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https://www.readbyqxmd.com/read/29228027/an-insulin-resistance-associated-neural-correlate-of-impulsivity-in-type-2-diabetes-mellitus
#1
Kristen L Eckstrand, Nishit Mummareddy, Hakmook Kang, Ronald Cowan, Minchun Zhou, David Zald, Heidi J Silver, Kevin D Niswender, Malcolm J Avison
Central insulin resistance (IR) influences striatal dopamine (DA) tone, an important determinant of behavioral self-regulation. We hypothesized that an association exists between the degree of peripheral IR and impulse control, mediated by the impact of IR on brain circuits controlling the speed of executing "go" and/or "stop" responses. We measured brain activation and associated performance on a stop signal task (SST) in obese adults with type 2 diabetes (age, 48.1 ± 6.9 yrs (mean ± SD); BMI, 36.5 ± 4...
2017: PloS One
https://www.readbyqxmd.com/read/29226331/a-novel-pathway-activated-by-somatostatin-receptor-type-2-sst2-inhibition-of-pituitary-tumor-cell-migration-and-invasion-through-cytoskeleton-protein-recruitment
#2
E Peverelli, E Giardino, D Treppiedi, R Catalano, F Mangili, M Locatelli, A G Lania, M Arosio, A Spada, G Mantovani
The pharmacological therapy of GH-secreting pituitary tumors is based on somatostatin (SS) analogs that reduce GH secretion and cell proliferation by binding mainly SS receptors type 2 (SST2). Antimigratory effects of SS have been demonstrated in different cell models, but no data on pituitary tumors are available. Aims of this study were to evaluate SST2 effects on migration and invasion of human and rat tumoral somatotrophs, and to elucidate the molecular mechanism involved focusing on the role of cofilin and filamin A (FLNA)...
December 11, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29225799/kidney-involvement-in-the-schnitzler-syndrome-a-rare-disease
#3
REVIEW
Carlo Basile, Luigi Rossi, Francesco Casucci, Annalisa Teutonico, Pasquale Libutti, Piero Lisi, Carlo Lomonte, Raffaele Manna
The Schnitzler syndrome (SS) is a rare and underdiagnosed entity that associates a chronic urticarial rash, monoclonal IgM (or sometimes IgG) gammopathy and signs and symptoms of systemic inflammation. During the past 45 years, the SS has evolved from an elusive little-known disorder to the paradigm of a late-onset acquired auto-inflammatory syndrome. Though there is no definite proof of its precise pathogenesis, it should be considered as an acquired disease involving abnormal stimulation of the innate immune system, which can be reversed by the interleukin-1 receptor antagonist anakinra...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29225642/comparison-of-apical-transportation-with-the-use-of-rotary-system-and-reciprocating-handpiece-with-precurved-hand-files-an-in-vitro-study
#4
Fatemeh Mohammadian, Atefeh Sadeghi, Fatemeh Dibaji, Mona Sadegh, Zahra Ghoncheh, Mohammad Javad Kharrazifard
Introduction: Success of root canal treatment depends on several factors; among which, maintaining the original canal path during mechanical preparation is extremely important. This in vitro study aimed to compare apical transportation using RaCe NiTi rotary system and precurved stainless steel (SS) hand files in a reciprocating handpiece. Methods and Materials: Mesiobuccal canals of 40 extracted human mandibular first and second molars with 20 to 45° curvatures and 3 to 7 mm curve radius were chosen for this study...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29225463/nano-copper-bearing-stainless-steel-promotes-fracture-healing-by-accelerating-the-callus-evolution-process
#5
Lei Wang, Guoyuan Li, Ling Ren, Xiangdong Kong, Yugang Wang, Xiuguo Han, Wenbo Jiang, Kerong Dai, Ke Yang, Yongqiang Hao
Treatment for fractures requires internal fixation devices, which are mainly produced from stainless steel or titanium alloy without biological functions. Therefore, we developed a novel nano-copper-bearing stainless steel with nano-sized copper-precipitation (317L-Cu SS). Based on previous studies, this work explores the effect of 317L-Cu SS on fracture healing; that is, proliferation, osteogenic differentiation, osteogenesis-related gene expression, and lysyl oxidase activity of human bone mesenchymal stem cells were detected in vitro...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29225052/supersulfated-low-molecular-weight-heparin-synergizes-with-igf1r-ir-inhibitor-to-suppress-synovial-sarcoma-growth-and-metastases
#6
Giuliana Cassinelli, Laura Dal Bo, Enrica Favini, Denis Cominetti, Sabina Pozzi, Monica Tortoreto, Michelandrea De Cesare, Daniele Lecis, Eugenio Scanziani, Lucia Minoli, Annamaria Naggi, Israel Vlodavsky, Nadia Zaffaroni, Cinzia Lanzi
Synovial sarcoma (SS) is an aggressive tumor with propensity for lung metastases which significantly impact patients' prognosis. New therapeutic approaches are needed to improve treatment outcome. Targeting the heparanase/heparan sulfate proteoglycan system by heparin derivatives which act as heparanase inhibitors/heparan sulfate mimetics is emerging as a therapeutic approach that can sensitize the tumor response to chemotherapy. We investigated the therapeutic potential of a supersulfated low molecular weight heparin (ssLMWH) in preclinical models of SS...
