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1.
Dysphagia ; 2024 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-39096333

RESUMO

This study aimed to develop the Dysphagia Handicap Index-Chinese Mandarin (DHI-CM) and to assess its reliability and validity. This prospective study was conducted in China with individuals who speak Mandarin. The DHI-CM was developed according to a five-stage process. 264 patients with oropharyngeal dysphagia (OD) and 187 healthy individuals completed the study. Reliability was assessed using Cronbach's α and test-retest reliability. Differences between healthy participants and patients with OD were analyzed for instrument validity. Convergent and concurrent validity were assessed using the Swallowing Quality of Life Questionnaire (SWAL-QoL) and Functional Oral Intake Scale (FOIS), respectively. The Content Validity Index (CVI) was used to assess content validity. Exploratory and Confirmatory Factor Analyses (EFA and CFA, respectively) were used to assess structural validity. The Cronbach's alpha was > 0.9 for the total score and every individual subscale. The Pearson and intraclass correlation coefficients were both > 0.8. The patients with OD showed significantly higher scores in the DHI-CM and its subscales than the healthy individuals. Significant correlations were found between most subscales of the DHI-CM and both the SWAL-QoL and FOIS. The CVI of the DHI-CM was 0.892 and ranged between 0.878 and 1.000 for the subscales. The EFA identified three components that explained 24.33%, 23.99%, and 22.73% of the variance, respectively. The scale showed good structural validity through CFA. Conclusions. The DHI-CM demonstrated good reliability and validity among Mandarin-speaking Chinese adults.

2.
Molecules ; 29(10)2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38792104

RESUMO

The effective capture and recovery of radioiodine species associated with nuclear fuel reprocessing is of significant importance in nuclear power plants. Porous materials have been proven to be one of the most effective adsorbents for the capture of radioiodine. In this work, we design and synthesize a series of conjugated microporous polymers (CMPs), namely, TPDA-TFPB CMP, TPDA-TATBA CMP, and TPDA-TECHO CMP, which are constructed based on a planar rectangular 4-connected organic monomer and three triangular 3-connected organic monomers, respectively. The resultant CMPs are characterized using various characterization techniques and used as effective adsorbents for iodine capture. Our experiments indicated that the CMPs exhibit excellent iodine adsorption capacities as high as 6.48, 6.25, and 6.37 g g-1 at 348 K and ambient pressure. The adsorption mechanism was further investigated and the strong chemical adsorption between the iodine and the imine/tertiary ammonia of the CMPs, 3D network structure with accessible hierarchical pores, uniform micromorphology, wide π-conjugated structure, and high-density Lewis-base sites synergistically contribute to their excellent iodine adsorption performance. Moreover, the CMPs demonstrated good recyclability. This work provides guidance for the construction of novel iodine adsorbent materials with high efficiency in the nuclear power field.

3.
Opt Lett ; 48(10): 2676-2679, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37186738

RESUMO

Mode-locked lasers with ultra-narrow spectral widths and durations of hundreds of picoseconds can be versatile light sources for a variety of newly emergent applications. However, less attention seems to be given to mode-locked lasers that generate narrow spectral bandwidths. We demonstrate a passively mode-locked erbium-doped fiber laser (EDFL) system that relies on a standard fiber Bragg grating (FBG) and the nonlinear polarization rotation (NPR) effect. This laser achieves the longest reported pulse width (to the best of our knowledge) of 143 ps based on NPR and an ultra-narrow spectral bandwidth of 0.017 nm (2.13 GHz) under Fourier transform-limited conditions. The average output power is 2.8 mW, and the single-pulse energy is 0.19 nJ at a pump power of 360 mW.

