544 results match your criteria: "Central University of Venezuela.[Affiliation]"

Aim: The present study clinically analyzes implant survival of immediate implant placement cases using the drilling through roots (DTR) technique for anatomically-guided implant site preparation, as an aid to placing immediate dental implants in multi-radicular teeth.

Materials And Methods: This clinical analysis utilized patients' electronic dental records who underwent immediate implant surgery using the DTR technique. All immediately placed implants were followed up regularly every year, after restoration.

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Contrasting genomic epidemiology between sympatric Plasmodium falciparum and Plasmodium vivax populations.

Nat Commun

September 2024

Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA.

The malaria parasites Plasmodium falciparum and Plasmodium vivax differ in key biological processes and associated clinical effects, but consequences on population-level transmission dynamics are difficult to predict. This co-endemic malaria study from Guyana details important epidemiological contrasts between the species by coupling population genomics (1396 spatiotemporally matched parasite genomes, primarily from 2020-21) with sociodemographic analysis (nationwide patient census from 2019). We describe how P.

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Injection therapy in professional footballers.

Int Orthop

November 2024

Centro Médico Profesional Las Mercedes, Av. Principal de Las Mercedes, piso 3, consultorio 37, Caracas, 1060, Venezuela.

Background: Injection therapy offers a minimally invasive approach for symptomatic relief that allows concurrent training, limiting time loss and providing a faster recovery. However, there is a lack of scientific evidence to support it, and there are controversies about its use. The present narrative review aims to present the available scientific literature on injection therapies in professional footballers (PF), highlighting the advantages and disadvantages of its use in the most common injuries.

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Background: The International Labour Organization (ILO) and the United Nations (UN) have promoted the concept of decent work as a Sustainable Development Goal for 2030 to address critical global problems. Occupational safety and health (OSH) are components of decent work, primarily through the ILO social protection objective of the goal, and are linked to various other objectives.

Objective: This Commentary applies a previously published staging framework to stimulate thinking about how the OSH field can contribute further to the achievement of decent work.

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Article Synopsis
  • The study looked at patients with diverticular disease (DD) and how their bowel movements, like constipation and diarrhea, relate to the seriousness of their condition.
  • Researchers measured the severity using different tools and checked how changes in bowel habits might predict future health problems.
  • They found that people with worse constipation or diarrhea had more severe DD and were more likely to develop a serious illness called acute diverticulitis over three years.
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Background: Hypertension affects 25%-30% of the world population. Hydrochlorothiazide (HCTZ) is among the most used and cheapest medications but was in 2018 labeled with a warning stating the increased risk of nonmelanoma skin cancer (NMSC). This study describes geographical differences in the association between HCTZ and NMSC from the perspective of hypertensive heart disease (HHD).

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Complications and adverse events in lymphadenectomy of the inguinal area: worldwide expert consensus.

BJS Open

July 2024

Catherine and Joseph Aresty Department of Urology, University of Southern California Institute of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.

Background: Inguinal lymph node dissection plays an important role in the management of melanoma, penile and vulval cancer. Inguinal lymph node dissection is associated with various intraoperative and postoperative complications with significant heterogeneity in classification and reporting. This lack of standardization challenges efforts to study and report inguinal lymph node dissection outcomes.

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Purpose: This interlaboratory comparison was conducted to evaluate the performance of the Latin-American Biodosimetry Network (LBDNet) in analyzing digitized images for scoring dicentric chromosomes from irradiated blood samples. The exercise also assessed the use of weighted robust algorithms to compensate the uneven expertise among the participating laboratories.

Methods: Three sets of coded images obtained through the dicentric chromosome assay from blood samples irradiated at 1.

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Cardiovascular disease is the leading cause of mortality, disproportionately affecting low-income and low-middle-income countries (LICs/LMICs). Despite this, cardiology research commonly comes from affluent regions. This study assessed the authorship trends from LICs/LMICs in cardiology journals listed in PubMed from 2000 to 2022.

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BACKGROUND Histoplasmosis is typically associated with immunocompromised individuals, but cases in immunocompetent patients are rare. Primary cutaneous histoplasmosis (PCH) is a challenging diagnosis due to its clinical polymorphism and can mimic other infectious and non-infectious diseases. Previous cases of PCH have been reported in immunocompetent patients with underlying medical conditions or trauma history.

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Cooperation for malaria control and elimination in the Guiana Shield.

Lancet Glob Health

May 2024

French West Indies-French Guiana Center for Clinical Investigation (CIC Inserm 1424), Department of Research, Innovation, and Public Health, Cayenne Hospital, Cayenne, French Guiana, France.

The Guiana Shield, a small region of South America, is currently one of the main hotspots of malaria transmission on the continent. This Amazonian area is characterised by remarkable socioeconomic, cultural, health, and political heterogeneity and a high degree of regional and cross-border population mobility, which has contributed to the increase of malaria in the region in the past few years. In this context, regional cooperation to control malaria represents both a challenge and an indispensable initiative.

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Background And Purpose: An estimated 40% of patients with erectile dysfunction have a poor prognosis for improvement with currently available treatments. The present study investigated whether a newly developed monoamine transport inhibitor, IP2015, improves erectile function.

