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In this paper, we consider the integrable extended complex modified Korteweg–de Vries equation. Based on Darboux transformation, we obtain soliton molecules, positon solutions, rational positon solutions and rogue waves for integrable extended complex modified Korteweg–de Vries equation. Further, under the standard decomposition, we divide the rogue waves into three patterns: fundamental pattern, triangular pattern and ring pattern. On the basis of fundamental pattern, we define the length and width of rogue waves and discuss the effect of different parameters on rogue waves.

Background Neonicotinoid insecticides are applied worldwide for the control of agricultural insect pests. The evolution of neonicotinoid resistance has led to the failure of pest control in the field. The enhanced detoxifying enzyme activity and target mutations play important roles in the resistance of insects to neonicotinoid resistance. Emerging evidence indicates a central role of the gut symbiont in insect pest resistance to pesticides. Existing reports suggest that symbiotic microorganisms could mediate pesticide resistance by degrading pesticides in insect pests. Results The 16S rDNA sequencing results showed that the richness and diversity of the gut community between the imidacloprid-resistant (IMI-R) and imidacloprid-susceptible (IMI-S) strains of the cotton aphid Aphis gossypii showed no significant difference, while the abundance of the gut symbiont Sphingomonas was significantly higher in the IMI-R strain. Antibiotic treatment deprived Sphingomonas of the gut, followed by an increase in susceptibility to imidacloprid in the IMI-R strain. The susceptibility of the IMI-S strain to imidacloprid was significantly decreased as expected after supplementation with Sphingomonas . In addition, the imidacloprid susceptibility in nine field populations, which were all infected with Sphingomonas , increased to different degrees after treatment with antibiotics. Then, we demonstrated that Sphingomonas isolated from the gut of the IMI-R strain could subsist only with imidacloprid as a carbon source. The metabolic efficiency of imidacloprid by Sphingomonas reached 56% by HPLC detection. This further proved that Sphingomonas could mediate A. gossypii resistance to imidacloprid by hydroxylation and nitroreduction. Conclusions Our findings suggest that the gut symbiont Sphingomonas , with detoxification properties, could offer an opportunity for insect pests to metabolize imidacloprid. These findings enriched our knowledge of mechanisms of insecticide resistance and provided new symbiont-based strategies for control of insecticide-resistant insect pests with high Sphingomonas abundance.

Background Nanodelivery represents a promising strategy to enhance pesticide efficacy while reducing associated environmental risks. Mesoporous silica nanospheres (MSNs) can serve as effective nanocarriers but improvements are essential in terms of targeting and efficiency. A promising approach involves combining nanocarriers-mediated pesticide delivery system with bioactive compounds, in which the compounds act as synergist that can disrupt insect defence mechanisms. Pickering emulsions (PEs) offer significant advantages in improving the bioavailability of active ingredients from compounds, which would enhance the synergistic effect to insecticides. Beyond encapsulating bioactive compounds, PEs serve as efficient pesticide delivery vehicles, enhancing leaf wettability and foliar deposition, making them effective adjuvants. This study aimed to construct a hybrid platform that integrates pesticides-loaded MSNs with synergistic PE as adjuvants, developing porous nanocarrier-based nanoemulsions to fight against insecticide-resistant pests. Results The nanosystem (IMI@MSNs@lim@chs) that integrates imidacloprid (IMI)-loaded MSNs with limonene–chitosan (lim@chs) Pickering emulsions as adjuvants was developed and successfully control the resistance agroforestry pests, Myzus persicae (Sulzer). The IMI@MSNs complex showed increased toxicity than IMI, which account for the pesticide absorption and delivery capacity of MSNs. While incorporation IMI@MSNs with lim@chs, the IMI@MSNs@lim@chs nanosystem achieved the highest efficacy, indicating the remarkable synergistic effect of the lim@chs adjuvant. Mechanistic analyses have demonstrated that the lim@chs enhanced IMI activity was attributed to remarkable antibacterial effects, hydrophobicity, and lipophilicity, which suppress P450-mediated detoxification by inducing gut microbiota deficiency and facilitating epidermal penetration via cuticle disruption. In parallel, the porous MSNs promote nanosystem adhesion, preventing run-off and improving the IMI recovery rate after leaching. The lipophilic lim@chs enhances leaf wettability via supramolecular interactions, benefiting droplet rebound and promoting foliar deposition. Importantly, IMI@MSNs@lim@chs exhibits reduced toxicity and minimal impact on the predation capacity of Coccinella septempunctat , demonstrating the lower environmental risks. Conclusions The findings of this study demonstrate an effective synergistic coupling of porous nanocarriers with Pickering emulsions as adjuvants to enhance pesticide delivery and selectivity, offering a promising platform for sustainable pest management. Graphical abstract

