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Daniela Calzia, Greta Garbarino, Federico Caicci, Mario Pestarino, Lucia Manni, Carlo Enrico Traverso, Isabella Panfoli, Simona Candiani
Previous studies on purified bovine rod outer segments (OS) disks pointed to Oxidative Phosphorylation (OXPHOS) as being the most likely mechanism involved in ATP production, as yet not fully understood, to support the first phototransduction steps. Bovine and murine rod OS disks, devoid of mitochondria, would house respiratory chain complexes I to IV and ATP synthase, similar to mitochondria. Zebrafish ( Danio rerio) is a well-suited animal model to study vertebrate embryogenesis as well as the retina, morphologically and functionally similar to its human counterpart...
March 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
Marco M Manni, Marion L Tiberti, Sophie Pagnotta, Hélène Barelli, Romain Gautier, Bruno Antonny
Phospholipid membranes form cellular barriers but need to be flexible enough to divide by fission. Phospholipids generally contain a saturated fatty acid (FA) at position sn1 whereas the sn2 -FA is saturated, monounsaturated or polyunsaturated. Our understanding of the impact of phospholipid unsaturation on membrane flexibility and fission is fragmentary. Here, we provide a comprehensive view of the effects of the FA profile of phospholipids on membrane vesiculation by dynamin and endophilin. Coupled to simulations, this analysis indicates that: (i) phospholipids with two polyunsaturated FAs make membranes prone to vesiculation but highly permeable; (ii) asymmetric sn1 -saturated- sn2 -polyunsaturated phospholipids provide a tradeoff between efficient membrane vesiculation and low membrane permeability; (iii) When incorporated into phospholipids, docosahexaenoic acid (DHA; omega-3) makes membranes more deformable than arachidonic acid (omega-6)...
March 15, 2018: ELife
Silvia Ravera, Maria Grazia Signorello, Martina Bartolucci, Sara Ferrando, Lucia Manni, Federico Caicci, Daniela Calzia, Isabella Panfoli, Alessandro Morelli, Giuliana Leoncini
BACKGROUND INFORMATION: Energy demand in human platelets is very high, to carry out their functions. As for most human cells, the aerobic metabolism represents the primary energy source in platelets, even though mitochondria are negligibly represented. Following the hypothesis that other structures could be involved in chemical energy production, in this work, we have investigated the functional expression of an extramitochondrial aerobic metabolism in platelets. RESULTS: Oximetric and luminometric analyses showed that platelets consume large amounts of oxygen and produce ATP in the presence of common respiring substrates, such as pyruvate + malate or succinate, although morphological electron microscopy analysis showed that these contain few mitochondria...
March 14, 2018: Biology of the Cell
Stefano Menini, Carla Iacobini, Luisa de Latouliere, Isabella Manni, Vittoria Ionta, Claudia Blasetti Fantauzzi, Carlo Pesce, Paola Cappello, Francesco Novelli, Giulia Piaggio, Giuseppe Pugliese
Diabetes is an established risk factor for pancreatic cancer (PaC), together with obesity, Western diet and tobacco smoking. The common mechanistic link might be the accumulation of advanced glycation endproducts (AGEs), which characterizes all the above disease conditions and unhealthy habits. Surprisingly, however, the role of AGEs in PaC has not been examined yet, despite the evidence of a tumor-promoting role of RAGE, the receptor for AGEs. Here, we tested the hypothesis that AGEs promote PaC through RAGE activation...
March 13, 2018: Journal of Pathology
Brij Bhushan Mehta, Anil Tiwari, Saniya Sharma, Ashu Shukla, Maryada Sharma, Rakesh K Vasishta, Ramesh K Sen, Aman Sharma, Manni Luthra-Guptasarma
Tenascin-C (TN-C) levels are elevated in the synovial tissue and fluid, as well as cartilage of rheumatoid arthritis (RA) patients. In addition, the presence of TN-C fragments has also been documented in arthritic cartilage. We have previously shown that a single chain variable fragment antibody (TN64), directed against the fibronectin type III repeats 1-5 (TNfnIII 1-5) of TN-C, effectively inhibits fibrotic pathology. Given that fibrosis results from chronic inflammation, and the fact that increased levels of TN-C in the synovial fluid of patients with RA contributes to synovial inflammation and joint destruction, we aimed to investigate the role of TNfnIII 1-5 region of TN-C in RA pathogenesis...
