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Endothelial cells nutrition

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https://www.readbyqxmd.com/read/28918363/changes-in-zn-homeostasis-during-long-term-culture-of-primary-endothelial-cells-and-effects-of-zn-on-endothelial-cell-senescence
#1
Marco Malavolta, Laura Costarelli, Robertina Giacconi, Andrea Basso, Francesco Piacenza, Elisa Pierpaoli, Mauro Provinciali, Ogo A Ogo, Dianne Ford
Endothelial cell senescence and Zn nutritional status influence cardiovascular disease. The influence of Zn appears dichotomous, hence it is imperative to understand the relationship with cellular senescence to improve knowledge about the molecular and cellular basis of the disease. Here we aimed to determine: 1) the impact of chronic exposure to a moderately high dose of Zn on senescence of endothelial cells; 2) the changes in Zn homeostasis during the lifespan of primary cultured endothelial cells; and 3) the susceptibility of proliferating and senescent endothelial cells to cell death after short term exposure to increasing doses of Zn and of the Zn chelator TPEN...
September 13, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28900017/omega-3-fatty-acids-and-inflammatory-processes-from-molecules-to-man
#2
REVIEW
Philip C Calder
Inappropriate, excessive or uncontrolled inflammation contributes to a range of human diseases. Inflammation involves a multitude of cell types, chemical mediators and interactions. The present article will describe nutritional and metabolic aspects of omega-6 (n-6) and omega-3 (n-3) fatty acids and explain the roles of bioactive members of those fatty acid families in inflammatory processes. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are n-3 fatty acids found in oily fish and fish oil supplements...
September 12, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28886590/corpora-lutea-in-superovulated-ewes-fed-different-planes-of-nutrition
#3
A Kraisoon, D A Redmer, C S Bass, C Navanukraw, S T Dorsam, V Valkov, A Reyaz, A T Grazul-Bilska
The corpus luteum (CL) is an ovarian structure which is critical for the maintenance of reproductive cyclicity and pregnancy support. Diet and/or diet components may affect some luteal functions. FSH is widely used to induce multiple follicle development and superovulation. We hypothesized that FSH would affect luteal function in ewes fed different nutritional planes. Therefore, the aim of this study was to determine if FSH-treatment affects (1) ovulation rate; (2) CL weight; (3) cell proliferation; (4) vascularity; (5) expression of endothelial nitric oxide (eNOS) and soluble guanylate cyclase (sGC) proteins; and (6) luteal and serum progesterone (P4) concentration in control (C), overfed (O), and underfed (U) ewes at the early- and mid-luteal phases...
August 12, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28839162/microrna-204-promotes-vascular-endoplasmic-reticulum-stress-and-endothelial-dysfunction-by-targeting-sirtuin1
#4
Modar Kassan, Ajit Vikram, Qiuxia Li, Young-Rae Kim, Santosh Kumar, Mohanad Gabani, Jing Liu, Julia S Jacobs, Kaikobad Irani
Endoplasmic reticulum (ER) stress has been implicated in vascular endothelial dysfunction of obesity, diabetes, and hypertension. MicroRNAs play an important role in regulating ER stress. Here we show that microRNA-204 (miR-204) promotes vascular ER stress and endothelial dysfunction by targeting the Sirtuin1 (Sirt1) lysine deacetylase. Pharmacologic ER stress induced by tunicamycin upregulates miR-204 and downregulates Sirt1 in the vascular wall/endothelium in vivo and in endothelial cells in vitro. Inhibition of miR-204 protects against tunicamycin-induced vascular/endothelial ER stress, associated impairment of endothelium-dependent vasorelaxation, and preserves endothelial Sirt1...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28826357/3d-printing-and-angiogenesis-tailored-agarose-type-i-collagen-blends-comprise-3d-printability-and-angiogenesis-potential-for-tissue-engineered-substitutes
#5
Franziska Kreimendahl, Marius Köpf, Anja Lena Thiebes, Daniela F Duarte Campos, Andreas Blaeser, Thomas Schmitz-Rode, Christian Apel, Stefan Jockenhoevel, Horst Fischer
3D bioprinting is a promising technology for manufacturing cell-laden tissue engineered constructs. Larger tissue substitutes, however, require a vascularized network to ensure nutrition supply. Therefore, tailored bioinks combining 3D printability and cell-induced vascularization are needed. We hypothesize that tailored hydrogel blends made of agarose-type I collagen and agarose-fibrinogen are 3D printable and will allow the formation of capillary-like structures by human umbilical vein endothelial cells and human dermal fibroblasts...
