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Application of a Pulsed Electric Field to Modify the Free Energy of the Active Site of an Azoreductase

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Journal of Applied Mathematics and Physics 2024年第1期12卷 249-255页

作者： Jesus Magyber de Jesus Miranda Pedro Guillermo Reyes-Romero jorge Mulia-rodríguez Daniel Osorio-González Molecular Biophysics Laboratory Faculty of Sciences Autonomous University of State of Mexico Toluca Mexico Advanced Physics Laboratory Faculty of Sciences Autonomous University of State of Mexico Toluca Mexico

The Gibbs free energy is strongly related to the stability and catalytic function of an enzyme through the energetic changes that occur in the chemical reactions the enzyme catalyzes. In this in silico study, a pulsed electric field was applied to an azoreductase, and its effect on the Gibbs free energy of molecular docking with two dyes was measured. We propose that certain stimuli from a pulsed electric field favor the structural stability of the enzyme by promoting an arrangement in the active site, potentially leading to an enhancement of enzymatic activity overall.

关键词： Pulsed Electric Field Molecular Dynamics Docking Azoreductase

Evaluation of vaccine rollout strategies for emerging infectious diseases:A model-based approach including protection attitudes

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Infectious Disease Modelling 2023年第4期8卷 1032-1049页

作者： Mauricio Paton Juan M.Acuna jorge rodríguez Department of Chemical Engineering College of EngineeringKhalifa UniversitySAN Campus PO Box 127788Abu DhabiUnited Arab Emirates Department of Epidemiology and Public Health College of Medicine.Khalifa UniversityPO Box 127788Abu DhabiUnited Arab Emirates

Vaccine allocation strategies become crucial during vaccine shortages,especially in the face of potential outbreaks of new infectious diseases,as witnessed during the COVID-19 *** address this,a specialized compartmental model is created,which simulates an emerging infectious disease similar to *** model divides the population into different age groups and is used to compare various vaccine prioritisation approaches,aiming to minimize the total number of *** model is an improvement upon previous ones as it incorporates essential behavioural factors and is adapted to account for the protective effects of vaccination against both disease infection and *** takes into account human behaviors such as mask-wearing and social distancing by utilizing specific parameters related to self-protection,awareness levels,and the frequency of daily person-to-person interactions within each age ***,a novel method for dynamic vaccine prioritisation was introduced in this *** approach is model-independent and relies on the dynamic R *** is the first time such a method has been developed,offering a decision-making approach that is not tied to any specific *** innovation provides a flexible and adaptable strategy for determining vaccine priorities based on real-time data and the current state of the *** findings reveal crucial insights into vaccine allocation *** the daily rollout rates are fast(0.75%or higher)and children are eligible for vaccination,prioritising groups with high daily person-to-person interactions can lead to substantial reductions in total fatalities(up to approximately 40%lower).On the other hand,if rollout rates are slower and overall vaccination coverage is high,focusing on vaccinating elders emerges as the most effective strategy,resulting in up to approximately 10%fewer ***,the scenario changes significantly when children are not eligible for vaccination

关键词： behaviour slower utilizing

Molecular Characterization of Peruvian Fowl Adenovirus (FAdV) Isolates

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Advances in Microbiology 2014年第10期4卷 595-603页

作者： jorge rodríguez Ysabel Koga Arnaldo Alvarado Robert Tinoco Bioservice SRL Lima Peru

Forty seven clinical samples of Fowl adenovirus (FAdV) associated with Inclusion Body Hepatitis (IBH) from Peruvian broilers received between July 2006 and April 2013 were genotyped using sequencing of L1 Loop of Hexon gene. All 47 clinical samples presented macroscopic and histopathology lesions consistent with IBH, and amplified a specific fragment of Hexon gene by Polymerase Chain Reaction (PCR). A unique nucleotide sequence of 789 base pairs of Hexon gene (position 273 to 1061) was obtained in all 47 clinical samples analyzed. This sequence showed a high level of conservation in amino acid and nucleotide sequence (>99%) with a Fowl Adenovirus C serotype 4 previously identified. Sequence and phylogenetic analysis indicate no genotypic variation in Peruvian isolates. The presence of a unique genotype very closely related with genotype C1 previously reported in Peru and Ecuador (>99%), suggests the presence of FAdV C serotype 4 genotype C1 in clinical cases of IBH from Peruvian broilers.