March 9, 2018: International Immunopharmacology
Antonio Manni, Sabrina Mutinelli, Carmen Cerruto, Paola Giraudo, Rachele Romano, Mauro Cozzani
Objectives To compare the prevalence of clinical complications between two different telescopic Herbst systems: the conventional telescopic system, with traditional rod and tube (RMS), and the Manni telescopic Herbst appliance (MTH). Materials and Methods Ninety subjects treated with RMS were compared to 89 patients treated with MTH. All of the complications that occurred were reported, and percentages of prevalence were calculated. Results MTH showed a significantly lower percentage of reversible complications (that did not require appliance removal) when compared to the reversible complications during RMS treatment (20...
March 8, 2018: Angle Orthodontist
Max L Nibert, Austin R Manny, Humberto J Debat, Andrew E Firth, Laura Bertini, Carla Caruso
Because so few viruses in the family Barnaviridae have been reported, we searched for more of them in public sequence databases. Here, we report the complete coding sequence of Colobanthus quitensis associated barnavirus 1, mined from a transcriptome of the Antarctic pearlwort Colobanthus quitensis. The 4.2-kb plus-strand sequence of this virus encompasses four main open reading frames (ORFs), as expected for barnaviruses, including ORFs for a protease-containing polyprotein, an RNA-dependent RNA polymerase whose translation appears to rely on - 1 ribosomal frameshifting, and a capsid protein that is likely to be translated from a subgenomic RNA...
March 7, 2018: Archives of Virology
F Accordino, A Pintucci, M U Manni, V Meregalli, Anna Locatelli
No abstract text is available yet for this article.
March 4, 2018: Journal of Maternal-fetal & Neonatal Medicine
Michela Manni, Sanjay Gupta, Edd Ricker, Yurii Chinenov, Sung Ho Park, Man Shi, Tania Pannellini, Rolf Jessberger, Lionel B Ivashkiv, Alessandra B Pernis
Age-associated B cells (ABCs) are a subset of B cells dependent on the transcription factor T-bet that accumulate prematurely in autoimmune settings. The pathways that regulate ABCs in autoimmunity are largely unknown. SWAP-70 and DEF6 (also known as IBP or SLAT) are the only two members of the SWEF family, a unique family of Rho GTPase-regulatory proteins that control both cytoskeletal dynamics and the activity of the transcription factor IRF4. Notably, DEF6 is a newly identified human risk variant for systemic lupus erythematosus...
February 26, 2018: Nature Immunology
Tawna L Roberts, Ruth E Manny, Julia S Benoit, Heather A Anderson
SIGNIFICANCE: These results demonstrate that accommodation in children is more accurate and less variable when performing a sustained near task with increased cognitive demand. In addition, children with increased uncorrected hyperopia have less stable accommodative responses, which may have visual implications during sustained near tasks. PURPOSE: This study investigated accommodative accuracy (lag) and variability during sustained viewing for passive and active tasks in children and adults with emmetropia and uncorrected hyperopia...
February 15, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Gin S Malhi, Tim Outhred, Pritha Das, Grace Morris, Amber Hamilton, Zola Mannie
INTRODUCTION: Suicide is a multicausal human behavior, with devastating and immensely distressing consequences. Its prevalence is estimated to be 20-30 times greater in patients with bipolar disorders than in the general population. The burden of suicide and its high prevalence in bipolar disorders make it imperative that our current understanding be improved to facilitate prediction of suicide and its prevention. In this review, we provide a new perspective on the process of suicide in bipolar disorder, in the form of a novel integrated model that is derived from extant knowledge and recent evidence...
February 19, 2018: Bipolar Disorders
Manni Waraich, Shailesh Shah
No abstract text is available yet for this article.
February 2018: Journal of the Intensive Care Society
Måns Ekelöf, Jeffrey Manni, Milad Nazari, Mark Bokhart, David C Muddiman
Laser systems are widely used in mass spectrometry as sample probes and ionization sources. Mid-infrared lasers are particularly suitable for analysis of high water content samples such as animal and plant tissues, using water as a resonantly excited sacrificial matrix. Commercially available mid-IR lasers have historically been bulky and expensive due to cooling requirements. This work presents a novel air-cooled miniature mid-IR laser with adjustable burst-mode output and details an evaluation of its performance for mass spectrometry imaging...
