What are EDCs And How itâs Dangerous?
Endocrine-disrupting chemicals (EDCs) are exogenous chemicals that interfere with hormone action, thereby increasing the risk of adverse health outcomes, including cancer, reproductive impairment, cognitive deficits, and obesity.
The endocrine system is composed of glands that secrete chemical messengers (hormones) that interact with specific targets (receptors). These interactions lead to the regulation of a vast set of functions, including growth, development, reproduction, energy balance, metabolism, and body weight regulation
EDCs come from many different sources, people are exposed in several ways, including the air we breathe, the food we eat, and the water we drink. EDCs can also enter the body through the skin. Common examples of EDCs are Industrial chemicals and pesticides, some processed foods, Soy-based products, and even household dust.
The group of molecules identified as endocrine disruptors is highly heterogeneous and includes synthetic chemicals used as industrial solvents/lubricants and their byproducts [polychlorinated biphenyls (PCBs), polybrominated biphenyls (PBBs), dioxins], plastics [bisphenol A (BPA)], plasticizers (phthalates), pesticides [methoxychlor, chlorpyrifos, dichlorodiphenyltrichloroethane (DDT)], fungicides (vinclozolin), and pharmaceutical agents [diethylstilbestrol (DES)].
Do EDCs really threaten our endocrine system?
Various researches have shown that EDCs could be very harmful to the system. For instance, EDC can interact with or activate hormone receptors, antagonize it and further alter the hormone receptor expression. It has also been shown EDC has the ability to alter signal transduction (including changes in protein or RNA expression, post-translational modifications, and/or ion flux) in hormone-responsive cells and induce epigenetic modifications in hormone-producing or hormone-responsive cells. It can also alter hormone transport across cell membranes and change the hormone distribution or circulating hormone levels. Moreover, it can also alter hormone metabolism or clearance and alter the fate of hormone-producing or hormone-responsive cells.
Thus, after coming across threats pose by EDCs, it would be a great move to go for 100% pure, non-toxic, and EDC-free products for healthy well-being.
EDC has the ability to affect different persons differently. For example, the effect that it incurs on females is quite different from her male counterpart.Â
EDCs on Female Reproduction
Development and function of the female reproductive tract depend on coordinated biological processes that, if altered by endogenous or exogenous factors during critical periods of development or during different life stages, could have significant adverse effects on womenâs health and reproductive function and outcomes.
A key question arises as to whether EDCs contribute to the development of female reproductive disorders, particularly those occurring during a critical window of susceptibility: in utero, neonatally, in childhood, during puberty, and during adulthood. There are increasing data from wildlife studies and laboratory studies with rodents, ungulates, and nonhuman primates that support the role of EDCs in the pathogenesis of several female reproductive disorders, including polycystic ovarian syndrome, aneuploidy, POF, reproductive tract anomalies, uterine fibroids, endometriosis, and ectopic gestation.
Polycystic ovarian syndrome (PCOS)Â
PCOS is a heterogeneous syndrome characterized by persistent anovulation, oligo- or amenorrhea, and hyperandrogenism in the absence of thyroid, pituitary, and/or adrenal disease. It is plausible that in utero exposure of human female fetuses to androgen-like EDCs could result in PCOS in adulthood, along with associated metabolic disorders. Very recent evidence for androgenic properties of personal-care products such as triclocarban adds to the possibility of environmental androgens, although a connection to PCOS has not yet been drawn.Â
Some studies have indicated that organochlorine pesticides (synthetic EDCs) adversely affect the ovary by reducing ovarian weight, follicle growth, and oocyte viability and/or increasing atresia. Several studies show that pesticide exposure is associated with reduced fertility in women and animal models. Organochlorine pesticide exposure was associated with an increased time to pregnancy in women.Â
Epidemiological data show that the selected EDCs are associated with adverse fertility outcomes such as reduced gestational age, weight, pregnancy gain, increased risk for miscarriage, and time to pregnancy in women. Experimental data show that EDC exposure during adulthood caused a range of effects such as estrous cyclicity abnormalities, decreased pregnancy rates, decreased pup survival, and the increased onset of reproductive senescence. Some studies report that EDCs exert toxicity through estrogen receptors, aryl hydrocarbon receptors, and peroxisome proliferator-activated receptor activation mechanisms, but they have not examined other potential pathways.
Endocrine Disruptors and Child Health
The exposure may occur early in life as every pregnant woman has EDs in her body and may transfer them through the placenta to the fetus and through milk to the infant. Inhalation, oral and dermal exposures are the main routes of adult exposure to environmental chemicals. EDs may act via classical nuclear receptors, nonnuclear steroid hormone receptors, nonsteroid receptors, orphan receptors, enzymatic pathways involved in steroid biosynthesis and/or metabolism, and other mechanisms involved in endocrine and reproductive system function.Â
The environmental toxins have been found in our air, water, and soil as well as in a range of household products, including childrenâs toys. Bisphenol A (BPA) is used in certain childrenâs toys, plastic bottles, and food containers, food can linings, and cash register receipts. The concern has grown since even a low level of exposure to EDCs can affect body functions, particularly in the most vulnerable populations including infants and children. Some EDCs may be stored in fat cells for years after exposure and may be passed on to children during pregnancy or when breastfeeding.
Although scientists are still working to understand how endocrine disruptors are accumulated and excreted, they do know that significant levels of these compounds can be detected in a vast majority of people today. Although tests that measure the presence of the metabolites made by endocrine disruptors can give you an idea of your overall exposure to these insidious chemicals, detoxification treatment protocols arenât yet well-defined.
What experts do know, however, is that certain endocrine disruptors tend to accumulate in body fat. In such cases, simply losing a few extra pounds may be enough to decrease chemical concentration and restore optimal fertility. In most cases, the best way to protect your fertility from the harmful effects of endocrine disruptors is by taking steps to minimize your exposure to EDCs in the first place.
The first step in avoiding these ubiquitous chemicals is knowing that they can be found in a wide range of everyday products, including commonly used pesticides and herbicides, plastic bottles, vinyl shower curtains, metal food cans, nonstick cookware, detergents, and coatings used on fabrics, furniture, and carpeting. Theyâre also found in many personal care products, including shampoo and cosmetics.
Wash your hands often Frequent - handwashing helps wash a substantial amount of chemical residue down the drain. Just be sure to avoid antibacterial and fragranced soaps, which are known endocrine disruptors.Â
Keep your house clean - Flame retardants and other industrial coatings can escape from fabrics, furniture, carpeting, and electronics and accumulate in household dust. You can minimize these free-floating, breathable chemicals by routinely dusting with a damp cloth and cleaning your carpets with a vacuum that has a HEPA filter.
Use less plastic - Switch to Purely family EDC-free household products. Because research shows that even very low-dose exposure to BPA and other plasticizers can be detrimental to fertility and reproduction, itâs a good idea to eliminate as many products made with plastic or vinyl from your life as you can. Swap plastic cups for glasses, use stainless steel or glass storage containers instead of plastic ones, opt for reusable fabric baggies, and keep food fresh with beeswax-coated cloth instead of plastic cling wrap.
