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1.
Patient ; 2024 May 03.
Artículo en Inglés | MEDLINE | ID: mdl-38702574

RESUMEN

BACKGROUND AND OBJECTIVES: Increasing longevity and advances in treatment have increased the cancer burden in the elderly, resulting in complex follow-up care needs; however, in China, little is known about the follow-up care preferences of these patients. This study quantified older cancer patients' preferences for follow-up care and examined the trade-offs they are willing to make to accept an alternative follow-up model. METHODS: A discrete choice experiment was conducted among inpatients aged over 60 years with breast, prostate, or colorectal cancer, at two large tertiary hospitals in Nantong, China. Preference weights for follow-up care were estimated using mixed logit analysis. Subgroup analysis and latent class analysis were used to explore preference heterogeneity. RESULTS: Complete results were obtained from 422 patients (144 with breast cancer, 133 with prostate cancer, 145 with colorectal cancer), with a mean age of 70.81 years. Older cancer patients stated a preference for follow-up by specialists over primary healthcare (PHC) providers ( ß = -1.18, 95% confidence interval -1.40 to -0.97). The provider of follow-up care services was the most valued attribute among patients with breast cancer (relative importance [RI] 37.17%), while remote contact services were prioritized by patients with prostate (RI 43.50%) and colorectal cancer (RI 33.01%). The uptake rate of an alternative care model integrating PHC increased compared with the baseline setting when patients were provided with preferred services (continuity of care, individualized care plans, and remote contact services). CONCLUSION: To encourage older cancer patients to use PHC-integrated follow-up care, alternative follow-up care models need to be based on patients' preferences before introducing them as a routine option.

2.
Int J Environ Health Res ; : 1-13, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38713481

RESUMEN

Previous studies on temperature and infectious diseases primarily focused on individual disease types, yielding inconsistent conclusions. This study collected monthly data on notifiable infectious disease cases and meteorological variables across 7 provinces in China from 2011 to 2019. A distributed lag nonlinear model was used to evaluate the association between ambient temperature and infectious diseases within each province, and random meta-analysis was applied to evaluate the pooled effect. Extreme hot temperature (the 97.5th percentile) was positively associated with the risk of respiratory infectious diseases with the relative risk (RR) of 1.45 (95%CI: 1.01-2.08). Conversely, extreme cold temperature (the 2.5th percentile) was negatively associated with intestinal infectious diseases and zoonotic diseases and vector-borne diseases, reporting RRs of 0.43 (95%CI: 0.30-0.60) and 0.46 (95%CI: 0.38-0.57), respectively. This study described the nonlinear association between ambient temperature and infectious diseases with different transmission routes, informing comprehensive prevention and control strategies for temperature-related infectious diseases.

3.
Food Chem ; 452: 139537, 2024 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-38728891

RESUMEN

The chlortetracycline (CTC) residue in food poses a threat to human health. Therefore, developing sensitive, convenient and selective analytical methods for CTC detection is crucial. This study innovatively uses tin disulfide/bimetallic organic framework (SnS2/ZnCo-MOF) nanocomposites in conjunction with gold nanoparticles (AuNPs) to co-modify a glassy carbon electrode (GCE). Further, a molecularly imprinted polymer (MIP)-based electrochemical sensing platform Au-MIP/SnS2/ZnCo-MOF/Au/GCE (AZG) was fabricated for selective CTC detection. SnS2/ZnCo-MOF enhanced the stability and surface area of the AZG sensor. The presence of AuNPs facilitated electron transport between the probe and the electrode across the insulating MIP layer. The fixation of AuNPs and MIP via electropolymerization enhanced the selective recognition of this sensor and amplified its output signal. The AZG sensor demonstrated a wide linear detection range (0.1-100 µM), low detection limit (0.072 nM), and high sensitivity (0.830 µA µM-1). It has been used for detecting CTC in animal-origin food with good recovery (96.08%-104.60%).

