1.Effect of Modified Chaihu Shugansan on CaMKⅡ/CREB Signaling Pathway in Rats with Myocardial Ischemia and Depression
Fen WAN ; Xiaohong LI ; Ying CHEN ; Yangyu PAN ; Yanna LUO ; Fangge LU ; Chuncheng ZHENG ; Pengyun KONG ; Chengxiang WANG ; Liqiang YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(9):1-11
ObjectiveTo observe the effects of modified Chaihu Shugansan on the calmodulin-dependent protein kinase Ⅱ(CaMKⅡ)/cAMP-response element binding protein (CREB) signaling pathway in the hippocampus and heart tissue of a rat model with myocardial ischemia and depression and explore the mechanism by which this formula prevents and treats coronary heart disease combined with depression. MethodsThe model of myocardial ischemia combined with depression was established by high-fat diet, intraperitoneal injection of isoproterenol (ISO), and chronic unpredictable mild stress (CUMS). A total of 108 SD male rats were randomly divided into normal group, model group, high (23.4 g·kg-1), medium (11.7 g·kg-1), and low (5.85 g·kg-1) dose groups of modified Chaihu Shugansan, CaMKⅡ inhibitor (KN93) group, and KN93 + high, medium, and low dose groups of modified Chaihu Shugansan, with 12 rats in each group. From the first day of modeling to the end of modeling, drugs were administered once a day. In the seventh and eighth weeks, the KN93 group and the KN93 + high, medium, and low dose groups of modified Chaihu Shugansan were intraperitoneally injected with KN93 three times weekly. At the end of the eighth week, behavioral tests including sucrose preference, open field, and elevated plus maze were conducted. Electrocardiogram (ECG) lead Ⅱ changes were observed in each group of rats, and hematoxylin-eosin (HE) staining was performed to observe changes in heart tissue. Serum levels of triglycerides (TG), total cholesterol (TC), high-density lipoprotein (HDL), low-density lipoprotein (LDL), and lactate dehydrogenase (LDH) were measured by using an enzyme-labeled instrument. Creatine kinase (CK) and creatine kinase-MB (CK-MB) were detected by ultraviolet spectrophotometry, while serum monocyte chemoattractant protein-1 (MCP-1) was measured by enzyme-linked immunosorbent assay (ELISA). Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression of CaMKⅡ and CREB in hippocampal and heart tissue, and Western blot was performed to assess protein expression of CaMKⅡ, phosphorylated (p)-CaMKⅡ, CREB, and p-CREB. ResultsCompared to the normal group, the model group showed significant reductions in sucrose preference rate, total activity distance in the open field, number of entries into the center area of the open field, and percentage of entries into the open arms of the elevated plus maze (P<0.01). The ECG showed ST-segment elevation, and HE staining showed serious degeneration of myocardial fibers, disordered arrangement, and infiltration of a large number of inflammatory cells. In addition, serum TC and LDL levels increased (P<0.01), and HDL level decreased (P<0.01). CK, CK-MB, LDH, and MCP-1 levels significantly increased (P<0.05, P<0.01). The mRNA expression of CaMKⅡ and CREB and the protein expression of p-CaMKⅡ and p-CREB decreased in the hippocampal tissue (P<0.05, P<0.01), but those increased in the heart tissue (P<0.01). Compared to the model group, the high, medium, and low dose groups of modified Chaihu Shugansan showed improvements in these abnormalities. The KN93 group had reduced sucrose preference, total activity distance in the open field, number of entries into the center area of the open field, and percentage of entries into the open arms of the elevated plus maze (P<0.01), as well as decreased serum CK, CK-MB, LDH, and MCP-1 levels (P<0.05, P<0.01). KN93 also reduced ST-segment elevation, alleviated the degeneration degree of myocardial fibrosis, and lowered inflammatory cell infiltration. The mRNA expression of CaMKⅡ and CREB and the protein expression of p-CaMKⅡ and p-CREB in both the hippocampal and heart tissue were reduced (P<0.05, P<0.01). The KN93 + high, medium, and low dose groups of modified Chaihu Shugansan showed further improvements in these abnormalities compared to the KN93 group. ConclusionThe modified Chaihu Shugansan exerts antidepressant and myocardial protective effects in rats with myocardial ischemia and depression, possibly related to bidirectional regulation of the CaMKⅡ/CREB signaling pathway, with the high-dose modified Chaihu Shugansan showing the best effects.
