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1.
Chin Med ; 19(1): 122, 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39252102

RESUMEN

BACKGROUND: Traditional Chinese medicine (TCM) has been hailed as a rich source of medicine, but many types of herbs and their functions still need to be rapidly discovered and elucidated. HerboChip, a target-based drug screening platform, is an array of different fractions deriving from herbal extracts. This study was designed to identify effective components from TCM that interact with vascular endothelial growth factor (VEGF) as a target using HerboChip. METHODS: Selected TCMs that are traditionally used as remedies for cancer prevention and wound healing were determined and extracted with 50% ethanol. Biotinylated-VEGF was hybridized with over 500 chips coated with different HPLC-separated fractions from TCM extracts and straptavidin-Cy5 was applied to identify plant extracts containing VEGF-binding fractions. Cytotoxicity of selected herbal extracts and their activities on VEGF-mediated angiogenic functions were evaluated. RESULTS: Over 500 chips were screened within a week, and ten positive hits were identified. The interaction of the identified herbal extracts with VEGF was confirmed in cultured endothelial cells. The identified herbs promoted or inhibited VEGF-mediated cell proliferation, migration and tube formation. Results from western blotting analysis demonstrated the identified herbal extracts significantly affected VEGF-triggered phosphorylations of eNOS, Akt and Erk. Five TCMs demonstrated potentiating activities on the VEGF response and five TCMs revealed suppressive activities. CONCLUSIONS: The current results demonstrated the applicability of the HerboChip platform and systematically elucidated the activity of selected TCMs on angiogenesis and its related signal transduction mechanisms.

2.
Int J Biol Sci ; 20(10): 3784-3801, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39113709

RESUMEN

Ubiquitination, a prevalent and highly dynamic reversible post-translational modification, is tightly regulated by the deubiquitinating enzymes (DUBs) superfamily. Among them, OTU Domain-Containing Ubiquitin Aldehyde-Binding Protein 1 (OTUB1) stands out as a critical member of the OTU deubiquitinating family, playing a pivotal role as a tumor regulator across various cancers. However, its specific involvement in BLCA (BLCA) and its clinical significance have remained ambiguous. This study aimed to elucidate the biofunctions of OTUB1 in BLCA and its implications for clinical prognosis. Our investigation revealed heightened OTUB1 expression in BLCA, correlating with unfavorable clinical outcomes. Through in vivo and in vitro experiments, we demonstrated that increased OTUB1 levels promote BLCA tumorigenesis and progression, along with conferring resistance to cisplatin treatment. Notably, we established a comprehensive network involving OTUB1, ß-catenin, necroptosis, and BLCA, delineating their regulatory interplay. Mechanistically, we uncovered that OTUB1 exerts its influence by deubiquitinating and stabilizing ß-catenin, leading to its nuclear translocation. Subsequently, nuclear ß-catenin enhances the transcriptional activity of c-myc and cyclin D1 while suppressing the expression of RIPK3 and MLKL, thereby fostering BLCA progression and cisplatin resistance. Importantly, our clinical data suggest that the OTUB1/ß-catenin/RIPK3/MLKL axis holds promise as a potential biomarker for BLCA.


Asunto(s)
Cisteína Endopeptidasas , Transducción de Señal , beta Catenina , Humanos , beta Catenina/metabolismo , Animales , Cisteína Endopeptidasas/metabolismo , Cisteína Endopeptidasas/genética , Ratones , Enzimas Desubicuitinizantes/metabolismo , Línea Celular Tumoral , Ratones Desnudos , Ubiquitinación , Cisplatino/farmacología , Cisplatino/uso terapéutico
3.
World Neurosurg ; 2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39216724

