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https://www.readbyqxmd.com/read/29458016/renal-toxicological-evaluations-of-sulphonated-nanocellulose-from-khaya-sengalensis-seed-in-wistar-rats
#1
Adewale Adewuyi, Chiagoziem A Otuechere, Olusegun L Adebayo, Chibuzo Anazodo, Fabiano V Pereira
Nanocellulose is currently gaining attention due to its unique properties. This attention includes its application as building blocks for developing novel functional materials, plant drug and also in drug delivery systems. However, its safety remains largely untested or less understood. Thus, sulphonated nanocellulose (KSS) was prepared from cellulose (KSC) isolated from Khaya senegalensis seed (KS). KS, KSC and KSS were characterized using Fourier transformed infrared (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TG), particle size distribution (PSD), zeta potential and scanning electron microscopy (SEM)...
February 16, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29457693/growth-yield-and-selection-of-nosz-clade-ii-types-in-a-continuous-enrichment-culture-of-n-2-o-respiring-bacteria
#2
Monica Conthe, Lea Wittorf, J Gijs Kuenen, Robbert Kleerebezem, Sara Hallin, Mark C M van Loosdrecht
Nitrous oxide (N2 O) reducing microorganisms may be key in the mitigation of N2 O emissions from managed ecosystems. However, there is still no clear understanding of the physiological and bioenergetic implications of microorganisms possessing either of the two N2 O reductase genes (nosZ), clade I and the more recently described clade II type nosZ. It has been suggested that organisms with nosZ clade II have higher growth yields and a lower affinity constant (Ks ) for N2 O. We compared N2 O reducing communities with different nosZI/nosZII ratios selected in chemostat enrichment cultures, inoculated with activated sludge, fed with N2 O as a sole electron acceptor and growth limiting factor, and acetate as electron donor...
February 19, 2018: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/29457292/antibodies-against-h3-and-h4-histones-from-the-sera-of-hiv-infected-patients-catalyze-site-specific-degradation-of-these-histones
#3
Svetlana V Baranova, Pavel S Dmitrenok, Anastasiya D Zubkova, Nikita V Ivanisenko, Elena S Odintsova, Valentina N Buneva, Georgy A Nevinsky
Histones and their posttranslational modified forms play pivotal roles in chromatin functioning and gene transcription. Also, histones are harmful when they enter the intercellular space; their administration to animals results in systemic inflammatory and toxic responses. Autoantibodies having enzymatic activities (abzymes) are the specific feature of several autoimmune and viral diseases. Electrophoretically homogeneous IgGs containing no canonical proteases were purified from sera of HIV-infected patients by using several affinity chromatographies...
February 19, 2018: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/29455771/angiographic-predictors-of-success-in-antegrade-approach-of-chronic-total-occlusion-interventions-in-a-south-indian-population-in-the-contemporary-era
#4
Gopakumar Ks, Mathew Iype, Sunitha Viswanathan, A George Koshy, Prabha Nini Gupta, K Sivaprasad, V V Radhakrishnan
Chronic Total Occlusion (CTO) intervention is a challenging area in interventional cardiology. Presently about 70% of CTO interventions are successful. MATERIALS AND METHODS: This was a single center prospective study of a cohort of all patients undergoing percutaneous coronary intervention (PCI) as elective or adhoc procedure for CTO from August 2014 to June 2015. Only antegrade CTO interventions were included. In all patients the following data were recorded. RESULTS: A total of 210 (8...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29452406/negative-association-between-sclerostin-and-insl3-in-isolated-human-osteocytes-and-in-klinefelter-syndrome-new-hints-for-testis-bone-crosstalk
#5
Andrea Di Nisio, Luca De Toni, Maria Santa Rocca, Marco Ghezzi, Riccardo Selice, Giuseppe Taglialavoro, Alberto Ferlin, Carlo Foresta
Context/Objective: The regulation of bone mass by the testis is a well-recognized mechanism, but the role of Leydig-specific marker insuline-like 3 peptide (INSL3) on the most abundant bone cell population, osteocytes, is unknown. In this study we aimed to investigate the relationship between INSL3 and Sclerostin, an osteocyte-specific protein that negatively regulates bone formation. Design/Setting: Serum sclerostin and INSL3 levels were evaluated in Klinefelter Syndrome (KS) and healthy controls...
