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https://www.readbyqxmd.com/read/29786849/isolation-and-characterization-of-wheat-derived-nonspecific-lipid-transfer-protein-2-nsltp2
#1
Sara Bosi, Jessica Fiori, Giovanni Dinelli, Neil Rigby, Emanuela Leoncini, Cecilia Prata, Valeria Bregola, Ilaria Marotti, Roberto Gotti, Marina Naldi, Luca Massaccesi, Marco Malaguti, Paul Kroon, Silvana Hrelia
Numerous studies support the protective role of bioactive peptides against cardiovascular diseases. Cereals represent the primary source of carbohydrates, but they also contain substantial amounts of proteins, therefore representing a potential dietary source of bioactive peptides with nutraceutical activities. The analysis of wheat extracts purified by chromatographic techniques by means of HPLC-UV/nanoLC-nanoESI-QTOF allowed the identification of a signal of about 7 kDa which, following data base searches, was ascribed to a nonspecific lipid-transfer protein (nsLTP) type 2 from Triticum aestivum (sequence coverage of 92%)...
May 22, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29786785/methods-to-study-angiogenesis-in-a-mouse-model-of-prostate-cancer
#2
Ana-Rita Pedrosa, Alexandre Trindade, António Duarte
Angiogenesis is one important hallmark of cancer progression which explains the relevance of developing methods to efficiently analyze the neo-angiogenic process. In this report we make use of the transgenic adenocarcinoma of the murine prostate (TRAMP) model, considered a good model for studying clinical prostate cancer progression, to describe in detail the methods used to study angiogenesis in this type of solid tumor development. In this report we provide step-by-step procedures on the basis of previous work in our laboratory for: the mouse urogenital sinus (UGS) collection; microdissection of the prostate; preparation of the prostatic samples for immunofluorescence (to analyze vascular density, morphology, maturation, functionality, hypoxia, and others); preparation of prostatic samples to histopathological analysis and/or immunohistochemistry; and endothelial and vascular mural cell sorting and isolation by fluorescent associated cell sorting (FACS) to further analysis (mRNA, protein, or other) or to maintain in culture...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29786783/a-xenograft-model-for-venous-malformation
#3
Jillian Goines, Xian Li, Yuqi Cai, Paula Mobberley-Schuman, Megan Metcalf, Steven J Fishman, Denise M Adams, Adrienne M Hammill, Elisa Boscolo
Vascular malformations are defects caused by the abnormal growth of the vasculature. Among them, venous malformation (VM) is an anomaly characterized by slow-flow vascular lesions with abnormally shaped veins, typically in sponge-like configuration. VMs can expand over years causing disfigurement, obstruction of vital structures, thrombosis, bleeding, and pain. Treatments have been very limited and primarily based on supportive care, compression garments, sclerotherapy, and/or surgical resection. Sirolimus treatment has recently shown efficacy in some patients with complicated vascular anomalies, including VMs...
May 21, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29786782/preclinical-impact-of-high-dose-intermittent-antiangiogenic-tyrosine-kinase-inhibitor-pazopanib-in-intrinsically-resistant-tumor-models
#4
Elaine Reguera-Nuñez, Shan Man, Ping Xu, Robert S Kerbel
Antiangiogenic tyrosine kinase inhibitors (TKIs) target vascular endothelial growth factor receptors and other receptor tyrosine kinases. As a result of toxicity, the clinical failures or the modest benefits associated with antiangiogenic TKI therapy may be related in some cases to suboptimal drug dosing and scheduling, thereby facilitating resistance. Most antiangiogenic TKIs, including pazopanib, are administered on a continuous daily basis. Here, instead, we evaluated the impact of increasing the dose and administering the drug intermittently...
May 21, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29786752/overexpression-of-mir%C3%A2-17%C3%A2-5p-protects-against-high-glucose%C3%A2-induced-endothelial-cell-injury-by-targeting-e2f1%C3%A2-mediated-suppression-of-autophagy-and-promotion-of-apoptosis
#5
Yifeng Yuan, Xue Li, Maoquan Li
E2 promoter binding factor 1 (E2F1) has been reported to have an important regulatory role in cell survival during hyperglycemic conditions; however, the mechanisms remain to be fully elucidated. Bioinformatics analyses have suggested that microRNA (miR)‑17‑5p targets the 3'untranslated region (3'UTR) of E2F1. The aim of the present study was to characterize the protective effect of miR‑17‑5p/E2F1 on human umbilical vein endothelial cells (HUVECs) under high glucose (HG) conditions, to confirm the regulatory effect of miR‑17‑5p on E2F1/AMP‑activated protein kinase α2 (AMPKα2)‑mediated apoptosis and E2F1/mammalian target of rapamycin complex 1 (mTORC1)‑mediated autophagy...
