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https://www.readbyqxmd.com/read/28922771/a-specific-role-of-iron-in-promoting-meristematic-cell-division-during-adventitious-root-formation
#1
Alexander Hilo, Fahimeh Shahinnia, Uwe Druege, Philipp Franken, Michael Melzer, Twan Rutten, Nicolaus von Wirén, Mohammad-Reza Hajirezaei
Adventitious root (AR) formation is characterized by a sequence of physiological and morphological processes and determined by external factors, including mineral nutrition, the impacts of which remain largely elusive. Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe) and a promotive action of ammonium (NH4+). The optimal application period for these nutrients corresponded to early division of meristematic cells in the rooting zone and coincided with increased transcript levels of mitotic cyclins...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28921619/alcohol-reduces-arterial-remodeling-by-inhibiting-sonic-hedgehog-stimulated-sca1-progenitor-stem-cell-expansion
#2
Emma Fitzpatrick, Xu Han, Weimin Liu, Eoin Corcoran, Denise Burtenshaw, Maryam Alshamrani, David Morrow, Jay-Christian Helt, Paul A Cahill, Eileen M Redmond
BACKGROUND: Cell and molecular mechanisms mediating the cardiovascular effects of alcohol are not fully understood. Our aim was to determine the effect of moderate Ethanol (EtOH) on Sonic Hedgehog (SHh) signaling in regulating possible Sca1(+) progenitor stem cell involvement during pathologic arterial remodeling. METHODS AND RESULTS: Partial ligation or sham-operation of the left carotid artery was performed in transgenic Sca1-eGFP mice gavaged with or without 'daily moderate' EtOH...
September 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28921429/strategies-to-suspension-serum-free-adaptation-of-mammalian-cell-lines-for-recombinant-glycoprotein-production
#3
Angelo Luis Caron, Rafael Tagé Biaggio, Kamilla Swiech
Serum-free suspension cultures are preferably required for recombinant protein production due to its readiness in upstream/downstream processing and scale-up, therefore increasing process productivity and competitiveness. This type of culture replaces traditional cell culturing as the presence of animal-derived components may introduce lot-a-lot variability and adventitious pathogens to the process. However, adapting cells to serum-free conditions is challenging, time-consuming, and cell line and medium dependent...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28912792/genotypic-variation-in-yield-yield-components-root-morphology-and-architecture-in-soybean-in-relation-to-water-and-phosphorus-supply
#4
Jin He, Yi Jin, Yan-Lei Du, Tao Wang, Neil C Turner, Ru-Ping Yang, Kadambot H M Siddique, Feng-Min Li
Water shortage and low phosphorus (P) availability limit yields in soybean. Roots play important roles in water-limited and P-deficient environment, but the underlying mechanisms are largely unknown. In this study we determined the responses of four soybean [Glycine max (L.) Merr.] genotypes [Huandsedadou (HD), Bailudou (BLD), Jindou 21 (J21), and Zhonghuang 30 (ZH)] to three P levels [applied 0 (P0), 60 (P60), and 120 (P120) mg P kg(-1) dry soil to the upper 0.4 m of the soil profile] and two water treatment [well-watered (WW) and water-stressed (WS)] with special reference to root morphology and architecture, we compared yield and its components, root morphology and root architecture to find out which variety and/or what kind of root architecture had high grain yield under P and drought stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28912007/adventitial-adipogenic-degeneration-is-an-unidentified-contributor-to-aortic-wall-weakening-in-the-abdominal-aortic-aneurysm
#5
Stefan A Doderer, Gabor Gäbel, Vivianne B C Kokje, Bernd H Northoff, Lesca M Holdt, Jaap F Hamming, Jan H N Lindeman
OBJECTIVE: The processes driving human abdominal aortic aneurysm (AAA) progression are not fully understood. Although antiinflammatory and proteolytic strategies effectively quench aneurysm progression in preclinical models, so far all clinical interventions failed. These observations hint at an incomplete understanding of the processes involved in AAA progression and rupture. Interestingly, strong clinical and molecular associations exist between popliteal artery aneurysms (PAAs) and AAAs; however, PAAs have an extremely low propensity to rupture...
