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https://www.readbyqxmd.com/read/28230890/effect-of-testosterone-replacement-therapy-on-vitamin-d-and-fgf-23-levels-in-congenital-hypogonadism
#1
Cem Haymana, Alper Sonmez, Aydogan Aydogdu, Serkan Tapan, Yalcin Basaran, Coskun Meric, Kamil Baskoy, Abdullah Taslipinar, Mahmut Ilker Yilmaz, Omer Azal
INTRODUCTION: Patients with hypogonadism are at increased risk of cardiac and metabolic diseases and osteoporosis. Vitamin D and Fibroblast growth factor-23 (FGF-23) play role in the regulation of bone mineral metabolism and endothelial functions. Low vitamin D levels are reported in hypogonadism, while there is no data about the effect of testosterone replacement therapy (TRT). We investigated the effect of TRT on vitamin D and FGF-23 levels along with endothelial functions and insulin resistance in hypogonadal patients...
February 23, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28225990/visceral-adiposity-index-and-triglyceride-high-density-lipoprotein-cholesterol-ratio-in-hypogonadism
#2
Cem Haymana, Alper Sonmez, Aydogan Aydogdu, Serkan Tapan, Yalcin Basaran, Coskun Meric, Kamil Baskoy, Mustafa Dinc, Mahmut Yazici, Abdullah Taslipinar, Cem Barcin, Mahmut Ilker Yilmaz, Erol Bolu, Omer Azal
Background: Cardiometabolic risk is high in patients with hypogonadism. Visceral adiposity index (VAI) and triglyceride/high-density lipoprotein cholesterol (TG/HDL-C) ratio are the practical markers of atherosclerosis and insulin resistance and independent predictors of cardiaovascular risk. To date, no study has evaluated VAI levels and TG/HDL-C ratio in hypogonadism. Subjects and methods: A total of 112 patients with congenital hypogonadotrophic hypogonadism (CHH) (mean age, 21...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28225497/analysis-of-risk-factors-in-patients-with-leukoaraiosis
#3
Jiaxin Guan, Chaoqi Yan, Qiang Gao, Jun Li, Li Wang, Ming Hong, Xiuhai Zheng, Zhiqiang Song, Mei Li, Meiling Liu, Ying Fan, Lan Ma
To investigate the risk factors for leukoaraiosis (LA) and the correlation between risk factors and LA.The study comprised 92 patients with diagnoses of LA (LA group) and 56 non-LA individuals (control group). Data were collected for the following: age, gender, fasting blood glucose, total cholesterol, triglyceride, high- and low-density lipoprotein cholesterol, uric acid, creatinine, and histories of smoking, hypertension, and diabetes. Levels of serum asymmetric dimethylarginine (ADMA) were detected by enzyme-linked immunosorbent assay...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28218011/asymmetric-dimethylarginine-in-the-assessment-of-febrile-neutropenia-in-hematological-patients
#4
Marika Lappalainen, Sari Hämäläinen, Auni Juutilainen, Irma Koivula, Kari Pulkki, Esa Jantunen
Asymmetric dimethylarginine (ADMA) has been recognized as an independent prognostic factor for sepsis mortality in intensive care units. No data are available on kinetics or prognostic value of ADMA in hematological patients. We evaluated the ability of ADMA to act as a predictor for complicated course of febrile neutropenia, defined as bacteremia and/or septic shock in adult hematological patients receiving intensive chemotherapy. This prospective study included 87 adult hematological patients with febrile neutropenia after an intensive chemotherapy for acute myeloid leukemia (AML) or after an autologous stem cell transplantation (ASCT)...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28216495/-clinical-value-of-adma-in-patients-with-pulmonary-arterial-hypertension-combination-with-congenital-heart-disease
#5
Pengfei Chen, Yiyuan Huang, Zhenfei Fang, Xinqun Hu, Xiangqian Shen, Shenghua Zhou
To study the concentration of the asymmetrical dimethyl-L-arginine (ADMA) in patients with pulmonary arterial hypertension (PAH) commbination with congenital heart disease (CHD) and its clinical value as a biomaker for diagnosis and prognosis.
 Methods: A total of 100 patients with CHD and 25 healthy adult subjects were recruited. CHD patients were divided into three groups: normal pulmonary arterial pressure group (group A, n=25), mild-to-moderate PAH group (group B, n=25), severe PAH group (group C, n=50)...
