Titre : Virulence

Virulence : Questions médicales fréquentes

Termes MeSH sélectionnés :

Eye Neoplasms
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bactéries hautement virulentes ?\nLes symptômes varient-ils selon le pathogène ?\nComment les symptômes évoluent-ils avec la virulence ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Eye+Neoplasms&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Virulence", "description": "Comment prévenir les infections virulentes ?\nLes mesures d'hygiène réduisent-elles la virulence ?\nQuel rôle joue la vaccination dans la virulence ?\nLes campagnes de sensibilisation sont-elles efficaces ?\nComment le contrôle des infections aide-t-il à prévenir la virulence ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Eye+Neoplasms&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Virulence", "description": "Quels traitements sont efficaces contre les infections virulentes ?\nLa résistance aux antibiotiques affecte-t-elle la virulence ?\nComment la virulence influence-t-elle le choix du traitement ?\nLes vaccins peuvent-ils réduire la virulence ?\nQuels sont les défis dans le traitement des infections virulentes ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Eye+Neoplasms&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Virulence", "description": "Quelles complications peuvent survenir avec une virulence élevée ?\nLa virulence peut-elle entraîner des complications à long terme ?\nComment gérer les complications liées à la virulence ?\nLes complications varient-elles selon le pathogène ?\nQuels facteurs aggravent les complications virulentes ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Eye+Neoplasms&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Virulence", "description": "Quels sont les principaux facteurs de risque de virulence ?\nL'immunodépression augmente-t-elle la virulence ?\nComment l'environnement influence-t-il la virulence ?\nLes habitudes de vie peuvent-elles affecter la virulence ?\nLes voyages augmentent-ils le risque de virulence ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Eye+Neoplasms&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer la virulence d'un pathogène ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "La virulence peut être évaluée par des tests de culture, des modèles animaux et des analyses génétiques." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour diagnostiquer une infection virulente ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des cultures microbiologiques, des tests PCR et des sérologies sont couramment utilisés." } }, { "@type": "Question", "name": "La virulence peut-elle être mesurée quantitativement ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des indices comme le LD50 (dose létale) permettent de quantifier la virulence." } }, { "@type": "Question", "name": "Quels signes cliniques indiquent une virulence élevée ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence élevée se manifeste par des symptômes graves, une progression rapide de la maladie." } }, { "@type": "Question", "name": "Comment les tests génétiques aident-ils au diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les tests génétiques identifient des gènes de virulence spécifiques, facilitant le diagnostic." } }, { "@type": "Question", "name": "Quels sont les symptômes d'une infection virulente ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes varient, mais incluent fièvre, douleur, inflammation et fatigue intense." } }, { "@type": "Question", "name": "La virulence influence-t-elle la gravité des symptômes ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une virulence élevée entraîne souvent des symptômes plus graves et des complications." } }, { "@type": "Question", "name": "Quels symptômes sont associés à des bactéries hautement virulentes ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes comme septicémie, choc toxique et défaillance multi-organes peuvent survenir." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon le pathogène ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque pathogène a un profil symptomatique distinct en fonction de sa virulence." } }, { "@type": "Question", "name": "Comment les symptômes évoluent-ils avec la virulence ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence accrue peut entraîner une progression rapide et des symptômes plus sévères." } }, { "@type": "Question", "name": "Comment prévenir les infections virulentes ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La prévention inclut l'hygiène, la vaccination et l'éducation sur les modes de transmission." } }, { "@type": "Question", "name": "Les mesures d'hygiène réduisent-elles la virulence ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une bonne hygiène diminue la transmission et donc l'impact de la virulence." } }, { "@type": "Question", "name": "Quel rôle joue la vaccination dans la virulence ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "La vaccination prépare le système immunitaire, réduisant ainsi la virulence des infections." } }, { "@type": "Question", "name": "Les campagnes de sensibilisation sont-elles efficaces ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles augmentent la connaissance des risques et des mesures préventives contre la virulence." } }, { "@type": "Question", "name": "Comment le contrôle des infections aide-t-il à prévenir la virulence ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Le contrôle des infections limite la propagation des agents pathogènes virulents dans la population." } }, { "@type": "Question", "name": "Quels traitements sont efficaces contre les infections virulentes ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les antibiotiques, antiviraux et traitements symptomatiques sont utilisés selon le pathogène." } }, { "@type": "Question", "name": "La résistance aux antibiotiques affecte-t-elle la virulence ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la résistance peut augmenter la virulence en rendant les infections plus difficiles à traiter." } }, { "@type": "Question", "name": "Comment la virulence influence-t-elle le choix du traitement ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence élevée nécessite souvent des traitements plus agressifs et une surveillance étroite." } }, { "@type": "Question", "name": "Les vaccins peuvent-ils réduire la virulence ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les vaccins peuvent diminuer la virulence en préparant le système immunitaire à réagir." } }, { "@type": "Question", "name": "Quels sont les défis dans le traitement des infections virulentes ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Les défis incluent la résistance aux médicaments, la virulence variable et les co-infections." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une virulence élevée ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme la septicémie, l'insuffisance organique et la mort peuvent survenir." } }, { "@type": "Question", "name": "La virulence peut-elle entraîner des complications à long terme ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines infections virulentes peuvent causer des séquelles chroniques et des maladies persistantes." } }, { "@type": "Question", "name": "Comment gérer les complications liées à la virulence ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "La gestion inclut un traitement rapide, un suivi médical et des soins de soutien appropriés." } }, { "@type": "Question", "name": "Les complications varient-elles selon le pathogène ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque pathogène peut entraîner des complications spécifiques en fonction de sa virulence." } }, { "@type": "Question", "name": "Quels facteurs aggravent les complications virulentes ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "L'âge, les comorbidités et l'immunodépression peuvent aggraver les complications virulentes." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque de virulence ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'âge, l'état immunitaire, les maladies chroniques et l'exposition environnementale." } }, { "@type": "Question", "name": "L'immunodépression augmente-t-elle la virulence ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les personnes immunodéprimées sont plus susceptibles de développer des infections virulentes." } }, { "@type": "Question", "name": "Comment l'environnement influence-t-il la virulence ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Des conditions environnementales comme l'hygiène et la densité de population affectent la virulence." } }, { "@type": "Question", "name": "Les habitudes de vie peuvent-elles affecter la virulence ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des habitudes comme le tabagisme et l'alcoolisme peuvent augmenter le risque d'infections virulentes." } }, { "@type": "Question", "name": "Les voyages augmentent-ils le risque de virulence ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les voyages peuvent exposer à des agents pathogènes virulents non présents localement." } } ] } ] }

