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William J Koros, Chen Zhang
Materials research is key to enable synthetic membranes for large-scale, energy-efficient molecular separations. Materials with rigid, engineered pore structures add an additional degree of freedom to create advanced membranes by providing entropically moderated selectivities. Scalability - the capability to efficiently and economically pack membranes into practical modules - is a critical yet often neglected factor to take into account for membrane materials screening. In this Progress Article, we highlight continuing developments and identify future opportunities in scalable membrane materials based on these rigid features, for both gas and liquid phase applications...
March 2017: Nature Materials
N P Moschopoulos, S Kaprinis, J Nimatoudis
The term "Cotard's syndrome" is used to describe a number of clinical features, mostly hypochondriac and nihilistic delusions, the most characteristic of which are the ideas "I am dead" and "my internal organs do not exist". Besides, anxious and depressed mood, delusions of damnation, possession and immortality, suicidal and self-mutilating behavior are included. The first description of the syndrome was made in 1880 by Cotard, who presented the case of a female patient in a lecture. He originally named it "hypochondriac delusion", and some years later "delusion of negations", while it was named "Cotard delusion" after his death...
October 2016: Psychiatrikē, Psychiatriki
Anastasia Bougea, Christos Koros, Maria Stamelou, Athina Simitsi, Nikolaos Papagiannakis, Roubina Antonelou, Dimitra Papadimitriou, Marianthi Breza, Konstantinos Tasios, Stella Fragkiadaki, Xenia Geronicola Trapali, Mara Bourbouli, Georgios Koutsis, Sokratis G Papageorgiou, Elisabeth Kapaki, George P Paraskevas, Leonidas Stefanis
INTRODUCTION: The p.A53T point mutation in SNCA, the alpha-synuclein gene, has been linked to a rare dominant form of Parkinson's disease (PD). METHODS: Here, we describe two apparently unrelated cases of p.A53T (G209A) SNCA mutation carriers with an atypical initial manifestation and disease course. Moreover, cerebrospinal fluid (CSF) levels of tau, p-tau and amyloid Aβ42 were measured in these patients and in an additional cohort of 5 symptomatic and 2 asymptomatic p...
December 6, 2016: Parkinsonism & related Disorders
Marta Rogatko-Koroś, Renata Mika-Witkowska, Katarzyna Bogunia-Kubik, Barbara Wysoczańska, Emilia Jaskuła, Katarzyna Kościńska, Klaudia Nestorowicz, Joanna Dziopa, Urszula Szlendak, Sławomir Gwozdowicz, Elżbieta Graczyk-Pol, Andrzej Lange, Jacek Nowak
Natural killer (NK) cell licensing status depends on clonal expression of inhibitory killer cell immunoglobulin-like receptors (iKIR) and short term HLA environment. Licensed NK cells are more efficient in tumor killing than unlicensed NK cells. Cognate KIR-HLA pairs in hematopoietic stem cell transplant (HSCT) donor and recipient are decisive for the possible change in the NK cell licensing status after HSCT. We assessed clinical outcomes in 297 patients with lymphoproliferative or myeloproliferative malignancies, or myelodysplastic syndrome in a model with upward licensing, downward resetting, and unchanged licensing genetics status after T cell replate HSCT from unrelated donors...
December 8, 2016: Archivum Immunologiae et Therapiae Experimentalis
Yumiko Miyatake, Tetsuya Shiuchi, Kazuaki Mawatari, Satomi Toda, Yasuko Taniguchi, Akari Futami, Fukiko Sato, Masashi Kuroda, Mayu Sebe, Rie Tsutsumi, Nagakatsu Harada, Yasuhiko Minokoshi, Tadahiro Kitamura, Koro Gotoh, Masaki Ueno, Yutaka Nakaya, Hiroshi Sakaue
There is an increasing interest in elucidating the molecular mechanisms by which voluntary exercise is regulated. In this study, we examined how the central nervous system regulates exercise. We used SPORTS rats, which were established in our laboratory as a highly voluntary murine exercise model. SPORTS rats showed lower levels of serum ghrelin compared with those of the parental line of Wistar rats. Intracerebroventricular and intraperitoneal injection of ghrelin decreased wheel-running activity in SPORTS rats...
