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https://www.readbyqxmd.com/read/28440420/wound-healing-effect-of-an-astragalus%C3%A2-membranaceus-polysaccharide-and-its-mechanism
#1
Bingjiang Zhao, Xuanfen Zhang, Wei Han, Ju Cheng, Yonghong Qin
In the present study, a novel polysaccharide, APS2-1, was isolated and purified from Astragalus membranaceus using DEAE-cellulose and Sephadex G-100 chromatography. The effect of APS2‑1 on the promotion of wound healing was evaluated and its preliminary mechanism was investigated. In vitro experiments showed that APS2‑1 was able to promote human skin fibroblast (HSF) propagation and accelerate cell cycle progression. For further examination, a scalded mice model was used to verify the effect of APS2‑1 and investigate its mechanism of action...
April 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28438134/poly-i-c-induces-collective-migration-of-hacat-keratinocytes-via-il-8
#2
Kazuhide Takada, Shihoko Komine-Aizawa, Naoko Hirohata, Quang Duy Trinh, Atsuyoshi Nishina, Hirokazu Kimura, Satoshi Hayakawa
BACKGROUND: Delayed wound healing reduces the quality of life (QOL) of patients. Thus, understanding the mechanism of wound healing is indispensable for better management. However, the role of innate immunity in wound healing is thus far unknown. Recently the involvement of TLR3 in wound healing has been evaluated. The systemic administration of polyriboinosinic-polyribocytidylic acid (poly I:C ; a substitute for viral dsRNA and a ligand of toll-like receptor 3), enhances wound healing in vivo...
April 24, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28436215/multilayer-nanofilms-via-inkjet-printing-for-stabilizing-growth-factor-and-designing-desired-cell-developments
#3
Moonhyun Choi, Hee Ho Park, Daheui Choi, Uiyoung Han, Tai Hyun Park, Hwankyu Lee, Juhyun Park, Jinkee Hong
Biologically versatile basic fibroblast growth factor (bFGF), well known for roles of signaling molecules between cells and regulating various cellular processes, has been proven to utilize specific functionalities. However, the remarkable functions are inclinable to dwindle with decrease of bFGFs' activity. In nanoscale, developing thin films with intrinsic characteristics of building molecules can facilitate handling various materials for desired purposes. Fabricating nanofilm and handling sensitive materials without detriment to activity via highly productive manufacturing are significant for practical uses in the field of biomedical applications...
April 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28435226/inhibition-of-lymphangiogenesis-in-vitro-and-in-vivo-by-the-multikinase-inhibitor-nintedanib
#4
Tong Lin, Lan Gong
PURPOSE: To investigate the feasibility of nintedanib, a novel triple angiokinase inhibitor, for inhibiting lymphatic endothelial cell (LEC)-induced lymphangiogenesis in vitro and inflammatory corneal lymphangiogenesis in vivo. MATERIALS AND METHODS: Methylthiazolyldiphenyl-tetrazolium bromide (MTT) test, transwell system, and tube-formation assay were used to evaluate the effects of nintedanib on the proliferation, migration, and tube formation of LECs stimulated by vascular endothelial growth factor-C (VEGF-C), basic fibroblast growth factor (bFGF), or platelet-derived growth factor-BB (PDGF-BB)...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28434284/injection-of-basic-fibroblast-growth-factor-for-unilateral-vocal-cord-paralysis
#5
Takeharu Kanazawa, Kazuya Kurakami, Kazutaka Kashima, Ujimoto Konomi, Daigo Komazawa, Kazuhiro Nakamura, Koji Matsushima, Yusuke Akagi, Kiyoshi Misawa, Hiroshi Nishino, Yusuke Watanabe
OBJECTIVE: Unilateral vocal cord paralysis (UVCP) not only induces severe dysphonia, but aspiration as well. Although laryngeal framework surgery is usually performed to treat this condition, the procedure is not tolerated by some patients. In the previous study, basic fibroblast growth factor (bFGF) injections for vocal cord scarring and sulcus have been reported to provide favorable outcomes while being minimally invasive. In this study, the authors retrospectively investigated phonological outcomes after bFGF injection in patients with UVCP...
April 22, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28431325/bfgf-neutralization-stimulates-vegf-secretion-in-melanoma-b16-cells
#6
Zhiyong Wang, Pei Wei, Junjian Xiang, Hong Wang
Basic fibroblast growth factor (bFGF), which is expressed by most melanoma cells, can stimulate other growth factors secretion. It is well known that bFGF induces VEGF production; however, the influence of bFGF blockade remains uncertain. Here, we investigated the effect of bFGF neutralization on VEGF expression in B16 melanoma cells. We found that bFGF blockade resulting in increased VEGF expression and activated PI3K/AKT and P44/42 MAPK pathways. Moreover, combined inhibition of bFGF and VEGF led to enhanced activity against B16 tumors in vitro and in vivo...
