Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 131
Filtrar
1.
Digit Health ; 10: 20552076241272525, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39119552

RESUMEN

Objective: With obesity a major health concern and call on healthcare resources in China, we explored the preferences and willingness to pay (WTP) for obesity OMC, including the influencing factors behind WTP and preferences. Method: We recruited 400 obese participants to undertake a discrete choice experiment (DCE) and the contingent value method (CVM) survey. We used CVM to measure obese participants' WTP for one-click services (OCS) and used DCE to estimate obesity participants' preferences and WTP for OMC with different attributes. Results: Obese participants were willing to pay more than RMB80 on average for OCS, and more than 50% of participants had a WTP over RMB50 and 5% had a WTP over RMB300, reflecting the strong willingness of Chinese obese patients to pay for OMC. Educational background, income, ethnicity, previous OMC experience and accessibility to offline hospitals with different levels impacted WTP. The relative importance score of attributes in descending order was cost, doctors' hospital level, doctors' level, online waiting time, consultation time and consultation form. Obese patients preferred lower cost, doctors from higher-level hospitals, doctors with higher expertise levels, shorter waiting time and consultation duration, and telephone consultation were preferred. 30-min waiting time, 15-min consultation duration and telephone consultation were the most economically efficient set we found. Conclusion: To maximize health resources, provincial tertiary and municipal hospitals face different paths to developing obesity OMC platforms. We encouraged young doctors to use OMC. OMC regulators should implement consumer protection policies to optimize OMC pricing and address potential 'unfair' pricing.

2.
Arch Oral Biol ; 167: 106068, 2024 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-39151326

RESUMEN

OBJECTIVES: The aim of this study was to investigate the role and molecular mechanism of proline/arginine-rich end leucine-rich repeat protein (PRELP), a secreted protein in extracellular matrix, in oral squamous cell carcinoma (OSCC) progression. DESIGN: PRELP expression in OSCC was analyzed in the Gene Set Enrichment (GSE) 138206, GSE37991, and GSE23558 datasets as well as cell lines. Also, PRELP expression and its relationship with prognosis and immune infiltration in head and neck squamous cell carcinoma (HNSCC) were confirmed by bioinformatics analysis. The proliferation, apoptosis, invasion, epithelial-to-mesenchymal transition (EMT) and NF-κB activation were detected after alteration of PRELP expression in OSCC cells using CCK-8, EdU, flow cytometry, Transwell, real-time PCR, immunofluorescence and Western blot. Additionally, an NF-κB inhibitor PDTC was used to confirm the regulation mechanism of PRELP. RESULTS: The expression of PRELP in OSCC tissues, cells and in HNSCC samples was low. HNSCC patients with higher PRELP expression was associated with longer overall survival. A positive correlation between PRELP expression and immune cell infiltration was found in HNSCC. Upregulation of PRELP inhibited, whereas PRELP silencing promoted, the proliferation, invasion and EMT of OSCC cells. Also, overexpression of PRELP promoted cell apoptosis. Mechanistically, PRELP suppressed p65 phosphorylation and nuclear translocation. And PDTC treatment partially reversed the influences of PRELP knockdown on the malignant behaviors in OSCC cells. CONCLUSION: PRELP suppressed OSCC progression via inactivation of the NF-κB pathway. Targeting PRELP may be a potential approach for OSCC treatment.


Asunto(s)
Carcinoma de Células Escamosas , Transición Epitelial-Mesenquimal , Proteínas de la Matriz Extracelular , Glicoproteínas , Neoplasias de la Boca , FN-kappa B , Humanos , Apoptosis , Western Blotting , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/genética , Línea Celular Tumoral , Movimiento Celular , Proliferación Celular , Progresión de la Enfermedad , Proteínas de la Matriz Extracelular/genética , Proteínas de la Matriz Extracelular/metabolismo , Citometría de Flujo , Neoplasias de la Boca/patología , Neoplasias de la Boca/metabolismo , Neoplasias de la Boca/genética , FN-kappa B/metabolismo , Pronóstico , Reacción en Cadena en Tiempo Real de la Polimerasa , Transducción de Señal , Carcinoma de Células Escamosas de Cabeza y Cuello/metabolismo , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Carcinoma de Células Escamosas de Cabeza y Cuello/genética , Glicoproteínas/genética , Glicoproteínas/metabolismo
3.
Heliyon ; 10(13): e33639, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39040330

