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Comparison of Angiogenic Activities of Three Neuropeptides, Substance P, Secretoneurin, and Neuropeptide Y Using Myocardial Infarction

Lee J, Song M, Kim J, Park Y

BACKGROUND: The interplay between neurogenesis and angiogenesis is crucial during the development mediated by neuro-angiogenic morphogens. In particular, the angiogenic activity of neuropeptides and their role in tissue regeneration have...
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Fabrication of Microchannels and Evaluation of Guided Vascularization in Biomimetic Hydrogels

Lee J, Lee SH, Lee BK, Park SH, Cho YS, Park Y

BACKGROUND: The fabrication of microchannels in hydrogel can facilitate the perfusion of nutrients and oxygen, which leads to guidance cues for vasculogenesis. Microchannel patterning in biomimetic hydrogels is a challenging...
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Wicking Property of Graft Material Enhanced Bone Regeneration in the Ovariectomized Rat Model

Kim S, Ahn T, Han MH, Bae C, Oh DS

BACKGROUND: Recruitment and homing cells into graft materials from host tissue is crucial for bone regeneration. METHODS: Highly porous, multi-level structural, hydroxyapatite bone void filler (HA-BVF) have been investigated to restore...
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A 4-Axis Technique for Three-Dimensional Printing of an Artificial Trachea

Park HS, Park HJ, Lee J, Kim P, Lee JS, Lee YJ, Seo YB, Kim DY, Ajiteru O, Lee OJ, Park CH

BACKGROUND: Several types of three-dimensional (3D)-printed tracheal scaffolds have been reported. Nonetheless, most of these studies concentrated only on application of the final product to an in vivo animal study...
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A Pathophysiological Validation of Collagenase II-Induced Biochemical Osteoarthritis Animal Model in Rabbit

Park J, Lee J, Kim KI, Lee J, Jang S, Choi HT, Son Y, Kim HJ, Woo EJ, Lee E, Oh TI

BACKGROUND: Current dilemma working with surgically-induced OA (osteoarthritis) model include inconsistent pathological state due to various influence from surrounding tissues. On the contrary, biochemical induction of OA using collagenase II...
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The Use of Normal Stem Cells and Cancer Stem Cells for Potential Anti-Cancer Therapeutic Strategy

Han SW, Kim YY, Kang WJ, Kim HC, Ku SY, Kang BC, Yun JW

BACKGROUND: Despite recent advance in conventional cancer therapies including surgery, radiotherapy, chemotherapy, and immunotherapy to reduce tumor size, unfortunately cancer mortality and metastatic cancer incidence remain high. Along with a...
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Mesenchymal Stem Cells of Different Origin-Seeded Bioceramic Construct in Regeneration of Bone Defect in Rabbit

Maiti SK, Shivakumar MU, Mohan D, Kumar N, Singh KP

BACKGROUND: Stem cell is currently playing a major role in the treatment of number of incurable diseases via transplantation therapy. The objective of this study was to determine the osteogenic...
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In Vitro and In Vivo Osteogenesis of Human Orbicularis Oculi Muscle-Derived Stem Cells

Liu G, Liao C, Chen X, Wu Y

BACKGROUND: Cell-based therapies for treating bone defects require a source of stem cells with osteogenic potential. There is evidence from pathologic ossification within muscles that human skeletal muscles contain osteogenic...
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Thermoresponsive and Biodegradable Amphiphilic Block Copolymers with Pendant Functional Groups

Lee BK, Noh JH, Park JH, Park SH, Kim JH, Oh SH, Kim MS

BACKGROUND: To develop the biodegradability and thermoresponsive hydrogel, in this work we designed a pendant-functionalized, thermoresponsive, amphiphilic block copolymer. METHODS: Methoxy poly(ethylene glycol) (MPEG)-b-[poly(ε-caprolactone)-ran-poly(ε-caprolactone-3-one)-ran-polylactic acid] (MCL) and (MPEG-b-[PCL-ran-POD-ran-PLA]) [MCL-(CO)] block copolymers...
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Three-Dimensional Spheroid Culture Increases Exosome Secretion from Mesenchymal Stem Cells

Kim M, Yun HW, Park DY, Choi BH, Min BH

BACKGROUND: Mass production of exosomes is a prerequisite for their commercial utilization. This study investigated whether three-dimensional (3D) spheroid culture of mesenchymal stem cells (MSCs) could improve the production efficiency...
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Positive Effects of Bisphosphonates on Osteogenic Differentiation in Patient-Derived Mesenchymal Stem Cells for the Treatment of Osteoporosis

Cha M, Lee KM, Lee JH

BACKGROUND: Recent evidence from in vitro and in vivo studies indicates that bisphosphonates may promote osteoblastic bone formation and potently inhibit osteoclast activity. However, little is known about the potential...
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In Vivo Validation Model of a Novel Anti-Inflammatory Scaffold in Interleukin-10 Knockout Mouse

Kim JY, Chun SY, Lee SH, Lih E, Kim J, Kim DH, Ha YS, Chung JW, Lee JN, Kim BS, Kim HT, Yoo ES, Han DK, Kwon TG, Jang BI

BACKGROUND: We fabricated anti-inflammatory scaffold using Mg(OH)2-incorporated polylactic acid-polyglycolic acid copolymer (MH-PLGA). To demonstrate the anti-inflammatory effects of the MH-PLGA scaffold, an animal model should be sensitive to inflammatory responses....
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A Novel Dorsal Slit Approached Non-Ischemic Partial Nephrectomy Method for a Renal Tissue Regeneration in a Mouse Model

Chun SY, Kim DH, Kim JS, Kim HT, Yoo ES, Chung JW, Ha YS, Song PH, Joung YK, Han DK, Chung SK, Kim BS, Kwon TG

BACKGROUND: Kidney ischemia-reperfusion (IR) via laparotomy is a conventional method for kidney surgery in a mouse model. However, IR, an invasive procedure, can cause serious acute and chronic complications through...
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