Sources (9890 au total)

Vitreous metastasis from cutaneous melanoma: diagnosis and management.

To report the clinical findings, treatments, and outcomes in a series of patients with vitreous metastasis from cutaneous melanoma.... This single-center, retrospective, interventional case series included patients with biopsy-confirmed vitreous metastasis from cutaneous melanoma diagnosed between 1997 and 2020. Standard 23- or 25-ga... Five eyes of five patients with unilateral vitreous metastasis from cutaneous melanoma were identified. The median age at diagnosis was 84 (range, 37-88) years. The median follow-up after ophthalmic d... Vitreous metastasis from cutaneous melanoma can present as a diffuse infiltration of pigmented or non-pigmented cells into the vitreous and may be misdiagnosed as uveitis. Diagnostic pars plana vitrec...

Long-term outcomes of combined intravitreal methotrexate and systemic high-dose methotrexate therapy in vitreoretinal lymphoma.

The optimal treatment for vitreoretinal lymphoma (VRL) remains a challenge, as central nervous system (CNS) relapse occurs frequently, leading to the worst impact on survival. We previously proposed c... We conducted a retrospective cohort study on patients with VRL at a tertiary referral center between 2003 and 2018.... Thirty-two patients were included, of whom 23 had primary VRL (PVRL) and nine had concurrent intraocular and CNS diseases. The treatment was well tolerated. Twenty-six (81.3%) patients achieved comple... This study confirms good efficacy and acceptable toxicities of the combination approach. However, incorporation of further intensive consolidation strategies into the treatment protocol to effectively...

Expressions of Progesterone Receptor of Orbital Meningiomas in Indonesia.

