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1.
Psychiatry Investig ; 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39219380

RESUMEN

OBJECTIVE: To explore the linear associations between social support, coping strategies, depression, anxiety, and cognitive function among people with type 2 diabetes mellitus (T2DM) using a path-analytic method. METHODS: This cross-sectional study enrolled 496 individuals hospitalized due to T2DM. Well-trained investigators conducted face-to-face interviews with the participants using the Social Support Rating Scale, the Chinese version of Medical Coping Modes Questionnaire, the Hospital Anxiety and Depression scale, and the Mini Mental State Examination to measure social support (including objective support, subjective support, and support utilization), coping strategies (including confrontation, avoidance, and acceptance-resignation), depression/anxiety, and cognitive function, respectively. A path analysis was used to elucidate the linear associations between social support, coping strategies, depression, anxiety, and cognitive function. RESULTS: In the final path model with satisfactory model fit, objective support was found to be associated with cognitive function not only directly but also indirectly through confrontation coping and depression, and acceptance-resignation coping and depression/anxiety. Further, subjective support was found to be associated with cognitive function indirectly through depression/anxiety, as well as serially through acceptance-resignation coping and depression/anxiety. Support utilization was found to be associated with cognitive function indirectly through confrontation coping and depression, as well as through acceptance-resignation coping and depression/anxiety. CONCLUSION: Social support, coping strategies, depression, and anxiety were associated with cognitive function among people with T2DM, and these associations were best explained by a serial mediation model from social support, coping strategies, and depression and anxiety to cognitive function.

2.
Arch Gerontol Geriatr ; 128: 105619, 2024 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-39243535

RESUMEN

BACKGROUND: Atrial fibrillation (AF) is associated with an increased risk of cognitive impairment. Therefore, exploring factors which may be associated with cognitive impairment is important. Correspondingly, this study aimed to systematically evaluate factors associated with cognitive impairment in AF patients by synthesizing relevant evidence. METHODS: A database search of the PubMed, Embase, Cochrane Library, Web of Science, CBM, CNKI, Wanfang, and VIP databases was conducted from inception until December 21, 2023. The effect size was expressed as a combined odds ratio (OR) and 95 % confidence interval (95 % CI). The heterogeneity was qualitatively analyzed by Cochran's Q test and quantified by the I2 statistic. RESULTS: A total of 7,128 studies were identified from the 8 databases, and 39 studies of 3,491,423 participants were included. A meta-analysis was performed on 19 influencing factors. Advanced age (OR=1.38, 95 % CI: 1.11-1.71), female sex (OR=2.19, 95 % CI: 1.18-4.06), smoking (OR=2.44, 95 % CI: 1.24-4.80), hypertension (OR=1.61, 95 % CI: 1.27-2.03), diabetes (OR=1.42, 95 % CI: 1.20-1.67), and hearing impairment (OR=1.37, 95 % CI: 1.05-1.81) were risk factors for cognitive impairment. A higher education level (OR=0.57, 95 % CI: 0.46-0.72), oral anticoagulants (OR=0.61, 95 % CI: 0.48-0.78), novel oral anticoagulants (OR=0.63, 95 % CI: 0.54-0.73), warfarin (OR=0.55, 95 % CI: 0.39-0.79), novel oral anticoagulants relative to warfarin (OR=0.88, 95 % CI: 0.81-0.97), catheter ablation (OR=0.74, 95 % CI: 0.58-0.94) and exercise (OR=0.66, 95 % CI: 0.61-0.72) were protective factors for cognitive impairment. CONCLUSIONS: Age, sex, education level, smoking, exercise, hypertension, diabetes, hearing impairment, anticoagulation therapy, and catheter ablation were associated with cognitive impairment in AF patients.

3.
Artículo en Inglés | MEDLINE | ID: mdl-39158955

RESUMEN

PURPOSE: This observational study aimed to investigate associations between dietary live microbe intake and mortality, as well as biological aging. METHODS: Adults from the 1999-2018 National Health and Nutrition Examination Survey were categorized into low, medium, and high dietary live microbe groups. Foods with medium and high live microbe content were aggregated into a medium-high consumption category. The outcomes included all-cause, cardiovascular, and cancer mortality, along with biological age (BA) acceleration assessed by the Klemera-Doubal method (KDM) and PhenoAge. Multiple regression analyses and mediation analyses were conducted to assess associations, adjusting for potential confounders. RESULTS: A total of 34,133 adults were included in our analyses. Over an average follow-up period of 9.92 years, 5,462 deaths occurred. In multivariate adjusted models, every 100 grams of medium-high group foods consumed was associated with reduced all-cause mortality (hazard ratio [HR] 0.94, 95% confidence interval [CI] 0.91 to 0.97, P < 0.001) and cardiovascular mortality (HR 0.91, 95% CI 0.86 to 0.96, P < 0.001), but not with cancer mortality (HR 1.01, 95% CI 0.95 to 1.07, P = 0.768). Every 100 grams medium-high group foods consumption was associated with decreased KDM BA acceleration (fully adjusted regression coefficient -0.09, 95% CI -0.15 to -0.04, P = 0.001) and PhenoAge acceleration (fully adjusted regression coefficient -0.07, 95% CI -0.11 to -0.03, P < 0.001). Mediation analysis showed that BA acceleration partially mediated live microbes-mortality associations. CONCLUSION: Our results suggest that higher dietary live microbe intake is associated with lower mortality risk and slower biological aging. However, further research is needed to verify these findings.

