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Approved lab referenceFrom the archive
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Purser Wellness reference range Unit: mg/dL Male: 75-175 Female: 75-175 How to read this marker Ask your clinician to use performing-lab range and trend with C4/CH50 and disease activity. The wider testing context An autoimmune test can…

Approved lab referenceFrom the archive
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Purser Wellness reference range Unit: nmol/L Male: 13.3-89.5 Female: 18-46 y: 18.2-135.5; ≥47 y: 16.8-125.2 How to read this marker Estrogen, thyroid, liver disease, insulin resistance, age, and medications affect SHBG. The wider testin…

Approved lab referenceFrom the archive
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Purser Wellness reference range Unit: ng/mL / Z-score Male: Age-specific; Z -2 to +2 Female: Age-specific; Z -2 to +2 How to read this marker Age, sex, nutrition, liver disease, diabetes, and assay matter. The wider testing context For …

Books & reading guidesFrom the archive
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Chapter 14: Homocysteine Elevation, Inflammatory Markers, Transsulfuration Pathway Disruption, and Toxicant Exposures in Genetic Hyperhomocysteinemia Homocysteine and environmental exposures Why this matters Separate questions about toxin…

Books & reading guidesFrom the archive
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Homocysteine-Treatment-Steps-Flow-Chart Homocysteine: a map of the practice flow chart Why this matters Follow the questions linking symptoms, genetics, homocysteine, and immune signals. How the pieces connect A flow chart can help organ…

Report teachingOct 2, 2026
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This TNF promoter variant appears in Dr. Purser’s discussion of inflammatory signaling.

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