Titre : Lyophilisation

Lyophilisation : Questions médicales fréquentes

Termes MeSH sélectionnés :

Single-Cell Gene Expression Analysis
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"@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)

Single-cell transcriptome analysis reveals immune microenvironment changes and insights into the transition from DCIS to IDC with associated prognostic genes.

Ductal carcinoma in situ (DCIS) of the breast is an early stage of breast cancer, and preventing its progression to invasive ductal carcinoma (IDC) is crucial for the early detection and treatment of ... We identified eight cell types through cell annotation, finding significant differences in T cell proportions between DCIS and IDC. Using this as a basis, we performed pseudotime analysis on T cell su... We identified immune cells that may play a role in the progression from DCIS to IDC and uncovered five key genes that can serve as prognostic markers for breast cancer. These findings provide insights...

Integrative single-cell RNA-seq analysis of vascularized cerebral organoids.

Cerebral organoids are three-dimensional in vitro cultured brains that mimic the function and structure of the human brain. One of the major challenges for cerebral organoids is the lack of functional... We integrated single-cell RNA sequencing data of multiple vascularized and vascular organoids and fetal brains from publicly available datasets and assessed the protocol-dependent and culture-day-depe... This study highlights the current challenges to vascularization strategies in human cerebral organoids and offers a benchmark for the future fabrication of vascularized organoids....

Single-cell transcriptome analysis of NEUROG3+ cells during pancreatic endocrine differentiation with small molecules.

The efficiency of inducing human embryonic stem cells into NEUROG3+ pancreatic endocrine cells is a bottleneck in stem cell therapy for diabetes. To understand the cell properties and fate decisions d...

Single-cell transcriptome analysis reveals the effectiveness of cytokine priming irrespective of heterogeneity in mesenchymal stromal cells.

Mesenchymal stromal cells (MSCs) are recognized as a potential cell-based therapy for regenerative medicine. Short-term inflammatory cytokine pre-stimulation (cytokine priming) is a promising approach... In this study, by analyzing the single-cell transcriptomic landscape of human bone marrow MSCs from a naïve to cytokine-primed state, we elucidated the potential mechanism of superior therapeutic pote... We found that cytokine-primed MSCs had a distinct transcriptome landscape. Although substantial heterogeneity was identified within the population in both naïve and primed states, cytokine priming enh... In conclusion, our results provide new insights into MSC heterogeneity under cytokine stimulation and suggest that cytokine priming reprogrammed MSCs independent of heterogeneity....

Single Cell Transcriptome Analysis of Peripheral Blood Mononuclear Cells in Freshly Isolated versus Stored Blood Samples.

Peripheral blood mononuclear cells (PBMCs) are widely used as a model in the study of different human diseases. There is often a time delay from blood collection to PBMC isolation during the sampling ... This study examined the impact of different time periods from blood draw to PBMC isolation on the subsequent transcriptome profiling of different cell types in PBMCs by scRNAseq using the 10X Chromium... Examining the five major cell types constituting the PBMC cell population, i.e., CD4+ T cells, CD8+ T cells, NK cells, monocytes, and B cells, both common changes and cell-type-specific changes were o... Significant transcriptome changes were observed across different PBMC cell types as a factor of time from blood draw to PBMC isolation and as a consequence of blood storage. This should be kept in min...