Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 183
Filtrar
1.
Br J Cancer ; 2024 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-39266624

RESUMO

BACKGROUND: Temozolomide (TMZ) is the first-line chemotherapeutic drug for gliomas treatment. However, the clinical efficacy of TMZ in glioma patients was very limited. Therefore, it is urgently needed to discover a novel approach to increase the sensitivity of glioma cells to TMZ. METHODS: Western blot, immunohistochemical staining, and qRT-PCR assays were used to explore the mechanisms underlying TMZ promoting DKK1 expression and andrographolide (AND) inhibiting DKK1 expression. HPLC was used to detect the ability of andrographolide (AND) to penetrate the blood-brain barrier. MTT assay, bioluminescence images, magnetic resonance imaging (MRI) and H&E staining were employed to measure the proliferative activity of glioma cells and the growth of intracranial tumors. RESULTS: TMZ can promote DKK1 expression in glioma cells and brain tumors of an orthotopic model of glioma. DKK1 could promote glioma cell proliferation and tumor growth in an orthotopic model of glioma. Mechanistically, TMZ increased EGFR expression and subsequently induced the activation of its downstream MEK-ERK and PI3K-Akt pathways, thereby promoting DKK1 expression in glioma cells. Andrographolide inhibited TMZ-induced DKK1 expression through inactivating MEK-ERK and PI3K-Akt pathways. Andrographolide can cross the blood-brain barrier, the combination of TMZ and andrographolide not only improved the anti-tumor effects of TMZ but also showed a survival benefit in an orthotopic model of glioma. CONCLUSION: Andrographolide can enhance anti-tumor activity of TMZ against glioma by inhibiting DKK1 expression.

2.
Support Care Cancer ; 32(9): 605, 2024 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-39167202

RESUMO

PURPOSE: To comprehensively analyze the factors associated with different intensities of physical activity and sedentary behavior in newly diagnosed lung cancer patients in the early postoperative period, providing a basis for clinically tailored personalized intervention measures. METHODS: A cross-sectional study design was employed, and 915 patients newly diagnosed with lung cancer completed a questionnaire survey on demographics, disease, health-related fitness, and psychosocial factors. Physical activity levels and sedentary behaviors were assessed using the International Physical Activity Questionnaire. Data were analyzed using SPSS 25.0. RESULTS: The physical activity level of walking amounted to 1265.4 ± 1025.8 MET-min/week, potentially influenced by factors such as region, depression, health behavior capacity, and lactate dehydrogenase. The moderate-intensity physical activity level stood at 529.8 ± 976.5 MET-min/week, subject to influences like regional lymph node staging, body mass index, and albumin levels, among other factors. The high-intensity physical activity level was 111.1 ± 731.0 MET-min/week, potentially affected by region, grip strength, health behavior capacity, and other factors. Sedentary time averaged 5 ± 3 h/day, potentially influenced by work conditions, red blood cell values, and other factors. CONCLUSION: In patients newly diagnosed with lung cancer, early postoperative walking activities predominate, with less engagement in high-intensity physical activity and prolonged sedentary time. Physical activity and sedentary behavior may be influenced by various factors such as geography, physiology, psychology, and health-related fitness. To enhance the quality of life of patients with lung cancer in the early postoperative period, tailored intervention measures should be devised based on the circumstances of the individual patients.


Assuntos
Neoplasias Pulmonares , Comportamento Sedentário , Humanos , Estudos Transversais , Masculino , Feminino , Neoplasias Pulmonares/cirurgia , Neoplasias Pulmonares/psicologia , Pessoa de Meia-Idade , Idoso , Inquéritos e Questionários , Período Pós-Operatório , Adulto , Exercício Físico/fisiologia , Comportamentos Relacionados com a Saúde , Caminhada/fisiologia
3.
Toxins (Basel) ; 16(8)2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39195766

