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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
#1
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/28335116/the-current-state-of-the-vascular-low-frequency-disease-consortium
#2
Michael P Harlander-Locke, Peter F Lawrence
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335021/mri-visible-perivascular-space-location-is-associated-with-alzheimer-s-disease-independently-of-amyloid-burden
#3
Gargi Banerjee, Hee Jin Kim, Zoe Fox, H Rolf Jäger, Duncan Wilson, Andreas Charidimou, Han Kyu Na, Duk L Na, Sang Won Seo, David J Werring
Perivascular spaces that are visible on magnetic resonance imaging (MRI) are a neuroimaging marker of cerebral small vessel disease. Their location may relate to the type of underlying small vessel pathology: those in the white matter centrum semi-ovale have been associated with cerebral amyloid angiopathy, while those in the basal ganglia have been associated with deep perforating artery arteriolosclerosis. As cerebral amyloid angiopathy is an almost invariable pathological finding in Alzheimer's disease, we hypothesized that MRI-visible perivascular spaces in the centrum semi-ovale would be associated with a clinical diagnosis of Alzheimer's disease, whereas those in the basal ganglia would be associated with subcortical vascular cognitive impairment...
February 17, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334974/efficacy-and-safety-of-sequential-use-of-everolimus-in-japanese-patients-with-advanced-renal-cell-carcinoma-after-failure-of-first-line-treatment-with-vascular-endothelial-growth-factor-receptor-tyrosine-kinase-inhibitor-a-multicenter-phase-ii-clinical-trial
#4
Masafumi Oyama, Takayuki Sugiyama, Masahiro Nozawa, Kiyohide Fujimoto, Takeshi Kishida, Go Kimura, Noriaki Tokuda, Shiro Hinotsu, Kojiro Shimozuma, Hideyuki Akaza, Seiichiro Ozono
Objective: Many studies have shown the efficacy of everolimus after pretreatment with vascular endothelial growth factor receptor-tyrosine kinase inhibitors. We investigated the efficacy and safety of everolimus as a second-line treatment after the failure of vascular endothelial growth factor receptor-tyrosine kinase inhibitor therapy in Japanese patients with advanced renal cell carcinoma. Methods: This was an open-label, multicenter, phase II trial conducted in Japan through the central registration system...
March 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334911/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#5
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Bo Simona, Roberto Gambino
The loss-of-function rs4374383 G>A variant in Myeloid-epithelial-reproductive Tyrosine Kinase (MERTK) gene has been linked to hepatic fibrosis in chronic liver diseases. MERTK is expressed by immune and non-immune cells involved in inflammation, metabolism and vascular homeostasis. We assessed the impact of MERTK rs4374383 G>A variant on nonalcoholic fatty liver disease (NAFLD) incidence and severity and on glucose and lipid metabolism.We followed-up 305 healthy nonobese nondiabetic, metabolic syndrome-free insulin sensitive participants in a population-based study, characterized for MERTK G>A polymorphism, adipokine profile and inflammatory markers...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334878/high-expression-of-ire1-in-lung-adenocarcinoma-is-associated-with-a-lower-rate-of-recurrence
#6
Toshio Sakatani, Keita Maemura, Noriko Hiyama, Yosuke Amano, Kousuke Watanabe, Hidenori Kage, Masashi Fukayama, Jun Nakajima, Yutaka Yatomi, Takahide Nagase, Daiya Takai
Objective: Recent reports have shown that endoplasmic reticulum stress is associated with cancer. However, the impacts of endoplasmic reticulum stress on the prognosis of lung cancer are unknown. Therefore, in this study, we sought to reveal the relationship between the expression of endoplasmic reticulum stress-related genes (endoplasmic reticulum oxidoreductase 1L, protein kinase RNA-like endoplasmic reticulum kinase, activating transcription factor 6 and inositol-requiring kinase 1) and the outcome of lung adenocarcinoma...
