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https://www.readbyqxmd.com/read/28731615/the-prevalence-of-ccr5-%C3%AE-32-mutation-in-a-cohort-of-saudi-stem-cell-donors
#1
M Alarifi, F Al-Amro, A Alalwan, A Al-Turki, H Fakhoury, N Atallah, M Al Muallimi, M Al-Balwi, M ALzahrani, A Alaskar, A Hajeer, D Jawdat
CCR5 is a chemokine receptor that also was found to be used by HIV as a co-receptor for entering target cells. A 32 bp deletion was described in certain people that rendered CCR5 non-functional. The mutant allele CCR5-Δ32 has been shown to prevent HIV infection. In addition, stem cell transplantation with the CCR5-Δ32 homozygous genotype can lead to clearance of HIV infection. In this study, our aim was to investigate the frequency of CCR5-Δ32 mutation in a cohort of stem cell donors from cord blood bank and stem cell donor registry...
July 21, 2017: HLA
https://www.readbyqxmd.com/read/28729150/impact-of-dendritic-cell-recovery-on-outcomes-after-umbilical-cord-blood-and-sibling-donor-transplantation-for-hematologic-malignancies
#2
Waseem Touma, Claudio G Brunstein, Michael R Verneris, Qing Cao, Julie Curtsinger, Jeffrey S Miller, Veronika Bachanova
Dendritic cells (DCs) orchestrate immune responses after allogeneic hematopoietic cell transplantation (HCT). We studied the association of donor myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) recovery in the landmark analysis of umbilical cord blood (UCB) and matched related donor (RD) HCT. Eighty patients (42 UCB and 38 RD recipients) with a day 100 (D+100) blood sample were included in the analysis. Median age was 51 years (20-71). Most patients had acute leukemia (50%) or lymphoma (23%) and received reduced-intensity conditioning (75%)...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28729147/adult-umbilical-cord-blood-transplantation-using-myeloablative-thiotepa-total-body-irradiation-and-fludarabine-conditioning
#3
Sarah Anand, Samantha Thomas, Kelly Corbet, Cristina Gasparetto, Gwynn D Long, Richard Lopez, Ashley K Morris, David A Rizzieri, Keith M Sullivan, Anthony D Sung, Stefanie Sarantopoulos, Nelson J Chao, Mitchell E Horwitz
Treatment related mortality (TRM) remains elevated in adult patients undergoing umbilical cord blood (UCB) transplantation, including an early rise in TRM suggestive of excessive toxicity associated with the standard myeloablative total body irradiation (TBI), fludarabine, and cyclophosphamide regimen. In an attempt to reduce regimen-related toxicity, we previously studied a modified myeloablative regimen with total body irradiation (1350 cGy) and fludarabine (160 mg/m(2)); TRM was decreased but neutrophil engraftment was suboptimal...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28727478/alloimmune-hemolysis-due-to-major-rhe-incompatibility-after-unrelated-cord-blood-transplantation
#4
Masamichi Isobe, Takaaki Konuma, Yuka Abe-Wada, Kyoko Hirata, Kazuo Ogami, Seiko Kato, Maki Oiwa-Monna, Susumu Tanoue, Tokiko Nagamura-Inoue, Satoshi Takahashi, Arinobu Tojo
No abstract text is available yet for this article.
July 20, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28724268/efficient-expansion-of-sall4-transduced-umbilical-cord-blood-derived-cd133-hematopoietic-stem-cells
#5
Majid Mossahebi-Mohammadi, Amir Atashi, Saeid Kaviani, Masoud Soleimani
Hematopoietic stem cells (HSCs) were characterized by self-renewal and multilineage potential. Umbilical cord blood-derived (UCB) as an alternative source of HSCs is widely used especially in children for stem cells transplant (SCT). The main limitation in using UCB for transplantation especially in adults is low cell dose. To overcome this limitation besides using double dose UCB, ex vivo expansion is the most important way to increase cell number for transplantation. HSCs are mainly isolated using CD133 or CD34...
