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https://www.readbyqxmd.com/read/28742227/melatonin-prevents-mitochondrial-dysfunctions-and-death-in-differentiated-skeletal-muscle-cells
#1
Sara Salucci, Michela Battistelli, Valentina Baldassarri, Debora Burini, Elisabetta Falcieri, Sabrina Burattini
Oxidative stress increase induces cellular damage and apoptosis activation, a mechanism believed to represent a final common pathway correlated to sarcopenia and many skeletal muscle disorders. The goal of this study is to evaluate if melatonin, a ROS scavenger molecule, is able to counteract or modulate myotube death. Here, differentiated C2C12 skeletal muscle cells have been treated with melatonin before chemicals known to induce apoptotic death and oxidative stress, and its effect has been investigated by means of morpho-functional analyses...
July 25, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28741431/-express-topical-moringin-cream-relieves-neuropathic-pain-by-suppression-of-inflammatory-pathway-and-voltage-gated-ion-channels-in-murine-model-of-multiple-sclerosis
#2
Sabrina Giacoppo, Renato Iori, Placido Bramanti, Emanuela Mazzon
No abstract text is available yet for this article.
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28739146/relative-toxicological-ranking-of-eight-polybrominated-diphenyl-ether-congeners-using-cytotoxicity-chemical-properties-and-exposure-data
#3
Sabrina Tait, Monia Perugini, Cinzia La Rocca
Polybrominated diphenyl ethers are widely used flame retardants which persist and diffuse in the environment thus entering the food chain. Eight congeners, most relevant for human exposure (BDE-28, 47, 99, 100, 153, 154, 183 and 209), were analyzed in vitro and in silico to derive a relative toxicological ranking. Cytotoxicity was assessed on human liver (HepG2) and colon (DLD-1) cell lines, by three assays (MTS, ATP and DNA content) in a range of realistic concentration (1pM - 10 nM). Jejunum and Caco-2 passive absorptions were calculated in silico...
July 21, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28736421/pathological-disabled-transgender-the-ethics-history-laws-and-contradictions-in-models-that-best-serve-transgender-rights
#4
Lance Wahlert, Sabrina Gill
This article addresses the precarious place of transgender and gender non-cis persons in relation to their discrimination-protections in recent legal, medical, and ethical policies in the United States. At present, there exists a contradiction such that trans persons are considered "pathological" enough that they are included in the latest iteration of the American Psychiatric Association's Diagnostic and Statistical Manual (DSM-V) as "gender dysphoric," but they are not included in the category of "disabled" under the Americans with Disabilities Act (ADA)...
2017: Kennedy Institute of Ethics Journal
https://www.readbyqxmd.com/read/28733671/short-chain-fatty-acids-and-inulin-but-not-guar-gum-prevent-diet-induced-obesity-and-insulin-resistance-through-differential-mechanisms-in-mice
#5
Karolin Weitkunat, Christin Stuhlmann, Anna Postel, Sandra Rumberger, Maria Fankhänel, Anni Woting, Klaus Jürgen Petzke, Sabrina Gohlke, Tim J Schulz, Michael Blaut, Susanne Klaus, Sara Schumann
The role of dietary fibre and short-chain fatty acids (SCFA) in obesity development is controversially discussed. Here, we investigated how various types of dietary fibre and different SCFA ratios affect metabolic syndrome-related disorders. Male mice (B6) were fed high-fat diets supplemented with dietary fibres (either cellulose, inulin or guar gum) or different Ac:Pr ratios (high acetate (HAc) or propionate (HPr)) for 30 weeks. Body-fat gain and insulin resistance were greatly reduced by inulin, but not by guar gum, and completely prevented by SCFA supplementation...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733637/c26-ceramide-as-highly-sensitive-biomarker-for-the-diagnosis-of-farber-disease
#6
Claudia Cozma, Marius-Ionuț Iurașcu, Sabrina Eichler, Marina Hovakimyan, Oliver Brandau, Susanne Zielke, Tobias Böttcher, Anne-Katrin Giese, Jan Lukas, Arndt Rolfs