4.
Sci Total Environ ; : 173430, 2024 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-38782273

RESUMEN

The prevalence of pollen allergies is a pressing global issue, with projections suggesting that half of the world's population will be affected by 2050 according to the estimation of the World Health Organization (WHO). Accurately forecasting pollen allergy risks requires identifying key factors and their thresholds for aerosol pollen. To address this, we developed a technical framework combining advanced machine learning and SHapley Additive exPlanations (SHAP) technology, focusing on Beijing. By analyzing meteorological data and vegetation phenology, we identified the factors influencing next-day's pollen concentration (NDP) in Beijing and their thresholds. Our results highlight vegetation phenology data from Synthetic Aperture Radar (SAR), temperature, wind speed, and atmospheric pressure as crucial factors in spring. In contrast, the Normalized Difference Vegetation Index (NDVI), air temperature, and wind speed are significant in autumn. Leveraging SHAP technology, we established season-specific thresholds for these factors. Our study not only confirms previous research but also unveils seasonal variations in the relationship between radar-derived vegetation phenology data and NDP. Additionally, we observe seasonal fluctuations in the influence patterns and threshold values of daily air temperatures on NDP. These insights are pivotal for improving pollen concentration prediction accuracy and managing allergic risks effectively.

5.
Sci Adv ; 10(20): eado1463, 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38758782

RESUMEN

A ketogenic diet (KD) is a high-fat, low-carbohydrate diet that leads to the generation of ketones. While KDs improve certain health conditions and are popular for weight loss, detrimental effects have also been reported. Here, we show mice on two different KDs and, at different ages, induce cellular senescence in multiple organs, including the heart and kidney. This effect is mediated through adenosine monophosphate-activated protein kinase (AMPK) and inactivation of mouse double minute 2 (MDM2) by caspase-2, leading to p53 accumulation and p21 induction. This was established using p53 and caspase-2 knockout mice and inhibitors to AMPK, p21, and caspase-2. In addition, senescence-associated secretory phenotype biomarkers were elevated in serum from mice on a KD and in plasma samples from patients on a KD clinical trial. Cellular senescence was eliminated by a senolytic and prevented by an intermittent KD. These results have important clinical implications, suggesting that the effects of a KD are contextual and likely require individual optimization.


Asunto(s)
Senescencia Celular , Dieta Cetogénica , Ratones Noqueados , Proteína p53 Supresora de Tumor , Animales , Proteína p53 Supresora de Tumor/metabolismo , Proteína p53 Supresora de Tumor/genética , Ratones , Humanos , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/metabolismo , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/genética , Proteínas Quinasas Activadas por AMP/metabolismo , Proteínas Proto-Oncogénicas c-mdm2/metabolismo , Masculino , Especificidad de Órganos
6.
Sci Adv ; 10(20): eadj5942, 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38758779

RESUMEN

Acetyl-CoA synthetase short-chain family member 1 (ACSS1) uses acetate to generate mitochondrial acetyl-CoA and is regulated by deacetylation by sirtuin 3. We generated an ACSS1-acetylation (Ac) mimic mouse, where lysine-635 was mutated to glutamine (K635Q). Male Acss1K635Q/K635Q mice were smaller with higher metabolic rate and blood acetate and decreased liver/serum ATP and lactate levels. After a 48-hour fast, Acss1K635Q/K635Q mice presented hypothermia and liver aberrations, including enlargement, discoloration, lipid droplet accumulation, and microsteatosis, consistent with nonalcoholic fatty liver disease (NAFLD). RNA sequencing analysis suggested dysregulation of fatty acid metabolism, cellular senescence, and hepatic steatosis networks, consistent with NAFLD. Fasted Acss1K635Q/K635Q mouse livers showed increased fatty acid synthase (FASN) and stearoyl-CoA desaturase 1 (SCD1), both associated with NAFLD, and increased carbohydrate response element-binding protein binding to Fasn and Scd1 enhancer regions. Last, liver lipidomics showed elevated ceramide, lysophosphatidylethanolamine, and lysophosphatidylcholine, all associated with NAFLD. Thus, we propose that ACSS1-K635-Ac dysregulation leads to aberrant lipid metabolism, cellular senescence, and NAFLD.


Asunto(s)
Senescencia Celular , Mitocondrias , Enfermedad del Hígado Graso no Alcohólico , Estearoil-CoA Desaturasa , Animales , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Enfermedad del Hígado Graso no Alcohólico/genética , Enfermedad del Hígado Graso no Alcohólico/patología , Ratones , Senescencia Celular/genética , Acetilación , Mitocondrias/metabolismo , Estearoil-CoA Desaturasa/metabolismo , Estearoil-CoA Desaturasa/genética , Masculino , Acetato CoA Ligasa/metabolismo , Acetato CoA Ligasa/genética , Técnicas de Sustitución del Gen , Hígado/metabolismo , Hígado/patología , Metabolismo de los Lípidos , Sirtuina 3/metabolismo , Sirtuina 3/genética , Modelos Animales de Enfermedad , Coenzima A Ligasas , Acido Graso Sintasa Tipo I
7.
J Phys Chem A ; 128(15): 2960-2970, 2024 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-38576211