RESUMEN

OBJECTIVE: To evaluate the preliminary outcomes and clinical efficacy of a novel posterior biportal endoscopic technique in the treatment of CCDH. METHOD: A total of eleven patients with symptomatic CCDH who met the inclusion criteria underwent posterior biportal endoscopic discectomy between December 2021 and May 2023. The surgical procedure involved flavectomy, foraminotomy, pediculoplasty, and discectomy using 30° and 45° arthroscopes and specialised minimally invasive tools. Functional outcomes were assessed using the Japanese Orthopedic Association (JOA) scoring system, Neck Disability Index (NDI), and visual analogue scale (VAS) for axial neck pain. Clinical efficacy was evaluated at the final follow-up using the modified Macnab criteria. RESULTS: All eleven patients successfully underwent posterior biportal endoscopic discectomy with a mean operative time of 82.7±10.1 minutes and mean estimated blood loss of 31.8±9.8 ml. The mean hospital stay was 5.2±1.1 days, and the mean follow-up period was 13.8±2.4 months. Significant improvements were observed in NDI, JOA and VAS scores. Clinical efficacy was rated as excellent in three patients, good in six patients, and fair in two patients according to the modified Macnab criteria. No cases of cervical instability or kyphosis were observed during postoperative follow-up. CONCLUSION: The novel posterior biportal endoscopic technique demonstrated significant clinical efficacy and safety in treating CCDH, with marked improvements in clinical outcomes, rapid postoperative recovery, and a low incidence of complications.

4.
World Neurosurg ; 190: 284-288, 2024 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-38964458

RESUMEN

OBJECTIVE: We aimed to preliminarily explore the efficacy and safety of unilateral biportal endoscopy for the treatment of epidural cement leaks. We report a patient who underwent epidural cement leakage removal and achieved endoscopic spinal decompression. METHODS: A 67-year-old female patient underwent biportal endoscopic paraspinal decompression following percutaneous vertebroplasty for an osteoporotic fracture that resulted in neurologic impairment due to epidural cement leakage. A transforaminal biportal endoscopic surgery was performed to remove the leaked cement, and the left L1 and bilateral L2 nerves were decompressed. RESULTS: The patient's postoperative clinical course was uneventful. CONCLUSIONS: A paraspinal approach that avoids a posterior approach reduces the need to remove stabilizing facet bone, is truly minimally invasive and does not involve an instrumented fusion, maybe a helpful addition in the minimally invasive spine surgeon's armamentarium.

5.
Environ Sci Technol ; 58(24): 10839-10851, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38850558

RESUMEN

Wet-chemically recovering phosphorus (P) from sewage sludge incineration ash (SSIA) has already become a global initiative to address P deficit, but effectively isolating P from these accompanying metals (AMs) through adsorption in a SSIA-derived extract remains elusive. Here, we devised a hydrothermal stimulus-motivated thermodynamic and kinetic enhancement to gain anionic ethylenediaminetetraacetic acid (EDTA) molecular interfaces for AM enclosure to resolve this conundrum. A new dosage rule based on the EDTA coordination ratio with AMs was established for the first time. Upon hydrothermal extraction at 140 °C for 1 h, the P extraction efficiency reached 96.7% or higher for these obtained SSIA samples, and then exceptional P sequestration from these EDTA-chelated AMs was realized by the peculiar lanthanum (La)-based nanoadsorbent (having 188.86 mg P/g adsorbent at pH ∼ 3.0). Relevant theoretical calculations unraveled that these delocalized electrons of tetravalent EDTA molecules boosted the enclosure of liberated AMs, thereby entailing a substantially increased negative adsorption energy (-408.7 kcal/mol) of P in the form of H2PO4- through intruding lattice-edged carbonates to coordinate La with monodentate mononuclear over LaCO5(1 0 1). This work highlights the prospect of molecular adaptation of these common extractants in wet-chemical P recovery from various P-included wastes, further sustaining global P circularity.


