1.A case of immune checkpoint inhibitor associated acute myocardial infarction
Ran XU ; Hao LU ; Yan WANG ; Leilei CHENG
Chinese Journal of Clinical Medicine 2024;31(4):571-576
As an important advance in the treatment of anti-tumor therapy,immune checkpoint inhibitors significantly prolong the survival of patients with malignant tumors.At the same time,immune-related adverse reactions are also increasing,among which ICIs have increased the risk of acute coronary events,but clinical reports are rare.This paper analyzes the history of a patient with pulmonary small cell neuroendocrine carcinoma who developed acute myocardial infarction after ICIs treatment,suggesting that clinicians should be alert to the occurrence of ICIs-related acute myocardial infarction,and improve the prognosis of patients through early identification and intervention.
2.Effect and possible mechanism of Wuzi Yanzong Pill on motor function of neurons in Parkinson's disease mice
Tao PAN ; Qi XIAO ; Hui-Jie FAN ; Lei XU ; Lu JIA ; Shao-Chen QIN ; Li-Ran WANG ; Cun-Gen MA ; Bo ZHANG ; Zhi CHAI
Medical Journal of Chinese People's Liberation Army 2024;49(5):550-556
Objective To observe the effects of Wuzi Yanzong Pill(WYP)on motor function in a mouse model of Parkinson's disease(PD)and to explore its potential mechanisms.Methods Twenty-four male C57BL/6 mice were randomly divided into control group,model group and WYP group,with 8 mice in each group.Mice in model and WYP group were intraperitoneally injected with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine for 7 consecutive days to establish a PD model.From the 1st day of model preparation,mice in WYP group were gavaged with WYP solution[16 g/(kg·d)]twice daily for 14 consecutive days.At the same time,mice in control group and model group were gavaged with 0.9%NaCl solution[50 ml/(kg·d)]twice a day.Gait experiment was utilized to assess the behavioral performance of mice in each group.Immunofluorescence staining was conducted to detect the number of tyrosine hydroxylase(TH)-positive cells in the substantia nigra region,the fluorescence intensity of nuclear factor E2-related factor 2(Nrf2),and the number of NeuN neurons co-labeled with Nrf2 in each group.Western blotting was employed to determine the expression levels of TH,Kelch-like ECH-associated protein 1(Keap-1),Nrf2,and heme oxygenase-1(HO-1)in the brain tissue of mice in each group.Results The gait experiment results showed that,compared with control group,standing time of the left front paw,right front paw,left hind paw,and right hind paw of the mice in model group was significantly shortened(P<0.01),while swinging time of the left front paw,right front paw,left hind paw,and right hind paw was significantly prolonged(P<0.05).Compared with model group,standing time of the left front paw and right hind paw of the mice in WYP group was significantly prolonged(P<0.05),while swing time of the left front paw and right front paw was significantly shortened(P<0.05).Immunofluorescence staining and Western blotting results showed that,compared with control group,in model group the number of TH-positive cells,average fluorescence intensity of Nrf2,and HO-1 levels decreased(P<0.01),while the Keap-1 protein level increased(P<0.01),and the number of Nrf2 expression on NeuN neurons decreased(P<0.001).Compared with model group,the number of TH-positive cells,average fluorescence intensity of Nrf2,HO-1 level,and the number of Nrf2 expression on NeuN neurons in the brain tissue of mice in WYP group increased(P<0.05),while Keap-1 protein level decreased(P<0.05).Conclusions WYP could alleviate the motor dysfunction and protect dopaminergic neurons in PD mice.The underlying mechanism may be related to the regulation of Keap-1/Nrf2/HO-1 pathway to inhibit oxidative stress response.
