keyword
MENU ▼
Read by QxMD icon Read
search

total marrow irradiation

keyword
https://www.readbyqxmd.com/read/28408530/alternative-means-of-estimating-131-i-maximum-permissible-activity-to-treat-thyroid-cancer
#1
Kenneth J Nichols, William Robeson, Miyuki Yoshida-Hay, Pat B Zanzonico, Fritzgerald C Leveque, Kuldeep K Bhargava, Gene G Tronco, Christopher J Palestro
To protect bone marrow from over-irradiation, maximum permissible activity (MPA) of iodine-131 ((131)I) to treat thyroid cancer is that which limits absorbed dose to blood (as a surrogate of marrow) to < 200 cGy. The conventional approach (Method-1) requires repeated gamma-camera whole-body measurements along with blood samples. We sought to determine whether reliable MPA values can be obtained by simplified procedures. Methods: Data acquired over multiple time points were examined retrospectively for 65 thyroid cancer patients, referred to determine (131)I uptake and MPA for initial treatment following thyroidectomy (N = 39), including 17 patients with compromised renal function and 22 patients with known (N = 16) or suspected (N = 6) metastases...
April 13, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28396668/extracellular-vesicles-mediate-radiation-induced-systemic-bystander-signals-in-the-bone-marrow-and-spleen
#2
Tünde Szatmári, Dávid Kis, Enikő Noémi Bogdándi, Anett Benedek, Scott Bright, Deborah Bowler, Eszter Persa, Enikő Kis, Andrea Balogh, Lívia N Naszályi, Munira Kadhim, Géza Sáfrány, Katalin Lumniczky
Radiation-induced bystander effects refer to the induction of biological changes in cells not directly hit by radiation implying that the number of cells affected by radiation is larger than the actual number of irradiated cells. Recent in vitro studies suggest the role of extracellular vesicles (EVs) in mediating radiation-induced bystander signals, but in vivo investigations are still lacking. Here, we report an in vivo study investigating the role of EVs in mediating radiation effects. C57BL/6 mice were total-body irradiated with X-rays (0...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28396164/dose-escalation-of-total-marrow-irradiation-in-high-risk-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#3
Susanta Hui, Claudio Brunstein, Yutaka Takahashi, Todd DeFor, Shernan G Holtan, Veronika Bachanova, Christopher Wilke, Darren Zuro, Celalettin Ustun, Daniel Weisdorf, Kathryn Dusenbery, Michael R Verneris
Patients with refractory leukemia or minimal residual disease (MRD) at transplant have increased risk of relapse. Augmentation of irradiation, especially to sites of disease (i.e., bone marrow) is one potential strategy to overcome this risk. We studied the feasibility of radiation dose escalation in high risk patients using total marrow irradiation (TMI) in a phase I dose-escalation trial. Four pediatric and 8 adult patients received conditioning with cyclophosphamide and fludarabine in conjunction with image-guided radiation to the bone marrow at 15 Gy and 18 Gy (in 3 Gy/fractions), while maintaining the total body irradiation (TBI) dose to the vital organs (lungs, hearts, eyes, liver, kidneys) at <13...
April 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28362168/impact-of-abbreviated-filgrastim-schedule-on-survival-and-hematopoietic-recovery-after-irradiation-in-four-mouse-strains-with-different-radiosensitivity
#4
Merriline Satyamitra, Vidya P Kumar, Shukla Biswas, Lynnette Cary, Leonora Dickson, Srinivasan Venkataraman, Sanchita P Ghosh
Filgrastim (Neupogen(®), granulocyte-colony stimulating factor) is among the few countermeasures recommended for management of patients in the event of lethal total-body irradiation. Despite the plethora of studies using filgrastim as a radiation countermeasure, relatively little is known about the optimal dose schedule of filgrastim to mitigate radiation lethality. We evaluated the efficacy of filgrastim in improving 30-day survival of CD2F1 mice irradiated with a lethal dose (LD70/30) in the AFRRI cobalt-60 facility...
