1.Clinical efficacy of adjunctive perampanel in focal epilepsy patients≥12 years old
Xiaoli SHI ; Lixia LI ; Yanting LU ; Lang SHEN ; Xiangru LU ; Jinou ZHENG ; Yuan WU ; Lu YU
Chinese Journal of Neuromedicine 2024;23(1):48-54
Objective:To evaluate the clinical efficacy, tolerability and safety of adjunctive perampanel in focal epilepsy patients≥12 years old.Methods:One hundred and nineteen focal epilepsy patients≥12 years old accepted adjunctive perampanel in Department of Neurology, First Affiliated Hospital of Guangxi Medical University from July 2020 to December 2022 were chosen. At 1-3 months, 4-6 months, 7-9 months and 10-12 months after adjunctive perampanel, seizure frequency changes every 28 d, medication retention rate and adverse reactions were recorded to evaluate the clinical efficacy (a reduction in seizure frequency≥50% from baseline was defined as overall valid treatment), tolerability and safety of adjunctive perampanel. According to efficacy results after adjunctive perampanel of 4-6 months (short-term) and 10-12 months (long-term), these patients were divided into valid group and invalid group; and the influencing factors for short-term and long-term efficacy were analyzed.Results:At 1-3, 4-6, 7-9, 10-12 months after adjunctive perampanel, reduction in seizure frequency every 28 d was 66.7% (24.3%, 97.2%), 77.5% (48.6%, 100%), 94.6% (50%, 100%), 100% (70.9%, 100%), enjoying overall valid rate of 60.2% (59/98), 75.0% (7/76), 78.9% (45/57), 86.5% (32/37). The retention rate at 3, 6, 9 and 12 months after adjunctive perampanel was 85.2% (98/115), 67.9% (76/112), 54.3% (57/105), 41.1% (37/90). Adverse reactions were reported in 33 patents (27.7%), mainly with dizziness and secondly with mental symptoms. After short-term and long-term adjunctive perampanel, no significant difference was noted in gender, initial age of adjunctive perampanel, course of disease, etiology, EEG results, imaging results, number and type of combined anti-seizure drugs, or maximum dose of pirampanel between the valid group and invalid group ( P>0.05). Conclusion:Perampanel has good efficacy, tolerability and safety in adolescents and adults≥12 years old with focal epilepsy; no clear influencing factors for pirampanel valid treatment is found so far.
2.Epidemiological characteristics of stroke incidence from 2017 to 2022 in Songjiang District, Shanghai
Xuyan SU ; Yuzhuo WANG ; Yiling WU ; Jingyi HE ; Peng YANG ; Dongchen LANG ; Yonggen JIANG ; Genming ZHAO ; Yang ZHENG
Shanghai Journal of Preventive Medicine 2024;36(11):1065-1069
ObjectiveTo investigate the prevalence of stroke in Songjiang District from 2017 to 2022, to analyze the epidemiological characteristics of stroke incidence, so as to provide a scientific basis for the formulation of stroke prevention and control policies. MethodsData of new stroke incidence from 2017 to 2022 in Songjiang District were obtained from the Shanghai Stroke and Acute Myocardial Infarction Registration and Reporting Information System. In addition, different classifications such as time of onset, gender, age group and types of stroke, were statistically analyzed. Statistical indicators, such as the number of incidence, crude incidence rate, standardized incidence rate and average age of incidence were calculated simultaneously. Joinpoint software were used to calculate the annual change percentage (APC) and the trend of stroke incidence in Songjiang District. ResultsFrom 2017 to 2022, the newly reported cases of stroke were 12 988 in Songjiang District, the crude incidence rate was 325.76/105, and the standardized incidence rate was 127.58/105. The crude incidence rate and standardized incidence rate in males were 363.45/105 and 157.17/105, respectively, but 288.68/105 and 99.02/105 in females. The mean age of onset was (73.12±11.75) years, of which the mean age of onset was (70.86±11.96) years for men and (75.91±10.85) years for women. The incidence of stroke increased with age, rising rapidly after 60 years and reaching a peak in the age group of ≥ 80 years old. The crude incidence rate and standardized incidence rate of stroke in Songjiang District showed a downward trend from 2017 to 2022, with an APC of -6.20% and -8.01%, respectively (P=0.018, 0.007). The newly reported stroke was dominated by ischemic stroke, accounting for 82.81% of the total cases, with a crude incidence rate of 269.77/105 and a standardized rate of 103.84/105. The incidence of stroke presented seasonal characteristics, with the highest incidence in winter, accounting for 26.11% of the whole year. ConclusionThe incidence rate of stroke in Songjiang District shows a declined trend, but the overall incidence is still at a high level. The situation of prevention and control is still serious, with a heavy disease burden. It is necessary to strengthen health education and disease management for the elderly.