RESUMO

In the context of the potential immunomodulatory properties of curcumin in counteracting the detrimental effects of concurrent exposure to Deoxynivalenol (DON) and Aflatoxin B1 (AFB1), a comprehensive 28-days trial was conducted utilizing 60 randomly allocated mice divided into four groups. Administration of curcumin at a dosage of 5 mg/kg body weight in conjunction with DON at 0.1 mg/kg and AFB1 at 0.01 mg/kg body weight was undertaken to assess its efficacy. Results indicated that curcumin intervention demonstrated mitigation of splenic structural damage, augmentation of serum immunoglobulin A (IgA) and immunoglobulin G (IgG) levels, elevation in T lymphocyte subset levels, and enhancement in the mRNA expression levels of pro-inflammatory cytokines TNF-α, IFN-γ, IL-2, and IL-6. Furthermore, curcumin exhibited a suppressive effect on apoptosis in mice, as evidenced by decreased activity of caspase-3 and caspase-9, reduced expression levels of pro-apoptotic markers Bax and Cytochrome-c (Cyt-c) at both the protein and mRNA levels, and the maintenance of a balanced expression ratio of mitochondrial apoptotic regulators Bax and Bcl-2. Collectively, these findings offer novel insights into the therapeutic promise of curcumin in mitigating immunosuppression and apoptotic events triggered by mycotoxin co-exposure.


Assuntos
Aflatoxina B1 , Apoptose , Curcumina , Citocinas , Baço , Tricotecenos , Animais , Tricotecenos/toxicidade , Curcumina/farmacologia , Aflatoxina B1/toxicidade , Apoptose/efeitos dos fármacos , Baço/efeitos dos fármacos , Baço/imunologia , Camundongos , Citocinas/metabolismo , Citocinas/genética , Masculino
4.
Artigo em Inglês | MEDLINE | ID: mdl-39099624

RESUMO

Purpose: Breast cancer is the leading cause of cancer mortality among women. Radiotherapy can reduce recurrence and prolong survival of patients accepting breast-conserving surgery (BCS). This study aims to compare acute skin reactions in patients receiving hypofractionated versus conventional radiotherapy at a single institution and to summarize the relevant influencing factors. Methods: This study analyzed 152 patients who underwent either hypofractionated or conventional whole-breast irradiation (WBI) after BCS. Acute skin toxicity was assessed according to the Radiation Therapy Oncology Group (RTOG) criteria. Predictive factors for acute skin toxicity were identified using multivariate analysis and visualized using a forest spot. Results: Grade 0 reactions occurred in 75.34% vs 70.89%, grade 1 in 16.44% vs 15.19%, grade 2 in 8.22% vs 12.66%, and grade 3 in 0% vs 1.27% of patients receiving hypofractionated and conventional WBI, respectively. There was no statistically significant difference in acute skin reaction in patients treated with hypofractionated radiation compared with conventional radiation (P = 0.62). Multivariate analysis revealed that metastatic lymph nodes (P = 0.021), whole-breast planning target volume (PTV-WB) (P < 0.001), and tumor bed planning target volume (PTV-TB) (P = 0.002) were significantly correlated with higher rates of acute skin toxicity. Conclusion: Hypofractionated WBI demonstrated similar acute skin adverse reactions compared to conventional WBI. These findings indicate that hypofractionated radiotherapy offers comparable tolerance, equivalent curative effect, convenience, and economic benefits, supporting its clinical promotion.

5.
Aging Clin Exp Res ; 36(1): 151, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-39060872

RESUMO

Drug-related problems (DRPs) are critical medical issues during transition from hospital to home with high prevalence. The application of a variety of interventional strategies as part of the transitional care has been studied for preventing DRPs. However, it remains challenging for minimizing DRPs in patients, especially in older adults and those with high risk of medication discrepancies after hospital discharge. In this narrative review, we demonstrated that age, specific medications and polypharmacy, as well as some patient-related and system-related factors all contribute to a higher prevalence of transitional DPRs, most of which could be largely prevented by enhancing nurse-led multidisciplinary medication reconciliation. Nurses' contributions during transitional period for preventing DRPs include information collection and evaluation, communication and education, enhancement of medication adherence, as well as coordination among healthcare professionals. We concluded that nurse-led strategies for medication management can be implemented to prevent or solve DRPs during the high-risk transitional period, and subsequently improve patients' satisfaction and health-related outcomes, prevent the unnecessary loss and waste of medical expenditure and resources, and increase the efficiency of the multidisciplinary teamwork during transitional care.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Reconciliação de Medicamentos , Cuidado Transicional , Humanos , Reconciliação de Medicamentos/métodos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/prevenção & controle , Polimedicação , Adesão à Medicação , Idoso , Alta do Paciente , Conduta do Tratamento Medicamentoso
6.
Res Gerontol Nurs ; 17(4): 202-212, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39047228