RESUMEN

Purpose: To evaluate the impact of surgical compliance on overall survival (OS) and cancer-specific survival (CSS) in ovarian cancer patients and identify factors influencing surgical compliance. Materials and methods: Data from patients with ovarian cancer in the SEER database (2004-2015) were analyzed to compare the characteristics of patients with high and low surgical compliance. Kaplan-Meier curves and Cox regression models were used to assess the impact of surgical compliance on survival outcomes. Nomograms incorporating surgical compliance and independent prognostic factors were constructed to predict OS and CSS and were validated using internal validation sets. Predictive accuracy was evaluated using Harrell's concordance index (C-index), decision curve analysis (DCA), receiver operating characteristic (ROC) curves, and calibration plots. Binary logistic regression analysis identified factors significantly affecting surgical compliance, and propensity score matching (PSM) was used to adjust for confounders. Results: Among the 41,859 patients, 783 (1.87 %) demonstrated poor surgical compliance, while 41,076 (98.13 %) exhibited good compliance. Surgical compliance has emerged as an independent prognostic indicator for ovarian cancer. Patients with high compliance had significantly better OS and CSS rates (P < 0.0001). The prognostic models were internally validated and showed strong discriminative and calibration capabilities. Factors affecting compliance included older age, advanced pathological stage, metastasis, elevated CA-125 levels, and lower income. After PSM, Kaplan-Meier analysis revealed significantly improved survival in patients with good compliance (P < 0.0001). Conclusion: Surgical compliance is a pivotal and independent predictor of overall and cancer-specific survival in patients undergoing OC. Factors contributing to lower surgical compliance include advanced age, later tumor stage, metastatic spread, elevated CA-125 levels, and reduced family income.

4.
Front Endocrinol (Lausanne) ; 15: 1400204, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38974571

RESUMEN

Objective: Obesity is a major risk factor for non-communicable diseases (NCDs), which has been the leading cause of death nowadays. The aim of this study is to examine the association between total changes in body mass index (BMI) across adulthood and the risk of obesity-related complex multimorbidity in elderly, characterizing the capacity of BMI waves in predicting major chronic diseases. Methods: In this retrospective study, 15,520 participants were analyzed from the National Health and Nutrition Examination Survey (NHANES) from 1999 and 2018. BMI was categorized as obesity (≥30.0 kg/m²), overweight (25.0-29.9 kg/m²), normal weight (18.5-24.9 kg/m²), and underweight (<18.5 kg/m²). Odds ratios (ORs) with 95% confidence interval (CIs) for the relationship between BMI change patterns and major health outcomes included hypertension, cancer, chronic obstructive pulmonary disease, cardiovascular disease, and diabetes, and population attributable fractions (PAFs) of BMI were evaluated. Results: In comparison with participants who remained non-obese, those who are stable obese showed the highest risks of developing at least one chronic disease in later life, with odds ratios of 2.76 (95% CI: 2.20 to 3.45) from age 25 years to 10 years before baseline, 2.90 (2.28 to 3.68) from age 25 years to baseline, and 2.49 (2.11 to 2.95) in the 10-year period before baseline. Moving from non-obese to obese weight-change pattern in all periods (from age 25 years to 10 years before baseline: OR = 1.82; 95% CI, 1.57 to 2.11; from age 25 years to baseline: OR = 1.87; 95% CI, 1.59 to 2.19; from 10 years before baseline to baseline: OR = 1.62; 95% CI, 1.26 to 2.08) and moving from obese to non-obese, the 10-year period before baseline (OR = 1.89; 95% CI, 1.39 to 2.57) was associated with increased risk of chronic diseases. Midlife obesity status can explain the 8.6% risk of occurrence of the chronic diseases in elderly. Conclusions: Maintaining a stable healthy weight and losing weight in early adulthood and midlife are important for better life quality during the aging process. More effective strategies and policies to reduce the prevalence of obesity are needed.


