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https://www.readbyqxmd.com/read/30315717/in-situ-blood-vessel-regeneration-using-neuropeptide-substance-p-conjugated-small-diameter-vascular-grafts
#1
Muhammad Shafiq, Lina Wang, Dengke Zhi, Qiuying Zhang, Kai Wang, Lianyong Wang, Dong-Hwee Kim, Deling Kong, Soo Hyun Kim
In situ blood vessel regeneration through host stem/progenitor cell mobilization may hold great promise for vascular reconstruction. Neuropeptide substance P (SP) has been shown to accelerate tissue repair by endogenous cell mobilization and recruitment. This study was aimed to evaluate the vascular regeneration potential of SP and heparin co-tethered vascular grafts. Polycaprolactone (PCL), PCL/SP-conjugated poly(L-lactide-co-ε-caprolactone) (PLCL-SP) (SP), and PCL/PLCL-SP/heparin-conjugated PLCL (Hep/SP) vascular grafts were implanted as rat abdominal aorta substitutes for up to 2 weeks and 4 weeks...
October 13, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/30315407/immunological-features-and-functional-analysis-of-anti-cfh-autoantibodies-in-patients-with-atypical-hemolytic-uremic-syndrome
#2
Wei-Yi Guo, Di Song, Xiao-Rong Liu, Zhi Chen, Hui-Jie Xiao, Jie Ding, Shu-Zhen Sun, Hong-Yan Liu, Su-Xia Wang, Feng Yu, Ming-Hui Zhao
OBJECTIVE: Atypical hemolytic uremic syndrome (aHUS) is associated with defective complement regulation. Anti-complement factor H (CFH) antibodies were thought to participate in the pathogenesis of aHUS. The aim of this study was to address the functions and properties of CFH autoantibodies in a Chinese Han cohort of aHUS patients. METHODS: Thirty-six anti-CFH antibody-positive aHUS patients at the acute phase of the disease were involved in this study. Clinical data of the patients were collected...
October 12, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/30311500/effect-of-polydeoxyribonucleotide-on-angiogenesis-and-wound-healing-in-an-in-vitro-model-of-osteoarthritis
#3
Ahreum Baek, Yoon Kim, Jin Woo Lee, Sang Chul Lee, Sung-Rae Cho
Osteoarthritis (OA) is degenerative disease, leading to pain and functional disability. It is reported that polydeoxyribonucleotide (PDRN) is a suitable therapy for OA. However, the therapeutic mechanisms of PDRN in OA are not fully understood. To investigate the effect of PDRN in an in vitro model of OA, interleukin (IL)-1β or phosphate-buffered saline (PBS) was used to treat a human chondrocytic cell line in hypoxic conditions for 24 h (IL-1β group or control group). PDRN was then used to treat IL-1β group cells for 24 h (PDRN group)...
October 12, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/30309728/mmp-9-upregulation-is-attenuated-by-the-monoclonal-tlr2-antagonist-t2-5-after-oxygen-glucose-deprivation-and-reoxygenation-in-rat-brain-microvascular-endothelial-cells
#4
Hongyan Zhu, Rongrong Dai, Hao Fu, Qiang Meng
BACKGROUND: Blood-brain barrier (BBB) disruption plays a key role in the pathophysiology of acute ischemic stroke. Matrix metalloproteinases-2/9 (MMP-2/9) have been shown to participate in the disruption of the BBB and hemorrhagic transformation after cerebral ischemia. Toll-like receptor 2 (TLR2) may also be correlated with endothelial cell injury during ischemia-reperfusion events. However, the correlation between MMP-2/9 and TLR2 on endothelial cells after ischemia has not yet been evaluated...
October 8, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/30308493/high-glucose-promotes-epithelial-mesenchymal-transition-of-uterus-endometrial-cancer-cells-by-increasing-er-glut4-mediated-vegf-secretion
#5
Chun-Jie Gu, Feng Xie, Bing Zhang, Hui-Li Yang, Jiao Cheng, Yin-Yan He, Xiao-Yong Zhu, Da-Jin Li, Ming-Qing Li
BACKGROUND/AIMS: Uterus endometrial cancer (UEC) is the common malignancy among gynecologic cancers, and most of them are type I estrogen-dependent UEC. Diabetes is well-known risk factor for the development of UEC. However, the underlying link between high glucose (HG) and the estrogen receptor in UEC remains unclear. Epithelial-mesenchymal transition (EMT) has also been shown to occur during the initiation of metastasis in cancer progression. The aim of this study was to determine the relationships and roles of HG, estrogen receptor and EMT in the growth and migration of UEC...
