keyword
MENU ▼
Read by QxMD icon Read
search

Cell-free hemoglobin

keyword
https://www.readbyqxmd.com/read/28721813/mechanisms-involved-in-the-increased-hemolysis-in-the-fetus-and-newborn
#1
Giuseppe Buonocore, Serafina Perrone, Rodolfo Bracci
BACKGROUND: The suicidal death of erythrocytes should be considered a possible cause of hemolysis and plasma bilirubin overload when there is no evidence of an immune-mediated hemolytic anemia, no consumptive red blood cell disorder, no morphologic or laboratory data to suggest a problem of the red cell membrane, and no evidence of a quantitative or qualitative defect in hemoglobin synthesis. OBJECTIVE: In neonatal period, xenobiotics, cytokines, osmotic shock, energy depletion, oxidative stress, and variation of temperature may induce an alteration of balance between damaging and protecting factors which can be followed by red cell death...
July 18, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28716107/biomarkers-of-resistance-to-radiation-therapy-a-prospective-study-in-cervical-carcinoma
#2
P Moreno-Acosta, A Vallard, S Carrillo, O Gamboa, A Romero-Rojas, M Molano, J Acosta, D Mayorga, C Rancoule, M A Garcia, M Cotes Mestre, N Magné
BACKGROUND: Clinical parameters and proteins have recently been suggested as possible causes of radiotherapy (RT) resistance in cervical carcinoma (CC). The objective of the present study was to validate prognostic biomarkers of radiation resistance. METHODS: The present prospective study included patients undergoing RT with curative intent for histologically proven locally advanced squamous cell CC. Tissues and blood samples were systematically collected before RT initiation...
July 17, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28712866/cell-free-methemoglobin-drives-platelets-to-apoptosis-via-mitochondrial-ros-mediated-activation-of-jnk-and-p38-map-kinase
#3
Somanathapura K NaveenKumar, Mahadevappa Hemshekhar, Mahalingam S Sundaram, Kempaiah Kemparaju, Kesturu S Girish
Cell-free hemoglobin (Hb), a well-known marker of intravascular hemolysis, is eventually oxidized to methemoglobin (MtHb). Elevated levels of MtHb have been noted, alongside depleted levels of platelets, in several hemolytic diseases. The current study aims to probe the possible role of MtHb in platelet death, based on the facts that it is a pro-inflammatory and pro-apoptotic agent, as well as the sensitive nature of platelets and their tendency to undergo apoptosis under oxidative stress. Consequently an attempt is made to establish the link between hemolysis and thrombocytopenia, by deciphering the underlying molecular signaling pathways...
July 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28711490/long-term-response-to-sunitinib-treatment-in-metastatic-renal-cell-carcinoma-a-pooled-analysis-of-clinical-trials
#4
Nizar M Tannir, Robert A Figlin, Martin E Gore, M Dror Michaelson, Robert J Motzer, Camillo Porta, Brian I Rini, Caroline Hoang, Xun Lin, Bernard Escudier
BACKGROUND: We characterized clinical outcomes of patients with metastatic renal cell carcinoma (mRCC) treated with sunitinib who were long-term responders (LTRs), defined as patients having progression-free survival (PFS) > 18 months. PATIENTS AND METHODS: A retrospective analysis of data from 5714 patients with mRCC treated with sunitinib in 8 phase II/III clinical trials and the expanded access program. Duration on-study and objective response rate (ORR) were compared between LTRs and patients with PFS ≤ 18 months ("others")...
June 20, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28700990/oncologic-response-and-hospitalization-rate-of-patients-receiving-cabazitaxel-in-the-fourth-line-and-beyond-in-castration-resistant-prostate-cancer-analysis-of-a-retrospective-cohort-and-a-structured-literature-review
#5
Jost von Hardenberg, Maike Schwartz, Thorsten Werner, Stefan Fuxius, Arne Strauss, Thomas Stefan Worst, Philipp Nuhn, Christian Bolenz, Elmar Heinrich
BACKGROUND: Limited data are available for the use of agents in metastatic castration-resistant prostate cancer (mCRPC) beyond the third-line. We provide data during treatment with cabazitaxel (CAB), helping to improve the informed-consent process. PATIENTS AND METHODS: We retrospectively reviewed patients treated with fourth-line or beyond CAB for mCRPC after failure of previous therapies with docetaxel, abiraterone acetate, enzalutamide and/or radium-223. The progression-free survival (PFS) and the overall survival (OS) were estimated using the Kaplan-Meier method and compared to published data based on a structured literature review...