RESUMO

PURPOSE: To systematically review the available evidence regarding the prevalence and outcomes of cognitive frailty-a clinical syndrome characterized by the combination of physical frailty and cognitive impairment, without dementia-in community-dwelling older adults. METHOD: The following databases were searched: PubMed, Web of Science, Embase, EBSCO, Cochrane Central Register of Controlled Trials, ProQuest, CNKI, Wanfang, VIP, and CBMdisc (inception to October 2, 2023). RESULTS: Twenty-four studies were included (N = 62,169) reporting a median prevalence of cognitive frailty among community-dwelling older adults of 12.2%. Frailty with cognitive impairment was independently associated with increased all-cause mortality (adjusted 8-year hazard ratio [HR] = 2.6, 95% confidence interval [CI] [2.05, 3.30]). There was evidence of increased risk of 3-year mortality for frailty (adjusted HR = 1.92, 95% CI [1.26, 2.93]) and prefrailty (adjusted HR = 1.79, 95% CI [1.33, 2.41]) with cognitive impairment. There was also evidence of increased risk of dementia for frailty (adjusted 24-month HR = 6.19, 95% CI [2.74, 13.99]; adjusted 4-year HR = 4.98, 95% CI [2.17, 11.41]) and prefrailty (adjusted 4-year HR = 5.21, 95% CI [2.95, 9.20]; adjusted 5-year HR = 14.5, 95% CI [1.68, 125.1]) with cognitive impairment. Activities of daily living (ADL) dependence was more frequent in individuals with cognitive impairment and frailty (adjusted 4-year odds ratio = 5.6, 95% CI [2.13, 14.72]). CONCLUSION: Of community-dwelling older adults, 12.2% have cognitive frailty as well as increased risk of all-cause mortality, dementia, and ADL dependence. Further studies on prevention and treatment of cognitive frailty is warranted. Health care providers should formulate specific interventions to decrease the impact of cognitive frailty. [Research in Gerontological Nursing, 17(4), 202-212.].


Assuntos
Disfunção Cognitiva , Idoso Fragilizado , Fragilidade , Vida Independente , Humanos , Idoso , Prevalência , Disfunção Cognitiva/epidemiologia , Idoso Fragilizado/estatística & dados numéricos , Idoso Fragilizado/psicologia , Idoso de 80 Anos ou mais , Fragilidade/epidemiologia , Masculino , Feminino
7.
Sci Rep ; 14(1): 17389, 2024 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-39075052

RESUMO

Parents of children with retinoblastoma, the most common primary ocular malignant tumour in childhood, bear a heavy caregiving burden and are very susceptible to fatigue. However, little is known about their current status of fatigue and factors influencing fatigue; therefore,this study, based on the theory of unpleasant symptoms, and included 317 parents of children with retinoblastoma in China, whose general demographic data were collected, and on whom the fatigue severity scale (FSS), the generalized anxiety disorder (GAD-7) and 2-item patient health questionnaire (PHQ-2) were administered, from 9 March to 1 June 2020. The parents' FSS score and fatigue incidence were 4.41 ± 1.14 and 67.19%, respectively. The fatigue level was positively correlated with anxiety, depression, education, times of hospitalisations, and treatment types (r = 0.125-0.468, P < 0.05) and negatively correlated with health status, sleep quality, economic status, and family economic situation (r = - 0.120 to - 0.322, P < 0.05). Parent's anxiety level, being an only child and female sex of child influenced parents' fatigue. Healthcare personnel need to focus their attention on this high-risk fatigue group and implement appropriate interventions to reduce their fatigue level, promote their physical and mental health, and facilitate better care for children.


Assuntos
Fadiga , Pais , Retinoblastoma , Humanos , Retinoblastoma/psicologia , Feminino , Masculino , Pais/psicologia , Fadiga/psicologia , Adulto , Criança , Ansiedade , Inquéritos e Questionários , Pré-Escolar , Pessoa de Meia-Idade , China/epidemiologia , Depressão/epidemiologia , Lactente
8.
Mol Cancer ; 23(1): 152, 2024 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-39085861

