32. Assessment acute and subacute toxicity of HemoShield in experimental animals

Nguyen Thi Thanh Huong, Duong Thi Nhung, Nguyen Tuong Anh, To Thanh Thuy, Nguyen Khanh Hoa

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Abstract

The study aimed to evaluate the acute and subacute toxicity of the HemoShield (HS) - a product of Vinh Phuc Pharmaceutical Company (VPO Pharco.) on mice and rats. Study the on the acute toxicity of the water extract on mice using the acute and subacute toxicity test methods according to the guidelines of the Ministry of Health and the OECD. Study the acute and sub acute toxicity of capsules on rats according to the instructions of the Ministry of Health. Research results show that with a dose of 5.0 g/kg of mouse body weight, no mouse died. HemoShield extract (1120.6 mg/kg mouse body weight/day) and dose 3 times the clinical dose of human (3360.7 mg/kg mouse body weight/day) for 4 consecutive weeks of taking the HS. All monitoring indicators of general condition, weight, hematopoietic function, liver function and kidney function are within normal limits, liver and kidney histopathology have no obvious differences compared to control group (p > 0.05). The number of platelets in mice taking high doses of the drug after 4 weeks decreased significantly compared to the control group but no bleeding symptom appeared in the tissues. Therefore, the HemoShield product is safe and can be used for further human studies at a dose not exceeding 171 mg/kg body weight.

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References

1. Nguyen-Tien T, Do DC, Le XL, et al. Risk factors of dengue fever in an urban area in Vietnam: a case-control study. BMC Public Health. 2021/04/07 2021;21(1):664. doi:10.1186/s12889-021-10687-y
2. Islam MA, Hemo MK, Marzan AA, et al. A short communication of 2022 dengue outbreak in Bangladesh: a continuous public health threat. Annals of medicine and surgery (2012). Jun 2023;85(6):3213-3217. doi:10.1097/ms9.0000000000000623
3. Đỗ Tất Lợi. Những cây thuốc và vị thuốc Việt Nam. Nhà xuất bản Y học; 2004.
4. Thanabhorn S, Jaijoy K, Thamaree S, et al. Acute and subacute toxicity study of the ethanol extract from Lonicera japonica Thunb. Journal of ethnopharmacology. Oct 11 2006;107(3):370-3. doi:10.1016/j.jep.2006.03.023
5. Siharat C, Nirush L, Srisawat U, et al. Acute and subchronic toxicity study of the water extract from root of Imperata cylindrica (Linn.) Raeusch. in rats. Songklanakarin Journal of Science and Technology. 03/01 2007;29
6. Jung YK, Shin D. Imperata cylindrica: A Review of Phytochemistry, Pharmacology, and Industrial Applications. Molecules (Basel, Switzerland). Mar 7 2021;26(5)doi:10.3390/molecules26051454
7. Zhang RX, Li MX, Jia ZP. Rehmannia glutinosa: review of botany, chemistry and pharmacology. Journal of ethnopharmacology. May 8 2008;117(2):199-214. doi:10.1016/j.jep.2008.02.018
8. Shang X, Pan H, Li M, et al. Lonicera japonica Thunb.: ethnopharmacology, phytochemistry and pharmacology of an important traditional Chinese medicine. Journal of ethnopharmacology. Oct 31 2011;138(1):1-21. doi:10.1016/j.jep.2011.08.016
9. Bộ Y tế. Quyết định số 141/QĐ-K2ĐT ngày 27/10/2015 “Hướng dẫn thử nghiệm tiền lâm sàng và lâm sàng thuốc đông y, thuốc từ dược liệu”.
10. OECD GUIDELINE FOR TESTING OF CHEMICALS NO. 423 Acute Oral Toxicity – Acute Toxic Class Method, adopted 17/12/2001
11. OECD GUIDELINES FOR THE TESTING OF CHEMICALS NO. 407 Repeated Dose 28-Day Oral Toxicity Study in Rodents, adopted 03/10/2008.
12. Mourão CF, Lowenstein A, Mello-Machado RC, et al. Standardization of Animal Models and Techniques for Platelet-Rich Fibrin Production: A Narrative Review and Guideline. Bioengineering. 2023;10(4):482.