Experimental Approach: We investigated the effects of IP2015 on monoamine uptake and binding, erectile function in rats and diabetic mice and the effect on corpus cavernosum contractility.

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Sampling and Extraction of Plant Parasitic Nematodes.

Methods Mol Biol

March 2024

Institute of Agriculture Zoology, Central University of Venezuela (UCV), Maracay, Venezuela.

The study of nematodes requires availability of nematode specimens and their population densities in plants and soil. This can be achieved using adequate sampling schemes and extraction methods. In this chapter, the most common and suitable sampling and extraction procedures and equipment are described.

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Background: The coronavirus disease 2019 (COVID-19) pandemic has disrupted multiple health services, including human immunodeficiency virus (HIV) testing, care, and treatment services, jeopardizing the achievement of the Joint United Nations Programme on HIV/AIDS 90-90-90 global target. While there are limited studies assessing the impact of the COVID-19 pandemic on people living with HIV (PLHIV) in Latin America, there are none, to our knowledge, in Venezuela. This study aims to assess the impact of the COVID-19 pandemic among PLHIV seen at the outpatient clinic of a reference hospital in Venezuela.

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A series of heterocyclic chloroquine hybrids, containing a chain of two carbon atoms at position four of the quinolinic chain and acting as a link between quinoline and several benzoyl groups, is synthesized and screened in vitro as an inhibitor of β-hematin formation and in vivo for its antimalarial activity against chloroquine-sensitive strains of ANKA in this study. The compounds significantly reduced haeme crystallization, with IC values < 10 µM. The values were comparable to chloroquine's, with an IC of 1.

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Impact of Antigen Exposure on Outcomes and Treatment Response in Fibrotic Hypersensitivity Pneumonitis.

Chest

June 2024

Department of Medicine, University of British Columbia, Vancouver, BC, Canada; Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, Canada. Electronic address:

Background: Patients with fibrotic hypersensitivity pneumonitis (fHP) are frequently treated with immunosuppression to slow lung function decline; however, the impact of this treatment has not been studied across different types of antigen exposure.

Research Question: In patients with fHP, do disease outcomes and response to treatment vary by antigen type?

Study Design And Methods: A multicenter interstitial lung disease database (Canadian Registry for Pulmonary Fibrosis) was used to identify patients with fHP. The causative antigen was categorized as avian, mold, unknown, or other.

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The current study investigates attitudes toward one form of sex for resources: the so-called sugar relationships, which often involve exchanges of resources for sex and/or companionship. The present study examined associations among attitudes toward sugar relationships and relevant variables (e.g.

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New daily persistent headache after SARS-CoV-2 infection in Latin America: a cross-sectional study.

BMC Infect Dis

December 2023

Department of Infectious Diseases and Tropical Medicine, Venezuelan Science Incubator, Barquisimeto, Venezuela.

Background: Persistent headache is a frequent symptom after coronavirus disease 2019 (COVID-19) and there is currently limited knowledge about its clinical spectrum and predisposing factors. A subset of patients may be experiencing new daily persistent headache (NDPH) after COVID-19, which is among the most treatment-refractory primary headache syndromes.

Methods: We conducted a cross-sectional study in Latin America to characterize individuals with persistent headache after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and to identify factors associated with NDPH.

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Clinical Challenge in Urology: Correctly Managing Common Penile Lesions Goes a Long Way.

Urology

February 2024

The Catherine and Joseph Aresty Department of Urology, USC Institute of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA. Electronic address:

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Venomics of Leiurus abdullahbayrami, the most lethal scorpion in the Levant region of the Middle East.

Toxicon

January 2024

Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, 11501, Costa Rica.

The scorpion Leiurus abdullahbayrami has been associated with severe/lethal envenomings throughout the Levant region of the Middle East, encompassing Turkey, Syria, and Lebanon, and only scarce information is available on its venom composition, activity, and antigenicity. We report on the composition of L. abdullahbayrami venom collected from Lebanese specimens using nESI-MS/MS, MALDI-TOF MS, SDS-PAGE and RP-HPLC.

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The aim of this study was to describe the treatment of permanent teeth diagnosed with irreversible pulpitis, which can be effectively managed with partial or total pulpotomy. This alternative approach has shown great clinical and radiographic success in the long term compared to traditional pulpectomies. In this series of clinical cases, all the teeth exhibited symptoms of intense pain upon exposure to cold and at night.

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Article Synopsis
  • Love significantly influences personal relationships, making it essential to have an accurate way to measure love experiences.
  • The original tool for measuring love, Sternberg's Triangular Love Scale (TLS-45), assesses intimacy, passion, and commitment, but many studies use shorter versions.
  • Researchers created the TLS-15, a validated, reliable short version of the scale, which proved effective across various cultures and offers a consistent measure of love’s components globally.
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Introduction: Invasion of the central nervous system (CNS) is the most serious consequence of infection, which causes sleeping sickness. Recent experimental data have revealed some more insights into the disease during the meningoencephalitic stage. However, detailed cellular processes befalling the CNS during the disease are poorly understood.

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