1.Ershiwuwei Guijiu Pill Activates PI3K/Akt/mTOR-mediated Autophagy to Alleviate Osteoporosis in Ovariectomized Rats
Yunan JIANG ; Lixue ZHANG ; Fanglin DUAN ; Yao YU ; Fenghui LI ; Lina MA ; Peifeng WU ; Changxing LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):43-51
ObjectiveTo investigate the mechanism of Ershiwuwei Guijiu pill in preventing and treating postmenopausal osteoporosis (PMOP) by activating the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway and inhibiting excessive autophagy. MethodFemale SD rats were ovariectomized and randomly divided into the sham operation group (Sham), the operation group (OVX), the Ershiwuwei Guijiu pill (GJ) group, and the raloxifene hydrochloride (RLX) group, with 10 rats in each group. Enzyme-linked immunosorbent assay (ELISA) and colorimetric methods were used to detect the levels of estrogen, bone metabolism markers in serum, and total superoxide dismutase (T-SOD), malondialdehyde (MDA), and glutathione peroxidase (GSH-Px) in tibial tissue. Flow cytometry was used to detect reactive oxygen species (ROS) levels in bone marrow mesenchymal stem cells. Masson staining was used to observe pathological changes in the proximal tibia, and micro-computed tomography (Micro-CT) was used to observe changes in tibial microstructural parameters. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the expression of autophagy-related proteins Beclin1, microtubule-associated protein 1A/1B-light chain 3 (LC3), autophagy-related 5 (Atg5), as well as PI3K, Akt, and mTOR in tibial tissue. ResultCompared with the Sham group, the OVX group showed a significant decrease in serum levels of estradiol (E2) and calcium ion (Ca2+), and T-SOD, GSH-Px, PI3K, Akt, and mTOR mRNA levels in bone tissue (P<0.05, P<0.01), significantly reduced bone mineral density (BMD), bone surface/bone volume (BS/BV), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular connectivity (Con) in the tibia (P<0.05, P<0.01), thinner epiphyseal growth plate, and the bone marrow cavity filled with fat vacuoles. Moreover, the levels of phosphorus (P), MDA, ROS, and mRNA and protein expression of Beclin1, LC3, and Atg5, as well as trabecular separation (Tb.Sp) were significantly elevated (P<0.05, P<0.01). Compared with the OVX group, the GJ and RLX groups showed significant increases in serum E2 and Ca2+, and bone tissue levels of SOD, GSH-Px, and the mRNA levels of PI3K, Akt, and mTOR (P<0.05, P<0.01), significantly increased BMD, BS/BV, Tb.Th, Tb.N, and Con in the tibia, thickened epiphyseal growth plate, and significantly reduced fat vacuoles in the bone marrow cavity (P<0.05, P<0.01). Additionally, the levels of P, MDA, ROS, Beclin1, LC3, Atg5 mRNA and proteins, and Tb.Sp were significantly decreased (P<0.05, P<0.01). The ratios of p-PI3K/PI3K, p-Akt/Akt, and p-mTOR/mTOR, which were significantly reduced in the OVX group (P<0.01), were significantly increased in the GJ and RLX groups (P<0.01). ConclusionThe Ershiwuwei Guijiu pill reduces oxidative stress and inhibits autophagy, thereby preventing and treating postmenopausal osteoporosis. Its mechanism may be related to the activation of the PI3K/Akt/mTOR signaling pathway, which inhibits autophagy.
2.Relationship between college students'perceived stress and their suicidal ideation:multiple mediating effect of resilience and depression
Caizhi WU ; Na MA ; Tingting HUANG ; Afang LU ; Zhihong REN ; Fenghui YUAN
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(3):371-375
Objective To explore the relationship between perceived stress and suicidal ideation as well as the mediating effect of resilience and depression.Methods A sample of 875 college students was recruited for the study to complete a set of self-report measures of Chinese Perceived Stress Scale(CPSS),the Resiliency Scale of University Students,Suicidal Ideation Questionnaire,and Beck Depression Inventory(BDI).Results ①College students'perceived stress and depression had significantly positive correlation with their suicidal ideation,while the students'resilience had a significantly negative correlation with their perceived stress and depression.②Perceived stress did not affect suicidal ideation of the college students directly,but indirectly affected their suicidal ideation through three significant mediating pathways:the separate mediating effects of(a)resilience and(b)depression,and the serial mediating effect of(c)resilience and depression.Conclusion Resilience and depression exert a chain mediating effect between perceived stress and suicidal ideation of college students.