July 13, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28694810/oxidized-hemoglobin-is-antigenic-and-immunogenic-in-lupus
#6
Sonia Jain, Anjali Bose, Banajit Bastia, Hritika Sharma, Ruchi Sachdeva, Arun K Jain, Rahul Pal
Hemolysis-associated anemia is characteristic of diseases such as atherosclerosis, lupus, malaria, and leishmaniasis; the toxic effects of free hemoglobin (Hb) have been extensively described. This study was based on the premise that release of this sequestered, inflammatory molecule can result in deleterious immunological consequences, particularly in the context of pre-existing lupus. IgG anti-Hb responses were detected in the sera of lupus patients. Lupus-prone mice exhibited heightened plasma Hb levels, and ferric (Fe(3+)) Hb triggered preferential release of lupus-associated cytokines from splenocytes derived from aging lupus-prone mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28675957/protective-mechanism-of-turmeric-curcuma-longa-on-carbofuran-induced-hematological-and-hepatic-toxicities-in-a-rat-model
#7
Md Sakib Hossen, E M Tanvir, Maruf Billah Prince, Sudip Paul, Moumoni Saha, Md Yousuf Ali, Siew Hua Gan, Md Ibrahim Khalil, Nurul Karim
CONTEXT: Turmeric (Curcuma longa L. [Zingiberaceae]) is used in the treatment of a variety of conditions including pesticide-induced toxicity. OBJECTIVE: The study reports the antioxidant properties and the protective effects of turmeric against carbofuran (CF)-induced toxicity in rats. MATERIALS AND METHODS: The antioxidant potential was determined by using free radicals scavenging activity and ferric reducing antioxidant power values. Male Wistar rats were randomly divided into four groups, designated as control, turmeric (100 mg/kg/day), CF (1 mg/kg/day) and turmeric (100 mg/kg/day) + CF (1 mg/kg/day) treatments...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28661910/determination-of-reynolds-shear-stress-level-for-hemolysis
#8
Choon-Sik Jhun, Megan A Stauffer, John D Reibson, Eric E Yeager, Raymond K Newswanger, Joshua O Taylor, Keefe B Manning, William J Weiss, Gerson Rosenberg
Reynolds shear stress (RSS) has served as a metric for the effect of turbulence on hemolysis. Forstrom (1969) and Sallam and Hwang (1984) determined the RSS threshold for hemolysis to be 50,000 and 4,000 dyne/cm, respectively, using a turbulent jet. Despite the order of magnitude discrepancy, the threshold by Sallam and Hwang has been frequently cited for hemolytic potential in blood pumps. We recreated Sallam apparatus (SA) to resolve this discrepancy and provide additional data to be used in developing a more accurate hemolysis model...
June 15, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28660949/selenoproteins-are-involved-in-antioxidant-defense-systems-in-thalassemia
#9
REVIEW
G E Genc, Z Ozturk, S Gumuslu
Thalassemia major (TM) is a hereditary blood disease that affects the production of hemoglobin, resulting in severe anemia. Iron overload because of repeated blood transfusion and increased intestinal iron absorption and hemolysis are the major causes of increased oxidative stress in these patients. Growth and maturational delay, cardiomyopathy, endocrinopathies, and osteoporosis are the complications of thalassemia, secondary to anemia and iron overload. The human body has endogenous defense mechanisms to help protect against free radical-induced cell damage...
June 29, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28656646/parenteral-irons-versus-transfused-red-blood-cells-for-treatment-of-anemia-during-canine-experimental-bacterial-pneumonia
#10
Dante A Suffredini, Wanying Xu, Junfeng Sun, Jesús Barea-Mendoza, Steven B Solomon, Samuel L Brashears, Andreas Perlegas, Daniel B Kim-Shapiro, Harvey G Klein, Charles Natanson, Irene Cortés-Puch
BACKGROUND: No studies have been performed comparing intravenous (IV) iron with transfused red blood cells (RBCs) for treating anemia during infection. In a previous report, transfused older RBCs increased free iron release and mortality in infected animals when compared to fresher cells. We hypothesized that treating anemia during infection with transfused fresh RBCs, with minimal free iron release, would prove superior to IV iron therapy. STUDY DESIGN AND METHODS: Purpose-bred beagles (n = 42) with experimental Staphylococcus aureus pneumonia rendered anemic were randomized to be transfused RBCs stored for 7 days or one of two IV iron preparations (7 mg/kg), iron sucrose, a widely used preparation, or ferumoxytol, a newer formulation that blunts circulating iron levels...