2.Feasibility of acceptance of multiple accelerators using Elekta AGL standard procedures
Liang ZHAO ; Guiyuan LI ; Xiaohong WAN ; Xinyuan CHEN ; Kuo MEN ; Jianrong DAI ; Yuan TIAN
Chinese Journal of Radiation Oncology 2024;33(3):244-249
Objective:To verify the feasibility of using Elekta accelerated go live (AGL) standard process for the acceptance of multiple accelerators.Methods:The beams of three accelerators were adjusted by PTW Beamscan three-dimensional water tank to reach the AGL standard. Dose verification was performed for three accelerators that met AGL standards. A simple field test example from Cancer Hospital Chinese Academy of Medical Sciences was used to compare the MapCheck 3 surface dose measurement results with the surface dose calculated by the same accelerator model. Images of 10 patients including head and neck, esophagus, breast, lung and rectum were randomly selected. volumetric-modulated arc therapy (VMAT) and intensity modulated radiation therapy (IMRT) treatment techniques were used for planning design, and the measured dose of ArcCheck was compared with the planned dose calculated by the same accelerator model. One-way ANOVA was used to statistically analyze the passing rates of two-dimensional and three-dimensional dose verification.Results:The 6 MV X-ray percentage depth dose at 10 cm underwater (PDD 10) of three accelerators was 67.45%, 67.36%, 67.47%, and the maximum deviation between the three accelerators was 0.11%. The 6 MV flattenting filter free (FFF) mode X-ray PDD 10 was 67.33%, 67.20%, 67.20%, and the maximum deviation between the three accelerators was 0.13%. All required discrete point doses on each energy 30 cm×30 cm Profile spindle of the three accelerator X-rays deviated less than ±1% from the standard data. Absolute γ analysis was performed on the results of MapCheck 3 two-dimensional dose matrix validation. Under the 10% threshold of 2 mm/3% standard, the average passing rate of the test cases in Cancer Hospital Chinese Academy of Medical Sciences was above 99%, and the difference was not statistically significant ( P>0.05). Absolute γ analysis was performed on the ArcCheck verification results. Under the 10% threshold, the pass rate of 2 mm/3% was all above 95%, the maximum average passing rate of the three accelerators with different energy and different treatment techniques was 0.28% (6 MV, VMAT), 0.19%(6 MV FFF, VMAT), 0.56% (6 MV, IMRT) and 0.05% (6 MV FFF, IMRT), and the difference was not statistically significant ( P>0.05). Conclusion:Compared with traditional accelerator acceptance process, the acceptance time of each accelerator is shortened by 4-6 weeks by using the AGL standard process, and the radiotherapy plan of patients can be interchangeably executed among different accelerators.
3.Establishment and application of family-centred health education programe for family caregivers of Autistic children
Xiaohong WAN ; Xiaoqing KANG ; Shunli CHEN ; Qulian GUO
Modern Clinical Nursing 2024;23(1):35-42
Objective To propose a family-centred health education program for family caregivers of Autistic children and investigate its clinical value.Methods Delphi method was used to establish a family-centred Autistic children care program for family caregivers looking after the Autistic children,which involved two rounds of expert consultation.The pre-and post-control method for different cases was employed in the study.Forty Autistic caregivers in our hospital from January 2022 to October 2022 were assigned to the control group and another 40 in our hospital from November 2022 to January 2023 were assigned to the observation group.The family caregivers of Autistic children in the control group received traditional care education,while those in the observation group was managed with the family-centred Autistic children health education program.The two groups were compared in terms of care burden,knowledge of health education,and evaluation of clinical symptom of Autistic children.Results The expert authority coefficient of the first round of expert consultation was 0.875 respectively and those in the second round was 0.900,respectively.The coefficient of variation of the coordination degree of each index was 0.04-0.20.Kendalls W scores of the two rounds were 0.794 and 0.786,respectively.A health education program for family-centred Autistic children caregiver was established to consist of three subjects:caregiver training,family-centred parental care and activation of positive emotions of autistic caregivers.Autism caregivers in both groups had completed the study.In comparison with the control group,the care burden of the observation group was significantly lower,the knowledge of health education was significantly higher,and the evaluation of children's clinical symptoms was better among the family caregivers of autistic children in the observation group(all P<0.05).Conclusions The family-centred autistic children care program for family caregivers is scientific and applicable.It is conducive to providing health education guidance for family caregivers of Autistic children,effectively reducing the care burden and enhancing the knowledge of health education.
