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https://www.readbyqxmd.com/read/28096437/phase-angle-predicts-arterial-stiffness-and-vascular-calcification-in-peritoneal-dialysis-patients
#1
Margarida Sarmento-Dias, Carla Santos-Araújo, Rui Poínhos, Bruno Oliveira, Maria Sousa, Liliana S Silva, Isabel S Silva, Flora Correia, Manuel Pestana
♦ Objectives: Fluid overload (FO) is frequently present in peritoneal dialysis (PD) patients and is associated with markers of malnutrition, inflammation, and atherosclerosis/calcification (MIAC) syndrome. We examined the relationships in stable PD patients between phase angle (PhA) and the spectrum of uremic vasculopathy including vascular calcification and arterial stiffness and between PhA and changes in serum fetuin-A levels. ♦ Methods: Sixty-one stable adult PD patients were evaluated in a cross-sectional study (ST1)...
January 17, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28056981/arterial-stiffness-endothelial-and-cognitive-function-in-subjects-with-type-2-diabetes-in-accordance-with-absence-or-presence-of-diabetic-foot-syndrome
#2
Antonino Tuttolomondo, Alessandra Casuccio, Giovanni Guercio, Carlo Maida, Alessandro Del Cuore, Domenico Di Raimondo, Irene Simonetta, Danilo Di Bona, Rosaria Pecoraro, Vittoriano Della Corte, Eliana Gulotta, Gaspare Gulotta, Antonio Pinto
BACKGROUND: Endothelial dysfunction is an early marker of cardiovascular disease so endothelial and arterial stiffness indexes are good indicators of vascular health. We aimed to assess whether the presence of diabetic foot is associated with arterial stiffness and endothelial function impairment. METHODS: We studied 50 subjects with type 2 diabetes mellitus and diabetic foot syndrome (DFS) compared to 50 diabetic subjects without diabetic foot, and 53 patients without diabetes mellitus, by means of the mini mental state examination (MMSE) administered to evaluate cognitive performance...
January 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28054454/epoetin-beta-pegol-ameliorates-flow-mediated-dilation-with-improving-enos-coupling-state-in-non-obese-diabetic-rats
#3
Kenichi Serizawa, Kenji Yogo, Yoshihito Tashiro, Ryohei Kawasaki, Koichi Endo, Yasushi Shimonaka, Michinori Hirata
BACKGROUND/AIMS: Patients with diabetic nephropathy have a high cardiovascular mortality. Epoetin beta pegol (continuous erythropoietin receptor activator, C.E.R.A.) is a drug for the treatment of renal anemia. In this study, we investigated the effect of C.E.R.A. on vascular endothelial function as evaluated by flow-mediated dilation (FMD) and the relationship between hematopoiesis and FMD in diabetic nephropathy rats. METHODS: Male Spontaneously Diabetic Torii rats (SDT, 22 weeks old) were used...
January 5, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28042842/novel-2-3-dihydro-1h-pyrrolo-3-2-1-ij-quinazolin-1-ones-synthesis-and-biological-evaluation
#4
Malose J Mphahlele, Tebogo A Khoza, Peaceful Mabeta
Herein we describe the synthesis and evaluation of a series of novel 2,3-dihydro-1H-pyrrolo[3,2,1-ij]quinazolin-1-ones for in vitro cytotoxicity against three human cancer cell lines as well as for potential antimalarial activity against the chloroquine-sensitive strain 3D7 of Plasmodium falciparum. The title compounds were prepared via PdCl₂-mediated endo-dig cyclization of 2-aryl-8-(arylethynyl)-6-bromo-2,3-dihydroquinazolin-4(1H)-ones. The latter were prepared, in turn, via initial Sonogashira cross-coupling of 2-amino-5-bromo-3-iodobenzamide with aryl acetylenes followed by boric acid-mediated cyclocondensation of the intermediate 2-amino-3-(arylethynyl)-5-bromobenzamides with benzaldehyde derivatives...