This study develops exact analytical solutions for transient elliptical groundwater flow toward an extended well in an anisotropic fractured confined aquifer and then discusses how the resulting hydraulic response can support groundwater-head interpretation in shale-gas development areas. The environmental connection is made at the aquifer-protection scale: the model is not a shale-gas reservoir production model, and it does not solve contaminant transport directly. Instead, it provides a hydraulic interpretation framework for estimating anisotropy, equivalent fracture length, wellbore-storage effects, and the preferential direction of head propagation around possible leakage points, old wells, fractures, or monitoring wells. Based on Mathieu-function theory and the separation-of-variables method, constant-rate and constant-head solutions are derived in Laplace space and inverted to the time domain with the Stehfest algorithm. The analytical results are validated against COMSOL5.2 finite-element simulations, and the effects of anisotropy coefficient and wellbore storage are analyzed through drawdown and flow-rate type curves. A synthetic but field-style water-head example is included to demonstrate how monitoring records can be converted to drawdown, fitted to the elliptical-flow solution, and used to delineate a preliminary hydraulic response zone. The results show that anisotropy mainly controls early-to-middle time response, whereas wellbore storage may obscure early head changes and delay the recognition of fracture connectivity. Therefore, the solution is best regarded as a rapid hydraulic-screening and monitoring-design tool that can precede, but not replace, site-specific contaminant-transport modeling in shale-gas groundwater-protection studies. The relevant technical issues are possible head disturbances and preferential groundwater pathways associated with surface spills, flowback-water handling, old wells, faults, and fracture-connected water-bearing zones. Because verified local field-monitoring records were not available for us, the application example is explicitly described as a synthetic field-style demonstration; it is used to show the workflow and its limitations, not to claim site-specific prediction of contaminant concentration.

Background Although immune checkpoint inhibitors (ICIs) have brought survival benefits to non-small cell lung cancer (NSCLC), disease progression still occurs, and there is no consensus on the treatment options for these patients. We designed a network meta-analysis (NMA) to evaluate systemic treatment options for NSCLC after failure of ICIs. Methods PubMed, Embase, Web of Science and Cochrane Library databases were searched, then literature screening was followed by NMA. We included all Phase II and III randomized controlled trials (RCTs). Progression-free survival (PFS) and overall survival (OS) used hazard ratio (HR) for evaluation. Objective response rate (ORR) and adverse events (AEs) used odds ratio (OR) and relative risk (RR) effect sizes, respectively. R software was applied to compare the Bayesian NMA results. Results We finally included 6 studies. 1322 patients received ICI plus Chemotherapy (ICI + Chemo), ICI plus Anti-angiogenic monoclonal antibody (ICI + Antiangio-Ab), ICI plus Tyrosine kinase inhibitor (ICI + TKI), Tyrosine kinase inhibitor plus Chemotherapy (TKI + Chemo), Standard of Care (SOC), Chemotherapy (Chemo). TKI + Chemo is associated with longer PFS, higher ORR (surface under cumulative ranking curve [SUCRA], 99.7%, 88.2%), ICI + TKI achieved the longest OS (SUCRA, 82.7%). ICI + Antiangio-Ab was granted the highest safety rating for adverse events (AEs) of any grade, AEs greater than or equal to grade 3 and AEs of any grade leading to discontinuation of treatment (SUCRA, 95%, 82%, 93%). Conclusions For NSCLC after failure of ICIs, TKI + Chemo was associated with longer PFS and higher ORR, while ICI + TKI was associated with the longest OS. In terms of safety, ICI + Antiangio-Ab was the highest.