RESUMEN

In order to design effective extractants for uranium extraction from seawater, it is imperative to acquire a more comprehensive understanding of the bonding properties between the uranyl cation (UO22+) and various ligands. Therefore, we employed density functional theory to investigate the complexation reactions of UO22+ with 29 different monovalent anions (L-1), exploring both mono- and bidentate coordination. We proposed a novel concept called "uranyl affinity" (Eua) to facilitate the establishment of a standardized scale for assessing the ease or difficulty of coordination bond formation between UO22+ and diverse ligands. Furthermore, we conducted an in-depth investigation into the underlying mechanisms involved. During the process of uranyl complex [(UO2L)+] formation, lone pair electrons from the coordinating atom in L- are transferred to either the lowest unoccupied molecular degenerate orbitals 1ϕu or 1δu of the uranyl ion, which originate from the uranium atom's 5f unoccupied orbitals. In light of discussion concerning the mechanisms of coordination bond formation, quantitative structure-property relationship analyses were conducted to investigate the correlation between Eua and various structural descriptors associated with the 29 ligands under investigation. This analysis revealed distinct patterns in Eua values while identifying key influencing factors among the different ligands.

8.
BMC Pregnancy Childbirth ; 24(1): 181, 2024 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-38454334

RESUMEN

BACKGROUND: Venous thromboembolism (VTE) is most prevalent among parturients following a cesarean section (CS). The objective of this study was to assess the practical utility of bilateral compression ultrasonography (CUS) of the lower limbs, coupled with D-dimer monitoring, in the early diagnosis of VTE within the Han Chinese population. METHODS: Our prospective observational study included 742 women who underwent CUS and D-dimer testing on the first day post-CS. Subsequently, telephone or outpatient follow-ups were conducted until 42 days postpartum. States of hypercoagulation and thrombosis, as indicated by CUS, were classified as CUS abnormal. A D-dimer level ≥ 3 mg/l was considered the D-dimer warning value. Early ambulation and mechanical prophylaxis were universally recommended for all parturients post-CS. A sequential diagnostic strategy, based on the 2015 RCOG VTE risk-assessment tool, was employed. Therapeutic doses of low-molecular-weight heparin (LMWH) were administered for the treatment of thromboembolic disease. Prophylactic doses of LMWH were given for VTE prophylaxis in parturients with hypercoagulative status accompanied by D-dimer levels ≥ 3 mg/l. All high-risk women (RCOG score ≥ 4 points) were additionally treated with preventive LMWH. Statistical analyses were conducted using the R statistical software, with a two-sided P value < 0.05 considered statistically significant. RESULTS: Fifteen cases of VTE and 727 instances without VTE were observed. The overall VTE rate post-CS was 2.02% (15/742), with 66.7% (10/15) being asymptomatic. Eleven patients received a VTE diagnosis on the first postpartum day. Among the 41 parturients exhibiting hypercoagulation ultrasound findings and D-dimer levels ≥ 3 mg/l, despite receiving pharmacological VTE prophylaxis with LMWH, 4.88% (2/41) in the high-risk group were eventually diagnosed with VTE. A total of 30.86% (229/742) exhibited normal ultrasound findings and D-dimer levels < 3 mg/l on the first day post-CS, with no VTE occurrences in the postpartum follow-up. According to RCOG's recommendation, 78.03% (579/742) of cesarean delivery women should receive prophylactic anticoagulation, while only 20.62% (153/742) met our criterion for prophylactic anticoagulation. CONCLUSION: The strategy of timely routine bilateral CUS and D-dimer monitoring is conducive to the early diagnosis and treatment of VTE, significantly reducing the use of LMWH in the Chinese Han population.


Asunto(s)
Productos de Degradación de Fibrina-Fibrinógeno , Trombofilia , Tromboembolia Venosa , Trombosis de la Vena , Humanos , Femenino , Embarazo , Heparina de Bajo-Peso-Molecular/uso terapéutico , Tromboembolia Venosa/diagnóstico por imagen , Tromboembolia Venosa/etiología , Cesárea/efectos adversos , Ultrasonografía , Trombofilia/tratamiento farmacológico , Anticoagulantes/uso terapéutico , Trombosis de la Vena/diagnóstico por imagen , Trombosis de la Vena/etiología , China/epidemiología
9.
Medicine (Baltimore) ; 103(8): e37152, 2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38394523

