Werner syndrome
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MEN-1 (Werner syndrome)
![The Werner syndrome protein confers resistance to the DNA lesions N3-methyladenine and O^6-methylguanine: implications for WRN function [An article from: DNA Repair]](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_uHWU6jjSnifrad7Wuy-TNkeLVHAlCACxEIW5VCcUwyvCKj_aPlu_IaiZ58FB-9boSd8ljVVCgVncbRfQigOslgK67AQGvEE_6T7X7dCRDNoZArek-M19-FqlNlCMaw09lPAqDP-qX_vkikuuk4NkrFyHlQJ5IVKpdmMs5uQbJOwm8LjPbQdSX9MWPFEK-ZFjhB1iROBQDEcKWJyRO2W-aInggZXeaKojN53w1CZPQ=s0-d)
3 Ps:
- parathyroid
- pancreas
- pituitary
- the most common – and usually the first - manifestation of MEN-1
- can cause hypercalcemia (and related things, like kidney stones)
- pancreatic carcinoma
- big cause of morbidity/mortality
- often metastatic by the time of diagnosis
- can secrete stuff (gastrin, insulin) that causes symptoms
- pituitary adenoma
- prolactinoma most common
other stuff
- duodenal gastrinoma
- carcinoid
- adenomas of thyroid and adrenal cortex
- lipomas
Genetic stuff
MEN1 gene
- mutation in MEN1 gene
- MEN1 gene encodes menin (a nuclear protein that probably regulates transcription and the cell cycle)
- MEN1 is a classic tumor-suppressor gene (need to inactivate both alleles of the gene to get tumors)
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