questionsmedicales.fr
Structures virales
Virion
Virion : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"headline": "Diagnostic sur Virion",
"description": "Comment identifier un virion dans un échantillon ?\nQuels tests sont utilisés pour détecter les virions ?\nLes virions peuvent-ils être visualisés au microscope ?\nQuelle est la méthode de culture des virions ?\nLes tests sérologiques détectent-ils les virions ?",
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"description": "Quels traitements sont efficaces contre les virions ?\nLes antibiotiques sont-ils efficaces contre les virions ?\nComment les vaccins agissent-ils contre les virions ?\nLes traitements symptomatiques sont-ils utiles ?\nLes traitements antiviraux sont-ils toujours efficaces ?",
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"headline": "Facteurs de risque sur Virion",
"description": "Quels sont les facteurs de risque d'infection virale ?\nLe stress affecte-t-il le risque d'infection virale ?\nLes maladies chroniques augmentent-elles le risque d'infection ?\nL'environnement joue-t-il un rôle dans le risque viral ?\nLes habitudes alimentaires influencent-elles le risque viral ?",
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"name": "Comment identifier un virion dans un échantillon ?",
"position": 1,
"acceptedAnswer": {
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"text": "L'identification se fait par microscopie électronique ou tests PCR."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour détecter les virions ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les tests PCR, les cultures virales et les tests sérologiques sont courants."
}
},
{
"@type": "Question",
"name": "Les virions peuvent-ils être visualisés au microscope ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les virions peuvent être visualisés au microscope électronique."
}
},
{
"@type": "Question",
"name": "Quelle est la méthode de culture des virions ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les virions sont cultivés dans des cellules hôtes appropriées en laboratoire."
}
},
{
"@type": "Question",
"name": "Les tests sérologiques détectent-ils les virions ?",
"position": 5,
"acceptedAnswer": {
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"text": "Non, ils détectent les anticorps contre les virions, pas les virions eux-mêmes."
}
},
{
"@type": "Question",
"name": "Quels symptômes indiquent une infection virale ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Fièvre, fatigue, douleurs musculaires et symptômes respiratoires sont fréquents."
}
},
{
"@type": "Question",
"name": "Les virions causent-ils toujours des symptômes ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, certains virions peuvent être asymptomatiques chez l'hôte."
}
},
{
"@type": "Question",
"name": "Comment les symptômes varient-ils selon le virion ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes dépendent du type de virus et de l'hôte infecté."
}
},
{
"@type": "Question",
"name": "Les symptômes d'une infection virale sont-ils immédiats ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, il peut y avoir une période d'incubation avant l'apparition des symptômes."
}
},
{
"@type": "Question",
"name": "Les virions peuvent-ils provoquer des symptômes neurologiques ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certains virions, comme ceux de la grippe, peuvent affecter le système nerveux."
}
},
{
"@type": "Question",
"name": "Comment prévenir les infections virales ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Se laver les mains, éviter les contacts étroits et se faire vacciner sont essentiels."
}
},
{
"@type": "Question",
"name": "Les masques protègent-ils contre les virions ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les masques réduisent la transmission des virions par voie respiratoire."
}
},
{
"@type": "Question",
"name": "Les vaccins sont-ils efficaces contre tous les virions ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, chaque vaccin cible des virions spécifiques et ne protège pas contre tous."
}
},
{
"@type": "Question",
"name": "L'hygiène personnelle aide-t-elle à prévenir les infections ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une bonne hygiène personnelle réduit le risque d'infections virales."
}
},
{
"@type": "Question",
"name": "Les voyages augmentent-ils le risque d'infection virale ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les voyages peuvent exposer à de nouveaux virions et augmenter le risque d'infection."
}
},
{
"@type": "Question",
"name": "Quels traitements sont efficaces contre les virions ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antiviraux, comme l'oseltamivir, sont utilisés pour traiter certaines infections virales."
}
},
{
"@type": "Question",
"name": "Les antibiotiques sont-ils efficaces contre les virions ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, les antibiotiques ne sont pas efficaces contre les infections virales."
}
},
{
"@type": "Question",
"name": "Comment les vaccins agissent-ils contre les virions ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les vaccins stimulent le système immunitaire à reconnaître et combattre les virions."
}
},
{
"@type": "Question",
"name": "Les traitements symptomatiques sont-ils utiles ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils aident à soulager les symptômes, mais ne traitent pas l'infection virale."
}
},
{
"@type": "Question",
"name": "Les traitements antiviraux sont-ils toujours efficaces ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, leur efficacité dépend du type de virus et de la résistance virale."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir après une infection virale ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications comme la pneumonie, la déshydratation ou des infections secondaires peuvent survenir."
}
},
{
"@type": "Question",
"name": "Les virions peuvent-ils causer des maladies chroniques ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certains virions, comme le VIH, peuvent entraîner des maladies chroniques."
}
},
{
"@type": "Question",
"name": "Comment les complications sont-elles gérées ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications sont gérées par des traitements symptomatiques et des soins médicaux appropriés."
}
},
{
"@type": "Question",
"name": "Les complications varient-elles selon le virion ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, chaque virion peut entraîner des complications différentes selon l'hôte."
}
},
{
"@type": "Question",
"name": "Les enfants sont-ils plus à risque de complications ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les enfants peuvent être plus vulnérables aux complications des infections virales."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque d'infection virale ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'âge, le système immunitaire affaibli et l'exposition à des porteurs."
}
},
{
"@type": "Question",
"name": "Le stress affecte-t-il le risque d'infection virale ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress peut affaiblir le système immunitaire et augmenter le risque d'infection."
