Accompanying his 32year old partner (with like her mother BRCA+ breast cancer ), a young man this week complains sorrowfully of total erectile failure within three days every time he resumes fluoxetine for longstanding depression.
This may suit those patients who eschew sexuality, who knowingly choose chemical castration.. But the drug doesnt fix the causes of depression, merely palliates, often no better than a placebo, sometimes worse- compared to natural multibeneficial antidepressant supplements.
We already long live in a sea of estrogenic endocrine disruptors decimating many species including humans, like pesticides and PCBs, as so aptly described by Deborah Cadbury and Prof Nils Skakkebaek in classic books eg The Feminization of Nature and The Estrogen Effect.
The commonest prescription drugs (synthetics- antidepressants; major psychotropes; amoxicillin, oxidants ( betablockers eg atenolol; nonsteroidal anti-inflammatory NSAID (which block antidepressant effects –the Paul Greengard hypothesis 2011 Rocherfeller Inst NY); statins (cholesterol -steroid and insulin disruptors), and patent synthetic sex hormones- are now routine if not mandatory prescription worldwide due to ruthless relentless marketing pressure- disease-mongering for profit- even in children, and worse, in patients with cancers. The commonest cancers- breast, prostate, uterus- are estrogen-driven.
Such environmentally and biologically hostile designer patent drugs-for-profit are increasingly detectable in surface wastewater globally from human excretion, and thus drinking water supplies .
Endocrine disruption studies of antidepressants (eg fluoxetine Prozacs, mianserin Lantanon (its commercial analogue successor is now Remeron), Bupropion Wellbutrin Zyban; Venlafaxine Effexor and desimipramine) in surface water in Canada, USA, Mexico, Brazil and Belgium since 2006, and longer for antipsychotics, statins and NSAIDS, show estrogenic ie antiandrogenic risks for eg gender development and thus for breast/prostate cancer, for virility and fertility..
Doctors mostly blithely ignore that reproductive young females have by evolutionary reproductive necessity 100fold lower androgenic:estrogenic balance (eg 3:1) than men (eg 300:1), and are also far more prone than males both to estrogenic contraception prescription harm, and to common major depression and autoimmune disease like rheumatod arthritis and lupus, and thus to the double peril of mutiple estrogenic prescription.
Recently common NSAIDs eg ibrufen, diclofenac and mefanemic acid have been shown to be estrogenic in fish.
But such elective prescription of ( endocrine disruption) cancer- and infertility- promotors (antidepressants, NSAIDS, hormone contraception and HRT etc) , is hardly desirable or ethical at any age, especially when patients and their parents are not informed of the grave risks of these drugs with no proven longterm benefits (except for contraception).
new reviews gives more insight from a plastic surgeon into prevention, including the harms of xray mammography.
and into the gross dangerous overprescription of diabetogenic depressing hepato-nephro-myotoxic statins for all.
Popular painkillers eg opioids like oxycodin, fentanyl, tramadol on the other hand are similarly also powerful longacting hypoandrogenism–inducing drugs promoting estrogen dominance – which further complicates the misery and depression of those in chronic pain or depression, including from cancer, especially in women as well as men; who thus require monitoring of gonadal hormone levels and, if deficient, testosterone replacement. Aloisi ea Univ Siena 2012.
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Aquat Toxicol. 2010 ;100:354-64 .Waterborne fluoxetine disrupts the reproductive axis in sexually mature male goldfish, Carassius auratus.nMennigen JA, Lado WE, Zamora JM, Duarte-Guterman P, Langlois VS, Metcalfe CD, Chang JP, Moon TW, Trudeau VL University of Ottawa, Ontario, Canada. Fluoxetine (FLX) is a pharmaceutical acting as a selective serotonin reuptake inhibitor and is used to treat depression in humans. Fluoxetine and the major active metabolite norfluoxetine (NFLX) are released to aquatic systems via sewage-treatment effluents. They have been found to bioconcentrate in wild fish, raising concerns over potential endocrine disrupting effects. The objective of this study was to determine effects of waterborne FLX, including environmental concentrations, on the reproductive axis in sexually mature male goldfish. We initially cloned the goldfish serotonin transporter to investigate tissue and temporal expression of the serotonin transporter, the FLX target, in order to determine target tissues and sensitive exposure windows. Sexually mature male goldfish, which showed the highest levels of serotonin transporter expression in the neuroendocrine brain, were exposed to FLX at 0.54μg/L and 54μg/L in a 14-d exposure before receiving vehicle or sex pheromone stimulus consisting of either 4.3nM 17,20β-dihydroxy-4-pregnene-3-one (17,20P) or 3nM prostaglandin F₂(α) (PGF₂(α)). Reproductive endpoints assessed included gonadosomatic index, milt volume, and blood levels of the sex steroids testosterone and estradiol. Neuroendocrine function was investigated by measuring blood levels of luteinizing hormone, growth hormone, pituitary gene expression of luteinizing hormone, growth hormone and follicle-stimulating hormone and neuroendocrine brain expression of isotocin and vasotocin. To investigate changes at the gonadal level of the reproductive axis, testicular gene expression of the gonadotropin receptors, both the luteinizing hormone receptor and the follicle-stimulating hormone receptor, were measured as well as expression of the growth hormone receptor. To investigate potential impacts on spermatogenesis, testicular gene expression of the spermatogenesis marker vasa was measured and histological samples of testis were analyzed qualitatively. Estrogen indices were measured by expression and activity analysis of gonadal aromatase, as well as liver expression analysis of the estrogenic marker, esr1. After 14d, basal milt volume significantly decreased at 54μg/L FLX while pheromone-stimulated milt volume decreased at 0.54μg/L and 54μg/L FLX. Fluoxetine (54μg/L) inhibited both basal and pheromone-stimulated testosterone levels. Significant concentration-dependent reductions in follicle-stimulating hormone and isotocin expression were observed with FLX in the 17,20P- and PGF₂(α)-stimulated groups, respectively. Estradiol levels and expression of esr1 concentration-dependently increased with FLX. This study demonstrates that FLX disrupts reproductive physiology of male fish at environmentally relevant concentrations, and potential mechanisms are discussed.
