119,308 results match your criteria: "Argentina; Institute of Biochemistry and Biophysics[Affiliation]"

Background: In this article, we discuss a new technique of pectoralis major muscle volumization using ultrasound-guided fat grafting, considering a new surgical criterion that allows for larger volumes.

Methods: We present a retrospective observational descriptive study, which included men who underwent body contouring surgery during 2022-2023. As part of the study, measurements were taken before, immediately after, and at 3 months after surgery.

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Background: As Compassionate Communities (CCs) are developing worldwide, there is a growing need to systematically assess if they are having the expected effects on the community. Although having a single strategy would be ideal in terms of standardization and comparison, due to the inherent heterogeneity of CCs, it is not known how feasible this would be.

Objectives: To assess the feasibility of creating a general strategy, based on the results of a series of focus groups conducted across three diverse CCs, to guide the evaluation of already existing programs and the development of new ones.

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The impact of pre-treatment aneurysm angulation. What happens with WEB devices at follow-up?

Interv Neuroradiol

January 2025

Instituto PLADEMA - CONICET - CNEA, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Argentina.

Background: WEB shape modification has been analyzed in relation to the aneurysm occlusion outcome and techniques have been presented with one-dimensional measurements of the device to quantify the change after implantation. In this work, we present an analysis of pre-treatment vascular morphology and hemodynamics of cases treated with WEB devices, which were three-dimensionally quantified in morphology and position to detect modifications.

Methods: Seventeen WEB-treated aneurysms with pre-treatment, post-treatment and follow-up 3D flat-panel CT were included.

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Balancing the right to health and commercial speech: the approach of Argentina's Supreme Court.

Health Promot Int

January 2025

LLM Georgetown Law, Washington, DC, United States.

Noncommunicable diseases (NCDs) cause significant human and economic costs globally. Each year, 17 million people die from an NCD before age 70. The burden of NCDs is associated with socioenvironmental, cultural factors and social behavior, including modifiable risk factors like tobacco use, unhealthy diets, physical inactivity and alcohol consumption.

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Aim: To describe the self-reported mental health of nurses from 35 countries who worked during the COVID-19 pandemic.

Background: There is little occupationally specific data about nurses' mental health worldwide. Studies have documented the impact on nurses' mental health of the COVID-19 pandemic, but few have baseline referents.

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Female-biased nectar production is associated with the Darwin's inflorescence syndrome.

Plant Biol (Stuttg)

January 2025

Grupo de Investigación en Ecología de la Polinización, Laboratorio Ecotono, INIBIOMA (CONICET-Universidad Nacional del Comahue), San Carlos de Bariloche, Río Negro, Argentina.

Plant reproduction is influenced not only by individual flower characteristics but also by the arrangement of flowers within inflorescences. In bee-pollinated plants with protandrous flowers in vertical acropetal inflorescences - where male fertile flower structures mature before female ones and basal flowers open first (i.e.

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Background: Surgery remains the cornerstone of treatment for rhabdomyosarcoma (RMS) in children. However, there is considerable variation in surgical management practices worldwide, highlighting the need for standardized Clinical Practice Guidelines (CPG).

Methods: The CPG development involved assembling a multidisciplinary group, prioritizing 10 key topic areas, conducting evidence searches, and synthesizing findings.

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Comparison of MIC Test Strip and reference broth microdilution method for amphotericin B and azoles susceptibility testing on wild type and non-wild type Aspergillus species.

Med Mycol

January 2025

Laboratorio de Investigación y Desarrollo en Micología, Instituto de Investigaciones en Microbiología y Parasitología Médica, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina.

This study was performed to evaluate whether the MIC Test Strip (MTS) quantitative assay for determining the minimum inhibitory concentration (MIC) correlated with the CLSI reference broth microdilution method (BMD) for antifungal susceptibility testing of wild-type and non-wild-type Aspergillus species isolated from cystic fibrosis patients against antifungal agents known to be usually effective against Aspergillus spp. This study was performed to assist in the decision-making process for possible deployment of the MTS assay for antimicrobial susceptibility testing of Aspergillus species into regional public health laboratories of Mycology due to difficulties in equipping the reference BMD methods in a laboratory routine. For this purpose, a set of 40 phenotypically diverse isolates (27 wild-type, 9 non-wild-type, and 4 species with reduced susceptibility to azoles and amphotericin B (AMB)) collected from clinical samples were tested.

