1.Terms Related to The Study of Biomacromolecular Condensates
Ke RUAN ; Xiao-Feng FANG ; Dan LI ; Pi-Long LI ; Yi LIN ; Zheng WANG ; Yun-Yu SHI ; Ming-Jie ZHANG ; Hong ZHANG ; Cong LIU
Progress in Biochemistry and Biophysics 2025;52(4):1027-1035
Biomolecular condensates are formed through phase separation of biomacromolecules such as proteins and RNAs. These condensates exhibit liquid-like properties that can futher transition into more stable material states. They form complex internal structures via multivalent weak interactions, enabling precise spatiotemporal regulations. However, the use of inconsistent and non-standardized terminology has become increasingly problematic, hindering academic exchange and the dissemination of scientific knowledge. Therefore, it is necessary to discuss the terminology related to biomolecular condensates in order to clarify concepts, promote interdisciplinary cooperation, enhance research efficiency, and support the healthy development of this field.
2.The Role of AMPK in Diabetic Cardiomyopathy and Related Intervention Strategies
Fang-Lian LIAO ; Xiao-Feng CHEN ; Han-Yi XIANG ; Zhi XIA ; Hua-Yu SHANG
Progress in Biochemistry and Biophysics 2025;52(10):2550-2567
Diabetic cardiomyopathy is a distinct form of cardiomyopathy that can lead to heart failure, arrhythmias, cardiogenic shock, and sudden death. It has become a major cause of mortality in diabetic patients. The pathogenesis of diabetic cardiomyopathy is complex, involving increased oxidative stress, activation of inflammatory responses, disturbances in glucose and lipid metabolism, accumulation of advanced glycation end products (AGEs), abnormal autophagy and apoptosis, insulin resistance, and impaired intracellular Ca2+ homeostasis. Recent studies have shown that adenosine monophosphate-activated protein kinase (AMPK) plays a crucial protective role by lowering blood glucose levels, promoting lipolysis, inhibiting lipid synthesis, and exerting antioxidant, anti-inflammatory, anti-apoptotic, and anti-ferroptotic effects. It also enhances autophagy, thereby alleviating myocardial injury under hyperglycemic conditions. Consequently, AMPK is considered a key protective factor in diabetic cardiomyopathy. As part of diabetes prevention and treatment strategies, both pharmacological and exercise interventions have been shown to mitigate diabetic cardiomyopathy by modulating the AMPK signaling pathway. However, the precise regulatory mechanisms, optimal intervention strategies, and clinical translation require further investigation. This review summarizes the role of AMPK in the prevention and treatment of diabetic cardiomyopathy through drug and/or exercise interventions, aiming to provide a reference for the development and application of AMPK-targeted therapies. First, several classical AMPK activators (e.g., AICAR, A-769662, O-304, and metformin) have been shown to enhance autophagy and glucose uptake while inhibiting oxidative stress and inflammatory responses by increasing the phosphorylation of AMPK and its downstream target, mammalian target of rapamycin (mTOR), and/or by upregulating the gene expression of glucose transporters GLUT1 and GLUT4. Second, many antidiabetic agents (e.g., teneligliptin, liraglutide, exenatide, semaglutide, canagliflozin, dapagliflozin, and empagliflozin) can promote autophagy, reverse excessive apoptosis and autophagy, and alleviate oxidative stress and inflammation by enhancing AMPK phosphorylation and its downstream targets, such as mTOR, or by increasing the expression of silent information regulator 1 (SIRT1) and peroxisome proliferator-activated receptor‑α (PPAR‑α). Third, certain anti-anginal (e.g., trimetazidine, nicorandil), anti-asthmatic (e.g., farrerol), antibacterial (e.g., sodium houttuyfonate), and antibiotic (e.g., minocycline) agents have been shown to promote autophagy/mitophagy, mitochondrial biogenesis, and inhibit oxidative stress and lipid accumulation via AMPK phosphorylation and its downstream targets such as protein kinase B (PKB/AKT) and/or PPAR‑α. Fourth, natural compounds (e.g., dihydromyricetin, quercetin, resveratrol, berberine, platycodin D, asiaticoside, cinnamaldehyde, and icariin) can upregulate AMPK phosphorylation and downstream targets such as AKT, mTOR, and/or the expression of nuclear factor erythroid 2-related factor 2 (Nrf2), thereby exerting anti-inflammatory, anti-apoptotic, anti-pyroptotic, antioxidant, and pro-autophagic effects. Fifth, moderate exercise (e.g., continuous or intermittent aerobic exercise, aerobic combined with resistance training, or high-intensity interval training) can activate AMPK and its downstream targets (e.g., acetyl-CoA carboxylase (ACC), GLUT4, PPARγ coactivator-1α (PGC-1α), PPAR-α, and forkhead box protein O3 (FOXO3)) to promote fatty acid oxidation and glucose uptake, and to inhibit oxidative stress and excessive mitochondrial fission. Finally, the combination of liraglutide and aerobic interval training has been shown to activate the AMPK/FOXO1 pathway, thereby reducing excessive myocardial fatty acid uptake and oxidation. This combination therapy offers superior improvement in cardiac dysfunction, myocardial hypertrophy, and fibrosis in diabetic conditions compared to liraglutide or exercise alone.