4.iTRAQ-based proteomics reveals the mechanism of action of Yinlai decoction in treating pneumonia in mice consuming a high-calorie diet
Qianqian Li ; Tiegang Liu ; Chen Bai ; Xueyan Ma ; Hui Liu ; Zi ; an Zheng ; Yuxiang Wan ; He Yu ; Yuling Ma ; Xiaohong Gu
Journal of Traditional Chinese Medical Sciences 2024;11(1):21-32
Objective:
To uncover the underlying mechanisms of action of the Yinlai decoction on high-calorie diet-induced pneumonia through proteomics analysis.
Methods:
Based on the Gene Expression Omnibus (GEO) database, lung tissue samples from normal and high-fat diet (HFD) fed mice in the GSE16377 dataset were selected as test cohorts to identify differentially expressed genes and conduct bioinformatics analyses. In the animal experiments, mice were randomly divided into the control (N), high-calorie diet pneumonia (M), and Yinlai decoction treatment (Y) groups. Mice in the M group received high-calorie feed and a 0.5 mg/mL lipopolysaccharide solution spray for 30 min for 3 d. The mice in the Y group were intragastrically administered 2 mL/10 g Yinlai decoction twice daily for 3 d. Pathological evaluation of the lung tissue was performed. Differentially expressed proteins (DEPs) in the lung tissue were identified using quantitative proteomics and bioinformatics analyses. The drug-target relationships between Yinlai decoction and core DEPs in the lung tissue were verified using AutoDock Vina and Molecular Graphics Laboratory (MGL) Tools. DEPs were verified by western blot.
Results:
GEO data mining showed that an HFD altered oxidative phosphorylation in mouse lung tissue. The Yinlai decoction alleviated pathological damage to lung tissue and pneumonia in mice that were fed a high-calorie diet. A total of 47 DEPs were identified between the Y and M groups. Enrichment analysis revealed their association with energy metabolism pathways such as the tricarboxylic acid cycle (TCA) and oxidative phosphorylation. The protein-protein interaction network revealed that Atp5a1, Pdha1, and Sdha were the target proteins mediating the therapeutic effects of Yinlai decoction. Molecular docking results suggested that the mechanism of the therapeutic effect of Yinlai decoction involves the binding of brassinolide, praeruptorin B, chrysoeriol, and other components in Yinlai decoction to Atp5a1.
Conclusion
The Yinlai decoction alleviated lung tissue damage and pneumonia in mice that were fed a high-calorie diet by regulating the TCA and oxidative phosphorylation. Our study highlights the importance of a healthy diet for patients with pneumonia and provides a scientific basis for the prevention and treatment of pneumonia through dietary adjustments.
5.Research progress on pyroptosis in sepsis-associated encephalopathy
Yue YIN ; Yushan DUAN ; Xiaohong WAN
Chongqing Medicine 2024;53(22):3490-3494,3500
Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infec-tion.Sepsis-associated encephalopathy(SAE)is one of the common complications of sepsis patients,which can be seen in 70%of sepsis patients,mainly manifested by sepsis-related cognitive dysfunction,and its pathogen-esis is complex,mainly including mitochondrial dysfunction,oxidative stress,neuroinflammation,autophagy,etc.Pyroptosis is a special type of programmed cell death that is involved in the regulation of inflammation and immune responses.Neuronal pyroptosis plays an important role in the pathogenesis of SAE.This paper re-views the pathologic mechanism,physiological mechanism,related signaling pathways and potential molecular regulatory mechanisms of neurons pyroptosis in SAE in order to provide the new ideas for the prevention and treatment of SAE.