October 11, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/30303856/advances-in-the-treatment-of-gastric-cancer
#6
David H Ilson
PURPOSE OF REVIEW: To review the recent literature regarding treatment of gastric cancer. RECENT FINDINGS: Addition of postoperative radiation therapy to perioperative chemotherapy offers no survival benefit. Fluoropyrimidines, in particular 5-fluorouracil (5-FU), are the backbone for gastric cancer chemotherapy. S-1, an oral prodrug of 5-FU, has become the mainstay for gastric cancer chemotherapy in Japan. In a Japanese adjuvant chemotherapy trial, addition of docetaxel to standard S-1 chemotherapy improved disease-free survival; this regimen will become their new standard for adjuvant therapy...
November 2018: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/30301839/lpa4-mediated-vascular-network-formation-increases-the-efficacy-of-anti-pd-1-therapy-against-brain-tumors
#7
Daisuke Eino, Yohei Tsukada, Hisamichi Naito, Yonehiro Kanemura, Tomohiro Iba, Taku Wakabayashi, Fumitaka Muramatsu, Hiroyasu Kidoya, Hideyuki Arita, Naoki Kagawa, Yasunori Fujimoto, Kazuhiro Takara, Haruhiko Kishima, Nobuyuki Takakura
The structure and function of tumor blood vessels profoundly impacts the tumor microenvironment. Signals mediated through the lysophosphatidic acid receptor 4 (LPA4) promote vascular network formation to restore normal vascular barrier function in subcutaneous tumors and thus improve drug delivery. However, the characteristics of the vasculature vary by organ and tumor types, and how drug delivery and leukocyte trafficking are affected by modification of vascular function by LPA in different cancers is unclear...
October 9, 2018: Cancer Research
https://www.readbyqxmd.com/read/30299240/antinuclear-antibodies-in-the-general-population-positive-association-with-inflammatory-and-vascular-biomarkers-but-not-traditional-cardiovascular-risk-factors
#8
Elizabeth Blair Solow, Wanpen Vongpatanasin, Brian Skaug, David R Karp, Colby Ayers, James A de Lemos
OBJECTIVES: Patients with clinically evident autoimmune disease are at increased risk for premature cardiovascular disease (CVD). Markers of serological autoimmunity such as anti-nuclear antibodies (ANA) are found in approximately 25% of the general population. Yet, the vast majority will not develop clinical autoimmune disease. Serological autoimmunity is a risk factor for CVD death in individuals without autoimmune disease; however, the mechanisms mediating this excess CVD risk have not been elucidated...
September 17, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/30298670/intraocular-cytokine-profile-and-autoimmune-reactions-in-retinitis-pigmentosa-age-related-macular-degeneration-glaucoma-and-cataract
#9
Josianne C Ten Berge, Zainab Fazil, Ingeborgh van den Born, Roger C W Wolfs, Marco W J Schreurs, Wim A Dik, Aniki Rothova
PURPOSE: To analyse intraocular cytokine levels and prevalence of intraocular antiretinal antibodies (ARAs) in patients with retinitis pigmentosa (RP), age-related macular degeneration (AMD), glaucoma and cataract, and correlate the results to clinical manifestations. METHODS: We collected intraocular fluid samples from patients with RP (n = 25), AMD (n = 12), glaucoma (n = 28) and cataract (n = 22), and serum samples paired with the intraocular fluids from patients with RP (N = 7) and cataract (n = 10)...
October 8, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/30296364/an-asymmetrical-dual-coating-on-the-stent-prepared-by-ultrasonic-atomization
#10
Jingjing Wang, Yuzhen Ren, Yuhua Huang, Ruolin Du, Yadong Xi, Tieying Yin, Yazhou Wang, Dechuan Zhang, Jinju Chen, Guixue Wang
This study aims to design an asymmetric dual coating (ADC) on the stent by ultrasonic atomization to solve the problem of delayed endothelialization and late or very late stent thrombosis which caused by drug eluting stent (DES) with symmetric coating. Chitosan-loaded monoclonal platelet glycoprotein IIIa receptor antibody SZ-21 coating (CSC) was sprayed on inner surface of stents, and outer surface was sprayed CSC and poly(lactic-co-glycolic acid) (PLGA) loaded with docetaxel (DTX) coating (PDC). The coated surface was uniform without aggregation and no shedding phenomenon either before or after stent expanded...
