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https://www.readbyqxmd.com/read/28918527/alterations-in-epididymal-proteomics-and-antioxidant-activity-of-mice-exposed-to-fluoride
#1
Zilong Sun, Sujuan Li, Yuxiang Yu, Hongyu Chen, Mohammad Mehdi Ommati, Ram Kumar Manthari, Ruiyan Niu, Jundong Wang
It is well known that high fluoride results in low fertility. Epididymis is the important place for spermatozoa maturation, which is essential for successful fertilization. In the previous studies, fluoride was reported to damage the epididymal structure of mouse and rabbit. However, the mechanism underlying sodium fluoride (NaF)-induced epididymal toxicity has not yet been well elucidated. The aim of this study is to explore the global protein alterations in epididymis of mice exposed to NaF using the iTRAQ technique...
September 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28918264/past-matrix-stiffness-primes-epithelial-cells-and-regulates-their-future-collective-migration-through-a-mechanical-memory
#2
Samila Nasrollahi, Christopher Walter, Andrew J Loza, Gregory V Schimizzi, Gregory D Longmore, Amit Pathak
During morphogenesis and cancer metastasis, grouped cells migrate through tissues of dissimilar stiffness. Although the influence of matrix stiffness on cellular mechanosensitivity and motility are well-recognized, it remains unknown whether these matrix-dependent cellular features persist after cells move to a new microenvironment. Here, we interrogate whether priming of epithelial cells by a given matrix stiffness influences their future collective migration on a different matrix - a property we refer to as the 'mechanical memory' of migratory cells...
September 8, 2017: Biomaterials
https://www.readbyqxmd.com/read/28918236/gene-expression-profiles-of-cell-adhesion-molecules-matrix-metalloproteinases-and-their-tissue-inhibitors-in-canine-oral-tumors
#3
Sirinun Pisamai, Anudep Rungsipipat, Chanin Kalpravidh, Gunnaporn Suriyaphol
Perturbation of cell adhesion can be essential for tumor cell invasion and metastasis, but the current knowledge on the gene expression of molecules that mediate cell adhesion in canine oral tumors is limited. The present study aimed to investigate changes in the gene expression of cell adhesion molecules (E-cadherin or CDH1, syndecan 1 or SDC1, NECTIN2 and NECTIN4), matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), in canine oral tumors, including benign tumors, oral melanoma (OM) and non-tonsillar oral squamous cell carcinoma (OSCC), by quantitative real-time reverse transcription PCR...
September 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28918187/surface-modification-of-titanium-substrates-for-enhanced-osteogenetic-and-antibacterial-properties
#4
Peng Liu, Yansha Hao, Yongchun Zhao, Zhang Yuan, Yao Ding, Kaiyong Cai
The insufficient osseointegration and bacterial infection of titanium and its alloys remain the key challenges in their clinic applications, which may result in failure implantation. To improve osteogenetic and antibacterial properties, TiO2 nanotube arrays were fabricated on titanium substrates for loading of antibacterial drug. Then, TiO2 nanotube arrays were covered with chitosan/sodium alginate multilayer films. The successful construction of this system was verified via scanning electron microscopy and contact angle measurement...
August 26, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28918037/a-novel-pak1-atf2-mir-132-signaling-axis-is-involved-in-the-hematogenous-metastasis-of-gastric-cancer-cells
#5
Funan Liu, Zhenguo Cheng, Xiaodong Li, Yanshu Li, Hongyan Zhang, Jiabin Li, Furong Liu, Huimian Xu, Feng Li
We, along with others, have shown previously that P21-activated kinase 1 (Pak1) plays a pivotal role in gastric cancer progression and metastasis. However, whether Pak1 controls gastric cancer metastasis by regulating microRNAs (miRNAs) has never been explored. Here, we report a novel mechanism of Pak1 in tumor metastasis. A detailed examination revealed that Pak1 interacts with and phosphorylates the serine 62 residue of ATF2 and then blocks its translocation into the nucleus. We also confirmed that ATF2 binds to the promoter of miR-132 and tightly regulates its transcription, thus explaining the regulatory mechanism of miR-132 by Pak1...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917581/an-engineering-insight-into-the-relationship-of-selective-cytoskeletal-impairment-and-biomechanics-of-hela-cells
#6
Daniele Borin, Luca Puzzi, Valentina Martinelli, Matteo Cibinel, Romano Lapasin, Orfeo Sbaizero
It is widely accepted that the pathological state of cells is characterized by a modification of mechanical properties, affecting cellular shape and viscoelasticity as well as adhesion behaviour and motility. Thus, assessing these parameters could represent an interesting tool to monitor disease development and progression, but also the effects of drug treatments. Since biomechanical properties of cells are strongly related to cytoskeletal architecture, in this work we extensively studied the effects of selective impairments of actin microfilaments and microtubules on HeLa cells through force-deformation curves and stress relaxation tests with atomic force microscopy...