Farber disease (FD) is a rare autosomal recessive disease caused by mutations in the acid ceramidase gene (ASAH1). Low ceramidase activity results in the accumulation of fatty substances, mainly ceramides. Hallmark symptoms at clinical level are periarticular nodules, lipogranulomas, swollen and painful joints and a hoarse voice. FD phenotypes are heterogeneous varying from mild to very severe cases, with the patients not surviving past their first year of life. The diagnostic aspects of FD are poorly developed due to the rarity of the disease...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733594/cd56-is-a-pathogen-recognition-receptor-on-human-natural-killer-cells
#7
Sabrina Ziegler, Esther Weiss, Anna-Lena Schmitt, Jan Schlegel, Anne Burgert, Ulrich Terpitz, Markus Sauer, Lorenzo Moretta, Simona Sivori, Ines Leonhardt, Oliver Kurzai, Hermann Einsele, Juergen Loeffler
Aspergillus (A.) fumigatus is an opportunistic fungal mold inducing invasive aspergillosis (IA) in immunocompromised patients. Although antifungal activity of human natural killer (NK) cells was shown in previous studies, the underlying cellular mechanisms and pathogen recognition receptors (PRRs) are still unknown. Using flow cytometry we were able to show that the fluorescence positivity of the surface receptor CD56 significantly decreased upon fungal contact. To visualize the interaction site of NK cells and A...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733525/ackr3-expression-on-diffuse-large-b-cell-lymphoma-is-required-for-tumor-spreading-and-tissue-infiltration
#8
Viola Puddinu, Sabrina Casella, Egle Radice, Sylvia Thelen, Stefan Dirnhofer, Francesco Bertoni, Marcus Thelen
Diffuse large B cell lymphoma (DLBCL) is the most frequent lymphoma accounting for more than the 30% of the cases. Involvement of extranodal sites, such as bone marrow and central nervous system, is associated with poor prognosis. A contribution of the chemokine system in these processes is assumed as it is known as a critical regulator of the metastatic process in cancer. The atypical chemokine receptor 3 (ACKR3), which does not couple to G-proteins and does not mediate cell migration, acts as a scavenger for CXCL11 and CXCL12, interfering with the tumor homing CXCL12/CXCR4 axis...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733308/some-doubts-about-the-mantra-on-the-deleterious-cardiovascular-effects-of-sulfonylureas
#9
Vincenzo Trischitta, Sabrina Prudente
No abstract text is available yet for this article.
August 2017: Diabetes
https://www.readbyqxmd.com/read/28732454/leaching-behaviour-of-municipal-solid-waste-incineration-bottom-ash-from-granular-material-to-monolithic-concrete
#10
Sabrina Sorlini, Maria Cristina Collivignarelli, Alessandro Abbà
The aim of this work was to assess the leaching behaviour of the bottom ash derived from municipal solid waste incineration (MSWI) used in concrete production. In particular, the release of pollutants was evaluated by the application of different leaching tests, both on granular materials and monolithic samples (concrete mixtures cast with bottom ash). The results confirmed that, according to Italian regulations, unwashed bottom ashes present critical issues for the use as alternative aggregates in the construction sector due to the excessive release of pollutants; instead, the leachate from washed bottom ashes was similar to natural aggregates...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28732368/meta-analysis-of-micrornas-expression-in-head-and-neck-cancer-uncovering-association-with-outcome-and-mechanisms
#11
Joshua Lubov, Mariana Maschietto, Iman Ibrahim, Alex Mlynarek, Michael Hier, Luiz Paulo Kowalski, Moulay A Alaoui-Jamali, Sabrina Daniela da Silva
Head and neck squamous cell carcinoma (HNSCC) is often diagnosed at advanced stages, incurring significant high mortality and morbidity. This review explored the risk stratification of miRNAs, and investigated the impact of miRNA networking in HNSCC prognostication. We performed a meta-analysis and a systematic literature search on online databases for papers published prior to December 1, 2016. The list of miRNAs was uploaded to MetacoreTM to construct a protein-protein interaction network, which was used to identify targets of the miRNAs and potential drugs...
