keyword
MENU ▼
Read by QxMD icon Read
search

leucin

keyword
https://www.readbyqxmd.com/read/27911006/lrrk2-levels-and-phosphorylation-in-parkinson-s-disease-brain-and-cases-with-restricted-lewy-bodies
#1
Nicolas Dzamko, Amanda M Gysbers, Rina Bandopadhyay, Marc F Bolliger, Akiko Uchino, Ye Zhao, Masaki Takao, Sandrine Wauters, Wilma D J van de Berg, Junko Takahashi-Fujigasaki, R Jeremy Nichols, Janice L Holton, Shigeo Murayama, Glenda M Halliday
BACKGROUND: Leucine rich repeat kinase 2 (LRRK2) is a promising target for the treatment of Parkinson's disease; however, little is known about the expression of LRRK2 in human brain and if/how LRRK2 protein levels are altered in Parkinson's disease. OBJECTIVES: We measured the protein levels of LRRK2 as well as its phosphorylation on serines 910, 935, and 973 in the postmortem brain tissue of Parkinson's disease patients and aged controls with and without Lewy bodies...
December 2, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27910839/accurate-hydrogen-parameters-for-the-amino-acid-l-leucine
#2
Jack Binns, Simon Parsons, Garry J McIntyre
The structure of the primary amino acid L-leucine has been determined for the first time by neutron diffraction. This was made possible by the use of modern neutron Laue diffraction to overcome the previously prohibitive effects of crystal size and quality. The packing of the structure into hydrophobic and hydrophilic layers is explained by the intermolecular interaction energies calculated using the PIXEL method. Variable-temperature data collections confirmed the absence of phase transitions between 120 and 300 K in the single-crystal form...
December 1, 2016: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
https://www.readbyqxmd.com/read/27909429/temperature-sensitivity-as-a-microbial-trait-using-parameters-from-macromolecular-rate-theory
#3
Charlotte J Alster, Peter Baas, Matthew D Wallenstein, Nels G Johnson, Joseph C von Fischer
The activity of soil microbial extracellular enzymes is strongly controlled by temperature, yet the degree to which temperature sensitivity varies by microbe and enzyme type is unclear. Such information would allow soil microbial enzymes to be incorporated in a traits-based framework to improve prediction of ecosystem response to global change. If temperature sensitivity varies for specific soil enzymes, then determining the underlying causes of variation in temperature sensitivity of these enzymes will provide fundamental insights for predicting nutrient dynamics belowground...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27909054/identification-of-a-substrate-selective-exosite-within-the-metalloproteinase-anthrax-lethal-factor
#4
Allison B Goldberg, Eunice Cho, Chad J Miller, Hua Jane Lou, Benjamin E Turk
The metalloproteinase anthrax lethal factor (LF) is secreted by Bacillus anthracis to promote disease virulence through disruption of host signaling pathways. LF is a highly specific protease, exclusively cleaving mitogen-activated protein kinase kinases (MKKs) and rodent NACHT leucine-rich repeat and pyrin domain containing protein 1B (NLRP1B). How LF achieves such restricted substrate specificity is not understood. Previous studies have suggested the existence of an exosite interaction between LF and MKKs that promotes cleavage efficiency and specificity...
December 1, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27907150/molecular-characterization-of-two-monoclonal-antibodies-against-the-same-epitope-on-b-cell-receptor-associated-protein-31
#5
Won-Tae Kim, Saemina Shin, Hyo Jeong Hwang, Min Kyu Kim, Han-Sung Jung, Hwangseo Park, Chun Jeih Ryu
Previously, we showed that B-cell receptor associated protein 31 (BAP31), an endoplasmic reticulum (ER) membrane chaperone, is also expressed on the cell surface by two monoclonal antibodies (MAbs) 297-D4 and 144-A8. Both MAbs recognize the same linear epitope on the C-terminal domain of BAP31, although they were independently established. Here, flow cytometric analysis showed that 144-A8 had additional binding properties to some cells, as compared to 297-D4. Quantitative antigen binding assays also showed that 144-A8 had higher antigen binding capacity than 297-D4...
