24 results match your criteria: "National University Toribio Rodríguez de Mendoza[Affiliation]"

Genome Sequencing Reveals the Potential of sp. Strain UNJFSC003 for Hydrocarbon Bioremediation.

Genes (Basel)

January 2025

Departamento de Agronomía, Universidad Nacional José Faustino Sánchez Carrión (UNJFSC), Lima 15136, Peru.

Bioremediation induced by bacteria offers a promising alternative for the contamination of aromatic hydrocarbons due to their metabolic processes suitable for the removal of these pollutants, as many of them are carcinogenic molecules and dangerous to human health. Our research focused on isolating a bacterium from the rhizosphere of the tara tree with the ability to degrade polycyclic aromatic hydrocarbons, using draft genomic sequencing and computational analysis. sp.

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Molecular Testing of Environmental Samples as a Potential Source to Estimate Parasite Infection.

Trop Med Infect Dis

September 2024

Escuela de Medicina, Universidad Internacional del Ecuador UIDE, Quito 170411, Ecuador.

We discuss the potential usefulness of molecular testing of soil, dust, and water samples to detect medically important parasites, and where such testing could be used to supplement stool sampling in humans. A wide variety of parasites including protozoa and helminths, many of which are zoonotic, have an important infection reservoir in the environment. In some cases, this environmental period is essential for further parasite development.

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Article Synopsis
  • Lake Burlan, an artificial lake in northern Peru created by rice field runoff, is essential for local agriculture and recreation, impacting the economy.
  • The study evaluated the lake's water quality using the Water Quality Index of Peru (WQI-PE) across seven sampling sites and two depths, revealing water quality ranging from poor to fair.
  • High concentrations of toxic elements like arsenic and mercury exceeded environmental standards, highlighting the adverse effects of nearby agriculture and recreation on water quality, prompting the need for ongoing monitoring and mitigation strategies.
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First report of basal rot of yellow dragon fruit () caused by in Peru.

Plant Dis

August 2024

Universidad Nacional Toribio Rodriguez de Mendoza de Amazonas, Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva, Calle Universitaria N° 304, Calle Higos Urco N° 342, Chachapoyas, Amazonas, Peru, 0101001;

Cultivation of yellow dragon fruit () in Peru has recently expanded (Verona-Ruiz et al. 2020). In August 2021, approximately 170 of 1,110 dragon fruit cuttings (15.

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A Comprehensive Bibliometric Study in the Context of Chemical Hazards in Coffee.

Toxics

July 2024

Instituto Universitario de Ingeniería de Alimentos Food-UPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.

The research aimed to carefully review the chemical hazards linked to the coffee production chain to analyse the risks and opportunities for consumers and the environment, as well as identify potential knowledge gaps. The Scopus database was consulted from 1949 to April 2024 to conduct a bibliometric analysis. As a result, 680 articles were analysed.

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Anaplasmosis, transmitted biologically and mechanically, is one of the most prevalent diseases responsible for high production costs worldwide. In this research, the prevalence and risk factors of anaplasmosis in Simmental cattle raised in the Peruvian Amazon were evaluated. 266 blood samples were collected from bovines of different categories such as calves male, calves females, heifers <1.

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Generation rate of hospital solid waste from different services: A case study in the province of Bagua, northern Peru.

Heliyon

June 2024

Facultad de Ingeniería y Sistemas y Mecánica Eléctrica, Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Jr. El Comercio N°365, Bagua, Amazonas, Peru.

The objective of this research was to evaluate the unit generation rate of solid hospital waste at the Gustavo Lanatta Lujan Bagua Support Hospital (HAB). The calculations were based on the weights of hospital waste disposed periodically to the biosafety cell located 7 km from the city of Bagua since 2015. Nineteen services were identified and grouped into three areas: hospitalization area, emergency area and gynecology area, studied according to the group classification of Peruvian regulations.

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The thread blight disease (TBD) of cacao ( ) in the department of Amazonas, Peru was recently reported to be caused by (sect. Neosessiles). This same species is known to be the main causal agent of TBD in West Africa.

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Background: To compare the effect of conventional brackets and self-ligating brackets on periodontal health.

