Technological advances in studying the human microbiome in depth have enabled the identification of microbial signatures associated with health and disease. This confirms the crucial role of microbiota in maintaining homeostasis and the host health status. Nowadays, there are several ways to modulate the microbiota composition to effectively improve host health; therefore, the development of therapeutic treatments based on the gut microbiota is experiencing rapid growth.
View Article and Find Full Text PDFUnlabelled: Latin America presents a high prevalence of Helicobacter pylori(Hp) infection. Between1996-2003, the prevalence in Santiago, Chile, was 70%; recent studies indicate a decreasein this infection. Updating the frequency of Hp is crucial due to its associated health impact.
View Article and Find Full Text PDFPiperazic acid is a cyclic nonproteinogenic amino acid that contains a hydrazine N-N bond formed by a piperazate synthase (KtzT-like). This amino acid, found in bioactive natural products synthesized by non-ribosomal peptide synthetases (NRPSs), confers conformational constraint to peptides, an important feature for their biological activities. Genome mining of strains has been revealed as a strategy to identify biosynthetic gene clusters (BGCs) for potentially active compounds.
View Article and Find Full Text PDFBackground: Small bowel tumors (SBT) are infrequent and represent a small proportion of digestive neoplasms. There is scarce information about SBT in Latin America.
Aim: To describe the epidemiology, clinical characteristics, diagnostic methods, and survival of malignant SBTs.
Phase-type distributions (PHDs), which are defined as the distribution of the lifetime up to the absorption in an absorbent Markov chain, are an appropriate candidate to model the lifetime of any system, since any non-negative probability distribution can be approximated by a PHD with sufficient precision. Despite PHD potential, friendly statistical programs do not have a module implemented in their interfaces to handle PHD. Thus, researchers must consider others statistical software such as R, Matlab or Python that work with the compilation of code chunks and functions.
View Article and Find Full Text PDFBackground: The updated Sydney system biopsy protocol (USSBP) standardizes the sampling of gastric biopsies for the detection of preneoplastic conditions (e.g., gastric intestinal metaplasia [GIM]), but the real-world diagnostic yield is not well-described.
View Article and Find Full Text PDFFor thousands of years, sodium chloride (NaCl) has been used as a preservative and flavor enhancer. In the organism, NaCl plays a role in nerve functions, osmotic pressure, and nutrient absorption. However, high consumption of NaCl could lead to health issues, such as hypertension and heart-related problems.
View Article and Find Full Text PDFGenome mining using standard bioinformatics tools has allowed for the uncovering of hidden biosynthesis gene clusters for specialized metabolites in genomes. In this work, we have used an alternative approach consisting in seeking " Antibiotic Regulatory Proteins" (SARP) encoding genes and analyzing their surrounding DNA region to unearth cryptic gene clusters that cannot be identified using standard bioinformatics tools. This strategy has allowed the unveiling of the new cluster in , which had not been retrieved before using antiSMASH.
View Article and Find Full Text PDFIntroduction: A precise fecal microbiome analysis requires normalized methods for microbiome sampling, transport and manipulation in order to obtain a representative snapshot of the microbial community. GutAlive is the unique stool collection kit that generates an anaerobic atmosphere enabling oxygen sensitive bacteria to survive, maintaining the original microbiome composition and diversity.
Methods: Five stool samples from different donors were collected using two different sampling devices, GutAlive and Zymo DNA/RNA Shield, and processed at four different time points.
The awareness of the last 20 years about embodied cognition is directing multidisciplinary attention to the musical domain and impacting psychological research approaches from the 4E (embodied, embedded, enactive, and extended) cognition. Based on previous research regarding musical teaching and learning conceptions of 30 young guitar apprentices of advanced level in three learning cultures: Western classical, jazz, and flamenco of oral tradition, two participants of flamenco with polarised profiles of learning (reproductive and transformative) were selected as instrumental cases for a prospective design. Discourse and practice of the two flamenco guitarists were analysed in-depth to describe bodily issues and verbal discourse on the learning practice in their natural contexts.
