1.Review on separation and determination of 63Ni in solid wastes and liquid effluents from nuclear power plants
Mengyu FU ; Xinjie GUO ; Xuqin ZHANG ; Junwu TANG ; Yongshi XU ; Hongshen DING
Chinese Journal of Radiological Health 2025;34(1):142-148
63Ni is predominantly generated through neutron activation in nuclear reactors and is classified as a pure beta-emitting radionuclide with a half-life of 101.1 a. During decay, 63Ni emits a beta ray with an energy of 65.87 keV. 63Ni can be used in the manufacture of beta radiation sources, which are utilized as reference and working sources for beta activity measurement and beta energy response calibration. Additionally, it is used in electron capture detectors for chromatography, ionization sources in electron tubes, and electron capture probes in gas chromatography. These instruments have extensive applications in food safety, public health and epidemic prevention, soil pollution monitoring, and security. 63Ni is an artificial radionuclide not commonly found in the natural environment under normal conditions. However, the 63Ni generated during routine operations of nuclear power plants, as well as residual materials and wastes contaminated with 63Ni during plant decommissioning, may be released into the environment through liquid effluents or solid wastes. This can pose potential radiation risks to both the public and the environment. Hence, it is necessary to monitor the activity concentration of 63Ni. Currently, reports on this subject are limited in China, and there is a lack of established standards for the determination of 63Ni in nuclear power plants. This article reviews the global literature on the pretreatment and purification measurement processes of 63Ni. The merits and demerits are summarized for pretreatment methods such as acid leaching, mixed acid digestion, ashing acid leaching/dissolution, and alkali fusion, and for separation and purification methods like solvent extraction, precipitation, and extraction chromatography. The article also highlights the advantages of measurement using liquid scintillation counters. This review provides a reference for the establishment of the determination method of 63Ni in liquid effluents and solid wastes from nuclear power plants.
2.Metabolite identification and metabolic pathway analysis of pirtobrutinib in rats
Meijuan ZHANG ; Jie LI ; Hang YIN ; Mengyu HOU ; Jiangshuo LI ; Jingxuan WU ; Ruihua DONG
China Pharmacy 2025;36(9):1076-1081
OBJECTIVE To analyze and identify the metabolites of pirtobrutinib (PTN) in rats, and clarify the possible metabolic pathways of PTN in rats. METHODS Six rats were intragastrically administered with 10 mg/kg PTN suspension. Blood samples were collected from the rats 30 minutes before administration and at 0.25, 0.5, 1, 2, 4, 6, 8, 12, 24 hours after administration. Urine and feces samples were collected 12 hours before administration and 24 hours after administration. UHPLC- Orbitrap Exploris 240 system combined with Compound Discoverer 3.0 and Xcalibur 2.0 software were adopted for structural identification and metabolic pathway analysis of PTN metabolites in rat plasma, urine, and feces. RESULTS A total of 29 PTN metabolites were identified, including 17, 19 and 22 metabolites in plasma, urine and feces, respectively. The metabolic pathways of PTN mainly included oxidation, sulfation, glucuronidation, etc., and its metabolites were mostly combination products of two or more different metabolic forms. In detail, a total of 26 metabolites were associated with phase Ⅰ metabolic reactions (14 oxidation metabolites, 9 reduction/dehydrogenation metabolites, 8 demethylation metabolites, and 5 hydrolysis metabolites). Meanwhile, a total of 20 products were involved in phase Ⅱ metabolites (14 sulfation metabolites and 8 glucuronic acid binding metabolites). CONCLUSIONS PTN exhibits a diverse range of metabolites in rat fecal samples, with the primary metabolic pathways being oxidation, sulfation, glucuronidation, and others.
3.Analysis of changes in visual function before and after small incision lenticule extraction in patients with different degrees of myopia
Meiluo ZHANG ; Chunyu TIAN ; Liexi JIA ; Qinghua YANG ; Hongtao ZHANG ; Hui CUI ; Mengyu PENG ; Ruihua WEI
International Eye Science 2025;25(6):980-985
AIM: To analyze the changes in binocular visual function before and after small incision lenticule extraction(SMILE)in patients with different degrees of myopia.METHODS:A prospective non-randomized controlled study was conducted. A total of 94 patients(188 eyes)who visited the refractive outpatient department of the ophthalmology department of the General Hospital of the PLA from June 2022 to June 2023 and voluntarily chose SMILE were consecutively included. They were grouped according to the degree of myopia, including 24 cases(48 eyes)in the low myopia group(-3.00 D
4.Overlapping Reflux Symptoms in Functional Dyspepsia Are Mostly Unrelated to Gastroesophageal Reflux
Songfeng CHEN ; Xingyu JIA ; Qianjun ZHUANG ; Xun HOU ; Kewin T H SIAH ; Mengyu ZHANG ; Fangfei CHEN ; Niandi TAN ; Junnan HU ; Yinglian XIAO
Journal of Neurogastroenterology and Motility 2025;31(2):218-226
Background/Aims:
Reflux symptoms frequently present in patients diagnosed with functional dyspepsia (FD). This investigation sought to elucidate the contribution of gastroesophageal reflux in the overlap relationship.