4.
Opt Express ; 30(17): 30684-30695, 2022 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-36242167

RESUMO

The coherent digital radio-over-fiber (DRoF) system is a promising candidate for future mobile fronthaul networks (MFNs) due to its high receiver sensitivity and excellent robustness against nonlinearities. However, conventional coherent receivers with complicated structure and heavy algorithms are too expensive and power-hungry for cost-sensitive MFN applications. In addition, currently deployed digital MFNs based on common public radio interface (CPRI) suffer from low spectral efficiency and high data rate. Towards these issues we propose a novel DRoF downlink scheme employing a simple self-coherent receiver. In baseband unit (BBU), the radio signal is converted to a digital bit stream by a band-pass delta-sigma modulator (BP-DSM), which can be simply recovered with the utilization of a band-pass filter at the receiver. In remote radio unit (RRU), an electro-absorption modulated laser (EML) acts as a low-cost coherent homodyne receiver in virtue of injection locking technique. In the experiment, the injection-locked operation of the DSM signal is successfully achieved, and two modified schemes are proposed for the DSM signal to increase the locking range with a tolerable sensitivity penalty. The experimental results demonstrate the superiority of our approach in two aspects: 1) the EML-based coherent receiver outperforms a PIN photodiode in terms of receiver sensitivity; 2) compared to the analog RoF system, a 5-dB improvement in loss budget is obtained when DSM is employed with the aid of a simple equalizer.

5.
Analyst ; 147(7): 1499-1508, 2022 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-35290422

RESUMO

Efficient separation and enrichment is a crucial step in the analysis of Se(IV) and Se(VI). In the present study, for the first time, online monolith-based magnetic field-assisted in-tube solid phase microextraction (MFA/IT-SPME) was applied to capture inorganic selenium species in water samples. To this aim, porous monoliths mixed with magnetic nanoparticles were synthesized in a silica capillary and employed as a microextraction column (MEC) for MFA/IT-SPME. After that, a magnetic coil utilized to induce variable magnetic fields in adsorption and desorption steps was entwined around the MEC. Se(IV) was coordinated with o-phenylenediamine to form a coordination compound that was infused onto the MEC to be captured. Results evidenced that application of magnetic field during the extraction procedure assisted the capture of the Se(IV)-OPA complex, with an enhancement in the extraction efficiency from 83% to 97%. Under the optimized conditions, MFA/IT-SPME was online combined with HPLC equipped with a diode array detector (DAD) to perform quantification of Se(IV) and Se(VI) in environmental water samples. Total inorganic Se was quantified after pre-reduction of Se(VI) to Se(IV) prior to applying the established approach, and a subtraction method was adopted to calculate the Se(VI) and Se(IV) contents. The limit of detection for Se(IV) was as low as 0.012 µg L-1. The reliability of the suggested method was investigated by assaying Se(IV) and Se(VI) species in real-life water samples with satisfactory recoveries (81.1%-116%) and repeatability (RSDs below 9%).


Assuntos
Selênio , Poluentes Químicos da Água , Campos Magnéticos , Reprodutibilidade dos Testes , Selênio/química , Microextração em Fase Sólida/métodos , Água/química , Poluentes Químicos da Água/análise
6.
J Sep Sci ; 45(9): 1560-1569, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35199936

RESUMO

An efficient multiple fibers solid-phase microextraction method based on porous monolith was established for Se(IV) and Se(VI) analysis. Poly(4-vinylphenylboronic acid/styrene-co-ethylene dimethacrylate/divinylbenzene) monolith was fabricated and employed as the extraction phase for efficient entrapment of Se(IV) complexed with o-phenylenediamine, followed by elution with a methanol/formic acid (99/1.0, v/v) mixture and quantification by high-performance liquid chromatography with diode array detector. The Se(VI) species was measured by the difference between total inorganic Se and Se(IV) after pre-reduction. Different characterization techniques were employed to inspect the structure and morphology of prepared adsorbent. A series of key extraction factors were optimized so as to achieve the expected extraction performance. Under the optimized separation and capture parameters, the linear range and limit of detection for Se(IV) in water sample were 0.050-200 and 0.013 µg/L, respectively. For beer sample, the corresponding values were 0.010-300 and 0.032 µg/L. The developed microextraction approach was successfully utilized to detect trace Se(IV) and Se(VI) in environmental water and beer samples with satisfactory fortified recovery and repeatability. Results well reveal the attractive merits of the established method in the analysis of Se species, including simple preparation of adsorbent, convenient extraction procedure, good sensitivity, high cost-effectiveness, and eco-friendliness.


