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- Stanley Lu, Daniel Ahn, Glyn Johnson, Meng Law, David Zagzag, Robert I. Grossman
- Radiology
- 2004
PURPOSE
To determine whether diffusion-tensor magnetic resonance (MR) imaging metrics of peritumoral edema can be used to differentiate intra- from extraaxial lesions, metastatic lesions from… (More)
- Stanley Lu, Daniel Ahn, Glyn Johnson, Soonmee Cha
- AJNR. American journal of neuroradiology
- 2003
BACKGROUND AND PURPOSE
Diffusion tensor imaging (DTI) is an advanced MR technique that describes the movement of water molecules by using two metrics, mean diffusivity (MD), and fractional anisotropy… (More)
- Nemanja Rodić, Jared Steranka, +13 authors Kathleen H. Burns
- Nature Medicine
- 2015
Pancreatic ductal adenocarcinoma (PDAC) is typically diagnosed after the disease has metastasized; it is among the most lethal forms of cancer. We recently described aberrant expression of an open… (More)
- Ignacío Pérez de Castro, Roberto Diaz, +5 authors Angel Pellicer
- Cancer research
- 2003
Ras proteins have a key role in the regulation of several cellular functions, and are involved in a significant percentage of human tumors. However, the specific functions of the different Ras… (More)
- Roberto Diaz, Jeffrey Lue, +6 authors Angel Pellicer
- International journal of cancer
- 2005
Point mutations in ras genes have been found in a large number and wide variety of human tumors. These oncogenic Ras mutants are locked in an active GTP-bound state that leads to a constitutive and… (More)
- Vladimir S Yakopson, Joseph C Flanagan, Daniel Ahn, Betsy P Luo
- Saudi journal of ophthalmology : official journal…
- 2011
Dacryocystorhinostomy (DCR) is a procedure of choice for nasolacrimal duct obstruction and chronic dacryostenosis in the setting of patent canaliculi and a functional lacrimal pump. Two major… (More)
- Roberto Diaz, Lluis A Lopez-Barcons, +6 authors Angel Pellicer
- Carcinogenesis
- 2003
Ras proteins have been found mutated in about one-third of human tumors. In vitro, Ras has been shown to regulate distinct and contradictory effects, such as cellular proliferation and apoptosis.… (More)
- Sujata S Chaudhari, Vinai Chittezham Thomas, +4 authors Kenneth W Bayles
- Molecular microbiology
- 2016
The Staphylococcus aureus LysR-type transcriptional regulator, CidR, activates the expression of two operons including cidABC and alsSD that display pro- and anti-death functions, respectively.… (More)
- Chul Woo Ahn, Daniel Ahn
- Journal of investigative medicine : the official…
- 2010
A randomized clinical trial is widely regarded as the most rigorous study design to determine the efficacy of intervention because spurious causality and bias associated with other experimental… (More)
- Daniel Ahn, Praveen Guturu
- World journal of gastroenterology
- 2010
The PillCam ESO (Given Imaging, Israel) or esophageal capsule endoscopy (ECE) is a novel technique used in the diagnostic evaluation of esophagus. Many studies have been performed to compare the… (More)