Asunto(s)
Índice de Masa Corporal , Multimorbilidad , Encuestas Nutricionales , Obesidad , Humanos , Obesidad/epidemiología , Obesidad/complicaciones , Femenino , Masculino , Estudios Retrospectivos , Multimorbilidad/tendencias , Persona de Mediana Edad , Anciano , Adulto , Factores de Riesgo , Enfermedad Crónica/epidemiología , Aumento de Peso/fisiología
5.
J Int Med Res ; 52(6): 3000605241255810, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38886867

RESUMEN

Pelvic masses frequently originate from the pelvic cavity and are often associated with uterine, ovarian, or intestinal disorders. This report describes the case of a patient with a pelvic mass diagnosed as a retroperitoneal dermoid cyst at our hospital. We analyzed this case and conducted a literature review, to mitigate the risk of misdiagnosis and enhance the treatment of retroperitoneal masses.


Asunto(s)
Adenomioma , Quiste Dermoide , Neoplasias Retroperitoneales , Neoplasias Uterinas , Humanos , Femenino , Quiste Dermoide/cirugía , Quiste Dermoide/complicaciones , Quiste Dermoide/diagnóstico , Quiste Dermoide/patología , Neoplasias Retroperitoneales/patología , Neoplasias Retroperitoneales/complicaciones , Neoplasias Retroperitoneales/diagnóstico por imagen , Neoplasias Retroperitoneales/diagnóstico , Neoplasias Retroperitoneales/cirugía , Neoplasias Uterinas/patología , Neoplasias Uterinas/complicaciones , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/cirugía , Neoplasias Uterinas/diagnóstico por imagen , Adenomioma/patología , Adenomioma/cirugía , Adenomioma/complicaciones , Adenomioma/diagnóstico , Adenomioma/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adulto
6.
Endocrine ; 85(1): 313-320, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38760615

RESUMEN

OBJECTIVE: Teprotumumab plays an important role in thyroid eye disease pathogenesis and progression. We intend to mine the adverse event (AE) signals from a relevant database, thereby contributing to the safe use of teprotumumab. METHODS: The data obtained from the ASCII data packages in the FAERS database from January 2020 to the second quarter of 2023 were imported into the SAS software (version 9.4) for data cleaning and analysis. Disproportionality analysis was performed using the reporting odds ratio (ROR) in conjunction with the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA) omnibus standard method to detect positive signals. PARTICIPANTS: This retrospective observational study relied on adverse drug reactions reported to the FDA through FAERS, which is a standard public system for spontaneous reporting. RESULTS: Collectively, 2171 AE reports for teprotumumab were collected, among which 108 significant signals were identified involving 17 system organ classes. The SOC of ear and labyrinth disorders included the most AE signals and reports. Muscle spasms, fatigue, headache, nausea, diarrhea, alopecia, blood glucose increased, hypoacusis, tinnitus, and diabetes mellitus were the top ten PTs ranked by the frequency of reporting, meanwhile, the two high-strength signals of thyroid-stimulating immunoglobulin increase (ROR 662.89, 95% CI 182.40-2409.19) and gingival recession (ROR 125.13, 95% CI 79.70-196.45) were not documented in the drug instruction. Meanwhile, we found a higher risk of increased blood glucose, deafness, and decreased appetite for male patients, and headache for female patients. CONCLUSIONS: Clinical application of teprotumumab should be closely monitored for ototoxicity, nail abnormalities, and menstrual changes, as well as for AEs not mentioned in the drug instruction, including gingival recession, thyroid-stimulating immunoglobulin increase, and so on.


