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1.
Mol Carcinog ; 63(4): 742-756, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38270247

RESUMEN

Nuclear factor erythroid 2-related factor 2 (Nrf2) significantly contributes to drug resistance of cancer cells, and Nrf2 inhibitors have been vigorously pursued. Repurposing of existing drugs, especially anticancer drugs, is a straightforward and promising strategy to find clinically available Nrf2 inhibitors and effective drug combinations. Topoisomerase inhibitors SN-38 (an active metabolite of irinotecan), topotecan, mitoxantrone, and epirubicin were found to significantly suppress Nrf2 transcriptional activity in cancer cells. SN-38, the most potent one among them, significantly inhibited the transcription of Nrf2, as indicated by decreased mRNA level and binding of RNA polymerase II to NFE2L2 gene, while no impact on Nrf2 protein or mRNA degradation was observed. SN-38 synergized with Nrf2-sensitive anticancer drugs such as mitomycin C in killing colorectal cancer cells, and irinotecan and mitomycin C synergistically inhibited the growth of SW480 xenografts in nude mice. Our study identified SN-38 and three other topoisomerase inhibitors as Nrf2 inhibitors, revealed the Nrf2-inhibitory mechanism of SN-38, and indicate that clinically feasible drug combinations could be designed based on their interactions with Nrf2 signaling.


Asunto(s)
Antineoplásicos , Neoplasias Colorrectales , Animales , Ratones , Humanos , Irinotecán/farmacología , Camptotecina/farmacología , Mitomicina/farmacología , Ratones Desnudos , Factor 2 Relacionado con NF-E2/genética , Antineoplásicos/farmacología , Resistencia a Antineoplásicos , Inhibidores de Topoisomerasa/farmacología , Combinación de Medicamentos , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/genética
2.
Eur J Neurol ; : e16342, 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38757755

RESUMEN

BACKGROUND AND PURPOSE: Caveolin-1 (Cav-1) is reported to mediate blood-brain barrier integrity after ischaemic stroke. Our purpose was to assess the role of circulating Cav-1 levels in predicting symptomatic intracranial haemorrhage (sICH) amongst ischaemic stroke patients after endovascular thrombectomy (EVT). METHODS: Patients with large-vessel occlusive stroke after EVT from two stroke centres were prospectively included. Serum Cav-1 level was tested after admission. sICH was diagnosed according to the Heidelberg Bleeding Classification. RESULTS: Of 325 patients (mean age 68.6 years; 207 men) included, 47 (14.5%) were diagnosed with sICH. Compared with patients without sICH, those with sICH had a lower concentration of Cav-1. After adjusting for potential confounders, multivariate regression analysis demonstrated that the increased Cav-1 level was associated with a lower sICH risk (odds ratio 0.055; 95% confidence interval 0.005-0.669; p = 0.038). Similar results were obtained when Cav-1 levels were analysed as a categorical variable. Using a logistic regression model with restricted cubic splines, a linear and negative association of Cav-1 concentration was found with sICH risk (p = 0.001 for linearity). Furthermore, the performance of the conventional risk factors model in predicting sICH was substantially improved after addition of the Cav-1 levels (integrated discrimination index 2.7%, p = 0.002; net reclassification improvement 39.7%, p = 0.007). CONCLUSIONS: Our data demonstrate that decreased Cav-1 levels are related to sICH after EVT. Incorporation of Cav-1 into clinical decision-making may help to identify patients at a high risk of sICH and warrants further consideration.

3.
Arch Womens Ment Health ; 27(2): 179-190, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37947903

RESUMEN

Intimate partner violence (IPV) against women presents a major public health challenge, especially in low-income and middle-income countries (LMICs), and its relationship with poor offspring growth is emerging but remains understudied. This study aimed to explore the impact of maternal exposure to IPV on offspring growth based on different approaches in LMICs. We conducted a population-based cross-sectional study using the most recent Demographic and Health Surveys from 32 LMICs; 81,652 mother-child dyads comprising women aged from 15 to 49 years with children aged 0 to 59 months were included. We applied logistic regression models to explore the independent and cumulative relationship between IPV, including emotional, physical, and sexual IPV, with poor child growth status, including stunting and wasting; 52.6% of mothers were under the age of 30 years with a 36% prevalence of any lifetime exposure to IPV. Maternal exposure to any IPV increased the odds of stunting, but only physical and sexual IPV were independently associated with an increased risk of stunting. Three different types of IPV exhibited a cumulative effect on stunting. Maternal exposure to physical IPV was significantly associated with an increased risk of wasting. Significant associations between maternal exposure to emotional IPV with offspring stunting and physical IPV with wasting were only observed in children aged 0 to 36 months. IPV against women remains high in LMICs and has adverse effects on offspring growth. Policy and program efforts are needed to prioritize the reduction of widespread physical and sexual IPV and to mitigate the impact of such violence.


