3,506 results match your criteria: "Servicio de Cirugía Experimental; Hospitales Universitarios La Paz[Affiliation]"

Decoding the Contribution of IAPP Amyloid Aggregation to Beta Cell Dysfunction: A Systematic Review and Epistemic Meta-Analysis of Type 1 Diabetes.

Int J Mol Sci

January 2025

Unidad de Investigación en Enfermedades Metabólicas, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City 06720, Mexico.

Diabetes Mellitus Type 1 (DM1) is an autoimmune disease characterized by the destruction of beta cells in the pancreas. Although amyloid formation has been well-studied in Diabetes Mellitus Type 2 (DM2), its role in DM1 remains unclear. Understanding how islet amyloid polypeptide (IAPP) contributes to beta cell dysfunction and death in DM1 could provide critical insights into disease mechanisms and pave the way for novel diagnostic and therapeutic strategies.

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[Efficacy of single-dose preoperative tranexamic acid to prevent blood loss in total hip and knee joint replacement].

Acta Ortop Mex

January 2025

Servicio de Traumatología y Ortopedia. Instituto de Seguridad y Servicios Sociales de los Trabajadores al Servicio de los Poderes del Estado de Puebla (ISSSTEP). Puebla, México.

Introduction: transfusion-related complications are a major concern for surgeons performing total hip and knee arthroplasty (THA and TKA). Several strategies have been implemented to reduce transfusion rates, including the use of tranexamic acid (TXA), whose optimal dosage remains a matter of debate.

Objective: to evaluate the efficacy and safety of a single pre-surgical dose of TXA in reducing blood loss in THA and TKA.

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Background And Objectives: The Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines classify rhinitis as "intermittent" or "persistent" and "mild" or "moderate-severe". To assess ARIA classes in a real-world study in terms of phenotypic differences and their association with asthma.

Methods: We performed a cross-sectional real-world study based on users of the MASK-air® app who reported data for at least 3 different months.

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In chronic lymphocytic leukemia, the reliability of next-generation sequencing (NGS) to detect variants ≤10% allelic frequency (low-VAF) is debated. We tested the ability to detect 23 such variants in 41 different laboratories using their NGS method of choice. The sensitivity was 85.

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Despite significant progress in understanding the factors influencing cognitive function in Parkinson's disease (PD), there is a notable gap in data representation for the Latinx population. This study aims to evaluate the contributors to and disparities in cognitive performance among Latinx patients with PD. A retrospective analysis was conducted based on cross-sectional data encompassing demographic, environmental, motor, and non-motor disease characteristics from the Latin American Research Consortium on the Genetics of PD (LARGE-PD) and the Parkinson's Progression Markers Initiative (PPMI) cohorts.

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EhVps35, a retromer component, is involved in the recycling of the EhADH and Gal/GalNac virulent proteins of .

Front Parasitol

March 2024

Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional [CINVESTAV-Instituto Politécnico Nacional (IPN)], Mexico City, Mexico.

The retromer is a highly conserved eukaryotic complex formed by the cargo selective complex (CSC) and the sorting nexin (SNX) dimer subcomplexes. Its function is protein recycling and recovery from the endosomes to conduct the target molecules to the trans-Golgi network or the plasma membrane. The protozoan responsible for human amoebiasis, , exhibits an active membrane movement and voracious phagocytosis, events in which the retromer may be fully involved.

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Complex Karyotype in a Pediatric Patient with Double-Hit BCL6 High-Grade B-Cell Lymphoma.

Pediatr Blood Cancer

March 2025

Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina.

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Article Synopsis
  • The EN ISO 15189:2022 standard updates regulations for medical laboratories, replacing previous versions and aiming for better quality and competence.
  • The revision focuses on aligning with ISO/IEC 17025:2017, enhancing patient safety, and providing clearer guidelines while minimizing new requirements.
  • A guidance document from the EFLM Committee has been produced to help laboratories and accreditation bodies understand and implement these changes effectively.
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Idiopathic pulmonary fibrosis (IPF) is a progressive, late-onset disease marked by lung scarring and irreversible loss of lung function. Genetic factors significantly contribute to both familial and sporadic cases, yet there are scarce evidence-based studies highlighting the benefits of integrating genetics into the management of IPF patients. In this study, we performed whole-exome sequencing and telomere length (TL) measurements on IPF patients and their relatives.

