61,487 results match your criteria: "Colombia; Smithsonian Tropical Research Institute[Affiliation]"

"Doctor, I Want to Be Like This!": Exploring Global Beauty Body Standards Through a Multicenter Survey.

Plast Reconstr Surg Glob Open

January 2025

Academia de Chirurgia Plastica Mario Mendanha, Rua das Laranjeiras, Porto, Portugal.

Background: Plastic surgery aims to enhance patients' positive features and improve perceived flaws without seeking complete transformation. The body is a living organism, not a sculptural object to be reshaped at will. Aesthetic standards are influenced by subjective factors, including technology and social media's effect on self-perception and beauty ideals.

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Global perspectives on the biodegradation of LDPE in agricultural systems.

Front Microbiol

January 2025

Corporación para la Investigación de la Corrosión (CIC), Piedecuesta, Colombia.

The increasing use of plastics globally has generated serious environmental and human health problems, particularly in the agricultural sector where low-density polyethylene (LDPE) and other plastics are widely used. Due to its low recycling rate and slow degradation process, LDPE is a major source of pollution. This paper addresses the problem of plastic accumulation in agriculture, focusing on LDPE biodegradation strategies.

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Two new species of are described, from Cerro Bañaderos in Hatonuevo, La Guajira, and from Roca Madre Cave, Toluviejo, Sucre, both from the Tropical Dry Forest (TDF) areas of the Colombian Caribbean. The latter represent the first troglobitic species of the genus. Moreover, based on specimens from Sierra Nevada de Santa Marta, Magdalena (type locality), is placed into and an identification key for all species of the genus is given.

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Background: Internal displacement and cross-country migration are an increasing global phenomenon drawing the attention of politicians and the public. Causes and effects on the migrants and receptor populations are varied and often shaped by immigration laws and how migrants and refugees are being dealt with by local conditions, policy frameworks and by the host population (receptors). The massive influx of Venezuelan migrants into Colombia for more than a decade has characteristics which warrant a systematic analysis to identify contextual and individual factors favouring and hindering the well-being of migrants and their new Colombian neighbours of the receptor population.

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Contamination of soils with toxic metals poses significant threats to human health and ecosystems. Plant-based remediation strategies can play a vital role in mitigating these risks, and the use of plants as a remediation strategy can help reduce these risks. In this study, we investigate the remediation potential of native plants in accumulating and translocating metal(loid)s at a Colombian site impacted by gold mining.

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Addition of pembrolizumab to neoadjuvant chemotherapy followed by adjuvant pembrolizumab improved outcomes in patients with high-risk, early-stage, triple-negative breast cancer. However, whether the addition of neoadjuvant pembrolizumab to chemotherapy would improve outcomes in high-risk, early-stage, estrogen receptor-positive/human epidermal growth factor receptor 2-negative (ER/HER2) breast cancer remains unclear. We conducted a double-blind, placebo-controlled phase 3 study (KEYNOTE-756) in which patients with previously untreated ER/HER2 grade 3 high-risk invasive breast cancer (T1c-2 (≥2 cm), cN1-2 or T3-4, cN0-2) were randomly assigned (1:1) to neoadjuvant pembrolizumab 200 mg or placebo Q3W given with paclitaxel QW for 12 weeks, followed by four cycles of doxorubicin or epirubicin plus cyclophosphamide Q2W or Q3W.

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Ex situ living plant collections play a crucial role in providing nature-based solutions to twenty-first century global challenges. However, the complex dynamics of these artificial ecosystems are poorly quantified and understood, affecting biodiversity storage, conservation and utilization. To evaluate the management of ex situ plant diversity, we analysed a century of data comprising 2.

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Introduction: Cytomegalovirus (CMV) infection is a frequent complication among hematopoietic stem cell transplant (HSCT) recipients. Data regarding CMV reactivation in children in underdeveloped countries is scarce. This is especially notable considering the increasing utilization of haploidentical-related HSCT with the post-transplant cyclophosphamide platform.

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Nanoparticle-based colorimetric assays for early and rapid screening of the oncogenic HPV variants 16 and 18.

Clin Chim Acta

January 2025

iÓMICAS Research Institute, Pontificia Universidad Javeriana, Calle 17 # 121B - 155, Cali, Valle del Cauca 760031, Colombia; Chemistry and Chemical Engineering Division, California Institute of Technology, Pasadena, CA 91125, United States. Electronic address:

Cervical cancer is predominantly caused by human papillomavirus (HPV), with oncogenic strains HPV 16 and 18 accounting for most cases worldwide. Prompt and precise identification of these high-risk HPV types is essential for enhancing patient outcomes as it enables timely intervention and management. However, the existing HPV detection techniques are time-consuming, expensive, and require highly skilled personnel.

