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1.
iScience ; 27(10): 110943, 2024 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-39381738

RESUMO

Federated learning (FL) in healthcare allows the collaborative training of models on distributed data sources, while ensuring privacy and leveraging collective knowledge. However, as each institution collects data separately, conventional FL cannot leverage the different features depending on the institution. We proposed a personalized progressive FL (PPFL) approach that leverages client-specific features and evaluated with real-world datasets. We compared the performance of in-hospital mortality prediction between our model and conventional models based on accuracy and area under the receiver operating characteristic (AUROC). PPFL achieved an accuracy of 0.941 and AUROC of 0.948, which were higher than the scores of the local models and FedAvg algorithm. We also observed that PPFL achieved a similar performance for cancer data. We identified client-specific features that can contribute to mortality. PPFL is a personalized federated algorithm for heterogeneously distributed clients that expands the feature space for client-specific vertical feature information.

2.
PLoS One ; 19(10): e0311810, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39432469

RESUMO

There is an urgent need for better biomarkers for the detection of early-stage breast cancer. Utilizing untargeted metabolomics and lipidomics in conjunction with advanced data mining approaches for metabolism-centric biomarker discovery and validation may enhance the identification and validation of novel biomarkers for breast cancer screening. In this study, we employed a multimodal omics approach to identify and validate potential biomarkers capable of differentiating between patients with breast cancer and those with benign tumors. Our findings indicated that ether-linked phosphatidylcholine exhibited a significant difference between invasive ductal carcinoma and benign tumors, including cases with inconsistent mammography results. We observed alterations in numerous lipid species, including sphingomyelin, triacylglycerol, and free fatty acids, in the breast cancer group. Furthermore, we identified several dysregulated hydrophilic metabolites in breast cancer, such as glutamate, glycochenodeoxycholate, and dimethyluric acid. Through robust multivariate receiver operating characteristic analysis utilizing machine learning models, either linear support vector machines or random forest models, we successfully distinguished between cancerous and benign cases with promising outcomes. These results emphasize the potential of metabolic biomarkers to complement other criteria in breast cancer screening. Future studies are essential to further validate the metabolic biomarkers identified in our study and to develop assays for clinical applications.


Assuntos
Biomarcadores Tumorais , Neoplasias da Mama , Detecção Precoce de Câncer , Aprendizado de Máquina , Metabolômica , Humanos , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/metabolismo , Feminino , Biomarcadores Tumorais/metabolismo , Metabolômica/métodos , Pessoa de Meia-Idade , Detecção Precoce de Câncer/métodos , Adulto , Idoso , Curva ROC , Estadiamento de Neoplasias
3.
Radiat Oncol J ; 42(3): 192-199, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39354822

RESUMO

PURPOSE: For tonsillar cancer with multiple ipsilateral neck lymph nodes, the safety and efficacy of unilateral radiotherapy (RT) have long been a topic of debate. We performed retrospective analyses of patients having ipsilateral neck lymph nodes treated with unilateral RT in two tertiary referral hospitals. MATERIALS AND METHODS: This study accrued 29 patients who were diagnosed as well-lateralized tonsillar cancer with multiple ipsilateral neck lymph nodes and underwent unilateral RT from March 2000 to March 2020. Patients underwent treatment with one of the following options or a combination of them: induction chemotherapy, surgery, RT, and concurrent chemoradiotherapy. We analyzed the recurrence pattern and survival with special attention to contralateral neck failure. Also, treatment-related toxicities were compared with a 1:1 matched cohort of those who received bilateral RT, using propensity score matching analysis. RESULTS: At a median follow-up of 68 months, no contralateral neck failure was observed. Five-year actuarial locoregional recurrence-free survival, distant metastasis-free survival, and overall survival were 85.6%, 91.8%, and 92.7%, respectively. Both the acute and chronic grade 2 xerostomia occurred in 10.3% of the patients. When the toxicity for unilateral RT was compared to that of bilateral RT using a propensity score-matched cohort, a significantly lower rate of acute xerostomia was observed in unilateral RT group (55.1% vs. 82.7%, p=0.002), primarily at grade 2 level (10.3% vs. 51.7%, respectively). CONCLUSION: The results of our study suggest that unilateral RT can be safely performed in well-lateralized tonsillar cancer patients with multiple ipsilateral neck lymph nodes.

