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1.
Trends Biochem Sci ; 48(1): 5-8, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36563657

RESUMO

Scientific discovery has advanced human society in countless ways, but research requires the expenditure of energy and resources. This Scientific Life article details one laboratory's efforts to reduce the environmental impact of wet-lab research and provides a series of resources to improve lab sustainability.

2.
Dis Colon Rectum ; 67(5): 700-713, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38319746

RESUMO

BACKGROUND: A range of statistical approaches have been used to help predict outcomes associated with colectomy. The multifactorial nature of complications suggests that machine learning algorithms may be more accurate in determining postoperative outcomes by detecting nonlinear associations, which are not readily measured by traditional statistics. OBJECTIVE: The aim of this study was to investigate the utility of machine learning algorithms to predict complications in patients undergoing colectomy for colonic neoplasia. DESIGN: Retrospective analysis using decision tree, random forest, and artificial neural network classifiers to predict postoperative outcomes. SETTINGS: National Inpatient Sample database (2003-2017). PATIENTS: Adult patients who underwent elective colectomy with anastomosis for neoplasia. MAIN OUTCOME MEASURES: Performance was quantified using sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve to predict the incidence of anastomotic leak, prolonged length of stay, and inpatient mortality. RESULTS: A total of 14,935 patients (4731 laparoscopic, 10,204 open) were included. They had an average age of 67 ± 12.2 years, and 53% of patients were women. The 3 machine learning models successfully identified patients who developed the measured complications. Although differences between model performances were largely insignificant, the neural network scored highest for most outcomes: predicting anastomotic leak, area under the receiver operating characteristic curve 0.88/0.93 (open/laparoscopic, 95% CI, 0.73-0.92/0.80-0.96); prolonged length of stay, area under the receiver operating characteristic curve 0.84/0.88 (open/laparoscopic, 95% CI, 0.82-0.85/0.85-0.91); and inpatient mortality, area under the receiver operating characteristic curve 0.90/0.92 (open/laparoscopic, 95% CI, 0.85-0.96/0.86-0.98). LIMITATIONS: The patients from the National Inpatient Sample database may not be an accurate sample of the population of all patients undergoing colectomy for colonic neoplasia and does not account for specific institutional and patient factors. CONCLUSIONS: Machine learning predicted postoperative complications in patients with colonic neoplasia undergoing colectomy with good performance. Although validation using external data and optimization of data quality will be required, these machine learning tools show great promise in assisting surgeons with risk-stratification of perioperative care to improve postoperative outcomes. See Video Abstract . PREDICCIN DE LAS COMPLICACIONES QUIRRGICAS DE LA NEOPLASIA DE COLON UN ENFOQUE DE MODELO DE APRENDIZAJE AUTOMTICO: ANTECEDENTES:Se han utilizado una variedad de enfoques estadísticos para ayudar a predecir los resultados asociados con la colectomía. La naturaleza multifactorial de las complicaciones sugiere que los algoritmos de aprendizaje automático pueden ser más precisos en determinar los resultados posoperatorios al detectar asociaciones no lineales, que generalmente no se miden en las estadísticas tradicionales.OBJETIVO:El objetivo de este estudio fue investigar la utilidad de los algoritmos de aprendizaje automático para predecir complicaciones en pacientes sometidos a colectomía por neoplasia de colon.DISEÑO:Análisis retrospectivo utilizando clasificadores de árboles de decisión, bosques aleatorios y redes neuronales artificiales para predecir los resultados posoperatorios.AJUSTE:Base de datos de la Muestra Nacional de Pacientes Hospitalizados (2003-2017).PACIENTES:Pacientes adultos sometidos a colectomía electiva con anastomosis por neoplasia.INTERVENCIONES:N/A.PRINCIPALES MEDIDAS DE RESULTADO:El rendimiento se cuantificó utilizando la sensibilidad, especificidad, precisión y la característica operativa del receptor del área bajo la curva para predecir la incidencia de fuga anastomótica, duración prolongada de la estancia hospitalaria y mortalidad de los pacientes hospitalizados.RESULTADOS:Se incluyeron un total de 14.935 pacientes (4.731 laparoscópicos, 10.204 abiertos). Presentaron una edad promedio de 67 ± 12,2 años y el 53% eran mujeres. Los tres modelos de aprendizaje automático identificaron con éxito a los pacientes que desarrollaron las complicaciones medidas. Aunque las diferencias entre el rendimiento del modelo fueron en gran medida insignificantes, la red neuronal obtuvo la puntuación más alta para la mayoría de los resultados: predicción de fuga anastomótica, característica operativa del receptor del área bajo la curva 0,88/0,93 (abierta/laparoscópica, IC del 95%: 0,73-0,92/0,80-0,96); duración prolongada de la estancia hospitalaria, característica operativa del receptor del área bajo la curva 0,84/0,88 (abierta/laparoscópica, IC del 95%: 0,82-0,85/0,85-0,91); y mortalidad de pacientes hospitalizados, característica operativa del receptor del área bajo la curva 0,90/0,92 (abierto/laparoscópico, IC del 95%: 0,85-0,96/0,86-0,98).LIMITACIONES:Los pacientes de la base de datos de la Muestra Nacional de Pacientes Hospitalizados pueden no ser una muestra precisa de la población de todos los pacientes sometidos a colectomía por neoplasia de colon y no tienen en cuenta factores institucionales y específicos del paciente.CONCLUSIONES:El aprendizaje automático predijo con buen rendimiento las complicaciones postoperatorias en pacientes con neoplasia de colon sometidos a colectomía. Aunque será necesaria la validación mediante datos externos y la optimización de la calidad de los datos, estas herramientas de aprendizaje automático son muy prometedoras para ayudar a los cirujanos con la estratificación de riesgos de la atención perioperatoria para mejorar los resultados posoperatorios. (Traducción-Dr. Fidel Ruiz Healy ).


