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Cells, Tissues, Organs

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https://www.readbyqxmd.com/read/28877520/protective-effect-of-ginger-zingiber-officinale-roscoe-extract-against-oxidative-stress-and-mitochondrial-apoptosis-induced-by-interleukin-1%C3%AE-in-cultured-chondrocytes
#1
Azam Hosseinzadeh, Kobra Bahrampour Juybari, Mohammad Javad Fatemi, Tunku Kamarul, Aboulfazl Bagheri, Neda Tekiyehmaroof, Ali Mohammad Sharifi
AIMS: The protective effects of ginger (Zingiber officinale Roscoe) extract on IL-1β-mediated oxidative stress and mitochondrial apoptosis were investigated in C28I2 human chondrocytes. METHODS: The effects of various concentrations of ginger extract on C28I2 human chondrocyte viability were evaluated in order to obtain noncytotoxic concentrations of the drug by methylthiotetrazole assay. The cells were pretreated with 5 and 25 μg/mL ginger extract for 24 h, followed by incubation with IL-1β (10 ng/mL) for 24 h...
September 7, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28858865/prof-dr-med-dr-h-c-michael-frotscher-1947-2017
#2
(no author information available yet)
No abstract text is available yet for this article.
September 1, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28854416/new-advanced-biomaterials-for-tissue-and-organ-regeneration-repair
#3
Loredana De Bartolo, Antonella Piscioneri
No abstract text is available yet for this article.
August 31, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28848084/comparison-of-different-sources-of-mesenchymal-stem-cells-palatal-versus-lipoaspirated-adipose-tissue
#4
Sema S Hakki, Gizem Turaç, S Buket Bozkurt, Seyit Ali Kayis, Erdogan E Hakki, Eren Şahin, Cansu Subaşı, Erdal Karaoz
OBJECTIVES: The purpose of this study was to compare the proliferation and differentiation potential of mesenchymal stem cells (MSCs) derived from palatal adipose tissue (PAT) and lipoaspirated adipose tissue (LAT). MATERIALS AND METHODS: PATs were obtained from 2 healthy female patients undergoing surgery for gingival recession, and LATs were obtained from 2 healthy female patients undergoing plastic surgery. LAT- and PAT-derived MSCs were confirmed by flow cytometry using MSC-specific surface markers...
August 26, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28848167/an-effective-cell-coculture-platform-based-on-the-electrospun-microtube-array-membrane-for-nerve-regeneration
#5
V Chia-Hsuan Tseng, Chee Ho Chew, Wan-Ting Huang, Yang-Kao Wang, Ko-Shao Chen, Szu-Yi Chou, Chien-Chung Chen
Recently, a novel substrate known as an electrospun polylactic acid (PLLA) microtube array membrane (MTAM) was successfully developed as a cell coculture platform. Structurally, this substrate is made up of one-to-one connected, ultrathin, submicron scale fibers that are arranged in an arrayed formation. Its unique structure confers several key advantages which are beneficial in a cell coculture system. In this study, the interaction between rat fetal neural stem cells (NSC) and astrocytes was examined by comparing the outcome of a typical Transwell-based coculture system and that of an electrospun PLLA MTAM-based coculture system...
August 25, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28803246/biofunctional-ionic-doped-calcium-phosphates-silk-fibroin-composites-for-bone-tissue-engineering-scaffolding
#6
S Pina, R F Canadas, G Jiménez, M Perán, J A Marchal, R L Reis, J M Oliveira
The treatment and regeneration of bone defects caused by traumatism or diseases have not been completely addressed by current therapies. Lately, advanced tools and technologies have been successfully developed for bone tissue regeneration. Functional scaffolding materials such as biopolymers and bioresorbable fillers have gained particular attention, owing to their ability to promote cell adhesion, proliferation, and extracellular matrix production, which promote new bone growth. Here, we present novel biofunctional scaffolds for bone regeneration composed of silk fibroin (SF) and β-tricalcium phosphate (β-TCP) and incorporating Sr, Zn, and Mn, which were successfully developed using salt-leaching followed by a freeze-drying technique...
