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Yanqi Bi, Guangsheng Pei, Tao Sun, Zixi Chen, Lei Chen, Weiwen Zhang
Microbial small RNAs (sRNAs) play essential roles against many stress conditions in cyanobacteria. However, little is known on their regulatory mechanisms on biofuels tolerance. In our previous sRNA analysis, a trans -encoded sRNA Nc117 was found involved in the tolerance to ethanol and 1-butanol in Synechocystis sp. PCC 6803. However, its functional mechanism is yet to be determined. In this study, functional characterization of sRNA Nc117 was performed. Briefly, the exact length of the trans -encoded sRNA Nc117 was determined to be 102 nucleotides using 3' RACE, and the positive regulation of Nc117 on short chain alcohols tolerance was further confirmed...
2018: Frontiers in Microbiology
Angelo Caputo, Marco De Santis, Valerio Manno, Gabriella Cauzillo, Biagio Maria Bruni, Lorenzo Palumbo, Susanna Conti, Pietro Comba
OBJECTIVES: to estimate the health impact of asbestos fibres naturally occurring in Mount Pollino area (Basilicata Region, Southern Italy). DESIGN: geographic mortality, hospitalization, and incidence study. Setting and participant s: population resident in 12 Municipalities of Mount Pollino area with naturally occurring asbestos fibres. MAIN OUTCOME MEASURES: standardized mortality ratio (SMR) and standardized hospitalization rate (SHR) for asbestos-related diseases; standardized incidence ratio (SIR) for mesotheliomas...
March 2018: Epidemiologia e Prevenzione
Homa Timlin, Abrahim Syed, Uzma Haque, Brittany Adler, Genevieve Law, Kirthi Machireddy, Rebecca Manno
[This corrects the article DOI: 10.7759/cureus.2098.].
May 1, 2018: Curēus
Louis B Jugnia, Dominic Manno, Karine Drouin, Meghan Hendry
Bioremediation was performed in situ at a former military range site to assess the performance of native bacteria in degrading hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and 2,4-dinitrotoluene (2,4-DNT). The fate of these pollutants in soil and soil pore water was investigated as influenced by waste glycerol amendment to the soil. Following waste glycerol application, there was an accumulation of organic carbon that promoted microbial activity, converting organic carbon into acetate and propionate, which are intermediate compounds in anaerobic processes...
May 4, 2018: Environmental Science and Pollution Research International
Giuseppe Magliulo, Giannicola Iannella, Alessandra Manno, Laura Libonati, Emanuela Onesti, Annarita Vestri, Danilo Alunni Fegatelli, Diletta Angeletti, Annalisa Pace, Giampiero Gulotta, Silvia Gagliardi, Maurizio Inghilleri
PURPOSE: To investigate the possibility of vestibular damage in a group of patients suffering from chronic inflammatory demyelinating polyneuropathy (CIDP) using a diagnostic protocol including the caloric test, C-VEMPs and O-VEMPs. METHODS: Twenty patients suffering from CIDP (mean age 58.5 years, range 33-80 years; 4 women and 16 men) were investigated. To assess any eventual audio-vestibular involvement, all patients of the study underwent pure tone audiometry, Fitzgerald-Hallpike caloric vestibular test, C-VEMPs and O-VEMPs...
April 27, 2018: European Archives of Oto-rhino-laryngology
Gianluigi De Benedetto, Laura Salvini, Stefano Gotta, Paola Cescutti, Francesca Micoli
Invasive nontyphoidal Salmonella disease, for which licensed vaccines are not available, is a leading cause of bloodstream infections in Africa. The O-antigen portion of lipopolysaccharide is a good target for protective immunity. Covalent conjugation of the O-antigen to a carrier protein increases its immunogenicity and O-antigen based glycoconjugate vaccines are currently under investigation at the preclinical stage. We developed a conjugation chemistry for linking O-antigen to CRM197 carrier protein, through sequential insertion of adipic acid dihydrazide (ADH) and adipic acid bis-(N-hydroxysuccinimide) ester (SIDEA) as linkers, without impacting on O-antigen chain epitopes...
April 26, 2018: Bioconjugate Chemistry
Sebastiano Cimino, Salvatore Privitera, Vincenzo Favilla, Stefano Manno, Antonio Cicione, Rocco Damiano, Giorgio Ivan Russo, Giuseppe Morgia
Active surveillance (AS) is a therapeutic strategy for early-stage prostate cancer (PCa) conceived to balance early detection of aggressive disease and overtreatment of indolent tumor. Several active surveillance protocol have been published over the years, however the risk of misclassification still exist. In this review, we revised the current criteria of AS and evaluated the characteristics of potential risk factors of misclassification or deferred treatment. Although the follow-up of reported studies was a quite short compared to the duration of the disease, the data are sufficient to conclude that active surveillance should be offered to men with low-risk disease and to men with intermediate risk and poor life expectancy...
