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https://www.readbyqxmd.com/read/28439985/the-utility-of-mass-fix-to-detect-and-monitor-monoclonal-proteins-in-the-clinic
#1
Paolo Milani, David L Murray, David R Barnidge, Mindy C Kohlhagen, John R Mills, Giampaolo Merlini, Surendra Dasari, Angela Dispenzieri
The detection and quantification of monoclonal-proteins (M-proteins) are necessary for the diagnosis and evaluation of response in plasma cell dyscrasias. Immunoglobulin enrichment-coupled with matrix-assisted laser desorption ionization time-of-flight mass-spectrometry (MASS-FIX) is a simple and inexpensive method to identify M-proteins, but its clinical generalizability has not yet been elucidated. We compared MASS-FIX to protein electrophoresis (PEL), serum/urine immunofixation-electrophoresis (IFE) and quantitative serum free-light chain (FLC) for the identification of M-proteins in different clinical diagnoses...
April 25, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28428132/novel-properties-of-hippophae-rhamnoides-l-twig-and-leaf-extracts-anti-virulence-action-and-synergy-with-antifungals-studied-in%C3%A2-vitro-on-candida-spp-model
#2
Beata Sadowska, Aleksandra Budzyńska, Anna Stochmal, Jerzy Żuchowski, Barbara Różalska
Original, chemically characterized Sea buckthorn (SBT) twig and leaf extracts were in vitro studied in terms of anti-Candida activity. Minimum inhibitory concentrations (MICs) of the extracts against C. albicans ATCC 10231 ranged: 250 μg/ml (twig), 31.5 μg/ml (leaf), and against C. glabrata G1 (clinical isolate) - 15.6 μg/ml (twig), 3.9 μg/ml (leaf). Next the extracts have been used at their subMIC. Both extracts significantly enhanced activity of fluconazole (FLC) and caspofungin (CAS) against C...
April 18, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28419907/flc-expression-is-down-regulated-by-cold-treatment-in-diplotaxis-tenuifolia-wild-rocket-but-flowering-time-is-unaffected
#3
Jemma L Taylor, Andrea Massiah, Sue Kennedy, Yiguo Hong, Stephen D Jackson
Wild rocket (Diplotaxis tenuifolia) has become a very popular salad leaf due to its peppery taste. It is part of the Brassicaceae family and thus has a high level of homology at the DNA level to other Brassica species including Arabidopsis thaliana. The vernalization and photoperiodic requirements of wild rocket have not been reported to date. Photoperiodic experiments described here demonstrate that rocket is a facultative long day plant. To investigate the vernalization requirement, both seed and young plants were given vernalization treatments at 4°C for different lengths of time...
March 28, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28417905/analytical-criticalities-associated-to-different-immunological-methods-for-serum-free-light-chain-detection-in-plasma-cell-dyscrasias-a-description-of-particular-clinical-cases
#4
Rocco Sabatino, Antonio Perrone, Marco Cuomo, Sandra Liotti, Vittoria Barchiesi, Monica Cantile, Ernesta Cavalcanti
Current criteria for differential diagnosis of multiple myeloma (MM), Monoclonal gammopathy of undetermined significance (MGUS), and smoldering multiple myeloma (SMM) are included in the 2003 guidelines by the International Myeloma Working Group (IMWG). An updated version was then published in 2014, highlighting the importance of serum free light chain (sFLC) detection, as well as the κ/λ ratio as excellent indicators of clonality. At present, two commercial assays for sFLC quantification are available: the Freelite™ assay and the N-Latex assay...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28398583/clsi-based-validation-of-manufacturer-derived-reference-intervals-on-the-cobas-8000-platform
#5
Veronika Leitner-Ferenc, Johanna Atamaniuk, Sonja Jansen-Skoupy, Brigitta Stöckelmeier, Katharina Grohs, Manuela Födinger
Background: Reference intervals provided by diagnostic test manufacturers should be transferred to clinical laboratories after validation. Although protocols exist, laboratories rarely perform and report on results of validation studies. Methods: We validated reference intervals (RIs) of 87 analytes on a Cobas 8000 platform according to standards published by the Clinical and Laboratory Standards Institute (CLSI). Results: For 8 analytes, decision limits were provided in the package inserts...