July 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731828/geographical-variation-in-community-divergence-insights-from-tropical-forest-monodominance-by-ectomycorrhizal-trees
#12
Tadashi Fukami, Mifuyu Nakajima, Claire Fortunel, Paul V A Fine, Christopher Baraloto, Sabrina E Russo, Kabir G Peay
Convergence occurs in both species traits and community structure, but how convergence at the two scales influences each other remains unclear. To address this question, we focus on tropical forest monodominance, in which a single, often ectomycorrhizal (EM) tree species occasionally dominates forest stands within a landscape otherwise characterized by diverse communities of arbuscular mycorrhizal (AM) trees. Such monodominance is a striking potential example of community divergence resulting in alternative stable states...
August 2017: American Naturalist
https://www.readbyqxmd.com/read/28731403/safe-and-sustainable-the-extracranial-approach-toward-frontoethmoidal-meningoencephalocele-repair
#13
Paul I Heidekrueger, Myat Thu, Wolfgang Mühlbauer, Charlotte Holm-Mühlbauer, Philippe Schucht, Hans Anderl, Heinrich Schoeneich, Kyawzwa Aung, Mg Mg Ag, Ag Thu Soe Myint, Sabrina Juran, Thiha Aung, Denis Ehrl, Milomir Ninkovic, P Niclas Broer
OBJECTIVE Although rare, frontoethmoidal meningoencephaloceles continue to pose a challenge to neurosurgeons and plastic reconstructive surgeons. Especially when faced with limited infrastructure and resources, establishing reliable and safe surgical techniques is of paramount importance. The authors present a case series in order to evaluate a previously proposed concise approach for meningoencephalocele repair, with a focus on sustainability of internationally driven surgical efforts. METHODS Between 2001 and 2016, a total of 246 patients with frontoethmoidal meningoencephaloceles were treated using a 1-stage extracranial approach by a single surgeon in the Department of Neurosurgery of the Yangon General Hospital in Yangon, Myanmar, initially assisted by European surgeons...
July 21, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28731048/altered-peritumoral-microrna-expression-predicts-head-and-neck-cancer-patients-with-a-high-risk-of-recurrence
#14
Federica Ganci, Andrea Sacconi, Valentina Manciocco, Renato Covello, Maria Benevolo, Francesca Rollo, Sabrina Strano, Sara Valsoni, Silvio Bicciato, Giuseppe Spriano, Paola Muti, Giulia Fontemaggi, Giovanni Blandino
Head and neck squamous cell carcinoma is typically characterized by a high incidence of local recurrences. It has been extensively shown that mucosa from head and neck squamous cell carcinoma patients carries both genetic and gene expression alterations, which are mostly attributable to major etiologic agents of head and neck squamous cell carcinoma. We previously identified a signature of microRNAs (miRNAs) whose high expression in tumors is predictive of recurrence. Here, we investigated whether the deregulation of miRNA expression in the tumor-surrounding mucosa is correlated to disease recurrence...
July 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28730513/element-repetition-rates-encode-functionally-distinct-information-in-pied-babbler-clucks-and-purrs
#15
Sabrina Engesser, Amanda R Ridley, Simon W Townsend
Human language is a recombinant system that achieves its productivity through the combination of a limited set of sounds. Research investigating the evolutionary origin of this generative capacity has generally focused on the capacity of non-human animals to combine different types of discrete sounds to encode new meaning, with less emphasis on meaning-differentiating mechanisms achieved through potentially simpler temporal modifications within a sequence of repeated sounds. Here we show that pied babblers (Turdoides bicolor) generate two functionally distinct vocalisations composed of the same sound type, which can only be distinguished by the number of repeated elements...
