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Beta 2 microglobulin

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https://www.readbyqxmd.com/read/29016645/spontaneous-variability-of-pre-dialysis-concentrations-of-uremic-toxins-over-time-in-stable-hemodialysis-patients
#1
Sunny Eloot, Wim Van Biesen, Sanne Roels, Willem Delrue, Eva Schepers, Annemieke Dhondt, Raymond Vanholder, Griet Glorieux
BACKGROUND AND AIM: Numerous outcome studies and interventional trials in hemodialysis (HD) patients are based on uremic toxin concentrations determined at one single or a limited number of time points. The reliability of these studies however entirely depends on how representative these cross-sectional concentrations are. We therefore investigated the variability of predialysis concentrations of uremic toxins over time. METHODS: Prospectively collected predialysis serum samples of the midweek session of week 0, 1, 2, 3, 4, 8, 12, and 16 were analyzed for a panel of uremic toxins in stable chronic HD patients (N = 18) while maintaining dialyzer type and dialysis mode during the study period...
2017: PloS One
https://www.readbyqxmd.com/read/28992939/kidney-function-bone-mineral-metabolism-markers-and-future-risk-of-peripheral-artery-disease
#2
Chao Yang, Lucia Kwak, Shoshana H Ballew, Pranav S Garimella, Bernard G Jaar, Aaron R Folsom, Gerardo Heiss, Elizabeth Selvin, Pamela L Lutsey, Josef Coresh, Kunihiro Matsushita
BACKGROUND AND AIMS: Reduced kidney function is a risk factor for lower-extremity peripheral artery disease (PAD). However, the associations of novel filtration markers with PAD are yet to be quantified. Moreover, little is known on whether bone-mineral metabolism (BMM) markers are related to incident PAD beyond kidney function. METHODS: Using data from 12,472 participants at baseline (1990-1992) of the Atherosclerosis Risk in Communities (ARIC) study, we comprehensively quantified the associations of kidney related markers with incident PAD (defined as hospitalizations with diagnosis of lower-extremity atherosclerosis, revascularization, or amputation)...
September 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28987956/determination-of-stable-reference-genes-for-rt-qpcr-expression-data-in-mechanistic-pain-studies-on-pig-dorsal-root-ganglia-and-spinal-cord
#3
Dale A Sandercock, Jennifer E Coe, Pierpaolo Di Giminiani, Sandra A Edwards
RNA expression levels for genes of interest must be normalised with appropriate reference or "housekeeping" genes that are stably expressed across samples and treatments. This study determined the most stable reference genes from a panel of 6 porcine candidate genes: beta actin (ACTB), beta-2-microglobulin (B2M), eukaryotic elongation factor 1 gamma-like protein (eEF-1), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), succinate dehydrogenase complex subunit A (SDHA), Ubiquitin C (UBC) in sacral dorsal root ganglia and spinal cord samples collected from 16 tail docked pigs (2/3rds of tail amputated) 1, 4, 8 and 16weeks after tail injury (4 pigs/time point)...
September 28, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28980060/phase-i-study-of-a-chloroquine-gemcitabine-combination-in-patients-with-metastatic-or-unresectable-pancreatic-cancer
#4
Panagiotis Samaras, Marina Tusup, Thi Dan Linh Nguyen-Kim, Burkhardt Seifert, Helga Bachmann, Roger von Moos, Alexander Knuth, Steve Pascolo
PURPOSE: Following a previously published pre-clinical validation, this phase I study evaluated the safety, maximum tolerated dose, anti-tumour activity and immune status of a gemcitabine-chloroquine combination as a first- or late-line treatment in patients with metastatic or unresectable pancreatic cancer. METHODS: In this 3 + 3 dose escalation study, patients received a single weekly standard dose of intravenous gemcitabine, followed by single weekly oral intake of 100, 200 or 300 mg of chloroquine...
