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Fernanda da Silva Roberto F, Difante GDS, Vinhas Ítavo LC, Brandão Ferreira Ítavo CC, Rodrigues JG, de Gusmão Pereira M, Augusto de Araújo M, Freire Guidolin DG, Rodrigues da Silva H, Ribeiro NL. Hepatogenic photosensitization in lambs supplemented with different levels of extruded urea in Brachiaria spp. pastures in the Brazilian Cerrado: Case report. Toxicon 2024; 242:107692. [PMID: 38513828 DOI: 10.1016/j.toxicon.2024.107692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
The aim was to report cases and risk factors for hepatogenous photosensitization in lambs kept on Brachiaria spp. pastures and supplemented with levels of extruded urea (EU). The herd consisted of 69 Texel crossbred lambs with known parentage (fathers and mothers adapted to the consumption of forage of the genus Brachiaria), randomly divided into 5 groups and distributed in individual paddocks for each group. The animals were supplemented with increasing levels of EU (Amireia® 200S): 0, 6, 12, 18, and 24 g of EU per 100 kg-1 of body weight (BW). The concentration of protodioscin was estimated in the mixed pastures of Brachiaria spp. (cv. Marandu and cv. Basilisk), structural components (leaf, stem, and dead material), samples of each cultivar, and in the months of December (2018), February, and April (2019). The animals were examined daily, and when behavioral changes were identified, they underwent clinical examinations and anamnesis. Weighing was performed every 14 days, followed by necropsy and serum biochemical analysis, including gamma-glutamyltransferase (GGT). The highest concentrations of protodioscin (p < 0.0001) were found in the pastures used by animals supplemented without extruded urea (7.07 ± 0.56), in the Basilisk cultivar (11.35 ± 0.06), in the leaf blade components (2.08 ± 0.05), and thatch (2.20 ± 0.00), and in the month of April (7.34 ± 0.29) (the month with the lowest rainfall), respectively. Fourteen (20.29%) cases of photosensitization were observed in lambs, of which six recovered, and eight died. Serum GGT levels ranged from 42.2 to 225 IU/L; however, in animals that died, values ranged from 209.4 to 225 IU/L. The use of levels 12 g and 18 g per 100 kg-1 of body weight of extruded urea may contribute to the lower occurrence of photosensitization, as the animals selected pastures with lower protodioscin content, presenting a smaller number of cases.
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Affiliation(s)
| | - Gelson Dos Santos Difante
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Luís Carlos Vinhas Ítavo
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | | | - Jéssica Gomes Rodrigues
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Marislayne de Gusmão Pereira
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Marcelo Augusto de Araújo
- Department of Veterinary Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Diego Gomes Freire Guidolin
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Hitalo Rodrigues da Silva
- Department of Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
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Borges DGL, de Almeida Borges F, Vieira MC, Pupin RC, de Araújo MA, de Castro Guizelini C, de Lemos RAA. Poisoning of calves reared with cows treated with abamectin. Toxicon 2021; 203:115-116. [PMID: 34662630 DOI: 10.1016/j.toxicon.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/30/2021] [Accepted: 10/12/2021] [Indexed: 10/20/2022]
Abstract
The aim of the present study was to describe an outbreak of poisoning by abamectin in calves less than four months of age whose mothers were treated with a pour-on product containing this ingredient. The diagnosis was based on the history, clinical signs, absence of macroscopic and histopathological findings (characteristic of this type of poisoning) and the detection of abamectin in tissues of the animals submitted to necropsy. Based on this report, the recommendation is the use with caution of pour-on formulations containing abamectin on cows having given birth less than four months earlier.