January 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28216392/nitrergic-cardiovascular-regulation-in-the-african-lungfish-protopterus-aethiopicus
#6
Renato Filogonio, William Joyce, Tobias Wang
As a ubiquitous signaling molecule, nitric oxide (NO) exerts various important effects on the cardiovascular system and is involved in the regulation of vascular tone and myocardial metabolism in vertebrates. Lungfishes are closely related to tetrapods and provide an interesting possibility to understand the transition from water to land. Lungfishes are endowed with both systemic and pulmonary circulations, and their incompletely divided ventricle allows for blood to bypass either circuit. Lungfishes inhabit ephemeral waterbodies that may enforce prolonged aestivation during drought, throughout which nitric oxide synthase (NOS) expression is upregulated...
February 16, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28215178/oxidative-stress-and-cardiovascular-aging-interaction-between-nrf-2-and-adma
#7
Nandini Nair, Enrique Gongora
BACKGROUND The concept of antioxidant therapies assumes high importance as oxidative stress is associated with cardiovascular aging via endothelial dysfunction. This review focusses on exploring the interaction between nrf-2 and ADMA in influencing the nitric oxide pathway and cardiovascular function. OBJECTIVE A systematic review of literature from 1990 to 2016 was conducted using Pubmed and Google Scholar. The literature suggests a strong influence of nrf-2 activation on up regulation of DDAH I which degrades ADMA , the endogenous inhibitor of nitric oxide synthase ...
February 16, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/28207514/arginine-methylation-dysfunction-increased-risk-of-acute-coronary-syndrome-in-coronary-artery-disease-population-a-case-control-study
#8
Shengyu Zhang, Shuyang Zhang, Hongyun Wang, Wei Wu, Yicong Ye
The plasma levels of asymmetric dimethylarginine (ADMA) had been proved to be an independent cardiovascular risk factor. Few studies involved the entire arginine methylation dysfunction. This study was designed to investigate whether arginine methylation dysfunction is associated with acute coronary syndrome risk in coronary artery disease population.In total 298 patients undergoing coronary angiography because of chest pain with the diagnosis of stable angina pectoris or acute coronary syndrome from February 2013 to June 2014 were included...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28183353/endothelial-injury-in-rheumatoid-arthritis-a-crosstalk-between-dimethylarginines-and-systemic-inflammation
#9
Theodoros Dimitroulas, James Hodson, Aamer Sandoo, Jacqueline Smith, George D Kitas
BACKGROUND: Symmetric (SDMA) and asymmetric (ADMA) dimethylarginines have emerged as novel biomarkers of cardiovascular disease (CVD) in several disease settings associated with atherosclerosis. Rheumatoid arthritis (RA) is a chronic systemic inflammatory disease characterized by high CVD mortality and morbidity. ADMA and SDMA levels are abnormal in RA patients, but their correlation with assessments of endothelial function and structure remains unknown. We aimed to investigate whether SDMA and ADMA are associated with carotid intima media thickness (cIMT) and arterial stiffness as well as non-invasive assessments of in vivo micro- and macrovascular endothelial function in RA patients with high systemic inflammatory load...
February 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28179606/carotid-plaque-score-and-risk-of-cardiovascular-mortality-in-the-oldest-old-results-from-the-tooth-study
#10
Takumi Hirata, Yasumichi Arai, Michiyo Takayama, Yukiko Abe, Kiyoshi Ohkuma, Toru Takebayashi
AIM: Accumulating evidence suggests that predictability of traditional cardiovascular risk factors declines with advancing age. We investigated whether carotid plaque scores (CPSs) were associated with cardiovascular disease (CVD) death in the oldest old, and whether asymmetrical dimethylarginine (ADMA), a marker of endothelial dysfunction, moderated the association between the CPS and CVD death. METHODS: We conducted a prospective cohort study of Japanese subjects aged ≥85 years without CVD at baseline...