Assuntos
Poluentes Químicos da Água , Água , Cerveja/análise , Cromatografia Líquida de Alta Pressão , Microextração em Fase Sólida/métodos , Água/química , Poluentes Químicos da Água/análise
7.
J Sep Sci ; 44(23): 4284-4294, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34598310

RESUMO

In this study, a new adsorbent based on monolith/aminated carbon nanotubes composite was facilely prepared and employed as the extraction phase of multiple monolithic fibers solid-phase microextraction for the capture of phenoxycarboxylic acids herbicides. The adsorbent was fabricated by mingling aminated carbon nanotubes in the poly (allylthiourea-co-ethylene glycol dimethacrylate) monolith. Various techniques were employed to characterize the morphology, structure, and pore size of the prepared adsorbent. The proposed microextraction method displayed satisfactory capture performance towards studied analytes through multi-interactions such as hydrogen-bonding, hydrophobic and π-π interactions. Under the optimized conditions, a sensitive and reliable method to quantify trace analytes in water and soil samples was developed. The limits of detection were in the ranges of 0.13-0.25 µg/L and 0.20-0.61 µg/kg for water and soil samples, respectively. The practicality of the introduced method was demonstrated by applying it to monitor the contents of studied analytes in environmental water and soil samples. Satisfactory fortified recoveries (76.4-119%) and reproducibility were obtained. The achieved results well demonstrated that the suggested microextraction technique can efficiently extract phenoxycarboxylic acids and the developed method exhibits a promising potential for reliable and sensitive quantification of trace analytes in complex samples.

11.
Int J Mol Sci ; 20(13)2019 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-31288389

RESUMO

Nanobody against V-set and Ig domain-containing 4 (Vsig4) on tissue macrophages, such as synovial macrophages, could visualize joint inflammation in multiple experimental arthritis models via single-photon emission computed tomography imaging. Here, we further addressed the specificity and assessed the potential for arthritis monitoring using near-infrared fluorescence (NIRF) Cy7-labeled Vsig4 nanobody (Cy7-Nb119). In vivo NIRF-imaging of collagen-induced arthritis (CIA) was performed using Cy7-Nb119. Signals obtained with Cy7-Nb119 or isotope control Cy7-NbBCII10 were compared in joints of naive mice versus CIA mice. In addition, pathological microscopy and fluorescence microscopy were used to validate the arthritis development in CIA. Cy7-Nb119 accumulated in inflamed joints of CIA mice, but not the naive mice. Development of symptoms in CIA was reflected in increased joint accumulation of Cy7-Nb119, which correlated with the conventional measurements of disease. Vsig4 is co-expressed with F4/80, indicating targeting of the increasing number of synovial macrophages associated with the severity of inflammation by the Vsig4 nanobody. NIRF imaging with Cy7-Nb119 allows specific assessment of inflammation in experimental arthritis and provides complementary information to clinical scoring for quantitative, non-invasive and economical monitoring of the pathological process. Nanobody labelled with fluorescence can also be used for ex vivo validation experiments using flow cytometry and fluorescence microscopy.


Assuntos
Artrite Experimental/diagnóstico , Artrite Experimental/metabolismo , Macrófagos/metabolismo , Imagem Molecular/métodos , Receptores de Complemento , Anticorpos de Domínio Único , Membrana Sinovial/metabolismo , Membrana Sinovial/patologia , Animais , Imunofluorescência , Corantes Fluorescentes/química , Imuno-Histoquímica , Macrófagos/imunologia , Masculino , Camundongos , Microscopia de Fluorescência , Modelos Moleculares , Estrutura Molecular , Receptores de Complemento/imunologia , Anticorpos de Domínio Único/química , Anticorpos de Domínio Único/imunologia , Espectroscopia de Luz Próxima ao Infravermelho , Coloração e Rotulagem , Membrana Sinovial/imunologia
12.
Int J Dermatol ; 63(8): 1041-1047, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38366678

