Table 2 Clinical and molecular phenotypes from the patient derivation cohort.

From: Improved detection of mitochondrial DNA instability in mitochondrial genome maintenance disorders

#

Gender (M/F)

Clinical phenotype

Age (years)

Sample type

Number of deletions

Molecular variants

Deletion profile pattern (score)

P41

F

Spinal amyotrophy type III

3

Mu

2

ND

Control (0.183)

P42

M

Chronic fatigue syndrome

21

Mu

2

ND

Control (0.379)

P43

F

Chronic fatigue syndrome

31

Mu

2

ND

Control (0.258)

P44

M

EXIT/myalgia

35

Mu

16

ND

Undetermined (0.541)

P45

F

Myalgia/abdominal pain/decreased visual acuity

37

Mu

12

ND

Control (0.071)

P46

M

Myalgia

38

Mu

5

ND

Control (0.035)

P47

M

Diabetes

41

Mu

2

ND

Control (0.266)

P48

M

Chronic fatigue syndrome

42

Mu

2

ND

Control (0.072)

P49

F

Myalgia

54

Mu

8

ND

Control (0.036)

P50

F

Retinopathy/walking disorders

66

Mu

2

ND

Patient (0.702)

P51

F

Bilateral ptosis/diabetes

72

Mu

8

ND

Undetermined (0.508)

P52

M

Myopathy polyneuropathy

77

Mu

25

ND

Patient (1.000)

P53

M

Dysphagia/dysarthria/ptosis, diploplia/sensitive neuropathy

83

Mu

30

POLG: c.752C>T (p.Thr251Ile) and c.1760C>T (p.Pro587Leu)

Patient (0.997)

P54

M

Ophthalmoplegia, dysphagia

83

U

53

TWNK: c.1511C>T (p.Ala504Val)

Patient (1.000)

P55

M

Ophthalmoplegia, dysphagia

21

Mu, U

338/27

POLG: c.925C>T (p.Arg309Cys) and c.1789C>T (p.Arg597Trp)

Patient (0.998)

P56

M

Ophthalmoplegia, dysphagia

46

U

13

TWNK: c.1121G>A (p.Arg374Gln)

Patient (1.000)

P57

M

Ophthalmoplegia

53

Mu

16

TWNK: c.1001G>A (p.Arg334Gln)

Patient (0.997)

  1. Predicted results with the deletion profile patterns from the learning algorithm model are indicated, and classified as control (below 0.45) or patient (above 0.55). Between 0.45 and 0.55, patient samples are classified as undetermined.
  2. Mu muscle, ND not detected, U uroepithelial cells.