April 18, 2017: Cytokine
https://www.readbyqxmd.com/read/28423625/inhibition-activity-of-a-disulfide-stabilized-diabody-against-basic-fibroblast-growth-factor-in-lung-cancer
#7
Yaxiong Cai, Shuange Yao, Jiangchuan Zhong, Jinxia Zhang, Haowu Jiang, Yanrui Deng, Ning Deng
The over-expression of basic fibroblast growth factor (bFGF) plays a crucial role in the development, invasion and metastasis of lung cancer. Therefore, neutralizing antibodies against bFGF may inhibit the growth of lung cancer. In this study, a Disulfide-stabilized diabody (ds-Diabody) against bFGF was constructed by site-directed mutation and overlap extension PCR (SOE-PCR) at the position of VH44 and VL100 in the scFv. The ds-Diabody was constructed and expressed in Pichia pastoris. We found that the ds-Diabody against bFGF could efficiently suppress the proliferation, migration and invasion of human lung cancer A549 cells in vitro...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416318/basic-fibroblast-growth-factor-regulates-gene-and-protein-expression-related-to-proliferation-differentiation-and-matrix-production-of-human-dental-pulp-cells
#8
Ya-Ching Chang, Mei-Chi Chang, Yi-Jane Chen, Ji-Uei Liou, Hsiao-Hua Chang, Wei-Ling Huang, Wan-Chuen Liao, Chiu-Po Chan, Po-Yuan Jeng, Jiiang-Huei Jeng
INTRODUCTION: Basic fibroblast growth factor (bFGF) plays differential effects on the proliferation, differentiation, and extracellular matrix turnover in various tissues. However, limited information is known about the effect of bFGF on dental pulp cells. The purposes of this study were to investigate whether bFGF influences the cell differentiation and extracellular matrix turnover of human dental pulp cells (HDPCs) and the related gene and protein expression as well as the role of the mitogen-activated protein kinase (MEK)/extracellular-signal regulated kinase (ERK) signaling pathway...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28415472/supercritical-carbon-dioxide-extracted-extracellular-matrix-material-from-adipose-tissue
#9
Jun Kit Wang, Baiwen Luo, Vipra Guneta, Liang Li, Selin Ee Min Foo, Yun Dai, Timothy Thatt Yang Tan, Nguan Soon Tan, Cleo Choong, Marcus Thien Chong Wong
Adipose tissue is a rich source of extracellular matrix (ECM) material that can be isolated by delipidating and decellularizing the tissue. However, the current delipidation and decellularization methods either involve tedious and lengthy processes or require toxic chemicals, which may result in the elimination of vital proteins and growth factors found in the ECM. Hence, an alternative delipidation and decellularization method for adipose tissue was developed using supercritical carbon dioxide (SC-CO2) that eliminates the need of any harsh chemicals and also reduces the amount of processing time required...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28412387/germ-cells-regulate-3-hydroxybutyrate-production-in-rat-sertoli-cells
#10
Mariana Regueira, Gustavo Marcelo Rindone, María Noel Galardo, Eliana Herminia Pellizzari, Selva Beatriz Cigorraga, Silvina Beatriz Meroni, María Fernanda Riera
Paracrine regulation of Sertoli cell function by germ cells is an outstanding characteristic of testicular physiology. It has been demonstrated that Sertoli cells produce ketone bodies and that germ cells may use them as energy source. The aim of the study was to analyze a possible regulation by germ cells of ketogenesis in Sertoli cells. Cultures of Sertoli cells (SC) obtained from 31-day-old rats were co-cultured with germ cells (GC). The results presented herein show that the presence of GC stimulated 3-hydroxybutyrate production and increased mRNA levels of two enzymes involved in ketogenesis-carnitine palmitoyltransferase 1a (CPT1a) and mitochondrial 3-hydroxy-3-methylglutaryl-CoA (mHMGCoA) synthase- in SC...
