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https://www.readbyqxmd.com/read/28110460/ability-of-rf5-and-rf6-to-restore-fertility-of-chinsurah-boro-ii-type-cytoplasmic-male-sterile-oryza-sativa-ssp-japonica-lines
#1
Honggen Zhang, Jianlan Che, Yongshen Ge, Yan Pei, Lijia Zhang, Qiaoquan Liu, Minghong Gu, Shuzhu Tang
BACKGROUND: Three-line Oryza sativa (ssp. japonica) hybrids have been developed mainly using Chinsurah Boro II (BT)-type cytoplasmic male sterility (CMS). The Rf1 gene restores the fertility of BT-type CMS lines, and is the only fertility restorer gene (Rf) that has been used to produce three-line japonica hybrids. Using more Rf genes to breed BT-type restorer lines may broaden the genetic diversity of the restorer lines, and represents a viable approach to improve the heterosis level of BT-type japonica hybrids...
December 2017: Rice
https://www.readbyqxmd.com/read/28110458/experimental-evaluation-of-new-chitin-chitosan-graft-for-duraplasty
#2
M Pogorielov, A Kravtsova, G C Reilly, V Deineka, G Tetteh, O Kalinkevich, O Pogorielova, R Moskalenko, G Tkach
Natural materials such as collagen and alginate have promising applications as dural graft substitutes. These materials are able to restore the dural defect and create optimal conditions for the development of connective tissue at the site of injury. A promising material for biomedical applications is chitosan-a linear polysaccharide obtained by the deacetylation of chitin. It has been found to be nontoxic, biodegradable, biofunctional and biocompatible in addition to having antimicrobial characteristics. In this study we designed new chitin-chitosan substitutes for dura mater closure and evaluated their effectiveness and safety...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28110407/in-vitro-performance-of-cad-cam-fabricated-implant-supported-temporary-crowns
#3
Martin Rosentritt, Philipp Raab, Sebastian Hahnel, Matthias Stöckle, Verena Preis
OBJECTIVES: The aim of this study was to investigate the in-vitro performance and fracture resistance of a temporary computer-aided designed and computer-aided manufactured polymethylmethacrylate (CAD/CAM-PMMA) material as implant or tooth-supported single crown with respect to the clinical procedure (permanently bonded/temporarily cemented). MATERIALS AND METHODS: Sixty-four crowns were fabricated on implants or human molar teeth simulating (a) labside procedure on prefabricated titanium-bonding base ([TiBase] implant crown bonded in laboratory, screwed chairside), (b) labside procedure ([LAB] standard abutment and implant crown bonded in laboratory, screwed chairside), (c) chairside procedure ([CHAIR] implant crown bonded to abutment), and (d) reference ([TOOTH] crowns luted on prepared human teeth)...
January 21, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28110324/setting-kinetics-and-mechanical-properties-of-flax-fibre-reinforced-glass-ionomer-restorative-materials
#4
Abou Neel Ensanya Ali, Young Anne M
Regardless of the excellent properties of glass ionomer cements, their poor mechanical properties limit their applications to non-load bearing areas. This study aimed to investigate the effect of incorporated short, chopped and randomly distributed flax fibers (0, 0.5, 1, 2.5, 5 and 25 wt%) on setting reaction kinetics, and mechanical and morphological properties of glass ionomer cements. Addition of flax fibers did not significantly affect the setting reaction extent. According to their content, flax fibers increased the compressive (from 148 to 250 MPa) and flexure strength (from 20 to 42 MPa)...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28110219/tgf-%C3%AE-engineered-mesenchymal-stem-cells-tgf-%C3%AE-mscs-for-treatment-of-type-1-diabetes-t1d-mice-model
#5
Saeed Daneshmandi, Mohammad Hossein Karimi, Ali Akbar Pourfathollah
OBJECTIVE: Mesenchymal stem cells (MSCs) are advantageous candidates for cell therapy of Type 1 diabetes (T1D). Considering immunomodulatory effect of MSC, in this study, we engineered MSCs with TGF-β gene to increase MSC potency for T1D therapy in mouse model. MATERIALS AND METHODS: Two plans were designed for prevention and treatment of diabetes, respectively. In both of them, MSCs were injected i.v. and then, the diabetes features including serum insulin, blood glucose, glucose tolerance, splenocytes proliferation, and IL-4/IFN-γ production were evaluated...
