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Deletion of the V2 vasopressin receptor gene in two Chinese patients with nephrogenic diabetes insipidus.
BMC Genet. 2006 Nov 14; 7:53.BG

Abstract

BACKGROUND

Congenital nephrogenic diabetes insipidus (NDI) is a rare X-linked inherited disorder characterized by the excretion of large volumes of diluted urine and caused by mutations in arginine vasopressin receptor 2 (AVPR2) gene. To investigate the mutation of AVPR2 gene in a Chinese family with congenital NDI, we screened AVPR2 gene in two NDI patients and eight family members by PCR amplification and direct sequencing.

RESULTS

Five specific fragments, covering entire coding sequence and their flanking intronic sequences of AVPR2 gene, were not observed in both patients, while those fragments were all detected in the control subjects. Several different fragments around the AVPR2 locus were amplified step by step. It was revealed that a genomic fragment of 5,995-bp, which contained the entire AVPR2 gene and the last exon (exon 22) of the C1 gene, was deleted and a 3-bp (GAG) was inserted. Examination of the other family members showed that the mothers and the grandmother were carriers for this deletion.

CONCLUSION

Our findings suggest that the two patients in a Chinese family suffering from congenital NDI had a 5,995-bp deletion and 3-bp (GAG) insertion at Xq28. The deletion contained the entire AVPR2 gene and exon 22 of the C1 gene.

Authors+Show Affiliations

Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China. yandongnb@yahoo.com.cn <yandongnb@yahoo.com.cn>No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17101063

Citation

Dong, Yan, et al. "Deletion of the V2 Vasopressin Receptor Gene in Two Chinese Patients With Nephrogenic Diabetes Insipidus." BMC Genetics, vol. 7, 2006, p. 53.
Dong Y, Sheng H, Chen X, et al. Deletion of the V2 vasopressin receptor gene in two Chinese patients with nephrogenic diabetes insipidus. BMC Genet. 2006;7:53.
Dong, Y., Sheng, H., Chen, X., Yin, J., & Su, Q. (2006). Deletion of the V2 vasopressin receptor gene in two Chinese patients with nephrogenic diabetes insipidus. BMC Genetics, 7, 53.
Dong Y, et al. Deletion of the V2 Vasopressin Receptor Gene in Two Chinese Patients With Nephrogenic Diabetes Insipidus. BMC Genet. 2006 Nov 14;7:53. PubMed PMID: 17101063.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Deletion of the V2 vasopressin receptor gene in two Chinese patients with nephrogenic diabetes insipidus. AU - Dong,Yan, AU - Sheng,Haihui, AU - Chen,Xueru, AU - Yin,Jun, AU - Su,Qing, Y1 - 2006/11/14/ PY - 2006/06/30/received PY - 2006/11/14/accepted PY - 2006/11/15/pubmed PY - 2006/12/22/medline PY - 2006/11/15/entrez SP - 53 EP - 53 JF - BMC genetics JO - BMC Genet. VL - 7 N2 - BACKGROUND: Congenital nephrogenic diabetes insipidus (NDI) is a rare X-linked inherited disorder characterized by the excretion of large volumes of diluted urine and caused by mutations in arginine vasopressin receptor 2 (AVPR2) gene. To investigate the mutation of AVPR2 gene in a Chinese family with congenital NDI, we screened AVPR2 gene in two NDI patients and eight family members by PCR amplification and direct sequencing. RESULTS: Five specific fragments, covering entire coding sequence and their flanking intronic sequences of AVPR2 gene, were not observed in both patients, while those fragments were all detected in the control subjects. Several different fragments around the AVPR2 locus were amplified step by step. It was revealed that a genomic fragment of 5,995-bp, which contained the entire AVPR2 gene and the last exon (exon 22) of the C1 gene, was deleted and a 3-bp (GAG) was inserted. Examination of the other family members showed that the mothers and the grandmother were carriers for this deletion. CONCLUSION: Our findings suggest that the two patients in a Chinese family suffering from congenital NDI had a 5,995-bp deletion and 3-bp (GAG) insertion at Xq28. The deletion contained the entire AVPR2 gene and exon 22 of the C1 gene. SN - 1471-2156 UR - https://www.unboundmedicine.com/medline/citation/17101063/Deletion_of_the_V2_vasopressin_receptor_gene_in_two_Chinese_patients_with_nephrogenic_diabetes_insipidus_ L2 - https://bmcgenet.biomedcentral.com/articles/10.1186/1471-2156-7-53 DB - PRIME DP - Unbound Medicine ER -