User profiles for "author:R O'Sullivan"

Richard O'Sullivan

- Verified email at bigpond.com.au - Cited by 3934

Roger O'Sullivan

- Verified email at publichealth.ie - Cited by 1527

Telomeres: protecting chromosomes against genome instability

RJ O'sullivan, J Karlseder - Nature reviews Molecular cell biology, 2010 - nature.com
The natural ends of linear chromosomes require unique genetic and structural adaptations
to facilitate the protection of genetic material. This is achieved by the sequestration of the …

An epigenetic road map for histone lysine methylation

M Lachner, RJ O'Sullivan… - Journal of cell …, 2003 - journals.biologists.com
Histone N-termini (tails) undergo diverse post-translational modifications, including
acetylation, phosphorylation, methylation, ubiquitination and ADP-ribosylation (van Holde …

Consequences of physical inactivity in older adults: A systematic review of reviews and meta‐analyses

C Cunningham, R O'Sullivan… - … journal of medicine & …, 2020 - Wiley Online Library
Background Globally, populations are ageing. Typically, physical activity levels decline and
health worsens as we age; however, estimates of the impact of physical inactivity for …

[PDF][PDF] Partitioning and plasticity of repressive histone methylation states in mammalian chromatin

AHFM Peters, S Kubicek, K Mechtler, RJ O'Sullivan… - Molecular cell, 2003 - cell.com
Methylation of position-specific lysine residues in histone N termini is a central modification
for regulating epigenetic transitions in chromatin. Each methylatable lysine residue can exist …

[HTML][HTML] Reversal of H3K9me2 by a small-molecule inhibitor for the G9a histone methyltransferase

S Kubicek, RJ O'Sullivan, EM August, ER Hickey… - Molecular cell, 2007 - cell.com
Histone lysine methylation has important roles in the organization of chromatin domains and
the regulation of gene expression. To analyze its function and modulate its activity, we …

Functional magnetic resonance imaging of symptom provocation in obsessive-compulsive disorder

HC Breiter, SL Rauch, KK Kwong… - Archives of general …, 1996 - jamanetwork.com
Background: The new technique of functional magnetic resonance imaging was used to
investigate the mediating neuroanatomy of obsessive-compulsive disorder symptoms …

Telomerase activation by genomic rearrangements in high-risk neuroblastoma

M Peifer, F Hertwig, F Roels, D Dreidax, M Gartlgruber… - Nature, 2015 - nature.com
Neuroblastoma is a malignant paediatric tumour of the sympathetic nervous system.
Roughly half of these tumours regress spontaneously or are cured by limited therapy. By …

The profile of repeat‐associated histone lysine methylation states in the mouse epigenome

JHA Martens, RJ O'Sullivan, U Braunschweig… - The EMBO …, 2005 - embopress.org
Histone lysine methylation has been shown to index silenced chromatin regions at, for
example, pericentric heterochromatin or of the inactive X chromosome. Here, we examined …

Patellar tendinosis (jumper's knee): findings at histopathologic examination, US, and MR imaging. Victorian Institute of Sport Tendon Study Group.

KM Khan, F Bonar, PM Desmond, JL Cook, DA Young… - Radiology, 1996 - pubs.rsna.org
PURPOSE: To determine the histopathologic findings of patellar tendinosis (" jumper's
knee") demonstrated with ultrasonography (US) and magnetic resonance (MR) imaging …

Standing Alfvén waves in the magnetosphere

WD Cummings, RJ O'sullivan… - Journal of Geophysical …, 1969 - Wiley Online Library
Transverse, low‐frequency oscillations in the magnetic field have been recorded in the
equatorial plane at 6.6 RE (earth radii) with the UCLA magnetometer on board ATS 1. The …