October 4, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28979155/role-of-serum-cystatin-c-and-beta-2-microglobulin-as-early-markers-of-renal-dysfunction-in-children-with-beta-thalassemia-major
#5
Ola Galal Behairy, Eman Rateb Abd Almonaem, Neveen Tawfik Abed, Omima M Abdel Haiea, Rasha M Zakaria, Rania I AbdEllaty, Effat H Asr, Amira Ibrahim Mansour, Amira Mn Abdelrahman, Hoda A Elhady
BACKGROUND: Although advancements have been made in the management of thalassemic patients, many unrecognized complications have emerged, such as renal abnormalities. AIM: To measure serum levels of cystatin-C and β-2 microglobulin in children with beta-thalassemia major (β-TM) and investigate their significance as early markers of glomerular and tubular dysfunctions. SUBJECTS AND METHODS: The study was performed on 70 children with (β-TM) and 20 apparently healthy children matched for age and sex as a control group...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28962515/corrigendum-to-serum-beta-2-microglobulin-levels-for-predicting-acute-kidney-injury-complicating-aortic-valve-replacement-interact-cardiovasc-thorac-surg-25-2017-533-540-doi-10-1093-icvts-ivx198
#6
Marta Zaleska-Kociecka, Anna Skrobisz, Izabela Wojtkowska, Maciej Grabowski, Maciej Dabrowski, Krzysztof Kusmierski, Katarzyna Piotrowska, Jacek Imiela, Janina Stepinska
No abstract text is available yet for this article.
October 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28962501/serum-beta-2-microglobulin-levels-for-predicting-acute-kidney-injury-complicating-aortic-valve-replacement
#7
Marta Zaleska-Kociecka, Anna Skrobisz, Izabela Wojtkowska, Maciej Grabowski, Maciej Dabrowski, Krzysztof Kusmierski, Katarzyna Piotrowska, Jacek Imiela, Janina Stepinska
OBJECTIVES: Acute kidney injury complicating both transcatheter and surgical aortic valve replacement is associated with high rates of morbidity and mortality. The aim of this study was to investigate the role of serum beta 2 (β2) microglobulin, cystatin C and neutrophil gelatinase-associated lipocalin levels in detecting periprocedural acute kidney injury. METHODS: Eighty consecutive patients who were 70 years of age or older and who were having surgical (n = 40) or transcatheter (n = 40) aortic valve replacement were recruited in a prospective study...
October 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28936029/silicon-nanoporous-membranes-as-a-rigorous-platform-for-validation-of-biomolecular-transport-models
#8
Benjamin J Feinberg, Jeff C Hsiao, Jaehyun Park, Andrew L Zydney, William H Fissell, Shuvo Roy
Microelectromechanical systems (MEMS), a technology that resulted from significant innovation in semiconductor fabrication, have recently been applied to the development of silicon nanopore membranes (SNM). In contrast to membranes fabricated from polymeric materials, SNM exhibit slit-shaped pores, monodisperse pore size, constant surface porosity, zero pore overlap, and sub-micron thickness. This development in membrane fabrication is applied herein for the validation of the XDLVO (extended Derjaguin, Landau, Verwey, and Overbeek) theory of membrane transport within the context of hemofiltration...
August 15, 2017: Journal of Membrane Science
https://www.readbyqxmd.com/read/28910787/middle-molecule-uremic-toxins-and-outcomes-in-chronic-kidney-disease
#9
Ziad A Massy, Sophie Liabeuf
In patients with chronic kidney disease (CKD), uremic toxins constitute a specific nontraditional risk factor. Research in this field started in the early 1990s, and a growing body of preclinical and epidemiological evidence suggests that elevated levels of uremic toxins are associated with poor outcomes in a CKD setting. The present review focuses on a specific class of uremic toxins (the "middle molecules"), which includes well-known candidates like beta-2 microglobulin and fibroblast growth factor 23. Here, we summarize the epidemiological evidence linking the middle-molecule uremic toxin (and especially the larger ones) with hard clinical end points...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28882602/neurosurgical-aspects-of-dialysis-related-spinal-amyloidosis-report-of-three-cases-and-a-review-of-the-literature
#10
M Dalolio, F Lucarella, P Rampini, G P Bulfamante, S Aldea, P Graveleau, S Gaillard, P Scarone
BACKGROUND AND PURPOSE: Osteoarticular manifestations of beta-2 microglobulin amyloidosis are often diagnosed in long-term dialyzed patients. However, spinal involvement is rare (10-25% of patients), and generally not associated with neurological deterioration. Compression of the spinal cord or roots is extremely rare, and probably under-recognized. METHODS: The authors describe three cases of spinal stenosis presenting with neurological signs in long-term dialyzed patients, prospectively collected over 2 years in two different institutions and treated by surgical decompression...
