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https://www.readbyqxmd.com/read/29906511/experimental-proliferative-vitreoretinopathy-in-rabbits-by-delivery-of-bioactive-proteins-with-gelatin-microspheres
#1
Fumitaka Hirose, Junichi Kiryu, Yasuhiko Tabata, Hiroshi Tamura, Kunihiro Musashi, Noriaki Takase, Hideaki Usui, Soichiro Kuwayama, Aki Kato, Nagahisa Yoshimura, Yuichiro Ogura, Tsutomu Yasukawa
Proliferative vitreoretinopathy (PVR) is a challenging pathological condition, often causing failure of retinal detachment surgery. The purpose of this study was to evaluate the feasibility of a delivery system of bioactive proteins using anionic and cationic gelatin microspheres and to establish a new PVR model in rabbits by intraocular sustained delivery of basic fibroblast growth factor (bFGF) and interferon-beta (IFNβ). Anionic and cationic gelatin microspheres were prepared and immersed in bFGF and IFNβ solution, respectively, to yield a polyion complex between gelatin matrix and a bioactive protein...
June 12, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29901281/silk-nanofibrous-electrospun-scaffold-enhances-differentiation-of-embryonic-stem-like-cells-derived-from-testis-in-to-mature-neuron
#2
M Nazm Bojnordi, S Ebrahimi-Barough, E Vojoudi, H H Ghasemi
The scaffolds accompanied with stem cells have great potential for applications in neural tissue engineering. Fabrication of Nano fibrous scaffold similar to extracellular matrix is one of the applicable methods in neural tissue regeneration. The aim of this study was the fabrication of a silk Nano fibrous scaffold as a microenvironment for neural guiding differentiation of Embryonic stem like cells (ES Like cells) derived from testis toward neuron-like cells. ES Like derived from culturing of testicular cells in vitro, were seeded on Silk scaffolds and induced to neuronal phenotype using 4-/4± RA technique following culturing the cells in the neurobasal medium supplemented with 20 ng/ml bFGF,10 ng/ml EGF, B27 and N2 for 8-12 days...
June 14, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29897097/improved-tendon-healing-using-bfgf-bmp-12-and-tgf%C3%AE-1-in-a-rat-model
#3
M Majewski, P Heisterbach, C Jaquiéry, L Dürselen, A Todorov, I Martin, C H Evans, S A Müller
Several growth factors (GFs) are expressed as tendons heal, but it remains unknown whether their combined application enhances the healing process. This matter was addressed by applying a combination of basic fibroblast growth factor (bFGF), bone morphogenetic protein 12 (BMP-12) and transforming growth factor beta 1 (TGFβ1) in a rat Achilles tendon transection model. GFs were applied in one of the three following ways: i) direct application of all three factors at the time of surgery; ii) sequential, tiered percutaneous injection of individual factors immediately after surgery, 48 h and 96 h later; iii) load of all three factors onto a collagen sponge implanted at the time of surgery...
