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1.
Plant Cell ; 34(1): 679-697, 2022 01 20.
Artículo en Inglés | MEDLINE | ID: mdl-34599338

RESUMEN

Immune responses are triggered when pattern recognition receptors recognize microbial molecular patterns. The Arabidopsis (Arabidopsis thaliana) receptor-like cytoplasmic kinase BOTRYTIS-INDUCED KINASE1 (BIK1) acts as a signaling hub of plant immunity. BIK1 homeostasis is maintained by a regulatory module in which CALCIUM-DEPENDENT PROTEIN KINASE28 (CPK28) regulates BIK1 turnover via the activities of two E3 ligases. Immune-induced alternative splicing of CPK28 attenuates CPK28 function. However, it remained unknown whether CPK28 is under proteasomal control. Here, we demonstrate that CPK28 undergoes ubiquitination and 26S proteasome-mediated degradation, which is enhanced by flagellin treatment. Two closely related ubiquitin ligases, ARABIDOPSIS TÓXICOS EN LEVADURA31 (ATL31) and ATL6, specifically interact with CPK28 at the plasma membrane; this association is enhanced by flagellin elicitation. ATL31/6 directly ubiquitinate CPK28, resulting in its proteasomal degradation. Furthermore, ATL31/6 promotes the stability of BIK1 by mediating CPK28 degradation. Consequently, ATL31/6 positively regulate BIK1-mediated immunity. Our findings reveal another mechanism for attenuating CPK28 function to maintain BIK1 homeostasis and enhance immune responses.


Asunto(s)
Proteínas de Arabidopsis/genética , Arabidopsis/genética , Inmunidad de la Planta/genética , Complejo de la Endopetidasa Proteasomal/metabolismo , Proteínas Quinasas/genética , Ubiquitina-Proteína Ligasas/genética , Arabidopsis/inmunología , Proteínas de Arabidopsis/metabolismo , Proteínas Quinasas/metabolismo , Transducción de Señal , Ubiquitina-Proteína Ligasas/metabolismo
2.
Artículo en Inglés | MEDLINE | ID: mdl-38652594

RESUMEN

OBJECTIVES: The reported prevalence of mental health conditions (MHCs) in people with systemic lupus erythematosus (SLE) ranges widely. Whether MHCs are associated with increased risk of SLE or the outcomes of the disease is unclear. This paper aimed to conduct an umbrella and updated meta-analysis of MHCs in people with SLE and to identify whether MHCs are associated with the risk of SLE or patient outcomes. METHODS: We comprehensively searched PubMed, Web of Science, and Embase databases to identify relevant studies published before June 2023. Random-effect models were used to calculate the pooled prevalence and risk ratios for each MHC. RESULTS: 203 studies with 1485094 individuals were included. The most MHCs observed in patients with SLE were sleep disturbance (59.7% [95% CI, 52.4%-66.8%]) among adults and cognitive dysfunction (63.4% [95% CI, 46.9%-77.9%]) among children. We found that depressive disorders (RR = 2.30, 95% CI = 1.94-2.75) and posttraumatic stress disorder (RR = 1.93, 95% CI = 1.61-2.31) in the general population were significantly associated with an increased likelihood of developing SLE. Furthermore, concurrent MHCs were linked to unfavorable outcomes in patients with SLE, such as decreased quality of life, increased risk of unemployment, and other somatic comorbidities. CONCLUSION: Our study demonstrated a high prevalence of MHCs among patients with SLE. Individuals with pre-existing mental disorders exhibited an elevated susceptibility to developing SLE, and patients presenting with MHCs were at increased risk of experiencing suboptimal health and functional outcomes. Therefore, evaluating and preventing MHCs should be considered as an integral component of the comprehensive treatment strategy for SLE.

3.
Bioconjug Chem ; 35(7): 944-953, 2024 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-38954775

RESUMEN

The chemical synthesis of homogeneously ubiquitylated histones is a powerful approach to decipher histone ubiquitylation-dependent epigenetic regulation. Among the various methods, α-halogen ketone-mediated conjugation chemistry has recently been an attractive strategy to generate single-monoubiquitylated histones for biochemical and structural studies. Herein, we report the use of this strategy to prepare not only dual- and even triple-monoubiquitylated histones but also diubiquitin-modified histones. We were surprised to find that the synthetic efficiencies of multi-monoubiquitylated histones were comparable to those of single-monoubiquitylated ones, suggesting that this strategy is highly tolerant to the number of ubiquitin monomers installed onto histones. The facile generation of a series of single-, dual-, and triple-monoubiquitylated H3 proteins enabled us to evaluate the influence of ubiquitylation patterns on the binding of DNA methyltransferase 1 (DNMT1) to nucleosomes. Our study highlights the potential of site-specific conjugation chemistry to generate chemically defined histones for epigenetic studies.