January 2017: Peptides
Kanami Saito, Hisae Ando, Koro Goto, Tetsuya Kakuma, Yasushi Kawano, Hisashi Narahara, Yutaka Hatano, Sakuhei Fujiwara
No abstract text is available yet for this article.
October 2016: Annals of Dermatology
Gongping Liu, Nanwen Li, Stephen J Miller, Danny Kim, Shouliang Yi, Ying Labreche, William J Koros
New rigid polyimides with bulky CF3 groups were synthesized and engineered into high-performance hollow fiber membranes. The enhanced rotational barrier provided by properly positioned CF3 side groups prohibited fiber transition layer collapse during cross-linking, thereby greatly improving CO2 /CH4 separation performance compared to conventional materials for aggressive natural gas feeds.
October 24, 2016: Angewandte Chemie
Masahide Okamoto, Mitsuhiro Okamoto, Koro Gotoh, Takayuki Masaki, Yoshinori Ozeki, Hisae Ando, Manabu Anai, Asami Sato, Yuichi Yoshida, So Ueda, Tetsuya Kakuma, Hirotaka Shibata
Anti-programmed cell death-1 (PD-1) antibodies are regarded as a risk factor for insulin-dependent diabetes mellitus as a side-effect. While a small number of cases have been reported, evidence remains limited. This is the first report of an Asian patient developing insulin-dependent diabetes during anti-PD-1 therapy. A 55-year-old euglycemic woman receiving nivolumab for malignant melanoma showed abrupt onset of ketonuria, and elevated levels of plasma glucose (580 mg/dL) and hemoglobin A1c (7.0%). Over the next 2 weeks, serum C-peptide levels fell below the limit of detection...
November 2016: Journal of Diabetes Investigation
Ali A Rownaghi, Amit Kant, Xin Li, Harshul Thakkar, Amit Hajari, Yingxin He, Patrick J Brennan, Hooman Hosseini, William J Koros, Fateme Rezaei
In this work, the development of novel binary and ternary oxide/Torlon hollow fiber composites comprising zirconia, titania, and silica as amine supports was demonstrated. The resulting binary (Zr-Si/PAI-HF, Ti-Si/PAI-HF) and ternary (Zr-Ti-Si/PAI-HF) composites were then functionalized with monoamine-, diamine-, and triamine-substituted trialkoxysilanes and were evaluated in CO2 capture. Although the introduction of both Zr and Ti improved the CO2 adsorption capacity relative to that with Si/PAI-HF sorbents, zirconia was found to have a more favorable effect on the CO2 adsorption performance than titania, as previously demonstrated for amine sorbents in the powder form...
May 23, 2016: ChemSusChem
F Koro Koro, A F Ngatchou, J L Portal, C Gutierrez, F X Etoa, S I Eyangoh
Bovine tuberculosis is still prevalent and under-evaluated in cattle destined for human consumption in Cameroon. Potential reservoirs of the disease include livestock imported from countries endemic for bovine tuberculosis, such as Nigeria and Chad, and potential residual reservoirs in local livestock and wildlife. Few studies have been done in Cameroon to genotype the Mycobacterium tuberculosis complex (MTC) strains responsible for bovine tuberculosis. The aim of this work is to describe the population structure of MTC strains isolated from cattle, using spoligotyping as the genotyping method...
December 2015: Revue Scientifique et Technique
Dimitra Papadimitriou, Roubina Antonelou, Michael Miligkos, Matina Maniati, Nikolaos Papagiannakis, Sevasti Bostantjopoulou, Athannassios Leonardos, Christos Koros, Athina Simitsi, Sokratis G Papageorgiou, Elisabeth Kapaki, Roy N Alcalay, Alexandros Papadimitriou, Aglaia Athanassiadou, Maria Stamelou, Leonidas Stefanis
BACKGROUND: G209A SNCA mutation carriers represent an important group of genetic PD. We describe motor and nonmotor features of G209A SNCA mutation carriers. METHODS: Longitudinal clinical assessments over 2 years were collected in 22 symptomatic and 8 asymptomatic G209A SNCA mutation carriers. Motor and nonmotor rating scales were administered. Correlations were performed between clinical variables and disease duration or age. Penetrance was calculated using Kaplan-Meier survival curves...
