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Impact of Brain Invasion on BBB Integrity We explore how neurotrophic viruses and metastatic cancer cells enter the brain via the BBB (Figure 5)

Over time, this hinders hair growth and may even accelerate hair follicle miniaturization a defining hallmark of male and female pattern hair loss (7)

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the clinical relevance of this finding in humans is unknown, and in UK and EU prescribing information this is noted as a precaution rather than a formal contraindication but individuals with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 (MEN2) should discuss this with their doctor