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https://www.readbyqxmd.com/read/29335820/how-much-do-we-know-about-hemolytic-capability-of-pathogenic-candida-species
#1
REVIEW
Márcia C Furlaneto, Helena P Góes, Hugo F Perini, Renan C Dos Santos, Luciana Furlaneto-Maia
Hemolytic factor production by pathogenic Candida species is considered an important attribute in promoting survival within the mammal host through the ability to assimilate iron from the hemoglobin-heme group. Hemolytic capability has been evaluated for Candida species based on hemolysis zones on plate assay, analysis of hemolytic activity in liquid culture medium, and hemolysis from cell-free culture broth. The production of hemolytic factor is variable among Candida species, where C. parapsilosis is the less hemolytic species...
January 15, 2018: Folia Microbiologica
https://www.readbyqxmd.com/read/29328439/prognostic-significance-of-hypoxia-inducible-factor-1%C3%AE-expression-in-patients-with-clear-cell-renal-cell-carcinoma
#2
Shuiqing Wu, Fen Jiang, Hongtao Wu, Yinhuai Wang, Ran Xu, Jian Cao, Qiong Lu, Xuan Zhu, Zhaohui Zhong, Xiaokun Zhao
The prognostic significance of hypoxia inducible factor-1α (HIF-1α) expression in tumors and the levels of preoperative hemoglobin in clear cell renal cell carcinoma (ccRCC), with or without concomitant chronic obstructive pulmonary disease (COPD), was investigated. A total of 128 patients with ccRCC who underwent surgery were analyzed using retrospective methods. Overall survival (OS) and progression free survival (PFS) were analyzed with clinicopathological variables, including preoperative hemoglobin levels, COPD and the levels of HIF‑1α expression, by Kaplan‑Meier survival analysis...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29296784/high-proportions-of-pd-1-and-pd-l1-leukocytes-in-classical-hodgkin-lymphoma-microenvironment-are-associated-with-inferior-outcome
#3
Peter Hollander, Peter Kamper, Karin Ekstrom Smedby, Gunilla Enblad, Maja Ludvigsen, Julie Mortensen, Rose-Marie Amini, Stephen Hamilton-Dutoit, Francesco d'Amore, Daniel Molin, Ingrid Glimelius
Immune checkpoint inhibition targeting the programmed death receptor (PD)-1 pathway is a novel treatment approach in relapsed and refractory classical Hodgkin lymphoma (cHL). Identifying patients with a high risk of treatment failure could support the use of PD-1 inhibitors as front-line treatment. Our aim was to investigate the prognostic impact of PD-1, programmed death-ligand 1 (PD-L1), and PD-L2 in the tumor microenvironment in diagnostic biopsies of patients with cHL. Patients from Denmark and Sweden, diagnosed between 1990 and 2007 and ages 15 to 86 years, were included...
August 8, 2017: Blood Advances
https://www.readbyqxmd.com/read/29285804/centrifugation-free-washing-a-novel-approach-for-removing-iga-from-stored-red-blood-cells
#4
Eszter Vörös, Nathaniel Z Piety, Briony C Strachan, Madeleine Lu, Sergey S Shevkoplyas
Washed red blood cells (RBCs) are indicated for immunoglobulin A (IgA) deficient recipients. Centrifugation-based cell processors commonly used by hospital blood banks cannot consistently reduce IgA below the recommended levels, hence double washing is frequently required. Here we describe a prototype of a simple, portable, disposable system capable of washing stored RBCs without centrifugation, while reducing IgA below 0.05 mg/dL in a single run. Samples from RBC units (n = 8, leukoreduced, 4-6 weeks storage duration) were diluted with normal saline to a hematocrit of 10%, and then washed using either the prototype washing system, or via conventional centrifugation...
December 29, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29234999/prognostic-significance-of-serum-inflammatory-markers-in-gastric-cancer
#5
Arfon G M T Powell, Debora Parkinson, Neil Patel, David Chan, Adam Christian, Wyn G Lewis
BACKGROUND: The aim of this study was to assess the relative prognostic value of biomarkers to measure the systemic inflammatory response (SIR) and improve prognostic modeling in a cohort of patients undergoing potentially curative surgery for gastric adenocarcinoma. The hypothesis was that a single SIR biomarker would be associated with the most prognostic value. METHODS: Consecutive 331 patients undergoing surgery for gastric cancer between 2004 and 2016 within a regional UK cancer network were identified...
