Publications by authors named "Varela N"

During the pandemic, there were a lot of lockdowns that brought changes to the population's daily routine, reducing social interactions, changing work and study methods, isolating the family at their home, which brought changes to family dynamics. These changes sparked the interest of nursing students in carrying out a research study. Starting from the question: What is the role of the dog in the family dynamics in times of pandemic? and the objective: identify the guardians' perceptions about the role of the dog in the family dynamics in a period of confinement, a qualitative, exploratory, and descriptive study was carried out, collecting data through a focus group with six guardians from different families.

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Siponimod is a selective immunosuppressive medication, developed as the first oral therapy for active secondary progressive multiple sclerosis. This medication acts by modulating the sphingosine 1 phosphate (S1P) receptor, as an antagonist of S1P1 and S1P5, thus preventing the egress of lymphocytes from lymph nodes and preventing inflammatory processes in the Central Nervous System that trigger demyelination. There is extensive scientific knowledge regarding the administration of the medication to patients, which will depend on their pharmacogenetic characteristics.

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Patients aged 50 or above diagnosed with myeloid neoplasms (MNs) are typically not candidates for germline testing. However, approximately 8% carry pathogenic germline variants. Allogeneic haematopoietic stem cell transplantation (alloHSCT) remains an option for those aged over 50; neglecting germline testing could mask the risk for relative donor cell-derived MN.

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Polycystic ovarian syndrome (PCOS) is a common endocrinological disorder affecting many adolescents and women of reproductive age worldwide. A diagnosis of PCOS in adolescence relies upon investigating each medical history independently and noting commonly associated symptoms, including obesity, insulin resistance, acne, menstrual abnormalities, and hirsutism. Many researchers are aiming to discover a methodology to help manage the symptoms associated with PCOS, especially in adolescents.

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Background: The COVID-19 pandemic created new challenges and barriers for the work of child protection professionals (CPPs) and intensified existing hardships for families and children, increasing the risk of child maltreatment. As new restrictions and precautions were implemented by governments worldwide to stop the virus from spreading, CPPs had to adapt to a new reality of working remotely. However, limited research has investigated how remote work impacted CPPs and child protection work and how CPPs handled this alternative work style.

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Background: The COVID-19 pandemic increased the likelihood of child maltreatment and made already difficult circumstances for children and their families much worse. This increased the significance of the child protection system's role in responding to child maltreatment and ensuring children's rights, including their right to a safe life without violence. Unfortunately, accumulating evidence has indicated that the rates of child maltreatment increased during the pandemic.

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The objective of this study was to compare, by qPCR, the circulating blood parasite load of in the buffy coat, and in whole blood mixed with boiled and unboiled guanidine hydrochloride-EDTA buffer, of individuals with chronic ChD. The concentration and purity of DNA were evaluated in a Nanodrop Denovix DS-11FX Series Spectrophotometer (DeNovix Inc., Wilmington, NC, USA).

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Background: COVID-19 significantly worsened already challenging circumstances for children and their families and globally increased the likelihood of child maltreatment. This risk heightened the urgency of child protection professionals in preventing child maltreatment and defending children's rights. The vast and growing body of research on protecting children from child maltreatment during COVID-19 has emphasized practitioners' tremendous difficulty in this arena.

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Background: The COVID-19 pandemic led to numerous challenges for child protection professionals (CPPs). However, limited research has investigated the interwoven concepts of coping, resilience, and mental distress among CPPs during COVID-19 on a global scale.

Objectives: This study aimed to explore CPPs' practice, resilience, and mental distress during COVID-19, the relationship between their resilience and mental distress, the global stability of the Multi-System Model of Resilience (MSMR), and how CPPs' resilience varied according to the Human Development Index (HDI).

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Colorectal cancer is a common disease, both in Chile and worldwide. The most widely used chemotherapy schemes are based on 5-fluorouracil (5FU) as the foundational drug (FOLFOX, CapeOX). Genetic polymorphisms have emerged as potential predictive biomarkers of response to chemotherapy, but conclusive evidence is lacking.

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Background: The COVID-19 pandemic challenged child protection and posed new risks for child maltreatment (CM). Moreover, governmental efforts worldwide prioritized mitigating the spread of the virus over ensuring the welfare and protection of families and children. This neglect caused hardship for many vulnerable children, including those in out-of-home care (OOHC), and challenged the functionality of child protective services (CPS).

