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https://www.readbyqxmd.com/read/28707679/anaplastic-thyroid-carcinoma-from-clinicopathology-to-genetics-and-advanced-therapies
#1
REVIEW
Eleonora Molinaro, Cristina Romei, Agnese Biagini, Elena Sabini, Laura Agate, Salvatore Mazzeo, Gabriele Materazzi, Stefano Sellari-Franceschini, Alessandro Ribechini, Liborio Torregrossa, Fulvio Basolo, Paolo Vitti, Rossella Elisei
Anaplastic thyroid carcinoma (ATC) is a rare malignancy, accounting for 1-2% of all thyroid cancers. Although rare, ATC accounts for the majority of deaths from thyroid carcinoma. ATC often originates in a pre-existing thyroid cancer lesion, as suggested by the simultaneous presence of areas of differentiated or poorly differentiated thyroid carcinoma. ATC is characterized by the accumulation of several oncogenic alterations, and studies have shown that an increased number of oncogenic alterations equates to an increased level of dedifferentiation and aggressiveness...
July 14, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28480320/data-of-10-ssr-markers-for-genomes-of-homo-sapiens-and-monkeys
#2
K K V V V S Reddy, S Viswanadha Raju, Chinta Someswara Rao
In this data, we present 10 Simple Sequence Repeat(SSR) markers TAGA, TCAT, GAAT, AGAT, AGAA, GATA, TATC, CTTT, TCTG and TCTA which are extracted from the genomes of homo sapiens and monkeys using string matching mechanism [1]. All loci showed 4 Base Pair(bp) in allele size, indicating that there are some polymorphisms between individuals correlating to the number of SSR repeats that maybe useful for the detection of similarity among the genotypes. Collectively, these data show that the SSR extraction is a valuable method to illustrate genetic variation of genomes...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28454702/creatine-biosynthesis-and-transport-by-the-term-human-placenta
#3
Stacey J Ellery, Paul A Della Gatta, Clinton R Bruce, Greg M Kowalski, Miranda Davies-Tuck, Joanne C Mockler, Padma Murthi, David W Walker, Rod J Snow, Hayley Dickinson
INTRODUCTION: Creatine is an amino acid derivative that is involved in preserving ATP homeostasis. Previous studies suggest an important role for the creatine kinase circuit for placental ATP turnover. Creatine is obtained from both the diet and endogenous synthesis, usually along the renal-hepatic axis. However, some tissues with a high-energy demand have an inherent capacity to synthesise creatine. In this study, we determined if the term human placenta has the enzymatic machinary to synthesise creatine...
April 2017: Placenta
https://www.readbyqxmd.com/read/28405025/high-avidity-iga-protects-the-intestine-by-enchaining-growing-bacteria
#4
Kathrin Moor, Médéric Diard, Mikael E Sellin, Boas Felmy, Sandra Y Wotzka, Albulena Toska, Erik Bakkeren, Markus Arnoldini, Florence Bansept, Alma Dal Co, Tom Völler, Andrea Minola, Blanca Fernandez-Rodriguez, Gloria Agatic, Sonia Barbieri, Luca Piccoli, Costanza Casiraghi, Davide Corti, Antonio Lanzavecchia, Roland R Regoes, Claude Loverdo, Roman Stocker, Douglas R Brumley, Wolf-Dietrich Hardt, Emma Slack
Vaccine-induced high-avidity IgA can protect against bacterial enteropathogens by directly neutralizing virulence factors or by poorly defined mechanisms that physically impede bacterial interactions with the gut tissues ('immune exclusion'). IgA-mediated cross-linking clumps bacteria in the gut lumen and is critical for protection against infection by non-typhoidal Salmonella enterica subspecies enterica serovar Typhimurium (S. Typhimurium). However, classical agglutination, which was thought to drive this process, is efficient only at high pathogen densities (≥10(8) non-motile bacteria per gram)...