3.Preparation modification strategies for clinical treatment drugs of Parkinson's disease
Meng-jiao HE ; Yi-fang XIAO ; Xiang-an-ni KONG ; Zhi-hao LIU ; Xiao-guang WANG ; Hao FENG ; Jia-sheng TU ; Qian CHEN ; Chun-meng SUN
Acta Pharmaceutica Sinica 2024;59(3):574-580
Parkinson's disease (PD) is a chronic neurodegenerative disease. At present, levodopa and other drugs are mainly used for dopamine supplementation therapy. However, the absorption of levodopa in the gastrointestinal tract is unstable and its half-life is short, and long-term use of levodopa will lead to the end-of-dose deterioration, dyskinesia, the "ON-OFF" phenomenon and other symptoms. Therefore, new preparations need to be developed to improve drug efficacy, reduce side effects or improve compliance of patients. Based on the above clinical needs, this review briefly introduced the preparation modification strategies for the treatment of PD through case analysis, in order to provide references for the research and development of related preparations.
4.Therapeutic Efficacy of Wuhu Decoction Plus Tingli Dazao Xiefei Decoction Combined with Budesonide Atomization for Children with Bronchopneumonia and Its Effects on Inflammatory Response
Shen-Hong TANG ; Yi WU ; Xia YU ; Xiao-Fang WANG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(4):900-905
Objective To investigate the clinical efficacy of Wuhu Decoction plus Tingli Dazao Xiefei Decoction combined with Budesonide atomization for the treatment of pediatric bronchopneumonia with phlegm-heat obstructing the lung syndrome,and to observe its effect on inflammatory response.Methods Seventy children with bronchopneumonia of phlegm-heat obstructing the lung type were randomly divided into an observation group and a control group,with 35 cases in each group.The children in the control group were treated with atomized inhalation of Budesonide suspension,and the children in the observation group were treated with Wuhu Decoction plus Tingli Dazao Xiefei Decoction orally on the basis of treatment for the control group.Both groups were treated for a period of 7 days.The changes in the traditional Chinese medicine(TCM)syndrome scores and the serum levels of inflammatory factors of interleukin 6(IL-6),procalcitonin(PCT),and hypersensitive C-reactive protein(hs-CRP)in the two groups were observed before and after the treatment.Moreover,the clinical efficacy,time for the relief of symptoms and signs,and the incidence of adverse reactions in the two groups were compared.Results(1)After 7 days of treatment,the total effective rate of the observation group was 91.43%(32/35),and that of the control group was 71.43%(25/35).The intergroup comparison(tested by chi-square test)showed that the therapeutic efficacy of the observation group was significantly superior to that of the control group(P<0.05).(2)After treatment,the TCM syndrome scores of the children in both groups were significantly lower than those before treatment(P<0.05),and the decrease in the observation group was significantly superior to that in the control group(P<0.01).(3)After treatment,the time for the relief of symptoms and signs such as wheezing,cough,lung rales,constipation and fever in the observation group was significantly shortened compared with that in the control group(P<0.01).(4)After treatment,the serum IL-6,PCT and hs-CRP levels in both groups were significantly lower than those before treatment(P<0.05),and the reduction in the observation group was significantly superior to that in the control group(P<0.01).(5)The incidence of adverse reactions in the observation group was 5.71%(2/35)and that in the control group was 8.57%(3/35),while the difference was not statistically significant between the two groups(P>0.05).Conclusion Wuhu Decoction plus Tingli Dazao Xiefei Decoction combined with Budesonide atomization exert certain effect for the treatment of pediatric bronchopneumonia with phlegm-heat obstructing the lung syndrome,which can effectively relieve the clinical symptoms and alleviate the inflammatory response of the children.