May 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28717085/high-dose-chemotherapy-with-stem-cell-rescue-provided-durable-remission-for-classical-hodgkin-lymphoma-type-post-transplant-lymphoproliferative-disorder-after-unrelated-cord-blood-transplantation-a-case-report-and-review-of-the-literature
#6
Hidehiro Itonaga, Takeharu Kato, Machiko Fujioka, Masataka Taguchi, Hiroaki Taniguchi, Yoshitaka Imaizumi, Shinichiro Yoshida, Hiroaki Miyoshi, Yukiyoshi Moriuchi, Koichi Ohshima, Yasushi Miyazaki
An adult woman developed polymorphic post-transplant lymphoproliferative disorder (PTLD) 58 months after unrelated cord blood transplantation. She was treated successfully with chemotherapy and radiation therapy but presented with lymphadenopathy and splenomegaly 74 months after transplantation. A lymph node biopsy confirmed the diagnosis of nodular sclerosis type Hodgkin lymphoma (classical Hodgkin lymphoma [CHL]-type PTLD). After salvage therapy and hematopoietic stem cell harvesting, she was subsequently treated with consolidative high-dose chemotherapy with melphalan followed by stem cell rescue, which resulted in durable remission...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28716596/quality-comparison-of-umbilical-cord-blood-cryopreserved-with-conventional-versus-automated-systems
#7
Kyeong Mi Kim, Ji Young Huh, Jin Ju Kim, Myung Seo Kang
Umbilical cord blood (CB) banks usually freeze and store CB for clinical transplantation using conventional controlled-rate freezer or the automated BioArchive system. The aim of this study is to compare the quality of CB cryopreserved with conventional and automated methods and to make clear the cause of the quality difference between the two methods. The experiment used 80 CB units: 40 were conventionally cryopreserved and the remainder were cryopreserved with a BioArchive. After thawing, the following measures of CB quality were compared: recovery rates of cell count, cell viability of total nucleated cells (TNCs), mononuclear cells (MNCs), and CD34+ cells, as well as colony-forming unit-granulocyte/macrophage (CFU-GM) content...
July 14, 2017: Cryobiology
https://www.readbyqxmd.com/read/28711452/hematopoietic-stem-cell-transplantation-in-algeria
#8
REVIEW
M A Bekadja, M Brahimi, S Osmani, N Yafour, A Krim, F Serradj, S Talhi, K Amani, R Bouhass
Algeria is a country of 40.4 million inhabitants half of whom are younger than 30years. In Algeria, healthcare insurance covers 90% of the population. Healthcare is free and it is supported by the Ministry of Health. Sixteen university hospitals exist in Algeria and only two (Algiers and Oran) practice bone marrow transplant. Hematologic malignancies in adults account for 10% (∼4000 new cases/y) of the malignancy affecting in most cases young patients under 65years of age. In 2016, 270 transplants were performed (Algiers and Oran), including 149 allografts (related donor transplants: 99%) and 121 autografts...
July 11, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28707754/non-sibling-hematopoietic-stem-cell-transplantation-using-myeloablative-conditioning-regimen-in-children-with-maroteaux-lamy-syndrome-a-brief-report
#9
Maryam Behfar, S Sharareh Dehghani, Tahereh Rostami, Ardeshir Ghavamzadeh, Amir Ali Hamidieh
Maroteaux-Lamy syndrome is a rare inherited lysosomal storage disorder with a progressive course. HSCT is a curable option for treatment in these patients. The following report describes our experience in HSCT for three patients with Maroteaux-Lamy syndrome using non-sibling donors. All of the patients received the same myeloablative regimen consisting of intravenous busulfan, cyclophosphamide, and rabbit antithymocyte globulin. Patients underwent HSCT from haploidentical other-related (n=1), full-matched other-related (n=1), and one-locus-mismatched unrelated donor...
August 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28694008/-reduced-intensity-conditioning-haematopoietic-stem-cell-transplantation-in-genetic-diseases-experience-of-the-spanish-working-group-for-bone-marrow-transplantation-in-children
#10
Lucía López-Granados, Montserrat Torrent, Ana Sastre, Marta Gonzalez-Vicent, Cristina Díaz de Heredia, Bienvenida Argilés, Antonia Pascual, José M Pérez-Hurtado, Luisa Sisinni, Miguel Ángel Diaz, Izaskun Elorza, M Angeles Dasí, Isabel Badell
INTRODUCTION: Haematopoietic stem cell transplantation (HSCT) involves implanting cellular elements capable of generating a new and healthy haematopoietic system. Reduced intensity conditioning (RIC) consists of an immunosuppressive treatment to facilitate a progressive implant with lower morbidity. This type of conditioning can also lead to myelosuppression, which is potentially reversible over time. Reduced intensity conditioning enables HSCT to be performed on patients with genetic diseases for whom added comorbidity is undesirable due to the high doses of chemotherapy that accompanies conventional myeloablative regimens...