August 12, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28803236/enhancement-of-bone-healing-by-local-administration-of-carbon-nanotubes-functionalized-with-sodium-hyaluronate-in-rat-tibiae
#7
Vanessa B Andrade, Marcos A Sá, Renato M Mendes, Paulo A Martins-Júnior, Gerluza A B Silva, Bruna R Sousa, Marcelo V Caliari, Erick S Ávila, Luiz Orlando Ladeira, Rodrigo R Resende, Anderson J Ferreira
It has been reported that carbon nanotubes (CNTs) serve as nucleation sites for the deposition of bone matrix and cell proliferation. Here, we evaluated the effects of multi-walled CNTs (MWCNTs) on bone repair of rat tibiae. Furthermore, because sodium hyaluronate (HY) accelerates bone restoration, we associated CNTs with HY (HY-MWCNTs) in an attempt to boost bone repair. The bone defect was created by a 1.6-mm-diameter drill. After 7 and 14 days, tibiae were processed for histological and morphometric analyses...
August 12, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28787740/neuronal-differentiation-modulated-by-polymeric-membrane-properties
#8
Sabrina Morelli, Antonella Piscioneri, Enrico Drioli, Loredana De Bartolo
In this study, different collagen-blend membranes were successfully constructed by blending collagen with chitosan (CHT) or poly(lactic-co-glycolic acid) (PLGA) to enhance their properties and thus create new biofunctional materials with great potential use for neuronal tissue engineering and regeneration. Collagen blending strongly affected membrane properties in the following ways: (i) it improved the surface hydrophilicity of both pure CHT and PLGA membranes, (ii) it reduced the stiffness of CHT membranes, but (iii) it did not modify the good mechanical properties of PLGA membranes...
August 5, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28787732/tissue-engineering-of-vein-valves-based-on-decellularized-natural-matrices
#9
Alexandru Mogaldea, Tobias Goecke, Karolina Theodoridis, Axel Haverich, Serghei Cebotari, Andres Hilfiker
Valvular repair or transplantation, designed to restore the venous valve function of the legs, has been proposed as treatment in chronic venous insufficiency. Available grafts or surgeries have provided limited durability so far. Generating venous valve substitutes by means of tissue engineering could be a solution. We generated decellularized jugular ovine vein conduits containing valves (oVVC) after reseeding with ovine endothelial cells differentiated from peripheral blood-derived endothelial cells (oPBEC), cultivated in vitro corresponding to the circulatory situation in the lower leg at rest and under exertion...
August 5, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28772272/vascularized-cardiac-spheroids-as-novel-3d-in-vitro-models-to-study-cardiac-fibrosis
#10
Gemma A Figtree, Kristen J Bubb, Owen Tang, Eddy Kizana, Carmine Gentile
Spheroid cultures are among the most explored cellular biomaterials used in cardiovascular research, due to their improved integration of biochemical and physiological features of the heart in a defined architectural three-dimensional microenvironment when compared to monolayer cultures. To further explore the potential use of spheroid cultures for research, we engineered a novel in vitro model of the heart with vascularized cardiac spheroids (VCSs), by coculturing cardiac myocytes, endothelial cells, and fibroblasts isolated from dissociated rat neonatal hearts (aged 1-3 days) in hanging drop cultures...
August 4, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28746930/cocultivation-of-mesenchymal-stem-cells-and-endothelial-progenitor-cells-reveals-antiapoptotic-and-proangiogenic-effects
#11
Dominik Steiner, Katrin Köhn, Justus P Beier, Michael Stürzl, Raymund Horch, Andreas Arkudas
Integrating bioartificial tissues into the host vasculature is a prerequisite for tissue engineering applications. Endothelial progenitor cells (EPCs) display a high angiogenic potential and a low donor-site morbidity, making them ideal for tissue engineering applications. In our study we used a murine EPC cell line (T17b) and rat mesenchymal stem cells (MSCs) for cocultivation experiments. MSCs were cocultured with increasing T17b EPC amounts. Furthermore, MSCs in monoculture were treated with conditioned medium (CM) from T17b EPCs and T17b EPCs were treated with CM from MSCs...