RESUMO

Chemotherapy in combination with immunotherapy has gradually shown substantial promise to increase T cell infiltration and antitumor efficacy. However, paclitaxel in combination with immune checkpoint inhibitor targeting PD-1/PD-L1 was only used to treat a small proportion of metastatic triple-negative breast cancer (TNBC), and the clinical outcomes was very limited. In addition, this regimen cannot prevent paclitaxel-induced peripheral neuropathy. Therefore, there was an urgent need for a novel target to enhance the antitumor activity of paclitaxel and alleviate chemotherapy-induced peripheral neuropathy in breast cancer. Here, we found that Dickkopf-1 (DKK1) expression was upregulated in multiply subtypes of human breast cancer specimens after paclitaxel-based chemotherapy. Mechanistic studies revealed that paclitaxel promoted DKK1 expression by inducing EGFR signaling in breast cancer cells, and the upregulation of DKK1 could hinder the therapeutic efficacy of paclitaxel by suppressing the infiltration and activity of CD8+ T cells in tumor microenvironment. Moreover, paclitaxel treatment in tumor-bearing mice also increased DKK1 expression through the activation of EGFR signaling in the primary sensory dorsal root ganglion (DRG) neurons, leading to the development of peripheral neuropathy, which is charactered by myelin damage in the sciatic nerve, neuropathic pain, and loss of cutaneous innervation in hindpaw skin. The addition of an anti-DKK1 antibody not only improved therapeutic efficacy of paclitaxel in two murine subtype models of breast cancer but also alleviated paclitaxel-induced peripheral neuropathy. Taken together, our findings providing a potential chemoimmunotherapy strategy with low neurotoxicity that can benefit multiple subtypes of breast cancer patients.


Assuntos
Peptídeos e Proteínas de Sinalização Intercelular , Paclitaxel , Doenças do Sistema Nervoso Periférico , Paclitaxel/efeitos adversos , Paclitaxel/farmacologia , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Peptídeos e Proteínas de Sinalização Intercelular/genética , Humanos , Animais , Doenças do Sistema Nervoso Periférico/induzido quimicamente , Feminino , Camundongos , Linhagem Celular Tumoral , Receptores ErbB/metabolismo , Microambiente Tumoral/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Neoplasias da Mama/metabolismo , Transdução de Sinais/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/patologia , Neoplasias de Mama Triplo Negativas/metabolismo
9.
J Cancer Surviv ; 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38865009

RESUMO

PURPOSE: The study aims to investigate the relationship among social support, health behavior self-efficacy, anxiety, and the physical activity (PA) levels of lung cancer survivors, and to analyze whether health behavior self-efficacy and anxiety mediate the relationship between social support and PA levels. METHODS: In a cross-sectional study of 1128 lung cancer survivors from 16 Chinese hospitals, we collected demographic data and administered the Social Support Rating Scale (SSRS), Self-Rated Abilities for Health Practices Scale (SRAHP), Anxiety Scale (AS), and International Physical Activity Questionnaire (IPAQ). SPSS 25.0 was used for descriptive analyses, while the structural equation model in SPSS AMOS 24.0 was used to identify the direct, indirect, and total effects among variables. RESULTS: There were significant correlations among SSRS, SRAHP, AS, and PA (P < 0.01). Model outcomes revealed a positive association between social support and health behavior self-efficacy (ß = 0.732, P < 0.001). Health behavior self-efficacy positively correlated with PA levels (ß = 0.228, P < 0.001) and negatively with anxiety (ß=-0.252, P = 0.001). Moreover, health behavior self-efficacy was found to partially mediate the relationship between social support and PA (ß = 0.174, P < 0.001). CONCLUSIONS AND IMPLICATIONS FOR CANCER SURVIVORS: This study revealed a positive correlation between social support and health behavior self-efficacy, and between health behavior self-efficacy and PA levels among lung cancer survivors. Additionally, health behavior self-efficacy mediated the relationship between social support and PA levels. In future clinical practice, medical and nursing staff should assess social support and health behavior self-efficacy in lung cancer survivors to inform personalized PA interventions.

10.
J Food Sci ; 89(7): 4148-4161, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38838085

RESUMO

Freezing is a popular method of food preservation with multiple advantages. However, it may change the internal composition and quality of food. This study aimed to investigate the effect of modified starch on the storage stability of frozen raw noodles (FRNs) under refrigerated storage conditions. Oxidized starch (OS), a modified starch, is widely used in the food industry. In the present study, texture and cooking loss rate analyses showed that the hardness and chewiness of FRNs with added OS increased and the cooking loss rate decreased during the frozen storage process. Low-field nuclear magnetic resonance characterization confirmed that the water-holding capacity of FRNs with OS was enhanced. When 6% OS was added, the maximum freezable water content of FRNs was lower than the minimum freezable water content (51%) of FRNs without OS during freezing. Fourier-transform infrared spectroscopy showed that after the addition of OS, the secondary structures beneficial for structural maintenance were increased, forming a denser protein network and improving the microstructure of FRNs. In summary, the water state, protein structure, and quality characteristics of FRNs were improved by the addition of OS within an appropriate range.


