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1.
Neural Regen Res ; 20(7): 1900-1918, 2025 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38993125

RESUMEN

The cGAS-STING pathway plays an important role in ischemia-reperfusion injury in the heart, liver, brain, and kidney, but its role and mechanisms in cerebral ischemia-reperfusion injury have not been systematically reviewed. Here, we outline the components of the cGAS-STING pathway and then analyze its role in autophagy, ferroptosis, cellular pyroptosis, disequilibrium of calcium homeostasis, inflammatory responses, disruption of the blood-brain barrier, microglia transformation, and complement system activation following cerebral ischemia-reperfusion injury. We further analyze the value of cGAS-STING pathway inhibitors in the treatment of cerebral ischemia-reperfusion injury and conclude that the pathway can regulate cerebral ischemia-reperfusion injury through multiple mechanisms. Inhibition of the cGAS-STING pathway may be helpful in the treatment of cerebral ischemia-reperfusion injury.

2.
Heliyon ; 10(17): e37110, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39296110

RESUMEN

Background: Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by multi-organ involvement and the presence of autoantibodies, pathogenic factors that can serve as diagnostic biomarkers. The current research has been focusing on exploring specific autoantigens with clinical relevance for SLE subtypes. In line with this objective, this study investigated potential antigenic targets associated with specific phenotypes in SLE by leveraging an omics-based approach combined with immunoassay techniques. Methods: A transcriptomic analysis was conducted in a cohort of 70 SLE patients to identify genes significantly correlated to the relevant phenotype. Epitope mapping and sequence analysis techniques were used to predict autoantigens, and the corresponding antibodies were subsequently quantified by enzyme-linked immunosorbent assay (ELISA) and validated by Western blot. Results: Transcriptomic data analysis revealed a group of hub genes exhibiting a significant correlation with the neuropsychiatric phenotype and a positive relationship with platelets. Subsequent epitope prediction for the corresponding proteins highlighted vasodilator-stimulated phosphoprotein (VASP) as a potential autoantigen. Moreover, ELISA and immunoblotting confirmed that the anti-VASP antibody present in the serum was significantly elevated in SLE patients with neuropsychiatric involvement and positively associated with demyelination. Conclusion: VASP harbors autoantigenic epitopes associated with neuropsychiatric phenotype, especially the demyelination symptom in SLE, and its antibodies may serve as promising biomarkers in this disease.

3.
FASEB J ; 38(18): e70068, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39302717

RESUMEN

Atrial fibrosis plays a critical role in the pathogenesis of atrial fibrillation (AF). Monocyte chemotactic protein-induced protein-1 (MCPIP1), recognized as a functional ribonuclease (RNase), exacerbates cardiac remodeling and contributes to a range of cardiovascular diseases. However, the involvement of MCPIP1 in atrial fibrosis and development of AF, along with its underlying biological mechanisms, remains poorly understood. This study demonstrated that knockdown of MCPIP1 significantly reduced AF inducibility, decreased left atrial diameter, and ameliorated atrial fibrosis, coinciding with reduced FRAT1/2/Wnt/ß-catenin signaling. Furthermore, the MCPIP1-D141N mutation attenuated AF vulnerability and atrial remodeling compared to MCPIP1 overexpression in an acetylcholine and calcium chloride (ACh-CaCl2)-induced rat model of AF. Conversely, overexpression of FRAT1/2 partially reversed the cardioprotective effects of MCPIP1-D141N mutation. Using H9C2 cell lines, we observed that MCPIP1 may induce a transcriptional effect that downregulates miR-26a-5p expression, and luciferase and RNA immunoprecipitation (RIP) assays substantiated the direct interaction between miR-26a-5p and FRAT1/2. Moreover, overexpression of miR-26a-5p countered MCPIP1-induced atrial remodeling and attenuated the progression of AF. In conclusion, these findings indicate that MCPIP1 facilitates atrial remodeling and the progression of AF by exacerbating miR-26a-5p/FRAT/Wnt axis-mediated atrial fibrosis through its RNase activity in an ACh-CaCl2-induced rat model of AF.