Assuntos
Neoplasias do Colo , Laparoscopia , Adulto , Humanos , Feminino , Pessoa de Meia-Idade , Idoso , Masculino , Estudos Retrospectivos , Fístula Anastomótica/diagnóstico , Fístula Anastomótica/epidemiologia , Fístula Anastomótica/etiologia , Neoplasias do Colo/cirurgia , Neoplasias do Colo/etiologia , Complicações Pós-Operatórias/etiologia , Colectomia/efeitos adversos
3.
Dev Psychopathol ; 35(4): 1597-1613, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35491696

RESUMO

This systematic review examined how anxiety symptoms and anxiety disorders relate to academic achievement, school dropout, and academic self-concept. Studies with children or adult samples were included in seven meta-analyses (ks for number of samples ranged from 5 to 156; N's for participants ranged from 780 to 37, 203). Results revealed significant but very small effect sizes for the relations between anxiety and overall academic achievement (r = -.06), language achievement (r = -.07), and math achievement (r = -.09), and a nonsignificant effect size for science achievement (r = -.01). Participants with greater anxiety were also significantly more likely to not complete high school (r = .11). They also had a poorer overall academic self-concept (r = -.25) and mathematics self-concept (r = -.30). Few methodological moderators (e.g., study design, age) were significant. Results show that anxiety does not strongly hinder academic achievement, but it is an important correlate of dropout and academic self-concept, which in turn could contribute to poorer life outcomes. Interventions and preventive programs need to consider ways to ameliorate the relations of anxiety with academic outcomes, especially school continuation and academic self-concept. Future studies should identify risk factors that may amplify these relations.


Assuntos
Sucesso Acadêmico , Criança , Adulto , Humanos , Escolaridade , Logro , Ansiedade , Transtornos de Ansiedade , Autoimagem
4.
Phys Rev Lett ; 129(19): 195002, 2022 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-36399755

RESUMO

The application of an external 26 Tesla axial magnetic field to a D_{2} gas-filled capsule indirectly driven on the National Ignition Facility is observed to increase the ion temperature by 40% and the neutron yield by a factor of 3.2 in a hot spot with areal density and temperature approaching what is required for fusion ignition [1]. The improvements are determined from energy spectral measurements of the 2.45 MeV neutrons from the D(d,n)^{3}He reaction, and the compressed central core B field is estimated to be ∼4.9 kT using the 14.1 MeV secondary neutrons from the D(T,n)^{4}He reactions. The experiments use a 30 kV pulsed-power system to deliver a ∼3 µs current pulse to a solenoidal coil wrapped around a novel high-electrical-resistivity AuTa_{4} hohlraum. Radiation magnetohydrodynamic simulations are consistent with the experiment.

