Search results for "Surge"
showing 10 items of 18826 documents
Adherence to a healthy lifestyle and multiple sclerosis: a case–control study from the UK Biobank
2020
Background: Multiple sclerosis (MS) is a common and disabling condition. The importance of healthy lifestyle for this disease is poorly explored. Objective: To test whether adherence to healthier lifestyle patterns is associated with a lower presence of multiple sclerosis (MS). Methods: By using a case–control design, we investigated the combined association of four healthy lifestyle-related factors (no current smoking, healthy diet, exercising regularly, body mass index <30 kg/m2) and the prevalence of MS. A logistic regression analysis, adjusted for potential confounders, was used and data reported as odds ratios (ORs) with their 95% confidence intervals (CIs). Results: 728 participant…
Piriform cortex alterations in the Ts65Dn model for down syndrome
2020
The piriform cortex is involved in olfactory information processing, that is altered in Down Syndrome. Moreover, piriform cortex has a crucial involvement in epilepsy generation and is one of the first regions affected in Alzheimer's Disease, both maladies being prevalent among Down Syndrome individuals. In this work, we studied the alterations in neuronal morphology, synaptology and structural plasticity in the piriform cortex of the Ts65Dn mouse model, which is the most used model for the study of this syndrome and mimics some of their alterations. We have observed that Ts65Dn piriform cortex displays: a reduction in dendritic arborisation, a higher density of inhibitory synapses (GAD67),…
Oligodendrocytes Support Neuronal Glutamatergic Transmission via Expression of Glutamine Synthetase.
2019
Summary: Glutamate has been implicated in a wide range of brain pathologies and is thought to be metabolized via the astrocyte-specific enzyme glutamine synthetase (GS). We show here that oligodendrocytes, the myelinating glia of the central nervous system, also express high levels of GS in caudal regions like the midbrain and the spinal cord. Selective removal of oligodendrocyte GS in mice led to reduced brain glutamate and glutamine levels and impaired glutamatergic synaptic transmission without disrupting myelination. Furthermore, animals lacking oligodendrocyte GS displayed deficits in cocaine-induced locomotor sensitization, a behavior that is dependent on glutamatergic signaling in th…
ABO blood group A transferase and its codon 69 substitution enzymes synthesize FORS1 antigen of FORS blood group system
2019
AbstractHuman histo-blood group A transferase (AT) catalyzes the biosynthesis of oligosaccharide A antigen important in blood transfusion and cell/tissue/organ transplantation. This enzyme may synthesize Forssman antigen (FORS1) of the FORS blood group system when exon 3 or 4 of the AT mRNA is deleted and/or the LeuGlyGly tripeptide at codons 266–268 of AT is replaced by GlyGlyAla. The Met69Ser/Thr substitutions also confer weak Forssman glycolipid synthase (FS) activity. In this study, we prepared the human AT derivative constructs containing any of the 20 amino acids at codon 69 with and without the GlyGlyAla substitution, transfected DNA to newly generated COS1(B3GALNT1 + A4GALT) cells e…
Structures of collagen IV globular domains: insight into associated pathologies, folding and network assembly
2018
15 páginas, 6 figuras, 1 tabla.
Efficacy of interleukin 10 gene hydrofection in pig liver vascular isolated ‘in vivo’ by surgical procedure with interest in liver transplantation
2019
AIM Liver transplantation is the only curative strategy for final stage liver diseases. Despite the great advances achieved during the last 20 years, the recipient immune response after transplantation is not entirely controlled. This results in high rates of acute cell rejection and, approximately, 10% of early mortality. Therapeutic treatment could be improved by efficiently transfecting genes that encode natural immunosuppressant proteins, employing safe procedures that could be transferred to clinical setting. In this sense, interleukin 10 plays a central role in immune tolerance response by acting at different levels. METHODS hIL10 gene was hydrofected by retrograde hydrodynamic inject…
Efficacy of hydrodynamic interleukin 10 gene transfer in human liver segments with interest in transplantation.
2016
Different diseases lead, during their advanced stages, to chronic or acute liver failure, whose unique treatment consists in organ transplantation. The success of intervention is limited by host immune response and graft rejection. The use of immunosuppressant drugs generally improve organ transplantation, but they cannot completely solve the problem. Also, their management is delicate, especially during the early stages of treatment. Thus, new tools to set an efficient modulation of immune response are required. The local expression of interleukin (IL) 10 protein in transplanted livers mediated by hydrodynamic gene transfer could improve the organ acceptance by the host because it presents…
Consensus recommendation for a diagnostic guideline for acid sphingomyelinase deficiency
2017
Disclaimer: This diagnostic guideline is intended as an educational resource and represents the opinions of the authors, and is not representative of recommendations or policy of the American College of Medical Genetics and Genomics (ACMG). The information should be considered a consensus based on expert opinion, as more comprehensive levels of evidence were not available in the literature in all cases. Background: Acid sphingomyelinase deficiency (ASMD) is a rare, progressive, and often fatal lysosomal storage disease. The underlying metabolic defect is deficiency of the enzyme acid sphingomyelinase that results in progressive accumulation of sphingomyelin in target tissues. ASMD manifests…
Estudio de los mecanismos fisiopatológicos asociados al inicio y curso de los trastornos del neurodesarrollo en prematuros (estudio PeriSTRESS-PremTE…
2021
Resumen Introduccion Los factores genetico-ambientales y las vias fisiopatologicas que condicionan la evolucion de forma diferencial a un trastorno de neurodesarrollo (TN) en la poblacion de grandes prematuros (GP) y prematuros extremos (PE) siguen siendo en gran medida desconocidos. Tampoco disponemos a fecha de hoy de marcadores biologicos potencialmente predictivos de TN en estos ninos. El proyecto PeriSTRESS-PremTEA tiene como objetivo estudiar de forma prospectiva, en GP/PE: (i) la aparicion/curso de rasgos y diagnostico TN hasta los 6 anos de vida, (ii) factores de riesgo de aparicion de TN desde la etapa prenatal hasta los 6 anos, (ii) perfiles de biomarcadores en orina predictivos d…