1.Anti-neuroinflammatory Effects of 12-Dehydrogingerdione in LPS-Activated Microglia through Inhibiting Akt/IKK/NF-κB Pathway and Activating Nrf-2/HO-1 Pathway.
Dong ZHAO ; Ming Yao GU ; Jiu Liang XU ; Li Jun ZHANG ; Shi Yong RYU ; Hyun Ok YANG
Biomolecules & Therapeutics 2019;27(1):92-100
Ginger, one of worldwide consumed dietary spice, is not only famous as food supplements, but also believed to exert a variety of remarkable pharmacological activity as herbal remedies. In this study, a ginger constituent, 12-dehydrogingerdione (DHGD) was proven that has comparable anti-inflammatory activity with positive control 6-shogaol in inhibiting LPS-induced interleukin (IL)-6, tumor necrosis factor (TNF)-α, prostaglandin (PG) E₂, nitric oxide (NO), inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, without interfering with COX-1 in cultured microglial cells. Subsequent mechanistic studies indicate that 12-DHGD may inhibit neuro-inflammation through suppressing the LPS-activated Akt/IKK/NF-κB pathway. Furthermore, 12-DHGD markedly promoted the activation of NF-E2-related factor (Nrf)-2 and heme oxygenase (HO)-1, and we demonstrated that the involvement of HO-1 on the production of pro-inflammatory mediators such as NO and TNF-α by using a HO-1 inhibitor, Zinc protoporphyrin (Znpp). These results indicate that 12-DHGD may protect against neuro-inflammation by inhibiting Akt/IKK/IκB/NF-κB pathway and promoting Nrf-2/HO-1 pathway.
Dietary Supplements
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Ginger
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Heme Oxygenase (Decyclizing)
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Interleukins
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Microglia*
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Nitric Oxide
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Nitric Oxide Synthase
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Prostaglandin-Endoperoxide Synthases
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Spices
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Tumor Necrosis Factor-alpha
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Zinc
2.Abuse Potential of Synthetic Cannabinoids: AM-1248, CB-13, and PB-22
Kwang-Hyun HUR ; Shi-Xun MA ; Bo-Ram LEE ; Yong-Hyun KO ; Jee-Yeon SEO ; Hye Won RYU ; Hye Jin KIM ; Seolmin YOON ; Yong-Sup LEE ; Seok-Yong LEE ; Choon-Gon JANG
Biomolecules & Therapeutics 2021;29(4):384-391
Currently, the expanding recreational use of synthetic cannabinoids (SCBs) threatens public health. SCBs produce psychoactive effects similar to those of tetrahydrocannabinol, the main component of cannabis, and additionally induce unexpected pharmacological side effects. SCBs are falsely advertised as legal and safe, but in reality, SCB abuse has been reported to cause acute intoxication and addictive disorders. However, because of the lack of scientific evidence to elucidate their dangerous pharmacological effects, SCBs are weakly regulated and continue to circulate in illegal drug markets. In the present study, the intravenous self-administration (IVSA) paradigm was used to evaluate the abuse potential of three SCBs (AM-1248, CB-13, and PB-22) in rats. All three SCBs maintained IVSA with a large number of infusions and active lever presses, demonstrating their reinforcing effects.The increase of active lever presses was particularly significant during the early IVSA sessions, indicating the reinforcementenhancing effects of the SCBs (AM-1248 and CB-13). The number of inactive lever presses was significantly higher in the SCB groups (AM-1248 and CB-13) than that in the vehicle group, indicating their impulsive effects. In summary, these results demonstrated that SCBs have distinct pharmacological properties and abuse potential.
3.Abuse Potential of Synthetic Cannabinoids: AM-1248, CB-13, and PB-22
Kwang-Hyun HUR ; Shi-Xun MA ; Bo-Ram LEE ; Yong-Hyun KO ; Jee-Yeon SEO ; Hye Won RYU ; Hye Jin KIM ; Seolmin YOON ; Yong-Sup LEE ; Seok-Yong LEE ; Choon-Gon JANG
Biomolecules & Therapeutics 2021;29(4):384-391
Currently, the expanding recreational use of synthetic cannabinoids (SCBs) threatens public health. SCBs produce psychoactive effects similar to those of tetrahydrocannabinol, the main component of cannabis, and additionally induce unexpected pharmacological side effects. SCBs are falsely advertised as legal and safe, but in reality, SCB abuse has been reported to cause acute intoxication and addictive disorders. However, because of the lack of scientific evidence to elucidate their dangerous pharmacological effects, SCBs are weakly regulated and continue to circulate in illegal drug markets. In the present study, the intravenous self-administration (IVSA) paradigm was used to evaluate the abuse potential of three SCBs (AM-1248, CB-13, and PB-22) in rats. All three SCBs maintained IVSA with a large number of infusions and active lever presses, demonstrating their reinforcing effects.The increase of active lever presses was particularly significant during the early IVSA sessions, indicating the reinforcementenhancing effects of the SCBs (AM-1248 and CB-13). The number of inactive lever presses was significantly higher in the SCB groups (AM-1248 and CB-13) than that in the vehicle group, indicating their impulsive effects. In summary, these results demonstrated that SCBs have distinct pharmacological properties and abuse potential.
4.Severe Tricuspid Insufficiency after Correction of Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery(ALCAPA).
Man Jong BAEK ; Woong Han KIM ; Sam Se OH ; Jae Wook RYU ; Joon Hyuk KONG ; Cheong LIM ; Soo Cheol KIM ; Jae Young LEE ; Yang Bin JEON ; Seog Ki LEE ; Chang Ha LEE ; Wook Sung KIM ; Chan Young NA ; Young Tak LEE ; Yong Woong YOON ; Young Kwang PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(9):724-728
We report a case of an 8 years and 11 month-old male patient who had developed severe tricuspid insufficiency(TI) after correction of anomalous origin of the left coronary artery from the pulmonary artery(ALCAPA). Transthoracic echocardiogram and coronary angiography confirmed ALCAPA, ischemic mitral regurgitation and trivial TI. He underwent direct reimplantation of the left coronary artery to the aortic root by using additional cannulation at the main pulmonary artery for arterial inflow and cardioplegia delivery to the left coronary artery. After the correction of ALCAPA, transesophageal echocardiogram(TEE) revealed good antegrade flow at the aortic implantation site of the left coronary artery and severe TI(Gr III-IV/IV). Cardiopulmonary bypass was reestablished and tricuspid valve was repaired with Kay-type annuloplasty, artificial chordae formation and chordal shortening plasty. The postrepair TEE revealed trivial to mild TI.
Bland White Garland Syndrome
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Cardiopulmonary Bypass
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Catheterization
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Coronary Angiography
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Coronary Vessels*
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Heart Arrest, Induced
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Humans
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Infant
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Male
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Mitral Valve Insufficiency
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Pulmonary Artery
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Replantation
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Tricuspid Valve
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Tricuspid Valve Insufficiency