Asunto(s)
Histonas , Cetonas , Ubiquitinación , Histonas/química , Histonas/metabolismo , Histonas/síntesis química , Cetonas/química , Ubiquitina/química , Humanos , ADN (Citosina-5-)-Metiltransferasa 1/metabolismo , ADN (Citosina-5-)-Metiltransferasa 1/química , Nucleosomas/química , Nucleosomas/metabolismo
4.
Inorg Chem ; 63(35): 16224-16232, 2024 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-39151039

RESUMEN

In recent years, low-dimensional organic-inorganic hybrid metal halides have garnered significant attention for optoelectronic applications due to their exceptional photophysical properties, despite their persistent challenge of low stability. Addressing this challenge, our study introduces 1-[5-(trifluoromethyl)pyridin-2-yl]piperazinium (TFPP) as a cation, harvesting a novel one-dimensional hybrid cadmium-based halide semiconductor (TFPP)CdCl4, which exhibits intense blue-light emission upon UV excitation. Additionally, (TFPP)CdCl4 demonstrates a high scintillation performance under X-ray excitation, producing 16600 ± 500 photons MeV-1 and achieving a low detection limit of 0.891 µGyair s-1. Notably, (TFPP)CdCl4 showcases remarkable stability against water, intense light sources, heating, and corrosive environments, positioning it as a promising candidate for optoelectronic applications. Through a blend of experimental techniques and theoretical analyses, including density functional theory calculations, we elucidate the unique photophysical properties and structural stability of (TFPP)CdCl4. These findings significantly contribute to the understanding of low-dimensional hybrid halide semiconductors, offering valuable insights into their potential application in advanced optoelectronic devices and paving the way for further research in this field.

5.
Eur Neurol ; 87(2): 93-104, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38657568

RESUMEN

INTRODUCTION: Dementia is a neurodegenerative disease with insidious onset and progressive progression, of which the most common type is Alzheimer's disease (AD). Lithium, a trace element in the body, has neuroprotective properties. However, whether lithium can treat dementia or AD remains a highly controversial topic. Therefore, we conducted a meta-analysis. METHODS: A systematic literature review was conducted on PubMed, Embase, and Web of Science. Comparison of the effects of lithium on AD or dementia in terms of use, duration, and dosage, and meta-analysis to test whether lithium therapy is beneficial in ameliorating the onset of dementia or AD. Sensitivity analyses were performed using a stepwise exclusion method. The Newcastle-Ottawa Scale (NOS) was used to assess the quality of included studies. We determined the relative risk (RR) between patient groups using a random-effects model. RESULTS: A total of seven studies were included. The forest plot results showed that taking lithium therapy reduced the risk of AD (RR 0.59, 95% confidence interval [CI]: 0.44-0.78) and is also protective in reducing the risk of dementia (RR 0.66, 95% CI: 0.56-0.77). The duration of lithium therapy was able to affect dementia incidence (RR 0.70, 95% CI: 0.55-0.88); however, it is unclear how this effect might manifest in AD. It is also uncertain how many prescriptions for lithium treatment lower the chance of dementia development. CONCLUSION: The duration of treatment and the usage of lithium therapy seem to lower the risk of AD and postpone the onset of dementia.


Asunto(s)
Enfermedad de Alzheimer , Demencia , Humanos , Enfermedad de Alzheimer/tratamiento farmacológico , Enfermedad de Alzheimer/epidemiología , Demencia/epidemiología , Demencia/tratamiento farmacológico , Compuestos de Litio/uso terapéutico , Prevalencia , Litio/uso terapéutico , Fármacos Neuroprotectores/uso terapéutico
6.
Ecotoxicol Environ Saf ; 275: 116278, 2024 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-38564860