Asunto(s)
Sistemas de Registro de Reacción Adversa a Medicamentos , Anticuerpos Monoclonales Humanizados , Bases de Datos Factuales , Humanos , Masculino , Femenino , Estudios Retrospectivos , Sistemas de Registro de Reacción Adversa a Medicamentos/estadística & datos numéricos , Anticuerpos Monoclonales Humanizados/efectos adversos , Persona de Mediana Edad , Estados Unidos/epidemiología , Adulto , Anciano , Adulto Joven , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología
7.
Ther Innov Regul Sci ; 58(4): 773-787, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38683419

RESUMEN

BACKGROUND: Diabetes, a chronic disease worldwide, may be associated with a poorer prognosis in patients with coronavirus disease 2019 (COVID-19). While some antihyperglycemic medications may be beneficial, others may increase the risk of adverse clinical outcomes of COVID-19. We aimed to analyze the effect of antihyperglycemic medications on COVID-19. METHODS: We searched the Web of Science, Cochrane Library, EMBASE, PubMed, and Scopus databases from December 2019 to June 2022 to identify literature related to patients with COVID-19 and type 2 diabetes mellitus (T2DM) treated with antihyperglycemic medications. RESULTS: 56 studies were included in the analysis. Metformin (OR 0.66; 95% CI 0.58-0.74; p < 0.05), Glucagon-like peptide-1 receptor agonist (GLP-1ra) (OR 0.73; 95% CI 0.59-0.91; p < 0.05), and sodium-dependent glucose transporters 2 inhibitor (SGLT 2i) (OR 0.77; 95% CI 0.69-0.87; p < 0.05) were associated with lower mortality risk, while insulin was associated with increased mortality risk (OR 1.40; 95% CI 1.26-1.55; p < 0.05). Meanwhile, metformin (OR 0.65; 95% CI 0.50-0.85; p < 0.05) and GLP-1ra (OR 0.84; 95% CI 0.76-0.94; p < 0.05) were significantly associated with decreased severe manifestation risk. What's more, metformin (OR 0.77; 95% CI 0.62-0.96; p < 0.05), GLP-1ra (OR 0.86; 95% CI 0.81-0.92; p < 0.05), and SGLT 2i (OR 0.87; 95% CI 0.79-0.97; p < 0.05) were also associated with a decreased risk of hospitalization, but insulin were associated with an increased risk of hospitalization (OR 1.31; 95% CI 1.12-1.52; p < 0.05). Nevertheless, the results of the subgroup analyses showed that the effects of different glucose-lowering agents on COVID-19 may be related to in-hospital use or out-hospital use, elderly or non-elderly patients use, and different geography. CONCLUSION: Metformin, GLP-1ra, and SGLT 2i have shown a positive effect on clinical outcomes in COVID-19, particularly in non-elderly individuals. However, insulin use may pose a higher risk, especially in elderly patients, so need with caution. Meanwhile, DPP-4i, TZD, α-GLUi, and sulfonylureas appeared to have a neutral effect. These results need to be validated in future clinical studies.


Asunto(s)
Tratamiento Farmacológico de COVID-19 , COVID-19 , Diabetes Mellitus Tipo 2 , Hipoglucemiantes , Estudios Observacionales como Asunto , Humanos , Hipoglucemiantes/uso terapéutico , Hipoglucemiantes/efectos adversos , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Metformina/uso terapéutico , Receptor del Péptido 1 Similar al Glucagón/agonistas , SARS-CoV-2 , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Inhibidores del Cotransportador de Sodio-Glucosa 2/efectos adversos
8.
Artículo en Chino | MEDLINE | ID: mdl-38563175