Assuntos
Armazenamento de Alimentos , Congelamento , Oxirredução , Amido , Água , Amido/química , Água/química , Armazenamento de Alimentos/métodos , Culinária/métodos , Conservação de Alimentos/métodos , Espectroscopia de Infravermelho com Transformada de Fourier/métodos
11.
Virol J ; 21(1): 143, 2024 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-38915037

RESUMO

BACKGROUND: Omicron variants are currently the predominant circulating lineage worldwide and most cases are mild or asymptomatic. The Omicron variant is characterized by high transmissibility and immune evasion. Early identification of Omicron cases in clinical settings is crucial for controlling its spread. Previous studies have indicated that changes in hematological parameters can be used to predict the severity of coronavirus disease 2019 (COVID-19). However, the role of hematological parameters in non-severe and asymptomatic cases remains unknown. This study aimed to investigate the role of hematological parameters in non-severe and asymptomatic Omicron variant infections. METHODS: Hematological parameters and results were analyzed and compared in symptomatic (n = 356) and asymptomatic (n = 171) groups respectively, and between these two groups with positive COVID-19 tests. The utility of hematological parameters for predicting positive COVID-19 tests was analyzed using receiver operating characteristic curves. RESULTS: Individuals with non-severe cases exhibited decreased levels of platelets, lymphocytes, eosinophils, basophils, lymphocytes (%), eosinophils (%), and basophils (%), while exhibiting elevated counts of monocytes, neutrophils (%), monocytes (%), neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio (PLR), and C-reactive protein (CRP) when compared to suspected cases or asymptomatic carriers. In asymptomatic patients, positive carriers had lower leukocyte, neutrophil, and lymphocyte counts but higher monocyte, monocyte (%), PLR, and CRP levels than negative carriers. Basophil counts combined with lymphocytes or the PLR demonstrated a more significant predictive value in screening non-severe cases earlier compared to other parameters. The combined assessment of the monocyte (%) and the PLR had the highest area under the curve for diagnosing asymptomatic carriers. CONCLUSIONS: Circulating basophils, alone or in combination with other hematological parameters, may be used as efficient biomarkers for early screening of non-severe Omicron cases.


Assuntos
Infecções Assintomáticas , COVID-19 , SARS-CoV-2 , Humanos , COVID-19/diagnóstico , COVID-19/sangue , COVID-19/virologia , Masculino , Feminino , SARS-CoV-2/imunologia , SARS-CoV-2/genética , Pessoa de Meia-Idade , Adulto , Idoso , Adulto Jovem , Índice de Gravidade de Doença , Neutrófilos/imunologia , Proteína C-Reativa/análise , Biomarcadores/sangue , Basófilos , Curva ROC , Adolescente
12.
Animal Model Exp Med ; 7(3): 234-258, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38863309

RESUMO

BACKGROUND: According to traditional Chinese medicine (TCM), drugs supplementing the vital energy, Qi, can eliminate tumors by restoring host immunity. The objective of this study is to investigate the underlying immune mechanisms of anti-tumor activity associated with Qi-supplementing herbs, specifically the paired use of Huangqi and Danggui. METHODS: Analysis of compatibility regularity was conducted to screen the combination of Qi-supplementing TCMs. Using the MTT assay and a transplanted tumor mice model, the anti-tumor effects of combination TCMs were investigated in vitro and in vivo. High content analysis and flow cytometry were then used to evaluate cellular immunity, followed by network pharmacology and molecular docking to dissect the significant active compounds and potential mechanisms. Finally, the anti-tumor activity and the mechanism of the active ingredients were verified by molecular experiments. RESULTS: There is an optimal combination of Huangqi and Danggui that, administered as an aqueous extract, can activate immunity to suppress tumor and is more effective than each drug on its own in vitro and in vivo. Based on network pharmacology analysis, PIK3R1 is the core target for the anti-tumor immunity activity of combined Huangqi and Danggui. Molecular docking analysis shows 6 components of the combined Danggui and Huangqi extract (quercetin, jaranol, isorhamnetin, kaempferol, calycosin, and suchilactone) that bind to PIK3R1. Jaranol is the most important component against breast cancer. The suchilactone/jaranol combination and, especially, the suchilactone/kaempferol combination are key for immunity enhancement and the anti-tumor effects of the extract. CONCLUSIONS: The combination of Huangqi and Danggui can activate immunity to suppress breast cancer and is more effective than the individual drugs alone.


