Ferroptosis and neuroinflammation contribute to the development of Alzheimer's disease(AD). Isoforsythiaside(IFY)is a phenylethanoid glycoside isolated from the dried fruit of Forsythia suspensa(Thunb.)Vahl that h...Ferroptosis and neuroinflammation contribute to the development of Alzheimer's disease(AD). Isoforsythiaside(IFY)is a phenylethanoid glycoside isolated from the dried fruit of Forsythia suspensa(Thunb.)Vahl that has been confirmed to improve the memory and cognitive abilities of APP/PS1 mice in our previous study. The purpose of this study was to explore the anti-ferroptosis and anti-neuroinflammatory properties of IFY-mediated neuroprotection. In APP/PS1 mice, erastin-damaged HT22 cells, and LPS-exposed BV2 cells, the neuroprotective effects against ferroptosis and neuroinflammation were investigated using immunohistochemistry, label-free proteomics, western blot, ELISA, MTT, fluorescence, and TEM. IFY alleviated the expression levels of NO, IL-6, and IL-1β in LPS-exposed BV2 cells and improved the morphology of mitochondria in erastin-damaged HT22 cells. Additionally, IFY upregulated the expression levels of GPX4, FTH, FTL, p-GSK-3β, Nrf2, and NQO1, and downregulated the expression of TFR1, DMT1, p-Fyn, GFAP, p-IKKα+β, p-IκBα, p-NF-κB, and pro-inflammatory factors in the brains of APP/PS1 mice and erastin-damaged HT22 cells. In conclusion, IFY inhibits ferroptosis and neuroinflammation in erastin-damaged HT22 cells and APP/PS1 mice, at least partially by regulating the activation of Nrf2 and NF-κB signaling. IFY may prevent ferroptosis and neuroinflammation in AD and provide a new treatment strategy for AD.展开更多
Chronic alcoholism can damage the cytoskeleton and aggravate neurological deficits. However, the effect of chronic alcoholism on hippocampal neurons remains unclear. In this study, a model of chronic alcoholism was es...Chronic alcoholism can damage the cytoskeleton and aggravate neurological deficits. However, the effect of chronic alcoholism on hippocampal neurons remains unclear. In this study, a model of chronic alcoholism was established in rats that were fed with 6% alcohol for 42 days. Endogenous hydrogen sulfide content and cystathionine-beta-synthase activity in the hippocampus of rats with chronic alcoholism were significantly increased, while F-actin expression was decreased. Hippocampal neurons in rats with chronic alcoholism appeared to have a fuzzy nuclear mem- brane, mitochondrial edema, and ruptured mitochondrial crista. These findings suggest that chronic alcoholism can cause learning and memory decline in rats, which may be associated with the hydrogen sulfide/cystathionine-beta-synthase system, mitochondrial damage and reduced expression of F-actin.展开更多
Objective: To explore the clinical significance of the examination of serum CA125 level of patients with metastatic bladder carcinoma. Methods: Electrochemiluminescence technique was used to examine the serum CA125 co...Objective: To explore the clinical significance of the examination of serum CA125 level of patients with metastatic bladder carcinoma. Methods: Electrochemiluminescence technique was used to examine the serum CA125 concentration of 58 cases with metastatic bladder cancer. 30 cases of superficial bladder cancer and 8 cases of other urological diseases were collected as the control group. Results: Serum CA125 level in 39 (67.2%) out of 58 cases ranged from 36.7 U/mL to 1485.6 U/mL (mean 498.3 U/mL), being higher than normal (< 35 U/mL). Serum CA125 level of metastatic bladder cancer patients was 324.5 U/mL, significantly higher than that in control group (P < 0.001). Serum CA125 level of 10 patients after transure- thral resection operation was significantly lower than that before operation (P < 0.05). Serum CA125 level of 16 patients who refused further treatment significantly increased from 450.4 U/mL, to 505.8 U/mL (P = 0.041) 3 months after discharge from the hospital. Serum CA125 level of 17 patients significantly decreased from 475.8 U/L to 237.9 U/mL (P < 0.001) after bilateral iliac-arterial embolism treatment. Conclusion: CA125 may be a valuable marker for the judgment of advanced metastatic bladder cancer.展开更多
Bamboos not only provide socio-economic benefits to communities within the region,but also provide ecosystem services such as soil-water conservation,stabilization of sandy soils and restoration of soil nutrients.Bamb...Bamboos not only provide socio-economic benefits to communities within the region,but also provide ecosystem services such as soil-water conservation,stabilization of sandy soils and restoration of soil nutrients.Bambusicolous ascomycetes refer to ascomycetous fungi living on any substrate of bamboo.As the largest group of fungi on bamboo,they play a significant ecological value in species composition and the structure of the fungal community,circulation of materials and energy flow of nutritional elements.In an effort to document the bambusicolous Ascomycota found in China,we assessed all major sources of academic literature,journal papers,and the USDA database(https://nt.ars-grin.gov/fungaldatabases/fungushost/fungushost.cfm)for reports of these fungi from China.As a result,we produced a systematic and comprehensive checklist of bambusicolous Ascomycota in China.Current names of fungi,bamboo host name,bamboo substrate,details of collected localities,references and latest classification for every bambusicolous ascomycete in China are also provided.In addition,we focused on the species richness of bambusicolous Ascomycota in China with an emphasis on southwest China.展开更多
