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antithymocyte globulin

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https://www.readbyqxmd.com/read/29456214/outcome-of-renal-transplant-recipients-with-cytomegalovirus-and-bk-polyomavirus-co-infection-nephropathy
#1
Anupma Kaul, Shashi Kumar, Dharmendra Bhaduaria, Vinita Agrawal, R K Sharma, Narayan Prasad, Amit Gupta, Rishi Kumar
Reactivation of cytomegalovirus (CMV) and BK polyomavirus (BKV) can result in virus-associated tubulointerstitial nephritis in renal allografts. All those renal biopsies reported as viral cytopathic were isolated and examined by two independent renal histopathologists from our institute and classified as CMV, BKV, and CMV-BKV coinfection-associated viral cytopathic changes with confirmation through polymerase chain reaction technology in either serum or urine or both. All twenty patients were categorized as 10 in CMV, four in BKV, and six were in CMV-BKV coinfection...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29446251/a-novel-technique-for-en-bloc-kidney-transplantation-from-infant-donors-with-extremely-low-body-weight-by-using-the-distal-abdominal-aorta-as-an-outflow-tract
#2
Helong Dai, Longkai Peng, Fenghua Peng, Gongbin Lan, Yu Wang, Jingjing Chen, Lei Liu, Chen Gao, Yong Guo, Chunhua Fang, Manhua Nie, Wang Long, Shaojie Yu
Pediatric kidney donors remain underutilized due to the high risk of postoperative thrombosis. To address this problem, we developed a novel en bloc kidney transplantation technique using donor thoracic aorta and the distal abdominal aorta as inflow and outflow tracts, respectively. Briefly, 8 kidneys from deceased infant donors under 5 months old and with low body weight (1.9-4.9 kg) were transplanted en bloc into 4 pediatric and 4 adult patients. The donor's common iliac artery or external iliac artery was anastomosed to the recipient's distal external iliac artery or inferior epigastric artery, respectively, as an outflow tract...
February 15, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29434791/efficacy-and-safety-of-combined-immunosuppressive-therapy-plus-umbilical-cord-blood-infusion-in-severe-aplastic-anemia-patients-a-cohort-study
#3
Xiu Luo, Huina Lu, Bing Xiu, Hao Wu, Bing Li, Ping Li, Yuhua Chen, Lili Zhou, Wenjun Zhang, Yan Dong, Aibin Liang, Yi Ding
The present study aimed to evaluate the efficacy and safety of combined immunosuppressive therapy (IST) plus umbilical cord blood infusion (UCBI) in severe aplastic anemia (SAA) patients. A total of 68 patients with SAA were enrolled in the current prospective cohort study and divided into the IST (n=35; positive control) and IST+UCBI (n=33; experimental) groups according to the treatment conditions. Patients in the IST group were treated with rabbit antithymocyte globulin (r-ATG) at a dose of 2.5 mg/kg through intravenous infusion once a day for five days...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29432302/allogeneic-matched-related-donor-bone-marrow-transplantation-for-pediatric-patients-with-severe-aplastic-anemia-using-low-dose-cyclophosphamide-atg-plus-fludarabine
#4
Chayamon Takpradit, Susan E Prockop, Nancy A Kernan, Andromachi Scaradavou, Kevin Curran, Julianne Ruggiero, Nicole Zakak, Richard J O'Reilly, Farid Boulad
BACKGROUND: The combination of cyclophosphamide (CY) and antithymocyte globulin (ATG) has been used as a standard conditioning regimen for matched related donor transplantation in patients with severe aplastic anemia. PROCEDURE: To decrease the regimen-related toxicity while maintaining appropriate engraftment and survival rates, fludarabine (FLU) was added to the regimen. Four pediatric patients received matched related donor bone marrow transplantation with CY (50 mg/kg×2) (instead of the 50 mg/kg×4 standard dosing), equine ATG (30 mg/kg×3), with the addition of FLU (30 mg/m×4)...