October 8, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/30295643/angiopoietin-2-exacerbates-cardiac-hypoxia-and-inflammation-after-myocardial-infarction
#11
Seung-Jun Lee, Choong-Kun Lee, Seok Kang, Intae Park, Yoo Hyung Kim, Seo Ki Kim, Seon Pyo Hong, Hosung Bae, Yulong He, Yoshiaki Kubota, Gou Young Koh
Emerging evidence indicates that angiopoietin-2 (Angpt2), a well-recognized vascular destabilizing factor, is a biomarker of poor outcome in ischemic heart disease. However, its precise role in postischemic cardiovascular remodeling is poorly understood. Here, we show that Angpt2 plays multifaceted roles in the exacerbation of cardiac hypoxia and inflammation after myocardial ischemia. Angpt2 was highly expressed in endothelial cells at the infarct border zone after myocardial infarction (MI) or ischemia/reperfusion injury in mice...
October 8, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/30290624/eculizumab-in-a-pregnant-patient-with-laboratory-onset-of-catastrophic-antiphospholipid-syndrome-a-case-report
#12
Patrizia Rovere-Querini, Valentina Canti, Roberta Erra, Esperia Bianchi, Giorgio Slaviero, Armando D'Angelo, Susanna Rosa, Massimo Candiani, Maria Teresa Castiglioni
RATIONALE: Hypercoagulability and pregnancy morbidity are hallmarks of the antiphospholipid syndrome (APS). Catastrophic antiphospholipid syndrome (CAPS) is a potentially life-threatening omplication of APS, with widespread acute thrombotic microangiopathy (TMA) that can be precipitated by pregnancy and delivery and result in multiorgan damage. Unrestrained activation of the complement cascade is involved, favoring endothelial activation, tissue factor expression by leukocytes, and platelet aggregation...
October 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30289072/probable-mechanisms-involved-in-immunotoxin-mediated-capillary-leak-syndrome-cls-and-recently-developed-countering-strategies
#13
B Darvishi, L Farahmand, N Jalili, K Majidzadeh-A
Antibody-toxin fused agents or immunotoxins, are a newly engineered class of cytotoxic agents consisting of a bacterial or plant toxin moiety hooked up either to a monoclonal antibody or a specific growth factor. Nevertheless, acquiring a full potency in clinic is mostly restricted due to the Capillary leak syndrome (CLS), a serious immune provoked, life-threatening side effect, subsequent to the endothelial damage, resulting in fluid escape from the bloodstream into tissues including lungs, muscle and brain, developing organ failure and eventually death...
October 4, 2018: Current Molecular Medicine
https://www.readbyqxmd.com/read/30287259/an-elisa-for-quantifying-gpihbp1-autoantibodies-and-making-a-diagnosis-of-the-gpihbp1-autoantibody-syndrome
#14
Kazuya Miyashita, Isamu Fukamachi, Tetsuo Machida, Kiyomi Nakajima, Stephen G Young, Masami Murakami, Anne P Beigneux, Katsuyuki Nakajima
BACKGROUND: Autoantibodies against GPIHBP1, the endothelial cell transporter for lipoprotein lipase (LPL), cause severe hypertriglyceridemia ("GPIHBP1 autoantibody syndrome"). Affected patients have low serum GPIHBP1 and LPL levels. We report the development of a sensitive and specific ELISA, suitable for routine clinical use, to detect GPIHBP1 autoantibodies in serum and plasma. METHODS: Serum and plasma samples were added to wells of an ELISA plate that had been coated with recombinant human GPIHBP1...
October 1, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/30286855/1-year-clinical-outcomes-of-all-comer-patients-treated-with-the-dual-therapy-combo-stent-primary-results-of-the-combo-collaboration
#15
Robbert J de Winter, Jaya Chandrasekhar, Deborah N Kalkman, Melissa B Aquino, Pier Woudstra, Marcel A Beijk, Samantha Sartori, Usman Baber, Jan G Tijssen, Karel T Koch, George D Dangas, Antonio Colombo, Roxana Mehran
OBJECTIVES: The aim of this study was to evaluate 1-year clinical safety and efficacy of the dual-therapy COMBO stent in a large, all-comers patient-level pooled cohort. BACKGROUND: The COMBO stent (OrbusNeich Medical, Fort Lauderdale, Florida) is a novel stent with abluminal sirolimus elution from a biodegradable polymer and a luminal pro-healing anti-CD34+ antibody layer, which attracts circulating endothelial progenitor cells. These endothelial progenitor cells can quickly mature into normal endothelium, providing rapid endothelialization...