September 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28911964/adventitial-cystic-disease-complicated-and-uncomplicated
#6
Jonathan Lezotte, Quynh P Le, Charles Shanley, Sachinder Hans
Three cases of adventitial cystic disease of popliteal artery are reported; one complicated with associated thrombosis of the popliteal artery and two uncomplicated. Operative management and follow-up is described.
September 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28910144/ask1-inhibition-halts-disease-progression-in-preclinical-models-of-pulmonary-arterial-hypertension
#7
Grant R Budas, Mario Boehm, Baktybek Kojonazarov, Gayathri Viswanathan, Xia Tian, Swathi Veeroju, Tatyana Novoyatleva, Friedrich Grimminger, Ford Hinojosa-Kirschenbaum, Hossein A Ghofrani, Norbert Weissmann, Werner Seeger, John T Liles, Ralph T Schermuly
RATIONALE Progression of pulmonary arterial hypertension (PAH) is associated with pathologic remodeling of the pulmonary vasculature and the right ventricle (RV). Oxidative stress drives the remodeling process through activation of mitogenactivated protein kinases (MAPKs) which stimulate apoptosis, inflammation and fibrosis. OBJECTIVES We investigated whether pharmacological inhibition of the redoxsensitive apical MAPK Apoptosis Signal-Regulating Kinase 1 (ASK1) can halt the progression of pulmonary vascular and RV remodeling...
September 14, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28903823/results-of-survey-regarding-prevalence-of-adventitial-infections-in-mice-and-rats-at-biomedical-research-facilities
#8
James O Marx, Diane J Gaertner, Abigail L Smith
Control of rodent adventitial infections in biomedical research facilities is of extreme importance in assuring both animal welfare and high-quality research results. Sixty-three U.S. institutions participated in a survey reporting the methods used to detect and control these infections and the prevalence of outbreaks from 1 January 2014 through 31 December 2015. These results were then compared with the results of 2 similar surveys published in 1998 and 2008. The results of the current survey demonstrated that the rate of viral outbreaks in mouse colonies was decreasing, particularly in barrier facilities, whereas the prevalence of parasitic outbreaks has remained constant...
September 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28901303/role-of-collagen-triple-helix-repeat-containing-1-in-tumor-and-inflammatory-diseases
#9
REVIEW
Qian Wu, Qingrui Yang, Hongsheng Sun
Initially, collagen triple helix repeat containing-1 (CTHRC1) is expressed mainly in adventitial fibroblasts and neointimal smooth muscle cells of balloon-injured vessels, and increases cell migration, promotes tissue repair in response to injury. A variety of studies demonstrated that over-expression of CTHRC1 in solid tumors results in enhancement of migration and invasion of tumor cells, and is associated with decreased overall survival and disease-free survival. CTHRC1 expression is elevated in hepatitis B virus-infected patients and highly correlated with hepatocellular carcinoma progression as well...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28898997/angiotensin-ii-infusion-into-apoe-mice-a-model-for-aortic-dissection-rather-than-abdominal-aortic-aneurysm
#10
Bram Trachet, Lydia Aslanidou, Alessandra Piersigilli, Rodrigo A Fraga-Silva, Jessica Sordet-Dessimoz, Pablo Villanueva-Perez, Marco F M Stampanoni, Nikolaos Stergiopulos, Patrick Segers
Aims: Angiotensin II-infused ApoE-/- mice are a popular mouse model for preclinical aneurysm research. Here, we provide insight in the often-reported but seldom-explained variability in shape of dissecting aneurysms in these mice. Methods and results: N = 45 excised aortas were scanned ex vivo with phase-contrast X-ray tomographic microscopy. Micro-ruptures were detected near the ostium of celiac and mesenteric arteries in 8/11 mice that were sacrificed after 3 days of angiotensin II-infusion...