April 12, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28405874/systemic-inflammation-during-the-first-postnatal-month-and-the-risk-of-attention-deficit-hyperactivity-disorder-characteristics-among-10-year-old-children-born-extremely-preterm
#11
Elizabeth N Allred, Olaf Dammann, Raina N Fichorova, Stephen R Hooper, Scott J Hunter, Robert M Joseph, Karl Kuban, Alan Leviton, Thomas Michael O'Shea, Megan N Scott
Although multiple sources link inflammation with attention difficulties, the only human study that evaluated the relationship between systemic inflammation and attention problems assessed attention at age 2 years. Parent and/or teacher completion of the Childhood Symptom Inventory-4 (CSI-4) provided information about characteristics that screen for attention deficit hyperactive disorder (ADHD) among 793 10-year-old children born before the 28th week of gestation who had an IQ ≥ 70. The concentrations of 27 proteins in blood spots obtained during the first postnatal month were measured...
April 12, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28401100/generation-of-hematopoietic-stem-cells-from-human-embryonic-stem-cells-using-a-defined-stepwise-serum-free-and-serum-replacement-free-monolayer-culture-method
#12
So-Jung Kim, Ji-Won Jung, Hye-Yeong Ha, Soo Kyung Koo, Eung-Gook Kim, Jung-Hyun Kim
BACKGROUND: Embryonic stem cells (ESCs) can be expanded infinitely in vitro and have the potential to differentiate into hematopoietic stem cells (HSCs); thus, they are considered a useful source of cells for HSC production. Although several technical in vitro methods for engineering HSCs from pluripotent stem cells have been developed, clinical application of HSCs engineered from pluripotent stem cells is restricted because of the possibility of xenogeneic contamination resulting from the use of murine materials...
March 2017: Blood Research
https://www.readbyqxmd.com/read/28396037/antecedents-and-correlates-of-blood-concentrations-of-neurotrophic-growth-factors-in-very-preterm-newborns
#13
Alan Leviton, Elizabeth N Allred, Hidemi Yamamoto, Raina N Fichorova, Karl Kuban, T Michael O'Shea, Olaf Dammann
AIM: To identify the antecedents and very early correlates of low concentrations of neurotrophic growth factors in the blood of extremely preterm newborns during the first postnatal month. METHODS: Using an immunobead assay, we measured the concentrations of neurotrophin 4 (NT4), brain-derived neurotrophic factor (BDNF), and basic fibroblast growth factor (bFGF) in blood spots collected on postnatal days 1 (N=1062), 7 (N=1087), 14 (N=989), 21 (N=940) and 28 (N=880) from infants born before the 28th week of gestation...
April 7, 2017: Cytokine
https://www.readbyqxmd.com/read/28393322/anti-angiogenic-effect-of-hexahydrocurcumin-in-rat-corneal-neovascularization
#14
Chien-Neng Kuo, Ching-Hsein Chen, San-Ni Chen, Jou-Cheng Huang, Li-Ju Lai, Chien-Hsiung Lai, Chia-Hui Hung, Chien-Hsing Lee, Chung-Yi Chen
AIM: This study was to investigate the anti-angiogenic effect of hexahydrocurcumin (HHC) to evaluate gene (p-basic fibroblast growth factor (bFGF)-SAINT-18 & p-vascular endothelial growth factor (VEGF)-SAINT-18 complex)-induced corneal neovascularization (CorNV) in rats. METHODS: CorNV was induced in 24 eyes of 24 rats. Four groups (Group A: 0 μg, B: 0.01 μg, C: 0.1 μg, and D: 1 μg) of HHC were prepared and implanted into the rat subconjunctival substantia propria 1...
April 9, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28392382/angiogenenic-effects-of-bplec-a-c-type-lectin-isolated-from-bothrops-pauloensis-snake-venom
#15
Letícia Eulalio Castanheira, Daiana Silva Lopes, Sarah Natalie Cirilo Gimenes, Simone Ramos Deconte, Bruno Antônio Ferreira, Patricia Terra Alves, Luiz Ricardo Goulart Filho, Tatiana Carla Tomiosso, Renata Santos Rodrigues, Kelly Aparecida Geraldo Yoneyama, Fernanda de Assis Araújo, Veridiana de Melo Rodrigues
The present work reports the effects of a C-type lectin (BpLec) isolated from Bothrops pauloensis snake venom upon in vitro and in vivo angiogenesis models. Initially, we noted that BpLec was not cytotoxic to endothelial cells (tEnd) in doses up to 40μg/mL, but lower doses (2.5μg/mL, 5μg/mL, 10μg/mL and 20μg/mL) reduced tEnd cells adhesion to some extracellular matrix proteins and inhibited the in vitro vessel formation in Matrigel assay stimulated by bFGF. β-galactosides (d-lactose, N-acetyl-d-galactosamine and d-galactose) at 400mM reversed the effect of BpLec on tEnd cells adhesion, whereas d-galactose (400mM) partially reversed BpLec property of inhibiting vessel formation by tEnd cells in Matrigel...
