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https://www.readbyqxmd.com/read/27933465/nano-mechanical-characterization-of-ataxia-telangiectasia-cells-treated-with-dexamethasone
#1
Michele Menotta, Sara Biagiotti, Giulia Bartolini, Bianchi Marzia, Sara Orazi, Aldo Germani, Luciana Chessa, Mauro Magnani
Ataxia telangiectasia is a rare genetic disease and no therapy is currently available. Glucocorticoid analogues have been shown to improve the neurological symptoms of treated patients. In the present study ataxia telangiectasia and wild type cells were used as a cellular model and treated with dexamethasone. The cells were subsequently investigated for membrane and whole cell mechanical properties by atomic force microscopy. In addition, cytoskeleton protein dynamics and nuclear shapes were assayed by fluorescence microscopy, while western blots were used to assess actin and tubulin content...
December 8, 2016: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27933280/bone-imaging-in-prostate-cancer-the-evolving-roles-of-nuclear-medicine-and-radiology
#2
REVIEW
Gary J R Cook, Gurdip Azad, Anwar R Padhani
The bone scan continues to be recommended for both the staging and therapy response assessment of skeletal metastases from prostate cancer. However, it is widely recognised that bone scans have limited sensitivity for disease detection and is both insensitive and non-specific for determining treatment response, at an early enough time point to be clinically useful. We, therefore, review the evolving roles of nuclear medicine and radiology for this application. We have reviewed the published literature reporting recent developments in imaging bone metastases in prostate cancer, and provide a balanced synopsis of the state of the art...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27933067/peptide-idr-1002-inhibits-nf-%C3%AE%C2%BAb-nuclear-translocation-by-inhibition-of-i%C3%AE%C2%BAb%C3%AE-degradation-and-activates-p38-erk1-2-msk1-dependent-creb-phosphorylation-in-macrophages-stimulated-with-lipopolysaccharide
#3
Alejandro Huante-Mendoza, Octavio Silva-García, Javier Oviedo-Boyso, Robert E W Hancock, Víctor M Baizabal-Aguirre
The inflammatory response is a critical molecular defense mechanism of the innate immune system that mediates the elimination of disease-causing bacteria. Repair of the damaged tissue, and the reestablishment of homeostasis, must be accomplished after elimination of the pathogen. The innate defense regulators (IDRs) are short cationic peptides that mimic natural host defense peptides and are effective in eliminating pathogens by enhancing the activity of the immune system while controlling the inflammatory response...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27932553/normalization-matters-tracking-the-best-strategy-for-sperm-mirna-quantification
#4
Celia Corral-Vazquez, Joan Blanco, Albert Salas-Huetos, Francesca Vidal, Ester Anton
STUDY QUESTION: What is the most reliable normalization strategy for sperm microRNA (miRNA) quantitative Reverse Transcription Polymerase Chain Reactions (qRT-PCR) using singleplex assays? SUMMARY ANSWER: The use of the average expression of hsa-miR-100-5p and hsa-miR-30a-5p as sperm miRNA qRT-PCR data normalizer is suggested as an optimal strategy. WHAT IS KNOWN ALREADY: Mean-centering methods are the most reliable normalization strategies for miRNA high-throughput expression analyses...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27932032/the-application-of-in-situ-analytical-transmission-electron-microscopy-to-the-study-of-preferential-intergranular-oxidation-in-alloy-600
#5
M G Burke, G Bertali, E Prestat, F Scenini, S J Haigh
In situ analytical transmission electron microscopy (TEM) can provide a unique perspective on dynamic reactions in a variety of environments, including liquids and gases. In this study, in situ analytical TEM techniques have been applied to examine the localised oxidation reactions that occur in a Ni-Cr-Fe alloy, Alloy 600, using a gas environmental cell at elevated temperatures. The initial stages of preferential intergranular oxidation, shown to be an important precursor phenomenon for intergranular stress corrosion cracking in pressurized water reactors (PWRs), have been successfully identified using the in situ approach...