August 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28894055/-igg4-related-periaortitis-manifested-as-contained-rupture-of-penetrating-atherosclerotic-ulcer
#11
Takeshi Someya, Shogo Sakurai, Toshizumi Shirai
We report a case of IgG4-related periaortitis of the descending aorta manifested as a contained rupture of penetrating atherosclerotic ulcer(PAU). A 67-year-old male was admitted to our hospital complaining about chest pain. Computed tomography(CT) and magnetic resonance imaging revealed PAU with extravasation of the descending aorta and thickening of surrounding tissues. Fluorodeoxyglucose-positron emission tomography (FDG-PET) CT demonstrated abnormal accumulation of FDG at the thickening sites, and serum IgG4 value was abnormally high...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28888114/carotid-stiffness-extra-media-thickness-and-visceral-adiposity-in-young-adults
#12
Wesley K Lefferts, Susan D Sperry, Randall S Jorgensen, Ari G Kasprowicz, Michael R Skilton, Arturo Figueroa, Kevin S Heffernan
BACKGROUND AND AIMS: Carotid extra-media thickness (EMT) encompasses arterial adventitia and perivascular adipose tissue (PAT). Adventitial remodeling and PAT may contribute independently to functional (stiffness) and structural (remodeling) changes in artery wall properties. Visceral adiposity may contribute to PAT, thereby affecting artery stiffness. We investigated the relationships between carotid artery stiffness, EMT, and visceral adiposity in young, healthy individuals. METHODS: 135 healthy males (20 ± 2 yr, body mass index [BMI] 24...
September 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28887249/chronic-nonatherosclerotic-occlusive-popliteal-artery-disease
#13
Jun Gyo Gwon, Yong-Jae Kwon, Young Jin Han, Yong-Pil Cho, Tae-Won Kwon
BACKGROUND: The outcomes of revascularization of nonatherosclerotic occlusive popliteal artery disease are unknown. Therefore, the objective of this study was to analyze the outcomes of recanalization of nonatherosclerotic occlusive popliteal artery disease, the results of which would be useful in creating surgical strategies for such cases. METHODS: From January 2000 to December 2015, a total of 22 patients with nonatherosclerotic occlusive popliteal artery disease underwent open surgical repair...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28861424/cystic-adventitial-disease-case-series-and-review-of-literature
#14
Shuo Li, Brian N King, Noel Velasco, Yogesh Kumar, Nishant Gupta
Cystic adventitial disease (CAD) is a rare vascular disorder that involves the arteries and rarely the veins, most commonly found in the popliteal artery of male patients. Etiology of CAD is uncertain and currently without a consensus agreement. Clinically, the most common presenting symptom is claudication. Diagnosis requires a strong clinical suspicion in patients with intermittent claudication, but without other risk factors for atherosclerotic disease. Angiography, ultrasound (US), computed tomography (CT) and magnetic resonance imaging (MRI) can all be used for diagnosis...
August 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28859600/two-cases-of-popliteal-cystic-adventitial-disease-treated-with-excision-and-primary-bypass-graft-a-review-of-the-literature
#15
Mairead M Hennessy, Gerald McGreal, Gavin C O'Brien
Cystic adventitial disease (CAD) is a rare vascular pathology which predominantly affects peripheral vessels of young otherwise healthy males. Much debate exists regarding its exact etiology. It is characterized by a collection of mucinous material within the adventitial wall layer of the affected vessel, resulting in arterial stenosis and rapidly progressive calf claudication. Treatment is primarily surgical, although radiological interventions have been reported. Its rarity makes evidence-based surgical or radiological management difficult...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28845525/rgs3-inhibits-tgf-%C3%AE-1-smad-signalling-in-adventitial-fibroblasts
#16
Fang Xu, Ying Liu, Lei Shi, Hongjing Cai, Wei Liu, Yejia Hu, Yuling Li, Wendan Yuan
Recent evidence suggests that adventitial fibroblasts (AFs) are crucially implicated in atherosclerosis. However, the mechanisms by which AFs are dysfunctional and contribute to atherosclerosis remain unclear. This study aimed to investigate the role of regulator of G-protein signalling 3 (RGS3) in the regulation of AFs using apoE knockout mouse as the model. Pathological changes in aortic arteries of apoE knockout mice fed with hyperlipid diet were examined by Movat staining. The expression of RGS3, α-SMA, TGF-β1, Smad2, and Smad3 in the adventitia was detected by immunohistochemistry...
