keyword
MENU ▼
Read by QxMD icon Read
search

Homocitrullination or carbamylation

keyword
https://www.readbyqxmd.com/read/29242008/immune-responses-to-peptides-containing-homocitrulline-or-citrulline-in-the-dr4-transgenic-mouse-model-of-rheumatoid-arthritis
#1
Patrick Lac, Sheri Saunders, Elena Tutunea-Fatan, Lillian Barra, David A Bell, Ewa Cairns
Antibodies to proteins/peptides containing citrulline are hallmarks of Rheumatoid Arthritis (RA). These antibodies are strongly associated with the expression of the Shared Epitope (SE). RA patients also generate antibodies to homocitrulline-containing proteins/peptides (also referred to as anti-carbamylated protein antibodies (Anti-CarP)). This study was undertaken to investigate the relationship between homocitrulline and citrulline immune responses using an established mouse model of RA: DR4-transgenic (DR4tg) mice that express the human SE...
December 11, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29221866/a-capillary-zone-electrophoresis-method-for-detection-of-apolipoprotein-c-iii-glycoforms-and-other-related-artifactually-modified-species
#2
Coralie Ruel, Marco Morani, Arnaud Bruneel, Christophe Junot, Myriam Taverna, François Fenaille, Thuy Tran
ApolipoproteinC-III (ApoC-III) is a human plasma glycoprotein whose O-glycosylation can be altered as a result of congenital disorders of glycosylation (CDG). ApoC-III exhibits three major glycoforms whose relative quantification is of utmost importance for the diagnosis of CDG patients. Considering the very close structures of these glycoforms and their tendency to adsorb on the capillary, a thorough optimization of capillary electrophoresis (CE) parameters including preconditioning and in-between rinsing procedures was required to efficiently separate all the ApoC-III glycoforms...
December 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29209135/first-case-of-cross-auxiliary-double-domino-donor-liver-transplantation
#3
Zhi-Jun Zhu, Lin Wei, Wei Qu, Li-Ying Sun, Ying Liu, Zhi-Gui Zeng, Liang Zhang, En-Hui He, Hai-Ming Zhang, Ji-Dong Jia, Zhong-Tao Zhang
We report a case of double domino liver transplantation in a 32-year-old woman who was diagnosed with familial amyloid polyneuropathy (FAP) and liver dysfunction. A two-stage surgical plan was designed, and one domino graft was implanted during each stage. During the first stage, an auxiliary domino liver transplantation was conducted using a domino graft from a 4-year-old female child with Wilson's disease. After removing the right lobe of the FAP patient's liver, the graft was rotated 90 degrees counterclockwise and placed along the right side of the inferior vena cava (IVC)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29204673/the-role-of-autoantibodies-in-bone-metabolism-and-bone-loss
#4
REVIEW
Barbara Hauser, Ulrike Harre
Many autoimmune diseases are associated with deranged bone metabolism. The resulting localized or systemic bone loss can compromise the quality of life of patients by causing local bone deformities or fragility fractures. There is emerging evidence that antibodies have a direct impact on key players of bone homeostasis, in particular osteoclasts. Clinical and pre-clinical studies provide insight into the function of autoantibodies related to Rheumatoid Arthritis (rheumatoid factor, anti-citrullinated protein antibodies, and anti-carbamylated protein antibodies) and their inflammation-independent interaction with bone cells...
December 4, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29204430/carbamylation-citrullination-of-igg-fc-in-bronchiectasis-established-ra-with-bronchiectasis-and-ra-smokers-a-potential-risk-factor-for-disease
#5
David Hutchinson, Alexander Clarke, Kate Heesom, Daniel Murphy, Paul Eggleton
Bronchiectasis (BR) and smoking are risk factors for rheumatoid arthritis (RA) development. The mechanisms by which smoking and BR trigger RA are unknown, but are associated with concurrent rheumatoid factor (RF) and anti-cyclic citrullinated peptide antibody (anti-CCP) positivity. Anti-carbamylated protein antibodies (anti-CarP) have also been observed in BR patients and can be induced by smoking. Given that RF only has one antigen, immunoglobulin G (IgG) we have suggested that post-translational modifications to the Fc region of the heavy chain of IgG (IgGH) are a potential explanation for the clustering of the RA-associated autoantibodies in RA...
