Titre : Hydrogels

Hydrogels : Questions médicales fréquentes

Termes MeSH sélectionnés :

Leukocyte L1 Antigen Complex
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{ "@type": "Question", "name": "Comment diagnostiquer une infection de plaie traitée avec un hydrogel ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'infection se diagnostique par l'examen clinique et des cultures de prélèvements." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer l'efficacité des hydrogels ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de viscosité et d'absorption d'eau sont couramment utilisés." } }, { "@type": "Question", "name": "Comment évaluer la biocompatibilité des hydrogels ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "La biocompatibilité est évaluée par des tests in vitro et in vivo sur des cellules." } }, { "@type": "Question", "name": "Quels signes indiquent une mauvaise réaction aux hydrogels ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Rougeur, gonflement ou douleur persistante peuvent indiquer une réaction indésirable." } }, { "@type": "Question", "name": "Comment détecter une allergie aux composants des hydrogels ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des tests cutanés ou des analyses sanguines peuvent aider à diagnostiquer une allergie." } }, { "@type": "Question", "name": "Quels symptômes peuvent survenir avec l'utilisation d'hydrogels ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Irritation, démangeaisons ou rougeurs peuvent apparaître au site d'application." } }, { "@type": "Question", "name": "Les hydrogels peuvent-ils provoquer des douleurs ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des douleurs peuvent survenir si l'hydrogel provoque une réaction inflammatoire." } }, { "@type": "Question", "name": "Comment reconnaître une infection liée à un hydrogel ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Signes d'infection incluent chaleur, rougeur, écoulement purulent et douleur accrue." } }, { "@type": "Question", "name": "Les hydrogels peuvent-ils causer des démangeaisons ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des démangeaisons peuvent survenir en raison d'une réaction allergique ou d'irritation." } }, { "@type": "Question", "name": "Quels effets secondaires sont associés aux hydrogels ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Les effets secondaires peuvent inclure irritation, allergie ou infection locale." } }, { "@type": "Question", "name": "Comment prévenir les infections lors de l'utilisation d'hydrogels ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Assurez-vous que la plaie est propre et appliquez l'hydrogel dans des conditions stériles." } }, { "@type": "Question", "name": "Quelles précautions prendre avec les hydrogels ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Évitez d'utiliser des hydrogels périmés et suivez les instructions d'application." } }, { "@type": "Question", "name": "Comment stocker les hydrogels pour éviter leur dégradation ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Conservez-les dans un endroit frais et sec, à l'abri de la lumière directe." } }, { "@type": "Question", "name": "Les hydrogels nécessitent-ils une surveillance après application ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, surveillez régulièrement la plaie pour détecter tout signe d'infection ou d'irritation." } }, { "@type": "Question", "name": "Comment éviter les réactions allergiques aux hydrogels ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Effectuez un test cutané préalable si vous avez des antécédents d'allergies." } }, { "@type": "Question", "name": "Comment les hydrogels sont-ils utilisés dans le traitement des brûlures ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Ils sont appliqués pour hydrater la plaie et favoriser la cicatrisation tout en apaisant." } }, { "@type": "Question", "name": "Les hydrogels sont-ils efficaces pour les ulcères ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils aident à maintenir un environnement humide, favorisant la guérison des ulcères." } }, { "@type": "Question", "name": "Peut-on utiliser des hydrogels pour les soins post-opératoires ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils sont souvent utilisés pour protéger les incisions chirurgicales et favoriser la guérison." } }, { "@type": "Question", "name": "Comment les hydrogels aident-ils à traiter les plaies chroniques ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Ils maintiennent l'hydratation et réduisent la douleur, ce qui favorise la cicatrisation." } }, { "@type": "Question", "name": "Les hydrogels peuvent-ils être utilisés pour les greffes de peau ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent être utilisés pour protéger les greffes et maintenir l'humidité." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec les hydrogels ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent infections, réactions allergiques et irritation cutanée." } }, { "@type": "Question", "name": "Les hydrogels peuvent-ils causer des cicatrices ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "En général, ils favorisent la cicatrisation, mais une mauvaise utilisation peut entraîner des cicatrices." } }, { "@type": "Question", "name": "Comment gérer une infection causée par un hydrogel ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Consultez un professionnel de santé pour un traitement approprié, souvent avec des antibiotiques." } }, { "@type": "Question", "name": "Les hydrogels peuvent-ils provoquer des brûlures ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une application incorrecte ou prolongée peut entraîner des brûlures cutanées." } }, { "@type": "Question", "name": "Quels sont les risques d'utilisation prolongée des hydrogels ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "L'utilisation prolongée peut entraîner une macération de la peau et des infections." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque d'infection avec les hydrogels ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent une mauvaise hygiène, des plaies profondes et un système immunitaire affaibli." } }, { "@type": "Question", "name": "Les personnes âgées sont-elles plus à risque avec les hydrogels ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles peuvent avoir une peau plus fragile et un système immunitaire affaibli." } }, { "@type": "Question", "name": "Les allergies aux composants des hydrogels sont-elles fréquentes ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les allergies sont rares, mais peuvent survenir, surtout chez les personnes sensibles." } }, { "@type": "Question", "name": "Quels antécédents médicaux augmentent les risques avec les hydrogels ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Les antécédents de dermatite ou d'allergies cutanées peuvent augmenter les risques." } }, { "@type": "Question", "name": "Les diabétiques ont-ils des risques accrus avec les hydrogels ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les diabétiques peuvent avoir une cicatrisation plus lente et un risque accru d'infection." } } ] } ] }