关键词： Fowl Adenovirus C Molecular Characterization Inclusion Body Hepatitis Peru

Model-based evaluation of the COVID-19 epidemiological impact on international visitors during Expo 2020

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Infectious Disease Modelling 2022年第3期7卷 571-579页

作者： Mauricio Paton Farida Al-Hosani Anderson E.Stanciole Bashir Aden Andrey Timoshkin Amrit Sadani Omar Najim Cybill A.Cherian Juan M.Acuna jorge rodríguez Department of Epidemiology and Public Health College of MedicineKhalifa UniversityPO Box 127788Abu DhabiUnited Arab Emirates Department of Chemical Engineering College of EngineeringKhalifa UniversitySAN CampusPO Box 127788Abu DhabiUnited Arab Emirates Research and Data Intelligence Support Center(RDISC) Khalifa UniversityPO Box 127788Abu DhabiUnited Arab Emirates Abu Dhabi Public Health Center Abu DhabiUnited Arab Emirates Department of Health Abu DhabiUnited Arab Emirates Abu Dhabi Health Services Company e SEHA PO Box 109090Abu DhabiUnited Arab Emirates

The impact of the COVID-19 pandemic on large events has been *** this work,an evaluation of the potential impact of international arrivals due to Expo 2020 in terms of potential COVID-19 infections from October 1st,2021,until the end of April 2022 in the United Arab Emirates is *** simulation results indicate that:(i)the vaccination status of the visitors appears to have a small impact on cases,this is expected as the small numbers of temporary visitors with respect to the total population contribute little to the herd immunity status;and(ii)the number of infected arrivals is the major factor of impact potentially causing a surge in cases countrywide with the subsequent hospitalisations and *** results indicate that the prevention of infected arrivals should take all precedence priority to mitigate the impact of international visitors with their vaccination status being of less relevance.

关键词： International travel COVID-19 infections Infectious diseases

Human Prion Protein Conformational Changes Susceptibility: A Molecular Dynamics Simulation Study

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Open Journal of Biophysics 2014年第4期4卷 169-175页

作者： Laura Alejandra Mandujano-Rosas Daniel Osorio-González Pedro Guillermo Reyes-Romero jorge Mulia-rodríguez Laboratory of Molecular Biophysics Faculty of Sciences Autonomous University of State of Mexico Toluca Mexico Laboratory of Advaced Physics Faculty of Sciences Autonomous University of State of Mexico Toluca Mexico

Prion proteins are related to the development of incurable and invariably fatal neurodegenerative diseases in humans and animals. The pathogenicity involves the conversion of the host-encoded-alpha rich isoform of prion protein, PrPC, into a misfolded beta-strand rich conformer, PrPSc. Although it has already been described that many punctual mutations alter the stability of PrPC, making it more prone to adopt an abnormal misfolded structure, the majority of cases reported among general population are sporadic in wild-type organisms. Thus, in this work we studied the dynamics and stability profiles of wild-type human prion protein by Molecular Dynamics (MD) simulation at different solvent temperatures. This analysis brought out certain residues and segments of the prion protein as critical to conformational changes;these results are consistent with experimental reports showing that protein mutants in those positions are related to the development of disease.

关键词： Prion Protein Misfolding Susceptibility Molecular Dynamics Simulation

Molecular Identification of Shiga-Toxin Producing and Enteropathogenic <i>Escherichia coli</i>(STEC and EPEC) in Diarrheic and Healthy Young Alpacas

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Advances in Microbiology 2014年第7期4卷 360-364页

作者： Lorena Mori Rosa Perales jorge rodríguez Carlos Shiva Ysabel Koga Geraldine Choquehuanca Cesar Palacios Bioservice SRL Lima Peru Faculty of Veterinary Medicine San Marcos National University Lima Peru Veterinary and Zootechnic Faculty Cayetano Heredia University Lima Peru

Isolation and biochemical and molecular identification of 303 strains of Escherichia coli obtained from diarrheic and healthy young alpacas of Puno-Peru, were realized. PCR amplification for 7 virulence factor genes associated with STEC, STEC O157:H7, EPEC: sxt1, sxt2, rfbO157, fliCH7, hlyA, eae y bfp were determined. A total of 39 strains (12.88%) showed amplification for one or more of these genes. Twenty three strains (59%) were classified as STEC and 16 strains (41%) as EPEC. An 88.18% (34/39) of STEC and EPEC strains were obtained from healthy alpacas and only 11.82% (5/39) from diarrheic alpacas considering this specie as potential zoonotic reservoir of STEC and EPEC.

关键词： Shiga Toxin Producing Escherichia coli Enteropathogenic Escherichia coli Diarrhea Young Alpacas

Molecular signaling of 5-HT<sub>1A</sub>and presence of serotonergic cells in the fetal cerebral cortex

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World Journal of Neuroscience 2013年第2期3卷 76-82页

作者： Alfonso B. M. de Oca Gabriel M. Gutiérrez jorge H. rodríguez Laboratorio de Neurontogenia Departamento de Fisiología Biofísica y Neurociencias Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Ciudad de México México Unidad de Investigación Biomolecular Hospital de Cardiología Centro Médico Nacional Siglo XXI Instituto Mexicano del Seguro Social Ciudad de México México