August 2016: Movement Disorders: Official Journal of the Movement Disorder Society
Grace Chen, William J Koros, Christopher W Jones
Zeolite NaY and metal organic frameworks MIL-53(Al) and UiO-66(Zr) are spun with cellulose acetate (CA) polymer to create hybrid porous composite fibers for the selective adsorption of sulfur odorant compounds from pipeline natural gas. Odorant removal is desirable to limit corrosion associated with sulfur oxide production, thereby increasing lifetime in gas turbines used for electricity generation. In line with these goals, the performance of the hybrid fibers is evaluated on the basis of sulfur sorption capacity and selectivity, as well as fiber stability and regenerability, compared to their polymer-free sorbent counterparts...
April 20, 2016: ACS Applied Materials & Interfaces
Anna Kats, Maria Norgård, Zenebech Wondimu, Catalin Koro, Hernán Concha Quezada, Göran Andersson, Tülay Yucel-Lindberg
Periodontitis is characterized by chronic inflammation and osteoclast-mediated bone loss regulated by the receptor activator of nuclear factor-κB (RANK), RANK ligand (RANKL) and osteoprotegerin (OPG). The aim of this study was to investigate the effect of aminothiazoles targeting prostaglandin E synthase-1 (mPGES-1) on RANKL- and lipopolysaccharide (LPS)-mediated osteoclastogenesis and prostaglandin E2 (PGE2 ) production in vitro using the osteoclast precursor RAW 264.7 cells. RAW 264.7 cells were treated with RANKL or LPS alone or in combination with the aminothiazoles 4-([4-(2-naphthyl)-1,3-thiazol-2-yl]amino)phenol (TH-848) or 4-(3-fluoro-4-methoxyphenyl)-N-(4-phenoxyphenyl)-1,3-thiazol-2-amine (TH-644)...
June 2016: Journal of Cellular and Molecular Medicine
Andrea A Kim, Irene Mukui, Lucy N'gan'ga, Abraham Katana, Dan Koros, Joyce Wamicwe, Kevin M De Cock
BACKGROUND: In 2014, the Joint United Nations Programme on HIV/AIDS (UNAIDS) called for 90% of persons living with HIV (PLHIV) to know their status, 90% of these to be on antiretroviral therapy (ART), and 90% of these to be virally suppressed by 2020 (90-90-90). It is not clear whether planned ART scale-up in countries whose eligibility criteria for ART initiation are based on recommendations from the 2013 World Health Organization treatment guidelines will be sufficient to meet UNAIDS' new global targets...
2016: PloS One
Catalin Koro, Annelie Hellvard, Nicolas Delaleu, Veronika Binder, Carsten Scavenius, Brith Bergum, Izabela Główczyk, Helen M Roberts, Iain L C Chapple, Melissa M Grant, Maria Rapala-Kozik, Kinga Klaga, Jan J Enghild, Jan Potempa, Piotr Mydel
Carbamylation of lysine residues and protein N-termini is an ubiquitous, non-enzymatic post-translational modification. Carbamylation at sites of inflammation is due to cyanate formation during the neutrophil oxidative burst and may target lysine residues within the antimicrobial peptide LL-37. The bactericidal and immunomodulatory properties of LL-37 depend on its secondary structure and cationic nature, which are conferred by arginine and lysine residues. Therefore, carbamylation may affect the biological functions of LL-37...