March 31, 2017: Radiation Research
https://www.readbyqxmd.com/read/28360858/saponins-from-sanguisorba-officinalis-improve-hematopoiesis-by-promoting-survival-through-fak-and-erk1-2-activation-and-modulating-cytokine-production-in-bone-marrow
#5
Xin Chen, Bogang Li, Yue Gao, Jianxin Ji, Zhongliu Wu, Shuang Chen
Radix Sanguisorbae, the root of Sanguisorba officinalis L. is used as traditional Chinese medicine. In recent decades, it has been reported to be clinically effective against myelosuppression induced by chemotherapy and/ or radiotherapy. However, the underlining mechanism has not been well studied. In this work, we evaluated the hematopoietic effect of total saponins from S. officinalis L. on myelosuppressive mice induced by cyclophosphamide and by(60)Co-γ-irradiation and confirmed the therapeutic effect. Then, we found total saponins and their characteristic constituents Ziyuglycoside I and Ziyuglycoside II can inhibit apoptosis of TF-1 cells caused by cytokine deprivation, and promote survival of mouse bone marrow nuclear cells through focal adhesion kinase (FAK) and extracellular signal-regulated kinase 1/2 (Erk1/2) activation in vitro...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28358695/induction-of-tgf-%C3%AE-by-irradiation-or-chemotherapy-in-fanconi-anemia-fa-mouse-bone-marrow-is-modulated-by-small-molecule-radiation-mitigators-jp4-039-and-mms350
#6
Michael W Epperly, Byung-Han Rhieu, Darcy Franicola, Tracy Dixon, Shaonan Cao, Xichen Zhang, Donna Shields, Hong Wang, Peter Wipf, Joel S Greenberger
BACKGROUND/AIM: Total-body irradiation and/or administration of chemotherapy drugs in bone marrow transplantation induce cytokines that can suppress engraftment. Fanconi Anemia (FA) patients have a hyperactive responsiveness to the inhibitory cytokine, transforming growth factor-beta (TGF-β). Small molecule radiation mitigator drugs, JP4-039 and MMS350, were evaluated for suppression of irradiation or drug-induced TGF-β. MATERIALS AND METHODS: In vivo induction of TGF-β by total-body ionizing irradiation (TBI), L-phenylalanine mustard (L-PAM), busulfan or fludarabine, was quantified...
March 2017: In Vivo
https://www.readbyqxmd.com/read/28351935/bidirectional-immune-tolerance-in-non-myeloablative-mhc-mismatched-bmt-for-murine-%C3%AE-thalassemia
#7
Shuyu E, Aman Seth, Peter Vogel, Matt Sommers, Taren Ong, Asha B Pillai
Non-myeloablative conditioning using total lymphoid irradiation (TLI) and rabbit anti-thymocyte serum (ATS) (the murine pre-clinical equivalent of anti-thymocyte globulin/ATG) facilitates immune tolerance after bone marrow transplantation (BMT) across major histocompatibility complex (MHC) disparities and may be a useful strategy for non-malignant disorders. We previously reported that donor effector T cell function and GVHD are regulated via recipient invariant natural killer T cell (iNKT cell) IL-4-driven expansion of donor Foxp3(+) naturally occurring Treg...
March 28, 2017: Blood
https://www.readbyqxmd.com/read/28332991/accelerated-total-lymphoid-irradiation-containing-salvage-regimen-for-patients-with-refractory-and-relapsed-hodgkin-lymphoma-20%C3%A2-years-of-experience
#8
Andreas Rimner, Shona Lovie, Meier Hsu, Monica Chelius, Zhigang Zhang, Karen Chau, Alison J Moskowitz, Matthew Matasar, Craig H Moskowitz, Joachim Yahalom
PURPOSE: We report the long-term results of integrated accelerated involved field radiation therapy (IFRT) followed by total lymphoid irradiation (TLI) as part of the high-dose salvage regimen followed by autologous bone marrow transplantation or autologous stem cell transplantation in patients with relapsed or refractory Hodgkin lymphoma (HL). METHODS AND MATERIALS: From November 1985 to July 2008, 186 previously unirradiated patients with relapsed or refractory HL underwent salvage therapy on 4 consecutive institutional review board-approved protocols...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28319565/bone-marrow-graft-versus-host-disease-in-major-histocompatibility-complex-matched-murine-reduced-intensity-allogeneic-hemopoietic-cell-transplantation
#9
Kifah Shahin, Zamil Mattar, Pablo Silveira, Wei-Hsun Hsu, Linda Bendall, Derek Hart, Kenneth F Bradstock
BACKGROUND: Most clinical allogeneic hemopoietic cell transplants (alloHCT) are now performed using reduced intensity conditioning (RIC) instead of myeloablative (MAC) conditioning, however, the biology underlying this treatment remains incompletely understood. METHODS: We investigated a murine model of major histocompatibility complex (MHC)-matched multiple minor histocompatibility antigen mismatched alloHCT, using bone marrow (BM) cells and splenocytes from B6 (H-2) donor mice transplanted into BALB...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28300366/internal-dosimetry-for-radioembolization-therapy-with-yttrium-90-microspheres
#10
Maryam Fallahpoor, Mehrshad Abbasi, Ali Asghar Parach, Faraz Kalantari
The absorbed doses in the liver and adjacent viscera in Yttrium-90 radioembolization therapy for metastatic liver lesions are not well-documented. We sought for a clinically practical way to determine the dosimetry of this advent treatment. Six different female XCAT BMIs and seven different male XCAT BMIs were generated. Using Monte Carlo GATE code simulation, the total of 100MBq (90) Y was deposited uniformly in the source organ, liver. Self-irradiation and absorbed doses in lung, kidney and bone marrow were calculated...