Asunto(s)
Incineración , Fósforo , Aguas del Alcantarillado , Fósforo/química , Aguas del Alcantarillado/química , Adsorción , Electrones , Ácido Edético/química
6.
Opt Express ; 32(12): 21269-21280, 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38859485

RESUMEN

The projection of fringes plays an essential role in many applications, such as fringe projection profilometry and structured illumination microscopy. However, these capabilities are significantly constrained in environments affected by optical scattering. Although recent developments in wavefront shaping have effectively generated high-fidelity focal points and relatively simple structured images amidst scattering, the ability to project fringes that cover half of the projection area has not yet been achieved. To address this limitation, this study presents a fringe projector enabled by a neural network, capable of projecting fringes with variable periodicities and orientation angles through scattering media. We tested this projector on two types of scattering media: ground glass diffusers and multimode fibers. For these scattering media, the average Pearson's correlation coefficients between the projected fringes and their designed configurations are 86.9% and 79.7%, respectively. These results demonstrate the effectiveness of the proposed neural network enabled fringe projector. This advancement is expected to broaden the scope of fringe-based imaging techniques, making it feasible to employ them in conditions previously hindered by scattering effects.

7.
Acta Neurochir (Wien) ; 166(1): 231, 2024 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-38787501

RESUMEN

BACKGROUND: The technique of spinal decompression under endoscopy has been widely applied, but reports on endoscopic cervical fixation are rare. The unilateral biportal endoscopic (UBE) technique stands out for its lesser muscle intrusion and more flexible surgical approach. METHOD: We applied the UBE approach for cervical fixation and laminectomy. We achieved bilateral lateral mass screw fixation by making an auxiliary UBE portal combined with the Roy-Camille and Magerl techniques. CONCLUSIONS: Our successful implementation of cervical fixation using the UBE technique at the C3/4 level suggests its efficacy. This approach is a valuable and minimally invasive option for cervical fixation.


Asunto(s)
Vértebras Cervicales , Endoscopía , Humanos , Vértebras Cervicales/cirugía , Vértebras Cervicales/diagnóstico por imagen , Endoscopía/métodos , Endoscopía/instrumentación , Tornillos Óseos , Descompresión Quirúrgica/métodos , Descompresión Quirúrgica/instrumentación , Laminectomía/métodos , Laminectomía/instrumentación , Masculino , Persona de Mediana Edad , Femenino
8.
BMC Musculoskelet Disord ; 25(1): 367, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38730478

RESUMEN

BACKGROUND: The traditional surgical procedures for upper lumbar disc herniation (ULDH) usually lead to frequent complications. We aim to investigate the clinical efficacy of the unilateral biportal endoscopy (UBE) technique in treating upper lumbar disc herniation (ULDH). METHODS: From January 2020 to December 2021, the clinical data of 28 patients with ULDH treated with the UBE technique were collected and analyzed for surgery time under UBE, postsurgical drainage, postsurgical hospital stay, and complications. The clinical efficacy was evaluated according to the modified MacNab score, Oswestry disability index (ODI), and visual analogue scale (VAS) of low back pain and lower limb pain before the surgery; one week, one month, and three months after the surgery; and at the last follow-up. RESULTS: All patients underwent the UBE surgery successfully. The surgery time under UBE for non-fusion cases was 47.50 ± 11.84 min (monosegment) and 75.00 ± 20.66 min (two segments), while that for fusion cases was 77.50 ± 21.02 min. The postsurgical drainage for non-fusion cases was 25.00 ± 13.94 mL (monosegment) and 38.00 ± 11.83 mL (two segments), while that for fusion cases was 71.25 ± 31.72 mL. The postsurgical hospital stay was 8.28 ± 4.22 days. The follow-up time was 15.82 ± 4.54 months. The VAS score for each time period after the surgery was significantly lower (P < 0.05), while the ODI was significantly higher than that before the surgery (P < 0.05). According to the modified MacNab scoring standard, the ratio of excellent to good was 96.43% at the last follow-up. Two patients experienced transient numbness and pain in their lower limbs and no activity disorder after the surgery, and they recovered after conservative treatment. CONCLUSIONS: The clinical effect of UBE technique in treating ULDH was reliable. According to the needs of the disease, the interlaminar approach or paraspinal approach of the UBE technique was selected. This technique took into account the effect of treatment, achieved the purpose of minimal invasiveness, and did not require special instruments. Therefore, it has the potential for clinical application.


