The Yolk sac is the first source of transfer between the mother and the embryo, with a nutritional and gas exchange function, vital for the development of the embryo, to which we can add primitive hematopoiesis, the production of stem cells and germ cells. Although normal-term pregnancies with abnormal aspects of the yolk sac have been described, the smaller or larger size of the yolk sac is associated with pregnancy loss. Our study aimed to determine whether the yolk sac size change, determined by measuring diameter (2D ultrasonography) or volume (3D ultrasonography), is independently associated with adverse pregnancy outcomes. The results of the study did not show a statistical significance between 2D and 3D measurements with adverse pregnancy outcomes, noting only an abrupt increase in the diameter and volume of the yolk sac preceding pregnancy loss. However, the evaluation of the yolk sac remains an important element in the ultrasound evaluation of pregnancy in the first trimester.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8987470 | PMC |
| http://dx.doi.org/10.12865/CHSJ.47.04.10 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The immune landscape of fetal chorionic villous tissue in term placenta.
Front Immunol
January 2025
Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky, Lexington, KY, United States.
Introduction: The immune compartment within fetal chorionic villi is comprised of fetal Hofbauer cells (HBC) and invading placenta-associated maternal monocytes and macrophages (PAMM). Recent studies have characterized the transcriptional profile of the first trimester (T1) placenta; however, the phenotypic and functional diversity of chorionic villous immune cells at term (T3) remain poorly understood.
Methods: To address this knowledge gap, immune cells from human chorionic villous tissues obtained from full-term, uncomplicated pregnancies were deeply phenotyped using a combination of flow cytometry, single-cell RNA sequencing (scRNA-seq, CITE-seq) and chromatin accessibility profiling (snATAC-seq).
In Vivo Imaging of Cardiac Attachment of TcI and TcII Variants of in a Zebrafish Model.
Pathogens
January 2025
Biomedical Sciences Laboratory (CBMU), School of Medicine, Universidad de Los Andes, Bogotá D.C 111711, Colombia.
, the etiological agent of Chagas disease, is a parasite known for its diverse genotypic variants, or Discrete Typing Units (DTUs), which have been associated with varying degrees of tissue involvement. However, aspects such as parasite attachment remain unclear. It has been suggested that the TcI genotype is associated with cardiac infection, the most common involved site in chronic human infection, while TcII is associated with digestive tract involvement.
View Article and Find Full Text PDFDown syndrome with cryptorchidism and retroperitoneal mixed germ cell tumour in an adult patient: a case report and literature review.
World J Surg Oncol
January 2025
Department of Colorectal Surgery, Dingli Clinical College, Wenzhou Medical University (Wenzhou Central Hospital), 252 Baili East Road, Wenzhou, Zhejiang Province, 32500, China.
Background: An association between testicular cancer and Down syndrome has been reported by several studies. Down syndrome with cryptorchidism and retroperitoneal mixed germ cell tumours is rare, and yolk sac tumours are often considered secondary components of mixed germ cell tumours. Herein, we present a rare case of retroperitoneal mixed germ cell tumour with cryptorchidism accompanied by yolk sac tumour and seminoma in a patient with Down syndrome, along with its imaging features.
View Article and Find Full Text PDFD-Ala2-GIP (1-30) promotes angiogenesis by facilitating endothelial cell migration via the Epac/Rap1/Cdc42 signaling pathway.
Cell Signal
January 2025
Department of Respiratory and Critical Care Medicine, Affiliated Hospital and Medical School of Nantong University, Nantong, Jiangsu Province 226001, China. Electronic address:
Angiogenesis, a meticulously regulated process essential for both normal development and pathological conditions, necessitates a comprehensive understanding of the endothelial mechanisms governing its progression. Leveraging the zebrafish model and NgAgo knockdown system to identify target genes influencing angiogenesis, our study highlights the significant role of gastric inhibitory polypeptide (GIP) and its receptor (GIPR) in this process. While GIP has been extensively studied for its insulinotropic and glucagonotropic effects, its role in angiogenesis remains unexplored.
View Article and Find Full Text PDFIn vivo toxicological evaluation of 3-benzylideneindolin-2-one: antifungal activity against clinical isolates of dermatophytes.
BMC Pharmacol Toxicol
January 2025
Department of Basic Sciences, Faculty of Allied Health Science, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.
Background: Dermatophytes, the primary causative agents of superficial cutaneous fungal infections in humans, present a significant therapeutic challenge owing to the increasing prevalence of recurrent infections and the emergence of antifungal resistance. To address this critical gap, this study was designed to investigate the antifungal potential of 3-benzylideneindolin-2-one against dermatophytes and assess its in vivo toxicological profile using brine shrimp and zebrafish embryo models.
Methods: The antifungal activity of 3-benzylideneindolin-2-one was evaluated against 30 clinical isolates of dermatophyte species, including Trichophyton mentagrophytes, Trichophyton rubrum, Microsporum gypseum, Microsporum canis, and Epidermophyton floccosum, by determining the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) using the broth microdilution method.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!