Association between serum PLP levels and the natural resolution of nausea and vomiting in pregnancy: a secondary analysis

Higher serum PLP levels in early pregnancy were significantly associated with a faster rate of spontaneous remission of NVP. The observed linear association suggests that the active form of vitamin B6 may regulate NVP progression, reflecting the biochemical basis of natural symptom resolution. PLP may be a potential biomarker for evaluating NVP severity and predicting individualized therapeutic response.