December 7, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29224869/effects-of-straw-processing-and-pen-overstocking-on-the-growth-performance-and-sorting-characteristics-of-diets-offered-to-replacement-holstein-dairy-heifers
#7
W K Coblentz, M S Akins, N M Esser, R K Ogden, S L Gelsinger
Our objectives were to evaluate the effects of pen-stocking density and straw processing on the growth performance, feed-bunk sorting behaviors, and hygiene of Holstein dairy heifers. Two corn silage-alfalfa haylage diets diluted with wheat straw were offered; diet composition was identical, except that one diet contained short (well-processed) straw (SS; 46.0% neutral detergent fiber, 12.9% crude protein, 60.7% total digestible nutrients, TDN), and the other long (poorly processed) straw (LS; 46.5% neutral detergent fiber, 12...
December 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29224680/pregnancy-in-systemic-lupus-erythematosus-and-antiphospholipid-syndrome
#8
REVIEW
Rebecca Fischer-Betz, Christof Specker
Systemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease with a high prevalence in females of childbearing age. Pregnancy in SLE nowadays has favorable outcomes for the majority of women. However, flares of disease activity, preeclampsia, fetal loss, and preterm birth are well-known risks in such pregnancies. Anti-SS-A(Ro)/SS-B(La) antibodies put fetuses at risk for congenital heart block and neonatal lupus. Several risk factors for adverse pregnancy outcomes have been identified. Women with antiphospholipid antibodies or antiphospholipid syndrome and lupus nephritis represent a group with high risk for obstetric complications...
June 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29224375/autoimmune-rheumatic-diseases-and-the-risk-of-parkinson-disease-a-nationwide-population-based-cohort-study-in-taiwan
#9
Chi-Ching Chang, Tzu-Min Lin, Yu-Sheng Chang, Wei-Sheng Chen, Jau-Jiuan Sheu, Yi-Hsuan Chen, Jin-Hua Chen
BACKGROUNDS: In autoimmune rheumatic diseases (ARDs), the levels of inflammatory mediators are increased and microglia may be activated, resulting in an inflammatory state and the degeneration of dopaminergic neurons. We investigated the association between ARDs and Parkinson disease (PD). METHODS: We identified ARD patients through the Taiwan National Health Insurance Research Database from 2001 to 2012. From the general population, we randomly selected a comparison cohort that was frequency-matched by age (in 5-year increments), sex, and index year...
December 11, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/29223532/new-insights-into-the-influence-of-monofluorination-on-dimyristoylphosphatidylcholine-membrane-properties-a-solid-state-nmr-study
#10
Marie-Claude Gagnon, Erik Strandberg, Anne S Ulrich, Jean-François Paquin, Michèle Auger
Solid-state 19F NMR spectroscopy is a method of choice to study the interactions between lipid membranes and other molecules such as peptides, proteins or drugs. Numerous fluorine-labeled NMR probes have been developed over the last few years, especially fluorine-labeled peptides. In order to develop a new kind of NMR reporter molecule and a complementary approach to fluorine-labeling of peptides, we synthesized six monofluorinated derivatives of the lipid dimyristoylphosphatidylcholine (F-DMPC), with the fluorine atom located along the acyl chain linked to the central glycerol position...
