questionsmedicales.fr
Acides aminés, peptides et protéines
Protéines
Hémoprotéines
Cytochromes
Cytochrome P-450 enzyme system
Steroid hydroxylases
Cholesterol 7-alpha-hydroxylase
Cholesterol 7-alpha-hydroxylase : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Cholestérol
Acides biliaires
Jaunisse
Troubles digestifs
Biomarqueurs
Acides biliaires
Symptômes
5
Douleurs abdominales
Nausées
Vésicule biliaire
Calculs biliaires
Troubles digestifs
Diarrhée
Prévention
5
Prévention
Mode de vie sain
Exercice
Métabolisme lipidique
Bilan de santé
Cholestérol
Alimentation
Graisses saturées
Traitements
5
Chirurgie
Vésicule biliaire
Médicaments
Acides biliaires
Complications
5
Maladies hépatiques
Troubles digestifs
Maladies cardiovasculaires
Cholestérol
Calculs biliaires
Inflammation
Troubles hépatiques
Stéatose
Facteurs de risque
5
Facteurs de risque
Obésité
Hérédité
Troubles lipidiques
Tabagisme
Santé cardiovasculaire
Stress
Métabolisme lipidique
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"@type": "Question",
"name": "Comment diagnostiquer une déficience en Cholesterol 7-alpha-hydroxylase ?",
"position": 1,
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"text": "Des tests sanguins pour mesurer les niveaux d'acides biliaires et de cholestérol sont effectués."
}
},
{
"@type": "Question",
"name": "Quels tests génétiques sont utilisés pour cette enzyme ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests de séquençage génétique peuvent identifier des mutations dans le gène CYP7A1."
}
},
{
"@type": "Question",
"name": "Quels symptômes peuvent indiquer un problème avec cette enzyme ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme la jaunisse ou des troubles digestifs peuvent survenir."
}
},
{
"@type": "Question",
"name": "Quelle imagerie peut aider au diagnostic ?",
"position": 4,
"acceptedAnswer": {
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"text": "L'échographie abdominale peut être utilisée pour évaluer la santé du foie et de la vésicule biliaire."
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},
{
"@type": "Question",
"name": "Y a-t-il des biomarqueurs spécifiques à surveiller ?",
"position": 5,
"acceptedAnswer": {
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}
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{
"@type": "Question",
"name": "Quels sont les symptômes d'une déficience en cette enzyme ?",
"position": 6,
"acceptedAnswer": {
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"text": "Les symptômes incluent des douleurs abdominales, des nausées et des troubles de la digestion."
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{
"@type": "Question",
"name": "La jaunisse est-elle un symptôme courant ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la jaunisse peut se manifester en raison d'une accumulation de bilirubine."
}
},
{
"@type": "Question",
"name": "Peut-on avoir des problèmes de cholestérol ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une déficience peut entraîner des niveaux anormaux de cholestérol dans le sang."
}
},
{
"@type": "Question",
"name": "Y a-t-il des symptômes liés à la vésicule biliaire ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des douleurs ou des calculs biliaires peuvent survenir en raison d'une mauvaise digestion des graisses."
}
},
{
"@type": "Question",
"name": "Les troubles de la digestion sont-ils fréquents ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles digestifs comme des ballonnements et des diarrhées peuvent se produire."
}
},
{
"@type": "Question",
"name": "Comment prévenir les problèmes liés à cette enzyme ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation équilibrée et un mode de vie sain peuvent aider à prévenir les problèmes."
}
},
{
"@type": "Question",
"name": "Le contrôle du cholestérol est-il important ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, surveiller et contrôler les niveaux de cholestérol est crucial pour la santé."
}
},
{
"@type": "Question",
"name": "L'exercice physique aide-t-il à prévenir ces problèmes ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier peut améliorer le métabolisme lipidique et la santé globale."
}
},
{
"@type": "Question",
"name": "Les bilans de santé réguliers sont-ils recommandés ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des bilans de santé réguliers aident à détecter précocement les problèmes de cholestérol."
}
},
{
"@type": "Question",
"name": "Faut-il éviter certains aliments ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il est conseillé de limiter les graisses saturées et les sucres ajoutés."
}
},
{
"@type": "Question",
"name": "Quels traitements sont disponibles pour cette condition ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements incluent des modifications alimentaires et des médicaments pour réguler le cholestérol."
}
},
{
"@type": "Question",
"name": "Les suppléments de cholestérol sont-ils recommandés ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, les suppléments de cholestérol ne sont généralement pas recommandés sans avis médical."
}
},
{
"@type": "Question",
"name": "La chirurgie est-elle une option de traitement ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Dans certains cas, une chirurgie pour retirer la vésicule biliaire peut être nécessaire."
}
},
{
"@type": "Question",
"name": "Les médicaments peuvent-ils aider à réguler les acides biliaires ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des médicaments comme les résines échangeuses d'ions peuvent aider à réguler les acides biliaires."
}
},
{
"@type": "Question",
"name": "Des changements alimentaires sont-ils nécessaires ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation riche en fibres et faible en graisses saturées est souvent recommandée."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec cette enzyme ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications comme des maladies hépatiques ou des troubles digestifs peuvent survenir."
}
},
{
"@type": "Question",
"name": "Les maladies cardiovasculaires sont-elles un risque ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un déséquilibre du cholestérol peut augmenter le risque de maladies cardiovasculaires."
}
},
{
"@type": "Question",
"name": "Des problèmes de vésicule biliaire peuvent-ils se développer ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des calculs biliaires et des inflammations peuvent se développer en raison de déséquilibres."