June 27, 2017: Transfusion
https://www.readbyqxmd.com/read/28641617/-biological-characteristics-and-therapeutic-efficacy-of-103-patients-with-acute-erythroleukemia
#11
Yue Yin, Wen-Qi Zhan, Hui-Fang Huang, Chen-Qing Zhang, Dang-Hui Fu, Shu-Juan Xu, Jian-Da Hu, Xin-Ji Chen
OBJECTIVE: To investigate the biological characteristics and therapeutic efficacyt of acute erythroleukemia (AEL,AML-M6). METHODS: Blood cell count, liver function, lactate dehydrogenase level, coagulation, morphology, immunology, cell genetics and molecular biology were retrospectively analyzed in 103 cases of acute erythroleukemia patients admitted in our department from May 2016 to June 2009. The therapeutic efficacy was observed by means of remission rate, relapse rate, relapse-free survival and overall survival...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28640312/speciation-in-human-blood-of-metvan-a-vanadium-based-potential-anti-tumor-drug
#12
Daniele Sanna, Valeria Ugone, Giovanni Micera, Péter Buglyó, Linda Bíró, Eugenio Garribba
The first report on the anti-cancer activity of the compound Metvan, [V(IV)O(Me2phen)2(SO4)], where Me2phen is 4,7-dimethyl-1,10-phenanthroline, dates back to 2001. Although it was immediately identified as one of the most promising multitargeted anti-cancer V compounds, no development on the medical experimentation was carried out. One of the possible reasons is the lack of information on its speciation in aqueous solution and its thermodynamic stability, factors which influence the transport in the blood and the final form which reaches the target organs...
July 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28606449/transfusion-related-immunomodulation-and-cancer
#13
REVIEW
Hadi Goubran, David Sheridan, Julia Radosevic, Thierry Burnouf, Jerard Seghatchian
Blood and blood-component therapy triggers immunological reactions in recipients. Transfusion-related immunomodulation [TRIM] is an important complex biological immune reaction to transfusion culminating in immunosuppression. The mechanisms underlying TRIM include the presence of residual leukocytes and apoptotic cells, the transfusion of immunosuppressive cytokines either present in donor components or generated during blood processing, the transfer of metabolically active growth factor-loaded microparticles and extracellular vesicles and the presence of free hemoglobin or extracellular vesicle-bound hemoglobin...
May 27, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28601919/cerebellar-exposure-to-cell-free-hemoglobin-following-preterm-intraventricular-hemorrhage-causal-in-cerebellar-damage
#14
Alex Adusei Agyemang, Kristbjörg Sveinsdóttir, Suvi Vallius, Snjolaug Sveinsdóttir, Matteo Bruschettini, Olga Romantsik, Ann Hellström, Lois E H Smith, Lennart Ohlsson, Bo Holmqvist, Magnus Gram, David Ley
Decreased cerebellar volume is associated with intraventricular hemorrhage (IVH) in very preterm infants and may be a principal component in neurodevelopmental impairment. Cerebellar deposition of blood products from the subarachnoid space has been suggested as a causal mechanism in cerebellar underdevelopment following IVH. Using the preterm rabbit pup IVH model, we evaluated the effects of IVH induced at E29 (3 days prior to term) on cerebellar development at term-equivalent postnatal day 0 (P0), term-equivalent postnatal day 2 (P2), and term-equivalent postnatal day 5 (P5)...
June 10, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28601493/expression-of-peripheral-blood-mirna-720-and-mirna-1246-can-be-used-as-a-predictor-for-outcome-in-multiple-myeloma-patients
#15
Yuyue Ren, Xiaoyun Li, Wei Wang, Wanting He, Jinghua Wang, Ying Wang
OBJECTIVE: Multiple myeloma (MM) is a heterogeneous disorder, encompassing several related entities that share the common characteristic of being composed of monoclonal plasma cells (PCs). MicroRNAs (miRNAs) are small noncoding RNAs that control the expression of many target messenger RNAs involved in normal cell functions. Two serum microRNAs, miRNA-720 and miRNA-1246, were found to have potential as diagnostic biomarkers in myeloma. Therefore, we investigated a possible correlation of peripheral blood (PB) miRNA expression with diagnosis and prognosis...
