1.Crosstalk Between the Nervous System and Colorectal Cancer.
Xi LI ; Chunshui YE ; Min WANG ; Patrick KWAN ; Xin TIAN ; Yanke ZHANG
Neuroscience Bulletin 2025;41(1):93-106
The nervous system is the dominant regulatory system in the human body. The traditional theory is that tumors lack innervation. However, an increasing number of studies have shown complex bidirectional interactions between tumors and the nervous system. Globally, colorectal cancer (CRC) is the third most common cancer. With the rise of tumor neuroscience, the role of nervous system imbalances in the occurrence and development of CRC has attracted increasing amounts of attention. However, there are still many gaps in the research on the interactions and mechanisms involved in the nervous system in CRC. This article systematically reviews emerging research on the bidirectional relationships between the nervous system and CRC, focusing on the following areas: (1) Effects of the nervous system on colon cancer. (2) Effects of CRC on the nervous system. (3) Treatment of CRC associated with the nervous system.
Humans
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Colorectal Neoplasms/therapy*
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Animals
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Nervous System/metabolism*
2.Exploration on the Acupoint Selection Law of Fu Wenbin in Using Acupuncture for the Treatment of Insomnia Based on Data Mining
Wanxin ZHANG ; Hui FANG ; Dehui LIN ; Xichang HUANG ; Luda YAN ; Xintian ZHANG ; Sixuan WU ; Wenbin FU
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(8):24-30
Objective To analyze acupoint selection law of Professor Fu Wenbin in using acupuncture for the treatment of insomnia based on data mining technology;To provide references for the formulation and optimization of clinical treatment plans.Methods The cases of insomnia treated by acupuncture in the Acupuncture and Moxibustion Department of Guangdong Provincial Hospital of Traditional Chinese Medicine from January 1,2020 to December 31,2021 and in the Acupuncture and Moxibustion Department of Shenzhen Bao'an Hospital of Traditional Chinese Medicine from August 1,2018 to December 31,2021 were collected.A database of prescription information for acupuncture treatment for insomnia was established.The law of acupoint selection frequency,meridians,specific acupoints,correlation analysis and hidden structure analysis for acupuncture treatment of insomnia was mined.Results A total of 517 prescriptions were collected.Acupoints were mainly taken from Baihui(DU20,516 times),Yintang(DU29,499 times),Zhongwan(RN12,482 times)and Taichong(LR3,410 times),and meridians were mainly from Conception Vessel(2 120 times,11 acupoints),Governor Vessel(1 074 times,5 acupoints),liver meridian(410 times,1 acupoint),stomach meridian(401 times,8 acupoints)and kidney meridian(300 times,6 acupoints).The main specific acupoints were the Jiaohui(2 723 times,20 acupoints),Mu(892 times,4 acupoints),and Yuan(746 times,8 acupoints).The core acupoint combination based on Zhongwan-Baihui,Yintang(RN12-DU20-DU29)was formed by the correlation analysis of high-frequency acupoints,and the hidden structure of high-frequency acupoints was analyzed to obtain four comprehensive clustering models corresponding to the evidence of heart-kidney disharmony,liver depression and kidney deficiency,liver depression and kidney deficiency,and heart and gallbladder dysregulation.Conclusion Professor Fu Wenbin uses acupuncture to treat insomnia,with balancing yin and yang,regulating Conception Vessel and Conception Vessel as the basic treatment principle,dredging the liver to regulate the spirit,harmonizing the stomach to calm the spirit,communicating with the heart and kidney,and treating the heart and gallbladder as the treatment method.