Assuntos
Neoplasias da Mama , Medicamentos de Ervas Chinesas , Camundongos Endogâmicos BALB C , Simulação de Acoplamento Molecular , Medicamentos de Ervas Chinesas/farmacologia , Animais , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/imunologia , Camundongos , Humanos , Astragalus propinquus , Linhagem Celular Tumoral , Regulação para Cima/efeitos dos fármacos
13.
Clin Nutr ; 43(8): 1694-1701, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38879916

RESUMO

BACKGROUND & AIMS: Previous studies have shown that plant-rich dietary patterns, such as the Mediterranean diet, are associated with longer telomeres. However, no association has been found between vegetarian diet and telomere length. We hypothesized that the quality of plant-based diets plays an important role in telomere length. METHODS: Data were obtained from the National Health and Nutrition Examination Survey 1999-2002. Diet was assessed using a 24-h recall method. Plant-based diet quality was assessed using the overall plant-based diet index (PDI), healthy PDI (hPDI), and unhealthy PDI (uPDI). Telomere length was measured using quantitative PCR. Linear and ordinal logistic regression models were used to assess the association of PDIs with log-transformed telomere length and ordinal quintiles of telomere length in descending order, respectively. RESULTS: In both regression models, the overall PDI was not associated with telomere length. The hPDI was associated with longer telomere length [percentage change = 2.34%, 95% confidence interval (CI): 0.42%, 4.31%, Ptrend = 0.016; odds ratio (OR) = 0.81, 95% CI: 0.69, 0.95, Ptrend = 0.013]. However, uPDI was associated with shorter telomere length (percentage change = -3.17%, 95% CI: -5.65%, -0.62%, Ptrend = 0.017; OR = 1.25, 95% CI:1.03, 1.53, Ptrend = 0.014) and this inverse association was stronger in the non-Hispanic white population (Pinteraction = 0.001 in both regression models). CONCLUSIONS: A plant-based dietary pattern rich in healthy plant foods is associated with longer telomeres. However, plant-based dietary patterns rich in unhealthy plant-based foods are associated with shorter telomere lengths, especially in non-Hispanic white populations.


Assuntos
Dieta Vegetariana , Inquéritos Nutricionais , Telômero , Humanos , Dieta Vegetariana/estatística & dados numéricos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Dieta Saudável/estatística & dados numéricos , Dieta Saudável/métodos , Estudos Transversais , Dieta Mediterrânea/estatística & dados numéricos , Idoso , Dieta Baseada em Plantas
14.
Food Chem Toxicol ; 189: 114745, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38763499

RESUMO

Mycotoxins are toxic metabolites produced by fungal species, commonly exist in animal feeds, and pose a serious risk to human as well as animal health. But limited studies have focused on combined effects of no-observed adverse effect levels. In vivo study, 6 weeks old twenty-four mice were individually exposed to Deoxynivalenol (DON) at 0.1 mg/kg BW, Aflatoxin B1 (AFB1) at 0.01 mg/kg BW, and mixture of DON and AFB1 (0.1 mg/kg BW and 0.01 mg/kg BW, respectively) for 28 days. Then, DON at 0.5 µg/mL, AFB1 at 0.04 µg/mL, and mixtures of DON and AFB1 (0.5 µg/mL, 0.04 µg/mL, respectively) were applied to porcine alveolar macrophages (PAMs) in vitro study. Our in vivo results revealed that the combined no-observed adverse effect levels of DON and AFB1 administration decreased IgA and IgG levels in the serum, the splenic TNF-α, IFN-γ, IL-2 and IL-6 mRNA expression and T-lymphocyte subset levels (CD4+ and CD8+) in the spleen. Additionally, the combined administration increased caspase-3, caspase-9, Bax, Cyt-c, and decreased Bcl-2 protein expression. Taken together, the combined no-observed adverse effect levels of DON and AFB1 could induce immunosuppression, which may be related to apoptosis. This study provides new insights into the combined immune toxicity (DON and AFB1).


