1.Research on the screening efficiency of Thalassemia based on an automated evaluation software.
Jun HU ; Huan LIANG ; Limei DUAN ; Jianqiang GAO
Chinese Journal of Medical Genetics 2026;43(4):281-287
OBJECTIVE:
To explore the efficacy of a Thalassemia risk assessment software for the screening of thalassemia mutation carriers and distribution of thalassemia genotypes detected by screening.
METHODS:
A total of 6 040 individuals were evaluated at Leshan Maternal and Child Health Care Hospital between 2022 and 2024 using the commonly used clinical thalassemia risk assessment method and the thalassemia screening software, respectively, and the performance indicators of the two methods were compared and analyzed against the result of thalassemia gene testing. This study was approved by the Ethics Committee of our hospital (Ethics No.: LfyLL[2022]005).
RESULTS:
The high-risk rate by the thalassemia screening software was 11.19%, with a sensitivity of 95.12%, specificity of 93.28%, positive predictive value of 43.20%, negative predictive value of 99.72%, and the area under the ROC curve (AUC) was 0.942. The thalassemia gene detection rate of the high-risk samples screened was 4.83%. The high-risk screening rate of the conventional method was 2.50%, with a sensitivity of 51.22%, specificity of 93.28%, positive predictive value of 80.79%, negative predictive value of 97.40%, and the AUC was 0.754. The thalassemia gene detection rate of the high-risk samples was 2.02%.
CONCLUSION
The software can effectively detect thalassemia carriers and significantly reduce the missed detection compared with conventional method, thereby significantly improve the efficacy of screening.
Humans
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Thalassemia/diagnosis*
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Software
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Female
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Genetic Testing/methods*
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Male
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Mutation
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Adult
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Genotype
;
ROC Curve
;
Risk Assessment
2.Primary Cilium-mediated Mechano-metabolic Coupling: Cross-system Homeostatic Regulation of The Nervous, Bone, Vascular, and Renal Systems
Liang-Chen DUAN ; Hao-Liang HU ; Shu-Zhi WANG ; Jia-Long YAN ; Lin-Xi CHEN
Progress in Biochemistry and Biophysics 2026;53(3):577-592
Primary cilia—those solitary, microtubule-based projections extending from the surface of most eukaryotic cells—are increasingly recognized not merely as cellular appendages, but as sophisticated signaling hubs. By compartmentalizing specific receptors (e.g., GPCRs) and effectors within a microdomain guarded by the transition zone, these organelles function effectively as high-gain sensors capable of integrating mechanical stimuli with metabolic cues. In this review, we examine the pivotal role of primary cilia across the nervous, bone-vascular, and renal landscapes, arguing for a unified “mechano-metabolic coupling” framework. Here, conserved ciliary modules are not static; rather, they are differentially deployed to uphold systemic homeostasis. Within the central nervous system, we position primary cilia as upstream integrators. We highlight how hypothalamic neuronal cilia concentrate metabolic receptors, such as the melanocortin 4 receptor (MC4R), to interpret energy status. Moreover, the recent identification of serotonergic “axon-cilium synapses” points to a direct mode of neurotransmission, wherein 5-HT6 receptors drive nuclear signaling and chromatin accessibility to rapidly modulate gene expression. Through these mechanisms, central cilia modulate sympathetic tone and neuroendocrine output, effectively establishing the mechanical and metabolic “boundary conditions” under which peripheral organs operate. Dysfunction in these central hubs is linked to obesity and neurodevelopmental disorders, including Bardet-Biedl syndrome. In peripheral tissues, cilia serve as versatile mechanotransducers that convert physical forces into biochemical responses. Regarding the bone-vascular system, we discuss the translation of mechanical loads and fluid shear stress into structural remodeling. In osteoblasts, specifically, ciliary integrity is intrinsically linked to cholesterol and glucose metabolism, fine-tuning the balance between Hedgehog and Wnt/β-catenin signaling to govern osteogenesis and bone repair. A similar dynamic exists in the vasculature, where endothelial cilia sense shear stress to modulate KLF4 expression and endothelial-to-mesenchymal transition—processes critical for valvulogenesis and vascular remodeling. Meanwhile, in the kidney, tubular cilia act as terminal effectors within a “shear-cilia-metabolism” axis. Here, fluid shear stress engages ciliary signaling to trigger AMPK-mediated lipophagy and mitochondrial biogenesis, thereby securing the ATP supply required for solute transport. Notably, dysregulation of this axis leads to metabolic reprogramming and aberrant proliferation, acting as a hallmark driver of cystogenesis in polycystic kidney disease (PKD). Crucially, this review attempts to dissect the often-conflated logic of cross-system integration by distinguishing 3 non-equivalent pathways: direct communication via ciliary extracellular vesicles, though this remains largely hypothetical in long-range signaling; “physiology-mediated cascades”, where ciliary dysfunction in a single organ—such as the kidney—precipitates systemic pathology through hemodynamic and metabolic shifts (e.g., altered blood pressure, fluid volume, or uremic toxins); and “parallel molecular defects”, where shared genetic mutations in ubiquitous components like the IFT machinery cause simultaneous, independent failures across multiple organ systems. Building on these distinctions, we propose a nested-loop model that links central set-points with peripheral feedback via physiological variables. Furthermore, we construct a “causality-to-translation” roadmap that pinpoints structural repair (e.g., targeting IFT assembly) and metabolic rescue (e.g., AMPK activation or autophagy induction) as promising therapeutic avenues. Ultimately, this framework provides a theoretical basis for deciphering the shared pathological mechanisms of multisystem ciliopathies, offering a strategic guide for the development of targeted interventions that go beyond symptomatic treatment.