July 27, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28697491/trpc1-trpc3-and-trpc4-in-rat-orofacial-structures
#12
Masatoshi Fujita, Tadasu Sato, Takehiro Yajima, Eiji Masaki, Hiroyuki Ichikawa
TRPC (transient receptor potential cation channel subfamily C) members are nonselective monovalent cation channels and control Ca2+ inflow. In this study, immunohistochemistry for TRPC1, TRPC3, and TRPC4 was performed on rat oral and craniofacial structures to elucidate their distribution and function in the peripheries. In the trigeminal ganglion (TG), 56.1, 84.1, and 68.3% of sensory neurons were immunoreactive (IR) for TRPC1, TRPC3, and TRPC4, respectively. A double immunofluorescence method revealed that small to medium-sized TG neurons co-expressed TRPCs and calcitonin gene-related peptide...
July 12, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28700993/the-impact-of-oxidative-stress-factors-on-the-viability-senescence-and-methylation-status-of-olfactory-bulb-derived-glial-cells-isolated-from-human-cadaver-donors
#13
Krzysztof Marycz, Katarzyna Kornicka, Jakub Grzesiak, Krzysztof A Tomaszewski, Dariusz Szarek, Paweł Kopacz
The olfactory bulb (OB) is a unique structure in the central nervous system that retains the ability to create new neuronal connections. Glial cells isolated from the OB have been recently considered as a novel and promising tool to establish an effective therapy for central nervous system injuries. Due to the hindered access to autologous tissue for cell isolation, an allogeneic source of tissues obtained postmortem has been proposed. In this study, we focused on the morphological and molecular characteristics of human OB-derived glial cells isolated postmortem, at different time points after a donor's death...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28647733/role-of-mesenchymal-stem-cells-in-bone-regenerative-medicine-what-is-the-evidence
#14
Ahmad Oryan, Amir Kamali, Ali Moshiri, Mohamadreza Baghaban Eslaminejad
Healing and regeneration of bone injuries, particularly those that are associated with large bone defects, are a complicated process. There is growing interest in the application of osteoinductive and osteogenic growth factors and mesenchymal stem cells (MSCs) in order to significantly improve bone repair and regeneration. MSCs are multipotent stromal stem cells that can be harvested from many different sources and differentiated into a variety of cell types, such as preosteogenic chondroblasts and osteoblasts...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28647731/recovery-of-vocal-fold-epithelium-after-acute-phonotrauma
#15
Bernard Rousseau, Tsuyoshi Kojima, Carolyn K Novaleski, Emily E Kimball, Carla V Valenzuela, Masanobu Mizuta, James J Daniero, C Gaelyn Garrett, M Preeti Sivasankar
We investigated the timeline of tissue repair of vocal fold epithelium after acute vibration exposure using an in vivo rabbit model. Sixty-five New Zealand white breeder rabbits were randomized to 120 min of modal- or raised-intensity phonation. After the larynges were harvested at 0, 4, 8, and 24 h, and at 3 and 7 days, the vocal fold tissue was evaluated using electron microscopy and quantitative real-time polymerase chain reaction. There was an immediate decrease in the microprojection depth and height following raised-intensity phonation, paired with upregulation of cyclooxygenase-2...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28564646/constitutive-activation-of-smoothened-in-the-renal-collecting-ducts-leads-to-renal-hypoplasia-hydronephrosis-and-hydroureter
#16
Deepak Prasad Gupta, Jae-Won Hwang, Eui-Sic Cho, Won Kim, Chang Ho Song, Ok Hee Chai