3. Clinical research of target guided treatment of patients with severe heart failure under the guidance of pulse indicator continuous cardiac output
Wei WU ; Yimin XUE ; Fenghui LIN ; Dewei CHEN
Chinese Critical Care Medicine 2019;31(12):1535-1537
Objective:
To investigate the value of pulse indicator continuous cardiac output (PiCCO) monitoring in the treatment management of patients with severe heart failure.
Methods:
Sixty patients of severe heart failure admitted to intensive care unit (ICU) of Fujian Provincial Hospital from August 2017 to February 2019 were enrolled, and they were divided into control group and treatment group according to random number table method, with 30 in each group. The treatment group used bedside PiCCO to carry out minimally invasive hemodynamics monitoring, according to the monitoring data target guidance for vasoactive drugs and liquid management. The control group was based only on traditional electrocardiogram (ECG) monitoring and lung sound, urine volume of vasoactive drugs and liquid management. The changes of cardiac index (CI), global end diastolic volume index (GEDVI), extravascular lung water index (EVLWI), systemic vascular resistance index (SVRI), invasive mean arterial pressure (MAP) and central venous pressure (CVP) were observed before and 72 hours after treatment in the treatment group. The 7-day total effective rate, the length of ICU stay and 28-day mortality were compared between the two groups.
Results:
Compared with before treatment, CI and MAP in the treatment group were significantly increased after treatment [CI (mL·s-1·m-2): 53.34±16.67 vs. 35.01±13.34, MAP (mmHg, 1 mmHg = 0.133 kPa): 72.6±10.6 vs. 62.5±10.3, both
4. A clinical study of the evaluation of hemodynamic status in mechanically ventilated critically ill patients by continuous non-invasive arterial pressure monitor
Yimin XUE ; Wei WU ; Mingguang CHEN ; Qian CHEN ; Dewei CHEN ; Fenghui LIN
Chinese Critical Care Medicine 2019;31(10):1231-1235
Objective:
To evaluate the difference and correlation between continuous non-invasive arterial pressure (CNAP) monitor and pulse indicated continuous cardiac output (PiCCO) monitor on determination of hemodynamic parameters in mechanically ventilated critically ill patients, and to assess the feasibility of non-invasive monitoring of hemodynamics with CNAP.
Methods:
A prospective observation self-control study was conducted.The critically ill patients with mechanical ventilation who needed hemodynamics monitoring, and admitted to the fourth department of intensive care unit (ICU) of Fujian Provincial Hospital from June 2018 to March 2019 were enrolled. PiCCO catheter were inserted immediately after admission, the hemodynamic indexes were measured by thermodilution method, and mean arterial pressure (MAPPiCCO), cardiac index (CIPiCCO), pulse pressure variation rate (PPVPiCCO) and systemic vascular resistance index (SVRIPiCCO) were obtained at 0 hour and 24 hours respectively. Meanwhile, the above indexes (MAPCNAP, CICNAP, PPVCNAP and SVRICNAP) were measured with CNAP. All measurements were repeated thrice and average values were reported. The differences in above parameters between the two methods were evaluated. Pearson test was used for the correlation analysis and Bland-Altman analysis method was used for consistency test.
Results:
Thirty-eight patients were enrolled into this study. One patient died within 24 hours was excluded, 2 patients were excluded due to withdrawing treatment within 24 hours, 2 patients were excluded because of atrial fibrillation, and 1 patient's data was lost due to technical problems. Thus, data from 32 patients were available for final analysis. There were 12 females and 20 males, aging 26-84 years old with the mean of (66.8±19.1) years old, body mass index (BMI) of (23.7±3.9) kg/m2, acute physiology and chronic health evaluationⅡ (APACHEⅡ) score of 19.5±5.3, sepsis-related organ failure assessment (SOFA) score of 9.7±4.1. There were no significant differences in CI or PPV between CNAP and PiCCO groups [CI (mL·s-1·m-2): 59.8±12.6 vs. 58.5±14.2, PPV: (14.7±6.8)% vs. (14.0±6.8)%, both
5.A clinical study of the evaluation of hemodynamic status in mechanically ventilated critically ill patients by continuous non-invasive arterial pressure monitor.
Yimin XUE ; Wei WU ; Mingguang CHEN ; Qian CHEN ; Dewei CHEN ; Fenghui LIN
Chinese Critical Care Medicine 2019;31(10):1231-1235
OBJECTIVE:
To evaluate the difference and correlation between continuous non-invasive arterial pressure (CNAP) monitor and pulse indicated continuous cardiac output (PiCCO) monitor on determination of hemodynamic parameters in mechanically ventilated critically ill patients, and to assess the feasibility of non-invasive monitoring of hemodynamics with CNAP.