June 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29896285/construction-of-a-human-monoclonal-antibody-against-bfgf-for-suppression-of-nsclc
#4
Sheng Wang, Yiyang Qin, Zhongmin Wang, Junjian Xiang, Yu Zhang, Meng Xu, Baiyong Li, Yu Xia, Peng Zhang, Hong Wang
Compelling evidence implicates that overexpression of basic fibroblast growth factor (bFGF) and fibroblast growth factor receptor 1 (FGFR1) in non-small cell lung cancer (NSCLC) drives tumor progression, can serve as prognostic biomarkers or therapeutic targets for NSCLC patients. But at present, we still lack of effective drugs for bFGF. The preparation of monoclonal antibodies against bFGF or to understand its mechanism of action is urgently need. Previously, we used hybridoma technology to produce a murine anti-bFGF monoclonal antibody (E12)...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29895019/dual-delivery-of-bfgf-and-ngf-binding-coacervate-confers-neuroprotection-by-promoting-neuronal-proliferation
#5
Yanqing Wu, Zhouguang Wang, Pingtao Cai, Ting Jiang, Yiyang Li, Yuan Yuan, Rui Li, Sinan Khor, Yingfeng Lu, Jian Wang, Daqing Chen, Qiqiang Zeng, Ruisheng Zhong, Hongyu Zhang, Yuan Lin, Xiaokun Li, Jian Xiao
BACKGROUND/AIMS: Basic fibroblast growth factor (bFGF) and nerve growth factor (NGF) are essential for proper development, survival, growth, and maintenance of neurons in the central and peripheral nervous systems. However, because bFGF and NGF have short half-life and rapid diffusion rate, they have limited clinical efficacy. Thus, there is an urgent need to develop an effective delivery system to protect bFGF and NGF from proteolysis while maintaining their normal bioactivities. METHODS: To more efficiently deliver bFGF and NGF, we used a coacervate (synthesized with heparin and a biodegradable polycation at mass ratio of 500: 100)...
June 12, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29893031/human-primary-cd34-cells-transplantation-for-critical-limb-ischemia
#6
Weishuai Lian, Xiaoxiao Hu, Long Pan, Shilong Han, Chuanwu Cao, Zhongzhi Jia, Maoquan Li
BACKGROUND: The goal of this study was to characterize the properties of human CD34+ cells in culture and investigate the feasibility and efficacy of CD34+ transplantation in a mouse model of limb ischemia and in patients with no-option critical limb ischemia. METHODS: Human CD34+ cells isolated from peripheral blood and grown in culture for up to four passages stained positively for the surface markers CD34 and CD133 and showed high viability after cryopreservation and recovery...
June 11, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29876372/fibroblast-and-keratinocyte-gene-expression-following-exposure-to-the-extracts-of-holy-basil-plant-ocimum-tenuiflorum-malabar-nut-plant-justicia-adhatoda-and-emblic-myrobalan-plant-phyllanthus-emblica
#7
Takao Someya, Katsura Sano, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R G S Wijesekara
This data article provides gene expression profiles, determined by using real-time PCR, of fibroblasts and keratinocytes treated with 0.01% and 0.001% extracts of holy basil plant ( Ocimum tenuiflorum ), sri lankan local name "maduruthala", 0.1% and 0.01% extracts of malabar nut plant ( Justicia adhatoda ), sri lankan local name "adayhoda" and 0.003% and 0.001% extracts of emblic myrobalan plant ( Phyllanthus emblica ), sri lankan local name "nelli", harvested in Sri Lanka. For fibroblasts, the dataset includes expression profiles for genes encoding hyaluronan synthase 1 (HAS1), hyaluronan synthase 2 (HAS2), hyaluronidase-1 (HYAL1), hyaluronidase-2 (HYAL2), versican, aggrecan, CD44, collagen, type I, alpha 1 (COL1A1), collagen, type III, alpha 1 (COL3A1), collagen, type VII, alpha 1 (COL7A1), matrix metalloproteinase 1 (MMP1), acid ceramidase, basic fibroblast growth factor (bFGF), fibroblast growth factor-7 (FGF7), vascular endothelial growth factor (VEGF), interleukin-1 alpha (IL-1α), cyclooxygenase-2 (cox2), transforming growth factor beta (TGF-β), and aquaporin 3 (AQP3)...
