@article {7769, title = {Phenotypic and genetic characterization of a family carrying two Xq21.1-21.3 interstitial deletions associated with syndromic hearing loss.}, journal = {Mol Cytogenet}, volume = {8}, year = {2015}, month = {2015}, pages = {18}, abstract = {

BACKGROUND: Sensorineural hearing impairment is a common pathological manifestation in patients affected by X-linked intellectual disability. A few cases of interstitial deletions at Xq21 with several different phenotypic characteristics have been described, but to date, a complete molecular characterization of the deletions harboring disease-causing genes is still missing. Thus, the aim of this study is to realize a detailed clinical and molecular analysis of a family affected by syndromic X-linked hearing loss with intellectual disability.

RESULTS: Clinical analyses revealed a very complex phenotype that included inner ear malformations, vestibular problems, choroideremia and hypotonia with a peculiar pattern of phenotypic variability. Genomic analysis revealed, for the first time, the presence of two close interstitial deletions in the Xq21.1-21.3, harboring 11 protein coding, 9 non-coding genes and 19 pseudogenes. Among these, 3 protein coding genes have already been associated with X-linked hearing loss, intellectual disability and choroideremia.

CONCLUSIONS: In this study we highlighted the presence of peculiar genotypic and phenotypic details in a family affected by syndromic X-linked hearing loss with intellectual disability. We identified two, previously unreported, Xq21.1-21.3 interstitial deletions. The two rearrangements, containing several genes, segregate with the clinical features, suggesting their role in the pathogenicity. However, not all the observed phenotypic features can be clearly associated with the known genes thus, further study is necessary to determine regions involved.

}, issn = {1755-8166}, doi = {10.1186/s13039-015-0120-0}, author = {Iossa, Sandra and Costa, Valerio and Corvino, Virginia and Auletta, Gennaro and Barruffo, Luigi and Cappellani, Stefania and Ceglia, Carlo and Cennamo, Giovanni and d{\textquoteright}Adamo, Adamo Pio and D{\textquoteright}Amico, Alessandra and Di Paolo, Nilde and Forte, Raimondo and Gasparini, Paolo and Laria, Carla and Lombardo, Barbara and Malesci, Rita and Vitale, Andrea and Marciano, Elio and Franz{\`e}, Annamaria} } @article {3593, title = {Parent-of-origin-specific allelic associations among 106 genomic loci for age at menarche.}, journal = {Nature}, volume = {514}, year = {2014}, month = {2014 Oct 2}, pages = {92-7}, abstract = {

Age at menarche is a marker of timing of puberty in females. It varies widely between individuals, is a heritable trait and is associated with risks for obesity, type 2 diabetes, cardiovascular disease, breast cancer and all-cause mortality. Studies of rare human disorders of puberty and animal models point to a complex hypothalamic-pituitary-hormonal regulation, but the mechanisms that determine pubertal timing and underlie its links to disease risk remain unclear. Here, using genome-wide and custom-genotyping arrays in up to 182,416 women of European descent from 57 studies, we found robust evidence (P < 5 {\texttimes} 10(-8)) for 123 signals at 106 genomic loci associated with age at menarche. Many loci were associated with other pubertal traits in both sexes, and there was substantial overlap with genes implicated in body mass index and various diseases, including rare disorders of puberty. Menarche signals were enriched in imprinted regions, with three loci (DLK1-WDR25, MKRN3-MAGEL2 and KCNK9) demonstrating parent-of-origin-specific associations concordant with known parental expression patterns. Pathway analyses implicated nuclear hormone receptors, particularly retinoic acid and γ-aminobutyric acid-B2 receptor signalling, among novel mechanisms that regulate pubertal timing in humans. Our findings suggest a genetic architecture involving at least hundreds of common variants in the coordinated timing of the pubertal transition.

