1.Generation of the Ci1 Reporter Mouse Strain with Enhanced Fluorescence for Tissue Clearing Applications.
Manyu CHEN ; Youqi LI ; Juan HUANG ; Yilong WANG ; Hu ZHAO
Neuroscience Bulletin 2025;41(8):1317-1328
The advancement of tissue clearing technology has significantly propelled neuroscience research. Nevertheless, the fluorescent proteins used in traditional transgenic mouse strains were not specifically optimized for tissue clearing procedures, resulting in a substantial decrease in fluorescent intensity after clearing. In this study, we developed the Ci1 reporter mouse strain (where Ci stands for the Chinese Institute for Brain Research, CIBR) based on the bright red fluorescent protein mScarlet. The Ci1 reporter exhibits no fluorescence leakage in various organs or tissue types and can be readily crossed with multiple tissue-specific Cre lines. Compared to the Ai14 mouse strain, the Ci1 reporter strain demonstrates lower non-specific leakage, stronger fluorescence intensity in different tissues, and better preservation of fluorescence following tissue clearing treatment. The creation of the Ci1 reporter provides a more effective tool for both neuroscience and other biomedical research applications.
Animals
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Luminescent Proteins/metabolism*
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Mice, Transgenic
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Mice
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Red Fluorescent Protein
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Brain/metabolism*
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Genes, Reporter
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Fluorescence
2.Advances in endoplasmic reticulum stress-regulated cytokine secretion by immune cells
Ning XU ; Youqi ZHAO ; Lingzhi XU
Chinese Journal of Pathophysiology 2025;41(1):157-164
Within the lumen of the endoplasmic reticulum,secretory proteins are synthesized,processed,and transported.Disturbances in Ca2+or internal environmental homeostasis trigger the production of misfolded or unfolded proteins,thereby inducing endoplasmic reticulum stress(ERS).The ERS maintains the correct folding of secretory pro-teins by activating three signaling pathways in the unfolded protein response:inositol-requiring enzyme 1(IRE1),protein kinase R-like endoplasmic reticulum kinase(PERK),and activating transcription factor 6(ATF6).In disease states such as viral infections,autoimmune diseases,and inflammation,activated immune cells secrete large amounts of cytokines,which are small molecule secretory proteins.The ERS regulates the balance of its secretory pathways,thereby affecting cellular function.The precise mechanism by which ERS affects immune cells regulating cytokine secretion remains to be fully revealed.This article provides a comprehensive review of the research progress on the role and mechanism of ERS in regulating the secretion of cytokines by immune cells.
3.Advances in endoplasmic reticulum stress-regulated cytokine secretion by immune cells
Ning XU ; Youqi ZHAO ; Lingzhi XU
Chinese Journal of Pathophysiology 2025;41(1):157-164
Within the lumen of the endoplasmic reticulum,secretory proteins are synthesized,processed,and transported.Disturbances in Ca2+or internal environmental homeostasis trigger the production of misfolded or unfolded proteins,thereby inducing endoplasmic reticulum stress(ERS).The ERS maintains the correct folding of secretory pro-teins by activating three signaling pathways in the unfolded protein response:inositol-requiring enzyme 1(IRE1),protein kinase R-like endoplasmic reticulum kinase(PERK),and activating transcription factor 6(ATF6).In disease states such as viral infections,autoimmune diseases,and inflammation,activated immune cells secrete large amounts of cytokines,which are small molecule secretory proteins.The ERS regulates the balance of its secretory pathways,thereby affecting cellular function.The precise mechanism by which ERS affects immune cells regulating cytokine secretion remains to be fully revealed.This article provides a comprehensive review of the research progress on the role and mechanism of ERS in regulating the secretion of cytokines by immune cells.