Methods:
Consecutive patients presenting with reflux symptoms and/or FD symptoms were prospectively included. Comprehensive assessments, including symptoms evaluation, endoscopy, esophageal functional examinations (high-resolution manometry and reflux monitoring), and proton pump inhibitor (PPI) treatment efficacy evaluation, were conducted in these patients.
Results:
The study enrolled 315 patients, 43.2% of which had concurrent FD symptoms and overlapping reflux symptoms. Notably, a mere 28.7% of patients in the overlap symptoms group had objective gastroesophageal reflux disease evidences (the grade of esophagitis≥ B or the acid exposure time ≥ 4.2%). Functional heartburn was demonstrated to be the main cause of overlapping reflux symptoms(55.1%). Reflux parameters analysis revealed that the reflux burden in the overlap symptoms group paralleled that of the FD symptoms group, with both registering lower levels than the reflux symptoms group (P < 0.05). Furthermore, PPI response rates were notably diminished in the overlap symptoms group (P < 0.001), even for those with objective gastroesophageal reflux disease evidences.
Conclusions
The study illuminated that overlapping reflux symptoms in FD was common. Strikingly, these symptoms primarily diverged from reflux etiology and exhibited suboptimal responses to PPI intervention. These findings challenge prevailing paradigms and accentuate the imperative for nuanced therapeutic approaches tailored to the distinctive characteristics of overlapping reflux symptoms in the context of FD.
5.Overlapping Reflux Symptoms in Functional Dyspepsia Are Mostly Unrelated to Gastroesophageal Reflux
Songfeng CHEN ; Xingyu JIA ; Qianjun ZHUANG ; Xun HOU ; Kewin T H SIAH ; Mengyu ZHANG ; Fangfei CHEN ; Niandi TAN ; Junnan HU ; Yinglian XIAO
Journal of Neurogastroenterology and Motility 2025;31(2):218-226
Background/Aims:
Reflux symptoms frequently present in patients diagnosed with functional dyspepsia (FD). This investigation sought to elucidate the contribution of gastroesophageal reflux in the overlap relationship.
Methods:
Consecutive patients presenting with reflux symptoms and/or FD symptoms were prospectively included. Comprehensive assessments, including symptoms evaluation, endoscopy, esophageal functional examinations (high-resolution manometry and reflux monitoring), and proton pump inhibitor (PPI) treatment efficacy evaluation, were conducted in these patients.
Results:
The study enrolled 315 patients, 43.2% of which had concurrent FD symptoms and overlapping reflux symptoms. Notably, a mere 28.7% of patients in the overlap symptoms group had objective gastroesophageal reflux disease evidences (the grade of esophagitis≥ B or the acid exposure time ≥ 4.2%). Functional heartburn was demonstrated to be the main cause of overlapping reflux symptoms(55.1%). Reflux parameters analysis revealed that the reflux burden in the overlap symptoms group paralleled that of the FD symptoms group, with both registering lower levels than the reflux symptoms group (P < 0.05). Furthermore, PPI response rates were notably diminished in the overlap symptoms group (P < 0.001), even for those with objective gastroesophageal reflux disease evidences.
Conclusions
The study illuminated that overlapping reflux symptoms in FD was common. Strikingly, these symptoms primarily diverged from reflux etiology and exhibited suboptimal responses to PPI intervention. These findings challenge prevailing paradigms and accentuate the imperative for nuanced therapeutic approaches tailored to the distinctive characteristics of overlapping reflux symptoms in the context of FD.
6."Integrated Internal and External Treatment with Harmonization of Body and Mind" for Tinnitus Caused by Constraint Syndrome
Wenli WU ; Ying ZHANG ; Daxin LIU ; Zhanfeng YAN ; Mengyu YIN
Journal of Traditional Chinese Medicine 2025;66(12):1281-1285
Based on the theories of "pathogenesis caused by constraint emotions" and "visceral orifices", it is believed that the pathogenesis of tinnitus caused by constraint syndrome follows the evolution pattern of "qi constraint (liver qi constraint) → fire disturbance (liver constraint transforming into fire) → deficiency impairment (liver constraint with spleen deficiency) → blood stasis (liver constraint leading to blood stasis)". The treatment is guided by the principle of integrated internal and external therapy with harmonization of both body and mind. Internally, the treatment focuses on rectifying zang-fu imbalances, primarily using the Xiaoyao Powder (逍遥散), with modifications based on syndrome differentiation. External therapies aim to unblock the meridians and orifices, commonly using auricular acupressure and Chinese herbal hot compresses. Additionally, traditional Chinese five-tone music therapy is applied to regulate emotional and mental disturbances. By integrating these three approaches, a comprehensive treatment strategy is formed that harmonizes both body and mind for managing tinnitus associated with constraint syndrome.
