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1.
Front Public Health ; 12: 1451101, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39363984

RESUMEN

Purpose: Aimed to assess the impact of wearable device-based aerobic exercise on the physical and mental well-being of women with breast cancer (BC) undergoing chemotherapy. Methods: Forty adult women with BC who underwent anthracycline-based chemotherapy were randomly allocated to the exercise group (n = 21) or the control group (n = 19). Both groups received standard health education and oncology care. In addition, the exercise group wore wearable devices to engage in moderate to high-intensity (50-90% HRmax) aerobic exercise during chemotherapy, while the control group did not carry out exercise intervention. Health-related physical fitness level, physical activity energy expenditure (PAEE), anxiety and depression scores, sleep quality, cancer-related fatigue, and overall quality of life (QoL), were assessed both before (prior to the first chemotherapy session) and after (prior to the fifth chemotherapy session) the exercise intervention. Exercise-related adverse events, exercise compliance, number and severity of gastrointestinal reactions and myelosuppression occurred were recorded during the exercise intervention. Results: After the intervention, compared to the control group, the exercise group (1) had significantly higher relative VO2peak (p = 0.003) and handgrip strength (p < 0.001); (2) had significantly higher PAEE (p < 0.001); (3) had a significantly lower scores in anxiety (p = 0.007), depression (p = 0.028), sleep quality in domains of subjective sleep quality (p = 0.010), sleep disturbances (p = 0.004), daytime dysfunction (p = 0.007), cancer-related fatigue in domains of physical (p < 0.001) and affective (p < 0.001); and (4) had a significantly lower scores in QoL in domains of physical well-being (p < 0.001) and emotional well-being (p = 0.019), while a significantly higher scores in functional well-being (p < 0.001). Patients in the exercise group experienced less severe gastrointestinal reactions (p = 0.028) and myelosuppressive symptoms (p < 0.001) than that in the control group. Patients in the exercise group had no serious exercise-related adverse events, with a mean exercise adherence of 81.8%. Conclusion: Wearable device-based aerobic exercise during chemotherapy can be an effective adjunctive therapy to improve physical and mental health in BC patients. Clinical trial registration: https://www.chictr.org.cn/showproj.html?proj=200247, Identifier: ChiCTR2300073667.


Asunto(s)
Antraciclinas , Neoplasias de la Mama , Ejercicio Físico , Salud Mental , Calidad de Vida , Dispositivos Electrónicos Vestibles , Humanos , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/terapia , Persona de Mediana Edad , Antraciclinas/efectos adversos , Antraciclinas/uso terapéutico , Adulto , Terapia por Ejercicio , Fatiga/terapia , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Aptitud Física
2.
Heliyon ; 10(19): e38489, 2024 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-39403494

RESUMEN

Non-small cell lung cancer (NSCLC), which accounts for up to 85 % of lung cancer cases, significantly impacts the health of individuals worldwide. While targeted therapy has played a crucial role, the emergence of EGFR resistance and adverse reactions has made it imperative to explore new medications. Natural products derived from plants became an important source of anti-tumor drugs. In this study, nine known compounds, including seven alkaloids (1-7) and two styryllactones (8 and 9) were isolated from twigs and leaves of Goniothalamus yunnanensis. Their structures were elucidated by their NMR spectroscopic data. Among them, griffithazanone A (1) showed the strongest inhibitory activity with the IC50 value of 6.775 µM. Our findings revealed that griffithazanone A treatment induced cytotoxicity, apoptosis, and ROS generation in A549 cells in a dose-dependent manner. It regulates the expression of apoptosis-related proteins Bax, Bcl-2, and cleaved-caspase3 both in vitro and in vivo. Further investigation demonstrated that griffithazanone A regulated the proteins involved in the ASK1/JNK/p38 and BAD/Bcl-2 pathways in A549 cells by targeting PIM1. Moreover, griffithazanone A treatment enhanced the efficacy of gefitinib and osimertinib and reversed osimertinib resistance. Overall, our study highlights the potential of griffithazanone A in inhibiting the progression of NSCLC by targeting PIM1 and reversing resistance to EGFR targeted drugs.

