Publications by authors named "Parra P"

Nanotechnology has been a promising plant protection discipline in recent years, attributed to the unique physicochemical properties exhibited at the nanoscale. In this context, silver nanoparticles (AgNPs) have been effective in various applications, including medical, industrial, and agronomic, and during the last few years, the control of insect pests has raised great interest. The present review mainly provides updated information about the use of AgNPs elaborated by different synthesis methods, such as biological (plants, microorganisms), physical, and chemical, and their effect against various insect species of agricultural importance belonging to the order Diptera, Coleoptera, Lepidoptera, and Hemiptera.

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The QuantiFERON-Monitor assay (QTF-Monitor) is intended to assess innate and adaptive immune responses by quantifying interferon (IFN)-γ release upon whole blood stimulation with a TLR7/8 agonist and an anti-CD3 antibody. We performed the QTF-Monitor in 126 kidney transplant recipients (KTRs) at different points during the first 6 post-transplant months. The primary outcome was overall infection, whereas secondary outcomes included bacterial infection, opportunistic infection and cancer.

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  • Bismuth quadruple therapies (BQTs) have been effective in treating Helicobacter pylori infections in Europe, particularly in the face of antibiotic resistance, with notable use increasing from 8.6% in 2013 to 39% in 2021.
  • An analysis of data from nearly 50,000 patients indicated that the single-capsule BQT was the most common regimen and achieved over 90% effectiveness with certain combinations.
  • Key factors that improved treatment success included adherence to the regimen, use of high-dose proton pump inhibitors, and implementing the therapy as a first-line treatment.
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Acute myocardial ischemia triggers a rapid mobilization of neutrophils from the bone marrow to peripheral blood, facilitating their infiltration into the infarcted myocardium. These cells are critical for inducing inflammation and contributing to myocardial repair. While neutrophils in infarcted tissue are better characterized, our understanding of whether and how ischemia regulates neutrophil production, differentiation, and functionality in the bone marrow remains limited.

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Background: Intraoperative hemorrhage in cardiac surgery increases risk of morbidity and mortality. Low pre-operative and perioperative levels of fibrinogen, a key clotting factor, are associated with severity of hemorrhage and increased transfusion of blood components. The ability to supplement fibrinogen during hemorrhagic resuscitation is delayed 45-60 min because cryoprecipitated antihemophilic factor (cryo AHF) is stored frozen, due to a short post-thaw shelf life.

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  • A study examined how different reasons for testing for Helicobacter pylori (H. pylori) affect treatment prescriptions and their success rates across Europe from 2013 to 2023.
  • Out of 53,636 cases, the most common reasons for testing included dyspepsia with normal endoscopy and various types of ulcers, with treatment effectiveness ranging from 87% to 91% based on the indication.
  • Patients with ulcers and preneoplastic lesions experienced higher treatment success and compliance, while those tested for dyspepsia had higher rates of adverse effects.
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  • Rathke's cleft cysts (RCC) are common lesions in the sellar region, often monitored without treatment, but some may require surgery; however, their natural progression and surgery outcomes are still unclear.
  • A national study tracked 177 patients with RCC over an average of 67.3 months, with additional data on 88 patients who had surgery, revealing that most cysts remained stable or shrank, while only a small percentage grew significantly.
  • Results indicated that conservative management is preferable for asymptomatic RCC, as most patients achieved symptom relief post-surgery, but recurrences can occur later without identifiable predictors.
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Purpose: The experience of ethnically diverse parents of children with serious illness in the US health care system has not been well studied. Listening to families from these communities about their experiences could identify modifiable barriers to quality pediatric serious illness care and facilitate the development of potential improvements. Our aim was to explore parents' perspectives of their children's health care for serious illness from Somali, Hmong, and Latin-American communities in Minnesota.

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Purpose: To compare the clinical and hormonal characteristics of patients with familial hyperaldosteronism (FH) and sporadic primary aldosteronism (PA).

Methods: A systematic review of the literature was performed for the identification of FH patients. The SPAIN-ALDO registry cohort of patients with no suspicion of FH was chosen as the comparator group (sporadic group).

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  • CMV-seropositive kidney transplant recipients (KTRs) with immune protection can still experience CMV infections, prompting researchers to explore potential biomarkers for identifying those at risk.
  • Whole blood miRNA sequencing was conducted, revealing that hsa-miR-125a-5p levels were significantly lower in KTRs who developed CMV viremia within 90 days.
  • hsa-miR-125a-5p may be useful as a biomarker for assessing the risk of CMV reactivation in KTRs, despite the presence of detectable CMV-specific immune responses.
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Purpose: We investigated the role of fecal calprotectin (FC) and lactoferrin (FL) as predictive biomarkers in Clostridioides difficile infection (CDI).

Methods: We assembled a prospective cohort including all patients with a laboratory-confirmed CDI diagnosis between January and December 2017. FL and FC levels were measured at diagnosis by commercial ELISA and EIA kits.