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The specific pathogeneses of schizophrenia (SCZ) remain an enigma despite extensive research that has implicated both genetic and environmental factors. Recent revelations that dysregulated immune system caused by glial cell overactivation result in neuroinflammation, a key player in neurodegenerative as well as neuropsychiatric disorders including SCZ are providing novel clues on potential therapeutic interventions. Here, we review the roles of glial cells (Dr.

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Mineral, Vitamin and Phytonutrients Content in Different Andean Potato Varieties Reintroduced in the North West Region, Argentina (NOA).

Plant Foods Hum Nutr

January 2025

Centro Interdisciplinario de Investigaciones en Tecnologías y Desarrollo Social para el NOA (CIITED), Facultad de Ingeniería, Universidad Nacional de Jujuy and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Jujuy, Argentina.

The mineral content, vitamin C, and chlorogenic acid were determined in 44 genotypes of Andean potatoes reintroduced in the Quebrada de Humahuaca, Jujuy, Argentina. This initiative aims to promote biodiversity and support local producers by determining the nutritional and functional properties of these genotypes. The genotypes from a collection in the Germplasm Bank of INTA Balcarce, were planted in sandy clay loam soils and harvested manually.

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Narrative review of long-standing groin pain in athletes. Retrospective analysis of over 12 000 patients.

Hernia

January 2025

Centro de Patología Herniaria Argentina, Cerviño 4449, 1425, Buenos Aires, Argentina.

Purpose: This article critically examines long-standing groin pain (LSGP) in physically active adults related to sports overload by analyzing terminology, pathophysiology, and treatment.

Method: This review is based on data from over 10,000 patients managed through a multidisciplinary algorithm. (LSGP) has been variably labeled, using terms that have led to inconsistencies in understanding its origin and management.

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Safety and immunogenicity of Ad26.COV2.S in adolescents: Phase 2 randomized clinical trial.

Hum Vaccin Immunother

December 2025

Crucell Integration, Janssen Research and Development, Beerse, Belgium.

We conducted a randomized, Phase 2 trial to assess the safety and humoral immunogenicity of reduced doses/dose volume of the standard dose of Ad26.COV2.S COVID-19 vaccine (5 × 10 viral particles [vp]) in healthy adolescents aged 12-17 years.

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Gamma oscillations are disrupted in various neurological disorders, including Alzheimer's disease (AD). In AD mouse models, non-invasive audiovisual stimulation (AuViS) at 40 Hz enhances gamma oscillations, clears amyloid-beta, and improves cognition. We investigated mechanisms of circuit remodeling underlying these restorative effects by leveraging the sensitivity of hippocampal neurogenesis to activity in middle-aged wild-type mice.

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Genomic analysis reveals hidden species diversity in Fabricius (Lepidoptera: Riodinidae).

Insecta mundi

November 2024

Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390-9050 USA.

Genomic analysis of [Fabricius], 1807 (Lepidoptera: Riodinidae Grote, 1895) reveals species richness higher than anticipated. As a result, one subgenus, 22 species, and one subspecies are proposed as new (type species or type localities in parenthesis): Grishin, ( Prittwitz, 1865), () Grishin, (Peru: Rio Pachitea, Monte Alegre), () Grishin, (Guyana: Cuyuni-Mazaruni), () Grishin, (Brazil: Santa Catarina), () Grishin, (Panama: Darién), () Grishin, (Ecuador: Santo Domingo), () Grishin, (Peru: Cuzco), () Grishin, (Panama: Chiriquí), () Grishin, (Mexico: Tamaulipas), () Grishin, (Mexico: Nuevo León), () Grishin, (Argentina: Salta), () Grishin, (Peru: Piura), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Sonora), () Grishin, (Peru: Madre de Dios), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Chiapas), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Panamá), () Grishin, (Peru: Cuzco), () Grishin, (Brazil: São Paulo), and () Grishin, (Brazil: Paraná). The following five taxa are (not subspecies): () Schaus, 1928, (not () (Linnaeus, 1767)), () Stichel, 1910, (not () Westwood, 1851), () Stichel, 1929, (not () Godman and Salvin, 1886), () R.

