1.Protective and Therapeutic Effects of Houttuynia cordata for Vitiligo Induced by Oxidative Stress and Hydroquinone
Badmaarag-Altai CHULUUNBAATAR ; Se-woong KIM ; Yunjo SOH
Natural Product Sciences 2024;30(3):220-226
Vitiligo is a type of chronic autoimmune skin disorder that is highly unpredictable. Houttuynia cordata Thunb. (HC) is a natural compound with several pharmacological properties; however, the fundamental mechanisms of HC effects on Vitiligo have yet to be fully understood. This study aimed to evaluate the effects of HC on the oxidative injury of melanocytes in vivo and in vitro. This study demonstrated that compounds significantly prevented the hydrogen peroxide (H2O2 )-induced B16F10 cell loss of viability and melanin synthesis; in addition, cell apoptosis-regulating of melanocytes significantly decreased, and the expression level of TRP-1 and MITF increased dose-dependently. In animal experiments, C57BL/6 mice received 5% hydroquinone (HQ) for 5 weeks and were treated with HC for 2 weeks. HQ-stimulated vitiligo in mice also produced melanocyte and melanosome degradation. The melanin content and tyrosinase activity of the mice (skin) that received the HC group significantly increased compared to the untreated and 8-methoxyprosalen (8-MOP) groups. These experiments suggest that the HC has potential protective and therapeutic effects for vitiligo.
2.Combination of Cannabidiol with Taurine Synergistically Treated Periodontitis in Rats
Se Woong KIM ; Saroj Kumar SHRESTHA ; Badmaarag-Altai CHULUUNBAATAR ; Yunjo SOH
Biomolecules & Therapeutics 2025;33(1):203-209
The active component in cannabis, cannabidiol (CBD), was first isolated from the hemp plant in 1940. Chronic pain, inflammation, migraines, depression, and anxiety have long been treated with CBD. The fundamental mechanisms of CBD’s effects on periodontal inflammation have yet to be fully understood. The amino sulfonic acid taurine is a substance that naturally exists in the body and is an inhibitory modulator of inflammation. This study examined the effects of CBD, taurine, and their combination on inflammatory cytokines and periodontitis in vivo. To assess the expression of inflammatory markers of iNOS, COX-2, TNF-α, and IL-1β, as well as TRAP count and resorbed pit areas, CBD and taurine were applied to RAW264.7 cells. The following groups of 45 Sprague-Dawley rats each were created: control (healthy), vehicle (induced periodontitis), low- and high-dose-CBD with taurine which were each treated for an additional 21 days. Rat teeth were obtained and subjected to histomorphometric studies.The combination of the two significantly decreased the expression of inflammatory markers TNF-α and IL-1β and the amount of TRAP+ cells and resorbed pit areas. Among rats with P. gingivalis-induced periodontitis, the alveolar bone resorption levels, periodontal pocket depth, and distance between cementoenamel junction (CEJ) and alveolar bone crest (ABC) were significantly reduced after treatment with CBD and taurine, suggesting that combining CBD with taurine could be a novel therapeutic agent against periodontal disease.
3.Combination of Cannabidiol with Taurine Synergistically Treated Periodontitis in Rats
Se Woong KIM ; Saroj Kumar SHRESTHA ; Badmaarag-Altai CHULUUNBAATAR ; Yunjo SOH
Biomolecules & Therapeutics 2025;33(1):203-209
The active component in cannabis, cannabidiol (CBD), was first isolated from the hemp plant in 1940. Chronic pain, inflammation, migraines, depression, and anxiety have long been treated with CBD. The fundamental mechanisms of CBD’s effects on periodontal inflammation have yet to be fully understood. The amino sulfonic acid taurine is a substance that naturally exists in the body and is an inhibitory modulator of inflammation. This study examined the effects of CBD, taurine, and their combination on inflammatory cytokines and periodontitis in vivo. To assess the expression of inflammatory markers of iNOS, COX-2, TNF-α, and IL-1β, as well as TRAP count and resorbed pit areas, CBD and taurine were applied to RAW264.7 cells. The following groups of 45 Sprague-Dawley rats each were created: control (healthy), vehicle (induced periodontitis), low- and high-dose-CBD with taurine which were each treated for an additional 21 days. Rat teeth were obtained and subjected to histomorphometric studies.The combination of the two significantly decreased the expression of inflammatory markers TNF-α and IL-1β and the amount of TRAP+ cells and resorbed pit areas. Among rats with P. gingivalis-induced periodontitis, the alveolar bone resorption levels, periodontal pocket depth, and distance between cementoenamel junction (CEJ) and alveolar bone crest (ABC) were significantly reduced after treatment with CBD and taurine, suggesting that combining CBD with taurine could be a novel therapeutic agent against periodontal disease.
4.Combination of Cannabidiol with Taurine Synergistically Treated Periodontitis in Rats
Se Woong KIM ; Saroj Kumar SHRESTHA ; Badmaarag-Altai CHULUUNBAATAR ; Yunjo SOH
Biomolecules & Therapeutics 2025;33(1):203-209
The active component in cannabis, cannabidiol (CBD), was first isolated from the hemp plant in 1940. Chronic pain, inflammation, migraines, depression, and anxiety have long been treated with CBD. The fundamental mechanisms of CBD’s effects on periodontal inflammation have yet to be fully understood. The amino sulfonic acid taurine is a substance that naturally exists in the body and is an inhibitory modulator of inflammation. This study examined the effects of CBD, taurine, and their combination on inflammatory cytokines and periodontitis in vivo. To assess the expression of inflammatory markers of iNOS, COX-2, TNF-α, and IL-1β, as well as TRAP count and resorbed pit areas, CBD and taurine were applied to RAW264.7 cells. The following groups of 45 Sprague-Dawley rats each were created: control (healthy), vehicle (induced periodontitis), low- and high-dose-CBD with taurine which were each treated for an additional 21 days. Rat teeth were obtained and subjected to histomorphometric studies.The combination of the two significantly decreased the expression of inflammatory markers TNF-α and IL-1β and the amount of TRAP+ cells and resorbed pit areas. Among rats with P. gingivalis-induced periodontitis, the alveolar bone resorption levels, periodontal pocket depth, and distance between cementoenamel junction (CEJ) and alveolar bone crest (ABC) were significantly reduced after treatment with CBD and taurine, suggesting that combining CBD with taurine could be a novel therapeutic agent against periodontal disease.