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https://www.readbyqxmd.com/read/29677368/in-vivo-characterization-of-spontaneous-retinal-neovascularization-in-the-mouse-eye-by-multifunctional-optical-coherence-tomography
#1
Marco Augustin, Matthias Wechdorn, Ulrike Pfeiffenberger, Tanja Himmel, Stanislava Fialová, René M Werkmeister, Christoph K Hitzenberger, Martin Glösmann, Bernhard Baumann
Purpose: To investigate the early development of spontaneous retinal neovascularization in the murine retina by a multifunctional optical coherence tomography approach. To characterize involved tissue changes in vivo and describe structural and functional changes over time. Methods: A multifunctional optical coherence tomography (OCT) system providing 3-fold contrast comprising reflectivity, polarization sensitivity, and OCT angiography (OCTA) was utilized to image very-low-density lipoprotein receptor (VLDLR) knockout mice...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29677356/volume-rendered-projection-resolved-oct-angiography-3d-lesion-complexity-is-associated-with-therapy-response-in-wet-age-related-macular-degeneration
#2
Peter L Nesper, Brian T Soetikno, Alison D Treister, Amani A Fawzi
Purpose: To explore whether quantitative three-dimensional (3D) analysis of choroidal neovascularization (CNV) using projection-resolved optical coherence tomography angiography (PR-OCTA) is associated with treatment response in neovascular age-related macular degeneration (nAMD). Methods: Retrospective, cross-sectional study of 51 eyes of 49 patients undergoing individualized anti-VEGF therapy for nAMD. Patients were classified as "good" or "poor" responders, requiring injections at less or more frequently than 6-week intervals, respectively...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29675549/snai1-an-endothelial-mesenchymal-transition-transcription-factor-promotes-the-early-phase-of-ocular-neovascularization
#3
Jia-Xing Sun, Tian-Fang Chang, Man-Hong Li, Li-Juan Sun, Xian-Chun Yan, Zi-Yan Yang, Yuan Liu, Wen-Qin Xu, Yang Lv, Jing-Bo Su, Liang Liang, Hua Han, Guo-Rui Dou, Yu-Sheng Wang
Ocular neovascularization is a comprehensive process involved in retinal vascular development and several blinding diseases such as age-related macular degeneration and retinopathy of prematurity, with vascular endothelial growth factor (VEGF) regarded as the master regulator. However, the qualified effect of anti-VEGF therapy reveals that the underlying mechanisms are still not clearly identified. To initialize angiogenesis, endothelial cells undergo a phenotype switching to generate highly migratory and invasive cells...
April 19, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29675384/effect-of-anti-vegf-treatment-on-retinopathy-of-prematurity-in-zone-ii-stage-3
#4
Xiu-Mei Yang, Yue-Xiang Zhao, Zong-Hua Wang, Lu Liu
AIM: To evaluate the effect of intravitreal ranibizumab injection for retinopathy of prematurity (ROP) in Zone II Stage 3+ . METHODS: Data was collected for ROP patients with Zone II Stage 3+ who received intravitreal ranibizumab injections between October 2014 and Janu-ary 2017 at the Department of Ophthalmology in our hospital. No prior laser or other intravitreal treatment was done. Prior to the intervention and at each follow-up visit, fundus examination was performed...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675373/comparison-of-the-effects-of-intravitreal-bevacizumab-and-dexamethasone-in-experimental-posterior-penetrating-eye-injury
#5
Ayse Oner, Nisa Kahraman, Saim Ozdamar, Esra Balcioglu
AIM: To compare the effects of intravitreal anti-vascular endothelial growth factor (VEGF) and dexamethasone in an experimental rabbit model of posterior penetrating ocular injury. METHODS: Thirty white New Zealand rabbits were included in the study. A posterior penetrating ocular injury was performed at the superotemporal quadrant. They were randomly divided into three groups. The rabbits in group 1 received intravitreal dexamethasone, in group 2 they received intravitreal bevacizumab and those in group 3 received intravitreal physiological saline solution in both eyes...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675102/synergistic-antitumor-effects-of-cmet-inhibitor-in-combination-with-anti-vegf-in-colorectal-cancer-patient-derived-xenograft-models
#6
