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.



Margaret Groves

Margaret N. Groves, M.Phil., ELS is a scientific and technical writer for ZRT Laboratory. She researches the medical literature on topics relevant to ZRT testing products, contributes to the ZRT product information supplied to health care providers, and as part of the research team helps with writing up ZRT’s research studies for publication.


Recent Posts

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.

Read More

A Case Study for Menopause Awareness

Posted by Margaret Groves on Friday, 14 September

Postmenopausal women using ZRT Laboratory's neurotransmitter testing to assess her current medical issues

Looking for case studies on how neurotransmitter testing can help patients? Want to learn more about interpreting these tests?

We invite you to discover 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 reviews on conditions including anxiety and depression, ADHD, PTSD, insomnia and many others – highlighting real patients and their results, ranging in age from children to post-menopause, as well as a veteran with PTSD.

Read More

Research Updates – Trials of HRT Started in Early Menopause

Posted by Margaret Groves on Friday, 15 September

Menopausal woman blowing a dandelion

One of the primary objectives of the Women's Health Initiative was to see if postmenopausal hormone replacement therapy (HRT) improved long-term risk of coronary heart disease, among other chronic diseases.

However, the combined estrogen/progestin (Prempro) arm was halted in 2002, citing that the participants’ risk of cardiovascular disease outweighed any potential benefit of HRT in the prevention of colorectal cancer and bone fracture [1]. The conjugated equine estrogen (CEE)-only arm was also halted in 2004 citing no improvement in heart disease risk but an increased incidence of stroke, and no benefit in terms of fractures, although there was a reduced breast cancer risk [2].

Yet the WHI investigators published a report this week [3] after a cumulative follow-up of 18 years finding that there was no overall increase in all-cause, cardiovascular, or cancer mortality as a result of either Prempro or CEE-only treatment during their participation in the trial.

Read More

Your Checklist for Partnering with a Quality Lab

Posted by Margaret Groves on Thursday, 20 April

ZRT scientist working in the laboratory

Quality testing is a vital component of a physician's evaluation of a patient with a view to successful treatment. But how can health care providers ensure that the lab they are working with is giving them the quality they need?

We’re often asked "Why should I partner with your lab? What distinguishes you from the others?" While many providers are expecting the obvious answers like fair prices and fast, reliable results – which are definitely important – we like to dig a bit deeper than this.

At ZRT Laboratory, we think there are six important measures to help determine the quality of a lab.

Read More