August 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28840683/-characterization-of-tissue-expression-of-ginsenoside-biosynthetic-gene-expression-in-panax-ginseng
#17
Juan Liu, Rui-Feng Ji, Tong Chen, Yuan Yuan, Juan Guo, Ying-Ping Wang, Wen-Yuan Gao, Lu-Qi Huang
The study is aimed to characterize the tissue expression of 10 key ginsenoside biosynthetic genes using bioinformatics method and real-time quantitative PCR. Heatmap and cluster analysis of 10 ginsenoside biosynthetic genes were performed in four-year-old Jilin ginseng. Using real-time quantitative PCR, the expression correlation of 10 key genes involved in ginsenoside biosynthesis was analyzed in different organs of four-year-old Jilin ginseng including, tissue culture seedling and adventitious root. Pearson correlation was used to analyze the relation between those 10 key genes involved in ginsenoside biosynthesis...
July 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28840053/effect-of-adventitial-dissection-of-superficial-temporal-artery-on-the-outcome-of-superficial-temporal-artery-middle-cerebral-artery-bypass-in-moyamoya-disease
#18
Xin Li, Zheng Huang, Ming-Xing Wu, Dong Zhang
Superficial temporal artery-middle cerebral artery (STA-MCA) has been used for the treatment of occlusive cerebrovascular disease including moyamoya disease. The effect of STA-MCA bypass depends not only on the patency of anastomosis, but also on integrity and functional capacity of the donor artery. In the present prospective study, we investigated the effect of extensive stripping STA adventitia and fasciae on hemodynamic function in STA-MCA bypass of moyamoya disease patients. Twenty patients (n=8 in control group, n=12 in stripping group) of moyamoya disease were subjected to STA-MCA end-to-side direct anastomosis...
July 2017: Aging and Disease
https://www.readbyqxmd.com/read/28830332/hypersensitivity-reactions-to-obinutuzumab-in-cynomolgus-monkeys-and-relevance-to-humans
#19
Elisabeth Husar, Maria Solonets, Olaf Kuhlmann, Eginhard Schick, Hanna Piper-Lepoutre, Thomas Singer, Gaurav Tyagi
Obinutuzumab (GA101, Gazyva™, Gazyvaro®, F. Hoffmann-La Roche AG, Basel, Switzerland) is a humanized, glycoengineered type II antibody targeted against CD20. The preclinical safety evaluation required to support clinical development and marketing authorization of obinutuzumab included repeat-dose toxicity studies in cynomolgus monkeys for up to 6-month dosing with a 9-month recovery period. Results from those studies showed decreases in circulating B cells and corresponding B-cell depletion in lymphoid tissues, consistent with the desired pharmacology of obinutuzumab...
July 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28826890/galectin-3-mediates-pulmonary-vascular-remodeling-in-hypoxia-induced-pulmonary-arterial-hypertension
#20
Hui Luo, Bin Liu, Lin Zhao, Jingni He, Tangzhiming Li, Lihuang Zha, Xiaohui Li, Qiangqiang Qi, Yuwei Liu, Zaixin Yu
Pulmonary vascular adventitia serves as a key regulator of pulmonary vascular remodeling in the pathogenesis of pulmonary arterial hypertension (PAH). Excessive proliferation and differentiation of pulmonary adventitial fibroblasts (PAFs) are proven to be crucial in the pathogenesis of PAH. Galectin-3 (Gal-3) is known as a key fibroblasts activating factor which is involved in the fibrogenesis of several diseases, such as pulmonary fibrosis, vascular fibrosis, and heart failure. Therefore, we seek to investigate the potential role of Gal-3 in regulating PAF cells in the pathogenesis of PAH...
July 28, 2017: Journal of the American Society of Hypertension: JASH
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