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The James Webb Space Telescope has discovered a surprising population of bright galaxies in the very early Universe (≲500 Myr after the Big Bang) that is hard to explain with conventional galaxy-formation models and whose physical properties are not fully understood. Insight into their internal physics is best captured through nebular lines, but at these early epochs, the brightest of these spectral features are redshifted into the mid-infrared and remain elusive. Using the mid-infrared instrument onboard the James Webb Space Telescope, here we present a detection of Hα and doubly ionized oxygen ([O iii] 4959,5007 Å) from the bright, ultra-high-redshift galaxy candidate GHZ2/GLASS-z12.

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Methodological study on coal-based microbial modification of mineral black clay to overcome plant growth challenges on open-pit mine dumps in cold regions.

MethodsX

June 2025

CUMT-UCASAL Joint Research Center for Biomining and Soil Ecological Restoration, State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, China University of Mining and Technology, Xuzhou, Jiangsu province, 221116, PR China.

A critical challenge in ecological restoration of open-pit mine dumps in cold regions with limited topsoil resources is how to rapidly mitigate the plant growth-inhibitory effects of mineral black clay, thereby converting it into arable soil. Leveraging the high degradation capacity of coal seam-associated microorganisms on fossil carbon materials, combined with soil conditioning techniques, this study developed a microbial-based approach for modifying black clay. Seed germination experiments informed both laboratory and field trial designs.

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Spontaneous intoxication by was diagnosed in a flock of 300 sheep in Jujuy province, northwestern Argentina, that grazed an area heavily invaded by this plant. The main clinical signs were intention tremors, ataxia, and progressive loss of condition. Autopsy of 2 affected animals revealed loss of body condition.

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Background: Bed bugs are blood-feeders that rapidly proliferate into large indoor infestations. Their bites can cause allergies, secondary infections and psychological stress, among other problems. Although several tactics for their management have been used, bed bugs continue to spread worldwide wherever humans reside.

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Prokaryotic heme biosynthesis in Gram-positive bacteria follows the coproporphyrin-dependent heme biosynthesis pathway. The last step in this pathway is catalyzed by the enzyme coproheme decarboxylase, which oxidatively transforms two propionate groups into vinyl groups yielding heme b. The catalytic reaction cycle of coproheme decarboxylases exhibits four different states: the apo-form, the substrate (coproheme)-bound form, a transient three-propionate intermediate form (monovinyl, monopropionate deuteroheme; MMD), and the product (heme b)-bound form.

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Distribution of the kisspeptin system and its relation with gonadotropin-releasing hormone in the hypothalamus.

Vitam Horm

January 2025

Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina. Electronic address:

Kisspeptin (KISS1), originally catalogued as metastin because of its capacity as a metastasis suppressor in human melanoma and breast cancer, is now recognized as the major puberty gatekeeper and gonadotropin-releasing hormone (GnRH) neuroendocrine system modulator. It is a member of the family of RFamide-related peptides that also includes the neuropeptide FF group, the gonadotropin-inhibitory hormone, the prolactin-releasing peptide, and the 26RFa peptides. The KISS1 precursor peptide is processed into a family of peptides known as kisspeptins.

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Melatonin, modulation of hypothalamic activity, and reproduction.

Vitam Horm

January 2025

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina; Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina. Electronic address:

Light is the most reliable environmental cue allowing animals to breed successfully when conditions are optimal. In seasonal breeders, photoperiod (length of daylight) information is sensed by the eyes and transmitted to the suprachiasmatic nucleus, the master clock region located in the hypothalamus. This structure has a 24-h firing rhythm involving a cycle of clock protein synthesis and degradation, and provides the timing to synchronize the synthesis and release of melatonin, the chemical signal that transduces the photoperiod information.

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