May 21, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786744/mir%C3%A2-133b-regulates-proliferation-and-apoptosis-in-high%C3%A2-glucose%C3%A2-induced-human-retinal-endothelial-cells-by-targeting-ras-homolog-family-member-a
#6
Jun Yao, Jihong Wang, Yong Yao, Kelei Wang, Qianqian Zhou, Ying Tang
The aim of the present study was to investigate the role of microRNA (miR)‑133b in high‑glucose‑induced human retinal endothelial cells (hRECs), particularly regarding its potential targeting of ras homolog family member A (RhoA). To establish the high‑glucose‑induced diabetic retinopathy (DR) model, hRECs were cultured in high‑glucose medium for 1, 2 and 3 days. An Annexin allophycocyanin (APC)/7‑aminoactinomycin D (7‑AAD) staining assay was performed to measure the apoptosis of hRECs. Next, the cells were transfected with miR‑133b inhibitors or mimics, and the cell proliferation and apoptosis were measured by MTT and Annexin‑APC/7‑AAD staining assays, respectively...
May 18, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786640/vitamin-d-in-vascular-calcification-a-double-edged-sword
#7
REVIEW
Jeffrey Wang, Jimmy J Zhou, Graham R Robertson, Vincent W Lee
Vascular calcification (VC) as a manifestation of perturbed mineral balance, is associated with aging, diabetes and kidney dysfunction, as well as poorer patient outcomes. Due to the current limited understanding of the pathophysiology of vascular calcification, the development of effective preventative and therapeutic strategies remains a significant clinical challenge. Recent evidence suggests that traditional risk factors for cardiovascular disease, such as left ventricular hypertrophy and dyslipidaemia, fail to account for clinical observations of vascular calcification...
May 22, 2018: Nutrients
https://www.readbyqxmd.com/read/29786607/pre-set-extrusion-bioprinting-for-multiscale-heterogeneous-tissue-structure-fabrication
#8
Donggu Kang, Geunseon Ahn, Donghwan Kim, Hyun-Wook Kang, Seokhwan Yun, Won-Soo Yun, Jin-Hyung Shim, Songwan Jin
Recent advances in three-dimensional (3D) bioprinting technology have led to various attempts in fabricating human tissue-like structures. However, current bioprinting technologies have limitations for creating native tissue-like structures. To resolve these issues, we developed a new pre-set extrusion bioprinting technique that can create heterogeneous, multicellular, and multimaterial structures simultaneously. The key to this ability lies in the use of a precursor cartridge that can stably preserve a multimaterial with a pre-defined configuration that can be simply embedded in a syringe-based printer head...
May 22, 2018: Biofabrication
https://www.readbyqxmd.com/read/29786602/microfluidic-system-for-modelling-3d-tumour-invasion-into-surrounding-stroma-and-drug-screening
#9
Zhichang Du, Shengli Mi, Xiaoman Yi, Yuanyuan Xu, Wei Sun
Tumour invasion into the surrounding stroma is a critical step in metastasis, and it is necessary to clarify the role of microenvironmental factors in tumour invasion. We present a microfluidic system that simulated and controlled multi-factors of the tumour microenvironment for three-dimensional (3D) assessment of tumour invasion into the stroma. The simultaneous, precise and continuous arrangement of two 3D matrices was visualised to observe the migration of cancer cell populations or single cells by transfecting cells with a fluorescent protein...