Sonic Hedgehog (Shh) signaling plays a major role in and is essential for regulation, patterning, and proliferation during renal development. Smoothened (Smo) plays a pivot role in transducing the Shh-glioma-associated oncogene Kruppel family member. However, the cellular and molecular mechanism underlying the role of sustained Smo activation in postnatal kidney development is still not clearly understood. Using a conditional knockin mouse model that expresses a constitutively activated form of Smo (SmoM2) upon Homeobox-B7-mediated recombination (Hoxb7-Cre), the effects of Shh signaling were determined in postnatal kidney development...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28554187/embryonic-stem-cells-for-tissue-biocompatibility-angiogenesis-and-inflammation-testing
#17
Fatemeh Sharifpanah, Matthias Reinhardt, Johanna Schönleben, Claudia Meyer, Madeleine Richter, Matthias Schnabelrauch, Claudia Rode, Annika Wartenberg, Mohamed Bekhite, Heinrich Sauer, Maria Wartenberg
AIM: To introduce embryoid bodies derived from mouse embryonic stem (ES) cells, which differentiate blood vessel-like structures and leukocytes, as a novel in vitro model system for biocompatibility, inflammation, and angiogenesis studies. METHODOLOGY/RESULTS: Punched spherical discs of bioabsorbable polymers (ε-caprolactone and L-lactide in different compositions) with a diameter of 2 mm and a thickness of 0.2 mm were inoculated with embryoid bodies for cocultivation...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28494459/influence-of-bovine-serum-lipids-and-fetal-bovine-serum-on-the-expression-of-cell-surface-markers-in-cultured-bovine-preadipocytes
#18
Mansur A Sandhu, Sandra Jurek, Susanne Trappe, Martin Kolisek, Gerhard Sponder, Jörg R Aschenbach
To establish the influence of fetal bovine serum (FBS) and bovine serum lipids (BSL) on cell differentiation marker expression, bovine adipose-derived stem cells from subcutaneous tissue were incubated for 14 days in 4 types of differentiation media containing 10% FBS and 10 µL/mL BSL (TRT-1), no FBS and 10 µL/mL of BSL (TRT-2), 10% FBS and no BSL (TRT-3), or no supplements (TRT-4). Cells were subjected to Nile red staining, immunocytochemistry (CD73, CD90, CD105, DLK1, FabP4), and quantitative real-time PCR (CD73, CD90, CD105, FabP4)...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28478436/angiotensin-ii-angiotensin-ii-receptor-blockade-affects-osteoporosis-via-the-at1-at2-mediated-camp-dependent-pka-pathway
#19
Yi Zhou, Xiaoxu Guan, Xiaoyi Chen, Mengfei Yu, Chaowei Wang, Xuepeng Chen, Jiejun Shi, Tie Liu, Huiming Wang
Animal studies have reported on the benefits of ARB on bone mass. However, the underlying mechanism for angiotensin II (AngII)/AngII receptor blockade (ARB) in regulating bone mass remains elusive. Since high levels of plasma and urine cAMP are observed in osteoporotic and hypertensive patients, we hypothesized that cAMP may be an important molecule for the downstream events of the activation of AT receptors, members of the G-protein-coupled receptor family, in regulating bone turnover. In this study, micro-CT and X-ray analyses indicated that AngII decreased bone mass via biasing bone resorption over bone formation in osteoporotic mice...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28468001/sensory-neurons-in-the-human-geniculate-ganglion
#20
Tadasu Sato, Yu Yamaguma, Yu Sasaki, Noriyuki Kanda, Nobuyuki Sasahara, Souichi Kokubun, Takehiro Yajima, Hiroyuki Ichikawa
The geniculate ganglion (GG) contains visceral and somatic sensory neurons of the facial nerve. In this study, the number and cell size of sensory neurons in the human GG were investigated. The estimated number of GG neurons ranged from 1,580 to 2,561 (mean ± SD = 1,960 ± 364.6). The cell size of GG neurons ranged from 393.0 to 2,485.4 μm2 (mean ± SD = 1,067.4 ± 99.5 μm2). Sensory neurons in the GG were significantly smaller in size than those in the dorsal root (range = 326.6-5343.4 μm2, mean ± SD = 1,683...
2017: Cells, Tissues, Organs
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