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  • The study investigates the connection between SARS-CoV-2 viral load (viremia) and genetic variations (SNPs) linked to the severity of COVID-19 in a group of hospitalized patients at University Hospital La Princesa.
  • Out of 340 patients analyzed, only 37.1% had positive viremia, with specific SNPs (like rs2071746 and rs78958998) associated with a higher risk of viremia, while others (like rs11052877 and rs33980500) were linked to a lower risk.
  • The findings suggest that certain genetic variants contribute to differences in SARS-CoV-2 viremia among individuals, highlighting the
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The segmentation of patients into homogeneous groups could help to improve eradication therapy effectiveness. Our aim was to determine the most important treatment strategies used in Europe, to evaluate first-line treatment effectiveness according to year and country. : All first-line empirical treatments registered at AEGREDCap in the European Registry on management (Hp-EuReg) from June 2013 to November 2022.

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We measured cytomegalovirus (CMV)-specific antibodies that neutralize epithelial cell infection (CMV-AbNEIs) in 101 CMV-seropositive kidney transplant recipients (KTRs) at baseline and posttransplant months 3 and 6. All the patients received antithymocyte globulin and 3-month valganciclovir prophylaxis. There were no significant differences in pretransplant AbNEIs titers between KTRs that developed or did not develop any-level CMV infection or the composite of high-level infection and/or disease.

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The best method for monitoring cytomegalovirus (CMV)-specific cell-mediated immunity (CMV-CMI) among high-risk kidney transplant (KT) recipients remains uncertain. We assessed CMV-CMI by intracellular cytokine staining (ICS) by flow cytometry and a commercial interferon (IFN)-γ release assay (QuantiFERON®-CMV [QTF-CMV]) at posttransplant months 3, 4, and 5 in 53 CMV-seropositive KT recipients that had received induction therapy with antithymocyte globulin (ATG) and a 3-month course of valganciclovir prophylaxis. The discriminative capacity (areas under receiver operating characteristics curve [auROCs]) and diagnostic accuracy to predict immune protection against CMV infection from the discontinuation of prophylaxis to month 12 were compared between both methods.

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This study emphasizes the importance of utilizing biodegradable material Butea parviflora (BP) fiber for sustainable solutions. BP fiber offers numerous ecological benefits, such as being lightweight, biodegradable, and affordable to recycle. The study examines the effects of potassium permanganate (KMnO) treatment on BP fiber and analyzes its physical and chemical behavior using various methods, including X-ray Diffraction (XRD) analysis, tensile testing, thermogravimetric analysis, thermal conductivity, Scanning Electron Microscopy (SEM), and Fourier Transform Infrared spectroscopic (FTIR) analysis.

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The most valuable components of coal fly ash are cenospheres. Cenospheres are hollow spherical particles produced during the coal-burning processes. As a result of their excellent characteristics, such as high workability, high heat resistance, low bulk density, and high strength, cenospheres can be used in the manufacturing of lightweight cement concrete.

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According to the recommendations by the World Health Organization, the insertion of a peripheral venous catheter (PVC) must be an aseptic procedure while using non-sterile gloves. To overcome this apparent contradiction we have invented and patented (WO/2021/123482) a new device to be used during PVC insertion. The device permits the PVC placement in the vein while avoiding to directly touch the catheter with the fingertips.

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Background And Aims: Whether cytomegalovirus (CMV) infection increases the risk of cardiovascular complications after kidney transplantation (KT) through different indirect effects remains controversial.

Methods: We analyzed the incidence of post-transplant atherosclerotic (PAEs) and thrombotic events (PTEs) in 465 KT recipients according to the previous exposure to any level or high-level (≥1,000 IU/mL) CMV viremia (either asymptomatic or clinical disease) by means of landmark analysis beyond days 30, 180 and 360 after transplantation. Proportional hazards models were constructed with death and graft loss as competing risks.

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COVID-19 vaccines have saved millions of lives and prevented countless adverse patient disease outcomes. Understanding the long-term effectiveness of these vaccines is imperative to developing recommendations for precautions and booster doses. Comparisons between more and less vaccinated groups may be misleading due to selection bias, as these groups may differ in underlying health status and thus risk of adverse COVID-19 outcomes.

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Torque teno virus (TTV) DNAemia has been proposed as a surrogate marker of immunosuppression after kidney transplantation (KT), under the assumption that the control of viral replication is mainly exerted by T-cell-mediated immunity. However, Tthe impact on post-transplant TTV kinetics of single genetic polymorphisms (SNPs) in genes orchestrating innate responses remains unknown. We aimed to characterize the potential association between 14 of these SNPs and TTV DNA levels in a single-center cohort of KT recipients.

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Objective: to determine the profile of pregnancies and prevalence of adherence to puerperal consultation among adolescent puerperal women compared to non-adolescent puerperal women served in an outpatient clinic of a teaching hospital in the rural area of Minas Gerais.

Method: cross-sectional study nested in a cohort of puerperal women; non-probabilistic sample, by convenience; adolescent pregnancy - dependent variable; sociodemographic, clinical and obstetric - independent variables. It employed its own instrument, tested by means of a pilot test.

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Background: Torque teno virus, the major member of the genus Alphatorquevirus , is an emerging biomarker of the net state of immunosuppression after kidney transplantation. Genetic diversity constitutes a main feature of the Anelloviridae family, although its posttransplant dynamics and clinical correlates are largely unknown.

Methods: The relative abundance of Alphatorquevirus , Betatorquevirus , and Gammatorquevirus genera was investigated by high-throughput sequencing in plasma specimens obtained at various points during the first posttransplant year (n = 91 recipients).

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