May 22, 2018: Biofabrication
https://www.readbyqxmd.com/read/29786574/the-increase-of-efficiency-of-treatment-in-patients-with-non-stable-angina-pectoris-with-use-of-nitrogen-oxide-donator-wzrost-skuteczno%C3%A5-ci-leczenia-chorych-z-niestabiln%C3%A4-d%C3%A5-awic%C3%A4-piersiow%C3%A4-przy-pomocy-donor%C3%A3-w-tlenku-azotu
#10
Yevheniya Kh Zaremba, Olha V Zaremba, Nazar R Fedchyshyn, Victoria I Tkachenko, Oleh O Kapustynskyy
OBJECTIVE: Introction: One of the leading pathogenetic factors of CVD is a violation of the function of the endothelium of the vessels, which leads to endothelial dysfunction. The aіm: Increasing the efficiency of treatment of patients with NSAP based on the study of the dynamics of clinical picture, blood parametres, CRP, indices of endothelium dependent vasodilatation of the brachial artery with the use of arginine hydrochloride. PATIENTS AND METHODS: Materials and methods: The 45 patients with non-stable angina pectoris (NSAP), who were in inpatient treatment in the cardiological department of the Clinical city hospital of emergency care in Lviv, were examined...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786510/biochemical-markers-of-hypertension-prehypertension
#11
L Turgunova, B Koichubekov, A Turmuhambetova, M Sorokinam, Y E Laryushina, I Korshukov, A Shalygina, B Baidildina
OBJECTIVE: There are insufficient researches aimed at evaluating biochemical markers of mechanisms of formation of AH and lesion of target organs in hypertension and prehypertension. The aim of that research was to study the level of endothelial dysfunction markers and damage to the cardiovascular system in hypertension and prehypertension. PATIENTS AND METHODS: A cross-sectional study was performed among 938 people aged 18 to 65 years. All respondents were surveyed, blood pressure measured, for glucose, cholesterol, interleukin-6, sFAS, LIGHT, hFABP, NT-ProBNP and an Endocan concentrations were tested...
May 18, 2018: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29786451/annexin-a2-is-a-robo4-ligand-that-modulates-arf6-activation-associated-cerebral-trans-endothelial-permeability
#12
Wenlu Li, Zhigang Chen, Jing Yuan, Zhanyang Yu, Chongjie Cheng, Qiuchen Zhao, Lena Huang, Katherine A Hajjar, Zhong Chen, Eng H Lo, Haibin Dai, Xiaoying Wang
Blood-brain barrier (BBB) disruption in neurological disorders remains an intractable problem with limited therapeutic options. Here, we investigate whether the endothelial cell membrane protein annexin A2 (ANXA2) may play a role in reducing trans-endothelial permeability and maintaining cerebrovascular integrity after injury. Compared with wild-type mice, the expression of cerebral endothelial junctional proteins was reduced in E15.5 and adult ANXA2 knockout mice, along with increased leakage of small molecule tracers...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29786109/engulfment-of-platelets-delays-endothelial-cell-aging-via-girdin-and-its-phosphorylation
#13
Yong Lan, Yongjun Li, Dajun Li, Peng Li, Jiyang Wang, Yongpeng Diao, Guodong Ye, Yangfang Li
Endothelial cells are critical in angiogenesis and maintain the homeostasis of the blood‑brain barrier (BBB). Platelets (PLTs) are essential in vascular biology, including angiogenesis. The present study aimed to investigate the effect of PLTs on the aging of endothelial cells. Human brain microvascular endothelial cells (HBMECs) and human astrocytes were co‑cultured to mimic the BBB. Transmission electron microscopy was used to observe the engulfment of PLTs. Confocal microscopy was used to observe the co‑localization of PLTs, girders of actin filament (girdin) and phosphorylated (p‑)girdin...
May 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786104/correlation-between-the-expression-of-il%C3%A2-18-and-deep-venous-thrombosis
#14
Guangdi Li, Rudan Zhou, Xueling Zhao, Riguang Liu, Chuan Ye
The present study aimed to investigate the effect of the expression of interleukin (IL)‑18 and related markers on deep venous thrombosis (DVT) to examine their correlation. Sprague‑Dawley rats of different models were established and were randomly assigned into three groups. The expression of IL‑18, nuclear factor (NF)‑κB and von Willebrand factor (vWF) were detected in blood samples. The inferior vena cava (IVC) was ligated to establish the DVT model. Rat IL‑18 overexpression and inhibition vectors were constructed...
