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The inside story on food intolerance: the case for IgG4 ELISA testing

By Nastya Yeska

There is a definite role for IgG4 testing when diagnosing and treating pathologies that are associated with elevated levels of specific IgGs, such as Crohn’s disease, ulcerative colitis and irritable bowel syndrome.¹,² This is despite the fact that IgG4 testing has had a lot of bad press over the years, mainly because it has been shown that elevated IgG4 levels for certain food antigens may simply be an indicator of exposure and tolerance of a specific food, rather than an indicator of “true” food intolerance.³  With that in mind, we look here both at the science behind the tests, and the evolving IgG and IgG4 ELISA testing market.

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Women’s health and the advantages of saliva hormone testing

By Nastya Yeska

Women are affected by the ever-changing levels of their female sex hormones throughout all stages of their lives. These fluctuations may be normal or abnormal and may affect the development of a young woman’s secondary sexual characteristics, menstrual cycling and associated disorders, pregnancy and infertility issues, cardiovascular and bone health, and perimenopausal and menopausal symptoms. Saliva hormone testing is easy to do and is often the first step in diagnosing and better understanding the cause of a variety of women’s health problems. Saliva testing is a simple and noninvasive method of measuring female hormones that offers advantages over traditional blood testing as a female hormone imbalance test.

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More than a gut feeling: food intolerance and the role of specific IgG and IgG4 testing

By Nastya Yeska

Food intolerance or sensitivity to many common foods, such as gluten, dairy or other products, appears to be on the increase. This begs the question: does food intolerance really exist, or is it simply a trendy fad in today’s health-conscious society? In this new blog series we start by reviewing the science behind food intolerance, outline its potential causes, and investigate how it could be reliably diagnosed and treated using IgG-based tests such as ELISA.

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