Ricardo Barbosa Lucena

ORCID: 0000-0002-2968-5766
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About
Contact & Profiles
Research Areas
  • Veterinary Oncology Research
  • Plant Toxicity and Pharmacological Properties
  • Infectious Diseases and Mycology
  • Microbial infections and disease research
  • Congenital Anomalies and Fetal Surgery
  • Bird parasitology and diseases
  • Plant and fungal interactions
  • Botanical Research and Chemistry
  • Parasite Biology and Host Interactions
  • Mycotoxins in Agriculture and Food
  • Salmonella and Campylobacter epidemiology
  • Oral and Maxillofacial Pathology
  • Virus-based gene therapy research
  • Zoonotic diseases and public health
  • Leptospirosis research and findings
  • Sarcoma Diagnosis and Treatment
  • Salivary Gland Tumors Diagnosis and Treatment
  • Helminth infection and control
  • Hedgehog Signaling Pathway Studies
  • Dermatological diseases and infestations
  • Mycobacterium research and diagnosis
  • Phytochemistry Medicinal Plant Applications
  • Vector-Borne Animal Diseases
  • Primate Behavior and Ecology
  • Neurological diseases and metabolism

Universidade Federal da Paraíba
2016-2025

Universidade Federal de Campina Grande
2013-2024

Centro de Tecnologias Estratégicas do Nordeste
2023

Universidade Federal de Santa Maria
2009-2019

Instituto Federal de Educação Ciência e Tecnologia da Paraíba
2018

University of Córdoba
1998-2017

Poisonous Plant Research Laboratory
2013

Agricultural Research Service
2013

Universidade Federal de Minas Gerais
2012

Fusarium species produce a secondary metabolite known as T-2 toxin, which is the primary and most harmful toxin found in type A trichothecenes. widely food grain-based animal feed endangers health of both humans animals. exposure animals occurs primarily through administration; therefore, first organ that targets gut. In this overview, research progress, toxicity mechanism, detoxification were reviewed, future directions proposed. damages intestinal mucosa destroys structure barrier...

10.1021/acs.jafc.3c09416 article EN Journal of Agricultural and Food Chemistry 2024-02-08

As doenças que acometem bovinos na região Sul do Brasil foram analisadas através de um estudo dos protocolos necropsia 6.706 examinados pelo Laboratório Patologia Veterinária da Universidade Federal Santa (LPV-UFSM), Rio Grande Sul, 1964-2008. Desses, 20,9% necropsias realizadas no LPV-UFSM e 79,1% amostras tecidos submetidos por veterinários campo. Dos exames, 62,9% tinham diagnóstico conclusivo. A autólise ou material insuficiente as principais razões para a ocorrência casos com...

10.1590/s0100-736x2010000500010 article PT cc-by Pesquisa Veterinária Brasileira 2010-05-01

The literature regarding causes of animal mortality varies greatly in how it evaluates and describes reasons for euthanasia, showing a clear need tools to identify, standardize, map diseases. This study the application Animal Mortality Information System Database (DATASIMA) monitoring georeferencing mortality. An observational was conducted on dogs cats euthanized at Municipal Center Environmental Zoonotic Surveillance João Pessoa, Paraíba. deaths were reported through DATASIMA, an online...

10.3390/vetsci12010028 article EN cc-by Veterinary Sciences 2025-01-08

The Northeast of Brazil is a leading region for small ruminants. However, these herds are primarily located in the semi-arid and face significant losses due to fetal perinatal mortality, frequently linked consumption teratogenic toxic plants during pregnancy. This study investigated clinical epidemiological aspects related abortions malformations 80 ruminant farms Brazil. Necropsies were also performed on fetuses neonates, along with histopathological, molecular, serological analyses...

10.3390/ani15030356 article EN cc-by Animals 2025-01-26

Sixteen outbreaks of Senna occidentalis (coffee senna) that occurred in cattle the state Rio Grande do Sul, Brazil, were reviewed. The great majority (75%) adult at pasture during autumn and winter months with 50% May, evidencing a striking seasonality. Mortality rates varied from 4.2% to 55.2% died 2 days up weeks after showing clinical signs included dry feces (occasionally diarrhea), muscle weakness, reluctance move, tachypnea, instability hind limbs dragging toes, tremors muscles thighs,...