Asunto(s)
Fibrilación Atrial , Remodelación Atrial , Fibrosis , Atrios Cardíacos , MicroARNs , Ratas Sprague-Dawley , Ribonucleasas , Vía de Señalización Wnt , Animales , Ratas , MicroARNs/genética , MicroARNs/metabolismo , Remodelación Atrial/fisiología , Fibrilación Atrial/metabolismo , Fibrilación Atrial/genética , Fibrilación Atrial/patología , Masculino , Ribonucleasas/metabolismo , Ribonucleasas/genética , Atrios Cardíacos/metabolismo , Atrios Cardíacos/patología , Modelos Animales de Enfermedad , Factores de Transcripción/metabolismo , Factores de Transcripción/genética
4.
J Musculoskelet Neuronal Interact ; 24(3): 301-309, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-39219328

RESUMEN

OBJECTIVE: This study aims to assess how enhancing upper limb function on the affected side of stroke influences the gait of the lower limb. METHODS: Forty eligible stroke patients were randomly assigned to either a control group or a treatment group, with 20 patients in each group. Both groups underwent dynamic evaluation using artificial intelligence and computer vision before treatment. This evaluation focused on analyzing the range of motion of the shoulder and elbow during the gait cycle, as well as various gait parameters (such as step length, step speed, and percentage of stance phase) on the affected side. Following evaluation, the control group received routine rehabilitation treatment. RESULTS: The results indicated that there was no significant difference between the two groups before treatment. However, following treatment, there was a notable improvement in the motion of the shoulder and elbow joints on the affected side among patients in the treatment group (p<0.05), whereas the control group showed only slight improvement, which was not statistically significant (p>0.05). CONCLUSION: The improvement in upper limb function on the affected side also appears to positively influence gait recovery. However, it's important to note that the observation period was relatively short. Further studies are needed to confirm whether this effect is sustained over the long term.


Asunto(s)
Inteligencia Artificial , Terapia por Ejercicio , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Extremidad Superior , Humanos , Masculino , Femenino , Rehabilitación de Accidente Cerebrovascular/métodos , Persona de Mediana Edad , Accidente Cerebrovascular/fisiopatología , Accidente Cerebrovascular/complicaciones , Extremidad Superior/fisiopatología , Anciano , Terapia por Ejercicio/métodos , Marcha/fisiología , Rango del Movimiento Articular/fisiología , Adulto , Recuperación de la Función/fisiología , Trastornos Neurológicos de la Marcha/rehabilitación , Trastornos Neurológicos de la Marcha/etiología , Trastornos Neurológicos de la Marcha/fisiopatología
5.
Environ Res ; 263(Pt 1): 119986, 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39270951

RESUMEN

The membrane fouling induced by algal extracellular organic matter (EOM) remain a bottleneck in restricting ultrafiltration (UF) application during harmful algal-water treatment. In current study, the application of heat-activated peroxydisulfate (PMS) and coagulation (Aluminum chlorohydrate, PACI) on membrane fouling behavior during Chlorella-laden water treatment was investigated. The membrane fouling mechanism was analyzed using the extended Derjaguin-Landau-Verwey-Over-beek (XDLVO) theory. The results revealed that separated heat-activated PMS could enhance the filtration flux of EOM at high PMS does >0.2 mM, whereas the membrane fouling was further alleviated by combined heat-activated PMS (0.2-1.0 mM) and PACI (20 mg/L) treatment, especially at low PMS dose. Combined heat-activated PMS and PACI pretreatment could effectively increase the adhesive repulsion between membrane and foulants and reduce the cohesion free energies between organic foulants than those by separated heat-activated PMS treatment, making the initial filtration flux reduced and the cake layer looser. Moreover, the organic foulants of proteins, polysaccharides, and humic-like organics were removed. Cake formation was the major fouling mechanism when EOM was treated with/without separated heat-activated PMS treatment, whereas the membrane fouling mechanism was changed from cake layer formation to pore blocking after combined heat-activated PMS and PACI treatment. Overall, this research provided a feasible method in membrane fouling control during Chlorella -laden water treatment.