RESUMEN

Due to the rise in temperature and sea level caused by climate change, the detection rate of aflatoxin B1 (AFB1) in food crops has increased dramatically, and the frequency and severity of aflatoxicosis in humans and animals are also increasing. AFB1 has strong hepatotoxicity, causing severe liver damage and even cancer. However, the mechanism of AFB1 hepatotoxicity remains unclear. By integrating network toxicology, molecular docking and in vivo experiments, this research was designed to explore the potential hepatotoxicity mechanisms of AFB1. Thirty-three intersection targets for AFB1-induced liver damage were identified using online databases. PI3K/AKT1, MAPK, FOXO1 signaling pathways, and apoptosis were significantly enriched. In addition, the proteins of ALB, AKT1, PIK3CG, MAPK8, HSP90AA1, PPARA, MAPK1, EGFR, FOXO1, and IGF1 exhibited good affinity with AFB1. In vivo experiments, significant pathological changes occurred in the liver of mice. AFB1 induction increased the expression levels of EGFR, ERK, and FOXO1, and decreased the expression levsls of PI3K and AKT1. Moreover, AFB1 treatment caused an increase in Caspase3 expression, and a decrease in Bcl2/Bax ratio. By combining network toxicology with in vivo experiments, this study confirms for the first time that AFB1 promotes the FOXO1 signaling pathway by inactivating PI3K/AKT1 and activating EGFR/ERK signaling pathways, hence aggravating hepatocyte apoptosis. This research provides new strategies for studying the toxicity of environmental pollutants and new possible targets for the development of hepatoprotective drugs.


Asunto(s)
Aflatoxina B1 , Enfermedad Hepática Inducida por Sustancias y Drogas , Humanos , Ratones , Animales , Simulación del Acoplamiento Molecular , Aflatoxina B1/toxicidad , Hígado/metabolismo , Enfermedad Hepática Inducida por Sustancias y Drogas/metabolismo , Fosfatidilinositol 3-Quinasas/genética , Fosfatidilinositol 3-Quinasas/metabolismo , Receptores ErbB/metabolismo
7.
Ecotoxicol Environ Saf ; 283: 116808, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39083865

RESUMEN

Exposure to arsenic (As) induces adverse effects on human health. Vitamins B1, B6, and C, as indispensable micronutrients for humans, have been proven to influence the metabolism and toxicity of ingested As. To determine the effect of vitamins on health risks associated with soil exposure, As bioaccessibility in 14 soil samples using four in vitro methods of IVG, PBET, SBRC, and UBM was measured with the addition of vitamins B1, B6, and C. With vitamins B1 and B6 addition, the gastric As bioaccessibility in 14 soil samples was reduced by 1.14-3.52 and 1.14-5.02 fold, respectively, and instead an increase in the intestinal bioaccessibility was presented in some cases. Vitamin C supplementation yielded higher As bioaccessibility in the gastric (1.13-13.02 fold) and small intestinal (1.21-33.35 fold) phases, respectively. As evidenced by the X-ray absorption near-edge spectroscopy (XANES) and Fourier transform infrared spectroscopy (FTIR) analysis, arsenic dissolution was promoted by Fe-As and hindered by the formation of Al-As fractions. Soil As dissolution in the simulated gastrointestinal tract was strongly influenced by soil minerals and ingested vitamins, due to the chelation of arsenic with vitamins and soil minerals such as Fe (hydr)oxides, and Fe(III) reductive dissolution to enhance As release by vitamin C as an iron reducer. These findings will expand the knowledge of health risks of exposure to As-contaminated soils and nutritional interventions aiming at the mitigation of As toxicity.


Asunto(s)
Arsénico , Disponibilidad Biológica , Contaminantes del Suelo , Arsénico/análisis , Contaminantes del Suelo/análisis , Vitaminas , Humanos , Suelo/química , Suplementos Dietéticos , Tracto Gastrointestinal/metabolismo , Tracto Gastrointestinal/efectos de los fármacos
8.
Int J Mol Sci ; 25(9)2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38732090

RESUMEN

Meox1 is a critical transcription factor that plays a pivotal role in embryogenesis and muscle development. It has been established as a marker gene for growth-specific muscle stem cells in zebrafish. In this study, we identified the SsMeox1 gene in a large teleost fish, Sebastes schlegelii. Through in situ hybridization and histological analysis, we discovered that SsMeox1 can be employed as a specific marker of growth-specific muscle stem cells, which originate from the somite stage and are primarily situated in the external cell layer (ECL) and myosepta, with a minor population distributed among muscle fibers. The knockdown of SsMeox1 resulted in a significant increase in Ccnb1 expression, subsequently promoting cell cycle progression and potentially accelerating the depletion of the stem cell pool, which ultimately led to significant growth retardation. These findings suggest that SsMeox1 arrests the cell cycle of growth-specific muscle stem cells in the G2 phase by suppressing Ccnb1 expression, which is essential for maintaining the stability of the growth-specific muscle stem cell pool. Our study provides significant insights into the molecular mechanisms underlying the indeterminate growth of large teleosts.