April 27, 2017: Nature
https://www.readbyqxmd.com/read/28404110/ombitasvir-paritaprevir-and-ritonavir-plus-ribavirin-for-chronic-hepatitis-c-virus-genotype-4-infection-in-egyptian-patients-with-or-without-compensated-cirrhosis-agate-ii-a-multicentre-phase-3-partly-randomised-open-label-trial
#5
Imam Waked, Gamal Shiha, Roula B Qaqish, Gamal Esmat, Ayman Yosry, Mohamed Hassany, Reham Soliman, Mohammad A Mohey, Naglaa Allam, Naglaa Zayed, Tarik Asselah, Coleen Hall, Rebecca Redman, Niloufar Mobashery, Wahid Doss
BACKGROUND: In Egypt, chronic hepatitis C virus (HCV) infection occurs in around 10% of the population (about 8 million individuals), and is a leading cause of liver cirrhosis, hepatocellular carcinoma, and mortality. Although HCV genotype 4 constitutes about 20% of HCV infections worldwide, the prevalence in Egypt is more than 90%. We assessed the efficacy and safety of the two direct-acting antiviral drugs ombitasvir, an NS5A inhibitor, and paritaprevir, an NS3/4A protease inhibitor dosed with ritonavir, plus ribavirin in treatment of chronic HCV infection in Egypt...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404108/ombitasvir-paritaprevir-and-ritonavir-plus-ribavirin-in-adults-with-hepatitis-c-virus-genotype-4-infection-and-cirrhosis-agate-i-a-multicentre-phase-3-randomised-open-label-trial
#6
Tarik Asselah, Christophe Hézode, Roula B Qaqish, Magdy ElKhashab, Tarek Hassanein, George Papatheodoridis, Jordan J Feld, Christophe Moreno, Stefan Zeuzem, Peter Ferenci, Yao Yu, Rebecca Redman, Tami Pilot-Matias, Niloufar Mobashery
BACKGROUND: Hepatitis C virus (HCV) genotype 4 infection is most commonly reported in sub-Saharan Africa and the Middle East; however, prevalence is increasing worldwide through immigration. HCV genotype 4 accounts for 20% of all infections, but clinical trial data for treatment remain limited. We assessed the combination of two direct-acting antivirals, ombitasvir (NS5A inhibitor) and paritaprevir (NS3/4A protease inhibitor; co-dosed with ritonavir) plus ribavirin in patients with HCV genotype 4 infection and compensated cirrhosis...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28325734/does-maternal-fetal-transfer-of-creatine-occur-in-pregnant-sheep
#7
Syed Baharom, Robert De Matteo, Stacey Ellery, Paul Della Gatta, Clinton R Bruce, Greg M Kowalski, Nadia Hale, Hayley Dickinson, Richard Harding, David Walker, Rodney J Snow
Our aim was to determine the disposition of creatine in ovine pregnancy and whether creatine is transferred across the placenta from mother to fetus. Pregnant ewes received either 1) a continuous intravenous infusion of creatine monohydrate or saline from 122 to 131 days gestation, with maternal and fetal arterial blood and amniotic fluid samples collected daily for creatine analysis and fetal tissues collected at necropsy at 133 days for analysis of creatine content, or 2) a single systemic bolus injection of [(13)C]creatine monohydrate at 130 days of gestation, with maternal and fetal arterial blood, uterine vein blood, and amniotic fluid samples collected before and for 4 h after injection and analyzed for creatine, creatine isotopic enrichment, and guanidinoacetic acid (GAA; precursor of creatine) concentrations...
July 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28318881/targeted-therapy-in-thyroid-cancer-state-of-the-art
#8
REVIEW
L Valerio, L Pieruzzi, C Giani, L Agate, V Bottici, L Lorusso, V Cappagli, L Puleo, A Matrone, D Viola, C Romei, R Ciampi, E Molinaro, R Elisei
Thyroid cancer typically has a good outcome following standard treatments, which include surgery, radioactive iodine ablation for differentiated tumours and treatment with thyrotropine hormone-suppressive levothyroxine. Thyroid cancers that persist or recur following these therapies have a poorer prognosis. Cytotoxic chemotherapy or external beam radiotherapy has a low efficacy in these patients. 'Target therapy' with tyrosine kinase inhibitors (TKIs) represent an important therapeutic option for the treatment of advanced cases of radioiodine refractory (RAI-R) differentiated thyroid cancer (DTC), medullary thyroid cancer (MTC) and possibly for cases of poorly differentiated (PDTC) and anaplastic thyroid cancer (ATC)...
May 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28285332/the-role-of-l-arginine-l-homoarginine-nitric-oxide-pathway-for-aortic-distensibility-and-intima-media-thickness-in-stroke-patients
#9
Arash Haghikia, Georgi Radoslavov Yanchev, Arslan Arinc Kayacelebi, Erik Hanff, Nils Bledau, Christian Widera, Kristina Sonnenschein, Aiden Haghikia, Karin Weissenborn, Johann Bauersachs, Udo Bavendiek, Dimitrios Tsikas
Asymmetric dimethylarginine (ADMA) and L-homoarginine (hArg) are L-arginine (Arg) metabolites derived from different pathways. Protein arginine N-methyltransferase (PRMT) and subsequent proteolysis of proteins containing methylarginine residues release ADMA. Arginine:glycine amidinotransferase (AGAT) converts Arg to hArg and guanidinoacetate (GAA). While high concentrations of ADMA and low concentrations of hArg in the blood have been established as cardiovascular risk markers, the cardiovascular relevance of GAA is still unexplored...