5.
Artigo em Inglês | MEDLINE | ID: mdl-35852736

RESUMO

Although greater parent-child attachment security is linked with children's lower levels of depressive symptoms, little research has evaluated potential explanatory mechanisms. We investigated whether dispositional gratitude and interpersonal forgiveness explain the relation between attachment security with parents and early adolescents' depressive symptoms. Early adolescents (N = 105; M age = 12.3 years; 51% girls) completed questionnaires assessing their attachment security to mother and father figures, depressive symptoms, and dispositional gratitude, and an interview assessing interpersonal forgiveness. Results revealed that greater attachment security to mothers and fathers was associated with fewer depressive symptoms and greater levels of dispositional gratitude and interpersonal forgiveness. Further, dispositional gratitude and interpersonal forgiveness were negatively associated with depressive symptoms. Dispositional gratitude emerged as a mediator between attachment security with each parent and depressive symptoms. Our findings suggest that greater parent-child security may promote early adolescents' appreciation of positive events, which in turn may relate to fewer depressive symptoms.

6.
Heart Lung Circ ; 31(10): 1333-1340, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35934633

RESUMO

Hypertension continues to be the leading modifiable risk factor for stroke, kidney disease and cardiovascular disease, and it also plays a key role in a significant proportion of preventable deaths globally. Ambulatory blood pressure monitoring (ABPM) is an underutilised tool that augments the accurate diagnosis of hypertension. Out-of-office blood pressure measurements such as ABPM, permits the diagnosis of white coat hypertension and masked hypertension as well as determining a patient's nocturnal dipping status. These common clinical phenotypes have relevance with regard to clinical outcomes and may impact management. Overall, the diagnosis and management of hypertension presents numerous challenges, requiring the complementary use of multimodal blood pressure monitoring. Familiarity with the use of ABPM is important in the optimal management of patients, particularly as it becomes more accessible with the recent introduction of a Medicare Benefits Schedule item number.


Assuntos
Hipertensão , Hipertensão Mascarada , Idoso , Pressão Sanguínea , Monitorização Ambulatorial da Pressão Arterial , Humanos , Hipertensão Mascarada/diagnóstico , Medicare , Fatores de Risco , Estados Unidos
7.
Oecologia ; 197(3): 589-598, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34570279

RESUMO

Low temperature in winter depresses rates of photosynthesis, which, in evergreen plants, can exacerbate imbalances between light absorption and photochemical light use. Damage that could result from increased excess light absorption is minimized by the conversion of excitation energy to heat in a process known as energy dissipation, which involves the de-epoxidized carotenoids of the xanthophyll cycle. Overwintering evergreens employ sustained forms of energy dissipation observable even after lengthy periods of dark acclimation. Whereas most studies of photoprotective energy dissipation examine one or a small number of species; here, we measured the levels of sustained thermal energy dissipation of seventy conifer taxa growing outdoors under common-garden conditions at the Red Butte Garden in Salt Lake City, Utah, U.S.A. (forty nine taxa were also sampled for needle pigment content). We observed an extremely wide range of wintertime engagement of sustained energy dissipation; the percentage decrease in dark-acclimated photosystem II quantum efficiency from summer to winter ranged from 6 to 95%. Of the many pigment-based parameters measured, the magnitude of the seasonal decrease in quantum efficiency was most closely associated with the seasonal increase in zeaxanthin content expressed on a total chlorophyll basis, which explained only slightly more than one-third of the variation. We did not find evidence for a consistent wintertime decrease in needle chlorophyll content. Thus, the prevailing mechanism for winter decreases in solar-induced fluorescence emitted by evergreen forests may be decreases in fluorescence quantum yield, and wintertime deployment of sustained energy dissipation likely underlies this effect.


