Polymorphic variants in genes related to stress coping are associated with the awake bruxism.

Background: Chronic stress is one of the leading predisposing factors in bruxism aetiology, but the influence of genetic factors is also suggested. We aimed to study whether sequence variants in genes involved in stress regulation pathways: NTRK2 and BDNF, may be associated with awake bruxism susceptibility, clinical presentation, and patients' perceived stress level.

Methods: The study group included 104 patients with probable awake bruxism and 191 population controls.

Modifying impact of gene haplotypes on medullary thyroid carcinoma clinical course.

The clinical course of medullary thyroid carcinoma (MTC) associated with the MEN2A syndrome as well as of sporadic MTC shows considerable heterogeneity. The disease picture varies not only between the same proto-oncogene mutation carriers but also among sporadic MTC patients with no germinal mutations, which suggests the involvement of additional modulators of the disease. However, genetic factors responsible for this heterogeneity of the MTC clinical course still remain unknown.

The c.470 T > C CHEK2 missense variant increases the risk of differentiated thyroid carcinoma in the Great Poland population.

Background: Differentiated thyroid carcinoma (DTC) originates from thyroid follicular epithelial cells and belongs to a group of slowly progressing tumors with a relatively good prognosis. However, recurrences and metastases are a serious problem in advanced stages. Furthermore, progression from a well differentiated thyroid carcinoma to an aggressive anaplastic one is possible.

gene polymorphic variants in patients with differentiated thyroid carcinoma.

Alterations in the gene affect the cell cycle and are frequently observed in a variety of cancers. While the most frequent mutations that occur in thyroid tumor tissue have been characterized, the genetic factors that predispose individuals to differentiated thyroid cancer (DTC) remain to be elucidated. The present study examined whether the c.

[Association study between exon 4 NFKBIL1 polymorphism and multiple sclerosis].

Unlabelled: Multiple sclerosis (MS) is conceptualised as a complex autoimmune inflammatory disorder in which several environmental factors act together in a genetically susceptible individual to cause disease. Epidemiological data confirmed that genetic factors are involved in MS pathogenesis. Genes responsible for MS predisposition still await to be identified.

[Does smoking influence the course of Crohn's disease in patients with the presence of gene NOD2/CARD15 mutation?].

Inflammatory bowel diseases can be divided into two diseases: ulcerative colitis and Crohn's disease. It is well known that there is the influence of smoking on these course of diseases and the number of flares. This influence is different in both diseases and is definitely negative among patients with Crohn's disease.