Table 1. Examples of primary human cell types and tissues for which eQTL analyses have been reported.

Study	Cell or tissue type	Condition	n	Ethnicity	Cohort	Ref.
Peripheral blood
Fehrmann et al. (2011)	Whole blood	Venesection	1469	European	UC (49); CeD (111); COPD (453); ALS cases and controls (856)	[14•]
Mehta et al. (2013)	Whole blood	Venesection	322a, 740 + 653b	European	Population cohorts	[46]
Westra et al. (2013)	Whole blood	Venesection	5311c, 2775b	European	9 cohorts	[8••]
Goring et al. (2007)	PBMCs	Freshly isolated	1240	Mexican-American	San Antonio Family Heart Study	[47]
Zeller et al. (2010)	CD14+ monocytes	Freshly isolated	1490	European	Gutenberg Heart Study	[48•]
Fairfax et al. (2012)	CD14+ monocytes	Freshly isolated	283	European	Healthy volunteers	[13•]
Fairfax et al. (2014)	CD14+ monocytes	Unstimulated, LPS, IFNγ	432	European	Healthy volunteers	[9••]
Raj et al. (2014)	CD14+ monocytes	Freshly isolated	401	Multi-ethnic	Healthy volunteers	[41]
Fairfax et al. (2012)	CD19+ B cells	Freshly isolated	283	European	Healthy volunteers	[13•]
Raj et al. (2014)	CD4+ T cells	Freshly isolated	407	Multi-ethnic	Healthy volunteers	[41]
Ferraro et al. (2014)	CD4+ T cells	Freshly isolated	168	European	T1D (60), T2D (30), healthy controls (78)	[49]
Ferraro et al. (2014)	CD4 + FOXP3+ regulatory T cells	Freshly isolated	168	European	T1D (60), T2D (30), healthy controls (78)	[49]
Dimas (2013)	Mixed T cell population	PHA stimulated (from umbilical cord blood)	75	European	Newborns	[17••]
Lee (2014)	Monocyte-derived dendritic cells	Unstimulated, LPS, influenza A, IFNβ	534	European	Healthy volunteers	[25••]
Other cell and tissue types
Dimas et al. (2013)	Fibroblasts	From umbilical cord blood	75	European	Newborns	[17••]
Wagner et al. (2014)	Fibroblasts	From forearm skin	62	European	Healthy donors	[50]
Zhong et al. (2010)	Adipose tissue (omental)	Surgical resection	916	European	Gastric bypass surgery patients	[51]
Zhong et al. (2010)	Adipose tissue (subcutaneous)	Surgical resection	870	European	Gastric bypass surgery patients	[51]
Fu et al. (2012)	Adipose tissue (visceral)	Surgical resection	77	European	Elective bariatric surgery patients	[52]
Fu et al. (2012)	Adipose tissue (subcutaneous)	Surgical resection	83	European	Elective bariatric surgery patients	[52]
Ding et al. (2010)	Skin	Biopsy	110	European	Psoriasis patients (53), healthy controls (57)	[53]
Schadt et al. (2008)	Liver	Postmortem and surgical resection	427	European	Liver collections at tissue resource centres	[54]
Zhong et al. (2010)	Liver	Surgical resection	707	European	Gastric bypass surgery patients	[51]
Innocenti et al. (2011)	Liver	Surgical	266	European and African	Donor	[55]
Fu et al. (2012)	Liver	Surgical resection	74	European	Elective bariatric surgery patients	[52]
Myers et al. (2007)	Brain	Postmortem	193	European	Neuropathologically normal human brain samples	[56]
Hao et al. (2012)	Lung	Lung resection (non neoplastic sample pulmonary parencyhma)	1111	European	Patients undergoing lung surgery for cancer	[57]
Fu et al. (2012)	Skeletal muscle	Surgical resection	83	European	Elective bariatric surgery patients	[52]

n, number of individuals in eQTL analysis. PBMCs, peripheral blood mononuclear cells; UC, ulcerative colitis; CeD, celiac disease; COPD, chronic obstructive pulmonary disease; ALS, amyotrophic lateral sclerosis; T1D, type 1 diabetes; T2D, type 2 diabetes.

^aDiscovery.

^bReplication.

^cMeta-analysis.