April 2018: Data in Brief
https://www.readbyqxmd.com/read/29875657/anti-hyperplasia-effects-of-total-saponins-from-phytolaccae-radix-in-rats-with-mammary-gland-hyperplasia-via-inhibition-of-proliferation-and-induction-of-apoptosis
#8
Xiaoliang Li, Zhibin Wang, Yu Wang, Yanan Zhang, Xia Lei, Ping Xin, Xin Fu, Ning Gao, Yanping Sun, Yanhong Wang, Bingyou Yang, Qiuhong Wang, Haixue Kuang
Mammary gland hyperplasia (MGH) is a pathological condition that affects the majority of women at the child-bearing stage. The hormone and endocrinal therapy are typically used to treat MGH. Nevertheless, there are still some certain side effects accompanied with the benefits, which negatively affect the life quality of patients. Therefore, plant-derived agents that are effective against MGH development and with fewer side effects should be developed. The aim of this study was to investigate the protective effects and underlying mechanism of total saponins of Phytolaccae (TSP) against MGH in vivo ...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29874597/a-targeted-nanoplatform-co-delivering-chemotherapeutic-and-antiangiogenic-drugs-as-a-tool-to-reverse-multidrug-resistance-in-breast-cancer
#9
Fengchun Tian, Fatima Zohra Dahmani, Jianan Qiao, Jiang Ni, Hui Xiong, Tengfei Liu, Jianping Zhou, Jing Yao
Several obstacles are currently impeding the successful treatment of breast cancer, namely impaired drug accumulation into the tumor site, toxicity to normal cells and narrow therapeutic index of chemotherapy, multidrug resistance (MDR) and the metastatic spread of cancer cells through the blood and lymphatic vessels. In this regard, we designed a novel multifunctional nano-sized drug delivery system based on LyP-1 peptide-modified low-molecular-weight heparin-quercetin conjugate (PLQ). This nanosystem was developed for targeted co-delivery of multiple anticancer drugs to p32-overexpressing tumor cells and peritumoral lymphatic vessels, using LyP-1 peptide as active targeting ligand, with the aim to achieve a targeted combinatorial chemo/angiostatic therapy and MDR reversal...
June 3, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29870049/butylated-hydroxytoluene-induces-type-v-collagen-and-overexpression-of-remodeling-genes-proteins-in-experimental-lung-fibrosis
#10
Vanessa Martins, Walcy Rosolia Teodoro, Ana Paula Pereira Velosa, Priscila Andrade, Cecília Farhat, Alexandre Todorovic Fabro, Vera Luiza Capelozzi
Anomalous histoarchitecture with increased levels of type-V collagen (Col V) in lungs of human idiopathic pulmonary fibrosis (IPF) and bleomycin (BLM) airway-centered interstitial fibrosis suggest that this collagen can be a possible trigger involved in the pathogenesis of these diseases. Butylated hydroxytoluene (BHT) injury model revealed a distal involvement of lung parenchyma with significant endothelial injury and fibrotic response, contrasting with the BLM airway-centered insult. We undertook this study to analyze whether BHT alters distal airway/alveolar epithelial cells (AECs) and extracellular matrix (ECM) signaling involved in the initiation and progression of pulmonary fibrosis in a different pathway concerning overexpression of Col V...
June 5, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29864934/salidroside-protects-hypoxia-induced-injury-by-up-regulation-of-mir-210-in-rat-neural-stem-cells
#11
Rui Yan, Hua Xu, Xiaoxiang Fu
Neonatal brain hypoxia is a disease that affects the nervous system in children. Salidroside is a compound that has an anti-hypoxic effect, but the mechanism of salidroside in neonatal cerebral hypoxia is unclear. Hence, we investigated the regulatory effect and mechanism of salidroside on hypoxic-induced injury of neural stem cells (NSCs). NSCs derived from embryo 14 Sprague-Dawley rats were treated by hypoxia, followed by the treatment of 0.8 mM salidroside. The expression levels of miR-210 and BTG3 in NSCs were altered by transfection...
