The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

A Case Study for Breast Cancer Awareness Month

Posted by Margaret Groves on Thursday, 18 October

ZRT Laboratory Analyzes Neurotransmitter Test Results of a Postmenopausal Woman with Breast CancerDid you know that ZRT offers clinical case reviews for neurotransmitter testing? 

If you want to learn more, check out Dr. Kate’s Clinical Cases, a library of presentations, created by Dr. Kate Placzek, to assess patient issues with the aid of neurotransmitter testing. 

You’ll find case presentations focused on various conditions from anxiety and depression, ADHD, PTSD, insomnia and many others, highlighting real patients and their results, ranging in age from children to postmenopause, as well as a veteran with PTSD.

For Breast Cancer Awareness Month let’s take a closer look at a recent case study of a postmenopausal woman with breast cancer.

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Five Common Sources of Mercury Exposure

Posted by Ted Zava on Friday, 27 July

X-Ray of teeth with fillings that contain mercury

Mercury is one of the most toxic heavy metals. There are numerous natural and man-made sources of mercury, but the most concerning are the ones we are exposed to daily. Mercury is known to affect the nervous, circulatory, immune, reproductive, and digestive systems, along with organs such as the kidneys, lungs, and gastrointestinal tract. Mercury primarily targets sulfhydryl groups (sulfur) and selenium, for which it has a high affinity. Later in this blog is a list of the most common sources of mercury exposure, but before we get into that, it is important to distinguish the three different types of mercury and their common exposure routes.

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Cadmium’s Connection to Infertility and Reproduction

Posted by Ted Zava on Thursday, 14 June

Couple distressed over infertility results

Cadmium is a dangerous heavy metal and a known carcinogen. Even though daily exposure is usually relatively low compared to toxins like arsenic, cadmium bioaccumulates with a half-life in the body of 25-30 years.

Essentially, the older you are, the more cadmium you have stored in your body. When cadmium exposure is high, it increases cellular oxidation products that deplete antioxidants like glutathione peroxidase and superoxide dismutase, rendering the body defenseless to further oxidative damage [1].

The most common sources of cadmium exposure are green leafy vegetables and grains, as cadmium is accumulated from contaminated water and soil. Thus, people consuming plant-based diets may be at a higher risk for cadmium exposure. Tobacco, a green leafy plant, concentrates cadmium, which is then highly absorbed through the lungs when smoked, resulting in blood cadmium levels 3 times higher than in non-smokers [2]. In comparison, only a small percentage of cadmium is absorbed in the gut from food. Other sources of cadmium include industrial activities such as smelting and refining, mining, and manufacturing of batteries and cadmium-containing pigments. 

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Heavy Metals, Nutrients & Mental Health

Posted by Dr. Kate Placzek on Wednesday, 23 May

Young boy grazing hand over water

Influenced by our environment, we are constantly being exposed to elements, whether nutritional or toxic. They are a big contribution to the yin yang dualism of health and disease. 

With heavy metals, contamination is so extensive nowadays that it is no longer a question of whether exposure took place, but rather what the level of exposure was or continues to be.

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