4.
Cancers (Basel) ; 16(18)2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39335094

RESUMO

The role of combining neoadjuvant endocrine therapy with conventional chemotherapy remains unclear; therefore, we conducted an open-label, single-center, nonrandomized phase II trial to assess the effect of this combination. Patients with previously untreated stage II or III HR-positive, HER2-negative breast cancer received concurrent letrozole 2.5 mg with standard neoadjuvant chemotherapy. The primary endpoint was pathologic complete response (pCR) at the time of surgery. We used Simon's minimax two-stage design; a pCR rate > 6% was necessary at the first stage to continue. Between November 2017 and November 2020, 53 women were enrolled in the first stage of the trial. Their median age was 49 years (range, 33-63), and 60% of them were premenopausal. Subsequently, 66% and 34% of patients with clinical stages II and III, respectively, were included; 93% had clinically node-positive disease. Two patients (4%) achieved pCR after neoadjuvant chemo-endocrine treatment, which did not satisfy the criteria for continuing to the second stage. The overall response rate was 83%. During the median follow-up of 53.7 months, the 3-year disease-free survival and overall survival rates were 87% and 98%, respectively. Neutropenia was the most common grade 3/4 adverse event (40%), but rarely led to febrile neutropenic episodes (4%). Myalgia (32%), nausea (19%), constipation (17%), heartburn (11%), oral mucositis (9%), and sensory neuropathy (9%) were frequently observed, but classified as grade 1 or 2. No deaths occurred during preoperative treatment. The addition of letrozole to standard neoadjuvant chemotherapy was safe and beneficial in terms of overall response rate, but did not provide a higher pCR rate in locally advanced HR-positive, HER2-negative breast cancer. Further research is needed to enhance neoadjuvant treatment strategies for this cancer subtype.

5.
J Pers Med ; 14(9)2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39338195

RESUMO

BACKGROUND: We designed a multi-institutional retrospective study to investigate the previously unreported failure pattern, survivals, and prognostic factors after postoperative radiotherapy (PORT) in triple negative breast cancer (TNBC) patients in South Korea. MATERIALS AND METHODS: We retrospectively reviewed 699 patients with TNBC who underwent PORT at six institutions between 2008 and 2010. The median follow-up period was 94 months (range: 7-192 months). There were 216, 380, and 100 patients in stages I, II, and III, respectively. RESULTS: After 94 months post-treatment, all patients with pathologic complete remission after neoadjuvant chemotherapy were alive without any failure. Distant metastasis was the main cause of failure. The 5-year overall survival rate was 91.4%, 5-year loco-regional relapse-free survival rate (LRRFS) was 92.3%, 5-year distant metastasis-free survival rate (DMFS) was 89.4%, and 5-year disease-free survival rate (DFS) was 85.2%. On multivariate (Cox) analysis, T and N stages were significant prognostic factors for survival, and lympho-vascular invasion (LVI) was a significant factor for LRRFS and DMFS. Ki-67 expression was significantly associated with LRRFS and DFS. CONCLUSION: We verified that T and N stages, LVI, and Ki-67 expression were significantly associated with survival outcomes after PORT in TNBC.

6.
Life Sci ; 356: 123042, 2024 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-39233198

RESUMO

AIMS: Primary sclerosing cholangitis (PSC) is a cholestatic liver disease that affects the hepatic bile ducts, leading to hepatic inflammation and fibrosis. PSC can also impact skeletal muscle through the muscle-liver axis, resulting in sarcopenia, a complication characterized by a generalized loss of muscle mass and strength. The underlying mechanisms and therapy of PSC-induced sarcopenia are not well understood, but one potential regulator is the transcription factor forkhead box protein O1 (FOXO1), which is involved in the ubiquitin proteasome system. Thus, the aim of this study is to assess the pharmacological potential of FOXO1 inhibition for treating PSC-induced sarcopenia. MATERIALS AND METHODS: To establish diet-induced PSC model, we provided mice with a 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet for 4 weeks. Mice were intramuscularly injected with AS1842856 (AS), a FOXO1 inhibitor, at a dose of 3.5 mg/kg twice a week for last two weeks. C2C12 myotubes with cholic acid (CA) or deoxycholic acid (DCA) were treated with AS. KEY FINDINGS: We observed a decrease in muscle size and performance in DDC-fed mice with upregulated expression of FOXO1 and E3 ligases such as ATROGIN1 and MuRF1. We found that myotube diameter and MyHC protein level were decreased by CA or DCA in C2C12 myotubes, but treatment of AS reversed these reductions. We observed that intramuscular injection of AS effectively mitigates DDC diet-induced sarcopenia in a rodent PSC model. SIGNIFICANCE: Our study suggests that a FOXO1 inhibitor could be a potential leading therapeutic drug for relieving PSC-induced sarcopenia.


Assuntos
Colangite Esclerosante , Modelos Animais de Doenças , Proteína Forkhead Box O1 , Sarcopenia , Transdução de Sinais , Animais , Sarcopenia/metabolismo , Sarcopenia/etiologia , Sarcopenia/tratamento farmacológico , Sarcopenia/prevenção & controle , Sarcopenia/patologia , Camundongos , Proteína Forkhead Box O1/metabolismo , Colangite Esclerosante/complicações , Colangite Esclerosante/tratamento farmacológico , Colangite Esclerosante/metabolismo , Colangite Esclerosante/patologia , Transdução de Sinais/efeitos dos fármacos , Masculino , Camundongos Endogâmicos C57BL , Músculo Esquelético/metabolismo , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/patologia , Proteínas Musculares/metabolismo , Proteínas Ligases SKP Culina F-Box/metabolismo , Proteínas Ligases SKP Culina F-Box/genética , Ubiquitina-Proteína Ligases/metabolismo , Proteínas com Motivo Tripartido/metabolismo , Proteínas com Motivo Tripartido/genética , Piridinas/farmacologia , Quinolonas
7.
Cell Death Dis ; 15(9): 707, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39349423