March 11, 2017: Amino Acids
https://www.readbyqxmd.com/read/28265784/-all-i-need-is-help-to-do-well-herbs-medicines-faith-and-syncretism-in-the-negotiation-of-elder-health-treatment-in-rural-ghana
#10
Eileen Smith-Cavros, Joyce Avotri-Wuaku, Albert Wuaku, Amal Bhullar
This qualitative research sought answers to questions about how elders in Agate, Ghana, coped with the challenges of illness in a rural village and in particular how they negotiated treatment for their illnesses within a flawed and limited healthcare system. In our study, 22 of 28 interviewees used all methods available to them (biomedical approaches [doctors and/or hospitals and/or doctor-prescribed medications], herbs, over-the-counter medicines [i.e., acetaminophen painkillers], and faith-based methods [praying/fasting/laying of hands/holy food and/or water]) in attempts to heal their illnesses...
March 6, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28148286/fifteen-year-follow-up-of-italian-families-affected-by-arginine-glycine-amidinotransferase-deficiency
#11
Roberta Battini, M Grazia Alessandrì, Claudia Casalini, Manuela Casarano, Michela Tosetti, Giovanni Cioni
BACKGROUND: Arginine:glycine amidinotransferase deficiency (AGAT-d) is a very rare inborn error of creatine synthesis mainly characterized by absence of brain Creatine (Cr) peak, intellectual disability, severe language impairment and behavioural disorder and susceptible to supplementary Cr treatment per os. Serial examinations by magnetic resonance spectroscopy are required to evaluate Cr recovery in brain during treatment of high doses of Cr per os, which have been proved beneficial and effective in treating main clinical symptoms...
February 2, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28000250/data-driven-region-of-interest-selection-without-inflating-type-i-error-rate
#12
Joseph L Brooks, Alexia Zoumpoulaki, Howard Bowman
In ERP and other large multidimensional neuroscience data sets, researchers often select regions of interest (ROIs) for analysis. The method of ROI selection can critically affect the conclusions of a study by causing the researcher to miss effects in the data or to detect spurious effects. In practice, to avoid inflating Type I error rate (i.e., false positives), ROIs are often based on a priori hypotheses or independent information. However, this can be insensitive to experiment-specific variations in effect location (e...
January 2017: Psychophysiology
https://www.readbyqxmd.com/read/27929713/postoperative-thyroglobulin-and-neck-ultrasound-in-the-risk-restratification-and-decision-to-perform-131i-ablation
#13
Antonio Matrone, Carla Gambale, Paolo Piaggi, David Viola, Carlotta Giani, Laura Agate, Valeria Bottici, Francesca Bianchi, Gabriele Materazzi, Paolo Vitti, Eleonora Molinaro, Rossella Elisei
Context: There is much debate surrounding the choice of which patient should be submitted to postsurgical remnant radioiodine remnant ablation (RRA), particularly in low-risk (LR) and intermediate-risk (IR) differentiated thyroid cancer (DTC). Objective: The aim of this study was to evaluate the role of postoperative high-sensitive thyroglobulin (Tg) on L-thyroxine (LT4-HSTg) and postoperative neck ultrasound (US) in risk restratification and decision to perform RRA...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27909961/short-peptides-regulate-gene-expression
#14
V Kh Khavinson, N S Lin'kova, S I Tarnovskaya
Short peptides constitute the system of signal molecules regulating the functions of the organism at the molecular, genetic, subcellular, cellular, and tissue levels. One short peptide can regulate dozens of genes, but the molecular mechanism of this process remains unclear. We suppose that short peptides penetrate through the cytoplasmic and nuclear membrane and bind to DNA. Spatial models of DNA-peptide complexes are constructed for 19 short peptides by the docking method. Some peptides have the same binding sites...
December 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27883908/scalable-preparation-characterization-and-application-of-alkali-treated-starch-as-a-new-organic-base-catalyst
#15
Fatemeh Tamaddon, MohammadTaghi KazemiVarnamkhasti
Preparation, characterization, and application of alkali starch (AS) given by dry co-grinding of starch and alkali is described in this work. Grinding using a mortar (agate) and pestle or, more conveniently, a ball mill has been found to be satisfactory for the preparation of the AS. The AS products were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) and x-ray fluorescence (XRF) analyses. The base capacities of ASs were 4.25-4.45 mmol/g, respectively...