October 4, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29233055/universal-screening-program-in-pregnant-women-and-newborns-at-risk-for-sickle-cell-disease-first-report-from-northern-italy
#6
Mariachiara Lodi, Elena Bigi, Giovanni Palazzi, Lara Vecchi, Riccardo Morandi, Monica Setti, Silvana Borsari, Giuliano Bergonzini, Lorenzo Iughetti, Donatella Venturelli
The implementation of screening programs for early detection of patients with sickle cell disease has become necessary in Italy as a result of the high rate of migration from areas with a high prevalence of the disease (Sub-Saharan Africa, Middle East and the Balkans). Following a pilot study performed in the province of Modena, Italy in 2011-2013, an official screening program was established on May 31 2014 for all pregnant women, free-of-charge for the family according to the National Guidelines for Physiological Pregnancy...
December 12, 2017: Hemoglobin
https://www.readbyqxmd.com/read/29220877/increased-circulating-plasma-cells-detected-by-flow-cytometry-predicts-poor-prognosis-in-patients-with-plasma-cell-myeloma
#7
Mi Hyun Bae, Chan-Jeoung Park, Bo Hyun Kim, Young-Uk Cho, Seongsoo Jang, Dong-Hyun Lee, Eul-Ju Seo, Dok Hyun Yoon, Jung-Hee Lee, Cheolwon Suh
BACKGROUND: Flow cytometry (FC) is a reliable tool for diagnosing and monitoring of plasma cell myeloma (PCM). Recent studies used FC for quantifying plasma cells (PCs) in peripheral blood (PB) using various panels, and an adverse prognostic effect of circulating PCs (cPCs) has been reported. We investigated the prognostic implication of cPCs quantified using a simple panel in patients with PCM. METHODS: Bone marrow (BM) and PB of 85 patients with PCM were analyzed by five-color FC at time of diagnosis...
December 8, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29206655/pathophysiology-clinical-presentation-and-treatment-of-coma-and-acute-kidney-injury-complicating-falciparum-malaria
#8
Katherine Plewes, Gareth D H Turner, Arjen M Dondorp
PURPOSE OF REVIEW: Cerebral impairment and acute kidney injury (AKI) are independent predictors of mortality in both adults and children with severe falciparum malaria. In this review, we present recent advances in understanding the pathophysiology, clinical features, and management of these complications of severe malaria, and discuss future areas of research. RECENT FINDINGS: Cerebral malaria and AKI are serious and well recognized complications of severe malaria...
February 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29193101/case-series-supporting-heme-detoxification-via-therapeutic-plasma-exchange-in-acute-multiorgan-failure-syndrome-resistant-to-red-blood-cell-exchange-in-sickle-cell-disease
#9
James E Louie, Caitlin J Anderson, Katayoun Fayaz M Fomani, Alonye Henry, Trevor Killeen, Narla Mohandas, Karina Yazdanbakhsh, John D Belcher, Gregory M Vercellotti, Patricia A Shi
BACKGROUND: Depletion of haptoglobin (Hp) and hemopexin (Hx) with increase in free hemoglobin and heme are important etiologies of vaso-occlusive complications in sickle cell disease (SCD). This study is the first to show an association between clinical improvement in SCD and repletion of Hp and Hx by therapeutic plasma exchange (TPE) using plasma replacement. STUDY DESIGN AND METHODS: Thirteen fresh-frozen plasma (FFP) units derived from consecutive whole blood donations were thawed at 37°C after 10 months of storage; Hp and Hx concentrations immediately postthaw and after 5 days of refrigerated storage were analyzed by enzyme-linked immunosorbent assay (ELISA)...
November 27, 2017: Transfusion
https://www.readbyqxmd.com/read/29190288/hematologic-and-biochemical-differences-between-two-free-ranging-yangtze-finless-porpoise-populations-the-implications-of-habitat
#10
Ghulam Nabi, Yujiang Hao, Xianyuan Zeng, Zheng Jinsong, Richard W McLaughlin, Ding Wang
The goals of this study were to compare the serum chemistry and hematology values of wild and semi-natural free-ranging Yangtze Finless Porpoises (Neophocaena asiaeorientalis ssp. asiaeorientalis) populations and to ascertain how these values change with the different environmental condition. For this study, samples were collected from 81 YFPs, 35 living in the wild and 46 living in a semi-natural reserve. Each population was divided into 8 life history categories; Male Calf, Female Calf, Juvenile Male, Juvenile Female, Adult Male, Pregnant, Lactating and Pregnant plus Lactating...