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Affiliation(s)
- Dyego Gonçalves Lino Borges
- Laboratório de Doenças Parasitárias, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil.
| | - Fernando de Almeida Borges
- Laboratório de Doenças Parasitárias, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | | | - Rayane Chitolina Pupin
- Laboratório de Anatomia Patológica, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Marcelo Augusto de Araújo
- Hospital Veterinário, Clínica de Grandes Animais, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Carolina de Castro Guizelini
- Programa de Pós-graduação Em Ciências Veterinárias, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Ricardo Antônio Amaral de Lemos
- Laboratório de Anatomia Patológica, Faculdade de Medicina Veterinária e Zootecnia (FAMEZ), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
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Borges DGL, de Araújo MA, Carollo CA, Carollo ARH, Lifschitz A, Conde MH, de Freitas MG, Santos Freire ZD, Tutija JF, Nakatani MTM, Borges FDA. Combination of quercetin and ivermectin: In vitro and in vivo effects against Haemonchus contortus. Acta Trop 2020; 201:105213. [PMID: 31600523 DOI: 10.1016/j.actatropica.2019.105213] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 10/03/2019] [Accepted: 10/05/2019] [Indexed: 01/30/2023]
Abstract
The aim of the present study was to evaluate the in vitro effect of quercetin combined with ivermectin (IVM) on Haemonchus contortus larvae and adults with different resistance profiles and demonstrate the in vivo anthelmintic action of this combination when used in sheep naturally infected. The effect of combination was evaluated based on the analysis of the mean effective concentration (EC50) obtained for larvae using the larval migration inhibition test and for adults using the motility test on females. The tests with larvae and adults were conducted using isolates with different degrees of susceptibility to IVM (sensitive, intermediate and highly resistant). The in vivo effect was evaluated based on the reduction in the egg count (FEC) and reduction in the count of adult helminths recovered after parasitological necropsy. Using the combination of quercetin with IVM, it was observed that in larvae, quercetin did not significantly reduce the EC50 for IVM in the sensitive and highly resistant isolates, but led to a significant reduction in the EC50 for IVM in the intermediate isolate. In adults, quercetin did not significantly reduce the EC50 for IVM in any of the isolates. No significant effect of the combination was found regarding the reduction in FEC or total count of parasites. The results of the in vitro and in vivo tests performed in the present study on quercetin activity underscore the importance of evaluating resistance-reversing agents among different stages of parasite development as well as among isolates with different resistance profiles. The action of quercetin combined with IVM on the motility of H. contortus larvae and adults was influenced by the degree of resistance and development stage of the parasite. The combination was effective only on intermediate resistant larvae. No action of the combination against adults was found. Moreover, this combination, when administered through the intra-abomasal route, was not effective at reducing the FEC and parasite load of naturally infected sheep.
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Alcântara VMO, Moreira MAG, Castro VA, Araújo MAD. Sistemas Adesivos Autocondicionantes: uma Revisão de Literatura. J Health Scie 2018. [DOI: 10.17921/2447-8938.2017v19n5p231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Os adesivos autocondicionantes foram criados a fim de melhorar a performance clínica dos sistemas adesivos convencionais de condicionamento total e conferir técnica simplificada, com diferencial de adição de monômeros ácidos às soluções de primer/ adesivo que permitem condicionamento dos substratos dentais sem a remoção da smear layer. O objetivo desta revisão de literatura é avaliar as propriedades de resistência adesiva e longevidade desses materiais em relação aos sistemas adesivos convencionais. Para a seleção dos artigos foi realizada uma busca online nas bases bibliográficas PubMed e Scopus no período de 2007 a 2017, utilizando os descritores “self-etching adhesives”, “self-etching primers” e “bond strength” em combinação, sendo encontrados 330 artigos. Foram utilizados como critérios de inclusão publicações na língua inglesa de estudos laboratoriais e clínicos de intervenção em humanos. Foram excluídas pesquisas com período de avaliação inferior a 12 meses. Após refinamento da pesquisa, 20 estudos foram considerados válidos para essa revisão. Observou-se que os adesivos autocondicionantes exibem infiltração do adesivo concomitante com a desmineralização do substrato, fator que poderia reduzir o tempo de trabalho, a sensibilidade pós-operatória e reduzir a dificuldade de obtenção da umidade ideal para a qualidade do procedimento adesivo. Entretanto, notou-se que esses materiais apresentam-se muito hidrofílicos, o que reduz propriedades como resistência adesiva a médio e longo prazo, sobretudo, os materiais disponíveis em frasco único.Palavras-chave: Self-Etching. Adhesives.
