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Table 2 Clinical features of all reported patients with HARS2 variants

From: Two novel likely pathogenic variants of HARS2 identified in a Chinese family with sensorineural hearing loss

Patient

Origin/

Descent

HARS2 Variants

Sex

Age of Onset

Age at Exam

Degree of hearing loss

Hearing

habilitation

Gonadal dysfunction

Age at POI

Neurological features

Additional features

Reference

M1

M2

Family 1

II-1

European

c.598C > G p.Leu200Val

c.1102G > T

p.Val368Leu

F

34

NR

Mild

NR

ovarian dysgenesis, with amenorrhea and streak gonads

NR

NO

NO

Pierce et.al [1]

II-2

M

6

22

Moderate to severe

NR

NA

NA

NO

NO

II-4

M

18

NR

Moderate to severe

NR

NA

NA

NO

NO

II-7

F

12

19

Mild to moderate

NR

ovarian dysgenesis, with amenorrhea and streak gonads

NR

NO

NO

II-8

F

8

13

Moderate to profound

NR

ovarian dysgenesis, with amenorrhea and streak gonads

NR

NO

NO

Family 2

IV-1

Morocco

c.1010A > G p.Tyr337Cys

(Hom)

F

< 3

NR

Profound

NR

Secondary Amenorrhea

25

NO

Hypothyroidism

Lerat et.al [4]

VI-1

F

< 3

NR

Profound

NR

Secondary Amenorrhea

26

NO

Hypothyroidism

Family 3

proband

Chinese Han

c.647G > A

p.Arg216Gln

c.697C > T

p.Arg233Cys

M

NR

NR

NR

NA

NA

NO

NO

NO

Zou et.al [10]

Family 4

Proband

European

c.137 T > A p.Leu46Gln

c.259C > T

p.Arg87Cys

F

2.5

32

Moderate

Bilateral CI

Secondary amenorrhea, cessation

24

NO

NO

Karstensen et.al [12]

Family 5

II-1

European

c.172A > G p.Lys58Glu

c.448C > T

p.Arg150Cys

M

5

18

Moderate to severe

Bilateral CI

NA

NA

NO

NO

Karstensen et.al [12]

II-2

F

2.6

16

Moderate to severe

Bilateral CI

irregular menses

16

NO

NO

II-3

F

0.3

13

Moderate to severe

Bilateral CI

asymptomatic

13

NO

NO

Family 6

Proband

European

c.448C > T

p.Arg150Cys

c.980G > A

p.Arg327Gln

F

2

7

Moderate to severe

Bilateral CI

asymptomatic

7

NO

NO

Karstensen et.al [12]

Family 7

Proband

European

c.413G > A p.Arg138His

c.1439G > A p.Arg480His

F

6

6

Moderate

HA

asymptomatic

NR

NO

NO

Demain et.al [11]

Family 8

II-1

North American

c.828delTinsGTATCCCTAGTATTTCTACTA

p.Gly277TyrfsTer3

c.1439G > A

p.Arg480His

M

2.5

14

Severe to profound

CI + HA

NA

NA

Difficulty with fine motor movements

Problems with tooth growth

Demain et.al [11]

II-2

M

1

11

Severe to profound

CI + HA

NA

NA

Tightness in the muscles of his lower limbs

Problems with tooth growth

Family 9

Proband

North American

c.72C > A

p.Cys24Stop

c.1439G > A

p.Arg480His

M

1.5

4

Profound

Not recorded

NA

NA

NO

NO

Demain et.al [11]

Family 10

II-1

Chinese Han

c.349G > A p.Asp117Asn

c.908 T > C p.Leu303Pro

M

2.5

7

Profound

HA + Right CI

NA

NA

NO

NO

This study

II-2

M

1

10

Severe to profound

HA + CI

NA

NA

NO

NO

  1. HA Hearing aid, CI Cochlear implant, POI Primary ovarian insufficiency, F Female, M Male, NA Not applicable, NR Not recorded