6.
JAMA Oncol ; 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39298141

RESUMEN

Importance: Chimeric antigen receptor (CAR) T-cell therapy (CART) has transformed the treatment landscape of hematologic cancer, but has negligible effects for adult solid cancers. In this trial, an autologous CAR T-cell product demonstrated antitumor activity in heavily pretreated patients with metastatic colorectal cancer (mCRC). Objective: To evaluate the safety and efficacy of guanylate cyclase-C (GCC19) CART in participants with metastatic colorectal cancer (mCRC). Design, Setting, and Participants: This single-arm, nonrandomized, phase 1 trial was conducted at the First Hospital of Jilin University from December 3, 2020, to April 13, 2022. Data analysis was conducted from May 2022 to April 2024. Adults with relapsed and refractory mCRC expressing GCC were treated with GCC19CART, a mixture of autologous CAR T cells transduced with lentiviral vectors expressing genes that encode either CD-19 CAR or GCC CAR. Main Outcomes and Measures: Safety and tolerability of CAR T-cell therapy targeting GCC in patients with mCRC without therapeutic options is capable of conferring a reasonable likeliness of clinical benefit. Other outcomes included objective response rate, progression-free survival, overall survival, and immune activation. Results: Of 15 patients 9 (60%) were women, and the median (range) age was 44 (33-61) years. Treatment with GCC19CART was associated with the development of cytokine release syndrome and diarrhea in most patients, all of which were self-limited and manageable. The objective response rate was 40%, with a partial response in 2 of 8 and 4 of 7 patients treated with either 1 × 106 cells/kg or 2 × 106 cells/kg. Median overall survival was 22.8 months (95% CI, 13.4-26.1) at data cutoff; the median progress-free survival was 6.0 months in the high dose level group (95% CI, 3.0 to not available). Conclusions and Relevance: The results of this nonrandomized clinical trial suggest that GCC19CART was safe and tolerable in heavily pretreated patients with mCRC and is the first CAR T-cell therapy known to produce objective clinical activity in refractory cancer. Given the paucity of effective therapeutics developed for colorectal cancer in recent decades, the observation that CD-19 CART target engagement can robustly induce GCC19CART target engagement sufficient to produce objective activity may serve as a foundation to develop effective cellular therapy in mCRC and other solid cancers. Trial Registration: Chinese Clinical Trial Registry: ChiCTR2000040645.

7.
J Infect ; 89(5): 106273, 2024 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-39278277

RESUMEN

OBJECTIVE: To explore the risk factors for pulmonary bacterial infection (PBI) after lung transplantation (LTX) and to evaluate the impact of PBI on short-term postoperative mortality. METHODS: We retrospectively analyzed data on 549 recipients who underwent LTX at the Affiliated Wuxi People's Hospital of Nanjing Medical University, China, between January 2018 and December 2021. The risk factors for PBI after LTX were explored by univariate analysis and multivariate logistic regression. Cox proportional hazards regression models were used to estimate the hazard ratios (HR) and 95% confidence intervals (CI) of one-, two-, and three-year mortality. Subgroup analysis was performed by the time of postoperative PBI (≤7 days or 8-30 day after surgery). RESULTS: The incidence of postoperative PBI in 549 recipients was 82.70% (454/549). Preoperative history of infections with multidrug-resistant bacteria (OR 12.34, 95% CI 1.69-1572.39), Acinetobacter baumannii infection in donor (OR 3.08, 95% CI 1.26-9.66), and longer cold ischemia time (OR 1.16, 95% CI 1.03-1.32) were risk factors for postoperative PBI. Postoperative PBI was associated with one-year (HR 1.80, 95% CI 1.09-2.96), two-year (HR 1.91, 95% CI 1.20-3.04), and three-year mortality (HR 2.03, 95% CI 1.29-3.19). Subgroup analysis showed that PBI within 7 days after surgery was associated with one-year (HR 1.86, 95% CI 1.12-3.08), two-year (HR 1.99, 95% CI 1.25-3.17), and three-year mortality (HR 2.13, 95% CI 1.35-3.36), while PBI at 8-30 days after surgery was not associated with short-term mortality (one-year: HR 1.36, 95% CI 0.69-2.69; two-year: HR 1.48, 95% CI 0.80-2.76; three-year: HR 1.51, 95% CI 0.82-2.77). CONCLUSIONS: Donor-recipient and surgical factors are risk factors for PBI after LTX. Active prevention and treatment of PBI within the first 7 days after surgery may improve short-term survival.