March 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334869/emerging-concepts-in-sporadic-cerebral-amyloid-angiopathy
#7
Andreas Charidimou, Gregoire Boulouis, M Edip Gurol, Cenk Ayata, Brian J Bacskai, Matthew P Frosch, Anand Viswanathan, Steven M Greenberg
Sporadic cerebral amyloid angiopathy is a common, well-defined small vessel disease and a largely untreatable cause of intracerebral haemorrhage and contributor to age-related cognitive decline. The term 'cerebral amyloid angiopathy' now encompasses not only a specific cerebrovascular pathological finding, but also different clinical syndromes (both acute and progressive), brain parenchymal lesions seen on neuroimaging and a set of diagnostic criteria-the Boston criteria, which have resulted in increasingly detected disease during life...
March 13, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334718/sex-differences-do-not-exist-in-outcomes-among-stroke-patients-with-intracranial-atherosclerosis-in-china-subgroup-analysis-from-the-chinese-intracranial-atherosclerosis-study
#8
Yuehua Pu, Na Wei, Dandan Yu, Yilong Wang, Xinying Zou, Yannie O Y Soo, Yuesong Pan, Thomas W H Leung, Lawrence K S Wong, Yongjun Wang, Liping Liu
BACKGROUND: To date, sex difference in outcomes among patients with intracranial atherosclerosis (ICAS) has rarely been discussed in China as well as in the world. This study aimed to estimate the sex difference in outcomes among patients with ICAS in Chinese cerebral ischemia patients. METHODS: We analyzed 1,335 men and women with ICAS who were enrolled in the Chinese Intracranial Atherosclerosis study. They were followed-up for ischemic stroke recurrence, any cause of death, cerebral vascular events (including transient ischemic attack, ischemic and hemorrhagic stroke), combined end points (including cerebral vascular events, angina or myocardial infarction, pulmonary embolism, peripheral vascular events), and unfavorable outcome (modified Rankin scale score of 3-6) at 1 year...
March 24, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28334544/-antiplatelet-thromboprophylaxis-of-arterial-vascular-diseases-and-organovascular-ischemic-diseases
#9
Peter Gavorník, Andrej Dukát, Ľudovít Gašpar, Eva Gavorníková, Naďa Hučková, Anna Petrášová, Gabriela Gubo, Iveta Gašparová, Lujza Sabolová
Antiplatelet therapy by acetylsalicylic acid (ASA, aspirin) provided pivotal advances in the prevention and treatment of organovascular (angiovascular, cardiovascular, cerebrovascular, extremitovascular, renovascular, genitovascular, mesenteriointestinokolonovascular, bronchopulmovascular, oculovascular, otovascular and other) arterial ischemic diseases. Currently available antiplatelet drugs have some limitations which might be overcomed by improved dosing regimens, use of combination of agents affecting different platelet functions and, in particular, by the new antiplatelet drugs (new arterial antithrombotics) with distinct pharmacodynamic properties offering new advantages, including faster onset of action, greater potency, and reversibility of effects...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28334037/ang1-treatment-reduces-muscle-pathology-and-prevents-a-decline-in-perfusion-in-dmd-mice
#10
Kelly M Gutpell, Nikola Tasevski, Boaz Wong, William Thomas Hrinivich, Feng Su, Jennifer Hadway, Lise Desjardins, Ting-Yim Lee, Lisa Marie Hoffman
Vascular endothelial growth factor (VEGF) and other pro-angiogenic growth factors have been investigated to enhance muscle tissue perfusion and repair in Duchenne muscular dystrophy (DMD). Current understanding is limited by a lack of functional data following in vivo delivery of these growth factors. We previously used dynamic contrast-enhanced computed tomography to monitor disease progression in murine models of DMD, but no study to date has utilized this imaging technique to assess vascular therapy in a preclinical model of DMD...
2017: PloS One
https://www.readbyqxmd.com/read/28333647/automatic-choroidal-layer-segmentation-using-markov-random-field-and-level-set-method
#11
Chuang Wang, Yongmin Li, Ya Xing Wang
The choroid is an important vascular layer that supplies oxygen and nourishment to the retina. The changes in thickness of the choroid have been hypothesised to relate to a number of retinal diseases in the pathophysiology. In this work, an automatic method is proposed for segmenting the choroidal layer from macular images by using the level set framework. The 3D nonlinear anisotropic diffusion filter is used to remove all the OCT imaging artifacts including the speckle noise and to enhance the contrast. The distance regularisation and edge constraint terms are embedded into the level set method to avoid the irregular and small regions and keep information about the boundary between the choroid and sclera...