Material And Methods: A search of information up to October 2022 was carried out in the following electronic databases: PubMed/MEDLINE, Cochrane Library, Scopus, Web of Science (WoS), EMBASE, SciELO and Google Scholar. We included studies that were randomised clinical trials, dealing with conventional brackets and self-ligating brackets and their effect on periodontal health, with no language restriction and no time limit.

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Knowledge and Attitudes of Parents about Oral Health in the Primary Dentition Stage in a Peruvian High Andean City.

Int J Environ Res Public Health

January 2024

Facultad de Ciencias de la Salud, Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas, Chachapoyas 01001, Peru.

Children's oral health depends on parents' knowledge and attitudes. The primary dentition stage, in particular, plays a crucial role in the comprehensive development of children. Therefore, the objective was to evaluate parents' knowledge and attitudes about oral health in the primary dentition stage in Chachapoyas (Amazonas, NW Peru).

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This study investigated the effect of host genetics on the structure and composition of the cecum microbiota of three breeds of guinea pigs: Andina, Inti, and Peru. Fifteen guinea pigs were distributed into three groups according to their breed: Andina (5), Inti (5), and Peru (5). We discovered that four main phyla were shared between the three breeds: Bacteroidota, Firmicutes, Spirochaetota, and Synergistota.

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Bioremediation Potential of Native sp. Strains as a Sustainable Strategy for Cadmium Accumulation of in Amazonas Region.

Microorganisms

October 2022

Laboratorio de Sanidad Vegetal, Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), National University Toribio Rodriguez de Mendoza de Amazonas (UNTRM), Calle Higos Urco 342, Chachapoyas 01001, Amazonas, Peru.

Cacao plant cadmium accumulation has become a major concern, especially for small Amazonian producers. A sustainable alternative to address its toxicity is the use of cadmium removal bacteria. In this regard, 138 rhizosphere isolates from cacao were examined.

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DNA rare copy number alterations in Reinke's Edema.

Braz J Otorhinolaryngol

March 2023

University Hospital of Southern Denmark, Department of Clinical Genetics, Vejle, Denmark; University of Southern Denmark, Institute of Regional Health Research, Odense, Denmark. Electronic address:

Introduction: Reinke's Edema (RE) is a laryngeal lesion related to excessive tobacco smoking, voice overuse, and laryngopharyngeal reflux. Although the risk of malignancy has been considered low in literature, RE is classified among precancerous lesions.

Objectives: We investigated DNA Copy Number Alterations (CNAs) in specimens of RE and its potential association with malignant progression.

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The present study sought to evaluate the expression of PD-1 and CTLA-4 in blood T lymphocytes during the periparturient period and their relationship with uterine health in dairy cows, as determined by endometrial cytology and serum concentrations of β-hydroxybutyrate (BHB) and non-esterified fatty acids (NEFAs), which are indicators of a negative energy balance. The second objective of this study was to investigate whether the expression of PD-1 and CTLA-4 in T lymphocytes is associated with the serum acute phase-protein haptoglobin concentration during the periparturient period. To address these objectives, 26 clinically healthy dairy cows were used.

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Potential Current and Future Distribution of the Long-Whiskered Owlet () in Amazonas and San Martin, NW Peru.

Animals (Basel)

July 2022

Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza de Amazonas (UNTRM), Chachapoyas 01001, Peru.

The IUCN has listed the long-whiskered owlet () as vulnerable due to the presence of few geographic records, its restricted range, and anthropogenic threats. Its natural history and ecology are largely unknown, and its distribution is widely debated; therefore, there is an urgent need for the real-time conservation of . In this study, 66 geo-referenced records of , 18 environmental variables, and the maximum entropy model (MaxEnt) have been used to predict the current and future (2050 and 2070) potential distribution of in the Amazonas and San Martin regions of northwestern Peru.

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Kinetics Crystallization and Polymorphism of Cocoa Butter throughout the Spontaneous Fermentation Process.

Foods

June 2022

Sección de Ingeniería Industrial, Departamento de Ingeniería, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, San Miguel 15088, Lima 32, Peru.

