. There were retrospectively and prospectively analyzed 114 histories of the patients’ cases, who were treated in stationary in the centre of purulent-septic surgery of the Municipal Hospital No 3 of Zaporizhzhya in 2019 - 2020 yrs.
 Results. Mostly often the affection site was localized on the lower extremities. In bullous and phlegmonous forms of erysipelas the most frequent clinical signs of intoxication were general weakness, hyperthermia, muscular pain. In necrotic form of erysipelas the signs of severe intoxication with nausea, regurgitation and confusion were observed. In complex treatment of erysipelas the main principles are antibioticotherapy and early surgical processing of the pathological process zone. Determination of indices of the procalcitonin content in the blood serum gives possibility to estimate progression and generalization of the process and constitutes a sensitive test for efficacy of the treatment conducted.
 Conclusion. Radical surgical intervention and timely targeted antibioticotherapy constitutes basic elements of successful treatment for surgical forms of erysipelas, and this position must not be revised. Procalcitonin content in the blood serum constitutes a diagnostic marker, permitting to prognosticate the sepsis development timely.

In vivo efficacy of the Reactive Skin Decontamination Lotion (RSDL®) kit against organophosphate and carbamate pesticides

In this study, we assessed the efficacy of the Reactive Skin Decontamination Lotion (RSDL®) Kit against parathion and aldicarb pesticide dermal exposure in a guinea pig model. The pesticides inhibit acetylcholinesterase (AChE) leading to signs and symptoms of hyperactivity of organs due to accumulation of acetylcholine. The RSDL Kit has been shown to physically remove and chemically degrade chemical warfare agents. Degradation occurs from a nucleophilic substitution reaction between an active ingredient in the RSDL lotion, potassium 2,3-butanedione monoximate (KBDO), with susceptible sites in these compounds. In the present study, guinea pigs dermally exposed to parathion and aldicarb were decontaminated with RSDL to mitigate the toxic effects of the pesticides.It is observed that animals exposed to 749 mg/kg of parathion (n = 3) died within 24 h without RSDL decontamination; however, RSDL-treated animals (n = 3) showed only mild signs of neurotoxicity. The RSDL-treated animals had an AChE inhibition of 0–58% while the untreated animals had up to 86% inhibition. Similarly, RSDL has been demostrated to prevent aldicarb neurotoxicity effects. The percent inhibition of AChE activity during the 24 h post challenge of 9 mg aldicarb/kg of animal weight ranged from 25% to 61% with severe signs of intoxication while only up to 5% with mild or no signs of intoxication in the case of RSDL-decontaminated animals. Generally, it has been shown that the toxic effects of the organophosphate and carbamate pesticides can be prevented via decontamination using the RSDL Kit.

Accidental Acute Poisoning of two Children by Paracetamol-Codeine (1000 Mg/60 Mg) Association - A Case Report

Paracetamol is one of the most used drugs in the world. We report here two cases of children poisoning (less than 3 years old) who were accidentally administered an adult form of rectal suppository containing a combination of paracetamol-codeine (1000 mg/60 mg). The first child received a dose of 154 mg /kg of paracetamol and 9 mg/kg of codeine two times daily for 2 days. Clinical signs were vomiting and epigastric abdominal pains. Biochemistry showed an increase of liver enzymes (4 to 40 fold), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and gamma glutamyl transpeptidase (GGT). The second child received the suppositories discontinuously (two times daily) and showed less severe signs of intoxication. The administration of N-acetylcysteine at admission into hospital limited the toxic effects of paracetamol. The toxic effects of codeine, such as central nervous system (CNS) depression were not obvious in both cases.

One collective case of type A foodborne botulism in Corsica

Foodborne botulism is rare in 21st century Western Europe. The purpose of this report is to describe a collective case of type A botulism caused by ingestion of artisanal-produced food (canned green beans and/or salted roast pork). Five of the seven persons who shared the meal presented signs of severe intoxication leading to the fatal respiratory failure in one 18-year-old girl. Three patients required mechanical ventilation for durations ranging from 37 to 78 days and developed severe infectious, respiratory and/or psychiatric complications. In 4 out of the 5 patients, trivalent antitoxin was administered between days 2 and 7 but did not avoid the need for long-term intubation/mechanical ventilation. Treatment with 3,4-diaminopyridine was ineffective in the 26-year-old man who required long-term breathing assistance. This case of collective foodborne botulism illustrates the potential severity of this hazard.

Cell Mediated And Humoral Immune Functions After Methanol Intoxication in Albino Rats

Methanolcell mediated immunityhumoral immunity Toxicity fro me hanol (MeOH), a potentially significant problem due to occupational, accidental, intentional, as well as daily ingestion of small amounts of the agent, only receives considerable attention after severe signs of intoxication have set in or death is imminent. While accidental and intentional exposures usually involve very high doses, the occupational and ingestion forms more often reflect small daily intakes. Still, even at the low levels, little is known about the potential immunotoxic implications (and less so in regard to mechanisms) from these ongoing exposures. This study has been focused on the effect of methanol on cell mediated and humoral immune function in non-immunized and immunized rats. The level of methanol used in this study was one fourth of the LD50 values (2.37 gm/kg b.wt). The cell mediated and humoral immune function tests were carried out in seven different groups of albino rats, namely control, 1 day, 15 days, 30 days and corresponding immunized groups were used. Sheep red blood cells (SRBC 5 × 109 cells/ ml) were used for immunizing the animals that belongs to the immunized groups. Food intake, urine output, animal and organs weight ratio, cellularity of lymphoid organs and foot pad thickness were significantly decreased when compared with respective controls. However, water intake, and leucocytes migration inhibition were significantly increased when compared with respective control groups. Antibody titre was significantly increased in nonimmunized groups and significantly decreased in immunized groups. Therefore, the present study encompasses that repeated exposure of methanol profoundly suppressed the cell mediated and humoral immunity. from 2005 International Meeting of The Institute of Human Virology Baltimore, USA, 29 August – 2 September 2005