Adapting their reproductive physiology is a tactic that insects use in responding to conditions of food unavailability. The present study examined the potential effects of starvation periods on the ovarian development and reproduction of alate adult morphs of Sitobion avenae (Fabricius). Morphs both continuously fed and starved aphids contained two telotrophic ovaries, each comprising five ovarioles. As time increase after emergence, the number of offspring produced by the fed aphids increased gradually, whereas the number of embryos in their ovaries decreased gradually. Both the number of mature embryos and the volume of embryos rapidly increased at 24 h after emergence, and then remained at an approximately constant level between 24 and 144 h. Compared to the fed aphids, starved aphids only produced a small number of nymphs, and there was no significant change in the total number of embryos between 24 and 144 h, whereas both the number of mature embryos and volume of embryos increased significantly. Irrespective of starvation period, highly significant relationships between life span and fecundity were found. Adult aphids starved for longer periods presented lower longevity and fecundity, but dead females contained more mature embryos than those starved for shorter periods. These results suggested that, under starvation stress, S. avenae tends to invest in the development of larger embryos at the expense of reducing lifespan and future fecundity. This adaptive reproductive strategy under starvation stress could be one of the factors contributing to the successful establishment of new colonies of alate migratory aphids.

Background SET domain bifurcated 1 (SETDB1) has been widely considered as an oncogene playing a critical role in many human cancers, including breast cancer. Nevertheless, the molecular mechanism by which SETDB1 regulates breast cancer tumorigenesis is still unknown. Methods qRT-PCR assay or western blot analysis was performed to assess the expression level of SETDB1 mRNA or protein, respectively. siSETDB1, pCMV6-XL5-SETDB1, miR-381-3p mimic, or miR-381-3p inhibitor was transfected into cells to regulate the expression of SETDB1 or miR-381-3p. MiRNA directly interacted with SETDB1 was verified by luciferase reporter assay and RNA immunoprecipitation. CCK-8 assay, colony formation assay, flow cytometric analysis, and transwell assay were used to detect the abilities of cell proliferation, cell cycle progression and migration, respectively. Animal model of xenograft tumor was used to observe the regulatory effect of SETDB1 on tumor growth in vivo. Results We verified that SETDB1 mRNA level was upregulated in breast cancer tissues and cell lines, and SETDB1 depletion led to a suppression of cell proliferation, cell cycle progression and migration in vitro, as well as tumor growth in vivo. SETDB1 was verified to be a target of miR-381-3p. Moreover, miR-381-3p overexpression suppressed cell proliferation, cell cycle progression and migration, whereas SETDB1 abated miR-381-3p-mediated regulatory function on breast cancer cells. Conclusions This study revealed that SETDB1 knockdown might suppress breast cancer progression at least partly by miR-381-3p-related regulation, providing a novel prospect in breast cancer therapy.