2016: PloS One
https://www.readbyqxmd.com/read/27904153/genotype-and-phenotype-characterization-in-a-spanish-cohort-with-isovaleric-acidemia
#6
María L Couce, Luís Aldamiz-Echevarría, María A Bueno, Patricia Barros, Amaya Belanger-Quintana, Javier Blasco, María-Teresa García-Silva, Ana M Márquez-Armenteros, Isidro Vitoria, Inmaculada Vives, Rosa Navarrete, Ana Fernández-Marmiesse, Belén Pérez, Celia Pérez-Cerdá
Isovaleric acidemia (IVA) is a rare disorder of leucine metabolism. We carried out a multicenter study of IVA patients diagnosed by newborn screening (NBS) or symptoms clinics over a period of 28 years in Spain. Evaluated at diagnosis, data included age, detection method, levels of C5 and IVG, enzymatic studies, clinical presentation parameters and genotype in 16 patients. Follow-up data included C5 levels, intellectual quotient and correlation genotype-phenotype. IVA was detected by NBS in 8 patients (prevalence of 1/326 629)...
December 1, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27903833/meal-distribution-of-dietary-protein-and-leucine-influences-long-term-muscle-mass-and-body-composition-in-adult-rats
#7
Layne E Norton, Gabriel J Wilson, Christopher J Moulton, Donald K Layman
BACKGROUND: Protein quantity and quality at a meal affect muscle protein synthesis (MPS); however, long-term effects of protein distribution at individual meals on adult muscle mass remain unknown. OBJECTIVE: We used a precise feeding protocol in adult rats to determine if optimizing postmeal MPS response by modifying the meal distribution of protein, and the amino acid leucine (Leu), would affect muscle mass. METHODS: Two studies were conducted with the use of male Sprague-Dawley rats (∼300 g) trained to consume 3 meals/d, then assigned to diet treatments with identical macronutrient contents (16% of energy from protein, 54% from carbohydrates, and 30% from fat) but differing in protein quality or meal distribution...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903518/habituation-to-low-or-high-protein-intake-does-not-modulate-basal-or-postprandial-muscle-protein-synthesis-rates-a-randomized-trial
#8
Stefan Hm Gorissen, Astrid Mh Horstman, Rinske Franssen, Imre Wk Kouw, Benjamin T Wall, Nicholas A Burd, Lisette Cpgm de Groot, Luc Jc van Loon
BACKGROUND: Muscle mass maintenance is largely regulated by basal muscle protein synthesis rates and the ability to increase muscle protein synthesis after protein ingestion. To our knowledge, no previous studies have evaluated the impact of habituation to either low protein intake (LOW PRO) or high protein intake (HIGH PRO) on the postprandial muscle protein synthetic response. OBJECTIVE: We assessed the impact of LOW PRO compared with HIGH PRO on basal and postprandial muscle protein synthesis rates after the ingestion of 25 g whey protein...
November 30, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27903237/leucine-rich-repeat-kinase-2-lrrk2-regulates-%C3%AE-synuclein-clearance-in-microglia
#9
Tatsunori Maekawa, Toshikuni Sasaoka, Sadahiro Azuma, Takafumi Ichikawa, Heather L Melrose, Matthew J Farrer, Fumiya Obata
BACKGROUND: α-Synuclein (αSYN) has been genetically implicated in familial and sporadic Parkinson's disease (PD), and is associated with disease susceptibility, progression and pathology. Excess amounts of αSYN are toxic to neurons. In the brain, microglial αSYN clearance is closely related to neuronal survival. Leucine-rich repeat kinase 2 (LRRK2) is the one of the other genes implicated in familial and sporadic PD. While LRRK2 is known to be expressed in microglia, its true function remains to be elucidated...