4.Construction and empirical study of selection system for drug directory of county-level medical community based on multi-criteria decision analysis
Yinan GUO ; Xiuheng YU ; Yuqing XIE ; Shixin XIANG ; Huan LIN ; Youqi LONG ; Yu ZHAO
China Pharmacy 2025;36(8):914-919
OBJECTIVE To explore the construction of selection system for drug directory of the county-level medical community based on multi-criteria decision analysis,and provide decision-making basis for the selection of drug directory of medical community.METHODS Taking county-level medical community in Chongqing as an example,Delphi method and analytic hierarchy process were employed to construct the selection system for drug directory of the county-level medical community.Selected drugs were quantitatively scored based on the constructed index system,and the drug directory was selected according to the drug's comprehensive score.The implementation effect of the directory was then evaluated through questionnaire surveys one year after the implementation of the directory.RESULTS The expert authority coefficients of the two rounds of consultation were>0.8,with Kendall's W values of 0.213 and 0.196,respectively(P<0.001).Finally,the selection system for drug directory of the medical community was determined to include five evaluation dimensions:safety,effectiveness,economy,accessibility,and innovation,along with eight evaluation indicators.In the drug directory selected according to the above method,the proportions of centrally procured drugs,medical insurance drugs,and essential drugs had all increased compared to before the selection;the comprehensive scores of chemical drugs ranged from 50.25 to 96.31 scores,and the proportion of drugs scoring between 70 and 100 scores had increased from 78.06%before selection to 85.82%.Among them,antiparasitic drugs had the highest comprehensive scores,while drugs for the digestive tract and metabolism were the most numerous.The evaluation scores of each indicator and the comprehensive scores of drugs in the drug directory after the selection process increased significantly than before selection(P<0.05).CONCLUSIONS The selection system for drug directory of the county-level medical community constructed in this study is scientific,objective and operable.This process facilitates the promotion of standardized and unified management of drugs in the medical community.
5.Preliminary analysis of risk factors of tinnitus related to female menopause
Xin MA ; Youqi LU ; Yixin ZHAO ; Lisheng YU ; Wenpei BAI ; Jen-Tsung LAI ; Luoji E
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2024;59(9):916-921
Objective:To investigate the possible pathogenesis and possible risk factors of tinnitus related to female menopause.Methods:From April 2016 to October 2016, 59 female patients with menopausal syndrome were diagnosed in the menopause comprehensive management clinic. Tinnitus and menopause questionnaires were conducted, based on whether having tinnitus, those patients were divided into two groups: tinnitus group and no tinnitus group. Age, body mass index (BMI), Kupperman menopausal index (KMI) score, follicle-stimulating hormone (FSH) level of patients in the two groups were analyzed. Menopausal symptoms, related medical history and possible related factors of tinnitus were statistically analyzed.Results:A total of 59 cases were collected, 22 of which were accompanied by tinnitus. The incidence of idiopathic tinnitus was 35.1% (20/57) because 2 cases of thyroid related tinnitus with clear etiology were removed. Complete data were obtained from 17 of 20 patients with idiopathic tinnitus and 26 of 37 patients without tinnitus. Age, BMI, menopause KMI score, hormone level, menopause symptoms and possible factors related to tinnitus were statistically analyzed between the two groups, and the incidence of headache was statistically different between the two groups ( χ2=9.098, P=0.003), but no other factors were statistically significant( P>0.05). The severity of insomnia and tinnitus were further analyzed ( χ2=2.841, P=0.417), and there was no significant difference between the two groups. Conclusion:Headache history may be one of the high risk factors for the occurrence of menopausal tinnitus.
6.Molluscicidal effect and costs of spraying pyriclobenzuron with drones against Pomacea canaliculata
Xiaolin ZHAO ; Ying CHEN ; Yanyue HU ; Yanggeng XU ; Youqi WANG ; Dan LÜ ; Chuanxu WAN ; Yang SUN ; Liping DUAN ; Weisi WANG ; Shuijin HUANG
Chinese Journal of Schistosomiasis Control 2024;36(5):441-449
