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https://www.readbyqxmd.com/read/28431433/experimental-anterior-ischemic-optic-neuropathy-in-diabetic-mice-exhibited-severe-retinal-swelling-associated-with-vegf-elevation
#1
Ming-Hui Sun, Mohammad Ali Shariati, Yaping Joyce Liao
Purpose: Diabetes mellitus (DM) is one of the most important risk factors for nonarteritic anterior ischemic optic neuropathy (AION). In this study, we investigated for the first time the impact of experimental AION in a DM model. Methods: We induced a photochemical thrombosis model of AION after streptozotocin-induced DM and performed serial optical coherence tomography (OCT), morphometric analyses, and VEGF levels in the retina and sera. Results: Compared with non-DM animals, experimental AION in DM mice led to significantly greater retinal swelling on day 1 and worse thinning at week 3 on OCT measurements...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431037/gestational-diabetes-alters-functions-in-offspring-s-umbilical-cord-cells-with-implications-for-cardiovascular-health
#2
Ajith Isaac Amrithraj, Anjaneyulu Kodali, Linh Nguyen, Adrian Kee Keong Teo, Cheng Wei Chang, Neerja Karnani, Kai Lyn Ng, Peter D Gluckman, Yap Seng Chong, Walter Stünkel
As non-communicable diseases such as type 2 diabetes mellitus have their roots in prenatal development and conditions such as maternal gestational diabetes (GDM), we aimed to test this hypothesis in primary cells derived from the offspring of GDM mothers compared to control subjects. We have assessed primary umbilical cord derived cells such as human umbilical vein endothelial cells (HUVECs) and Wharton's jelly derived mesenchymal stem cells (WJMSCs) from both, the offspring of GDM and non-GDM mothers. We have compared the primary isolates in cell based assays measuring proliferation, mitochondrial oxygen consumption, and the ability to support blood vessel growth...
April 19, 2017: Endocrinology
https://www.readbyqxmd.com/read/28430983/absence-of-endothelial-er%C3%AE-results-in-arterial-remodeling-and-decreased-stiffness-in-western-diet-fed-male-mice
#3
Camila Manrique-Acevedo, Francisco I Ramirez-Perez, Jaume Padilla, Victoria J Vieira-Potter, Annayya R Aroor, Brady J Barron, Dongqing Chen, Dominic Haertling, Cory Declue, James R Sowers, Luis A Martinez-Lemus
The role of estrogen receptor alpha (ERα) signaling in the vasculature of females has been described under different experimental conditions and our group recently reported that lack of endothelial ERα in female mice fed a Western diet (WD) results in amelioration of vascular stiffness. Conversely, the role of ERα in the male vasculature in this setting has not been explored. In conditions of over-nutrition and insulin resistance, augmented arterial stiffness, endothelial dysfunction and arterial remodeling contribute to the development of cardiovascular disease...
April 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28430925/islet-endothelial-cell-friend-and-foe
#4
Wilfrid Mazier, Daniela Cota
No abstract text is available yet for this article.
February 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28430921/association-between-cardiovascular-health-and-endothelial-function-with-future-erectile-dysfunction-the-multi-ethnic-study-of-atherosclerosis
#5
Abbi D Lane-Cordova, Kiarri Kershaw, Kiang Liu, David Herrington, Donald M Lloyd-Jones
BACKGROUND: The association of Cardiovascular Health (CVH; defined by the American Heart Association by assigning points for health-related behavioral and clinical factors) with endothelial and erectile dysfunction has not been reported, although endothelial and erectile dysfunction have been associated with components of CVH. METHODS: Data were collected in 1,136 men in the Multi-Ethnic Study of Atherosclerosis at baseline and erectile dysfunction status (measured by survey or medication use) at exam 5...
