Table 1 Twin cohort details.

From: Monozygotic twins and triplets discordant for amyotrophic lateral sclerosis display differential methylation and gene expression

MZ set

ALS

Disease Status

Sex

Mutation

Age of onset

Age at samplingA

Disease duration (months)

450K samples (n)B

RNA-Seq samples (n)

EpiTYPER samples (n)

Female SALS twin set

SALS

ALS

F

 

42.7

43.5–45.1

Alive at 51 months

7(+1)

 

Unaffected

F

  

43.9–45.1

 

7(+1)

Male SALS twin set

SALS

ALS

M

 

78.5

79.8–80.2

28.4

3(+1)

3

 

Unaffected

M

  

79.8–80.2

 

3(+1)

3

C9orf72 twin set

FALS

ALS

M

C9orf72 HRE

52

54.1

36

1

1

 

Asymptomatic

M

C9orf72 HRE

 

54.3–55

 

2

2

SOD1 triplet set

FALS

ALS

F

SOD1 p.I114T

50

50.3

Unknown

1

1

 

Asymptomatic

F

SOD1 p.I114T

 

50.3

 

1

1

 

Asymptomatic

F

SOD1 p.I114T

 

50.3

 

1

1

Control twin set 1

NA

Control

F

 

NA

46.1

NA

1

 
 

Control

F

 

46.1

1

 

Control twin set 2

NA

Control

M

 

NA

36.8

NA

1

 

Control

M

 

31.8–43.0C

3C

  1. HRE: hexanucleotide repeat expansion; FALS: familial ALS; SALS: sporadic ALS; APresence of an age range indicates longitudinal samples were collected; BNumber of technical replicates during blood collection indicated in brackets; CMiddle sample matched to co-twin.