February 8, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28178159/adma-predicts-major-adverse-renal-events-in-patients-with-mild-renal-impairment-and-or-diabetes-mellitus-undergoing-coronary-angiography
#11
Fabian Heunisch, Lyubov Chaykovska, Gina von Einem, Markus Alter, Thomas Dschietzig, Axel Kretschmer, Karl-Heinz Kellner, Berthold Hocher
Asymmetric dimethylarginine (ADMA) is a competitive inhibitor of the nitric oxide (NO)-synthase and a biomarker of endothelial dysfunction (ED). ED plays an important role in the pathogenesis of contrast-induced nephropathy (CIN). The aim of our study was to evaluate serum ADMA concentration as a biomarker of an acute renal damage during the follow-up of 90 days after contrast medium (CM) application.Blood samples were obtained from 330 consecutive patients with diabetes mellitus or mild renal impairment immediately before, 24 and 48 hours after the CM application for coronary angiography...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28167521/ddar-pa1196-regulates-expression-of-dimethylarginine-dimethylaminohydrolase-for-the-metabolism-of-methylarginines-in-pseudomonas-aeruginosa-pao1
#12
Benjamin R Lundgren, Frank J Bailey, Gabriella Moley, Christopher T Nomura
: Dimethylarginine dimethylaminohydrolases or DDAHs catalyze the hydrolysis of methylarginines to yield L-citrulline and methylamines as products. DDAHs and their central roles in methylarginine metabolism have been characterized for eukaryotic cells. While DDAHs are known to exist in some bacteria, including Streptomyces coelicolor and Pseudomonas aeruginosa, the physiological importance and genetic regulation of bacterial DDAHs remain poorly understood. To provide some insight into bacterial methylarginine metabolism, this study focused on identifying the key elements or factors regulating DDAH expression in P...
February 6, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28163022/preservation-of-vascular-ddah-activity-contributes-to-the-protection-of-captopril-against-endothelial-dysfunction-in-hyperlipidemic-rabbits
#13
Yuan Lin, Mei Feng, Chang-Wu Lu, Yan-Ping Lei, Zhi-Min He, Yan Xiong
Endothelial dysfunction plays a pivotal role in the pathogenesis of atherosclerosis. Endogenous inhibitor of nitric oxide synthase (NOS) asymmetric dimethylarginine (ADMA) has been recognized as an independent risk factor of endothelial dysfunction and the biomarker of atherosclerosis. This study was to investigate whether endogenous ADMA and its metabolic enzyme dimethylarginine dimethylaminohydrolase (DDAH) were involved in mechanisms of captopril protection against endothelial dysfunction in high fat diet feeding rabbits...
February 2, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28161799/comprehensive-analysis-of-the-l-arginine-l-homoarginine-nitric-oxide-pathway-in-preterm-neonates-potential-roles-for-homoarginine-and-asymmetric-dimethylarginine-in-foetal-growth
#14
Anna Buck, Arslan Arinc Kayacelebi, Kristine Chobanyan-Jürgens, Sabine Illsinger, Bettina Bohnhorst, Bibiana Beckmann, Erik Hanff, Anibh M Das, Dimitrios Tsikas, Thomas Lücke
L-Arginine (Arg) and L-homoarginine (hArg) are precursors of nitric oxide (NO), a signalling molecule with multiple important roles in human organism. In the circulation of adults, high concentrations of asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) and low concentrations of hArg emerged as cardiovascular risk factors. Yet, the importance of the Arg/hArg/NO pathway, especially of hArg and ADMA, in preterm neonates is little understood. We comprehensively investigated the Arg/hArg/NO pathway in 106 healthy preterm infants (51 boys, 55 girls) aged between 23 + 6 and 36 + 1 gestational weeks...
February 4, 2017: Amino Acids
https://www.readbyqxmd.com/read/28153724/pharmacological-assessment-of-ibuprofen-arginate-on-platelet-aggregation-and-colon-cancer-cell-killing
#15
B Ahmetaj-Shala, A Tesfai, C Constantinou, R Leszczynski, M V Chan, H Gashaw, G Galaris, S Mazi, T D Warner, N S Kirkby, J A Mitchell
Nonsteroidal anti-inflammatory drugs (NSAIDs), including ibuprofen, are amongst the most commonly used medications and produce their anti-inflammatory and analgesic benefits by blocking cyclooxygenase (COX)-2. These drugs also have the potential to prevent and treat cancer and some members of the class including ibuprofen can produce anti-platelet effects. Despite their utility, all NSAIDs are associated with increased risk of cardiovascular side effects which our recent work suggests could be mediated by increased levels of the endogenous NO synthase (NOS) inhibitor asymmetric dimethylarginine (ADMA) leading to reduced endothelial NOS activity and associated endothelial cell dysfunction...