In vitro and in vivo study of neutrophil functions after acute methanol intoxication in albino rats

Toxicity from methanol (MeOH), a potentially significant problem due to occupational, accidental, or intentional, as well as daily ingestion of small amounts of the agent, only receives considerable attention after severe signs of intoxication have set in or death is imminent. While accidental and intentional exposures usually involve very high doses, the occupational and ingestion forms more often reflect small daily intakes. Still, even at the low levels, little is known about the potential immunotoxic implications (and less so in regard to mechanisms) from these ongoing exposures. This study has been attempted to focus the effects of acute methanol exposure on blood neutrophil functions in both in vitro and in vivo conditions at 30 and 60 min time intervals. Innate immunity of the host defense relies mostly on neutrophils. The blood MeOH levels were determined upon exposing the experimental animals to ¼ of LD50 MeOH. No significant change in the blood methanol level was observed at 30 and 60 min of methanol exposure. The in vitro results showed a decrease in the neutrophil functions of adherence and phagocytic index without affecting the avidity index, followed by an increased nitroblue tetrazolium (NBT) reduction. The in vivo exposures of MeOH showed a decline in neutrophil adherence. However, the other neutrophil functions were found to be significantly increased, which indicates that in vivo results are different from that of the in vitro studies. The present study concludes that MeOH exposure can reconstitute the innate immune status by altering the neutrophil functions. Moreover, the in vivo effects are much pronounced compared to the in vitro effects, which may be due to the formation of the metabolites under in vivo conditions.

Effect of Methanol Intoxication on Rat Neutrophil Functions

Methanol (MeOH) toxicity, a potential problem from accidental, intentional, as well as occupational and daily ingestion of the agent, receives attention only after severe signs of intoxication have set in or death is imminent. While accidental and intentional exposures involve high doses, the occupational and ingestion forms more often reflect small daily intakes. Still, even at these low levels, little is known about the potential immunotoxic implications from these recurring exposures. As innate immunity confers a first-line of defense against infection, a study was designed to examine the effects of daily exposure to MeOH (at 1/4 LD50 level, for up to 15 or 30 days) on neutrophil (PMN) functions using rats that were (or were not) injected with sheep red blood cells (SRBC) during the course of exposures. Blood samples were analyzed for total (TLC) and differential leucocyte counts (DLC), and isolated neutrophils (PMN) were assessed for changes in function by monitoring phagocytic (PI) and avidity indices (AI), nitroblue tetrazolium (NBT) reduction, and adherence. Body weights were monitored during exposures and weights of major immune system organs (i.e., spleen, thymus, lymph nodes) were assessed at sacrifice. Body and organ weight, TLC, blood PMN levels, PMN PI, and adherence were all significantly decreased in SRBC-untreated rats that received MeOH, although these cells did also display significant increases in AI and NBT reduction. With SRBC-treated rats, though the percentage of PMN in the blood increased with ongoing MeOH exposure, all the other parameters were markedly decreased in comparison to their controls. Thus, this study showed that repeated exposures to MeOH modulates PMN functions, thereby potentially altering the first line of defense in a normal immune response in exposed hosts.

Effect of a toxic in vivo dose of ouabain on guinea-pig heart mitochondria

The effects of toxic doses of ouabain on two parameters of mitochondrial activity, oxidative phosphorylation and calcium uptake were examined. Ouabain was injected intraperitoneally into guinea-pigs until signs of severe intoxication appeared. State 3 oxygen consumption ( Q O2, State 3, in natom oxygen/mg/min) of isolated heart mitochondria was 314 ± 16 and 281 ± 16 (glutamate-malate) for treated and control group, respectively; 225 ± 21 and 207 ± 23 (pyruvate-malate), and 251 ± 12 and 230 ± 13 (succinate), respectively. The rate of calcium uptake was 411 nmol Ca 2+/min/mg for treated and 329.6 nmol Ca 2+/min/mg for control. The rate of calcium release was the same in control and treated groups. The data suggest that increases of respiration and calcium uptake in vitro, if they reflect similar increases in vivo, may contribute to digitalis intoxication by intracellular redistribution of calcium.

The effect of ouabain on potassium content, phosphoprotein metabolism and oxygen consumption of guinea pig cerebral tissue

The effects of toxic doses of ouabain on two parameters of mitochondrial activity, oxidative phosphorylation and calcium uptake were examined. Ouabain was injected intraperitoneally into guinea-pigs until signs of severe intoxication appeared. State 3 oxygen consumption (QO2, State 3, in natom oxygen/mg/min) of isolated heart mitochondria was 314 ± 16 and 281 ± 16 (glutamate-malate) for treated and control group, respectively; 225 ± 21 and 207 ± 23 (pyruvate-malate), and 251 ± 12 and 230 ± 13 (succinate), respectively. The rate of calcium uptake was 411 nmol Ca2+/min/mg for treated and 329.6 nmol Ca2+/min/mg for control. The rate of calcium release was the same in control and treated groups.The data suggest that increases of respiration and calcium uptake in vitro, if they reflect similar increases in vivo, may contribute to digitalis intoxication by intracellular redistribution of calcium.