5.Comparison of the predictive value of new simplified insulin resistance assessment indexes in identifying left ventricular subclinical dysfunction in T2DM patients
Yan-Yan CHEN ; Meng-Ying LI ; Jie ZHOU ; Jian-Fang FU ; Ying ZHANG ; Yi WANG ; Cheng WANG ; Xiang-Yang LIU ; Sheng-Jun TA ; Li-Wen LIU ; Ze-Ping LI ; Xiao-Miao LI
Medical Journal of Chinese People's Liberation Army 2024;49(2):137-143
Objective To investigate the predictive value of new simplified insulin resistance(IR)assessment indexes in identifying subclinical left ventricular systolic function impairment in patients with type 2 diabetes mellitus(T2DM).Methods A total of 150 T2DM patients with preserved left ventricular ejection fraction(LVEF≥50%)who were admitted to Department of Endocrinology of the First Affiliated Hospital of Air Force Medical University from June 2021 to December 2021 were retrospectively analyzed.All patients underwent two-dimensional speckle tracking echocardiography to measure left ventricular global longitudinal strain(GLS).According to GLS value,the subjects were divided into the normal group(GLS≥18%group,n=80)and the impaired group(GLS<18%group,n=70).Some new simplified IR assessment indicators were calculated and compared between the two groups,including body mass index(BMI),TG/HDL-C ratio,triglyceride-glucose(TyG)index,TyG-BMI index,TyG-WHR and metabolic score for IR(METS-IR).Correlation between the GLS and the new simplified IR assessment indexes was analyzed.The receiver operating characteristic(ROC)curve was used to analyze the diagnostic efficacy of different simplified IR assessment indexes,with the area under the curve(AUC)calculated.Furthermore,according to whether the subjects were complicated with hypertension,binary logistics regression analysis was performed to explore the independent correlation between the simplified IR assessment index and GLS<18%.Results Total 150 were included with aged(54.5±13.7)years with 96(64.0%)men and 54(36.0%)women.Compared with the GLS≥18%group,the TG/HDL-C ratio,TyG index,TyG-BMI,and METS-IR of subjects in the GLS<18%group were significantly increased(P<0.05).Pearson correlation analysis showed that TG/HDL-C ratio,TyG index,TyG-BMI,TyG-WHR,and METS-IR were negatively correlated with GLS(P<0.05).ROC analysis showed that TyG index had a certain predictive value for the evaluation of GLS<18%(AUC=0.678,95%CI 0.591-0.765,P<0.001).Stratification based on hypertension and further adjusting for confounding factors,TyG index remains significantly associated with GLS<18%(OR=3.249,95%CI 1.045-10.103,P=0.042).Conclusions The novel simplified insulin resistance evaluation indexes are closely associated with left ventricular subclinical systolic dysfunction in T2DM patients with preserved ejection fraction.TyG index is an effective index to identify left ventricular subclinical dysfunction in these populations.
6.Expression profile and function of miRNAs in macrophages infected with Mycobacterium
Ping-ping JIA ; Yi ZHANG ; Shi-ze PENG ; Qian-qian ZHAO ; Xiao-xiao WU ; Fang-qi SHEN ; Kai SUN ; Shan CEN
Acta Pharmaceutica Sinica 2024;59(6):1674-1679
The interaction between
7.Design of nurse-driven intelligent individualized medication management system
Xiao-Yan DENG ; Xiao-Fang HU ; Yan GUO ; Chun-Li WANG ; Yi-Fan HUANG ; Tian REN
Chinese Medical Equipment Journal 2024;45(11):44-48
Objective To design a nurse-driven intelligent individualized medication management system to enhance the whole-course patient management efficiency.Methods The system consisted of an in-hospital PC terminal,a mobile patient terminal and a mobile medical terminal.The in-hospital PC terminal was developed with B/S architecture and.NET;the patient and medical terminals both were realized with Java.The patient terminal was made up of a personal information module,a data reporting module and a message center module,and the in-hospital PC and medical terminals were composed of several modules for patient management,data management,statistical analysis and system management.Results The system developed provided whole-course intelligent management for out-of-hospital patients comprehensively,continuously and actively,lowering acute morbidity and nurses'workload for follow-up.Conclusion The system developed enhances patients'awareness of self-health management and improves nurses'efficiency for individualized medication management.[Chinese Medical Equipment Journal,2024,45(11):44-48]
8.Electrochemical Sensor for Sensitive Detection of Cadmium(Ⅱ)and Lead(Ⅱ)Based on Zeolitic Imidazolate Framework-8/Multi-Walled Carbon Nanotubes
Xiao-Geng FENG ; Di SUN ; Jing-Yi SUN ; Ying HU ; Wen-Qian FANG ; Ying XIONG
Chinese Journal of Analytical Chemistry 2024;52(4):541-549
A a novel composite ZIF-8/MWCNT was synthesized by combining zeolitic imidazolate framework-8(ZIF-8)with multi-walled carbon nanotubes(MWCNT).The composite was modified on glassy carbon electrode(GCE)to obtain ZIF-8/MWCNT/GCE,which was served as an effective electrochemical sensor for detection of Pb2+ and Cd2+.Benefiting from the high electrical conductivity of MWCNT and the synergistic effect between ZIF-8 and MWCNT,ZIF-8/MWCNT showed excellent electrocatalytic activity in individual and simultaneous detection of Cd2+ and Pb2+.Under the optimized conditions,the linear ranges were 0.03?8.00 μmol/L and 0.03?6.00 μmol/L with corresponding limits of detection(S/N=3)of 0.019 and 0.035 μmol/L for individual detection of Cd2+and Pb2+,respectively.Whereas for simultaneous detection of Cd2+and Pb2+in their mixture solutions,the linear ranges were 0.03?5.00 μmol/L and 0.03?5.00 μmol/L with corresponding limits of detection(S/N=3)of 0.022 and 0.048 μmol/L,respectively.In addition,the sensor exhibited good stability,reproducibility and anti-interference ability.Moreover,the sensor showed good feasibility and accuracy for determination of Cd2+ and Pb2+ in actual river water samples with spiking recoveries of 98.1%?104.0%and 98.3%?102.2%,respectively.