3.Characteristics of traditional Chinese medicine syndromes in patients with Chikungunya hemorrhagic fever:a cross-sectional study
Shiying LU ; Danwen ZHENG ; Xintian HONG ; Yuping LIU ; Guangzong LI ; Zhifeng HONG ; Jinghua YANG ; Yan ZHANG ; Banghan DING ; Yuntao LIU ; Yuanyuan WANG ; Xin YIN ; Jingwei SHUI ; Xiaofei FAN ; Hai LAN ; Zhongde ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(11):1531-1539
Objective To explore the traditional Chinese medicine(TCM)syndrome characteristics of patients with Chikungunya hemorrhagic fever and to provide empirical data to support the application of TCM in diagnosing and treating Chikungunya hemorrhagic fever.Methods A cross-sectional survey was conducted to collect clinical data(sex,age,days since onset,and comorbidity underlying disease conditions)and TCM with four-examination information(symptoms,tongue manifestations,and pulse manifestations)from 255 patients with Chikungunya hemorrhagic fever who visited Lecong Hospital of Shunde,Foshan,the Third People's Hospital of Shunde District of Foshan,Shunde Hospital of Southern Medical University Affiliated Chencun Hospital between July 23 and July 29,2025.Factor and cluster analyses were used to summarize TCM syndrome characteristics and analyze core pathogenesis in conjunction with clinical features.Results Among the 255 patients with Chikungunya hemorrhagic fever,131 were male and 124 were female,with a age of(49.05±17.93)years and a disease duration of(3.26±1.78)days.Among the four types of examination information in TCM,35 items exhibited a frequency exceeding 10%.The most prevalent symptoms were arthralgia(180 patients,70.59%),exanthem(153 patients,60.00%),fatigue(99 patients,38.82%),anhidrosis(98 patients,38.43%),pruritus(96 patients,37.65%),and fever(92 patients,36.08%).Tongue and pulse manifestations were primarily white fur(155 patients,60.78%),pink tongue(111 patients,43.53%),slippery pulse(143 patients,56.08%),and greasy fur(134 patients,52.53%).Patients with disease onset≤3 d had a higher incidence of arthralgia,fatigue,fever,aversion to cold,generalized muscle pain,aversion to wind,insomnia,headache,sweating,low-grade fever,poor appetite,loose stool,hyperhidrosis,and red tongue than those with disease onset≥4 d(P<0.05).Patients with disease onset≥4 d had a higher incidence of pink tongue and thick fur than those with disease onset≤3 d(P<0.05).The syndrome elements in patients with Chikungunya hemorrhagic fever predominantly manifested on the defensive exterior,with involvement of the sinew-bone joints,skin-muscle,and spleen.Pathogenic factors were primarily characterized by external winds,dampness,and heat.Factor and cluster analysis result indicated three TCM pathogenesis progression patterns:imbalance of the defensive exterior with wind-dampness conflict and heat transformation;dampness-heat flowing into muscles and meridians causing joint obstruction and qi blood stasis;and dampness-heat congelation resulting in qi mechanism obstruction,consumption of body fluids,and infiltration of the skin.Conclusion Patients with Chikungunya hemorrhagic fever primarily present with fever,joint pain,and rashes.In TCM,this condition falls under the category of"dampness-warmth"syndrome.Its etiology is attributed to pathogens,with transmission occurring through mosquito bites.The core pathogenesis of TCM is the invasion of the defensive exterior and dampness-toxic heat accumulation.The therapeutic principles focus on clearing heat pathogens,resolving dampness pathogens,dispersing wind pathogens,and promoting the resolution of rashes.