July 20, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28730256/advanced-metastatic-breast-cancer-in-pregnancy-the-imperative-of-physical-breast-examination-in-pregnancy
#16
Anca Angela Simionescu, Claudia Valentina Georgescu, Mirela Corina Ghiluşi, Sabrina Ioana Stoica, Mircea Dragoş Median
Breast cancer is the most frequent cancer diagnosed among women; its association with pregnancy is not encountered. As childbearing age is increasing, the diagnosis of breast cancer associated pregnancy tends to be more often than years ago. Here we report a case of a 37-year-old patient, gravida 7, para 7, diagnosed at 30 weeks gestation with metastatic breast cancer. The patient presented to hospital due to an altered performance status. Obstetrical evaluation was within normal range. A metastatic infiltrating breast cancer poorly differentiated (G3) with satellite skin lesions (T4b), ipsilateral axillary and supraclavicular lymph nodes (N3), lung metastasis bilateral with pleural effusion and hepatic metastasis (M1), were diagnosed...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28730150/from-electrochemical-biosensors-to-biomimetic-sensors-based-on-molecularly-imprinted-polymers-in-environmental-determination-of-heavy-metals
#17
REVIEW
Cosimino Malitesta, Sabrina Di Masi, Elisabetta Mazzotta
Recent work relevant to heavy metal determination by inhibition-enzyme electrochemical biosensors and by selected biomimetic sensors based on molecularly imprinted polymers has been reviewed. General features and peculiar aspects have been evidenced. The replace of biological component by artificial receptors promises higher selectivity and stability, while biosensors keep their capability of producing an integrated response directly related to biological toxicity of the samples.
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28729028/micrornas-as-key-effectors-in-the-p53-network
#18
Frauke Goeman, Sabrina Strano, Giovanni Blandino
The guardian of the genome p53 is embedded in a fine-spun network of MicroRNAs. p53 is able to activate or repress directly the transcription of MicroRNAs that are participating in the tumor-suppressive mission of p53. On the other hand, the expression of p53 is under tight control of MicroRNAs that are either targeting directly p53 or factors that are modifying its protein level or activity. Although the most important function of p53 is suggested to be transcriptional regulation, there are several nontranscriptional functions described...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28726779/maml1-acts-cooperatively-with-gli-proteins-to-regulate-sonic-hedgehog-signaling-pathway
#19
Roberta Quaranta, Maria Pelullo, Sabrina Zema, Francesca Nardozza, Saula Checquolo, Dieter Matthias Lauer, Francesca Bufalieri, Rocco Palermo, Maria Pia Felli, Alessandra Vacca, Claudio Talora, Lucia Di Marcotullio, Isabella Screpanti, Diana Bellavia
Sonic hedgehog (Shh) signaling is essential for proliferation of cerebellar granule cell progenitors (GCPs) and its misregulation is linked to various disorders, including cerebellar cancer medulloblastoma. The effects of Shh pathway are mediated by the Gli family of transcription factors, which controls the expression of a number of target genes, including Gli1. Here, we identify Mastermind-like 1 (Maml1) as a novel regulator of the Shh signaling since it interacts with Gli proteins, working as a potent transcriptional coactivator...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28725928/structural-modification-of-cuminaldehyde-thiosemicarbazone-increases-inhibition-specificity-toward-aflatoxin-biosynthesis-and-sclerotia-development-in-aspergillus-flavus
#20
Francesca Degola, Franco Bisceglie, Marianna Pioli, Sabrina Palmano, Lisa Elviri, Giorgio Pelosi, Tiziana Lodi, Francesco Maria Restivo
Aspergillus flavus is an opportunistic mold that represents a serious threat for human and animal health due to its ability to synthesize and release, on food and feed commodities, different toxic secondary metabolites. Among them, aflatoxin B1 is one of the most dangerous since it is provided with a strong cancerogenic and mutagenic activity. Controlling fungal contamination on the different crops that may host A. flavus is considered a priority by sanitary authorities of an increasing number of countries due also to the fact that, owing to global temperature increase, the geographic areas that are expected to be prone to experience sudden A...
July 19, 2017: Applied Microbiology and Biotechnology
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