November 21, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/27929073/rna-sequencing-of-chorionic-villi-from-recurrent-pregnancy-loss-patients-reveals-impaired-function-of-basic-nuclear-and-cellular-machinery
#6
Siim Sõber, Kristiina Rull, Mario Reiman, Piret Ilisson, Pirkko Mattila, Maris Laan
Recurrent pregnancy loss (RPL) concerns ~3% of couples aiming at childbirth. In the current study, transcriptomes and miRNomes of 1(st) trimester placental chorionic villi were analysed for 2 RPL cases (≥6 miscarriages) and normal, but electively terminated pregnancies (ETP; n = 8). Sequencing was performed on Illumina HiSeq 2000 platform. Differential expression analyses detected 51 (27%) transcripts with increased and 138 (73%) with decreased expression in RPL compared to ETP (DESeq: FDR P < 0...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27928708/withania-somnifera-reverses-transactive-response-dna-binding-protein-43-proteinopathy-in-a-mouse-model-of-amyotrophic-lateral-sclerosis-frontotemporal-lobar-degeneration
#7
Kallol Dutta, Priyanka Patel, Reza Rahimian, Daniel Phaneuf, Jean-Pierre Julien
Abnormal cytoplasmic mislocalization of transactive response DNA binding protein 43 (TARDBP or TDP-43) in degenerating neurons is a hallmark of amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration with ubiquitin-positive inclusions (FTLD-U). Our previous work suggested that nuclear factor kappa B (NF-κB) may constitute a therapeutic target for TDP-43-mediated disease. Here, we investigated the effects of root extract of Withania somnifera (Ashwagandha), an herbal medicine with anti-inflammatory properties, in transgenic mice expressing a genomic fragment encoding human TDP-43(A315T) mutant...
December 7, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/27928699/estimating-the-oncotypedx-score-validation-of-an-inexpensive-estimation-tool
#8
Anne A Eaton, Catherine E Pesce, James O Murphy, Michelle M Stempel, Sujata M Patil, Edi Brogi, Clifford A Hudis, Mahmoud El-Tamer
BACKGROUND: OncotypeDX, a multi-gene expression assay, has been incorporated into clinical practice as a prognostic and predictive tool. However, its use in resource-constrained international healthcare systems is limited. Here we develop and validate a simplified model using clinicopathologic criteria to predict OncotypeDX score. METHODS: Patients with estrogen receptor (ER) and/or progesterone receptor (PR)-positive and HER2-negative invasive ductal carcinoma for whom the OncotypeDX test was successfully performed between 09/2008 and 12/2011 were retrospectively identified...
December 7, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27928132/improved-fret-biosensor-for-the-measurement-of-bcr-abl-activity-in-chronic-myeloid-leukemia-cells
#9
Mika Horiguchi, Mari Fujioka, Takeshi Kondo, Yoichiro Fujioka, Xinxin Li, Kosui Horiuchi, Aya O Satoh, Prabha Nepal, Shinya Nishide, Asuka Nanbo, Takanori Teshima, Yusuke Ohba
Although the co-development of companion diagnostics with molecular targeted drugs is desirable, truly efficient diagnostics are limited to diseases in which chromosomal translocations or overt mutations are clearly correlated with drug efficacy. Moreover, even for such diseases, few methods are available to predict whether drug administration is effective for each individual patient whose disease is expected to respond to the drug(s). We have previously developed a biosensor based on the principle of Förster resonance energy transfer (FRET) to measure the activity of the tyrosine kinase BCR-ABL and its response to drug treatment in patient-derived chronic myeloid leukemia cells...
December 8, 2016: Cell Structure and Function
https://www.readbyqxmd.com/read/27927244/wuzi-yanzong-pill-a-chinese-polyherbal-formula-alleviates-testicular-damage-in-mice-induced-by-ionizing-radiation
#10
Hai-Jie Ji, Dong-Mei Wang, Yu-Peng Wu, Yan-Yan Niu, Li-Li Jia, Bi-Wang Liu, Qian-Jin Feng, Ma-Li Feng
BACKGROUND: Chinese medicine Wuzi Yanzong pill (WZYZP) was firstly documented in ancient Chinese medical works "She Sheng Zhong Miao Fang" by Shi-Che Zhang in 1550 AD. The traditional herbal formula is widely used in treating nephrasthenia lumbago, prospermia, erectile dysfunction and male sterility. The present study was to explore the effects of WZYZP on ionizing irradiation-induced testicular damage in mice. METHODS: The pelvic region of male mice was exposed to X-rays for inducing testicular damage...