4.
BMC Public Health ; 24(1): 2344, 2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39210286

RESUMEN

BACKGROUND: Unintentional injuries is the leading cause of death in children aged 6-18 in China. Previous studies on the association between the guardians' educational levels and unintentional injuries in children have been inconclusive, and it remains unclear among the Chinese population. Therefore, this study aimed to identify the association between guardians' educational levels and unintentional injuries in children aged 6-18 in Shenzhen, China. METHODS: This cross-sectional study enrolled 9,903 children aged 6-18 in Shenzhen in 2020 using a multistage cluster sampling method. Information on the children and guardians were collected, and unintentional injuries in the past year was examined by using two nested questions. Logistic regression analyses were used to test the association between the guardians' educational levels and unintentional injuries in children aged 6-18, and the crude odds ratios (ORs) and adjusted ORs with 95% confidence intervals (95% CI) were calculated. RESULTS: 275 of the 9,903 children reported experiencing at least one unintentional injuries in the past year, and the weighted incidence of unintentional injuries was 6.3% (95% CI: 5.8-6.8%) in children aged 6-18 in Shenzhen, China. The incidence of unintentional injuries differed significantly in the guardians' education levels (P < 0.05). After adjustment for the children's variables, multiple binary logistic regression analysis showed that compared to children whose guardians' educational levels were low, children whose guardians' educational levels were high (adjusted OR = 0.57, 95% CI: 0.37-0.87) and medium (adjusted OR = 0.56, 95% CI: 0.39-0.81) had a lower odds of unintentional injuries. Similar results were also observed when further adjustment for both the children's and guardians' variables. CONCLUSION: The overall incidence of unintentional injuries in children aged 6-18 in Shenzhen was low, and it was associated with the guardians' educational levels. Children whose guardians' educational levels were low should be given special concern to prevent unintentional injuries, and it is suggested to reduce the incidence of unintentional injuries in children by improving the guardians' educational levels.


Asunto(s)
Lesiones Accidentales , Escolaridad , Tutores Legales , Humanos , China/epidemiología , Niño , Adolescente , Masculino , Femenino , Estudios Transversales , Lesiones Accidentales/epidemiología , Heridas y Lesiones/epidemiología , Incidencia
5.
J Cell Mol Med ; 28(14): e18539, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39046364

RESUMEN

Chronic myeloid leukaemia (CML) is a haematological malignancy characterized by the constitutive tyrosine kinase activity of the BCR-ABL1 fusion protein. Flumatinib, a second-generation tyrosine kinase inhibitor, has exhibited superior clinical efficacy compared to its precursor, imatinib. However, with increased clinical use, resistance to flumatinib has emerged as a significant challenge. To investigate the mechanisms of flumatinib resistance in CML, we induced the human CML cell line K562 using a flumatinib concentration gradient method in vitro, successfully establishing a flumatinib-resistant K562/FLM cell line. This cell line exhibited cross-resistance to imatinib and doxorubicin, but remained sensitive to the antiparasitic agent ivermectin, which possesses antitumoural effects. Through cellular experimentation, we explored the resistance mechanisms, which indicated that K562/FLM cells evade flumatinib cytotoxicity by enhancing autophagy, increasing the expression of membrane transport proteins, particularly P-glycoprotein, ABCC1 and ABCC4, as well as enhancing phosphorylation of p-EGFR, p-ERK and p-STAT3 proteins. Moreover, it was found that ivermectin effectively suppressed the expression of autophagy and transport proteins in K562/FLM cells, reduced the activity of the aforementioned phosphoproteins, and promoted apoptotic cell death. Collectively, the increased autophagy, higher expression of drug-efflux proteins and hyperactivation of the EGFR/ERK/STAT3 signalling pathway were identified as pivotal elements promoting resistance to flumatinib. The significant effects of ivermectin might offer a novel therapeutic strategy to overcome flumatinib resistance and optimize the treatment outcomes of CML.


Asunto(s)
Resistencia a Antineoplásicos , Ivermectina , Leucemia Mielógena Crónica BCR-ABL Positiva , Humanos , Leucemia Mielógena Crónica BCR-ABL Positiva/tratamiento farmacológico , Leucemia Mielógena Crónica BCR-ABL Positiva/patología , Leucemia Mielógena Crónica BCR-ABL Positiva/genética , Resistencia a Antineoplásicos/efectos de los fármacos , Ivermectina/farmacología , Células K562 , Autofagia/efectos de los fármacos , Apoptosis/efectos de los fármacos , Inhibidores de Proteínas Quinasas/farmacología , Inhibidores de Proteínas Quinasas/uso terapéutico , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Mesilato de Imatinib/farmacología , Receptores ErbB/metabolismo , Receptores ErbB/antagonistas & inhibidores , Línea Celular Tumoral
6.
Anal Chem ; 96(24): 10102-10110, 2024 06 18.
Artículo en Inglés | MEDLINE | ID: mdl-38831537