Chemosphere. 2006:;65:1836-45.. Effects of the antidepressant mianserin in zebrafish: molecular markers of endocrine disruption.van der Ven K, Keil D, Moens LN, Hummelen PV, van Remortel P, Maras M, De Coen W. University of Antwerp, Belgium. Due to their environmental occurrence and intrinsic biological activity, human pharmaceuticals have received increasing attention from environmental and health agencies. Of particular, ecotoxicological concern are drugs that affect nervous- and endocrine-systems. Zebrafish genome-wide oligo arrays are used to collect mechanistic information on mianserin-induced changes in gene expression in zebrafish. Gene expression analysis in brain and gonad tissue clearly demonstrated the estrogenic activity of mianserin and its potency to disrupt normal endocrine (estrogenic) signaling, based on induction of molecular biomarkers of estrogenicity (e.g., vitellogenin1 and zona pellucida proteins). The possible mechanism underlying this estrogenic activity of mianserin is disturbance of the Hypothalamo-Pituitary-Gonadal (HPG) axis by direct interference of mianserin with the serotonergic and adrenergic systems in the brain of zebrafish. Taking into account the importance of the HPG-axis, and considering the concept of ‘critical window of exposure’, our results reveal the importance for more elaborate testing of endocrine disruptive effects of aquatic antidepressants at different lifestages and during longer exposure periods (e.g., life cycle studies). Although there is a low concordance between the gene expression results in this study and previous cDNA microarray hybridizations, the global mechanistic expression patterns are similar in both platforms. This argues in favor of pathway-driven analysis of gene expression results compared to gene-per-gene analysis.
University of Algarve, Portugal .buprofen (IBU) is one of the most sold over-the-counter non-steroidal anti-inflammatory drugs (NSAID) and widely detected in the aquatic ecosystems. Nevertheless, the information regarding IBU effects in biota is still sparse. The goal of this study was to assess IBU potential effect as oxidative stress and endocrine disruption inducer in mussel Mytilus galloprovincialis applying a battery of biomarkers. Over two weeks of exposure to IBU (250 ngL(-1)), superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), phase II glutathione S-transferase (GST) activities and lipid peroxidation (LPO) levels were determined in the digestive gland and alkali-labile phosphates (ALP) were carried out in sex-differentiated mussels’ gonads. The results confirm a transitory induction of antioxidant activities responses concomitant to lipid peroxide formation outline and an increase of ALP levels over time, particularly in exposed males which may lead to mussels’ reproductive fitness impairment highlighting a higher impact of IBU as an endocrine disruptor than as a short-term reactive oxygen species (ROS)-generator.
BMC Med. 2013; 11:57.. The effect of statins on testosterone in men and women, a systematic review and meta-analysis of randomized controlled trials. Schooling CM, Au Yeung SL, Freeman G, Cowling BJ. CUNY School of Public Health York, .Statins are extensively used for cardiovascular disease prevention. Statins reduce mortality rates more than other lipid-modulating drugs, although evidence from randomized controlled trials also suggests that statins unexpectedly increase the risk of diabetes and improve immune function. Physiologically, statins would be expected to lower androgens because statins inhibit production of the substrate for the local synthesis of androgens and statins’ pleiotropic effects are somewhat similar to the physiological effects of lowering testosterone, so we hypothesized that statins lower testosterone. METHODS:A meta-analysis of placebo-controlled randomized trials of statins to test the a priori hypothesis that statins lower testosterone. We searched the PubMed, Medline and ISI Web of Science databases until the end of 2011, using ‘(Testosterone OR androgen) AND (CS-514 OR statin OR simvastatin OR atorvastatin OR fluvastatin OR lovastatin OR rosuvastatin OR pravastatin)’ restricted to randomized controlled trials in English, supplemented by a bibliographic search. We included studies with durations of 2+ weeks reporting changes in testosterone. Two reviewers independently searched, selected and assessed study quality. Two statisticians independently abstracted and analyzed data, using random or fixed effects models, as appropriate, with inverse variance weighting.RESULTS:Of the 29 studies identified 11 were eligible. In 5 homogenous trials of 501 men, mainly middle aged with hypercholesterolemia, statins lowered testosterone by -0.66 nmol/l (95% confidence interval (CI) -0.14 to -1.18). In 6 heterogeneous trials of 368 young women with polycystic ovary syndrome, statins lowered testosterone by -0.40 nmol/l (95% CI -0.05 to -0.75). Overall statins lowered testosterone by -0.44 nmol/l (95% CI -0.75 to -0.13). CONCLUSIONS: Statins may partially operate by lowering testosterone. Whether this is a detrimental side effect or mode of action warrants investigation given the potential implications for drug development and prevention of non-communicable chronic diseases. See commentary article here http://www.biomedcentral.com/1741-7015/11/58.