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Introduction: Predominant antibody deficiency is the most frequent group of innate immunity errors, but information about patients’ nutritional status is scarce.

Objectives: To characterize the nutritional status of Colombian patients with predominant antibody deficiencies.

Material And Methods: Material and methods.

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Intra-mesenteric steroids for steroid-refractory graft-versus-host disease in pediatric patients: A safe option.

Biomedica

December 2024

Servicio de Cardiología Pediátrica, Departamento Materno-Infantil, Fundación Valle del Lili, Cali, Colombia; Facultad de Ciencias de la Salud, Universidad Icesi, Cali, Colombia.

Introduction: Graft-versus-host disease is a serious complication after hematopoietic stem cell transplantation and is a major cause of death post-transplantation. Approximately 50% of acute graft-versus-host disease patients do not respond to systemic steroids and their prognosis is poor regardless of the treatment. This study describes our experience with pediatric patients diagnosed with steroid-refractory graft-versus-host disease who received intra-mesenteric steroid treatment.

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Cernunnos/XLF deficiency is a rare, severe combined immunodeficiency, inherited in an autosomal recessive pattern (OMIM number: 611290), related to the NHEJ1 gene. This gene participates in the DNA non-homologous end-joining pathway, repairing double-strand breaks in the DNA of mammalian cells. The clinical features include growth retardation, microcephaly, triangle-shaped face, recurrent infections, fibroblast's excessive sensitivity to gamma-ionizing radiation, and hypogammaglobulinemia; also, low counts of subpopulations of B and T lymphocytes, with normal values of natural-killer cells.

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Recommendations on vaccination in children and adolescents with inborn errors of immunity according to the expanded Colombian immunization program.

Biomedica

December 2024

Departamento de Pediatría, Hospital Universitario del Valle, Cali, Colombia; Departamento de Pediatría, Universidad Libre - Seccional Cali, Cali, Colombia; 6 Departamento de Pediatría, Universidad del Valle, Cali, Colombia; Departamento de Pediatría, Pontificia Universidad Javeriana, Cali, Colombia; Departamento de Pediatría, Universidad San Martín de Cali, Cali, Colombia.

In this manuscript, we carried out an exhaustive analysis of the global recommendations for immunization in inborn errors of immunity patients. We examined the mechanisms of action and types of vaccines, and we described the vaccines included in the Colombian immunization program together with the specific guidelines for immunization in patients with the most frequent inborn errors of immunity in Colombia. These recommendations were adjusted according to the severity and subclassifications of each immunodeficiency, considering variations in the immune response to offer evidencebased recommendations for vaccination in children with these conditions.

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Lymphoproliferation and hyper-IgM as the first manifestation of activated phosphoinositide 3-kinase δ syndrome: A case report.

Biomedica

December 2024

Universidad del Valle, Cali, ColombiaDepartamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disorders, National Institutes of Health, Bethesda, MD, USA.

Activated phosphoinositide 3-kinase δ syndrome is an inborn error of immunity due to mutations within the genes responsible for encoding PI3Kδ subunits. This syndrome results in an excessive activation of the phosphoinositide 3-kinase signaling pathway. Gainof-function mutations in the gene PIK3R1 (encoding p85α, p55α, and p50α) lead to the development of the activated PI3K δ syndrome.

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Introduction: Non-cystic fibrosis bronchiectasis is a complex medical condition with multiple etiologies, characterized by chronic productive cough and radiologic evidence of airway lumen dilation and wall thickening. Associated exacerbations and declining lung function contribute to increasing disability and mortality. There are no data about the prevalence of non-cystic fibrosis bronchiectasis etiologies in the Colombian population.

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First part. A 45-year-old man with severe pneumonia, disseminated cytomegalovirus infection, and agammaglobulinemia.

Biomedica

December 2024

Departamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.

A 45-year-old male patient presented with a persistent cough lasting four months, accompanied by fever and significant weight loss. A chest computed tomography revealed cryptogenic pneumonia, and subsequent investigations identified a positive cytomegalovirus (CMV) viral load in bronchoalveolar lavage. A transbronchial biopsy confirmed intranuclear basophilic inclusions indicative of CMV infection.

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A hidden enemy: Understanding the hemophagocytic syndrome in children under five years of age in a high-complexity institution in southwestern Colombia.

Biomedica

December 2024

Facultad de Ciencias de la Salud, Universidad ICESI, Cali, Colombia,  Departamento de Pediatría, Alergología e Inmunología Pediátrica, Fundación Valle del Lili, Cali, Colombia.

Introduction. Hemophagocytic syndrome is an under-recognized condition with high mortality in the pediatric population. It is characterized by excessive activation of immune cells and cytokine release, leading to persistent inflammation.

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From phenotypic to molecular diagnosis: Insights from a clinical immunology service focused on inborn errors of immunity in Colombia.