December 30, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27995008/desflurane-inhalation-before-ischemia-increases-ischemia-reperfusion-induced-vascular-leakage-in-isolated-rabbit-lungs
#5
Yoshiaki Oshima, Seiji Sakamoto, Kazumasa Yamasaki, Shinsuke Mochida, Kazumi Funaki, Naoki Moriyama, Akihiro Otsuki, Ryo Endo, Masato Nakasone, Shunsaku Takahashi, Tomomi Harada, Yukari Minami, Yoshimi Inagaki
BACKGROUND: Isoflurane and sevoflurane protect lungs with ischemia-reperfusion (IR) injury. We examined the influence of desflurane on IR lung injury using isolated rabbit lungs perfused with a physiological salt solution. METHODS: The isolated lungs were divided into three groups: IR, desflurane-treated ischemia-reperfusion (DES-IR), and ventilation/perfusion-continued control (Cont) groups (n = 6 per group). In the DES-IR group, inhalation of desflurane at 1 minimum alveolar concentration (MAC) was conducted in a stable 30-min phase...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27978511/effects-of-daprodustat-a-novel-hypoxia-inducible-factor-prolyl-hydroxylase-inhibitor-on-anemia-management-in-japanese-hemodialysis-subjects
#6
Tadao Akizawa, Yoshiharu Tsubakihara, Masaomi Nangaku, Yukihiro Endo, Hiromu Nakajima, Tomoko Kohno, Yukiko Imai, Natsumi Kawase, Katsutoshi Hara, John Lepore, Alexander Cobitz
BACKGROUND: Daprodustat (GSK1278863) is an oral hypoxia-inducible factor prolyl hydroxylase inhibitor being developed for treatment of anemia associated with chronic kidney disease (CKD). The effect of daprodustat in Japanese CKD patients with anemia has not been previously investigated. METHODS: We evaluated the relationship between daprodustat dose and hemoglobin response in Japanese patients on hemodialysis (HD) with anemia in a 4-week, phase II, double-blind, placebo-controlled study...
December 16, 2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27927086/long-term-follow-up-of-endo-vascular-recanalization-of-chronic-inferior-vena-cava-occlusion-secondary-to-inferior-vena-cava-filters
#7
Sasan Partovi, Sanjeeva P Kalva, T Gregory Walker, Sabir M Taj, Suvranu Ganguli
BACKGROUND: The long term efficacy of endovascular recanalization for chronic iliocaval occlusion secondary to inferior vena cava (IVC) filters is unknown. The purpose of this study was to evaluate the effectiveness of endovascular recanalization and stent placement across the filter in patients with filter-associated chronic iliocaval occlusion. PATIENTS AND METHODS: Seven patients (mean age 56 ± 15 yrs; seven males) with symptomatic chronic iliocaval occlusion and occluded IVC filter were included...
December 8, 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27912199/right-ventricular-dyssynchrony-predicts-clinical-outcomes-in-patients-with-pulmonary-hypertension
#8
Mitsushige Murata, Toshimitsu Tsugu, Takashi Kawakami, Masaharu Kataoka, Yugo Minakata, Jin Endo, Hikaru Tsuruta, Yuji Itabashi, Yuichiro Maekawa, Keiichi Fukuda
BACKGROUND: RV dyssynchrony has been described in patients with pulmonary hypertension (PH) and is an independent predictor of clinical worsening; however, the optimal method for measuring RV dyssynchrony has not been fully established. This study aimed to investigate whether RV dyssynchrony is correlated with hemodynamics and prognosis in PH patients and to identify the best parameter for evaluating RV dyssynchrony. METHODS: This study assessed 100 PH patients, measuring mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), and cardiac index (CI) by right heart catheterization (RHC)...
February 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27893420/prognostic-value-of-three-dimensional-echocardiographic-right-ventricular-ejection-fraction-in-patients-with-pulmonary-arterial-hypertension
#9
Mitsushige Murata, Toshimitsu Tsugu, Takashi Kawakami, Masaharu Kataoka, Yugo Minakata, Jin Endo, Hikaru Tsuruta, Yuji Itabashi, Yuichiro Maekawa, Mitsuru Murata, Keiichi Fukuda
BACKGROUND: Right ventricular (RV) function is an independent predictor of clinical outcomes in patients with pulmonary arterial hypertension (PAH). However, it remains controversial which RV parameter should be measured as an appropriate index for the treatment of PAH. The aim of this study was to identify the most useful parameter that correlates with hemodynamics and predicts clinical outcomes in PAH. RESULTS: Most of the clinical and echocardiographic RV parameters were significantly correlated with pulmonary vascular resistance (PVR) as well as mean pulmonary arterial pressure (mPAP)...
November 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/27866570/the-diagnosis-and-treatment-of-peripheral-arterial-vascular-disease
#10
Holger Lawall, Peter Huppert, Christine Espinola-Klein, Gerhard Rümenapf
BACKGROUND: In peripheral arterial occlusive disease (PAOD), arterial stenosis or occlusion impairs perfusion in the territory of the distal portion of the aorta and the iliac and leg arteries. In Germany, the prevalence of PAOD rises with age, reaching 20% among persons over age 70. METHODS: This guideline was prepared by a collaboration of 22 medical specialty societies and two patient self-help organizations on the basis of pertinent publications that were retrieved by a systematic search in PubMed for articles that appeared from 2008 to April 2014, with a subsequent update to May 2015...