August 21, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28718185/congenital-pulmonary-lymphangiectasia-a-disorder-not-only-of-fetoneonates
#6
Shi-Min Yuan
Congenital pulmonary lymphangiectasia (CPL) is a rare developmental disorder of the lung, characterized by dilation of pulmonary subpleural, interlobar, perivascular and peribronchial lymphatics. The incidence of CPL among stillborn and neonates was estimated to be <1%. The etiology of CPL is unknown. However, it has been suspected to be of a genetic background. Recent basic studies revealed that it might be caused by the FOXC2, Vegfr-3 and integrin α9β1gene mutations. A clinical diagnosis of CPL can be made much easier in full-term neonates who present with respiratory distress, pleural (especially chylous) effusions with or without generalized edema...
July 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/28669628/role-of-oxidative-stress-in-cardiovascular-disease-outcomes-following-exposure-to-ambient-air-pollution
#7
REVIEW
Frank J Kelly, Julia C Fussell
Exposure to ambient air pollution is associated with adverse cardiovascular outcomes. These are manifested through several, likely overlapping, pathways including at the functional level, endothelial dysfunction, atherosclerosis, pro-coagulation and alterations in autonomic nervous system balance and blood pressure. At numerous points within each of these pathways, there is potential for cellular oxidative imbalances to occur. The current review examines epidemiological, occupational and controlled exposure studies and research employing healthy and diseased animal models, isolated organs and cell cultures in assessing the importance of the pro-oxidant potential of air pollution in the development of cardiovascular disease outcomes...
June 29, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28593583/regulating-autophagy-as-a-therapeutic-target-for-diabetic-nephropathy
#8
REVIEW
Munehiro Kitada, Yoshio Ogura, Itaru Monno, Daisuke Koya
PURPOSE OF REVIEW: Autophagy promotes cellular health in response to various cellular stresses and to changes in nutrient conditions. In this review, we focus on the role of autophagy in the pathogenesis of diabetic nephropathy and discuss the regulation of autophagy as a new therapeutic target for the suppression of diabetic nephropathy. RECENT FINDINGS: Previous studies have indicated that autophagy deficiency or insufficiency in renal cells, including podocytes, mesangial cells, endothelial cells and tubular cells, contributes to the pathogenesis of diabetic nephropathy...
July 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28482676/skin-microvascular-endothelial-dysfunction-is-associated-with-type-2-diabetes-independently-of-microalbuminuria-and-arterial-stiffness
#9
Hanna Jonasson, Sara Bergstrand, Fredrik H Nystrom, Toste Länne, Carl Johan Östgren, Niclas Bjarnegård, Ingemar Fredriksson, Marcus Larsson, Tomas Strömberg
Skin and kidney microvascular functions may be affected independently in diabetes mellitus. We investigated skin microcirculatory function in 79 subjects with diabetes type 2, where 41 had microalbuminuria and 38 not, and in 41 age-matched controls. The oxygen saturation, fraction of red blood cells and speed-resolved microcirculatory perfusion (% red blood cells × mm/s) divided into three speed regions: 0-1, 1-10 and above 10 mm/s, were assessed during baseline and after local heating of the foot with a new device integrating diffuse reflectance spectroscopy and laser Doppler flowmetry...
May 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28436224/multifunctional-hydrogels-prepared-by-dual-ion-cross-linking-for-chronic-wound-healing
#10
Yonghui Li, Yan Han, Xiaoya Wang, Jinliang Peng, Yuhong Xu, Jiang Chang
The creation of a moist environment and promotion of blood vessel formation are critical for wound healing. Sodium alginate (SA) hydrogel, which has good biocompatibility and is able to provide a moist environment, has been widely used as a wound dressing. However, it lacks antibacterial ability and bioactivities, which would facilitate chronic wound healing. On the basis of the gelation characteristics of SA and the bioactive hardystonite (HS) bioceramic, we designed a unique, bioactive, injectable composite hydrogel through double ion cross-linking, in which divalent ions, such as Ca(2+) and Zn(2+) function as cross-linkers; Zn(2+) also functions as an antibacterial component and as nutrition for wound healing, and Si ions play a key role in determining the bioactivity of the hydrogel...
