Publications by authors named "Pena C"

The emerging ex vivo machine perfusion (MP) enables the extension of ex situ intervals, potentially expanding the heart transplant (OHT) donor pool. From October 18, 2018, to June 30, 2023, isolated OHT using donation after brain death (DBD) from extended distances (>500 miles) were identified in the United Network for Organ Sharing database, and categorized into cold storage (non-MP, N = 1,212) and MP group (N = 152). The MP utilization rate for DBD hearts from extended distances surged from 0% in 2018 to 27.

View Article and Find Full Text PDF

Salt-sensitive blood pressure is a clinical phenotype defined as exaggerated blood pressure responses to salt loading and salt depletion. This characteristic occurs in 25% of the general population and 50% of patients with hypertension and contributes to the pathogenesis of hypertension in some patients. Hypertension is associated with chronic inflammatory responses and has immune cell accumulation in several hypertensive target organs, including the brain, kidneys, heart, blood vessels, and the perivascular adipose tissue, and these cellular responses likely exacerbate hypertension.

View Article and Find Full Text PDF

Background: Chronic social defeat stress is a widely used depression model in male mice. Several proposed adaptations extend this model to females with variable, often marginal effects. We examine if the widely used male-defined metrics of stress are suboptimal in females witnessing defeat.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on detecting multijet signatures from proton-proton collisions at a high energy of 13 TeV, analyzing a dataset totaling 128 fb^{-1}.
  • A special data scouting method is utilized to pick out events with low combined momentum in jets.
  • This research is pioneering in its investigation of electroweak particle production in R-parity violating supersymmetric models, particularly examining hadronically decaying mass-degenerate higgsinos, and it broadens the limits on the existence of R-parity violating top squarks and gluinos.
View Article and Find Full Text PDF

Background: Few studies have assessed patient-reported experience measures in nephropathic cystinosis. This study uses patient reports focused on the impact of cystinosis, cysteamine treatment-associated problems, and therapeutic adherence and suggests potential actions for improvement.

Methods: In March 2022, six patients with nephropathic cystinosis treated with cysteamine, aged between 12 and 40 years as well as two caregivers, underwent standardized online interviews.

View Article and Find Full Text PDF

Introduction: Diffuse large B-cell lymphoma (DLBCL) is the most common type of B-cell lymphoma, predominantly afflicting older adults. There remains a notable absence of data regarding DLBCL in older adults in Latin America.

Materials And Methods: We conducted a retrospective analysis of 608 newly diagnosed Latin American patients with DLBCL aged ≥65 years.

View Article and Find Full Text PDF

Background: Older adults have highly heterogeneous aging rates.

Objective: To explore the association of biological age (BA) and accelerated aging with frailty in community-dwelling older adults.

Methods: We assessed 735 community-dwelling older adults from the Coyocan Cohort.

View Article and Find Full Text PDF
Article Synopsis
  • * Among PHAs, the P(3HB--3HV) copolymers are notable for their soft, flexible nature, making them suitable for a wider range of applications, particularly in bioplastics.
  • * Recent advancements have focused on enhancing PHA production through innovative fermentation strategies using various microbial strains and low-cost substrates, aiming to improve the yield and mechanical properties of copolymers for biomedical uses.
View Article and Find Full Text PDF

Purpose: A single-center retrospective study was performed to evaluate the safety and efficacy of minimally invasive irreversible electroporation (IRE) to treat metastatic adrenal tumors.

Materials And Methods: This single-center study, approved by the Institutional Review Board, retrospectively analyzed six patients who underwent image-guided percutaneous IRE for adrenal metastases. Pre-procedural imaging included CT, MRI and/or F-FDG PET-CT scans.

View Article and Find Full Text PDF

The first search for soft unclustered energy patterns (SUEPs) is performed using an integrated luminosity of 138  fb^{-1} of proton-proton collision data at sqrt[s]=13  TeV, collected in 2016-2018 by the CMS detector at the LHC. Such SUEPs are predicted by hidden valley models with a new, confining force with a large 't Hooft coupling. In events with boosted topologies, selected by high-threshold hadronic triggers, the multiplicity and sphericity of clustered tracks are used to reject the background from standard model quantum chromodynamics.

View Article and Find Full Text PDF

Colorectal cancer (CRC) is a multifactorial disease driven by genetic and epigenetic alterations that modulate specific metabolic pathways. Despite the availability of effective treatments like 5-fluorouracil (5-FU), pharmacological therapy for CRC still faces significant challenges, including drug resistance, toxicity, and limited specificity. Therefore, discovering new compounds remains critical to overcoming these barriers and expanding treatment options.

View Article and Find Full Text PDF

The first search for the Z boson decay to ττμμ at the CERN LHC is presented, based on data collected by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138  fb^{-1}. The data are compatible with the predicted background. For the first time, an upper limit at the 95% confidence level of 6.

View Article and Find Full Text PDF

Phasins are proteins located on the surface of poly-3-hydroxybutyrate (P3HB) granules that affect the metabolism of the polymer, the size and number of the granules, and some also have stress-protecting and growth-promoting effects. This study evaluated the effect of inactivating two new phasins (PhbP2 or PhbP3) on the cellular growth, production, and molecular mass of P3HB in cultures under low or high oxygen transfer rates (OTR). The results revealed that under high OTRₘₐₓ conditions (between 8.