March 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28286617/allogeneic-hematopoietic-stem-cell-transplantation-for-adult-acute-lymphoblastic-leukemia-results-from-a-single-center-1993-2011
#11
Ipek Yonal-Hindilerden, Sevgi Kalayoglu-Besisik, Nuray Gurses-Koc, Fehmi Hindilerden, Deniz Sargin
Background: For adult ALL patients, the indications and appropriate timing of allogeneic hematopoietic stem cell transplantation (AHSCT) continue to be debated. The primary aim of this single-institution study was to compare the results of our adult ALL patients that had been allografted with those reported in the current literature. Subjects and Methods: This study included 53 consecutive adults with acute lymphoblastic leukemia (ALL) who underwent allogeneic hematopoietic stem cell transplantation (AHSCT) with myeloablative (92%) and reduced-intensity (8%) conditioning between 1993 and 2011...
January 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28279220/short-course-rapamycin-treatment-enables-engraftment-of-immunogenic-gene-engineered-bone-marrow-under-low-dose-irradiation-to-permit-long-term-immunological-tolerance
#12
Kunal H Bhatt, Rajeev Rudraraju, Jeremy F Brooks, Ji-Won Jung, Ryan Galea, James W Wells, Raymond J Steptoe
BACKGROUND: Application of genetically modified hematopoietic stem cells is increasingly mooted as a clinically relevant approach to protein replacement therapy, immune tolerance induction or conditions where both outcomes may be helpful. Hematopoietic stem and progenitor cell (HSPC)-mediated gene therapy often requires highly toxic pretransfer recipient conditioning to provide a 'niche' so that transferred HSPCs can engraft effectively and to prevent immune rejection of neoantigen-expressing engineered HSPCs...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28274393/low-dose-cranial-boost-in-high-risk-adult-acute-lymphoblastic-leukemia-patients-undergoing-bone-marrow-transplant
#13
William Su, Marcher Thompson, Ren-Dih Sheu, Amir Steinberg, Luis Isola, Richard Stock, Richard L Bakst
PURPOSE: Acute lymphoblastic leukemia (ALL) has a predilection for CNS involvement. Patients with high-risk ALL are often managed with transplant using a radiation-based conditioning regimen. Historically, a high-dose prophylactic cranial boost (CB) of ≥12 Gy was given to reduce risk of central nervous system (CNS) recurrence. However, the use of CB has fallen out of favor because of toxicity concerns. In high-risk adults undergoing transplant at our institution, we have used a low-dose 6 Gy CB to reduce toxicity while conditioning adults with fully developed brains...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28244416/longitudinal-changes-in-active-bone-marrow-for-cervical-cancer-patients-treated-with-concurrent-chemoradiation-therapy
#14
Sonal S Noticewala, Nan Li, Casey W Williamson, Carl K Hoh, Hanjie Shen, Michael T McHale, Cheryl C Saenz, John Einck, Steven Plaxe, Florin Vaida, Catheryn M Yashar, Loren K Mell
PURPOSE: To quantify longitudinal changes in active bone marrow (ABM) distributions within unirradiated (extrapelvic) and irradiated (pelvic) bone marrow (BM) in cervical cancer patients treated with concurrent chemoradiation therapy (CRT). METHODS AND MATERIALS: We sampled 39 cervical cancer patients treated with CRT, of whom 25 were treated with concurrent cisplatin (40 mg/m(2)) and 14 were treated with cisplatin (40 mg/m(2)) plus gemcitabine (50-125 mg/m(2)) (C/G)...