9.Cerebral oxygen metabolism and brain electrical activity of healthy full-term neonates in high-altitude areas:a multicenter clinical research protocol
Bi ZE ; Jin GAO ; Xiao-Fen ZHAO ; Yang-Fang LI ; Tie-Song ZHANG ; Xiao-Mei LIU ; Hui MAO ; Ming-Cai QIN ; Yi ZHANG ; Yong-Li YANG ; Chun-Ye HE ; Yan ZHAO ; Kun DU ; Lin LIU ; Wen-Hao ZHOU ; Chinese High Altitude Neonatal Medicine Alliance
Chinese Journal of Contemporary Pediatrics 2024;26(4):403-409
Further evidence is needed to explore the impact of high-altitude environments on the neurologic function of neonates.Non-invasive techniques such as cerebral near-infrared spectroscopy and amplitude-integrated electroencephalography can provide data on cerebral oxygenation and brain electrical activity.This study will conduct multiple cerebral near-infrared spectroscopy and amplitude-integrated electroencephalography monitoring sessions at various time points within the first 3 days postpartum for healthy full-term neonates at different altitudes.The obtained data on cerebral oxygenation and brain electrical activity will be compared between different altitudes,and corresponding reference ranges will be established.The study involves 6 participating centers in the Chinese High Altitude Neonatal Medicine Alliance,with altitude gradients divided into 4 categories:800 m,1 900 m,2 400 m,and 3 500 m,with an anticipated sample size of 170 neonates per altitude gradient.This multicenter prospective cohort study aims to provide evidence supporting the impact of high-altitude environments on early brain function and metabolism in neonates.[Chinese Journal of Contemporary Pediatrics,2024,26(4):403-409]
10.Clinical characteristics of children on prolonged mechanical ventilation due to different primary diseases
Jun-Zhen ZHU ; Zheng LI ; Li-Dan CUI ; Shi-Yue MEI ; Xiao-Lei LI ; Bing FANG ; Su-Yun QIAN ; Yi-Bing CHENG
Chinese Journal of Contemporary Pediatrics 2024;26(5):481-485
Objective To investigate the differences in clinical characteristics among children on prolonged mechanical ventilation(PMV)due to different primary diseases.Methods A retrospective analysis was performed on the clinical data of 59 pediatric patients requiring PMV from July 2017 to September 2022.According to the primary disease,they were divided into respiratory disease(RD)group,central nervous system(CNS)group,neuromuscular disease(NMD)group,and other disease group.The four groups were compared in terms of general information,treatment,and outcome.Results There were significant differences among the four groups in age,body weight,Pediatric Logistic Organ Dysfunction-2(PELOD-2)score,Pediatric Risk of Mortality Ⅲ(PRISM Ⅲ)score,analgesic and sedative treatment,nutrition supply,rehabilitation treatment,tracheotomy,successful ventilator weaning,and outcomes(P<0.05).Compared with the RD group,the CNS group and the other disease group had a significantly higher age and a significantly higher proportion of children receiving rehabilitation treatment,and the CNS group had a significantly higher proportion of children receiving tracheotomy(P<0.008).Compared with the other disease group,the CNS group and the NMD group had significantly lower PELOD-2 and PRISM Ⅲ scores,and the CNS group had a significantly higher proportion of children with successful ventilator weaning and a significantly higher proportion of children who were improved and discharged(P<0.008).Conclusions There are differences in clinical characteristics among children receiving PMV due to different etiologies.Most children in the RD group have a younger age,and children in the CNS group have a relatively good prognosis.

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