July 2017: ERJ Open Research
https://www.readbyqxmd.com/read/29203664/structural-insights-into-how-gtp-dependent-conformational-changes-in-a-metallochaperone-ureg-facilitate-urease-maturation
#6
Man Hon Yuen, Yu Hang Fong, Yap Shing Nim, Pak Ho Lau, Kam-Bo Wong
The ability of metallochaperones to allosterically regulate the binding/release of metal ions and to switch protein-binding partners along the metal delivery pathway is essential to the metallation of the metalloenzymes. Urease, catalyzing the hydrolysis of urea into ammonia and carbon dioxide, contains two nickel ions bound by a carbamylated lysine in its active site. Delivery of nickel ions for urease maturation is dependent on GTP hydrolysis and is assisted by four urease accessory proteins UreE, UreF, UreG, and UreH(UreD)...
December 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29203292/pitfalls-in-the-detection-of-citrullination-and-carbamylation
#7
REVIEW
M K Verheul, P A van Veelen, M A M van Delft, A de Ru, G M C Janssen, T Rispens, R E M Toes, L A Trouw
Carbamylation and citrullination are both post-translational modifications against which (auto)antibodies can be detected in sera of rheumatoid arthritis (RA) patients. Carbamylation is the chemical modification of a lysine into a homocitrulline, whereas citrullination is an enzymatic conversion of an arginine into a citrulline. It is difficult to distinguish between the two resulting amino acids due to similarities in structure. However, differentiation between citrulline and homocitrulline is important to understand the antigens that induce antibody production and to determine which modified antigens are present in target tissues...
December 1, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29196382/relatedness-of-antibodies-to-peptides-containing-homocitrulline-or-citrulline-in-patients-with-rheumatoid-arthritis
#8
Patrick Lac, Maud Racapé, Lillian Barra, David A Bell, Ewa Cairns
OBJECTIVE: Antibodies that target citrullinated protein/peptide (ACPA) and homocitrullinated/carbamylated protein/peptide (AHCPA) are associated with rheumatoid arthritis (RA). The relationship between ACPA and AHCPA remains unclear. We examined the expression and cross-reactivity of these antibodies using citrulline- and homocitrulline-containing synthetic peptides, CitJED and HomoCitJED, respectively, which have equal numbers of citrulline or homocitrulline residues on the same peptide backbone...
December 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29130797/dose-finding-study-of-carbamylated-monomeric-allergoid-tablets-in-grass-allergic-rhinoconjunctivitis-patients
#9
Ralph Mösges, Christina Rohdenburg, Andrea Eichel, Gregor Zadoyan, Elena-Manja Kasche, Kija Shah-Hosseini, Walter Lehmacher, Petra Schmalz, Enrico Compalati
AIM: To determine the optimal effective and safe dose of sublingual immunotherapy tablets containing carbamylated monomeric allergoids in patients with grass pollen-induced allergic rhinoconjunctivitis. METHODS: In this prospective, randomized, double-blind, active-controlled, multicenter, Phase II study, four different daily doses were applied preseasonally for 12 weeks. RESULTS: Of 158 randomized adults, 155 subjects (safety population) received 300 units of allergy (UA)/day (n = 36), 600 UA/day (n = 43), 1000 UA/day (n = 39), or 2000 UA/day (n = 37)...
November 2017: Immunotherapy
https://www.readbyqxmd.com/read/29113807/cyanate-improves-insulin-sensitivity-and-hepatic-steatosis-in-normal-and-high-fat-fed-mice-anorexic-and-antioxidative-effects
#10
Seong Sik Kang, Kyo-Cheol Mun, Ji Hae Seo, Misun Choe, Eunyoung Ha
Obesity is an important contributing factor to progression of chronic kidney disease. Cyanate, known as uremic toxin, is an electrophile produced spontaneously from urea or by myeloperoxidase-catalyzed oxidation of thiocyanate. Herein, we explored metabolic effects of cyanate in normal chow diet (NCD)- and high fat diet (HFD)-fed mice. Mice were treated with cyanate (1 mg/mL in drinking water) and fed NCD or HFD. Peritoneal glucose tolerance test (PGTT) and insulin tolerance test (ITT) were performed. Blood urea nitrogen (BUN) and creatinine concentrations were determined...
