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https://www.readbyqxmd.com/read/29779016/integrated-analysis-of-colorectal-cancer-microrna-datasets-identification-of-micrornas-associated-with-tumor-development
#1
Luca Falzone, Letizia Scola, Antonino Zanghì, Antonio Biondi, Antonio Di Cataldo, Massimo Libra, Saverio Candido
Colorectal cancer (CRC) is one of the leading cause of cancer death worldwide. Currently, no effective early diagnostic biomarkers are available for colorectal carcinoma. Therefore, there is a need to discover new molecules able to identify pre-cancerous lesions. Recently, microRNAs (miRNAs) have been associated with the onset of specific pathologies, thus the identification of miRNAs associated to colorectal cancer may be used to detect this pathology at early stages. On these bases, the expression levels of miRNAs were analyzed to compare the miRNAs expression levels of colorectal cancer samples and normal tissues in several miRNA datasets...
May 18, 2018: Aging
https://www.readbyqxmd.com/read/29778895/therapeutic-antibody-directed-osteogenic-differentiation-of-induced-pluripotent-stem-cells-derived-mscs
#2
Qingqing Wu, Bo Yang, Cong Cao, Kevin Hu, Ping Wang, Yi Man
Induced pluripotent stem cells (iPSCs) are regarded as a new cell source for regenerative medicine. Recent advances in tissue engineering have brought to light the therapeutic application of induced pluripotent stem cells (iPSCs) in bone defect repair. However, a safe and efficient way to differentiate iPSCs into osteogenic lineage remains to be a major challenge. Here we describe an approach using anti-BMP2 antibodies (Abs) to mediate osteogenic differentiation of iPSC-derived mesenchymal stromal cells (iMSCs)...
May 17, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29778801/injury-and-stress-responses-of-adult-neural-crest-derived-cells
#3
REVIEW
Vadims Parfejevs, Ana T Antunes, Lukas Sommer
Multipotent neural crest cells can self-renew and give rise to a plethora of neural and non-neural cell types in the vertebrate embryo. Intriguingly, cells reminiscent of such neural crest stem cells (NCSCs) have also been isolated from various postnatal and adult neural crest (NC)-derived structures. However, it has been debated whether NCSC-like cells in the adult correspond to 'in vitro artefacts' emerging upon isolation or fulfil a physiological role in vivo. Here, we discuss recent findings indicating that in different adult NC derivatives, injury or stress responses induce a NCSC-like state, presumably by reprogramming of differentiated cells such as Schwann cells...
May 17, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29777942/photomodulation-multiple-sessions-as-a-promising-preventive-therapy-for-medication-related-osteonecrosis-of-the-jaws-after-tooth-extraction-in-rats
#4
Cristian Statkievicz, Luan Felipe Toro, João Martins de Mello-Neto, Daniela Pereira de Sá, Cláudio Aparecido Casatti, João Paulo Mardegan Issa, Luciano Tavares Angelo Cintra, Juliano Milanezi de Almeida, Maria José Hitomi Nagata, Valdir Gouveia Garcia, Leticia Helena Theodoro, Edilson Ervolino
The aim of this study was to evaluate the effects of photobiomodulation (PBM) with multiple sessions of low-level laser on the alveolar repair process of rats with major risk factors for medication-related osteonecrosis of the jaws (MRONJ). Senile rats received 0.45 mL of vehicle (VEH and VEH-PBM) or 0.45 mL of 100 μg/kg zoledronate (ZOL and ZOL-PBM) administrated intraperitoneally every two days during seven weeks. After three weeks of initiation of drug treatment the first lower left molar was extracted...
May 9, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29777792/human-cancer-cells-suppress-behaviors-of-endothelial-progenitor-cells-through-mir-21-targeting-il6r
#5
Wenbin Wang, Xiao Yuan, Aman Xu, Xingyang Zhu, Yanqing Zhan, Shuanhu Wang, Mulin Liu
Deep vein thrombosis (DVT) is a severe clinical process and has a high rate of fatality. Cancer patients have a high incidence rate of venous thrombosis complication and increase the mortality of cancer patients for 2-8 times. The mechanisms involved in human cancers and venous thrombosis remains unclear. In this study, we determined miR-21 expressed higher in human breast cancer, colon cancer and hepatocellular cancer tissues compared with normal tissues and expressed higher in exosomes of breast cancer and hepatocellular cancer cell lines compared with normal cells...