February 9, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29431621/haploidentical-hsct-for-hemoglobinopathies-improved-outcomes-with-tcr%C3%AE-%C3%AE-cd19-depleted-grafts
#5
Javid Gaziev, Antonella Isgrò, Pietro Sodani, Katia Paciaroni, Gioia De Angelis, Marco Marziali, Michela Ribersani, Cecilia Alfieri, Alessandro Lanti, Tiziana Galluccio, Gaspare Adorno, Marco Andreani
We examined outcomes of haploidentical hematopoietic cell transplantation (haplo-HCT) using T-cell receptor αβ + (TCRαβ + )/CD19 + -depleted grafts (TCR group, 14 patients) in children with hemoglobinopathies. Patients received a preparative regimen consisting of busulfan, thiotepa, cyclophosphamide, and antithymocyte globulin preceded by fludarabine, hydroxyurea, and azathioprine. The median follow-up among surviving patients was 3.9 years. The 5-year probabilities of overall survival (OS) and disease-free survival (DFS) were 84% and 69%, respectively...
February 13, 2018: Blood Advances
https://www.readbyqxmd.com/read/29412785/fine-tuning-antithymocyte-globulin-dosing-and-harmonizing-clinical-trial-design
#6
Jaap Jan Boelens, Rick Admiraal, Jurgen Kuball, Stefan Nierkens
No abstract text is available yet for this article.
February 7, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29409729/acquired-amegakaryocytic-thrombocytopenia-and-red-cell-aplasia-in-a-patient-with-thymoma-progressing-to-aplastic-anemia-successfully-treated-with-allogenic-stem-cell-transplantation
#7
Aron Simkins, Abhishek Maiti, Nicholas J Short, Nitin Jain, Uday Popat, Keyur P Patel, Thein H Oo
Association of pure red-cell aplasia with thymoma is well documented. However, acquired amegakaryocytic thrombocytopenia (AAMT) has been rarely associated with thymoma with only five reported cases in literature. We report a patient with thymoma complicated by pure red cell aplasia (PRCA) and AAMT who progressed to develop aplastic anemia (AA). The patient was refractory to 10-months of immunosuppressive therapy with cyclosporine, prednisone, and antithymocyte globulin. She was eventually treated with allogeneic stem cell transplantation (allo-SCT)...
January 31, 2018: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/29377260/nationwide-survey-on-the-use-of-horse-antithymocyte-globulins-atgam-in-patients-with-acquired-aplastic-anemia-a-report-on-behalf-of-the-french-reference-center-for-aplastic-anemia
#8
Régis Peffault de Latour, Reza Tabrizi, Ambroise Marcais, Thierry Leblanc, Thierry Lamy, Mohamad Mohty, Suzanne Tavitian, Charlotte Jubert, Marlène Pasquet, Claire Galambrun, Stéphanie Nguyen, Jean Yves Cahn, Thorsten Braun, Eric Deconinck, Jacques Olivier Bay, Flore Sicre de Fontbrune, Fiorenza Barraco, Gérard Socié
Antithymocyte globulins (ATG) plus cyclosporine (CSA) is the gold standard immunosuppressive treatment (IST) for patients with aplastic anemia. A prospective randomized trial showed in 2011 that hATG was superior to rabbit ATG for first-line treatment of severe AA. The French Health Agency (ANSM) permitted a patient-named Authorization for Temporary Use (ATU) program of hATG (ATGAM, Pfizer) in patients with AA in 2011 since commercial access to hATG is not approved. We took advantage of this program to analyze the outcomes of 465 patients who received ATGAM plus CSA as first line treatment (n=379; 81...