RESUMEN

Plasma atherogenic index (AIP) reflects a novel intricate biochemical indicator of lipids' metabolism. The involvement of lipid metabolism for pathogenesis concerning nonalcoholic fatty liver disease (NAFLD) has been established. However, the precise association across AIP and hepatic steatosis and fibrosis remains unclear. This present investigation explored the potential correlation across AIP, hepatic steatosis and fibrosis. Data were acquired through National Health and Nutrition Examination Survey (NHANES) from 2017 to 2020. Hepatic steatosis was detected through the controlled attenuation parameter (CAP), while hepatic fibrosis was examined via liver stiffness measurement (LSM). The study employed multiple linear, Fitted smoothed curves and subgroup analyses were used for investigating relationships between the AIP, CAP, and LSM. The study recruited 6239 participants. In multivariate linear regression analysis, findings indicated a remarkable correlation between AIP and exacerbated NAFLD risk [odds ratio (95% confidence interval), 1.17 (1.12, 1.21)]. Analysis further revealed a positive link across AIP and hepatic steatosis, as indicated through the CAP [ß (95% CI), 4.07 (3.32, 4.82)]. Tests for non-linearity, revealed a non-linear correlation between AIP and CAP (inflection point = 0.22). Subgroup analyses assessed the consistency of the link across AIP and CAP, indicating that the association remained comparable across all subgroups. Following the adjustment for all relevant variables, the linear regression analysis revealed a lack of statistical significance across the AIP and hepatic fibrosis. [LSM, ß (95% CI), -0.39 (-1.06, 0.28), P = .2501]. Smooth-fitting curves examined the link across AIP and LSM and showed a U-shaped pattern, indicating their positive correlation with AIP less than 0.48. However, no significant correlation was observed with AIP more than 0.48. This study highlighted a substantial positive relationship across AIP and hepatic steatosis, as measured through CAP, and suggests that it may be used as an efficient and rapid measure for clinical prediction of hepatic steatosis.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Enfermedad del Hígado Graso no Alcohólico , Humanos , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/patología , Hígado/patología , Encuestas Nutricionales , Biopsia , Cirrosis Hepática/diagnóstico
10.
BMC Pregnancy Childbirth ; 24(1): 109, 2024 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-38317068

RESUMEN

BACKGROUND: Hypertensive disorders of pregnancy (HDP) is the most common cause of indicated preterm delivery, but the impact of prenatal steroid exposure on the outcomes of preterm infants born to HDP mothers, who may be at risk for intrauterine hypoxia-ischemia, remains uncertain. The study objective is to evaluate the mortality and morbidities in HDP for very preterm infants (VPIs) exposed to different course of ANS. METHODS: This is a prospective cohort study comprising infants with < 32 weeks gestation born to women with HDP only from 1 Jan. 2019 to 31 Dec. 2021 within 40 participating neonatal intensive care units (NICUs) in Sino-northern network. ANS courses included completed, partial, repeated, and no ANS. Univariate and multivariable analyses were performed on administration of ANS and short-term outcomes before discharge. RESULTS: Among 1917 VPIs born to women with HDP only, 987(51.4%) received a complete course of ANS within 48 h to 7 days before birth, 560(29.2%) received partial ANS within 24 h before delivery, 100(5.2%) received repeat ANS and 270 (14.1%) did not receive any ANS. Compared to infants who received complete ANS, infants unexposed to ANS was associated with higher odds of death (AOR 1.85; 95%CI 1.10, 3.14), Severe Neurological Injury (SNI) or death (AOR 1.68; 95%CI 1.29,3.80) and NEC or death (AOR 1.78; 95%CI 1.55, 2.89), the repeated ANS group exhibits a significant negative correlation with the duration of oxygen therapy days (correlation coefficient - 18.3; 95%CI-39.2, -2.1). However, there were no significant differences observed between the full course and partial course groups in terms of outcomes. We can draw similar conclusions in the non-SGA group, while the differences are not significant in the SGA group. From KM curve, it showed that the repeated group had the highest survival rate, but the statistical analysis did not indicate a significant difference. CONCLUSIONS: Even partial courses of ANS administered within 24 h before delivery proved to be protective against death and other morbidities. The differences mentioned above are more pronounced in the non-SGA group. Repeat courses demonstrate a trend toward protection, but this still needs to be confirmed by larger samples.