Early appearance of the serotonergic system in the fetal brain and the various effects of serotonin (5-HT) on brain morphogenesis, have given support to a neurotrophic role of serotonin. This function of serotonin is accomplished through a system of serotonin nerve terminals in the target regions that involves various 5-HT receptors. In visual, auditory and somatosensory cortex an early and intense serotonergic innervation is particularly important. The neuronal somata of these terminals are normally located in the mesencephalon and they have not been observed in the maturing cerebral cortex, neither in the adult brain. By using immunolabeling techniques, fluorescence and confocal microscopy, we observe the presence of both, 5-HT terminals and 5-HT cells in mesencephalon (Me, E17) and in the neopallium (Np, E13-E16) cocultures. Cells immunopositive to 5-HT and to tryptophan-5-hydroxilase are also observed in the Np on day 12 of culture. These results concerning the unexpected presence of serotonergic cells in the fetal cerebral cortex are interesting and may be of importance in corticogenesis. As it happens with other elements of the serotonergic system, the presence of these phenotypically serotonergic cells in the early cerebral cortex may be transitory and probably supporting cortex maturation processes. The molecular signaling path of the 5-HT1A receptor has also been identified.

关键词： Serotonergic System Serotonin Receptor 5-HT1A Molecular Signaling Paths

Root Sprouts of Domesticated Phaseolus coccineus L. Overwinter Plants and the Environment at Its Collection Sites

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Open Journal of Ecology 2024年第5期14卷 508-521页

作者： Ma. Luisa Patricia Vargas-Vázquez jorge Alberto Acosta-Gallegos Fabián Islas-Gutiérrez Enrique Buendía-rodríguez Campo Experimental Valle de Mé xico Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Texcoco Mexico Campo Experimental Bají o Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Guanajuato M&#233xico

Buds emerge from the roots of domesticated runner bean plants (Phaseolus coccineus L.) as sprouts and give the crop its persistence. This particularity of the species seems to be associated with the environment where the species was cultivated during long time. Data on regrowth traits were recorded on 70 accessions of domesticated P. coccineus after overwintering at a site in the central highlands of Mexico. The characteristics recorded included fresh weight of vegetative regrowth, root length, root crown diameter, and diameter of the main root. Most accessions that sprout the following spring, after the grain harvest of the previous year, come from temperate and semi-cold sites with cambisol and andosol soils in mixed Quercus pine forest and high mountain fir trees. Those that do not sprout are from sites of semiarid temperate climate, haplic phaeozem soil in shrub grasslands with deciduous broadleaved trees, and semiwarm subhumid climate, eutrophic regosol soil in deciduous broadleaved forest. Two types of roots were differentiated: branched and thickened taproots, also associated with a different climate, and the type of soil of the collection sites.

关键词： P. coccineus Distribution Vegetation-Environment Interactions Drought-Alternative Species Root-Regrowth

Detection of Progesterone Receptor as a Method of Diagnosing Mammary Cancer in Female Dogs

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Open Journal of Veterinary Medicine 2024年第8期14卷 217-227页

作者： José de Jesús Vázquez Pérez Angel Ramses Figueroa Hernandez jorge Peregrina Sandoval Guillermo Nolasco rodríguez Manuel Rosales Cortés Department of Veterinary Medicine University Center of Biological and Agricultural Sciences University of Guadalajara Zapopan Mexico Department of Cellular and Molecular Biology University Center for Biological and Agricultural Sciences University of Guadalajara Zapopan Mexico

Introduction: Canine mammary gland tumor is the most common type of neoplasia in non-ovariectomized bitches. Approximately 50% of tumors are malignant. Neoplasms originating from the mammary gland represent the most common neoplastic disease in canines in Veterinary Medicine. Aim: Relate the expression of the receptor to progesterone (PR) with the tumor stage of canine mammary carcinoma. Material and Methods: Analytical-cross-sectional study, samples of paraffinized tumor tissue obtained from 30 canine patients with breast cancer were used. The expression of PR was performed by immunohistochemical labeling, using murine anti-PR (anti-PR Biocare brand). A descriptive analysis was carried out with the results using the SPSS program. Results: The predominant histological subtype of breast cancer was tubular carcinoma with 12 patients, followed by papillary cystic carcinoma with 6 patients, solid carcinoma 5, carcinosarcoma 4 and comedocarcinoma 3. There was a significant trend between breast cancer subtypes, histological grade G1. Among the histopathological findings, the degree of invasion is related to the presence of tumor cells in adjacent lymph nodes, which is why it is a prognostic indicator. The expression of PR in the tumor tissue samples it was 42.8% positive versus 57.14% negative, of which 75% correspond to G1, 8.3% to G2 and 16.6% to G3. With respect to the relationship of the expression of PR vs type of tumor, it was found that 50% correspond to tubular carcinoma, 33.3% to papillary cystic carcinoma, 8.3% to solid carcinoma and 8.3% to comedocarcinoma. Conclusion: The hormone receptor was negative in more than half of the patients and histological grade is significantly associated with tumor subtypes, this study emphasizes the need to introduce receptor testing into our routine clinical practice to offer the best treatment for breast cancer.

关键词： Cancer Mammary Gland Progesterone Immunohistochemistry Progesterone Membrane Receptor Component 1 (PGRMC 1)