July 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29857900/functionalized-nanoliposomes-loaded-with-anti-survivin-and-anti-angiogenic-agents-to-enhance-the-activity-of-chemotherapy-against-melanoma-by-4-pronged-action
#12
Harshita Mishra, Pawan Kumar Mishra, Adam Ekielski, Zeenat Iqbal, Manu Jaggi, Sushama Talegaonkar
Melanoma is one of the most aggressive cancers which has very low response rate and survival rate. Melanoma cells are known to be inherently resistant to the chemotherapy which results in poor outcomes and even failure of the therapy. For this reason, a better understanding of underlying mechanism of melanoma pathogenesis and resistance is required, so that more efficient and novel therapeutic strategies can be developed. Survivin is a protein which is overexpressed in melanoma cells and is known to impart resistance to them against apoptosis...
July 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29850214/vascular-endothelial-growth-factor-basic-fibroblast-growth-factor-and-pigment-epithelium-derived-factor-expression-in-the-neovascular-iris-in-retinal-diseases
#13
Heng Miao, Xianru Hou, De-Kuang Hwang, Yong Tao
Objective: To determine the expression of cytokines in the iris of patients with neovascular glaucoma (NVG). Methods: Patients with NVG associated with proliferative diabetic retinopathy (PDR, group 1) or central retinal vein occlusion (CRVO, group 2) who had undergone surgical treatment were enrolled. Patients with primary open-angle glaucoma requiring surgical treatment were included in the control group (group 3). All iris specimens were obtained during trabeculectomy, 7 days after intravitreal injections of ranibizumab...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29847822/basic-fibroblast-growth-factor-influences-epidermal-homeostasis-of-living-skin-equivalents-through-affecting-fibroblast-phenotypes-and-functions
#14
Lujun Yang, Dangui Zhang, Hongjuan Wu, Sitian Xie, Mingjun Zhang, Bingna Zhang, Shijie Tang
AIMS: To elucidate the possible mechanisms of how basic fibroblast growth factor (bFGF) influences epidermal homeostasis in a living skin equivalent (LSE) model. METHODS: Several wound healing-related growth factors were analyzed at protein and mRNA levels for dermal fibroblasts of induced alpha-smooth muscle actin (α-SMA)-positive or α-SMA-negative phenotypes. During culturing an LSE model by seeding normal human keratinocytes on a fibroblast-populated type I collagen gel, bFGF or neutralizing antibody for keratinocyte growth factor (KGF) was added to investigate its effects on fibroblast phenotypes and, subsequently, epidermal homeostasis by histology and immunohistochemistry...
May 30, 2018: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29844613/metastatic-brain-tumors-disrupt-the-blood-brain-barrier-and-alter-lipid-metabolism-by-inhibiting-expression-of-the-endothelial-cell-fatty-acid-transporter-mfsd2a
#15
Shweta Tiwary, John E Morales, Sam C Kwiatkowski, Frederick F Lang, Ganesh Rao, Joseph H McCarty
Disruption of the blood-brain barrier (BBB) by cancer cells is linked to metastatic tumor initiation and progression; however, the pathways that drive these events remain poorly understood. Here, we have developed novel patient-derived xenograft (PDX) models of brain metastases that recapitulate pathological growth features found in original patient samples, thus allowing for analysis of BBB disruption by tumor cells. We report that the BBB is selectively disrupted in brain metastases, in part, via inhibition of the endothelial cell-expressed docosahexaenoic acid (DHA) transporter, major facilitator superfamily domain 2a (Mfsd2a)...
May 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29807443/targeting-vegf-vegfrs-pathway-in-the-antiangiogenic-treatment-of-human-cancers-by-traditional-chinese-medicine
#16
Cheng Zhang, Ning Wang, Hor-Yue Tan, Wei Guo, Sha Li, Yibin Feng
Bearing in mind the doctrine of tumor angiogenesis hypothesized by Folkman several decades ago, the fundamental strategy for alleviating numerous cancer indications may be the strengthening application of notable antiangiogenic therapies to inhibit metastasis-related tumor growth. Under physiological conditions, vascular sprouting is a relatively infrequent event unless when specifically stimulated by pathogenic factors that contribute to the accumulation of angiogenic activators such as the vascular endothelial growth factor (VEGF) family and basic fibroblast growth factor (bFGF)...
