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"headline": "Diagnostic sur Cellules de Leydig",
"description": "Comment diagnostiquer une dysfonction des cellules de Leydig ?\nQuels tests sont utilisés pour évaluer les cellules de Leydig ?\nQuels signes indiquent une insuffisance des cellules de Leydig ?\nComment évaluer la fonction des cellules de Leydig ?\nQuel rôle joue l'échographie dans le diagnostic ?",
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"@type": "Question",
"name": "Comment diagnostiquer une dysfonction des cellules de Leydig ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un dosage hormonal et une échographie testiculaire peuvent aider au diagnostic."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour évaluer les cellules de Leydig ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les tests sanguins pour mesurer les niveaux de testostérone et LH sont courants."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une insuffisance des cellules de Leydig ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une baisse de libido, fatigue et troubles de l'érection peuvent indiquer une insuffisance."
}
},
{
"@type": "Question",
"name": "Comment évaluer la fonction des cellules de Leydig ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'évaluation se fait par des tests hormonaux et l'examen clinique des symptômes."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'échographie dans le diagnostic ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'échographie permet de visualiser les testicules et détecter des anomalies structurelles."
}
},
{
"@type": "Question",
"name": "Quels symptômes sont associés à une hyperplasie des cellules de Leydig ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une augmentation de la testostérone peut causer l'acné, l'hypertrichose et l'agressivité."
}
},
{
"@type": "Question",
"name": "Comment reconnaître une carence en testostérone ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes incluent fatigue, dépression, perte de masse musculaire et libido réduite."
}
},
{
"@type": "Question",
"name": "Quels signes cliniques indiquent une tumeur des cellules de Leydig ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des douleurs testiculaires, une masse palpable et des changements hormonaux peuvent survenir."
}
},
{
"@type": "Question",
"name": "Quels symptômes peuvent indiquer un déséquilibre hormonal ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des troubles de l'érection, des sautes d'humeur et une prise de poids peuvent être présents."
}
},
{
"@type": "Question",
"name": "Comment les symptômes varient-ils selon l'âge ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes de dysfonction peuvent s'aggraver avec l'âge, affectant la libido et l'énergie."
}
},
{
"@type": "Question",
"name": "Comment prévenir les troubles des cellules de Leydig ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un mode de vie sain, incluant une alimentation équilibrée et de l'exercice, peut aider."
}
},
{
"@type": "Question",
"name": "Quels examens réguliers sont recommandés ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens médicaux réguliers et des bilans hormonaux peuvent aider à détecter des problèmes tôt."
}
},
{
"@type": "Question",
"name": "Comment éviter les facteurs de risque liés à l'environnement ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Réduire l'exposition aux toxines environnementales et aux perturbateurs endocriniens est crucial."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'alimentation dans la santé des cellules de Leydig ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation riche en nutriments essentiels peut soutenir la fonction hormonale et cellulaire."
}
},
{
"@type": "Question",
"name": "Comment le stress affecte-t-il les cellules de Leydig ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le stress chronique peut perturber l'équilibre hormonal et affecter la fonction des cellules de Leydig."
}
},
{
"@type": "Question",
"name": "Quels traitements existent pour l'insuffisance des cellules de Leydig ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "La thérapie de remplacement de la testostérone est couramment utilisée pour traiter l'insuffisance."
}
},
{
"@type": "Question",
"name": "Comment traiter une hyperplasie des cellules de Leydig ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le traitement peut inclure des médicaments anti-androgènes ou une intervention chirurgicale."
}
},
{
"@type": "Question",
"name": "Quels sont les effets secondaires de la thérapie de testostérone ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les effets secondaires peuvent inclure l'acné, la rétention d'eau et des troubles du sommeil."
}
},
{
"@type": "Question",
"name": "Quand envisager une intervention chirurgicale ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une chirurgie peut être envisagée en cas de tumeur des cellules de Leydig ou d'anomalies structurelles."
}
},
{
"@type": "Question",
"name": "Quels médicaments sont utilisés pour traiter les troubles hormonaux ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments comme les inhibiteurs de l'aromatase peuvent être prescrits pour équilibrer les hormones."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec une tumeur des cellules de Leydig ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent la propagation du cancer et des déséquilibres hormonaux graves."
}
},
{
"@type": "Question",
"name": "Quels risques sont associés à une thérapie de testostérone prolongée ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une thérapie prolongée peut augmenter le risque de maladies cardiovasculaires et de cancer de la prostate."
}
},
{
"@type": "Question",
"name": "Comment une insuffisance des cellules de Leydig affecte-t-elle la fertilité ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle peut entraîner une oligospermie ou une azoospermie, réduisant ainsi la fertilité masculine."
}
},
{
"@type": "Question",
"name": "Quelles sont les conséquences d'un déséquilibre hormonal ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les conséquences peuvent inclure des troubles de l'humeur, des problèmes de libido et des dysfonctionnements érectiles."