View Article and Find Full Text PDF
Observation of the decay.

Eur Phys J C Part Fields

October 2024

Using proton-proton collision data corresponding to an integrated luminosity of collected by the CMS experiment at , the decay is observed for the first time, with a statistical significance exceeding 5 standard deviations. The relative branching fraction, with respect to the decay, is measured to be , where the first uncertainty is statistical, the second is systematic, and the third is related to the uncertainties in and .

View Article and Find Full Text PDF

A search for collective effects inside jets produced in proton-proton collisions is performed via correlation measurements of charged particles using the CMS detector at the CERN LHC. The analysis uses data collected at a center-of-mass energy of sqrt[s]=13  TeV, corresponding to an integrated luminosity of 138  fb^{-1}. Jets are reconstructed with the anti-k_{T} algorithm with a distance parameter of 0.

View Article and Find Full Text PDF
Article Synopsis
  • The synthesis of protic ionic liquids (PILs) often yields incomplete proton transfer, leading to the presence of both parent compounds and ionic species, diminishing their purity.
  • This study examines tris(2-hydroxyethyl)ammonium-based PILs with various anions that are low in toxicity and can disrupt the hydrogen-bonding network in biopolymers, focusing on improving synthesis methods by avoiding solvents and maintaining moderate temperatures.
  • NMR analysis revealed that the ionicity of these PILs ranges from 20% to 86%, suggesting that the term "ionic liquid" may not be entirely accurate, as both un-ionized and ionic species are present; thermal stability tests show minimal influence from the anions
View Article and Find Full Text PDF

Background: Lymphoma is the second most prevalent cancer treated with autologous stem cell transplantation (ASCT). Additional resources are required to enhance the provision of care for these patients.

Objective: To explore the complications and economic costs of home versus hospital care models for ASCT in patients diagnosed with lymphoma and to describe the experience of home care patients.

View Article and Find Full Text PDF
Article Synopsis
  • Follicular lymphoma (FL) is the most common slow-growing non-Hodgkin lymphoma in the U.S. and Europe, but there's limited data from Latin America, particularly Chile.
  • The study involved 722 Chilean patients diagnosed with FL from 2000 to 2019, revealing a median diagnosis age of 62, with many patients presenting advanced disease and a significant number affected by bone marrow involvement.
  • Key findings show that adding rituximab to chemotherapy improves overall survival and response rate, while experiencing POD24 (progression of disease within 24 months) indicates much poorer survival outcomes.
View Article and Find Full Text PDF
Article Synopsis
  • Patients with immunodeficiency are at a higher risk of developing certain cancers, particularly mature lymphoid neoplasms and lymphoproliferative disorders.
  • A 50-year-old woman on immunosuppressive therapy for dermatomyositis presented with swollen lacrimal glands, weight loss, and night sweats, leading to an elective biopsy.
  • Post-surgery, she experienced acute abdominal issues that revealed multiple organ lesions and ultimately led to a diagnosis of polymorphic B-lymphoproliferative disorder resembling lymphomatoid granulomatosis, a rare condition linked to immunosuppression.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the relationship between Philadelphia negative myeloproliferative neoplasms (MPN Ph (-)) and monoclonal gammopathies (MG), noting a 3 to 14% occurrence and higher thrombosis risk in patients with both conditions.
  • A retrospective analysis reviewed clinical data of 144 patients diagnosed with MPN Ph (-) between 2015 and 2020, identifying 6 patients, all female, who also had MG.
  • Findings showed that while the occurrence of MG in this group was expected for their age, there were concerns about thrombotic events, prompting calls for more research on the link between these conditions.
View Article and Find Full Text PDF

Phylogenetic analyses showed that the virus responsible for a May 2024 Oropouche fever outbreak in Cuba was closely related to viruses from Brazil in 2023. Pools of Ceratopogonidae spp. biting midges and Culex quinquefasciatus mosquitoes were positive for Oropouche viral RNA.

View Article and Find Full Text PDF

The COVID-19 pandemic has pushed the population to adopt increasingly sedentary lifestyles. Faced with this problem, remote training appears as a practical and inexpensive strategy to promote physically active lifestyles. The aim of this research was to compare the effects of remote versus in-person training on metabolic profiles and body composition of physically inactive adults.

View Article and Find Full Text PDF

In this era of a global biodiversity crisis, vascular plants are facing unprecedented extinction rates. We conducted an assessment of the extinction risk of 32 species and 7 subspecies of Copiapoa, a genus endemic to Chile's fog-dependent coastal Atacama Desert. We applied the International Union for Conservation of Nature Red List Categories and Criteria enhanced by expert insights and knowledge.

View Article and Find Full Text PDF
Article Synopsis
  • Demand for computing power in major scientific experiments, like the CMS at CERN, is expected to significantly increase over the coming decades.
  • The implementation of coprocessors, particularly GPUs, in data processing workflows can enhance performance and efficiency, especially for machine learning tasks.
  • The Services for Optimized Network Inference on Coprocessors (SONIC) approach allows for improved use of coprocessors, demonstrating successful integration and acceleration of workflows across various environments without sacrificing throughput.
View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: controllers/Author.php

Line Number: 219

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 219
Function: _error_handler

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: libraries/Pagination.php

Line Number: 413

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 274
Function: create_links

File: /var/www/html/index.php
Line: 316
Function: require_once