February 14, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29452353/a-diagnostic-germ-cell-score-for-immature-testicular-tissue-at-risk-of-germ-cell-loss
#6
L Heckmann, D Langenstroth-Röwer, T Pock, J Wistuba, J-B Stukenborg, M Zitzmann, S Kliesch, S Schlatt, N Neuhaus
STUDY QUESTION: Can a systematic scoring procedure provide crucial information on the status of highly heterogeneous immature human testicular tissues in the context of cryopreservation for fertility preservation? SUMMARY ANSWER: We developed a systematic histological score as a novel diagnostic tool which differentiates the patient cohort according to the status of germ cell differentiation and number of spermatogonia (normal, diminished and absent), and which could be relevant in the fertility clinic...
February 14, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29452158/protein-kinase-c-epsilon-mediates-the-inhibition-of-angiotensin-ii-on-the-slowly-activating-delayed-rectifier-potassium-current-through-channel-phosphorylation
#7
Xiangbo Gou, Wenying Wang, Sihao Zou, Yajuan Qi, Yanfang Xu
The slowly activating delayed rectifier K+ current (IKs ) is one of the main repolarizing currents in the human heart. Evidence has shown that angiotensin II (Ang II) regulates IKs through the protein kinase C (PKC) pathway, but the related results are controversial. This study was designed to identify PKC isoenzymes involved in the regulation of IKs by Ang II and the underlying molecular mechanism. The whole-cell patch-clamp technique was used to record IKs in isolated guinea pig ventricular cardiomyocytes and in human embryonic kidney (HEK) 293 cells co-transfected with human KCNQ1/KCNE1 genes and Ang II type 1 receptor genes...
February 13, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29450971/evaluation-of-an-abutment-level-superpower-sound-processor-for-bone-anchored-hearing
#8
Arjan J Bosman, Ivo J Kruyt, Emmanuel Am Mylanus, Myrthe Ks Hol, Ad Fm Snik
OBJECTIVES: Performance of an abutment-level superpower sound processor for bone-anchored hearing, the Ponto 3 SuperPower from Oticon Medical (BCD2), was compared to an earlier model from Oticon Medical (BCD1). DESIGN: A comparative study in which each patient serves as its own control. SETTING: Tertiary clinic. PARTICIPANTS: Eighteen experienced BCD1 users with profound mixed hearing loss. MAIN OUTCOME MEASURES: speech reception thresholds in noise; APHAB and SSQ questionnaires...
February 16, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29449639/a-herg-mutation-e1039x-produced-a-synergistic-lesion-on-i-ks-together-with-kcnq1-r174c-mutation-in-a-lqts-family-with-three-compound-mutations
#9
Jie Wu, Yuka Mizusawa, Seiko Ohno, Wei-Guang Ding, Takashi Higaki, Qi Wang, Hirohiko Kohjitani, Takeru Makiyama, Hideki Itoh, Futoshi Toyoda, Andrew F James, Jules C Hancox, Hiroshi Matsuura, Minoru Horie
Congenital long QT syndrome (LQTS) caused by compound mutations is usually associated with more severe clinical phenotypes. We identified a LQTS family harboring three compound mutations in different genes (KCNQ1-R174C, hERG-E1039X and SCN5A-E428K). KCNQ1-R174C, hERG-E1039X and SCN5A-E428K mutations and/or relevant wild-type (WT) cDNAs were respectively expressed in mammalian cells. I Ks -like, I Kr -like, I Na -like currents and the functional interaction between KCNQ1-R174C and hERG-E1039X channels were studied using patch-clamp and immunocytochemistry techniques...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29448785/mc-pdft-can-calculate-singlet-triplet-splittings-of-organic-diradicals
#10
Samuel J Stoneburner, Donald G Truhlar, Laura Gagliardi
The singlet-triplet splittings of a set of diradical organic molecules are calculated using multiconfiguration pair-density functional theory (MC-PDFT), and the results are compared with those obtained by Kohn-Sham density functional theory (KS-DFT) and complete active space second-order perturbation theory (CASPT2) calculations. We found that MC-PDFT, even with small and systematically defined active spaces, is competitive in accuracy with CASPT2, and it yields results with greater accuracy and precision than Kohn-Sham DFT with the parent functional...