September 4, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28877779/adverse-health-complaints-of-adults-exposed-to-benzene-after-a-flaring-disaster-at-the-bp-refinery-facility-in-texas-city-texas
#11
Mark A D'Andrea, G Kesava Reddy
OBJECTIVE: The objective of this study was to assess the adverse health symptoms experienced by adult subjects who were exposed to benzene after a flaring disaster at the BP refinery in Texas City, Texas. METHODS: A total of 2162 adults aged 18 years or older and exposed to benzene were included. Using the patients' medical charts, we collected and analyzed data on health complaints as well as the patients' serum levels of beta-2-microglobulin and urinary excretion of phenol...
September 7, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28874122/doxycycline-treatment-in-dialysis-related-amyloidosis-discrepancy-between-antalgic-effect-and-inflammation-studied-with-fdg-positron-emission-tomography-a-case-report
#12
Giorgina Barbara Piccoli, Mammar Hachemi, Ida Molfino, Jean Philippe Coindre, Charles Boursot
BACKGROUND: No effective treatment is currently available and dialysis related amyloidosis continues to be invalidating in long-term dialysis patients. A recent case series reported reduction of osteoarticular pain on doxycycline treatment, extending the indications of this drug, used in other uncommon forms of amyloidosis, to dialysis patients. Explanations of the antalgic effect were the anti-inflammatory properties and anti-coiling effects of tetracycline. CASE PRESENTATION: Our report regards a 54-year-old woman, who was never transplanted and has been on hemodialysis and hemodiafiltration for overall 37 years, due to renal hypoplasia...
September 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28835507/genome-editing-for-scalable-production-of-alloantigen-free-lentiviral-vectors-for-in%C3%A2-vivo-gene%C3%A2-therapy
#13
Michela Milani, Andrea Annoni, Sara Bartolaccini, Mauro Biffi, Fabio Russo, Tiziano Di Tomaso, Andrea Raimondi, Johannes Lengler, Michael C Holmes, Friedrich Scheiflinger, Angelo Lombardo, Alessio Cantore, Luigi Naldini
Lentiviral vectors (LV) are powerful and versatile vehicles for gene therapy. However, their complex biological composition challenges large-scale manufacturing and raises concerns for in vivo applications, because particle components and contaminants may trigger immune responses. Here, we show that producer cell-derived polymorphic class-I major histocompatibility complexes (MHC-I) are incorporated into the LV surface and trigger allogeneic T-cell responses. By disrupting the beta-2 microglobulin gene in producer cells, we obtained MHC-free LV with substantially reduced immunogenicity...
August 23, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28834362/is-high-volume-online-hemodiafiltration-associated-with-malnutrition
#14
Nicolás Macías, Almudena Vega, Soraya Abad, Alba Santos, Santiago Cedeño, Tania Linares, Ana María García-Prieto, Inés Aragoncillo, Claudia Yuste, Juan Manuel López-Gómez
Chronic malnutrition is a common problem in patients with end-stage renal disease on hemodialysis. Some studies have reported albumin loss into dialysis fluid during postdilution online hemodiafiltration (OL-HDF). The aim of the study was to assess the nutritional status of patients on high-volume OL-HDF and to demonstrate that higher convective clearances are not associated with malnutrition due to possible loss of nutrients with ultrafiltration. Demographic and clinical data, corporal composition with bioimpedance spectroscopy, dialysis features, albumin loss into dialysis fluid and laboratory parameters were collected in twenty-eight patients with ESRD undergoing postdilution OL-HDF with stable convective volumes over 28 L/session...