3.
Mol Neurobiol ; 2024 Oct 25.
Artículo en Inglés | MEDLINE | ID: mdl-39453517

RESUMEN

Prion diseases are fatal neurodegenerative disorders characterized by neuron damage and loss. Growth-associated protein 43 (GAP43) functions in neuronal plasticity and synaptic function, but its role in prion diseases is not fully elucidated. In this study, we investigated the changes of GAP43 in the central nerve system (CNS) of several prion-infected rodent models and explored the potential relationship of GAP43 with PrPSc deposit and neuron loss using various methods. We found that GAP43 levels were significantly decreased in the brain tissues of scrapie-infected rodent models at the terminal stage of the disease. Immunohistochemical analysis showed that GAP43 colocalized with NeuN-positive cells morphologically, indicating the presence of GAP43 in mature neurons. On contrary, the levels of GAP43 and p-GAP43 increased in a prion-infected cell line SMB-S15 in vitro, accompanying with the increase of intracellular calcium. Stimulation of lipopolysaccharide (LPS) upregulated while removal of PrPSc propagation downregulated the level of GAP43 in SMB-S15 cells. Morphological colocalization and molecular interaction between GAP43 and PrPSc have been addressed in the brains of prion-infected rodents and prion-infected cell line. Histological assays of the serial sections of the whole brains of prion-infected mice proposed that the reduced GAP43 level correlated with large amount of PrPSc deposits and notable neuron damage and loss showing cell crumpled and nuclear pyknosis. The impairment of GAP43 signaling and disturbance of calcium homeostasis by aberrance of brain GAP43/p-GAP43 not only reflect but also likely contribute to the pathology of severe neuron loss at the end of prion disease.

4.
Front Neurol ; 15: 1459555, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39445190

RESUMEN

Background: Myasthenia Gravis (MG) is an autoimmune disease that causes muscle weakness in 80% of patients, most of whom test positive for anti-acetylcholine receptor (AChR) antibodies (AChR-Abs). Predicting and improving treatment outcomes are necessary due to varying responses, ranging from complete relief to minimal improvement. Objective: Our study aims to develop and validate an interpretable machine learning (ML) model that integrates systemic inflammation indices with traditional clinical indicators. The goal is to predict the short-term prognosis (after 6 months of treatment) of AChR-Ab+ generalized myasthenia gravis (GMG) patients to guide personalized treatment strategies. Methods: We performed a retrospective analysis on 202 AChR-Ab+ GMG patients, dividing them into training and external validation cohorts. The primary outcome of this study was the Myasthenia Gravis Foundation of America (MGFA) post-intervention status assessed after 6 months of treatment initiation. Prognoses were classified as "unchanged or worse" for a poor outcome and "improved or better" for a good outcome. Accordingly, patients were categorized into "good outcome" or "poor outcome" groups. In the training cohort, we developed and internally validated various ML models using systemic inflammation indices, clinical indicators, or a combination of both. We then carried out external validation with the designated cohort. Additionally, we assessed the feature importance of our most effective model using the Shapley Additive Explanations (SHAP) method. Results: In our study of 202 patients, 28.7% (58 individuals) experienced poor outcomes after 6 months of standard therapy. We identified 11 significant predictors, encompassing both systemic inflammation indexes and clinical metrics. The extreme gradient boosting (XGBoost) model demonstrated the best performance, achieving an area under the receiver operating characteristic (ROC) curve (AUC) of 0.944. This was higher than that achieved by logistic regression (Logit) (AUC: 0.882), random forest (RF) (AUC: 0.917), support vector machines (SVM) (AUC: 0.872). Further refinement through SHAP analysis highlighted five critical determinants-two clinical indicators and three inflammation indexes-as crucial for assessing short-term prognosis in AChR-Ab+ GMG patients. Conclusion: Our analysis confirms that the XGBoost model, integrating clinical indicators with systemic inflammation indexes, effectively predicts short-term prognosis in AChR-Ab+ GMG patients. This approach enhances clinical decision-making and improves patient outcomes.

5.
Anal Methods ; 2024 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-39311407

RESUMEN

Although enrofloxacin (ENR) is a widely used broad-spectrum antibiotic in veterinary medicine, its residues in animals can pose a risk to human health. Thus, we developed a new method for detecting ENR based on aptamers and AuNPs. In the absence of ENR, the aptamers attached to the surface of the AuNPs via electrostatic interactions to protect the AuNPs from NaCl, and the solution remained red. Conversely, the aptamer bonded with ENR, leading the aptamer to detach from the AuNP surface, and the color of the solution changed from red to blue. Based on this principle, ENR can be qualitatively detected by the naked eye and quantitatively detected by measuring the absorbance ratio at 650 nm and 530 nm. The experimental results showed a good linear relationship within the ENR concentration range of 0-400 nM, with a limit of detection (LOD) of 1.72 nM, which is satisfactory for detection in food safety. Additionally, this method has also been successfully applied to the detection of ENR in tap water, river water, milk, serum and urine, with good recovery rates and RSD values of less than 7%, indicating its great potential for ENR detection in environmental water samples. More importantly, the combination of this method with a smartphone platform provided great convenience for on-site and visual detection of ENR, offering promising applicability prospects.