4.Characteristics of traditional Chinese medicine syndromes in patients with Chikungunya hemorrhagic fever:a cross-sectional study
Shiying LU ; Danwen ZHENG ; Xintian HONG ; Yuping LIU ; Guangzong LI ; Zhifeng HONG ; Jinghua YANG ; Yan ZHANG ; Banghan DING ; Yuntao LIU ; Yuanyuan WANG ; Xin YIN ; Jingwei SHUI ; Xiaofei FAN ; Hai LAN ; Zhongde ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(11):1531-1539
Objective To explore the traditional Chinese medicine(TCM)syndrome characteristics of patients with Chikungunya hemorrhagic fever and to provide empirical data to support the application of TCM in diagnosing and treating Chikungunya hemorrhagic fever.Methods A cross-sectional survey was conducted to collect clinical data(sex,age,days since onset,and comorbidity underlying disease conditions)and TCM with four-examination information(symptoms,tongue manifestations,and pulse manifestations)from 255 patients with Chikungunya hemorrhagic fever who visited Lecong Hospital of Shunde,Foshan,the Third People's Hospital of Shunde District of Foshan,Shunde Hospital of Southern Medical University Affiliated Chencun Hospital between July 23 and July 29,2025.Factor and cluster analyses were used to summarize TCM syndrome characteristics and analyze core pathogenesis in conjunction with clinical features.Results Among the 255 patients with Chikungunya hemorrhagic fever,131 were male and 124 were female,with a age of(49.05±17.93)years and a disease duration of(3.26±1.78)days.Among the four types of examination information in TCM,35 items exhibited a frequency exceeding 10%.The most prevalent symptoms were arthralgia(180 patients,70.59%),exanthem(153 patients,60.00%),fatigue(99 patients,38.82%),anhidrosis(98 patients,38.43%),pruritus(96 patients,37.65%),and fever(92 patients,36.08%).Tongue and pulse manifestations were primarily white fur(155 patients,60.78%),pink tongue(111 patients,43.53%),slippery pulse(143 patients,56.08%),and greasy fur(134 patients,52.53%).Patients with disease onset≤3 d had a higher incidence of arthralgia,fatigue,fever,aversion to cold,generalized muscle pain,aversion to wind,insomnia,headache,sweating,low-grade fever,poor appetite,loose stool,hyperhidrosis,and red tongue than those with disease onset≥4 d(P<0.05).Patients with disease onset≥4 d had a higher incidence of pink tongue and thick fur than those with disease onset≤3 d(P<0.05).The syndrome elements in patients with Chikungunya hemorrhagic fever predominantly manifested on the defensive exterior,with involvement of the sinew-bone joints,skin-muscle,and spleen.Pathogenic factors were primarily characterized by external winds,dampness,and heat.Factor and cluster analysis result indicated three TCM pathogenesis progression patterns:imbalance of the defensive exterior with wind-dampness conflict and heat transformation;dampness-heat flowing into muscles and meridians causing joint obstruction and qi blood stasis;and dampness-heat congelation resulting in qi mechanism obstruction,consumption of body fluids,and infiltration of the skin.Conclusion Patients with Chikungunya hemorrhagic fever primarily present with fever,joint pain,and rashes.In TCM,this condition falls under the category of"dampness-warmth"syndrome.Its etiology is attributed to pathogens,with transmission occurring through mosquito bites.The core pathogenesis of TCM is the invasion of the defensive exterior and dampness-toxic heat accumulation.The therapeutic principles focus on clearing heat pathogens,resolving dampness pathogens,dispersing wind pathogens,and promoting the resolution of rashes.
5.Exploration on the Acupoint Selection Law of Fu Wenbin in Using Acupuncture for the Treatment of Insomnia Based on Data Mining
Wanxin ZHANG ; Hui FANG ; Dehui LIN ; Xichang HUANG ; Luda YAN ; Xintian ZHANG ; Sixuan WU ; Wenbin FU
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(8):24-30
Objective To analyze acupoint selection law of Professor Fu Wenbin in using acupuncture for the treatment of insomnia based on data mining technology;To provide references for the formulation and optimization of clinical treatment plans.Methods The cases of insomnia treated by acupuncture in the Acupuncture and Moxibustion Department of Guangdong Provincial Hospital of Traditional Chinese Medicine from January 1,2020 to December 31,2021 and in the Acupuncture and Moxibustion Department of Shenzhen Bao'an Hospital of Traditional Chinese Medicine from August 1,2018 to December 31,2021 were collected.A database of prescription information for acupuncture treatment for insomnia was established.The law of acupoint selection frequency,meridians,specific acupoints,correlation analysis and hidden structure analysis for acupuncture treatment of insomnia was mined.Results A total of 517 prescriptions were collected.Acupoints were mainly taken from Baihui(DU20,516 times),Yintang(DU29,499 times),Zhongwan(RN12,482 times)and Taichong(LR3,410 times),and meridians were mainly from Conception Vessel(2 120 times,11 acupoints),Governor Vessel(1 074 times,5 acupoints),liver meridian(410 times,1 acupoint),stomach meridian(401 times,8 acupoints)and kidney meridian(300 times,6 acupoints).The main specific acupoints were the Jiaohui(2 723 times,20 acupoints),Mu(892 times,4 acupoints),and Yuan(746 times,8 acupoints).The core acupoint combination based on Zhongwan-Baihui,Yintang(RN12-DU20-DU29)was formed by the correlation analysis of high-frequency acupoints,and the hidden structure of high-frequency acupoints was analyzed to obtain four comprehensive clustering models corresponding to the evidence of heart-kidney disharmony,liver depression and kidney deficiency,liver depression and kidney deficiency,and heart and gallbladder dysregulation.Conclusion Professor Fu Wenbin uses acupuncture to treat insomnia,with balancing yin and yang,regulating Conception Vessel and Conception Vessel as the basic treatment principle,dredging the liver to regulate the spirit,harmonizing the stomach to calm the spirit,communicating with the heart and kidney,and treating the heart and gallbladder as the treatment method.