6.Application of nursing intervention based on the information-motivation-behavioral skills model in perioperative nursing of children with concealed penis phalloplasty
Ping ZHENG ; Zhihua HONG ; Xiaohong ZHU ; Li WAN ; Lin LIU
Chinese Journal of Modern Nursing 2024;30(19):2614-2619
Objective:To explore the application effect of nursing intervention based on the information-motivation-behavioral skills (IMB) model in perioperative nursing of children undergoing concealed penis phalloplasty.Methods:Using the convenient sampling method, a total of 86 children who were admitted to and underwent concealed penis phalloplasty in Jiaxing Maternity and Child Health Care Hospital were selected as the research objects from January 2022 to January 2023. They were randomly divided into the observation group and the control group, with 43 cases in each group. The control group was treated with routine nursing mode, and the observation group was treated with IMB model nursing intervention based on routine nursing. The heart rate (HR) and mean arterial pressure (MAP) levels of children in the two groups were recorded at five time points, such as after preoperative visit (T 0), when leaving the preparation room period (T 1), before anesthesia induction (T 2), when leaving the anesthesia recovery room (T 3) and 24 h postoperative follow-up (T 4). The children were evaluated using Children's Emotional Adjustment Scale Preschool Version (CEAS-P), Modified Yale Preoperative Anxiety Scale (m-YPAS), the Induction Compliance Checklist (ICC) and Pediatric Anesthesia Emergence Delirium (PAED) . Results:After intervention, the CEAS-P scores in the observation group were higher than those in the control group, while the m-YPAS, ICC and PAED scores were lower than those in the control group, and the differences were statistically significant (all P<0.01). There were statistically significant differences in HR and MAP levels of children undergoing concealed penis phalloplasty between the two groups at different time points ( P<0.01). HR and MAP levels at T 0, T 1, T 2, T 3 and T 4 in observation group were lower than those in control group, and the differences were statistically significant (all P<0.05). There was statistically significant differences in the interaction between nursing intervention and HR and MAP over time ( P<0.01) . Conclusions:Nursing intervention based on the IMB model can effectively relieve the psychological anxiety of children with concealed penis phalloplasty in perioperative period and improve surgical safety.
7.Role of complement C3a receptor in the pathogenesis of diabetic nephropathy in db/db mice
Enqin LIN ; Xiaohong ZHANG ; Mengjie WENG ; Jing ZHEN ; Jianxin WAN
Chinese Journal of Nephrology 2024;40(6):465-474
Objective:To investigate the role of complement C3a receptor in the diabetic nephropathy pathogenesis of db/db mice, and to provide a new target for prevention and treatment of diabetic nephropathy.Methods:Twelve 8-week-old male mice with type 2 diabetes mellitus (db/db mice) and 6 wild-type (db/m) mice were reared in the special pathogen free environment. The mice were grouped into db/m group, db/db group and C3a receptor antagonist group, with 6 mice in each group. db/db model mice were intraperitoneally injected with C3a receptor antagonist (SB290157, 10 mg/kg) once every two days for 8 weeks in C3a receptor antagonist group. Blood and urine samples were collected, and body weight of mice, fasting blood glucose, serum creatinine, blood urea nitrogen, urinary microalbumin/urinary creatinine and urinary N-acetyl-β- D-glucosaminidase (NAG) were detected. Renal tissues were collected, and HE, PAS and Masson stainings were used to observe the pathological changes. Immunohistochemistry, immunofluorescence and Western blotting were used to detect the protein expression levels of C3 and C3a receptor. Western blotting was used to analyze the protein expression levels of kidney injury molecule-1 (Kim-1), α-smooth muscle actin (α-SMA), zonula occluden-1 (ZO-1), vimentin and E-cadherin in renal tissues. Immunofluorescence was used to analyze the protein expression levels and distribution of α-SMA, ZO-1 and Kim-1, and immunohistochemistry was used to analyze the protein expression levels of interleukin-1 (IL-1) and tumor necrosis factor-α (TNF-α). TUNEL assay was used to