January 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28110193/effects-of-polyphenol-compounds-melanin-on-nafld-nash-prevention
#6
Natalia Belemets, Nazarii Kobyliak, Oleksandr Virchenko, Tetyana Falalyeyeva, Tsyryuk Olena, Petro Bodnar, Oleksiy Savchuk, Tetyana Galenova, Martin Caprnda, Luis Rodrigo, Lubomir Skladany, Delian Delev, Radka Opatrilova, Peter Kruzliak, Tetyana Beregova, Lyudmyla Ostapchenko
BACKGROUND: One of the pathogenic mechanisms of the progression non-alcoholic liver disease (NAFLD) to nonalcoholic steatohepatitis (NASH) is the accumulation of reactive oxygen species (ROS). So, antioxidant therapy is necessary for successful treatment of the liver injury. We have paid attention to melanin produced by yeast Nadsoniella nigra strain X-1 as novel antioxidant and anti-inflammatory agents with low toxicity. In current study we aimed to investigate the preventive effect of melanin on the monosodium glutamate (MSG) induced NAFLD model in rats...
January 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28110171/long-term-usability-and-bio-integration-of-polyimide-based-intra-neural-stimulating-electrodes
#7
S Wurth, M Capogrosso, S Raspopovic, J Gandar, G Federici, N Kinany, A Cutrone, A Piersigilli, N Pavlova, R Guiet, G Taverni, J Rigosa, P Shkorbatova, X Navarro, Q Barraud, G Courtine, S Micera
Stimulation of peripheral nerves has transiently restored lost sensation and has the potential to alleviate motor deficits. However, incomplete characterization of the long-term usability and bio-integration of intra-neural implants has restricted their use for clinical applications. Here, we conducted a longitudinal assessment of the selectivity, stability, functionality, and biocompatibility of polyimide-based intra-neural implants that were inserted in the sciatic nerve of twenty-three healthy adult rats for up to six months...
January 13, 2017: Biomaterials
https://www.readbyqxmd.com/read/28110103/the-retromer-complex-system-in-a-transgenic-mouse-model-of-ad-influence-of-age
#8
Jin Chu, Domenico Praticò
Deficiencies of the retrograde transport mediated by the retromer complex have been described in Alzheimer's disease (AD). Genetic manipulation of retromer modulates brain amyloidosis in Tg2576 mice. However, whether the complex is altered during the development of the AD-like phenotype remains unknown. In this study we assayed the expression levels of the vacuolar sorting protein 35 (VPS35), VPS26, VPS29, and its cargo proteins, cation independent mannose 6-phosphate receptor, sortilin-related receptor in brains of Tg2576 and controls at the ages of 3, 8, and 14 months...
January 3, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28110070/mesoscale-porosity-at-the-dentin-enamel-junction-could-affect-the-biomechanical-properties-of-teeth
#9
Elsa Vennat, Wenlong Wang, Rachel Genthial, Bertrand David, Elisabeth Dursun, Aurélien Gourrier
: In this paper, the 3D-morphology of the porosity in dentin is investigated within the first 350 μm from the dentin-enamel junction (DEJ) by fluorescence confocal laser scanning microscopy (CLSM). We found that the porous microstructure exhibits a much more complex geometry than classically described, which may impact our fundamental understanding of the mechanical behavior of teeth and could have practical consequences for dental surgery. Our 3D observations reveal numerous fine branches stemming from the tubules which may play a role in cellular communication or mechanosensing during the early stages of dentinogenesis...