7.Overlapping Reflux Symptoms in Functional Dyspepsia Are Mostly Unrelated to Gastroesophageal Reflux
Songfeng CHEN ; Xingyu JIA ; Qianjun ZHUANG ; Xun HOU ; Kewin T H SIAH ; Mengyu ZHANG ; Fangfei CHEN ; Niandi TAN ; Junnan HU ; Yinglian XIAO
Journal of Neurogastroenterology and Motility 2025;31(2):218-226
Background/Aims:
Reflux symptoms frequently present in patients diagnosed with functional dyspepsia (FD). This investigation sought to elucidate the contribution of gastroesophageal reflux in the overlap relationship.
Methods:
Consecutive patients presenting with reflux symptoms and/or FD symptoms were prospectively included. Comprehensive assessments, including symptoms evaluation, endoscopy, esophageal functional examinations (high-resolution manometry and reflux monitoring), and proton pump inhibitor (PPI) treatment efficacy evaluation, were conducted in these patients.
Results:
The study enrolled 315 patients, 43.2% of which had concurrent FD symptoms and overlapping reflux symptoms. Notably, a mere 28.7% of patients in the overlap symptoms group had objective gastroesophageal reflux disease evidences (the grade of esophagitis≥ B or the acid exposure time ≥ 4.2%). Functional heartburn was demonstrated to be the main cause of overlapping reflux symptoms(55.1%). Reflux parameters analysis revealed that the reflux burden in the overlap symptoms group paralleled that of the FD symptoms group, with both registering lower levels than the reflux symptoms group (P < 0.05). Furthermore, PPI response rates were notably diminished in the overlap symptoms group (P < 0.001), even for those with objective gastroesophageal reflux disease evidences.
Conclusions
The study illuminated that overlapping reflux symptoms in FD was common. Strikingly, these symptoms primarily diverged from reflux etiology and exhibited suboptimal responses to PPI intervention. These findings challenge prevailing paradigms and accentuate the imperative for nuanced therapeutic approaches tailored to the distinctive characteristics of overlapping reflux symptoms in the context of FD.
8.Zingiberis Rhizoma Alleviates Inflammatory Bowel Disease Through Regulating TLR4/MAPK Signaling Pathway in Ly6Chi Monocytes/Macrophages
Yalan LI ; Chonghao ZHANG ; Huachen LIU ; Jialong SU ; Na LI ; Mengyu ZHOU ; Guiying PENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):66-75
ObjectiveTo investigate the potential mechanisms of Zingiberis Rhizoma in treating inflammatory bowel disease (IBD) by integrating network pharmacology with in vitro and in vivo experiments. MethodsTraditional Chinese Medicine Systems Pharmacology Database And Analysis Platform (TCMSP), Traditional Chinese Medicine Integrated Database (TCMID) Database were used to obtain the active component targets of Zingiberis Rhizoma. GeneCards was used to obtain the IBD targets. DAVID was used to perform Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses on core targets. Cytoscape 3.10.2 was used to establish the "active component-disease target-signaling pathway" interaction network. Mice were randomly assigned to control, model, and Zingiberis Rhizoma (400 mg·kg-1) groups. An IBD model was induced via dextran sulfate sodium (DSS). The colonic tissue was collected post-treatment to assess histology, expression of Ly6C+ monocytes/macrophages, and mRNA levels of Toll-like receptor 4 (TLR4), and inflammatory cytokines. The effect of Zingiberis Rhizoma aqueous extract on RAW264.7 cell viability was evaluated. Furthermore, the effects of the extract at 100, 10, and 1 mg·L-1 on LPS-induced differentiation of RAW264.7 cells into Ly6Chi monocytes/macrophages, mRNA levels of TLR4 and inflammatory cytokines, and protein levels of factors in the TLR4/mitogen-activated protein kinase (MAPK) signaling pathway. ResultsA total of 241 targets were identified for Zingiberis Rhizoma and 6 787 for IBD, with 122 shared targets among Zingiberis Rhizoma, ulcerative colitis (UC), and Crohn's disease (CD). The enrichment analyses yielded 297 GO terms and 88 KEGG pathways. Associations were noted between Zingiberis Rhizoma's active component targets and IBD targets. In vivo experiments: Compared with the control group, the model group showed decreased body weight and disease activity index (DAI)(P<0.01), shortened colon length, damaged mucosal epithelium with inflammatory cell infiltration, raised pathological scores (P<0.05), increased Ly6Chi and Ly6Clo monocytes/macrophages (P<0.05), and up-regulated mRNA levels of TLR4, TNF-α, IL-1β, and IL-6 (P<0.05) and protein levels of TLR4, phosphorylated extracellular signal-regulated protein kinase 1/2 (p-ERK1/2), and phosphorylated p38 MAPK (p-p38 MAPK) (P<0.05). Zingiberis Rhizoma intervention reversed these changes and reduced Ly6Chi monocytes/macrophages (P<0.01). In vitro experiments: compared with the control, LPS increased the proportion and number of Ly6Chi monocytes/macrophages and mRNA levels of TLR4, TNF-α, IL-1β, and IL-6 (P<0.01) and enhanced the expression of TLR4, p-ERK1/2, and p-p38 MAPK (P<0.05). Zingiberis Rhizoma reduced Ly6Chi monocytes/macrophages (P<0.05), down-regulated the mRNA levels of inflammatory cytokines (P<0.05), and suppressed the TLR4/MAPK pathway (P<0.05). ConclusionZingiberis Rhizoma alleviates IBD by suppressing the TLR4/ERK/p38 MAPK signaling pathway and reducing inflammatory cytokine levels in Ly6Chi monocytes/macrophages.
