User profiles for Sevan Hopyan

Sevan Hopyan

The Hospital for Sick Children
Verified email at sickkids.ca
Cited by 3387

[HTML][HTML] Development and testing of a multidimensional iPhone pain assessment application for adolescents with cancer

…, LL Dupuis, JT Gerstle, B Alman, S Hopyan… - Journal of medical …, 2013 - jmir.org
Background: Pain is one of the most common and distressing symptoms reported by adolescents
with cancer. Despite advancements in pain assessment and management research, …

A mutant PTH/PTHrP type I receptor in enchondromatosis

S Hopyan, N Gokgoz, R Poon, RC Gensure, C Yu… - Nature …, 2002 - nature.com
Enchondromas are common benign cartilage tumors of bone. They can occur as solitary
lesions or as multiple lesions in enchondromatosis (Ollier and Maffucci diseases). Clinical …

In Situ Mechanical Characterization of the Cell Nucleus by Atomic Force Microscopy

H Liu, J Wen, Y Xiao, J Liu, S Hopyan, M Radisic… - ACS …, 2014 - ACS Publications
The study of nuclear mechanical properties can provide insights into nuclear dynamics and
its role in cellular mechanotransduction. While several methods have been developed to …

Constitutive hedgehog signaling in chondrosarcoma up-regulates tumor cell proliferation

TD Tiet, S Hopyan, P Nadesan, N Gokgoz… - The American journal of …, 2006 - Elsevier
Chondrosarcoma is a malignant cartilage tumor that may arise from benign precursor lesions,
such as enchondromas. Some cases of multiple enchondromas are caused by a mutation …

Clinical outcome of children and adults with localized Ewing sarcoma: impact of chemotherapy dose and timing of local therapy

AA Gupta, A Pappo, N Saunders, S Hopyan… - Cancer, 2010 - Wiley Online Library
BACKGROUND: As Ewing sarcoma (EWS) can affect children and adults, these patients
can be treated at either a pediatric or an adult institution. This study investigated whether …

Intracellular manipulation and measurement with multipole magnetic tweezers

…, Z Zhang, M Zhu, C Dai, F Wang, M Tan, S Hopyan… - Science robotics, 2019 - science.org
The capability to directly interrogate intracellular structures inside a single cell for measurement
and manipulation is important for understanding subcellular and suborganelle activities, …

Oriented cell motility and division underlie early limb bud morphogenesis

…, M Wells, AK Hadjantonakis, S Hopyan - …, 2010 - journals.biologists.com
The vertebrate limb bud arises from lateral plate mesoderm and its overlying ectoderm.
Despite progress regarding the genetic requirements for limb development, morphogenetic …

Anisotropic stress orients remodelling of mammalian limb bud ectoderm

…, R Fernandez-Gonzalez, Y Sun, S Hopyan - Nature cell …, 2015 - nature.com
The physical forces that drive morphogenesis are not well characterized in vivo, especially
among vertebrates. In the early limb bud, dorsal and ventral ectoderm converge to form the …

[PDF][PDF] Formation of proximal and anterior limb skeleton requires early function of Irx3 and Irx5 and is negatively regulated by Shh signaling

…, R Mo, V Puviindran, S Deimling, X Zhang, S Hopyan… - Developmental cell, 2014 - cell.com
Limb skeletal pattern relies heavily on graded Sonic hedgehog (Shh) signaling. As a morphogen
and growth cue, Shh regulates identities of posterior limb elements, including the ulna/…

Construct validity and reliability of a real-time multidimensional smartphone app to assess pain in children and adolescents with cancer

…, AM Maloney, LL Dupuis, JT Gerstle, S Hopyan… - Pain, 2015 - journals.lww.com
We evaluated the construct validity (including responsiveness), reliability, and feasibility of
the Pain Squad multidimensional smartphone-based pain assessment application (app) in …