Inherited disorders of purine and pyrimidine metabolism in
man lead to severe diseases. At the 2nd M}nchner
Adventssymposium the state of the art as to the genetic
basis, clinical aspects, and the biochemical basis has been
given by leading experts in the fields concerning the
following diseases: Hypoxanthine phosphoribosyltransferase
deficiency (HGPRT-deficieny), adenine
phosphoribosyltransferase deficiency (APRT-deficiency),
hyperuricemia and gout, adenosine deaminase deficiency
(ADA-deficiency, purine nucleoside phosphorylase deficiency
(PNP-deficiency). All contributions of the symposium are
published within this volume thus giving and overview of
this most interesting field.

I Purine Salvage Enzymes

IA Hypoxanthine Guanine Phosphoribosyltransferase (HGPRT) Deficiency 3
1 Introductory Remarks
2 The Clinical Aspects of HGPRT Deficiency
3 The Biochemical Basis of HGPRT Deficiency
4 Prenatal Diagnosis of Lesch-Nyhan Syndrome
5 The Genetic Basis of HGPRT Deficiency
IB Adenine Phosphoribosyltransferase (APRT) Deficiency 41
1 The Clinical Aspects of APRT Deficiency
2 The Biochemical Basis of APRT Deficiency
3 The Genetic Basis of APRT Deficiency
II Hyperuricemia and Gout Caused by a Defect in Renal Transport
1 The Clinical Aspects of Hyperuricemia and Gout
2 The Biochemical Basis of Hyperuricemia and Gout
3 The Genetic Basis of Hyperuricemia and Gout
III Immunodeficiency Disease: Adenosine Deaminase (ADA) and Purine-Nucleoside Phosphorylase (PNP) Deficiencies
1 Introductory Remarks
2 The Clinical Aspects of ADA and PNP Deficiencies
3 The Biochemical Basis and Pathophysiology of ADA and PNP Deficiencies
4 The Genetic and Metabolic Basis of ADA Deficiency
IV The Purine Nucleotide Cycle
IVA Myoadenylate (Muscle AMP) Deaminase Deficiency 115
1 Clinical Aspects and Biochemical Basis of AMP Deaminase Deficiency: A Clinician's Point of View
2 The AMP Deaminase Multigene Family in Rats and Humans
3 The Genetic Basis of Myoadenylate Deaminase Deficiency in Man
IVB Adenylosuccinate Lyase (ASase) Deficiency 140
1 The Clinical Aspects of ASase Deficiency
2 The Biochemical Aspects of ASase Deficiency
3 The Genetic Basis of ASase Deficiency
V Pyrimidine Metabolism
1 Dihydropyrimidinuria Presenting in Childhood with Severe Developmental Retardation
2 The Clinical Aspects of Inherited Defects in Pyrimidine Degradation
3 Dihydropyrimidine Dehydrogenase Deficiency: Biochemical and Genetic Basis.