3.Influence of ultrasound guidance combined with CT verification on the puncture effect of radiofre-quency thermocoagulation of semilunar ganglion
Ran WANG ; Xianzhong GAO ; Min HUA ; Weiping LU ; Hua GUAN ; Hongwei SHI ; Chenjie XU
The Journal of Clinical Anesthesiology 2024;40(11):1178-1183
Objective To investigate the puncture effect of radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale with ultrasound guidance and CT verification in the treatment of V3 branch trigeminal neuralgia(TN).Methods Forty-eight V3 branch TN patients,19 males and 29 females,aged>18 years,BMI≤28 kg/m2,undergoing radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale were selected.Patients were divided into two groups by random number table method:ultrasound guidance combined with CT verification group(group U)and CT guidance group(group C),24 patients in each groups.According to grouping result,patients received radiofrequency ther-mocoagulation of semilunar ganglion with foramen ovale puncture performed under the ultrasound guidance and CT verification or CT guidance respectively.The success cases of puncture,the number of puncture,ra-diation dose,puncture time,operation time and the occurrence of treatment complications were recorded.Numerical rating scale(NRS)scores and Barrow neurological institute(BNI)scores were recorded before surgery,2,4,12,and 24 weeks after surgery,and good postoperative pain relief rate(BNI Ⅰ or Ⅱ)was calculated.Results All patients in both groups completed puncture operationand radiofrequency thermo-coagulation.Compared with group C,group U had fewer number of puncture,lower radiation exposure,and shorter puncture and surgical times(P<0.05).Compared with baseline before operation,NRS scores were significantly lower in both groups at 2,4,12,and 24 weeks after surgery(P<0.05).There was no signif-icant difference in the rate of good pain relief 2,4,12,and 24 weeks after surgery between the two groups.There was no significant difference in the incidence of facial hematoma between the two groups.No other se-rious complications were found in both groups.Conclusion Radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale with ultrasound guidance and CT verification is a safe and feasible method for the treatment of the V3 branch TN.Compared with CT guidance,ultrasound guidance combined with CT verification can significantly improve the puncture accuracy and reduce the radiation exposure related to treatment.
4.Application and Prospect of Therapeutic Radionuclides
Hongzhu LIU ; Liping YANG ; Yuxuan ZHENG ; Chang LU ; Ran ZHANG ; Yuwei LIANG ; Xu GAO ; Zhenjiang ZHANG ; Minghui AN ; Jing XIE ; Jian GONG
Herald of Medicine 2024;43(10):1603-1609
Targeted radiation therapy using radionuclides is a favored approach for treating tumors.This procedure involves the delivery of drugs to the lesion site via carriers or interventional methods,followed by the emission of radiation energy that selectively irradiates the lesion tissue.This approach minimizes damage to normal tissue and achieves the desired therapeutic effect.Factors such as the type of therapeutic radionuclide,radiation energy,physical half-life,method of preparation,and toxicity determine their clinical application.In this paper,the characteristics and clinical application of therapeutic radionuclides were reviewed to providing reference for the clinical application of targeted therapeutic radionuclides.
5.Evaluation of life cycle management system on patients'prognosis after transcatheter aortic valve replacement
Ruo-Yun LIU ; Ran LIU ; Mei-Fang DAI ; Yue-Miao JIAO ; Yang LI ; San-Shuai CHANG ; Ye XU ; Zhi-Nan LU ; Li ZHAO ; Cheng-Qian YIN ; Guang-Yuan SONG
Chinese Journal of Interventional Cardiology 2024;32(6):311-316
Objective With the widespread of transcatheter aortic valve replacement(TAVR)in patients with severe symptomatic aortic stenosis(AS),the life-cycle management has become a major determinant of prognosis.Methods A total of 408 AS patients who underwent successfully TAVR from June 2021 to August 2023 were consecutively enrolled in Hospital Valve Intervention Center.Patients were assigned to the Usual Care(UC)group between June 2021 and October 2022,while patients were assigned to the Heart Multi-parameter Monitoring(HMM)group between November 2022 and August 2023.The primary endpoint was defined as composite endpoint within 6 months post-TAVR,including all-cause death,cardiovascular death,stroke/transient ischemic attack,conduction block,myocardial infarction,heart failure rehospitalization,and major bleeding events.Secondary endpoints were the time interval(in hours)from event occurrence to medical consultation or advice and patient satisfaction.Statistical analysis was performed using Kaplan-Meier and multivariable Cox proportional hazards models.Results The incidence of primary endpoint in HMM group was significantly lower than that in UC group(8.9%vs.17.7%,P=0.016),the driving event was the rate of diagnosis and recognition of conduction block.The average time intervals from event occurrence to receiving medical advice were 3.02 h in HHM group vs.97.09 h in UC group(P<0.001).Using cardiac monitoring devices and smart healthcare platforms provided significant improving in patients long-term management(HR 0.439,95%CI 0.244-0.790,P=0.006).Conclusions The utilization of cardiac monitoring devices and smart healthcare platforms effectively alerted clinical events and improved postoperative quality of life during long-term management post TAVR.