November 30, 2016: BMC Neuroscience
https://www.readbyqxmd.com/read/27902979/altered-systemic-adipokines-in-patients-with-chronic-urticaria
#10
Hoang Kim Tu Trinh, Duy Le Pham, Ga-Young Ban, Hyun-Young Lee, Hae-Sim Park, Young-Min Ye
BACKGROUND: Increasing evidence suggests that adipokines affect immune responses and chronic urticaria (CU) is associated with an altered immune response related to chronic systemic inflammation. Our objectives were to investigate whether adipokines are involved in CU pathogenesis and to outline relationships between adipokines and urticaria severity and quality of life. METHODS: Serum adiponectin, leptin, lipocalin-2 (LCN2), interleukin (IL)-10, IL-6, and tumor necrosis factor (TNF)-α concentrations were measured by enzyme-linked immunosorbent assays in 191 CU patients and 89 healthy controls...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902448/rasgrp1-promotes-amphetamine-induced-motor-behavior-through-a-rhes-interaction-network-rhesactome-in-the-striatum
#11
Neelam Shahani, Supriya Swarnkar, Vincenzo Giovinazzo, Jenny Morgenweck, Laura M Bohn, Catherina Scharager-Tapia, Bruce Pascal, Pablo Martinez-Acedo, Kshitij Khare, Srinivasa Subramaniam
The striatum of the brain coordinates motor function. Dopamine-related drugs may be therapeutic to patients with striatal neurodegeneration, such as Huntington's disease (HD) and Parkinson's disease (PD), but these drugs have unwanted side effects. In addition to stimulating the release of norepinephrine, amphetamines, which are used for narcolepsy and attention-deficit/hyperactivity disorder (ADHD), trigger dopamine release in the striatum. The guanosine triphosphatase Ras homolog enriched in the striatum (Rhes) inhibits dopaminergic signaling in the striatum, is implicated in HD and L-dopa-induced dyskinesia, and has a role in striatal motor control...
November 15, 2016: Science Signaling
https://www.readbyqxmd.com/read/27900589/intrinsic-her2-v777l-mutation-mediates-resistance-to-trastuzumab-in-a-breast-cancer-patient
#12
Yosuke Hirotsu, Hiroshi Nakagomi, Kenji Amemiya, Toshio Oyama, Masayuki Inoue, Hitoshi Mochizuki, Masao Omata
HER2 (ERBB2) is an oncogene and 20% of breast cancers display HER2 amplification. The HER2 monoclonal antibody, trastuzumab, is used to treat breast cancers that display HER2 amplification, with good responses in 80-90% of cases; however, 10% of tumours develop resistance to trastuzumab. In this study, we collected data of primary breast cancer patients who treated at hospital during 2004-2014. In our cohort, 205 of 1497 primary breast cancer patients showed HER2-amplification, and 20 experienced recurrence after trastuzumab therapy...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27900420/nmr-based-metabolomic-approach-to-study-urine-samples-of-chronic-inflammatory-rheumatic-disease-patients
#13
Alessia Vignoli, Donatella Maria Rodio, Anna Bellizzi, Anatoly Petrovich Sobolev, Elena Anzivino, Monica Mischitelli, Leonardo Tenori, Federico Marini, Roberta Priori, Rossana Scrivo, Guido Valesini, Ada Francia, Manuela Morreale, Maria Rosa Ciardi, Marco Iannetta, Cristiana Campanella, Donatella Capitani, Claudio Luchinat, Valeria Pietropaolo, Luisa Mannina
The nuclear magnetic resonance (NMR)-based metabolomic approach was used as analytical methodology to study the urine samples of chronic inflammatory rheumatic disease (CIRD) patients. The urine samples of CIRD patients were compared to the ones of both healthy subjects and patients with multiple sclerosis (MS), another immuno-mediated disease. Urine samples collected from 39 CIRD patients, 25 healthy subjects, and 26 MS patients were analyzed using (1)H NMR spectroscopy, and the NMR spectra were examined using partial least squares-discriminant analysis (PLS-DA)...