May 5, 2017: ACS Applied Materials & Interfaces
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
#11
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-α (ERα) signaling in the vasculature of females has been described under different experimental conditions and our group recently reported that lack of endothelial cell (EC) 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 overnutrition and insulin resistance, augmented arterial stiffness, endothelial dysfunction, and arterial remodeling contribute to the development of cardiovascular disease...
June 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28427958/micro-anatomical-changes-in-major-blood-vessel-caused-by-dengue-virus-serotype-2-infection
#12
Sivan Padma Priya, S Sakinah, Mok Pooi Ling, Hui-Yee Chee, Akon Higuchi, Rukman Awang Hamat, Vasantha Kumari Neela, Abdullah A Alarfaj, Murugan A Munusamy, Ashraf A Hatamleh, Ahmed E Al-Sabri, Ibrahim Ahmad Abdulaziz Al-Suwailem, Mariappan Rajan, Giovanni Benelli, Marlina, S Suresh Kumar
Dengue virus (DENV) has emerged as a major economic concern in developing countries, with 2.5 billion people believed to be at risk. Vascular endothelial cells (ECs) lining the circulatory system from heart to end vessels perform crucial functions in the human body, by aiding gas exchange in lungs, gaseous, nutritional and its waste exchange in all tissues, including the blood brain barrier, filtration of fluid in the glomeruli, neutrophil recruitment, hormone trafficking, as well as maintenance of blood vessel tone and hemostasis...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28396609/in-vitro-biomimetic-platforms-featuring-a-perfusion-system-and-3d-spheroid-culture-promote-the-construction-of-tissue-engineered-corneal-endothelial-layers
#13
Shanyi Li, Yuting Han, Hao Lei, Yingxin Zeng, Zekai Cui, Qiaolang Zeng, Deliang Zhu, Ruiling Lian, Jun Zhang, Zhe Chen, Jiansu Chen
Corneal endothelial cells (CECs) are very important for the maintenance of corneal transparency. However, in vitro, CECs display limited proliferation and loss of phenotype via endothelial to mesenchymal transformation (EMT) and cellular senescence. In this study, we demonstrate that continuous supplementary nutrition using a perfusion culture bioreactor and three-dimensional (3D) spheroid culture can be used to improve CEC expansion in culture and to construct a tissue-engineered CEC layer. Compared with static culture, perfusion-derived CECs exhibited an increased proliferative ability as well as formed close cell-cell contact junctions and numerous surface microvilli...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28388380/acquired-amino-acid-deficiencies-a-focus-on-arginine-and-glutamine
#14
REVIEW
Claudia R Morris, Jill Hamilton-Reeves, Robert G Martindale, Menaka Sarav, Juan B Ochoa Gautier
Nonessential amino acids are synthesized de novo and therefore not diet dependent. In contrast, essential amino acids must be obtained through nutrition since they cannot be synthesized internally. Several nonessential amino acids may become essential under conditions of stress and catabolic states when the capacity of endogenous amino acid synthesis is exceeded. Arginine and glutamine are 2 such conditionally essential amino acids and are the focus of this review. Low arginine bioavailability plays a pivotal role in the pathogenesis of a growing number of varied diseases, including sickle cell disease, thalassemia, malaria, acute asthma, cystic fibrosis, pulmonary hypertension, cardiovascular disease, certain cancers, and trauma, among others...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28386305/a-fermented-whole-grain-prevents-lipopolysaccharides-induced-dysfunction-in-human-endothelial-progenitor-cells
#15
Laura Giusti, Morena Gabriele, Giuseppe Penno, Monia Garofolo, Vincenzo Longo, Stefano Del Prato, Daniela Lucchesi, Laura Pucci
Endogenous and exogenous signals derived by the gut microbiota such as lipopolysaccharides (LPS) orchestrate inflammatory responses contributing to development of the endothelial dysfunction associated with atherosclerosis in obesity, metabolic syndrome, and diabetes. Endothelial progenitor cells (EPCs), bone marrow derived stem cells, promote recovery of damaged endothelium playing a pivotal role in cardiovascular repair. Since healthy nutrition improves EPCs functions, we evaluated the effect of a fermented grain, Lisosan G (LG), on early EPCs exposed to LPS...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28367097/lyophilized-powder-of-catalpol-and-puerarin-protected-cerebral-vessels-from-ischemia-by-its-anti-apoptosis-on-endothelial-cells