6.Predictive value of leukocyte derived markers for postoperative delirium after cardiac valve surgery
Xintian ZHANG ; Yanhu GE ; Dongni ZHANG ; Jun MA
Chinese Critical Care Medicine 2024;36(7):728-733
Objective:To explore the predictive value of leukocyte derived markers for postoperative delirium (POD) in patients undergoing cardiac valve surgery.Methods:A prospective cohort study was conducted. The patients who underwent cardiac valve surgery admitted to Beijing Anzhen Hospital of Capital Medical University from October 2021 to March 2023 were enrolled. The demographic, baseline and perioperative data were collected, and the neutrophil to lymphocyte ratio (NLR) and platelet to white blood cell ratio (PWR) were calculated before operation and within 24 hours after operation. Delirium assessment was conducted twice a day for patients within 1-5 days after surgery or discharged within 5 days. According to the evaluation results, the patients were divided into delirium group and non-delirium group. The clinical indexes between the two groups were compared. Multivariate Logistic regression analysis was used to screen the independent risk factors of POD, and the POD predictive model was constructed. The predictive value of POD predictive model was evaluated by receiver operator characteristic curve (ROC curve).Results:A total of 235 patients were enrolled in the analysis, of which 83 patients had POD (35.32%) and 152 patients did not have POD (64.68%). Compared with the non-delirious group, the patients in the delirious group had higher Charlson comorbidity index (CCI) score and lower mini-mental state examination (MMSE) score. In terms of perioperative data, compared with the non-delirium group, the patients in the delirium group had longer operative time, duration of cardiopulmonary bypass, length of intensive care unit (ICU) stay, duration of mechanical ventilation, and postoperative hospital stay, higher incidence of perioperative atrial fibrillation, and lower discharge life score. In terms of leukocyte derived markers, NLR within 24 hours after surgery in both groups were significantly higher than those before surgery, and PWR were significantly lower than those before surgery. The NLR within 24 hours after surgery, PWR difference and NLR difference in the delirium group were significantly higher than those in the non-delirium group. Multivariate Logistic regression analysis showed that CCI score [odds ratio ( OR) = 1.394, 95% confidence interval (95% CI) was 1.038-1.872, P = 0.027], perioperative atrial fibrillation ( OR = 3.697, 95% CI was 1.711-7.990, P < 0.001), duration of cardiopulmonary bypass ( OR = 1.008, 95% CI was 1.002-1.015, P = 0.016), length of ICU stay ( OR = 1.006, 95% CI was 1.002-1.010, P = 0.002), NLR difference ( OR = 1.029, 95% CI was 1.009-1.050, P = 0.005) and PWR difference ( OR = 1.044, 95% CI was 1.009-1.080, P = 0.013) were independently correlated with POD. POD predictive model was constructed by multivariate Logistic regression analysis result: POD predictive model index = -4.970+0.336×CCI score+1.317×perioperative atrial fibrillation+0.009×duration of cardiopulmonary bypass+0.006×length of ICU stay+0.030×NLR difference+0.044×PWR difference. ROC curve analysis showed that the area under the ROC curve (AUC) of NLR difference for predicting POD was 0.659 (95% CI was 0.583-0.735), the optimal critical value was 16.62, the sensitivity was 60.2%, and the specificity was 70.4% ( P < 0.05). The AUC of PWR difference for predicting POD was 0.608 (95% CI was 0.528-0.688), the optimal critical value was 25.68, the sensitivity was 51.8%, and the specificity was 75.7% ( P < 0.05). The AUC of POD predictive model for predicting POD was 0.805 (95% CI was 0.745-0.865), the optimal critical value was 0.39, the sensitivity was 74.7%, and the specificity was 79.6% ( P < 0.05). Conclusion:The differences of NLR and PWR are independently related to POD, which has potential value in predicting POD after cardiac valve surgery.
