Table 1 Oxypurine kinetics of patients with type 1 xanthuria.

From: Pseudogenization of the Slc23a4 gene is necessary for the survival of Xdh-deficient mice

 

The urinary xanthine/creatinine ratio (mmol/mol Cr)

The urinary hypoxanthine/creatinine ratio (mmol/mol Cr)

The urinary hypoxanthine/xanthine ratio

Plasma xanthine (μmol/L)

Plasma hypoxanthine (μmol/L)

Ref

Ichida 1997

#1

110

89

0.809

23.6

5.9

21

#2

85.7

57.8

0.674

15.8

7.3

#3*

132

1.5

0.011

85

0.8

#4

108.2

38.9

0.360

38.5

1.6

Gok, 2003

III-3

64.2

28.4

0.442

21.0

10.6

28

III-1

227.2

28.5

0.125

14.2

14.2

Arikyants, 2007

S.B

259

54

0.208

18

13

20

S.B. sis

370

77

0.208

16

19

Jurecka, 2010

 

192

44

0.229

  

29

Stiburkova, 2012

P1

190

64

0.337

  

30

P2

170

89

0.524

  

Eggermann, 2013

 

193

65.0

0.337

  

31

Mraz, 2015

Case 1

164.5

74.4

0.452

14

31

32

Case 2

349.3

138.0

0.395

9

0

Case 3

328.2

61.8

0.188

14

15

Iguchi, 2016

 

207.4

58.2

0.281

25.8

7.0

33

Xu, 2020

 

270

186

0.689

  

34

Peretz, 2021

F2V2

106

40

0.377

  

35

Goncalves, 2024

*

94.18

4.418

0.047

  

17

Maes, 2024

 

135

16

0.119

  

36

Mean ± SEM

 

187.8 ± 20.1

60.8 ± 9.7

0.375 ± 0.046

24.6 ± 5.9

10.4 ± 2.6

 

Hprt(high)Xdh(− / −)Slc23a4(− / −) mice fed a normal diet

3761 ± 299

433.5 ± 86.4

0.115 ± 0.289

121.9 ± 10.4

35.0 ± 4.2

 

Hprt(high)Xdh(− / −)Slc23a4(− / −) mice fed a purified diet

1520 ± 260

61.5 ± 34.6

0.040 ± 0.116

65.4 ± 5.0

24.1 ± 4.0

 
  1. *Patients with type 1 xanthinuria with renal impairment.