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.



Dr. Kate Placzek

Kate Placzek, PhD, is a Senior Research Scientist at ZRT Laboratory.
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Recent Posts

The Distinction Between DHEA and DHEA-S and Why Both Are Important For a Healthy Brain

Posted by Dr. Kate Placzek on Wednesday, 08 February

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Everything we do, feel, think – it all starts with the brain. A balanced, healthy brain helps lay the essential foundation for optimal wellbeing. A small but significant aspect of brain health is regulated by a specific class of steroid molecules called neurosteroids. 

That the brain is a steroidogenic organ is widely accepted, and neurosteroids are woven into its very fabric. In fact, the term “neurosteroid” refers to cholesterol-derived steroid compounds that play critical roles in the nervous system - its development, maintenance and survival. “Neurosteroids: of the nervous system, by the nervous system, for the nervous system” as Baulieu said a decade and a half following the remarkable discovery of the very first neurosteroid - DHEA-S [1] [2]

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Goodbye 2016! Comfort Foods for Your New Year’s Celebration

Posted by Dr. Kate Placzek on Friday, 30 December

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When you think of comfort foods, what comes to mind? 

For me, it’s all about the firsts of the season. Sitting on the floor by the fireplace with its warmth permeating the room, it’s that first sip of eggnog – yes, the real stuff made from scratch. It’s the time when my house fills with the sweetness of a baking apple pie for the first time in many months. It’s also about the unending damp drizzle of Pacific Northwest winters and the haven of dry comfort on the inside enveloping my family and friends with a sense of belonging, connection and gratitude.

The Clinical Consultants group at ZRT hopes you enjoy these comfort food recipes and wishes you a Happy New Year!

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Diurnal Fluctuations in Norepinephrine and Epinephrine Levels as Part of the Healthy Stress Response

Posted by Dr. Kate Placzek on Thursday, 08 December

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Stress has become a synonymous, integral even, accompaniment of life in our fast-paced world. Generally regarded as "distress," our bodies struggle to re-establish physiological integrity at certain times, such as after working long hours, or when we have insufficient exercise, sleep and nutrition. Driven by persistent exposure to stressors, the body begins to lose its dynamic resilience and fails to return the system to a normal baseline healthy state. Derailed and overwhelmed, our susceptibility to stress-related diseases is greatly increased [1].

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The Black Cat(echolamine)s of Halloween

Posted by Dr. Kate Placzek on Monday, 31 October

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Do you enjoy feeling scared? Not in a life-threatening way. In a safe, controlled environment, scared in a "fun way," without any consequences. The mechanisms of thrill-seeking evolved from the very same mechanisms that allowed us to survive as a species – the fight or flight response, wired into our biochemistry. This time of year we scare ourselves with the sole purpose of experiencing the bleary territory between the living and the dead. The strong emotional response associated with Halloween is one of the reasons why many people love it so.

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