title: Genetic screening for LRRK2 gene G2019S mutation in Parkinson's disease patients from Southern Italy.
abstract: Leuchine-rich repeat kinase 2 (LRRK2) gene mutations are a common cause of familial and sporadic Parkinson disease (PD). G2019S is the most frequent mutation of the LRRK2 gene and has been reported in about 5-6% of familial and 1-2% of sporadic PD cases. The aim of this study is to investigate the G2019S frequency in a series of 58 familial and 70 sporadic PD patients recruited from Campania, a region in Southern Italy. We identified one heterozygous G2019S mutation in a PD patient who also suffered from obsessive disorder and depression and presented hallucinations and delusional jealousy while he was treated with l-dopa, pramipexole, and amantadine. Brain (18)F-deoxy-glucose PET showed relative decrease of glucose metabolism in the caudate nuclei and to a lesser extent in cortical parietal/frontal regions. The patient's mother also had PD and molecular analysis demonstrated that she carried the same mutation. G2019S mutation frequency is rather low in overall patients (0.8%) and in the familial group (1.7%), suggesting that it may be an uncommon cause of PD in Southern Italy.
authors.affiliation: Department of Neurological Sciences, Federico II University, Via Pansini 5, 80131 Naples, Italy. demichel@unina.it
authors.forename: Anna
authors.initials: A
authors.lastname: De Rosa
authors.forename: Chiara
authors.initials: C
authors.lastname: Criscuolo
authors.forename: Pietro
authors.initials: P
authors.lastname: Mancini
authors.forename: Marina
authors.initials: M
authors.lastname: De Martino
authors.forename: Ilaria Anna
authors.initials: IA
authors.lastname: Giordano
authors.forename: Sabina
authors.initials: S
authors.lastname: Pappatà
authors.forename: Alessandro
authors.initials: A
authors.lastname: Filla
authors.forename: Giuseppe
authors.initials: G
authors.lastname: De Michele
mesh_terms: D000328:Adult; D017668:Age of Onset; D000368:Aged; D004252:DNA Mutational Analysis / Q000379:methods; D005260:Female; D019788:Fluorodeoxyglucose F18; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005820:Genetic Testing / Q000379:methods*; D005838:Genotype; D005998:Glycine / Q000235:genetics*; D006801:Humans; D007558:Italy; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000000981:diagnostic imaging / Q000235:genetics*; D049268:Positron-Emission Tomography / Q000379:methods; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*; D012694:Serine / Q000235:genetics*; D055815:Young Adult
chemical_list: D019788:Fluorodeoxyglucose F18; D012694:Serine; C495280:LRRK2 protein, human; D000071158:Leucine-Rich Repeat Serine-Threonine Protein Kinase-2; D017346:Protein Serine-Threonine Kinases; D005998:Glycine