User profiles for Alex R. Dalal

Alex R. Dalal, MD

Stanford Cardiothoracic Surgery
Verified email at stanford.edu
Cited by 201

Almanac—retrieval-augmented language models for clinical medicine

C Zakka, R Shad, A Chaurasia, AR Dalal, JL Kim… - NEJM AI, 2024 - ai.nejm.org
Background Large language models (LLMs) have recently shown impressive zero-shot
capabilities, whereby they can use auxiliary data, without the availability of task-specific training …

Lineage-specific induced pluripotent stem cell–derived smooth muscle cell modeling predicts integrin alpha-V antagonism reduces aortic root aneurysm formation in …

K Nakamura, AR Dalal, N Yokoyama… - … and Vascular Biology, 2023 - Am Heart Assoc
Background: The role of increased smooth muscle cell (SMC) integrin αv signaling in Marfan
syndrome (MFS) aortic aneurysm remains unclear. Herein, we examine the mechanism …

Enhanced caspase activity contributes to aortic wall remodeling and early aneurysm development in a murine model of Marfan syndrome

FC Emrich, H Okamura, AR Dalal, K Penov… - … and Vascular Biology, 2015 - Am Heart Assoc
Objective— Rupture and dissection of aortic root aneurysms remain the leading causes of
death in patients with the Marfan syndrome, a hereditary connective tissue disorder that …

Embryologic origin influences smooth muscle cell phenotypic modulation signatures in murine Marfan syndrome aortic aneurysm

AJ Pedroza, AR Dalal, R Shad… - … , and vascular biology, 2022 - Am Heart Assoc
Background: Aortic root smooth muscle cells (SMC) develop from both the second heart field
(SHF) and neural crest. Disparate responses to disease-causing Fbn1 variants by these …

Comprehensive Integration of Multiple Single-Cell Transcriptomic Data Sets Defines Distinct Cell Populations and Their Phenotypic Changes in Murine …

…, AR Dalal, H Alemany, HJ Kim, R Kundu… - … and Vascular Biology, 2024 - Am Heart Assoc
BACKGROUND: The application of single-cell transcriptomic (single-cell RNA sequencing)
analysis to the study of atherosclerosis has provided unique insights into the molecular and …

[HTML][HTML] Outcomes of reoperative aortic root replacement after previous acute type A dissection repair

AJ Pedroza, AR Dalal, A Krishnan, N Yokoyama… - Seminars in Thoracic …, 2023 - Elsevier
Limited aortic root repair for acute type A dissection is associated with greater risk of proximal
reoperations compared to full aortic root replacement. Surgical outcomes for patients …

Long‐term miR‐29b suppression reduces aneurysm formation in a Marfan mouse model

…, F Emrich, J Trojan, P Chiu, AR Dalal… - Physiological …, 2017 - Wiley Online Library
Aortic root aneurysm formation and subsequent dissection and/or rupture remain the leading
cause of death in patients with Marfan syndrome. Our laboratory has reported that miR‐29b …

[HTML][HTML] Quantitative proteomics reveal lineage-specific protein profiles in iPSC-derived Marfan syndrome smooth muscle cells

C Iosef, AJ Pedroza, JZ Cui, AR Dalal, M Arakawa… - Scientific Reports, 2020 - nature.com
Marfan syndrome (MFS) is a connective tissue disorder caused by mutations in the FBN1
gene that produces wide disease phenotypic variability. The lack of ample genotype–…

Smooth Muscle Cell Klf4 Expression Is Not Required for Phenotype Modulation or Aneurysm Formation in Marfan Syndrome Mice—Brief Report

AJ Pedroza, AR Dalal, R Shad… - … and Vascular Biology, 2023 - Am Heart Assoc
Background: Smooth muscle cell (SMC) phenotypic reprogramming toward a mixed
synthetic-proteolytic state is a central feature of aortic root aneurysm in Marfan syndrome (MFS). …

Assessment of elastin deficit in a Marfan mouse aneurysm model using an elastin-specific magnetic resonance imaging contrast agent

H Okamura, LJ Pisani, AR Dalal, F Emrich… - Circulation …, 2014 - Am Heart Assoc
Background— Ascending aortic dissection and rupture remain a life-threatening complication
in patients with Marfan syndrome. The extracellular matrix provides strength and elastic …