10.1590/s0100-736x2011000200008 article EN cc-by Pesquisa Veterinária Brasileira 2011-02-01

Renal fibrosis, associated with oxidative stress and nitric oxide (NO) deficiency, contributes to the development of chronic kidney disease renal failure. As major energy source in maintaining physiological functions, tubular epithelial cells decreased fatty acid oxidation play a key role fibrosis development. Inorganic nitrate, found high levels certain vegetables, can increase formation signaling by bioactive nitrogen species, including NO, dampen stress. In this study, we evaluated...

10.1016/j.redox.2022.102266 article EN cc-by Redox Biology 2022-02-17

Casos de intoxicação por alcaloides pirrolizidínicos (APs) em ruminantes e equinos foram investigados retrospectivamente através do acesso aos arquivos dois laboratórios diagnóstico veterinário no Sul Nordeste brasileiro. Os dados obtidos comparados com aqueles retirados da literatura concernentes a surtos dessa toxicose Brasil, onde ela é associada ingestão plantas que contêm APs dos gêneros Senecio, Crotalaria Echium. Formas aguda crônica encontradas. A doença foi observada associação...

10.1590/s0100-736x2010000500013 article PT cc-by Pesquisa Veterinária Brasileira 2010-05-01

O objetivo deste trabalho é descrever os principais aspectos epidemiológicos e clínico-patológicos das doenças do sistema nervoso de ruminantes equinos diagnosticadas no Laboratório Patologia Veterinária (LPV) da Universidade Federal Santa Maria (UFSM) para servir como base veterinários campo ou que trabalham em laboratórios diagnóstico. Esses dados foram buscados trabalhos publicados pela equipe LPV-UFSM retirados dos arquivos laboratório. As bovinos a raiva, encefalopatia hepática...

10.1590/s0100-736x2010001100010 article PT cc-by Pesquisa Veterinária Brasileira 2010-11-01

This study aimed to describe the first report of an outbreak primary photosensitization in dairy goats caused by Froelichia humboldtiana. The disease occurred from March May 2014, a mixed flock 15 Saanen, Alpine, and crossbred lactating goats. entire was affected; however, Saanen cross-bred developed more severe lesions, their milk production decreased as much 75%. Lesions were progressive consisted skin hyperemia, edema, necrosis, especially depigmented areas. An experimental with two...

10.1016/j.toxicon.2016.11.258 article EN publisher-specific-oa Toxicon 2016-11-24

Renal ischemia-reperfusion (IR) injury is a common cause of acute kidney (AKI), which associated with oxidative stress and reduced nitric oxide (NO) bioactivity increased risk developing chronic disease (CKD) cardiovascular (CVD). New strategies that restore redox balance may have therapeutic implications during AKI complications.To investigate the value boosting nitrate-nitrite-NO pathway development IR-induced renal dysfunction.Male C57BL/6 J mice were given sodium nitrate (10 mg/kg, i. p)...

10.1016/j.redox.2020.101836 article EN cc-by-nc-nd Redox Biology 2020-12-18

Dietary nitrate and nitrite have a notoriously bad reputation because of their proposed association with disease, in particular cancer. However, more recent lines research challenged this dogma suggesting that intake these anions also possess beneficial effects after vivo conversion to the vital signaling molecule nitric oxide. Such include improvement cardiovascular, renal metabolic function, which is partly mediated via reduction oxidative stress. A study even indicates low dose dietary...

10.1016/j.redox.2021.102209 article EN cc-by-nc-nd Redox Biology 2021-12-01

Foram revisados casos de defeitos congênitos (DCs) diagnosticados em bovinos no Laboratório Patologia da Universidade Federal Santa Maria 1964-2010. Durante o período estudado, foram examinados materiais provenientes necropsia 7.132 e encontrados 31 bezerros (0,4%) com DCs, os quais classificados 34 tipos alocados nos sistemas orgânicos primariamente afetados. Os DCs ocorriam isoladamente (19 [61,3%]) ou afetavam múltiplos sítios anatômicos (15 [28,7%]) frequência semelhante ambos sexos....