7.Monitoring and Analysis of Blood Concentrations of Seven New Antiepileptic Drugs on 6 537 Cases in A Grade-A Tertiary Hospital in Beijing
Xintian LI ; Dongjie ZHANG ; Li YANG ; Zhigang ZHAO ; Shenghui MEI ; Jiping HUO
Herald of Medicine 2024;43(12):2026-2032
Objective To analyze the blood concentration monitoring results of 7 new antiepileptic drugs levetiracetam(LEV),oxcarbazepine(OXC),lamotrigine(LTG),topiramate(TPM),lacosamide(LCM),zonisamide(ZNS)and perampanel(PER)and provide a basis for clinical rational drug use.Methods Aretrospective analysis was conducted on the blood concentration monitoring results of 7 new antiepileptic drugs in a grade-A tertiary hospital in Beijing from November 2021 to March 2023,with a total of 6 537 valid concentration data collected.The patients were grouped according to age,gender and concomitant medication,and the blood drug concentration levels and compliance rates among the groups were analyzed and compared.Results The male to female patient ratio was 1.35∶1.There were statistically significant differences in the blood concentration distribution of OXC,LEV,LCM and TPM between genders(P<0.05).The blood concentration of LEV showed statistically significant differences between the pediatric group and the elderly group,as well as between the young adult group and the elderly group(P<0.05).The blood concentrations of OXC,ZNS and TPM showed statistically significant differences between the pediatric group and the young and middle-aged group,between the young and middle-aged group and the elderly group,and between the pediatric group and the young and middle-aged group,respectively(P<0.05).The highest and lowest overall compliance rates of blood concentration were observed for OXC and LCM,respectively.The compliance rates of OXC and TPM in the pediatric group were significantly higher than those in the young-middle-aged group,with statistically significant differences(P<0.05),while the compliance rate of LEV in the elderly group was significantly higher than that in the pediatric group and the young-middle-aged group,with a statistically significant difference(P<0.05).There were a total of 2 133 cases with combined drug use.LEV,OXC and LTG are frequently used and have good efficacy and weak interactions when added to treatment.Conclusion New antiepileptic drugs show a promising prospect in treatment,and therapeutic drug monitoring can further improve the effectiveness of individualized clinical treatment.