Asunto(s)
Países en Desarrollo , Violencia de Pareja , Humanos , Femenino , Adulto , Estudios Transversales , Violencia de Pareja/psicología , Madres , Trastornos del Crecimiento/epidemiología , Prevalencia , Parejas Sexuales , Factores de Riesgo
4.
J Perianesth Nurs ; 2024 Jun 17.
Artículo en Inglés | MEDLINE | ID: mdl-38888522

RESUMEN

PURPOSE: To explore the optimal plan for the timing of indwelling gastric tube placement in oral and maxillofacial malignant tumor patients. DESIGN: A prospective randomized controlled trial. METHODS: 80 patients with oral and maxillofacial tumor were selected, and 40 patients were Pre-operative group. The remaining 40 patients were the control group, called Postoperative group. The body weight and hospital stay of the two groups were observed before and after surgery. Blood samples were taken before surgery and 1, 3 and 7 days after surgery to detect hemoglobin and plasma albumin. FINDINGS: The number of postoperative hospitalization days in the pre-operative group was significantly lower than that in the post-operative group; postoperative hemoglobin and plasma albumins were lower in both groups compared with the preoperative level. CONCLUSIONS: Preoperative nasogastric tube ensured early postoperative administration of gastrointestinal nutrition, promoted postoperative plasma albumin recovery, and shortened the days of hospitalization.

5.
Zhongguo Zhong Yao Za Zhi ; 49(5): 1266-1274, 2024 Mar.
Artículo en Zh | MEDLINE | ID: mdl-38621974

RESUMEN

This paper investigates the intervention effect and mechanism of Banxia Xiexin Decoction(BXD) on colitis-associated colorectal cancer(CAC) infected with Fusobacterium nucleatum(Fn). C57BL/6 mice were randomly divided into a control group, Fn group, CAC group [azoxymethane(AOM)/dextran sulfate sodium salt(DSS)](AOM/DSS), model group, and BXD group. Except for the control and AOM/DSS groups, the mice in the other groups were orally administered with Fn suspension twice a week. The AOM/DSS group, model group, and BXD group were also injected with a single dose of 10 mg·kg~(-1) AOM combined with three cycles of 2.5% DSS taken intragastrically. The BXD group received oral administration of BXD starting from the second cycle until the end of the experiment. The general condition and weight changes of the mice were monitored during the experiment, and the disease activity index(DAI) was calculated. At the end of the experiment, the colon length and weight of the mice in each group were compared. Hematoxylin-eosin(HE) staining was used to observe the pathological changes in the colon tissue. Enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of interleukin(IL)-2, IL-4, and IL-6 inflammatory factors in the serum. Immunohistochemistry(IHC) was used to detect the expression of Ki67, E-cadherin, and ß-catenin in the colon tissue. Western blot was used to detect the protein content of Wnt3a, ß-catenin, E-cadherin, annexin A1, cyclin D1, and glycogen synthase kinase-3ß(GSK-3ß) in the colon tissue. The results showed that compared with the control group, the Fn group had no significant lesions. The mice in the AOM/DSS group and model group had decreased body weight, increased DAI scores, significantly increased colon weight, and significantly shortened colon length, with more significant lesions in the model group. At the same time, the colon histology of the model group showed more severe adenomas, inflammatory infiltration, and cellular dysplasia. The levels of IL-4 and IL-6 in the serum were significantly increased, while the IL-2 content was significantly decreased. The IHC results showed low expression of E-cadherin and high expression of Ki67 and ß-catenin in the model group, with a decreased protein content of E-cadherin and GSK-3ß and an increased protein content of Wnt3a, ß-catenin, annexin A1, and cyclin D1. After intervention with BXD, the body weight of the mice increased; the DAI score decreased; the colon length increased, and the tumor decreased. The histopathology showed reduced tumor proliferation and reduced inflammatory infiltration. The levels of IL-6 and IL-4 in the serum were significantly decreased, while the IL-2 content was increased. Meanwhile, the expression of E-cadherin was upregulated, and that of Ki67 and ß-catenin was downregulated. The protein content of E-cadherin and GSK-3ß increased, while that of Wnt3a, ß-catenin, annexin A1, and cyclin D1 decreased. In conclusion, BXD can inhibit CAC infected with Fn, and its potential mechanism may be related to the inhibition of Fn binding to E-cadherin, the decrease in annexin A1 protein level, and the regulation of the Wnt/ß-catenin pathway.