3.Analysing differences in volatile organic compounds between purple-brown and yellow-brown Ziziphi Spinosae Semen based on HS-GC-IMS technology
DUAN Xiao ; KANG Bingtao ; ZHAO Fan ; YAN Yonggang ; ZHANG Gang ; PENG Liang
Drug Standards of China 2026;27(1):0028-0036
Objective: To systematically compare the types and contents of volatile organic compounds (VOCs) in purplish-brown and yellow-brown Ziziphi Spinosae Semen, and to provide a scientific basis for their rapid identification and quality evaluation.
Methods: Headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) was employed to determine the VOCs in two colored samples. GC-IMS spectra and fingerprint profiles were established, and chemometric methods including principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) were applied to visualize the differences in volatile components.
Results: A total of 44 VOCs were identified, including 1 aldehyde, 9 esters, 10 ketones, 2 enals, 14 alcohols, 3 acids, 2 furans, 1 disulfide, and 2 hydrocarbons. Alcohols and esters were the main volatile components. The fingerprint profiles showed high consistency within groups but significant differences between groups. Both PCA and PLS-DA effectively distinguished the two sample types. Compounds such as pentanol, methyl butyrate, 2-ethylfuran, 2-hexanol, and 2-methylpropenal were identified as key markers for differentiation.
Conclusion: HS-GC-IMS combined with chemometrics accurately distinguishes the volatile compounds of Ziziphi Spinosae Semen with different colors. This method is rapid, sensitive, and suitable for quality control and rapid authentication of Ziziphi Spinosae Semen.
4.Inverse distance weight interpolation method for missing data of PM2.5 spatiotemporal series
Yurou LIANG ; Hongling WU ; Weipeng WANG ; Feng CHENG ; Ping DUAN
Journal of Environmental and Occupational Medicine 2025;42(2):171-178
Background Fine particulate matter (PM2.5) monitoring stations may generate missing data for a certain period of time due to various factors. This data loss will adversely affect air quality assessment and pollution control decision-making. Objective To propose an inverse distance weighted (IDW) spatiotemporal interpolation method based on particle swarm optimization (PSO) to interpolate and fill missing PM2.5 spatiotemporal sequence data and increase interpolation accuracy. Methods An interpolation experiment was designed into two parts. The first part used hourly PM2.5 observational data from four moments on January 1, 2017 in the Yangtze River Delta region. The second part employed daily PM2.5 observational data from the first 10 d of January 2017 in the Beijing-Tianjin-Hebei region. Interpolation accuracy was evaluated using four metrics: root mean square error (RMSE), mean absolute error (MAE), mean absolute percentage error (MAPE), and mean relative error (MRE). Results IDW spatiotemporal interpolation method optimized with PSO significantly improved the accuracy of filling missing PM2.5 spatiotemporal sequence data. In the hourly-scale experiment conducted in the Yangtze River Delta region, compared to a distance index of 2, the accuracy metrics RMSE, MAE, MAPE, and MRE generated by the proposed method improved on average by 0.17 μg·m−3, 0.27 μg·m−3, 0.17%, and 0.01%, respectively. The PM2.5 spatial field maps generated for four moments based on this method clearly illustrated the spatiotemporal distribution characteristics of hourly PM2.5 concentrations in the Yangtze River Delta region. In the daily-scale experiment conducted in the Beijing-Tianjin-Hebei region, the PSO-optimized distance index outperformed the traditional method, with interpolation accuracy improvements of approximately 0.215 μg·m−3, 0.283 μg·m−3, 0.174%, and 0.014%, respectively. Furthermore, the seasonal PM2.5 spatial field maps generated by this method revealed the spatiotemporal distribution characteristics of PM2.5 concentrations in the Beijing-Tianjin-Hebei region across different seasons, further validating the effectiveness and applicability of this method. Conclusion The IDW spatiotemporal interpolation method optimized with PSO is highly accurate and reliable for interpolating the missing data in the Yangtze River Delta region and the Beijing-Tianjin-Hebei region, providing valuable insights for air pollution control and public health protection.