}
},
{
"@type": "Question",
"name": "Quels effets à long terme peut avoir une hyperplasie des cellules de Leydig ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "À long terme, cela peut entraîner des problèmes métaboliques et des troubles endocriniens."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque de tumeurs des cellules de Leydig ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'âge, des antécédents familiaux et des anomalies testiculaires sont des facteurs de risque connus."
}
},
{
"@type": "Question",
"name": "Comment l'exposition à des produits chimiques affecte-t-elle les cellules de Leydig ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'exposition à des perturbateurs endocriniens peut altérer la fonction des cellules de Leydig."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'obésité dans la santé des cellules de Leydig ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'obésité peut entraîner des déséquilibres hormonaux et affecter la production de testostérone."
}
},
{
"@type": "Question",
"name": "Quels comportements augmentent le risque de dysfonction des cellules de Leydig ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le tabagisme, l'alcoolisme et un mode de vie sédentaire sont des comportements à risque."
}
},
{
"@type": "Question",
"name": "Comment le stress chronique influence-t-il les cellules de Leydig ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le stress chronique peut perturber l'axe hypothalamo-hypophyso-testiculaire, affectant la fonction."
}
}
]
}
]
}
Department of Anesthesiology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. Electronic address: r_ge@yahoo.com.
Center of Reproductive Medicine, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325003, China.
Zhejiang Provincial Key Laboratory of Anesthesiology, Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Zhejiang Provincial Key Laboratory of Anesthesiology, Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Department of Pharmacology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Laboratory for Chronobiology and Aging, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Dositeja Obradovica Sq 2, 21000, Novi Sad, Serbia.
Laboratory for Reproductive Endocrinology and Signaling, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Dositeja Obradovica Sq 2, 21000, Novi Sad, Serbia.
Laboratory for Chronobiology and Aging, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Dositeja Obradovica Sq 2, 21000, Novi Sad, Serbia. tatjana.kostic@dbe.uns.ac.rs.
Laboratory for Reproductive Endocrinology and Signaling, Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Dositeja Obradovica Sq 2, 21000, Novi Sad, Serbia. tatjana.kostic@dbe.uns.ac.rs.
Zhejiang Provincial Key Laboratory of Anesthesiology, Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Zhejiang Provincial Key Laboratory of Anesthesiology, Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Department of Anesthesiology, Perioperative Medicine, Zhejiang Province Key Lab of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
The liver is a major store of glycogen and is essential in maintaining systemic glucose homeostasis. In healthy individuals, glycogen synthesis and breakdown in the liver are tightly regulated. Abnorm...
Wilson, W. A. Spectrophotometric methods for the study of eukaryotic glycogen metabolism. Journal of Visualized Experiments. (174), e63046 (2021). Wang, J. J. et al. A non-degradative extraction metho...
Owing to its role in glucose homeostasis, liver glycogen concentration ([LGly]) can be a marker of altered metabolism seen in disorders that impact the health of children. However, there is a paucity ...
The main objectives were to quantify the depletion of [LGly] after overnight fasting and the subsequent response to feeding....
In a randomly assigned, open-label, incomplete block design study, healthy, normal-weight children (8-12 y) attended 2 evening visits, each separated by ≥5 d and directly followed by a morning visit. ...
Twenty-four children including females and males (13F:11M) completed the study [9.9 (1.1) y, BMI percentile 45.7 (25.9)]. [LGly] decreased from 377.9 (141.3) to 277.3 (107.4) mmol/L overnight; depleti...
After overnight fasting, [LGly] decreased by 22.9 (25.1)%, and [LGly] incremental net area under the curve over 4 h was higher after subsequent consumption of 15.5 g and 31 g carbohydrates, compared t...
Seizures often originate in epileptogenic foci. Between seizures (interictally), these foci and some of the surrounding tissue often show low signals with...
Glycogen is the major glucose reserve in eukaryotes, and defects in glycogen metabolism and structure lead to disease. Glycogenesis involves interaction of glycogenin (GN) with glycogen synthase (GS),...
The human vaginal microbiota is frequently dominated by lactobacilli and transition to a more diverse community of anaerobic microbes is associated with health risks. Glycogen released by lysed epithe...
It has been reported that glycogen in Escherichia coli has two structural states, that is, fragility and stability, which alters dynamically. However, molecular mechanisms behind the structural altera...
Autophagy is an essential cellular process involving degradation of superfluous or defective macromolecules and organelles as a form of homeostatic recycling. Initially proposed to be a "bulk" degrada...
The delicate alternation between glycogen synthesis and degradation is governed by the interplay between key regulatory enzymes altering the activity of glycogen synthase and phosphorylase. Among thes...
Glycogen branching enzymes (GBEs) have been used to generate new branches in starches for producing slowly digestible starches. The aim of this study was to expand the knowledge about the mode of acti...