August 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28833913/trends-of-urinary-beta-2-microglobulin-levels-and-bronchopulmonary-dysplasia-in-preterm-infants
#15
Yoshio Shima, Sakae Kumasaka, Shigeru Nishimaki
BACKGROUND: The developmental process of bronchopulmonary dysplasia is not identical between very preterm infants born small-for-gestational age and those born appropriate-for-gestational age. In this study, we compared the pattern of the inflammatory response in infants of each group, by measuring urinary beta-2-microglobulin as an alternative, concise, and less- invasive biomarker. METHODS: Urinary beta-2-microglobulin levels and clinical details were examined at birth and 4 weeks of age in 146 very preterm infants...
August 18, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28810828/suitable-reference-gene-for-quantitative-real-time-pcr-analysis-of-gene-expression-in-gonadal-tissues-of-minnow-puntius-sophore-under-high-temperature-stress
#16
Arabinda Mahanty, Gopal Krishna Purohit, Sasmita Mohanty, Nihar Ranjan Nayak, Bimal Prasanna Mohanty
BACKGROUND: High ambient temperature is known to affect fish gonadal development and physiology in a variety of ways depending on the severity and duration of exposure; however, the underlying molecular mechanisms are poorly understood. Gonadal gene expression influence the gonadal development, physiology and the quality of egg/sperm produced in teleosts and the mechanistic understanding of spatio-temporal changes in the gonadal gene expression could be instrumental in controlling the fate of egg/sperm and the quality of seed produced...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28783737/salivary-gland-ultrasonography-as-a-predictor-of-clinical-activity-in-sj%C3%A3-gren-s-syndrome
#17
Tania Fidelix, Adriano Czapkowski, Sergio Azjen, Adagmar Andriolo, Virginia F M Trevisani
PURPOSE: Primary Sjögren's syndrome is a multisystem autoimmune disease characterized by hypofunction of salivary and lacrimal glands and possible multi-organ system manifestations. Over the past 15 years, three sets of diagnostic criteria have been proposed, but none has included salivary gland ultrasonography. However, recent studies support its role in the diagnosis and prognostic evaluation of patients with Sjögren's syndrome. This study aimed to determine the value of salivary gland ultrasonography in the diagnosis and prognosis of Sjögren's syndrome by relating ultrasonography severity scores to clinical and laboratory data...
2017: PloS One
https://www.readbyqxmd.com/read/28730765/prognostic-role-of-inflammatory-biomarkers-in-metastatic-breast-cancer
#18
Ibrahim Petekkaya, Ozan Unlu, Emir C Roach, Gizem Gecmez, Alexis K Okoh, Taner Babacan, Furkan Sarici, Ozge Keskin, Cagatay Arslan, Emine Petekkaya, Ali R Sever, Kadri Altundag
PURPOSE: The effects of inflammation on the prognosis, life expectancy and several parameters such as response to treatment of breast cancer have been previously studied. The purpose of this study was to investigate the effect of inflammatory markers on prognosis in patients with metastatic breast cancer. METHODS: This study was conducted on 81 patients with metastatic breast cancer who have been followed up at the Department of Medical Oncology, Hacettepe University Institute of Oncology, between December, 2009 and March, 2014...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28725572/novel-panel-of-protein-biomarkers-to-predict-response-to-bortezomib-containing-induction-regimens-in-multiple-myeloma-patients
#19
Kay Reen Ting, Michael Henry, Justine Meiller, Annemarie Larkin, Martin Clynes, Paula Meleady, Despina Bazou, Paul Dowling, Peter O'Gorman
BACKGROUND: Multiple myeloma (MM) is a complex heterogeneous disease. Various risk stratification models have been recommended including cytogenetic and FISH analysis to identify high-risk patients who may benefit from novel treatments, but such facilities are not widely available. The International Scoring System (ISS) using beta-2-microglobulin and albumin remains a widely used prognostic scoring system in many clinical practices; however it is not useful in predicting response to treatment in MM...
December 2017: BBA Clinical
https://www.readbyqxmd.com/read/28682565/-digoxin-poisoning-new-prospects-for-therapy
#20
Alfonsina Marino, Lorenzo Giordano, Francesco Ardu
The filter has been approved by the Food and Drug Administration for the removal of beta-2 microglobulin in patient undergoing hemodialysis. We used the filter (the patient agrees) off label, in the course of digitalis intoxication and we have shown that the filter is capable of removing the drug effectively.
April 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
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