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Silvana Hipatia Santander Parra
University of São Paulo
24Publications
5H-index
59Citations
Publications 24
Newest
Avian bornaviruses (ABVs) are the causative agents of proventricular dilatation disease (PDD), a fatal neurologic disease considered to be a major threat to psittacine bird populations. We performed a reverse transcription PCR survey to detect the presence of canary avian bornavirus (CnBV) in birds of order Passeriformes related to different clinical manifestations, such as sudden death, neurologic signs, apathy, anorexia, excessive beak growth, and PDD. A total of 227 samples from captive and w...
#1Luis Fabian N Nuñez (USP: University of São Paulo)H-Index: 5
#2Silvana Hipatia Santander Parra (USP: University of São Paulo)H-Index: 5
Last.Antonio José Piantino Ferreira (USP: University of São Paulo)H-Index: 16
view all 8 authors...
#1Silvana Hipatia Santander Parra (USP: University of São Paulo)H-Index: 5
#2Luis Fabian N Nuñez (USP: University of São Paulo)H-Index: 5
Last.Antonio José Piantino Ferreira (USP: University of São Paulo)H-Index: 16
view all 5 authors...
1. Infectious laryngotracheitis is a respiratory disease that affects the poultry industry worldwide. It is common in flocks with high-bird density, causing major economic losses.2. In this study, a SYBR® FAST polymerase chain reaction (PCR) double-strand DNA intercalating agent assay was performed for the detection of infectious laryngotracheitis virus (ILTV) in clinical samples in comparison with a conventional nested-PCR, both based on the glycoprotein E encoding gene. This assay amplified 56...
#1David De la Torre (USP: University of São Paulo)H-Index: 2
#2Luis Fabian N Nuñez (USP: University of São Paulo)H-Index: 5
Last.Antonio José Piantino Ferreira (USP: University of São Paulo)H-Index: 16
view all 5 authors...
Avian adenovirus has been reported in many countries and is an infectious agent related with inclusion body hepatitis, hepatitis-hydropericardium syndrome (HHS), and respiratory and enteric conditions in chickens worldwide. The objective of this study was to detect and establish the molecular sequences of the hexon gene from the avian adenovirus strains of group I (FAdV-I) isolated from birds with hepatitis-hydropericardium syndrome (HHS), malabsorption syndrome and runting-stunting syndrome, to...
#1Claudia Carranza (USP: University of São Paulo)H-Index: 3
#2Claudete S. Astolfi-Ferreira (USP: University of São Paulo)H-Index: 7
Last.Antonio José Piantino Ferreira (USP: University of São Paulo)H-Index: 16
view all 9 authors...
1. Infectious bronchitis virus (IBV) variants in Brazil were isolated during 2010-2015 for epidemiological and molecular analysis to characterise the different variants and perform a bioinformatic analysis to compare with sequences of variants collected over the previous 40 years. 2. Of the 453 samples examined, 61.4% were positive for IBV and 75.9% of these were considered to have the BR-I genotype and were detected in birds of all ages distributed in all five Brazilian regions. 3. The ratio of...
Ecuador is one of the most mega diverse countries in the world, covering a large amount of flora and fauna in all its geographical regions. The aim of this study was to determine the presence or absence of blood parasites in wildlife snakes in the ecological reserves Cota 70, Cotacachi - Cayapas and Sumaco - Napo - Galeras, located in the continental Ecuador. A total of 14 individuals were captured: 9 Colubrids ( Dipsa elegans, Atractus dunni, Sibonne bulata, Mastigodryas heathii, Oxyrhopus peto...
Milk is one of the products that can be adulterated in many ways affecting the quality of this and its derivatives. Glucomacropeptide (GMP) is a protein that is found only in the whey from the production of fresh cheese, enzymatically obtained from the coagulation of casein and which is commonly used to adulterate fresh or powdered milk. The aim of this study was to determine the adulteration of milk with cheese whey thought a molecular approach, where the glucomacropeptide was collected by sequ...
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