Xiangheng Chen, Zhonghai Guan, Jun Lu, Haohao Wang, Zhongkun Zuo, Fei Ye, Jiangsheng Huang, Lisong Teng
cMet signaling pathway is involved in the resistance to anti-VEGF therapy and cMet overexpression is associated with tumor progression and poor prognosis. In this study, the expression of cMet in 146 Chinese colorectal cancer (CRC) patients was examined by immunohistochemistry staining. Our data demonstrated that cMet overexpression rate was 42.5% (62/146) and cMet overexpression was closely correlated with distant metastasis of CRC. Using CRC patient-derived xenograft (PDX) mouse models we investigated antitumor activity of a novel selective cMet inhibitor volitinib alone or in combination with anti-VEGF inhibitor apatinib in vivo ...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29675018/contribution-to-tumor-angiogenesis-from-innate-immune-cells-within-the-tumor-microenvironment-implications-for-immunotherapy
#7
REVIEW
Adriana Albini, Antonino Bruno, Douglas M Noonan, Lorenzo Mortara
The critical role of angiogenesis in promoting tumor growth and metastasis is strongly established. However, tumors show considerable variation in angiogenic characteristics and in their sensitivity to antiangiogenic therapy. Tumor angiogenesis involves not only cancer cells but also various tumor-associated leukocytes (TALs) and stromal cells. TALs produce chemokines, cytokines, proteases, structural proteins, and microvescicles. Vascular endothelial growth factor (VEGF) and inflammatory chemokines are not only major proangiogenic factors but are also immune modulators, which increase angiogenesis and lead to immune suppression...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29672933/anti-angiogenic-efficacy-of-aflibercept-and-bevacizumab-in-primary-oral-squamous-cell-carcinoma-cells
#8
Meysam Ganjibakhsh, Roshanak Monshizadeh, Ahmad Nasimian, Pouyan Aminishakib, Parvaneh Farzaneh, Sahar Tavakoli Shiraji, Ata Garajei, Sedigheh Rahrotaban, Fereshteh Baghaei, Neda Sadat Gohari
BACKGROUND: In recent decades, anti-angiogenic treatment strategy has been well-described in cancer treatment. The anti-angiogenic activity of both Bevacizumab and Aflibercept have been researched on ten previously established primary Oral Squamous Cell Carcinoma (OSCC) cells of an Iranian population with different levels of purity, in an attempt to find the most effective anti-angiogenic targeted drug. METHODS: To investigate and compare the effect of Bevacizumab and Aflibercept on Vascular Endothelial Growth Factor (VEGF) secretion of ten primary OSCC cells, cell proliferation and viability were assessed by ELISA and MTT assays...
April 19, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29671760/a-low-molecular-weight-protein-from-the-sea-anemone-anemonia-viridis-with-an-anti-angiogenic-activity
#9
Erwann P Loret, José Luis, Christopher Nuccio, Claude Villard, Pascal Mansuelle, Régine Lebrun, Pierre Henri Villard
Sea anemones are a remarkable source of active principles due to a decentralized venom system. New blood vessel growth or angiogenesis is a very promising target against cancer, but the few available antiangiogenic compounds have limited efficacy. In this study, a protein fraction, purified from tentacles of Anemonia viridis , was able to limit endothelial cells proliferation and angiogenesis at low concentration (14 nM). Protein sequences were determined with Edman degradation and mass spectrometry in source decay and revealed homologies with Blood Depressing Substance (BDS) sea anemones...
April 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29670840/investigating-effect-of-rapamycin-and-metformin-on-angiogenesis-in-hepatocellular-carcinoma-cell-line
#10
Mandana Rastegar, Haji-Amin Marjani, Yaghoub Yazdani, Majid Shahbazi, Masoud Golalipour, Touraj Farazmandfar
Purpose: Human hepatocellular carcinoma is one of the most common causes of death in the world. Metformin and rapamycin may decrease the expression of VEGF protein and subsequently angiogenesis. The purpose of this study was to evaluate the effect of these two drugs on expression of VEGF protein and the cell proliferation in the hepatocellular carcinoma cell line (ATCC HB-8065). Methods: HepG2 was cultured in RPMI-1640 medium at 37°C for 48h as a pre-culture and then treated by different concentrations of metformin (0, 5, 10 and 20 mM) and rapamycin (0, 5, 10 and 20 nM) at different times (12, 24 and 48 h)...