April 8, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28395217/novel-alkylated-azoles-as-potent-antifungals
#6
Sanjib K Shrestha, Atefeh Garzan, Sylvie Garneau-Tsodikova
Fluconazole (FLC) is the drug of choice when it comes to treat fungal infections such as invasive candidiasis in humans. However, the widespread use of FLC has resulted in the development of resistance to this drug in various fungal strains and, simultaneously has occasioned the need for new antifungal agents. Herein, we report the synthesis of 27 new FLC derivatives along with their antifungal activity against a panel of 13 clinically relevant fungal strains. We also explore their toxicity against mammalian cells, their hemolytic activity, as well as their mechanism of action...
March 31, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28382045/genome-wide-identification-of-the-mikc-type-mads-box-gene-family-in-gossypium-hirsutum-l-unravels-their-roles-in-flowering
#7
Zhongying Ren, Daoqian Yu, Zhaoen Yang, Changfeng Li, Ghulam Qanmber, Yi Li, Jie Li, Zhao Liu, Lili Lu, Lingling Wang, Hua Zhang, Quanjia Chen, Fuguang Li, Zuoren Yang
Cotton is one of the major world oil crops. Cottonseed oil meets the increasing demand of fried food, ruminant feed, and renewable bio-fuels. MADS intervening keratin-like and C-terminal (MIKC)-type MADS-box genes encode transcription factors that have crucial roles in various plant developmental processes. Nevertheless, this gene family has not been characterized, nor its functions investigated, in cotton. Here, we performed a comprehensive analysis of MIKC-type MADS genes in the tetraploid Gossypium hirsutum L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28343171/circulating-free-light-chain-measurement-in-the-diagnosis-prognostic-assessment-and-evaluation-of-response-of-al-amyloidosis-comparison-of-freelite-and-n-latex-flc-assays
#8
Giovanni Palladini, Arnaud Jaccard, Paolo Milani, David Lavergne, Andrea Foli, Sebastien Bender, Francesca Lavatelli, Tiziana Bosoni, Veronica Valentini, Laura Pirolini, Giovanni Ferraro, Marco Basset, Francesca Russo, Mario Nuvolone, Riccardo Albertini, Michel Cogne, Giampaolo Merlini
BACKGROUND: The measurement of circulating free light chain (FLC) is essential in the diagnosis, prognostic stratification and evaluation of response to therapy in light chain (AL) amyloidosis. For more than 10 years, this has been done with an immunonephelometric assay based on polyclonal antibodies (Freelite), and cutoffs for staging and response assessment have been validated with this method. Recently, a new assay based on monoclonal antibodies (N latex FLC) has been marketed in Europe...
March 27, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28333300/comparison-of-global-gene-expression-profiles-of-microdissected-human-foetal-leydig-cells-with-their-normal-and-hyperplastic-adult-equivalents
#9
Grete Lottrup, Kirstine Belling, Henrik Leffers, John E Nielsen, Marlene D Dalgaard, Anders Juul, Niels E Skakkebæk, Søren Brunak, Ewa Rajpert-De Meyts
STUDY QUESTION: Do human adult Leydig cells (ALCs) within hyperplastic micronodules display characteristics of foetal LCs (FLCs)? SUMMARY ANSWER: The gene expression profiles of FLCs and all ALC subgroups were clearly different, but there were no significant differences in expressed genes between the normally clustered and hyperplastic ALCs. WHAT IS KNOWN ALREADY: LCs are the primary androgen producing cells in males throughout development and appear in chronologically distinct populations; FLCs, neonatal LCs and ALCs...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28316114/a-single-haplotype-hyposensitive-to-light-and-requiring-strong-vernalization-dominates-arabidopsis-thaliana-populations-in-patagonia-argentina
#10
Luciana Kasulin, Beth Rowan, Rolando J C León, Verena J Schuenemann, Detlef Weigel, Javier F Botto
The growing collection of sequenced or genotyped Arabidopsis thaliana accessions includes mostly individuals from the native Eurasian and N. African range and introduced North American populations. Here, we describe the genetic and phenotypic diversity, along with habitats and life history, of A. thaliana plants collected at the southernmost end of its worldwide distribution. Seed samples were harvested from plants growing in four sites within a ~3500-km(2) -area in Patagonia, Argentina, and represent the first germplasm to be collected in South America for this species...
