Clinical and inheritance profiles of Kallmann syndrome in Jordan

被引:6
作者
AbuJbara M.A. [1 ]
Hamamy H.A. [1 ]
Jarrah N.S. [1 ]
Shegem N.S. [1 ]
Ajlouni K.M. [1 ]
机构
[1] Natl. Ctr. Diabet., Endocrinol. G., Amman
关键词
Kallmann syndrome; Hypogonadotropic hypogonadism; Microphallus; Jordan;
D O I
10.1186/1742-4755-1-5
中图分类号
学科分类号
摘要
Background: Proper management of patients with Kallmann syndrome (KS) allows them to attain a normal reproductive health. The purpose of this study is to demonstrate the presentation modalities, phenotypes and the modes of inheritance among 32 patients with Kallmann syndrome in Jordan. Recognition of the syndrome allows for prompt proper management and provision of genetic counselling. Subjects: Over a period of five years (1999-2004), the clinical and inheritance profiles of 26 male and 6 female patients with Kallmann syndrome from 12 families were evaluated at the National Center for Diabetes, Endocrinology and Genetics in Jordan. Results: The patients belonged to twelve Jordanian and Palestinian families and their age at presentation ranged from 4 - 46 years. Nine boys aged 4-14 years presented with cryptorchidism and microphallus, all other males presented with delayed puberty, hypogonadism and/or infertility. The main presentation among six female patients was primary amenorrhea. Intrafamilial variability in clinical phenotype was specifically evident for renal abnormalities and sensorineural hearing impairment. Familial KS was diagnosed in 27 patients belonging to five families with the X-linked mode of inheritance and two families with the autosomal recessive mode of inheritance. Conclusions: (1) the majority of cases in this study represented the X-linked form of KS, which might point to a high prevalence of Kal 1 gene in the population. (2) Genetic counselling helps these families to reach a diagnosis at an early age and to decide about their reproductive options. (3) Children presenting with cryptorchidism and microphallus in our population should be investigated for KS. © 2004 AbuJbara et al; licensee BioMed Central Ltd.
引用
收藏
相关论文
共 23 条
[1]  
Hay C., Wu F., Genetics and hypogonadotrophic hypogonadism, Current Opinion in Obstetrics and Gynecology, 14, pp. 303-308, (2002)
[2]  
Hu Y., Tanriverdi F., MacColl G.S., Bouloux P.M., Kallmann syndrome: Molecular pathogenesis, Int J Biochem Cell Biol (England), 35, pp. 1157-1162, (2003)
[3]  
Dode C., Hardelin J., Kallmann syndrome: Fibroblast growth factor signaling insufficiency?, Journal of Molecular Medicine, (2004)
[4]  
Filippi G., Klinefelter's syndrome in Sardinia. Clinical report of 265 hypogonadotropic males detected at the time of military check-up, Clin Genet, 30, pp. 276-284, (1986)
[5]  
Oliveira L.M., Seminara S.B., Beranova M., Hayes F.J., Valkenburgh S.B., Schipani E., Costa E.M., Latronico A.C., Crowley Jr. W.F., Vallejo M., The importance of autosomal genes in Kallmann syndrome: Genotype-phenotype correlations and neuroendocrine characteristics, J Clin Endocrinol Metab, 86, pp. 1532-1538, (2001)
[6]  
Soderlund D., Canto P., Mendez J.P., Identification of three novel mutations in the KAL1 gene in patients with Kallmann syndrome, J Clin Endocrinol Metab, 87, pp. 2589-2592, (2002)
[7]  
Legouis R., Hardelin J.P., Levilliers J., Claverie J.M., Compain S., Wunderle V., Millasseau P., Le Paslier D., Cohen D., Caterina D., The candidate gene for the X-linked Kallmann syndrome encodes a protein related to adhesion molecules, Cell, 67, pp. 423-433, (1991)
[8]  
Franco B., Guioli S., Pragliola A., Incerti B., Bardoni B., Tonlorenzi R., Carrozzo R., Maestrini E., Pieretti M., Taillon-Miller, A gene deleted in Kallmann's syndrome shares homology with neural cell adhesion and axonal path-finding molecules, Nature, 353, pp. 529-536, (1991)
[9]  
Massin N., Pecheux C., Eloit C., Bensimon J.L., Galey J., Kuttenn F., Hardelin J.P., Dode C., Touraine P., X chromosome-linked Kallmann syndrome: Clinical heterogeneity in three siblings carrying an intragenic deletion of the KAL-1 gene, J Clin Endocrinol Metab, 88, pp. 2003-2008, (2003)
[10]  
MacColl G., Quinton R., Bouloux P.M., GnRH neuronal development: Insights into hypogonadotrophic hypogonadism, Trends Endocrinol Metab, 13, pp. 112-118, (2002)