Assuntos
Traqueófitas , Clorofila , Fotossíntese , Complexo de Proteína do Fotossistema II/metabolismo , Estações do Ano , Traqueófitas/metabolismo
8.
J Res Adolesc ; 30(1): 4-25, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31099447

RESUMO

Romantic relationships are one of the most significant interpersonal ties in adolescence, thus understanding factors that may contribute to their formation and quality are important. The current meta-analysis focuses on links between friendship quality and romantic relationship outcomes for adolescents up to 18 years. In a series of meta-analyses (k = 28 studies, N's = 946-4,040), friendship qualities were not related to romantic involvement. However, we did find robust evidence of continuity between friendship qualities and romantic relationship qualities. Additionally, adolescents experienced more negative quality in their romantic relationships than in their friendships. These findings suggest that friendships have implications for adolescents' romantic relationships, although more research is needed on specific quality associations, and the mediators of these relations.


Assuntos
Corte/psicologia , Amigos/psicologia , Adolescente , Criança , Feminino , Humanos , Relações Interpessoais , Masculino
9.
Exp Physiol ; 104(1): 93-99, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30565770

RESUMO

NEW FINDINGS: What is the central question of this study? Is chemerin, an adipokine implicated in obesity, increased in neonates following in utero cigarette smoke exposure. What is the main finding and its importance? Chemerin mRNA expression was increased and chemerin DNA methylation was decreased in babies born to mothers who smoked during pregnancy. These data provide a potential mechanism that may be mediating the increased obesity risk in individuals that are born to mothers who smoked during pregnancy. ABSTRACT: It has been shown that in utero tobacco exposure increases offspring risk for obesity, but the mechanisms responsible for this increased risk are not well understood. Chemerin is an adipokine that regulates adipocyte differentiation. This chemokine is elevated in obese individuals and with smoke exposure, but its levels have not been measured in neonates exposed to cigarette smoke in utero. We examined chemerin gene expression [n = 31 non-smoker (NS) and 15 smoker (S)] and DNA methylation (n = 28 NS and n = 11 S) in skin collected from babies born to mothers who smoked during pregnancy as compared to non-smoking controls. Quality RNA and DNA were isolated from foreskin tissue following circumcision, and chemerin gene expression and DNA methylation were assessed. Further, in a second cohort, we utilized primary dermal foreskin fibroblasts as a functional measure of adipogenesis in living cells (n = 11 NS and n = 8 S). Cells were stimulated with an adipogenic cocktail, mRNA was isolated from cells after 14 days, and chemerin gene expression assessed via real-time PCR. Chemerin mRNA was elevated in both whole tissue (NS: 2409.20 ± 555.28 counts and S: 2966.72 ± 636.84 counts; P < 0.01) and primary fibroblasts (NS: 1.12 ± 0.55 2 Δ Δ C T and S: 2.13 ± 1.34 2 Δ Δ C T ; P = 0.04) collected from infants born to smoking mothers. Chemerin DNA methylation was reduced in whole tissue of offspring born to smokers (NS: 4.18 ± 1.28 and S: 3.07 ± 1.31%; P = 0.02), which may contribute to the increased gene expression. Neonates born to mothers who smoke during pregnancy exhibit distinct changes in chemerin gene expression in response to in utero tobacco smoke exposure which are regulated in part by epigenetic alterations.


Assuntos
Quimiocinas/metabolismo , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Efeitos Tardios da Exposição Pré-Natal/metabolismo , Fumar/efeitos adversos , Adulto , Feminino , Humanos , Recém-Nascido , Gravidez , Adulto Jovem
10.
J Appl Toxicol ; 39(12): 1672-1690, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31429102

RESUMO

Humans are exposed to the antimicrobial agent triclosan (TCS) through use of TCS-containing products. Exposed tissues contain mast cells, which are involved in numerous biological functions and diseases by secreting various chemical mediators through a process termed degranulation. We previously demonstrated that TCS inhibits both Ca2+ influx into antigen-stimulated mast cells and subsequent degranulation. To determine the mechanism linking the TCS cytosolic Ca2+ depression to inhibited degranulation, we investigated the effects of TCS on crucial signaling enzymes activated downstream of the Ca2+ rise: protein kinase C (PKC; activated by Ca2+ and reactive oxygen species [ROS]) and phospholipase D (PLD). We found that TCS strongly inhibits PLD activity within 15 minutes post-antigen, a key mechanism of TCS mast cell inhibition. In addition, experiments using fluorescent constructs and confocal microscopy indicate that TCS delays antigen-induced translocations of PKCßII, PKCδ and PKC substrate myristoylated alanine-rich C-kinase. Surprisingly, TCS does not inhibit PKC activity or overall ability to translocate, and TCS actually increases PKC activity by 45 minutes post-antigen; these results are explained by the timing of both TCS inhibition of cytosolic Ca2+ (~15+ minutes post-antigen) and TCS stimulation of ROS (~45 minutes post-antigen). These findings demonstrate that it is incorrect to assume that all Ca2+ -dependent processes will be synchronously inhibited when cytosolic Ca2+ is inhibited by a toxicant or drug. The results offer molecular predictions of the effects of TCS on other mammalian cell types, which share these crucial signal transduction elements and provide biochemical information that may underlie recent epidemiological findings implicating TCS in human health problems.