6.
PeerJ ; 12: e17995, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39224821

RESUMEN

Background: This cross-sectional study aimed to address a critical gap in the understanding of the association between body mass index (BMI) and physical fitness levels in adolescents with hearing impairment (HI) in China. This study investigated how different BMI levels impact the physical fitness index (PFI) of HI adolescents. Methods: This study employed a physical fitness test for HI adolescents attending special education schools. The test included eight components: height, weight, 50-m sprint, standing long jump, sit and reach, endurance run, bent-knee sit-up (for girls), and pull-up (for boys). Test scores for each student were standardized by age and gender. Individual Z-scores were then calculated, and the sum of these Z-scores constituted the PFI. Logistic regression was used to analyze the relationship between BMI and PFI across different gender and age groups. Statistical significance was set at P < 0.05. Results: The linear regression model showed an inverted U-shaped relationship between BMI and PFI. At the same BMI level, boys exhibited superior physical fitness compared to girls with the same BMI (P < 0.05). Statistically significant differences in PFI levels were observed between normal-weight and obese males, as well as between underweight and obese boys (P < 0.05). In the 13-15 and 16-18 age groups, the increase in BMI has a greater impact on boys PFI than on girls. Conclusions: Adolescents with HI generally demonstrated good physical fitness. Compared to individuals with normal weight, those who were underweight, overweight, or obese exhibited lower levels of physical fitness. Future interventions should focus on adolescents with HI with abnormal BMI.


Asunto(s)
Índice de Masa Corporal , Pérdida Auditiva , Aptitud Física , Humanos , Masculino , Femenino , Estudios Transversales , Adolescente , Aptitud Física/fisiología , China/epidemiología , Pérdida Auditiva/epidemiología , Pérdida Auditiva/fisiopatología , Niño
7.
Cureus ; 16(8): e68087, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39347154

RESUMEN

Previous experimental findings and clinical evidence have shown the important role of carbon dioxide (CO2) in regulating cerebral vascular tension. CO2 can affect the CNS through various mechanisms. With factors such as patient physiology or surgical interventions potentially causing increased arterial partial pressure of carbon dioxide (PaCO2) levels during mechanical ventilation in general anesthesia, it is important to explore the potential risks or benefits of intraoperative permissive hypercapnia on brain function. In November 2023, we conducted a thorough review of PubMed to establish the article outline. Articles that were non-English or repetitive were eliminated. We collected information on the year, topic, key findings, and opinions of each article. This review not only comprehensively summarizes the factors that contribute to the elevation of intraoperative PaCO2, but also explores the impact of fluctuations in PaCO2 levels on the CNS and the underlying mechanisms involved. At the same time, this article provides our understanding of the potential clinical significance of actively regulating PaCO2 levels. In addition, we propose that the aspects of permissive hypercapnia can be further studied to provide a reliable basis for clinical decision-making. The effects of permissive hypercapnia on the CNS remain a topic of debate. Further prospective randomized controlled studies are needed to determine if permissive hypercapnia can be safely promoted during mechanical ventilation in general anesthesia.

8.
Molecules ; 29(17)2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39274977

RESUMEN

To improve exercise performance, the supplement of nutrients has become a common practice before prolonged exercise. Trimethylamine N-oxide (TMAO) has been shown to ameliorate oxidative stress damage, which may be beneficial in improving exercise capacity. Here, we assessed the effects of TMAO on mice with exhaustive swimming, analyzed the metabolic changes, and identified significantly altered metabolic pathways of skeletal muscle using a nuclear magnetic resonance-based (NMR-based) metabolomics approach to uncover the effects of TMAO improving exercise performance of mice. We found that TMAO pre-administration markedly prolonged the exhaustive time in mice. Further investigation showed that TMAO pre-administration increased levels of 3-hydroxybutyrate, isocitrate, anserine, TMA, taurine, glycine, and glutathione and disturbed the three metabolic pathways related to oxidative stress and protein synthesis in skeletal muscle. Our results provide a metabolic mechanistic understanding of the effects of TMAO supplements on the exercise performance of skeletal muscle in mice. This work may be beneficial in exploring the potential of TMAO to be applied in nutritional supplementation to improve exercise performance. This work will lay a scientific foundation and be beneficial to exploring the potential of TMAO to apply in nutritional supplementation.


Asunto(s)
Metabolómica , Metilaminas , Músculo Esquelético , Condicionamiento Físico Animal , Animales , Metilaminas/metabolismo , Metilaminas/farmacología , Ratones , Metabolómica/métodos , Músculo Esquelético/metabolismo , Músculo Esquelético/efectos de los fármacos , Masculino , Metaboloma/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos , Espectroscopía de Protones por Resonancia Magnética , Natación
9.
Int Immunopharmacol ; 141: 112909, 2024 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-39154531

RESUMEN

The prognosis for esophageal squamous cell carcinoma (ESCC), a prevalent and aggressive form of cancer, remains poor despite advancements in treatment options. Addressing the gap in comprehensive prognostic information derived from circRNA expression profiles for ESCC, our study aimed to establish a linkage between circRNA expressions and ESCC prognosis. To achieve this, we first developed an optimized prognostic model named T cell-related risk score (TRRS), which integrates T cell-associated features with machine learning algorithms. In parallel, we re-analyzed existing RNA-seq datasets to redefine the expression profiles of circRNAs and mRNAs. Utilizing the TRRS as a foundational "bridge," we identified circRNAs correlated with TRRS, leading to the development of a novel circRNA pair-based prognostic model, the TCRS, which is independent of specific expression levels. Further investigations uncovered two circRNAs, circNLK(5,6,7).1 and circRC3H1(2).1, with potential functional significance. These findings underscore the utility of these risk scores as tools for predicting overall survival and identifying potential therapeutic targets for ESCC patients.