RESUMO

BACKGROUND: Plaque psoriasis is relatively straightforward to identify. When diagnostic concerns arise in atypical cases, a biopsy is needed. It is widely accepted that the Munro microabscess and the spongiform pustule of Kogoj are diagnostic pathological features. However, the diagnostic dilemma is likely to arise in cases without these specific pathological changes and typical clinical features. This study aimed to investigate clinical and pathological clues in distinguishing atypical plaque psoriasis from its mimics. METHODS: We evaluated the clinicopathological features of 20 cases of atypical plaque psoriasis and 40 cases of psoriasis mimics as controls including pityriasis rosea (n = 10), pityriasis lichenoides chronica (n = 8), and subacute dermatitis (n = 22). RESULTS: A retrospective analysis of the clinicopathological characteristics of patients with atypical plaque psoriasis and controls was performed. Pathologically, there were significant differences between the two groups in the types of parakeratosis (P = 0.046), epidermal capture of extravasated erythrocytes (P = 0.011), focal basal liquefied degeneration (P = 0.017), types of inflammatory cells (P = 0.000), and depth of inflammation (P = 0.000). Clinically, we found the presence of scales and crusts was significantly different between the two groups. CONCLUSION: This study offers insight into the clinicopathological features of atypical plaque psoriasis. These differential diagnostic features, compared with its mimics, are proposed to assist the clinician in the diagnosis and treatment of atypical plaque psoriasis.


Assuntos
Paraceratose , Pitiríase Liquenoide , Pitiríase Rósea , Psoríase , Humanos , Psoríase/patologia , Psoríase/diagnóstico , Masculino , Feminino , Estudos Retrospectivos , Adulto , Pessoa de Meia-Idade , Diagnóstico Diferencial , Pitiríase Liquenoide/patologia , Pitiríase Liquenoide/diagnóstico , Paraceratose/patologia , Paraceratose/diagnóstico , Adulto Jovem , Pitiríase Rósea/patologia , Pitiríase Rósea/diagnóstico , Idoso , Biópsia , Estudos de Casos e Controles , Dermatite/patologia , Dermatite/diagnóstico , Pele/patologia , Adolescente , Epiderme/patologia , Eritrócitos/patologia
13.
Int Immunopharmacol ; 131: 111895, 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-38508096

RESUMO

BACKGROUND: Kimura's disease (KD) is a rare chronic inflammatory disorder characterised by painless, deep subcutaneous nodules that most commonly affect the head and neck region of Asian men. Due to high relapse rates and side effects of current therapies, the treatment of KD is challenging. OBJECTIVES: To present a case of KD that was successfully treated with dupilumab and to review the literature with a focus on the evaluation of the efficacy and safety of dupilumab in KD. METHODS: A review of the available literature on the treatment of KD with dupilumab was performed and a new case was analyzed. To gain further insight into this promising therapy, literature review of 8 articles published between January 2016 and January 2024 were included in this study using the PubMed database. RESULTS: Our patient with KD was successfully treated with dupilumab 300 mg every 2 weeks, at an initial dose of 600 mg. The treatment was well tolerated. In the past, only nine patients with KD treated with dupilumab have been reported and reviewed, half of whom had failed prior treatment. All patients achieved significant efficacy after treatment with dupilumab, with no relapses during an average follow-up of 10.4 months (ranged from 4 to 16 months). CONCLUSION: Dupilumab may be an emerging alternative treatment option for KD patients. Larger randomized controlled studies are needed to confirm these findings.


Assuntos
Anticorpos Monoclonais Humanizados , Doença de Kimura , Humanos , Masculino , Anticorpos Monoclonais Humanizados/efeitos adversos , Anticorpos Monoclonais Humanizados/uso terapêutico
14.
Am J Trop Med Hyg ; 110(4): 805-808, 2024 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-38471180

RESUMO

Tuberculous gumma (TG) is a rare type of cutaneous tuberculosis thought to occur as a result of the hematogenous spread of Mycobacterium tuberculosis, which is more common in immunosuppressed individuals. An 8-year-old boy presented with a 2-month history of multiple indolent enlarging ulcerated nodules on his left upper extremity. He had a past medical history of bacille Calmette-Guerin vaccine induced lupus vulgaris. Skin biopsy of the nodules showed granulomas and neutrophil-dominated purulent inflammation. Ziehl-Neelsen staining was negative, and the cultures were positive for M. tuberculosis. Furthermore, the M. tuberculosis complex was identified using metagenomic next-generation sequencing. Standard antitubercular therapy was started at full doses, and the skin lesions had significantly improved 3 months later. Here we review the literature since 2000 and describe the clinical and pathological features of TG.