December 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29223482/reactor-performance-and-energy-analysis-of-solid-state-anaerobic-co-digestion-of-dairy-manure-with-corn-stover-and-tomato-residues
#11
Yangyang Li, Fuqing Xu, Yu Li, Jiaxin Lu, Shuyan Li, Ajay Shah, Xuehua Zhang, Hongyu Zhang, Xiaoyan Gong, Guoxue Li
Anaerobic co-digestion is commonly believed to be benefical for biogas production. However, additional of co-substrates may require additional energy inputs and thus affect the overall energy efficiency of the system. In this study, reactor performance and energy analysis of solid state anaerobic digestion (SS-AD) of tomato residues with dairy manure and corn stover were investigated. Different fractions of tomato residues (0, 20, 40, 60, 80 and 100%, based on volatile solid weight (VS)) were co-digested with dairy manure and corn stover at 15% total solids...
December 6, 2017: Waste Management
https://www.readbyqxmd.com/read/29223365/performance-of-spleen-stiffness-measurement-in-prediction-of-clinical-significant-portal-hypertension-a-meta-analysis
#12
Jinzhen Song, Jianbo Huang, He Huang, Shiyu Liu, Yan Luo
AIM: Our purpose was to evaluate the correlation between spleen stiffness (SS) measured by ultrasound-based elastography and hepatic venous pressure gradient (HVPG) and assess the accuracy of SS in detecting clinical significant portal hypertension (CSPH) and severe portal hypertension. METHOD: Nine studies were included from thorough literature research and selection processes. A random model was used to analyze the correlation between HVPG and SS. We adopted the bivariate mixed effects model to assess the diagnostic performance...
December 6, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29223133/how-stress-contributes-to-autoimmunity-lessons-from-sj%C3%A3-gren-s-syndrome-ss
#13
REVIEW
Fotini N Skopouli, Stergios Katsiougiannis
A large body of clinical evidence on the association between stressful life events and autoimmune diseases suggests that stress may play an important role in the pathogenesis of these disorders. In this article, we discuss the effects of stress, not on the immune system but on specific cell populations against which the autoimmune reactivity is directed. Using Sjögren's syndrome as a model autoimmune disease, we review the role of stress in the initiation and perpetuation of autoimmune reactivity. We present data that reveal the effects of stress on salivary gland epithelial cells, suggesting that stress can become immunogenic through its various effects on salivary gland epithelium...
December 9, 2017: FEBS Letters
https://www.readbyqxmd.com/read/29222450/elevation-of-autophagy-markers-in-sj%C3%A3-gren-syndrome-dry-eye
#14
Yong-Soo Byun, Hyun Jung Lee, Soojung Shin, So-Hyang Chung
Autophagy is known to be implicated in the pathogenesis of Sjögren syndrome (SS), but evidences are limited. We aimed to examine the levels of autophagy markers in tear film and conjunctival epithelial cells from SS dry eye patients, and analyze their correlations with clinical features. Patients with SS dry eye exhibited lower Schirmer values, lower tear breakup time, and higher ocular staining scores. In tears, ATG5 and LC3B-II/I levels were significantly higher in SS dry eye. ATG5 and LC3B-II mRNA in the conjunctiva were also elevated in SS dry eye compared with non-SS dry eye...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222303/responsiveness-of-patient-reported-outcome-measurement-information-system-promis-pain-domains-and-disease-specific-patient-reported-outcome-measures-in-children-and-adults-with-sickle-cell-disease
#15
REVIEW
Susanna Curtis, Amanda M Brandow
Case 1: A 33-year-old man with hemoglobin SS (homozygous hemoglobin S) disease presents for his regular clinic visit. He had 6 hospital admissions for pain over the past year. He also has avascular necrosis of the right hip. He takes daily hydroxyurea with hematologic changes indicative of compliance. He also takes morphine sustained release twice daily and morphine immediate release every 6 hours as needed for pain. He feels that more optimal pain control at home would help him reduce his number of hospital admissions in the upcoming year and improve his daily functioning at home...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222289/what-is-the-role-of-screening-for-pulmonary-hypertension-in-adults-and-children-with-sickle-cell-disease