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Evaluating MicroRNAs as diagnostic tools for lymph node metastasis in breast cancer: Findings from a systematic review and meta-analysis.

Crit Rev Oncol Hematol

December 2024

GENYO, Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, Liquid biopsy and Cancer Interception Group, PTS Granada, Avenida de la Ilustración 114, Granada 18016, Spain; Biomedical Research Institute IBS-Granada, Avda. de Madrid, 15, Granada 18012, Spain; Unidad de Patología Mamaria, Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario San Cecilio, Granada, Spain; Integral Oncology Division, Virgen de las Nieves University Hospital, Av. Dr. Olóriz 16, Granada 18012, Spain; Molecular Pathology Lab. Pathological Anatomy Unit,  University Hospital Virgen de las Nieves, Granada 18016, Spain. Electronic address:

Lymph node metastasis (LNM) significantly affects the prognosis and clinical management of breast cancer (BC) patients. This systematic review and meta-analysis aim to identify microRNAs (miRNAs) associated with LNM in BC and evaluate their potential diagnostic and prognostic value. Following PRISMA guidelines, a comprehensive literature search was conducted in PubMed, Web of Science, and SCOPUS databases, to assess the role of miRNAs in LNM BC.

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Persistence, severity and reactivity thresholds in fish allergic patients sensitized to parvalbumin.

J Allergy Clin Immunol Pract

December 2024

Servicio de Alergia, Hospital Clínico San Carlos, IdISSC, Madrid, Spain; Facultad de Medicina, Universidad Complutense, Madrid, Spain. Electronic address:

Background: Fish allergy affects children and adults worldwide and there are transient and persistent phenotypes.

Objective: We aimed to analyze persistence, severity and reactivity thresholds in challenge-confirmed fish allergic patients sensitized to parvalbumin.

Methods: Patients 12-65 years-old reporting immediate reactions to fish, with fish skin prick test ≥5 mm and IgE to cod and carp β-parvalbumins ≥0.

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Exploring Music-Based Interventions for Executive Functioning and Emotional Well-Being in Stroke Rehabilitation: A Scoping Review.

NeuroSci

November 2024

Instituto de Neurociencias (INEU) Fleni Consejo Nacional de Investigaciones en Científicas y Técnicas (CONICET), Buenos Aires C1060AAF, Argentina.

Purpose: Stroke is one of the leading causes of disability with life-long implications requiring assessment and treatment of several functional domains. This review identifies the results from research into music-based interventions (MBIs), including music therapy (MT), for executive functions (EFs) and emotional well-being (EWB) in adults with stroke and highlights opportunities for clinical practice and future research.

Methods: APA PsycInfo (EBSCOhost), and CINAHL (EBSCOhost) were searched, in addition to grey literature.

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Plant-plant interactions are major determinants of the dynamics of terrestrial ecosystems. There is a long tradition in the study of these interactions, their mechanisms and their consequences using experimental, observational and theoretical approaches. Empirical studies overwhelmingly focus at the level of species pairs or small sets of species.

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Melatonin stabilizes atherosclerotic plaques: an association that should be clinically exploited.

Front Med (Lausanne)

December 2024

CENECON, Faculty of Medical Sciences, Universidad de Buenos Aires, and Pontificia Universidad Catolica Argentina, Buenos Aires, Argentina.

Atherosclerosis is the underlying factor in the premature death of millions of humans annually. The cause of death is often a result of the rupture of an atherosclerotic plaque followed by the discharge of the associated molecular debris into the vessel lumen which occludes the artery leading to ischemia of downstream tissue and to morbidity or mortality of the individual. This is most serious when it occurs in the heart (heart attack) or brain (stroke).

