نتایج جستجو برای: umbilical cord morphology
تعداد نتایج: 241747 فیلتر نتایج به سال:
microrna modulation during the in vitro culture of hematopoietic stem cells prior to transplantation
background: human umbilical cord blood (hucb) is an acceptable and readily accessible source of stem cells. there is an ongoing interest in cord blood stem cell therapies; however, little is known about the possible unfavorable effects of laboratory modifications on the isolated hucb cells. the involvement of mirnas in several biological processes has been shown. the aim of this study was to ev...
introduction and objectives: annually one million newborns die due to the umbilical cord infection. thus, in this study, we aimed toevaluate the effect of topical aloe vera gel on umbilical cord complications. methods: this randomized clinical trial was performed in maternity ward of ghaem hospital, mashhad, iran the samples were selected through convenience sampling and were randomly divided i...
background: in recent years we have successfully adopted an in vitro hepatogenic differentiation of mesenchymal stem cells (mscs). in this protocol the biologically active hepatocyte-like cells were differentiated from the stem cells isolated from either bone marrow or umbilical cord blood (ucb) samples. the aim of the present study was to compare the efficiency of the hepatogenic differentiati...
The aim of this study was to investigate whether the chromosomes of human umbilical cord-derived mesenchymal stem cells (hUCMSCs) change following in vitro culture for several generations. In the present study, umbilical cords from two healthy infants following cesarean delivery were collected aseptically and hUCMSCs were isolated by digestion with collagenase and trypsin, and then cultured in ...
Human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) have recently been recognized as a potential source for cell-based therapy in various preclinical animal models, such as Parkinson's disease, cerebral ischemia, spinal cord injury, and liver failure; however, the precise cellular and molecular mechanisms underlying the beneficial outcomes remain under investigation. There is a growi...
Umbilical cord blood is a valuable source of haematopoietic stem cells. There is little information about whether religious affiliations have any bearing on attitudes to and decisions about its collection, donation and storage. The authors provided information about umbilical cord blood banking to expert commentators from six major world religions (Catholicism, Anglicanism, Islam, Judaism, Hind...
We present here a case of fore-lying of the umbilical cord. In this case, transvaginal sonography did not reveal the umbilical cord beyond the fetal head before maternal urination; however, 5 minute later, a fore-lying umbilical cord was revealed between the floating fetal head and the uterine cervix after urination. The present case indicates the importance of careful evaluation of preterm pre...
INTRODUCTION Mesenchymal stem cells (MSCs) are defined as cells that can differentiate into multiple mesenchymal lineage cells. MSCs were obtained from various sources; bone marrow, umbilical cord blood, adipose tissue and synovium etc. It has been reported that MSCs isolated from the bone marrow showed variation in size, morphology and level of alkaline phosphatase activity among clones isolat...
conclusions our results suggested that cb-nk cells progenitors could proliferate and differentiate on feeder layer of amnion membrane mscs in combination with specific cytokines to produce nk cells for immunotherapy. results combination of cytokines and msc layer yielded significant fold expansion in comparison with cytokines without feeder conditions (day 7: 5.2 ± 1.12 and 2 ± 0.78, respective...
Posthemorrhagic anemia is a rare but important cause of anemia in neonates, second only to hemolytic anemia of newborn. Most cases of posthemorrhagic anemia are reported from fetomaternal hemorrhage or umbilical cord accidents in utero. This case report describes a preterm infant who developed severe anemia and shock immediately after delivery related to an acute hemorrhage through patent umbil...
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