Assuntos
Anti-Infecciosos/toxicidade , Cálcio/metabolismo , Degranulação Celular/efeitos dos fármacos , Mastócitos/efeitos dos fármacos , Fosfolipase D/antagonistas & inibidores , Triclosan/toxicidade , Linhagem Celular , Humanos , Mastócitos/metabolismo , Mastócitos/patologia , Mastócitos/fisiologia , Substrato Quinase C Rico em Alanina Miristoilada/metabolismo , Proteína Quinase C/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Transdução de Sinais
11.
J Youth Adolesc ; 46(5): 1009-1021, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28213745

RESUMO

Relationships with parents and friends are important contexts for developing romantic relationship skills. Parents and friends may influence both the timing of involvement and the quality of romantic relationships. Three models of the joint influence of parents and friends (direct effects model, mediation model, and moderator model) have been proposed. The present study uses data from a longitudinal study (n = 1012; 49.8% female; 81.1% Caucasian) to examine how attachment and friendship quality at age 10 years predict romantic relationship involvement and quality at ages 12 and 15 years. The results supported the direct effects model, with attachment and friendship quality uniquely predicting different romantic relationship outcomes. The findings provide further support for the important influence of family and friends on early romantic relationships.


Assuntos
Corte/psicologia , Amigos/psicologia , Apego ao Objeto , Relações Pais-Filho , Adolescente , Criança , Feminino , Humanos , Relações Interpessoais , Estudos Longitudinais , Masculino , Pais , Psicologia do Adolescente
12.
Brain Behav Immun ; 38: 66-76, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24412646

RESUMO

Cytotoxic chemotherapeutic agents often induce a cluster of cancer treatment related symptoms (CTRS). The purpose of this study was to develop a mouse model of CTRS to examine the role of IL-1ß and TNF-α signaling in the genesis of these symptoms. CTRS (change in wheel running activity, food intake, and body weight from baseline) were examined in wild type (WT) mice or mice lacking the TNF-α p55 (type 1) receptor (TNFR1-/-) and/or IL-1ß type 1 receptor (IL-1R1-/-) injected with four doses of cyclophosphamide/Adriamycin/5-fluorouracil (CAF) at 20-day intervals. Inflammatory cytokines in blood and tissues were measured using multiplex immunoassays and quantitative RT-PCR. ANOVA was used to examine differences between genotype and/or treatment group. Kaplan-Meier analysis was used to estimate survival rate. CAF rapidly increased IL-1ß and TNF-α signaling in WT mice. CAF induced acute CTRS immediately following drug injection which returned to baseline prior to the next CAF dose. Persistent CTRS were evident 3weeks after the 4th CAF dose. Acute but not persistent CTRS were associated with increased levels of IL-7, IL-9, KC, MCP-1, GCSF, and IP-10. This CAF induced inflammatory response was blunted in IL-1R1 deficient mice and absent in IL-1R1/TNFR1-deficient mice. IL-1R1-/- mice showed an identical pattern of CTRS to their WT counterparts. The assessment of CTRS in IL-1R1/TNF-R1-deficient mice was precluded by severe toxicity. Our data suggest that an important function of the IL-1ß and TNF-α driven inflammatory cascade is to promote recovery following exposure to cytotoxic agents.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/toxicidade , Interleucina-1beta/metabolismo , Receptores de Citocinas/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Animais , Ciclofosfamida/toxicidade , Doxorrubicina/toxicidade , Feminino , Fluoruracila/toxicidade , Camundongos , Camundongos Knockout , Receptores Tipo I de Interleucina-1/genética , Receptores Tipo I de Fatores de Necrose Tumoral/genética , Transdução de Sinais
13.
J Genet Couns ; 23(6): 968-75, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24788194

