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Author Archive | Lewis Perdue

Progress Report/What we have learned: hsCRP as a possible direct clinical indicator for BPA health effects in in a human dietary intervention study

NOTE: This is a draft (January 22, 2020). Further edits and citations will follow. In addition, the format below has been adapted from that used by Environmental Health Perspectives. This structure is used because it is an effective and familiar shorthand. This should not be interpreted as a draft intended for submission to a scientific […]

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Best practices — Sourcing Dairy: Milk, Cheese, Yogurt, Butter methods and barriers

Dairy has many opportunities for plastic contamination For dairy products, we created an ultra-strict sourcing protocol that assumed that the introduction of plastic chemicals into the dairy food chain begins with the milking process. That strict protocol had to be drastically altered will be described below. To consumers, the most obvious connection between plastic and […]

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Summary: What’s the Stealth Syndromes Human Study About?

NOTE: This is a summary of the current amended menu selection, rationale, and other information. The full study, including revised scientific protocol and the expanded nutritional and food selection process as approved by the University of San Francisco Medical School Committee on Human Research can be accessed at this link (pdf). A previously approved (UCSF-IRB/CHR) […]

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Stealth Syndromes Human Study – The Protocol

NOTE: This is a summary of the current amended protocol. The full study, including revised protocol and the expanded nutritional and food selection process as approved by the University of San Francisco Medical School Committee on Human Research can be accessed at this link (pdf). A previously approved (UCSF-IRB/CHR) version that includes numerous footnoted references […]

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How food processing adds contamination

NOTE: This is an edited version of Appendix 3 of the “Revised Stealth Syndromes Study Protocol as approved by the University of California San Francisco Medical School Committee on Human Research. Contamination of basic foods — even those that do not undergo extensive processing — comes from: Contact with contaminated soil and water during planting, […]

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Why plastic isn’t just plastic: This is how the food chain gets contaminated by plastic chemicals

NOTE: This is an edited version of Appendix 3 of the “Revised Stealth Syndromes Study Protocol as approved by the University of California San Francisco Medical School Committee on Human Research. Plastic chemicals contaminate our food because plastic isn’t just plastic. Instead, what we see as plastic is a mixture of one or more polymers […]

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Revised Stealth Syndromes Human Study Protocol- APPENDIX 1 – Reproducibility

REPRODUCIBILITY – THE SCIENTIFIC PROBLEM THAT DEMANDED ENHANCED SOURCING OF THE STUDY DIET Reproducibility + Confounding factors drive changes, increase complexity, & costs Reproducibility is the acid test of properly done studies that produce valid data. In the past couple of years, the “reproducibility crisis” has been the subject of numerous scholarly articles and comments. […]

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Revised Stealth Syndromes Human Study Protocol – APPENDIX 2 – Detailed parameters of intervention diet selections

Water All water consumed and/or used for cooking, washing, drinking or used to irrigate self-grown plants will be obtained from a commercial device using a solid-block carbon filter and certified by NSF for reduction of BPA and phthalates. One such device is the Aquaversa filter from Multipure which uses a carbon block filter that lists […]

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Revised Stealth Syndromes Human Study Protocol – APPENDIX 4 – Additional references: Non-food contamination sources

Xenobiotic Organic Compounds in Greywater and Environmental Health Impacts Phthalates in Indoor Dust and Their Association with Building Characteristics Green Chemistry and the Search for New Plasticizers Overview of air pollution and endocrine disorders Neurotoxicity of fragrance compounds: A review Poly(Vinyl Chloride) Green Chemistry in Textiles Formaldehyde in your fabrics Toxic Free Supply Chain for […]

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