#16
REVIEW
Shaina M Willen, Mark T Gladwin
Patient case: An 18-year-old male patient with homozygous hemoglobin SS disease was evaluated for progressive dyspnea and elevated tricuspid regurgitant jet velocity (TRV) on echocardiography. The patient's case is described in detail in Lancet1 He had been treated with regular transfusions since childhood for stroke, had rare episodes of vaso-occlusive pain episodes, and did not take narcotic pain medications. He presented with progressive severe dyspnea on exertion and lower extremity edema. His laboratory tests were notable for a total hemoglobin level of 11...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29221889/on-exploring-vocal-ornamentation-in-byzantine-chant
#17
Dimitrios S Delviniotis, Sergios Theodoridis
OBJECTIVES: A special vocal ornament in Byzantine chant (BC), the single cycle ornamentation structure (SCOS), is defined and compared with the vibrato with respect to its time (rate, extent) and spectral (slope [SS], relative speaker's formant [SPF] level, formant frequencies [Fi] and bandwidths [Bi], and noise-to-harmonics ratio [NHR]) characteristics. STUDY DESIGN: This is a comparative study between the vocal ornaments of SCOS and vibrato, of which time and spectral acoustic parameters were measured, statistically analyzed, and compared...
December 5, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29221181/analysis-of-ctcl-cell-lines-reveals-important-differences-between-mycosis-fungoides-s%C3%A3-zary-syndrome-vs-htlv-1-leukemic-cell-lines
#18
Elena Netchiporouk, Jennifer Gantchev, Matthew Tsang, Philippe Thibault, Andrew K Watters, John-Douglas Matthew Hughes, Feras M Ghazawi, Anders Woetmann, Niels Ødum, Denis Sasseville, Ivan V Litvinov
HTLV-1 is estimated to affect ~20 million people worldwide and in ~5% of carriers it produces Adult T-Cell Leukemia/Lymphoma (ATLL), which can often masquerade and present with classic erythematous pruritic patches and plaques that are typically seen in Mycosis Fungoides (MF) and Sézary Syndrome (SS), the most recognized variants of Cutaneous T-Cell Lymphomas (CTCL). For many years the role of HTLV-1 in the pathogenesis of MF/SS has been hotly debated. In this study we analyzed CTCL vs. HTLV-1+ leukemic cells...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221170/proteoglycan-targeting-applied-to-hypoxia-activated-prodrug-therapy-in-chondrosarcoma-first-proof-of-concept
#19
Aurélien Voissiere, Valérie Weber, Yvain Gerard, Françoise Rédini, Florian Raes, Jean-Michel Chezal, Françoise Degoul, Caroline Peyrode, Elisabeth Miot-Noirault
Due to its abundant chondrogenic matrix and hypoxic tissue, chondrosarcoma is chemo- and radio-resistant. Our group has developed a proteoglycan targeting strategy by using a quaternary ammonium (QA) function as a carrier of DNA alkylating agents to chondrosarcoma environment. Here, we assessed the relevance of this strategy applied to hypoxia-activated prodrugs, by conjugating a QA to 2-nitroimidazole phosphoramidate. This derivative, named as 8-QA, was evaluated respectively to its non-QA equivalent and to a QA-conjugated but non-hypoxia activated...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220290/synovial-sarcoma-current-concepts-and-future-perspectives
#20
Silvia Stacchiotti, Brian Andrew Van Tine
Synovial sarcoma (SS) is a rare sarcoma driven by a translocation between SS18 and SSX 1, 2, or 4. With approximately 800 to 1,000 cases a year in the United States, it most commonly affects young adults between the ages of 15 and 30 years. The resultant tumors are either monophasic (pure sarcomas), biphasic (a combination or epithelioid and sarcomatous components), or poorly differentiated. The hybrid transcription factor SS18:SSX alters SWItch/Sucrose Non-Fermentable (SWI/SNF) chromatin remodeling and global methylation patterns that may allow for future therapeutic opportunities...
December 8, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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