6.Locking compression plating for treatment of periprosthetic distal femur fractures in the aged
Yake LIU ; Zhenyu ZHOU ; Ran TAO ; Yi CAO ; Jianwei ZHU ; Youhua WANG ; Yue LU ; Hua XU ; Jiacheng XU ; Hongdong MA ; Jining SHEN ; Fengxiang ZHAO ; Kefan WU ; Fan LIU
Chinese Journal of Orthopaedic Trauma 2024;26(9):790-796
Objective:To explore the clinical outcomes of locking compression plating (LCP) in the treatment of periprosthetic fracture (PPF) of the distal femur in the aged patients.Methods:A retrospective study was performed to analyze the 31 aged patients who had been treated at Department of Orthopedic Surgery, The Affiliated Hospital to Nantong University for PPF of the distal femur with LCP between June 2012 and May 2023. There were 27 females and 4 males with an age of (80.2±6.1) years. According to the Unified Classification System (UCS), 18 PPFs were classified as type Ⅴ.3B1 and 6 PPFs as type Ⅴ.3B2 after total knee arthroplasty and 7 PPFs as type Ⅳ.3C after total hip arthroplasty. The patients were fixated with a lateral single plate in 25 cases, and with lateral and medial dual plates in 6 cases. The surgical time, intraoperative blood loss, hospitalization time, postoperative weight-bearing time, fracture healing time, and knee joint function and complications during follow-up were recorded.Results:For the 25 patients undergoing fixation with a lateral single plate, the surgical time was (58.7±7.9) minutes, the intraoperative blood loss (78.0±15.1) mL, the hospitalization time (6.9±1.6) days, the postoperative weight-bearing time (5.9±1.4) days, and the follow-up time 37 (15, 51) months. For the 6 patients undergoing fixation with lateral and medial dual plates, the surgical time was (186.6±9.8) minutes, the intraoperative blood loss (1,256.7±231.2) mL, the hospitalization time (17.8±3.3) days, the postoperative weight-bearing time (3.6±0.6) days, and the follow-up time 17 (16, 21) months. The fracture healing time was (14.9±2.0) and (18.7±2.6) weeks, respectively, for patients fixed with single and double steel plates. By the scoring criteria of the American Hospital for Special Surgery (HSS), the knee joint function was evaluated at the last follow-up as excellent in 10 cases and as good in 15 cases for the 25 patients undergoing fixation with a lateral single plate, and as good for all the 6 patients undergoing fixation with lateral and medial dual plates. No patient experienced such complications as incision infection, bone nonunion, or internal fixation failure during the follow-up period.Conclusions:LCP fixation can achieve satisfactory outcomes in the treatment of PPF of the distal femur in the aged patients. As fixation with a single lateral femoral plate is suitable for most of the aged patients with PPF of the distal femur, it can be used as the first choice. Fixation with dual plates can provide stronger stability, but its indications should be strictly controlled.
7. Roscovitine rescuing neuronal loss and neuroinflammation in brain regions associated with Parkinson’s disease mice
Ye LIU ; Ya-Nan CHU ; Cen-Lu XU ; Jia-Cheng HE ; Bing-Yin SU ; Hao-Ran TAI ; Ya-Nan CHU ; Bing-Yin SU ; Hao-Ran TAI
Acta Anatomica Sinica 2023;54(6):635-643
[Abstract] Objective To investigate the effect and possible mechanism of cell cycle-dependent kinase (Cdk)5 inhibitor Roscovitine on 1-methyl4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced pathological changes in brain regions associated with Parkinson’ s disease (PD) model mice. Methods The effect of Roscovitine on the relative expression levels of P25 and Cdk5 proteins was detected by Western blotting in MPP
8.A multilevel model analysis of the association between reading and writing posture with myopia in primary and secondary school students
XU Huiyu, QIN Ran, ZHANG Jingshu, WANG Lu, WANG Yan, LUO Huijuan, GUO Xin
Chinese Journal of School Health 2023;44(12):1878-1882
Objective:
To explore the association between reading and writing posture with the occurrence of myopia in Chinese children and adolescents, so as to provide a reference for reducing its prevalence among primary and secondary school students.
Methods:
Using data from the 2020 survey on the current status of hyperopia reserve in primary and secondary school students from six provinces/cities, namely Beijing, Zhejiang, Chongqing, Shaanxi, Liaoning, and Henan selected by multi stage stratified cluster probability sampling method during November 2020 to June 2022. A total 16 782 students who completed the optometry examination of cycloplegia according to the Children and Adolescents Myopia Screening Standard and questionnaire survey were included for analyzing analyze the association between reading and writing posture with myopia.