October 28, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/27836897/positive-versus-negative-effects-of-vegf165-on-ca2-signaling-and-no-production-in-human-endothelial-cells
#11
Derek S Boeldt, Jennifer Krupp, Fu-Xian Yi, Nauman Khurshid, Dinesh M Shah, Ian M Bird
: The role increased vascular endothelial growth factor (VEGF) plays in vascular function during normal vs. preeclamptic pregnancy has been a source of some controversy of late. In this study, we seek to understand how VEGF165 influences vasodilator production via Ca(2+) signaling mechanisms in human endothelial cells. We utilize human umbilical vein endothelial cells (HUVEC) as well as intact ex vivo human umbilical vein (HUV Endo) to address direct stimulation of Ca(2+) and NO by VEGF165 alone, as well as the effect of VEGF165 on subsequent ATP-stimulated Ca(2+) signaling and NO production...
January 1, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27829661/pathophysiology-of-preeclampsia-an-angiogenic-imbalance-and-long-lasting-systemic-vascular-dysfunction
#12
Takuji Tomimatsu, Kazuya Mimura, Masayuki Endo, Keiichi Kumasawa, Tadashi Kimura
Preeclampsia is a systemic vascular disorder characterized by new-onset hypertension and proteinuria after 20 weeks of gestation. This condition targets several organs, including the kidneys, liver and brain, and is the leading cause of maternal and perinatal morbidity and mortality. Furthermore, recent evidence has revealed preeclampsia as a significant risk factor for future cardiovascular diseases in these women. Over the past decade, increasing evidence has indicated that maternal angiogenic imbalances caused by placental antiangiogenic factors play a central role in the systemic vascular dysfunction underling preeclampsia...
November 10, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/27818713/mechanism-of-enhanced-cellular-uptake-and-cytosolic-retention-of-mk2-inhibitory-peptide-nano-polyplexes
#13
Kameron V Kilchrist, Brian C Evans, Colleen M Brophy, Craig L Duvall
Electrostatic complexation of a cationic MAPKAP kinase 2 inhibitory (MK2i) peptide with the anionic, pH-responsive polymer poly(propylacrylic acid) (PPAA) yields MK2i nano-polyplexes (MK2i-NPs) that significantly increase peptide uptake and intracellular retention. This study focused on elucidating the mechanism of MK2i-NP cellular uptake and intracellular trafficking in vascular smooth muscle cells. Small molecule inhibition of various endocytic pathways showed that MK2i-NP cellular uptake involves both macropinocytosis and clathrin mediated endocytosis, whereas the free peptide exclusively utilizes clathrin mediated endocytosis for cell entry...
September 2016: Cellular and Molecular Bioengineering
https://www.readbyqxmd.com/read/27803400/excess-visceral-adipose-tissue-worsens-the-vascular-endothelial-function-in-patients-with-type-2-diabetes-mellitus
#14
Akira Kurozumi, Yosuke Okada, Tadashi Arao, Yoshiya Tanaka
Objective Visceral fat obesity and metabolic syndrome correlate with atherosclerosis in part due to insulin resistance and various other factors. The aim of this study was to determine the relationship between vascular endothelial dysfunction and excess visceral adipose tissue (VAT) in Japanese patients with type 2 diabetes mellitus (T2DM). Methods In 71 T2DM patients, the reactive hyperemia index (RHI) was measured using an Endo-PAT 2000, and VAT and subcutaneous adipose tissue (SAT) were measured via CT. We also measured various metabolic markers, including high-molecular-weight adiponectin (HMW-AN)...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27753095/store-operated-interactions-between-plasmalemmal-stim1-and-trpc1-proteins-stimulate-plc%C3%AE-1-to-induce-trpc1-channel-activation-in-vascular-smooth-muscle-cells
#15
Jian Shi, Francesc Miralles, Lutz Birnbaumer, William A Large, Anthony P Albert
KEY POINTS: Depletion of Ca(2+) stores activates store-operated channels (SOCs), which mediate Ca(2+) entry pathways that regulate cellular processes such as contraction, proliferation and gene expression. In vascular smooth muscle cells (VSMCs), stimulation of SOCs composed of canonical transient receptor potential channel 1 (TRPC1) proteins requires G protein α q subunit (Gαq)/phospholipase C (PLC)β1/protein kinase C (PKC) activity. We studied the role of stromal interaction molecule 1 (STIM1) in coupling store depletion to this activation pathway using patch clamp recording, GFP-PLCδ1-PH imaging and co-localization techniques...