RESUMO

Loss of parvalbumin (PV) expressing neurons (PV neurons) is relevant to the underlying mechanisms of the pathogenesis of neurological and psychiatric diseases associated with the dysregulation of neuronal excitatory networks and brain metabolism. Although PV modulates mitochondrial morphology, volume and dynamics, it is largely unknown whether mitochondrial dynamics affect PV expression and what the molecular events are responsible for PV neuronal degeneration. In the present study, L-buthionine sulfoximine (BSO, an inhibitor of glutathione synthesis) did not degenerate PV neurons under physiological condition. However, BSO-induced oxidative stress decreased PV expression and facilitated cyclin-dependent kinase 5 (CDK5) tyrosine (Y) 15 phosphorylation, dynamin-related protein 1 (DRP1)-mediated mitochondrial fission and glutathione peroxidase-1 (GPx1) downregulation in PV neurons. Co-treatment of roscovitine (a CDK5 inhibitor) or mitochondrial division inhibitor-1 (Mdivi-1, an inhibitor of mitochondrial fission) attenuated BSO-induced PV downregulation. WY14643 (an inducer of mitochondrial fission) reduced PV expression without affecting CDK5 Y15 phosphorylation. Following status epilepticus (SE), CDK5 Y15 phosphorylation and mitochondrial fission were augmented in PV neurons. These were accompanied by reduced GPx1-mediated inhibition of NF-κB p65 serine (S) 536 phosphorylation. N-acetylcysteine (NAC), roscovitine and Mdivi-1 ameliorated SE-induced PV neuronal degeneration by mitigating CDK5 Y15 hyperphosphorylation, aberrant mitochondrial fragmentation and reduced GPx1-mediated NF-κB inhibition. Furthermore, SN50 (a NF-κB inhibitor) alleviated SE-induced PV neuronal degeneration, independent of dysregulation of mitochondrial fission, CDK5 hyperactivation and GPx1 downregulation. These findings provide an evidence that oxidative stress may activate CDK5-DRP1- and GPx1-NF-κB-mediated signaling pathways, which would be possible therapeutic targets for preservation of PV neurons in various diseases.


Assuntos
Quinase 5 Dependente de Ciclina , Regulação para Baixo , Dinaminas , Glutationa Peroxidase GPX1 , Glutationa Peroxidase , Dinâmica Mitocondrial , NF-kappa B , Estresse Oxidativo , Parvalbuminas , Transdução de Sinais , Animais , Dinâmica Mitocondrial/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Dinaminas/metabolismo , Dinaminas/genética , NF-kappa B/metabolismo , Parvalbuminas/metabolismo , Quinase 5 Dependente de Ciclina/metabolismo , Quinase 5 Dependente de Ciclina/genética , Glutationa Peroxidase/metabolismo , Glutationa Peroxidase/genética , Regulação para Baixo/efeitos dos fármacos , Neurônios/metabolismo , Neurônios/efeitos dos fármacos , Masculino , Camundongos , Quinazolinonas/farmacologia , Fosforilação/efeitos dos fármacos , Butionina Sulfoximina/farmacologia , Mitocôndrias/metabolismo , Mitocôndrias/efeitos dos fármacos
8.
J Microbiol Biotechnol ; 34(10): 1947-1958, 2024 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-39233526

RESUMO

The human microbiome, consisting of microorganisms that coexist symbiotically with the body, impacts health from birth. Alterations in gut microbiota driven by factors such as diet and medication can contribute to diseases beyond the gut. Synthetic biology has paved the way for engineered microbial therapeutics, presenting promising treatments for a variety of conditions. Using genetically encoded biosensors and dynamic regulatory tools, engineered microbes can produce and deliver therapeutic agents, detect biomarkers, and manage diseases. This review organizes engineered microbial therapeutics by disease type, emphasizing innovative strategies and recent advancements. The scope of diseases includes gastrointestinal disorders, cancers, metabolic diseases, infections, and other ailments. Synthetic biology facilitates precise targeting and regulation, improving the efficacy and safety of these therapies. With promising results in animal models, engineered microbial therapeutics provide a novel alternative to traditional treatments, heralding a transformative era in diagnostics and treatment for numerous diseases.


