Antigènes de surface du virus de l'hépatite B : Questions médicales fréquentes
Nom anglais: Hepatitis B Surface Antigens
Descriptor UI:D006514
Tree Number:D23.050.327.495.500.475
Termes MeSH sélectionnés :
Mendelian Randomization Analysis
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"description": "Comment détecte-t-on les antigènes de surface du virus de l'hépatite B ?\nQuel est le rôle du HBsAg dans le diagnostic ?\nQuand faut-il tester pour le HBsAg ?\nQuels tests complètent le dépistage du HBsAg ?\nUn HBsAg positif signifie-t-il une maladie chronique ?",
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"description": "Comment prévenir l'infection par le virus de l'hépatite B ?\nLa vaccination contre l'hépatite B est-elle efficace ?\nQui devrait se faire vacciner contre l'hépatite B ?\nLes préservatifs protègent-ils contre l'hépatite B ?\nQuelles pratiques doivent être évitées pour prévenir l'hépatite B ?",
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"description": "Quelles sont les complications possibles de l'hépatite B ?\nComment la cirrhose est-elle liée à l'hépatite B ?\nLe cancer du foie est-il une complication de l'hépatite B ?\nQuels signes indiquent une complication hépatique ?\nComment surveiller les complications de l'hépatite B ?",
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"description": "Quels sont les principaux facteurs de risque de l'hépatite B ?\nLes personnes vivant avec un porteur de HBsAg sont-elles à risque ?\nLes voyageurs doivent-ils se faire vacciner contre l'hépatite B ?\nLes travailleurs de la santé sont-ils à risque d'hépatite B ?\nLes personnes ayant des antécédents d'infections sexuellement transmissibles sont-elles à risque ?",
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"@type": "Question",
"name": "Comment détecte-t-on les antigènes de surface du virus de l'hépatite B ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "Par un test sanguin qui recherche la présence de HBsAg."
}
},
{
"@type": "Question",
"name": "Quel est le rôle du HBsAg dans le diagnostic ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Sa présence indique une infection active par le virus de l'hépatite B."
}
},
{
"@type": "Question",
"name": "Quand faut-il tester pour le HBsAg ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Lors de symptômes d'hépatite ou après exposition à un risque d'infection."
}
},
{
"@type": "Question",
"name": "Quels tests complètent le dépistage du HBsAg ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les tests pour les anticorps anti-HBs et anti-HBc sont souvent réalisés."
}
},
{
"@type": "Question",
"name": "Un HBsAg positif signifie-t-il une maladie chronique ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Pas nécessairement, il peut aussi indiquer une infection aiguë ou résolue."
}
},
{
"@type": "Question",
"name": "Quels sont les symptômes de l'hépatite B ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Fatigue, jaunisse, douleurs abdominales, nausées et urine foncée."
}
},
{
"@type": "Question",
"name": "Les porteurs de HBsAg sont-ils toujours symptomatiques ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, beaucoup de porteurs sont asymptomatiques, surtout en phase chronique."
}
},
{
"@type": "Question",
"name": "Comment évoluent les symptômes de l'hépatite B ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Ils peuvent apparaître 1 à 6 mois après l'infection et varier en intensité."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une hépatite B aiguë ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Jaunisse, fatigue intense, douleurs abdominales et perte d'appétit."
}
},
{
"@type": "Question",
"name": "Peut-on avoir des symptômes graves avec HBsAg positif ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une hépatite fulminante peut survenir, nécessitant une attention médicale urgente."
}
},
{
"@type": "Question",
"name": "Comment prévenir l'infection par le virus de l'hépatite B ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Par la vaccination, l'utilisation de préservatifs et l'évitement de l'exposition au sang."
}
},
{
"@type": "Question",
"name": "La vaccination contre l'hépatite B est-elle efficace ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est très efficace et peut prévenir l'infection dans la plupart des cas."
}
},
{
"@type": "Question",
"name": "Qui devrait se faire vacciner contre l'hépatite B ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les nourrissons, les travailleurs de la santé et les personnes à risque élevé."
}
},
{
"@type": "Question",
"name": "Les préservatifs protègent-ils contre l'hépatite B ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils réduisent le risque de transmission lors de rapports sexuels."
}
},
{
"@type": "Question",
"name": "Quelles pratiques doivent être évitées pour prévenir l'hépatite B ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter le partage d'aiguilles, de rasoirs et d'autres objets coupants."
}
},
{
"@type": "Question",
"name": "Quel traitement existe pour l'hépatite B chronique ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antiviraux comme la lamivudine ou l'entécavir sont couramment utilisés."