10.1590/s0100-736x2011000400005 article PT cc-by Pesquisa Veterinária Brasileira 2011-04-01

Trinta e um casos de polioencefalomalacia (PEM) diagnosticados 1999-2008 em bovinos do Sul (13 casos) Centro-Oeste (18 brasileiros foram estudados. As taxas morbidade (0,04%-6,66 %), mortalidade %) letalidade (50%-100%) semelhantes ambas as regiões estudadas. Não houve uma associação clara entre os PEM a idade, sexo dos sazonalidade. Os ocorreram principalmente criados forma extensiva pastagem. Na Região doença afetou jovens (um ano idade ou menos), enquanto que mais velhos (3 anos mais)...

10.1590/s0100-736x2009000700002 article PT cc-by Pesquisa Veterinária Brasileira 2009-07-01

As doenças de chinchilas foram estudadas através da avaliação laudos necropsia entre janeiro 1997 e dezembro 2011. Em 202 necropsiadas, 189 (93,5%) tiveram o diagnóstico determinado, 13 (6,5%) inconclusivo, por ausência lesões ou autólise acentuada. Dentre as computadas, 162 eram fêmeas (80%), 37 machos (18%), em quatro (2%) sexo não foi anotado. tinham um dia a 12 anos idade. agrupadas nas seguintes categorias: inflamatórias, causadas intoxicações, agentes físicos, metabólicas,...

10.1590/s0100-736x2012000600010 article PT Pesquisa Veterinária Brasileira 2012-06-01

O presente trabalho foi conduzido com o objetivo de relatar surtos fotossensibilização causados por Froelichia humboldtiana em equídeos no Estado do Rio Grande Norte, Brasil. Foram examinados animais três propriedades rurais, além asininos abandonados nas estradas. Procedeu-se a coleta amostras sangue periférico cinco jumentos e dois equinos para análise das atividades enzimas hepáticas concentrações bilirrubina total, direta indireta. Das áreas pele lesões um equino foram realizadas...

10.1590/s0100-736x2014001200008 article PT cc-by Pesquisa Veterinária Brasileira 2014-12-01

Crotalaria retusa L. (rattleweed), estimated to contain about 4.96% monocrotaline (MCT) in the seed, was associated with a natural poisoning outbreak goats. The experimentally reproduced by administration of C. seeds containing approximately 4.49% MCT. Thus, 1 3 goats given single dose 5 g/kg bodyweight (bw) (248 mg MCT/kg bw) and 2 347 bw showed acute clinical signs were euthanized 10–11 days after dosing. Clinical gross histologic lesions characteristic centrilobular liver necrosis.

10.1177/1040638713495544 article EN Journal of Veterinary Diagnostic Investigation 2013-07-11

This study aimed to review the mechanisms of action, clinical signs, pathology, and toxic compounds plants that cause photosensitivity in ruminants. In addition, we sought clarify diagnostic methods prophylaxis photosensitivity-induced plants. Photosensitizing constitute an important group poisonous Brazil there are at least seventeen species distributed nine genera. Some these have well known compounds; others, substance responsible for disease is unknown. general, can be classified as...

10.5433/1679-0359.2016v37n4p2009 article EN publisher-specific-oa Semina Ciências Agrárias 2016-08-30

ABSTRACT: Analyzing the causes of death in dogs is fundamental for controlling and preventing diseases, thereby promoting greater longevity quality life. However, current literature lacks standardization uniformity diagnostic description, forms, instruments collecting data maintaining dog obituary records. Using from Data Platform Animal Mortality Information System (DATASIMA), which uses Declaration Death International Classification Diseases (ICD-10), classification attended by veterinary...

10.1590/1678-5150-pvb-7453 article EN cc-by Pesquisa Veterinária Brasileira 2024-01-01
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