Results 91 to 100 of about 2,480,939 (303)

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Synthesis of polydisulphide via iodine oxidation for self-healing applications

Vietnam Journal of Science, Technology and Engineering
Self-healing materials with scratch-healing capabilities have garnered significant attention in recent years. Among the various reversible bonds investigated as healing mechanisms in polymer materials, dynamic disulphide chemistry has been particularly ...
Thuy Thu Truong, Le-Thu T. Nguyen
doaj   +3 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Michael addition reaction in C-5 of Camptothecin

Journal of Saudi Chemical Society
A simple method for Michael addition at C-5 of Camptothecin has been developed to construct 5-CPT derivatives. The addition products were obtained with moderate yields, and the structures of the target compounds were characterized by 1H NMR, 13C NMR, and
Changkuo Zhao, Linming Zuo, Xi Ke, Xianheng Wang   +3 more
doaj   +1 more source

Coverage Rates Stabilize for Children’s Health Insurance: State Policy Change May Be Needed to Address Remaining Children Without Insurance [PDF]

, 2015
This brief uses data from the American Community Survey to estimate children’s health insurance coverage from 2008–2013 across the United States as well as by region, place type, and type of coverage. Author Michael Staley reports that decreases in rates
Staley, Michael J.
core   +1 more source

Cinchona based squaramide catalysed enantioselective Michael addition of a-nitrophosphonates to aryl acrylates: enantioselective synthesis of quaternary a-aminophosphonates [PDF]

, 2013
Several cinchona based squaramide catalysts were applied to the asymmetric Michael addition of α-nitroethylphosphonates to acrylic acid aryl esters, resulting in high yields and enantioselectivities.
Gönczi, Katalin, Hegedűs, László, Jászay, Zsuzsa, Kardos, György, Kubinyi, Miklós, Kállay, Mihály, Petneházy, Imre, Pham, Truong Son, Szabó, Pál, Süle, Krisztina, Tőke, László   +10 more
core   +1 more source

MiR‐513a promotes human erythroid differentiation by modulating c‐Jun

FEBS Open Bio, EarlyView.
During early human erythropoiesis, miR‐513a promoted erythroid differentiation in primary human CD34+ hematopoietic stem‐progenitor cells and human TF‐1 erythroleukemic cells by indirectly decreasing c‐Jun and phospho‐c‐Jun expression, which are associated with increased GATA1 expression.
MinJung Kim, Brittany Taylor, Shannon Bolten, Christian L. Eberly, Mahliya Abdurahman, T. Michael Creed, Acong Yang, Taylor L. Hatchet, Tristan Dyson, Shuo Gu, Curt I. Civin, Tami J. Kingsbury   +11 more
wiley   +1 more source

Characterization and quantification of endogenous fatty acid nitroalkene metabolites in human urine[S]

Journal of Lipid Research, 2013
The oxidation and nitration of unsaturated fatty acids transforms cell membrane and lipoprotein constituents into mediators that regulate signal transduction.
Sonia R. Salvatore, Dario A. Vitturi, Paul R.S. Baker, Gustavo Bonacci, Jeffrey R. Koenitzer, Steven R. Woodcock, Bruce A. Freeman, Francisco J. Schopfer   +7 more
doaj   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Frailty Exacerbates Disability in Progressive Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background To evaluate frailty in severe progressive multiple sclerosis (PMS) and to investigate the underlying mechanisms. Methods This prospective, cross‐sectional, multicenter study enrolled a late severe PMS group requiring skilled nursing (n = 53) and an age, sex, and disease duration‐matched control PMS group (n = 53).
Taylor R. Wicks, Anna Wolska, Diala Ghazal, Dejan Jakimovski, Bianca Weinstock‐Guttman, Alexander Burnham, Niels Bergsland, Michael G. Dwyer, Alan T. Remaley, Robert Zivadinov, Murali Ramanathan   +10 more
wiley   +1 more source