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Treatment with second-generation antipsychotics (SGAs) can cause obesity and other cardiometabolic disorders linked to D2 receptor (DRD2) and to genotypes affecting dopaminergic (DA) activity, within reward circuits. We explored the relationship of cardiometabolic alterations with single genetic polymorphisms rs1799732 (NG_008841.1:g.

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Background: The COVID-19 pandemic triggered new risks for child maltreatment (CM) and exacerbated existing challenges for families and children, elevating the importance of child protection professionals (CPPs) while also adding barriers to their work. During the pandemic, many CPPs experienced increased workloads, a disrupted work environment, and personal pandemic-related hardships. However, the scope of how COVID-19 impacted CPPs globally, as well as their adopted coping strategies, have not been well explored.

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Article Synopsis
  • Pharmacogenomics (PGx) is a growing field in developing countries, particularly in Latin America and the Caribbean (LAC), but research and information are limited, making it challenging to apply findings across diverse populations.
  • The study reviewed PGx knowledge among the LAC scientific community, identified barriers to its clinical use, and surveyed 106 professionals to evaluate these obstacles, revealing that the primary barrier is the lack of guidelines for implementing PGx in practice.
  • Despite these challenges, LAC has contributed 3.44% of global PGx publications and identified gene/drug pairs, such as tamoxifen and clopidogrel, as significant for improving genomic medicine responses, although cost-effectiveness concerns remain a critical issue.
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The availability of long-term (>2 years) safety outcomes of spinal cord stimulation (SCS) remains limited. We evaluated safety in a global SCS registry for chronic pain. Participants were prospectively enrolled globally at 79 implanting centers and followed out to 3 years after device implantation.

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Many primary-tumor subregions exhibit low levels of molecular oxygen and restricted access to nutrients due to poor vascularization in the tissue, phenomenon known as hypoxia. Hypoxic tumors are able to regulate the expression of certain genes and signaling molecules in the microenvironment that shift it towards a more aggressive phenotype. The transcriptional landscape of the tumor favors malignant transformation of neighboring cells and their migration to distant sites.

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Purpose: This guideline provides direction to clinicians and patients regarding how to recognize interstitial cystitis/bladder pain syndrome (IC/BPS), conduct a valid diagnostic process, and approach treatment with the goals of maximizing symptom control and patient quality of life while minimizing adverse events and patient burden.

Methods: An initial systematic review of the literature using the MEDLINE® database (search dates 1/1/83-7/22/09) was conducted to identify peer-reviewed publications relevant to the diagnosis and treatment of IC/BPS. The review yielded an evidence base of 86 treatment articles after application of inclusion/exclusion criteria.

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Background: Alongside deficits in children's wellbeing, the COVID-19 pandemic has created an elevated risk for child maltreatment and challenges for child protective services worldwide. Therefore, some children might be doubly marginalized, as prior inequalities become exacerbated and new risk factors arise.

Objective: To provide initial insight into international researchers' identification of children who might have been overlooked or excluded from services during the pandemic.

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Article Synopsis
  • - Understanding the transmission dynamics of SARS-CoV-2 is crucial for developing effective prevention strategies, with genome sequencing offering insights into infection pathways.
  • - A study analyzed 49 SARS-CoV-2 samples from local clusters in NW Spain, revealing that while genomic data generally aligned with epidemiological information, it struggled to definitively identify direct transmission events due to low levels of genetic variation.
  • - The research suggests that the ability to reconstruct direct SARS-CoV-2 transmission using genomic data is limited by a slow mutation rate and technical challenges, highlighting the need for detailed contact tracing to supplement genomic analyses.
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Background: Type I IFN (IFN-I) is a family of cytokines involved in the pathogenesis of autoimmune and autoinflammatory diseases such as psoriasis. SIDT1 is an ER-resident protein expressed in the lymphoid lineage, and involved in anti-viral IFN-I responses in vivo, through an unclear mechanism. Herein we have dissected the role of SIDT1 in the natural IFN-producing cells, the plasmacytoid dendritic cells (pDC).

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Gastric cancer (GC) is the fifth leading cause of cancer deaths in the world, with variations across geographical regions and ethnicities. Emerging evidence indicates that miRNA expression is dysregulated in GC and its polymorphisms may contribute to these variations, which has yet to be explored in Latin American populations. In a case-control study of 310 GC patients and 311 healthy donors from Chile, we assessed the association of 279 polymorphisms in 242 miRNA genes.

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