Asunto(s)
Biomarcadores de Tumor , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , ARN Circular , Humanos , ARN Circular/genética , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/inmunología , Neoplasias Esofágicas/diagnóstico , Carcinoma de Células Escamosas de Esófago/genética , Carcinoma de Células Escamosas de Esófago/mortalidad , Carcinoma de Células Escamosas de Esófago/inmunología , Pronóstico , Biomarcadores de Tumor/genética , Regulación Neoplásica de la Expresión Génica , Linfocitos T/inmunología , Masculino , Femenino , Aprendizaje Automático , Persona de Mediana Edad
10.
Food Chem ; 461: 140944, 2024 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-39182338

RESUMEN

Processing is an indispensable technology in the preparation of Spirulina platensis (S. platensis). The key odorants in liquids, muds, and powders from S. platensis (NM and GZ) were characterized. A total of 90 odorants were identified and 41 odorants were sniffed with the flavor dilution (FD) factors ranging from 1 to 729. Among them, nonanal, decanal, d-limonene, ß-cyclocitral, and ß-ionone with FD factors ≥1 were detected in S. platensis during the whole processing stages. In addition, heptanal, (E, E)-2,4-nonadienal, trans-4,5-epoxy-(E)-2-decenal, 1-hepten-3-one, isophorone, 3-ethyl-2,5-dimethylpyrazine, and α-ionone exhibited higher odor activity values in powders; ß-myrcene, methional, and S-methyl methanethiosulphonate were key odorants in muds; while trans-3-penten-2-ol was key odorant in liquids. Besides, the GZ-mud presented stronger earthy and fishy odor than NM-mud. S. platensis powders have the stronger grassy odor, roasted odor, and marine odor than S. platensis muds. Overall, drying process promotes the formation of aldehydes, heterocyclic compounds, and terpenoids.


Asunto(s)
Aromatizantes , Odorantes , Spirulina , Spirulina/química , Odorantes/análisis , Aromatizantes/química , Manipulación de Alimentos , Compuestos Orgánicos Volátiles/química , Cromatografía de Gases y Espectrometría de Masas , Humanos , Nariz Electrónica
11.
Medicine (Baltimore) ; 103(32): e39278, 2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-39121314

RESUMEN

RATIONALE: Myelin oligodendrocyte glycoprotein (MOG) antibody-related disease is a relatively recent entity in inflammatory demyelinating disease. Its clinical presentation varies in severity and the lack of specific imaging features makes it easy to misdiagnose. We now report the case of a MOG antibody-positive patient who presented with diplopia and dizziness, and whose brain magnetic resonance imaging (MRI) showed abnormal signals in the bilateral pontine brachium. PATIENT CONCERNS: A previously healthy 52-year-old woman presented with diplopia and dizziness, and was hospitalized 4 days after onset. DIAGNOSES: Brain MRI demonstrated abnormal hyperintense signals in the bilateral pontine brachium on T2-weighted fluid attenuated inversion recovery imaging. MRI enhancement showed abnormal enhancement foci in bilateral pontine brachium and pons. Cerebrospinal fluid examination showed Oligoclonal IgG bands were negative. The IgG index was normal, and serum aquaporin-4 antibody was negative, while serum MOG-Ab was positive (1:100). In conjunction with a positive serum MOG antibody and exclusion of other diseases, diagnosis of MOG antibody-related disease was made. INTERVENTIONS: Intravenous methylprednisolone followed by oral corticosteroids. OUTCOMES: Symptoms resolved completely. At 4-month follow-up. Follow-up after 4 months showed disappearance of the abnormal signal in the left pontine brachium and diminution of abnormal high signal in the right compared to the previous one, and there was no recurrence 1 year after the onset of the disease. LESSONS: If brain MRI indicating bilateral, multiple, and diffuse abnormal signals in the pontine brachium, and a discrepancy between the clinical symptoms and the imaging severity, a diagnosis of demyelinating disease should be considered highly probable. In such cases, anti-MOG antibody testing is essential for further defining the etiology. The clinical phenotype and imaging manifestations of MOG antibody-positive brainstem encephalitis may lack sufficient specificity to be readily identifiable. Timely diagnosis and early glucocorticoid therapy are beneficial in improving prognosis and preventing recurrence.