March 2018: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29670046/resistance-to-anti-angiogenic-therapy-in-cancer-alterations-to-anti-vegf-pathway
#11
REVIEW
Yoshiro Itatani, Kenji Kawada, Takamasa Yamamoto, Yoshiharu Sakai
Anti-angiogenic therapy is one of the promising strategies for many types of solid cancers. Bevacizumab (Avastin), a recombinant humanized monoclonal antibody of vascular endothelial growth factor (VEGF) A, was approved for the first time as an anti-angiogenic drug for the treatment of metastatic colorectal cancer (CRC) by the Food and Drug Administration (FDA) in 2004. In addition, the other VEGF pathway inhibitors including small molecule tyrosine kinase inhibitors (sunitinib, sorafenib, and pazopanib), a soluble VEGF decoy receptor (aflibercept), and a humanized monoclonal antibody of VEGF receptor 2 (VEGFR2) (ramucirumab) have been approved for cancer therapy...
April 18, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29669378/spontaneous-regression-of-wet-age-related-macular-degeneration-after-termination-of-anti-vegf-injections
#12
Andrea Bräutigam, Heinrich Gerding
No abstract text is available yet for this article.
April 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29669176/anti-vascular-endothelial-growth-factor-combined-with-intravitreal-steroids-for-diabetic-macular-oedema
#13
REVIEW
Hemal Mehta, Charles Hennings, Mark C Gillies, Vuong Nguyen, Anna Campain, Samantha Fraser-Bell
BACKGROUND: The combination of steroid and anti-vascular endothelial growth factor (VEGF) intravitreal therapeutic agents could potentially have synergistic effects for treating diabetic macular oedema (DMO). On the one hand, if combined treatment is more effective than monotherapy, there would be significant implications for improving patient outcomes. Conversely, if there is no added benefit of combination therapy, then people could be potentially exposed to unnecessary local or systemic side effects...
April 18, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29666587/cardioprotective-effects-of-qishenyiqi-dripping-pills-on-transverse-aortic-constriction-induced-heart-failure-in-mice
#14
Guoran Ruan, Haojin Ren, Chi Zhang, Xiaogang Zhu, Chao Xu, Liyue Wang
QiShenYiQi dripping pills (QSYQ), a traditional Chinese medicine, are commonly used to treat coronary heart disease, and QSYQ was recently approved as a complementary treatment for ischemic heart failure in China. However, only few studies reported on whether QSYQ exerts a protective effect on heart failure induced by pressure overload. In this study, we explored the role of QSYQ in a mouse model of heart failure induced by transverse aortic constriction (TAC). Twenty-eight C57BL/6J mice were divided into four groups: Sham + NS group, Sham + QSYQ group, TAC + NS group, and TAC + QSYQ group...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29666026/cervical-cancer-state-of-the-science-from-angiogenesis-blockade-to-checkpoint-inhibition
#15
REVIEW
Lindsey E Minion, Krishnansu S Tewari
Vascular endothelial growth factor (VEGF) has emerged as a therapeutic target in several malignancies, including cervical cancer. Chemotherapy doublets combined with the fully humanized monoclonal antibody, bevacizumab, now constitute first-line therapy for women struggling with recurrent/metastatic cervical carcinoma. Regulatory approval for this indication was based on the phase III randomized trial, GOG 240, which demonstrated a statistically significant and clinically meaningful improvement in overall survival when bevacizumab was added to chemotherapy: 17...