February 17, 2018: Analytical and Bioanalytical Chemistry
Sara Canovas Nunes, Martina Manzoni, Marco Pizzi, Elisa Mandato, Marilena Carrino, Laura Quotti Tubi, Renato Zambello, Fausto Adami, Andrea Visentin, Gregorio Barilà, Livio Trentin, Sabrina Manni, Antonino Neri, Gianpietro Semenzato, Francesco Piazza
Multiple myeloma is a post-germinal center B-cell neoplasm, characterized by the proliferation of malignant bone marrow plasma cells, whose survival and proliferation is sustained by growth factors and cytokines present in the bone marrow microenvironment. Among them, IL-6 triggers the signal downstream of its receptor, leading to the activation of the JAK/STAT pathway. The atypical GTPase RhoU lays downstream of STAT3 transcription factor and could be responsible for mediating its effects on cytoskeleton dynamics...
February 13, 2018: Blood Cancer Journal
Gilly A Hendrie, Rebecca K Golley, Manny Noakes
Population surveys have rarely identified dietary patterns associated with excess energy intake in relation to risk of obesity. This study uses self-reported food intake data from the validated Commonwealth Scientific and Industrial Research Organisation (CSIRO) Healthy Diet Score survey to examine whether apparent compliance with dietary guidelines varies by weight status. The sample of 185,951 Australian adults were majority female (71.8%), with 30.2%, 35.3% and 31.0% aged between 18-30, 31-50 and 51-70 years respectively...
February 11, 2018: Nutrients
Loredana Bury, Eva Zetterberg, Eva B Leinoe, Emanuela Falcinelli, Alessandro Marturano, Giorgia Manni, Alan T Nurden, Paolo Gresele
No abstract text is available yet for this article.
February 8, 2018: Haematologica
Fábio Codignole Luz, Maurizio Volpe, Luca Fiori, Alessandro Manni, Stefano Cordiner, Vincenzo Mulone, Vittorio Rocco
This study reports the implications of using spent coffee hydrochar as substrate for anaerobic digestion (AD) processes. Three different spent coffee hydrochars produced at 180, 220 and 250 °C, 1 h residence time, were investigated for their biomethane potential in AD process inoculated with cow manure. Spent coffee hydrochars were characterized in terms of ultimate, proximate and higher heating value (HHV), and their theoretical bio-methane yield evaluated using Boyle-Buswell equation and compared to the experimental values...
February 7, 2018: Bioresource Technology
Zhuangmin Zhong, Junyu Zheng, Manni Zhu, Zhijiong Huang, Zhiwei Zhang, Guanglin Jia, Xiaoli Wang, Yahui Bian, Yanlong Wang, Nan Li
Emission inventory (EI) requires continuous updating to improve its quality and reduce its uncertainty. In this study, recent developments on source classification, emission methods, emission factors and spatial-temporal surrogates in the Guangdong regional anthropogenic emission inventory are presented. The developments include: ~40 additional emission sources in a re-classified source classification system, >50 improved spatial and temporal surrogates, 85% of local/domestic emission factors used, and updated estimation methods of on-road mobile, marine, and solvent use sources...
February 5, 2018: Science of the Total Environment
Soohyun Kim, Sara M Thomasy, David Ramsey, Min Zhao, Mark J Mannis, Christopher J Murphy
The course travelled by corneal epithelial cells from their stem cell niche at the limbus toward the vertex of the cornea is normally not evident due to their transparency, but in certain conditions, the epithelial cells can be rendered visible to the clinician. In such cases, the pathway taken by epithelial cells can manifest as a whorl pattern described using a variety of terms including hurricane keratitis/keratopathy, vortex keratopathy, whorl keratopathy, cornea verticillata, and at times, named after causative agents as exemplified by amiodarone keratopathy...
February 6, 2018: Veterinary Ophthalmology
Tawna L Roberts, Scott B Stevenson, Julia S Benoit, Ruth E Manny, Heather A Anderson
SIGNIFICANCE: Our results demonstrate that blur detection thresholds are elevated in young children compared with adults, and poorer blur detection thresholds are significantly correlated with the magnitude of accommodative microfluctuations. Given that accommodative microfluctuations are greater with greater accommodative responses, these findings may have implications for young uncorrected hyperopes. PURPOSE: This study investigated the association between subjective blur detection thresholds and accommodative microfluctuations in children 3 years to younger than 10 years old and adults...
February 3, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
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