The phases of a cutaneous infection are initially the adhesion of the microorganism to the cells of the host, followed by the invasion of the tissues, than the elaboration of toxins and the escape from the defense systems of the host. The Human Amniotic Membrane (HAM) is extracted from the placenta of donors after caesarean section. The amnios is characterized by a monolayer of epithelial cells, a basement membrane and an avascular stroma of collagen. The HAM showed to promote chronic wound healing. We evaluated the "in vivo" and "in vitro" activity and efficacy of the HAM in subjects with chronic diabetic skin lesion. This clinical case showed that the HAM promote the wound healing of complex chronic skin lesion in a follow-up period of 6 months after the first graft.
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http://dx.doi.org/10.1016/j.amsu.2020.04.020 | DOI Listing |
Tissue Cell
January 2025
Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Objective: Research and tools are necessary for understanding prostate cancer biology. 3D cell culture models have been created to overcome the limitations of animal models and 2D cell culture. The amniotic membrane (AM), a natural biomaterial, emerges as an ideal scaffold for 3D cultures due to its accessibility and incorporation of the extracellular matrix (ECM) in both solid and liquid forms.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Institute for Regenerative Medicine, State Key Laboratory of Cardiology and Medical Innovation Center, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200123, P. R. China.
Human amniotic epithelial cells (hAECs) have shown excellent efficacy in clinical research and have prospective applications in the treatment of many diseases. However, the properties of the hAECs and their proliferative mechanisms remain unclear. Here, single-cell RNA sequencing (scRNA-seq) is performed on hAECs obtained from amniotic tissues at different gestational ages and passages during in vitro culture.
View Article and Find Full Text PDFJ Stomatol Oral Maxillofac Surg
January 2025
Department of Stomatology, the Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai 519090, China. Electronic address:
Objective: To investigate the reparative effect of hypoxia pretreated hAMSCs on radiation-induced damage to salivary gland function in mice.
Methods: hAMSCs were separated from human amniotic tissues by mechanical and enzymatic digestion methods and a 15 Gy electron beam was used to locally irradiate the neck of mouse to create a salivary gland injury model. The mouse models were randomly divided into four groups: control group, IR+PBS group, IR+Nor group and IR+HP group.
Int J Mol Sci
December 2024
Department of Experimental Biology, Faculty of Health Sciences, University of Jaén, 23071 Jaén, Spain.
Extracellular vesicles (EVs) are a heterogeneous group of membrane-encapsulated vesicles released by cells into the extracellular space. They play a crucial role in intercellular communication by transporting bioactive molecules such as proteins, lipids, and nucleic acids. EVs can be detected in body fluids, including blood plasma, urine, saliva, amniotic fluid, breast milk, and pleural ascites.
View Article and Find Full Text PDFTaiwan J Obstet Gynecol
January 2025
Genetics Lab of Longgang Maternity and Child Institute of Shantou University Medical College (Longgang District Maternity & Child Healthcare Hospital of Shenzhen City), Shenzhen, Guangdong, China. Electronic address:
Objective: This is a case report of a COL4A1 gene mutation which was confirmed by further genetic testing following anomalies observed in prenatal ultrasound and fetal brain magnetic resonance imaging (MRI).
Case Reports: The ultrasound examination of the patient revealed a mass in fetal left intracranial cavity. Repeated subsequent MRI detected an evolving mass in the left frontal parietal lobe.
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