Investigation of the Genetic Causes of Kallmann Syndrome and Reproductive Disorders
Study Details
Study Description
Brief Summary
The aims of this study are: 1) to identify genes that play a role in human pubertal development and reproduction, 2) to characterize the phenotypic spectrum of patients with these gene defects, and 3) to discern the mode of inheritance for disorders caused by these gene defects. We are specifically interested in genes that cause Kallmann syndrome, idiopathic hypogonadotropic hypogonadism (IHH), precocious (early) puberty, and delayed puberty. Individuals do not have to travel to Boston to participate in this study.
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Detailed Description
Overview:
Our work is divided into two main areas of investigation:
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the discovery of new, yet-undiscovered genes for conditions of early (i.e. precocious) puberty, delayed puberty, and/or absence of pubertal development (i.e. Kallmann syndrome/hypogonadotropic hypogonadism). Identification of new genes requires either a single large family or a collection of smaller families.
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a detailed examination of the genes already implicated in causing these conditions.
There are several other important aspects about our program:
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This analysis will detect DNA abnormalities only in those DNA segments being screened. The turnaround time to process a sample is approximately 12-24 months. We must receive a signed consent form in order to begin analysis on a blood sample.
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Our laboratory is located in Massachusetts General Hospital, Boston MA and is largely funded by the National Institutes of Health. We are a research laboratory and not a CLIA certified clinical laboratory.
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Even if a participant is the only member of his/her family affected by one of the conditions mentioned above, obtaining blood samples on other family members, including parents and siblings is often important to our work.
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It is every individual's responsibility to notify the research team he/she would like to obtain research results. Research results will be relayed to the participant's healthcare provider and must be confirmed in a clinical laboratory before being relayed to the participant or used for medical care.
Study Procedures and Risks
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You will be asked to give approximately 3-5 tablespoons of blood for this research project. There is a risk of bruising and a very small amount of bleeding associated with blood drawing.
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You will be asked to fill out a medical history checklist, indicating the presence or absence of clinical features that may be associated with abnormalities in pubertal development.
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Since absence of puberty is sometimes associated with limited or no smell ability, you may be asked to try to identify the odors in a scratch and sniff test. This will take about 15 minutes.
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Your family history can give us clues to determine how your condition was inherited. Therefore, a detailed family history, at least back to your grandparents will be obtained by a researcher.
Benefits:
There are no direct benefits to you from participation in this study. Some genes for this condition are known, other genes have yet to be discovered. If this study discovers what genes are responsible, it will help to further the understanding of this disorder. It is possible that the genetic cause of your reproductive disorder may be learned. This information can be shared with you at your request, as explained above.
When contacting us, please include in your message a description of your diagnosis, your pubertal history (age when you hit pubertal hallmarks, e.g., growth spurt; body hair; voice deepening and genital growth for men; menstruation and breast development for women) and your reproductive history.
Study Design
Outcome Measures
Primary Outcome Measures
- Identification of DNA abnormalities [5/2015]
Eligibility Criteria
Criteria
Inclusion Criteria:
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Failure to go through a normal, age-appropriate, spontaneous puberty, and abnormal hormone levels OR
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Children with abnormally early development of puberty (Precocious Puberty) OR
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Family members of these patients.
Exclusion Criteria:
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pituitary tumor
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high prolactin levels
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Massachusetts General Hospital | Boston | Massachusetts | United States | 02114 |
Sponsors and Collaborators
- Massachusetts General Hospital
Investigators
- Principal Investigator: Stephanie B Seminara, MD, Massachusetts General Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
- Au MG, Crowley WF Jr, Buck CL. Genetic counseling for isolated GnRH deficiency. Mol Cell Endocrinol. 2011 Oct 22;346(1-2):102-9. doi: 10.1016/j.mce.2011.05.041. Epub 2011 Jun 1. Review.
- Balasubramanian R, Plummer L, Sidis Y, Pitteloud N, Martin C, Zhou QY, Crowley WF Jr. The puzzles of the prokineticin 2 pathway in human reproduction. Mol Cell Endocrinol. 2011 Oct 22;346(1-2):44-50. doi: 10.1016/j.mce.2011.05.040. Epub 2011 Jun 1. Review.
- Burris TP, Guo W, McCabe ER. The gene responsible for adrenal hypoplasia congenita, DAX-1, encodes a nuclear hormone receptor that defines a new class within the superfamily. Recent Prog Horm Res. 1996;51:241-59; discussion 259-60. Review.
- Crowley WF Jr, Pitteloud N, Seminara S. New genes controlling human reproduction and how you find them. Trans Am Clin Climatol Assoc. 2008;119:29-37; discussion 37-8. Review.
- de Roux N, Young J, Misrahi M, Genet R, Chanson P, Schaison G, Milgrom E. A family with hypogonadotropic hypogonadism and mutations in the gonadotropin-releasing hormone receptor. N Engl J Med. 1997 Nov 27;337(22):1597-602.
- Franco B, Guioli S, Pragliola A, Incerti B, Bardoni B, Tonlorenzi R, Carrozzo R, Maestrini E, Pieretti M, Taillon-Miller P, Brown CJ, Willard HF, Lawrence C, Graziella Persico M, Camerino G, Ballabio A. A gene deleted in Kallmann's syndrome shares homology with neural cell adhesion and axonal path-finding molecules. Nature. 1991 Oct 10;353(6344):529-36.
- Kallmann FJ, Schoenfeld WA. The genetic aspects of primary eunuchoidism. American Journal of Mental Deficiency 158:203-236, 1944.
- Layman LC, Cohen DP, Jin M, Xie J, Li Z, Reindollar RH, Bolbolan S, Bick DP, Sherins RR, Duck LW, Musgrove LC, Sellers JC, Neill JD. Mutations in gonadotropin-releasing hormone receptor gene cause hypogonadotropic hypogonadism. Nat Genet. 1998 Jan;18(1):14-5.
- Legouis R, Hardelin JP, Levilliers J, Claverie JM, Compain S, Wunderle V, Millasseau P, Le Paslier D, Cohen D, Caterina D, et al. The candidate gene for the X-linked Kallmann syndrome encodes a protein related to adhesion molecules. Cell. 1991 Oct 18;67(2):423-35.
- U54HD028138