RESUMEN

Owing to the limitations of dual-signal luminescent materials and coreactants, constructing a ratiometric electrochemiluminescence (ECL) biosensor based on a single luminophore is a huge challenge. This work developed an excellent zirconium metal-organic framework (MOF) Zr-TBAPY as a single ECL luminophore, which simultaneously exhibited cathodic and anodic ECL without any additional coreactants. First, Zr-TBAPY was successfully prepared by a solvothermal method with 1,3,6,8-tetra(4-carboxyphenyl)pyrene (TBAPY) as the organic ligand and Zr4+ cluster as the metal node. The exploration of ECL mechanisms confirmed that the cathodic ECL of Zr-TBAPY originated from the pathway of reactive oxygen species (ROS) as the cathodic coreactant, which is generated by dissolved oxygen (O2), while the anodic ECL stemmed from the pathway of generated Zr-TBAPY radical itself as the anodic coreactant. Besides, N,N-diethylethylenediamine (DEDA) was developed as a regulator to ECL signals, which quenched the cathodic ECL and enhanced the anodic ECL, and the specific mechanisms of its dual action were also investigated. DEDA can act as the anodic coreactant while consuming the cathodic coreactant ROS. Therefore, the coreactant-free ratiometric ECL biosensor was skillfully constructed by combining the regulatory role of DEDA with the signal amplification reaction of catalytic hairpin assembly (CHA). The ECL biosensor realized the ultrasensitive ratio detection of HIV DNA. The linear range was 1 fM to 100 pM, and the limit of detection (LOD) was as low as 550 aM. The outstanding characteristic of Zr-TBAPY provided new thoughts for the development of ECL materials and developed a new way of fabricating the coreactant-free and single-luminophore ratiometric ECL platform.


Asunto(s)
Técnicas Biosensibles , ADN Viral , Técnicas Electroquímicas , Mediciones Luminiscentes , Estructuras Metalorgánicas , Circonio , Circonio/química , Estructuras Metalorgánicas/química , Técnicas Electroquímicas/métodos , Mediciones Luminiscentes/métodos , ADN Viral/análisis , Técnicas Biosensibles/métodos , Límite de Detección , Humanos , VIH/aislamiento & purificación
7.
Reproduction ; 168(2)2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38912966

RESUMEN

In brief: This study reveals that orthotopic transplantation of 3D hUC-MSC spheroids is more effective than monolayer-cultured hUC-MSCs in improving POF and distinctly reducing oxidative stress through the paracrine effect, thereby preventing apoptosis and autophagy of GCs. Abstract: Premature ovarian failure (POF) is a common reproductive disease in women younger than 40 years old, and studies have demonstrated that the application of human umbilical cord mesenchymal stem cells (hUC-MSCs) is a promising therapy strategy for POF. Given the previously established therapeutic advantages of 3D MSC spheroids, and to evaluate their effectiveness, both 3D hUC-MSC spheroids and monolayer-cultured hUC-MSCs were employed to treat a cyclophosphamide-induced POF rat model through orthotopic transplantation. The effects of these two forms on POF were subsequently assessed by examining apoptosis, autophagy, and oxidative damage in ovarian granulosa cells (GCs). The results indicated that hUC-MSC spheroids exhibited superior treatment effects on resisting autophagy, apoptosis, and oxidative damage in GCs compared to monolayer-cultured hUC-MSCs. To further elucidate the impact of hUC-MSC spheroids in vitro, a H2O2-induced KGN cells model was established and co-cultured with both forms of hUC-MSCs. As expected, the hUC-MSC spheroids also exhibited superior effects in resisting apoptosis and autophagy caused by oxidative damage. Therefore, this study demonstrates that 3D hUC-MSC spheroids have potential advantages in POF therapy; however, the detailed mechanisms need to be further investigated. Furthermore, this study will provide a reference for the clinical treatment strategy of POF.


Asunto(s)
Apoptosis , Autofagia , Modelos Animales de Enfermedad , Células de la Granulosa , Células Madre Mesenquimatosas , Estrés Oxidativo , Insuficiencia Ovárica Primaria , Esferoides Celulares , Femenino , Animales , Ratas , Células de la Granulosa/patología , Células de la Granulosa/citología , Células Madre Mesenquimatosas/metabolismo , Células Madre Mesenquimatosas/citología , Insuficiencia Ovárica Primaria/patología , Insuficiencia Ovárica Primaria/terapia , Insuficiencia Ovárica Primaria/inducido químicamente , Humanos , Trasplante de Células Madre Mesenquimatosas , Ratas Sprague-Dawley , Cordón Umbilical/citología , Células Cultivadas
8.
Environ Geochem Health ; 46(6): 188, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38696021