Asunto(s)
Proteínas de Peces , Peces , Desarrollo de Músculos , Animales , Ciclo Celular/genética , Ciclina B1/metabolismo , Ciclina B1/genética , Proteínas de Peces/genética , Proteínas de Peces/metabolismo , Regulación del Desarrollo de la Expresión Génica , Proteínas de Homeodominio/genética , Proteínas de Homeodominio/metabolismo , Desarrollo de Músculos/genética , Células Madre/metabolismo , Células Madre/citología , Factores de Transcripción/metabolismo , Factores de Transcripción/genética , Peces/crecimiento & desarrollo , Peces/metabolismo
9.
J Environ Manage ; 367: 122113, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39111010

RESUMEN

Global irrigation areas face the contradictory challenges of controlling nitrate inputs and ensuring food-safe production. To prevent and control nitrate pollution in irrigation areas, the study using the Yellow River basin (Ningxia section) of China as a case study, employed nitrogen and oxygen dual isotope tracing and extensive field investigations to analyze the sources, fate, and influencing factors of nitrate in agricultural drainage ditches. The results of source tracing of nitrate showed that annual proportions of nitrate sources entering the Yellow River in the ditches are as follows: for manure & sewage, fertilizer, and natural sources, the ratios are 33%, 35%, and 32% overall. The results of nitrate fate showed that nitrates derived from nitrate fertilizer exhibit a lower residual rate in drainage ditches (ecological ditches) compared to ammonium fertilizer, which can undergo self-ecological restoration within one year. The results of influencing factors showed that crops with high water and nutrient requirements, such as vegetables, the nitrate pollution and environmental harm resulting from "exploitative cultivation" are five times more than normal cultivation practices in dryland and paddy fields, especially winter irrigation without crop interception exacerbates the leaching of nitrate from the soil. Therefore, nitrate management in irrigation areas should focus on preventing and controlling "exploitative cultivation" and losses during winter irrigation, while appropriately adjusting the application ratio of ammonium nitrogen fertilizers. The results of the study can guide strategies to mitigate nitrate pollution in irrigated areas such as livestock farming, fertilizer application, irrigation management, ditch optimization, and crop cultivation.


Asunto(s)
Riego Agrícola , Fertilizantes , Nitratos , Nitratos/análisis , Fertilizantes/análisis , China , Agricultura/métodos , Granjas , Suelo/química , Monitoreo del Ambiente , Productos Agrícolas/crecimiento & desarrollo
10.
BMC Nurs ; 23(1): 543, 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39112989

RESUMEN

BACKGROUND: Nursing Practice Environment is an important index to improve nursing quality and patient outcome. To explore the nursing practice environment in the COVID-19 ward during the period of COVID-19 and its impact on nursing quality to provide reference for setting up supporting nursing team in epidemic area in the future. METHODS: A cross-sectional survey was conducted among 251 nurses working in COVID-19 ward in Shanghai, Hainan and Hunan in December 2022 through stratified proportional sampling. Structured questionnaires, including general information questionnaire, professional practice environment scale and nursing quality questionnaire, were used to investigate the patients. Pearson correlation was used to analyze the correlation between nursing practice environment and nursing quality, and multiple linear regression analysis was used to analyze the influencing factors of nursing quality in the COVID-19 ward. RESULTS: The professional practice environment scale score was (3.34 ± 0.40), the nursing quality questionnaire score was (9.47 ± 0.81), both at a high level. Single factor analysis showed that nursing quality was related to educational background, physical condition, professional title, grade of the original hospital and composition of nursing staff in supported departments. Nursing quality were positively correlated with each nursing practice environment dimensions (in addition to teamwork). The results of regression analysis showed that the nursing practice environment in the COVID-19 ward had a positive impact on nursing quality. CONCLUSIONS: The nursing practice environment and nursing quality of nurses in the COVID-19ward is generally very high. The education, working hospital level and nursing practice environment of nurses are the important factors influencing nursing quality. The relationship between nursing practice environment (include leadership and autonomy in clinical practice, staff relationships with physicians, control over practice, communication about patients, handling disagreement and conflict, internal work motivation and cultural sensitivity) and nursing quality is positive. It is suggested that the hospital should pay special attention to and improve nursing practice environment in order to improve nursing quality when setting up temporary ward in the future epidemic period of infectious diseases, ensure patient safety. IMPACT ON CLINICAL PRACTICE: Research shows that an active nursing practice environment can improve the quality of care, and nursing managers create and maintain an active practice environment to improve the quality of care and ensure patient safety.