Objective To evaluate the molluscicidal effects and costs of spraying 20% suspension concentrate of pyricloben-zuron sulphate (SCPS) with drones against Pomacea canaliculata in paddy environments, so as to provide insights into the extensive applications of pyriclobenzuron against P. canaliculata. Methods On July 2022, a paddy field was selected from Nanchang City, Jiangxi Province as the study area, and 72 independent rectangular plots measuring 2 m × 1 m were allocated in the study area, with 1 m interval between each plot, and 20 P. canaliculata snails gently placed in each plot. The activity of 25% wettable powder of pyriclobenzuron sulphate (WPPS) by manual spraying at doses of 0.50, 1.00, 2.00 g/m2 and 4.00 g/m2 against P. canaliculata was tested in 54 plots, and manual spraying of 50% wettable powder of niclosamide ethanolamine salt (WPNES) at a dose of 0.10 g/m2 served as a chemical control, while manual spraying of the same volume of clean water served as a blank control, with 9 plots in each group. The activity of SCPS against P. canaliculata was tested in the remaining 18 plots. Based on the molluscicidal tests of WPPS, the molluscicidal effect of SCPS by manual spraying at doses of 0.20, 0.30, 0.40 g/m2 and 0.50 g/m2 against P. canaliculata was evaluated, and manual spraying of WPNES at a dose of 0.10 g/m2 served as a chemical control, while manual spraying of the same volume of clean water served as a blank control, with three plots in each group. On July 2023, 14 paddy fields with a mean living P. canaliculata density of > 5 snails/m2 were selected from Yujiang District, Yingtan City, Jiangxi Province for molluscicidal tests. Based on the molluscicidal effect of pyriclobenzuron against P. canaliculata in plots, the molluscicidal effects of WPPS by manual spraying at doses of 0.25, 0.50 g/m2 and 1.00 g/m2 and manual applications of WPPS at dose of 0.25, 0.50, 1.00 g/m2 and 2.00 g/m2 mixed with soil were tested, and manual spraying of 0.10 g/m2 WPNES served as a chemical control group, while manual spraying of the same volume of clean water served as a blank control, with one paddy field in each group. Based on the effect of pyriclobenzuron against P. canaliculata in plots, the activity of SCPS sprayed with drones at doses of 0.25 g/m2 and 0.50 g/m2 mixed in water at 2 kg/667 m2 and 4 kg/667 m2 was tested against P. canaliculata, and spraying of the same volume of clean water with drones served as a blank control. All P. canaliculata snails were captured 3 days and 7 days following chemical treatment in plots and paddy fields and identified for survival, and the mortality and corrected mortality of P. canaliculata snails were estimated. In addition, the areas of chemical treatment, amount of molluscicide use and labor costs of chemical treatment were estimated in molluscicidal tests in paddy fields, and the costs of chemical treatment for an area covering 667 m2 by drones and manual applications were calculated. Results The mortality of P. canaliculata snails was all 100% in plots 3 days and 7 days following spraying WPPS at doses of 0.50, 1.00, 2.00 g/m2 and 4.00 g/m2, and the mortality rates of P. canaliculata snails were 66.67% to 100.00% 3 days post-treatment with SCPS at various doses (χ2 = 277.897, P < 0.05) and 76.67% to 100.00% 7 days post-treatment (χ2 = 274.206, P < 0.05). The mortality rates of P. canaliculata snails were 98.19% to 100.00% 3 days post-treatment with WPPS at various doses in paddy fields. There was a significant difference in the mortality of P. canaliculata snails among WPPS treatment groups and controls (χ2 = 270.778, P < 0.05), and there were no significant differences between WPPS treatment groups and the chemical control group (all P values > 0.05), while there were significant differences in the mortality of P. canaliculata snails between WPPS treatment groups and the blank control group (all P values < 0.05). The mortality rates of P. canaliculata snails were 89.83% to 95.31% 3 days post-treatment with SCPS at various doses sprayed with drones, and there was a significant difference in the mortality of P. canaliculata snails among SCPS treatment groups and the blank control group (χ2 = 1 132.892, P < 0.05). There were no significant differences in the mortality of P. canaliculata snails among SCPS treatment groups or water mixture groups (all P values > 0.05), and there were significant differences in the mortality of P. canaliculata snails between SCPS treatment groups and the blank control group (all P values < 0.05). The mortality rates of P. canaliculata snails were 94.62% to 100.00% 7 days post-treatment with SCPS at various doses sprayed with drones, and there was a significant difference in the mortality of P. canaliculata snails among SCPS treatment groups and the blank control group (χ2 = 1 266.932, P < 0.05), with the highest mortality found following spraying 0.50 g/m2 SCPS mixed in 2 kg/667 m2 water with drones (P < 0.05). The costs of P. canaliculata snail control by drones and manually were 35.85 Yuan/667 m2 and 43.33 Yuan/667 m2; however, the snail control efficiency was 6.67 times higher by drones than by manual applications. Conclusions SCPS sprayed with drones is highly active against P. canaliculata snails in paddy fields. SCPS sprayed with drones is highly efficient and low in cost for P. canaliculata snail control in paddy fields, beaches and river courses.

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