Asunto(s)
Endoscopía , Desplazamiento del Disco Intervertebral , Vértebras Lumbares , Humanos , Femenino , Masculino , Vértebras Lumbares/cirugía , Vértebras Lumbares/diagnóstico por imagen , Persona de Mediana Edad , Desplazamiento del Disco Intervertebral/cirugía , Desplazamiento del Disco Intervertebral/diagnóstico por imagen , Adulto , Endoscopía/métodos , Resultado del Tratamiento , Estudios Retrospectivos , Tempo Operativo , Dimensión del Dolor , Tiempo de Internación , Complicaciones Posoperatorias/etiología
9.
Cell Death Discov ; 10(1): 252, 2024 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-38789418

RESUMEN

Inactivated suppressor of mothers against decapentaplegic homolog (SMAD) 4 significantly affects cancer development in pancreatic ductal adenocarcinoma (PDAC). However, the contribution of smad4 loss to drug resistance in PDAC is largely undetermined. In the present study, we reported that the loss of SMAD4 endows PDAC cells the ability to drug resistance through upregulating histone lysine demethylase, Lysine-Specific Demethylase 5B (KDM5B, also known as JARID1B or PLU1). Upregulated KDM5B was found in PDAC, associated with poor prognosis and recurrence of PDAC patients. Upregulated KDM5B promotes PDAC tumor malignancy, i.e. cancer cells stemness and drug resistance in vitro and in vivo, while KDM5B knockout exerts opposite effects. Mechanistically, loss of Smad4-mediated upregulation of KDM5B promotes drug resistance through inhibiting the discs-large homolog 1 (DLG1), thereby facilitating nuclear translocation of YAP to induce de novo lipogenesis. Moreover, m6A demethylase FTO is involved in the upregulation of KDM5B by maintaining KDM5B mRNA stability. Collectively, the present study suggested FTO-mediated KDM5B stabilization in the context of loss of Smad4 activate DLG1/YAP1 pathway to promote tumorigenesis by reprogramming lipid accumulation in PDAC. Our study confirmed that the KDM5B-DLG1-YAP1 pathway axis plays a crucial role in the genesis and progression of PDAC, and KDM5B was expected to become a target for the treatment of PDAC. The schematic diagram of KDM5B-DLG1-YAP pathway axis in regulating drug resistance of PDAC to gemcitabine (GEM). In the context of SMAD4 loss PDAC cells, FTO-mediated stabilization and upregulation of KDM5B promotes drug resistance through directly targeting DLG1 to promote YAP1 translocation to nucleus to induce de novo lipogenesis (DNL).

10.
Heliyon ; 10(9): e30275, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38756568

RESUMEN

Organizational resilience is a key concept in the study of sustainable corporate growth and indicates an organization's capacity to recover from adversity. It plays a crucial role in responding to uncertain crises. In recent years, academic interest in organizational resilience has increasingly gained prominence. This research uses CiteSpace and VOSviewer to provide a thorough visual analysis of pertinent international literature based on 342 pieces of closely linked literature about organizational resilience. The findings suggest that organizational resilience research is currently experiencing a development phase. Within this field, there is a substantial number of scholars involved, with the most prolific among them including Aleksic Aleksandar, Prayag Girish, and Griffiths Andrew. The networks of collaboration among these authors, nevertheless, are very scattered. Co-citation network research reveals the academics with the biggest sway in the field. Organizational resilience, conservation of resources theory, crisis management, corporate social responsibility, and emergency management are identified as research hotspots within the keyword co-citation network. Furthermore, to determine which countries and regions are the most influential, this study has created a cooperative network among them. China, the United States, and England are the top three nations with articles published. Not only are the highly cited journals respected in the management sector, but they also showcase noteworthy research accomplishments within the field. The purpose of this study is to investigate potential avenues for future research and offer helpful sources for choosing research subjects and developing theoretical frameworks in this area. The analysis is highly valuable as a reference for research on organizational resilience in different settings in the future.