November 4, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29107336/citrulline-in-health-and-disease-review-on-human-studies
#11
REVIEW
Cinzia Papadia, Sylwia Osowska, Luc Cynober, Alastair Forbes
The amino acid L-citrulline (CIT) is safely used from the neonatal period onwards in those with urea cycle defects and carbamyl phosphate synthetase or ornithine transcarbamylase deficiencies, but several lines of enquiry indicate that it might have a much wider therapeutic role. When protein intake is low and there is a catabolic state, endogenous arginine (ARG) synthesis cannot fully be met and its supplementation can prove challenging, particularly in patients with critical and multisystem illness. Supplementary CIT could constitute a safer but still focused means of delivering ARG to endothelial and immune cells as CIT is efficiently recycled into these cells and as kidneys can convert CIT into ARG...
October 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29100671/-nettling-the-host-breaking-of-tolerance-in-chronic-inflammation-and-chronic-infection
#12
REVIEW
Sladjana Skopelja-Gardner, Jonathan D Jones, William F C Rigby
How and why we break tolerance to self-proteins still remains a largely unanswered question. Neutrophils have been identified as a rich source of autoantigens in a wide array of autoimmune diseases that arise as a consequence of different environmental and genetic factors, e.g. rheumatoid arthritis (RA), lupus, vasculitis, cystic fibrosis (CF) etc. Specifically, neutrophil extracellular trap (NET) formation has been identified as a link between innate and adaptive immune responses in autoimmunity. Autoantigens including neutrophil granular proteins (targeted by anti-neutrophil cytoplasmic antibodies, ANCA) as well as post-translationally modified proteins, i...
October 31, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29096669/anti-carbamylated-protein-antibodies-precede-disease-onset-in-monkeys-with-collagen-induced-arthritis
#13
Marije K Verheul, Michel P M Vierboom, Bert A 't Hart, Rene E M Toes, Leendert A Trouw
BACKGROUND: Rheumatoid factor (RF), anti-citrullinated protein antibodies (ACPA) and anti-carbamylated protein (anti-CarP) antibodies are rheumatoid arthritis (RA)-associated autoantibodies. Besides their presence in human serum, anti-CarP antibodies have also been described in rodent models of arthritis, while ACPA are not consistently detectable. Data on these RA-associated autoantibodies in primates are not available. Therefore, we investigated the presence of RF, anti-CarP antibodies and ACPA in rhesus monkeys before and after collagen-induced arthritis immunizations...
November 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29044530/gingival-tissue-an-extrasynovial-source-of-malondialdehyde-acetaldehyde-adducts-citrullinated-and-carbamylated-proteins
#14
R Bright, G M Thiele, J Manavis, T R Mikuls, J B Payne, P M Bartold
BACKGROUND AND OBJECTIVE: Postranslational modification of proteins can lead to the production of autoantibodies and loss of immune tolerance. This process has been hypothesised to be a critical factor in the pathogenesis of rheumatoid arthritis. The objective of this study was to demonstrate that inflamed human gingival tissue provides an extrasynovial source of malondialdehyde-acetaldehyde adducts, citrullinated and carbamylated proteins all of which are considered to be linked to the development of rheumatoid arthritis...
October 17, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29035051/integrating-carbamylation-and-ultraviolet-photodissociation-mass-spectrometry-for-middle-down-proteomics
#15
James D Sanders, Sylvester M Greer, Jennifer S Brodbelt
The most popular bottom-up proteomics workflow uses trypsin to enzymatically cleave proteins C-terminal to lysine and arginine residues prior to LCMS/MS analysis of the resulting peptides. The high frequency of these residues generates short peptides, some of which are too small or uninformative for optimal analysis and which potentially contribute to gaps in sequence coverage of proteins. Analysis of larger peptides, termed "middle-down", has the potential to span greater sections of protein sequences if the larger peptides are adequately characterized based on their fragmentation patterns...