detect apoptotic cells in renal tissues. Results:Compared with db/m group, body weight, fasting blood glucose, urinary microalbumin/urinary creatinine and urinary NAG in db/db group were significantly higher, while these indicators in C3a receptor antagonist group were slightly lower than those in db/db group (all P<0.01). There were no significant differences in serum creatinine and blood urea nitrogen among the three groups (all P>0.01). Compared with db/m group, db/db group had glomerular hypertrophy, necrosis and exfoliation of renal tubular epithelial cells, and dilation of renal tubules, and C3 and C3a receptor protein expression levels were higher (both P<0.01). Compared with db/db group, C3a receptor antagonist group had less glomerular lesions, mild necrosis of renal tubular epithelial cells and less tubular dilation. Compared with db/m group, the protein expression levels of Kim-1, IL-1 and TNF-α in kidney tissues of db/db group were significantly higher, while Kim-1, IL-1 and TNF-α in C3a receptor antagonist group were significantly lower than those in db/db group (all P<0.01). Compared with db/m group, the protein expression levels of α-SMA and vimentin of renal tubular epithelial cells in db/db group were significantly higher, while the protein expression levels of ZO-1 and E-cadherin were significantly lower (all P<0.01). Compared with db/db group, the protein expression levels of α-SMA and vimentin of renal tubular epithelial cells in C3a receptor antagonist group were significantly lower, and the protein expression levels of ZO-1 and E-cadherin were significantly higher (all P<0.01). Compared with db/m group, the number of apoptotic cells of kidney tissues in db/db group was increased, while the number of apoptotic cells in C3a receptor antagonist group was reduced compared with db/db group. Conclusions:The expression levels of C3 and C3a receptor of kidney tissues in db/db mice are significantly increased. Antagonistic C3a receptor can reduce the body weight, blood glucose, urinary microalbumin/urinary creatinine and urinary NAG, alleviate renal pathological injury, inhibit renal tissue inflammation, apoptosis and renal tubule epithelial-mesenchymal transition in db/db mice.
8.Screening of diabetes among high-risk populations in Baoshan District
DING Chenghui ; WU Cui ; XUE Kun ; LI Xiaohong ; WAN Jinbao ; CHEN Qiuyan ; ZHU Xiaoxiang
Journal of Preventive Medicine 2023;35(6):509-513
Objective:
To investigate the prevalence of diabetes among individuals at high risk of diabetes in Baoshan District, Shanghai Municipality, so as to provide insights into community-based diabetes management.
Methods:
Permanent residents at ages of 35 years and older were sampled from Baoshan District using a multistage stratified cluster sampling method, and residents at a high risk of diabetes were screened using the Form for Risk Assessment of Diabetes among Community Residents in Shanghai Municipality. Participants' demographics, disease history and history of medication were collected using questionnaire surveys, and height, body weight, waist circumference, hip circumference, and blood pressure were measured. Diabetes was screened using fasting blood glucose and glucose tolerance test. The factors affecting the development of diabetes were identified among high-risk residents for diabetes using a multivariable logistic regression model.
Results:
A total of 3 107 residents at a high risk for diabetes were enrolled, including 1 165 men (37.50%) and 1 942 women (62.50%) with a mean age of (63.58±9.77) years. The prevalence of diabetes was 21.69% among the study subjects, and multivariable logistic regression analysis showed that men (OR=1.689, 95%CI: 1.357-2.104), age (40 years-, OR=4.833, 95%CI: 1.036-22.553; 50 years-, OR=2.627, 95%CI: 1.432-4.819; 60 years-, OR=1.551, 95%CI: 1.119-2.150; 70 years and older, OR=1.579, 95%CI: 1.232-2.025); high school/technical secondary school (OR=2.677, 95%CI: 1.636-4.380), overweight/obesity (OR=1.891, 95%CI: 1.447-2.472), hypertension (OR=1.306, 95%CI: 1.049-1.626), dyslipidemia (OR=1.428, 95%CI: 1.114-1.831), history of impaired glucose regulation (OR=15.161, 95%CI: 11.827-19.434) and family history of type 2 diabetes mellitus (OR=2.092, 95%CI: 1.619-2.704) caused an increased risk of diabetes among residents at a high risk diabetes.