Assuntos
Microbioma Gastrointestinal , Biologia Sintética , Biologia Sintética/métodos , Humanos , Animais , Doenças Metabólicas/terapia , Doenças Metabólicas/microbiologia , Gastroenteropatias/terapia , Gastroenteropatias/microbiologia , Neoplasias/terapia , Neoplasias/microbiologia , Técnicas Biossensoriais , Terapia Biológica/métodos , Bactérias/genética , Bactérias/metabolismo
9.
Artigo em Inglês | MEDLINE | ID: mdl-39326505

RESUMO

PURPOSE: The role of regional node irradiation (RNI) with whole-breast irradiation (WBI) in patients with pN1 breast cancer receiving taxane-based adjuvant chemotherapy is not well defined. The KROG 1701 trial, a phase 3, multicenter, noninferiority study, aimed to compare the disease-free survival between WBI+RNI and WBI alone in this patient cohort. Comprehensive patient-reported outcomes (PROs) collected at multiple timepoints are reported. METHODS AND MATERIALS: The trial (NCT03269981) enrolled patients with pN1 breast cancer after breast-conserving surgery and taxane-based adjuvant chemotherapy, allocating them to receive either WBI+RNI or WBI only. PROs were assessed using European Organization for Research and Treatment of Cancer Quality-of-Life Questionnaires Core 30and breast cancer-specific module 23 modules at baseline, during radiation therapy, and at subsequent follow-up intervals of 3 to 6 months, and annually up to 4 years. RESULTS: From April 2017 to December 2021, 840 patients were enrolled; 777 received intervention as assigned, and 750 completed baseline PRO questionnaires (387 in WBI+RNI, 363 in WBI only). All PRO domains showed improvements over time (P < .001). During radiation therapy, the WBI+RNI group reported greater fatigue and nausea. Higher arm symptom scores were observed in the WBI+RNI group 3 months post-treatment (P = .030). No other significant PRO domain differences, including arm/breast symptoms, were observed between the 2 groups. CONCLUSIONS: In patients with pN1 breast cancer treated with taxane-based chemotherapy, adding RNI to WBI resulted in minor, temporary declines in specific PRO domains, but these differences were not clinically significant. This indicates that overall patient experience between WBI+RNI and WBI is comparable, supporting the safety and patient tolerability of both treatments.

10.
Neuropharmacology ; 260: 110135, 2024 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-39214451

RESUMO

Glutathione peroxidase-1 (GPx1) and cAMP/Ca2+ responsive element (CRE)-binding protein (CREB) regulate neuronal viability by maintaining the redox homeostasis. Since GPx1 and CREB reciprocally regulate each other, it is likely that GPx1-CREB interaction may play a neuroprotective role against oxidative stress, which are largely unknown. Thus, we investigated the underlying mechanisms of the reciprocal regulation between GPx1 and CREB in the male rat hippocampus. Under physiological condition, L-buthionine sulfoximine (BSO)-induced oxidative stress increased GPx1 expression, extracellular signal-regulated kinase 1/2 (ERK1/2) activity and CREB serine (S) 133 phosphorylation in CA1 neurons, but not dentate granule cells (DGC), which were diminished by GPx1 siRNA, U0126 or CREB knockdown. GPx1 knockdown inhibited ERK1/2 and CREB activations induced by BSO. CREB knockdown also decreased the efficacy of BSO on ERK1/2 activation. BSO facilitated dynamin-related protein 1 (DRP1)-mediated mitochondrial fission in CA1 neurons, which abrogated by GPx1 knockdown and U0126. CREB knockdown blunted BSO-induced DRP1 upregulation without affecting DRP1 S616 phosphorylation ratio. Following status epilepticus (SE), GPx1 expression was reduced in CA1 neurons and DGC. SE also decreased CREB activity CA1 neurons, but not DGC. SE degenerated CA1 neurons, but not DGC, accompanied by mitochondrial elongation. These post-SE events were ameliorated by N-acetylcysteine (NAC, an antioxidant), but deteriorated by GPx1 knockdown. These findings indicate that a transient GPx1-ERK1/2-CREB activation may be a defense mechanism to protect hippocampal neurons against oxidative stress via maintenance of proper mitochondrial dynamics.


Assuntos
Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico , Glutationa Peroxidase GPX1 , Glutationa Peroxidase , Hipocampo , Sistema de Sinalização das MAP Quinases , Dinâmica Mitocondrial , Neurônios , Estresse Oxidativo , Ratos Sprague-Dawley , Estado Epiléptico , Animais , Estresse Oxidativo/efeitos dos fármacos , Estresse Oxidativo/fisiologia , Masculino , Neurônios/metabolismo , Neurônios/efeitos dos fármacos , Glutationa Peroxidase/metabolismo , Hipocampo/metabolismo , Hipocampo/efeitos dos fármacos , Hipocampo/patologia , Dinâmica Mitocondrial/efeitos dos fármacos , Dinâmica Mitocondrial/fisiologia , Estado Epiléptico/induzido quimicamente , Estado Epiléptico/metabolismo , Estado Epiléptico/patologia , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Ratos , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Sistema de Sinalização das MAP Quinases/fisiologia
11.
J Korean Med Sci ; 39(30): e218, 2024 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-39106887