METHODS:
A prospective observation self-control study was conducted.The critically ill patients with mechanical ventilation who needed hemodynamics monitoring, and admitted to the fourth department of intensive care unit (ICU) of Fujian Provincial Hospital from June 2018 to March 2019 were enrolled. PiCCO catheter were inserted immediately after admission, the hemodynamic indexes were measured by thermodilution method, and mean arterial pressure (MAPPiCCO), cardiac index (CIPiCCO), pulse pressure variation rate (PPVPiCCO) and systemic vascular resistance index (SVRIPiCCO) were obtained at 0 hour and 24 hours respectively. Meanwhile, the above indexes (MAPCNAP, CICNAP, PPVCNAP and SVRICNAP) were measured with CNAP. All measurements were repeated thrice and average values were reported. The differences in above parameters between the two methods were evaluated. Pearson test was used for the correlation analysis and Bland-Altman analysis method was used for consistency test.
RESULTS:
Thirty-eight patients were enrolled into this study. One patient died within 24 hours was excluded, 2 patients were excluded due to withdrawing treatment within 24 hours, 2 patients were excluded because of atrial fibrillation, and 1 patient's data was lost due to technical problems. Thus, data from 32 patients were available for final analysis. There were 12 females and 20 males, aging 26-84 years old with the mean of (66.8±19.1) years old, body mass index (BMI) of (23.7±3.9) kg/m2, acute physiology and chronic health evaluation II (APACHE II) score of 19.5±5.3, sepsis-related organ failure assessment (SOFA) score of 9.7±4.1. There were no significant differences in CI or PPV between CNAP and PiCCO groups [CI (mL×s-1×m-2): 59.8±12.6 vs. 58.5±14.2, PPV: (14.7±6.8)% vs. (14.0±6.8)%, both P > 0.05]. MAP and SVRI measured by CNAP were significantly higher than those measured by PiCCO [MAP (mmHg, 1 mmHg = 0.133 kPa): 65.6±9.4 vs. 60.1±9.2, SVRI (kPa×s×L-1×m-2): 206.2±53.9 vs. 179.5±57.8, both P < 0.01]. The correlation analysis showed that MAP, CI, PPV and SVRI measured by the two methods were significantly positively correlated (r value was 0.624, 0.864, 0.835 and 0.655 respectively, all P < 0.05). Bland-Altman analysis showed that CNAP and PiCCO had a good consistency for the measurement of CI and PPV, the average differences were 1.2 mL×s-1×m-2 and 0.5% respectively, while the 95% confidence interval (95%CI) were -12.8-15.3 mL×s-1×m-2 and -7.1%-8.2% respectively. However, the consistency of MAP and SVRI measured by those two methods was poor, the average differences were 5.5 mmHg and 26.8 kPa×s×L-1×m-2 respectively, while the 95%CI was -10.4-21.3 mmHg and -64.5-118.0 kPa×s×L-1×m-2 respectively.
CONCLUSIONS
CNAP was comparable with PiCCO when monitoring CI and PPV in mechanically ventilated critically ill patients; while the results of MAP and SVRI might be inaccurate, which should be interpreted correctly and carefully.
Adult
;
Aged
;
Aged, 80 and over
;
Arterial Pressure
;
Cardiac Output
;
Critical Illness
;
Female
;
Hemodynamics
;
Humans
;
Male
;
Middle Aged
;
Prospective Studies
;
Respiration, Artificial
6.Clinical research of target guided treatment of patients with severe heart failure under the guidance of pulse indicator continuous cardiac output.
Wei WU ; Yimin XUE ; Fenghui LIN ; Dewei CHEN
Chinese Critical Care Medicine 2019;31(12):1535-1537
OBJECTIVE:
To investigate the value of pulse indicator continuous cardiac output (PiCCO) monitoring in the treatment management of patients with severe heart failure.
METHODS:
Sixty patients of severe heart failure admitted to intensive care unit (ICU) of Fujian Provincial Hospital from August 2017 to February 2019 were enrolled, and they were divided into control group and treatment group according to random number table method, with 30 in each group. The treatment group used bedside PiCCO to carry out minimally invasive hemodynamics monitoring, according to the monitoring data target guidance for vasoactive drugs and liquid management. The control group was based only on traditional electrocardiogram (ECG) monitoring and lung sound, urine volume of vasoactive drugs and liquid management. The changes of cardiac index (CI), global end diastolic volume index (GEDVI), extravascular lung water index (EVLWI), systemic vascular resistance index (SVRI), invasive mean arterial pressure (MAP) and central venous pressure (CVP) were observed before and 72 hours after treatment in the treatment group. The 7-day total effective rate, the length of ICU stay and 28-day mortality were compared between the two groups.