Assuntos
Aflatoxina B1 , Apoptose , Tricotecenos , Animais , Tricotecenos/toxicidade , Aflatoxina B1/toxicidade , Apoptose/efeitos dos fármacos , Camundongos , Suínos , Macrófagos Alveolares/efeitos dos fármacos , Macrófagos Alveolares/metabolismo , Baço/efeitos dos fármacos , Masculino , Citocinas/metabolismo , Imunoglobulina A , Feminino
15.
Shanghai Kou Qiang Yi Xue ; 33(1): 106-112, 2024 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-38583035

RESUMO

PURPOSE: To understand the current situation and needs of occlusal function exercise in patients with mandibular defects after oral tumor surgery. METHODS: Twenty-seven patients with mandibular defects after oral tumor surgery were interviewed semi-structurally by objective sampling method. The three-level coding system of rooting theory was used for reference, and Nvivo11 qualitative analysis software was used for bottom-up coding analysis. RESULTS: The current situation and needs of occlusal function exercise in patients with mandibular defects can be summarized into five themes, the impact of mandibular defects on patients, lack of knowledge related to occlusal function exercise, demand for content of occlusal function exercise (looking forward to professional health guidance), demand for education methods of occlusal function exercise(expecting diversified education methods and various obstacles to reduce patient compliance). CONCLUSIONS: To establish a unified and standardized program of occlusal function exercise, doctors and nurses should pay attention to various obstacles of patients, adjust the psychological state of patients, and maximize the compliance of patients with occlusal function exercise.


Assuntos
Mandíbula , Neoplasias Bucais , Humanos , Software
16.
In Vivo ; 38(3): 1133-1142, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38688635

RESUMO

BACKGROUND/AIM: Cancer-induced bone pain (CIBP) is one of the most common symptoms of bone metastasis of tumor cells. The hypothalamus may play a pivotal role in the regulation of CIBP. However, little is known about the exact mechanisms. MATERIALS AND METHODS: First, we established a CIBP model to explore the relationship among hypothalamic ghrelin, NPY and CIBP. Then, we exogenously administered NPY and NPY receptor antagonists to investigate whether hypothalamic NPY exerted an antinociceptive effect through binding to NPY receptors. Finally, we exogenously administered ghrelin to investigate whether ghrelin alleviated CIBP by inducing the production of hypothalamic NPY through the AMPK-mTOR pathway. Body weight, food intake and behavioral indicators of CIBP were measured every 3 days. Hypothalamic ghrelin, NPY and the AMPK-mTOR pathway were also measured. RESULTS: The expression of hypothalamic ghrelin and NPY was simultaneously decreased in cancer-bearing rats, which was accompanied by CIBP. Intracerebroventricular (i.c.v.) administration of NPY significantly alleviated CIBP in the short term. The antinociceptive effect of NPY was reversed with the i.c.v. administration of the Y1R and Y2R antagonists. The administration of ghrelin activated the AMPK-mTOR pathway and induced hypothalamic NPY production to alleviate CIBP. This effect of ghrelin on NPY and antinociception was reversed with the administration of a GHS-R1α antagonist. CONCLUSION: Ghrelin could induce the production of hypothalamic NPY through the AMPK-mTOR pathway to alleviate CIBP, which can provide a novel therapeutic mechanism for CIBP.


Assuntos
Proteínas Quinases Ativadas por AMP , Neoplasias Ósseas , Dor do Câncer , Modelos Animais de Doenças , Grelina , Hipotálamo , Neuropeptídeo Y , Transdução de Sinais , Serina-Treonina Quinases TOR , Animais , Grelina/farmacologia , Hipotálamo/metabolismo , Hipotálamo/efeitos dos fármacos , Serina-Treonina Quinases TOR/metabolismo , Neuropeptídeo Y/metabolismo , Ratos , Dor do Câncer/etiologia , Dor do Câncer/tratamento farmacológico , Dor do Câncer/metabolismo , Transdução de Sinais/efeitos dos fármacos , Proteínas Quinases Ativadas por AMP/metabolismo , Neoplasias Ósseas/metabolismo , Neoplasias Ósseas/complicações , Neoplasias Ósseas/tratamento farmacológico , Masculino , Linhagem Celular Tumoral , Feminino
17.
Lung India ; 41(3): 218-220, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38687234
18.
Altern Ther Health Med ; 30(5): 123-129, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38518133