RESUMO

BACKGROUND: Recent studies have reported the burden of attention deficit hyperactivity disorder [ADHD], autism spectrum disorder [ASD], and depressive disorder. Also, there is mounting evidence on the effects of environmental factors, such as ambient air pollution, on these disorders among children and adolescents. However, few studies have evaluated the burden of mental disorders attributable to air pollution exposure in children and adolescents. METHODS: We estimated the risk ratios of major mental disorders (ADHD, ASD, and depressive disorder) associated with air pollutants among children and adolescents using time-series data (2011-2019) obtained from a nationwide air pollution monitoring network and healthcare utilization claims data in the Republic of Korea. Based on the estimated risk ratios, we determined the population attributable fraction (PAF) and calculated the medical costs of major mental disorders attributable to air pollution. RESULTS: A total of 33,598 patients were diagnosed with major mental disorders during 9 years. The PAFs for all the major mental disorders were estimated at 6.9% (particulate matter < 10 µm [PM10]), 3.7% (PM2.5), and 2.2% (sulfur dioxide [SO2]). The PAF of PM10 was highest for depressive disorder (9.2%), followed by ASD (8.4%) and ADHD (5.2%). The direct medical costs of all major mental disorders attributable to PM10 and SO2 decreased during the study period. CONCLUSION: This study assessed the burden of major mental disorders attributable to air pollution exposure in children and adolescents. We found that PM10, PM2.5, and SO2 attributed 7%, 4%, and 2% respectively, to the risk of major mental disorders among children and adolescents.


Assuntos
Poluição do Ar , Transtorno do Deficit de Atenção com Hiperatividade , Material Particulado , Humanos , Criança , Adolescente , República da Coreia/epidemiologia , Poluição do Ar/efeitos adversos , Material Particulado/efeitos adversos , Material Particulado/análise , Masculino , Feminino , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/etiologia , Exposição Ambiental/efeitos adversos , Transtornos Mentais/epidemiologia , Transtornos Mentais/etiologia , Transtorno do Espectro Autista/epidemiologia , Transtorno do Espectro Autista/etiologia , Poluentes Atmosféricos/efeitos adversos , Poluentes Atmosféricos/análise , Dióxido de Enxofre/efeitos adversos , Dióxido de Enxofre/análise , Pré-Escolar , Fatores de Risco , Custos de Cuidados de Saúde
12.
Artigo em Inglês | MEDLINE | ID: mdl-39109400

RESUMO

Background: Digital health technologies have been rapidly adopted during the coronavirus disease 2019 pandemic. In Korea, a home care program, including face-to-face educational consultation and remote patient monitoring, was initiated to improve patients' quality of life. This study focused on patients with end-stage renal disease undergoing peritoneal dialysis to verify the long-term clinical effectiveness of this home care program. Methods: This retrospective cohort study was designed as a pre-post study to analyze the clinical impact of a home care program for patients undergoing peritoneal dialysis in a single tertiary care hospital. A total of 186 patients were selected from June 2017 to May 2022 to identify clinical changes after program implementation by analyzing changes in peritonitis incidence and laboratory test results. Interrupted time series analyses with ordinary least squares linear regression and chi-square tests were used. Results: At baseline, the incidence of peritonitis continuously increased by 0.480 cases per 1,000 patient-months (p = 0.02). After program initiation, the trend significantly decreased by 0.886 cases per 1,000 patient-months (p = 0.02). In addition, the proportion of individuals reaching the clinical target range had increased calcium levels (4.9%p, p = 0.003), stable hemoglobin (1.2%p, p = 0.477), phosphorus (2.8%p, p = 0.09), potassium (-1.6%p, p = 0.22), while parathyroid hormone levels decreased (-6.6%p, p = 0.005). Conclusion: With a reduction in peritonitis incidence and overall improvement in laboratory test results, our study suggests that conducting a home care program for patients undergoing peritoneal dialysis is clinically effective.

13.
ACS Appl Mater Interfaces ; 16(32): 42426-42434, 2024 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-39099087

RESUMO

Micro light-emitting diodes (micro-LEDs) are pivotal in next-generation display technologies, driven by the need for high pixel density. This study introduces a novel methodology utilizing wide sapphire nanomembranes (W-SNM) as a dual-purpose template for high-quality epitaxial growth and the mechanical lift-off of individual micro-LEDs. Micro-LEDs grow individually on W-SNM, obviating the chip singulation process. By employing mechanical fracturing of the thin W-SNM, our method facilitates the transfer of micro-LEDs without the conventional laser lift-off (LLO) process. Previously introduced sapphire nanomembranes (SNM) have shown promise in enhancing epitaxial layer quality; however, they encountered challenges in managing micro-LED size variation and achieving efficient mechanical transfer. Here, we apply simple yet effective adjustments to the SNM structure, specifically, its elevation and widening. This strategic modification allows micro-LEDs to endure applied forces without incurring cracks or defects, ensuring that only the targeted W-SNM are selectively fractured. The mechanically transferred vertical 15 × 15 µm2 micro-LED device operates at an optimal turn-on voltage of 3.3 V. Finite element simulations validate the mechanical strain distribution between the W-SNM and GaN when pressure is applied, confirming the efficacy of our design approach. This pioneering methodology offers a streamlined, efficient pathway for the production and mechanical transfer of micro-LEDs, presenting new avenues for their integration into next-generation, high-performance displays.