#16
Yang Liu, Qing Tang, Siying Shao, Yi Chen, Weihai Chen, Xiaoyu Xu
Catalpol and puerarin are two monomers of Rehmannia glutinosa and Lobed Kudzuvine Root, which are two herbs commonly used together in ancient prescriptions of traditional Chinese medicine for cerebral ischemia. Our previous study shows that the lyophilized powder of the two monomers improved the outcome of cerebral ischemia excellently in rodents. However, if it protects vessels from ischemia is unknown. The present research studied the protection of lyophilized powder of catalpol and puerarin (CP) on endothelial cells and the relative mechanism in vivo and in vitro...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28359367/nutritional-regulation-of-coupling-factor-6-a-novel-vasoactive-and-proatherogenic-peptide
#17
REVIEW
Tomohiro Osanai, Kasumi Mikami, Maiko Kitajima, Mayumi Urushizaka, Kumiko Kawasaki, Toshiko Tomisawa, Chieko Itaki, Yuka Noto, Koji Magota, Hirofumi Tomita
High sodium, high glucose, and obesity are important risk factors for age-related diseases such as cardiovascular disease (CVDs), stroke, and cancer. Coupling factor 6 (CF6) is released from vascular endothelial cells and functions as a circulating peptide that inhibits prostacyclin and nitric oxide generation by intracellular acidosis. High glucose elevates CF6 by activation of protein kinase C and p38 mitogen-activated protein kinase, whereas CF6 causes type 2 diabetes mellitus, resulting in a high glucose vicious cycle...
May 2017: Nutrition
https://www.readbyqxmd.com/read/28294170/exploring-inter-organ-crosstalk-to-uncover-mechanisms-that-regulate-%C3%AE-cell-function-and-mass
#18
REVIEW
J Shirakawa, D F De Jesus, R N Kulkarni
Impaired β-cell function and insufficient β-cell mass compensation are twin pathogenic features that underlie type 2 diabetes (T2D). Current therapeutic strategies continue to evolve to improve treatment outcomes in different ethnic populations and include approaches to counter insulin resistance and improve β-cell function. Although the effects of insulin secretion on metabolic organs such as liver, skeletal muscle and adipose is directly relevant for improving glucose uptake and reduce hyperglycemia, the ability of pancreatic β-cells to crosstalk with multiple non-metabolic tissues is providing novel insights into potential opportunities for improving β-cell function and/or mass that could have beneficial effects in patients with diabetes...
March 15, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28228623/elucidation-of-mechanism-of-blood-brain-barrier-damage-for-prevention-and-treatment-of-vascular-dementia
#19
REVIEW
Masaki Ueno
It is well-known that the blood-brain barrier (BBB) plays significant roles in transporting intravascular substances into the brain. The BBB in cerebral capillaries essentially impedes the influx of intravascular compounds from the blood to the brain, while nutritive substances, such as glucose, can be selectively transported through several types of influx transporters in endothelial cells. In the choroid plexus, intravascular substances can invade the parenchyma as fenestrations exist in endothelial cells of capillaries...
March 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28114966/tgf-%C3%AE-1-induced-differentiation-of-shed-into-functional-smooth-muscle-cells
#20
Jian Guang Xu, Shao Yue Zhu, Boon Chin Heng, Waruna Lakmal Dissanayaka, Cheng Fei Zhang
BACKGROUND: Adequate vascularization is crucial for supplying nutrition and discharging metabolic waste in freshly transplanted tissue-engineered constructs. Obtaining the appropriate building blocks for vascular tissue engineering (i.e. endothelial and mural cells) is a challenging task for tissue neovascularization. Hence, we investigated whether stem cells from human exfoliated deciduous teeth (SHED) could be induced to differentiate into functional vascular smooth muscle cells (vSMCs)...
January 23, 2017: Stem Cell Research & Therapy
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