11.
Biochem Biophys Res Commun ; 685: 149156, 2023 12 10.
Artículo en Inglés | MEDLINE | ID: mdl-37913694

RESUMEN

E3 ubiquitin ligases play critical roles in regulating plant response to salt stress. Arabidopsis Tóxicos En Levadura (ATL) is a subfamily of RING-type E3 ubiquitin ligases widely conserved in plant species. ATL genes have been shown to be involved in regulating plant response to biotic or abiotic stresses. We previously found that a pair of ATL genes, ATL31 and ATL6 positively regulated plant innate immunity. However, whether ATL31/6 are also involved in salt stress response remains to be investigated. Here, we demonstrate that ATL31/6 are induced by salt stress. The atl31 atl6 double mutant exhibits increased salt tolerance compared to the wild-type plants, while transgenic plants overexpressing ATL31 are more salt-sensitive. Notably, ATL31 and ATL6 do not participate in the abscisic acid (ABA) response. Furthermore, NaCl treatment induces the proteasomal degradation of ATL31 proteins. Together, we demonstrate that ATL31/6 positively regulate plant tolerance to salt stress, which is independent of ABA, and our work reveals that ATL31/6 are involved in regulating plant response to both biotic and abiotic stress.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Ácido Abscísico/metabolismo , Arabidopsis/metabolismo , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Regulación de la Expresión Génica de las Plantas , Plantas Modificadas Genéticamente/metabolismo , Estrés Salino/genética , Estrés Fisiológico , Ubiquitina/metabolismo , Ubiquitina-Proteína Ligasas/genética , Ubiquitina-Proteína Ligasas/metabolismo
12.
New Phytol ; 237(4): 1270-1284, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36333900

RESUMEN

Plant innate immunity is tightly regulated. The Arabidopsis thaliana CALCIUM-DEPENDENT PROTEIN KINASE28 (CPK28) functions as a negative immune regulator. We recently demonstrate that CPK28 undergoes ubiquitination that is mediated by two ubiquitin ligases, ARABIDOPSIS TÓXICOS EN LEVADURA31 (ATL31) and ATL6, which results in its proteasomal degradation. CPK28 undergoes both intermolecular autophosphorylation and BIK1-mediated phosphorylation. However, whether the phosphorylation status of CPK28 dictates its ubiquitination and degradation is unknown yet. We used immune response analysis, transient degradation system, ubiquitination assays, co-immunoprecipitation, and other biochemical and genetic approaches to investigate the effect of the phosphorylation status of CPK28 on its degradation mediated by ATL31/6. We found the mutation of Ser318 (a site of both intermolecular autophosphorylation and BIK1-mediated phosphorylation) or a BIK1 phosphorylation site on CPK28 leads to its compromised association with ATL31 and reduced ubiquitination by ATL31. Moreover, we confirm the previous findings that two CPK28s can interact with each other, which likely promotes the intermolecular autophosphorylation. We also show that the phosphorylation status of CPK28 in turn affects its intermolecular association. We demonstrate that the phosphorylation status of CPK28 affects its degradation mediated by ATL31. Our findings reveal a link between phosphorylation of CPK28 and its ubiquitination and degradation.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Arabidopsis/metabolismo , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Fosforilación , Proteínas Serina-Treonina Quinasas/metabolismo , Estabilidad Proteica , Ubiquitina-Proteína Ligasas/genética , Ubiquitina-Proteína Ligasas/metabolismo , Ubiquitinación
13.
Clin Genet ; 104(5): 516-527, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37461298