The spontaneous fermentation process of Criollo cocoa is studied for its importance in the development of chocolate aroma precursors. This research supports the importance of spontaneous fermentation, which was studied through the crystallization behavior and polymorphisms of cocoa butter (CB), the most abundant component of chocolate that is responsible for its quality physical properties. The k-means technique was used with the CB crystallization kinetics parameters to observe the division of the process during the first stage (day 0-3).

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Milk Macrophage Function in Bovine Leukemia Virus-Infected Dairy Cows.

Front Vet Sci

June 2021

Núcleo Aplicado à Produção e Sanidade da Glândula Mamária, Departamento de Medicina Veterinária, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, Brazil.

The implications of bovine leukemia virus (BLV) on innate and adaptive immune responses have been widely investigated; however, the effects of BLV on mammary gland immunity require further investigation. The present study investigated the viability, phagocytic capacity, and intracellular production of reactive oxygen and nitrogen species (RONS) by macrophages in milk samples from dairy cows naturally infected with BLV with or without persistent lymphocytosis (PL). No effect of BLV infection in the overall number of macrophages per milliliter and in the percentage of viable macrophages among overall milk viable cells was found.

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The genetic diversity of Neotropical deer is increasingly jeopardized, owing to declining population size. Thus, the formation of cryobanking of somatic cells is important for the preservation of these species using cloning. The transformation of these cells into viable embryos has been hampered by a lack of endangered species oocytes.

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Prediction parameters of possible outcomes of canine leishmaniasis (CanL) therapy might help with therapeutic decisions and animal health care. Here, we aimed to develop a diagnostic method with predictive value by analyzing two groups of dogs with CanL, those that exhibited a decrease in parasite load upon antiparasitic treatment (group: responders) and those that maintained high parasite load despite the treatment (group: non-responders). The parameters analyzed were parasitic load determined by q-PCR, hemogram, serum biochemistry and immune system-related gene expression signature.

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This study proposed to determine global microRNA (miRNA) expression and miRNA-regulated pathways in Intestinal Neuronal Dysplasia type B (IND-B). Fifty patients (0-15 years old) with IND-B were included in the study. Peripheral blood samples were collected from all 50 patients and from 10 healthy asymptomatic children (controls).

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The Katalalixar National Reserve (KNR) lies in an isolated marine protected area of Magellan Sub-Antarctic channels, which represent an important area for marine biodiversity and macroalgal conservation. The present study is the first report of the species , "huiro negro", in the Magellan Sub-Antarctic channels. This finding has implications for macroalgal biogeography and conservation concerns in the Chilean coast.

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Formation of aromatic compounds precursors during fermentation of Criollo and Forastero cocoa.

Heliyon

January 2019

Section of Industrial Engineering, Department of Engineering, Pontifical Catholic University of Peru, Av. Universitaria 1801, San Miguel, Lima 32, Peru.

There are three main genetic varieties of cocoa ( L) used in chocolate making: Forastero, Trinitario and Criollo, which are distinguished by their aroma, an attribute that determines their quality. Criollo cocoa is of the highest quality and is used in the manufacture of fine chocolates because of its fruity aroma. The aroma of Criollo cocoa is defined by volatile compounds such as pyrazines and aldehydes, which are formed during roasting of the bean, from aroma precursors (reducing sugars and free amino acids) that are generated inside the bean via enzymatic reactions during fermentation; for this reason, fermentation is the most important process in the value chain.

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A major obstacle of widespread commercial application of bovine somatic cell nuclear transfer is the low overall efficiency, that is, healthy calf-late pregnancy per transferred embryo rate. In this study, we report a series of experiments with a limited number of embryos created with handmade cloning (HMC) and transferred without or after open pulled straw vitrification. Embryo reconstruction was performed by using in vitro matured oocytes and adult ear skin fibroblasts.

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The water availability at early phenological stages is critical for crop establishment and sugarcane varieties show differential performance under drought. Herein, we evaluated the relative importance of morphological and physiological plasticity of young sugarcane plants grown under water deficit, testing the hypothesis that high phenotypic plasticity is associated with drought tolerance. IACSP95-5000 is a high yielding genotype and IACSP94-2094 has good performance under water limiting environments.

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