April 2016: Innate Immunity
Parveen K Garg, Alice M Arnold, Karen D Hinckley Stukovsky, Carol Koro, Nancy S Jenny, Kenneth J Mukamal, Michael H Criqui, Curt D Furberg, Anne B Newman, Mary Cushman
OBJECTIVE: Although prior studies report a relationship between elevated lipoprotein-associated phospholipase A2 (Lp-PLA2) and incident cardiovascular disease, the prospective association of Lp-PLA2 with incident peripheral arterial disease (PAD) has not been studied. We investigated the association between Lp-PLA2 mass and activity and the risk of developing clinical PAD and low ankle-brachial index (ABI). APPROACH AND RESULTS: Among Cardiovascular Health Study participants, a population-based cohort of 5888 adults aged ≥65 years enrolled in 1989 to 1990, Lp-PLA2 mass and activity were measured in 4537 individuals without baseline PAD...
April 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
Regina Bussing, Dana Mason, Cynthia Wilson Garvan, Tina Gurnani, Mirka Koro-Ljungberg, Kenji Noguchi, Dolores Albarracin
Little is known about perceptions surrounding self-management for attention deficit hyperactivity disorder (ADHD), although such interventions appear commonly used and are considered essential components of the chronic care model. Our research is part of a mixed methods study that followed students at high and low risk for ADHD over 11 years. During the final study years, area-representative samples of 148 adolescents (54.8% participation; 97 ADHD high-risk group; 51 low-risk peers) and 161 parents (59.4% participation; 108 parents of high-risk adolescent; 53 parents of low-risk peer) completed a cross-sectional survey on community-identified self-management interventions for ADHD (activity outlets, sleep regulation, dietary restriction, homework help, family rules, and prayer)...
February 1, 2016: Journal of Child and Family Studies
Nikolaos Papagiannakis, Maria Xilouri, Christos Koros, Maria Stamelou, Roubina Antonelou, Matina Maniati, Dimitra Papadimitriou, Marina Moraitou, Helen Michelakakis, Leonidas Stefanis
BACKGROUND: Reduced expression of lysosomal-associated membrane protein 2a and heatshock-cognate 70 proteins, involved in chaperone-mediated autophagy and of glucocerebrosidase, is reported in PD brains. The aim of this study was to identify systemic alterations in lysosomal-associated membrane protein 2a, heatshock cognate-70, and glucocerebrosidase levels/activity in peripheral blood mononuclear cells from PD patients. METHODS: Protein/mRNA levels were assessed in PD patients from genetically undetermined background, alpha-synuclein (G209A/A53T), or glucocerebrosidase mutation carriers and age-/sex-matched controls...
November 2015: Movement Disorders: Official Journal of the Movement Disorder Society
Taishi Aosa, Seiichi Chiba, Hirokazu Kitamura, Keisuke Ina, Shuji Tatsukawa, Chinatsu Moriwaki, Huixing Wei, Koro Gotoh, Takayuki Masaki, Tetsuya Kakuma, Hirotaka Shibata, Yoshihisa Fujikura
Stress-induced inflammatory responses in the portal system are characterized by elevations in serum concentrations of interleukin-6 (IL-6) and endotoxins such as lipopolysaccharides (LPS). LPS translocation from the intestinal to the capillary lumen occurs via LPS endocytosis by the capillary endothelium. Because the capillary endothelium of the small intestinal submucosa is fenestrated, we determined the role of pore modifications within the fenestrated endothelium in relaying inflammatory stress responses in the portal vein...
July 2016: Histology and Histopathology
Chen Zhang, William J Koros
ZIFs are a unique class of porous solids topologically associated with zeolites, but dramatically different in components. Current research on ZIF-enabled membranes is highly imbalanced. Despite a large selection of available ZIF materials, seven out of ten published papers discuss ZIF-8-based membranes. This is partially due to insufficient knowledge on ZIFs' structure-transport property relationships as well as lack of capability to tailor their transport properties for particular separations. This Perspective will provide an account of recent progress in ZIF-enabled membranes and analyze the barriers that must be overcome to advance ZIF-enabled membranes beyond fundamental characterizations...
October 1, 2015: Journal of Physical Chemistry Letters
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