April 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28390267/effects-of-tgf%C3%AE-1-pdgf-bb-and-bfgf-on-human-corneal-fibroblasts-proliferation-and-differentiation-during-stromal-repair
#16
Patricia Gallego-Muñoz, Lucía Ibares-Frías, María Cruz Valsero-Blanco, Roberto Cantalapiedra-Rodriguez, Jesús Merayo-Lloves, M Carmen Martínez-García
In an effort to improve the regenerative nature of corneal repair, this study reports the use of an in vitro human corneal fibroblasts (HCFs) wound model after treatment with three of the main growth factors (GFs) involved in corneal healing: transforming growth factor beta 1 (TGFβ1), platelet-derived growth factor BB-isoform (PDGF-BB), and basic fibroblast growth factor (bFGF) in order to delve in cell proliferation and differentiation processes. HCFs were mechanically wounded. The individual effect of TGFβ1, PDGF-BB, and bFGF on cell proliferation and differentiation during the repair process was studied at different time points until wound closure...
April 5, 2017: Cytokine
https://www.readbyqxmd.com/read/28390174/suppression-of-basic-fibroblast-growth-factor-expression-by-antisense-oligonucleotides-inhibits-neural-stem-cell-proliferation-and-differentiation-in-rat-models-with-focal-cerebral-infarction
#17
Chao Li, Li-He Che, Lei Shi, Jin-Lu Yu
This study is designed to investigate the role of basic fibroblast growth factor (bFGF) antisense oligonucleotide (ASODN) on the proliferation and differentiation of neural stem cells (NSCs) in rat models with focal cerebral infarction (CI). Seventy-five Sprague-Dawlay (SD) rats were randomly divided into the control, sham, middle cerebral artery occlusion (MCAO), MCAO + nonsense oligonucleotide (NODN) and MCAO + ASODN groups. Proliferation and differentiation of NSCs were detected by bromodeoxyuridine (BrdU) and immunofluorescence staining, respectively...
April 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28388894/juglone-induces-apoptosis-of-tumor-stem-like-cells-through-ros-p38-pathway-in-glioblastoma
#18
Jinfeng Wu, Haibo Zhang, Yang Xu, Jingwen Zhang, Wei Zhu, Yi Zhang, Liang Chen, Wei Hua, Ying Mao
BACKGROUND: Juglone is a natural pigment, which has cytotoxic effect against various human tumor cells. However, its cytotoxicity to glioma cells, especially to tumor stem-like cells (TSCs) has not been demonstrated. METHODS: TSCs of glioma were enriched from U87 and two primary cells (SHG62, and SHG66) using serum-free medium supplemented with growth factors, including bFGF, EGF and B27. After treatment of juglone with gradient concentrations (0, 10, 20, and 40 μM), the viability and apoptosis of TSCs were evaluated by WST-8 assay and flow cytometry...
April 7, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28386189/the-effect-of-leonuri-herba-alkaloids-on-senile-bph-male-and-female-hormone-induced-model-rats
#19
Mingsan Miao, Tan Wang, Jing Liu, Yan Li, Zhenna Fu, Shuo Tian
Objective: To investigate the pharmacological effects of Leonuri Herba alkaloids (LHA) on prostate hyperplasia in older rats and the effect mechanism. Methods: Remove bilateral testes from BPH model rats, and conduct subcutaneous injection of testosterone and estradiol. At the same time, feed corresponding drugs to the rats by gastric perfusion for 30d. In the first 27d, conduct bladder fistula surgery. Three days after feeding, carry out the detection of the urine flow dynamics. Eyeball blood taking, determination of serum E2 levels, and quickly remove the prostate, thymus gland, spleen, kidney, lung, and bladder...
March 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28381794/effect-of-nerve-growth-factor-on-innervation-of-perivascular-nerves-in-neovasculatures-of-mouse-cornea
#20
Akiko Matsuyama, Shingo Takatori, Yoko Sone, Eiko Ochi, Mitsuhiro Goda, Yoshito Zamami, Narumi Hashikawa-Hobara, Yoshihisa Kitamura, Hiromu Kawasaki
Angiogenesis, which is the generation of new vascular networks from existing blood vessels, occurs under normal and pathophysiological conditions. Perivascular nerves, which innervate mature vasculatures, maintain vascular tone and regulate tissue blood flow. However, little is known whether perivascular nerves innervate newborn blood vessels. Therefore, the aim of this study was to investigate the distribution and characterization of perivascular nerves in neovasculatures, which were generated by the mouse corneal micropocket method...
2017: Biological & Pharmaceutical Bulletin
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