Assuntos
Lúpus Vulgar , Mycobacterium tuberculosis , Tuberculose Cutânea , Masculino , Humanos , Criança , Tuberculose Cutânea/diagnóstico , Tuberculose Cutânea/tratamento farmacológico , Lúpus Vulgar/patologia , Antituberculosos/uso terapêutico , Pele/patologia
15.
Appl Immunohistochem Mol Morphol ; 32(4): 169-175, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38478384

RESUMO

OBJECTIVE: To assess the expression of early growth response 3 (EGR3) in normal skin and different types of skin tumors: cutaneous squamous cell carcinoma (cSCC), basal cell carcinoma (BCC), melanoma (MM), and cutaneous adnexal tumors containing sebaceous carcinoma (SC), trichoepithelioma (TE) and clear cell hidradenoma (CCH). BACKGROUND: EGR3, expressed in multiple organs, including skin, plays an important role in cell differentiation and tumor growth. Previous studies have shown that EGR3 suppresses tumor growth and is downregulated in various malignancies. However, its distribution in normal skin and its expression especially in skin tumors have not been studied. MATERIALS AND METHODS: Samples of normal cases (n = 4), cSCC (n = 12), BCC (n = 12), MM (n = 12), SC (n = 4), TE (n = 4), and CCH (n = 4) were collected from patients treated in our department between 2018 and 2023. Immunohistochemistry was used to investigate the expression of EGR3. The results were analyzed with the description of the staining pattern and the histochemical score. RESULTS: Immunohistochemical staining showed that EGR3 was uniquely expressed in normal skin in the granular layer and upper part of the stratum spinosum, as well as in sebaceous glands and hair follicles, but not in sweat glands. In skin cancers, BCC, SC, and TE showed positive EGR3 staining, whereas cSCC, MM, and CCH were negative. CONCLUSIONS: EGR3 has a specific expression pattern in normal skin and in skin tumors, which is important for the differential diagnosis of skin tumors, in particular for cSCC and sebaceous gland carcinoma.


Assuntos
Carcinoma Basocelular , Carcinoma de Células Escamosas , Melanoma , Neoplasia de Células Basais , Neoplasias Cutâneas , Humanos , Carcinoma Basocelular/metabolismo , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/metabolismo , Melanoma/metabolismo , Pele/patologia , Neoplasias Cutâneas/patologia
16.
Nutrition ; 126: 112531, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39111097

RESUMO

BACKGROUND: The presence of frailty decreases the overall survival of cancer patients. An accurate and operational diagnostic method is needed to help clinicians choose the most appropriate treatment to improve patient outcomes. METHODS: Data were collected from 10 649 cancer patients who were prospectively enrolled in the Investigation on Nutritional Status and its Clinical Outcomes of Common Cancers (INSCOC) project in China from July 2013 to August 2022. The training cohort and validation cohort were randomly divided at a ratio of 7:3. The multivariable logistic regression analysis, multivariate Cox regression analyses, and the least absolute shrinkage and selection operator (LASSO) method were used to develop the nomogram. The concordance index and calibration curve were used to assess the diagnostic utility of the nomogram model. RESULTS: The 10 risk factors associated with frailty in cancer patients were age, AJCC stage, liver cancer, hemoglobin, radiotherapy, surgery, hand grip strength (HGS), calf circumference (CC), PG-SGA score and QOL from the QLQ-C30. The diagnostic nomogram model achieved a good C index of 0.847 (95% CI, 0.832-0.862, P < 0.001) in the training cohort and 0.853 (95% CI, 0.83-0.876, P < 0.001) in the validation cohort. The prediction nomogram showed 1-, 3-, and 5-year mortality C indices in the training cohort of 0.708 (95% CI, 0.686-0.731), 0.655 (95% CI, 0.627-0.683), and 0.623 (95% CI, 0.568-0.678). The 1-, 3-, and 5-year C indices in the validation cohort were similarly 0.743 (95% CI, 0.711-0.777), 0.680 (95% CI, 0.639-0.722), and 0.629 (95% CI, 0.558-0.700). In addition, the calibration curves and decision curve analysis (DCA) were well-fitted for both the diagnostic model and prediction model. CONCLUSIONS: The nomogram model provides an accurate method to diagnose frailty in cancer patients. Using this model could lead to the selection of more appropriate therapy and a better prognosis for cancer patients.