Conclusions
The prevalence of diabetes was 21.69% among high-risk populations of diabetes in Baoshan District. Gender, age, educational level, overweight/obesity, hypertension, dyslipidemia, history of impaired glucose regulation and family history of type 2 diabetes mellitus are factors affecting the development of diabetes among high-risk populations.
9.Intermittent hypoxia can improve myocardial energy metabolism
Xiaohong DANG ; Chuan HUANG ; Chunxiao WAN
Chinese Journal of Physical Medicine and Rehabilitation 2023;45(1):12-17
Objective:To explore any effect of intermittent hypoxia (IH) on myocardial energy metabolism and its mechanism.Methods:Twenty-one male Sprague-Dawley rats were randomly divided into a sham operation group, a myocardial infarction group and an observation group. The latter two groups received occlusion of the left anterior descending coronary artery. The observation group then lived in an hypoxic environment intermittently for 4 hours/day, 5 days/week for four weeks, while the other 2 groups were exposed to a normal level of oxygen. The ejection fraction of the left ventricle (LVEF) was measured at 1 week after the modeling and 4 weeks after the start of the intervention. Also at that point myocardial fibrosis, mitochondrial structure, ATP content, and the protein expressions of adenosine monophosphate-activated protein kinase alpha1 (AMPKα1) and sirtuins protein family member 3 (SIRT3) were assessed in all three groups.Results:A significant decrease in the LVEF, the number of mitochondria, ATP content, AMPKα1 and SIRT3 protein were observed in the infarction group compared with the sham group. There was also a significant increase in the myocardial fibrosis index. Moreover, the LVEF decreased significantly and the myocardial fibrosis index had increased significantly in the observation group compared with the sham operation group, though the two groups exhibited no significant differences the number of mitochondria, ATP content, or the expression of AMPKα1 or SIRT3. Compared with the myocardial infarction group, in the observation group there was a significant increase in the LVEF, the number of mitochondria, ATP content, and the expression of AMPKα1 and SIRT3 protein, with a significant decrease in the fibrosis index. AMPKα1 and SIRT3 level were positively inter-correlated and positively correlated with LVEF and ATP content.Conclusions:IH intervention can promote ATP synthesis and improve mitochondrial structure by regulating the AMPKα1/SIRT3 pathway, reducing myocardial fibrosis and enhancing cardiac function.
10.Optimization of the formulation of a porcine fibrin patch
Rubing LI ; Weida LI ; Wenting LIU ; Yulu LI ; Xiaohong GU ; Lijuan YU ; Huayin WAN
China Pharmacy 2023;34(20):2497-2501
OBJECTIVE To optimize the formulation of a porcine fibrin patch (abbreviated as “DBT”). METHODS Based on single-factor tests, with the contents of fibrinogen, thrombin and collagen before freeze-drying as the factors, with the overall desirability (OD) value of adhesion strength, holding viscosity and water absorption as response value, the formulation of DBT was optimized by Box-Behnken-response surface methodology, and the verification tests were conducted. RESULTS According to the results of the single factor tests and Box-Behnken-response surface methodology, combined with the actual production, the optimal formulation of DBT was 6.5 mg/cm2 of fibrinogen, 8.0 IU/cm2 of thrombin and 5.6 mg/mL of collagen. The average OD value of 3 validation tests was 0.726 6 (RSD=0.58%, n=3), and the relative error of which with the predicted value (0.733 0) was -0.87%. CONCLUSIONS The optimal formulation of DBT is stable and feasible.


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