2017: PloS One
https://www.readbyqxmd.com/read/29166738/-expression-characteristics-and-prognosis-significance-of-mirna-181a-in-acute-myeloid-leukemia-with-normal-karyotype
#11
X X Zhuang, Q L Ma, H P Wang, M X Yu, X Li, H T Meng, W J Yu, C J Jin, L S You, J Jin
Objective: To study the expression of miRNA-181a in acute myeloid leukemia (AML) patients with normal karyotype to probe its prognosis significance. Methods: The expression level of miRNA-181a in bone marrow mononuclear cells of 120 de novo AML patients with normal karyotype was detected by real time fluorescence quantitative PCR. The direct sequencing method was used to detect IDH1, IDH2, NPM1, FLT3-ITD, DNMT3A and CEBPα mutations in CN-AML patients after PCR. The relationship between miRNA-181a expression and gene mutation, the clinical parameters and prognosis were analyzed...
October 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29156642/is-the-benefit-risk-ratio-for-patients-with-transfusion-dependent-thalassemia-treated-by-unrelated-cord-blood-transplantation-favorable
#12
REVIEW
Tang-Her Jaing
Transfusion-dependent thalassemia (TDT) is an inherited disorder characterized by absent or defective production of α- or β-hemoglobin chains. If untreated, the disease invariably culminates in death in early infancy due to cardiac failure or overwhelming infection. Although there is clear evidence of good health-related quality of life and return to normal life style, the choice to undergo hematopoietic stem cell transplantation (HSCT) remains a challenge because of the potential risk of transplant-related mortality (TRM) in TDT...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29151289/-prognostic-value-of-18-f-fluorodeoxyglucose-fdg-positron-emission-tomography-computed-tomography-pet-ct-in-extensive-stage-small-cell-lung-cancer
#13
C Y Ding, Z Guo, Y Y Li, T R Li
Objective: To investigated the prognostic value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) in extensive-stage small cell lung cancer (ES -SCLC). Methods: Fifty-five patients with ES-SCLC who underwent pretreatment (18)F-FDG PET-CT were retrospectively recruited in this study. The correlations of maximum standardized uptake value (SUVmax) of primary lesion, metabolic tumor volume (MTV) of primary lesion (MTVp), total lesion glycolysis (TLG) of primary lesion (TLGp), the highest SUVmax of all lesions, the sum of metabolic volume (MTV sum), the sum of total lesions glycolysis (TLGsum) and clinical factors were analyzed...
November 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/29133160/the-changes-of-red-blood-cell-viscoelasticity-and-sports-anemia-in-male-24-hr-ultra-marathoners
#14
Che-Hung Liu, Yen-Fang Tseng, Jiun-I Lai, Yin-Quan Chen, Shih-Hao Wang, Wei-Fong Kao, Li-Hua Li, Yu-Hui Chiu, Chorng-Kuang How, Wen-Han Chang
BACKGROUND: In endurance sports, stress, dehydration and release of chemical factors have been associated with red blood cell (RBC) alterations of structure and function, which may contribute to sports anemia, a well-observed phenomenon during long-distance running. Until now, the investigation of the changes of viscoelastic properties of RBC membrane, a decisive factor of RBC deformability to avoid hemolysis, is lacking, especially in an Oriental population. METHODS: nineteen runners were prospectively recruited into our study...
November 10, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29133139/methemoglobin-reductase-activity-in-intact-fish-red-blood-cells
#15
Frank B Jensen, Karsten Nielsen
Red blood cells (RBCs) possess methemoglobin reductase activity that counters the ongoing oxidation of hemoglobin (Hb) to methemoglobin (metHb), which in circulating blood is caused by Hb autoxidation or reactions with nitrite. We describe an assay for determining metHb reductase activity in intact RBCs in physiological saline at normal Pco2 and pH. After initial loading of oxygenated RBCs with nitrite (partly oxidizing Hb to metHb), the nitrite is removed by three washes of the RBCs in nitrite-free physiological saline to enable the detection of RBC metHb reductase activity in the absence of counteracting oxidation...
