Violeta T Pardío-Sedas's research while affiliated with Universidad Veracruzana and other places

Publications (21)

Article
The black-handed spider monkey (Ateles geoffroyi) is a platyrrhine primate distributed in southern Mexico, Central America, and part of South America. Two subspecies inhabit Mexico: Ateles geoffroyi vellerosus and Ateles geoffroyi yucatanensis, both threatened with extinction. Serological evidence of exposure of spider monkeys to various groups of...
Article
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Expression of the regulatory stress rpoS gene controls the transcription of cspA genes, which are involved in survival and adaptation to low temperatures. The purpose of this study was to assess the growth kinetics of naturally occurring V. parahaemolyticus in shellstock oysters and in vitro and the cold-shock-induced expression of the rpoS and csp...
Article
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Objective: This study aimed to determine the effects of stress during slaughter of beef cattle on physiological parameters, carcass, and meat quality at a Federal Inspection Type slaughterhouse located in the southeast of Mexico. Methods: A total of 448 carcasses of male Zebu × European steers with an average age of 36 months were included. Carc...
Chapter
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Brucellosis is one of the most important zoonosis in mexico since it is related to contaminated unpasteurized fresh cheese and milk consumption. The objective of this study was to determine the risk factors for brucellosis associated to unpasteurized fresh cheese consumption. A survey was conducted among 110 consumers in the municipalities of Coate...
Article
Leptospirosis is a zoonosis caused by bacteria of the genus Leptospira that affects several species of wild and domestic vertebrates. The dog is the host of the bacteria and its relationship with humans favors the transmission of the agent; however, there are few studies about Leptospira epidemiology. By previous reports and characteristics of cert...
Article
Full-text available
Leptospirosis is a zoonosis caused by bacteria of the genus Leptospira that affects several species of wild and domestic vertebrates. The dog is the host of the bacteria and its relationship with humans favors the transmission of the agent; however, there are few studies about Leptospira epidemiology. By previous reports and characteristics of cert...
Article
Full-text available
Brucellosis is a zoonosis whose main source of infection is contaminated milk and unpasteurized products. The of isolating the agent limits the definitive diagnosis, so the joint use of methods such as the polymerase cadena de la polimerasa (PCR) and the inoculation of susceptible animals may represent an alternative to isolate and identify Brucell...
Chapter
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MOLECULAR IDENTIFICATION OF Brucella spp. IN FRESH COW CHEESE SAMPLES IN VERACRUZ, MEXICO Brucellosis is one of the most important zoonosis in Mexico, due to the serious public health problem caused by the consumption of unpasteurized dairy products, and the economic losses impact on the national herd. The objective of this study was to determine...
Chapter
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SEROPREVALENCE AND RISK FACTORS FOR LEPTOSPIROSIS IN DOGS AND THEIR OWNERS IN VERACRUZ-BOCA DEL RÍO, MEXICO Leptospirosis is a zoonosis of cosmopolitan distribution caused by bacteria of the genus Leptospira that affects a wide variety of hosts, including man and dog. The latter is important because of its close relationship with man and its abili...
Chapter
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Brucellosis is a zoonosis of worldwide distribution that is highly contagious and poorly attended in developing countries. There is information about different Brucella species that infect a wide variety of domestic and wild animal species, including interspecies. The prevention of brucellosis in animals is essential for the eradication of the dise...
Chapter
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Vaccination against brucellosis allows to protect livestock and reduce the risk of contagion to humans. The vaccines authorized to protect susceptible females are Rev - 1 and RB51. RB51 is safe and does not generate diagnostic confusion in small ruminants, because it lacks O type lipopolysaccharide side chains. Currently, new vaccine strains have b...
Chapter
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Epidemiology of caprine toxoplasmosis in Veracruz, Mexico. Toxoplasmosis is a zoonosis distributed around the world. Cats and other cats are the ultimate hosts; however, several mammals and birds may act as intermediary hosts. Thus, the objective was to estimate the prevalence, risk factors and spatial distribution in the central area of caprine to...
Conference Paper
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Se evaluó la eficacia individual en campo de los productos APILIFE VAR® de manufactura italiana a base de timol, mentol, eucalipto y alcanfor en soportes de vermiculita y HIVE CLEAN® de manufactura austriaca a base de sacarosa, ácido oxálico, ácido cítrico, ácido fórmico y propóleos. Se utilizaron 18 colmenas tipo jumbo pobladas con híbridos africa...
Article
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To quantify Vibrio parahaemolyticus densities in American oyster (Crassostrea virginica) under cold storage. 320 oysters were stored at 7°C for nine days and total and pathogenic densities were determined by the NMP-PCR methodology. V. parahaemolyticus tlh+ densities were observed on 0,3, and 6 days of storage at 1.134, 2.764 and 0.785 log10NMP/g,...
Article
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Objetivo. Cuantificar las densidades de Vibrio parahaemolyticus en ostión americano (Crassostrea virginica) almacenado en refrigeración. Material y métodos. Se almacenaron 320 ostiones a 7 °C durante nueve días y se determinaron las densidades totales y patogénicas mediante la técnica NMP-PCR. Resultados. Se observaron densidades de V. parahaemolyt...
Article
The influence of environmental parameters on the total and pathogenic Vibrio parahaemolyticus seasonal densities in American oysters (Crassostrea virginica) was evaluated for 1year. Harvesting site A yielded the highest mean densities of V. parahaemolyticus tlh+, tdh+/trh-, tdh-/trh+ and tdh+/trh+ during spring season at 2.57, 1.74, 0.36, and -0.40...
Article
Food-borne diseases are among the major public health problems that currently exist. Microbiological risk assessment is a process used to evaluate the hidden hazards in food, the likelihood of exposure to these hazards and their impact on public health. Risk assessment is performed in four steps: hazard identification, hazard characterization, asse...
Article
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Las enfermedades transmitidas por los alimentos son uno de los mayores problemas de salud pública que actualmente existen. La evaluación del riesgo microbiológico es un proceso utilizado para examinar los peligros ocultos en los alimentos, la probabilidad de exposición a éstos y su impacto en la salud pública. La evaluación del riesgo se realiza en...
Article
Full-text available
The histopathologic effect caused by B. abortus on chicken embryos (CE) inoculated with milk from seropositive cows was determined. One hundred 7- to 9-days-old CE were used and divided into three groups: I) 80 CE divided into eight subgroups of 10 CE each, that were inoculated with milk cream from eigth cows seropositive to B. abortus; Group II) 1...