RESUMEN

To investigate the associations of physical activity (PA), low-level air pollution, and interaction on cardiovascular diseases (CVD) incidence based on the UK Biobank. PA was measured by the International Physical Activity Questionnaire and five air pollutants were estimated using Land Use Regression. All association estimates were based on Cox regression. Dose-response relationship was explored by restricted cubic spline, while multiplicative and additive interaction were examined by Pinteraction and relative excess risk due to interaction (RERI). As deviating proportional hazards assumption, we analyzed data as follow-up < 4 years and ≥ 4 years, separately. PA with 1000-4000 Metabolic Equivalent Task (MET) min/week showed the strongest protective impact on CVD incidence, while only low-level nitrogen dioxides (NO2) showed negative impact among five air pollutants and was considered for further analysis. Multiplicative interaction between PA and NO2 was observed during ≥ 4 years follow-up (Pinteraction = 0.049) while not during < 4 years (Pinteraction = 0.290). Positive additive interactions were found for high PA and low NO2 (< 20 µg/m3) group (RERI: 0.07, 95% confidence intervals: 0.02-0.11) during < 4 years, and for moderate PA with NO2 at 40- µg/m3 (0.07, 0.02-0.13) and < 20 µg/m3 (0.07, 0.02-0.12), while high PA showed similar results with NO2 at 40-, 20- and < 20 µg/m3 during ≥ 4 years. PA about 1000-4000 METs min/week showed the lowest CVD risk. Possibility of interaction with PA and NO2 is more likely to present with the increase in follow-up duration. We call for the optimal thresholds of PA, and exploring interaction thoroughly by considering types of PA.


Asunto(s)
Contaminación del Aire , Enfermedades Cardiovasculares , Ejercicio Físico , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Contaminación del Aire/efectos adversos , Enfermedades Cardiovasculares/epidemiología , Exposición a Riesgos Ambientales/efectos adversos , Incidencia , Dióxido de Nitrógeno/análisis , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Biobanco del Reino Unido , Reino Unido/epidemiología
9.
Mikrochim Acta ; 191(6): 317, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38724862

RESUMEN

A simple, sensitive dual-emission probe was developed for the detection of phosphate (Pi). The probe Tb-BTB/DPA was synthesized by mixing dual-ligand, 1,3,5-tri(4-carboxyphenyl) benzene (H3BTB) and dipicolinic acid (DPA), with metal ions Tb3+ in ethanol-water solution at 40℃ for 2 h. Tb-BTB/DPA exhibits two emission peaks, the emission at 362 nm is attributed to H3BTB, an energy transfer between Tb3+ nodes, and DPA further enhances the fluorescence of Tb3+ at 544 nm. Pi competes with ligand H3BTB to coordinate Tb3+, resulting in partial collapse of the Tb-BTB/DPA structure and interrupting the electron transfer between H3BTB and Tb3+. Therefore, the emission at 362 nm is enhanced, while the emission at 544 nm is unchanged, and a ratiometric fluorescence method is developed to detect Pi. Tb-BTB/DPA exhibits good linearity within the Pi concentration range (0.1-50 µmol/L), and the detection limit was 25.8 nmol/L. This study provides a new way to prepare probes with dual emission sensing properties.

10.
Ecotoxicol Environ Saf ; 276: 116319, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38615642

RESUMEN

Di-hexyl phthalate (2-ethylhexyl) (DEHP) has been confirmed to cause female reproductive toxicity in humans and model animals by affecting the survival of ovarian granulosa cells (GCs), but the interrelationships between DEHP's on autophagy, apoptosis, and inflammation in GCs are not clear. Our previous study demonstrated that DEHP exposure resulted in the disturbance of intestinal flora associated with serum LPS release, which in turn led to impaired ovarian function. LPS has also been shown to determine cell fate by modulating cellular autophagy, apoptosis, and inflammation. Therefore, this study investigated the role and link between LPS and autophagy, apoptosis, and inflammation of GCs in DEHP-induced ovarian injury. Here, we constructed an in vivo injury model by continuous gavage of 0-1500 mg/kg of DEHP in female mice for 30 days and an in vitro injury model by treatment of human ovarian granulosa cells (KGN) cells with mono-2- ethylhexyl ester (MEHP, an active metabolite of DEHP in vivo). In addition, the expression of relevant pathway molecules was detected by immunohistochemistry, immunofluorescence, qRT-PCR, and Western blotting after the addition of the autophagy inhibitor 3-methyladenine (3-MA), the apoptosis inhibitor Z-VAD- FMK and the NF-κB inhibitor BAY11-7082. The current study found that autophagy and apoptosis were significantly activated in GCs of DEHP-induced atretic follicles in vivo and found that MEHP-induced KGN cells autophagy and apoptosis were independent and potentially cytotoxic of each other in vitro. Further studies confirmed that DEHP exposure resulted in LPS release from the intestinal tract and entering the ovary, thereby participating in DEHP-induced inflammation of GCs. In addition, we found that exogenous LPS synergized with MEHP could activate the NF-κB signaling pathway to induce inflammation and apoptosis of GCs in a relatively prolonged exposure condition. Meanwhile, inhibition of inflammatory activation could rescue apoptosis and estrogen secretion function of GCs induced by MEHP combined with LPS. These results indicated that the increased LPS influenced by DEHP might cooperate with MEHP to induce inflammatory apoptosis of GCs, an important cause of ovarian injury in mice.