11.
RSC Adv ; 14(19): 13005-13015, 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38655467

RESUMEN

The ocean ecological environments are seriously affected by oil spilling and plastic-debris, preventing and significantly reducing marine pollution via using biocomposite production from natural fiber reinforcement is a more friendly way to deal with marine oil pollution. Herein, we upcycled coir-coconut into lignin and coconut shell into spherical TENG by a combination of dip-dry and chemical treatment and used the SiO2 nanoparticles together with cellulose nanofibrils to prepare serial sugar-templated, anisotropic and hybrid foams. The as-prepared lignin/SiO2 porous sponge (LSPS) with a hierarchical porous morphology and uniformly dispersed nanoparticles structure benefits from the advantages of biomass-based additives, which presents reversible large-strain deformation (50%) and high compressive strength (11.42 kpa). Notably, the LSPS was significantly more hydrophobic (WCA ≈150°) than pure silicone-based foams, and its selective absorbability can separate oil from water under continuous pumping. Meanwhile, the coconut husk was also upcycled as a spherical TENG shell by a combination of the nanofiber-enhanced polymer spherical oscillator (CESO), which possessed high triboelectric properties (Uoc = 272 V, Isc = 14.5 µA, Q = 70 nC) and was comparable to the plastic shell TENG at low frequency (1.6 Hz). The monolithic foam structure developed using this clean synthetic strategy holds considerable promise for new applications in sustainable petroleum contamination remediation.

13.
J Hazard Mater ; 471: 134349, 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38653140

RESUMEN

Concerns over worldwide plastic pollution have led to the development of biodegradable polyester materials with excellent physical and chemical properties through the copolymerization of poly(butylene oxalate) (PBOx). As a result, poly(butylene oxalate-co-terephthalate)s (PBOTs) with varying compositions, were prepared by incorporating aromatic units. Studies have indicated that PBOT-47 (with a 47% molar terephthalate), exhibits exceptional mechanical properties. With an elongation at break of 1160% and a tensile strength that remains above 30 MPa, similar to or even better than those of the commercial biodegradable plastic poly(butylene adipate-co-terephthalate) PBAT-47 (47% molar terephthalate). Moreover, the permeability coefficients of PBAT-47 for H2O, CO2 and O2 were 5.8, 50.6 and 5.6 times higher than that of PBOT-47, revealing the superior barrier properties of PBOT. Through experimental research and theoretical simulation, the mechanism of the copolymer hydrolysis was elucidated. The readily hydrolytic nature of the oxalate unit endows it with the capacity for rapid degradation, possessing the potential to be a short-term degradable material with physical properties similar to PBAT.

14.
Pharmacol Res ; 203: 107162, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38554788

RESUMEN

In American men, the incidence of prostate cancer (PC) is the highest among all types of cancer, making it the second leading cause of mortality associated with cancer. For advanced or metastatic PC, antiandrogen therapies are standard treatment options. The administration of these treatments unfortunately carries the potential risk of inducing neuroendocrine prostate cancer (NEPC). Neuroendocrine differentiation (NED) serves as a crucial indicator of prostate cancer development, encompassing various factors such as phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR), Yes-associated protein 1 (YAP1), AMP-activated protein kinase (AMPK), miRNA. The processes of autophagy and ferroptosis (an iron-dependent form of programmed cell death) play pivotal roles in the regulation of various types of cancers. Clinical trials and preclinical investigations have been conducted on many signaling pathways during the development of NEPC, with the deepening of research, autophagy and ferroptosis appear to be the potential target for regulating NEPC. Due to the dual nature of autophagy and ferroptosis in cancer, gaining a deeper understanding of the developmental programs associated with achieving autophagy and ferroptosis may enhance risk stratification and treatment efficacy for patients with NEPC.