Biomedica

December 2024

Departamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.

Introduction: Inborn errors of immunity include a broad spectrum of genetic diseases, in which a specific gene mutation might alter the entire emphasis and approach for an individual patient.

Objective: To conduct a comprehensive analysis of the correlation between phenotypic and molecular diagnoses in patients with confirmed inborn errors of immunity at a tertiary hospital in Cali, Colombia.

Materials And Methods: We conducted a retrospective study in which we sequentially evaluated all available institutional medical records with a diagnosis of inborn errors of immunity.

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Non-cystic fibrosis bronchiectasis in pediatrics: A cohort profile of patients with inborn errors of immunity at a referral center in Cali, Colombia.

Biomedica

December 2024

Facultad de Ciencias de la Salud, Departamento de Medicina, Universidad ICESI, Cali, Colombia; Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cali, Colombia; Servicio de Alergología e Inmunología Pediátrica, Departamento de Pediatría, Fundación Valle del Lili, Cali, Colombia.

Introduction. Inborn errors of immunity are frequently associated with bronchiectasis. The diagnostic performance of these inborn errors has improved because the association of some of these entities with progressive airway damage is better known.

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Haploidentical hematopoietic stem cell transplantation using post-transplant cyclophosphamide in patients with inborn errors of immunity: Experience in a reference center in Colombia.

Biomedica

December 2024

acultad de Ciencias de la Salud, Universidad ICESI, Cali, Colombia; Servicio de Alergología e Inmunología Pediátrica, Departamento Materno-Infantil, Fundación Valle del Lili, Cali, Colombia.

Introduction: Inborn errors of immunity is a diverse group of rare diseases caused by over 400 genetic mutations affecting the immune system and increasing infection susceptibility, autoimmunity, and malignancy. Hematopoietic stem cell transplantation offers a curative option for some inborn errors of immunity, with haploidentical donors providing a viable alternative when identical donors are unavailable.

Objective: To determine survival, usefulness of weekly chimerism monitoring, immune reconstitution, and complications in patients with inborn errors of immunity who underwent haploidentical hematopoietic stem cell transplantation at a reference center in Colombia.

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Red flags to suspect inborn errors of immunity in patients with autoimmune diseases.

Biomedica

December 2024

Grupo de Inmunología Celular y Molecular - InmuBo, Universidad El Bosque, Bogotá, D. C., Colombia; Reumatología, Escuela de Medicina, Universidad Militar Nueva Granada, Bogotá, D. C., Colombia; Grupo de Inmunología, Escuela de Medicina, Universidad Militar Nueva Granada, Bogotá, D. C., Colombia; Departamento de Reumatología e Inmunología, Hospital Militar Central, Bogotá, D. C., Colombia.

Inborn errors of immunity are monogenic disorders that predispose patients to immune dysregulation, autoimmunity, and infection. Some autoimmune diseases, such as autoimmune cytopenias, systemic lupus erythematosus, and inflammatory bowel diseases, are increasingly recognized as phenotypes of inborn errors of immunity. The objective of this article was to identify red flags or clinical/laboratory markers to suspect inborn errors of immunity in patients with autoimmune cytopenias, systemic lupus erythematosus, and inflammatory bowel diseases through a systematic literature review.

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Introduction. Specific antibody deficiency is an innate error of humoral immunity characterized by normal levels of immunoglobulin isotypes, recurrent infections, and a reduced reaction to polysaccharide antigens in vaccines. Objective.

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Allelic and haplotypic HLA analysis in patients with psoriatic arthritis: Low frequency of common alleles.

Biomedica

December 2024

Servicio de Reumatología e Inmunología, Hospital Militar Central, Bogotá, D. C., Colombia; Grupo de Inmunología Clínica Aplicada, Hospital Militar Central, Universidad Militar Nueva Granada, Bogotá, D. C., Colombia; Grupo de Inmunología Celular y Molecular - InmuBo, Universidad El Bosque, Bogotá, D. C., Colombia.

Introduction: Psoriatic arthritis is a complex disease, and human leukocyte antigens (HLA) are key to its development. Latin America and, specifically, Colombia, has scarce data about patients with psoriatic arthritis.

Objective: To describe the genotypic, allelic and haplotypic frequency of HLA alleles in psoriatic arthritis and associate them with clinical variables.

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Introduction: Congenital lymphopenias cause increased susceptibility to infections in children apparently healthy at birth. Earlier detection of these conditions would facilitate prompt treatment, prevent potentially serious disease complications and early deaths, and save healthcare resources.

Objective: To perform a pilot study for neonatal screening of congenital lymphopenias by the quantification of TREC and KREC –T- and B-cell receptor excision circles– in peripheral blood samples from newborns in Medellín, Colombia.

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