April 20, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28430879/role-of-phosphatase-and-tensin-homolog-pten-in-hypoxic-pulmonary-vasoconstriction
#6
Adrienn Krauszman, Tak Mak, Katalin Szaszi, Wolfgang M Kuebler
AIMS: Hypoxic pulmonary vasoconstriction (HPV) redistributes blood flow from poorly ventilated to better aerated areas in the lung, thereby optimizing ventilation-perfusion ratio (V/Q). Pulmonary artery smooth muscle cell (PASMC) contraction in response to hypoxia is triggered by Ca2+ influx via transient receptor potential canonical 6 (TRPC6) cation channels that have translocated to caveolae in the plasma membrane. Since phosphatase and tensin homolog (PTEN) was suggested to regulate TRPC6 in endothelial cells, we aimed to define its role in the hypoxic response of PASMCs and as a putative mediator of HPV...
April 18, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28430711/evaluation-of-kdr-rs34231037-as-a-predictor-of-sunitinib-efficacy-in-patients-with-metastatic-renal-cell-carcinoma
#7
María Apellániz-Ruiz, Meta H Diekstra, Juan M Roldán, Epie Boven, Daniel Castellano, Hans Gelderblom, Ron H J Mathijssen, Jesse J Swen, Stefan Böhringer, Jesús García-Donás, Brian I Rini, Henk-Jan Guchelaar, Cristina Rodríguez-Antona
The identification of biomarkers able to predict clinical benefit from vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitors is urgently needed. Recently, Maitland and colleagues described an association between KDR-rs34231037 and soluble VEGFR2 levels as well as pazopanib pharmacodynamics. We investigated in a well-characterized series of metastatic clear cell renal cell carcinoma patients whether rs34231037 could influence sunitinib response. Clinical data and DNA were available from an international series of 276 patients...
April 20, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28430709/vitamin-d3-repressed-astrocyte-activation-following-lipopolysaccharide-stimulation-in-vitro-and-in-neonatal-rats
#8
Ke-Ping Jiao, Shao-Min Li, Wen-Yan Lv, Ming-Liang Jv, Hai-Yan He
Vitamin D3 has been reported to be an immunity modulator and high levels of vitamin D3 are correlated with a decreased risk for developing diseases in the central nervous system. Astrocytes are important immune cells and contribute toward inflammation during neurological diseases. The vitamin D receptor has been reported to be expressed in astrocytes; however, the effect of vitamin D3 on astrocyte activation has not been studied. Here, we found that lipopolysaccharide stimulation in astrocytes could enhance the expression of vitamin D receptor and Cyp27B1, which encodes the enzyme for converting vitamin D3 into its active form...
April 20, 2017: Neuroreport
https://www.readbyqxmd.com/read/28430629/vascular-endothelial-growth-factor-a-polymorphisms-are-associated-with-increased-risk-of-coronary-heart-disease-a-meta-analysis
#9
Yafeng Wang, Qiuyu Huang, Jianchao Liu, Yanan Wang, Gongfeng Zheng, Ling Lin, Hui Yu, Weifeng Tang, Ziyang Huang
Coronary heart disease (CHD) is a common complex disease resulting from the interaction of multiple environmental and genetic factors. To assess the potential relationship of vascular endothelial growth factor (VEGFA) rs699947 C>A, rs3025039 C>T and rs2010963 G>C polymorphisms with CHD risk, a comprehensive meta-analysis was conducted. A systematic search of EMBASE and PubMed online database for publications on VEGFA polymorphisms and risk of CHD was carried out. Crude Odds ratios (ORs) with their 95% confidence intervals (CIs) were calculated to determine the association...
February 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430357/reactive-oxygen-species-key-regulators-in-vascular-health-and-diseases
#10
REVIEW
Qishan Chen, Qiwen Wang, Jianhua Zhu, Qingzhong Xiao, Li Zhang
Reactive oxygen species (ROS) are a group of small reactive molecules that play critical roles in the regulation of various cell functions and biological processes. In the vascular system, physiological levels of ROS are essential for normal vascular functions including endothelial homeostasis and smooth muscle cell contraction. In contrast, uncontrolled overproduction of ROS resulted from imbalance of ROS generation and elimination, leads to the development of vascular diseases. Excessive ROS cause vascular cell damages, recruitment of inflammatory cells, lipid peroxidation, activation of metalloproteinases, and deposition of extracellular matrix, collectively leading to vascular remodeling...
