Raquel Cossio-Bayugar

Dr. Raquel Cossio-Bayugar

Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, Jiutepec, Morelos, Mexico
orcid

Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
8 January 2021 in Parasite
Verified
Journal Article
Open access
PDF file
SNSadaf Niaz
Sadaf Niaz
ZRZia Ur Rahman
Zia Ur Rahman
IAIjaz Ali
Ijaz Ali
RCRaquel Cossio-Bayugar
Raquel Cossio-Bayugar
IAItzel Amaro-Estrada
Itzel Amaro-Estrada
Adil KhanAdil Khan
Adil Khan
This study was conducted in four districts (Malakand, Swat, Bajaur and Shangla) of Northern Pakistan to investigate the prevalence, associated risk factors and phylogenetic analyses of Theileria and Anaplasma species in small ruminants. A total of 800 blood samples, 200 from each district, were collected from apparently healthy animals. PCR assays were performed using generic primers for Anaplasma spp. and Theileria spp. as well as species specific primers for A. ovis and T. ovis. Overall infection prevalence was 361/800 (45.1%). Theileria spp. infection prevalence (187/800, 23.3%) was higher than Anaplasma spp. (174/800, 21.7%). Amplified partial 18S rRNA genes were sequenced and enrolled animals were found to be infected by T. ovis (115/800, 14.3%), and at least two more Theileria species (72/800, 9%) were present (T. lestoquardi and T. annulata). All blood samples that were found to be positive for Anaplasma spp. were also positive for A. ovis. Infection prevalence was higher in sheep (227/361, 28.3%) compared to goats (134/361, 16.6%) (p < 0.005). Univariable analysis of risk factors showed that host, age, grazing system and acaricide treatment were significant determinants (p < 0.05) for both Theileria and Anaplasma infections. Multivariable analysis revealed that host, sex, age, tick infestation and grazing system were significant risk factors (p < 0.005) for both pathogens. Phylogenetic analysis revealed variants among the A. ovis and T. annulata samples analysed, indicating that different genotypes are circulating in the field while T. ovis presented the same genotype for the samples analysed.

11 December 2020 in Scientific Reports
Verified
Journal Article
Open access
PDF file
SAShahida Azhar Ali
Shahida Azhar Ali
SNSadaf Niaz
Sadaf Niaz
Liliana Aguilar-MarcelinoLiliana Aguilar-Marcelino
Liliana Aguilar-Marcelino
WAJID AliWAJID Ali
WAJID Ali
MAMajid Ali
Majid Ali
IAItzel Amaro-Estrada
Itzel Amaro-Estrada
Ascariasis is a common public health problem of preschool and primary school children in developing countries like Pakistan. The aim of the present study was to determine the prevalence and pattern of Ascaris lumbericoides (A. lumbricoides) infection among children residing in urban areas of Lahore, to provide information on ascariasis to promote awareness and prevention programs between the participants specially on the months or season of higher prevalence. To investigate the prevalence of Ascaris Lumbricoides in the contaminated faecal samples of children residing in urban areas of Lahore, a study was conducted from November 2010 to October 2012 and we collected 3600 stratified faecal samples from six urban study areas. Overall 32/3600 (0.88%) prevalence of fecal samples was found positive for eggs of Ascaris lumbricoides. Area wise highest presence positivity 1.67% was observed in Allama Iqbal Town followed by 1.17% in Samanabad, 1.00% in Wapda Town, 1.00% in Gulberg, 0.50% in Cantt, and the lowest 0.00% in Valencia Town respectively (p < 0.001) The highest month wise positivity prevalence 3/300 (3.33%) (p < 0.001) was observed in the month of September that gradually declined up to 0/300 (0.00%) in the month of March. The results reveal that urban areas of Lahore are susceptible to Ascaris Lubricoides infection and the highest prevalence were observed autumn on the month of September.