14.
Mol Med Rep ; 30(4)2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39155876

RESUMO

Endometrial receptivity is essential for successful embryo implantation and pregnancy initiation and is regulated via various signaling pathways. Adiponectin, an important adipokine, may be a potential regulator of reproductive system functions. The aim of the present study was to elucidate the regulatory role of adiponectin receptor 1 (ADIPOR1) in endometrial receptivity. The endometrial receptivity between RL95­2 and AN3CA cell lines was confirmed using an in vitro JAr spheroid attachment model. 293T cells were transfected with control or short hairpin (sh)ADIPOR1 vectors and RL95­2 cells were transduced with lentiviral particles targeting ADIPOR1. Reverse transcription­quantitative PCR and immunoblot assays were also performed. ADIPOR1 was consistently upregulated in the endometrium during the mid­secretory phase compared with that in the proliferative phase and in receptive RL95­2 cells compared with that in non­receptive AN3CA cells. Stable cell lines with diminished ADIPOR1 expression caused by shRNA showed reduced E­cadherin expression and attenuated in vitro endometrial receptivity. ADIPOR1 regulated AMP­activated protein kinase (AMPK) activity in endometrial epithelial cells. Regulation of AMPK activity via dorsomorphin and 5­aminoimidazole­4­carboxamide ribonucleotide affected E­cadherin expression and in vitro endometrial receptivity. The ADIPOR1/AMPK/E­cadherin axis is vital to endometrial receptivity. These findings can help improve fertility treatments and outcomes.


Assuntos
Proteínas Quinases Ativadas por AMP , Caderinas , Endométrio , Receptores de Adiponectina , Transdução de Sinais , Receptores de Adiponectina/metabolismo , Receptores de Adiponectina/genética , Humanos , Feminino , Endométrio/metabolismo , Caderinas/metabolismo , Caderinas/genética , Proteínas Quinases Ativadas por AMP/metabolismo , Linhagem Celular , Implantação do Embrião , RNA Interferente Pequeno/metabolismo , RNA Interferente Pequeno/genética , Adulto , Aminoimidazol Carboxamida/análogos & derivados , Ribonucleotídeos
15.
Biosens Bioelectron ; 264: 116686, 2024 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-39173339

RESUMO

Cannabinoids are involved in physiological and neuromodulatory processes through their interactions with the human cannabinoid receptor-based endocannabinoid system. Their association with neurodegenerative diseases and brain reward pathways underscores the importance of evaluating and modulating cannabinoid activity for both understanding physiological mechanisms and developing therapeutic drugs. The use of agonists and antagonists could be strategic approaches for modulation. In this study, we introduce a bioelectronic sensor designed to monitor cannabinoid binding to receptors and assess their agonistic and antagonistic properties. We produced human cannabinoid receptor 1 (hCB1R) via an Escherichia coli expression system and incorporated it into nanodiscs (NDs). These hCB1R-NDs were then immobilized on a single-walled carbon nanotube field-effect transistor (swCNT-FET) to construct a bioelectronic sensing platform. This novel system can sensitively detect the cannabinoid ligand anandamide (AEA) at concentrations as low as 1 fM, demonstrating high selectivity and real-time response. It also successfully identified the hCB1R agonist Δ9-tetrahydrocannabinol and observed that the hCB1R antagonist rimonabant diminished the sensor signal upon AEA binding, indicating the antagonism-based modulation of ligand interaction. Consequently, our bioelectronic sensing platform holds potential for ligand detection and analysis of agonism and antagonism.


Assuntos
Técnicas Biossensoriais , Endocanabinoides , Nanotubos de Carbono , Receptor CB1 de Canabinoide , Humanos , Endocanabinoides/metabolismo , Nanotubos de Carbono/química , Receptor CB1 de Canabinoide/metabolismo , Receptor CB1 de Canabinoide/antagonistas & inibidores , Transistores Eletrônicos , Alcamidas Poli-Insaturadas/química , Alcamidas Poli-Insaturadas/farmacologia , Ácidos Araquidônicos/química , Ácidos Araquidônicos/farmacologia , Canabinoides/metabolismo , Canabinoides/farmacologia , Canabinoides/química , Agonistas de Receptores de Canabinoides/farmacologia , Agonistas de Receptores de Canabinoides/química , Dronabinol/farmacologia , Dronabinol/química , Escherichia coli/efeitos dos fármacos , Escherichia coli/metabolismo
16.
Arch Public Health ; 82(1): 127, 2024 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-39160626