April 21, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28430355/does-endothelial-tetrahydrobiopterin-control-the-endothelial-nitric-oxide-coupling-state-in-arterial-resistance-arteries
#11
Thomas Münzel, Andreas Daiber
No abstract text is available yet for this article.
April 21, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28430288/mesenchymal-proangiogenic-factor-ykl-40-related-to-glioblastomas-and-its-relationship-with-the-subventricular-zone
#12
Kelvin M Pińa Batista, Sayoa Alvarez de Eulate-Beramendi, Kenia Y Álvarez Reyes de Pińa, Pedro Reimunde Figueira, Adan Fernandez Canal, Josué M Avecillas Chasin, Ángela Meilan, Rodrigo Ugalde, Ivan Fernandez Vega
<i>Glioblastoma is the most common primary brain tumor. Despite multimodality therapy with aggressive microsurgical resection and adjuvant chemotherapy and radiotherapy, the median survival is below 15 months. Glioblastomas are heterogeneous tumors with high resistance to most chemotherapeutic drugs. According to reliable evidence, YKL-40, one of the best investigated chitinase-like protein, may facilitate invasion, migration and angiogenesis, and could be also responsible for temozolomide resistance in glioblastoma, thus conferring a dismal prognosis...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28430284/o-2-6-oxocyclohex-1-en-1-yl-methyl-diazen-1-ium-1-2-diolates-a-new-class-of-nitric-oxide-donors-activatable-by-gsh-gst%C3%AF-with-both-anti-proliferative-and-anti-metastatic-activities-against-melanoma
#13
Chengfeng Bai, Rongfang Xue, Jianbing Wu, Tian Lv, Xiaojun Luo, Yun Huang, Yan Gong, Honghua Zhang, Yihua Zhang, Zhangjian Huang
The new nitric oxide (NO) donor O(2)-(6-oxocyclohex-1-en-1-yl)methyl diazen-1-ium-1,2-diolate 3c could simultaneously liberate NO as well as an active 3-glutathionyl-2-exomethylene-cyclohexanone 2 in the presence of GSH/GSTπ; exhibit potent antiproliferative activity; repress migration, invasion, and lateral migration of metastatic B16-BL6 cells; and significantly decrease hetero-adhesion of B16-BL6 cells to human umbilical vein endothelial cells.
April 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28430178/endothelial-keratoplasty-is-descemet-membrane-endothelial-keratoplasty-the-holy-grail-of-lamellar-surgery-no
#14
M Tsatsos, V S Liarakos, C MacGregor, I Athanasiadis, E T Detorakis, M M Moschos, P Hossain, D F Anderson
No abstract text is available yet for this article.
April 21, 2017: Eye
https://www.readbyqxmd.com/read/28430117/fluvastatin-therapy-could-not-decrease-progression-of-paroxysmal-atrial-fibrillation-in-non-valvular-disease-patients
#15
Qiang Tan, Shuangyue Zhang, Xiaoyi Zou, Jun Zhao, Jia Hao, Qian Sun
OBJECTIVE: This study aimed to evaluate whether fluvastatin therapy could decrease the probability of atrial fibrillation (AF) progression from paroxysmal AF to permanent AF and decrease the recurrence frequency of AF. METHODS: Analyses were performed using two-tailed Student's t test or Mann-Whitney U tests. Categorical variables were compared with the χ2 statistics or Fisher's exact test. Patients with paroxysmal AF were randomized case-control, prospective into either the fluvastatin group (n=61) or control group (n=57)...
