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Stop Smoking Hypnotherapy
If you've already tried a variety of the stop smoking
aids, and you've tried quitting smoking without any
help at all, you may think it's just not meant to be.
If you haven't tried quit smoking hypnosis, you should
take a minute to consider the possibility.
Potential prognostic value of heat shock protein 90 in the presence of phosphatidylinositol-3-kinase overexpression or loss of PTEN, in invasive breast cancers
IntroductionEvaluating the expression of signaling molecule proteins from the mitogen-activated protein kinase (MAPK) pathway and the phosphatidylinositol-3-kinase (PI3K) pathway in invasive breast cancers may identify prognostic marker(s) associated with early relapse.
Methods:
Immunohistochemical analyses of phosphatase and tensin homolog deleted on chromosome 10 (PTEN), PI3K-p110alpha, phospho-AKT, phospho-p70S6 kinase, phospho-S6 ribosomal protein, phospho-RAF, phospho-p44/42 MAPK, and heat shock protein 90 (HSP90) were performed on tumor samples from 212 patients with invasive breast cancer. Statistically significant relationships between protein expression, clinicopathologic factors, and relapse-free survival (RFS) were analyzed.
Results:
Expression of HSP90 was associated with 5-year RFS, as well as T stage, N stage, histologic grade, estrogen receptor (ER) expression, human epidermal growth factor receptor 2 (HER2) expression, and the Ki-67 proliferation index. On multivariate analysis, co-expression of HSP90 and PI3K-p110alpha or expression of HSP90 along with PTEN loss demonstrated significantly worse RFS. In subgroup analyses, both exhibited strong prognostic significance in HER2 positive cases, but not in HER2 negative cases.
Conclusions:
The co-expression of HSP90 with PI3K-p110alpha or expression of HSP90 along with PTEN loss have potential as molecular prognostic markers to predict early relapse in patients with invasive breast cancers.
| Genetic variation in the estrogen metabolic pathway and mammographic density as an intermediate phenotype of breast cancer
IntroductionSeveral studies have examined the effect of genetic variants in genes involved in the estrogen metabolic pathway on mammographic density, but the number of loci studied and the sample sizes evaluated have been small and pathways have not been evaluated comprehensively. In this study, we evaluate the association between mammographic density and genetic variants of the estrogen metabolic pathway.
Methods:
A total of 239 single nucleotide polymorphisms (SNPs) in 34 estrogen metabolic genes were studied in 1731 Swedish women who participated in a breast cancer case-control study, of which 891 were cases and 840 were controls. Film mammograms of the medio-lateral oblique view were digitalized and the software Cumulus was used for computer-assisted semi-automated thresholding of mammographic density. Generalized linear models controlling for possible confounders were used to evaluate the effects of SNPs on mammographic density. Results found to be nominally significant were examined in two independent populations. The admixture maximum likelihood (AML) - based global test was performed to evaluate the cumulative effect from multiple SNPs within the whole metabolic pathway and three sub-pathways for androgen synthesis, androgen-to-estrogen conversion and estrogen removal.
Results:
Genetic variants of genes involved in estrogen metabolism exhibited no appreciable effect on mammographic density. None of the nominally significant findings were validated. In addition, global analyses on the overall estrogen metabolic pathway and its sub-pathways did not yield statistically significant results.
Conclusions:
Overall, there is no conclusive evidence that genetic variants in genes involved in the estrogen metabolic pathway are associated with mammographic density in postmenopausal women.
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Quit Smoking today
There's no doubt that smoking is bad for your health,
but is it reason enough to give up smoking? The answer,
according to a general consensus by health officials
everywhere is a resounding "yes." Never smoking
is one of the best things you can do for yourself, but
stopping smoking (even after years of dependency) is
next on the list.
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