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Citrulline AND NO

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https://www.readbyqxmd.com/read/28339366/jaccoud-s-arthropathy-in-systemic-lupus-erythematosus-clinical-laboratory-and-ultrasonographic-features
#1
Fulvia Ceccarelli, Laura Massaro, Carlo Perricone, Monica Pendolino, Enrica Cipriano, Simona Truglia, Francesca Miranda, Francesca Romana Spinelli, Cristiano Alessandri, Guido Valesini, Fabrizio Conti
OBJECTIVES: Jaccoud's arthropathy (JA) is a deforming, non-erosive arthritis, occurring in 2-35% of systemic lupus erythematosus (SLE) patients. We aimed to evaluate JA patients in a wide monocentric SLE cohort in terms of clinical, serological and ultrasonographic features. METHODS: Consecutive SLE patients (ACR criteria 1997) were evaluated. The JA index was applied for patients with reducible deformities. Patients with a JA index ≥5 underwent physical examination, blood testing and ultrasound (US) assessment...
March 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28335416/supplementation-with-phycocyanobilin-citrulline-taurine-and-supranutritional-doses-of-folic-acid-and-biotin-potential-for-preventing-or-slowing-the-progression-of-diabetic-complications
#2
Mark F McCarty
Oxidative stress, the resulting uncoupling of endothelial nitric oxide synthase (eNOS), and loss of nitric oxide (NO) bioactivity, are key mediators of the vascular and microvascular complications of diabetes. Much of this oxidative stress arises from up-regulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity. Phycocyanobilin (PhyCB), the light-harvesting chromophore in edible cyanobacteria such as spirulina, is a biliverdin derivative that shares the ability of free bilirubin to inhibit certain isoforms of NADPH oxidase...
March 14, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28325558/l-citrulline-ameliorates-cerebral-blood-flow-during-cortical-spreading-depression-in-rats-involvement-of-nitric-oxide-and-prostanoids-mediated-pathway
#3
Yuki Kurauchi, Koichi Mokudai, Asami Mori, Kenji Sakamoto, Tsutomu Nakahara, Masahiko Morita, Ayako Kamimura, Kunio Ishii
l-Citrulline is a potent precursor of l-arginine, and exerts beneficial effect on cardiovascular system via nitric oxide (NO) production. Migraine is one of the most popular neurovascular disorder, and imbalance of cerebral blood flow (CBF) observed in cortical spreading depression (CSD) contributes to the mechanism of migraine aura. Here, we investigated the effect of l-citrulline on cardiovascular changes to KCl-induced CSD. in rats. Intravenous injection of l-citrulline prevented the decrease in CBF, monitored by laser Doppler flowmetry, without affecting mean arterial pressure and heart rate during CSD...
February 17, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28323949/plasma-arginine-asymmetric-dimethylarginine-ratio-and-incidence-of-cardiovascular-events-a-case-cohort-study
#4
Edward Yu, Miguel Ruiz-Canela, Frank B Hu, Clary B Clish, Dolores Corella, Jordi Salas-Salvadó, Adela Hruby, Montserrat Fitó, Liming Liang, Estefania Toledo, Emilio Ros, Ramón Estruch, Enrique Gómez-Gracia, Jose Lapetra, Fernando Arós, Dora Romaguera, Lluís Serra-Majem, Marta Guasch-Ferré, Dong D Wang, Miguel A Martínez-González
CONTEXT: Arginine, its methylated metabolites and other metabolites related to the urea cycle have been independently associated with cardiovascular risk, but the potential causal meaning of these associations (positive for some metabolites and negative for others) remains elusive due to a lack of studies measuring metabolite changes over time. OBJECTIVE: To examine the association between baseline and 1-year concentrations of urea cycle metabolites and cardiovascular disease in a case-cohort setting...
March 2, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323906/flt-1-gene-polymorphisms-and-protein-expression-profile-in-rheumatoid-arthritis
#5
Agnieszka Paradowska-Gorycka, Anna Sowinska, Andrzej Pawlik, Damian Malinowski, Barbara Stypinska, Ewa Haladyj, Katarzyna Romanowska-Prochnicka, Marzena Olesinska
OBJECTIVES: Inflammation and angiogenesis are a significant element of pathogenesis in rheumatoid arthritis (RA). The FLT-1- triggering factor for production of proinflammatory cytokines-might contributes to inflammation in patients with RA. Association of the FLT-1 polymorphisms with different "angiogenic diseases" suggests that it may be a novel genetic risk factor also for RA. The aim of the study was to identify FLT-1 genetic variants and their possible association with sFLT-1 levels, susceptibility to and severity of RA...