3.Correlation analysis of miR-4500,NGF expressions with preoperative magnetic resonance signs in breast cancer
Fan YANG ; Jing CHEN ; Bin ZHENG ; Jiao-Jiao LI ; Li ZHANG ; Gui-Feng BIAN ; Ya-Jing BIAN ; Xiao-Yan LANG
Journal of Regional Anatomy and Operative Surgery 2024;33(1):47-50
Objective To analyze the correlations of the expressions of miR-4500 and nerve growth factor(NGF)in breast cancer patients with preoperative magnetic resonance(MR)signs.Methods A total of 105 patients with breast cancer admitted to our hospital were selected,the mRNA expression levels of miR-4500 and NGF in breast cancer tissues and adjacent tissues of patients were detected by qRT-PCR,and the positive expression rates of NGF in breast cancer tissues and adjacent tissues were determined by immunohistochemistry method.The correlations of the expressions of miR-4500 and NGF in breast cancer tissues with clinicopathological features and MR signs of patients were analyzed.The targeting relationship between miR-4500 and NGF was predicted by the bioinformatics website,and the correla-tion between the expressions of the two was analyzed.Results Compared with the adjacent tissues,the expression level of miR-4500 in breast cancer tissue decreased(P<0.05),while the level of NGF mRNA and the positive expression rate of NGF increased(P<0.05).There was no significant difference in age,pathological type,tumor classification,parenchymal background,apparent diffusion coefficient or enhancement curve among different expressions of miR-4500 and NGF(P>0.05).The histological grade,lymph node metastasis,tumor diameter,tumor morphology,ring-like enhancement,and peritu-moral brain edema were related to the expressions of miR-4500 and NGF(P<0.05).The bioinformatics website prediction showed that miR-4500 and NGF had binding sites,and the expressions of miR-4500 and NGF mRNA in breast cancer tissues were negatively correlated(r=-0.576,P<0.05).Conclusion The expression of miR-4500 in breast cancer tissue is low,and the expression of NGF is high,which are correlated with the preoperative MR signs in patients,providing a molecu-lar basis for MR signs.
4.Bioequivalence study of glipizide tablets in Chinese healthy subjects
Fei-Lang ZHENG ; Lin-Zhong CHENG ; Hai-Ju LI ; Lu YANG ; Ze-Yuan LIU ; Su-Ling WANG
The Chinese Journal of Clinical Pharmacology 2024;40(11):1628-1632
Objective To study the bioequivalence of two glipizide tablets in healthy Chinese subjects.Methods Randomized,open,single-administration,two-period,self-cross-over trial design was used in the study.There were 28 Chinese healthy subjects in the fasted state and 28 in the fed state,complete repeat cross single dose oral glipizide tablets test preparation or reference preparation 5 mg.The plasma concentration of glipizide was determined by liquid chromatography/tandem mass spectrometry at different time points after administration.The non-compartmental model was used to calculate the pharmacokinetic parameters and evaluate the bioequivalence of the two formulations.Results The main pharmacokinetic parameters of glipizide in the fasted state were as follows:Cmax were(551.60±91.26)and(518.10±105.10)ng·mL-1;AUC0-t were(3 074.33±861.91)and(3 026.77±934.25)h·ng·mL-1;AUC0-∞ were(3 204.85±990.78)and(3 166.35±1 107.36)h ng·mL-1.The parameters of glipizide in the fed state were as follows:Cmax were(517.30±98.97)and(472.80±114.48)ng·mL-1;AUC0-t were(3 001.12±830.87)and(2 932.79±736.35)h·ng·mL-1;AUC0-∞ were(3 067.00±918.84)and(2 997.44±819.14)h·ng·mL-1.The 90%confidence interval of the Cmax,AUC0-t and AUC0-∞ of the test formulation and the reference formulation were from 80.00%to 125.00%.The incidence of adverse events in fasted group and fed group was no serious adverse events.Conclusion The two glipizide tablets were bioequivalent under fasted and fed conditions,and good security.