January 27, 2018: American Journal of Hematology
https://www.readbyqxmd.com/read/29330393/haploidentical-bone-marrow-transplantation-with-post-transplant-cyclophosphamide-for-patients-with-x-linked-adrenoleukodystrophy-a-suitable-choice-in-an-urgent-situation
#9
Juliana Folloni Fernandes, Carmem Bonfim, Fábio Rodrigues Kerbauy, Morgani Rodrigues, Iracema Esteves, Nathalia Halley Silva, Alessandra Prandini Azambuja, Luiz Fernando Mantovani, José Mauro Kutner, Gisele Loth, Cilmara Cristina Kuwahara, Clarissa Bueno, Andrea Tiemi Kondo, Andreza Alice Feitosa Ribeiro, Fernando Kok, Nelson Hamerschlak
Allogeneic hematopoietic stem cell transplantation (HSCT) is the only treatment that enhances survival and stabilizes neurologic symptoms in X-linked adrenoleukodystrophy (X-ALD) with cerebral involvement, a severe demyelinating disease of childhood. Patients with X-ALD who lack a well-matched HLA donor need a rapid alternative. Haploidentical HSCT using post transplant cyclophosphamide (PT/Cy) has been performed in patients with malignant and nonmalignant diseases showing similar outcomes compared to other alternative sources...
January 12, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29330391/impact-of-antithymocyte-globulin-doses-in-reduced-intensity-conditioning-before-allogeneic-transplantation-from-matched-sibling-donor-for-patients-with-acute-myeloid-leukemia-a-report-from-the-acute-leukemia-working-party-of-european-group-of-bone-marrow-transplantation
#10
Raynier Devillier, Myriam Labopin, Patrice Chevallier, Marie-Pierre Ledoux, Gérard Socié, Anne Huynh, Jean-Henri Bourhis, Jean-Yves Cahn, Gabrielle Roth-Guepin, Ghulam Mufti, Déborah Desmier, Mauricette Michallet, Nathalie Fegueux, Fabio Ciceri, Fréderic Baron, Didier Blaise, Arnon Nagler, Mohamad Mohty
Antithymocyte globulin (ATG) is commonly used for graft-vs.-host disease (GVHD) prophylaxis in unrelated donor allogeneic transplantation (Allo-HSCT). However, its use is still controversial in matched sibling donor (MSD) Allo-HSCT, notably after reduced intensity conditioning (RIC). ATG dose may influence the outcome, explaining in part the discordant conclusions in MSD Allo-HSCT. We, therefore, analyzed the impact of ATG doses in patients with acute myeloid leukemia in first complete remission undergoing RIC Allo-HSCT from a MSD...
January 12, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29303612/the-effect-of-induction-therapy-on-established-cmv-specific-t-cell-immunity-in-living-donor-kidney-transplantation
#11
L Stranavova, P Hruba, E Girmanova, I Tycova, A Slavcev, J Fronek, J Slatinska, P Reinke, H-D Volk, O Viklicky
Cytomegalovirus (CMV) infection influences both short and long term outcomes in immunosuppressed organ transplant recipients. The aim of this study was to evaluate the effect of different induction immunosuppression regimens on CMV specific T cell response in patients with already established CMV immunity. In 24 seropositive living donor kidney recipients, the frequency of CMV specific T cells was determined by ELISPOT (Enzyme-Linked ImmunoSpot) assay prior and 6 months after transplantation. Recipients' peripheral blood mononuclear cells were stimulated with immediate-early (IE1) and phosphoprotein 65 (pp65) CMV-derived peptide pools and the number of cells producing interferon gamma (IFN-gamma) was assessed...
January 5, 2018: Physiological Research
https://www.readbyqxmd.com/read/29301129/amegakaryocytic-thrombocytopenia-and-subsequent-aplastic-anemia-associated-with-apparent-epstein-barr-virus-infection
#12
Ilana Levy, Ruth Laor, Nizar Jiries, Jacob Bejar, Aaron Polliack, Tamar Tadmor
Acquired amegakaryocytic thrombocytopenia (AAT), a rare entity characterized by severe thrombocytopenia and the absence of megakaryocytes in the bone marrow, may mimic or precede the diagnosis of aplastic anemia (AA). Here, we describe a patient who presented with apparent Epstein-Barr virus (EBV)-associated immune thrombocytopenia resistant to several lines of therapies, which was in fact a form of AAT with some features of AA. He eventually responded to therapy with eltrombopag, cyclosporine A (CSA), and antithymocyte globulin (ATG) and recovered completely...