24 October 2018 in PeerJ
Verified
Journal Article
Open access
PDF file
LGLucia Graña-Miraglia
Lucia Graña-Miraglia
CACésar Arreguín-Pérez
César Arreguín-Pérez
GLGamaliel López-Leal
Gamaliel López-Leal
AMAlan Muñoz
Alan Muñoz
APAngeles Pérez-Oseguera
Angeles Pérez-Oseguera
SCSantiago Castillo-Ramírez
Santiago Castillo-Ramírez
Although genome sequencing has become a very promising approach to conduct microbial taxonomy, few labs have the resources to afford this especially when dealing with data sets of hundreds to thousands of isolates. The goal of this study was to identify the most adequate loci for inferring the phylogeny of the species within the genus Staphylococcus; with the idea that those who cannot afford whole genome sequencing can use these loci to carry out species assignation confidently. We retrieved 177 orthologous groups (OGs) by using a genome-based phylogeny and an average nucleotide identity analysis. The top 26 OGs showed topologies similar to the species tree and the concatenation of them yielded a topology almost identical to that of the species tree. Furthermore, a phylogeny of just the top seven OGs could be used for species assignment. We sequenced four staphylococcus isolates to test the 26 OGs and found that these OGs were far superior to commonly used markers for this genus. On the whole, our procedure allowed identification of the most adequate markers for inferring the phylogeny within the genus Staphylococcus. We anticipate that this approach will be employed for the identification of the most suitable markers for other bacterial genera and can be very helpful to sort out poorly classified genera.

1 April 2002 in Veterinary Parasitology
Verified
Journal Article
Closed access
RCRaquel Cossio-Bayugar
Raquel Cossio-Bayugar
RPRoxanne Pillars
Roxanne Pillars
JSJack Schlater
Jack Schlater
PHPatricia J Holman
Patricia J Holman

1 December 2005 in Insect Biochemistry and Molecular Biology
Verified
Journal Article
Closed access
RCRaquel Cossio-Bayugar
Raquel Cossio-Bayugar
EMEstefan Miranda
Estefan Miranda
PHPatricia J. Holman
Patricia J. Holman

31 December 2022 in Genes
Verified
Journal Article
Open access
PDF file
SSSaman Saman
Saman Saman
Chien-Chin ChenChien-Chin Chen
Chien-Chin Chen
NMNosheen Malak
Nosheen Malak
AKAfshan Khan
Afshan Khan
NNNasreen Nasreen
Nasreen Nasreen
RCRaquel Cossio-Bayugar
Raquel Cossio-Bayugar
Rhipicephalus microplus is a major bovine ectoparasite that negatively impacts the cattle industry. The acaricidal activity of Datura innoxia ethanolic plant extract against R. microplus, compared with trichlorfon, was examined using the adult immersion test (AIT), and larval packet test (LPT). In vitro acaricidal activity of the selected plant extract against R. microplus engorged females was evaluated at different concentrations (2.5, 5, 10, 20, and 40 mg/mL), and was the same for AIT and LPT. It was further supported by in silico molecular docking of D. innoxia’s 21 phytochemicals against the R. microplus Glutathione S-transferases (RmGST) protein’s three-dimensional (3D) structure predicted by the trRosetta server. The modeled 3D structure was then evaluated and confirmed with PROCHECK, ERRAT, and Verify3D online servers. To predict the binding mechanisms of these compounds, molecular docking was performed using Auto dock Vina software, and molecular dynamic (MD) simulations were used to investigate the protein atom’s dynamic motion. D. innoxia has a relatively higher inhibitory effect on oviposition (from 9.81% to 45.37%) and total larval mortality (42.33% at 24 h and 93.67% at 48 h) at 40 mg/mL. Moreover, the docking results showed that the chemicals norapoatropine and 7-Hydroxyhyoscyamine have strong interactions with active site residues of the target protein, with a docking score of −7.3 and −7.0 Kcal/mol, respectively. The current work also provided a computational basis for the inhibitors of Glutathione S-transferases that were studied in this research work, and this new knowledge should aid in creating new and effective acaricidal chemicals. Furthermore, this plant extract’s acaricide activity and its effect on oviposition and larval mortality were established in this work for the first time, indicating the possible use of this extract in the management of ticks.