March 17, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28304380/comprehensive-analysis-of-the-cancer-genome-atlas-reveals-a-unique-gene-and-non-coding-rna-signature-of-fibrolamellar-carcinoma
#11
Timothy A Dinh, Eva C M Vitucci, Eliane Wauthier, Rondell P Graham, Wendy A Pitman, Tsunekazu Oikawa, Mengjie Chen, Grace O Silva, Kevin G Greene, Michael S Torbenson, Lola M Reid, Praveen Sethupathy
Fibrolamellar carcinoma (FLC) is a unique liver cancer primarily affecting young adults and characterized by a fusion event between DNAJB1 and PRKACA. By analyzing RNA-sequencing data from The Cancer Genome Atlas (TCGA) for >9,100 tumors across ~30 cancer types, we show that the DNAJB1-PRKACA fusion is specific to FLCs. We demonstrate that FLC tumors (n = 6) exhibit distinct messenger RNA (mRNA) and long intergenic non-coding RNA (lincRNA) profiles compared to hepatocellular carcinoma (n = 263) and cholangiocarcinoma (n = 36), the two most common liver cancers...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28284031/immunoparesis-in-igm-gammopathies-as-a-useful-biomarker-to-predict-disease-progression
#12
Marcio Andrade-Campos, Ilda Murillo-Flórez, Ramón García-Sanz, Pilar Giraldo
BACKGROUND: The management of IgM monoclonal gammopathies undetermined significance (IgM-MGUS) and Waldenstrom's macroglobulinemia (WM) may be challenging. Modern immunoassays that quantify specific monoclonal heavy and light chain immunoglobulins are promising for their use in these applications. METHODS: Ninety consecutive patients (39 IgM-MGUS, 32 indolent WM [iWM], and 19 WM) seen between January 2007 and March 2014 were analyzed. Heavy/light chain (HLC) and serum free light chains assays (FLC) were determined at diagnosis to study their utility as biomarkers in IgM monoclonal gammopathies...
March 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28273088/depletion-of-arabidopsis-sc35-and-sc35-like-serine-arginine-rich-proteins-affects-the-transcription-and-splicing-of-a-subset-of-genes
#13
Qingqing Yan, Xi Xia, Zhenfei Sun, Yuda Fang
Serine/arginine-rich (SR) proteins are important splicing factors which play significant roles in spliceosome assembly and splicing regulation. However, little is known regarding their biological functions in plants. Here, we analyzed the phenotypes of mutants upon depleting different subfamilies of Arabidopsis SR proteins. We found that loss of the functions of SC35 and SC35-like (SCL) proteins cause pleiotropic changes in plant morphology and development, including serrated leaves, late flowering, shorter roots and abnormal silique phyllotaxy...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28261921/divergence-of-annual-and-perennial-species-in-the-brassicaceae-and-the-contribution-of-cis-acting-variation-at-flc-orthologues
#14
C Kiefer, E Severing, R Karl, S Bergonzi, M Koch, A Tresch, G Coupland
Variation in life history contributes to reproductive success in different environments. Divergence of annual and perennial angiosperm species is an extreme example that has occurred frequently. Perennials survive for several years and restrict the duration of reproduction by cycling between vegetative growth and flowering, whereas annuals live for one year and flower once. We used the tribe Arabideae (Brassicaceae) to study the divergence of seasonal flowering behavior among annual and perennial species. In perennial Brassicaceae, orthologues of FLOWERING LOCUS C (FLC), a floral inhibitor in Arabidopsis thaliana, are repressed by winter cold and reactivated in spring conferring seasonal flowering patterns, whereas in annuals they are stably repressed by cold...
