Project Manager/Directors

Hassan Chaib

Director of Stem Cell Genomics and Sequencing Center

Ph.D, Genetics

Hassan used early cutting edge technologies of the human genome to identify the first genes causing hereditary hearing loss.  More During postdoctoral and junior faculty positions at the University Michigan, he pioneered microarray technologies in the prostate cancer field and the identification of genes involved in kidney disease. In 2011, he joined the Genetics Department at Stanford University, focusing on next generation sequencing technologies and stem cell therapy of muscular dystrophy. He led several projects between Stanford and the major sequencing companies Illumina and Complete Genomics. Hassan is a co-author of 30 manuscripts.



Kévin Contrepois

Director of Metabolomics/Lipidomics

Université Paris Sud (Paris XI), Ph.D.

Kévin Contrepois is an expert in metabolite profiling and liquid chromatography tandem mass spectrometry.  More He leads the metabolomics and lipidomics research in the Snyder laboratory at Stanford University, California, USA. By integrating multi-omics data sets, he is interested in the discovery of biomarkers and in understanding the pathogenesis of common diseases (i.e. cancer, diabetes, and cardiovascular disorders), with a special emphasis on host-gut microbiome interactions. He recently developed an optimized analytical platform involving the combination of HILIC- and RPLC-MS for the comprehensive metabolic profiling of human urine and plasma.


Casandra Trowbridge

Administrative and Operations Director, Metabolic Health Center

University of South Florida


Casandra Trowbridge co-directs the Stanford Metabolic Health Center, Maternal and Child Health with a team of faculty and staff  More directors.  She leads administration and operations, and is involved in Center activities across Stanford Medicine, Stanford Children’s Health, and Stanford Health Care. 

Casandra’s administrative and project/program management career started out as an intern at The White House during the G.W. Bush Administration.  In the years following, she worked across different sectors and industries, and one day landed in basic science research, specifically in genetics and genomics. She went to work for the Broad Institute of MIT and Harvard and was part of the Genotype-Tissue Expression Project (GTEx) as well as the Broad Fellows Program. In November 2017, Casandra joined the Snyder Lab and Stanford’s Genetics Department and entered into the metabolomics space.  She helped launch the Stanford Metabolic Health Center, which aims to improve metabolic disease prediction, prevention, and treatment for neonates and children.


Annika Weimer

Project Manager ENCODE and PsychENCODE

Institut of Plant Molecular Biology CNRS:  Strasbourg, Alsace, France, Ph.D.

Annika leads the ENCODE Production Center for Mapping Regulatory Regions of the Human Genome.  More She studied Biology in Germany and worked on cell-cycle checkpoint control during her PhD in France. After postdoctoral positions in Belgium and in the Biology department at Stanford, Annika joined Prof. Snyder’s lab in the Genetics Department. The Production Center for Mapping Regulatory Regions of the Human Genome is part of the ENCODE (Encyclopedia of DNA Elements) Consortium - an international collaboration of research groups funded by the National Human Genome Research Institute (NHGRI). Our goal at the Snyder ENCODE Production Center is to build a comprehensive map of regulatory regions in the human genome using cutting-edge genomics technology. Annika also manages Prof. Snyder’s PsychENCODE project: Many devastating neuropsychiatric disorders have a strong genetic predisposition. Over the past decade psychiatric genetics research, taking advantage of the unfolding genome technology revolution, has begun revealing an ever-increasing number of highly credible candidate loci that can be expected to constitute important parts of this strong genetic predisposition. Our PsychENCODE project (together with Prof. Alexander Urban, Stanford) was formed to meet these challenges by applying newly available and emerging methods for functional genomics analyses to primary tissue samples from human brains of donors who had been affected by neuropsychiatric disorders.