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Comparison of radiographic imaging quality/accuracy using photostimulable phosphor plates and metal oxide semiconductor receptors.

J Dent Educ

December 2024

Instituto de Odontoestomatología, Escuela de Odontología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile.

Aim: To compare thequality and accuracy of radiographic images obtained by dentistry students from a Chilean university using photostimulable phosphor plates (PSP) and complementary metal oxide semiconductor (CMOS) receptors.

Materials And Methods: An experimental study was carried out in which 31 dental students used PSP and CMOS receptors to acquire radiographic images with the aid of a phantom. The time required to generate a radiograph was recorded.

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Background And Purpose: Psoriasis is a chronic, immune-mediated inflammatory skin disease that significantly impacts patients' quality of life. The integration of telepharmacy has the potential to enhance patient care by providing flexible and personalized pharmaceutical follow-up. This study (TELEPROM Psoriasis) evaluates a telepharmacy model for evaluating electronic Patient-Reported outcomes (ePROMs) for individuals with moderate to severe plaque psoriasis in Spain with biological treatment.

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Iron-Oxide Nanoparticles Embedded in 3D-Printed PLA/HA Scaffolds for Magnetic Hyperthermia Therapy: An Experimental-Numerical Analysis of Thermal Behavior.

Materials (Basel)

November 2024

Grupo Novos Materiais, CINTECX (Centro de Investigación en Tecnoloxía, Enerxía e Procesos Industriais), Universidade de Vigo, 36310 Vigo, Spain.

Hyperthermia is nowadays intensively investigated as a promising strategy to improve the therapeutic efficacy against different types of cancer and resistant infections. In particular, the remote generation of localized hyperthermia by magnetic field through iron-oxide nanoparticles (IONPs) offers good thermal conductivity in a controlled area. The incorporation of these IONPs in 3D-printed scaffolds designed for bone tissue regeneration has been scarcely addressed in the literature.

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Background/objectives: Obesity is a growing public health challenge due to its high prevalence and associated comorbidities. Bariatric surgery is the most effective treatment for achieving sustained weight reduction when more conservative treatments have failed. This study evaluates the impact of a nurse-led telecare follow-up programme in the immediate postoperative period for patients who have undergone bariatric surgery.

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Late Bone Marrow Mononuclear Cell Transplantation in Rats with Sciatic Nerve Crush: Analysis of a Potential Therapeutic Time Window.

Int J Mol Sci

November 2024

Cátedra de Química Biológica Patológica, Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires C1113AAD, Argentina.

After peripheral nerve injury, axon and myelin regeneration are key events for optimal clinical improvements. We have previously shown that early bone marrow mononuclear cell (BMMC) transplantation exerts beneficial effects on myelin regeneration. In the present study, we analyze whether there is a temporal window in which BMMCs migrate more efficiently to damaged nerves while still retaining their positive effects.

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Background: There is a broad consensus among orthopedic surgeons in the treatment of Gartland type I supracondylar humerus fractures (conservative) and Gartland type III (surgical) fractures, but there is controversy regarding the treatment of choice for Gartland type II fractures. The aim was to analyze the existing current evidence on the choice of surgical or conservative treatment of Gartland type II supracondylar humerus fractures.

Methods: A systematic review was carried out following the PRISMA guidelines.

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Background And Aims: Several studies have supported the role of innate immune system as a key factor in the sterile inflammation underlying the pathophysiology of atherosclerosis in mice. However, its involvement in humans remains unclear. This study aimed to explore the association between neutrophil count, and the intima-media thickness of common carotid arteries (IMT-CC), as well as the potential impact of long-term dietary interventions on these associations.

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Background & Aims: Expression of P21, encoded by the gene, has been associated with fibrosis progression in steatotic liver disease (SLD); however, the underlying mechanisms remain unknown. In the present study, we investigated the function of CDKN1A in SLD.

Methods: expression levels were evaluated in different patient cohorts with SLD, fibrosis, and advanced chronic liver disease (ACLD).

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