RESUMEN

Objective:To study the difference of postoperative efficacy between two-person three-hand ear endoscopy and microscopic tympanoplasty in patients with chronic suppurative otitis media, and to explore the advantages and disadvantages of two-person three-hand ear endoscopy. Methods:A retrospective study was conducted on 100 patients who underwent tympanoplasty in the Department of Otolaryngology and Head and Neck Surgery of Hunan People's Hospital from April 2019 to March 2023, and they were divided into 2 groups with 50 cases each according to random number table method. Among them, 50 cases underwent endoscopic tympanoplasty in two-person three-hand(group A) and 50 cases underwent routine microscopic tympanoplasty(group B). The operation and postoperative conditions of the two groups were followed up. Results:In group A, the mean operation time was(65.78±18.21) min, the mean intraoperative blood loss was(12.94±4.46) mL, the postoperative pain score was(1.82±0.60) points, and the mean postoperative hospital stay was(2.76±0.72) d. The mean operation time of group B was(89.45±20.38) min, the mean intraoperative blood loss was(22.78±5.74) mL, the postoperative pain score was(2.98±0.85) points, and the mean postoperative hospital stay was(3.82±0.75) d, which with statistical significance between the two groups(P<0.05). Hearing in both groups was significantly improved 6 months after surgery, and the difference was statistically significant before and after surgery(P<0.05), but there was no significant difference between the two groups before surgery and 6 months after surgery(P>0.05). There were 2 cases in group A(4%) and 1 case in group B(2%) complicated with tympanic cord injury during operation, and the difference was not statistically significant(P>0.05). There were 47 cases of A group(94%) of one-time healing of tympanic membrane after operation, 48 cases(96%) of group B, and the difference was not statistically significant(P>0.05). Conclusion:There is no significant difference in cure rate and hearing improvement between two-person three-hand ear endoscopic tympanoplasty and conventional microscope surgery, and the operation time is significantly shortened, the amount of blood loss is less, and the postoperative recovery is faster. It has the advantages of clear operating field, two-person three-hand operation, minimally invasive, and can reach the range of middle ear tympanic sinus and mastoid apex, and the surgical complications are seldom, which is worth promoting.


Asunto(s)
Otitis Media , Timpanoplastia , Humanos , Timpanoplastia/métodos , Pérdida de Sangre Quirúrgica , Estudios Retrospectivos , Estudios de Factibilidad , Otitis Media/cirugía , Resultado del Tratamiento , Enfermedad Crónica , Endoscopía/métodos , Dolor Postoperatorio
9.
JASA Express Lett ; 4(4)2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38568028

RESUMEN

A noise-insensitive cost function was developed for estimating the speed of harmonic acoustic sources in uniform linear motion. This function weighs and integrates the energy distribution of received tones in the time-frequency plane to enhance the robustness of parameter estimation under low signal-to-noise ratio conditions, where weight values are intentionally combined with the law of observed instantaneous frequency. As the cost function is differentiable, the procedure of parameter estimations also has high computing efficiency. Processing data of SWellEx-96 experiments with real ocean noise confirmed the anti-noise capabilities of this cost function to conventional processing methods.

10.
Oncol Res ; 32(5): 943-953, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38686052

RESUMEN

Breast and lung cancers are the leading causes of mortality and most frequently diagnosed cancers in women and men, respectively, worldwide. Although the antitumor activity of chalcones has been extensively studied, the molecular mechanisms of isoliquiritigenin analog 2', 4', 4-trihydroxychalcone (metochalcone; TEC) against carcinomas remain less well understood. In this study, we found that TEC inhibited cell proliferation of breast cancer BT549 cells and lung cancer A549 cells in a concentration-dependent manner. TEC induced cell cycle arrest in the S-phase, cell migration inhibition in vitro, and reduced tumor growth in vivo. Moreover, transcriptomic analysis revealed that TEC modulated the activity of the JAK2/STAT3 and P53 pathways. TEC triggered the senescence-associated secretory phenotype (SASP) by repressing the JAK2/STAT3 axis. The mechanism of metochalcone against breast cancer depended on the induction of SASP via deactivation of the JAK2/STAT3 pathway, highlighting the potential of chalcone in senescence-inducing therapy against carcinomas.