RESUMEN

Premature ovarian insufficiency (POI) is a clinical syndrome of ovarian dysfunction characterized by cessation of menstruation occurring before the age of 40 years. The genetic causes of idiopathic POI remain unclear. Here we recruited a POI patient from a consanguineous family to screen for potential pathogenic variants associated with POI. Genetic variants of the pedigree were screened using whole-exome sequencing analysis and validated through direct Sanger sequencing. A homozygous variant in TUFM (c.524G>C: p.Gly175Ala) was identified in this family. TUFM (Tu translation elongation factor, mitochondrial) is a nuclear-encoded mitochondrial protein translation elongation factor that plays a critical role in maintaining normal mitochondrial function. The variant position was highly conserved among species and predicted to be disease causing. Our in vitro functional studies demonstrated that this variant causes decreased TUFM protein expression, leading to mitochondrial dysfunction and impaired autophagy activation. Moreover, we found that mice with targeted Tufm variant recapitulated the phenotypes of human POI. Thus, this is the first report of a homozygous pathogenic TUFM variant in POI. Our findings highlighted the essential role of mitochondrial genes in folliculogenesis and ovarian function maintenance.


Asunto(s)
Insuficiencia Ovárica Primaria , Adulto , Animales , Femenino , Humanos , Ratones , Consanguinidad , Homocigoto , Mitocondrias/genética , Mitocondrias/patología , Mutación , Insuficiencia Ovárica Primaria/patología
14.
J Fluoresc ; 2023 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-37688669

RESUMEN

Two series of unsymmetric α-cyanostilbene-based tetracatenars containing three hexadecyl chains at one end and one alkyl chain with varying lengths at the other end were prepared by using Suzuki coupling and Knoevenagel reactions. These tetracatenars with the terminal three hexadecyl chains, which are adjacent to the cyano group are non-mesogens, whereas the isomers with one alkyl chain, which is adjacent to the cyano group display transition from non-mesogens to monotropic hexagonal columnar liquid crystal upon elongation of the alkyl chain. This transition could be attributed to that the three hexadecyl chains which are adjacent to the cyano group decrease the interactions between π-conjugated rigid cores, hindering the formation of mesophase. In addition, weak slovatochromism implies weak ICT in both series tetracatenars. Both series isomers exhibit distinct AIE characteristics attributing to the presence of α-cyanostilbene, which could induce stereoisomerism and restricted intermolecular rotation in the aggregated state. Different mechanochromism behaviors could be achieved due to the positional isomerism of terminal alkyl chains. Therefore, tuning the position of terminal alkyl chains could give rise to distinct changes in the molecular aggregate, which provides a scheme to build multifunctional materials with diverse potentials.

15.
Int Urogynecol J ; 34(1): 247-254, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36112181

RESUMEN

INTRODUCTION AND HYPOTHESIS: As a consequence of the evolution of surgery in reconstructive techniques, cervicovaginal reconstruction has become an option for patients diagnosed with congenital cervical and vaginal atresia. This study was aimed at comparing long-term clinical and anatomical results in patients who had cervicovaginal reconstruction with either a small intestinal submucosa (SIS) graft or a split-thickness skin (STS) graft. METHODS: This was a retrospective study of 34 patients who underwent cervicovaginal reconstruction using SIS or STS grafts between January 2012 and August 2017. The patients' postoperative resumption of menstruation, vaginal length, body image satisfaction, and sexual satisfaction were assessed. Quantitative and categorical variables were compared using Student's t test and Chi-squared test respectively. RESULTS: The mean follow-up time was 81.29 ± 20.69 months. The SIS group had a shorter surgery time, an earlier return to work, and a higher cost (p < 0.05). All patients resumed menstruation, but 4 patients were diagnosed with cervical stricture. There was no significant difference in the length of the neovagina, and the satisfaction score of the sexual life of patients and their sexual partners was similar in both groups. Patients in the SIS group showed greater satisfaction with their bodies (p < 0.001). One patient in the SIS group got pregnant via assisted-reproduction techniques. CONCLUSIONS: Cervicovaginal reconstruction using SIS or STS grafts is an effective treatment for patients diagnosed with congenital cervical and vaginal atresia. The method of SIS graft is simpler, with less surgical injury and greater body satisfaction, but it is more expensive.