April 25, 2018: Anti-cancer Agents in Medicinal Chemistry
Martin Häring, Amit Zeisel, Hannah Hochgerner, Puneet Rinwa, Jon E T Jakobsson, Peter Lönnerberg, Gioele La Manno, Nilesh Sharma, Lotta Borgius, Ole Kiehn, Malin C Lagerström, Sten Linnarsson, Patrik Ernfors
The dorsal horn of the spinal cord is critical to processing distinct modalities of noxious and innocuous sensation, but little is known of the neuronal subtypes involved, hampering efforts to deduce principles governing somatic sensation. Here we used single-cell RNA sequencing to classify sensory neurons in the mouse dorsal horn. We identified 15 inhibitory and 15 excitatory molecular subtypes of neurons, equaling the complexity in cerebral cortex. Validating our classification scheme in vivo and matching cell types to anatomy of the dorsal horn by spatial transcriptomics reveals laminar enrichment for each of the cell types...
April 23, 2018: Nature Neuroscience
Sungwon Kim, Pete Kaiser, Dominika Borowska, Lonneke Vervelde
Toll-like receptor (TLR) ligands (TLR-Ls) are critical activators of immunity and are successfully being developed as vaccine adjuvants in both mammals and birds. In this study, we investigated the synergistic effect of co-stimulation of membrane and endosomal TLRs on the innate immune responses using chicken bone marrow-derived macrophages (BMMs), and studied the effect of age on the induction of innate responses. BMMs from 1 and 4-week-old birds were stimulated with Pam3Cys-SK4 (PCSK; TLR2), synthetic monophosphoryl lipid A (MPLA), Di[3-deoxy-d-manno-octulosonyl]-lipid A ammonium salt (KLA; TLR4), Gardiquimod, Resiquimod (R848; TLR7), CpG class B and C (TLR21)...
May 2018: Veterinary Immunology and Immunopathology
Giannicola Iannella, Diletta Angeletti, Alessandra Manno, Benedetta Pasquariello, Massimo Re, Giuseppe Magliulo
OBJECTIVES/HYPOTHESIS: The purpose of the present study was to show our preliminary results regarding the endoscopic ear surgery application in malleostapedotomy surgery. STUDY DESIGN: Case series. METHODS: Six patients (four females and two males) who underwent endoscopic ear surgery as revision surgery for otosclerosis were enrolled in this study. For endoscopic malleostapedotomy surgery, rigid angled endoscopes at 0 ° and 30 ° with a length of 14 cm and an outer diameter of 3 and 4 mm were used...
April 15, 2018: Laryngoscope
Kirthi Machireddy, Zin Myint, Eric Dein, Stephen C Mathai, Philip Seo, Uzma Haque, Rebecca Manno, Homa Timlin
Pulmonary hypertension (PH) is a life-threatening complication of several, different connective tissue diseases, including systemic lupus erythematous (SLE), systemic sclerosis, and rheumatoid arthritis. PH can present early in SLE. The severity does not correlate with other organ disease activity or with disease duration. It is still debatable whether immunosuppressive therapy is useful for PH related to SLE or autoimmune connective tissue disease, as there are no large clinical trials. However, several case reports have shown improvement with cyclophosphamide and prednisone with or without vasodilator therapy...
January 29, 2018: Curēus
Sajjad Ahmad, Saad Raza, Asma Abro, Klaus R Liedl, Syed Sikander Azam
KdsB (3-deoxy-manno-octulosonate cytidylyltransferase) is a highly specific and selective bacterial enzyme that catalyzes KDO (3-Deoxy-D-mano-oct-2-ulosonic acid) activation in KDO biosynthesis pathway. Failure in KDO biosynthesis causes accumulation of lipid A in the bacterial outer membrane that leads to cell growth arrest. This study reports a combinatorial approach comprising virtual screening of natural drugs library, molecular docking, computational pharmacokinetics, molecular dynamics simulation, and binding free energy calculations for the identification of potent lead compounds against the said enzyme...
March 31, 2018: Journal of Biomolecular Structure & Dynamics
Antonio Cicione, Cosimo DE Nunzio, Stefano Manno, Rocco Damiano, Alessandro Posti, Estevao Lima, Andrea Tubaro, Filippo Balloni
INTRODUCTION: Prostate cancer (PCa) is a singular disease owing to absence of imaging technique able to detect suspicious glandular area at higher risk of disease. Nowadays, Magnetic Resonance Imaging (MRI) has been used as a way to detect PCa and simplify targeting prostate biopsy (PB). The aim of this study is to review the most recent data regarding prostate biopsy and MRI guided PB. EVIDENCE ACQUISITION: A comprehensive systematic MEDLINE search was performed in December 2017 for English language reports by using the following terms: prostate biopsy, multiparametric magnetic resonance imaging, prostate cancer, transrectal and transperineal ultrasound, target biopsy...
