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1.
Ophthalmology ; 123(8): 1788-1794, 2016 08.
Article in English | MEDLINE | ID: mdl-27236271

ABSTRACT

PURPOSE: To describe the ocular findings of 3 cases of suspected congenital Zika viral infection with microcephaly and maculopathy. DESIGN: Retrospective, consecutive case series. PARTICIPANTS: Three male infants born in northern Brazil whose mothers demonstrated a viral syndrome during the first trimester and who subsequently were born with microcephaly. METHODS: Observational report of macular findings. MAIN OUTCOME MEASURES: Continued observation. RESULTS: Three male infants were born with microcephaly to mothers who had a viral syndrome during the first trimester of gestation in an area that subsequently has demonstrated epidemic Zika infection, a flavivirus related to Dengue. Ocular examination was performed. All 6 eyes demonstrated a pigmentary maculopathy ranging from mild to pronounced. In 4 eyes, well-delineated macular chorioretinal atrophy with a hyperpigmented ring developed. Three eyes demonstrated vascular tortuosity and 2 eyes demonstrated a pronounced early termination of the retinal vasculature on photographic evaluation. Two eyes demonstrated a washed out peripheral retina with a hypolucent spot. One eye had scattered subretinal hemorrhages external to the macula. Finally, 1 eye demonstrated peripheral pigmentary changes and clustered atrophic lesions resembling grouped congenital albinotic spots (polar bear tracks). CONCLUSIONS: Zika virus has been linked to microcephaly in children of mothers with a viral syndrome during the first trimester of pregnancy. Ocular findings previously described a pigmentary retinopathy and atrophy that now can be expanded to include torpedo maculopathy, vascular changes, and hemorrhagic retinopathy. Ophthalmologic screening guidelines need to be defined to determine which children would benefit from newborn screening in affected regions.


Subject(s)
Eye Infections, Viral/diagnosis , Microcephaly/diagnosis , Pregnancy Complications, Infectious/diagnosis , Retinal Diseases/diagnosis , Retinal Vessels/pathology , Zika Virus Infection/diagnosis , Brazil , Corneal Dystrophies, Hereditary/diagnosis , Eye Infections, Viral/virology , Female , Gestational Age , Humans , Infant, Newborn , Male , Microcephaly/virology , Pregnancy , Pregnancy Complications, Infectious/virology , Retinal Diseases/virology , Retinal Hemorrhage/diagnosis , Retrospective Studies , Zika Virus Infection/virology
2.
Hig. aliment ; 26(204/205): 73-77, jan.-fev. 2012.
Article in Portuguese | LILACS | ID: lil-652165

ABSTRACT

Ovos são amplamente utilizados na culinária nacional, principalmente por seu baixo custo e elevado valor nutricional. Entretanto, muitos surtos de doenças veiculadas por alimentos têm como origem os ovos e seus derivados contaminados por micro-organismos patogênicos antes ou após sua postura pelas aves. Tendo em vista a importância dos ovos na alimentação humana o presente trabalho teve por objetivo realizar um estudo sobre os aspectos microbiológicos dos ovos de consumo abordando os principais micro-organismos envolvidos e sua importância para o ser humano. Foi observada uma grande variedade de micro-organismos sendo a Salmonella enteritidis a de maior relevância. Concluindo que apesar das barreiras naturais do ovo a contaminação pode ocorrer; portanto é importante garantir um manejo adequado deste produto a fim de evitar a sua contaminação e possível transmissão de doenças.


Subject(s)
Food Composition , Food Contamination , Food Microbiology , Eggs/microbiology , Bacteria , Salmonella enteritidis/isolation & purification
3.
Pesqui. vet. bras ; 29(8): 632-636, ago. 2009. ilus
Article in Portuguese | LILACS | ID: lil-531766

ABSTRACT

Dentre os sinais sistêmicos causados pelo envenenamento por veneno de sapo (bufotoxina) em cães, os efeitos cardiotóxicos são um dos mais importantes. O objetivo deste estudo foi avaliar as potenciais alterações no músculo cardíaco de cães envenenados experimentalmente por veneno de sapo e observar as alterações eletrolíticas que podem ocorrer nesse tipo de envenenamento. Utilizaram-se 20 cães divididos em grupo controle (n=5) e grupo envenenado (n=15). O veneno de sapo foi extraído por meio de compressão manual das glândulas paratóides. Após anestesia geral, os cães do grupo controle receberam placebo (solução fisiológica) e os do grupo envenenado uma alíquota do veneno por sonda orogástrica. As colheitas de sangue para dosagem dos marcadores cardíacos foram realizadas seis e 24 horas após o envenenamento. As colheitas de sangue para dosagem dos eletrólitos foram realizadas antes e duas, quatro, seis e 12 horas após o envenenamento. A análise estatística empregada foi o teste não-paramétrico de Mann-Withney (P<0,05). Os cães envenenados por veneno de sapo apresentaram elevação dos níveis dos marcadores cardíacos CK-MB e TnIc, confirmando a cardiotoxicidade do veneno. Hipocalemia e hipocalcemia foram também observadas nos cães envenenados.


Among the systemic signs of toad venom (bufotoxin) poisoning in dogs, the cardiotoxic effects are one of the most important. Thus, the objective of this experiment was to evaluate potential changes in the cardiac muscle in dogs poisoned experimentally by toad venom and to observe the eletrolyte alterations which may occur in this condition. Twenty dogs divided into control group (n=5) and poisoned group (n=15) were utilized. The toad venom was extracted by manual compression of the paratoidic glands. After general anesthesia, dogs in the control group received placebo and dogs in the poisoned group received the venom by orogastric catheter. Samples for dosage were collected 6 hours and 24 hours after poisoning and 0, 2, 4, 6 and 12 hours after poisoning for electrolytes dosage. The Man-Withney test was used for statistical analysis (P<0.05). The poisoned dogs showed (saline) elevated levels of cardiac markers CK-MB and TnIc, confirming the cardiotoxic effect of the bufotoxin. Hypokalemia and hypocalcemia were also observed.


Subject(s)
Animals , Myocardium , Biomarkers , Amphibian Venoms/adverse effects , Cardiotoxins/toxicity , Dogs
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