9.Evidence-based Optimization of Acupuncture Timing Strategies for Ischemic Stroke
Gezhi ZHANG ; An LI ; Weixuan BAI ; Xue CHEN ; Fangqi LIU ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):144-152
ObjectiveTo investigate the impacts of three types of acupuncture timing factors, including intervention initiation time, needle retention duration, and treatment intervals, on the treatment efficacy of ischemic stroke (IS) and provide evidence-based support for optimizing acupuncture timing strategies. MethodsA systematic search was conducted in both Chinese and English databases, including CNKI, Wanfang Data, VIP, CBM, PubMed, Web of Science, Cochrane Library, and Embase. The randomized controlled trials involving multiple acupuncture intervention time groups were included to reduce inter-study heterogeneity. A network meta-analysis model was constructed to compare the effects of different intervention initiation time, needle retention duration, and treatment intervals on primary IS outcomes, including total clinical response rate, neurological and limb function scores, quality of life score, and hemorheological parameters. Adverse events were also assessed. ResultsA total of 32 studies were included. The results showed that early acupuncture intervention (1-3 days and 4-7 days after onset) outperformed late intervention (>14 days) in terms of response rate, neurological function improvement, and quality of life (P<0.05, P<0.01). Extending needle retention time to 40-60 min was associated with improved response rates and hemorheological parameters (P<0.01). No significant differences were observed among different treatment intervals. The evidence of key outcomes showed high overall certainty, with low heterogeneity and inconsistency. Sensitivity analyses and publication bias assessments indicated the stability of the main results and a low risk of publication bias. No significant adverse reaction was reported. ConclusionDifferent timing factors significantly influence the efficacy of acupuncture treatment for IS. Early intervention and appropriately extended needle retention time result in better clinical outcomes, while treatment interval has no significant effect on efficacy. The inclusion of studies with multiple acupuncture timing groups helps control methodological heterogeneity and enhances the robustness of the analysis, providing evidence-based guidance for optimizing acupuncture timing strategies in IS management.
10.Preliminary Construction of Comprehensive Evaluation System for TCM Clinical Practice Guidelines Based on Bibliometric Analysis and Core Element Extraction
Xue CHEN ; Gezhi ZHANG ; Danping ZHENG ; Fangqi LIU ; An LI ; Junjie JIANG ; Nannan SHI ; Wei YANG ; Xinghua XIANG ; Mengyu LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):209-219
ObjectiveTo construct a comprehensive evaluation indicator system for clinical practice guidelines of traditional Chinese medicine (TCM) that is scientific, systematic, and reflects the characteristics of TCM. MethodsA systematic search was conducted in Chinese and English databases, including CNKI, Wanfang, VIP, SinoMed, PubMed, Embase, and Cochrane Library, to include literature on domestic and international guideline evaluation tools and TCM-related research. Document analysis and CiteSpace were utilized for keyword co-occurrence and clustering analysis. ResultsA total of 65 relevant studies were included, from which seven core thematic domains were identified. Based on the research objectives, a two-step construction strategy was adopted: first, an external evaluation framework was established by referencing international tools to cover methodological rigor and procedural standardization; second, an internal evaluation framework was developed to reflect the distinctive features of TCM clinical practice, including syndrome differentiation and efficacy feedback. Through expert consensus, the indicator system was refined, resulting in a dual-layered structure comprising 8 primary indicators, 22 secondary indicators, and 62 evaluation criteria. ConclusionThe comprehensive evaluation system for TCM clinical practice guidelines, based on bibliometric analysis and core element extraction, integrates both theoretical integrity and practical applicability. This study provides a preliminary research foundation for further optimization, validation, and development of a refined comprehensive evaluation system.

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