April 10, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28430012/zo-1-expression-is-suppressed-by-gm-csf-via-mir-96-erg-in-brain-microvascular-endothelial-cells
#16
Hu Zhang, Shuhong Zhang, Jilin Zhang, Dongxin Liu, Jiayi Wei, Wengang Fang, Weidong Zhao, Yuhua Chen, Deshu Shang
The level of granulocyte-macrophage colony-stimulating factor (GM-CSF) increases in some disorders such as vascular dementia, Alzheimer's disease, and multiple sclerosis. We previously reported that in Alzheimer's disease patients, a high level of GM-CSF in the brain parenchyma downregulated expression of ZO-1, a blood-brain barrier tight junction protein, and facilitated the infiltration of peripheral monocytes across the blood-brain barrier. However, the molecular mechanism underlying regulation of ZO-1 expression by GM-CSF is unclear...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28430000/neuroprotective-and-regenerative-roles-of-intranasal-wnt-3a-administration-after-focal-ischemic-stroke-in-mice
#17
Zheng Zachory Wei, James Ya Zhang, Tammi M Taylor, Xiaohuan Gu, Yingying Zhao, Ling Wei
Wnt signaling is a conserved pathway involved in expansion of neural progenitors and lineage specification during development. However, the role of Wnt signaling in the post-stroke brain has not been well-elucidated. We hypothesized that Wnt-3a would play an important role for neurogenesis and brain repair. Adult male mice were subjected to a focal ischemic stroke targeting the sensorimotor cortex. Mice that received Wnt-3a (2 µg/kg/day, 1 h after stroke and once a day for the next 2 days, intranasal delivery) had reduced infarct volume compared to stroke controls...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28429859/aneurysms-in-neurofibromatosis-type-2-evidence-for-vasculopathy
#18
Shazia K Afridi, Suki Thomson, Steve E J Connor, Daniel C Walsh, Rosalie E Ferner
There have been anecdotal reports of vasculopathy associated with Neurofibromatosis Type 2 (NF2). Given the increasing use of bevacizumab, a vascular endothelial growth factor inhibitor which results in an increased risk of bleeding, it is important to ascertain if there is a predisposition to vascular abnormalities in NF2. In our unit NF2 patients undergo annual MRI brain and internal auditory meatus imaging. We noted incidental intracranial aneurysms in some patients and sought to determine the prevalence of intracranial aneurysms in our cohort of NF2 patients...
April 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28429770/neurons-secrete-mir-132-containing-exosomes-to-regulate-brain-vascular-integrity
#19
Bing Xu, Yu Zhang, Xu-Fei Du, Jia Li, Hua-Xing Zi, Ji-Wen Bu, Yong Yan, Hua Han, Jiu-Lin Du
Vascular integrity helps maintain brain microenvironment homeostasis, which is critical for the normal development and function of the central nervous system. It is known that neural cells can regulate brain vascular integrity. However, due to the high complexity of neurovascular interactions involved, understanding of the neural regulation of brain vascular integrity is still rudimentary. Using intact zebrafish larvae and cultured rodent brain cells, we find that neurons transfer miR-132, a highly conserved and neuron-enriched microRNA, via secreting exosomes to endothelial cells (ECs) to maintain brain vascular integrity...
April 21, 2017: Cell Research
https://www.readbyqxmd.com/read/28429668/the-role-of-mitochondria-associated-reactive-oxygen-species-in-the-amyloid-%C3%AE-induced-production-of-angiogenic-factors-by-arpe-19-cells
#20
L Wu, X Tan, L Liang, H Yu, C Wang, D Zhang, A Kijlstra, P Yang
OBJECTIVE: This study aimed to investigate the mechanisms whereby Amyloid-beta (Aβ) induces the production of angiogenic factors by a human retinal pigment epithelial cell line (ARPE-19) cells. METHODS: ARPE-19 cells obtained from the American Type Culture Collection (ATCC) were utilized in this study. The expression level of vascular endothelial growth factor (VEGF), Interleukin-8 (IL-8), monocyte chemoattractant protein-1 (MCP-1) and complement activation fragments C3a and C5a were measured by Real-time quantitative PCR (RT-PCR) and Enzyme-linked immunosorbent assay (ELISA)...
March 31, 2017: Current Molecular Medicine
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