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  1. #1
    Join Date
    Nov 2003
    Berkeley, CA
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    Default Fluoxetine Inhibits Colon Cancer Replication In Vitro

    Not a groundbreaking result, but this constitutes more evidence that SSRIs may be protective against cancer.

    Will be very interesting to see in vivo studies on this subject, if/when they appear.

    Toxicol Lett. 2011 Apr 29. [Epub ahead of print]
    Fluoxetine induces preventive and complex effects against colon cancer development in epithelial and stromal areas in rats.

    Kannen V, Marini T, Turatti A, Carvalho MC, Brandão ML, Jabor VA, Bonato PS, Ferreira FR, Zanette DL, Silva WA Jr, Garcia SB.

    Department of Pathology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14049-900, Brazil.


    Fluoxetine (FLX) is a drug commonly used as antidepressant. However, its effects on tumorigenesis remain controversial. Aiming to evaluate the effects of FLX treatment on early malignant changes, we analyzed serotonin (5-HT) metabolism and recognition, aberrant crypt foci (ACF), proliferative process, microvessels, vascular endothelial growth factor (VEGF), and cyclooxygenase-2 (COX-2) expression in colon tissue. Male Wistar rats received a daily FLX-gavage (30mgkg(-1)) and, a single dose of 1,2 dimethylhydrazine (DMH; i.p., 125mgkg(-1)). After 6 weeks of FLX-treatment, our results revealed that FLX and nor-fluoxetine (N-FLX) are present in colon tissue, which was related to significant increase in serotonin (5-HT) levels (P<0.05) possibly through a blockade in SERT mRNA (serotonin reuptake transporter; P<0.05) resulting in lower 5-hydroxyindoleacetic acid (5-HIAA) levels (P<0.01) and, 5-HT2C receptor mRNA expressions. FLX-treatment decreased dysplastic ACF development (P<0.01) and proliferative process (P<0.001) in epithelia. We observed a significant decrease in the development of malignant microvessels (P<0.05), VEGF (P<0.001), and COX-2 expression (P<0.01). These findings suggest that FLX may have oncostatic effects on carcinogenic colon tissue, probably due to its modulatory activity on 5-HT metabolism and/or its ability to reduce colonic malignant events.
    Copyright © 2011. Published by Elsevier Ireland Ltd.

    PMID:21554931 [PubMed - as supplied by publisher]

  2. #2
    Junior Member
    Join Date
    Jan 2012
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    Hi, just wanna add some tips regarding colon cancer treatment.. It's recommended for those who has colon cancer to:

    Stay active and try to include at least 30 minutes of exercise into your day. Not only does exercise help you lose weight and stay fit, it can also reduce the risk that you will develop certain kinds of cancer, including breast and colon cancer. Try to make fitness fun by taking a class or partnering with a friend to exercise.

    Eat at least 2 servings of blueberries a day. Studies have shown blueberries contain pterostilbene. Pterostilbene is said to help prevent colon-cancer. In addition, blueberries have Vitamin C. Large does of vitamin C have been linked to a decrease in oral lesions. Breakfast is a great time to include them in your diet.

    We are all susceptible to cancer, no matter how strong we think we are. We're also all likely to lose track and make poor, uninformed decisions when we allow grief, guilt and self-pity to rule over common sense. Make sure you never act uninformed. The tips you've read here can help you make the best decisions for your disease.

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