January 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28109959/crispr-cas9-mediated-genome-editing-as-a-therapeutic-approach-for-leber-congenital-amaurosis-10
#10
Guo-Xiang Ruan, Elizabeth Barry, Dan Yu, Michael Lukason, Seng H Cheng, Abraham Scaria
As the most common subtype of Leber congenital amaurosis (LCA), LCA10 is a severe retinal dystrophy caused by mutations in the CEP290 gene. The most frequent mutation found in patients with LCA10 is a deep intronic mutation in CEP290 that generates a cryptic splice donor site. The large size of the CEP290 gene prevents its use in adeno-associated virus (AAV)-mediated gene augmentation therapy. Here, we show that targeted genomic deletion using the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system represents a promising therapeutic approach for the treatment of patients with LCA10 bearing the CEP290 splice mutation...
January 18, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28109822/extinction-of-relapsed-fear-does-not-require-the-basolateral-amygdala
#11
Nura W Lingawi, R Fredrick Westbrook, Vincent Laurent
It is well established that extinguished fears are restored with the passage of time or a change in physical context. These fear restoration phenomena are believed to mimic the conditions under which relapse occurs in patients that have been treated for anxiety disorders by means of cue-exposure therapy. Here, we used a rodent model to extinguish relapsed fear and assess whether this new extinction prevents further relapse. We found that activity in the basolateral amygdala (BLA) is required to initially extinguish conditioned fear, but this activity was not necessary to subsequently extinguish relapsed fear...
January 18, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28109806/momordica-charantia-polysaccharides-ameliorate-oxidative-stress-hyperlipidemia-inflammation-and-apoptosis-during-myocardial-infarction-by-inhibiting-the-nf-%C3%AE%C2%BAb-signaling-pathway
#12
Mohammad Raish
The polysaccharide extract of Momordica charantia has various biological activities; however, its effect on endothelial dysfunction in myocardial infarction remains unclear. To elucidate this, myocardial infarction was induced in rats using isoproterenol (ISP). Pretreatment with M. charantia polysaccharides (MCP; 150 or 300mg/kg) for 25days significantly inhibited increases in heart weight, the heart-weight-to-body-weight ratio, and infarction size, and ameliorated the increased serum levels of aspartate transaminase, creatine kinase, lactate dehydrogenase, total cholesterol, triglycerides, very-low-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol...
January 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28109423/moving-beyond-the-debate-over-restricting-sugary-drinks-in-the-supplemental-nutrition-assistance-program
#13
EDITORIAL
Marlene B Schwartz
To address the dual problem of food insecurity and poor nutrition, the U.S. Department of Agriculture has recently revised the nutrition standards for nearly all of its federal food programs to align with the Dietary Guidelines for Americans. One notable exception is the Supplemental Nutrition Assistance Program (SNAP). Policy proposals to restrict SNAP benefits based on nutrition quality (e.g., excluding sugary drinks) have generated controversy and have polarized previous research and advocacy allies. This essay presents many of the issues that have emerged, which include challenges about the feasibility, justification, and effectiveness of restricting benefits; the risk of a slippery slope; concerns about participant dignity; and finally, distrust about the motives behind promoting and opposing a policy change...
February 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28109076/microrna-409-3p-represses-glioma-cell-invasion-and-proliferation-by-targeting-high-mobility-group-nucleosome-binding-domain-5
#14
Yidong Cao, Liang Zhang, Minghao Wei, Xue Jiang, Dong Jia
Emerging evidence has suggested that aberrantly expressed microRNAs (miRNAs) are associated with glioma development andprogression. The aberrant expression of miR-409-3p has been reported in several human cancers. However, little is known about the function of miR-409-3p in gliomas. The aim of this study was to investigate the specific role and molecular mechanism of miR-409-3p in gliomas. In the present study, we found that miR-409-3p was downregulated in glioma tissue and cell lines. Overexpression of miR-409-3p inhibited glioma cell invasion and proliferation, whereas suppression of miR-409-3p promoted glioma cell invasion and proliferation...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28108988/blood-brain-barrier-closure-time-after-controlled-ultrasound-induced-opening-is-independent-of-opening-volume
#15
Meaghan A O'Reilly, Olivia Hough, Kullervo Hynynen
OBJECTIVES: Microbubble-mediated focused ultrasound (US) opening of the blood-brain barrier (BBB) has shown promising results for the treatment of brain tumors and conditions such as Alzheimer disease. Practical clinical implementation of focused US treatments would aim to treat a substantial portion of the brain; thus, the safety of opening large volumes must be investigated. This study investigated whether the opened volume affects the time for the BBB to be restored after treatment...
