Table 1.
Genetic details |
Clinical details |
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nucleotide | Protein | Sex | At presentation |
At last follow-up |
Meds | Remarks (complications/ comorbidities) | |||||||||
Age (years) | Plasma osmolality (mOsm/kg) | eGFR (mL/min/ 1.73 m2) | Uosm after DDAVP (mOsm/kg) | Weight SDS | Height SDS | Age (years) | Weight SDS | Height SDS | eGFR (mL/min/ 1.73 m2) | ||||||
Patients with mutations in AVPR2 | |||||||||||||||
1 | c.851G>A | p.(Trp284*) | M | 0.25 | 304 | 43 | 65 | −2.62 | −1.25 | 11.9 | −0.02 | −1.68 | 90 | Indomethacin, thiazide | Feeding difficulty, esophagitis |
2.1 | c.999dup | p.(Ser334Leufs*23) | M | 0.016 | 300 | 44 | 73 | −0.44 | 0.51 | 15.3 | −1.03 | −1.16 | 76 | Indomethacin, thiazide | Transient hydronephrosis, large bladder, PVR, constipation |
2.2 | c.999dup | p.(Ser334Leufs*23) | M | 0.021 | 310 | 34 | 53 | 0.84 | 0.89 | 16.7 | −0.34 | −0.53 | 75 | Indomethacin, thiazide | Hydronephrosis, constipation |
2.3 | c.999dup | p.(Ser334Leufs*23) | M | 0.08 | 310 | 45 | 50 | 0.73 | −1.06 | 17 | 0.08 | −1.13 | 77 | Indomethacin, thiazide | ADHD, impaired concentration, mild hydronephrosis |
2.4 | c.999dup | p.(Ser334Leufs*23) | M | 0.16 | 307 | 38 | 89 | −0.87 | −0.54 | 17 | −0.01 | −0.86 | 65 | Indomethacin, thiazide | Mild hydronephrosis, migraine |
3 | c.871C>T | p.(Glu291*) | M | 0.83 | 304 | 54 | 111 | 0.91 | −0.76 | 16.3 | 0.29 | −0.89 | 79 | Indomethacin, thiazide | |
4 | c.27_54del | p.(Val10Cysfs*18) | M | 0.3 | 301 | 43 | 129 | −3.01 | −0.86 | 14.1 | 1.49 | 0.92 | 76 | Indomethacin, thiazide | Transient hydronephrosis, growth hormone deficiency, impaired concentration |
5 | c.299del | p.(Lys100Argfs*16) | M | 0.58 | 325 | 44 | 40 | 2.61 | −2.02 | 11.8 | 0.74 | −0.7 | 72 | Indomethacin, thiazide | Constipation |
6 | c.332T>C | p.(Leu211Pro) | M | 0.66 | 354 | 34 | 197 | −4.08 | −3.19 | 14.2 | 1.11 | −2.4 | 106 | Indomethacin, thiazide | Constipation |
7.1 | c.262G>A | p.(Val88Met) | M | 2 | 294 | 83 | 570 | −2.8 | −2.87 | 1 | −0.51 | −0.37 | 81 | Indomethacin, thiazide | Hydronephrosis, large bladder, PVR, constipation |
7.2 | c.262G>A | p.(Val88Met) | M | 0.04 | 292 | 26 | 63 | −1.88 | −1.59 | 10 | −0.27 | 0.01 | 92 | Indomethacin, thiazide | ADHD, impaired concentration/school performance |
8 | c.316C>T | p.(Arg106Cys) | M | 2.9 | 294 | 140 | 173 | −1.78 | −1.56 | 17 | 0.31 | 0.97 | 85 | Indomethacin, thiazide | |
9 | c.809_810del | p.(Val270Glyfs*86) | M | 0.5 | 319 | 69 | 173 | −3.38 | −2.25 | 10 | 0.19 | 0.66 | 95 | Indomethacin, thiazide | Mild hydronephrosis, constipation |
10.1 | c.316C>T | p.(Arg106Cys) | M | 7 | 298 | 63 | 50 | 0.9 | 0.45 | 15 | 0.37 | 0.27 | 70 | Indomethacin, thiazide | Hydronephrosis, large bladder, PVR, PUV with left VUR |
10.2 | c.316C>T | p.(Arg106Cys) | M | 9 | N/A | 89 | 220 | 1.39 | 0.62 | 14 | 0.82 | −0.78 | 80 | Indomethacin, thiazides | Hydronephrosis, constipation |
11.1 | c. (-1069_1007) del ins168 | p.? | M | 0.15 | 320 | 54 | 114 | −0.96 | −1.17 | 9 | 1.57 | −0.38 | 66 | Indomethacin, thiazide | |