November 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29030163/metabolites-related-to-renal-function-immune-activation-and-carbamylation-are-associated-with-muscle-composition-in-older-adults
#16
Michael S Lustgarten, Roger A Fielding
Reduced skeletal muscle density in older adults is associated with insulin resistance, decreased physical function, and an increased all-cause mortality risk. To elucidate mechanisms that may underlie the maintenance of skeletal muscle density, we conducted a secondary analysis of previously published muscle composition and serum metabolomic data in 73 older adults (average age, 78y). Multivariable-adjusted linear regression was used to examine associations between 321 metabolites with muscle composition, defined as the ratio between normal density (NDM) with low density (LDM) thigh muscle cross sectional area (NDM/LDM)...
October 10, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29029341/an-increased-concentration-of-receptor-activator-of-nuclear-factor-kappa-b-ligand-pre-dates-the-onset-of-rheumatoid-arthritis
#17
Linda Johansson, Lisbeth Ärlestig, Heidi Kokkonen, Mikael Brink, Solbritt Rantapää-Dahlqvist
Objectives: RANK ligand (RANKL) is involved in destruction and osteoporosis in RA. In this study, the relationships between RANKL and ACPA, anti-carbamylated protein antibodies (anti-CarP), cytokines and chemokines were analysed in individuals before the onset of RA symptoms, and their associations with radiological findings at disease onset were assessed. Methods: This was a case-control study performed within the Medical Biobank of Northern Sweden that included 470 pre-symptomatic individuals [334 women and 136 men; mean (s...
December 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28992314/nutritional-therapy-reduces-protein-carbamylation-through-urea-lowering-in-chronic-kidney-disease
#18
Biagio R Di Iorio, Stefania Marzocco, Antonio Bellasi, Emanuele De Simone, Fabrizio Dal Piaz, Maria Teresa Rocchetti, Carmela Cosola, Lucia Di Micco, Loreto Gesualdo
Background: Protein carbamylation is one of the non-enzymatic reactions involved in protein molecular ageing. We sought to investigate the relationship between urea levels and protein carbamylation, and whether a Mediterranean diet (MD) and a very low protein diet (VLPD) reduce protein carbamylation through reduction in urea levels in patients with chronic kidney disease (CKD). Methods: This is a prospective, randomized, crossover controlled trial that investigated 60 patients with CKD grades 3B-4 (46 males, mean age of 67 years)...
July 11, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28985181/binding-of-bromocresol-green-and-bromocresol-purple-to-albumin-in-hemodialysis-patients
#19
Sigurd Delanghe, Wim Van Biesen, Nadeige Van de Velde, Sunny Eloot, Anneleen Pletinck, Eva Schepers, Griet Glorieux, Joris R Delanghe, Marijn M Speeckaert
BACKGROUND: Colorimetric albumin assays based on binding to bromocresol purple (BCP) and bromocresol green (BCG) yield different results in chronic kidney disease. Altered dye binding of carbamylated albumin has been suggested as a cause. In the present study, a detailed analysis was carried out in which uremic toxins, acute phase proteins and Kt/V, a parameter describing hemodialysis efficiency, were compared with colorimetrically assayed (BCP and BCG) serum albumin. METHODS: Albumin was assayed using immunonephelometry on a BN II nephelometer and colorimetrically based on, respectively, BCP and BCG on a Modular P analyzer...
October 6, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28971980/metabolomic-alterations-associated-with-cause-of-ckd
#20
Morgan E Grams, Adrienne Tin, Casey M Rebholz, Tariq Shafi, Anna Köttgen, Ronald D Perrone, Mark J Sarnak, Lesley A Inker, Andrew S Levey, Josef Coresh
BACKGROUND AND OBJECTIVES: Causes of CKD differ in prognosis and treatment. Metabolomic indicators of CKD cause may provide clues regarding the different physiologic processes underlying CKD development and progression. DESIGN, SETTING, PARTICIPANTS & MEASUREMENTS: Metabolites were quantified from serum samples of participants in the Modification of Diet in Renal Disease (MDRD) Study, a randomized controlled trial of dietary protein restriction and BP control, using untargeted reverse phase ultraperformance liquid chromatography tandem mass spectrometry quantification...
November 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
keyword
keyword
31559
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"