keyword
MENU ▼
Read by QxMD icon Read
search

radiation enteritis

keyword
https://www.readbyqxmd.com/read/28800285/cytogenetic-reconstruction-of-gamma-ray-doses-delivered-to-atomic-bomb-survivors-dealing-with-wide-distributions-of-photon-energies-and-contributions-from-hematopoietic-stem-progenitor-cells
#1
Nori Nakamura, Yuko Hirai, Yoshiaki Kodama, Kanya Hamasaki, Harry M Cullings, Kismet A Cordova, Akio Awa
Retrospective estimation of the doses received by atomic bomb (A-bomb) survivors by cytogenetic methods has been hindered by two factors: One is that the photon energies released from the bomb were widely distributed, and since the aberration yield varies depending on the energy, the use of monoenergetic (60)Co gamma radiation to construct a calibration curve may bias the estimate. The second problem is the increasing proportion of newly formed lymphocytes entering into the lymphocyte pool with increasing time intervals since the exposures...
August 11, 2017: Radiation Research
https://www.readbyqxmd.com/read/28798812/clinical-epidemiological-and-therapeutic-profile-of-patients-with-a-retinoblastoma-diagnosis-experience-in-the-costa-rica-national-children-s-hospital-oncology-unit-from-january-2009-to-december-2015
#2
Jennie Chen Lo, Carlos Rodríguez, Rigoberto Monestel, Arnoldo Zúñiga
INTRODUCTION: Retinoblastoma represents only 3% of paediatric cancers, but it is the most prevalent intraocular tumour in this population. It develops in the retina as a primitive neuroectodermal tumour that affects development during gestation. The tumour presents in two different forms depending on whether or not it expresses a genetic modification. For patients diagnosed at preschool age, 75% are unilateral non-hereditary cases. While enucleation is the preferred treatment for advanced stages of the tumour, other modalities, such as systemic and intraocular chemotherapy, radiotherapy and local treatments with thermotherapy, cryotherapy, and brachytherapy can be used to try to preserve the eye...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28791257/what-the-sif-is-happening-the-role-of-intracellular-salmonella-induced-filaments
#3
REVIEW
Katelyn Knuff, B Brett Finlay
A common strategy among intracellular bacterial pathogens is to enter into a vacuolar environment upon host cell invasion. One such pathogen, Salmonella enterica, resides within the Salmonella-containing vacuole (SCV) inside epithelial cells and macrophages. Salmonella hijacks the host endosomal system to establish this unique intracellular replicative niche, forming a highly complex and dynamic network of Salmonella-induced filaments (SIFs). SIFs radiate outwards from the SCV upon onset of bacterial replication...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28758339/mitofusin-1-and-optic-atrophy-1-shift-metabolism-to-mitochondrial-respiration-during-aging
#4
Jyung Mean Son, Ehab H Sarsour, Anurag Kakkerla Balaraju, Jenna Fussell, Amanda L Kalen, Brett A Wagner, Garry R Buettner, Prabhat C Goswami
Replicative and chronological lifespan are two different modes of cellular aging. Chronological lifespan is defined as the duration during which quiescent normal cells retain their capacity to re-enter the proliferative cycle. This study investigated whether changes in metabolism occur during aging of quiescent normal human fibroblasts (NHFs) and the mechanisms that regulate these changes. Bioenergetics measurements were taken in quiescent NHFs from younger (newborn, 3-day, 5-month, and 1-year) and older (58-, 61-, 63-, 68-, and 70-year) healthy donors as well as NHFs from the same individual at different ages (29, 36, and 46 years)...
July 31, 2017: Aging Cell
https://www.readbyqxmd.com/read/28751442/towards-precision-radiotherapy-for-use-with-immune-checkpoint-blockers
#5
Claire Vanpouille-Box, Silvia C Formenti, Sandra Demaria
The first evidence that radiation therapy (RT) enhances the efficacy of immune checkpoint blockers (ICBs) was obtained a dozen years ago in a mouse model of metastatic carcinoma refractory to anti-CTLA-4 treatment. At the time, ICBs had just entered clinical testing, an endeavor that culminated in 2011 with the approval of the first anti-CTLA-4 antibody for use in metastatic melanoma patients (ipilimumab). Thereafter, some patients progressing on ipilimumab showed systemic responses only upon receiving radiation to one lesion, confirming clinically the pro-immunogenic effects of radiation...
