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You should contact a doctor or seek emergency care if you experience: Difficulty breathing or swallowing Significant facial or throat swelling Persistent or worsening injection-site reactions (such as increasing pain, pus, or red streaks) Severe, unusual, or unexpected symptoms after use Signs of systemic illness like extreme fatigue, jaundice (yellowing of the skin or eyes), or neurological changes, which could indicate severe copper imbalance

Although no cell death was detected in striatal tissues at this age 13 , changes in gene expression suggest a degenerative process in these neurons

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