May 16, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29777669/repair-of-thoracic-and-thoracoabdominal-mycotic-aneurysms-and-infected-aortic-grafts-using-allograft
#6
Joel S Corvera, David Blitzer, Hannah Copeland, Daniel Murphy, Philip J Hess, Saila T Pillai, John W Fehrenbacher
BACKGROUND: Mycotic aneurysm of the thoracic or thoracoabdominal aorta and infection of thoracic or thoracoabdominal aortic grafts are challenging problems with high mortality. In-situ reconstruction with cryopreserved allograft(CPA) avoids placement of prosthetic material in an infected field and avoids suppressive antibiotics or autologous tissue coverage. METHODS: Fifty consecutive patients with infection of a thoracic or thoracoabdominal aortic graft or mycotic aneurysm underwent resection and replacement with CPA from 2006 to 2016...
May 16, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29777616/regenerative-endodontics-a-review
#7
REVIEW
S G Kim, M Malek, A Sigurdsson, L M Lin, B Kahler
The European Society of Endodontology and the American Association for Endodontists have released position statements and clinical considerations for regenerative endodontics. There is increasing literature on this field since the initial reports of Iwaya et al. (2001) and Banchs & Trope (2004). Endogenous stem cells from an induced periapical bleeding and scaffolds using blood clot, platelet rich plasma or platelet rich fibrin have been utilized in regenerative endodontics. This approach has been described as a 'paradigm shift" and considered the first treatment option for immature teeth with pulp necrosis...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29777326/sirolimus-coated-poly-l-lactic-acid-modified-polypropylene-mesh-with-minimal-intra-peritoneal-adhesion-formation-in-a-rat-model
#8
S Lu, W Hu, Z Zhang, Z Ji, T Zhang
PURPOSE: This study evaluated the manufacturing method and anti-adhesion properties of a new composite mesh in the rat model, which was made from sirolimus (SRL) grafts on a poly(L-lactic acid) (PLLA)-modified polypropylene (PP) hernia mesh. METHODS: PLLA was first grafted onto argon-plasma-treated native PP mesh through catalysis of stannous chloride. SRL was grafted onto the surface of PP-PLLA meshes using catalysis of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and 4-dimethylaminopyridine (DMAP) in a CH2 Cl2 solvent...
May 18, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29775721/critical-evaluation-of-2-ethylhexyl-acrylate-dermal-carcinogenicity-studies-using-contemporary-criteria
#9
REVIEW
Sandra Murphy, Robert Ellis-Hutchings, Lavorgie Finch, Stefanie Welz, Karin Wiench
Skin tumors have been observed in C3H/HeJ mice following treatment with high and strongly irritating concentrations of 2-ethylhexyl acrylate (2-EHA). Dermal carcinogenicity studies performed with 2-EHA are reviewed, contrasting the results in two mouse strains (C3H/HeJ and NMRI) under different dosing regimens. Application of contemporary evaluation criteria to the existing dermal carcinogenicity dataset demonstrates that 2-EHA induces skin tumors only at concentrations exceeding an maximum tolerated dose (MTD) and in the immune-dysregulated C3H/HeJ mouse model...
May 15, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29775430/gene-expression-profile-analysis-of-aortic-vascular-smooth-muscle-cells-reveals-upregulation-of-cadherin-genes-in-myocardial-infarction-patients
#10
Anselm A Derda, Chin Cheng Woo, Thidathip Wongsurawat, Mark Richards, Chuen Neng Lee, Theo Kofidis, Vladimir A Kuznetsov, Vitaly A Sorokin
Myocardial infarction (MI) induced by acute coronary arterial occlusion is usually secondary to atherosclerotic plaque rupture. Dysregulated response of vascular smooth muscle cells (VSMCs) in atherosclerotic plaques may promote plaque rupture. Cadherins (CDHs) form adherens junctions and are known stabilizers of atherosclerotic plaques. To date, the expression patterns of cadherin have not been well investigated in MI aortic VSMCs. We aimed to investigate the expression of cadherin genes in the aortic wall of patients with and without MI...