July 27, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28749742/computed-tomographic-evaluation-of-posttreatment-soft-tissue-changes-by-using-a-lymphedema-scoring-system-in-patients-with-oral-cancer
#6
Masaya Akashi, Shun Teraoka, Yasumasa Kakei, Junya Kusumoto, Takumi Hasegawa, Tsutomu Minamikawa, Kazunobu Hashikawa, Takahide Komori
BACKGROUND: This study aimed to evaluate posttreatment soft-tissue changes in patients with oral cancer with computed tomography (CT). To accomplish that purpose, a scoring system was established, referring to the criteria of lower leg lymphedema (LE). METHODS AND RESULTS: One hundred and six necks in 95 patients who underwent oral oncologic surgery with neck dissection (ND) were analyzed retrospectively using routine follow-up CT images. A two-point scoring system to evaluate soft-tissue changes (so-called "LE score") was established as follows: Necks with a "honeycombing" appearance were assigned 1 point...
July 27, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28743614/sustainable-pollutant-removal-by-periphytic-biofilm-via-microbial-composition-shifts-induced-by-uneven-distribution-of-ceo2-nanoparticles
#7
Jun Tang, Ningyuan Zhu, Yan Zhu, Seyed Morteza Zamir, Yonghong Wu
The responses of periphytic biofilm to CeO2 nanoparticle (CNP) exposure were explored by investigating community shifts and pollutant removal. Results showed that CNPs entered the sensitive microbial cells in the periphytic biofilm, leading to cytomembrane damage and intracellular reactive oxygen species (ROS) generation. The periphytic biofilm communities were, however, able to adapt to the prolonged exposure and maintain their pollutant removal (i.e., phosphorus, nitrogen and copper, organic matter) performance...
July 14, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28740896/the-big-data-effort-in-radiation-oncology-data-mining-or-data-farming
#8
REVIEW
Charles S Mayo, Marc L Kessler, Avraham Eisbruch, Grant Weyburne, Mary Feng, James A Hayman, Shruti Jolly, Issam El Naqa, Jean M Moran, Martha M Matuszak, Carlos J Anderson, Lynn P Holevinski, Daniel L McShan, Sue M Merkel, Sherry L Machnak, Theodore S Lawrence, Randall K Ten Haken
Although large volumes of information are entered into our electronic health care records, radiation oncology information systems and treatment planning systems on a daily basis, the goal of extracting and using this big data has been slow to emerge. Development of strategies to meet this goal is aided by examining issues with a data farming instead of a data mining conceptualization. Using this model, a vision of key data elements, clinical process changes, technology issues and solutions, and role for professional societies is presented...
October 2016: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28735719/treatment-with-chemotherapy-and-cognitive-functioning-among-older-adult-cancer-survivors
#9
Ruth T Morin, Elizabeth Midlarsky
OBJECTIVE: To investigate whether treatment of cancer with chemotherapy, when compared to surgery and radiation, differentially affects cognitive functioning among older adults. DESIGN: Data were examined prospectively from two years prior to cancer diagnosis to four years after cancer diagnosis. Distinct classes of cognitive functioning were identified using latent class growth analysis techniques (LCGA). Treatment type was assessed as a predictor of class membership...
