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2025
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2025
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2025
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2025
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2025
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2025
Dongshan Bay is a typical subtropical semi-enclosed bay characterized by abundant fish resources. We aimed to assess fish diversity and its seasonal variation in Dongshan Bay and to provide a scientific basis for the sustainable management and conservation of the fishery’s resources. In this study, we employed environmental DNA (eDNA) metabarcoding technology to analyze fish diversity in the bay during winter 2023 and summer 2024. A total of 76 fish species were detected across 12 sampling sites, with 43 species identified in summer and 45 species seen in winter. Overall, 13 species were detected in both the winter and summer. Non-significant differences were observed in Alpha diversity among the sampling sites. Fish species richness at the HXH2 site was the lowest among all the sampling sites for the reason that this sampling site was near to the effluent outlet of the Zhangzhou nuclear power plant and notably influenced by the thermal discharge. In general, fish diversity and abundance were higher in winter than in summer. RDA test analysis revealed that water temperature and dissolved oxygen were the primary environmental factors influencing fish distribution in summer. In winter, the influence of various factors is relatively balanced, with chlorophyll and Blue Green Algae Phycoerythrin (BGA PE) having a relatively greater impact than other factors. Our results offer valuable insights into enhancing fish diversity management in Dongshan Bay.- Book : 17(3)
- Pub. Date : 2025
- Page : pp.452-452
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2025
Tissue maintenance is underpinned by resident stem cells whose activity is modulated by microenvironmental cues. Using Drosophila as a simple model to identify regulators of stem cell behaviour and survival in vivo, we have identified novel connections between the conserved transmembrane proteoglycan Syndecan, nuclear properties and stem cell function. In the Drosophila midgut, Syndecan depletion in intestinal stem cells results in their loss from the tissue, impairing tissue renewal. At the cellular level, Syndecan depletion alters cell and nuclear shape, and causes nuclear lamina invaginations and DNA damage. In a second tissue, the developing Drosophila brain, live imaging revealed that Syndecan depletion in neural stem cells results in nuclear envelope remodelling defects which arise upon cell division. Our findings reveal a new role for Syndecan in the maintenance of nuclear properties in diverse stem cell types.- Book : 21(2)
- Pub. Date : 2025
- Page : pp.e1011586-e1011586
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2025
Background: The evidence base for the management of oligoprogression in metastatic melanoma (MM) is limited. To our knowledge, this study presents the first analysis of the local benefit (LB) of radiotherapy combined with hyperthermia during systemic treatment in this diagnosis. Methods: Patients with oligoprogressive MM who were treated with radiotherapy (RTH) combined with hyperthermia (HT) at a melanoma center between 2019 and 2023 were evaluated. Oligoprogression was defined as up to five progressive metastases. Inclusion criteria was the availability of dimensions assessment of the lesion subjected to RTH before and after treatment, patients without follow-up imaging after radiotherapy were excluded. The benefit of RTH + HT was evaluated in terms of local control (LC) rates and LB rates. LC was defined as the percentage of patients who met the Response Evaluation Criteria In Solid Tumors (RECIST 1.1) criteria for stable disease (SD), partial response (PR), and complete response (CR). LB was defined as the proportion of patients who met the PR and CR criteria. In addition, overall survival (OS) rates were estimated. The association between BRAF status, age, concomitant systemic treatment, radiation total dose, and biologically effective dose and LC was estimated. Data regarding adverse effects associated with RTH + HT were compiled. Survival analyses were performed using the Kaplan–Meier estimator and log-rank tests and were used to compare between groups. Results: In total, 101 patients were included in the study, the median follow-up was 15.3 months (14–18 months). There were 56.4% BRAF(−) and 43.6% BRAF(+) patients. Most patients (71.3%) were irradiated during immunotherapy, 10.9% received concomitant BRAF and MEK inhibitors, and 3.9% had chemotherapy. LC and LB medians were not reached at the time of analysis. The 1- and 2-year LC rates were 93.5% (95% confidence interval (CI): 88.1%–99.3%) and 88.3% (95% CI: 79.9%–97.6%), respectively. The 1- and 2-year LB rates were 87.5% (95% CI: 80.5%–95.2%) and 78.1% (95% CI: 67.9%–89.9%), respectively. The mean reduction in irradiated tumor size across the entire cohort was 72%. The mOS from radiotherapy was not achieved at the time of our analysis, accordingly 1- and 2-year OS rates were 100% and 95% (95% CI: 90.4%–99.9%). None of the evaluated factors influenced LC among patients. Conclusion: Hyperthermia with radiotherapy is an effective treatment for patients with oligoprogressive melanoma. This approach has resulted in excellent LC. - Book : 17()
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