Sources (10000 au total)

Advances in desensitization for human leukocyte antigen incompatible kidney transplantation.

Human leukocyte antigen (HLA) sensitization is a major barrier to kidney transplantation induced by exposure to alloantigens through pregnancy, blood product exposure and previous transplantations. De... Newer desensitization strategies such as imlifidase [immunoglobulin G (IgG) endopeptidase] rapidly inactivates IgG molecules and creates an "antibody-free zone", representing an important advancement ... Use of these agents alone or in combination will likely improve the efficacy and durability of desensitization therapies, improving access to kidney transplantation for immunologically disadvantaged p...

Eligibility for Human Leukocyte Antigen-Based Therapeutics by Race and Ethnicity.

The development of therapeutics for patients who are positive for specific human leukocyte antigen (HLA) subtypes evokes the question of whether certain racial and ethnic groups are more or less likel... To determine whether racial and ethnic inequities were present with regard to trial eligibility in trials investigating a therapeutic restricted to patients with specific HLA subtypes.... This cross-sectional study included all clinical trials registered in ClinicalTrials.gov through March 18, 2022, that investigated an interventional study of a therapeutic strategy and restricted part... The type of therapeutics used in trials, the condition under study, the HLA subtypes used, and the likelihood of being enrolled in such a trial according to race and ethnicity.... Of 2135 trials identified, 263 met inclusion criteria. Overall, the estimated likelihood of being eligible for an HLA-based trial was 50.3%. Individuals of African American descent had the lowest like... The findings of this cross-sectional study suggest that enrollment restrictions for clinical trials investigating novel HLA therapeutics may be associated with racial and ethnic inequities with regard...

Human Leukocyte Antigen-DQ Genotyping in Pediatric Celiac Disease.

The purpose of this study was to determine the pattern of human leukocyte antigen (HLA)-DQ genotype in children diagnosed with celiac disease (CD) (biopsy proven), and to compare this with a control g... This cross-sectional comparative observational study included 26 controls and 52 patients diagnosed with CD who presented at Sir Padampat Mother and Child Health Institute, Jaipur, from May, 2017 to O... HLA DQ2/DQ8 genotypes were significantly more common in CD (present in 100.0% cases) than in controls (23.1%) in Northern India (Rajasthan). When HLA DQ2.5 and DQ8 were present together, individuals h... HLA DQ2/DQ8 genotypes are strongly associated with pediatric CD patients in northern India. These genotypes and their combinations may be associated with different clinical presentations of CD, and ma...