October 8, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/30283071/impaired-tumor-growth-and-angiogenesis-in-mice-heterozygous-for-vegfr2-flk1
#16
Sunday S Oladipupo, Ashraf Ul Kabir, Craig Smith, Kyunghee Choi, David M Ornitz
VEGF signaling through its tyrosine kinase receptor, VEGFR2 (FLK1), is critical for tumor angiogenesis. Previous studies have identified a critical gene dosage effect of VegfA in embryonic development and vessel homeostasis, neovascularization, and tumor growth, and potent inhibitors of VEGFR2 have been used to treat a variety of cancers. Inhibition of FGFR signaling has also been considered as an antiangiogenic approach to treat a variety of cancers. Inhibition of VEGFR2 with neutralizing antibodies or with pharmacological inhibitors of the VEGFR tyrosine kinase domain has at least short-term efficacy with some cancers; however, also affects vessel homeostasis, leading to adverse complications...
October 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30281870/a-subset-of-paracrine-factors-as-efficient-biomarkers-for-predicting-vascular-regenerative-efficacy-of-mesenchymal-stromal-stem-cells
#17
Hyun-Kyung Kim, Seul-Gi Lee, Seung-Woo Lee, Bae Jun Oh, Jae Hyeon Kim, Jeong A Kim, Guisera Lee, Jae-Deog Jang, Young Ae Joe
Mesenchymal stromal/stem cells (MSCs) have been developed as a promising source for cell-based therapies of ischemic disease. However, there are some hurdles in their clinical application such as poor cell engraftment and inconsistent stem cell potency. In this study, we sought to find biomarkers for predicting potency of MSCs for proangiogenic therapy to improve their beneficial effects. Large variations were observed in proangiogenic factor secretion profiles of conditioned media derived from nine different donor-derived Wharton's jelly (WJ)-derived MSCs and 8 factors among 55 angiogenesis-related factors were secreted at considerable levels...
October 3, 2018: Stem Cells
https://www.readbyqxmd.com/read/30279483/angiogenic-properties-of-leukocyte-and-platelet-rich-fibrin
#18
Jessica Ratajczak, Tim Vangansewinkel, Pascal Gervois, Greet Merckx, Petra Hilkens, Marc Quirynen, Ivo Lambrichts, Annelies Bronckaers
Leukocyte- and Platelet-Rich Fibrin (L-PRF) is an autologous platelet concentrate, consisting of a fibrin matrix enriched with platelets, leukocytes and a plethora of cytokines and growth factors. Since L-PRF is produced bedside from whole blood without the use of an anti-coagulant, it is becoming a popular adjuvant in regenerative medicine. While other types of platelet concentrates have been described to stimulate blood vessel formation, little is known about the angiogenic capacities of L-PRF. Therefore, this study aimed to fully characterize the angiogenic potential of L-PRF...
October 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30278915/del1-protects-against-chondrocyte-apoptosis-through-integrin-binding
#19
Zhen Wang, Tatiana Boyko, Misha C Tran, Marie LaRussa, Namrata Bhatia, Vania Rashidi, Michael T Longaker, George P Yang
BACKGROUND: Osteoarthritis (OA) is a debilitating disease process, affecting mobility and overall health of millions. Current treatment is for symptomatic relief and discovery of approaches to halt or reverse damage is imperative. Deletion of developmental endothelial locus-1 (Del1) has been shown to increase severity of OA in knockout mice. We examined the intracellular pathways involved in the ability of DEL1 to protect chondrocytes from apoptosis and anoikis and hypothesized that it functioned via integrin signaling...
November 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/30274295/paths-for-improving-bevacizumab-available-in-2018-the-adzt-regimen-for-better-glioblastoma-treatment
#20
Richard E Kast
During glioblastoma treatment, the pharmaceutical monoclonal antibody to vascular endothelial growth factor A, bevacizumab, has improved the quality of life and delayed progression for several months, but has not (or only marginally) prolonged overall survival. In 2017, several dramatic research papers appeared that are crucial to our understanding of glioblastoma vis-a-vis the mode of action of bevacizumab. As a consequence of these papers, a new, potentially more effective treatment protocol can be built around bevacizumab...
September 29, 2018: Medical Sciences: Open Access Journal
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