Asunto(s)
Procedimientos de Cirugía Plástica , Femenino , Humanos , Estudios de Seguimiento , Estudios Retrospectivos , Intestino Delgado/cirugía , Cuello del Útero/cirugía , Vagina/cirugía , Vagina/anomalías
16.
BMC Geriatr ; 23(1): 612, 2023 09 29.
Artículo en Inglés | MEDLINE | ID: mdl-37773113

RESUMEN

BACKGROUND: This study aims to identify the current status and factors influencing self-management of knee discomfort in middle-aged and elderly people in China. METHODS: A stratified multistage cluster sampling method was used to select participants from communities in China from January 15 to May 31, 2020. A cross-sectional survey was conducted using the general information questionnaire and the Knee Joint Discomfort Self-management Scale. Univariate analysis and a generalized linear model were used to analyze the factors influencing self-management. RESULTS: The prevalence of knee discomfort was 77%. Moderate to severe discomfort accounted for 30.5%. The average item score of self-management in 9640 participants was 1.98 ± 0.76. The highest and lowest levels were: 'daily life management' and 'information management'. Gender, ethnicity, education level, economic source, chronic disease, knee pain in the past month, and the degree of self-reported knee discomfort were significant predictors of self-management. CONCLUSION: The self-management of knee discomfort in middle-aged and elderly people is poor, and the degree of discomfort is a significant predictor. Healthcare providers should consider socioeconomic demographic and clinical characteristics to help these individuals improve their self-management skills. Attention should also be given to improving their ability to access health information and making them aware of disease risks.


Asunto(s)
Automanejo , Anciano , Humanos , Persona de Mediana Edad , Estudios Transversales , Articulación de la Rodilla , Dolor , Encuestas y Cuestionarios , China/epidemiología
17.
Proc Natl Acad Sci U S A ; 117(35): 21766-21774, 2020 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-32817516

RESUMEN

Leaf architecture directly determines canopy structure, and thus, grain yield in crops. Leaf droopiness is an agronomic trait primarily affecting the cereal leaf architecture but the genetic basis and underlying molecular mechanism of this trait remain unclear. Here, we report that DROOPY LEAF1 (DPY1), an LRR receptor-like kinase, plays a crucial role in determining leaf droopiness by controlling the brassinosteroid (BR) signaling output in Setaria, an emerging model for Panicoideae grasses. Loss-of-function mutation in DPY1 led to malformation of vascular sclerenchyma and low lignin content in leaves, and thus, an extremely droopy leaf phenotype, consistent with its preferential expression in leaf vascular tissues. DPY1 interacts with and competes for SiBAK1 and as a result, causes a sequential reduction in SiBRI1-SiBAK1 interaction, SiBRI1 phosphorylation, and downstream BR signaling. Conversely, DPY1 accumulation and affinity of the DPY1-SiBAK1 interaction are enhanced under BR treatment, thus preventing SiBRI1 from overactivation. As such, those findings reveal a negative feedback mechanism that represses leaf droopiness by preventing an overresponse of early BR signaling to excess BRs. Notably, plants overexpressing DPY1 have more upright leaves, thicker stems, and bigger panicles, suggesting potential utilization for yield improvement. The maize ortholog of DPY1 rescues the droopy leaves in dpy1, suggesting its conserved function in Panicoideae. Together, our study provides insights into how BR signaling is scrutinized by DPY1 to ensure the upward leaf architecture.


Asunto(s)
Brasinoesteroides/metabolismo , Hojas de la Planta/metabolismo , Setaria (Planta)/genética , Regulación de la Expresión Génica de las Plantas/genética , Mutación , Fenotipo , Fosforilación , Hojas de la Planta/genética , Hojas de la Planta/crecimiento & desarrollo , Proteínas de Plantas/genética , Plantas Modificadas Genéticamente/metabolismo , Poaceae/genética , Poaceae/metabolismo , Setaria (Planta)/metabolismo , Transducción de Señal/fisiología , Factores de Transcripción/metabolismo
18.
Clin Exp Ophthalmol ; 51(7): 673-684, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37468126