December 7, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27927166/range-wide-genetic-structure-and-demographic-history-in-the-bat-ectoparasite-cimex-adjunctus
#11
Benoit Talbot, Maarten J Vonhof, Hugh G Broders, Brock Fenton, Nusha Keyghobadi
BACKGROUND: Evolutionary histories of parasite and host populations are intimately linked such that their spatial genetic structures may be correlated. While these processes have been relatively well studied in specialist parasites and their hosts, less is known about the ecological and evolutionary consequences of relationships between generalist ectoparasites and their hosts. The aim of this study was to investigate the genetic structure and demographic history of a bat ectoparasite, Cimex adjunctus, whose host affinity is weak but the biology of the potential hosts have been well studied...
December 7, 2016: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/27927076/evidence-of-biological-activity-of-mentha-species-extracts-on-apoptotic-and-autophagic-targets-on-murine-raw264-7-and-human-u937-monocytic-cells
#12
Fatiha Brahmi, Samia Hadj-Ahmed, Amira Zarrouk, Maryem Bezine, Thomas Nury, Khodir Madani, Mohamed Chibane, Anne Vejux, Pierre Andreoletti, Lila Boulekbache-Makhlouf, Gérard Lizard
CONTEXT: Mints (Lamiaceae) are used as traditional remedies for the treatment of several diseases. Their extracts are recognized as anti-inflammatory compounds. OBJECTIVE: This study characterized the cytotoxic effects of Mentha spicata L. (MS), Mentha pulegium L. (MP) and Mentha rotundifolia (L). Huds (MR) on macrophage cells (RAW264.7; U937) and determined their impact on apoptosis and autophagy, which can play a role in controlling inflammation. MATERIALS AND METHODS: The extracts were prepared in culture medium and tested from 25 to 400 μg/mL after 24-48 h of treatment...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27925436/the-chemical-route-to-a-co2-neutral-world
#13
Johan Martens, Annemie Bogaerts, Norbert De Kimpe, Pierre Jacobs, Guy Marin, Korneel Rabaey, Mark Saeys, Sebastian Verhelst
The excessive CO2 emissions in the atmosphere from anthropogenic activity can be divided into point sources and diffuse sources. The capture of CO2 from flue gases of large industrial installations and its conversion to fuels and chemicals with fast catalytic processes seems technically possible. Some emerging technologies are already being demonstrated on an industrial scale. Others are still being tested on a laboratory or pilot scale. These emerging technologies can be implemented in a time-window ranging from 5 to 20 years...
December 7, 2016: ChemSusChem
https://www.readbyqxmd.com/read/27925372/cyp19a1-mif-and-abca1-genes-are-targets-of-the-ror%C3%AE-in-monocyte-and-endothelial-cells
#14
Neslihan Coban, Cagri Gulec, Bilge Ozsait Selcuk, Nihan Erginel-Unaltuna
RORα is a member of nuclear receptor superfamily of transcription factors which has a vital role in the regulation of various physiological processes. Cholesterol is a known ligand of RORα and is one of the key components that take part in cardiovascular diseases such as atherosclerosis. Therefore, it is possible that RORα might have a role in the development of atherosclerosis. To test this hypothesis, we investigated the presence of novel RORα response elements (ROREs) located in the promoter of CYP19A1, MIF and ABCA1 genes...