}
},
{
"@type": "Question",
"name": "Les maladies chroniques augmentent-elles le risque d'infection ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les maladies chroniques peuvent affaiblir l'immunité et augmenter le risque d'infection virale."
}
},
{
"@type": "Question",
"name": "L'environnement joue-t-il un rôle dans le risque viral ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des environnements surpeuplés ou insalubres augmentent le risque d'infections virales."
}
},
{
"@type": "Question",
"name": "Les habitudes alimentaires influencent-elles le risque viral ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation déséquilibrée peut affaiblir le système immunitaire et augmenter le risque."
}
}
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Due to its very early introduction, cow's milk is one of the first foods that can cause adverse reactions in human beings. Lactose intolerance (LI) and cow's milk allergy (CMA) are the most common adv...
The health consequences of lactose intolerance remain unclear. We studied the association of lactose intolerance with growth in children....
In this prospective case-control study, we compared Caucasian prepubertal children with lactose intolerance (LI) [...
We found no difference in height velocity SDS between the LI and control groups [SDS difference (95% CI): 0.52 (-1.86 to 2.90)]. In addition, we found a significant reduction in the clinical score of ...
The LI group exhibited no difference in height velocity compared with the control group. Nonetheless, due to the small sample size, the results on the anthropometric profile of the LI group require ca...
About 70∼100% of the Asian adult population is lactase non-persistent (LNP). The literature shows that many individuals with the LNP-genotype can consume ≤12g of lactose without experiencing gastroint...
This study aimed to assess the effects of daily consumption of incremental lactose doses on microbiota composition and function, and intolerance symptoms....
Twenty-five healthy adults of Asian origin, carrying the LNP-genotype were included in this 12-week before-and-after intervention trial. Participants consumed gradually increasing lactose doses from 3...
A significant increase from 5.5±7.6% to 10.4±9.6% was observed in Bifidobacterium relative abundance after the intervention (p=0.009), accompanied by a two-fold increase (570±269U/g; p<0.001) in fecal...
Increased levels of Bifidobacterium indicate an adaptation of the gut microbiota upon repetitive consumption of incremental doses of lactose, which was well-tolerated as demonstrated by reduced expire...
The trial is registered at the International Clinical Trials Registry Platform: NL9516 The effect of dietary lactose in lactase non-persistent individuals on gut microbiota....
Lactose intolerance (LI) is a widespread health issue affecting almost 70% of the world population. This study evaluates the potential prebiotic benefits of konjac glucomannan (KGM) and konjac oligoga...
Cow's milk (CM) is a healthy food consumed worldwide by individuals of all ages. Unfortunately, "lactase-deficient" individuals cannot digest milk's main carbohydrate, lactose, depriving themselves of...
Lactose intolerance and coeliac disease are common clinical nutrient malabsorption disorders, with an unclear pathogenesis and limited therapeutic options. It is widely believed that the gut microbiot...
This study utilized the genome-wide association study database to investigate the association between gut microbiota and lactose intolerance and coeliac disease using Mendelian randomization (MR). The...
By employing the inverse variance weighted method, we identified that family...
This study provides novel insights into exploring the role of gut microbiota in lactose intolerance and coeliac disease; however, further experiments investigations are required to elucidate the speci...
Chronic diarrhea is a common cause of mortality and morbidity in captive rhesus macaques (Macaca mulatta). The exact etiology of chronic diarrhea in macaques remains unidentified. The occurrence of di...
The microbiome signature of macaques with intermittent chronic diarrhea showed a significant increase in lactate producing bacteria e.g. lactobacilli, and an increase in fermenters of lactate and succ...
A lactose intolerance mechanism is suggested in these animals by the bloom of Lactobacillus in the presence of lactose resulting in an overproduction of intermediate fermentation products likely led t...
There is no evidence that a positive breath test is a good predictor of success of a carbohydrate-restricted diet....
To investigate whether patients in whom lactose or fructose intolerance (LIT, FIT) is diagnosed by symptom measurement using the adult Carbohydrate Perception Questionnaire (aCPQ) respond to diet....
Consecutive patients referred for evaluation of lactose or fructose intolerance underwent hydrogen/methane breath testing (malabsorption test) and symptom measurement with aCPQ (intolerance test) befo...
Forty-one patients were included (23 LIT, 8 FIT, 10 LIT+FIT). Eight patients had negative breath tests (no malabsorption). After two-months of diet, the overall VAS and the individual symptoms decreas...
This uncontrolled and unblinded study suggests that patients with carbohydrate intolerance diagnosed by aCPQ benefit significantly from diet, independent of the presence of malabsorption. Controlled s...
β-Galactosidase supplementation plays an important role in the life of people with lactose intolerance. However, these formulations are rendered ineffective by the low pH and pepsin in the stomach and...
Celiac disease (CD) is an autoimmune disorder triggered by an abnormal immunological response to gluten ingestion and is associated with deregulated expression of cellular microRNAs (miRNAs) of the gu...
To identify altered extracellular vesicle miRNAs from plasma among CD patients on GFD (n=34), lactose intolerant individuals on restrictive diet (n=14) and controls (n=23), and to predict biological p...
Five different small RNA samples of each group were pooled twice and then screened by new-generation sequencing. Four miRNAs were selected to be quantified by RT-qPCR in the entire sample....
The levels of four miRNAs - miR-99b-3p, miR-197-3p, miR-223-3p, and miR-374b-5p - differed between CD patients and controls (...
These miRNAs may have targets that affect cell death, cell communication, adhesion, and inflammation modulation pathways. Hence, altered miRNA levels could be associated with CD-related aspects and gu...