8.
Bioinformatics ; 2024 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-39298462

RESUMEN

SUMMARY: Sketching technologies have recently emerged as a promising solution for real-time, large-scale phylogenetic analysis. However, existing sketching-based phylogenetic tools exhibit drawbacks, including platform restrictions, deficiencies in tree visualization, and inherent distance estimation bias. These limitations collectively impede the overall convenience and efficiency of the analysis. In this study, we introduce Kssdtree, an interactive Python package designed to address these challenges. Kssdtree surpasses other sketching-based tools by demonstrating superior performance in terms of both accuracy and time efficiency on comprehensive benchmarking datasets. Notably, Kssdtree offers key advantages such as intra-species phylogenomic analysis and GTDB-based phylogenetic placement analysis, significantly enhancing the scope and depth of phylogenetic investigations. Through extensive evaluations and comparisons, Kssdtree stands out as an efficient and versatile method for real-time, large-scale phylogenetic analysis. AVAILABILITY: The Kssdtree Python package is freely accessible at https://pypi.org/project/kssdtree and source code is available at https://github.com/yhlink/kssdtree. The documentation and instantiation for the software is available at https://kssdtree.readthedocs.io/en/latest. The video tutorial is available at https://youtu.be/_6hg59Yn-Ws. SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.

9.
Adv Sci (Weinh) ; : e2402727, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39285656

RESUMEN

Lattice materials are an emerging family of advanced engineering materials with unique advantages for lightweight applications. However, the mechanical behaviors of lattice materials at ultra-low relative densities are still not well understood, and this severely limits their lightweighting potential. Here, a high-precision micro-laser powder bed fusion technique is dveloped that enables the fabrication of metallic lattices with a relative density range much wider than existing studies. This technique allows to confirm that cubic lattices in compression undergo a yielding-to-buckling failure mode transition at low relative densities, and this transition fundamentally changes the usual strength ranking from plate > shell > truss at high relative densities to shell > plate > truss or shell > truss > plate at low relative densities. More importantly, it is shown that increasing bending energy ratio in the lattice through imperfections such as slightly-corrugated geometries can significantly enhance the stability and strength of lattice materials at ultra-low relative densities. This counterintuitive result suggests a new way for designing ultra-lightweight lattice materials at ultra-low relative densities.

10.
Heliyon ; 10(16): e36109, 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39247362

RESUMEN

The Erlang loss formula, also known as the Erlang B formula, has been known for over a century and has been used in a wide range of applications, from telephony to hospital intensive care unit management. It provides the blocking probability of arriving customers to a loss system involving a finite number of servers without a waiting room. Because of the need to introduce priorities in many services, an extension of the Erlang B formula to the case of a loss system with preemptive priority is valuable and essential. This paper analytically establishes the consistency between the global balance (steady state) equations for a loss system with preemptive priorities and a known result obtained using traffic loss arguments for the same problem. This paper, for the first time, derives this known result directly from the global balance equations based on the relevant multidimensional Markov chain. The paper also addresses the question of whether or not the well-known insensitivity property of the Erlang loss system is also applicable to the case of a loss system with preemptive priorities, provides explanations, and demonstrates through simulations that, except for the blocking probability of the highest priority customers, the blocking probabilities of the other customers are sensitive to the service time distributions and that a larger service time variance leads to a lower blocking probability of the lower priority traffic.

11.
Dalton Trans ; 53(35): 14767-14778, 2024 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-39162081

RESUMEN

To overcome the disadvantages of poor intrinsic conductivity and stability of ZnCo2O4, a ZnCo2O4@MnMoO4 composite as an emerging pseudocapacitor electrode material with high specific capacitance, environmental friendliness, morphological diversity, and unique hierarchical structure was synthesized via a simple two-step hydrothermal method. The research results indicate that the ZnCo2O4@MnMoO4 composite can present a high specific capacity of 1628 F g-1 at a current density of 1 A g-1 and good cycling stability with 69% capacity retention after 10 000 cycles at 10 A g-1. Hybrid supercapacitors (HSCs) assembled with the ZnCo2O4@MnMoO4 cathode and activated carbon anode can deliver an energy density of 48 W h kg-1 at a power density of 695 W kg-1, and their capacity retention reached 61% after 8000 charge-discharge cycles at a current density of 10 A g-1. This could be attributed to the synergistic effect of the specific surface area and electrical conductivity enhanced by compositing ZnCo2O4 with MnMoO4. As a result, the excellent electrochemical properties show that the ZnCo2O4@MnMoO4 composite has strong application potential for high-performance supercapacitors.