Results:
The overall detection rate of myopia among primary and secondary school students was 45.7%, of which 35.0% were primary school students, 84.1% junior high school students, and 90.4% senior high school students. Poor reading and writing posture was found in 73.6% of primary and secondary school students. Adjusting for confounding factors such as gender, school period, region, outdoor time every day, and whether parents were myopic, the results of the multilevel Logistic regression showed that the following factors were positively correlated with myopia:poor reading and writing posture ( OR=1.17, 95%CI =1.07-1.28), never/occasionally reading and writing with a reading distance which was more than one foot away between the eyes and book ( OR=1.28, 95%CI=1.08-1.53, OR=1.23, 95%CI = 1.08- 1.40), teachers occasionally reminding the child of their reading and writing posture ( OR=1.13, 95%CI =1.01-1.25), and often/always reading and writing while lying down or with the face on the arm ( OR=1.15, 95%CI=1.01-1.32, OR=1.46, 95% CI = 1.17-1.82), always reading and writing with the head in the hand ( OR=1.56, 95%CI =1.20-2.01). Further, a negative correlation was detected between myopia and parents occasionally reminding their children of their reading and writing posture ( OR= 0.85 , 95%CI =0.76-0.96) ( P <0.05).
Conclusion
Poor reading and writing posture is a risk factor for the development of myopia in primary and secondary school students, and interventions for reading and writing posture need to be strengthened to reduce the occurrence of myopia among primary and secondary school students.
9.Association between MTHFR c.677C>T variant and erectile dysfunction among males attending fertility clinic.
Shun BAI ; Ming-Zhen LI ; Yang-Yang WAN ; Xue-Chun HU ; Yi-Xun LIU ; Xian-Hong TONG ; Tong-Hang GUO ; Lu ZONG ; Ran LIU ; Yuan-Qi ZHAO ; Ping XIANG ; Bo XU ; Xiao-Hua JIANG
Asian Journal of Andrology 2023;26(1):41-45
Genetic risk factors have been shown to contribute to the development of sexual dysfunction. However, the role of methylenetetrahydrofolate reductase (MTHFR) gene variants in the risk of erectile dysfunction (ED) remains unclear. In this study, we recruited 1254 participants who underwent ED assessed by the International Index of Erectile Function-5. The MTHFR c.677C>T variant was also measured by fluorescence polymerase chain reaction (PCR). No significant difference in the genotypic frequency of the MTHFR C677T polymorphism (CC, CT, and TT) was observed between men from the ED and non-ED groups. In addition, on binary logistic regression analysis, both crude and adjusted models showed that the risk of ED was not significantly associated with the C677T polymorphism. Interestingly, a significantly higher frequency of the 677TT polymorphism was found in severe and moderate ED (P = 0.02). The positive correlation between the MTHFR 677TT polymorphism and severe ED was confirmed by logistic regression analysis, even after adjusting for potential confounders (odds ratio [OR] = 2.46, 95% confidence interval [CI]: 1.15-5.50, P = 0.02). These findings suggest a positive correlation between the MTHFR 677TT polymorphism and the risk of severe ED. Identification of MTHFR gene polymorphisms may provide complementary information for ED patients during routine clinical diagnosis.
10.Epidemiological Characteristics and Spatiotemporal Distribution Patterns of Human Norovirus Outbreaks in China, 2012-2018.
Meng Ying ZHAI ; Lu RAN ; Jiao WANG ; Dan YE ; Wen Jing YANG ; Xu YAN ; Lin WANG
Biomedical and Environmental Sciences 2023;36(1):76-85
OBJECTIVE:
To clarify the epidemiological characteristics and spatial distribution patterns of human norovirus outbreaks in China, identify high-risk areas, and provide guidance for epidemic prevention and control.
METHODS:
This study analyzed 964 human norovirus outbreaks involving 50,548 cases in 26 provinces reported from 2012 to 2018. Epidemiological analysis and spatiotemporal scanning analysis were conducted to analyze the distribution of norovirus outbreaks in China.
RESULTS:
The outbreaks showed typical seasonality, with more outbreaks in winter and fewer in summer, and the total number of infected cases increased over time. Schools, especially middle schools and primary schools, are the most common settings of norovirus outbreaks, with the major transmission route being life contact. More outbreaks occurred in southeast coastal areas in China and showed significant spatial aggregation. The highly clustered areas of norovirus outbreaks have expanded northeast over time.
CONCLUSION
By identifying the epidemiological characteristics and high-risk areas of norovirus outbreaks, this study provides important scientific support for the development of preventive and control measures for norovirus outbreaks, which is conducive to the administrative management of high-risk settings and reduction of disease burden in susceptible areas.
Humans
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Gastroenteritis/epidemiology*
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Norovirus
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Caliciviridae Infections/epidemiology*
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Disease Outbreaks
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China/epidemiology*
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Genotype


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