February 14, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29448743/effects-of-mg-addition-with-natural-aging-time-on-two-step-aging-behavior-in-al-mg-si-alloys
#11
Jiwoo Im, JaeHwang Kim
Influence of Mg contents with the natural aging (NA) time on the two-step aging behavior in Al-Mg-Si alloys is studied. Hardness is gradually increased during NA in the 3M4S, whereas dramatic increase of hardness after NA for 3.6 ks is confirmed in the 9M4S. Similar peak hardness is confirmed between the two-step aged and single aged samples in the 3M4S. It means that there is no negative effect of two-step aging. On the other hand, the peak hardness is decreased for the naturally-aged sample compared with the single aged one in the 9M4S...
March 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29446828/novel-insights-on-testicular-volume-and-testosterone-replacement-therapy-in-klinefelter-patients-undergoing-testicular-sperm-extraction-a-retrospective-clinical-study
#12
Andrea Garolla, Riccardo Selice, Massimo Menegazzo, Umberto Valente, Filiberto Zattoni, Massimo Iafrate, Tommaso Prayer-Galetti, Marina Gardiman Paola, Alberto Ferlin, Andrea Di Nisio, Carlo Foresta
STUDY QUESTION: To investigate whether sperm recovery is related to clinical features, hormone parameters and testosterone replacement therapy (TRT) in patients with Klinefelter syndrome (KS). SUMMARY ANSWER: This study provides three interesting insights: i) the probability to retrieve sperm is not related to testicular volume; ii) TRT does not affect sperm retrieval rate (SRR); iii) reduced levels of LH and FSH represent a negative predictor of sperm retrieval in patients with TRT...
February 15, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29446476/the-role-of-human-papillomavirus-in-laryngeal-cancer-in-southern-china
#13
Eddy Wh Lam, Michael Mh Chan, Cynthia Kc Wai, Chi Man Ngai, Zigui Chen, Martin Cs Wong, Apple Cm Yeung, Joanna Hm Tong, Amy Bw Chan, K F To, Paul Ks Chan
Objective Delineate the role of human papillomavirus (HPV) in laryngeal cancer in Southern Chinese. Study Design A retrospective cross-sectional study. Setting A major otorhinolaryngology referral center in Hong Kong. Subjects and Methods Eighty-five Chinese patients with histology-confirmed laryngeal squamous cell carcinoma (LSCC) diagnosed between 2005 and 2010 were examined for the status of HPV by PCR, and the expression of p16 and p53 by immunohistochemistry. The HPV, p16 and p53 findings were correlated with clinicopathological features, recurrence and 5-year survival...
February 15, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29446116/does-integrated-academic-and-health-education-prevent-substance-use-systematic-review-and-meta-analyses
#14
REVIEW
G J Melendez-Torres, T Tancred, A Fletcher, J Thomas, R Campbell, C Bonell
BACKGROUND: Prevention of substance (alcohol, tobacco, illegal/legal drug) use in adolescents is a public health priority. As the scope for school-based health education is constrained in school timetables, interventions integrating academic and health education have gained traction in the UK and elsewhere, though evidence for their effectiveness remains unclear. We sought to synthesize the effectiveness of interventions integrating academic and health education for the prevention of substance use...
February 15, 2018: Child: Care, Health and Development
https://www.readbyqxmd.com/read/29444404/the-polarizable-density-embedding-coupled-cluster-method
#15
Dalibor Hr Scaron Ak, Jógvan Magnus Haugaard Olsen, Jacob Kongsted
We present theory and implementation of the polarizable density embedding (PDE) model in combination with coupled cluster (CC) theory (PDE-CC). This model has been implemented in the Dalton quantum chemistry program by adapting the CC code to the polarizable embedding library (PElib). In the PDE-CC method, the smaller, but chemically important core region is described with a high-level CC method. The environment surrounding the core region can be separated into two levels of description: an inner and an outer region...