基金supported by the Jilin Scientific and Technological Development Program (20191102027YY,20200708037YY and 20200708068YY)the Special Project for Health of Jilin Province (2020SCZT077)+1 种基金Science and Technology Research Project,Education Department of Jilin Province of China (JJKH20200322KJ)Innovation Capacity Building Project of Jilin Provincial Development and Reform Commission (2021C035-6)。
文摘Ferroptosis and neuroinflammation contribute to the development of Alzheimer's disease(AD). Isoforsythiaside(IFY)is a phenylethanoid glycoside isolated from the dried fruit of Forsythia suspensa(Thunb.)Vahl that has been confirmed to improve the memory and cognitive abilities of APP/PS1 mice in our previous study. The purpose of this study was to explore the anti-ferroptosis and anti-neuroinflammatory properties of IFY-mediated neuroprotection. In APP/PS1 mice, erastin-damaged HT22 cells, and LPS-exposed BV2 cells, the neuroprotective effects against ferroptosis and neuroinflammation were investigated using immunohistochemistry, label-free proteomics, western blot, ELISA, MTT, fluorescence, and TEM. IFY alleviated the expression levels of NO, IL-6, and IL-1β in LPS-exposed BV2 cells and improved the morphology of mitochondria in erastin-damaged HT22 cells. Additionally, IFY upregulated the expression levels of GPX4, FTH, FTL, p-GSK-3β, Nrf2, and NQO1, and downregulated the expression of TFR1, DMT1, p-Fyn, GFAP, p-IKKα+β, p-IκBα, p-NF-κB, and pro-inflammatory factors in the brains of APP/PS1 mice and erastin-damaged HT22 cells. In conclusion, IFY inhibits ferroptosis and neuroinflammation in erastin-damaged HT22 cells and APP/PS1 mice, at least partially by regulating the activation of Nrf2 and NF-κB signaling. IFY may prevent ferroptosis and neuroinflammation in AD and provide a new treatment strategy for AD.
基金supported by the National Natural Science Foundation of China,No.81471351Key Project of the Science and Technology Foundation of Henan Provincial Education Department of China,No.12A320013+1 种基金the Funds of Henan Province Health Technology Talents Innovative Project,No.3052the Open Fund of Henan Provincial Mental Hospital,Henan Key Laboratory of Biological Psychiatry
文摘Chronic alcoholism can damage the cytoskeleton and aggravate neurological deficits. However, the effect of chronic alcoholism on hippocampal neurons remains unclear. In this study, a model of chronic alcoholism was established in rats that were fed with 6% alcohol for 42 days. Endogenous hydrogen sulfide content and cystathionine-beta-synthase activity in the hippocampus of rats with chronic alcoholism were significantly increased, while F-actin expression was decreased. Hippocampal neurons in rats with chronic alcoholism appeared to have a fuzzy nuclear mem- brane, mitochondrial edema, and ruptured mitochondrial crista. These findings suggest that chronic alcoholism can cause learning and memory decline in rats, which may be associated with the hydrogen sulfide/cystathionine-beta-synthase system, mitochondrial damage and reduced expression of F-actin.
文摘Objective: To explore the clinical significance of the examination of serum CA125 level of patients with metastatic bladder carcinoma. Methods: Electrochemiluminescence technique was used to examine the serum CA125 concentration of 58 cases with metastatic bladder cancer. 30 cases of superficial bladder cancer and 8 cases of other urological diseases were collected as the control group. Results: Serum CA125 level in 39 (67.2%) out of 58 cases ranged from 36.7 U/mL to 1485.6 U/mL (mean 498.3 U/mL), being higher than normal (< 35 U/mL). Serum CA125 level of metastatic bladder cancer patients was 324.5 U/mL, significantly higher than that in control group (P < 0.001). Serum CA125 level of 10 patients after transure- thral resection operation was significantly lower than that before operation (P < 0.05). Serum CA125 level of 16 patients who refused further treatment significantly increased from 450.4 U/mL, to 505.8 U/mL (P = 0.041) 3 months after discharge from the hospital. Serum CA125 level of 17 patients significantly decreased from 475.8 U/L to 237.9 U/mL (P < 0.001) after bilateral iliac-arterial embolism treatment. Conclusion: CA125 may be a valuable marker for the judgment of advanced metastatic bladder cancer.
文摘Bamboos not only provide socio-economic benefits to communities within the region,but also provide ecosystem services such as soil-water conservation,stabilization of sandy soils and restoration of soil nutrients.Bambusicolous ascomycetes refer to ascomycetous fungi living on any substrate of bamboo.As the largest group of fungi on bamboo,they play a significant ecological value in species composition and the structure of the fungal community,circulation of materials and energy flow of nutritional elements.In an effort to document the bambusicolous Ascomycota found in China,we assessed all major sources of academic literature,journal papers,and the USDA database(https://nt.ars-grin.gov/fungaldatabases/fungushost/fungushost.cfm)for reports of these fungi from China.As a result,we produced a systematic and comprehensive checklist of bambusicolous Ascomycota in China.Current names of fungi,bamboo host name,bamboo substrate,details of collected localities,references and latest classification for every bambusicolous ascomycete in China are also provided.In addition,we focused on the species richness of bambusicolous Ascomycota in China with an emphasis on southwest China.