January 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28108926/prospective-associations-between-peer-victimization-and-dispositional-mindfulness-in-early-adolescence
#16
Nathaniel R Riggs, Samantha M Brown
Peer victimization is associated with several mental health and behavioral problems during childhood and adolescence. Identifying prospective associations between victimization and factors known to protect against these problems may ultimately contribute to more precise developmental models for victimization's role in behavioral and mental health. This study tested prospective associations between peer victimization and dispositional mindfulness, defined by non-judgmental and accepting awareness of the constant stream of lived experience, during early adolescence...
January 20, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28108915/microbial-changes-linked-to-the-accelerated-degradation-of-the-herbicide-atrazine-in-a-range-of-temperate-soils
#17
R L Yale, M Sapp, C J Sinclair, J W B Moir
Accelerated degradation is the increased breakdown of a pesticide upon its repeated application, which has consequences for the environmental fate of pesticides. The herbicide atrazine was repeatedly applied to soils previously untreated with s-triazines for >5 years. A single application of atrazine, at an agriculturally relevant concentration, was sufficient to induce its rapid dissipation. Soils, with a range of physico-chemical properties and agricultural histories, showed similar degradation kinetics, with the half-life of atrazine decreasing from an average of 25 days after the first application to <2 days after the second...
January 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28108860/early-cardioversion-in-atrial-fibrillation-earlier-is-better-but-not-always-and-maybe-not-immediately
#18
REVIEW
Paloma G Piña, Alexandru B Chicos
Atrial fibrillation (AF) is the most common cardiac arrhythmia in humans. One of its important features is the tendency to become more persistent over time, even in the absence of underlying progressive heart disease. Conversion and maintenance of sinus rhythm by pharmacological or electrical methods become increasingly difficult the longer the arrhythmia persists. Electrical, mechanical, structural, and autonomic remodeling processes have been implicated in the mechanisms of AF initiation, perpetuation, and progression...
January 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28108624/inflammatory-molecule-psgl-1-deficiency-activates-macrophages-to-promote-colorectal-cancer-growth-through-nf-kappab-signaling
#19
Jiangchao Li, Zeqi Zhou, Xiaohan Zhang, Li Zheng, Dan He, Yuxiang Ye, Qian-Qian Zhang, Cui-Ling Qi, Xiao-Dong He, Chen Yu, Chun-Kui Shao, Liang Qiao, Lijing Wang
: P-selectin glycoprotein ligand 1 (SELPLG/PSGL-1) is an inflammatory molecule that is functionally related to immune cell differentiation and leukocyte mobilization. However, the role of PSGL-1 in tumor development remains unknown. Therefore, this study investigates the mechanistic role of PSGL-1 in the development of intestinal tumors in colorectal cancer (CRC). ApcMin/+ mice, are highly susceptible to spontaneous intestinal adenoma formation, and were crossbred with PSGL1-null mice to generate compound transgenic mice with a ApcMin/+;PSGL-1-/- genotype...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108510/bone-metastasis-of-prostate-cancer-can-be-therapeutically-targeted-at-the-tbx2-wnt-signaling-axis
#20
Srinivas Nandana, Manisha Tripathi, Peng Duan, Chia-Yi Chu, Rajeev Mishra, Chunyan Liu, Renjie Jin, Hironobu Yamashita, Majd Zayzafoon, Neil A Bhowmick, Haiyen E Zhau, Robert J Matusik, Leland W K Chung
Identification of factors that mediate visceral and bone metastatic spread and subsequent bone remodeling events is highly relevant to successful therapeutic intervention in advanced human prostate cancer (PCa). TBX2, a T-box family transcription factor that negatively regulates cell cycle inhibitor p21, plays critical roles during embryonic development, and recent studies have highlighted its role in cancer. Here we report that TBX2 is overexpressed in human PCa specimens and bone metastases from xenograft mouse models of human PCa...
January 20, 2017: Cancer Research
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