July 7, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28687990/cd34-negative-hematopoietic-stem-cells-show-distinct-expression-profiles-of-homing-molecules-that-limit-engraftment-in-mice-and-sheep
#11
Tomoyuki Abe, Yoshikazu Matsuoka, Yoshikazu Nagao, Yoshiaki Sonoda, Yutaka Hanazono
We and others have reported that human hematopoietic stem cells (HSCs) are also present in the CD34-negative (CD34(-)) fraction of human cord blood (CB). Here, we examined the hematopoietic engraftment potential of 13 or 18 lineage-negative (13Lin(-) or 18Lin(-)) CD34(+/-) cells from human CB in mice and sheep. Both 13Lin(-) and 18Lin(-) CD34(+) cells efficiently engrafted in mice irrespective of transplantation route, be it by tail-vein injection (TVI) or by intra-bone marrow injection (IBMI). These cells also engrafted in sheep after in utero fetal intra-hepatic injection (IHI)...
July 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28687582/role-of-alternative-donor-allogeneic-transplants-in-the-therapy-of-acute-myeloid-leukemia
#12
REVIEW
Hany Elmariah, Keith W Pratz
Adult acute myeloid leukemia (AML) is often associated with a poor prognosis, with allogeneic transplantation representing the greatest chance of cure for eligible patients. Historically, the preferred donor source is a human leukocyte antigen-matched blood relative, although only approximately 30% of patients have access to such a donor. Alternative donor sources, including matched unrelated donors, umbilical cord blood, and haploidentical related donors, are available for almost every patient and are increasingly being used for patients without a matched related donor...
July 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28687394/umbilical-cord-blood-cytomegalovirus-serostatus-does-not-have-an-impact-on-outcomes-of-umbilical-cord-blood-transplantation-for-acute-leukaemia
#13
Olga Nikolajeva, Vanderson Rocha, Robert Danby, Annalisa Ruggeri, Fernanda Volt, Etienne Baudoux, Susana G Gomez, Gezine Kögler, Jerome Larghero, Lucilla Lecchi, Mar Sanchez Martinez, Cristina Navarrete, Fabienne Pouthiers, Sergio Querol, Chantal Kenzey, Richard Szydlo, Eliane Gluckman, Alejandro Madrigal
Several studies have reported an impact of the adult haematopoietic stem cells donors cytomegalovirus (CMV) serostatus on allogeneic haematopoietic cell transplantation (HCT) outcomes. Limited data, however, are available on the impact of cord blood unit (CBU) CMV serostatus on allogeneic umbilical cord blood transplantation (UCBT) outcomes. We analysed, retrospectively, the impact of CBU CMV serostatus on relapse incidence (RI) and 2-year non-relapse mortality (NRM) of single-unit CBU transplantation for acute leukaemia...
July 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28687174/pre-implantation-hla-matching-the-production-of-a-saviour-child
#14
REVIEW
Georgia Kakourou, Christina Vrettou, Maria Moutafi, Joanne Traeger-Synodinos
Pre-implantation genetic diagnosis (PGD) requires the use of assisted reproductive technology (ART) to create several pre-implantation-stage embryos, followed by biopsy of embryonic cells for genetic testing and transfer of selected embryos to the womb to establish a pregnancy. HLA typing of ART-created embryos was first reported in 2001. The aim is to establish a pregnancy that is HLA-compatible with an affected sibling who requires haematopoietic stem cell transplantation. HLA-typing can be performed with or without PGD for the exclusion of a single-gene disorder...
June 16, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28685587/3-dimensional-nano-fibre-scaffold-for-ex-vivo-expansion-of-cord-blood-haematopoietic-stem-cells
#15
Seyed Hadi Mousavi, Saeid Abroun, Masoud Soleimani, Seyed Javad Mowla
Cord blood (CB) haematopoietic stem cell (HSC) is an alternative source of HSC transplantation. The limited cell number greatly restricts their clinic-scale therapeutic applications. The objective of this study was an ex vivo expansion of CB HSCs in a new three-dimensional polycaprolactone nano-scaffold coated with fibronectin (FN). First, we isolated CB CD34+ cells and cultured 10 days in presence of growth factors. The evaluation was performed by qRT-PCR, flow cytometry and clonogenicity. 3D PCL nano-scaffold coated with FN produced significantly higher total nucleated cells and CD34+ cells (p < ...