Asunto(s)
Autofagia , Ferroptosis , Neoplasias de la Próstata , Humanos , Ferroptosis/efectos de los fármacos , Autofagia/efectos de los fármacos , Masculino , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/metabolismo , Animales , Transducción de Señal/efectos de los fármacos , Antineoplásicos/uso terapéutico , Antineoplásicos/farmacología , Tumores Neuroendocrinos/tratamiento farmacológico , Tumores Neuroendocrinos/patología , Tumores Neuroendocrinos/metabolismo
15.
Biomedicines ; 12(3)2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38540274

RESUMEN

The emergence of castration-resistant prostate cancer (CRPC) following androgen deprivation therapy (ADT) is associated with increased malignancy and limited treatment options. This study aims to investigate potential connections between immune cell infiltration and inflammatory cytokines with the YAP1/AR/PSA axis by exploring their interactions with autophagy. Our research reveals heightened levels of Yes-associated protein 1 (YAP1) expression in CRPC tissues compared with tissues from androgen-dependent prostate cancer (ADPC) and benign prostate hyperplasia (BPH). Additionally, a correlation was observed between YAP1 and PSA expressions in CRPC tissues, suggesting that YAP1 may exert a regulatory influence on PSA expression within CRPC. Enhanced YAP1 expression in C4-2 cells resulted in the upregulation of androgen receptor (AR) nuclear translocation and intracellular prostate-specific antigen (PSA) levels. Conversely, the suppression of YAP1 led to a decrease in PSA expression, suggesting that YAP1 may positively regulate the PSA in castration-resistant prostate cancer (CRPC) by facilitating AR nuclear import. The modulation of the autophagy activity exerts a significant impact on the expression levels of YAP1, the AR, and the PSA. Moreover, recent advancements in immunity and inflammation studies present promising avenues for potential therapies targeting prostate cancer (PC).

16.
Acta Neurochir (Wien) ; 166(1): 74, 2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38332369

RESUMEN

BACKGROUND: Endoscopically assisted screw fixation with lumbar interbody fusion is rarely performed. We succeeded in implanting the cortical bone trajectory (CBT) screws under the guidance of unilateral biportal endoscopy (UBE). METHOD: We attempted endoscopically assisted screw fixation in a patient with degenerative spondylolisthesis. Through a third portal, ipsilateral CBT screws were implanted without complications. CONCLUSIONS: We successfully performed unilateral biportal endoscopic lumbar interbody fusion (ULIF) with CBT and reversed CBT screws. Compared with percutaneous pedicle screw (PPS) placement, this procedure is a minimally invasive, endoscopic alternative that allows precise screw placement.


Asunto(s)
Tornillos Pediculares , Fusión Vertebral , Espondilolistesis , Humanos , Espondilolistesis/diagnóstico por imagen , Espondilolistesis/cirugía , Endoscopía , Hueso Cortical/diagnóstico por imagen , Hueso Cortical/cirugía , Huesos , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/cirugía , Fusión Vertebral/métodos , Resultado del Tratamiento
17.
J Immigr Minor Health ; 26(3): 527-538, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38334856

RESUMEN

We conducted an analysis to identify factors influencing the use of traditional complementary and alternative medicine (TCAM), with a particular emphasis on ethnic variations. Using the 2015 Asian American Quality of Life survey (N = 2,609), logistic regression analyses were performed, considering acculturation, health status, healthcare accessibility/utilization, and socio-demographic factors. Ethnicity, specifically being Chinese or Korean Americans, having chronic medical conditions, experiencing unmet healthcare needs, and having regular check-ups were significant predictors of TCAM use among Asian Americans as a whole. However, when we delved into sub-ethnic groups, different patterns were found. Among Vietnamese and Filipino Americans, having unmet healthcare needs emerged as the most prominent predictor of TCAM use. Furthermore, acculturation level and English proficiency were significant in predicting Vietnamese and Filipino Americans' TCAM use, with the direction varying by sub-ethnicity. Being old emerged as a predictor of TCAM use for Chinese, Indian, Korean, and 'other' Americans. Our findings underscore the importance of adopting an ethnically sensitive approach when addressing the healthcare needs of diverse Asian American populations.