2017: PloS One
https://www.readbyqxmd.com/read/28321492/anti-toxoplasma-antibodies-in-egyptian-rheumatoid-arthritis-patients
#6
Abeer A El-Henawy, Eman Abdel Razek Hafez, Nairmen Nabih, Naglaa M Shalaby, Mervat Mashaly
OBJECTIVE: To assess seroprevalence of anti-Toxoplasma gondii antibodies; both IgG and IgM in Egyptian rheumatoid arthritis (RA) patients versus a non-RA group and to compare anti-Toxoplasma antibodies seroprevalence among RA patients receiving traditional treatment and RA patients treated with biologic drug. METHODS: 60 RA patients and 60 healthy controls were enrolled in the study. Patients were categorized into two groups: one group included 30 patients receiving disease modifying anti-rheumatic drugs (DMARDs), while the other group included 30 patients receiving biologic agent, infliximab, a TNF-α antagonist...
March 20, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28315470/the-nitric-oxide-synthase-2-pathway-is-targeted-by-both-pro-and-anti-inflammatory-treatments-in-the-immature-human-intestine
#7
Emanuela Ferretti, Eric Tremblay, Marie-Pier Thibault, David Grynspan, Karolina M Burghardt, Marcos Bettolli, Corentin Babakissa, Emile Levy, Jean-François Beaulieu
BACKGROUND AND AIM: NO synthase 2 (NOS2) was recently identified as one the most overexpressed genes in intestinal samples of premature infants with necrotizing enterocolitis (NEC). NOS2 is widely implicated in the processes of epithelial cell injury/apoptosis and host immune defense but its specific role in inflammation of the immature human intestinal mucosa remains unclear. Interestingly, factors that prevent NEC such as epidermal growth factor (EGF) attenuate the inflammatory response in the mid-gestation human small intestine using serum-free organ culture while drugs that are associated with NEC occurrence such as the non-steroidal anti-inflammatory drug, indomethacin (INDO), exert multiple detrimental effects on the immature human intestine...
March 14, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28315310/combined-l-citrulline-and-glutathione-administration-prevents-neuronal-cell-death-following-transient-brain-ischemia
#8
Kazuya Matsuo, Yasushi Yabuki, Kohji Fukunaga
We previously reported that oral L-citrulline (L-Cit) administration antagonizes neuronal cell death in hippocampus following transient brain ischemia and that oral glutathione (GSH) administration prevents neuronal death through antioxidant activity. Here, we tested potential synergy of combined L-Cit and GSH administration in protection against neuronal death following cerebral ischemia. One day after a 20-min bilateral common carotid artery occlusion (BCCAO), mice were orally administered L-Cit or GSH alone (at 40 or 100 mg/kg p...
March 14, 2017: Brain Research
https://www.readbyqxmd.com/read/28277345/a-treat-to-target-strategy-preserves-work-capacity-in-a-rheumatoid-arthritis-inception-cohort-treated-with-combination-conventional-dmard-therapy
#9
Mihir D Wechalekar, Stephen Quinn, Susan Lester, Robert G Metcalf, Ella Shanahan, Jennifer G Walker, Malcolm D Smith, Catherine L Hill, E Michael Shanahan, Susanna M Proudman
OBJECTIVES: Quantification of work disability in patients with early rheumatoid arthritis (RA) receiving conventional DMARDs according to a treat-to-target strategy. METHODS: This is a retrospective cohort analysis of RA patients who received combination conventional DMARDs, escalated to achieve DAS28(ESR) remission and completed an annual work and arthritis questionnaire. Random effect mixed modeling was used to assess associations between average hours worked per week (HWPW), and baseline prognostic factors...
April 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28274276/treatment-with-l-citrulline-in-patients-with-post-polio-syndrome-study-protocol-for-a-single-center-randomised-placebo-controlled-double-blind-trial
#10
Simone Schmidt, Vanya Gocheva, Thomas Zumbrunn, Daniela Rubino-Nacht, Ulrike Bonati, Dirk Fischer, Patricia Hafner
BACKGROUND: Post-polio syndrome (PPS) is a condition that affects polio survivors years after recovery from an initial acute infection by the Poliomyelitis virus. Most often, patients who suffered from polio start to experience gradual new weakening in muscles, a gradual decrease in the size of muscles (muscle atrophy) and fatigue years after the acute illness. L-citrulline is known to change muscular metabolism synthesis by raising nitric oxide (NO) levels and increasing protein synthesis...