Background Transforming growth factor-β (TGF-β) plays well-established roles in cancer cell invasion and epithelial–mesenchymal transition (EMT); however, its role in thyroid carcinoma (TC) remains unclear. This study aimed to evaluate the effects of TGF-β on EMT in TC and determine its underlying mechanisms. Methods Treatment of TC cell lines with TGF-β the morphology of thyroid cancer cells changed, Immunofluorescence staining revealed that the localization of E-cadherin shifted from the cell membrane to the cytoplasm, and the fluorescence intensity decreases. Wound-healing assay in BCPAP and TPC-1 revealed that migration ability was significantly higher in the TGF-β (5 ng/mL) treatment group than in the control group ( P  < 0.01). Results Transwell assays showed that the invasive abilities of TGF-β-treated BCPAP, TPC-1, and K1 cells were 7-, 10-, and 6-fold higher than those of the control group, respectively ( P  < 0.05). After TGF-β treatment, mRNA levels of SNAI1 significantly increased in TPC-1 and BCPAP cell lines. Treatment of TC cell lines with TGF-β downregulated the epithelial marker E-cadherin and upregulated the mesenchymal markers N-cadherin and vimentin, at the mRNA level. Western blotting indicated similar results at the protein level, TSH could enhance this process. Conclusions TGF-β promotes EMT-like phenotypic changes in thyroid cancer cells, accompanied by upregulation of SNAI1 and EMT-related markers, which is enhanced by TSH. Overall, this study provides a basis for the development of therapeutic strategies for TC targeting the EMT.

Preoperative risk stratification for cervical lymph node metastasis (LNM) is challenging in papillary thyroid carcinoma (PTC), metabolic disturbances may contribute to tumor progression and metastasis. This large retrospective cohort study investigated clinical and metabolic profiles to identify independent metabolic correlates associated with cervical LNM, which may complement preoperative risk assessment. A retrospective cohort analysis of 1,003 PTC patients was performed. Preoperative variables (demographics, clinicopathological features, serum biochemical markers) were profiled; univariate and multivariable logistic regression analyses were utilized to identify independent metabolic factors associated with central (CLNM) and lateral LNM (LLNM). Among 1,003 patients, 35.19% and 3.79% presented with CLNM and LLNM, respectively. The LLNM subgroup was small (n = 38), which limited statistical power and generalizability of the corresponding findings. Multivariable analysis identified HDL-C (OR = 0.63, P = 0.040) as a factor independently associated with CLNM, and 25(OH)D (OR = 0.97, P = 0.012) with LLNM. Patients with 25(OH)D deficiency (< 50 nmol/L) had a higher LLNM incidence than those with sufficient levels (5.07% vs. 1.95%, P < 0.05). Tumor size remained a robust risk factor for both compartments, whereas BRAF V600E mutation showed no significant independent association with metastasis in this dataset (P > 0.05). Our findings suggest that preoperative serum 25(OH)D and HDL-C are associated with site-specific LNM in PTC. These markers may complement preoperative risk stratification, although current evidence remains inconsistent. Given the retrospective, single-center design and small subgroup sizes, our results are preliminary and hypothesis-generating. Further prospective studies are needed to validate their clinical role.

Proinflammatory factor tumor necrosis factor-α (TNF-α) is an important inflammatory mediators in tumor microenvironment and autoimmune diseases, it is highly expressed in many solid tumors and tumor microenvironment, showing a tumor promoting role. However, the molecular mechanisms underlying TNF-α-increased invasion of thyroid cancer are still not fully understood. In order to explore whether TNF-α plays a key role in the process of epithelial mesenchymal transition (EMT) in papillary thyroid carcinoma (PTC), we used TNF-α to induce EMT in different PTC cell lines, and observed the expression of different transcription factors and signal pathways. After TNF-α treatment, in TPC-1, Snail and ZEB2 mRNA levels did not change significantly, while Slug, Twist1, ZEB1 mRNA expression increased. In BCPAP, Snail mRNA level increased significantly (P < 0.01), while Twist1 showed a certain degree of increase only at the concentration of TNF - α 20 ng / ml (P < 0.01), but mRNA of Slug, ZEB1, ZEB2 showed no significant change. The expression of proteins was consistent with genes. The activation of different pathways did not show gene differences, and pathway inhibitors could reduce the invasion and metastasis of cells, but only NF-κB inhibitors could reverse the expression of transcription factors. Expressions of Snail and Slug in different PTC cell lines were dependent on pro-oncogene mutation, but the pathway had no differences. The establishment of this study model can enrich the research on the pathogenesis and metastasis of thyroid cancer, effectively link the inflammatory microenvironment with the occurrence and development of thyroid cancer.