Asunto(s)
Autoanticuerpos , Imagen por Resonancia Magnética , Glicoproteína Mielina-Oligodendrócito , Puente , Humanos , Femenino , Persona de Mediana Edad , Glicoproteína Mielina-Oligodendrócito/inmunología , Autoanticuerpos/sangre , Puente/diagnóstico por imagen , Puente/patología , Metilprednisolona/uso terapéutico
12.
Res Dev Disabil ; 153: 104815, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39142086

RESUMEN

BACKGROUND: Caregivers of children with neurodevelopmental disorders and medical complexities (NDD-MC) coordinate care across complex multisectoral systems. Often NDD-MC children have complex behaviors, however there is limited information on coordination needs for families. AIM: The objective of this mixed methods study was to understand the needs of families with NDD-MC children. METHODS AND PROCEDURES:  This sequential exploratory study obtained the perspectives of 67 caregivers of NDD-MC children using semi-structured interviews and validated questionnaires to measure family quality of life, care integration, and resource use. An adapted model using Maslow's hierarchy of needs was integrated, to understand the impacts of caregiving on quality of life. OUTCOMES AND RESULTS: Lack of support in caring for NDD-MC children negatively impacted family quality of life, resulting in various unmet needs, including caregiver burden, behavioural challenges, financial losses, and mental health issues. Caregivers dealt with a fragmented healthcare system that offered limited support to address coordination challenges. CONCLUSIONS AND IMPLICATIONS: The implementation of a needs-based care coordination program is recommended to consider the health, educational, and social needs of NDD-MC children and their families. Effective care for children with complex needs should tailor support for families using Maslow's hierarchy to enhance quality of life.


Asunto(s)
Cuidadores , Trastornos del Neurodesarrollo , Calidad de Vida , Humanos , Cuidadores/psicología , Niño , Trastornos del Neurodesarrollo/psicología , Trastornos del Neurodesarrollo/terapia , Femenino , Masculino , Adulto , Adolescente , Necesidades y Demandas de Servicios de Salud , Evaluación de Necesidades , Preescolar , Persona de Mediana Edad , Carga del Cuidador/psicología , Costo de Enfermedad , Apoyo Social , Encuestas y Cuestionarios
13.
Zhongguo Zhong Yao Za Zhi ; 49(12): 3340-3347, 2024 Jun.
Artículo en Chino | MEDLINE | ID: mdl-39041097

RESUMEN

This study aims to explore the protective effect of Albizia chinensis saponin on ethanol-induced acute gastric ulcer in rats and elucidate its mechanisms. SD rats were deprived of water for 24 hours before the experiment. The control group and model group were administered water by gavage, and the positive drug group received rabeprazole sodium solution(40 mg·kg~(-1)) by gavage. The experimental groups were given different doses of Albizia chinensis saponin solution(3, 10, and 30 mg·kg~(-1)). After 30 minutes, the control group received 1.5 mL of water by gavage, while the other groups were administered an equal volume of 95% ethanol for modeling. After six hours, the rats were killed by cervical dislocation, and the stomachs were collected. The ulcer area was measured, and the ulcer index was calculated. Hematoxylin-eosin(HE) staining was performed to assess histopathological changes in gastric tissue. Periodic acid-Schiff(PAS) staining was used to evaluate the distribution of gastric mucosal surface mucus. Enzyme-linked immunosorbent assay(ELISA) was employed to measure the levels of phospholipids and aminohexose in the gastric mucosa. Western blot was performed to determine the expression levels of the bicarbonate transporter, matrix metalloproteinase, and tight junction-associated proteins in gastric tissue. Immunohistochemistry(IHC) staining was conducted to quantify the number of positive cells for secreted mucin and tight junction-associated proteins. The results showed that the gastric tissue surface of rats in the control group was smooth without ulceration, and the gastric ulcer index of rats in the model group was 35±11. Albizia chinensis saponin at doses of 3, 10, and 30 mg·kg~(-1) resulted in inhibition rates of gastric ulcer of 46%(P<0.01), 85%(P<0.001), and 100%(P<0.001), respectively. Severe disruption of gastric mucosal structure and absence of the mucus layer were observed in the model group. Compared with the model group, the Albizia chinensis saponin group showed intact gastric mucosal surface mucus layer, significantly increased levels of phospholipids and aminohexose in the mucus, increased number of MUC5AC positive cells, and upregulated expression levels of the bicarbonate transporter SLC26A3 and CFTR. It also showed decreased phosphorylation of JNK and c-Jun, reduced expression levels of MMP-8, elevated expression of TIMP-1, and increased expression levels of Occludin and ZO-1. In conclusion, Albizia chinensis saponin enhances the function of the mucus-bicarbonate barrier by upregulating the content of MUC5AC, phospholipids, and aminohexose and increasing the expression levels of the bicarbonate transporter SLC26A3 and CFTR. Moreover, Albizia chinensis saponin exerts its protective effects on gastric ulcers by inhibiting the JNK signaling pathway to prevent excessive activation of MMP-8, thereby reducing the degradation of Occludin and ZO-1 and enhancing the mucosal barrier function. In summary, Albizia chinensis saponin exerts its anti-gastric ulcer effects by simultaneously enhancing the mucus barrier and the mucosal barrier.