5.Ginsenoside Rb1 induces hepatic stellate cell ferroptosis to alleviate liver fibrosis via the BECN1/SLC7A11 axis
Lin LIFAN ; Li XINMIAO ; Li YIFEI ; Lang ZHICHAO ; Li YEPING ; Zheng JIANJIAN
Journal of Pharmaceutical Analysis 2024;14(5):744-757
Liver fibrosis is primarily driven by the activation of hepatic stellate cells(HSCs),a process associated with ferroptosis.Ginsenoside Rb1(GRb1),a major active component extracted from Panax ginseng,inhibits HSC activation.However,the potential role of GRb1 in mediating HSC ferroptosis remains un-clear.This study examined the effect of GRb1 on liver fibrosis both in vivo and in vitro,using CCl4-induced liver fibrosis mouse model and primary HSCs,LX-2 cells.The findings revealed that GRb1 effectively inactivated HSCs in vitro,reducing alpha-smooth muscle actin(a-SMA)and type Ⅰ collagen(Col1A1)levels.Moreover,GRb1 significantly alleviated CCl4-induced liver fibrosis in vivo.From a mechanistic standpoint,the ferroptosis pathway appeared to be central to the antifibrotic effects of GRb1.Specifically,GRb1 promoted HSC ferroptosis both in vivo and in vitro,characterized by increased glutathione depletion,malondialdehyde production,iron overload,and accumulation of reactive oxygen species(ROS).Intriguingly,GRb1 increased Beclin 1(BECN1)levels and decreased the System Xc-key subunit SLC7A11.Further experiments showed that BECN1 silencing inhibited GRb1-induced effects on HSC ferroptosis and mitigated the reduction of SLC7A11 caused by GRb1.Moreover,BECN1 could directly interact with SLC7A11,initiating HSC ferroptosis.In conclusion,the suppression of BECN1 counteracted the effects of GRb1 on HSC inactivation both in vivo and in vitro.Overall,this study highlights the novel role of GRb1 in inducing HSC ferroptosis and promoting HSC inactivation,at least partly through its modulation of BECN1 and SLC7A11.
7.Small molecules targeting protein-protein interactions for cancer therapy.
Defa WU ; Yang LI ; Lang ZHENG ; Huan XIAO ; Liang OUYANG ; Guan WANG ; Qiu SUN
Acta Pharmaceutica Sinica B 2023;13(10):4060-4088
Protein-protein interactions (PPIs) are fundamental to many biological processes that play an important role in the occurrence and development of a variety of diseases. Targeting the interaction between tumour-related proteins with emerging small molecule drugs has become an attractive approach for treatment of human diseases, especially tumours. Encouragingly, selective PPI-based therapeutic agents have been rapidly advancing over the past decade, providing promising perspectives for novel therapies for patients with cancer. In this review we comprehensively clarify the discovery and development of small molecule modulators of PPIs from multiple aspects, focusing on PPIs in disease, drug design and discovery strategies, structure-activity relationships, inherent dilemmas, and future directions.
8.Mechanism study of chlorogenic acid alleviating macrophage activation
Wei ZHENG ; Jing LANG ; Xifeng HUANG ; Rui XIAO ; He BAI ; Ji JIA
China Pharmacy 2023;34(21):2601-2607
OBJECTIVE To observe the effects of chlorogenic acid on the activation of macrophage induced by lipopolysaccharide (LPS), and to explore the role of triggering receptors expressed on myeloid cells-2 (TREM2) in the action. METHODS To find a suitable LPS concentration, the cells were cultured with 1, 10 and 100 ng/mL LPS for 24 h. The level of interleukin 6 (IL-6) in the cell culture supernatant and protein expression of inducible nitric oxide synthase (iNOS) in the cells were detected. To search for a suitable chlorogenic acid concentration, the cells were divided into control group, LPS group and three chlorogenic acid (0.01, 0.1 and 1 μmol/L)+LPS groups. The levels of tumor necrosis factor α (TNF-α) and IL-1β in the cell culture supernatant, the protein expressions of iNOS and TREM2 in the cells and cell viability were detected. To observe the effects of TREM2 in chlorogenic acid alleviating macrophage activation, TREM2-small interfering RNA (TREM2-siRNA) was taken to intervene in TREM2 protein expression. The cells were divided into control group, LPS group, chlorogenic acid+LPS group, TREM2-siRNA+chlorogenic acid+LPS group and SC-siRNA+chlorogenic acid+LPS group. After 24 h incubation, the levels of TNF- α and IL-1β in the cell culture supernatant and protein expressions of TREM2, iNOS and nuclear factor κB p65 (NF-κB p65) in the cells were detected. RESULTS 10 ng/mL LPS promoted IL-6 release and increased iNOS protein expression, and 10 ng/mL LPS was taken in the next experiments. Compared with the LPS group, 0.1 μmol/L chlorogenic acid decreased TNF-α jiaji1981@126.com and IL-1β levels, and down-regulated iNOS expression,meanwhile increased TREM2 expression without effect on cell viability, and 0.1 μmol/L chlorogenic acid was taken in the next experiments. Compared with the control group, the protein expressions of iNOS and NF- κB p65 in the LPS group were significantly increased (P<0.05); compared with the LPS group, the protein expressions of iNOS and NF- κB p65 in the chlorogenic acid+LPS group were significantly decreased, the protein expressions of TREM2 was significantly increased (P< 0.05); compared with the chlorogenic acid+LPS group, the protein expressions of iNOS and NF-κB p65 of TREM2-siRNA+ chlorogenic acid+LPS group were significantly increased, the protein expressions of TREM2 was significantly decreased (P<0.05). TREM2-siRNA could significantly reverse the above effects of chlorogenic acid, while SC-siRNA did not significantly affect the above anti-inflammatory effects of chlorogenic acid. CONCLUSIONS Chlorogenic acid can inhibit the LPS-induced macrophage activation, and its anti-inflammatory may be mediated by TREM2 protein.