RESUMO

BACKGROUND: Limited research exists on the comorbidity of pulmonary tuberculosis with non-communicable diseases (NCDs) and its implications for healthcare utilization in Indonesia. The lack of investigation into NCD comorbidity among pulmonary tuberculosis patients could adversely affect both the healthcare system and the national health insurance scheme. Understanding the NCD comorbidity among pulmonary tuberculosis patients, associated factors, and healthcare utilization is crucial for ensuring the effective and efficient delivery of health services. METHOD: This study utilized an observational cross-sectional design based on anonymized sample data from tuberculosis cases covered by Indonesia's National Health Insurance in 2021. Chi-square tests were employed to analyze dependent and independent variables, while unadjusted and adjusted logistic regressions were used to explore further associations. RESULTS: The prevalence of NCD comorbidity in tuberculosis patients was 11.81%. Aged over 60 (aOR 5.16; [CI] 4.23-6.3), married (aOR 1.19; [CI] 1.05-1.34), and unemployed (aOR 1.27; [CI] 1.08-1.49) were associated with the NCD comorbidity in pulmonary tuberculosis patients. Factors associated with increased inpatient service utilization among pulmonary tuberculosis patients included aged over 60 (aOR 5.69; [CI] 4.81-6.74), male (aOR 1.32; [CI] 1.23-1.40), self-employment (aOR 1.42; [CI] 1.29-1.56), having insurance subsidized by central government (aOR 1.89; [CI] 1.73-2.08) or local government funds (aOR 1.75; [CI] 1.58-1.93), and having comorbidity non-communicable diseases (aOR 1.80; [CI] 1.66-1.96). CONCLUSION: Pulmonary tuberculosis patients exhibit a significant prevalence of NCD comorbidity, which substantially impacts healthcare utilization. Early detection and management of these conditions are critical to mitigate burdens on both the healthcare system and the financial sustainability of the national health insurance scheme. Integrating health services for tuberculosis and NCDs through bidirectional screening is essential for comprehensive patient care.

17.
Sci Rep ; 14(1): 20058, 2024 08 29.
Artigo em Inglês | MEDLINE | ID: mdl-39209945

RESUMO

This study aimed to establish a deep learning-based predictive model for the prognosis of idiopathic sudden sensorineural hearing loss (SSNHL). Data from 1108 patients with SSNHL between January 2015 and May 2023 were retrospectively analyzed. Patients underwent standardized treatment protocols including high-dose steroid therapy and hearing outcomes were assessed after three months using Siegel's criteria and the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) classification. For predicting patient recovery, a two-layered classification process was implemented. Initially, a set of 22 Multilayer Perceptrons (MLP) networks was employed to categorize the patients. The outcomes from this initial categorization were subsequently relayed to a second-layer meta-classifier for final prognosis determination. The validity of this methodology was ascertained through a K-fold cross-validation procedure executed with 10 distinct splits. The prediction model for complete recovery, based on Siegel's criteria, demonstrated an accuracy of 0.892 and area under the curve (AUC) of 0.922. For the class A prediction, according to AAO-HNS classification, the model showed an accuracy of 0.847 and AUC of 0.918. These results suggest that the model may have the potential to contribute to the establishment of tailored patient management strategies by predicting hearing recovery in patients with SSNHL.


Assuntos
Aprendizado Profundo , Perda Auditiva Neurossensorial , Perda Auditiva Súbita , Humanos , Perda Auditiva Neurossensorial/diagnóstico , Perda Auditiva Neurossensorial/fisiopatologia , Perda Auditiva Neurossensorial/tratamento farmacológico , Masculino , Feminino , Pessoa de Meia-Idade , Perda Auditiva Súbita/diagnóstico , Perda Auditiva Súbita/tratamento farmacológico , Perda Auditiva Súbita/terapia , Perda Auditiva Súbita/fisiopatologia , Estudos Retrospectivos , Adulto , Prognóstico , Idoso , Recuperação de Função Fisiológica , Algoritmos , Audição/fisiologia
18.
Nature ; 632(8026): 893-902, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39048820

RESUMO

Treatment assessment and patient outcome for sepsis depend predominantly on the timely administration of appropriate antibiotics1-3. However, the clinical protocols used to stratify and select patient-specific optimal therapy are extremely slow4. In particular, the major hurdle in performing rapid antimicrobial susceptibility testing (AST) remains in the lengthy blood culture procedure, which has long been considered unavoidable due to the limited number of pathogens present in the patient's blood. Here we describe an ultra-rapid AST method that bypasses the need for traditional blood culture, thereby demonstrating potential to reduce the turnaround time of reporting drug susceptibility profiles by more than 40-60 h compared with hospital AST workflows. Introducing a synthetic beta-2-glycoprotein I peptide, a broad range of microbial pathogens are selectively recovered from whole blood, subjected to species identification or instantly proliferated and phenotypically evaluated for various drug conditions using a low-inoculum AST chip. The platform was clinically evaluated by the enrolment of 190 hospitalized patients suspected of having infection, achieving 100% match in species identification. Among the eight positive cases, six clinical isolates were retrospectively tested for AST showing an overall categorical agreement of 94.90% with an average theoretical turnaround time of 13 ± 2.53 h starting from initial blood processing.