Asunto(s)
Hipertensión Inducida en el Embarazo , Enfermedades del Prematuro , Preeclampsia , Lactante , Recién Nacido , Embarazo , Humanos , Femenino , Recien Nacido Prematuro , Estudios Prospectivos , Hipertensión Inducida en el Embarazo/epidemiología , Corticoesteroides/uso terapéutico , Enfermedades del Prematuro/prevención & control , Edad Gestacional , Retardo del Crecimiento Fetal , Morbilidad
11.
Cell Mol Life Sci ; 81(1): 67, 2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38289345

RESUMEN

Skeletal muscle is a highly specialized tissue composed of myofibres that performs crucial functions in movement and metabolism. In response to external stimuli and injuries, a range of stem/progenitor cells, with muscle stem cells or satellite cells (MuSCs) being the predominant cell type, are rapidly activated to repair and regenerate skeletal muscle within weeks. Under normal conditions, MuSCs remain in a quiescent state, but become proliferative and differentiate into new myofibres in response to injury. In addition to MuSCs, some interstitial progenitor cells (IPCs) such as fibro-adipogenic progenitors (FAPs), pericytes, interstitial stem cells expressing PW1 and negative for Pax7 (PICs), muscle side population cells (SPCs), CD133-positive cells and Twist2-positive cells have been identified as playing direct or indirect roles in regenerating muscle tissue. Here, we highlight the heterogeneity, molecular markers, and functional properties of these interstitial progenitor cells, and explore the role of muscle stem/progenitor cells in skeletal muscle homeostasis, aging, and muscle-related diseases. This review provides critical insights for future stem cell therapies aimed at treating muscle-related diseases.


Asunto(s)
Músculo Esquelético , Células Madre , Homeostasis , Adipogénesis
12.
Artículo en Inglés | MEDLINE | ID: mdl-37971436

RESUMEN

Objective: The objective of this study was to explore common TCM constitutions among gout patients and investigate the potential relationship between traditional Chinese medicine's (TCM) constitution and clinical parameters. Methods: A total of 219 gout patients with 195 participants were included in this study. All participants completed a baseline questionnaire on demographic characteristics, including age, weight, and family history. The biased constitution of TCM was identified by questionnaires surveyed with a TCM constitution table. Results: Of 195 patients with gout, phlegm-damp accounted for the majority of TCM constitution classifications, followed by Qi-deficiency, damp-heat, and Yang-deficiency constitutions. Besides, patients with these four constitutions have a higher BMI, blood sugar, and homocysteine. Conclusion: The major types of constitution among these gout patients were phlegm-damp, Yang-deficiency, Qi-deficiency, and damp-heat. Gout symptoms with TCM constitutional theory may contribute to provide new insights into more rapid diagnosis and treatment for the effective prevention or therapy of gout. It is necessary to design more case-control studies and high-quality cohort in the future researches to provide a more helpful evidence-based basis for evaluating the relationship between TCM constitution and gout patients.

13.
Artículo en Inglés | MEDLINE | ID: mdl-37874939

RESUMEN

An efficient separation technology involving ammonia (NH3) and carbon dioxide (CO2) is of great importance for achieving low-carbon economy, environmental protection, and resource utilization. However, directly separating NH3 and CO2 for ammonia-based CO2 capture processes is still a great challenge. Herein, we propose a new strategy for selective separation of NH3 and CO2 by functional hybrid membranes that integrate polyimide (PI) and ionic liquids (ILs). The incorporated protic IL [Bim][NTf2] is confined in the interchain segment of PI, which decreases the fractional free volume and narrows the gas transport channel, benefiting the high separation selectivity of hybrid membranes. At the same time, the confined IL also provides high NH3 affinity for transport channels, promoting NH3 selective and fast transport owing to strong hydrogen bonding interaction between [Bim][NTf2] and NH3 molecules. Thus, the optimal hybrid membrane exhibits an ultrahigh NH3/CO2 ideal selectivity of up to 159 at 30 °C without sacrificing permeability, which is 60 times higher than that of the neat PI membrane and superior to the state-of-the art reported values. Moreover, the introduction of [Bim][NTf2] also reduces the permeation active energy of NH3 and reverses the hybrid membrane toward "NH3 affinity", as understood by studying the effect of temperature. Also, NH3 molecules are much easier to transport at high temperature, showing great application potential in direct NH3/CO2 separation. Overall, this work provides a promising ultraselective membrane material for ammonia-based CO2 capture processes.