Asunto(s)
Apoptosis , Autofagia , Dietilhexil Ftalato , Dietilhexil Ftalato/análogos & derivados , Células de la Granulosa , Inflamación , Lipopolisacáridos , Femenino , Animales , Dietilhexil Ftalato/toxicidad , Autofagia/efectos de los fármacos , Células de la Granulosa/efectos de los fármacos , Células de la Granulosa/patología , Lipopolisacáridos/toxicidad , Apoptosis/efectos de los fármacos , Ratones , Inflamación/inducido químicamente , Inflamación/patología , Reproducción/efectos de los fármacos , Humanos
11.
Free Radic Biol Med ; 220: 1-14, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38677487

RESUMEN

Primary ovarian insufficiency (POI) in younger women (under 40) manifests as irregular periods, high follicle-stimulating hormone (FSH), and low estradiol (E2), often triggered by chemotherapy. Though mesenchymal stem cell (MSC) therapy shows promise in treating POI, its exact mechanism remains unclear. This study reveals that human umbilical cord-derived MSCs (hUC-MSCs) can protect ovarian granulosa cells (GCs) from cyclophosphamide (CTX)-induced ferroptosis, a form of cell death driven by iron accumulation. CTX, commonly used to induce POI animal model, triggered ferroptosis in GCs, while hUC-MSCs treatment mitigated this effect, both in vivo and in vitro. Further investigations using ferroptosis and autophagy inhibitors suggest that hUC-MSCs act by suppressing ferroptosis in GCs. Interestingly, hUC-MSCs activate a protective antioxidant pathway in GCs via NRF2, a stress-response regulator. Overall, our findings suggest that hUC-MSCs improve ovarian function in CTX-induced POI by reducing ferroptosis in GCs. This study not only clarifies the mechanism behind the benefits of hUC-MSCs but also strengthens the case for their clinical use in treating POI. Additionally, it opens up a new avenue for protecting ovaries from chemotherapy-induced damage by regulating ferroptosis.


Asunto(s)
Autofagia , Ciclofosfamida , Modelos Animales de Enfermedad , Ferroptosis , Células de la Granulosa , Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Insuficiencia Ovárica Primaria , Cordón Umbilical , Femenino , Insuficiencia Ovárica Primaria/inducido químicamente , Insuficiencia Ovárica Primaria/terapia , Insuficiencia Ovárica Primaria/metabolismo , Insuficiencia Ovárica Primaria/patología , Animales , Ferroptosis/efectos de los fármacos , Células de la Granulosa/metabolismo , Células de la Granulosa/efectos de los fármacos , Células de la Granulosa/patología , Humanos , Ratones , Células Madre Mesenquimatosas/metabolismo , Cordón Umbilical/citología , Ciclofosfamida/efectos adversos , Trasplante de Células Madre Mesenquimatosas/métodos , Autofagia/efectos de los fármacos , Factor 2 Relacionado con NF-E2/metabolismo , Factor 2 Relacionado con NF-E2/genética , Ferritinas/metabolismo
12.
J Zhejiang Univ Sci B ; 25(4): 307-323, 2024 Apr 15.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-38584093

RESUMEN

Microplastics (MPs) and nanoplastics (NPs) have become hazardous materials due to the massive amount of plastic waste and disposable masks, but their specific health effects remain uncertain. In this study, fluorescence-labeled polystyrene NPs (PS-NPs) were injected into the circulatory systems of mice to determine the distribution and potential toxic effects of NPs in vivo. Interestingly, whole-body imaging found that PS-NPs accumulated in the testes of mice. Therefore, the toxic effects of PS-NPs on the reproduction systems and the spermatocytes cell line of male mice, and their mechanisms, were investigated. After oral exposure to PS-NPs, their spermatogenesis was affected and the spermatogenic cells were damaged. The spermatocyte cell line GC-2 was exposed to PS-NPs and analyzed using RNA sequencing (RNA-seq) to determine the toxic mechanisms; a ferroptosis pathway was found after PS-NP exposure. The phenomena and indicators of ferroptosis were then determined and verified by ferroptosis inhibitor ferrostatin-1 (Fer-1), and it was also found that nuclear factor erythroid 2-related factor 2 (Nrf2) played an important role in spermatogenic cell ferroptosis induced by PS-NPs. Finally, it was confirmed in vivo that this mechanism of Nrf2 played a protective role in PS-NPs-induced male reproductive toxicity. This study demonstrated that PS-NPs induce male reproductive dysfunction in mice by causing spermatogenic cell ferroptosis dependent on Nrf2.