Asunto(s)
Anexina A1 , Neoplasias Asociadas a Colitis , Colitis , Medicamentos Herbarios Chinos , Ratones , Animales , Colitis/complicaciones , Colitis/tratamiento farmacológico , Colitis/genética , beta Catenina/genética , beta Catenina/metabolismo , Ciclina D1/metabolismo , Fusobacterium nucleatum/metabolismo , Glucógeno Sintasa Quinasa 3 beta/metabolismo , Interleucina-6/genética , Interleucina-6/metabolismo , Antígeno Ki-67/metabolismo , Interleucina-2/metabolismo , Interleucina-4/metabolismo , Ratones Endogámicos C57BL , Cadherinas/metabolismo , Peso Corporal , Sulfato de Dextran/efectos adversos , Modelos Animales de Enfermedad , Azoximetano
6.
J Am Chem Soc ; 145(22): 12255-12263, 2023 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-37246940

RESUMEN

Chiral metal nanoclusters have recently been attracting great attention. It is challenging to realize asymmetric catalysis via atomically precise metal nanoclusters. Herein, we report the synthesis and total structure determination of chiral clusters [Au7Ag8(dppf)3(l-/d-proline)6](BF4)2 (l-/d-Au7Ag8). Superatomic clusters l-/d-Au7Ag8 display intense and mirror-image Cotton effects in their CD spectra. Density functional theory (DFT) calculations were carried out to understand the correlation between electronic structures and the optical activity of the enantiomeric pair. Surprisingly, the incorporation of proline in a metal nanocluster can significantly promote the catalytic efficiency in asymmetric Aldol reactions. The increase of catalytic activity of Au7Ag8 in comparison with organocatalysis by proline is attributed to the cooperative effect of the metal core and prolines, showing the advantages of the integration of metal catalysis and organocatalysis in a metal nanocluster.

7.
J Med Internet Res ; 25: e51549, 2023 11 27.
Artículo en Inglés | MEDLINE | ID: mdl-38010787

RESUMEN

BACKGROUND: Acceptance and commitment therapy (ACT) is a promising intervention for improving mental health. However, there is limited evidence on its effectiveness for nurses, particularly in web- and mobile-based intervention forms, in mitigating anxiety and depression symptoms. OBJECTIVE: In this study, we aimed to examine the effect and underlying psychological mechanisms of a web- and mobile-based ACT intervention on nurses' anxiety and depression symptoms. METHODS: In this fully decentralized randomized controlled trial, nurses were recruited nationwide across China through advertisements and posters. They were randomly assigned to either the 5-week fully automated intervention or the waiting group. Primary outcomes (anxiety and depression symptoms); secondary outcomes (sleep quality, burnout, and work performance); and mediators (psychological flexibility, cognitive defusion, mindfulness, and values) were assessed using the Wenjuanxing platform. Data collectors were blinded to the group assignments throughout the study period. RESULTS: A total of 145 nurses with anxiety or depression symptoms were randomly assigned to either the intervention group (n=72, 49.7%) or the control group (n=73, 50.3%); 97.2% (n=141) were female. During the study, 36 (24.8%) nurses were lost to follow-up, and 53 (73.6%) completed the entire intervention. Nurses in the intervention group showed significant improvement in anxiety (d=0.67, 95% CI 0.33-1.00) and depression symptoms (d=0.58, 95% CI 0.25-0.91), and the effects were sustained for 3 months after the intervention (anxiety: d=0.55, 95% CI 0.22-0.89; depression: d=0.66, 95% CI 0.33-1.00). Changes in psychological flexibility, cognitive defusion, and values mediated the effect of the intervention on anxiety and depression symptoms, while mindfulness did not have a mediating effect. CONCLUSIONS: The web- and mobile-based ACT intervention used in this study significantly improved nurses' anxiety and depression symptoms by improving psychological flexibility, cognitive defusion, and values. The results provide new ideas for hospital administrators to prevent and intervene in nurses' psychological issues. TRIAL REGISTRATION: Chinese Clinical Trial Register ChiCTR2200059218; https://tinyurl.com/4mb4t5y9.