RESUMO

Objective: Due to the escalating global prevalence of allergic rhinitis (AR) and its status as an independent risk factor for asthma, timely and effective control of AR is crucial. Achieving this often involves the accurate assessment of AR. Currently, the Control of Allergic Rhinitis and Asthma Test (CARAT) is widely used as an assessment tool, but its measurement effectiveness in Chinese AR patients remains unclear. Therefore, this study aims to evaluate the reliability and validity of the Chinese version of the CARAT10 scale (CARAT10-C) and analyze its application value in the assessment of allergic rhinitis and asthma control trials. Methods: The study enrolled 130 patients with AR from the Ear, Nose, and Throat (ENT) outpatient department of a comprehensive teaching hospital from March to May 2022 as participants. The reliability and validity of the CARAT10-C scale were assessed using Cronbach's alpha coefficient (CAC), Kaiser-Meyer-Olkin (KMO), and Bartlett's sphericity test. Additionally, the study analyzed the effectiveness of the CARAT10-C scale in its application within the Control of Allergic Rhinitis and Asthma Test (CARAT). Results: The Cronbach's alpha coefficient ranges between 0 and 1, with higher values indicating better reliability. Significant differences in exploratory factor analysis suggest good validity. The Cronbach's alpha coefficient of the CARAT10-C scale was 0.806. Exploratory factor analysis revealed that the eigenvalues of Component 1 (3.851) and Component 2 (2.193) were both greater than 1, with a cumulative variance contribution rate (CVCR) of 60.436%. Items 6-10 were primarily loaded on Component 1 (Asthma), while items 1-4 were mainly influenced by Component 2 (AR), with loading ranges of 0.508-0.874, all significant at P < .001. The composite reliability (CAC) of the CARAT10-C scale was 0.806, exceeding 0.8, indicating high reliability. Component 1 had a CAC of 0.834, and Component 2 had a CACs of 0.807, both exceeding 0.8, indicating high reliability for both components. Conclusion: The CARAT10-C scale demonstrates good reliability and validity in the preliminary assessment of AR. It holds potential value in the evaluation and management of AR in China, although the specific application effects still require further investigation.


Assuntos
Asma , Rinite Alérgica , Humanos , Rinite Alérgica/diagnóstico , Masculino , Feminino , Adulto , Reprodutibilidade dos Testes , Asma/diagnóstico , Pessoa de Meia-Idade , China , Adulto Jovem , Inquéritos e Questionários/normas , Traduções , Adolescente
19.
J Stomatol Oral Maxillofac Surg ; 125(6): 101796, 2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38331216

RESUMO

Oral cancer is a significant public health issue worldwide. Although its treatment methods effectively control tumor growth, they can lead to complications, including Trismus, severely affecting patients' quality of life. The practice standards for mouth opening exercises, a rehabilitative method to prevent and treat Trismus, are not yet clear. Therefore, this article aims to review the research progress of mouth opening exercises in the rehabilitation of Trismus post oral cancer treatment, providing a scientific and effective rehabilitation plan for oral cancer patients to improve their quality of life.

20.
Anal Chim Acta ; 1294: 342281, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38336409

RESUMO

The pH value plays a vital role in many biological and chemical reactions. In this work, the fiber-optic chemical pH sensors were fabricated based on carboxyl ZnCdSe/ZnS quantum dots (QDs) and tapered optical fiber. The photoluminescence (PL) intensity of QDs is pH-dependence because protonation and deprotonation can affect the process of electron-hole recombination. The evanescent wave of tapered optical fiber was used as excitation source in the process of PL. To obtain higher sensitivity, the end faces of fiber were optimized for cone region. By lengthening the cone region and shrinking the end diameter of optical fiber, evanescent wave was enhanced and the excitation times of QDs were increased, which improved the PL intensity and the sensitivity of the sensor. The sensitivity of sensor can reach as high as 0.139/pH in the range of pH 6.00-9.01. The surface functional modification was adopted to prepare sensing films. The carboxyl groups on the QDs ligands are chemically bonded to the fiber surface, which is good for response time (40 s) and stability (decreased 0.9 % for 5 min). These results demonstrated that ZnCdSe/ZnS QDs-based fiber-optic chemical pH sensors are promising approach in rapid and precise pH detection.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...