Asunto(s)
Ferroptosis , Nanopartículas , Contaminantes Químicos del Agua , Animales , Masculino , Ratones , Microplásticos , Factor 2 Relacionado con NF-E2 , Plásticos/toxicidad , Poliestirenos/toxicidad , Reproducción
13.
Brain Behav ; 14(3): e3456, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38450963

RESUMEN

BACKGROUND: As the population ages, mild cognitive impairment (MCI) and type 2 diabetes mellitus (T2DM) become common conditions that often coexist. Evidence has shown that MCI could lead to reduced treatment compliance, medication management, and self-care ability in T2DM patients. Therefore, early identification of those with increased risk of MCI is crucial from a preventive perspective. Given the growing utilization of decision trees in prediction of health-related outcomes, this study aimed to identify MCI in T2DM patients using the decision tree approach. METHODS: This hospital-based case-control study was performed in the Endocrinology Department of Xiangya Hospital affiliated to Central South University between March 2021 and December 2022. MCI was defined based on the Petersen criteria. Demographic characteristics, lifestyle factors, and T2DM-related information were collected. The study sample was randomly divided into the training and validation sets in a 7:3 ratio. Univariate and multivariate analyses were performed, and a decision tree model was established using the chi-square automatic interaction detection (CHAID) algorithm to identify key predictor variables associated with MCI. The area under the curve (AUC) value was used to evaluate the performance of the established decision tree model, and the performance of multivariate regression model was also evaluated for comparison. RESULTS: A total of 1001 participants (705 in the training set and 296 in the validation set) were included in this study. The mean age of participants in the training and validation sets was 60.2  ±  10.3 and 60.4  ±  9.5 years, respectively. There were no significant differences in the characteristics between the training and validation sets (p > .05). The CHAID decision tree analysis identified six key predictor variables associated with MCI, including age, educational level, household income, regular physical activity, diabetic nephropathy, and diabetic retinopathy. The established decision tree model had 15 nodes composed of 4 layers, and age is the most significant predictor variable. It performed well (AUC = .75 [95% confidence interval (CI): .71-.78] and .67 [95% CI: .61-.74] in the training and validation sets, respectively), was internally validated, and had comparable predictive value compared to the multivariate logistic regression model (AUC = .76 [95% CI: .72-.80] and .69 [95% CI: .62-.75] in the training and validation sets, respectively). CONCLUSION: The established decision tree model based on age, educational level, household income, regular physical activity, diabetic nephropathy, and diabetic retinopathy performed well with comparable predictive value compared to the multivariate logistic regression model and was internally validated. Due to its superior classification accuracy and simple presentation as well as interpretation of collected data, the decision tree model is more recommended for the prediction of MCI in T2DM patients in clinical practice.


Asunto(s)
Disfunción Cognitiva , Diabetes Mellitus Tipo 2 , Nefropatías Diabéticas , Retinopatía Diabética , Humanos , Persona de Mediana Edad , Anciano , Estudios de Casos y Controles , Diabetes Mellitus Tipo 2/complicaciones , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/etiología , Árboles de Decisión
14.
J Appl Gerontol ; 43(8): 1042-1051, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38488166

RESUMEN

To develop and validate scales for reliably assessing dementia and urinary incontinence knowledge of older adults in the community. Items were generated through a literature review, refined through a Delphi study (n = 19), and then revised through a pilot study (n = 29). Item analysis and exploratory factor analysis were applied to finalize the scales (n = 244). Construct validity, reliability, and acceptability were evaluated (n = 243). The two knowledge assessment scales for dementia and urinary incontinence, respectively, comprised 12 items and 8 items. Model fit indicators of both met the criteria of confirmatory factor analysis. Cronbach's α were .82 and .70, respectively. Completion ratio and completion time of the two scales was 83.51% and 4.22 ± 1.90 minutes. The knowledge assessment scales for dementia and urinary incontinence with satisfactory validity, reliability, and acceptability, could be served as valid tools for disease prevention and management among older adults in the community.


Asunto(s)
Demencia , Incontinencia Urinaria , Humanos , Incontinencia Urinaria/diagnóstico , Demencia/diagnóstico , Anciano , Femenino , Reproducibilidad de los Resultados , Masculino , Encuestas y Cuestionarios/normas , Anciano de 80 o más Años , Conocimientos, Actitudes y Práctica en Salud , Psicometría , Técnica Delphi , Análisis Factorial , Proyectos Piloto , Vida Independiente
15.
BMJ Open ; 14(2): e078146, 2024 Feb 26.
Artículo en Inglés | MEDLINE | ID: mdl-38413148

RESUMEN

OBJECTIVES: Type 2 diabetes mellitus (T2DM) is a serious public health issue. Compared with the general population, patients with T2DM have a higher risk of poor sleep quality, which could ultimately result in poor prognosis. Therefore, this study aimed to evaluate sleep quality and its associated factors among patients with T2DM in Hunan, China. DESIGN: This was a cross-sectional study. SETTING: A tertiary hospital in Hunan, China. PARTICIPANTS: Patients with T2DM hospitalised at the Endocrinology Department were consecutively enrolled between March 2021 and December 2022. Sociodemographic characteristics, lifestyle factors and T2DM-related information were collected retrospectively. PRIMARY AND SECONDARY OUTCOME MEASURES: Sleep quality was evaluated using the Pittsburgh Sleep Quality Index, with a cut-off value of >7 suggesting poor sleep quality. Multivariate logistic regression analysis was used to determine factors associated with poor sleep quality. RESULTS: Of the 1039 participants included, 1001 provided complete data. The mean age of the study sample was 60.24±10.09 years, and 40.5% (95% CI 37.5% to 43.5%) of patients had poor sleep quality. Multivariate logistic regression analysis showed that female sex (adjusted OR (aOR) 1.70, 95% CI 1.25 to 2.29), unmarried status (aOR 1.72, 95% CI 1.05 to 2.83), diabetic retinopathy (aOR 1.38, 95% CI 1.04 to 1.83), diabetic foot (aOR 1.80, 95% CI 1.11 to 2.93) and a per capita monthly household income of >5000 RMB (aOR 0.66, 95% CI 0.47 to 0.93) were associated with poor sleep quality. CONCLUSIONS: Nearly two-fifths of patients with T2DM reported poor sleep quality in Hunan, China. Sex, marital status, diabetic retinopathy, diabetic foot and household income were independently associated with sleep quality among patients with T2DM in Hunan, China.


