Publications by authors named "MUNOZ A"

Many biological fibrous tissues exhibit distinctive mechanical properties arising from their highly organized fibrous structure. In disease conditions, alterations in the primary components of these fibers, such as type I collagen molecules in bone, tendons, and ligaments, assembly into a disorganized fibers architecture generating a weak and/or brittle material. Being able to quantitatively assess the fibers orientation and organization in biological tissue may help improve our understanding of their contribution to the tissue and organ mechanical integrity, and assess disease progress and therapy effect.

View Article and Find Full Text PDF

Piscine orthoreovirus (PRV) is a virus that is widely distributed among global aquaculture populations of salmonid species. The coho salmon (Oncorhynchus kisutch) is a species of increasing productive and economic importance in Chile. The presence of PRV has generated concern about its impact on the health and welfare of this species.

View Article and Find Full Text PDF

Introduction: Human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) infections are a global public health concern. In 2019, there were 295.9 million people with chronic hepatitis B and 57.

View Article and Find Full Text PDF

A series of hydrophilic copolymers were prepared using 2-hydroxyethyl methacrylate (HEMA) and itaconic acid (IA) from free radical polymerization at different feed monomer ratios using ammonium persulfate (APS) initiators in water at 70 °C. The herbicide 2,4-dichlorophenoxy acetic acid (2,4-D) was grafted to Poly(HEMA--IA) by a condensation reaction. The hydrolysis of the polymeric release system, Poly(HEMA--IA)-2,4-D, demonstrated that the release of the herbicide in an aqueous phase depends on the polymeric system's pH value and hydrophilic character.

View Article and Find Full Text PDF

. Mathematical modeling can offer valuable insights into the behavior of biological systems upon treatment. Different mathematical models (empirical, semi-empirical, and mechanistic) have been designed to predict the efficacy of either hyperthermia (HT), radiotherapy (RT), or their combination.

View Article and Find Full Text PDF

Background: Adipose tissue distribution plays a crucial role in the development of cardiovascular complications. In particular, visceral adipose tissue (VAT) has been linked to insulin resistance (IR) and cardiovascular disease (CVD). However, the relationship between VAT, cardiac dysfunction and the meditation capacity of VAT related to IR has not been fully characterized.

View Article and Find Full Text PDF

Introduction: First responders play a pivotal role in ensuring the wellbeing of individuals during critical situations. The demanding nature of their work exposes them to prolonged shifts and unpredictable situations, leading to elevated fatigue levels. Modern countermeasures to fatigue do not provide the best results.

View Article and Find Full Text PDF

Unlabelled: This assessment was designed to explore and characterize the airborne particles, especially for the sub-micrometer sizes, in an underground coal mine. Airborne particles present in the breathing zone were evaluated by using both (1) direct reading real-time instruments (RTIs) to measure real-time particle number concentrations in the workplaces and (2) gravimetric samplers to collect airborne particles to obtain mass concentrations and conduct further characterizations. Airborne coal mine particles were collected via three samplers: inhalable particle sampler (37 mm cassette with polyvinyl chloride (PVC) filter), respirable dust cyclone (10 mm nylon cyclone with 37 mm Zefon cassette and PVC filter), and a Tsai diffusion sampler (TDS).

View Article and Find Full Text PDF

Background: Congenital early onset scoliosis (C-EOS) often co-occurs with tethered spinal cord syndrome (TSCS), necessitating surgical intervention to address both conditions to prevent worsening neuromuscular function. Detethering can be done concurrently with spinal deformity correction (SDC), before SDC, or not done at all. This study explores perioperative complications in C-EOS patients with and without TSCS who underwent SDC with growing instrumentation or fusion.

View Article and Find Full Text PDF

Neoadjuvant therapy, particularly the combination of chemotherapy and immunotherapy, has become standard in treating locally advanced non-small cell lung cancer (NSCLC). While this approach improves pathologic responses, its effect on postoperative outcomes following robotic-assisted thoracic surgery (RATS) is not fully characterized. This study aimed to evaluate the impact of neoadjuvant therapy on postoperative outcomes in patients undergoing RATS for NSCLC, focusing on operative time, conversion rates to open surgery, and postoperative complications.

View Article and Find Full Text PDF
Article Synopsis
  • Canine distemper virus (CDV) leads to serious health issues in dogs, particularly affecting the central nervous system, but little is known about how certain biomarkers relate to the disease.
  • The study aimed to compare serum biomarkers between 10 dogs infected with CDV and 10 healthy dogs and to analyze correlations between serum and cerebrospinal fluid (CSF) biomarkers.
  • Results showed that certain inflammatory cytokines and antioxidant levels were significantly higher in dogs with CDV, and specific cytokines in CSF were correlated with those in serum, suggesting these could assist in diagnosing neurological involvement in CDV infections.
View Article and Find Full Text PDF

Non-bovine dairy animals, commonly referred to as non-traditional dairy species, include goats, sheep, yaks, buffalo, donkeys, alpacas, llamas, and other less commonly farmed species. These animals have been integral to livestock systems since ancient times, providing milk and other essential products. Despite their historical significance, dairy production from many of these species remains predominantly confined to rural areas in developing countries, where scientific advancements and technical improvements are often limited.

View Article and Find Full Text PDF

The aim of this study was to examine the effects of multiday beetroot juice ingestion on neuromuscular performance in semi-professional, male handball players. Twelve handball players competing in the second Spanish national division received 70 ml of beetroot juice (6.4 mmol of nitrate [NO3-]) or 70 ml of a placebo beetroot juice (0.