March 6, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28261246/possible-role-of-mads-affecting-flowering-3-and-b-box-domain-protein-19-in-flowering-time-regulation-of-arabidopsis-mutants-with-defects-in-nonsense-mediated-mrna-decay
#15
Zeeshan Nasim, Muhammad Fahim, Ji Hoon Ahn
Eukaryotic cells use nonsense-mediated mRNA decay (NMD) to clear aberrant mRNAs from the cell, thus preventing the accumulation of truncated proteins. In Arabidopsis, two UP-Frameshift (UPF) proteins, UPF1 and UPF3, play a critical role in NMD. Although deficiency of UPF1 and UPF3 leads to various developmental defects, little is known about the mechanism underlying the regulation of flowering time by NMD. Here, we showed that the upf1-5 and upf3-1 mutants had a late-flowering phenotype under long-day conditions and the upf1-5 upf3-1 double mutants had an additive effect in delaying flowering time...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28214923/urinary-free-light-chains-may-help-to-identify-infection-in-patients-with-elevated-systemic-inflammation-due-to-rheumatic-disease
#16
Carsten P Bramlage, Britta Froelich, Manuel Wallbach, Joan Minguet, Clemens Grupp, Cornelia Deutsch, Peter Bramlage, Gerhard A Müller, Michael Koziolek
The risk of infection in patients with rheumatic diseases is elevated, but a clear marker to differentiate the cause of the systemic inflammation is missing. We assessed the ability urinary immunoglobulin free light chains (FLCs) to indicate the presence of infection in patients with rheumatic disease. We performed a retrospective analysis of patients with rheumatic disease attending the Georg-August University Hospital in Goettingen, Germany, from January 2011 to December 2013. Subjects were included if they had urine levels of κ and λ FLCs available...
February 18, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28210504/comparison-of-maximum-stretch-forces-between-femtosecond-laser-assisted-capsulotomy-and-continuous-curvilinear-capsulorhexis
#17
Mari Takagi, Takashi Kojima, Kei Ichikawa, Yoshiki Tanaka, Yukihito Kato, Rie Horai, Akeno Tamaoki, Kazuo Ichikawa
The current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentric CCCs were also created to simulate real cataract surgery. For FLC, capsulotomies 5.3 mm in diameter were created using the LenSx® (Alcon) platform. Fresh porcine eyes were used in all experiments. The edges of the capsule openings were pulled at a constant speed using two L-shaped jigs...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28188267/phosphorylation-of-spt5-by-cdkd-2-is-required-for-vip5-recruitment-and-normal-flowering-in-arabidopsis-thaliana
#18
Chengyuan Lu, Yongke Tian, Shiliang Wang, Yanhua Su, Ting Mao, Tongtong Huang, Qingqing Chen, Zuntao Xu, Yong Ding
The elongation factor suppressor of Ty 5 homolog (Spt5) is a regulator of transcription and histone methylation. In humans, phosphorylation of SPT5 by P-TEFb, a protein kinase composed of Cyclin-dependent kinase 9 (CDK9) and cyclin T, interacts with the RNA polymerase II-associated factor1 (PAF1) complex. However, the mechanism of SPT5 phosphorylation is not well understood in plants. Here, we examine the function of SPT5 in Arabidopsis thaliana and find that spt5 mutant flowers early under long-day and short-day conditions...
February 2017: Plant Cell
https://www.readbyqxmd.com/read/28181910/clinical-usefulness-of-serum-free-light-chains-measurement-in-patients-with-multiple-myeloma-comparative-analysis-of-two-different-tests
#19
Tadeusz Kubicki, Dominik Dytfeld, Aleksandra Baszczuk, Ewa Wysocka, Mieczysław Komarnicki, Krzysztof Lewandowski
INTRODUCTION: There are two commercially available tests for measurement of serum free light chains (sFLC) in multiple myeloma (MM) patients - Freelite and N Latex FLC. The aim of this study was to perform an assessment and direct comparison of the usefulness of the methods in routine clinical practice. METHODS: 40 refractory/relapsed MM patients underwent routine disease activity assessment studies, along with sFLC analysis using both assays. Correlation and concordance between the tests and sensitivity of studied methods of sFLC assessment were established...
January 4, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28176517/regulation-of-erg3-erg6-and-erg11-genes-in-antifungal-resistant-isolates-of-candida-parapsilosis
#20
Ensieh Lotfali, Ali Ghajari, Parivash Kordbacheh, Farideh Zaini, Hossein Mirhendi, Rasoul Mohammadi, Fatemeh Noorbakhsh, Sassan Rezaie
Background: Candida parapsilosis is one of the five common strains of yeasts involved in invasive candidiasis. The expression analysis of sterol biosynthesis pathway genes, which are associated with resistance, can assist the better understanding of antifungal resistance mechanisms. Method: The antifungal susceptibility of 120 clinical C. parapsilosis isolates was examined. The changes in the gene expression related to resistance were analyzed. Results: Eight strains were resistant to fluconazole (FLC), itraconazole (ITC), and amphotericin B (AMB)...
February 8, 2017: Iranian Biomedical Journal
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