March 9, 2017: Trials
https://www.readbyqxmd.com/read/28263922/citrulline-and-monocyte-derived-macrophage-reactivity-prior-to-conditioning-predict-acute-graft-verus-host-disease
#11
Thomas Hueso, Valérie Coiteux, Marie Joncquel Chevalier Curt, Julien Labreuche, Thierry Jouault, Ibrahim Yakoub-Agha, David Seguy
During conditioning, intestinal damage induces microbial translocation, which primes macrophage reactivity and leads to donor-derived T cell stimulation. Little is known about the role of intestinal health and macrophage reactivity prior to conditioning regarding the development of acute graft-versus-host disease (aGvHD) in patients undergoing allogeneic hematopoietic cell transplantation (allo-HCT). We assessed (i) citrulline, a surrogate marker of functional enterocyte mass and (ii) circulating monocyte-derived macrophage reactivity, before allo-HCT...
March 2, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28261973/predictors-of-severe-radiographic-progression-in-patients-with-early-rheumatoid-arthritis-prospective-observational-cohort-study
#12
Young Bin Joo, So-Young Bang, Jeong Ah Ryu, Seunghun Lee, Hye-Soon Lee, Sang-Cheol Bae
AIM: To identify predictors of severe radiographic progression in patients with early rheumatoid arthritis (ERA). METHODS: A total of 374 patients with ERA were selected from a Korean prospective cohort. Based on their annual Sharp/Van der Heijde modified score changes (ΔSHS/year), patients were classified into severe and no progression groups. Predictors of severe progression were evaluated using a multivariable logistic regression. RESULTS: After a mean follow-up duration of 4...
March 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28261958/rate-of-positive-autoimmune-markers-in-human-t-lymphotropic-virus-type-1-carriers-a-case-control-study-from-iran
#13
Sanaz Ahmadi Ghezeldasht, Mohammad Reza Hedayati-Moghaddam, Meysam Habibi, Farzad Mollahosseini, Houshang Rafatpanah, Rahele Miri, MohammadReza Hatef Fard, Maryam Sahebari
AIM: Human T lymphotropic virus type 1 (HTLV-1) infection with high prevalence in the north-east of Iran, particularly in Mashhad, can lead to adult T-cell leukemia (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and a variety of autoimmune diseases. The aim of the study was to examine the presence of autoimmune markers in HTLV carries. METHODS: Serum samples were obtained from blood donors in Mashhad, northeastern Iran. One hundred and five HTLV-1 positive (cases) and 104 age- and sex-matched HTLV-1 negative donors (controls) were assessed for presence of serum autoimmune markers by enzyme-linked immunosorbent assay...
March 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28259708/oral-aversion-to-dietary-sugar-ethanol-and-glycerol-correlates-with-alterations-in-specific-hepatic-metabolites-in-a-mouse-model-of-human-citrin-deficiency
#14
Takeyori Saheki, Kanako Inoue, Hiromi Ono, Yuki Fujimoto, Sumie Furuie, Ken-Ichi Yamamura, Eishi Kuroda, Miharu Ushikai, Akihiro Asakawa, Akio Inui, Kazuhiro Eto, Takashi Kadowaki, Mitsuaki Moriyama, David S Sinasac, Takashi Yamamoto, Tatsuhiko Furukawa, Keiko Kobayashi
Mice carrying simultaneous homozygous mutations in the genes encoding citrin, the mitochondrial aspartate-glutamate carrier 2 (AGC2) protein, and mitochondrial glycerol-3-phosphate dehydrogenase (mGPD), are a phenotypically representative model of human citrin (a.k.a., AGC2) deficiency. In this study, we investigated the voluntary oral intake and preference for sucrose, glycerol or ethanol solutions by wild-type, citrin (Ctrn)-knockout (KO), mGPD-KO, and Ctrn/mGPD double-KO mice; all substances that are known or suspected precipitating factors in the pathogenesis of human citrin deficiency...
February 14, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28246933/titer-dependent-effect-of-anti-citrullinated-protein-antibodies-on-systemic-bone-mass-in-rheumatoid-arthritis-patients
#15
Giovanni Orsolini, Cristian Caimmi, Ombretta Viapiana, Luca Idolazzi, Elena Fracassi, Davide Gatti, Giovanni Adami, Maurizio Rossini
Bone loss in rheumatoid arthritis (RA) is a key feature both local and systemic. Anti-citrullinated protein antibodies (ACPA) have recently been found to directly induce differentiation and activation of osteoclasts and therefore contribute to periarticular bone loss. The aim of this study was to analyze the effect of ACPA on systemic bone mineral density (BMD) in patients with established RA. This is a cross-sectional study with a single-center RA population. BMD was measured with Dual X-ray absorptiometry at lumbar and femoral sites...