}, keywords = {Adolescent, Age Factors, Alleles, Body Mass Index, Breast Neoplasms, Cardiovascular Diseases, Child, Diabetes Mellitus, Type 2, Europe, Female, Genetic Loci, Genome-Wide Association Study, Genomic Imprinting, Humans, Hypothalamo-Hypophyseal System, Intercellular Signaling Peptides and Proteins, Male, Membrane Proteins, Menarche, Obesity, Ovary, Parents, Polymorphism, Single Nucleotide, Potassium Channels, Tandem Pore Domain, Proteins, Quantitative Trait Loci, Receptors, GABA-B, Receptors, Retinoic Acid, Ribonucleoproteins}, issn = {1476-4687}, doi = {10.1038/nature13545}, author = {Perry, John R B and Day, Felix and Elks, Cathy E and Sulem, Patrick and Thompson, Deborah J and Ferreira, Teresa and He, Chunyan and Chasman, Daniel I and Esko, T{\~o}nu and Thorleifsson, Gudmar and Albrecht, Eva and Ang, Wei Q and Corre, Tanguy and Cousminer, Diana L and Feenstra, Bjarke and Franceschini, Nora and Ganna, Andrea and Johnson, Andrew D and Kjellqvist, Sanela and Lunetta, Kathryn L and McMahon, George and Nolte, Ilja M and Paternoster, Lavinia and Porcu, Eleonora and Smith, Albert V and Stolk, Lisette and Teumer, Alexander and T{\v s}ernikova, Natalia and Tikkanen, Emmi and Ulivi, Sheila and Wagner, Erin K and Amin, Najaf and Bierut, Laura J and Byrne, Enda M and Hottenga, Jouke-Jan and Koller, Daniel L and Mangino, Massimo and Pers, Tune H and Yerges-Armstrong, Laura M and Hua Zhao, Jing and Andrulis, Irene L and Anton-Culver, Hoda and Atsma, Femke and Bandinelli, Stefania and Beckmann, Matthias W and Benitez, Javier and Blomqvist, Carl and Bojesen, Stig E and Bolla, Manjeet K and Bonanni, Bernardo and Brauch, Hiltrud and Brenner, Hermann and Buring, Julie E and Chang-Claude, Jenny and Chanock, Stephen and Chen, Jinhui and Chenevix-Trench, Georgia and Coll{\'e}e, J Margriet and Couch, Fergus J and Couper, David and Coviello, Andrea D and Cox, Angela and Czene, Kamila and d{\textquoteright}Adamo, Adamo Pio and Davey Smith, George and De Vivo, Immaculata and Demerath, Ellen W and Dennis, Joe and Devilee, Peter and Dieffenbach, Aida K and Dunning, Alison M and Eiriksdottir, Gudny and Eriksson, Johan G and Fasching, Peter A and Ferrucci, Luigi and Flesch-Janys, Dieter and Flyger, Henrik and Foroud, Tatiana and Franke, Lude and Garcia, Melissa E and Garc{\'\i}a-Closas, Montserrat and Geller, Frank and de Geus, Eco E J and Giles, Graham G and Gudbjartsson, Daniel F and Gudnason, Vilmundur and Guenel, Pascal and Guo, Suiqun and Hall, Per and Hamann, Ute and Haring, Robin and Hartman, Catharina A and Heath, Andrew C and Hofman, Albert and Hooning, Maartje J and Hopper, John L and Hu, Frank B and Hunter, David J and Karasik, David and Kiel, Douglas P and Knight, Julia A and Kosma, Veli-Matti and Kutalik, Zolt{\'a}n and Lai, Sandra and Lambrechts, Diether and Lindblom, Annika and M{\"a}gi, Reedik and Magnusson, Patrik K and Mannermaa, Arto and Martin, Nicholas G and Masson, Gisli and McArdle, Patrick F and McArdle, Wendy L and Melbye, Mads and Michailidou, Kyriaki and Mihailov, Evelin and Milani, Lili and Milne, Roger L and Nevanlinna, Heli and Neven, Patrick and Nohr, Ellen A and Oldehinkel, Albertine J and Oostra, Ben A and Palotie, Aarno and Peacock, Munro and Pedersen, Nancy L and Peterlongo, Paolo and Peto, Julian and Pharoah, Paul D P and Postma, Dirkje S and Pouta, Anneli and Pylk{\"a}s, Katri and Radice, Paolo and Ring, Susan and Rivadeneira, Fernando and Robino, Antonietta and Rose, Lynda M and Rudolph, Anja and Salomaa, Veikko and Sanna, Serena and Schlessinger, David and Schmidt, Marjanka K and Southey, Mellissa C and Sovio, Ulla and Stampfer, Meir J and St{\"o}ckl, Doris and Storniolo, Anna M and Timpson, Nicholas J and Tyrer, Jonathan and Visser, Jenny A and Vollenweider, Peter and V{\"o}lzke, Henry and Waeber, Gerard and Waldenberger, Melanie and Wallaschofski, Henri and Wang, Qin and Willemsen, Gonneke and Winqvist, Robert and Wolffenbuttel, Bruce H R and Wright, Margaret J and Boomsma, Dorret I and Econs, Michael J and Khaw, Kay-Tee and Loos, Ruth J F and McCarthy, Mark I and Montgomery, Grant W and Rice, John P and Streeten, Elizabeth A and Thorsteinsdottir, Unnur and van Duijn, Cornelia M and Alizadeh, Behrooz Z and Bergmann, Sven and Boerwinkle, Eric and Boyd, Heather A and Crisponi, Laura and Gasparini, Paolo and Gieger, Christian and Harris, Tamara B and Ingelsson, Erik and J{\"a}rvelin, Marjo-Riitta and Kraft, Peter and Lawlor, Debbie and Metspalu, Andres and Pennell, Craig E and Ridker, Paul M and Snieder, Harold and S{\o}rensen, Thorkild I A and Spector, Tim D and Strachan, David P and Uitterlinden, Andr{\'e} G and Wareham, Nicholas J and Widen, Elisabeth and Zygmunt, Marek and Murray, Anna and Easton, Douglas F and Stefansson, Kari and Murabito, Joanne M and Ong, Ken K} }