July 20, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28714110/poly-vinylpyrollidone-and-selenocysteine-modified-bi2-se3-nanoparticles-enhance-radiotherapy-efficacy-in-tumors-and-promote-radioprotection-in-normal-tissues
#10
Jiangfeng Du, Zhanjun Gu, Liang Yan, Yuan Yong, Xuan Yi, Xiao Zhang, Jing Liu, Renfei Wu, Cuicui Ge, Chunying Chen, Yuliang Zhao
The development of a new generation of nanoscaled radiosensitizers that can not only enhance radiosensitization of tumor tissues, but also increase radioresistance of healthy tissue is highly desirable, but remains a great challenge. Here, this paper reports a new versatile theranostics based on poly(vinylpyrollidone)- and selenocysteine-modified Bi2 Se3 nanoparicles (PVP-Bi2 Se3 @Sec NPs) for simultaneously enhancing radiotherapeutic effects and reducing the side-effects of radiation. The as-prepared nanoparticles exhibit significantly enhanced free-radical generation upon X-ray radiation, and remarkable photothermal effects under 808 nm NIR laser irradiation because of their strong X-ray attenuation ability and high NIR absorption capability...
July 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28711774/a-rotating-slit-collimator-based-gamma-radiation-mapper
#11
Jonas M C Nilsson, Robert R Finck, Christopher L Rääf
For situations with radioactive material out of control where it may be physically difficult or prohibited to access areas close to the source, measurements from distance may be the only way to assess the radiation environment. Using collimated detectors will provide means to locate the direction of the radiation from the source. To investigate the possibilities of mapping gamma emitting radioactive material in a closed non-enterable area, a tentative system for mapping radioactive materials from a distance was built...
July 13, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28699409/review-of-the-effectiveness-of-enteral-feeding-in-pediatric-oncology-patients
#12
Kaleena Trimpe, Michele R Shaw, Marian Wilson, Mel R Haberman
Enteral supplementation for nutritional support in pediatric oncology patients remains nonstandardized across institutions and between providers. Pediatric oncology patients frequently fail to meet their growth curve percentiles, lose weight, and/or are malnourished due to both the oncologic process as well as side effects from chemotherapy and radiation treatments. Methods of increasing weight include enteral feeding (nasogastric, nasoduodenal/jejunal, or gastrostomy), parenteral intravenous feeding, and oral supplementation...
July 1, 2017: Journal of Pediatric Oncology Nursing: Official Journal of the Association of Pediatric Oncology Nurses
https://www.readbyqxmd.com/read/28697385/quantitative-contamination-assessment-of-escherichia-coli-in-baby-spinach-primary-production-in-spain-effects-of-weather-conditions-and-agricultural-practices
#13
Ana Allende, Irene Castro-Ibáñez, Roland Lindqvist, María Isabel Gil, Mieke Uyttendaele, Liesbeth Jacxsens
A quantitative microbial contamination model of Escherichia coli during primary production of baby spinach was developed. The model included only systematic contamination routes (e.g. soil and irrigation water) and it was used to evaluate the potential impact of weather conditions, agricultural practices as well as bacterial fitness in soil on the E. coli levels present in the crop at harvest. The model can be used to estimate E. coli contamination of baby spinach via irrigation water, via soil splashing due to irrigation water or rain events, and also including the inactivation of E...
June 27, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28690422/detection-methods-for-stochastic-gravitational-wave-backgrounds-a-unified-treatment
#14
REVIEW
Joseph D Romano, Neil J Cornish
We review detection methods that are currently in use or have been proposed to search for a stochastic background of gravitational radiation. We consider both Bayesian and frequentist searches using ground-based and space-based laser interferometers, spacecraft Doppler tracking, and pulsar timing arrays; and we allow for anisotropy, non-Gaussianity, and non-standard polarization states. Our focus is on relevant data analysis issues, and not on the particular astrophysical or early Universe sources that might give rise to such backgrounds...
2017: Living Reviews in Relativity
https://www.readbyqxmd.com/read/28681349/pharmacotherapy-of-glioblastoma-established-treatments-and-emerging-concepts
#15
REVIEW
Enrico Franceschi, Santino Minichillo, Alba A Brandes
Glioblastoma is the most frequent malignant brain tumor and is characterized by poor prognosis, increased invasiveness, and high recurrence rates. Standard treatment for glioblastoma includes maximal safe surgical resection, radiation, and chemotherapy with temozolomide. Despite treatment advances, only 15-20% of glioblastoma patients survive to 5 years, and no therapies have demonstrated a durable survival benefit in recurrent disease. In the last 10 years, significant advances in knowledge of the biology and molecular pathology of the malignancy have opened the way to new treatment options...