RESULTS:
Compared with before treatment, CI and MAP in the treatment group were significantly increased after treatment [CI (mL×s-1×m-2): 53.34±16.67 vs. 35.01±13.34, MAP (mmHg, 1 mmHg = 0.133 kPa): 72.6±10.6 vs. 62.5±10.3, both P < 0.05], GEDVI, EVLWI, SVRI, CVP were significantly decreased [GEDVI (mL/m2): 760.3±90.2 vs. 960.2±110.3, EVLWI (mL/kg): 6.5±1.3 vs. 12.5±6.2, SVRI (kPa×s×L-1×m-2): 297.3±35.1 vs. 434.1±58.8, CVP (mmHg): 10.1±2.6 vs. 12.2±3.4, all P < 0.05]. Compared with the control group, the 7-day total effective rate of the treatment group was significantly higher (90.0% vs. 80.0%), the length of ICU stay was significantly shorter (days: 8.2±4.5 vs. 10.3±2.5), and the 28-day mortality was significantly lower, with statistically significant difference (all P < 0.05).
CONCLUSIONS
PiCCO monitoring is a goal-oriented treatment management for patients with severe heart failure, which is helpful to individualized accurate treatment, shorten the length of ICU stay and improve short-term prognosis.
Cardiac Output
;
Extravascular Lung Water
;
Heart Failure/therapy*
;
Heart Rate
;
Hemodynamics
;
Humans
;
Prospective Studies
7. The effect of microRNA-21 on myocardial fibrosis in mice with chronic viral myocarditis
Yimin XUE ; Mingguang CHEN ; Dewei CHEN ; Weifeng WU ; Yanli LIU ; Fenghui LIN
Chinese Journal of Cardiology 2018;46(6):450-457
Objective:
To explore the effect of microRNA-21 (miR-21) on myocardial fibrosis in mice with chronic viral myocarditis (CVMC) and related mechanisms.
Methods:
Forty 4-week-old Balb/c male mice were randomly divided into 4 groups (
8.Changes of intermediate monocytes in peripheral blood of patients with preeclampsia and their significance
Hongyou WANG ; Lei QIAN ; Fenghui WU ; Yongfang WANG ; Jianxin ZHONG
Chinese Journal of Perinatal Medicine 2017;20(1):15-20
ObjectiveTo explore the role of peripheral blood intermediate monocytes in the pathogenesis of preeclampsia.MethodsFifty-two patients with established preeclampsia in Binhai County People's Hospital from October 2014 to October 2015, 42 healthy pregnant women and 42 healthy non-pregnant women were enrolled in this study. The percentage of intermediate monocyte subsets, ratio of positive cells and mean fluorescence intensity (MFI) of Toll-like receptor (TLR) 2, TLR4, CD64, and triggering receptor expressed on myeloid cell-1(TREM-1), and MFI of intracellular tumor necrosis factor-α (TNF-α) and interleukin (IL)-6 were evaluated by flow cytometry. The concentrations of IL-6, IL-8, IL-1β, IL-12P70 and TNF-α in serum were analyzed using Luminex liquid phase chip technology. Independent two samplest-test, analysis of variance, Mann-WhitneyU test, Kruskal-Wallis test and Pearson correlation analysis were used for statistical analysis.ResultsPercentage of intermediate monocytes was higher in preeclampsia patients [10.4%(5.3%-19.9%)]than in healthy pregnant women [6.6%(4.9%-7.8%)], and both were higher than in non-pregnant women [3.8%(2.4%-5.0)%](allP<0.05). The ratio of TLR4 and CD64 positive intermediate monocytes [(60.1±12.5)%vs (24.9±8.8)%; (85.3±5.4)% vs (67.4±7.5)%](t were 15.416 and 13.437, bothP<0.05), and MFI of TLR4 (50.3±10.2 vs 26.8±8.6), TREM-1(35.6±4.1 vs 28.6±4.7) and CD64 (39.8±5.2 vs 28.9±4.8) (t were 11.898, 7.707 and 10.454, allP<0.05) were higher in preeclampsia patients than in healthy pregnant women. MFI of intracellular IL-6 (32.3±4.7 vs 28.6±3.5) and TNF-α (44.6±6.3 vs 36.7±8.3) in intermediate monocytes of preeclampsia patients was also significantly higher than that of healthy pregnant women (t were 4.239 and 5.245, bothP<0.05). Serum concentrations of IL-6, IL-8 and TNF-α were higher in preeclamptic patients than in healthy pregnant women and non-pregnant women (allP<0.05). Furthermore, a positive correlation was found between the percentage of intermediate monocytes and the serum levels of IL-6 and TNF-α in preeclamptic patients (r were 0.397 and 0.347, bothP<0.05).ConclusionsMonocyte subpopulations from preeclamptic patients are abnormally skewed toward intermediate monocytes which have high expressions of TLR4, TREM-1 and CD64, and secret more proinflammatory cytokines such as IL-6 and TNF-α. Therefore, intermediate monocytes are specifically altered in preeclamptic patients and may play a role in the pathophysiology of preeclampsia.