Assuntos
Fragilidade , Neoplasias , Nomogramas , Estado Nutricional , Humanos , Fragilidade/diagnóstico , Feminino , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/mortalidade , Idoso , China/epidemiologia , Fatores de Risco , Estudos Prospectivos , Força da Mão , Reprodutibilidade dos Testes , Adulto , Estudos de Coortes
17.
Chin J Integr Med ; 2024 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-39305459

RESUMO

OBJECTIVE: To explore the effect of acupuncture therapy on dysphagia in patients with Parkinson's disease. METHODS: This randomized controlled study lasted 42 days and included 112 patients with Parkinson's disease and dysphagia. Participants were randomly assigned to the experimental and control groups (56 cases each group) using the completely randomized design, all under routine treatment. The experimental group was given acupuncture therapy. The primary outcome was Penetration-Aspiration Scale (PAS). The secondary outcomes were (1) Standardized Swallowing Assessment (SSA), and (2) nutritional status including body mass index (BMI), serum albumin, prealbumin, and hemoglobin. Adverse events were recorded as safety indicators. RESULTS: One participant quitted the study midway. There were no significant differences in baseline assessment (P>0.05). After treatment, both groups showed significant improvement in PAS, SSA and nutritional status except for BMI of the control group. There were significant differences between the two groups in the PAS for both paste and liquid, SSA (25.18±8.25 vs. 20.84±6.92), BMI (19.97±3.34 kg/m2vs. 21.26 ±2.38 kg/m2), serum albumin (35.16 ±5.29 g/L vs. 37.24 ±3.98 g/L), prealbumin (248.33 ±27.72 mg/L vs. 261.39 ±22.10 mg/L), hemoglobin (119.09±12.53 g/L vs. 126.67±13.97 g/L) (P<0.05). There were no severe adverse events during the study. CONCLUSION: The combination of routine treatment and acupuncture therapy can better improve dysphagia and nutritional status in patients with Parkinson's disease, than routine treatment solely. (registration No. CLINICALTRIAL: gov NCT06199323).

18.
Int J Biol Macromol ; 278(Pt 2): 134754, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39151848

RESUMO

The development of photoresponsive shape memory materials based on the photothermal conversion properties of lignin and the low activation energy of the dynamic covalent borate bond is of great importance. In this paper, a kind of lignin-based vitrimer polymer (LBP) containing dynamic boronic ester bonds was prepared by a "sulfhydryl-epoxy" click reaction and etherification reaction. The results show that the rigid segment EP-EL (lignin-based epoxy resin) and BDB (2,2'-(1,4-phenylene)-bis-[4-mercapto-1,3,2-dioxaneborane]) with benzene ring structure can impart tensile strength (20.8 MPa) to the LBP, while the flexible segment PEG imparts good elongation at break (15 %). The dynamic binding and dissociation exchange mechanism of the boronic ester bonds enables LBP to exhibit thermal remodelling properties (up to 36.2 %) and water-assisted self-healing properties at room temperature (up to 49.0 %). In addition, LBP exhibits excellent thermal and light-responsive shape memory properties due to its own photothermal conversion performance (photothermal conversion efficiency up to 18.2 %) and the dynamic boronic ester bond thermal activation bond exchange mechanism. The insulating properties of LBP make it suitable for use in high temperature protection circuit devices and light-responsive circuit devices. This study provides new insights into the design and application of Vitrimer and photoresponsive shape memory polymers, and also offers a new avenue for high-value utilization of lignin.


Assuntos
Ésteres , Lignina , Lignina/química , Ésteres/química , Boratos/química , Temperatura , Polímeros/química , Resistência à Tração , Luz
19.
J Am Med Dir Assoc ; 25(12): 105297, 2024 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-39393784