May 18, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29775397/receptor-tyrosine-kinase-signaling-in-cancer-radiotherapy-and-its-targeting-for-tumor-radiosensitization
#11
Poushali Bhattacharya, Neena G Shetake, Badri N Pandey, Amit Kumar
PURPOSE: One of the most important implications of 'Radiation Biology' research is to improve cancer radiotherapy with minimum side effects. In this regard, combination of chemotherapy with radiation has significantly improved tumor control as well as overall survival in a variety of cancers. However, this has been achieved at the cost of significant normal tissue toxicity, due to the lack of specificity of chemotherapy. Membrane-localized receptor tyrosine kinases (RTKs) have been found to play a driving role in various hallmarks of cancer...
May 18, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29774991/aggregate-mesenchymal-stem-cell-delivery-ameliorates-the-regenerative-niche-for-muscle-repair
#12
Marissa A Ruehle, Hazel Y Stevens, Aaron M Beedle, Robert E Guldberg, Jarrod A Call
Duchenne muscular dystrophy (DMD) is a severe muscle wasting disease due to the absence of the dystrophin protein from the muscle cell membrane which renders the muscle susceptible to continuous damage. In DMD patients, muscle weakness, together with cycles of degeneration/regeneration and replacement with non-contractile tissue, limit mobility and lifespan. Since the loss of dystrophin result in loss of polarity and a reduction in the number of self-renewing satellite cells, it is postulated that these patients could achieve an improved quality of life if delivered cells could restore satellite cell function...
May 18, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29774825/dietary-zinc-modulates-matrix-metalloproteinases-in-traumatic-brain-injury
#13
Angus Scrimgeour, Christopher Carrigan, Michelle Lynn Condlin, Maria L Urso, Roland M van den Berg, Herman P M van Helden, Scott J Montain, Marloes J A Joosen
Animal models of mild traumatic brain injury (mTBI) provide opportunity to examine the extent to which dietary interventions can be used to improve recovery after injury. Animal studies also suggest that matrix metalloproteinases (MMPs) play a role in tissue remodeling post-TBI. Because dietary zinc (Zn) improved recovery in non-blast mTBI models, and the MMPs are Zn-requiring enzymes, we evaluated the effects of low- and adequate Zn diets on MMP expression and behavioral responses, following exposure to a single blast...
May 18, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29774645/a-novel-rapidly-self-healing-host-guest-supramolecular-hydrogel-with-high-mechanical-strength-and-excellent-biocompatibility
#14
Zhifang Wang, Yipeng Ren, Ye Zhu, Lijing Hao, Yunhua Chen, Geng An, Hongkai Wu, Xuetao Shi, Chuanbin Mao
It is still a challenge to achieve both excellent mechanical strength and biocompatibility in hydrogels. Here we exploited two interactions to form a novel biocompatible, slicing-resistant and self-healing hydrogel. One is the molecular host-guest recognition between a host (isocyanatoethyl acrylate-modified β-cyclodextrin, β-CD-AOI2) and a guest (2-(2-(2-(2-(Adamantyl-1-oxy)ethoxy)ethoxy) ethoxy)ethanol acrylate, A-TEG-Ad) to form novel "three-arm" host-guest supramolecules (HGSMs). Another is the covalent bonding between HGSMs (achieved by UV-initiated polymerization) to form a strong network in the hydrogel...
May 18, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29774565/local-and-systemic-regulation-of-psii-efficiency-in-triticale-infected-by-the-hemibiotrophic-pathogen-microdochium-nivale
#15
Mateusz Dyda, Iwona Wąsek, Mirosław Tyrka, Maria Wędzony, Magdalena Szechyńska-Hebda
Microdochium nivale is a fungal pathogen that causes yield losses of cereals during winter. Cold hardening under light conditions induces genotype-dependent resistance of a plant to infection. We aim to show how photosystem II (PSII) regulation contributes to plant resistance. Using mapping population of triticale doubled haploid lines, three M. nivale strains and different infection assays, we demonstrate that plants that maintain a higher maximum quantum efficiency of PSII show less leaf damage upon infection...