Asunto(s)
Diabetes Mellitus Tipo 2 , Trastornos del Inicio y del Mantenimiento del Sueño , Humanos , Femenino , Persona de Mediana Edad , Anciano , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/epidemiología , Estudios Transversales , Factores de Riesgo , Calidad del Sueño , Estudios Retrospectivos , Trastornos del Inicio y del Mantenimiento del Sueño/epidemiología , Trastornos del Inicio y del Mantenimiento del Sueño/complicaciones , China/epidemiología , Prevalencia
16.
MedComm (2020) ; 5(3): e488, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38420161

RESUMEN

Autism spectrum disorder (ASD) presents a significant risk to human well-being and has emerged as a worldwide public health concern. Twenty-eight children with ASD and 33 healthy children (HC) were selected for the quantitative determination of their plasma metabolites using an ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) platform. A total of 1997 metabolites were detected in the study cohort, from which 116 metabolites were found to be differentially expressed between the ASD and HC groups. Through analytical algorithms such as least absolute shrinkage selection operator (LASSO), support vector machine (SVM), and random forest (RF), three potential metabolic markers were identified as FAHFA (18:1(9Z)/9-O-18:0), DL-2-hydroxystearic acid, and 7(S),17(S)-dihydroxy-8(E),10(Z),13(Z),15(E),19(Z)-docosapentaenoic acid. These metabolites demonstrated superior performance in distinguishing the ASD group from the HC group, as indicated by the area under curves (AUCs) of 0.935, 0.897, and 0.963 for the three candidate biomarkers, respectively. The samples were divided into training and validation sets according to 7:3. Diagnostic models were constructed using logistic regression (LR), SVM, and RF. The constructed three-biomarker diagnostic model also exhibited strong discriminatory efficacy. These findings contribute to advancing our understanding of the underlying mechanisms involved in the occurrence of ASD and provide a valuable reference for clinical diagnosis.

17.
Food Chem ; 444: 138631, 2024 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-38325079

RESUMEN

Naringenin (NGE), a typical flavanone abundant in citrus fruits, exhibits remarkable antioxidant activities. However, its low solubility in oil restricts its widespread use in inhibiting lipid oxidation. In this study, we present a novel and effective approach to address this limitation by developing a naringenin-phospholipid complex (NGE-PC COM). Comprehensive analytical techniques including Fourier transform infrared (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD) were employed to confirm the formation of the NGE-PC COM and elucidate the interaction mechanism between NGE and phospholipids molecules. Notably, the oil-solubility of NGE was significantly enhanced by approximately 2700-fold when formulated as a phospholipid complex in soybean oil. The improved oil-solubility of NGE-PC COM enabled effective inhibition of oil thermal oxidation under high temperature conditions. Generally, this investigation proposed a novel and promising strategy for employing flavanones with strong antioxidant activities to enhance the thermal oxidative stability of edible oil during heating processes.


Asunto(s)
Flavanonas , Fosfolípidos , Fosfolípidos/química , Aceite de Soja , Antioxidantes , Calefacción , Flavanonas/química , Solubilidad , Estrés Oxidativo , Rastreo Diferencial de Calorimetría , Espectroscopía Infrarroja por Transformada de Fourier/métodos , Difracción de Rayos X
18.
Eur J Nutr ; 63(1): 243-251, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37845359