14.
Geriatr Nurs ; 54: 258-263, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37897931

RESUMEN

BACKGROUND: Dysphagia is a health concern that causes severe complications and affects the life quality of the older population. This study aimed to determine the diagnostic performance of the Eating Assessment Tool (EAT)-2 compared with the EAT-10 and the Water Swallow Test (WST) in screening for dysphagia. METHODS: A cross-sectional study was conducted among 5,090 community-dwelling older adults. Dysphagia was evaluated using both a subjective measure, the 10-item EAT (EAT-10) and an objective measure, the WST. The kappa index in pairs were analyzed. The validity and reliability of EAT-2 were also assessed. RESULTS: The sensitivity and specificity of the EAT-2 were 96.3 % and 94.8 %, respectively. The kappa index between the EAT-2 and EAT-10 was 0.64, whereas it was 0.11 between the EAT-10 and WST. CONCLUSIONS: The EAT-2 was a simpler screening tool for dysphagia. Combining the subjective questionnaire (EAT-10 or EAT-2) and the objective test (WST) is recommended.


Asunto(s)
Trastornos de Deglución , Humanos , Anciano , Trastornos de Deglución/diagnóstico , Vida Independiente , Estudios Transversales , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
15.
Plant Dis ; 2023 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-37669177

RESUMEN

Paeonia lactiflora Pall is a traditional famous flower with long cultivated history in China, and has important medical and ornamental functions (Duan et al. 2022). In the middle of June 2022, anthracnose disease was observed nearly 25% (n=90) on P. lactiflora in Poyang County, Shangrao City, Jiangxi Province (29.00° N, 116.67° E) (Figure 1 E). The symptoms of the disease were small, round, light brown spots then grew bigger to round or irregular dark brown lesions (5 to 7 mm diameter) progressively on the leaves with disease spread (Figure 1 A). Subsequently, necrotic tissue was formed in the center and caused fade and wilt on the leaves ultimately, which reduced the medicinal and aesthetic value severely. Small pieces of diseased tissue (5 × 5 mm) were cut from the diseased junction, disinfected with 75% ethanol for 30 to 45 seconds, then 1% NaClO for 1 to 2 minutes, rinsed three times with sterile water. To identify the pathogen, tissues were placed on PDA and incubated for 3 days at 28°C. Single spore isolates were cultured on PDA, the colonies of one representative strain (SY4) were originally white with a lot of aerial mycelium after 5 to 7 days at 28°C in the incubator. The center of the colony turned greyish-white, released tiny orange-yellow particles (conidia) (Figure 1 F and 1 G), which were single, colorless, elongated ovals with rounded ends and measured 11.29 to 23.24 × 3.94 to 5.60 µm (av=15.89 µm × 4.74 µm, n=50) (Figure 1 H and 1 I). The isolate SY4 was identified to Colletotrichum fructicola based on morphological characteristics (Yang et al. 2021; Li et al. 2022b). For further molecular identification, the rDNA-ITS, actin gene (ACT), glyceraldehyde-3-phosphatedehydrogenase (GAPDH), chitin synthase (CHS) and calmodulin gene (CAL) genes were amplified and sequenced with primers of ITS1/ITS4 (Gardes et al. 1993), ACT-512F/ACT-783R, GDF/GDR (Templeton et al. 1992), CHS-79F/CHS-345R (Carbone et al. 1999) and CL1C/ CL2C (Weir et al. 2012) respectively. The accession numbers in GenBank were OP523977 (ITS-rDNA), OP547618 (ACT), OP605733 (GAPDH), OP605732 (CHS), and OP605731 (CAL). The BLAST analysis revealed that these sequences were identical more than 99% with those of C. fructicola (GenBank accession Nos. MZ437948.1, MN525803.1, MN525860.1, MZ13360.1 and ON188684.1) (Figure 2). To confirm pathogenicity, the leaves were cleaned with 75% ethanol, rinsed with sterile water. After the leaf surface was dried naturally, 20 leaves were pricked at two symmetrical places on either side of the main veins of the leaf with a sterilized inoculum needle (2.0 mm in diameter), half of the wounded leaves were inoculated with 20 µL spore suspension (1.0 × 106 spores/mL) (Figure 1 C and 1 D), while the other half were inoculated with sterile water as controls (Figure 1 B). Inoculated leaves were grown for 5 days in an incubator at 28 °C and above 90% relative humidity, repeated three times. The results demonstrated that the wounded leaves with C. fructicola showed the same signs of wilting with the original disease leaves, while control leaves remained healthy. The same fungus was reisolated from the diseased leaves which confirmed with Koch's postulates. The same fungus was re-isolated from the diseased leaves while it was not isolated from control leaves, confirmed with Koch's postulates. In China, it had been reported that C. fructicola caused anthracnose on Persea americana (Li et al. 2022a) and Myrica rubra (Li et al. 2022b). To the best of our knowledge, this is the first report of anthracnose on P. lactiflora caused by C. fructicola in China. The results will help to develop effective control strategies for anthracnose on P. lactiflora.