March 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29665643/evaluation-of-the-effects-of-iranian-propolis-on-the-severity-of-post-operational-induced-peritoneal-adhesion-in-rats
#16
Vahid Reza Askari, Vafa Baradaran Rahimi, Parvin Zamani, Narges Fereydouni, Pouria Rahmanian-Devin, Amir Hossein Sahebkar, Hassan Rakhshandeh
BACKGROUND: Peritoneal adhesion is a major complication of surgery that can lead to serious problems such as bowel obstruction, pain, infertility and even mortality. Propolis is a honey bee product with anti-inflammatory and anti-oxidant activities that could potentially protect against adhesive surgical complications. METHODS: Forty 8-weeks-old rats (275 ± 25 g) were divided into five groups: normal group without any surgical procedure, and experimental groups treated with normal saline, 50 mg/kg, 100 mg/kg and 200 mg/kg of propolis...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29665322/tumour-cell-expression-of-interleukin-6-receptor-%C3%AE-is-associated-with-response-rates-in-patients-treated-with-sunitinib-for-metastatic-clear-cell-renal-cell-carcinoma
#17
Martin Pilskog, Leif Bostad, Reidunn J Edelmann, Lars A Akslen, Christian Beisland, Oddbjørn Straume
Clear cell renal cell carcinoma (ccRCC) is the most common type of renal cell carcinoma, and anti-angiogenic treatment is currently first line therapy for metastatic ccRCC (mccRCC). Response rates and duration of response show considerable variation, and adverse events have a major influence on patient quality of life. The need for predictive biomarkers to select responders to receptor tyrosine kinase inhibitors upfront is urgent. We investigated the predictive value of immunohistochemical biomarkers associated with angiogenesis and systemic inflammation in mccRCC...
April 2018: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/29664983/longitudinal-quantification-of-retinal-nonperfusion-in-the-macula-of-eyes-with-retinal-vein-occlusion-receiving-anti-vegf-therapy-secondary-analysis-of-the-wave-randomized-trial
#18
William C Ou, Shaun I R Lampen, Charles C Wykoff
BACKGROUND AND OBJECTIVE: Longitudinal quantification of retinal nonperfusion (RNP) in eyes with retinal vein occlusion (RVO) undergoing anti-vascular endothelial growth factor therapy. PATIENTS AND METHODS: Thirty eyes with ischemic RVO were randomized to ranibizumab (Lucentis; Genentech, South San Francisco, CA) (monotherapy) or ranibizumab plus peripheral laser (combination therapy) in a 12-month, prospective trial. RNP on fluorescein angiography was quantified within the macula through 12 months of follow-up...
April 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29664241/surgical-management-of-coats-disease
#19
Shunji Kusaka
Coats disease is a sporadic, chronic retinal vascular disorder with telangiectatic and aneurysmal retinal vessels, with retinal exudation and retinal detachment in severe cases. Various treatment modalities have been used, including laser therapy, cryotherapy, anti‒vascular endothelial growth factor (VEGF) therapy, and surgery. Anti-VEGF therapy seems to be effective in reducing exudative changes and is often combined with other treatment modalities. For severe cases with exudative retinal detachment, external drainage of subretinal fluid with or without vitrectomy is commonly performed, combined with laser therapy and/or cryotherapy...
March 27, 2018: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29664206/pedf-vegf-ratio-plays-a-crucial-role-in-the-spontaneous-regression-of-infant-hemangioma-and-the-therapeutic-effect-of-propranolol
#20
Liuqing Zhu, Jinye Xie, Zhenyin Liu, Zhijian Huang, Mao Huang, Haofan Yin, Weiwei Qi, Zhonghan Yang, Ti Zhou, Guoquan Gao, Jing Zhang, Xia Yang
Infantile hemangioma (IH) is a benign tumor that is formed by aberrant angiogenesis and that undergoes spontaneous regression over time. Propranolol, the first-line therapy for IH, inhibits angiogenesis by downregulating the activation of the VEGF pathway, which is hyperactivated in IH. However, this treatment is reportedly ineffective for 10% of tumors, and 19% of patients relapse after propranolol treatment. Both pro-angiogenic and anti-angiogenic factors regulate angiogenesis, and PEDF is the most effective endogenous anti-angiogenic factor...
April 17, 2018: Cancer Science
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