January 2, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/27837548/left-ventricular-function-assessment-using-123-i-99m-tc-dual-isotope-acquisition-with-two-semi-conductor-cadmium-zinc-telluride-czt-cameras-a-gated-cardiac-phantom-study
#16
Tanguy Blaire, Alban Bailliez, Fayçal Ben Bouallegue, Dimitri Bellevre, Denis Agostini, Alain Manrique
BACKGROUND: The impact of increased energy resolution of cadmium-zinc-telluride (CZT) cameras on the assessment of left ventricular function under dual-isotope conditions ((99m)Tc and (123)I) remains unknown. The Amsterdam-gated dynamic cardiac phantom (AGATE, Vanderwilt techniques, Boxtel, The Netherlands) was successively filled with a solution of (123)I alone, (99m)Tc alone, and a mixture of (123)I and (99m)Tc. A total of 12 datasets was acquired with each commercially available CZT camera (DNM 530c, GE Healthcare and DSPECT, Biosensors International) using both energy windows ((99m)Tc or (123)I) with ejection fraction set to 33, 45, and 60 %...
December 2016: EJNMMI Physics
https://www.readbyqxmd.com/read/27702552/the-effect-of-culture-medium-and-carrier-on-explant-culture-of-human-limbal-epithelium-a-comparison-of-ultrastructure-keratin-profile-and-gene-expression
#17
COMPARATIVE STUDY
Meeta Pathak, O K Olstad, Liv Drolsum, Morten C Moe, Natalia Smorodinova, Sarka Kalasova, Katerina Jirsova, Bjørn Nicolaissen, Agate Noer
Patients with limbal stem cell deficiency (LSCD) often experience pain and photophobia due to recurrent epithelial defects and chronic inflammation of the cornea. Successfully restoring a healthy corneal surface in these patients by transplantation of ex vivo expanded human limbal epithelial cells (LECs) may alleviate these symptoms and significantly improve their quality of life. The clinical outcome of transplantation is known to be influenced by the quality of transplanted cells. Presently, several different protocols for cultivation and transplantation of LECs are in use...
December 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27619374/mercury-accumulation-in-marine-fish-most-favoured-by-malaysian-women-the-predictors-and-the-potential-health-risk
#18
Pravina Jeevanaraj, Zailina Hashim, Saliza Mohd Elias, Ahmad Zaharin Aris
We identified marine fish species most preferred by women at reproductive age in Selangor, Malaysia, mercury concentrations in the fish muscles, factors predicting mercury accumulation and the potential health risk. Nineteen most preferred marine fish species were purchased (n = 175) from selected fisherman's and wholesale market. Length, weight, habitat, feeding habit and trophic level were recognised. Edible muscles were filleted, dried at 80 °C, ground on an agate mortar and digested in Multiwave 3000 using HNO3 and H2O2...
December 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27591542/next-generation-sequencing-analysis-of-off-ladder-alleles-due-to-migration-shift-caused-by-sequence-variation-at-d12s391-locus
#19
Koji Fujii, Haruhiko Watahiki, Yusuke Mita, Yasuki Iwashima, Hajime Miyaguchi, Tetsushi Kitayama, Hiroaki Nakahara, Natsuko Mizuno, Kazumasa Sekiguchi
In short tandem repeat (STR) analysis, length polymorphisms are detected by capillary electrophoresis (CE). At most STR loci, mobility shift due to sequence variation in the repeat region was thought not to affect the typing results. In our recent population studies of 1501 Japanese individuals, off-ladder calls were observed at the D12S391 locus using PowerPlex Fusion in nine samples for allele 22, one sample for allele 25, and one sample for allele 26. However, these samples were typed as ordinary alleles within the bins using GlobalFiler...
September 2016: Legal Medicine
https://www.readbyqxmd.com/read/27570632/sex-chromosome-evolution-in-snakes-inferred-from-divergence-patterns-of-two-gametologous-genes-and-chromosome-distribution-of-sex-chromosome-linked-repetitive-sequences
#20
Kazumi Matsubara, Chizuko Nishida, Yoichi Matsuda, Yoshinori Kumazawa
BACKGROUND: The discovery of differentially organized sex chromosome systems suggests that heteromorphic sex chromosomes evolved from a pair of homologous chromosomes. Whereas karyotypes are highly conserved in alethinophidian snakes, the degeneration status of the W chromosomes varies among species. The Z and W chromosomes are morphologically homomorphic in henophidian species, whereas in snakes belonging to caenophidian families the W chromosomes are highly degenerated. Snakes therefore are excellent animal models in which to study sex chromosome evolution...
2016: Zoological Letters
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