November 30, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27899926/bioinformatic-analyses-of-subgroup-a-members-of-the-wheat-bzip-transcription-factor-family-and-functional-identification-of-tabzip174-involved-in-drought-stress-response
#14
Xueyin Li, Biane Feng, Fengjie Zhang, Yimiao Tang, Liping Zhang, Lingjian Ma, Changping Zhao, Shiqing Gao
Extensive studies in Arabidopsis and rice have demonstrated that Subgroup-A members of the bZIP transcription factor family play important roles in plant responses to multiple abiotic stresses. Although common wheat (Triticum aestivum) is one of the most widely cultivated and consumed food crops in the world, there are limited investigations into Subgroup A of the bZIP family in wheat. In this study, we performed bioinformatic analyses of the 41 Subgroup-A members of the wheat bZIP family. Phylogenetic and conserved motif analyses showed that most of the Subgroup-A bZIP proteins involved in abiotic stress responses of wheat, Arabidopsis, and rice clustered in Clade A1 of the phylogenetic tree, and shared a majority of conserved motifs, suggesting the potential importance of Clade-A1 members in abiotic stress responses...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27899501/unraveling-fungal-radiation-resistance-regulatory-networks-through-the-genome-wide-transcriptome-and-genetic-analyses-of-cryptococcus-neoformans
#15
Kwang-Woo Jung, Dong-Hoon Yang, Min-Kyu Kim, Ho Seong Seo, Sangyong Lim, Yong-Sun Bahn
The basidiomycetous fungus Cryptococcus neoformans has been known to be highly radiation resistant and has been found in fatal radioactive environments such as the damaged nuclear reactor at Chernobyl. To elucidate the mechanisms underlying the radiation resistance phenotype of C. neoformans, we identified genes affected by gamma radiation through genome-wide transcriptome analysis and characterized their functions. We found that genes involved in DNA damage repair systems were upregulated in response to gamma radiation...
November 29, 2016: MBio
https://www.readbyqxmd.com/read/27898833/a-cluster-of-nucleotide-binding-site-leucine-rich-repeat-genes-resides-in-a-barley-powdery-mildew-resistance-quantitative-trait-loci-on-7hl
#16
Carlos P Cantalapiedra, Bruno Contreras-Moreira, Cristina Silvar, Dragan Perovic, Frank Ordon, María Pilar Gracia, Ernesto Igartua, Ana M Casas
Powdery mildew causes severe yield losses in barley production worldwide. Although many resistance genes have been described, only a few have already been cloned. A strong QTL (quantitative trait locus) conferring resistance to a wide array of powdery mildew isolates was identified in a Spanish barley landrace on the long arm of chromosome 7H. Previous studies narrowed down the QTL position, but were unable to identify candidate genes or physically locate the resistance. In this study, the exome of three recombinant lines from a high-resolution mapping population was sequenced and analyzed, narrowing the position of the resistance down to a single physical contig...
July 2016: Plant Genome
https://www.readbyqxmd.com/read/27898808/candidate-gene-sequence-analyses-toward-identifying-type-resistance-to
#17
N R Redekar, E M Clevinger, M A Laskar, R M Biyashev, T Ashfield, R V Jensen, S C Jeong, S A Tolin, M A Saghai Maroof
is one of three genetic loci conferring strain-specific resistance to (SMV). The locus has been mapped to a 154-kb region on chromosome 14, containing a cluster of five nucleotide-binding leucine-rich repeat (NB-LRR) resistance genes. High sequence similarity between the candidate genes challenges fine mapping of the locus. Among the five, Glyma14g38533 showed the highest transcript abundance in 1 to 3 h of SMV-G7 inoculation. Comparative sequence analyses were conducted with the five candidate NB-LRR genes from susceptible (-type) soybean [ (L...