RESUMEN

BACKGROUND: We performed a systematic review and meta-analysis to investigate the links between different sleep characteristics and risk of myopia. METHODS: PubMed, EMBASE, Web of Science, the Cochrane Library, PsycINFO, Wanfang, and CNKI were searched from inception to August 26, 2022, without any language restriction. Cross-sectional, case-control, or cohort studies that explored the association between sleep duration, sleep quality, bedtime, and myopia were included. NIH quality assessment tools were used to assess the methodological quality of included studies. Random-effect or fixed-effect models were used to pool the associations according to whether there is heterogeneity. RESULTS: A total of 31 studies with 205 907 participants were included in the final analysis (25 studies reporting sleep duration; four studies examining sleep quality and six studies evaluating bedtime). Compared to reference sleep duration, sufficient sleep duration (OR = 0.63, 95% CI = 0.51-0.78) was associated with a lower risk of myopia, and short sleep duration (OR = 1.66, 95% CI = 1.14-2.42) was associated with a higher risk of myopia. In addition, poor sleep quality (OR = 1.24, 95% CI = 1.05-1.47) was associated with a higher risk of myopia while late bedtime (OR = 1.30, 95% CI = 0.96-1.75) was not significantly associated with an increased risk of myopia. CONCLUSIONS: Alteration in sleep duration and sleep quality may influence the risk of myopia. Well-designed cohort studies are needed in future investigations to identify a causal relationship between different sleep characteristics and myopia.

19.
BMC Med Inform Decis Mak ; 23(1): 126, 2023 07 18.
Artículo en Inglés | MEDLINE | ID: mdl-37464410

RESUMEN

BACKGROUND: The ovarian reserve is a reservoir for reproductive potential. In clinical practice, early detection and treatment of premature ovarian decline characterized by abnormal ovarian reserve tests is regarded as a critical measure to prevent infertility. However, the relevant data are typically stored in an unstructured format in a hospital's electronic medical record (EMR) system, and their retrieval requires tedious manual abstraction by domain experts. Computational tools are therefore needed to reduce the workload. METHODS: We presented RegEMR, an artificial intelligence tool composed of a rule-based natural language processing (NLP) extractor and a knowledge-based disease scoring model, to automatize the screening procedure of premature ovarian decline using Chinese reproductive EMRs. We used regular expressions (REs) as a text mining method and explored whether REs automatically synthesized by the genetic programming-based online platform RegexGenerator + + could be as effective as manually formulated REs. We also investigated how the representativeness of the learning corpus affected the performance of machine-generated REs. Additionally, we translated the clinical diagnostic criteria into a programmable disease diagnostic model for disease scoring and risk stratification. Four hundred outpatient medical records were collected from a Chinese fertility center. Manual review served as the gold standard, and fivefold cross-validation was used for evaluation. RESULTS: The overall F-score of manually built REs was 0.9444 (95% CI 0.9373 to 0.9515), with no significant difference (paired t test p > 0.05) compared with machine-generated REs that could be affected by training set sizes and annotation portions. The extractor performed effectively in automatically tracing the dynamic changes in hormone levels (F-score 0.9518-0.9884) and ultrasonographic measures (F-score 0.9472-0.9822). Applying the extracted information to the proposed diagnostic model, the program obtained an accuracy of 0.98 and a sensitivity of 0.93 in risk screening. For each specific disease, the automatic diagnosis in 76% of patients was consistent with that of the clinical diagnosis, and the kappa coefficient was 0.63. CONCLUSION: A Chinese NLP system named RegEMR was developed to automatically identify high risk of early ovarian aging and diagnose related diseases from Chinese reproductive EMRs. We hope that this system can aid EMR-based data collection and clinical decision support in fertility centers.


Asunto(s)
Inteligencia Artificial , Procesamiento de Lenguaje Natural , Insuficiencia Ovárica Primaria , Humanos , Registros Electrónicos de Salud , Lenguaje , Insuficiencia Ovárica Primaria/diagnóstico , Femenino
20.
Int J Mol Sci ; 25(1)2023 Dec 26.
Artículo en Inglés | MEDLINE | ID: mdl-38203495

RESUMEN

Climate change and the increasing frequency of high temperature (HT) events are significant threats to global crop yields. To address this, a comprehensive understanding of how plants respond to heat shock (HS) is essential. Signaling pathways involving calcium (Ca2+), a versatile second messenger in plants, encode information through temporal and spatial variations in ion concentration. Ca2+ is detected by Ca2+-sensing effectors, including channels and binding proteins, which trigger specific cellular responses. At elevated temperatures, the cytosolic concentration of Ca2+ in plant cells increases rapidly, making Ca2+ signals the earliest response to HS. In this review, we discuss the crucial role of Ca2+ signaling in raising plant thermotolerance, and we explore its multifaceted contributions to various aspects of the plant HS response (HSR).


Asunto(s)
Señalización del Calcio , Termotolerancia , Respuesta al Choque Térmico , Sistemas de Mensajero Secundario , Calcio de la Dieta
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