12.
Antioxidants (Basel) ; 13(8)2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39199134

RESUMEN

Sixteen novel antioxidant peptides from Asian swamp eel (ASE) were identified in previous studies. However, their chemical and cellular antioxidant mechanisms remain unclear. Molecular docking of these peptides with ABTS and DPPH radicals revealed the critical role of hydrogen bonding and Pi-Pi stacking hydrophobic interactions between hydrophobic amino acid residues and free radicals. Residues, such as tryptophan, proline, leucine, and valine, played significant roles in these interactions. All these peptides exhibited notable erythrocyte morphoprotective effects in a model of AAPH-induced oxidative damage of human erythrocytes. Erythrocyte hemolysis was reduced primarily through the modulation of both non-enzymatic (GSH/GSSG) and enzymatic antioxidant systems (SOD, CAT, and GSH-Px) by these peptides. A decrease in levels of MDA, LDH release, and hemoglobin oxidation was observed. Among the peptides, VLYPW demonstrated superior chemical and cellular antioxidant activities, which may be attributed to its higher levels of tyrosine and tryptophan, as well as to its increased hydrophobic amino acid content.

13.
Light Sci Appl ; 13(1): 188, 2024 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-39134543

RESUMEN

The surge in interest regarding the next generation of optical fiber transmission has stimulated the development of digital signal processing (DSP) schemes that are highly cost-effective with both high performance and low complexity. As benchmarks for nonlinear compensation methods, however, traditional DSP designed with block-by-block modules for linear compensations, could exhibit residual linear effects after compensation, limiting the nonlinear compensation performance. Here we propose a high-efficient design thought for DSP based on the learnable perspectivity, called learnable DSP (LDSP). LDSP reuses the traditional DSP modules, regarding the whole DSP as a deep learning framework and optimizing the DSP parameters adaptively based on backpropagation algorithm from a global scale. This method not only establishes new standards in linear DSP performance but also serves as a critical benchmark for nonlinear DSP designs. In comparison to traditional DSP with hyperparameter optimization, a notable enhancement of approximately 1.21 dB in the Q factor for 400 Gb/s signal after 1600 km fiber transmission is experimentally demonstrated by combining LDSP and perturbation-based nonlinear compensation algorithm. Benefiting from the learnable model, LDSP can learn the best configuration adaptively with low complexity, reducing dependence on initial parameters. The proposed approach implements a symbol-rate DSP with a small bit error rate (BER) cost in exchange for a 48% complexity reduction compared to the conventional 2 samples/symbol processing. We believe that LDSP represents a new and highly efficient paradigm for DSP design, which is poised to attract considerable attention across various domains of optical communications.

14.
J Thorac Dis ; 16(7): 4702-4710, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39144354

RESUMEN

Background: The prognosis and first-line treatment response of patients with borderline resectable esophageal squamous cell carcinoma (ESCC) are unsatisfactory. We are conducting the borderline resectable esophageal squamous (BRES-1) study to evaluate the safety and efficacy of camrelizumab combined with chemotherapy in patients with borderline resectable ESCC. Methods: A total of 30 patients with borderline resectable ESCC will be enrolled in the BRES-1 study. These patients will undergo three stages of treatment: neoadjuvant therapy, surgery, and adjuvant therapy. Preoperative therapies will include camrelizumab, cisplatin, and nab-paclitaxel. Preoperative therapies will include camrelizumab, which will be given every 3 weeks for 6 weeks at a dose of 200 mg (baseline weight <50 kg, 3 mg/kg), nab-paclitaxel (130 mg/m2 on days 1 and 8 of one period with 21 days, a total of two cycles), and cisplatin (75 mg/m2 on day 1 of one period with 21 days, a total of two cycles). Patients will undergo esophagectomy 3-6 weeks after completing the neoadjuvant treatment. Three weeks after surgery, camrelizumab combined with chemotherapy will continue to be used for two cycles of maintenance therapy. Then, only camrelizumab will be administered for an entire year. The primary endpoint of this study will be pathological complete response (pCR). Discussion: The BRES-1 trial will evaluate the efficacy and safety of camrelizumab combined with chemotherapy for patients with borderline resectable ESCC. Translational research will explore perioperative complications and drug-related adverse events (AEs). Trial Registration: ChiCTR, ChiCTR2200056728. Registered 11 February 2022. https://www.chictr.org.cn/index.aspx.