Asunto(s)
Albizzia , Medicamentos Herbarios Chinos , Etanol , Mucosa Gástrica , Moco , Ratas Sprague-Dawley , Saponinas , Úlcera Gástrica , Animales , Saponinas/farmacología , Ratas , Mucosa Gástrica/efectos de los fármacos , Mucosa Gástrica/metabolismo , Etanol/efectos adversos , Masculino , Úlcera Gástrica/inducido químicamente , Úlcera Gástrica/tratamiento farmacológico , Úlcera Gástrica/metabolismo , Úlcera Gástrica/prevención & control , Medicamentos Herbarios Chinos/administración & dosificación , Medicamentos Herbarios Chinos/farmacología , Albizzia/química , Moco/metabolismo , Sustancias Protectoras/farmacología , Sustancias Protectoras/administración & dosificación , Humanos
14.
Cell Biochem Biophys ; 2024 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-39078538

RESUMEN

Systemic lupus erythematosus (SLE) is a classic autoimmune disease characterized by abnormal autoantibodies, immune complex deposition, and tissue inflammation. Despite extensive research, the exact etiology and progression of SLE remain elusive. Cytidine/uridine monophosphate kinase 2 (CMPK2), a mitochondrial nucleoside monophosphate kinase, has garnered attention for its potential involvement in the development of various diseases, including SLE, where it has been observed to be dysregulated in affected individuals. However, the specific involvement of CMPK2 in the pathogenesis of SLE remains unclear. This study aims to clarify the expression level of CMPK2 in SLE CD4+ T cells and explore its impact on CD4+ T cells. The expression levels of the CMPK2 gene and the corresponding CMPK2 protein in CD4+ T cells of SLE patients were quantified using RT-qPCR and Western blot, respectively. Immunofluorescence and RT-qPCR were used to assess the mitochondrial function of SLE CD4+ T cells. Flow cytometry was used to assess CD4+ T cell activation and apoptosis levels. The impact of CMPK2 on CD4+ T cells was investigated by gene transfection experiment. We found that CMPK2 was significantly upregulated in SLE CD4+ T cells at both gene and protein levels. These cells demonstrated aberrant mitochondrial function, as evidenced by elevated mitochondrial reactive oxygen species (mtROS) levels, mitochondrial membrane potential, and mitochondrial DNA (mtDNA) copy number. Flow cytometry revealed a notable increase in both apoptosis and activation levels of CD4+ T cells in SLE patients. Gene transfection experiments showed that suppressing CMPK2 led to a significant improvement in these conditions. These findings suggest that CMPK2 may be involved in the pathogenesis of SLE by regulating mitochondrial dysfunction in CD4+ T cells and thus affecting CD4+ T cell activation and apoptosis. Our study may provide a new target for the treatment of SLE.

15.
Nat Commun ; 15(1): 5542, 2024 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-38956040

RESUMEN

Efficiently fabricating a cavity that can achieve strong interactions between terahertz waves and matter would allow researchers to exploit the intrinsic properties due to the long wavelength in the terahertz waveband. Here we show a terahertz detector embedded in a Tamm cavity with a record Q value of 1017 and a bandwidth of only 469 MHz for direct detection. The Tamm-cavity detector is formed by embedding a substrate with an Nb5N6 microbolometer detector between an Si/air distributed Bragg reflector (DBR) and a metal reflector. The resonant frequency can be controlled by adjusting the thickness of the substrate layer. The detector and DBR are fabricated separately, and a large pixel-array detector can be realized by a very simple assembly process. This versatile cavity structure can be used as a platform for preparing high-performance terahertz devices and opening up the study of the strong interactions between terahertz waves and matter.