8.In vivo study of antibacterial carbon dot-modified polyether ether ketone to improve osseointegration of implants for treating MRSA infection environments
Hongxing HE ; Xintian ZHANG ; Menghan ZHANG ; Yao WANG ; Xiaoqin DENG ; Shaohuang WENG
Acta Laboratorium Animalis Scientia Sinica 2024;32(11):1408-1416
Objective This study aimed to evaluate the bone integration performance of antibacterial carbon dot(CD)-modified polyether ether ketone(PEEK)in infectious bone defect environments.Methods Guanidine-based CDs(G-CDs)prepared by the melting method combined with dialysis purification were used to modify PEEK implants using polyvinyl butyraldehyde(PVB)by the soaking-drying method(PEEK/PVB-G-CDs).SD rats were divided into the following groups:(1)PEEK-implanted uninfected(PEEK(-)),(2)PEEK/PVB-G-CDs-implanted uninfected(PEEK/PVB-G-CDs(-)),(3)PEEK-implanted infected(PEEK(+)),and(4)PEEK/PVB-G-CDs-implanted infected(PEEK/PVB-G-CDs(+)).A hole(diameter 2 mm,depth 5 mm)was drilled at the lateral condyle of the vertical femur in all rats to simulate a bone defect.Rats in the PEEK(-)and PEEK/PVB-G-CDs(-)groups without infection were injected with 30 μL physiological saline into the bone marrow cavity,and rats in the PEEK(+)and PEEK/PVB-G-CDs(+)groups with infection were injected with 30 μL MRSA bacterial suspension(1.5 × 104 colony-forming units/mL)into the bone marrow cavity.The implantation site was observed using animal-specific X-ray examination at 0,2,and 4 weeks after implantation,and the bone tissue characteristics of the implantation site were evaluated by micro computed tomography(CT)at 6 weeks after surgery.The bone implantation sites in each group of rats were examined by bacterial culture of bone marrow and hematoxylin and eosin staining,Toluidine blue,Goldner trichrome,and immunohistochemical staining.Results X-ray,Micro-CT,bacterial culture of bone marrow,and histopathological analysis confirmed no signs of infection in the PEEK(-)and PEEK/PVB-G-CDs(-)groups and the implants were integrated with the bone defects.Rats in the PEEK/PVB-G-CDs(+)group showed signs of antibacterial activity that effectively controlled the osteomyelitis caused by MRSA and achieved bone integration,while rats in the PEEK(+)group failed to achieve bone integration because of persistent infection.Immunohistochemical staining confirmed lower levels of anti-inflammatory factors such as IL-4 and IL-10 in the PEEK(+)group,and stronger expression of pro-inflammatory factors such as IL-6 and TNF-α compared with the other three groups,indicating that G-CD-modified PEEK inhibited MRSA infection,regulated inflammation levels in the local microenvironment,and promoted bone integration at the site of bone defects.Conclusions Antibacterial G-CDs modified PEEK exhibits excellent bone integration performance,providing a candidate strategy for future clinical treatment of infectious bone defects.
9.In vivo study of antibacterial carbon dot-modified polyether ether ketone to improve osseointegration of implants for treating MRSA infection environments
Hongxing HE ; Xintian ZHANG ; Menghan ZHANG ; Yao WANG ; Xiaoqin DENG ; Shaohuang WENG
Acta Laboratorium Animalis Scientia Sinica 2024;32(11):1408-1416
Objective This study aimed to evaluate the bone integration performance of antibacterial carbon dot(CD)-modified polyether ether ketone(PEEK)in infectious bone defect environments.Methods Guanidine-based CDs(G-CDs)prepared by the melting method combined with dialysis purification were used to modify PEEK implants using polyvinyl butyraldehyde(PVB)by the soaking-drying method(PEEK/PVB-G-CDs).SD rats were divided into the following groups:(1)PEEK-implanted uninfected(PEEK(-)),(2)PEEK/PVB-G-CDs-implanted uninfected(PEEK/PVB-G-CDs(-)),(3)PEEK-implanted infected(PEEK(+)),and(4)PEEK/PVB-G-CDs-implanted infected(PEEK/PVB-G-CDs(+)).A hole(diameter 2 mm,depth 5 mm)was drilled at the lateral condyle of the vertical femur in all rats to simulate a bone defect.Rats in the PEEK(-)and PEEK/PVB-G-CDs(-)groups without infection were injected with 30 μL physiological saline into the bone marrow cavity,and rats in the PEEK(+)and PEEK/PVB-G-CDs(+)groups with infection were injected with 30 μL MRSA bacterial suspension(1.5 × 104 colony-forming units/mL)into the bone marrow cavity.The implantation site was observed using animal-specific X-ray examination at 0,2,and 4 weeks after implantation,and the bone tissue characteristics of the implantation site were evaluated by micro computed tomography(CT)at 6 weeks after surgery.The bone implantation sites in each group of rats were examined by bacterial culture of bone marrow and hematoxylin and eosin staining,Toluidine blue,Goldner trichrome,and immunohistochemical staining.Results X-ray,Micro-CT,bacterial culture of bone marrow,and histopathological analysis confirmed no signs of infection in the PEEK(-)and PEEK/PVB-G-CDs(-)groups and the implants were integrated with the bone defects.Rats in the PEEK/PVB-G-CDs(+)group showed signs of antibacterial activity that effectively controlled the osteomyelitis caused by MRSA and achieved bone integration,while rats in the PEEK(+)group failed to achieve bone integration because of persistent infection.Immunohistochemical staining confirmed lower levels of anti-inflammatory factors such as IL-4 and IL-10 in the PEEK(+)group,and stronger expression of pro-inflammatory factors such as IL-6 and TNF-α compared with the other three groups,indicating that G-CD-modified PEEK inhibited MRSA infection,regulated inflammation levels in the local microenvironment,and promoted bone integration at the site of bone defects.Conclusions Antibacterial G-CDs modified PEEK exhibits excellent bone integration performance,providing a candidate strategy for future clinical treatment of infectious bone defects.