September 8, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28917555/incidence-and-significance-of-adhesions-encountered-during-epicardial-mapping-and-ablation-of-ventricular-tachycardia-in-patients-with-no-history-of-prior-cardiac-surgery-or-pericarditis
#7
Anthony Li, Eric Buch, Noel G Boyle, Kalyanam Shivkumar, Jason S Bradfield
BACKGROUND: Pericardial adhesions can prevent epicardial access and restrict catheter movement during mapping and ablation of ventricular tachycardia (VT) . The incidence of adhesions in patients without prior cardiac surgery or clinically evident pericarditis is not known. OBJECTIVE: To describe the incidence of pericardial adhesions in patients without prior cardiac surgery or pericarditis and explore their impact. METHODS: A retrospective search of our ablation database containing patients who underwent epicardial ablation for VT was undertaken...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917306/evaluation-of-surface-antigen-tf1-17-in-feline-tritrichomonas-foetus-isolates
#8
E N Gould, L B Corbeil, S A Kania, M K Tolbert
Tritrichomonas foetus (T. foetus) is a flagellated protozoa that infects the distal ileum and proximal colon of domestic cats, as well as the urogenital tract of cattle. Feline trichomonosis is recognized as a prevalent cause of chronic diarrhea in cats worldwide. The suspected route of transmission is fecal-oral, with cats in densely crowded environments at highest risk for infection. Thus, the recommended strategy for minimizing spread of infection is to identify and isolate T. foetus-positive cats from the general population...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28917301/cysteine-protease-30-cp30-contributes-to-adhesion-and-cytopathogenicity-in-feline-tritrichomonas-foetus
#9
Emily N Gould, Richard Giannone, Stephen A Kania, M Katherine Tolbert
Tritrichomonas foetus (T. foetus) is a flagellated protozoan parasite that is recognized as a significant cause of diarrhea in domestic cats with a prevalence rate as high as 30%. No drugs have been shown to consistently eliminate T. foetus infection in all cats. Cysteine proteases (CPs) have been identified as mediators of T. foetus-induced adhesion-dependent cytotoxicity to the intestinal epithelium. These CPs represent novel targets for the treatment of feline trichomonosis. However, cats also produce CPs that are part of life-critical systems...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28917158/quantitative-trait-locus-mapping-in-mice-identifies-phospholipase-pla2g12a-as-novel-atherosclerosis-modifier
#10
Alexandros Nicolaou, Bernd H Northoff, Kristina Sass, Jana Ernst, Alexander Kohlmaier, Knut Krohn, Christian Wolfrum, Daniel Teupser, Lesca M Holdt
BACKGROUND AND AIMS: In a previous work, a female-specific atherosclerosis risk locus on chromosome (Chr) 3 was identified in an intercross of atherosclerosis-resistant FVB and atherosclerosis-susceptible C57BL/6 (B6) mice on the LDL-receptor deficient (Ldlr(-/-)) background. It was the aim of the current study to identify causative genes at this locus. METHODS: We established a congenic mouse model, where FVB.Chr3(B6/B6) mice carried an 80 Mb interval of distal Chr3 on an otherwise FVB...
September 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28917149/a-comparison-study-between-electrospun-polycaprolactone-and-piezoelectric-poly-3-hydroxybutyrate-co-3-hydroxyvalerate-scaffolds-for-bone-tissue-engineering
#11
Svetlana N Gorodzha, Albert R Muslimov, Dina S Syromotina, Alexander S Timin, Nikolai Y Tcvetkov, Kirill V Lepik, Aleksandra V Petrova, Maria A Surmeneva, Dmitry A Gorin, Gleb B Sukhorukov, Roman A Surmenev
In this study, bone scaffolds composed of polycaprolactone (PCL), piezoelectric poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and a combination of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and silicate containing hydroxyapatite (PHBV-SiHA) were successfully fabricated by a conventional electrospinning process. The morphological, chemical, wetting and biological properties of the scaffolds were examined. All fabricated scaffolds are composed of randomly oriented fibres with diameters from 800nm to 12μm...