May 10, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28601310/hemoglobin-based-oxygen-carriers-promote-systemic-hyperfibrinolysis-that-is-both-dependent-and-independent-of-plasmin
#16
Alexander P Morton, Ernest E Moore, Hunter B Moore, Eduardo Gonzalez, Michael P Chapman, Erik Peltz, Anirban Banerjee, Christopher Silliman
BACKGROUND: Hyperfibrinolysis plays an integral role in the genesis of trauma-induced coagulopathy. Recent data demonstrate that red blood cell lysis promotes fibrinolysis; however, the mechanism is unclear. Hemoglobin-based oxygen carriers (HBOCs) have been developed for resuscitation and have been associated with coagulopathy. We hypothesize that replacement of whole blood (WB) using an HBOC results in a coagulopathy because of the presence of free hemoglobin. MATERIALS AND METHODS: WB was sampled from healthy donors (n = 6)...
June 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28570672/mirasol-pathogen-reduction-technology-treatment-of-human-whole-blood-does-not-induce-acute-lung-injury-in-mice
#17
Beñat Mallavia, Nicholas Kwaan, Susanne Marschner, Susan Yonemura, Mark R Looney
In resource-limited settings and in the military theater, fresh human whole blood is commonly transfused, but infectious risks are a concern. Sophisticated molecular testing for potential infectious agents in the whole blood is often unavailable. To address this unmet need, pathogen reduction technology (PRT) has been developed, and it is an effective approach to inactivate a broad range of pathogens found in human blood. However, studies are needed to determine if it is harmful to blood cells and whether these cells could damage the transfused recipient, including the development of acute lung injury/acute respiratory distress syndrome...
2017: PloS One
https://www.readbyqxmd.com/read/28567420/prognostic-significance-of-blood-transfusion-in-newly-diagnosed-multiple-myeloma-patients-without-autologous-hematopoietic-stem-cell-transplantation
#18
Liping Fan, Danhui Fu, Jinping Zhang, Haobo Huang, Qingqing Wang, Yamei Ye, Qianling Xie
The aim of this study was to evaluate whether blood transfusions affect overall survival (OS) and progression-free survival (PFS) in newly diagnosed multiple myeloma (MM) patients without hematopoietic stem cell transplantation. A total of 181 patients were enrolled and divided into two groups: 68 patients in the transfused group and 113 patients in the nontransfused group. Statistical analyses showed that there were significant differences in ECOG scoring, Ig isotype, platelet (Plt) counts, hemoglobin (Hb) level, serum creatinine (Scr) level, and β2-microglobulin (β2-MG) level between the two groups...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28562690/initial-computed-tomography-imaging-details-during-first-line-systemic-therapy-is-of-significant-prognostic-value-in-patients-with-na%C3%A3-ve-unresectable-metastatic-renal-cell-carcinoma
#19
Sung Han Kim, Weon Seo Park, Sun Ho Kim, Ho Kyung Seo, Jae Young Joung, Kang Hyun Lee, Jinsoo Chung
PURPOSE: We aimed to determine the prognostic significance of computed tomography imaging parameters of unresectable primary renal tumor lesions, obtained at baseline and at first follow-up, on overall survival in naïve, unresectable metastatic renal cell carcinoma patients during first-line systemic therapy. MATERIALS AND METHODS: Clinicopathological parameters of 56 patients treated between 2007 and 2015, including imaging parameters (such as the longest tumor diameter, necrotic area diameter, and attenuation in primary renal tumor lesions on baseline vs...
2017: PloS One
https://www.readbyqxmd.com/read/28561532/pretreatment-albumin-level-predicts-survival-in-head-and-neck-squamous-cell-carcinoma
#20
Won Sub Lim, Jong-Lyel Roh, Sung-Bae Kim, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim
OBJECTIVES/HYPOTHESIS: Poor nutritional status in patients with head and neck squamous cell carcinoma (HNSCC) is associated with tumor progression and survival. This study examined the prognostic value of nutritional and hematological markers in patients with HNSCC who received definitive treatments. STUDY DESIGN: A prospective observational cohort study. METHODS: This study included 338 consecutive patients who underwent surgery and/or radiotherapy/chemoradiotherapy for treatment-naïve HNSCC...
May 31, 2017: Laryngoscope
keyword
keyword
107292
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"