Asunto(s)
Terapia de Aceptación y Compromiso , Atención Plena , Humanos , Femenino , Masculino , Depresión/terapia , Depresión/psicología , Ansiedad/terapia , Trastornos de Ansiedad
8.
Int J Neurosci ; 133(9): 1045-1054, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35289716

RESUMEN

PURPOSE: To investigate the characteristics of respiratory involvement in Chinese paediatric neuromuscular disease (NMD) at early stage and to explore convenient monitoring methods. MATERIALS AND METHODS: Children with NMD (age < 18) diagnosed at a multidisciplinary joint NMD clinic at Peking University First Hospital from January 2016 to April 2021 were included. Overnight polysomnography (PSG) and pulmonary function test (PFT) data were analysed, and the characteristics of four groups: congenital muscular dystrophy (CMD), congenital myopathy, spinal muscular atrophy, and Duchenne muscular dystrophy (DMD) were compared. RESULTS: A total of 83 children with NMD were referred for respiratory assessment, of who 80 children underwent PSG; 41 performed spirometry and 38, both. The duration of pulse oxygen saturation (SpO2) <90% over apnoea and hypopnoea index (AHI) was lowest in DMD and significantly different from CMD (p = 0.033). AHI was positively correlated with the oxygen desaturation index (ODI) (r = 0.929, p = 0.000). The peak expiratory flow (PEF) were positively correlated with forced vital capacity (FVC), both as actual values and percent pred, respectively (r = 0.820, 0.719, p = 0.000). ROC derived sensitivity and specificity of prediction of AHI > 15/h or duration of SpO2<90% ≥ 60 min from FVC <51% pred was 75.8% and 85.7%, respectively. CONCLUSIONS: AHI and hypoxia burden were independent factors in children with NMD in PSG and attention needed to be paid in both. FVC might be a daytime predictor for significant sleep-disordered breathing or hypoxia. Nocturnal consecutive oximetry with diurnal peak flow measurement may be convenient and effective for home monitoring at early stage of respiratory involvement.


Asunto(s)
Distrofia Muscular de Duchenne , Enfermedades Neuromusculares , Humanos , Niño , Estudios Retrospectivos , Estudios de Factibilidad , Enfermedades Neuromusculares/complicaciones , Enfermedades Neuromusculares/diagnóstico , Distrofia Muscular de Duchenne/complicaciones , Distrofia Muscular de Duchenne/diagnóstico , Hipoxia
9.
J Clin Psychol Med Settings ; 30(3): 687-696, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-36272037

RESUMEN

Nurses experience a high incidence of workplace bullying and are at a higher risk of suicide than the general population. However, there is no empirical evidence on how exposure to workplace bullying is associated with suicide ideation and attempts among nurses. Nurses were recruited from tertiary hospitals in Shandong Province, China, using stratified cluster sampling. Suicide ideation and attempts were assessed using two items, and the Workplace Psychologically Violent Behaviors Instrument was used to measure subtypes of workplace bullying. The prevalence of workplace bullying, suicide ideation, and suicide attempts was 30.6%, 16.8%, and 10.8%, respectively. After adjusting for covariates, victims of workplace bullying were at a high risk of suicide ideation and attempts. Among workplace bullying subtypes, individuals' isolation from work and direct negative behaviors were predictors of both suicide ideation and attempts; attack on personality only predicted suicide attempts. The more bullying subtypes experienced by nurses, the greater their likelihood of suicide ideation and attempts. These findings suggested that workplace bullying was associated with an increased risk of suicide ideation and attempts in nurses, with both independent and cumulative risks. Interventions should focus on prevention and managing the effects of workplace bullying among nurses.


Asunto(s)
COVID-19 , Enfermeras y Enfermeros , Estrés Laboral , Humanos , Pueblos del Este de Asia , Enfermeras y Enfermeros/psicología , Pandemias , Factores de Riesgo , Ideación Suicida
10.
Zhongguo Zhong Yao Za Zhi ; 48(9): 2334-2342, 2023 May.
Artículo en Zh | MEDLINE | ID: mdl-37282862