October 18, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27719648/therapeutic-interventions-for-advanced-glycation-end-products-and-its-receptor-mediated-cardiovascular-disease
#16
Kailash Prasad, Shuchita Tiwari
Advanced glycation end products (AGEs) are heterogeneous group of molecules formed from non-enzymatic reaction of reducing sugars with amino group of proteins, lipids, and nucleic acid. Interaction of AGEs with its cell-bound receptor (RAGE) results in generation of oxygen radicals, nuclear factor kappa-β, pro-inflammatory cytokines and cell adhesion molecules, and is involved in the pathophysiology of cardiovascular diseases (CVD). Circulating soluble forms of RAGE (sRAGE) and endo-secretory RAGE (esRAGE) compete with RAGE for ligand binding and function as a decoy...
October 6, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27702746/caspase-1-deficiency-promotes-high-fat-diet-induced-adipose-tissue-inflammation-and-the-development-of-obesity
#17
Hiroaki Kimura, Tadayoshi Karasawa, Fumitake Usui, Akira Kawashima, Yuka Endo, Motoi Kobayashi, Ai Sadatomo, Jun Nakamura, Yusaku Iwasaki, Toshihiko Yada, Hiroko Tsutsui, Tadashi Kasahara, Masafumi Takahashi
Caspase-1 is a cysteine protease responsible for the processing of the proinflammatory cytokine interleukin-1β and activated by the formation of inflammasome complexes. Although several investigations have found a link between diet-induced obesity and caspase-1, the relationship remains controversial. Here, we found that mice deficient in caspase-1 were susceptible to high-fat diet-induced obesity with increased adiposity as well as normal lipid and glucose metabolism. Caspase-1 deficiency clearly promoted the infiltration of inflammatory macrophages and increased the production of C-C motif chemokine ligand 2 (CCL2) in the adipose tissue...
November 1, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27682162/map-based-cloning-and-characterization-of-the-bph18-gene-from-wild-rice-conferring-resistance-to-brown-planthopper-bph-insect-pest
#18
Hyeonso Ji, Sung-Ryul Kim, Yul-Ho Kim, Jung-Pil Suh, Hyang-Mi Park, Nese Sreenivasulu, Gopal Misra, Suk-Man Kim, Sherry Lou Hechanova, Hakbum Kim, Gang-Seob Lee, Ung-Han Yoon, Tae-Ho Kim, Hyemin Lim, Suk-Chul Suh, Jungil Yang, Gynheung An, Kshirod K Jena
Brown planthopper (BPH) is a phloem sap-sucking insect pest of rice which causes severe yield loss. We cloned the BPH18 gene from the BPH-resistant introgression line derived from the wild rice species Oryza australiensis. Map-based cloning and complementation test revealed that the BPH18 encodes CC-NBS-NBS-LRR protein. BPH18 has two NBS domains, unlike the typical NBS-LRR proteins. The BPH18 promoter::GUS transgenic plants exhibited strong GUS expression in the vascular bundles of the leaf sheath, especially in phloem cells where the BPH attacks...
September 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27647027/traumatic-spinal-perimedullary-arteriovenous-fistula-induced-by-a-cervical-glass-stab-injury
#19
Shogo Ogita, Toshiki Endo, Tomoo Inoue, Kenichi Sato, Hidenori Endo, Teiji Tominaga
BACKGROUND: In the literature, perimedullary arteriovenous fistula (AVF) is an uncommon spinal vascular malformation that is generally regarded as a congenital lesion. To our knowledge, only a few cases of traumatic perimedullary AVF have been reported in the literature so far. CASE DESCRIPTION: A 58-year-old man presented with subarachnoid hemorrhage (SAH) resulting from a secondary perimedullary arteriovenous fistula (AVF) induced by a glass stab injury to his right posterior neck...
September 16, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27625377/blood-flow-into-basilar-tip-aneurysms-a-predictor-for-recanalization-after-coil-embolization
#20
Shin-Ichiro Sugiyama, Kuniyasu Niizuma, Kenichi Sato, Sherif Rashad, Misaki Kohama, Hidenori Endo, Toshiki Endo, Yasushi Matsumoto, Makoto Ohta, Teiji Tominaga
BACKGROUND AND PURPOSE: Hemodynamic forces may play a role in the recanalization of coiled aneurysms. The purpose of this study was to investigate the influence of presurgical hemodynamics on the efficacy of coil embolization for basilar tip aneurysms. METHODS: We identified 82 patients who underwent endovascular coil embolization for basilar tip aneurysms with a follow-up of >1 year. Presurgical hemodynamics were investigated using computational fluid dynamics with 3-dimensional data derived from rotational angiography...
October 2016: Stroke; a Journal of Cerebral Circulation
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