September 5, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28917091/recovery-from-diabetes-insipidus-and-preservation-of-thyroid-function-after-craniopharyngioma-removal-and-pituitary-stalk-sectioning
#12
Yoshikazu Ogawa, Kuniyasu Niizuma, Teiji Tominaga
OBJECTIVES: Craniopharyngioma is a slow-growing tumor, but long-term tumor control with maintenance of quality of life is sometimes very difficult to achieve, and hypothalamic disturbance should be strictly avoided in the treatment. However, management of the pituitary gland and/or pituitary stalk varies among surgeons and institutions. PATIENTS AND METHODS: This retrospective review identified 44 patients, 24 males and 20 females with craniopharyngiomas who were initially treated by surgery through the extended transsphenoidal approach with pituitary stalk sectioning at a single institute...
September 9, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28917002/comparison-on-effectiveness-of-trans-septal-suturing-versus-nasal-packing-after-septoplasty-a-systematic-review-and-meta-analysis
#13
Wei-Wei Wang, Bao-Cheng Dong
This systematic review applied meta-analytic procedures to evaluate the curative effect of trans-septal suturing versus nasal packing after septoplasty. Computerized search of the published literature in PubMed, EMBASE, CENTRAL, Cochrane Database of Systematic Reviews, WANFANG, CNKI databases. Randomized trials investigating trans-septal suturing versus nasal packing following septoplasty in patients with deviated nasal septum. Adhesion, septal hematoma, bleeding, septal perforation, infection, pain, headache, or residual septal deviation per randomized patients...
September 15, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28916983/surface-changes-of-nanotopography-by-carbon-ion-implantation-to-enhance-the-biocompatibility-of-silicone-rubber-an-in-vitro-study-of-the-optimum-ion-fluence-and-adsorbed-protein
#14
Xianhui Li, Xin Zhou, Yao Chen, Shu Yu, Xin Chen, Xin Xia, Xiaohua Shi, Yiming Zhang, Dongli Fan
Lower cellular adhesion and dense fibrous capsule formation around silicone breast implants caused by lower biocompatibility is a serious clinical problem. Preliminary work has shown that ion implantation enhances cell adhesion. Whether the biocompatibility is further enhanced by higher doses of carbon ion implantation and the mechanism by which ion implantation enhances biocompatibility remain unclear. In this study, five doses of carbon ions, which gradually increase, were implanted on the surface of silicone rubber and then the surface characteristics were surveyed...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28916980/pharmacokinetics-of-panax-notoginseng-saponins-in-adhesive-and-normal-preparation-of-fufang-danshen
#15
Xiao-Nan Chen, Dan-Qi Li, Meng-di Zhao, Gang-Yan Yu, Shou-Ying Du, Yang Lu, Jie Bai, Peng-Yue Li, Ya-Li Wu, Zhi-Hao Tian, Yan-Ying Zeng
BACKGROUND AND OBJECTIVE: Fufang Danshen formula, a famous Chinese patent medicine containing Salvia miltiorrhiza, Panax notoginseng and borneol, has been widely used in the treatment of coronary heart disease. The application is restricted by low bioavailability partly due to Panax notoginseng saponins (PNS) instability and low in vivo absorption. Thus, adhesive pellets were developed to improve bioavailability. The objectives of the present study were to evaluate the adhesive preparation by describing PNS's plasma pharmacokinetics in vivo and compare adhesive micro pills with normal preparation...