RESUMEN

We investigated the effects of decursin on the proliferation, apoptosis, and migration of colorectal cancer HT29 and HCT116 cells through the phosphatidylinositol 3-kinase(PI3K)/serine-threonine kinase(Akt) pathway. Decursin(10, 30, 60, and 90 µmol·L~(-1)) was used to treat HT29 and HCT116 cells. The survival, colony formation ability, proliferation, apoptosis, wound hea-ling area, and migration of the HT29 and HCT116 cells exposed to decursin were examined by cell counting kit-8(CCK8), cloning formation experiments, Ki67 immunofluorescence staining, flow cytometry, wound healing assay, and Transwell assay, respectively. Western blot was employed to determine the expression levels of epithelial cadherin(E-cadherin), neural cadherin(N-cadherin), vimentin, B-cell lymphoma/leukemia-2(Bcl-2), Bcl-2-associated X protein(Bax), tumor suppressor protein p53, PI3K, and Akt. Compared with the control group, decursin significantly inhibited the proliferation and colony number and promoted the apoptosis of HT29 and HCT116 cells, and it significantly down-regulated the expression of Bcl-2 and up-regulated the expression of Bax. Decursin inhibited the wound healing and migration of the cells, significantly down-regulated the expression of N-cadherin and vimentin, and up-regulated the expression of E-cadherin. In addition, it significantly down-regulated the expression of PI3K and Akt and up-regulated that of p53. In summary, decursin may regulate epithelial-mesenchymal transition(EMT) via the PI3K/Akt signaling pathway, thereby affecting the proliferation, apoptosis, and migration of colorectal cancer cells.


Asunto(s)
Neoplasias Colorrectales , Proteínas Proto-Oncogénicas c-akt , Humanos , Proteínas Proto-Oncogénicas c-akt/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Fosfatidilinositol 3-Quinasas/genética , Fosfatidilinositol 3-Quinasas/metabolismo , Proteína X Asociada a bcl-2 , Vimentina/metabolismo , Proliferación Celular , Transducción de Señal , Apoptosis , Línea Celular Tumoral , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/genética , Cadherinas/genética , Movimiento Celular
11.
Zhongguo Zhong Yao Za Zhi ; 48(22): 6142-6153, 2023 Nov.
Artículo en Zh | MEDLINE | ID: mdl-38114221

RESUMEN

This study aims to investigate the intervention effect and mechanism of Tongxie Yaofang in regulating tumor-associated macrophage polarization on colorectal cancer under chronic stress. BALB/C mice were randomized into blank, control, model, mifepristone, and low-, medium-, and high-dose Tongxie Yaofang groups. The other groups except the blank and model groups were subjected to chronic restraint stress and subcutaneous implantation of colon cancer cells for the modeling of colon cancer under stress. Du-ring this period, the body mass and tumor size of each group of mice were recorded. The degree of depression in mice was assessed by behavioral changes. Enzyme-linked immunosorbent assay was employed to determine the levels of cortisol(CORT), 5-hydroxytryptamine(5-HT), norepinephrine(NE), M1-associated inflammatory cytokines [interleukin(IL)-1ß, IL-12, and tumor necrosis factor(TNF)-α], and M2-associated inflammatory cytokines(IL-4 and IL-10) in the serum. The tumor growth of mice in each group was regularly monitored by in vivo imaging. The histopathological changes of tumors in each group of mice were observed by hematoxylin-eosin staining. The proportions of CD86 and CD206 in the tumor tissue were detected by flow cytometry and immunofluorescence staining. Western blot was employed to determine the protein levels of Janus kinase(JAK)1, JAK2, JAK3, signal transducer and activator of transcription(STAT)3, and STAT6 in the tumor tissue. The results showed that chronic stress increased the immobility time of mice, elevated the serum levels of CORT, IL-4, and IL-10, lowered the levels of 5-HT, NE, IL-1ß, IL-12, and TNF-α, and promoted the growth of subcutaneous tumors. The tumor cells in the tumor tissue grew actively, with obvious atypia and up-regulated protein levels of CD206, JAK1, JAK2, JAK3, STAT3, and STAT6, and down-regulated protein level of CD86. The treatment with Tongxie Yaofang shortened the immobility time of mice, lowered the serum levels of CORT, IL-4, and IL-10, elevated the serum levels of 5-HT, NE, IL-1ß, IL-12, and TNF-α, and inhibited the growth of subcutaneous tumors in mice. Moreover, the treatment caused different degrees of necrosis in the tumor tissues, down-regulated the protein levels of CD206, JAK1, JAK2, JAK3, STAT3, and STAT6, and up-regulated the protein level of CD86. In summary, Tongxie Yaofang can promote the transformation of M2 macrophages to M1 macrophages and change the tumor microenvironment under chronic stress to inhibit the development of colorectal cancer, which may be related to the JAK/STAT signaling pathway.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , Ratones , Animales , Interleucina-10 , Macrófagos Asociados a Tumores/metabolismo , Factor de Necrosis Tumoral alfa , Interleucina-4 , Serotonina , Ratones Endogámicos BALB C , Citocinas/metabolismo , Interleucina-12 , Microambiente Tumoral
12.
J Assist Reprod Genet ; 39(5): 1087-1094, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35389156