16.
World J Gastroenterol ; 30(24): 3086-3105, 2024 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-38983958

RESUMEN

BACKGROUND: Helicobacter pylori (HP), the most common pathogenic microorganism in the stomach, can induce inflammatory reactions in the gastric mucosa, causing chronic gastritis and even gastric cancer. HP infection affects over 4.4 billion people globally, with a worldwide infection rate of up to 50%. The multidrug resistance of HP poses a serious challenge to eradication. It has been de-monstrated that compared to bismuth quadruple therapy, Qingre Huashi decoction (QHD) combined with triple therapy exhibits comparable eradication rates but with a lower incidence of adverse reactions; in addition, QHD can directly inhibit and kill HP in vitro. AIM: To explore the effect and mechanism of QHD on clinically multidrug-resistant and strong biofilm-forming HP. METHODS: In this study, 12 HP strains were isolated in vitro after biopsy during gastroscopy of HP-infected patients. In vitro, the minimum inhibitory concentration (MIC) values for clinical HP strains and biofilm quantification were determined through the E-test method and crystal violet staining, respectively. The most robust biofilm-forming strain of HP was selected, and QHD was evaluated for its inhibitory and bactericidal effects on the strain with strong biofilm formation. This assessment was performed using agar dilution, E-test, killing dynamics, and transmission electron microscopy (TEM). The study also explored the impact of QHD on antibiotic resistance in these HP strains with strong biofilm formation. Crystalline violet method, scanning electron microscopy, laser confocal scanning microscopy, and (p)ppGpp chromatographic identification were employed to evaluate the effect of QHD on biofilm in strong biofilm-forming HP strains. The effect of QHD on biofilm and efflux pump-related gene expression was evaluated by quantitative polymerase chain reaction. Non-targeted metabolomics with UHPLC-MS/MS was used to identify potential metabolic pathways and biomarkers which were different between the NC and QHD groups. RESULTS: HP could form biofilms of different degrees in vitro, and the intensity of formation was associated with the drug resistance of the strain. QHD had strong bacteriostatic and bactericidal effects on HP, with MICs of 32-64 mg/mL. QHD could inhibit the biofilm formation of the strong biofilm-forming HP strains, disrupt the biofilm structure, lower the accumulation of (p)ppGpp, decrease the expression of biofilm-related genes including LuxS, Spot, glup (HP1174), NapA, and CagE, and reduce the expression of efflux pump-related genes such as HP0605, HP0971, HP1327, and HP1489. Based on metabolomic analysis, QHD induced oxidative stress in HP, enhanced metabolism, and potentially inhibited relevant signaling pathways by upregulating adenosine monophosphate (AMP), thereby affecting HP growth, metabolism, and protein synthesis. CONCLUSION: QHD exerts bacteriostatic and bactericidal effects on HP, and reduces HP drug resistance by inhibiting HP biofilm formation, destroying its biofilm structure, inhibiting the expression of biofilm-related genes and efflux pump-related genes, enhancing HP metabolism, and activating AMP in HP.


Asunto(s)
Antibacterianos , Biopelículas , Medicamentos Herbarios Chinos , Infecciones por Helicobacter , Helicobacter pylori , Pruebas de Sensibilidad Microbiana , Helicobacter pylori/efectos de los fármacos , Helicobacter pylori/aislamiento & purificación , Biopelículas/efectos de los fármacos , Humanos , Medicamentos Herbarios Chinos/farmacología , Infecciones por Helicobacter/tratamiento farmacológico , Infecciones por Helicobacter/microbiología , Antibacterianos/farmacología , Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Gastroscopía
17.
Front Neurol ; 15: 1424390, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39081342

RESUMEN

Purpose: Exergames are an innovative method that can promote neuroplasticity and improve the cognitive abilities of the elderly. This study aimed to compare the effects of single-task and multi-task exergames on the cognitive ability of the elderly with mild cognitive impairment (MCI). Methods: Computerized literature search was performed using PubMed, Web of Science, EBSCO, Elsevier, ProQuest, China National Knowledge Infrastructure (CNKI), Wanfang and VIP database to identify relevant articles from the establishment of the database from inception to April 1, 2024. The inclusion criteria were: (i) participants aged 60 or older diagnosed with mild cognitive impairment, regardless of gender; (ii) use of randomized controlled trials (RCTs); (iii) interventions involving exergames with physical activity or as the primary variable; and (iv) outcome measures using standardized neuropsychological instruments to assess cognitive function, including statistical data on sample size, mean, and standard deviation. Finally, the included study comprised a total of 526 participants. Mean difference (MD) and 95% confidence interval (CI) were used to synthesize the effect size in the data. Results: 11 studies were included. Due to the differences in the intervention methods, subgroup analysis was performed on the included research. Compared with the control group assessed by the Montreal Cognitive Assessment Scale, the single-task intervention improved the cognitive ability of the elderly with MCI (MD 3.40, 95% CI 2.43-4.37), the Mini-Mental State Examination Scale (MD 2.38, 95% CI -2.03 to 2.72), the Trail Making Test (MD -3.89, 95% CI -6.45 to -1.33), and the Digit Span Forward test (MD 1.16, 95% CI 0.73-1.60). Conclusion: This meta-analysis supports that exergames could be an effective cognitive rehabilitation method for MCI patients. Our study recommends that patients implement a customized exergames program and adhere to it for a long time. It is necessary to pay attention to the exercise guidelines and provide evidence from clinicians. Strengths and limitations of this study: (1) This meta-analysis supports that exergames could be an effective cognitive rehabilitation method for MCI patients. Our study recommends that patients implement a customized exergames program and adhere to it for a long time. It is necessary to pay attention to the exercise guidelines and provide evidence from clinicians. (2) This research provides preliminary evidence for the clinical utility of VR tasks developed for mild cognitive impairment. (3) In this paper, only relevant studies in Chinese and English were searched, and no studies in other languages were searched.