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Dias BP, Araújo MAD, Deschk M, Trein TA, Pinheiro NC, Perri SHV, Rodrigues CA, Santos PSPD. Effects of a continuous rate infusion of butorphanol in isoflurane-anesthetized horses on cardiorespiratory parameters, recovery quality, gastrointestinal motility and serum cortisol concentrations. Acta Cir Bras 2015; 29:801-6. [PMID: 25517493 DOI: 10.1590/s0102-86502014001900006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/14/2014] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To assess the cardiorespiratory parametes, recovery, gastrointestinal motility and serum cortisol concentrations in horses anesthetized with isoflurane with or without a continuous rate infusion (CRI) of butorphanol for orchiectomy. METHODS Twelve adult, intact, male horses weighing 332 ± 55 kg were included in the study. Xilazine was administered as premedication. Anesthesia was induced with ketamine and midazolam and maintained with isoflurane. Butorphanol (0.025 mg kg-1 bolus) or an equivalent volume of saline (0.9%) was given intravenously followed by a CRI of butorphanol (BG) (13 µg kg-1 hour-1) or saline (CG). Cardiorespiratory variables were recorded before (T0) and every 15 minutes for 75 minutes after the start of infusion. Serum cortisol concentration was measured at T0 and 60 minutes, and 30 minutes and 19 hours after the horse stood up. Recovery from anesthesia was evaluated using a scoring system. Gastrointestinal motility was evaluated before anesthesia and during 24 hours after recovery. RESULTS There were no significant differences between groups in cardiopulmonary variables, or recovery scores or serum cortisol concentrations. A reduction in gastrointestinal motility was recorded for 60 minutes in BG. CONCLUSIONS Continuous rate infusion of butorphanol in horses anesthetized with isoflurane did not adversely affect the cardiopulmonary variables monitored, or recovery scores. A small but statistically significant reduction in gastrointestinal motility occurred in the butorphanol group.
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Affiliation(s)
- Bianca Paludeto Dias
- Faculty of Veterinary Medicine, Sao Paulo State University, Araçatuba, SP, Brazil
| | - Marcelo Augusto de Araújo
- Faculty of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Maurício Deschk
- Faculty of Veterinary Medicine, UNESP, Araçatuba, SP, Brazil
| | | | - Nirmem Carlos Pinheiro
- Department of Clinical, Surgey and Animal Reproduction, Faculty of Veterinary Medicine, UNESP, Araçatuba, SP, Acquisition
| | | | - Celso Antônio Rodrigues
- Department of Surgery and Anesthesiology, Faculty of Veterinary Medicine, UNESP, Botucatu, SP, Brazil
| | - Paulo Sergio Patto dos Santos
- Department of Clinical, Surgery and Animal Reproduction, Faculty of Veterinary Medicine, UNESP, Araçatuba, SP, Brazil
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Albuquerque VBD, Araújo MAD, Ferreira GTNM, Fonseca MW, Arruda AMM, ShiChen L, Oliva VNLDS. Effects of ropivacaine combined with morphine at 0.15 and 0.2 mg kg(-1) in bitches undergoing epidural anesthesia. Acta Cir Bras 2015; 30:222-38. [PMID: 25790012 DOI: 10.1590/s0102-8650201500300000010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/16/2015] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To investigate cardiorespiratory effects and serum concentration of ropivacaine combined with morphine at different doses. METHODS Sixteen healthy adult female dogs weighting 9.8 ± 4.1 kg were included in the study. Twenty minutes after being premedicated with acepromazine and midazolam, the animals were randomly assigned to receive an epidural injection according to each group: RM0.15 = ropivacaine + morphine (0.15 mg kg(-1)) and RM0.2 = ropivacaine + morphine (0.2 mg kg(-1)). Variables recorded consisted of: heart rate and cardiac rhythm, respiratory rate, oxyhemoglobin saturation, inspired oxygen fraction, end-tidal carbon dioxide tension, systolic, mean and diastolic arterial pressures, serum cortisol, plasma ropivacaine and morphine. RESULTS SAP, MAP and DAP were significantly increased at TPR in RM0.15 but returned to normal values at the end of the procedure. Arterial pH was decreased in T30 and TESu in both groups and also returned to acceptable ranges at TR. Both PaO2 and PaCO2 were increased along the duration period of the epidural blockade (T30 and TESu) and returned to acceptable values at TR. Serum cortisol was lower at TB, T30 and TR when compared to TESu. CONCLUSION The procedures were performed safely and minimal changes in cardiovascular and respiratory variables.