February 28, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28243799/anti-citrullinated-protein-antibodies-are-associated-with-decreased-bone-mineral-density-baseline-data-from-a-register-of-early-arthritis-patients
#16
Irene Llorente, Leticia Merino, Ana M Ortiz, Eugenio Escolano, Saturnino González-Ortega, Rosario García-Vicuña, Jesús A García-Vadillo, Santos Castañeda, Isidoro González-Álvaro
Since the previous studies showed that anti-citrullinated protein antibodies (ACPA) can induce osteoclasts differentiation and activation, even before arthritis onset, the aim of our study was to determine whether ACPA-positivity is associated with lower bone mineral density (BMD) at baseline visit of a register of early arthritis (EA) patients. The study population comprised 578 patients (80% females) from our EA clinic with a median disease duration, 5.1 months (p25-p75: 6-8); median age, 53.6 years (41.9-66...
February 27, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28215033/anti-mutated-citrullinated-vimentin-antibodies-in-antiphospholipid-syndrome-diagnostic-value-and-relationship-with-clinical-features
#17
Cristiano Alessandri, Nancy Agmon-Levin, Fabrizio Conti, Carlo Perricone, Elena Ortona, Monica Pendolino, Antonella Capozzi, Federica Delunardo, Riccardo Mancini, Simona Truglia, Francesca Romana Spinelli, Fulvia Ceccarelli, Maurizio Sorice, Yehuda Shoenfeld, Guido Valesini
Antiphospholipid antibodies (aPLs) are a heterogeneous group of autoantibodies essential for the diagnosis of antiphospholipid syndrome (APS) but do not predict clinical manifestations or disease progression. Hence, the co-presence of other antibodies may prove useful. Autoimmunity directed toward vimentin and other citrullinated peptides was established in rheumatoid arthritis (RA) and in other autoimmune conditions including systemic lupus erythematosus (SLE). We have previously described the presence of autoantibodies directed against vimentin/cardiolipin complex in patients with antiphospholipid syndrome (APS), but there are no data on the role of citrullinated vimentin in APS...
February 18, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28210620/association-of-ptpn22-haplotypes-1123g-c-1858c-t-with-rheumatoid-arthritis-in-western-mexican-population
#18
Yeniley Ruiz-Noa, Jorge Ramón Padilla-Gutiérrez, Jorge Hernández-Bello, Claudia Azucena Palafox-Sánchez, Yeminia Valle, Edith Oregón-Romero, Ana Laura Pereira-Suárez, Ana Guilaisne Bernard-Medina, José Francisco Muñoz-Valle
Rheumatoid arthritis (RA) is an autoimmune disease characterized by the presence of antibodies against cyclic citrullinated peptide (anti-CCP), a consequence of the breakdown of immune tolerance. The lymphoid tyrosine phosphatase (Lyp) protein has significant effects on maintenance of peripheral immune tolerance. Two polymorphic variants (-1123G>C and +1858C>T) at PTPN22 gene that encodes this protein have been associated with autoimmune disorders and found in strong linkage disequilibrium in Caucasian population...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28209419/a-safety-and-pharmacokinetic-dosing-study-of-glucagon-like-peptide-2-in-infants-with-intestinal-failure
#19
David L Sigalet, Mary E Brindle, Dana Boctor, Bryan Dicken, Viona Lam, Lily Sia Lu, Elaine de Heuvel, Bolette Hartmann, Jens J Holst
BACKGROUND & AIMS: Glucagon-like peptide 2 (GLP-2) analogues are approved for adults with intestinal failure (IF), but no studies have included infants. This study examined the pharmacokinetics (PK), safety, and nutritional effects of GLP-2 in infants with IF. METHODS: With parental consent (Health Canada Protocol:150,979), parenteral nutrition (PN)-dependent infants were treated with 5-20-μg/kg/day GLP-2 for 3days (phase 1), and if tolerated continued for 42days (phase 2)...
January 29, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28207326/micro-rna-146a-but-not-irak1-is-associated-with-rheumatoid-arthritis-in-the-tunisian-population
#20
Hana Ben Hassine, Asma Boumiza, Rim Sghiri, Khadija Baccouche, Imen Boussaid, Ahlem Atig, Zahid Shakoor, Elyes Bouajina, Ramzi Zemni
BACKGROUND: Rheumatoid arthritis (RA) is characterized by the production of an array of proinflammatory cytokines through the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway. Interleukin-1 receptor (IL-1R) and Toll-like receptors contain a common cytoplasmic motif the Toll/IL-1R (TIR) homology domain. This motif is required for NF-κB activation. IL-1R-associated kinase 1 (IRAK1) is a key adapter molecule recruited during the signaling cascade of the TIR...
February 2017: Genetic Testing and Molecular Biomarkers
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