18.
World J Gastroenterol ; 30(23): 2959-2963, 2024 Jun 21.
Artículo en Inglés | MEDLINE | ID: mdl-38946873

RESUMEN

In this editorial, we comment on the article entitled "Stage at diagnosis of colorectal cancer through diagnostic route: Who should be screened?" by Agatsuma et al. Colorectal cancer (CRC) is emerging as an important health issue as its incidence continues to rise globally, adversely affecting the quality of life. Although the public has become more aware of CRC prevention, most patients lack screening awareness. Some poor lifestyle practices can lead to CRC and symptoms can appear in the early stages of CRC. However, due to the lack of awareness of the disease, most of the CRC patients are diagnosed already at an advanced stage and have a poor prognosis.


Asunto(s)
Neoplasias Colorrectales , Detección Precoz del Cáncer , Humanos , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/prevención & control , Neoplasias Colorrectales/epidemiología , Detección Precoz del Cáncer/métodos , Calidad de Vida , Estadificación de Neoplasias , Tamizaje Masivo/métodos , Tamizaje Masivo/normas , Pronóstico , Colonoscopía , Incidencia , Conocimientos, Actitudes y Práctica en Salud , Estilo de Vida
19.
BMC Neurol ; 24(1): 206, 2024 Jun 17.
Artículo en Inglés | MEDLINE | ID: mdl-38886633

RESUMEN

BACKGROUND: Mutations in the SLC5A7 gene cause congenital myasthenia, a rare genetic disorder. Mutation points in the SLC5A7 gene differ among individuals and encompass various genetic variations; however, exon deletion variants have yet to be reported in related cases. This study aims to explore the clinical phenotype and genetic traits of a patient with congenital myasthenic syndrome due to SLC5A7 gene variation and those of their family members. CASE PRESENTATION: We describe a case of a Chinese male with congenital myasthenic syndrome presenting fluctuating limb weakness. Genetic testing revealed a heterozygous deletion mutation spanning exons 1-9 in the SLC5A7 gene. QPCR confirmed a deletion in exon 9 of the SLC5A7 gene in the patient's mother and brother. Clinical symptoms of myasthenia improved following treatment with pyridostigmine. CONCLUSION: Exons 1, 5, and 9 of the SLC5A7 gene encode the choline transporter's transmembrane region. Mutations in these exons can impact the stability and plasma membrane levels of the choline transporter. Thus, a heterozygous deletion in exons 1-9 of the SLC5A7 gene could be the pathogenic cause for this patient. In patients exhibiting fluctuating weakness, positive RNS, and seronegativity for myasthenia gravis antibodies, a detailed family history should be considered, and enhanced genetic testing is recommended to determine the cause.


Asunto(s)
Síndromes Miasténicos Congénitos , Humanos , Síndromes Miasténicos Congénitos/genética , Síndromes Miasténicos Congénitos/diagnóstico , Masculino , Mutación , Linaje , Adulto , Pruebas Genéticas/métodos , Femenino , Simportadores/genética
20.
Talanta ; 278: 126416, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-38924989

RESUMEN

The non-thermal and thermal effects on aroma of sea buckthorn juice have rarely been investigated. In this study, 57 odor compounds were identified in fresh sea buckthorn juice (FSBJ), high pressure processing sea buckthorn juice (HSBJ), and pasteurized sea buckthorn juice (PSBJ), including 29 esters, 8 aldehydes, 1 ketone, 5 alcohols, 5 acids, 6 terpenoids, and 3 others. Ethyl 2-methylbutanoate, ethyl 3-methylbutanoate, ethyl hexanoate, and ethyl 2-hydroxy-3-methylbutanoate with flavor dilution factors ranging from 729 to 59,049 contributed to the fruity odors of FSBJ and HSBJ. Besides, the formation of off-odor compounds including hexanal, nonanal, furfural, 3-methylbutanoic acid, and dimethyl disulfide with odor activity values ≥ 1, imparts fatty, roasted, sweaty, and cooked odor in PSBJ. The variations of vitamin C and reducing sugar are significantly associated with changes in odor-active compounds during pasteurized processing. These findings provide new insights that high pressure processing minimizes the adverse effects of pasteurization.


Asunto(s)
Jugos de Frutas y Vegetales , Hippophae , Odorantes , Presión , Hippophae/química , Odorantes/análisis , Jugos de Frutas y Vegetales/análisis , Pasteurización , Compuestos Orgánicos Volátiles/análisis , Compuestos Orgánicos Volátiles/química , Manipulación de Alimentos/métodos , Cromatografía de Gases y Espectrometría de Masas
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