August 2017: CNS Drugs
https://www.readbyqxmd.com/read/28678086/surgical-feeding-tubes-in-pediatric-and-adolescent-cancer-patients-a-single-institution-retrospective-review
#16
Emma C Hamilton, Thomas Curtin, Rebecca S Slack, Christine Ge, Austen D Slade, Andrea Hayes-Jordan, Kevin P Lally, Mary T Austin
The purpose of our study was to evaluate surgical enteric access in pediatric cancer patients to determine factors associated with postoperative complications. We performed a single-institution retrospective review of all patients below 21 years old with a primary cancer diagnosis who underwent surgical procedures for enteral access between 2004 and 2014. Multivariate logistic regression was performed to determine independent predictors of postoperative complications. During the study period, 122 patients had surgically placed feeding tubes, of whom 58% developed ≥1 complication(s) and 16% experienced a major complication...
July 3, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28667978/visdish-a-new-tool-for-canting-and-shape-measuring-solar-dish-facets
#17
Marco Montecchi, Giuseppe Cara, Arcangelo Benedetti
Solar dishes allow us to obtain highly concentrated solar fluxes used to produce electricity or feed thermal processes/storage. For practical reasons, the reflecting surface is composed by a number of facets. After the dish assembly, facet-canting is an important task for improving the concentration of solar radiation around the focus-point, as well as the capture ratio at the receiver placed there. Finally, flux profile should be measured or evaluated to verify the concentration quality. All these tasks can be achieved by the new tool we developed at ENEA, named VISdish...
June 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28660297/-radiation-protection-in-medical-research-licensing-requirement-for-the-use-of-radiation-and-advice-for-the-application-procedure
#18
REVIEW
V Minkov, H Klammer, G Brix
BACKGROUND: In Germany, persons who are to be exposed to radiation for medical research purposes are protected by a licensing requirement. However, there are considerable uncertainties on the part of the applicants as to whether licensing by the competent Federal Office for Radiation Protection is necessary, and regarding the choice of application procedure. AIM: The article provides explanatory notes and practical assistance for applicants and an outlook on the forthcoming new regulations concerning the law on radiation protection of persons in the field of medical research...
June 28, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28657498/synthesis-and-characterization-of-a-rosmarinic-acid-derivative-that-targets-mitochondria-and-protects-against-radiation-induced-damage-in-vitro
#19
Yu-Rui Zhang, Yuan-Yuan Li, Jun-Ying Wang, Hua-Wei Wang, Hua-Nan Wang, Xiao-Meng Kang, Wen-Qing Xu
Mitochondrial dysfunction plays an important role in gamma-radiation-induced mediating oxidative stress. Scavenging radiation-induced reactive oxygen species (ROS) can help mitochondria to maintain their physiological function. Rosmarinic acid is a polyphenol antioxidant that can scavenge radiation-induced ROS, but the structure prevents it from accumulating in mitochondria. In this study, we designed and synthesized a novel rosmarinic acid derivative (Mito-RA) that could use the mitochondrial membrane potential to enter the organelle and scavenge ROS...
June 28, 2017: Radiation Research
https://www.readbyqxmd.com/read/28645711/proteome-dynamics-during-post-desiccation-recovery-reveal-convergence-of-desiccation-and-gamma-radiation-stress-response-pathways-in-deinococcus-radiodurans
#20
Aman Kumar Ujaoney, Mahesh Kumar Padwal, Bhakti Basu
Deinococcus radiodurans is inherently resistant to both ionizing radiation and desiccation. Fifteen months of desiccation was found to be the LD50 dose for D. radiodurans. Desiccated cells of D. radiodurans entered 6h of growth arrest during post-desiccation recovery (PDR). Proteome dynamics during PDR were mapped by resolving cellular proteins by 2-dimensional gel electrophoresis coupled with mass spectrometry. At least 41 proteins, represented by 51 spots on proteome profiles, were differentially expressed throughout PDR...
June 21, 2017: Biochimica et Biophysica Acta
keyword
keyword
57293
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"