Asunto(s)
Neoplasias de la Mama , Proliferación Celular , Senescencia Celular , Chalconas , Janus Quinasa 2 , Factor de Transcripción STAT3 , Transducción de Señal , Humanos , Factor de Transcripción STAT3/metabolismo , Janus Quinasa 2/metabolismo , Janus Quinasa 2/genética , Neoplasias de la Mama/patología , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Femenino , Chalconas/farmacología , Proliferación Celular/efectos de los fármacos , Ratones , Transducción de Señal/efectos de los fármacos , Animales , Senescencia Celular/efectos de los fármacos , Línea Celular Tumoral , Ensayos Antitumor por Modelo de Xenoinjerto , Movimiento Celular/efectos de los fármacos , Fenotipo
11.
J Alzheimers Dis ; 97(3): 1211-1221, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38217603

RESUMEN

BACKGROUND: Accumulating evidence has demonstrated that hyperglycemia is a possible risk factor for mild cognitive impairment or Alzheimer's disease. Diabetic retinopathy (DR) has been identified as a risk factor for dementia in patients with diabetes. OBJECTIVE: This study aimed to investigate the causal relationships between DR and brain structure, cognitive function, and dementia. METHODS: We performed bidirectional two-sample Mendelian randomization for DR, brain structure, cognitive function, and dementia using the inverse-variance weighted method. RESULTS: Inverse-variance weighted analysis showed the association of DR with vascular dementia (OR = 1.68, 95% CI: 1.01-2.82), and dementia was significantly associated with the increased risk of non-proliferative DR (NPDR) (OR = 1.76, 95% CI: 1.04-2.98). Furthermore, better cognitive performance was significantly associated with a reduced risk of NPDR (OR = 0.85, 95% CI: 0.74-0.98). No association was observed between DR and brain structure. CONCLUSIONS: These findings suggest that the association of DR with vascular dementia. The reciprocal effect of cognitive performance and dementia on NPDR risk highlights the potential benefits of dementia prevention for reducing the burden of DR.


Asunto(s)
Demencia Vascular , Diabetes Mellitus , Retinopatía Diabética , Humanos , Retinopatía Diabética/epidemiología , Retinopatía Diabética/genética , Demencia Vascular/genética , Análisis de la Aleatorización Mendeliana , Encéfalo , Cognición , Estudio de Asociación del Genoma Completo
12.
MedComm (2020) ; 4(6): e464, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38107057

RESUMEN

Signal transducer and activator of transcription 4 (STAT4) is a critical transcription factor for T helper cell differentiation and tumor cells. Although its prognostic role and gene function have been reported in several carcinomas, the role of STAT4 in vitro and in vivo in breast cancer remains poorly understood. The effect of STAT4 in immunotherapy is also unclear. Therefore, we integrated bulk transcriptomics, experiments, and single-cell transcriptomics to systematically analyze its function in prognosis and signaling pathway. Several clinical breast cancer cohorts confirmed STAT4 as a T-cell relevant prognostic biomarker. Overexpressed STAT4 increased programmed cell death ligand 1 (PD-L1) and major histocompatibility complex class II levels in breast cancer cells. In molecular mechanism, transcriptional synergy between STAT4 and STAT3 transactivated interleukin (IL)-12R and involved a positive feedback loop: STAT4/IL-12R/JAK2-STAT3-STAT4, which contributed to the upregulation of PD-L1 expression. The above signaling axis was defined as the STAT4-related pathway and its score was used to predict T-cell expansion and anti-PD1 treatment response. These findings highlight a novel molecular mechanism indirectly regulating PD-L1 through the STAT4-related pathway: IL-12R/JAK2-STAT3-STAT4/PD-L1, and it has potential application in predicting anti-PD-1 immunotherapy response, which may pave the way for stratified immunotherapy in breast cancer.

13.
J Acoust Soc Am ; 154(5): 3125-3144, 2023 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-37966332

RESUMEN

In this study, an underwater source range estimation method based on unsupervised domain adaptation (UDA) is proposed. In contrast to traditional deep-learning frameworks using real-world data, UDA does not require labeling of the measured data, making it more practical. First, a classifier based on a deep neural network is trained with labeled simulated data generated using acoustic propagation models and, then, the adaptive procedure is applied, wherein unlabeled measured data are employed to adjust an adaptation module using the adversarial learning algorithm. Adversarial learning is employed to alleviate the marginal distribution divergence, which reflects the difference between the measured and theoretically computed sound field, in the latent space. This divergence, caused by environmental parameter mismatch or other unknown corruption, can be detrimental to accurate source localization. After the completion of the adaptive procedure, the measured and simulated data are projected to the same space, eliminating distribution discrepancy, which is beneficial for source localization tasks. Experimental results show that range estimation based on UDA outperforms the match-field-processing method under four scenarios of few snapshots, few array elements, low signal-to-noise ratio, and environmental parameter mismatch, verifying the robustness of the method.