15.
Front Plant Sci ; 15: 1426626, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39166239

RESUMEN

Introduction: Grazing management is essential to maintain the stability of grassland ecosystems. Methods: To determine the optimal rest-grazing period of alpine meadow, five rest-grazing periods were set based on soil thawing and plant re-greening in this study. The niche, interspecific relationships, and stability of plant communities at different rest-grazing periods were investigated. Results: Rest-grazing during soil thawing resulted in a small niche width and niche overlap of plants, overall positive interspecific associations, and a high stability of plant communities. Delayed rest-grazing time to plant re-greening resulted in a large niche width and niche overlap of plants, overall negative interspecific associations, and a low stability of plant communities. Discussion: Rest-grazing in alpine meadows should begin as soon as possible to promote healthy and sustainable utilization of grasslands.

16.
Med ; 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39121854

RESUMEN

BACKGROUND: We investigated the safety and efficacy of preoperative camrelizumab combined with chemotherapy for treating thoracic borderline resectable esophageal squamous cell carcinoma (Br-ESCC) (ChiCTR2200056728). METHODS: Patients with thoracic Br-ESCC received intravenous camrelizumab plus chemotherapy and underwent esophagectomy. The primary endpoint was the pathologic complete response (pCR) rate. We introduced computed tomography and endoscopic examination into the diagnostic criteria to increase its reproducibility. Additionally, we defined a new resection status, Rbr+/-, for Br-ESCC. FINDINGS: Thirty-one patients with Br-ESCC were ultimately enrolled in this study. Overall, 71.0% (22/31) of the patients underwent esophagectomy. R0 resection was achieved in 81.8% of patients (18/22). pCR and major pathological response were observed in 40.9% (9/22) and 63.6% (14/22) of the resected patients, respectively. Eighteen R0 resection patients were redefined according to our Rbr definition; 61.1% (11/18) were classified as Rbr+ resection, and 38.9% (7/18) were classified as Rbr- resection. With a median postoperative follow-up of 17.9 months, 4 patients out of 11 who underwent Rbr+ resection experienced local recurrence (2 of whom achieved pCR). However, no patients (0/7) who underwent Rbr- resection experienced local recurrence. CONCLUSIONS: Esophagectomy after neoadjuvant immunochemotherapy is a promising radical treatment for Br-ESCC. R0 resection was achieved in 81.8% of patients, and a pCR was observed in 40.9% of resected patients. Even after complete excision, Rbr+ resection leads to a higher rate of local recurrence in patients with Br-ESCC. FUNDING: This study was supported by the Key Scientific Research Projects of the Institutions of Higher Learning in Henan Province (no. 21A320032).

17.
J Vis Exp ; (210)2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39158302

RESUMEN

Endometrial polyps commonly contribute to female infertility, and hysteroscopic resection is the established surgical approach for their treatment. Numerous resection methods are available, with the most used and cost-effective options being cold resection employing micro-scissors or hot resection using an electric loop. However, both methods involve sharp resection, posing a challenge in achieving complete polyp removal while avoiding damage to the uterine endometrium. To address this issue, this study proposes an innovative approach: the combined use of the 6 Fr micro-scissors and forceps under hysteroscopy. The method entails utilizing 6 Fr micro-scissors to initially remove large polyps, followed by using 6 Fr micro-forceps to extract the remaining polyp tissue expeditiously and bluntly near the basal layer of the endometrium. This approach not only prevents surgical damage to the basal layer of the endometrium but also mitigates the risk of residual polyps resulting from incomplete resection. This method is particularly suitable for women with fertility requirements, offering additional considerations for the selection of treatment options for endometrial polyp resection.