RESUMEN

PURPOSE: This study aimed to investigate the association between macronutrient intake and biological age. METHODS: Data were collected from 26,381 adults who participated in the United States National Health and Nutrition Examination Survey (NHANES). Two biological ages were estimated using the Klemera-Doubal method (KDM) and PhenoAge algorithms. Biological age acceleration (AA) was computed as the difference between biological age and chronological age. The associations between macronutrient intakes and AA were investigated. RESULTS: After fully adjusting for confounding factors, negative associations were observed between AA and fiber intake (KDM-AA: ß - 0.53, 95% CI - 0.62, - 0.43, P < 0.05; PhenoAge acceleration: ß - 0.30, 95% CI - 0.35, - 0.25, P < 0.05). High-quality carbohydrate intake was associated with decreased AA (KDM-AA: ß - 0.57, 95% CI - 0.67, - 0.47, P < 0.05; PhenoAge acceleration: ß - 0.32, 95% CI - 0.37, - 0.26, P < 0.05), while low-quality carbohydrate was associated with increased AA (KDM-AA: ß 0.30, 95% CI 0.21, 0.38, P < 0.05; PhenoAge acceleration: ß 0.16, 95% CI 0.11, 0.21, P < 0.05). Plant protein was associated with decreased AA (KDM-AA: ß - 0.39, 95% CI - 0.51, - 0.27, P < 0.05; PhenoAge acceleration: ß - 0.21, 95% CI - 0.26, - 0.15, P < 0.05). Long-chain SFA intake increased AA (KDM-AA: ß 0.16, 95% CI 0.08, 0.24, P < 0.05; PhenoAge acceleration: ß 0.11, 95% CI 0.07, 0.15, P < 0.05). ω-3 PUFA was associated with decreased KDM-AA (ß - 0.18, 95% CI - 0.27, - 0.08, P < 0.05) and PhenoAge acceleration (ß - 0.09, 95% CI - 0.13, - 0.04, P < 0.05). CONCLUSION: Our findings suggest that dietary fiber, high-quality carbohydrate, plant protein, and ω-3 PUFA intake may have a protective effect against AA, while low-quality carbohydrate and long-chain SFA intake may increase AA. Therefore, dietary interventions aimed at modifying macronutrient intakes may be useful in preventing or delaying age-related disease and improving overall health.


Asunto(s)
Grasas de la Dieta , Ácidos Grasos Omega-3 , Estados Unidos , Encuestas Nutricionales , Estudios Transversales , Nutrientes , Ingestión de Alimentos , Fibras de la Dieta , Proteínas de Plantas
19.
Biosens Bioelectron ; 246: 115863, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38008056

RESUMEN

Metal organic gels (MOGs) are a new kind of intelligent soft materials with excellent luminescence properties. However, MOGs with dual electrochemiluminescence (ECL) properties have not been reported. In this study, using Eu3+ as metal node, 4'-(4-carboxyphenyl)-2,2':6',2″-terpyridine (Hcptpy) and Luminol as organic ligands, a novel dual-ligand Europium-organic gels (Eu-L-H MOGs) were prepared by simple mixing at room temperature. On the one hand, Eu-L-H MOGs could exhibit strong and stable anodic ECL signals in the phosphate buffered saline (PBS) without the addition of co-reactants, which came from the blue emission of Luminol. On the other hand, using K2S2O8 as a cathodic co-reactant, Eu-L-H MOGs produced cathodic signals, which were derived from the red emission of Eu sensitized by Hcptpy through the antenna effect. Based on the independent dual ECL signals of Eu-L-H MOGs, we selected Alexa Flour 430 as the receptor and anodic ECL emission of Eu-L-H MOGs as the donor to construct the ECL resonance energy transfer (ECL-RET) ratio biosensor, which utilized exonuclease III assisted DNA cycle amplification to achieve ultrasensitive detection of the I27L gene. The detection linearity of I27L ranged from 1 fM to 10 nM, with a detection limit as low as 284 aM. This study developed a straightforward technique for obtaining a single luminescent material with dual signals, and further broadened the analytical application of MOGs in the realm of ECL.


Asunto(s)
Técnicas Biosensibles , Europio , Luminol , Ligandos , Mediciones Luminiscentes/métodos , Técnicas Biosensibles/métodos , Geles , Técnicas Electroquímicas/métodos , Límite de Detección
20.
Anal Chem ; 96(1): 538-546, 2024 01 09.
Artículo en Inglés | MEDLINE | ID: mdl-38102084

RESUMEN

This study developed a new zirconium metal-organic framework (MOF) luminophore named Zr-DPA@TCPP with dual-emission electrochemiluminescence (ECL) characteristics at a resolved potential. First, Zr-DPA@TCPP with a core-shell structure was effectively synthesized through the self-assembly of 9,10-di(p-carboxyphenyl)anthracene (DPA) and 5,10,15,20-tetra(4-carboxyphenyl)porphyrin (TCPP) as the respective organic ligands and the Zr cluster as the metal node. The reasonable integration of the two organic ligands DPA and TCPP with ECL properties into a single monomer, Zr-DPA@TCPP, successfully exhibited synchronous anodic and cathodic ECL signals. Besides, due to the impressively unique property of ferrocene (Fc), which can quench the anodic ECL but cannot affect the cathodic ECL signal, the ratiometric ECL biosensor was cleverly designed by using the cathode signal as an internal reference. Thus, combined with DNA recycle amplification reactions, the ECL biosensor realized sensitive ratiometric detection of HPV-16 DNA with the linear range of 1 fM-100 pM and the limit of detection (LOD) of 596 aM. The distinctive dual-emission properties of Zr-DPA@TCPP provided a new idea for the development of ECL luminophores and opened up an innovative avenue of fabricating the ratiometric ECL platform.


Asunto(s)
Técnicas Biosensibles , Estructuras Metalorgánicas , Circonio/química , Estructuras Metalorgánicas/química , Papillomavirus Humano 16 , Mediciones Luminiscentes , ADN/química , Límite de Detección , Técnicas Electroquímicas
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