December 7, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27923980/humanin-skeletal-muscle-protein-levels-increase-after-resistance-training-in-men-with-impaired-glucose-metabolism
#15
Eva-Karin Gidlund, Ferdinand von Walden, Mika Venojärvi, Ulf Risérus, Olli J Heinonen, Jessica Norrbom, Carl Johan Sundberg
Humanin (HN) is a mitochondrially encoded and secreted peptide linked to glucose metabolism and tissue protecting mechanisms. Whether skeletal muscle HN gene or protein expression is influenced by exercise remains unknown. In this intervention study we show, for the first time, that HN protein levels increase in human skeletal muscle following 12 weeks of resistance training in persons with prediabetes. Male subjects (n = 55) with impaired glucose regulation (IGR) were recruited and randomly assigned to resistance training, Nordic walking or a control group...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/27922594/cacna1c-in-the-prefrontal-cortex-regulates-depression-related-behaviors-via-redd1
#16
Zeeba D Kabir, Anni S Lee, Caitlin E Burgdorf, Delaney Fischer, Aditi M Rajadhyaksha, Ethan Mok, Bryant Rizzo, Richard C Rice, Kamalpreet Singh, Kristie T Ota, Danielle M Gerhard, Kathryn C Schierberl, Michael Glass, Ronald S Duman, Anjali M Rajadhyaksha
The CACNA1C gene that encodes the L-type Ca(2+) channel (LTCC) Cav1.2 subunit has emerged as a candidate risk gene for multiple neuropsychiatric disorders including bipolar disorder, major depressive disorder and schizophrenia, all marked with depression-related symptoms. Although cacna1c heterozygous (HET) mice have been previously reported to exhibit an antidepressant-like phenotype, the molecular and circuit-level dysfunction remains unknown. Here we report that viral vector-mediated deletion of cacna1c in the adult prefrontal cortex (PFC) of mice recapitulates the antidepressant-like effect observed in cacna1c HET mice using the sucrose preference test (SPT), the forced swim test (FST), and the tail suspension test (TST)...
December 6, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27922103/hypothalamic-activation-is-essential-for-endotoxemia-induced-acute-muscle-wasting
#17
Kaipeng Duan, Qiyi Chen, Minhua Cheng, Chenyan Zhao, Zhiliang Lin, Shanjun Tan, Fengchan Xi, Tao Gao, Jialiang Shi, Juanhong Shen, Weiqin Li, Wenkui Yu, Jieshou Li, Ning Li
Growing evidence suggests acute skeletal muscle wasting is a key factor affecting nutritional support and prognosis in critical patients. Previously, plenty of studies of muscle wasting focused on the peripheral pathway, little was known about the central role. We tested the hypothesis whether central inflammatory pathway and neuropeptides were involved in the process. In lipopolysaccharide (LPS) treated rats, hypothalamic NF-κB pathway and inflammation were highly activated, which was accompanied with severe muscle wasting...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921303/eosinophils-from-eosinophilic-oesophagitis-patients-have-t-cell-suppressive-capacity-and-express-foxp3
#18
C Lingblom, J Wallander, M Ingelsten, H Bergquist, M Bove, R Saalman, A Welin, C Wennerås
Eosinophilic esophagitis (EoE) is an antigen-driven T cell-mediated chronic inflammatory disease where food and environmental antigens are thought to have a role. Human eosinophils express the immunoregulatory protein galectin-10 and have T cell suppressive capacity similar to regulatory T cells (Tregs ). We hypothesized that one function of eosinophils in EoE might be to regulate the T cell-driven inflammation in the oesophagus. This was tested by evaluating the suppressive capacity of eosinophils isolated from the blood of adult EoE patients in a mixed lymphocyte reaction...
November 5, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27921296/digest-selection-on-life-histories-drives-the-formation-of-functional-mitonuclear-associations1
#19
Edward McAssey
The relative importance of interactions between mitochondrial and nuclear genes on adaptation has gained increased attention (see Wolff et al., 2014), although experimental systems to make direct tests of its importance are scarce. Mitonuclear epistasis is when nuclear and mitochondrial genes interact, often at the protein level, and variation in these interactions may result in phenotypic differences (Paliwal et al., 2014). These interactions are often found in the mitochondria where the energy-generating electron transport chain (ETC) is located, and consists of both nuclear and mitochondrial proteins...
December 6, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27920776/immunodetection-of-nets-in-paraffin-embedded-tissue
#20
Volker Brinkmann, Ulrike Abu Abed, Christian Goosmann, Arturo Zychlinsky
The pathogenic potential of neutrophil extracellular traps (NETs) was recently described, and their detection in tissue could serve as a prognostic marker. NETs are delicate and filigree structures; hence good tissue preservation is essential for their detection. Indeed, analysis of paraffin-embedded tissue has proven superior to the study of cryo sections. Though, under favorable conditions, the presence of NETs can be detected in tissue sections stained with histological dyes, definitive identification of NETs needs the colocalization of immunofluorescent signals for both nuclear and granular (or cytoplasmic) NET components...
2016: Frontiers in Immunology
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