How to measure human leukocyte antigen-specific B cells.

The implementation of highly sensitive immune assays measuring anti-human leukocyte antigen (HLA) antibodies has modified alloimmune risk stratification and diagnosis of rejection. Nonetheless, anti-H... Functional assays involving ex vivo polyclonal activation of mBC have been refined to allow the detection of HLA-specific mBC capable of producing anti-HLA Abs, using different and complementary detec... Technological refinements have allowed the development of tests detecting HLA-specific mBC. Further evaluation of these assays in clinical trials, both for immune risk stratification and to assess tre...

Heart Transplant Human Leukocyte Antigen Matching in the Modern Era.

Although numerous reports have studied the consequences of human leukocyte antigen (HLA) mismatching in renal transplantation, there are limited and outdated data analyzing this association in thoraci... We performed a retrospective analysis of adult patients after heart transplant by using the United Network for Organ Sharing database from January 2005-July 2021. Total HLA and HLA-A, HLA-B and HLA-DR... A total of 33,060 patients were included in this study. Recipients with a high degree of HLA mismatching had increased incidences of acute organ rejection. There were no significant differences in mor... Our analysis suggests that HLA mismatch is not a significant predictor of survival in the modern era. Overall, the clinical implications of this study provide reassuring data for the continued use of ...

Human leukocyte antigen variants associate with BNT162b2 mRNA vaccine response.

Since the beginning of the anti-COVID-19 vaccination campaign, it has become evident that vaccinated subjects exhibit considerable inter-individual variability in the response to the vaccine that coul... We carried out a genome-wide association study to investigate the genetic determinants of the antibody response to the Pfizer-BioNTech vaccine in an Italian cohort of 1351 subjects recruited in three ... Our study confirms the involvement of the HLA locus and shows significant associations with variants in HLA-A, HLA-DQA1, and HLA-DQB1 genes. In particular, the HLA-A*03:01 allele is the most significa... These results support the hypothesis that HLA genes modulate the response to Pfizer-BioNTech vaccine and highlight the need for genetic studies in diverse populations and for functional studies aimed ...

Association study of human leukocyte antigen variants and idiopathic pulmonary fibrosis.

Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial pneumonia marked by progressive lung fibrosis and a poor prognosis. Recent studies have highlighted the potential role of infection in the... We performed a meta-analysis of associations of the HLA region with IPF risk in individuals of European ancestry from seven independent case-control studies of IPF (comprising 5159 cases and 27 459 co... The meta-analysis of all seven studies identified four significant independent single nucleotide polymorphisms associated with IPF risk. However, none met the posterior probability for replication cri... Variation in the HLA region was not consistently associated with risk in studies of IPF. However, this does not preclude the possibility that other genomic regions linked to the immune response may be...

Loss of Human Leukocyte Antigen and Immune Escape in Head and Neck Cancer.

Cancer cells evade recognition by the immune system to survive. Head and neck squamous cell carcinoma (HNSCC) is characterized by high levels of immune infiltration and mutation-associated neoantigens... Cross-sectional integrated clinical and genomic analysis.... Whole-exome sequencing and RNA-sequencing data from 522 tumors profiled in The Cancer Genome Atlas HNSCC cohort were analyzed and integrated with secondary analyses including immune cell deconvolution... HLA LOH was a prevalent event that was identified in 53% of HNSCC tumors; in many cases, more than one class I HLA gene was targeted for LOH. HLA LOH was more common in advanced-stage tumors. Tumors w... HLA LOH is one of the most prevalent genetic alterations in HNSCC, and is associated with a cold immune microenvironment, suggesting that HLA LOH is a means of immune evasion. It may have value as a p... 3 Laryngoscope, 2023....