Assuntos
Antibacterianos , Bactérias , Testes de Sensibilidade Microbiana , Procedimentos Analíticos em Microchip , Sepse , Humanos , Antibacterianos/farmacologia , Bactérias/efeitos dos fármacos , Bactérias/isolamento & purificação , Hemocultura/instrumentação , Hemocultura/métodos , Testes de Sensibilidade Microbiana/instrumentação , Testes de Sensibilidade Microbiana/métodos , Estudos Retrospectivos , Sepse/microbiologia , Sepse/tratamento farmacológico , Sepse/sangue , Sepse/diagnóstico , Fatores de Tempo , beta 2-Glicoproteína I , Procedimentos Analíticos em Microchip/métodos
19.
Radiother Oncol ; 199: 110461, 2024 10.
Artigo em Inglês | MEDLINE | ID: mdl-39067706

RESUMO

OBJECTIVES: To investigate the potential relationship between trastuzumab emtansine (T-DM1) treatment and radionecrosis induced by brain stereotactic radiosurgery (SRS) in patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer. MATERIALS AND METHODS: Patients with HER2-positive breast cancer who were diagnosed with brain metastasis and received both SRS and HER2-targeted agents between 2012 and 2022 were retrospectively analyzed. Patients who received T-DM1 within 1 year (either before or after) of SRS were considered as 'T-DM1 exposure (+)'. T-DM1 exposure (-) group had other HER2-targeted agents or received T-DM1 more than 1 year before or after SRS. Symptomatic radionecrosis was defined as Common Terminology Criteria for Adverse Events grade 2 or greater. RESULTS: A total of 103 patients with 535 treatment sessions were included from seven tertiary medical centers in Korea and Italy. The median follow-up duration was 15.5 months (range 1.1-101.9). By per-patient analysis, T-DM1 exposure (+) group had an increased risk of overall radionecrosis after multivariate analysis (HR 2.71, p = 0.020). Additionally, T-DM1 exposure (+) group was associated with a higher risk of symptomatic radionecrosis compared to T-DM1 exposure (-) patients (HR 4.34, p = 0.030). In per-treatment analysis, T-DM1 exposure (+) was linked to higher incidences of overall (HR 3.13, p = 0.036) and symptomatic radionecrosis (HR 10.4, p = 0.013) after multivariate analysis. A higher prevalence of radionecrosis was observed with T-DM1 exposure (+) and a previous history of whole brain radiotherapy. CONCLUSION: An increased risk of radionecrosis was observed in patients receiving T-DM1 with brain SRS. Further research is needed to better understand the optimal sequence and interval for administering T-DM1 and SRS.


Assuntos
Ado-Trastuzumab Emtansina , Antineoplásicos Imunológicos , Neoplasias Encefálicas , Neoplasias da Mama , Necrose , Lesões por Radiação , Radiocirurgia , Receptor ErbB-2 , Humanos , Feminino , Neoplasias da Mama/patologia , Radiocirurgia/efeitos adversos , Neoplasias Encefálicas/secundário , Pessoa de Meia-Idade , Ado-Trastuzumab Emtansina/uso terapêutico , Ado-Trastuzumab Emtansina/efeitos adversos , Necrose/etiologia , Lesões por Radiação/etiologia , Lesões por Radiação/patologia , Receptor ErbB-2/metabolismo , Estudos Retrospectivos , Idoso , Adulto , Antineoplásicos Imunológicos/uso terapêutico , Antineoplásicos Imunológicos/efeitos adversos , Trastuzumab/uso terapêutico , Trastuzumab/efeitos adversos , Terapia Combinada
20.
Cancer Res Treat ; 2024 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-38993091

RESUMO

Purpose: This study aims to evaluate the treatment approaches and locoregional patterns for Adenoid cystic carcinoma (ACC) in the breast, which is an uncommon malignant tumor with limited clinical data. Materials and Methods: A total of 93 patients diagnosed with primary ACC in the breast between 1992 and 2022 were collected from multi-institutions. All patients underwent surgical resection, including breast-conserving surgery (BCS) or total mastectomy (TM). The recurrence patterns and locoregional recurrence-free survival (LRFS) were assessed. Results: Seventy-five patients (80.7%) underwent BCS, and 71 of them (94.7%) received post-operative radiation therapy (PORT). Eighteen patients (19.3%) underwent TM, with 5 of them (27.8%) also receiving PORT. With a median follow-up of 50 months, the LRFS rate was 84.2% at 5 years. Local recurrence (LR) was observed in 5 patients (5.4%) and 4 cases (80%) of the LR occurred in the tumor bed. Three of LR (3/75, 4.0%) had a history of BCS and PORT, meanwhile, two of LR (2/18, 11.1%) had a history of mastectomy. Regional recurrence occurred in 2 patients (2.2%), and both cases had a history of PORT with (n=1) and without (n=1) irradiation of the regional lymph nodes. Partial breast irradiation (p=0.35), BCS (p=0.96) and PORT in BCS group (p=0.33) had no significant association with LRFS. Conclusion: BCS followed by PORT was the predominant treatment approach for ACC of the breast and local recurrence mostly occurred in the tumor bed. The findings of this study suggest that partial breast irradiation might be considered for PORT in primary breast ACC.

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