11.2 | c.(-1069_1007) del ins168 | p.? | M | 0.5 | 328 | 41 | 179 | −2.66 | −0.33 | 5 | 0.92 | −0.68 | 67 | Indomethacin, amiloride, thiazide | ADHD, impaired concentration |
12 | c.del970 | p.(Ile324Serfs*112) | M | 8 | 298 | 69 | 55 | 2.6 | 1.59 | 17 | 0.92 | −1.42 | 56 | Thiazide | Hydronephrosis, single kidney, large bladder + PVR |
13 | c.491G>A | p.(W146X) | M | 1.83 | 277 | 103 | 44 | −2.55 | −2.13 | 15 | 0.7 | 0.23 | 86 | Indomethacin, thiazide | Large bladder, PVR, ADHD, dyslexia mild hydronephrosis |
14 | c.357G>C | p.(Glu119His) | M | 0.16 | 359 | 45 | 50 | −2.25 | −1 | 4 | −0.98 | −1.54 | 91 | Indomethacin, thiazides | |
15 | c.599G>A | p.(Trp200*) | M | 1.66 | 290 | 102 | 147 | −1.98 | −1.02 | 3 | 1.64 | 1.3 | 114 | Indomethacin, thiazide, amiloride | Transient neurological impairment associated with acute hypernatraemia |
16 | c.604C>T | p.(Arg202Cys) | M | 0.58 | 287 | 111 | 76 | −2.83 | −0.33 | 2.2 | −1.65 | −3.5 | 90 | Amiloride, thiazide | |
17 | c.(?-1) _(*1_?) del | p.? | M | 0.03 | 337 | 49 | 185 | 0.34 | 0.89 | 0.83 | −1.06 | −0.76 | 89 | Celecoxib, thiazide | |
18 | c.348C>G | p.(Lys116Asn) | M | 0.91 | 298 | 73 | 95 | −4.47 | −4.02 | 3.6 | −1.89 | −4.15 | 81 | Indomethacin, thiazide, amiloride | IUGR, necrotizing enterocolitis |
19 | c.830T>C | p.(Val277Ala) | M | 8 | 338 | 41 | 73 | 2.2 | 1.9 | 16 | 2.3 | 2.1 | 83 | Indomethacin, thiazide | |
20 | c.332T>C | p.(Leu111Pro) | M | 0.01 | 293 | 95 | 65 | −2.42 | −1.06 | 6.1 | 1.43 | 0.34 | 66 | Celecoxib, thiazide, amiloride | Rhomboencephalo-synapsis |
Patients with mutations in AQP2 | |||||||||||||||
21 | c.377C>T | p.(Thr126Met) | M | 0.58 | 354 | 62 | 95 | −2.8 | −2.97 | 13 | 0.23 | −0.9 | 60 | Indomethacin, thiazide | Global developmental delay |
22 | c.253C>T | p.(Arg85*) | M | 3.6 | 304 | 85 | 177 | 1.49 | −1.86 | 17 | 3.06 | −1.39 | 81 | Ibuprofen, thiazide | Left hydronephrosis with 10% divided function, large bladder, PVR |
23.1 | c.337C>T | p.(Arg113Cys) | F | 0.33 | 340 | 45 | 158 | −2.83 | −2.23 | 7.9 | −2.58 | −2.85 | 67 | Indomethacin, thiazide | Constipation |
23.2 | c.337C>T | p.(Arg113Cys) | F | 0 | 280 | 52 | 114 | −2.55 | −1.33 | 3 | −2.75 | −1.72 | 97 | Indomethacin, thiazide | Constipation |
24 | c.211G>A | p.(Val71Met) | F | 0.25 | 350 | 69 | 158 | −2.1 | −0.59 | 16 | 1.54 | −1.67 | 72 | Indomethacin, thiazide | Hydronephrosis |
25 | c.299G>T/ c.763C>T | p.(Gly100Val)/ p.(Gln255*) | M | 6.5 | 284 | 50 | 86 | −4.65 | −2.02 | 10.5 | −1.51 | −3.02 | 84 | Celecoxib | |
26 | c.211G>A | p.(Val71Met) | M | 1.75 | 295 | 107 | 100 | −8.25 | −4.94 | 5 | −1.92 | −1.32 | 129 | Indomethacin, thiazide | Mild hydronephrosis, constipation |
Shown are pertinent molecular and clinical details. Mutations in AQP2 are all homozygous, except for Patient 25, who is compound heterozygous.
‘?’ is standard genetic annotation for Unknown.
Uosm, urine osmolality; PUV, posterior urethral valves; VUR, vesico-ureteric reflux; IUGR, intra-uterine growth retardation.