January 5, 2018: Acta Haematologica
https://www.readbyqxmd.com/read/29296777/hla-mismatched-unrelated-donor-transplantation-using-tli-atg-conditioning-has-a-low-risk-of-gvhd-and-potent-antitumor-activity
#13
Michael A Spinner, Marcelo Fernández-Viña, Lisa E Creary, Olivia Quinn, Linda Elder, Sally Arai, Laura J Johnston, Everett H Meyer, David B Miklos, Lori S Muffly, Robert S Negrin, Judith A Shizuru, Wen-Kai Weng, Ginna G Laport, Samuel Strober, Robert Lowsky, Andrew R Rezvani
Many patients lack a fully HLA-matched donor for hematopoietic cell transplantation (HCT), and HLA mismatch is typically associated with inferior outcomes. Total lymphoid irradiation and antithymocyte globulin (TLI-ATG) is a nonmyeloablative conditioning regimen that is protective against graft-versus-host disease (GVHD), and we hypothesized that the protective effect would extend beyond HLA-matched donors. We report outcomes for all consecutively transplanted patients at Stanford University from December 2001 through May 2015 who received TLI-ATG conditioning and HCTs from 8 to 9 out of 10 HLA-mismatched unrelated donors (MMUDs, N = 72) compared with 10 out of 10 HLA-matched unrelated donors (MUDs, N = 193)...
July 25, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296709/the-impact-of-hla-matching-on-outcomes-of-unmanipulated-haploidentical-hsct-is-modulated-by-gvhd-prophylaxis
#14
Francesca Lorentino, Myriam Labopin, Katharina Fleischhauer, Fabio Ciceri, Carlheinz R Mueller, Annalisa Ruggeri, Avichai Shimoni, Martin Bornhäuser, Andrea Bacigalupo, Zafer Gülbas, Yener Koc, William Arcese, Benedetto Bruno, Johanna Tischer, Didier Blaise, Giuseppe Messina, Dietrich W Beelen, Arnon Nagler, Mohamad Mohty
Haploidentical hematopoietic stem cell transplantation (haplo-HSCT) with unmanipulated grafts is increasingly adopted for high-risk acute leukemia, with acute graft-versus-host disease (aGVHD) prophylaxis based on antithymocyte globulin (ATG) or posttransplant cyclophosphamide (PTCy) as main platforms. No consensus exists on selection criteria over several haploidentical donors. We evaluated the impact of donor-recipient antigenic and allelic HLA-A, -B, -C, and -DRB1 mismatches on mismatched haplotype on outcomes of 509 unmanipulated haplo-HSCTs performed for acute leukemia under a PTCy (N = 313) or ATG (N = 196) regimen...
April 25, 2017: Blood Advances
https://www.readbyqxmd.com/read/29279473/false-elevation-of-the-blood-tacrolimus-concentration-as-assessed-by-an-affinity-column-mediated-immunoassay-acmia-led-to-acute-t-cell-mediated-rejection-after-kidney-transplantation-a-case-report
#15
Momoko Kono, Jumpei Hasegawa, Hina Ogawa, Kanae Yoshikawa, Ayumi Ishiwatari, Sachiko Wakai, Kazunari Tanabe, Hiroki Shirakawa
Tacrolimus is the most commonly used immunosuppressant. Because of its narrow therapeutic range, it is necessary to frequently monitor its concentration. We report the case of a 25-year-old man who underwent kidney transplantation whose tacrolimus concentrations, as measured by an affinity column-mediated immunoassay, were falsely elevated. As we reduced the dose of tacrolimus, the recipient developed T cell-mediated rejection. Using the same blood samples, an enzyme-multiplied immunoassay technique showed that the patient's levels of tacrolimus were extremely low...