RESUMEN

PURPOSE: To investigate the relationship between different duration of estrogen administration and live birth rate (LBR) after autologous single frozen blastocyst transfer with hormone replacement therapy. METHODS: A total of 2026 frozen blastocyst transfer cycles in the assisted reproductive center of northwest women and children's hospital from January, 2017, to August, 2020, were retrospectively analyzed. All the cycles were allocated into 3 groups according to the duration of estrogen administration: group A, 11-14 days (n = 346); group B, 15-18 days (n = 1191), and group C, ≥ 19 days (n = 489). Baseline data, clinical, and perinatal outcomes of the three groups were compared. A multivariate regression model was constructed to analyze the association between duration of estradiol administration and clinical outcomes. RESULTS: We did not observe a significant association between duration of estrogen supplementation and LBR in group B (adjusted odds ratio [aOR] 1.14; 95% confidence interval [CI], 0.89-1.45) or group C (aOR 1.16; 95% CI, 0.86-1.56) patients with group A as the reference group, through logistic regression analysis. No statistical differences were observed in perinatal outcomes among the three groups. CONCLUSION: The duration of estrogen administration was not associated with the likelihood of live birth in women undergoing frozen-thawed autologous single-blastocyst transfer.


Asunto(s)
Criopreservación , Transferencia de Embrión , Blastocisto , Niño , Suplementos Dietéticos , Estrógenos , Femenino , Humanos , Nacimiento Vivo , Embarazo , Índice de Embarazo , Estudios Retrospectivos
13.
J Adv Nurs ; 78(7): 2042-2054, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34850448

RESUMEN

AIMS: The objective of this study is to explore and compare the strength of associations between work-related potential traumatic events and burnout among operating room nurses based on three different approaches. DESIGN: The study followed a multisite cross-sectional design. METHODS: A stratified sampling method was conducted. Cities in the Shandong Province were divided into four groups, and two tertiary hospitals were randomly selected from all tertiary hospitals in cities of each group. A total of 361 eligible operating room nurses provided valid questionnaires between June and November 2019. Work-related potential traumatic events questionnaire and the Chinese version of the Maslach Burnout Inventory were conducted. Associations between individual, cumulative potential traumatic events, as well as latent class analysis-derived patterns of potential traumatic experiences with burnout were examined using logistic regression analysis. RESULTS: Specific traumatic events (e.g., patients' sudden death, bullying and ostracism from colleagues) were independently associated with an increased risk of burnout. Work-related potential traumatic events had a cumulative effect on burnout, whereby operating room nurses exposed to cumulative potential traumatic events carried a higher risk for burnout than others. The "multiple work-related potential traumatic events" pattern derived by latent class analysis was related to an increased risk of high depersonalization. CONCLUSION: Operating room nurses who reported specific or multiple work-related potential traumatic events were at high risk for burnout. It is of great significance to provide qualified and timely counselling or support. IMPACT: This study is the first to focus on work-related potential traumatic events among operating room nurses and examine their relationship with burnout based on three perspectives. The findings could help identify those operating room nurses who are at high risk of burnout in clinical practice. Hospital managers should develop targeted interventions to prevent or mitigate the harmful impact of potential traumatic events on occupational health.


Asunto(s)
Agotamiento Profesional , Satisfacción en el Trabajo , Agotamiento Profesional/epidemiología , Estudios Transversales , Humanos , Quirófanos , Encuestas y Cuestionarios
14.
J Am Chem Soc ; 142(3): 1196-1199, 2020 01 22.
Artículo en Inglés | MEDLINE | ID: mdl-31903753

RESUMEN

We report in this communication the synthesis, structure, and application of a novel type of hydrocarbon belts. Starting from inexpensive and easily available resorcin[n]arenes, a closing-all-fjords strategy featuring exhaustive triflation of phenolic hydroxyl groups followed by consecutively the transition-metal-catalyzed vinylation and intramolecular olefin metathesis allowed facile construction of belt[n]arene[n]tropilidenes (n = 4, 6), which adopt double-stranded macrocyclic belt structures with unique truncated cone cavities. Selective hydrogenation reactions of olefin and benzene subunits led to diverse hydrocarbon belts with varied structures. Moreover, the resulting molecular belts acted as synthetic host materials to include selectively small molecules such as nitromethane and p-xylene.