}
},
{
"@type": "Question",
"name": "Le traitement est-il nécessaire pour tous les porteurs de HBsAg ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, le traitement dépend de l'activité virale et de l'état du foie."
}
},
{
"@type": "Question",
"name": "Quels sont les effets secondaires des traitements antiviraux ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Ils peuvent inclure des nausées, des douleurs abdominales et des éruptions cutanées."
}
},
{
"@type": "Question",
"name": "Peut-on guérir de l'hépatite B ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de guérison définitive, mais le traitement peut contrôler l'infection."
}
},
{
"@type": "Question",
"name": "Quand faut-il envisager une transplantation hépatique ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "En cas d'insuffisance hépatique sévère ou de complications graves liées à l'hépatite B."
}
},
{
"@type": "Question",
"name": "Quelles sont les complications possibles de l'hépatite B ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Cirrhose, cancer du foie et insuffisance hépatique sont des complications graves."
}
},
{
"@type": "Question",
"name": "Comment la cirrhose est-elle liée à l'hépatite B ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'infection chronique peut entraîner une inflammation et des lésions hépatiques, causant la cirrhose."
}
},
{
"@type": "Question",
"name": "Le cancer du foie est-il une complication de l'hépatite B ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les porteurs chroniques de HBsAg ont un risque accru de développer un cancer du foie."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une complication hépatique ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Jaunisse, ascite, confusion mentale et saignements peuvent indiquer des complications."
}
},
{
"@type": "Question",
"name": "Comment surveiller les complications de l'hépatite B ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens réguliers du foie, comme des échographies et des tests sanguins, sont nécessaires."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque de l'hépatite B ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Partage d'aiguilles, rapports sexuels non protégés et exposition au sang infecté."
}
},
{
"@type": "Question",
"name": "Les personnes vivant avec un porteur de HBsAg sont-elles à risque ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles sont à risque accru d'infection par contact avec le sang ou les fluides corporels."
}
},
{
"@type": "Question",
"name": "Les voyageurs doivent-ils se faire vacciner contre l'hépatite B ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, surtout s'ils se rendent dans des zones à forte prévalence de l'hépatite B."
}
},
{
"@type": "Question",
"name": "Les travailleurs de la santé sont-ils à risque d'hépatite B ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, en raison de leur exposition potentielle au sang et aux fluides corporels infectés."
}
},
{
"@type": "Question",
"name": "Les personnes ayant des antécédents d'infections sexuellement transmissibles sont-elles à risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles ont un risque accru d'infection par le virus de l'hépatite B."
}
}
]
}
]
}
Infection with...
Utilizing summary data from genome-wide association studies, we employed a two-sample Mendelian randomization method to investigate the association between 731 immunophenotypes and syphilis. Syphilis ...
Our findings revealed that 33, 36, and 27 immunophenotypes of peripheral blood were associated with syphilis (regardless of disease stage), early syphilis and late syphilis, respectively. Subsequent a...
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This study was conducted to evaluate the potential causality association of SOCS3 methylation with abdominal obesity using Mendelian randomization. A case-control study, including 1064 participants, w...
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The causal relationship between childhood obesity and hypertension in pregnancy remains unclear. To examine the causal association between childhood obesity and hypertension in pregnancy, two-sample M...
Single-nucleotide polymorphisms (SNPs) associated with childhood obesity were obtained from a published genome-wide association study (GWAS) of 13 848 European individuals. Summary-level data for hype...
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A causal effect between genetically predicted childhood obesity and the risk of hypertension in pregnancy was identified. The prevention of hypertension in pregnancy should be promoted in populations ...
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The fixed-effects IVW method indicated that genetic susceptibility to psoriasis was associated with a higher risk of heart failure (HF) [odds ratio (OR) = 1.04; 95% CI, 1.01-1.06, P = 2.72E-03], atria...
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The current study provided genetic evidence on the associations between life-course adiposity and SLD....
The VITAL trial of vitamin D supplementation suggested a possible protective effect for autoimmune diseases but uncertainties remain. We investigated potential causal effects of vitamin D on composite...
We used data from 332,984 participants of the UK Biobank of whom 23,089 had at least one autoimmune disease defined using ICD code and/or self-report. Diseases were further considered in mechanistic s...
Genetically-predicted vitamin D was associated with lower risk of diseases in the autoinflammation group (OR 0.95 per 10 ng/ml increase in 25-hydroxycholecalciferol; 95%CI 0.91-0.99; p = 0.03) but not...
We found genetic evidence to support a causal link between 25-hydroxycholecalciferol concentrations and psoriasis and systemic lupus erythematosus. These results have implications for potential diseas...