July 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28684372/umbilical-cord-blood-transplantation-in-children-with-acute-leukemia-impact-of-conditioning-on-transplant-outcomes
#16
Mary Eapen, Joanne Kurtzberg, Mei-Jie Zhang, Gareth Hattersely, Mingwei Fei, Adam Mendizabal, Ka Wah Chan, Satiro De Oliveira, Kirk R Schultz, Donna Wall, Mary M Horowitz, John E Wagner
The Blood and Marrow Transplant Clinical Trials Network (BMT CTN 0501) randomized children with hematologic malignancy to one or two cord blood unit (UCB) transplantation between 2006 and 2012. While the trial concluded that survival was similar regardless of number of units infused, survival was better than previously reported. This prompted a comparison of survival of trial versus non-trial patients to determine the generalizability of trial results and whether survival was better because of the trial treatment regimen...
July 3, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28680446/donor-selection-for-allogenic-hemopoietic-stem-cell-transplantation-clinical-and-ethical-considerations
#17
REVIEW
Irene Riezzo, Natascha Pascale, Raffaele La Russa, Arcangelo Liso, Monica Salerno, Emanuela Turillazzi
Allogenic hematopoietic progenitor cell transplantation (allo-HSCT) is an established treatment for many diseases. Stem cells may be obtained from different sources: mobilized peripheral blood stem cells, bone marrow, and umbilical cord blood. The progress in transplantation procedures, the establishment of experienced transplant centres, and the creation of unrelated adult donor registries and cord blood banks gave those without an human leucocyte antigen- (HLA-) identical sibling donor the opportunity to find a donor and cord blood units worldwide...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28679989/myelodysplastic-syndrome-with-myelofibrosis-in-which-azacitidine-therapy-was-effective-and-cord-blood-transplantation-was-carried-out
#18
Rie Ohba, Noriko Usui, Yuta Ito, Hirofumi Yamauchi, Tomohito Machishima, Hiroto Ishii, Ryoko Fukushima, Hiroki Yokoyama, Yuko Shiota, Yuichi Yahagi, Shingo Yano, Nobuaki Dobashi, Keisuke Aiba
Myelodysplastic syndrome with myelofibrosis (MDS-F) is a disease with a poor prognosis, and patients with this condition are at an increased risk of engraftment failures after allogeneic hematopoietic stem cell transplantation (SCT). Azacitidine (AZA) is effective in high-risk MDS patients. However, the effects of AZA on MDS-F have not been elucidated. AZA was administered to a 62-year-old male with MDS-F for 7 days at a dose of 75 mg/m(2). Hematological improvements were observed after only 1 course of treatment...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28678090/acute-myeloid-leukemia-in-a-patient-with-x-linked-severe-combined-immunodeficiency
#19
Tomonari Shigemura, Mitsuo Motobayashi, Kazuyuki Matsuda, Takahiro Shimodaira, Takashi Kurata, Norimoto Kobayashi, Kazunaga Agematsu, Yozo Nakazawa
Severe combined immunodeficiency (SCID) is a defect in the differentiation and function of T cells. An increased malignancy risk, mainly lymphatic malignancy, has been described in patients with SCID. We report a patient with X-linked SCID who developed acute myeloid leukemia, derived from the recipient with somatic NRAS mutation 4 months after cord blood transplantation (CBT). Loss of heterozygosity phenomenon of the recipient at 6q14 locus was observed at 2 months post-CBT and progressed to 6q deletion (6q-) chromosome abnormality...
July 3, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28675638/azacitidine-successfully-maintained-the-second-remission-in-an-infant-with-kmt2a-rearranged-acute-lymphoblastic-leukemia-who-relapsed-after-unrelated-cord-blood-transplantation
#20
Ikue Chijimatsu, Yusuke Imanaka, Daisuke Tomizawa, Mariko Eguchi, Shiho Nishimura, Shuhei Karakawa, Mizuka Miki, Kazuko Hamamoto, Naoto Fujita
The outcome for infants with KMT2A (MLL)-rearranged acute lymphoblastic leukemia (MLL-r ALL) is dismal despite intensive therapy, including hematopoietic stem cell transplantation (HSCT). Epigenetic dysregulation is considered a key driver of MLL-r leukemogenesis, which theoretically supports the use of epigenetic modifiers as a treatment option. We report an infant MLL-r ALL case with post-HSCT relapse. After achieving a second remission, which was maintained for 10 months using only the DNA methyltransferase inhibitor, azacitidine, the patient successfully received the second HSCT...
July 4, 2017: Pediatric Blood & Cancer
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