15.
J Am Chem Soc ; 142(34): 14432-14436, 2020 08 26.
Artículo en Inglés | MEDLINE | ID: mdl-32786737

RESUMEN

We report herein a strategy to construct enantiopure inherently chiral macrocycles, ABCD-type heteracalix[4]aromatics, through a catalytic enantioselective intramolecular C-N bond forming reaction. A chiral ligand-palladium complex was found to efficiently induce the inherent chirality of molecules during the macrocyclization process with ee values up to >99%. The resulting ABCD-type heteracalix[4]aromatics displayed excellent and pH-triggered switchable electronic circular dichroism and circularly polarized luminescence properties.


Asunto(s)
Calixarenos/síntesis química , Complejos de Coordinación/química , Compuestos Macrocíclicos/síntesis química , Paladio/química , Calixarenos/química , Catálisis , Concentración de Iones de Hidrógeno , Ligandos , Compuestos Macrocíclicos/química , Estructura Molecular , Estereoisomerismo
16.
J Card Surg ; 35(4): 860-867, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32058613

RESUMEN

Coronary artery bypass graft (CABG) is one of the most commonly performed cardiac surgeries in the world. CABG using the internal mammary artery (IMA) remains the gold standard intervention for myocardial intervention in multivessel coronary artery disease. IMA harvesting can be performed with various techniques and approaches: pedicled vs skeletonized harvesting technique as well as approaches such as conventional sternotomy, robotic and endoscopic approaches. While each technique and approach have their respective advantages and disadvantages, evidence remains varied between cohorts. Traditionally, IMA has been used as an in situ conduit; however, IMA free grafts also provide satisfactory outcomes in certain situations. This literature review aims to explore the efficacy of different techniques and approaches of IMA harvesting and grafting. With evidence compiled, this will provide an overview of the complexity of CABG and locate gaps in current literature to direct future research.


Asunto(s)
Puente de Arteria Coronaria/métodos , Enfermedad de la Arteria Coronaria/cirugía , Arterias Mamarias/cirugía , Revascularización Miocárdica/métodos , Recolección de Tejidos y Órganos/métodos , Endoscopía/métodos , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Esternotomía/métodos , Recolección de Tejidos y Órganos/tendencias , Trasplantes
17.
Sensors (Basel) ; 20(18)2020 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-32962133

RESUMEN

Weight is an important indicator of the growth and development of dairy cows. The traditional static weighing methods require considerable human and financial resources, and the existing dynamic weighing algorithms do not consider the influence of the cow motion state on the weight curve. In this paper, a dynamic weighing algorithm for cows based on a support vector machine (SVM) and empirical wavelet transform (EWT) is proposed for classification and analysis. First, the dynamic weight curve is obtained by using a weighing device placed along a cow travel corridor. Next, the data are preprocessed through valid signal acquisition, feature extraction, and normalization, and the results are divided into three active degrees during motion for low, medium, and high grade using the SVM algorithm. Finally, a mean filtering algorithm, the EWT algorithm, and a combined periodic continuation-EWT algorithm are used to obtain the dynamic weight values. Weight data were collected for 910 cows, and the experimental results displayed a classification accuracy of 98.6928%. The three algorithms were used to calculate the dynamic weight values for comparison with real values, and the average error rates were 0.1838%, 0.6724%, and 0.9462%. This method can be widely used at farms and expand the current knowledgebase regarding the dynamic weighing of cows.


Asunto(s)
Peso Corporal , Máquina de Vectores de Soporte , Análisis de Ondículas , Algoritmos , Animales , Bovinos , Femenino , Humanos , Movimiento (Física)
18.
J Fish Biol ; 97(2): 479-489, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32419217

RESUMEN

Threadfin porgy Evynnis cardinalis is both a dominant fish species and an important fishing target in bottom trawl fisheries in the Beibu Gulf, South China Sea. It was listed as endangered (EN) in a recent International Union for Conservation of Nature (IUCN) red list. Despite its economic importance and endangered status, limited research on its biological characteristics and spatial-temporal distribution has been undertaken this last decade, creating uncertainty in current conservation and management. We analyse this species' spatial distribution characteristics using data from four seasonal bottom trawl surveys in 2014-2015, and report average catch per unit effort to vary seasonally, from 49.1 to 594.5 ind h-1 . Growth, mortality and sexual maturity are reported for four time periods based on data from bottom trawl fishery surveys over 1961-1962, 1998-1999, 2006, and 2014-2015. Length frequency distributions changed from bimodal to unimodal, and the female-to-male ratio increased. Mean body length and length at first maturity decreased, whereas the growth coefficient increased, indicating miniaturization, early sexual maturity and accelerated growth, respectively. We report sparid catch to have first exceeded maximum sustainable yield in 2001, and to have remained overfished from 2010 to 2015. Since the 1980s, low-trophic-level fishes such as E. cardinalis have replaced high-trophic-level fishes such as Crimson snapper Lutjanus erythropterus to become dominant species. As catches have increased substantially, these species have been faced with overfishing, driving the ecosystem into an unstable state.