January 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28153005/effects-of-an-l-arginine-based-multi-ingredient-product-on-endothelial-function-in-subjects-with-mild-to-moderate-hypertension-and-hyperhomocysteinemia-a-randomized-double-blind-placebo-controlled-cross-over-trial
#16
RANDOMIZED CONTROLLED TRIAL
Claudia A Reule, Birgit Goyvaerts, Christiane Schoen
BACKGROUND: Nutrition plays an important role in prevention and management of cardiovascular diseases (CVD) in early stages. Recent research demonstrated beneficial effects of various nutritional ingredients on vascular health. The aim of the current study was to evaluate the effects of an L-arginine-based multi ingredient product (AbMIP) on vascular function. METHODS: Twenty-five male and female subjects, aged between 45 and 65 years with elevated blood pressure and hyperhomocysteinemia were included in this cross-over trial...
February 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28147348/the-association-between-biomarker-profiles-etiology-of-chronic-kidney-disease-and-mortality
#17
David Langsford, Mila Tang, Hicham I Cheikh Hassan, Ognjenka Djurdjev, Manish M Sood, Adeera Levin
BACKGROUND: Prognosis in chronic kidney disease (CKD) for adverse outcomes differs substantially based on the etiology of CKD. We examined whether the biomarker profile differed based on CKD etiology and whether they were associated with mortality. METHODS: Prospective observational study of 1,157 patients, 663 with diabetic kidney disease (DKD), 273 with glomerulonephritis (GN), and 221 with cystic/interstitial disease (polycystic kidney disease, pyelonephritis or chronic tubulointerstitial nephritis [PCK/TIN]) were identified in the Canadian Study of Prediction of Dialysis, Death and Interim Cardiovascular events over Time cohort...
February 2, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28145161/repetitive-ischemia-increases-myocardial-dimethylarginine-dimethylaminohydrolase-1-expression
#18
Ping Zhang, John T Fassett, Guangshuo Zhu, Jingxin Li, Xinli Hu, Xin Xu, Yingjie Chen, Robert J Bache
Pharmacologic inhibition of nitric oxide production inhibits growth of coronary collateral vessels. Dimethylarginine dimethylaminohydrolase 1 (DDAH1) is the major enzyme that degrades asymmetric dimethylarginine (ADMA), a potent inhibitor of nitric oxide synthase. Here we examined regulation of the ADMA-DDAH1 pathway in a canine model of recurrent myocardial ischemia during the time when coronary collateral growth is known to occur. Under basal conditions, DDAH1 expression was non-uniform across the left ventricular (LV) wall, with expression strongest in the subepicardium...
January 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28139409/investigation-of-asymmetric-and-symmetric-dimethylarginine-levels-after-iloprost-treatment-in-patients-with-buerger-s-disease
#19
S Senol, A Senol
OBJECTIVE: The aim of this study was to compare the levels of acetyl-dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and the l-arginine/ADMA ratio before and after iloprost treatment in patients with Buerger's disease. METHODS: Between January 2011 and December 2015, data from 44 patients (36 males, 8 females, mean age 48.7 ± 18.1 years) with the diagnosis of Fontaine Stage III-IV Buerger's disease were included. Iloprost infusion was administered intravenously through the forearm veins for 7 days at a dose of 0...
January 28, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28128745/endothelial-dysfunction-microvascular-damage-and-ischemic-peripheral-vasculopathy-in-systemic-sclerosis
#20
Ivone Fernandes Santos da Silva, Andreia Teixeira, José Oliveira, Rui Almeida, Carlos Vasconcelos
OBJECTIVE: To evaluate endothelial dysfunction and microvascular damage in secondary Raynaud Phenomenon (SRP) and Systemic sclerosis (SSc)-associated patients as possible predictors of ischemic fingertip digital ulcers (DU) in a 3-year clinical follow-up. METHODS: Flow-mediated dilatation (FMD), nailfold videocapillaroscopy (NVC), endothelin-1 (ET-1) and asymmetric dimethylarginine (ADMA) were analysed in a 3-year observational cohort study of 77 SRP patients with systemic sclerosis...
January 27, 2017: Clinical Hemorheology and Microcirculation
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