}
},
{
"@type": "Question",
"name": "Y a-t-il un risque de diabète ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des niveaux anormaux de cholestérol peuvent être associés à un risque accru de diabète."
}
},
{
"@type": "Question",
"name": "Les troubles hépatiques sont-ils possibles ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles hépatiques comme la stéatose peuvent survenir en cas de déséquilibre."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque pour cette enzyme ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent une alimentation riche en graisses, l'obésité et le manque d'exercice."
}
},
{
"@type": "Question",
"name": "L'hérédité joue-t-elle un rôle ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de troubles lipidiques augmentent le risque."
}
},
{
"@type": "Question",
"name": "Le tabagisme est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme peut aggraver les problèmes de cholestérol et de santé cardiovasculaire."
}
},
{
"@type": "Question",
"name": "Le stress a-t-il un impact sur cette enzyme ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress chronique peut affecter le métabolisme lipidique et la santé globale."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il le risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le risque de troubles lipidiques augmente avec l'âge."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 22/04/2025
Contenu vérifié selon les dernières recommandations médicales
8 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
6 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
5 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
4 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Takeda California Inc., 9625 Towne Centre Drive, San Diego, California 92121, United States.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
3 publications dans cette catégorie
Affiliations :
Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China. Electronic address: baijuan@njau.edu.cn.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Neuroscience Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Institute of Biochemistry, Saarland University, Campus, Building B2.2, 66123, Saarbrücken, Germany.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Institute of Biochemistry, Saarland University, Campus, Building B2.2, 66123, Saarbrücken, Germany.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
2 publications dans cette catégorie
Affiliations :
Research, Takeda Pharmaceutical Company Ltd., 26-1 Muraoka-Higashi, 2-Chome, Fujisawa, Kanagawa 251-8555, Japan.
Publications dans "Cholesterol 7-alpha-hydroxylase" :
Advances in the field of intestinal failure continue to reduce mortality rates of this complex syndrome. Over the last 20 months (January 2021- October 2022), several important papers were published t...
New reports on the epidemiology of intestinal failure have shown that short bowel syndrome (SBS) remains the most common cause of intestinal failure worldwide in both adults and children. Advances in ...
There have been significant advances in the nutritional and medical approaches in intestinal failure, including advances in PN, use of GLP-2 analogs, and key developments in the medical management of ...
Pediatric chronic intestinal failure (PIF) is a rare and heterogeneous condition characterized by the inability of the patient's intestine to adequately absorb the required fluids and/or nutrients for...
Medical and surgical care for children with intestinal failure has evolved so that long-term life expectancy is common even in the setting of the shortest bowel lengths. The long-term administration o...
There is little data on gut microbiome and various factors that lead to dysbiosis in pediatric intestinal failure (PIF). This study aimed to characterize gut microbiome in PIF and determine factors th...
This is a single-center, prospective cohort study of children with PIF followed at our intestinal rehabilitation program. Stool samples were collected longitudinally at regular intervals over a 1-year...
The final analysis included 74 specimens from 12 subjects. Scheduled prophylactic antibiotics, presence of central line associated bloodstream infection (CLABSI) at the time of specimen collection, us...
Gut microbial diversity in PIF subjects is influenced by various factors involved in the rehabilitation process including medications, percent calories received parenterally, CLABSI events, the degree...
The incidence and significance of pneumatosis intestinalis (PI) in children with a diagnosis of intestinal failure is not well understood. The aim of this study was to identify clinical and anatomical...
We performed a retrospective review of all children with a diagnosis of intestinal failure at Children's Hospital Colorado between January 2019 and April 2022. Patients were stratified and compared ba...
There were 111 patients identified with a diagnosis of intestinal failure and 30.6% (34) developed at least 1 instance of PI. There were no differences in etiology of intestinal failure or anatomy bet...
The development of PI in children with intestinal failure is likely a benign finding. It is associated with enteral feeding and may be due to increased intestinal stress....
Chronic intestinal failure (CIF) is a heterogeneous disease that affects pediatric and adult populations worldwide and requires complex multidisciplinary management. In recent years, many advances in ...
A review of the literature in PubMed from 1980 to 2024 was carried out using the following terms: intestinal failure, CIF, home parenteral nutrition, short bowel syndrome, chronic intestinal pseudo-ob...
There is a difference between what is recommended in the guidelines and consensus and what is applied in real life. Most of the world's countries are not able to offer all of the steps needed to treat...
Intestinal failure-associated liver disease (IFALD) is a common hepatobiliary complication resulting from long-term parenteral nutrition (PN) in patients with intestinal failure. The spectrum of IFALD...
Oral intake in infants with intestinal failure (IF) may be limited due to intolerance or feeding difficulties. Guidelines for the introduction of semisolid or solid complementary foods (CFs) to infant...
The American Society for Parenteral and Enteral Nutriton (ASPEN) Pediatric Intestinal Failure Section Registered Dietitian/Nutritionist (RDN) working group designed a 10-question online cloud-based su...
Twenty-six surveys were completed. Thirteen (50%) RDNs recommend introduction of CF between 4 and 6 months of age. Nineteen (76%) recommend adding pureed foods to gastrostomy tube feedings. Seventeen ...
Institutional practices related to the introduction of CF to infants with IF vary. Similarities with first food choice and foods to avoid were observed. Evidenced-based practice guidelines for the int...
Short bowel syndrome (SBS) is a chronic disease whose natural history requires a changing array of management strategies over time. Chief amongst these is the chronic use of parenteral nutrition (PN) ...
Intestinal failure in neonatal and pediatric populations can be debilitating for patients and difficult to manage for clinicians. Management strategies include referral to an intestinal rehabilitation...