May 1, 2018: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/29802904/typhae-pollen-polysaccharides-ameliorate-diabetic-retinal-injury-in-a-streptozotocin-induced-diabetic-rat-model
#17
Xiaoqin Lei, Yunyun Zhou, Cuicui Ren, Xi Chen, Rongguo Shang, Jianyu He, Jianwei Dou
ETHNOPHARMACOLOGICAL RELEVANCE: According to ancient traditional Chinese medicine, Typhae Pollen (TP) is commonly used to treat fundus haemorrhage because it improves blood circulation. AIMS OF THE STUDY: This study evaluated the role of the main TP component, polysaccharides (TPP), on diabetic retinopathy (DR) and its possible mechanisms of inhibiting inflammation and improving blood circulation. MATERIALS AND METHODS: After successful establishment of a diabetic rat model, TPP was administered to diabetic rats for treatment, and the rats were sacrificed at 12 weeks...
May 23, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29801153/the-level-of-inflammatory-tear-cytokines-is-elevated-in-congenital-aniridia-and-associated-with-meibomian-gland-dysfunction
#18
Erlend C S Landsend, Øygunn A Utheim, Hilde R Pedersen, Hans Christian D Aass, Neil Lagali, Darlene A Dartt, Rigmor C Baraas, Tor P Utheim
Purpose: To investigate the tear cytokine profile in congenital aniridia, and correlate cytokine levels with ophthalmologic findings. Methods: We examined 35 patients with aniridia and 21 healthy controls. Tear fluid was collected with Schirmer I test and capillary tubes from each eye, and the concentration of 27 inflammatory cytokines determined using multiplex bead assay. Eyes of all participants were examined with tests for dry eye disease, including evaluation of meibomian glands (meibography)...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29790692/serum-concentrations-of-vegf-and-bfgf-in-the-course-of-propranolol-therapy-of-infantile-hemangioma-in-children-are-we-closer-to-understand-the-mechanism-of-action-of-propranolol-on-hemangiomas
#19
Lidia Babiak-Choroszczak, Kaja Giżewska-Kacprzak, Elżbieta Gawrych, Katarzyna Fischer, Anna Walecka, Lidia Puchalska-Niedbał, Justyna Rajewska-Majchrzak, Maciej Bagłaj
BACKGROUND: Propranolol has become the treatment of choice for infantile hemangiomas (IH). Neither the pathogenesis of IH nor the mechanism of action of propranolol on them are well understood. Possible explanations include the inhibition of angiogenesis by decreasing vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF), induction of vascular endothelial cell apoptosis and vasoconstriction. OBJECTIVES: The aim of the study was to assess serum concentrations of VEGF and bFGF in the course of propranolol therapy of IH in children, and to assess their clinical implications...
May 16, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29786870/the-association-between-local-atherosclerosis-of-the-prostatic-artery-and-benign-prostatic-enlargement-in-humans-putative-mechanism-of-chronic-ischemia-for-prostatic-enlargement
#20
Nobuhiro Haga, Hidenori Akaihata, Junya Hata, Ken Aikawa, Tomohiko Yanagida, Kanako Matsuoka, Tomoyuki Koguchi, Seiji Hoshi, Soichiro Ogawa, Masao Kataoka, Yuichi Sato, Kei Ishibashi, Osamu Suzuki, Yuko Hashimoto, Yoshiyuki Kojima
BACKGROUND: To investigate the possible pathogenesis of the benign prostatic enlargement (BPE) induced by local atherosclerosis, the association between local atherosclerosis and prostatic enlargement was investigated, and molecular biological analyses were performed using human prostatectomy specimens. METHODS: A total of 69 consecutive patients who underwent robot-assisted radical prostatectomy (RARP) participated in this prospective study. To evaluate actual local atherosclerosis, prostatic arteries were removed during RARP...
May 21, 2018: Prostate
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