Visual disturbances that can heal after a complete resection of orbital meningiomas are only about 2.9%. Grading and expression of the progesterone receptor (PR) in orbital meningiomas, according to W... This cross-sectional observational analysis observed 44 orbital meningioma in Cicendo Eye Hospital Bandung and Hasan Sadikin Hospital between 2017-2020. We performed of mRNA PR with RT-qPCR technique ... Relative expression of mRNA PR in meningioma orbita grade I to grade III decreased significantly the expression of relative mRNA PR at grade I, II, III of 21.69±44.35, 20.39±26.30 and 1.25±0.85, with ... mRNA PR expression is viable for prognostic value, predicting recurrence and implementing more effective management of subsequent therapy, it must be combined with other markers to determine the natur...

Brachytherapy as a curative option for ocular surface squamous neoplasia.

Ocular surface squamous neoplasia (OSSN) has a high recurrence rate if only treated with surgical excision, especially in cases with positive excision margins. To reduce recurrence, we used brachyther... Nine eyes with isolated OSSN lesions were included in the study. Adjunctive brachytherapy with Ruthenium... The average age of patients at the time of presentation was 66 ± 12 years. Follow-up time was 52.8 ± 44.6 months. The maximal tumour base varied between 3 and 28 mm. SCC was confirmed by histology in ... Brachytherapy with Ruthenium...

Anterior segment optical coherence tomography characteristics of conjunctival papilloma as compared to papilliform ocular surface squamous neoplasia.

To describe the anterior segment optical coherence tomography (AS-OCT) appearance of conjunctival papilloma and identify differentiating features from papilliform ocular surface squamous neoplasia (OS... A retrospective chart review of individuals clinically diagnosed with conjunctival papilloma (n = 10) or papilliform OSSN (n = 10) based on slit lamp features. Data on demographics, tumour characteris... Overall, the majority of individuals in both groups were white males. OSSN lesions were more likely to involve the limbus (80% vs.10%, p = 0.005) and the bulbar conjunctiva (100% vs. 20%, p < 0.001) c... AS-OCT shows differentiating features between papilloma and OSSN with an overhanging edge as a distinctive AS-OCT feature of papilloma....

Watchful waiting is an acceptable treatment option for asymptomatic primary ocular adnexal mucosa-associated lymphoid tissue lymphoma: A retrospective study.

Primary ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphoma (POAML) is the most common subtype of indolent ocular adnexal lymphomas. Although radiotherapy (RT) is the standard of care for... We here retrospectively analyzed 75 patients who were diagnosed with POAML between 2008 and 2019 in the institutions of the Kyoto Clinical Hematology Study Group.... Commonly involved sites were conjunctiva (42.7%), orbit (36.0%), and lacrimal gland (12.0%), and most patients (92.0%) presented with Ann Arbor stage IE disease. The treatment strategy was selected at... Our results demonstrate WW may be an acceptable treatment option for POAML, especially for asymptomatic patients....

[Clinical procedures for intraocular lymphomas].

The classification of intraocular lymphomas is based on their anatomical location. They are divided into uveal lymphomas with involvement of the choroid, ciliary body or iris and vitreoretinal lymphom... A summary of the various types of intraocular lymphoma in terms of clinical features, diagnostics, treatment and prognosis is given as well as recommendations for follow-up care.... A selective literature search was carried out on the subject of intraocular lymphomas using PubMed and Google Scholar.... Intraocular lymphomas affect different structures, so that the symptoms can also be very different. The diagnostic spectrum ranges from typical ocular examination methods to sample biopsies with subse... Many different options are available for the diagnostics and treatment of intraocular lymphomas, which require close interdisciplinary cooperation. The further developments in the field of molecular p...

Magnetic resonance diffusion-weighted imaging in lacrimal gland lymphoma versus inflammation: A comparative study.

To determine the role of diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) in differentiating the inflammatory process and malignant lymphoma of the lacrimal gland.... A retrospective analysis of all subjects who underwent lacrimal gland biopsy and magnetic resonance (MR) imaging with DWI sequences during a 10-year period at the Sheba Medical Center, Israel. The lac... Twenty-eight patients were included, with 19 females (68%) with a mean ± SD age of 48.1 ± 25.7 years. The right orbit was involved in 14 cases (50%) and the left in 13 (46%); one patient (4%) had bila... Restricted diffusion on MR imaging can serve as a diagnostic tool in the differentiation between inflammatory processes of the lacrimal gland and lymphoma....