March 15, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28243358/hydrogen-rich-water-ameliorates-total-body-irradiation-induced-hematopoietic-stem-cell-injury-by-reducing-hydroxyl-radical
#15
Junling Zhang, Xiaolei Xue, Xiaodan Han, Yuan Li, Lu Lu, Deguan Li, Saijun Fan
We examined whether consumption of hydrogen-rich water (HW) could ameliorate hematopoietic stem cell (HSC) injury in mice with total body irradiation (TBI). The results indicated that HW alleviated TBI-induced HSC injury with respect to cell number alteration and to the self-renewal and differentiation of HSCs. HW specifically decreased hydroxyl radical ((∙)OH) levels in the c-kit(+) cells of 4 Gy irradiated mice. Proliferative bone marrow cells (BMCs) increased and apoptotic c-kit(+) cells decreased in irradiated mice uptaken with HW...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28238449/the-feasibility-of-semi-automatically-generated-red-bone-marrow-segmentations-based-on-mr-only-for-patients-with-gynecologic-cancer
#16
Anna Andreychenko, Petra S Kroon, Matteo Maspero, Ina Jürgenliemk-Schulz, Astrid A C De Leeuw, Marnix G E H Lam, Jan J W Lagendijk, Cornelis A T van den Berg
PURPOSE: For patients with cervical cancer the delivery of chemotherapy with radiotherapy improves survival compared with radiotherapy alone. However, high rates of acute hematologic toxicity occur when combining both therapies due to the damage of the red bone marrow (RBM). This study aimed to reduce the radiation damage to the RBM. A tool has been developed for semi-automatic delineation of the red bone marrow based on MR-only. This delineation can be included into the treatment planning process to reduce the volume of RBM irradiated in patients receiving pelvic radiation therapy...
February 23, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28238121/leukocyte-inos-is-required-for-inflammation-and-pathological-remodeling-in-ischemic-heart-failure
#17
Justin R Kingery, Tariq Hamid, Robert K Lewis, Mohamed Ameen Ismahil, Shyam S Bansal, Gregg Rokosh, Tim M Townes, Suzanne T Ildstad, Steven P Jones, Sumanth D Prabhu
In the failing heart, iNOS is expressed by both macrophages and cardiomyocytes. We hypothesized that inflammatory cell-localized iNOS exacerbates left ventricular (LV) remodeling. Wild-type (WT) C57BL/6 mice underwent total body irradiation and reconstitution with bone marrow from iNOS(-/-) mice (iNOS(-/-)c) or WT mice (WTc). Chimeric mice underwent coronary ligation to induce large infarction and ischemic heart failure (HF), or sham surgery. After 28 days, as compared with WTc sham mice, WTc HF mice exhibited significant (p < 0...
March 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28211939/allogeneic-hematopoietic-cell-transplantation-for-primary-refractory-acute-lymphoblastic-leukemia-a-report-from-the-acute-leukemia-working-party-of-the-ebmt
#18
Jiří Pavlů, Myriam Labopin, Anna K Zoellner, Ioanna Sakellari, Matthias Stelljes, Jürgen Finke, Renato Fanin, Gernot Stuhler, Boris V Afanasyev, Adrian J Bloor, Achilles Anagnostopoulos, Mohamad Mohty, Sebastian Giebel, Arnon Nagler
BACKGROUND: Patients with primary refractory acute lymphoblastic leukemia (PREF ALL) who fail to achieve a complete remission (CR) after ≥2 courses of chemotherapy have a dismal prognosis without undergoing allogeneic hematopoietic cell transplantation (HCT). To the authors' knowledge, there currently are no data regarding factors influencing transplantation outcomes. METHODS: The authors retrospectively studied outcomes of transplantation for cases of PREF ALL reported to European Society for Blood and Marrow Transplantation registry...
February 17, 2017: Cancer
https://www.readbyqxmd.com/read/28194655/practical-time-considerations-for-optically-stimulated-luminescent-dosimetry-osld-in-total-body-irradiation
#19
Martin Butson, Mamoon Haque, Leon Smith, Ethan Butson, David Odgers, Dane Pope, Tina Gorjiana, May Whitaker, Johnny Morales, Angela Hong, Robin Hill
Total body irradiation (TBI) treatments are used to treat the whole body in preparation for hematopoietic stem cell (or bone marrow) transplantation. Our standard clinical regimen is a 12 Gy in 6 fraction, bi-daily technique using 6 MV X-rays at an extended Source-to-Surface distance (SSD) of 300 cm. Utilizing these characteristics, the beam dose rate is reduced below 7 cGy/min as is standard for TBI treatment. Dose received by the patient is monitored using optically stimulated luminescent dosimetry (OSLD)...
February 13, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28192252/the-bottom-line-total-marrow-and-lymphoid-irradiation-to-rescue-refractory-leukemia
#20
Pritesh R Patel, Damiano Rondelli
No abstract text is available yet for this article.
February 10, 2017: Biology of Blood and Marrow Transplantation
keyword
keyword
121167
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"