Asunto(s)
Especies en Peligro de Extinción , Perciformes/fisiología , Animales , China , Conservación de los Recursos Naturales , Ecosistema , Femenino , Explotaciones Pesqueras/estadística & datos numéricos , Océanos y Mares , Dinámica Poblacional
19.
J Clin Lab Anal ; 33(6): e22882, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31257645

RESUMEN

BACKGROUND: This present study aimed to investigate the correlation of long non-coding RNA THRIL (lnc-THRIL) with acute respiratory distress syndrome (ARDS) risk, disease severity, inflammation, and mortality in sepsis patients. METHODS: A total of 109 sepsis patients admitted to intensive care units were consecutively recruited, and their blood samples were collected. After admission, patients were supervised and screened daily to identify the occurrence of ARDS. Clinical characteristics, routine laboratory testing, and disease severity were recorded, and all enrolled patients were followed up until death in the hospital or discharge for mortality records. Lnc-THRIL was detected by quantitative polymerase chain reaction, and inflammatory cytokine levels were measured by human enzyme-linked immunoassay. RESULTS: A total of 32 (29.4%) sepsis patients occurred ARDS and 77 (71.6%) did not. Lnc-THRIL was upregulated in ARDS group compared with non-ARDS group, and it had good value in distinguishing ARDS from non-ARDS in sepsis patients (AUC: 0.706; 95%CI: 0.602-0.809). Besides, lnc-THRIL, smoke, and chronic obstructive pulmonary disease independently predicted increased risk of ARDS. As for disease severity, lnc-THRIL positively correlated with APACHE II score and SOFA score in sepsis patients. Regarding inflammation, lnc-THRIL was positively associated with CRP, PCT, TNF-α, and IL-1ß levels in sepsis patients. Additionally, the mortality rate was 30.2%, and lnc-THRIL was upregulated in non-survivors compared with survivors, presenting a good value (AUC: 0.780; 95%CI: 0.683-0.876) in predicting mortality in sepsis patients. CONCLUSION: Lnc-THRIL predicts increased risk of ARDS and positively correlates with disease severity, inflammation, and mortality in sepsis patients.


Asunto(s)
Inflamación/genética , ARN Largo no Codificante/genética , Síndrome de Dificultad Respiratoria/genética , Sepsis/etiología , Sepsis/mortalidad , APACHE , Anciano , Citocinas/sangre , Femenino , Regulación de la Expresión Génica , Humanos , Inflamación/etiología , Unidades de Cuidados Intensivos/estadística & datos numéricos , Masculino , Persona de Mediana Edad , ARN Largo no Codificante/sangre , Factores de Riesgo , Índice de Severidad de la Enfermedad , Regulación hacia Arriba
20.
Artículo en Ruso | MEDLINE | ID: mdl-31577274

RESUMEN

OBJECTIVE: The purpose of the study is to present the results of successful treatment of a patient with traumatic arterial aneurysm of the middle cerebral artery (MCA). MATERIAL AND METHODS: A clinical case of traumatic arterial aneurysm of the M4 segment of MCA was studied. A patient with a ruptured traumatic aneurysm was transferred to Krasnogorsk City Hospital #1 for further examination and emergency surgery. RESULTS: On the sixth day after surgery, the patient was discharged in a satisfactory condition with almost complete regression of neurological symptoms. CONCLUSION: Treatment of traumatic arterial aneurysms requires an individual approach taking into account the past medical history, the clinical presentation, aneurysm location and anatomy, as well as the mechanism of injury. It is extremely difficult to suspect an arterial aneurysm after a patient had a traumatic brain injury as the incidence of this condition is very low. An angiographic study of cerebral vessels is needed for reliable diagnosis, not just solely performing standard computed tomography of the brain. Patients with this pathology require surgical intervention.


Asunto(s)
Aneurisma Roto , Aneurisma Intracraneal , Aneurisma Roto/cirugía , Humanos , Aneurisma Intracraneal/cirugía , Arteria Cerebral Media/cirugía , Tomografía Computarizada por Rayos X
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