Citations

... At the same time, zoological gardens might offer highly favourable living conditions for ectoparasites such as ticks, flies, mosquitos, lice, and fleas through numerous breeding and resting sites and provision of a high diversity of vertebrate hosts for blood feeding (Dantas-Torres et al., 2012). In Mexico, little is known about the disease agents transmitted by arthropods in zoological gardens, with the single record of Leishmania in spider monkeys (Ateles geoffroyi) from Veracruz (Pérez-Brígido et al., 2022). ...
... These enzyme markers are indicative of muscle damage and low meat quality, due to their adverse effects on meat blooming (colour/appearance), taste, flavour, and other eating qualities [14,63,64]. Abnormal changes in the AMP-activated protein kinase-mediated energy metabolism, crosstalk along calcium signalling pathways in the muscle tissues, formation of reactive oxygen species, myofibril protein modifications and cathepsin proteolytic systems are the key biochemical early post mortem changes responsible for poor meat quality and defects [50,[65][66][67]. These defects may give rise to consumer dissatisfaction and therefore financial losses to the meat producers and the meat industry in general. ...
... México es una zona endémica de brucelosis; por ello, desde 1995 existe la Norma Oficial Mexicana NOM-041-ZOO-1995 Campaña Nacional contra la Brucelosis en los Animales 19 . La institución encargada de su aplicación permanente es el Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA) que forma parte de la Secretaría de Agricultura y Desarrollo Rural (SADER) 20 y cuyo objetivo principal es el establecimiento de zonas libres de brucelosis animal (bovina, caprina y ovina) 19,21 . ...
... In contrast, the density of V. parahaemolyticus nonpathogenic (tlh+) and pathogenic (tdh+, trh+, tdh+/trh+, and tdh+/orf8+) strains increased significantly by day 3 in eastern oysters (C. virginica) stored at 7 • C for 9 days [11]. It has been reported that during cold storage (3 • C), V. parahaemolyticus undergoes physiological stress [12]. ...
... The ecological importance of Vibrio has drawn increasing attention in estuarine and coastal environments worldwide, including the North Carolina coast, the Gulf Coast of Mexico, the Sydney Harbor estuary, and the Northern Chinese marginal seas, etc. (3,(15)(16)(17). In estuarine and coastal waters, the average abundance of Vibrio population is 10 4 to 10 8 16S rRNA gene copies L 21 and generally occupies ;1% of the total bacterioplankton, whereas they can comprise up to 10% of the readily culturable bacteria (up to 10 3 to 10 6 CFU L 21 ) (5,18). ...
... Contrary to deliberate attempts to put protected persons in danger -the food hazards occur also in absence of bad intentions, so certain protective measures have to be taken (Manning and Soon, 2016;Lopez-Hernandez et al., 2014). This is particularly noticeable if we take into account that hazards concerning water, air, soil and food occur on daily basis (Koumolou et al, 2013;Todd et al., 2010;Spalevic, 2011;Chalise et al., 2019). ...
... One hundred chicken embryos (CE) were inoculated with milk from B. abortus-positive cows. At least 10% of inoculated embryos showed damage in liver cells and chorioallantoic membranes, i.e., necrosis and inflammation [30]. Detilleux and colleagues inoculated 125 CE with B. abortus via three different routes: yolk sacs, chorioallantoic membranes, and intravenously [31]. ...