7,9-Bis(hy­droxy­meth­yl)-7H-purine-2,6,8(1H,3H,9H)trione
2011

Structure of a Uric Acid Derivative from Kidney Stones

Sample size: 10 publication 10 minutes Evidence: moderate

Author Information

Author(s): Daudon M., Bazin D., Adil K., Bail A. Le

Primary Institution: Laboratoire de Biochimie A, AP-HP, Hopital Necker, France

Hypothesis

The study investigates the structure of a uric acid derivative found in human kidney stones.

Conclusion

The structure of the uric acid derivative is characterized by disordered hydroxymethyl groups and a three-dimensional hydrogen-bonding scheme.

Supporting Evidence

  • The study identified a hydroxymethyl group attached to N9 in the uric acid derivative.
  • Disorder was observed in the arrangement of hydroxymethyl groups over three different sites.
  • The crystal structure was determined using X-ray diffraction techniques.

Takeaway

Scientists looked at a special type of uric acid found in kidney stones and found that it has some parts that are mixed up in how they are arranged.

Methodology

X-ray diffraction experiments were performed on samples from human kidney stones to determine the structure.

Potential Biases

Potential bias may arise from the selection of samples from patients with varying treatments.

Limitations

The study's findings may be limited by the small sample size and the natural variability in kidney stone composition.

Participant Demographics

Samples were taken from about ten patients with kidney stones, some of whom had received different treatments.

Digital Object Identifier (DOI)

10.1107/S1600536811018186

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