March 20, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28333380/smooth-muscle-ion-channels-and-regulation-of-vascular-tone-in-resistance-arteries-and-arterioles
#12
Nathan R Tykocki, Erika M Boerman, William F Jackson
Vascular tone of resistance arteries and arterioles determines peripheral vascular resistance, contributing to the regulation of blood pressure and blood flow to, and within the body's tissues and organs. Ion channels in the plasma membrane and endoplasmic reticulum of vascular smooth muscle cells (SMCs) in these blood vessels importantly contribute to the regulation of intracellular Ca2+ concentration, the primary determinant of SMC contractile activity and vascular tone. Ion channels provide the main source of activator Ca2+ that determines vascular tone, and strongly contribute to setting and regulating membrane potential, which, in turn, regulates the open-state-probability of voltage gated Ca2+ channels (VGCCs), the primary source of Ca2+ in resistance artery and arteriolar SMCs...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28333356/the-safety-and-efficacy-of-controlled-ovarian-hyperstimulation-for-fertility-preservation-in-women-with-early-breast-cancer-a-systematic-review
#13
Rachael J Rodgers, Geoffrey D Reid, Juliette Koch, Rebecca Deans, William L Ledger, Michael Friedlander, Robert B Gilchrist, Kirsty A Walters, Jason A Abbott
STUDY QUESTION: Can controlled ovarian hyperstimulation (COH) for fertility preservation be effectively conducted in women with breast cancer without worsening their prognosis? SUMMARY ANSWER: COH with co-administration of letrozole suppresses oestradiol levels without significantly impacting oocyte yield or decreasing disease-free survival rates. WHAT IS KNOWN ALREADY: Oestradiol has the capacity to stimulate the proliferation of breast cancer cells...
February 27, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333321/preconception-and-early-pregnancy-maternal-haemodynamic-changes-in-healthy-women-in-relation-to-pregnancy-viability
#14
F L Foo, A Collins, C M McEniery, P R Bennett, I B Wilkinson, C C Lees
STUDY QUESTION: Are there differences in preconception cardiovascular function between women who have a viable pregnancy and those who have a first trimester miscarriage? SUMMARY ANSWER: Preconception cardiovascular function of central haemodynamics and arterial function are similar between women who have a viable pregnancy and those who have a first trimester miscarriage. WHAT IS KNOWN ALREADY: Miscarriages have been associated with increased long-term cardiovascular disease risk, and arterial and cardiovascular dysfunction has been hypothesised as the common link...
March 16, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333208/soluble-vcam-1-soluble-icam-1-ratio-is-a-promising-biomarker-for-diagnosing-endometriosis
#15
L Kuessel, R Wenzl, K Proestling, S Balendran, P Pateisky, Yotova, G Yerlikaya, B Streubel, H Husslein
STUDY QUESTION: Do cell adhesion molecules play a role in endometriosis, and can they be used as a biomarker for diagnosing endometriosis? SUMMARY ANSWER: Altered expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) in the endometrium and peritoneum may play a key role in endometriosis and the soluble VCAM-1/soluble ICAM-1 ratio is a promising biomarker. WHAT IS KNOWN ALREADY: Cell adhesion molecules are cell surface proteins that mediate cellular adherence, inflammatory and immune responses, and cancer-related biological processes...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333125/clarity-reveals-dynamics-of-ovarian-follicular-architecture-and-vasculature-in-three-dimensions
#16
Yi Feng, Peng Cui, Xiaowei Lu, Brian Hsueh, Fredrik Möller Billig, Livia Zarnescu Yanez, Raju Tomer, Derek Boerboom, Peter Carmeliet, Karl Deisseroth, Aaron J W Hsueh