Asunto(s)
Histeroscopía , Pólipos , Femenino , Histeroscopía/métodos , Histeroscopía/instrumentación , Pólipos/cirugía , Humanos , Enfermedades Uterinas/cirugía , Instrumentos Quirúrgicos , Endometrio/cirugía , Endometrio/patología
18.
BMC Med Inform Decis Mak ; 24(1): 229, 2024 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-39160522

RESUMEN

BACKGROUND: Patients with airway stenosis (AS) are associated with considerable morbidity and mortality after lung transplantation (LTx). This study aims to develop and validate machine learning (ML) models to predict AS requiring clinical intervention in patients after LTx. METHODS: Patients who underwent LTx between January 2017 and December 2019 were reviewed. The conventional logistic regression (LR) model was fitted by the independent risk factors which were determined by multivariate LR. The optimal ML model was determined based on 7 feature selection methods and 8 ML algorithms. Model performance was assessed by the area under the curve (AUC) and brier score, which were internally validated by the bootstrap method. RESULTS: A total of 381 LTx patients were included, and 40 (10.5%) patients developed AS. Multivariate analysis indicated that male, pulmonary arterial hypertension, and postoperative 6-min walking test were significantly associated with AS (all P < 0.001). The conventional LR model showed performance with an AUC of 0.689 and brier score of 0.091. In total, 56 ML models were developed and the optimal ML model was the model fitted using a random forest algorithm with a determination coefficient feature selection method. The optimal model exhibited the highest AUC and brier score values of 0.760 (95% confidence interval [CI], 0.666-0.864) and 0.085 (95% CI, 0.058-0.117) among all ML models, which was superior to the conventional LR model. CONCLUSIONS: The optimal ML model, which was developed by clinical characteristics, allows for the satisfactory prediction of AS in patients after LTx.


Asunto(s)
Trasplante de Pulmón , Aprendizaje Automático , Humanos , Masculino , Estudios Retrospectivos , Persona de Mediana Edad , Femenino , Adulto , Estudios de Casos y Controles , Constricción Patológica , Complicaciones Posoperatorias , Factores de Riesgo
19.
Chem Sci ; 2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-39170725

RESUMEN

Sodium-ion batteries (SIBs) have attracted wide attention from academia and industry due to the low cost and abundant sodium resources. Despite the rapid industrialization development of SIBs, it still faces problems such as a low initial coulombic efficiency (ICE) leading to a significant decrease in battery energy density (e.g., 20%). Sodium compensation technology (SCT) has emerged as a promising strategy to effectively increase the ICE to 100% and drastically boost battery cycling performance. In this review, we emphasize the importance of SCT in high-performance SIBs and introduce its working principle. The up-to-date advances in different SCTs are underlined in this review. In addition, we elaborate the current merits and demerits of different SCTs. This review also provides insights into possible future research directions in SCT for high-energy SIBs.

20.
Med Mycol ; 62(8)2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39122658

RESUMEN

Cryptococcus neoformans is a widely distributed opportunistic pathogenic fungus. While C. neoformans commonly infects immunocompromised individuals, it can also affect those who are immunocompetent. Transmission of C. neoformans primarily occurs through the respiratory tract, leading to the development of meningitis. The mortality rate of Cryptococcal meningitis is high, and treatment options are limited. Cryptococcus neoformans infections pose a significant public health threat and currently lack targeted and effective response strategies. This study aimed to screen T lymphocyte (cytotoxic T lymphocyte and helper T lymphocyte) and B lymphocyte epitopes derived from four C. neoformans antigens and develop two multi-epitope vaccines by combining them with various adjuvants. Molecular docking results demonstrated that the vaccines bind stably to Toll-like receptor 4 ( and induce innate immunity. The credibility of the molecular docking results was validated through subsequent molecular dynamics simulations. Furthermore, the results of immune simulation analyses underscored the multi-epitope vaccine's capability to effectively induce robust humoral and cellular immune responses within the host organism. These two vaccines have demonstrated theoretical efficacy against C. neoformans infection as indicated by computer analysis. Nevertheless, additional experimental validation is essential to substantiate the protective efficacy of the vaccines.


A multi-epitope Cryptococcus neoformans vaccine covering the most common A and D phenotypes was designed using bioinformatics methods.


Asunto(s)
Biología Computacional , Cryptococcus neoformans , Epítopos de Linfocito B , Epítopos de Linfocito T , Vacunas Fúngicas , Simulación del Acoplamiento Molecular , Cryptococcus neoformans/inmunología , Cryptococcus neoformans/química , Vacunas Fúngicas/inmunología , Epítopos de Linfocito T/inmunología , Epítopos de Linfocito B/inmunología , Humanos , Criptococosis/inmunología , Criptococosis/prevención & control , Receptor Toll-Like 4/inmunología , Antígenos Fúngicos/inmunología , Simulación de Dinámica Molecular , Adyuvantes Inmunológicos , Inmunoinformática
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