9.Analysis for influence of coronary artery lesions position and degree in 224 patients with acute ST eleva-tion myocardial infarction
Mingguang CHEN ; Ruijin GUAN ; Zhiyong WU ; Fenghui LIN
Chinese Journal of cardiovascular Rehabilitation Medicine 2015;24(5):550-553
Objective:To explore influence of position of myocardial infarction and coronary artery lesions in patients with acute ST elevation myocardial infarction (STEMI) ,and the relationship among heart failure ,arrhythmia and severity of coronary artery lesion .Methods :Clinical data of 224 patients ,who hospitalized in our hospital because of STEMI and received coronary angiography from Jan 2009 to Jun 2011 ,were retrospectively analyzed .General data of patients were collected ,and SYNTAX score was used to reflect severity of coronary artery lesion ,and the rela‐tionship among heart failure ,arrhythmia and SYNTAX scores were analyzed .Results:Incidence rate of heart fail‐ure in patients with infarction relate artery left anterior descending artery (LAD) AND/or left main coronary artery (LM) was significantly higher than that of patients with right coronary artery (RCA) (57.0% vs .39.7% , P=0.017) ,incidence rate of arrhythmia in patients with RCA was significantly higher than that of patients with left circumflex artery (LCX) (37.0% vs .6.3% , P=0.016);incidence rates of arrhythmia (48.4% ) ,shock (54.8% ) were highest in patients with inferior wall/right ventricle than those of other position , P<0.05 or <0.01.SYNTAX scores in patients with heart failure and arrhythmia were significantly higher than those of patients without heart failure and arrhythmia respectively [ (18.7 ± 9.1) scores vs .(15.4 ± 8.6) scores ,(19.7 ± 9.0) scores vs .(16.1 ± 8.8) scores , P<0.01 both] .Conclusion:Incidence rates of heart failure ,cardiogenic shock and arrhythmia are related to coronary artery lesions position and degree and myocardial infarction position in STEMI patients .
10.Clinical study of rhBNP in the treatment of patients with acute heart fail-ure
China Modern Doctor 2014;(25):29-31
Objective To explore the clinical effect and safety of rhBNP in the treatment of patients with critical illness complicated with heart failure. Methods Twenty patients with acute heart failure who were given rhBNP as an assisted treatment from the department of critical care medicine in our hospital from January to August 2013 were selected. Changes of heart rate,respiratory rate,blood pressure,24-hour urine volume,hepatic and renal functions,NT-proB-NP in the patients before the treatment, 72 hours and 7 days after the treatment were observed. Results 19 patients showed obvious improvement of heart function, with the total effective rate of 95%. Patients'respiratory rate and heart rate 30 minutes after the treatment showed significant improvement(P<0.05),and the improvement continued 72 hours and 7 days after the treatment (P<0.05); urine volume increased significantly 3 days after the treatment with rhBNP(P<0.05). The volume remained stable after 7 days, but some patients significantly reduced their dosage of diuretics;blood pressure decreased 30 minutes after the treatment, and it recovered to normal level after 72 hours and 7 days(P>0.05);NT-proBNP reduced obviously 72 hours after the treatment(P<0.05),and the reduction became significant after 7 days. There were no significant changes in patients' serum creatinine, urea nitrogen and glutamic-pyruvic transaminase (P>0.05). Transient low blood pressure and arrhythmia could be detected in the treatment, but the inci-dence was low. Conclusion RhBNP has favorable effect on acute heart failure in a short period without any significant negative effect on hepatic and renal functions.

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