November 10, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29129689/ascorbic-acid-attenuates-endothelial-permeability-triggered-by-cell-free-hemoglobin
#16
Jamie L Kuck, Julie A Bastarache, Ciara M Shaver, Joshua P Fessel, Sergey I Dikalov, James M May, Lorraine B Ware
BACKGROUND: Increased endothelial permeability is central to shock and organ dysfunction in sepsis but therapeutics targeted to known mediators of increased endothelial permeability have been unsuccessful in patient studies. We previously reported that cell-free hemoglobin (CFH) is elevated in the majority of patients with sepsis and is associated with organ dysfunction, poor clinical outcomes and elevated markers of oxidant injury. Others have shown that Vitamin C (ascorbate) may have endothelial protective effects in sepsis...
November 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29127679/alternative-donor-unrelated-donor-transplants-for-the-%C3%AE-thalassemia-and-sickle-cell-disease
#17
Courtney D Fitzhugh, Allistair Abraham, Matthew M Hsieh
Considerable progress with respect to donor source has been achieved in allogeneic stem cell transplant for patients with hemoglobin disorders, with matched sibling donors in the 1980s, matched unrelated donors and cord blood sources in the 1990s, and haploidentical donors in the 2000s. Many studies have solidified hematopoietic progenitors from matched sibling marrow, cord blood, or mobilized peripheral blood as the best source-with the lowest graft rejection and graft versus host disease (GvHD), and highest disease-free survival rates...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29123109/label-free-automated-three-dimensional-imaging-of-whole-organs-by-microtomy-assisted-photoacoustic-microscopy
#18
Terence T W Wong, Ruiying Zhang, Chi Zhang, Hsun-Chia Hsu, Konstantin I Maslov, Lidai Wang, Junhui Shi, Ruimin Chen, K Kirk Shung, Qifa Zhou, Lihong V Wang
Three-dimensional (3D) optical imaging of whole biological organs with microscopic resolution has remained a challenge. Most versions of such imaging techniques require special preparation of the tissue specimen. Here we demonstrate microtomy-assisted photoacoustic microscopy (mPAM) of mouse brains and other organs, which automatically acquires serial distortion-free and registration-free images with endogenous absorption contrasts. Without tissue staining or clearing, mPAM generates micrometer-resolution 3D images of paraffin- or agarose-embedded whole organs with high fidelity, achieved by label-free simultaneous sensing of DNA/RNA, hemoglobins, and lipids...
November 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/29120945/a-comparison-of-red-cell-rejuvenation-versus-mechanical-washing-for-the-prevention-of-transfusion-associated-organ-injury-in-swine
#19
Marcin J Woźniak, Saqib Qureshi, Nikol Sullo, William Dott, Rebecca Cardigan, Michael Wiltshire, Mintu Nath, Nishith N Patel, Tracy Kumar, Alison H Goodall, Gavin J Murphy
BACKGROUND: We evaluated the effects of two interventions that modify the red cell storage lesion on kidney and lung injury in experimental models of transfusion. METHODS: White-landrace pigs (n = 32) were allocated to receive sham transfusion (crystalloid), 14-day stored allogeneic red cells, 14-day red cells washed using the red cells washing/salvage system (CATS; Fresenius, Germany), or 14-day red cells rejuvenated using the inosine solution (Rejuvesol solution; Zimmer Biomet, USA) and washed using the CATS device...
November 9, 2017: Anesthesiology
https://www.readbyqxmd.com/read/29104346/tessellated-permanent-magnet-circuits-for-flow-through-open-gradient-separations-of-weakly-magnetic-materials
#20
Lee R Moore, P Stephen Williams, Jeffrey J Chalmers, Maciej Zborowski
Emerging microfluidic-based cell assays favor label-free red blood cell (RBC) depletion. Magnetic separation of RBC is possible because of the paramagnetism of deoxygenated hemoglobin but the process is slow for open-gradient field configurations. In order to increase the throughput, periodic arrangements of the unit magnets were considered, consisting of commercially available Nd-Fe-B permanent magnets and soft steel flux return pieces. The magnet design is uniquely suitable for multiplexing by magnet tessellation, here meaning the tiling of the magnet assembly cross-sectional plane by periodic repetition of the magnet and the flow channel shapes...
April 1, 2017: Journal of Magnetism and Magnetic Materials
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