9.Learning curve and feasibility study of percutaneous closure of patent foramen ovale guided solely by transthoracic echocardiography
Shihai TANG ; Yang ZHOU ; Lang LIU ; Fei ZHAO ; Bo ZHENG ; Jialin HE ; Jianpeng SHAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2023;39(6):321-325
Objective:To study the learning curve of percutaneous patent foramen ovale (PFO) occlusion guided solely by transthoracic echocardiography (TTE), as well as the success rate and safety of the learning curve.Methods:To retrospectively analyze these patients with indications for PFO occlusion admitted in our department from April 2021 to April 2022, and obtained 100 samples the author's initial cases guided solely by TTE, including 25 men and 75 women, with a mean age of (48.22±10.44) years old.Analyze preoperative baseline data: gender, age, height, weight, body mass index, the tunnel length and size of the PFO measured by transesophageal echocardiography, the grade of contrast-transcranial doppler test, combined atrial septal aneurysm, etc.Operation time, success rate, and complications were analyzed in all patients.Results:With the accumulation of cases, the operation time gradually shortened, accumulated to about 50 cases, the operation time has significantly shortened ( P<0.05), and the learning curve was leveled off after 50 cases ( P<0.05), there was statistical difference.The comparison of the success rate and complication of cases within the learning curve and those after completing the learning curve was no statistical significance( P>0.05). Conclusion:The learning curve of percutaneousc closure of patent foramen ovale guided solely by TTE is long, requiring about 50 cases to complete the learning curve. The success rate and safety of the learning curve are high. This procedure is worth popularizing.
10.Risk factors for neonatal asphyxia and establishment of a nomogram model for predicting neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture: a multicenter study.
Fang JIN ; Yu CHEN ; Yi-Xun LIU ; Su-Ying WU ; Chao-Ce FANG ; Yong-Fang ZHANG ; Lu ZHENG ; Li-Fang ZHANG ; Xiao-Dong SONG ; Hong XIA ; Er-Ming CHEN ; Xiao-Qin RAO ; Guang-Quan CHEN ; Qiong YI ; Yan HU ; Lang JIANG ; Jing LI ; Qing-Wei PANG ; Chong YOU ; Bi-Xia CHENG ; Zhang-Hua TAN ; Ya-Juan TAN ; Ding ZHANG ; Tie-Sheng YU ; Jian RAO ; Yi-Dan LIANG ; Shi-Wen XIA
Chinese Journal of Contemporary Pediatrics 2023;25(7):697-704
OBJECTIVES:
To investigate the risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture and establish a nomogram model for predicting the risk of neonatal asphyxia.
METHODS:
A retrospective study was conducted with 613 cases of neonatal asphyxia treated in 20 cooperative hospitals in Enshi Tujia and Miao Autonomous Prefecture from January to December 2019 as the asphyxia group, and 988 randomly selected non-asphyxia neonates born and admitted to the neonatology department of these hospitals during the same period as the control group. Univariate and multivariate analyses were used to identify risk factors for neonatal asphyxia. R software (4.2.2) was used to establish a nomogram model. Receiver operator characteristic curve, calibration curve, and decision curve analysis were used to assess the discrimination, calibration, and clinical usefulness of the model for predicting the risk of neonatal asphyxia, respectively.
RESULTS:
Multivariate logistic regression analysis showed that minority (Tujia), male sex, premature birth, congenital malformations, abnormal fetal position, intrauterine distress, maternal occupation as a farmer, education level below high school, fewer than 9 prenatal check-ups, threatened abortion, abnormal umbilical cord, abnormal amniotic fluid, placenta previa, abruptio placentae, emergency caesarean section, and assisted delivery were independent risk factors for neonatal asphyxia (P<0.05). The area under the curve of the model for predicting the risk of neonatal asphyxia based on these risk factors was 0.748 (95%CI: 0.723-0.772). The calibration curve indicated high accuracy of the model for predicting the risk of neonatal asphyxia. The decision curve analysis showed that the model could provide a higher net benefit for neonates at risk of asphyxia.
CONCLUSIONS
The risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture are multifactorial, and the nomogram model based on these factors has good value in predicting the risk of neonatal asphyxia, which can help clinicians identify neonates at high risk of asphyxia early, and reduce the incidence of neonatal asphyxia.
Infant, Newborn
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Humans
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Male
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Pregnancy
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Female
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Nomograms
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Retrospective Studies
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Cesarean Section
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Risk Factors
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Asphyxia Neonatorum/etiology*

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