View Article and Find Full Text PDF

Objectives: Moyamoya disease (MMD) is a cerebrovascular disorder marked by the progressive steno-occlusion of the bilateral internal carotid arteries and the formation of abnormal collateral vessel networks at the base of the brain. Previous studies have attempted to identify risk factors predictive of postoperative complications to improve patient management. This study aims to identify pretreatment factors associated with post-bypass symptomatic strokes in MMD patients.

View Article and Find Full Text PDF

The immune cellular landscape from the gastric mucosa remains largely unknown despite its relevance in several inflammatory conditions. Human gastric biopsies were obtained from the antrum, body and incisura from 10 individuals to obtain lamina propria mononuclear cells that were further characterized by spectral cytometry. Phenotypic hierarchical analyses identified a total of 52 different immune cell subsets within the human gastric mucosa revealing that T-cells (> 60%) and NK cells (> 20%) were the main populations.

View Article and Find Full Text PDF
Article Synopsis
  • - Calcium ion (Ca) homeostasis is essential for proper neuron function, and this study investigated how the CB receptor (CBR) interacts with the ATR receptor to regulate cytoplasmic Ca levels in CNS neurons.
  • - A specific type of interaction called AT-CB receptor heteromers (ATCBHets) was identified using bioluminescence resonance energy transfer (BRET) in lab cells and in the context of Parkinson's disease (PD).
  • - The study found that activation of ATR reduces Ca levels in the presence of cannabinoids, and in a rat model of PD, lower levels of ATCBHets were linked to lesioned neurons, suggesting that cannabinoids might help mitigate calcium imbalance related to levodopa-induced
View Article and Find Full Text PDF

Introduction: There are studies with mixed conclusions about the role cholecystectomy plays as a risk factor for proximal colorectal cancer (CRC).

Methods: We performed a multicenter retrospective cohort study where the records of patients with CRC were reviewed. Data was collected regarding affected colon subsegment (cecum, ascending, transverse, descending, sigmoid, or rectum, which were also combined into proximal or distal colon), history and time since cholecystectomy, histopathology reports (TNM classification and clinical stage), and KRAS, NRAS, and BRAF mutation analysis.

View Article and Find Full Text PDF

Background: Neighborhood disadvantage, a social driver of health (SDOH), has been associated with adverse perinatal outcomes; yet little is known about its association with anesthetic choice.

Objective: The purpose of this study is to assess the association of neighborhood disadvantage and anesthetic choice for cesarean deliveries. We hypothesize that people from the most disadvantaged neighborhoods are more likely to receive general anesthesia for cesarean deliveries compared to those from the most advantaged neighborhoods.

View Article and Find Full Text PDF

Tau has a wide variety of essential functions in the brain, but this protein also plays a determining role in the development of Alzheimer's disease (AD) and other neurodegenerative diseases called tauopathies. This is due to its abnormal aggregation and the subsequent formation of neurofibrillary tangles. Tau hyperphosphorylation appears to be a critical step in its transformation into an aggregated protein.

View Article and Find Full Text PDF

Cancer initiation and progression result from genetic and epigenetic alterations caused by interactions between environmental and endogenous factors leading to aberrant cell signalling. Colorectal cancers (CRC) are linked to abnormal activation of the Wnt/β-catenin pathway, whose key feature is the nuclear accumulation of acetylated β-catenin in colon epithelial cells. Nuclear β-catenin acts as a transcriptional co-activator, targeting genes involved in cell proliferation and invasion.

View Article and Find Full Text PDF
Article Synopsis
  • The article outlines recent updates to virus taxonomy approved by the International Committee on Taxonomy of Viruses (ICTV) in April 2024.
  • The ICTV invited members to vote on 203 taxonomic proposals, resulting in significant additions across various levels, including one new phylum and 3,547 new species.
  • The total number of established virus species now stands at 14,690, following the ratification of proposals for species name formatting to the binomial system.
View Article and Find Full Text PDF
Article Synopsis
  • Researchers used density-functional theory to study the stability of beryllium metasilicate (BeSiO) and found it to be stable at pressures above 9 GPa, proposing the orthorhombic perovskite structure as the most stable form.
  • They provided detailed measurements for this structure, including specific unit-cell parameters and calculated the material's elastic properties, such as phonon frequencies and bulk modulus, which was determined to be 242 GPa.
  • The study also explored how BeSiO's unit-cell dimensions change under pressure, revealing its slight anisotropic compression and contributing to a better understanding of its mechanical behavior and bonding characteristics.
View Article and Find Full Text PDF

Background And Objectives: Moyamoya disease (MMD) is characterized by progressive steno-occlusion of the internal carotid arteries, leading to compensatory collateral vessel formation. The optimal surgical approach for MMD remains debated, with bilateral revascularization potentially offering more comprehensive protection but involving more extensive surgery compared to unilateral revascularization. This study aims to compare bilateral revascularization and unilateral revascularization short-term safety profile in the treatment of MMD.

View Article and Find Full Text PDF

Imaging studies have transformed the diagnosis of large vessel vasculitis (LVV) involvement in giant cell arteritis (GCA). A positron emission tomography/computed tomography (PET/CT) scan with 18-fluorodeoxyglucose (18F-FDG) has emerged as a valuable tool for assessing LVV. We aimed to determine the utility of an 18F-FDG-PET/CT scan in detecting LVV in GCA in the ARTESER registry.

View Article and Find Full Text PDF