Optimal distribution of heterogeneous organelles and cell types within an organ is essential for physiological processes. Unique for the ovary, hormonally regulated folliculogenesis, ovulation, luteal formation/regression and associated vasculature changes lead to tissue remodeling during each reproductive cycle. Using the CLARITY approach and marker immunostaining, we identified individual follicles and corpora lutea in intact ovaries. Monitoring lifetime changes in follicle populations showed age-dependent decreases in total follicles and percentages of advanced follicles...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332618/the-chemokine-receptor-cxcr4-promotes-granuloma-formation-by-sustaining-a-mycobacteria-induced-angiogenesis-programme
#17
Vincenzo Torraca, Claudia Tulotta, B Ewa Snaar-Jagalska, Annemarie H Meijer
CXC chemokine receptor 4 plays a critical role in chemotaxis and leukocyte differentiation. Furthermore, there is increasing evidence that links this receptor to angiogenesis. Using the well-established zebrafish-Mycobacterium marinum model for tuberculosis, angiogenesis was recently found to be important for the development of cellular aggregates called granulomas that contain the mycobacteria and are the hallmark of tuberculosis disease. Here, we found that initiation of the granuloma-associated proangiogenic programme requires CXCR4 signalling...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332616/long-acting-protein-drugs-for-the-treatment-of-ocular-diseases
#18
Joy G Ghosh, Andrew A Nguyen, Chad E Bigelow, Stephen Poor, Yubin Qiu, Nalini Rangaswamy, Richard Ornberg, Brittany Jackson, Howard Mak, Tucker Ezell, Vania Kenanova, Elisa de la Cruz, Ana Carrion, Bijan Etemad-Gilbertson, Roxana Garcia Caro, Kan Zhu, Vinney George, Jirong Bai, Radhika Sharma-Nahar, Siyuan Shen, Yiqin Wang, Kulandayan K Subramanian, Elizabeth Fassbender, Michael Maker, Shawn Hanks, Joanna Vrouvlianis, Barrett Leehy, Debby Long, Melissa Prentiss, Viral Kansara, Bruce Jaffee, Thaddeus P Dryja, Michael Roguska
Protein drugs that neutralize vascular endothelial growth factor (VEGF), such as aflibercept or ranibizumab, rescue vision in patients with retinal vascular diseases. Nonetheless, optimal visual outcomes require intraocular injections as frequently as every month. Here we report a method to extend the intravitreal half-life of protein drugs as an alternative to either encapsulation or chemical modifications with polymers. We combine a 97-amino-acid peptide of human origin that binds hyaluronan, a major macromolecular component of the eye's vitreous, with therapeutic antibodies and proteins...
March 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28332510/recent-advances-in-understanding-hypertension-development-in-sub-saharan-africa
#19
REVIEW
A E Schutte, S Botha, C M T Fourie, L F Gafane-Matemane, R Kruger, L Lammertyn, L Malan, C M C Mels, R Schutte, W Smith, J M van Rooyen, L J Ware, H W Huisman
Consistent reports indicate that hypertension is a particularly common finding in black populations. Hypertension occurs at younger ages and is often more severe in terms of blood pressure levels and organ damage than in whites, resulting in a higher incidence of cardiovascular disease and mortality. This review provides an outline of recent advances in the pathophysiological understanding of blood pressure elevation and the consequences thereof in black populations in Africa. This is set against the backdrop of populations undergoing demanding and rapid demographic transition, where infection with the human immunodeficiency virus predominates, and where under and over-nutrition coexist...
March 23, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28332442/ultrasound-imaging-in-the-diagnosis-of-large-vessel-vasculitis
#20
Michael Czihal, Christian Lottspeich, Ulrich Hoffmann
Nowadays noninvasive vascular imaging has an important role in the diagnostic work-up of the large vessel vasculitides (LVV), most importantly giant cell arteritis (GCA) and Takayasu arteritis. Among the imaging modalities available, ultrasound (US) has several important advantages, including low costs, rapid and repetitive availability without exposure to radiation, and high spatial resolution for assessment of large and medium-sized arteries. Therefore, US can be regarded the first line imaging method in suspected LVV...
March 23, 2017: VASA. Zeitschrift Für Gefässkrankheiten
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