December 27, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29250828/cd4-cd25hi-foxp3-regulatory-t-cells-in-long-term-cardiac-xenotransplantation
#16
Avneesh K Singh, Joshua L Chan, Caleb N Seavey, Philip C Corcoran, Robert F Hoyt, Billeta G T Lewis, Marvin L Thomas, David L Ayares, Keith A Horvath, Muhammad M Mohiuddin
BACKGROUND: CD4+CD25Hi FoxP3+ T (Treg) cells are a small subset of CD4+ T cells that have been shown to exhibit immunoregulatory function. Although the absolute number of Treg cells in peripheral blood lymphocytes (PBL) is very small, they play an important role in suppressing immune reactivity. Several studies have demonstrated that the number of Treg cells, rather than their intrinsic suppressive capacity, may contribute to determining the long-term fate of transplanted grafts. In this study, we analyzed Treg cells in PBL of long-term baboon recipients who have received genetically modified cardiac xenografts from pig donors...
December 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29237659/long-term-follow-up-of-hepatitis-associated-aplastic-anaemia
#17
Cristina Gonçalves, Sandra Ferreira, Susana Nobre, Isabel Gonçalves
Prognosis of hepatitis-associated aplastic anaemia (HAAA) was improved with haematopoietic stem cell transplantation (HSCT) and immunosuppression, but the long-term outcome remains undefined. Case 1: a girl aged 3 years with acute liver failure (ALF) submitted to orthotopic liver transplantation (OLT) subsequently developed aplastic anaemia and HSCT from a compatible sibling was performed. Post-HSCT, the patient developed post-transplant lymphoproliferative disorder and rituximab was administered with good response...
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29231256/chemotherapy-induced-eccrine-squamous-syringometaplasia-in-an-infant
#18
Peter G Bittar, Megan Casady, Maria A Selim, Neil S Prose
There are few reports of chemotherapy-induced eccrine squamous syringometaplasia in children. We report the first case of an infant developing this condition after treatment with busulfan, fludarabine, and antithymocyte globulin in preparation for bone marrow transplantation. Twenty-eight days after transplantation, the infant developed faintly erythematous papules and plaques on the bilateral axillae, inguinal folds, and sites of adhesives. Punch biopsy revealed eccrine glands with dyskeratotic cells and focal squamous metaplasia consistent with chemotherapy-induced eccrine squamous syringometaplasia...
December 12, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/29225252/reactivation-of-hemophagocytic-lymphohistiocytosis-triggered-by-antithymocyte-globulin
#19
Kensuke Matsuda, Kazuhiro Toyama, Takashi Toya, Masako Ikemura, Fumihiko Nakamura, Mineo Kurokawa
A 16-year-old boy with Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (HLH) underwent allogeneic hematopoietic stem cell transplantation after conditioning with fludarabine, melphalan, total body irradiation, and rabbit antithymocyte globulin (ATG). A severe, persistent infusion reaction occurred after the initial administration of ATG. Investigations showed a rapid increase in the levels of liver enzymes and ferritin, and the reactivation of HLH was confirmed by marked hemophagocytosis in the bone marrow...
December 8, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29220082/benefits-of-multimodal-enhanced-recovery-pathway-in-patients-undergoing-kidney-transplantation
#20
Kevin A Espino, J Reinier F Narvaez, Michael C Ott, Liise K Kayler
BACKGROUND: Use of enhanced recovery after surgery (ERAS) pathways to accelerate functional recovery and reduce length of stay (LOS) has rarely been investigated in kidney transplantation (KTX). MATERIALS AND METHODS: Consecutive adult isolated KTXs between July 2015 and July 2016 (ERAS, n = 139) were compared with a historical cohort between January 2014 and July 2015 (HISTORIC, n = 95). RESULTS: Enhanced recovery after surgery recipients were significantly more likely to receive kidneys that were non-local (56...
December 8, 2017: Clinical Transplantation
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