May 16, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786069/ve-cadherin-promotes-vasculogenic-mimicry-by-modulating-kaiso-dependent-gene-expression
#15
Daniel Delgado-Bellido, Mónica Fernández-Cortés, María Isabel Rodríguez, Santiago Serrano-Sáenz, Arkaitz Carracedo, Angel Garcia-Diaz, F Javier Oliver
Aberrant extra-vascular expression of VE-cadherin (VEC) has been observed in metastasis associated with vasculogenic mimicry (VM); however, the ultimate reason why non-endothelial VEC favors the acquisition of this phenotype is not established. In this study, we show that human malignant melanoma cells have a constitutively high expression of phoshoVEC (pVEC) at Y658; pVEC is a target of focal adhesion kinase (FAK) and forms a complex with p120-catenin and the transcriptional repressor kaiso in the nucleus...
May 21, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29786005/a-microinvasive-technique-for-management-of-corneal-edema-secondary-to-glaucoma-drainage-device-tube-corneal-touch
#16
Harsh Kumar, Avnindra Gupta, Viney Gupta
We present a case of tube endothelial touch where a suture technique for repositioning of the Ahmed glaucoma valve was performed. Advantage of this technique is that it is minimally invasive and anterior chamber stability is maintained during the procedure.
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785996/phacoemulsification-with-single-pass-four-throw-pupilloplasty-and-pre-descemet-s-endothelial-keratoplasty-for-management-of-cosmetic-iris-implant-complication
#17
Priya Narang, Keiki Mehta, Amar Agarwal
Placement of an anterior chamber iris implant for cosmetic reasons has been associated with development of various complications. Even after the implant has been explanted from the eye, it leaves a trail of after effects that necessitate surgical management. We describe a technique that comprises of performing phacoemulsification with single-pass four-throw pupilloplasty and a pre-Descemet's endothelial keratoplasty procedure for this eye with cosmetic iris implant complication.
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785885/endothelial-dysfunction-as-predictor-of-angina-recurrence-after-successful-percutaneous-coronary-intervention-using-second-generation-drug-eluting-stents
#18
Rocco A Montone, Giampaolo Niccoli, Federico Vergni, Vincenzo Vetrugno, Michele Russo, Fabio Mangiacapra, Francesco Fracassi, Italo Porto, Antonio M Leone, Francesco Burzotta, Domenico D'Amario, Cristina Aurigemma, Carlo Trani, Gaetano A Lanza, Filippo Crea
Background The role of endothelial dysfunction in predicting angina recurrence after percutaneous coronary intervention is unknown. Design We assessed the role of peripheral endothelial dysfunction measured by reactive-hyperaemia peripheral-artery tonometry (RH-PAT) in predicting recurrence of angina after percutaneous coronary intervention. Methods We enrolled consecutive patients undergoing percutaneous coronary intervention with second-generation drug-eluting stents. RH-PAT was measured at discharge. The endpoint was repeated coronary angiography for angina recurrence and/or evidence of myocardial ischaemia at follow-up...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29785785/metabolism-within-the-tumor-microenvironment-and-its-implication-on-cancer-progression-an-ongoing-therapeutic-target
#19
REVIEW
Ma Carmen Ocaña, Beatriz Martínez-Poveda, Ana R Quesada, Miguel Ángel Medina
Since reprogramming energy metabolism is considered a new hallmark of cancer, tumor metabolism is again in the spotlight of cancer research. Many studies have been carried out and many possible therapies have been developed in the last years. However, tumor cells are not alone. A series of extracellular components and stromal cells, such as endothelial cells, cancer-associated fibroblasts, tumor-associated macrophages, and tumor-infiltrating T cells, surround tumor cells in the so-called tumor microenvironment (TME)...
May 22, 2018: Medicinal Research Reviews
https://www.readbyqxmd.com/read/29785578/transport-of-the-pituitary-adenylate-cyclase-activating-polypeptide-across-the-blood-brain-barrier-implications-for-migraine
#20
Faisal Mohammad Amin, Henrik Winther Schytz
BACKGROUND: Pituitary adenylate cyclase-activating polypeptide (PACAP) is widely distributed in the nervous system and is involved in migraine pathophysiology. Understanding the function of the blood-brain barrier (BBB) in relation to PACAP is important to the understand the mechanisms behind PACAP-induced migraine attacks, but also to develop antimigraine drugs targeting the PACAP receptors Here, we aim to review the transport ability of PACAP across the BBB. METHODS: We performed a systematic literature search on PubMed to identify studies reporting original data on PACAP and BBB...
May 21, 2018: Journal of Headache and Pain
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