Topical Application of Methyl Nicotinate Solution Enhances Peripheral Blood Collection

Area of Science:

• Hematology
• Dermatology
• Pharmacology

Background:

• Peripheral blood collection is crucial for diagnostics.
• Challenges exist in obtaining adequate peripheral blood samples, especially from certain patient groups.
• Improving blood collection techniques is an ongoing area of research.

Purpose of the Study:

• To assess methyl nicotinate solution's effect on peripheral blood cell content and proportion.
• To evaluate the safety and reliability of methyl nicotinate for enhancing peripheral blood collection.

Main Methods:

• Peripheral blood samples were collected from earlobes treated with varying methyl nicotinate concentrations.
• Routine blood analysis and flow cytometry were employed to analyze blood cell counts and T lymphocyte subsets.
• A control group with untreated earlobes was used for comparison.

Main Results:

• Methyl nicotinate significantly increased earlobe blood flow, particularly at concentrations above 10-4 mol/L.
• No significant alterations were observed in the proportions of major blood cell types (WBC, RBC, platelets) or differential counts.
• A non-significant increase in T lymphocyte proportion was noted in the methyl nicotinate-treated group.

Conclusions:

• Local application of methyl nicotinate is a viable approach to improve peripheral blood collection.
• This method offers a practical solution for patients with phobias or difficulties related to venous blood sampling.