10.Effects of sodium-glucose cotransporter 2 inhibitor dapagliflozin on myocardial remodeling in mice with diabetic cardiomyopathy
Xiaoxing LI ; Jiajun ZHANG ; Xinhui FAN ; Xintian SONG ; Feng XU ; Xiaoping JI ; Yuguo CHEN ; Chuanbao LI
Chinese Journal of Geriatrics 2023;42(9):1099-1104
Objective:To investigate the effects of sodium-glucose cotransporter 2 inhibitor dapagliflozin on myocardial remodeling in mice with diabetic cardiomyopathy and related mechanisms.Methods:Between January and December 2021, 60 6-week-old male C57BL/6J mice were chosen for the study, 40 were used to establish a diabetic cardiomyopathy model and the model was established in 28 mice, of whom, 14 were assigned to a non-intervention group and 14 to a dapagliflozin treatment group(intervention group).The rest of the 20 mice were in the control group.The mice in the intervention group were treated with dapagliflozin via oral gavage for 12 weeks.Cardiac structure and function were measured by ultrasound, the degree of myocardial fibrosis was evaluated by histology and electron microscopy, the concentrations of inflammatory factors were detected by enzyme-linked immunosorbent assays, apoptosis of myocardial cells was examined by terminal deoxynucleotidyl transferase mediated dUTP nick end labeling(TUNEL), and the level of myocardial oxidative stress was evaluated by dihydroethidium fluorescence.Results:At the end of the experiments, the body weight and fasting blood glucose in the intervention group were slightly lower than in the non-intervention group, but the difference was not statistically significant, while values from cardiac function parameters such as left ventricular ejection fraction were more favorable than in the non-intervention group[(61.07±4.66)% vs.(45.8±4.80)%, t=-5.24, P<0.05].Compared with the non-intervention group, the intervention group had alleviated myocardial hypertrophy, less myocardial disarray, and reduced collagen volume fraction[(18.4±1.9)% vs.(31.8±3.7)%, t=-12.0, P<0.05].Furthermore, the concentrations of inflammatory factors in the intervention group were lower than in the control group[interleukin-6: (82.19±10.90)ng/L vs.(291.02±31.02)ng/L, t=23.8, P<0.05; tumor necrosis factor-α: (70.45±12.13)ng/L vs.(201.31±27.10)ng/L( t=16.5), P<0.05; perforin 3: (13.05±2.04)μg/L vs.(42.40±1.26)μg/L( t=45.8), P<0.05; the index of myocardial apoptosis: 1.736±0.247 vs.0.864±0.129, t=11.7, P<0.05].The level of myocardial oxidative stress in the non-intervention group was higher than in the intervention group(2.655±0.252 vs.1.274±0.298, t=-13.3, P<0.05). Conclusions:Dapagliflozin can reduce myocardial hypertrophy and inhibit myocardial fibrosis through mitigating myocardial oxidative stress and inflammatory response, thus suppressing myocardial remodeling and ultimately protecting cardiac function in diabetic cardiomyopathy mice.

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