14.
Front Endocrinol (Lausanne) ; 14: 1172233, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37484948

RESUMEN

Background: Previous findings about lean body mass (LBM) and cognitive function remain unclear. We aimed to examine this association by using data from the National Health and Nutrition Examination Survey (NHANES). Methods: Using data from the NHANES 2011-2014, we conducted logistic regression models to investigate the relation between the predicted LBM and domain-specific cognitive function assessed by Digit Symbol Substitution Test (DSST), Consortium to Establish a Registry for Alzheimer's Disease Word Learning test (CERAD-WL) and Delayed Recall test (CERAD-DR), and Animal Fluency (AF) for information processing speed, memory, and executive function, respectively. Cognitive impairment was defined as the lowest quartile of each cognitive test in the total population. Sex-stratified analysis was further made. Results: A total of 2955 participants aged 60 and above (mean [SD] age, 69.17[0.20] years; 1511 female [51.13%]) were included in the study. After being adjusted for social economic factors, anthropometric parameters, and diseases, we found a positive association between predicted LBM and information processing speed (Odds ratio of DSST impairment= 0.95, 95%CI= 0.91 to 0.99) regardless of body mass index and sex. Compared with patients in the first quartile of predicted LBM, those in the fourth quartile had an odds ratio of 0.355 (95% confidence interval 0.153-0.822) for DSST impairment. No significant relation in other cognitive tests and predicted LBM was found whether stratified by sex or not. Conclusion: Our findings point to the association between predicted lean body mass and cognitive dysfunction in information processing speed, which could be used for early detection and prevention of deterioration of cognitive function among older adults.


Asunto(s)
Enfermedad de Alzheimer , Disfunción Cognitiva , Femenino , Humanos , Encuestas Nutricionales , Cognición , Función Ejecutiva
15.
Ann Clin Lab Sci ; 53(3): 418-426, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37437929

RESUMEN

OBJECTIVE: Ovarian cancer (OC) is a common malignant tumor in females with high recurrence and poor prognosis. Cisplatin is commonly used for OC clinical treatment, but its efficacy is usually challenged by the chemotherapy resistance of cancer cells. MicroRNAs (miRNAs), including miR-30a-5p, were identified to modulate drug resistance in numerous tumors. However, molecular mechanisms of miR-30a-5p in OC chemoresistance need more illumination. METHODS: MiR-30a-5p and Rap1 interacting factor 1 (RIF1) expression in OC tissues and cells were measured by qRT-PCR. The IC50 of cisplatin-resistant and cisplatin-sensitive OC cells was assessed by MTT assays. OC cell proliferation, apoptosis and migration were measured by EdU assays, TUNEL staining, and wound healing assays, respectively. The protein levels of EMT markers and RIF1 in OC cells were examined by western blotting. The binding capacity between miR-30a-5p and RIF1 was validated by luciferase reporter assays. RESULTS: Our study disclosed miR-30a-5p as a remarkably lowly-expressed miRNA in OC tissues in comparison to matched noncancerous tissues. Compared to parental cell lines, miR-30a-5p was also greatly downregulated in cisplatin-resistant OC cell lines. Additionally, functional assays indicated that miR-30a-5p suppressed malignant behaviors and cisplatin resistance of OC cells. Further, miR-30a-5p was revealed to target and negatively regulate RIF1 expression in OC. Moreover, it was validated that overexpressing RIF1 reverses the inhibitory influence of miR-30a-5p overexpression on malignant behaviors and cisplatin resistance of OC cells. CONCLUSION: MiR-30a-5p reduced cisplatin resistance in OC through downregulation of RIF1, which may be meaningful for targeting drug-resistant tumors.


