Table 1.
Gene | Variant | Age (years) | BMI (kg/m2) | BMI SDS | Endocrine | Neuro developmental | Gut | Other |
---|---|---|---|---|---|---|---|---|
NRP1; PLXNA3b | R237Qa; T1679I | 2.8 | 29.3 | 5.41 | ||||
NRP2 | V573L | 34.1 | 50.0 | - | ||||
NRP2 | A506V | 3.9 | 23.8 | 4.15 | autism, speech delay | |||
NRP2 | A506V | 11.3 | 24.1 | 2 | severe migraine | |||
PLXNA1 | L1278F | 6.3 | 28.7 | 4.53 | behavioral problems | |||
PLXNA1 | G1650S | 11.9 | 38.7 | 3.7 | ||||
PLXNA1 | R378H | 21.0 | 34.8 | 2.89 | hypotonia, autism, speech delay | |||
PLXNA2 | T515M | 14.0 | 35.9 | 3.32 | ||||
PLXNA2 | N788I | 6.3 | 26.0 | 3.65 | ||||
PLXNA2 | W25X | 11.0 | 34.2 | 3.48 | ||||
PLXNA2 | R1668Q | 33.2 | 63.4 | – | Asperger’s syndrome, speech delay | |||
PLXNA2 | A436V | 6.2 | 26.0 | 3.7 | ||||
PLXNA3 | V879M | 53.7 | 49.0 | – | hypothyroidism | severe constipation | ||
PLXNA3 | R1116C | 3.5 | 23.3 | 3.71 | ||||
PLXNA3 | D1710Na | 13.9 | 29.4 | 2.72 | hypogonadotropic hypogonadism | |||
PLXNA3; PLXNA3b | D127N; R351H | 6.9 | 26.8 | 3.59 | ||||
PLXNA4 | V245G | 15.3 | 58.6 | 4.63 | hypothyroidism | nocturnal enuresis | severe constipation | |
PLXNA4 | G643D | 5.5 | 27.2 | 4.19 | recurrent infections | |||
PLXNA4 | T1642I | 11.1 | 32.8 | 3.32 | ||||
PLXNA4 | R70Q | 9.5 | 26.6 | 3.03 | behavioral problems | |||
SEMA3A | K600M | 2.3 | 29.5 | 5.5 | hypothyroidism | |||
SEMA3A | R350T | 7.7 | 30.2 | 3.8 | hypothyroidism | |||
SEMA3B | F355L | 10.0 | 28.4 | 3.16 | ||||
SEMA3B | P296L | 13.2 | 33.4 | 3.14 | epilepsy, narcolepsy, conductive hearing loss, impaired pain sensation, behavioral problems, speech delay | recurrent infections | ||
SEMA3C | R739Q | 15.5 | 43.6 | 3.82 | hypothyroidism | Asperger’s syndrome | severe constipation | |
SEMA3D | R773G | 11.9 | 41.3 | 3.82 | nocturnal enuresis | |||
SEMA3D | R265H | 13.0 | 35.8 | 3.4 | ||||
SEMA3D | T397A | 8.9 | 36.1 | 4.02 | ||||
SEMA3D | Y199S | 14.4 | 37.4 | 3.44 | ||||
SEMA3D | N444S | 34.1 | 41.1 | – | ||||
SEMA3D | D380H | 16.0 | 56.4 | 4.56 | hypothyroidism | |||
SEMA3D | D640Y | 7.5 | 29.2 | 4.01 | autism, learning difficulties, speech delay | severe constipation | ||
SEMA3E | R167G | 14.1 | 40.5 | 3.72 | ||||
SEMA3E | K711N | 7.1 | 23.1 | 2.75 | ||||
SEMA3F | E88K | 2.8 | 34.8 | 6.4 | severe constipation | |||
SEMA3G | R561W | 3.7 | 21.3 | 2.98 | recurrent infections | |||
SEMA3G | R728C | 13.9 | 36.1 | 3.36 | ||||
SEMA3G | E478D | 15.5 | 43.8 | 3.9 | ||||
SEMA3G | A86S | 14.9 | 34.6 | 3.11 |
All variants were in found in the heterozygous form unless indicated; gastrointestinal motility disorders presented as severe therapy-resistant constipation. Abbreviations: BMI, body mass index; BMI SDS, BMI standard deviation score for children.
Homozygous
Two participants harbored two variants.