February 14, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29442969/development-of-antibacterial-composite-electrospun-chitosan-coated-polypropylene-materials
#16
Melike Gozutok, Ahmet Ozan Basar, Hilal Turkoglu Sasmazel
In this study, a natural antibacterial substance chitosan was coated with/without potassium sorbate (KS) (0.8% (w/w) of KS, 8% (w/v) chitosan) onto the polypropylene (PP) film by using electrospinning technique to obtain novel antibacterial composite materials for various applications such as wound dressing, tissue engineering, drug delivery and food packaging. Atmospheric pressure plasma surface treatment was applied onto polypropylene films in order to increase its wettability thus enhancing the adhesion capacity of the films and the optimum CA value was determined as 42...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29441621/novel-interstitial-deletion-in-xp22-3-in-a-typical-x-linked-recessive-family-with-kallmann-syndrome
#17
Y Niu, C Zhou, H Xu, D Wang, Y Chen, Z Li, T Wang, G Pokhrel, D W Wang, J Liu
Kallmann syndrome (KS) is a clinically and genetically heterogeneous condition characterised by hypogonadotropic hypogonadism with anosmia or hyposmia. More than nineteen genes causing KS have been reported to date. KAL1, first identified to causing the X-linked form of KS, accounts for 10%-20% of KS patients. In this study, we designed a panel including 17 known genes causing KS for genetic diagnosis and research and report a typical and rare family of which three generations had been affected by KS. A novel CNV in Xp22...
February 14, 2018: Andrologia
https://www.readbyqxmd.com/read/29441417/the-adolescent-idiopathic-scoliotic-ivd-displays-advanced-aggrecanolysis-and-a-glycosaminoglycan-composition-similar-to-that-of-aged-human-and-ovine-ivds
#18
Cindy C Shu, James Melrose
PURPOSE: The present study was designed to ascertain how altered biomechanics in adolescent idiopathic scoliotic (AIS) intervertebral discs (IVDs) affected tissue compositions and aggrecan processing compared to age matched and aged human IVDs. Newborn, 2- and 10-year-old ovine IVDs were also examined. METHODS: Aggrecan populations were separated by Sepharose CL2B chromatography, composite agarose polyacrylamide gel electrophoresis (CAPAGE) and identified by immunoblotting...
February 13, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29441101/high-dose-rate-brachytherapy-in-the-treatment-of-skin-kaposi-sarcoma
#19
María Ángeles González Ruiz, Juan Quirós Rivero, Julia Luisa Muñoz García, Joaquín José Cabrera Rodríguez, Yesika Ríos Kavadoy, María Francisca Ropero Carmona, Almudena Corbacho Campos, Fernando García Urra, María Cristina Cruz Muñoz, Amanda Ruiz Herrero, Pedro Almendral Manzano
Purpose: The aim of the study is to review our experience in treatment of Kaposi sarcoma (KS) lesions with high-dose-rate (HDR) brachytherapy. Material and methods: We present five new KS lesions (three patients) that were treated in our hospital from May 2016 to February 2017 with HDR brachytherapy using Valencia applicators. The treatment was delivered in 5 Gy fractions over five sessions, on alternate days. Total dose of 25 Gy (EQD2 31.25 Gy) was delivered. All patients were male, Caucasian, without a history of HIV, organ transplantation, or current immunosuppressive therapy...
December 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29439928/post-consumer-plastic-packaging-waste-in-england-assessing-the-yield-of-multiple-collection-recycling-schemes
#20
John N Hahladakis, Phil Purnell, Eleni Iacovidou, Costas A Velis, Maryann Atseyinku
The European Commission (EC) recently introduced a 'Circular Economy Package', setting ambitious recycling targets and identifying waste plastics as a priority sector where major improvements are necessary. Here, the authors explain how different collection modalities affect the quantity and quality of recycling, using recent empirical data on household (HH) post-consumer plastic packaging waste (PCPP) collected for recycling in the devolved administration of England over the quarterly period July-September 2014...
February 10, 2018: Waste Management
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