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Affiliation(s)
- Verônica Batista de Albuquerque
- Department of Veterinary Medicine, Faculty of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | | | | | | | - Lu ShiChen
- Galeno Reserch Unit, Campinas, SP, Brazil
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Araújo MAD, Beloti CAC, Deschk M, Arruda AMM, Cheng LS, Albuquerque VBD, Santos PSPD. Bispectral index in calves anesthetized with xylazine, midazolam, ketamine, isoflurane and subjected to continuous rate infusion of lidocaine. Acta Cir Bras 2015; 30:67-72. [DOI: 10.1590/s0102-86502015001000009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 12/18/2014] [Indexed: 11/21/2022] Open
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Araújo MAD, Albuquerque VBD, Deschk M, Trein TA, Frazílio FDO, Santos PSPD. Effects of continuous rate infusion of butorphanol in isoflurane-anesthetized calves. Acta Cir Bras 2014; 29:465-71. [PMID: 25054878 DOI: 10.1590/s0102-86502014000700009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/29/2014] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To assess the hemodynamic changes and bispectral index (BIS) following administration of a continuous rate infusion (CRI) of butorphanol in isoflurane-anesthetized calves. METHODS Eight calves weighing 110 ± 12 kg were included in the study. Anesthesia was induced with 5% isoflurane in O2 delivered via face mask and maintained with end-tidal concentration of 1.4%. IPPV was set to a peak inspiratory airway pressure of 15 cmH2O and respiratory rate of six breaths minute-1. Forty minutes after the start of anesthetic maintenance, 0.1 mg kg-1butorphanol was administered intravenously, followed by a CRI of 20 µg kg-1 minute-1. Hemodynamic variables and BIS were recorded before butorphanol administration (T0), and at 10, 20, 40 and 80 minutes following the CRI. Anesthesia was discontinued after the last recording and the calves were allowed to recover. The time to sternal recumbency (SRE) and standing (ST) were evaluated. RESULTS There were no significant differences between the moments in all hemodynamic variables and BIS. The time to SRE and ST was 9 ± 5 and 14 ± 7 minutes, respectively. CONCLUSION The continuous rate infusion did not produce clinically relevant changes in hemodynamic or bispectral index values compared to baseline in mechanically ventilated and unstimulated calves anesthetized at 1.4% isoflurane.
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Affiliation(s)
- Marcelo Augusto de Araújo
- Faculty of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Maurício Deschk
- Faculty of Veterinary Medicine, São Paulo State University, Araçatuba, SP, Brazil
| | | | - Fabrício de Oliveira Frazílio
- Department of Veterinary Medicine, Faculty of Veterinary Medicine and Animal Science, UFMS, Campo Grande, MS, Brazil
| | - Paulo Sergio Patto dos Santos
- Department of Clinical, Surgery and Animal Reproduction, Faculty of Veterinary Medicine, UNESP, Araçatuba, SP, Brazil
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