July 2016: Plant Genome
https://www.readbyqxmd.com/read/27898682/genetic-predisposition-to-an-impaired-metabolism-of-the-branched-chain-amino-acids-and-risk-of-type-2-diabetes-a-mendelian-randomisation-analysis
#18
Luca A Lotta, Robert A Scott, Stephen J Sharp, Stephen Burgess, Jian'an Luan, Therese Tillin, Amand F Schmidt, Fumiaki Imamura, Isobel D Stewart, John R B Perry, Luke Marney, Albert Koulman, Edward D Karoly, Nita G Forouhi, Rasmus J O Sjögren, Erik Näslund, Juleen R Zierath, Anna Krook, David B Savage, Julian L Griffin, Nishi Chaturvedi, Aroon D Hingorani, Kay-Tee Khaw, Inês Barroso, Mark I McCarthy, Stephen O'Rahilly, Nicholas J Wareham, Claudia Langenberg
BACKGROUND: Higher circulating levels of the branched-chain amino acids (BCAAs; i.e., isoleucine, leucine, and valine) are strongly associated with higher type 2 diabetes risk, but it is not known whether this association is causal. We undertook large-scale human genetic analyses to address this question. METHODS AND FINDINGS: Genome-wide studies of BCAA levels in 16,596 individuals revealed five genomic regions associated at genome-wide levels of significance (p < 5 × 10-8)...
November 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27895165/rats-with-a-missense-mutation-in-atm-display-neuroinflammation-and-neurodegeneration-subsequent-to-accumulation-of-cytosolic-dna-following-unrepaired-dna-damage
#19
Hazel Quek, John Luff, KaGeen Cheung, Sergei Kozlov, Magtouf Gatei, C Soon Lee, Mark C Bellingham, Peter G Noakes, Yi Chieh Lim, Nigel L Barnett, Steven Dingwall, Ernst Wolvetang, Tomoji Mashimo, Tara L Roberts, Martin F Lavin
Mutations in the ataxia-telangiectasia (A-T)-mutated (ATM) gene give rise to the human genetic disorder A-T, characterized by immunodeficiency, cancer predisposition, and neurodegeneration. Whereas a series of animal models recapitulate much of the A-T phenotype, they fail to present with ataxia or neurodegeneration. We describe here the generation of an Atm missense mutant [amino acid change of leucine (L) to proline (P) at position 2262 (L2262P)] rat by intracytoplasmic injection (ICSI) of mutant sperm into oocytes...
November 28, 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27893017/evaluation-of-cognitive-deficits-and-structural-hippocampal-damage-in-encephalitis-with-leucine-rich-glioma-inactivated-1-antibodies
#20
Carsten Finke, Harald Prüss, Josephine Heine, Sigrid Reuter, Ute A Kopp, Florian Wegner, Florian Then Bergh, Sebastian Koch, Olav Jansen, Thomas Münte, Günther Deuschl, Klemens Ruprecht, Winfried Stöcker, Klaus-Peter Wandinger, Friedemann Paul, Thorsten Bartsch
Importance: Limbic encephalitis with leucine-rich, glioma-inactivated 1 (LGI1) antibodies is one of the most frequent variants of autoimmune encephalitis with antibodies targeting neuronal surface antigens. However, the neuroimaging pattern and long-term cognitive outcome are not well understood. Objective: To study cognitive outcome and structural magnetic resonance imaging (MRI) alterations in patients with anti-LGI1 encephalitis. Design, Setting, and Participants: A cross-sectional study was conducted at the Departments of Neurology at Charité-Universitätsmedizin Berlin and University Hospital Schleswig-Holstein, Kiel, Germany...
November 21, 2016: JAMA Neurology
keyword
keyword
117989
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"