Titre : Lyophilisation

Lyophilisation : Questions médicales fréquentes

Termes MeSH sélectionnés :

Single-Cell Gene Expression Analysis
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"name": "Diagnostic", "headline": "Diagnostic sur Lyophilisation", "description": "Comment savoir si un produit est lyophilisé ?\nQuels tests pour vérifier la qualité d'un produit lyophilisé ?", "url": "https://questionsmedicales.fr/mesh/D005612?mesh_terms=Single-Cell+Gene+Expression+Analysis&page=4#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Lyophilisation", "description": "Quels sont les signes d'un produit mal lyophilisé ?\nY a-t-il des effets secondaires de la lyophilisation ?", "url": "https://questionsmedicales.fr/mesh/D005612?mesh_terms=Single-Cell+Gene+Expression+Analysis&page=4#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Lyophilisation", "description": "Comment éviter la dégradation des produits lyophilisés ?\nQuelles conditions sont idéales pour stocker des produits lyophilisés ?", "url": 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?\nQuels produits sont plus sensibles à la lyophilisation ?", "url": "https://questionsmedicales.fr/mesh/D005612?mesh_terms=Single-Cell+Gene+Expression+Analysis&page=4#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment savoir si un produit est lyophilisé ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un produit lyophilisé est léger, friable et conserve sa forme d'origine après réhydratation." } }, { "@type": "Question", "name": "Quels tests pour vérifier la qualité d'un produit lyophilisé ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de solubilité, d'humidité résiduelle et d'analyse organoleptique sont effectués." } }, { "@type": "Question", "name": "Quels sont les signes d'un produit mal lyophilisé ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Un produit mal lyophilisé peut présenter des grumeaux, une couleur anormale ou une odeur désagréable." } }, { "@type": "Question", "name": "Y a-t-il des effets secondaires de la lyophilisation ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "La lyophilisation n'a pas d'effets secondaires directs, mais peut altérer certains nutriments." } }, { "@type": "Question", "name": "Comment éviter la dégradation des produits lyophilisés ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Conservez-les dans un endroit frais, sec et à l'abri de la lumière pour préserver leur qualité." } }, { "@type": "Question", "name": "Quelles conditions sont idéales pour stocker des produits lyophilisés ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Un environnement à faible humidité et température stable est idéal pour le stockage." } }, { "@type": "Question", "name": "Comment réhydrater un produit lyophilisé ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Il suffit d'ajouter de l'eau à température ambiante ou chaude selon le produit." } }, { "@type": "Question", "name": "Quels produits sont souvent lyophilisés ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Les fruits, légumes, viandes et médicaments sont couramment lyophilisés pour la conservation." } }, { "@type": "Question", "name": "Quels risques si un produit lyophilisé est mal stocké ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Un mauvais stockage peut entraîner une perte de qualité, de goût et de valeur nutritionnelle." } }, { "@type": "Question", "name": "Peut-on consommer un produit lyophilisé périmé ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Il est déconseillé de consommer un produit périmé, même s'il semble intact." } }, { "@type": "Question", "name": "Quels facteurs influencent la qualité de la lyophilisation ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La température, la pression et la durée du processus de lyophilisation influencent la qualité." } }, { "@type": "Question", "name": "Quels produits sont plus sensibles à la lyophilisation ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Les produits riches en graisses ou en sucres peuvent être plus sensibles à la dégradation." } } ] } ] }

Sources (10000 au total)

Inference of single-cell network using mutual information for scRNA-seq data analysis.

With the advance in single-cell RNA sequencing (scRNA-seq) technology, deriving inherent biological system information from expression profiles at a single-cell resolution has become possible. It has ... We introduce SINUM, a method for constructing the SIngle-cell Network Using Mutual information, which estimates mutual information between any two genes from scRNA-seq data to determine whether they a... SINUM presents a view of biological systems at the network level to detect cell-type marker genes/gene pairs and investigate time-dependent changes in gene associations during embryo development. Code...

Role of stemness-related genes TIMP1, PGF, and SNAI1 in the prognosis of colorectal cancer through single-cell RNA-seq.

Colorectal cancer (CRC) is a fatal malignant tumor with poor prognosis. Cancer stem cells (CSCs) can cause metastasis, recurrence and drug resistance in CRC. This research aimed to analyze stemness-re... DESeq2 was applied to analyze the differentially expressed genes (DEGs). The mRNA stemness index (mRNAsi) was calculated by one-class logistic regression (OCLR). The stemness-related cells were analyz... 7916 DEGs between the CRC and normal tissues were obtained. The mRNAsi of the CRC tissues was shown to be significantly higher than that of the normal tissues. 7 and 8 cell types were annotated respec... TIMP1, PGF and SNAI1 were identified as stemness-related prognostic genes of CRC, and possibly potential therapeutic targets for CRC....

Single-cell transcriptome analysis reveals cellular and molecular alterations in small cell lung cancer tumors following chemotherapy.

Chemotherapy is the standard therapy for small cell lung cancer (SCLC), but relapse is common and the 2-year survival rate remains low. Given the contribution of the tumor microenvironment (TME) to ca...

Single-cell RNA-seq analysis revealed the stemness of a specific cluster of B cells in acute lymphoblastic leukemia progression.

Childhood acute lymphoblastic leukemia (ALL) is a common pediatric cancer. The heterogeneous characterization of B cells in ALL progression poses new challenges to researchers. We used single-cell seq... We collected the single cell (sc) RNA-seq data of ALL and health sample from the gene expression omnibus (GEO) database, the "Seurat" and "harmony" R package was used for quality control and scRNA-seq... We identified nine mainly cell clusters after scRNA-seq analysis, in which the B cells had higher infiltration proportion in the ALL samples and were sub-clustered into five cell sub-groups. The B cel... This study reveals the stemness characteristics of B cells and their critical role in ALL progression, a finding that provides new potential directions for the development of targeted therapies agains...

Single-Cell Transcriptome Analysis of Peripheral Neutrophils From Patients With Idiopathic Pulmonary Arterial Hypertension.

Idiopathic pulmonary hypertension (IPAH) is a rare and devastating disease often accompanied by persistent inflammation and immune responses. We aim to provide a reference atlas of neutrophils to faci... Peripheral neutrophils from naive patients with IPAH and matched controls were profiled. Whole-exon sequencing was performed to exclude known genetic mutations before establishing single-cell RNA sequ... Seurat clustering analysis revealed that the landscape of neutrophils encompassed 5 clusters, including 1 progenitor, 1 transition, and 3 functional clusters. The intercorrelated genes in patients wit... Our study yields a comprehensive dataset of the landscape of neutrophils in patients with IPAH. The predictive values of a neutrophil cluster characterized by higher MMP9 expression indicate a functio...

Single-cell RNA-seq public data reveal the gene regulatory network landscape of respiratory epithelial and peripheral immune cells in COVID-19 patients.

Infection with SARS-CoV-2 leads to coronavirus disease 2019 (COVID-19), which can result in acute respiratory distress syndrome and multiple organ failure. However, its comprehensive influence on path... In this study, we analyzed multiple public scRNA-seq datasets of nasopharyngeal swabs and peripheral blood to investigate the gene regulatory networks (GRNs) of healthy individuals and COVID-19 patien... Similar and dissimilar regulons were identified within or between epithelial and immune cells during COVID-19 severity progression. The relative transcription factors (TFs) and their targets were used... This study identified cell type- and condition-specific regulons in a wide range of cell types from the initial infection site to the peripheral blood, and clarified the diverse mechanisms of maladapt...