5.Characterization of postural stability in elderly patients with idiopathic normal pressure hydrocephalus
Xiaoxiao LIANG ; Jiejiao ZHENG ; Linru DUAN ; Xi CHEN ; Tingyu ZHANG
Chinese Journal of Tissue Engineering Research 2025;29(6):1208-1213
BACKGROUND:Impaired postural control is an important risk factor for falls and secondary damage in patients with idiopathic normal pressure hydrocephalus.Most of the existing studies have analyzed the gait parameters of patients during straight-line walking,but few have analyzed the postural stability characteristics of patients during static and dynamic activities. OBJECTIVE:To analyze the characteristics of postural stability in elderly patients with idiopathic normal pressure hydrocephalus. METHODS:Twenty-two patients clinically diagnosed with idiopathic normal pressure hydrocephalus at the Department of Neurosurgery,Huadong Hospital Affiliated to Fudan University,Shanghai,China,from September 2022 to February 2023 were selected as the patient group,and 18 healthy accompanying family members were selected as the healthy control group.The postural stability characteristics of the subjects were assessed using the Timed Up-and-Go Test,Multi-Directional Reach Test,Berg Balance Scale,and Static Balance Function Test(reaction time,speed of movement,directional control,maximum offset distance,and endpoint travel). RESULTS AND CONCLUSION:The time required to complete the Timed Up-and-Go Test was significantly longer in the patient group than in the healthy control group(P<0.05).The results of the stretching test in the four directions of anterior,posterior,leftand right were significantly lower in the patient group than in the healthy control group(P<0.05).The Berg Balance Scale scores in the patient group were lower than those in the healthy control group(P<0.05).In the Static Balance Function Test,the results of reaction,movement speed,directional control,maximum offset distance and endpoint travel index were smaller in the patient group than the healthy control group(P<0.05).To conclude,patients with idiopathic normal pressure hydrocephalus exhibit overall postural control deficits,and impaired reaction and execution abilities make these patients unable to make timely and accurate motor responses in the face of disturbances from internal or external sources,resulting in postural instability and increasing the risk of falls.
6.Drying kinetics of Salviae Miltiorrhizae Radix et Rhizoma and dynamics of active components in drying process.
Yu-Qin LI ; Xiu-Xiu SHA ; Zhe ZHANG ; Shu-Lan SU ; Liang NI ; Sheng GUO ; Hui YAN ; Da-Wei QIAN ; Jin-Ao DUAN
China Journal of Chinese Materia Medica 2025;50(1):128-139
This study explored the drying kinetics of Salviae Miltiorrhizae Radix et Rhizoma(SM), established the suitable models simulating the drying kinetics, and then analyzed the dynamic changes of active components during the drying processes with different methods, aiming to provide a basis for the establishment of suitable drying methods and the quality control of SM. The drying kinetics were studied based on the drying curve, drying rate, moisture effective diffusion coefficient, and drying activation energy, and the appropriate drying kinetics model of SM was established. The drying performance of different methods, such as hot air drying, infrared drying, and microwave drying of SM was evaluated, and the changes in the content of 10 salvianolic acids and 6 tanshinones during drying were analyzed by UPLC-TQ-MS. The Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS) was employed to evaluate the quality of SM dried with different methods. The results showed that the drying rate and moisture effective diffusion coefficient of SM increased with the rise in drying temperature, and the maximum drying rates of different methods were in the order of microwave drying > infrared drying > hot air drying, slice > whole root. The drying rate decreased with the rise in temperature and the extension of drying time. The activation energy of hot air drying was higher than that of infrared drying in SM. The most suitable model for simulating the drying process of SM was the Page model. The TOPSIS results suggested infrared drying at 50 ℃ was the optimal drying method for SM. During the drying process, the content of salvianolic acids increased in different degrees with the loss of moisture, among which salvianolic acid B showed the largest increase of 44 times compared with that in the fresh medicinal material. Tanshinones also existed in the fresh herb of SM, and the content of tanshinone Ⅱ_A increased by 3 times after drying. The results provided a basis for the establishment of suitable drying methods and the quality control of SM.