16.
Aging Clin Exp Res ; 35(9): 1945-1954, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37382809

RESUMEN

BACKGROUND: Sleep disorders are a common syndrome and could affect the life quality of the older adults. AIMS: This study aimed to investigate the association between nutritional status and sleep quality in the Chinese community-dwelling older adults. METHODS: A total of 2,878 participants ≥ 65 years old from the Yiwu Elderly Cohort were included in the study. Nutritional status was assessed using the Mini Nutritional Assessment Short Form (MNA-SF). Participants were categorized as subjects with malnutrition, at risk of malnutrition or well-nourished based on their MNA-SF score. Pittsburgh Sleep Quality Index (PSQI) was used to identify sleep disorders. PSQI score ≥ 6 was categorized as poor sleep quality. RESULTS: Among the 2,878 participants (mean age 72.71 ± 5.79 years, 50.3% men), 31.5% (n = 906) were classified as having sleep disorders, and 25.5% were identified as malnutrition or at risk of malnutrition. We found a significantly relationship between nutritional status and sleep quality in older adults, and the results showed well-nourished decreased the risk of sleep disorders (OR = 0.32, 95% CI = 0.13, 0.75). And well-nourished status was significantly associated with less daytime dysfunction, adequate sleep duration, and good subjective sleep quality (all P < 0.05). CONCLUSION: There was a close association of nutritional status and sleep quality in older adults. We should pay more attention to the nutritional status of older people with sleep problems, as well as the sleep quality of older adults with malnutrition.


Asunto(s)
Desnutrición , Estado Nutricional , Masculino , Anciano , Humanos , Femenino , Vida Independiente , Pueblos del Este de Asia , Calidad del Sueño , Evaluación Geriátrica/métodos , Desnutrición/epidemiología , Evaluación Nutricional
17.
Can J Surg ; 66(3): E310-E320, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37369443

RESUMEN

BACKGROUND: Women with low-grade ovarian serous carcinoma (LGSC) benefit from surgical treatment; however, the role of chemotherapy is controversial. We examined an international database through the Ovarian Cancer Association Consortium to identify factors that affect survival in LGSC. METHODS: We performed a retrospective cohort analysis of patients with LGSC who had had primary surgery and had overall survival data available. We performed univariate and multivariate analyses of progression-free survival and overall survival, and generated Kaplan-Meier survival curves. RESULTS: Of the 707 patients with LGSC, 680 (96.2%) had available overall survival data. The patients' median age overall was 54 years. Of the 659 patients with International Federation of Obstetrics and Gynecology stage data, 156 (23.7%) had stage I disease, 64 (9.7%) had stage II, 395 (59.9%) had stage III, and 44 (6.7%) had stage IV. Of the 377 patients with surgical data, 200 (53.0%) had no visible residual disease. Of the 361 patients with chemotherapy data, 330 (91.4%) received first-line platinum-based chemotherapy. The median follow-up duration was 5.0 years. The median progression-free survival and overall survival were 43.2 months and 110.4 months, respectively. Multivariate analysis indicated a statistically significant impact of stage and residual disease on progression-free survival and overall survival. Platinum-based chemotherapy was not associated with a survival advantage. CONCLUSION: This multicentre analysis indicates that complete surgical cytoreduction to no visible residual disease has the most impact on improved survival in LGSC. This finding could immediately inform and change practice.


Asunto(s)
Cistadenocarcinoma Seroso , Neoplasias Ováricas , Humanos , Femenino , Persona de Mediana Edad , Estudios Retrospectivos , Estadificación de Neoplasias , Neoplasias Ováricas/cirugía , Neoplasias Ováricas/tratamiento farmacológico , Cistadenocarcinoma Seroso/cirugía , Cistadenocarcinoma Seroso/tratamiento farmacológico , Estimación de Kaplan-Meier
18.
CNS Neurosci Ther ; 29(10): 3081-3093, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37144588