RESUMO

OBJECTIVES: Oropharyngeal dysphagia (OD) in community-dwelling older adults continues to be a challenge due to its insidious onset. This study developed a simple swallowing training program (SSTP) to address these issues and conducted a randomized controlled trial to explore its effect on swallowing function and quality of life. DESIGN: Two-arm randomized controlled trial. SETTING: AND PARTICIPANTS: A total of 248 community-dwelling older adults with OD from were included in 2024 and randomly divided into intervention and control groups. METHODS: The SSTP was developed through expert consultation. A total of 248 community-dwelling older adults with OD were included in 2024 and randomly divided into intervention and control groups. The intervention group underwent the SSTP twice daily for 21 days, with weekends off, and the control group participants did light physical activities by themselves. The primary outcome was the Gugging Swallowing Screen (GUSS), and the secondary outcomes were the Eating Assessment Tool-10 (EAT-10), Swallowing Quality of Life questionnaire (SWAL-QoL), maximum tongue pressure, masticatory ability, bite force, and meal duration. Assessments were conducted on days 1 and 21, while meal duration was assessed every 3 days for lunch. RESULTS: Twenty-seven participants withdrew halfway. There were no significant differences in baseline assessments (P > .05). There were significant between-group and interactive effects in the GUSS [(19.07 ± 1.38) vs (17.28 ± 2.17), Fbetween-group = 6.893, Pbetween-group = .009, Finteractive = 59.504, Pinteractive<.001], EAT-10 {[4.00 (3.00, 5.00)] vs [9.00 (7.00, 10.00)], zbetween-group = -3.502, Pbetween-group<.001; zinteractive = -6.252, Pinteractive<.001}, SWAL-QoL {[166.00 (163.00, 171.50)] vs [154.00 (150.00, 158.00)], zbetween-group = 2.681, Pbetween-group = .007; zinteractive = 5.475, Pinteractive<.001}, maximum tongue pressure {[33.10 (26.48, 36.86)] vs [28.85 (19.21, 35.77)], zbetween-group = 3.377, Pbetween-group = .001; zinteractive = -6.208, Pinteractive<.001}, masticatory ability {[176.92 (133.10, 212.91) vs [163.33 (116.66, 189.32)], zbetween-group = 4.801, Pbetween-group<.001; zinteractive = 6.979, Pinteractive<.001}. Between-group, time, and interactive effects were significant in the meal duration [(23.39 ± 4.32) vs (27.64 ± 5.63), Fbetween-group = 8.692, Pbetween-group = .004, Ftime = 138.683, Ptime< 0.001, Pinteractive = 73.196, Pinteractive<.001]. CONCLUSIONS AND IMPLICATIONS: The SSTP can effectively improve early OD and swallowing-related quality of life in community-dwelling older adults.

20.
Clin Nutr ; 43(10): 2327-2335, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39232261

RESUMO

BACKGROUND & AIMS: Malnutrition is prevalent among hospitalised patients, and increases the morbidity, mortality, and medical costs; yet nutritional assessments on admission are not routine. This study assessed the clinical and economic benefits of using an artificial intelligence (AI)-based rapid nutritional diagnostic system for routine nutritional screening of hospitalised patients. METHODS: A nationwide multicentre randomised controlled trial was conducted at 11 centres in 10 provinces. Hospitalised patients were randomised to either receive an assessment using an AI-based rapid nutritional diagnostic system as part of routine care (experimental group), or not (control group). The overall medical resource costs were calculated for each participant and a decision-tree was generated based on an intention-to-treat analysis to analyse the cost-effectiveness of various treatment modalities. Subgroup analyses were performed according to clinical characteristics and a probabilistic sensitivity analysis was performed to evaluate the influence of parameter variations on the incremental cost-effectiveness ratio (ICER). RESULTS: In total, 5763 patients participated in the study, 2830 in the experimental arm and 2933 in the control arm. The experimental arm had a significantly higher cure rate than the control arm (23.24% versus 20.18%; p = 0.005). The experimental arm incurred an incremental cost of 276.52 CNY, leading to an additional 3.06 cures, yielding an ICER of 90.37 CNY. Sensitivity analysis revealed that the decision-tree model was relatively stable. CONCLUSION: The integration of the AI-based rapid nutritional diagnostic system into routine inpatient care substantially enhanced the cure rate among hospitalised patients and was cost-effective. REGISTRATION: NCT04776070 (https://clinicaltrials.gov/study/NCT04776070).


Assuntos
Inteligência Artificial , Análise Custo-Benefício , Hospitalização , Desnutrição , Avaliação Nutricional , Humanos , Masculino , Feminino , Inteligência Artificial/economia , Idoso , Pessoa de Meia-Idade , Desnutrição/diagnóstico , Desnutrição/economia , Hospitalização/economia , Estado Nutricional , Idoso de 80 Anos ou mais , Adulto
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