September 15, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28916920/does-delayed-esophagectomy-after-endoscopic-resection-affect-outcomes-in-patients-with-stage-t1-esophageal-cancer-a-propensity-score-based-analysis
#16
Shengfei Wang, Yangle Huang, Juntao Xie, Lingdun Zhuge, Longlong Shao, Jiaqing Xiang, Yawei Zhang, Yihua Sun, Hong Hu, Sufeng Chen, Toni Lerut, James D Luketich, Jie Zhang, Haiquan Chen
BACKGROUND: Although endoscopic resection (ER) may be sufficient treatment for early-stage esophageal cancer, additional treatment is recommended when there is a high risk of cancer recurrence. It is unclear whether delaying esophagectomy by performing and assessing the success of ER affects outcomes as compared with immediate esophagectomy without ER. Additionally, long-term survival after sequential ER and esophagectomy required further investigation. METHODS: Between 2011 and 2015, 48 patients with stage T1 esophageal cancer underwent esophagectomy after ER with curative intent at our institution...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916868/laparoscopic-liver-resection-using-a-monopolar-soft-coagulation-device-to-provide-maximum-intraoperative-bleeding-control-for-the-treatment-of-hepatocellular-carcinoma
#17
Mitsuo Miyazawa, Masayasu Aikawa, Katsuya Okada, Yukihiro Watanabe, Kojun Okamoto, Isamu Koyama
BACKGROUND: The popularity of laparoscopic liver resection (LLR) is spreading, worldwide, because the intraoperative blood loss is less than for open hepatectomy and it is associated with a shorter hospitalization period [1-6]. During LLR, intraoperative hemostasis is difficult to achieve, unlike during laparotomy where bleeding can be stopped instantly [7-10]. Our LLR method for the treatment of hepatocellular carcinoma (HCC) includes maximal control of intraoperative bleeding using a monopolar soft-coagulation device...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916859/near-infrared-cholecystocholangiography-with-direct-intragallbladder-indocyanine-green-injection-preliminary-clinical-results
#18
Yu-Yin Liu, Chien-Hung Liao, Michele Diana, Shang-Yu Wang, Seong-Ho Kong, Chun-Nan Yeh, Bernard Dallemagne, Jacques Marescaux, Ta-Sen Yeh
BACKGROUND: Near-infrared (NIR) fluorescence cholangiography by systemic administration of indocyanine green (ICG) enhances the visualization of the biliary tree anatomy. However, the simultaneous enhancement of liver parenchyma can disturb the visualization of critical details. We herein proposed a new technique of NIR cholecystocholangiography by intragallbladder ICG injection to increase the safety during laparoscopic cholecystectomy. METHODS: A total of 46 patients scheduled for laparoscopic cholecystectomy for symptomatic lithiasis (n = 21) or cholecystitis (n = 25) were enrolled...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916833/inhibition-of-wnt-%C3%AE-catenin-pathway-and-histone-acetyltransferase-activity-by-rimonabant-a-therapeutic-target-for-colon-cancer
#19
Maria Chiara Proto, Donatella Fiore, Chiara Piscopo, Silvia Franceschelli, Valentina Bizzarro, Chiara Laezza, Gianluigi Lauro, Alessandra Feoli, Alessandra Tosco, Giuseppe Bifulco, Gianluca Sbardella, Maurizio Bifulco, Patrizia Gazzerro
In a high percentage (≥85%) of both sporadic and familial adenomatous polyposis forms of colorectal cancer (CRC), the inactivation of the APC tumor suppressor gene initiates tumor formation and modulates the Wnt/β-Catenin transduction pathways involved in the control of cell proliferation, adhesion and metastasis. Increasing evidence showed that the endocannabinoids control tumor growth and progression, both in vitro and in vivo. We evaluated the effect of Rimonabant, a Cannabinoid Receptor 1 (CB1) inverse agonist, on the Wnt/β-Catenin pathway in HCT116 and SW48 cell lines carrying the genetic profile of metastatic CRC poorly responsive to chemotherapies...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916744/hydrogen-sulphate-based-ionic-liquid-assisted-electro-polymerization-of-pedot-catalyst-material-for-high-efficiency-photoelectrochemical-solar-cells
#20
Buket Bezgin Carbas, Mahir Gulen, Merve Celik Tolu, Savas Sonmezoglu
This work reports the facile, one-step electro-polymerization synthesis of poly (3,4-ethylenedioxythiophene) (PEDOT) using a 1-ethyl-3-methylimidazolium hydrogen sulphate (EMIMHSO4) ionic liquid (IL) and, for the first time its utilization as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). Using the IL doped PEDOT as CE, we effectively improve the solar cell efficiency to as high as 8.52%, the highest efficiency reported in 150 mC/cm(2) charge capacity, an improvement of ~52% over the control device using the bare PEDOT CE (5...
September 15, 2017: Scientific Reports
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