Salvia miltiorrhiza/chemistry*
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Desiccation/methods*
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Drugs, Chinese Herbal/chemistry*
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Rhizome/chemistry*
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Kinetics
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Quality Control
;
Abietanes
7.Phenomics of traditional Chinese medicine 2.0: the integration with digital medicine
Min Xu ; Xinyi Shao ; Donggeng Guo ; Xiaojing Yan ; Lei Wang ; Tao Yang ; Hao LIANG ; Qinghua PENG ; Lingyu Linda Ye ; Haibo Cheng ; Dayue Darrel Duan
Digital Chinese Medicine 2025;8(3):282-299
Abstract
Modern western medicine typically focuses on treating specific symptoms or diseases, and traditional Chinese medicine (TCM) emphasizes the interconnections of the body’s various systems under external environment and takes a holistic approach to preventing and treating diseases. Phenomics was initially introduced to the field of TCM in 2008 as a new discipline that studies the laws of integrated and dynamic changes of human clinical phenomes under the scope of the theories and practices of TCM based on phenomics. While TCM Phenomics 1.0 has initially established a clinical phenomic system centered on Zhenghou (a TCM definition of clinical phenome), bottlenecks remain in data standardization, mechanistic interpretation, and precision intervention. Here, we systematically elaborates on the theoretical foundations, technical pathways, and future challenges of integrating digital medicine with TCM phenomics under the framework of “TCM phenomics 2.0”, which is supported by digital medicine technologies such as artificial intelligence, wearable devices, medical digital twins, and multi-omics integration. This framework aims to construct a closed-loop system of “Zhenghou–Phenome–Mechanism–Intervention” and to enable the digitization, standardization, and precision of disease diagnosis and treatment. The integration of digital medicine and TCM phenomics not only promotes the modernization and scientific transformation of TCM theory and practice but also offers new paradigms for precision medicine. In practice, digital tools facilitate multi-source clinical data acquisition and standardization, while AI and big data algorithms help reveal the correlations between clinical Zhenghou phenomes and molecular mechanisms, thereby improving scientific rigor in diagnosis, efficacy evaluation, and personalized intervention. Nevertheless, challenges persist, including data quality and standardization issues, shortage of interdisciplinary talents, and insufficiency of ethical and legal regulations. Future development requires establishing national data-sharing platforms, strengthening international collaboration, fostering interdisciplinary professionals, and improving ethical and legal frameworks. Ultimately, this approach seeks to build a new disease identification and classification system centered on phenomes and to achieve the inheritance, innovation, and modernization of TCM diagnostic and therapeutic patterns.
8.Advances in synergistic therapies targeting metabolic mechanisms and the immune microenvironment in breast cancer
Yanchi ZHANG ; Junqi SHI ; Yijun ZHANG ; Jiawen DUAN ; Jinyu LIU ; Liyan ZHANG ; Wanping LIANG
Basic & Clinical Medicine 2025;45(12):1662-1667
This review systematically summarizes the unique metabolic mechanisms of breast cancer,their interac-tions with the tumor microenvironment(TME),and the latest advances in targeted therapies.The interplay between metabolic reprogramming and the TME underpins malignant progression and therapeutic resistance.Breast cancer cells reshape energy supply through the Warburg effect,aberrant fatty acid synthesis,and amino acid metabolism,while immune cells,fibroblasts,and the acidic milieu within the TME promote immune evasion and drug resistance via metabolic coupling.Although traditional strategies targeting key metabolic enzymes remain valuable,they are often insufficient to overcome metabolic adaptability.In recent years,combined metabolic and immunotherapeutic approaches have emerged as promising strategies:by reducing lactate accumulation,restoring T-cell function,and reprogramming tumor-associated macrophages and cancer-associated fibroblasts,these therapies can remodel the immunosuppressive microenvironment and enhance immunotherapy efficacy.The application of metabolomics and single-cell sequencing further elucidates breast cancer heterogeneity,providing a basis for individualized precision treatment.Future challenges include deciphering resistance mechanisms,developing highly selective metabolic in-hibitors,and designing integrated multi-omics-based therapeutic regimens.