Asunto(s)
Aculturación , Asiático , Terapias Complementarias , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Factores de Edad , Asiático/etnología , Asiático/estadística & datos numéricos , Terapias Complementarias/estadística & datos numéricos , Etnicidad/estadística & datos numéricos , Accesibilidad a los Servicios de Salud , Estado de Salud , Aceptación de la Atención de Salud/etnología , Filipinas/etnología , Calidad de Vida , Factores Sociodemográficos , Factores Socioeconómicos , Estados Unidos/epidemiología , Vietnam/etnología , China/etnología , República de Corea/etnología , India/etnología
18.
Sensors (Basel) ; 24(4)2024 Feb 09.
Artículo en Inglés | MEDLINE | ID: mdl-38400310

RESUMEN

The transmission spectrum of a narrow-band interference filter is crucial and highly influenced by factors such as the temperature and angle, thus requiring precise and online measurements. The traditional method of measuring the transmission spectrum of an interference filter involves the use of a spectrometer, but the accuracy of this method is limited. Moreover, placing a narrow-band interference filter inside a spectrometer hinders real-time online measurements. To address this issue, there is demand for high-precision online spectral testing methods. In response to this demand, we propose and experimentally validate a fine spectral characterization method for narrow-band interference filters. This method uses a narrow-linewidth tunable laser, achieving a spectral resolution in the MHz range for online testing. Two types of narrow-band interference filters were tested using the constructed laser spectroscopy experimental system, obtaining a transmission spectrum with a spectral resolution of 318 MHz. In comparison to spectrometer-based methods, our proposed method demonstrates higher spectral accuracy, enables online measurements, and provides more accurate measurements for special spectral interference filters. This approach has significant application value and promising development prospects.

19.
Nat Commun ; 15(1): 512, 2024 Jan 13.
Artículo en Inglés | MEDLINE | ID: mdl-38218949

RESUMEN

Tuning CO2 hydrogenation product distribution to obtain high-selectivity target products is of great significance. However, due to the imprecise regulation of chain propagation and hydrogenation reactions, the oriented synthesis of a single product is challenging. Herein, we report an approach to controlling multiple sites with graphene fence engineering that enables direct conversion of CO2/H2 mixtures into different types of hydrocarbons. Fe-Co active sites on the graphene fence surface present 50.1% light olefin selectivity, while the spatial Fe-Co nanoparticles separated by graphene fences achieve liquefied petroleum gas of 43.6%. With the assistance of graphene fences, iron carbides and metallic cobalt can efficiently regulate C-C coupling and olefin secondary hydrogenation reactions to achieve product-selective switching between light olefins and liquefied petroleum gas. Furthermore, it also creates a precedent for CO2 direct hydrogenation to liquefied petroleum gas via a Fischer-Tropsch pathway with the highest space-time yields compared to other reported composite catalysts.

20.
iScience ; 27(1): 108713, 2024 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-38226156

RESUMEN

The development of castration-resistant prostate cancer (CRPC) is driven by intricate genetic and epigenetic mechanisms. Traf2- and Nck-interacting kinase (TNIK) has been reported as a serine/threonine kinase associated with tumor cell proliferation or unfavorable cancer behavior. The microarray approach revealed a substantial upregulation of TNIK expression levels, enabling us to investigate the functional behaviors of the TNIK gene in CRPC. Specifically, we discovered that AR suppresses TNIK gene transcription in LNCaP and C4-2 cells by forming a complex with H3K27me3. Following the reduction of AR levels induced by androgen deprivation therapy (ADT), TNIK is recruited to activate EGFR signaling through phosphorylation in C4-2 cells, thereby promoting CRPC progression. Our findings unveil a regulatory role of AR as a repressor for TNIK while also highlighting how TNIK activates the EGFR pathway via phosphorylation to drive CRPC progression. Consequently, targeting TNIK may represent an appealing therapeutic strategy for CRPC.

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