View Article and Find Full Text PDFMicroplastics (MPs) are characterized by their high persistence in marine ecosystems, and due to their small size, they can be easily ingested by very diverse organisms. Although the presence of MPs in wild fish is well documented, there is still limited information on their potential to induce adverse effects. Pelagic fish species, because of their wide distribution, are considered good bioindicators for monitoring environmental pollution of marine ecosystems.
View Article and Find Full Text PDFCurrent evidence and recent publications have led to the recognition that aerosol-borne transmission of COVID-19 is possible in indoor areas such as educational centers. A crucial measure to reduce the risk of infection in high occupancy indoors is ventilation. In this global pandemic context of SARS-CoV-2 virus infection, a study has been carried out with the main objective of analyzing the effects of natural ventilation conditions through windows on indoor air quality and thermal comfort during on-site examinations in higher education centers during the winter season, as this implies situations of unusual occupation and the impossibility in many cases of taking breaks or leaving classrooms, as well as the existence of unfavorable outdoor weather conditions in terms of low temperatures.
View Article and Find Full Text PDFRice husks are a by-product that is generated in large quantities in Spain. However, they are not used efficiently. One of their possible applications is its thermal use in power generation equipment.
View Article and Find Full Text PDFThe improvement of genome sequencing techniques has brought to light the biosynthetic potential of actinomycetes due to the large number of gene clusters they present compared to the number of known compounds. Genome mining is a recent strategy in the search for novel bioactive compounds, which involves the analysis of sequenced genomes to identify uncharacterized natural product biosynthetic gene clusters, many of which are cryptic or silent under laboratory conditions, and to develop experimental approaches to identify their products. Owing to the importance of halogenation in terms of structural diversity, bioavailability, and bioactivity, searching for new halogenated bioactive compounds has become an interesting issue in the field of natural product discovery.
View Article and Find Full Text PDFThis article presents an instrumental study to validate the adaptation of the Evasive Attitudes of Sexual Orientation Scale (EASOS) to Spanish. This instrument has been shown to be useful in detecting the potential lack of awareness about the situation of lesbian, gay, bisexual, and queer (LGBQ) people among psychology professionals and its possible relationship to contemporary homonegative attitudes. The 596 heterosexual psychology students who participated were given an adaptation into Spanish (back translation).
View Article and Find Full Text PDFThe role of children's verbal repetition of parents' utterances on vocabulary growth has been well documented (Masur, 1999). Nevertheless, few studies have analyzed adults' and children's spontaneous verbal repetition around the second birthday distinguishing between the types of repetition. We analyzed longitudinally Spanish-speaking parent-child dyads during spontaneous interaction at 21, 24 and 30 months.
View Article and Find Full Text PDFThis article explores the connections between the construct of sexism and other sociodemographic and attitudinal variables, such as internalized homonegativity and heteronormative resistances, among psychology students. Both unrefined and inferential analyses were used with a representative sample of 841 psychology students from public universities in Madrid. Results showed higher levels of sexism, internalized homonegativity and low resistances to heteronormativity among groups of men, heterosexuals and conservatives.
View Article and Find Full Text PDFThe present study evaluates the correlations between sexism, homonegativity, binegativity, pro-trans attitudes, political affiliation, contact with LGBT individuals and perceived stigma among psychology students. A study was conducted with 655 cis women (471 heterosexuals, 179 bisexuals and lesbians) and 174 cis men (120 heterosexuals, 54 bisexuals and gays). Descriptive, multivariate analysis of variance, bivariate correlations and multiple regression were used.
View Article and Find Full Text PDFThe resistance plasmid pUO-StVR2, derived from virulence plasmid pSLT, is widespread in clinical isolates of serovar Typhimurium recovered in Spain and other European countries. pUO-StVR2 carries several genes encoding a FetMP-Fls system, which could be involved in iron uptake. We therefore analyzed .
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