March 28, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
Homa Timlin, Abrahim Syed, Uzma Haque, Brittany Adler, Genevieve Law, Kirthi Machireddy, Rebecca Manno
Variability in systemic lupus erythematosus (SLE) disease manifestations is well recognized. Lupus disease activity can range from mild to severe. Fever is a common manifestation of SLE and occurs in 36%-86% of patients. In the Modified Systemic Lupus Erythematosus Disease Activity Index (M-SLEDAI), fever is taken into account as disease activity scoring. Assessment of lupus patients with fever is an important diagnostic challenge, since the initial clinical presentation of a patient with lupus is very similar to the acute febrile phase of an infection...
January 22, 2018: Curēus
Maxim S Kokoulin, Anatoly I Kalinovsky, Lyudmila A Romanenko, Valery V Mikhailov
The O-polysaccharide was isolated from the lipopolysaccharide of a marine bacterium Pseudomonas glareae KMM 9500T and studied by chemical methods along with 1D and 2D1 H and13 C NMR spectroscopy including1 H,1 H-TOCSY,1 H,1 H-COSY,1 H,1 H-ROESY,1 H,13 C-HSQC and1 H,13 C-HMBC experiments. The O-polysaccharide was found to consist of linear tetrasaccharide repeating units constituted by D-glucuronic acid (D-GlcA), L-rhamnose (L-Rha), D-glucose (D-Glc) and 5-acetamido-7,9-O-[(S)-1-carboxyethylidene]-3,5-dideoxy-L-glycero-L-manno-non-2-ulosonic acid (Sug7,9(S-Pyr)), partially O-acetylated at position 8 (∼70%): →4)-α-D-GlcpA-(1→3)-β-L-Rhap-(1→4)-β-D-Glcp-(1→4)-β-Sugp8Ac(∼70%)7,9(S-Pyr)-(2→...
March 8, 2018: Carbohydrate Research
Mads Heuckendorff, Lulu Teressa Poulsen, Christinne Hedberg, Henrik H Jensen
Neighboring group effects were investigated in gluco- and manno-configured thioglycosides under NIS/TfOH activation. Donors possessing a 2-O-benzoyl group that are capable (1,2-trans) and incapable (1,2-cis) of exerting nucleophilic push were compared with donors possessing a participatory neutral 2-O-benzyl group. By using competition experiments between sets of glycosyl donors the direct effect of neighboring group participation and the electron withdrawing effect of the 2-O-benzoyl group could be separated...
March 28, 2018: Organic & Biomolecular Chemistry
L De Riccardis, A Buccolieri, M Muci, E Pitotti, F De Robertis, G Trianni, D Manno, M Maffia
Although many studies have been carried out in order to understand the implication of copper (Cu) in the pathogenesis of multiple sclerosis (MS), the exact role that this metal plays in the disease is not still clear. Because of the lack of information in this subject, the present study compared the serum and cerebrospinal (CSF) levels of copper in MS patients in respect to a control group, matched for age and sex, finding a significant increase of metal concentrations, in both biological fluids of MS subjects...
May 2018: Biochimica et Biophysica Acta
Alessandro Buccolieri, Antonio Serra, Gabriele Giancane, Daniela Manno
Silver nanoparticles were synthesized in the presence of saccharides and ammonia (NH3 ) in the concentration range from 10-2 to 103 ppm to develop an optical sensor for NH3 in aqueous solutions. Ammonia affects the features of the nanoparticles obtained in a concentration-dependent manner as determined by UV-vis absorption analysis and TEM observations. Structural and morphological analysis provides the basis for the production of a colorimetric label-free sensor for ammonia. Overall, surface plasmon resonance increases when ammonia concentration rises, although the functional trend is not the same over the entire investigated ammonia concentration range...
2018: Beilstein Journal of Nanotechnology
Fernando G Dupuy, Isabella Pagano, Kathryn Andenoro, Maria F Peralta, Yasmene Elhady, Frank Heinrich, Stephanie Tristram-Nagle
Although colistin's clinical use is limited due to its nephrotoxicity, colistin is considered to be an antibiotic of last resort because it is used to treat patients infected with multidrug-resistant bacteria. In an effort to provide molecular details about colistin's ability to kill Gram-negative (G(-)) but not Gram-positive (G(+)) bacteria, we investigated the biophysics of the interaction between colistin and lipid mixtures mimicking the cytoplasmic membrane of G(+), G(-) bacteria as well as eukaryotic cells...
February 27, 2018: Biophysical Journal
Wei Tang, Zhengyan Guo, Zhenju Cao, Min Wang, Pengwei Li, Xiangxi Meng, Xuejin Zhao, Zhoujie Xie, Wenzhao Wang, Aihua Zhou, Chunbo Lou, Yihua Chen
Seven-carbon-chain-containing sugars exist in several groups of important bacterial natural products. Septacidin represents a group of l-heptopyranoses containing nucleoside antibiotics with antitumor, antifungal, and pain-relief activities. Hygromycin B, an aminoglycoside anthelmintic agent used in swine and poultry farming, represents a group of d-heptopyranoses-containing antibiotics. To date, very little is known about the biosynthesis of these compounds. Here we sequenced the genome of the septacidin producer and identified the septacidin gene cluster by heterologous expression...
March 13, 2018: Proceedings of the National Academy of Sciences of the United States of America
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