RESUMEN

AIMS: Gecko, the "sky dragon" named by Traditional Chinese Medicine, undergoes rapid coagulation and scarless regeneration following tail amputation in the natural ecology, providing a perfect opportunity to develop the efficient and safe drug for blood clotting. Here, gecko thrombin (gthrombin) was recombinantly prepared and comparatively studied on its procoagulant activity. METHODS: The 3D structure of gthrombin was constructed using the homology modeling method of I-TASSER. The active gthrombin was prepared by the expression of gecko prethrombin-2 in 293 T cells, followed by purification with Ni2+ -chelating column chromatography prior to activation by snake venom-derived Ecarin. The enzymatic activities of gthrombin were assayed by hydrolysis of synthetic substrate S-2238 and the fibrinogen clotting. The vulnerable nerve cells were used to evaluate the toxicity of gthrombin at molecular and cellular levels. RESULTS: The active recombinant gthrombin showed super-high catalytic and fibrinogenolytic efficiency than those of human under different temperatures and pH conditions. In addition, gthrombin made nontoxic effects on the central nerve cells including neurons, contrary to those of mammalian counterparts, which contribute to neuronal damage, astrogliosis, and demyelination. CONCLUSIONS: A super-high activity but safe procoagulant candidate drug was identified from reptiles, which provided a promising perspective for clinical application in rapid blood clotting.


Asunto(s)
Lagartos , Trombina , Animales , Humanos , Trombina/farmacología , Trombina/metabolismo , Coagulación Sanguínea , Lagartos/metabolismo , Mamíferos/metabolismo
19.
Altern Ther Health Med ; 29(4): 72-74, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37083645

RESUMEN

Background: Students play an important role in developing a country, and attention should be paid to encouraging and supporting students' creativity, especially in higher education. Objective: Creative training is an essential part of medical education and humanities education. The purpose of this study was to compare the trait creativity between students majoring in medicine and humanities. Methods: A cross-sectional online survey of students majoring in medicine and humanities was performed from July 20, 2022, to February 12, 2023. Trait creativity was assessed using the Williams Creativity Scale. Results: There were significant differences between female students and male students in the score of risk-taking (P < .05) and challenge scores (P < .05). No statistical difference was found for the score of trait creativity in four dimensions (imagination, challenging, risk-taking, and curiosity) between medical students and humanities students (P > .05). Conclusions: The study suggested that the overall trait creativity in medical students is equal to that of humanities students. However, gender differences in trait creativity still exist. Future studies should further identify more influential factors of trait creativity among university students.


Asunto(s)
Estudiantes de Medicina , Humanos , Masculino , Femenino , Estudios Transversales , Humanidades/educación , Creatividad , Encuestas y Cuestionarios
20.
Virol J ; 20(1): 74, 2023 04 19.
Artículo en Inglés | MEDLINE | ID: mdl-37076847

RESUMEN

BACKGROUND: CVB5 can cause respiratory infections. However, the molecular epidemiological information about CVB5 in respiratory tract samples is still limited. Here, we report five cases in which CVB5 was detected in sputum sample of pneumonia children patients from Kunming, Southwest China. METHODS: CVB5 isolates were obtained from sputum samples of patients with pneumonia. Whole-genome sequencing of CVB5 isolates was performed using segmented PCR, and phylogenetic, mutation and recombination analysis. The effect of mutations in the VP1 protein on hydration were analyzed by Protscale. The tertiary models of VP1 proteins were established by Colabfold, and the effect of mutations in VP1 protein on volume modifications and binding affinity were analyzed by Pymol software and PROVEAN. RESULTS: A total of five CVB5 complete genome sequences were obtained. No obvious homologous recombination signals comparing with other coxsackie B viruses were observed in the five isolates. Phylogenetic analysis showed that the five CVB5 sputum isolates were from an independent branch in genogroup E. Due to the mutation, the structure and spatial of the VP1 protein N-terminus have changed significantly. Comparing to the Faulkner (CVB5 prototype strain), PROVEAN revealed three deleterious substitutions: Y75F, N166T (KM35), T140I (KM41). The last two of the three deleterious substitutions significantly increased the hydrophobicity of the residues. CONCLUSIONS: We unexpectedly found five cases of CVB5 infection instead of rhinoviruses infection during our routine surveillance of rhinoviruses in respiratory tract samples. All five patients were hospitalized with pneumonia symptoms and were not tested for enterovirus during their hospitalization. This report suggests that enterovirus surveillance in patients with respiratory symptoms should be strengthened.


Asunto(s)
Infecciones por Enterovirus , Enterovirus , Neumonía , Humanos , Niño , Filogenia , Esputo , Enterovirus Humano B/genética , Enterovirus/genética , China/epidemiología , Antígenos Virales/genética
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