May 17, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29774540/conservative-thickness-layers-in-mohs-micrographic-surgery
#16
Stanislav N Tolkachjov, Jonathan A Cappel, Elizabeth A Bryant, Christopher B Harmon
BACKGROUND: Mohs micrographic surgery (MMS) is used to treat cutaneous malignancies in locations to maximize tissue sparing. The authors' aim is to demonstrate the utility of conservative thickness layers (CTL) in MMS and review patient and tumor characteristics and the potential anatomic locations where this technique may be most useful. METHODS: We performed a retrospective chart review of patients with tumors treated with CTL in MMS of 339 tumors, recording patient demographics, tumor characteristics, MMS stages for clearance, repairs, complications, and follow-up...
May 17, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29772346/tackling-bioactive-glass-excessive-in-vitro-bioreactivity-preconditioning-approaches-for-cell-culture-tests
#17
REVIEW
Francesca E Ciraldo, Elena Boccardi, Virginia Melli, Fabian Westhauser, Aldo R Boccaccini
Bioactive glasses (BGs) are being increasingly considered for biomedical applications in bone and soft tissue replacement approaches thanks to their ability to form strong bonding with tissues. However, due to their high reactivity once in contact with water-based solutions BGs rapidly exchange ions with the surrounding environment leading in most cases to an undesired increase of the pH under static in vitro conditions (due to alkaline ion "burst release"), making difficult or even impossible to perform cell culture studies...
May 14, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29772248/scaffolds-for-peripheral-nerve-repair-and-reconstruction
#18
REVIEW
Sheng Yi, Lai Xu, Xiaosong Gu
Trauma-associated peripheral nerve defect is a widespread clinical problem. Autologous nerve grafting, the current gold standard technique for the treatment of peripheral nerve injury, has many internal disadvantages. Emerging studies showed that tissue engineered nerve graft is an effective substitute to autologous nerves. Tissue engineered nerve graft is generally composed of neural scaffolds and incorporating cells and molecules. A variety of biomaterials have been used to construct neural scaffolds, the main component of tissue engineered nerve graft...
May 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29771357/a-promotive-effect-for-halofuginone-on-membrane-repair-and-synaptotagmin-7-levels-in-muscle-cells-of-dysferlin-null-mice
#19
Hila Barzilai-Tutsch, Melissa Dewulf, Christophe Lamaze, Gillian Butler Browne, Mark Pines, Orna Halevy
In the absence of dysferlin, skeletal muscle cells fail to reseal properly after injury, resulting in slow progress of the dysferlinopathy muscular dystrophy. Halofuginone, a leading agent in preventing fibrosis in muscular dystrophies, was tested for its effects on membrane resealing post-injury. A hypo-osmotic shock assay on myotubes derived from wild-type and dysferlin-null (dysf-/-) mice revealed that pre-treatment with halofuginone reduces the percentage of membrane-ruptured myotubes only in dysf-/- myotubes...
May 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29770958/effects-of-massage-on-the-expression-of-proangiogenic-markers-in-rat-skin
#20
Katarzyna Ratajczak-Wielgomas, Krzysztof Kassolik, Jedrzej Grzegrzolka, Tomasz Halski, Aleksandra Piotrowska, Katarzyna Mieszala, Iwona Wilk, Marzenna Podhorska-Okolow, Piotr Dziegiel, Waldemar Andrzejewski
INTRODUCTION: Massage is a physiotherapeutic treatment, commonly used in both therapy and restoration of normal body functions. The aim of this work was to determine the effects of skin massage on stimulating the expression of angiogenesis-initiating factors, i.e. VEGF-A, FGF-2 (bFGF) and CD34 and on skin regeneration processes. MATERIAL AND METHODS: The study was conducted on 48 Buffalo strain rats, randomly divided into two groups. In the first group (M, the massaged group), massage was applied five times a week for 7 weeks...
May 17, 2018: Folia Histochemica et Cytobiologica
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