Asunto(s)
Cisplatino , MicroARNs , Neoplasias Ováricas , Proteínas de Unión a Telómeros , Femenino , Humanos , Apoptosis/genética , Cisplatino/farmacología , Fibrinógeno , MicroARNs/genética , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética , Resistencia a Antineoplásicos
16.
Front Neuroendocrinol ; 70: 101082, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37414372

RESUMEN

Ectopic fat, defined as a specific organ or compartment with the accumulation of fat tissue surrounding organs, is highly associated with obesity which has been identified as a risk factor for cognitive impairment and dementia. However, the relationship between ectopic fat and changes in brain structure or cognition is yet to be elucidated. Here, we investigated the effects of ectopic fat on brain structure and cognitive function via systemic review and meta-analysis. A total of 21 studies were included from electronic databases up to July 9, 2022. We found ectopic fat was associated with decreased total brain volumeand increased lateral ventricle volume. In addition, ectopic was associated with decreased cognitive scores and negatively correlated with cognitive function. More specifically, dementia development were correlated with increased levels of visceral fat. Overall, our data suggested that increased ectopic fat was associated with prominent structural changes in the brain and cognitive decline, an effect driven mainly by increases in visceral fat, while subcutaneous fat may be protective. Our results suggest that patients with increased visceral fat are at risk of developing cognitive impairment and, therefore, represent a subset of population in whom appropriate and timely preventive measures could be implemented.


Asunto(s)
Disfunción Cognitiva , Demencia , Humanos , Cognición , Tejido Adiposo , Encéfalo/diagnóstico por imagen , Disfunción Cognitiva/etiología , Demencia/complicaciones
17.
Biomed Pharmacother ; 163: 114806, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37163782

RESUMEN

In 1971, Folkman proposed that tumors could be limited to very small sizes by blocking angiogenesis. Angiogenesis is the generation of new blood vessels from pre-existing vessels, considered to be one of the important processes in tumor growth and metastasis. Angiogenesis is a complex process regulated by various factors and involves many secreted factors and signaling pathways. Angiogenesis is important in the transport of oxygen and nutrients to the tumor during tumor development. Therefore, inhibition of angiogenesis has become an important strategy in the clinical management of many solid tumors. Combination therapies of angiogenesis inhibitors with radiotherapy and chemotherapy are often used in clinical practice. In this article, we will review common targets against angiogenesis, the most common and up-to-date anti-angiogenic drugs and clinical treatments in recent years, including active ingredients from chemical and herbal medicines.


Asunto(s)
Antineoplásicos , Neoplasias , Humanos , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Neovascularización Patológica/tratamiento farmacológico , Neovascularización Patológica/patología , Neoplasias/tratamiento farmacológico , Neoplasias/patología , Inhibidores de la Angiogénesis/farmacología , Inhibidores de la Angiogénesis/uso terapéutico
18.
Front Immunol ; 14: 1152312, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37033960

RESUMEN

Pancreatic cancer is one of the most dangerous types of cancer today, notable for its low survival rate and fibrosis. Deciphering the cellular composition and intercellular interactions in the tumor microenvironment (TME) is a necessary prerequisite to combat pancreatic cancer with precision. Cancer-associated fibroblasts (CAFs), as major producers of extracellular matrix (ECM), play a key role in tumor progression. CAFs display significant heterogeneity and perform different roles in tumor progression. Tumor cells turn CAFs into their slaves by inducing their metabolic dysregulation, exacerbating fibrosis to acquire drug resistance and immune evasion. This article reviews the impact of metabolic reprogramming, effect of obesity and cellular crosstalk of CAFs and tumor cells on fibrosis and describes relevant therapies targeting the metabolic reprogramming.


Asunto(s)
Fibroblastos Asociados al Cáncer , Neoplasias Pancreáticas , Humanos , Fibroblastos Asociados al Cáncer/metabolismo , Microambiente Tumoral , Neoplasias Pancreáticas/patología , Fibrosis , Neoplasias Pancreáticas
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA