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https://www.readbyqxmd.com/read/27920589/dna-methylation-of-regulatory-regions-of-imprinted-genes-at-birth-and-its-relation-to-infant-temperament
#1
Bernard F Fuemmeler, Chien-Ti Lee, Adelheid Soubry, Edwin S Iversen, Zhiqing Huang, Amy P Murtha, Joellen M Schildkraut, Randy L Jirtle, Susan K Murphy, Cathrine Hoyo
BACKGROUND: DNA methylation of the differentially methylated regions (DMRs) of imprinted genes is relevant to neurodevelopment. METHODS: DNA methylation status of the DMRs of nine imprinted genes in umbilical cord blood leukocytes was analyzed in relation to infant behaviors and temperament (n = 158). RESULTS: MEG3 DMR levels were positively associated with internalizing (β = 0.15, P = 0.044) and surgency (β = 0.19, P = 0.018) behaviors, after adjusting for birth weight, gender, gestational age at birth, maternal age at delivery, race/ethnicity, education level, smoking status, parity, and a history of anxiety or depression...
2016: Genetics & Epigenetics
https://www.readbyqxmd.com/read/27918956/the-injury-of-fine-particulate-matter-from-cooking-oil-fumes-on-umbilical-cord-blood-vessels-in-vitro
#2
Lijuan Hou, Jian Zhang, Chao Zhang, Yachun Xu, Xiaoxia Zhu, Cijiang Yao, Ying Liu, Tao Li, Jiyu Cao
Cooking oil fumes (COFs) derived PM2.5 is the major source of indoor air pollution in Asia. For this, a pregnant rat model within different doses of cooking oil fumes (COFs) derived PM2.5 was established in pregnancy in our research. Our previous studies have showed that exposure to COFs-derived PM2.5 was related to adverse pregnancy outcomes. However, the mechanisms of signaling pathways remain unknown. Therefore, this study aimed to investigate the underlying mechanisms induced by COFs-derived PM2.5 injury on umbilical cord blood vessels (UCs) in vitro...
November 21, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27916805/roles-of-microrna-across-prenatal-and-postnatal-periods
#3
REVIEW
Ilaria Floris, Jamie D Kraft, Illimar Altosaar
Communication between mother and offspring in mammals starts at implantation via the maternal-placental-fetal axis, and continues postpartum via milk targeted to the intestinal mucosa. MicroRNAs (miRNAs), short, noncoding single-stranded RNAs, of about 22 nucleotides in length, are actively involved in many developmental and physiological processes. Here we highlight the role of miRNA in the dynamic signaling that guides infant development, starting from implantation of conceptus and persisting through the prenatal and postnatal periods...
November 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27915012/intra-laboratory-validated-human-cell-based-in-vitro-vasculogenesis-angiogenesis-test-with-serum-free-medium
#4
T Toimela, O Huttala, E Sabell, M Mannerström, J R Sarkanen, T Ylikomi, T Heinonen
Vasculogenesis and angiogenesis are the processes by which new blood vessels are formed. We have developed a serum-free human adipose stromal cell and umbilical cord vein endothelial cell based vasculogenesis/angiogenesis test. In this study, the test was validated in our GLP laboratory following the OECD Guidance Document 34 [1] using erlotinib, acetylic salicylic acid, levamisole, 2-methoxyestradiol, anti-VEGF, methimazole, and D-mannitol to show its reproducibility, repeatability, and predictivity for humans...
November 30, 2016: Reproductive Toxicology
https://www.readbyqxmd.com/read/27911970/association-between-maternal-perceived-psychological-stress-and-fetal-telomere-length
#5
Hamisu M Salihu, Lindsey M King, Chiaka Nwoga, Arnut Paothong, Anupam Pradhan, Phillip J Marty, Rana Daas, Valerie E Whiteman
OBJECTIVE: Our study aimed to investigate the association between maternal-perceived psychological stress and fetal telomere length. METHODS: We recruited women in labor upon hospital delivery admission. Based on responses to the Perceived Stress Scale, we categorized participants as having "high," "normal," or "low" perceived stress. We collected umbilical cord blood samples (N = 71) and isolated genomic DNA from cord blood leukocytes using quantitative polymerase chain reaction...
December 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27909435/immune-reconstitution-after-allogeneic-hematopoietic-stem-cell-transplantation
#6
REVIEW
Justyna Ogonek, Mateja Kralj Juric, Sakhila Ghimire, Pavankumar Reddy Varanasi, Ernst Holler, Hildegard Greinix, Eva Weissinger
The timely reconstitution and regain of function of a donor-derived immune system is of utmost importance for the recovery and long-term survival of patients after allogeneic hematopoietic stem cell transplantation (HSCT). Of note, new developments such as umbilical cord blood or haploidentical grafts were associated with prolonged immunodeficiency due to delayed immune reconstitution, raising the need for better understanding and enhancing the process of immune reconstitution and finding strategies to further optimize these transplant procedures...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27906881/stem-cells-and-clinical-practice-new-advances-and-challenges-at-the-time-of-emerging-problems-with-induced-pluripotent-stem-cell-therapies
#7
Mariusz Z Ratajczak, Kamila Bujko, Wojciech Wojakowski
Humans, like other species that reproduce sexually, originate from a fertilized oocyte (zygote), which is a totipotent stem cell giving rise to an adult organism. During the process of embryogenesis, stem cells at different levels of the developmental hierarchy establish all 3 germ layers and give rise to tissue‑committed stem cells, which are responsible for rejuvenation of a given tissue or organ. The robustness of the stem cell compartment is one of the major factors that directly impact life quality as well as lifespan...
November 10, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27906056/umbilical-cord-blood-derived-non-hematopoietic-stem-cells-retrieved-and-expanded-on-bone-marrow-derived-extracellular-matrix-display-pluripotent-characteristics
#8
Junjie Wu, Yun Sun, Travis J Block, Milos Marinkovic, Zhi-Liang Zhang, Richard Chen, Yixia Yin, Juquan Song, David D Dean, Zhongding Lu, Xiao-Dong Chen
BACKGROUND: Umbilical cord blood (UCB) not only contains hematopoietic stem cells (HSCs), but also non-hematopoietic stem cells (NHSCs) that are able to differentiate into a number of distinct cell types. Based on studies published to date, the frequency of NHSCs in UCB is believed to be very low. However, the isolation of these cells is primarily based on their adhesion to tissue culture plastic surfaces. METHODS AND RESULTS: In the current study, we demonstrate that this approach overlooks some of the extremely immature NHSCs because they lack the ability to adhere to plastic...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27905684/the-effect-of-maternal-and-infant-factors-on-cord-blood-yield
#9
REVIEW
Seyed Hadi Mousavi, Saeid Abroun, Morteza Zarrabi, Mona Ahmadipanah
Umbilical cord blood (CB) can be used as an alternative hematopoietic stem cell source for transplantation in hematological malignancy and blood disorders. The success of transplantation is highly related to the levels of total nucleated cell and CD34(+) cell counts. The evaluation of optimal conditions can decrease the rate of graft rejection due to low cell count and increases the quality of CB units (CBUs) in the blood bank and the success rate of engraftment. To this end, we review the maternal and infant parameters affecting the quality and quantity of CBUs...
December 1, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27902355/the-use-of-human-umbilical-cord-blood-serum-is-beneficial-for-the-continuous-production-of-hepatitis-c-virus
#10
Xiao-Yang Jiao, Rineke H G Steenbergen, D Lorne Tyrrell
In this study we investigated if human umbilical cord blood serum (CBS) is a suitable replacement for fetal bovine serum (FBS) in cultures of human hepatoma cell line Huh7.5, particularly regarding its capacity to maintain high growth rates, differentiation status and its ability to support robust HCV infection. Generally, CBS cultured Huh7.5 cells remained comparable to FBS cultured cells, and proliferated equally well. Albumin secretion, a hepatocyte differentiation marker, had increased 8x in CBS, however, most other hepatocyte markers we tested had not changed...
October 24, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27901098/tumor-specific-delivery-of-biologics-by-a-novel-t-cell-line-hozot
#11
Teppei Onishi, Hiroshi Tazawa, Yuuri Hashimoto, Makoto Takeuchi, Takeshi Otani, Shuji Nakamura, Fuminori Sakurai, Hiroyuki Mizuguchi, Hiroyuki Kishimoto, Yuzo Umeda, Yasuhiro Shirakawa, Yasuo Urata, Shunsuke Kagawa, Toshiyoshi Fujiwara
"Cell-in-cell" denotes an invasive phenotype in which one cell actively internalizes in another. The novel human T-cell line HOZOT, established from human umbilical cord blood, was shown to penetrate a variety of human cancer cells but not normal cells. Oncolytic viruses are emerging as biological therapies for human cancers; however, efficient viral delivery is limited by a lack of tumor-specific homing and presence of pre-existing or therapy-induced neutralizing antibodies. Here, we report a new, intriguing approach using HOZOT cells to transmit biologics such as oncolytic viruses into human cancer cells by cell-in-cell invasion...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27899238/goat-umbilical-cord-cells-are-permissive-to-small-ruminant-lentivirus-infection-in-vitro
#12
Gabrielle R Martins, Rebeca C Marinho, Rosivaldo Q Bezerra Junior, Antoniel de O Alves, Lilia M C Câmara, Luiz C Albuquerque-Pinto, Maria F da S Teixeira
Small ruminant lentiviruses isolated from peripheral blood leukocytes and target organs can be propagated in vitro in fibroblasts derived from goat synovial membrane cells. These cells are obtained from tissues collected from embryos or fetuses and are necessary for the establishment of the fibroblast primary culture. A new alternative type of host cells, derived from goat umbilical cord, was isolated and characterized phenotypically with its main purpose being to obtain cell monolayers that could be used for the diagnosis and isolation of small ruminant lentiviruses in cell culture...
November 19, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/27899144/hypoxia-induced-responses-by-endothelial-colony-forming-cells-are-modulated-by-placental-growth-factor
#13
Michelle B Hookham, Imran H A Ali, Christina L O'Neill, Emer Hackett, Melanie H Lambe, Tina Schmidt, Reinhold J Medina, Sara Chamney, Bharathi Rao, Eibhlin McLoone, David Sweet, Alan W Stitt, Derek P Brazil
BACKGROUND: Endothelial colony-forming cells (ECFCs), also termed late outgrowth endothelial cells, are a well-defined circulating endothelial progenitor cell type with an established role in vascular repair. ECFCs have clear potential for cell therapy to treat ischaemic disease, although the precise mechanism(s) underlying their response to hypoxia remains ill-defined. METHODS: In this study, we isolated ECFCs from umbilical cord blood and cultured them on collagen...
November 29, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27897027/-acute-uterine-inversion-after-delivery
#14
E Pechová, I Bydžovská, M Krausová, M Lubušký
OBJECTIVE: A case of acute inversion of the uterus after childbirth, in which we successfully perform a manual vaginal reposition of the uterus. DESIGN: Case report. SETTING: Department of Obstetrics and Gynaecology, Krajská nemocnice Liberec, a.s.; Department of Obstetrics and Gynaecology, Palacky University Hospital, Olomouc. OBSERVATION: Our case report describes acute post-partum uterine inversion of the second degree, which developed after delivery in a 36-year-old primigravida...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27892735/delivery-route-determines-the-presence-of-immune-complexes-on-umbilical-cord-erythrocytes
#15
Andrés de Lima, Luis C Franco, Andrés Sarmiento, John M González
OBJECTIVE: Umbilical cord blood offers a unique opportunity to study the basal level of immunoglobulin complexes. This study aims to determine the presence of immune complexes and complement deposition on erythrocytes from umbilical cord blood from normal, full-term pregnancies. METHODS: In vitro pre-formed IgA, IgG, and IgM complexes were used as positive control for flow cytometry detection, and for C3d deposition. Blood samples (34) of umbilical cord blood taken from vaginal and cesarean deliveries were tested for the presence of immunoglobulin complexes...
November 28, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27891191/birth-weight-for-gestational-age-is-associated-with-dna-methylation-at-birth-and-in-childhood
#16
Golareh Agha, Hanine Hajj, Sheryl L Rifas-Shiman, Allan C Just, Marie-France Hivert, Heather H Burris, Xihong Lin, Augusto A Litonjua, Emily Oken, Dawn L DeMeo, Matthew W Gillman, Andrea A Baccarelli
BACKGROUND: Both higher and lower fetal growth are associated with cardio-metabolic health later in life, suggesting that prenatal developmental programming determines long-term cardiovascular disease risk. Epigenetic mechanisms, which orchestrate fetal growth and development, may offer insight on the early programming of health and disease. We investigated whether birth weight-for-gestational is associated with DNA methylation at birth and mid-childhood, measured via the Infinium 450K array...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27889462/maternal-and-umbilical-cord-blood-levels-of-mercury-manganese-iron-and-copper-in-southern-taiwan-a-cross-sectional-study
#17
Shih-Hui Huang, Ken-Pen Weng, Ching-Chiang Lin, Chung-Cheng Wang, Charles Tzu-Chi Lee, Luo-Ping Ger, Ming-Tsang Wu
BACKGROUND: The effect of maternal exposure to essential minerals and heavy metals on fetus is an important issue, which affects women around the world. Few data are available on the concentration of both essential minerals and heavy metals in maternal/fetal medicine. The aims of this study were to (1) assess the correlation of mercury (Hg), manganese (Mn), iron (Fe), and copper (Cu) in paired maternal/fetal blood samples, and (2) study potential confounding factors during pregnancy. METHODS: Our study recruited 145 healthy pregnant women with a mean age of 28...
November 23, 2016: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/27888796/altered-dna-methylation-in-neonates-born-large-for-gestational-age-is-associated-with-cardiometabolic-risk-in-children
#18
Xian-Hua Lin, Dan-Dan Wu, Ling Gao, Jun-Yu Zhang, Hai-Tao Pan, Hui Wang, Cheng Li, Ping Zhang, Meng-Xi Guo, Yan-Ting Wu, Ya-Jing Tan, Li Jin, Yu-Qian Xiang, Ju-Xue Li, Jian-Zhong Sheng, He-Feng Huang
BACKGROUND: Infants being born Large-for-gestational-age (LGA) are prone to developing cardiometabolic disease. However, the underlying mechanisms remain unclear. RESULTS: Clinical investigation showed that children born LGA had significantly higher serum level of total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-c), and insulin, ratio of TC/high-density lipoprotein-cholesterol (HDL-c) compared to children born appropriate for gestational age (AGA)...
November 18, 2016: Oncotarget
https://www.readbyqxmd.com/read/27888015/early-and-long-term-impaired-t-lymphocyte-immune-reconstitution-after-cord-blood-transplantation-with-antithymocyte-globulin
#19
Nerea Castillo, Irene García-Cadenas, Pere Barba, Carme Canals, Cristina Díaz-Heredia, Rodrigo Martino, Christelle Ferrà, Isabel Badell, Izaskun Elorza, Jorge Sierra, David Valcárcel, Sergio Querol
Immune reconstitution is crucial to the success of allogeneic hematopoietic stem cell transplantation. Umbilical cord blood transplantation (UCBT) has been associated with delayed immune reconstitution. We characterized the kinetics and investigated the risk variables affecting the main lymphocyte subsets recovery in 225 consecutive pediatric and adult patients [males, n=126, median age=15, range 0.3-60, interquartile range, 4-35] who underwent myeloablative single-UCBT between 2005 and 2015 for malignant and non-malignant disorders...
November 22, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27887864/optimization-of-cgmp-purification-and-expansion-of-umbilical-cord-blood-derived-t-regulatory-cells-in-support-of-first-in-human-clinical-trials
#20
David H McKenna, Darin Sumstad, Diane M Kadidlo, Bjorn Batdorf, Colin J Lord, Sarah C Merkel, Christine M Koellner, Julie M Curtsinger, Carl H June, James L Riley, Bruce L Levine, Jeffrey S Miller, Claudio G Brunstein, John E Wagner, Bruce R Blazar, Keli L Hippen
BACKGROUND AIMS: Thymic-derived regulatory T cells (tTreg) are critical regulators of the immune system. Adoptive tTreg transfer is a curative therapy for murine models of autoimmunity, graft rejection, and graft-versus-host disease (GVHD). We previously completed a "first-in-human" clinical trial using in vitro expanded umbilical cord blood (UCB)-derived tTreg to prevent GVHD in patients undergoing UCB hematopoietic stem cell transplantation (HSCT). tTreg were safe and demonstrated clinical efficacy, but low yield prevented further dose escalation...
November 22, 2016: Cytotherapy
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