9.Efficacy and safety of bronchial arterial chemoembolization combined with tislelizumab for advanced non-small cell lung cancer
Chao LIANG ; Hao LI ; Daqian HAN ; Jiacheng WANG ; Wenze XU ; Manzhou WANG ; Donglin KUANG ; Jianzhuang REN ; Xinwei HAN ; Xuhua DUAN
Journal of Interventional Radiology 2025;34(2):148-153
Objective To assess the efficacy and safety of bronchial arterial chemoembolization(BACE)combined with tislelizumab for advanced non-small cell lung cancer(NSCLC).Methods A total of 30 patients in First Affiliated Hospital of Zhengzhou University with stage Ⅲ-Ⅳ NSCLC from December 2021 to August 2022 were enrolled in this study.All the patients received BACE,which was followed by 200 mg tislelizumab once every 3 weeks until the disease progressed,or the patient developed intolerable adverse effects,or the investigator decided to terminate this drug treatment.The primary study endpoint was progression-free survival(PFS),and the secondary study endpoints included overall survival(OS),objective response rate(ORR),disease control rate(DCR),safety,and quality of life(QoL).Results The median follow-up time was 12 months(range of 1.5-12 months),the median PFS was 10.5 months(95%CI:7.8-13.2 months),and the median OS was not available.The 3-month,6-month,and 12-month ORRs were 63.3%(95%CI:43.9%-80.1%),56.7%(95%CI:37.4%-74.5%),and 30.4%(95%CI:13.2%-52.9%)respectively.The 3-month,6-month,and 12-month DCRs were 80%(95%CI:61.4%-92.3%),76.7%(95%CI:57.7%-90.1%),and 47.8%(95%CI:26.8%-69.4%)respectively.The expression ratio of PD-L1 ≥50%(HR=0.29,P=0.039),tumor having a single feeding artery(HR=0.35,P=0.028),and completion of>10 cycles of tislelizumab therapy(HR=0.42,P=0.064)were the protective factors for PFS.No ≥grade Ⅲ treatment-related adverse events(TRAEs)occurred.The common below grade Ⅱ TRAEs were nausea,fever,and cough.After one cycle of treatment,the patient's QoL,including overall quality of life,physical functioning,and emotional functioning,was significantly improved.Conclusion For the treatment of patients with advanced NSCLC,BACE plus tislelizumab has satisfactory clinical efficacy and safety.
10.Hepatic arterial embolization through abdominal aorta catheterization in rat liver cancer models:study of its safety and feasibility
Yigong REN ; Jingxi WU ; Ye LIANG ; Bing YUAN ; Feng DUAN
Journal of Interventional Radiology 2025;34(4):380-384
Objective To investigate the safety and feasibility of hepatic arterial embolization through abdominal aorta catheterization in rat liver cancer models.Methods Twenty Sprague-Dawley rat hepatocellular carcinoma models were successfully established by in situ implantation of McA-Rh7777 cells.The experimental rats were randomly divided into group A and group B,with 10 rats in each group.For the experimental rats of group A,catheterization of abdominal aorta was adopted to perform hepatic arterial angiography and embolization,while for the experimental rats of group B,the catheter passed through the gastroduodenal artery,then was retrogradely inserted into the proper hepatic artery to perform infusion of drugs,hepatic arterial angiography and embolization.The operation time,operation success rate,intraoperative and postoperative surgical complications in both groups were recorded.The postoperative recovery status of the experimental rats was recorded.The iodized oil deposition state was evaluated by abdominal CT scan at one day before operation and at 1,5 and 7 days after operation.Results In groups A and B,the operation time was(15.11±0.70)min and(34.39±1.60)min respectively(P=0.036),the operation success rate was 100%and 60%respectively(P=0.043),the differences between the two groups were statistically significant.No obvious surgical complications occurred in both groups.The postoperative CT plain scan showed that dense iodized oil deposition was observed in the experimental rats having successful operation.Conclusion Hepatic arterial embolization through abdominal aorta catheterization is a safe and feasible operation method for rat liver cancer models.

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