RESUMO

Diminished ovarian reserve (DOR) and premature ovarian failure are associated with elevated FMR1 CGG repeat alleles. We assessed pretest attitudes about potentially carrying the FMR1 premutation (FXP) (>55 CGG repeats) among reproductive age women compared with attitudes after learning their non-carrier status. Ninety-two women with DOR, regular menses and no family history of Fragile X Syndrome underwent FMR1 testing and completed attitudinal questionnaires before (T1) and 3 months after learning the test results (T2). The analysis utilized signed rank tests and α = 0.05. Very few women thought they were likely to have a FXP (6.6%). More participants thought FMR1 premutations were "serious" at T2 (62.9%) than at T1 (46.1%, p < 0.0003). When asked at T1 to "describe your feelings when you consider that you are potentially a carrier" of a FXP, 10% had negative feelings, 50% felt ambivalent, and 40% had positive feelings. At T2, feelings about not being a carrier were significantly more favorable (p < 0.0001): negative (0%), ambivalent (6.5%), positive (93%). Corroborating prior reports, few women had a negative view of FXP, perhaps anticipating that carrying the FXP explains their infertility. Perception of the seriousness of FXP increased after learning they did not carry the FXP, which would be predicted by health belief models.


Assuntos
Atitude Frente a Saúde , Proteína do X Frágil da Deficiência Intelectual/genética , Síndrome do Cromossomo X Frágil/genética , Reserva Ovariana/genética , Insuficiência Ovariana Primária/genética , Adulto , Alelos , Feminino , Humanos , Insuficiência Ovariana Primária/psicologia , Inquéritos e Questionários , Adulto Jovem
14.
J Genet Couns ; 23(1): 97-107, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23764957

RESUMO

About 10 % of infertile/subfertile women are diagnosed with diminished ovarian reserve (DOR), of which < 5 % will become pregnant spontaneously. Fragile X (FMR1) genetic testing may provide a reason for her early ovarian aging and/or have reproductive implications. Seven women with DOR (genetic study subset) and the male partners of six of these women were separately interviewed about the experience of being asked to undergo this unanticipated genetic test. Three interviews were conducted (before, within 1 week after, and 3 months after learning the test results). None of the participants carried the FMR1 premutation (largest FMR1 allele 27-50 CGG repeats). For women, their pregnancy-seeking journey was long and exhausting. Women understood the reproductive implications of carrying the FMR1 premutation, and hoped for a negative result. Being offered a genetic test caused women to pause and re-think their future reproductive plans. Husbands viewed the infertility journey as filled with unknowns, of which the genetic test results would be one more puzzle piece. The expense of fertility testing/treatment was mentioned by both spouses, though more notably by husbands. The introduction of a possible genetic cause of infertility, with additional potential health consequences for future biological children, caused women to re-think their quest for pregnancy. In contrast, the genetic test was viewed as an additional source of information for their husbands as opposed to raising concern regarding potential reproductive ramifications.


Assuntos
Síndrome do Cromossomo X Frágil/diagnóstico , Mutação , Adulto , Feminino , Síndrome do Cromossomo X Frágil/genética , Humanos , Entrevistas como Assunto , Estudos Longitudinais
15.
Psychol Health ; 38(8): 949-968, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-34806490

RESUMO

OBJECTIVE: We examined accuracy and bias in people's perceptions of their romantic partner's daily social control attempts of daily health behaviours and how misperceptions of partner daily social control are related to both partners' daily experiences. DESIGN: 106 cohabiting couples from the community reported on their own and their partner's daily social control attempts (i.e., persuasion, pressure) and their daily experiences (i.e., positive and negative affect, autonomy, relationship satisfaction) across 14 consecutive days (N = 2377 reports). Multilevel path models examined tracking accuracy, projection, and mean-level bias in perceptions of partner health social control attempts, and associations between mean-level bias and daily experiences. RESULTS: Perceptions of provider influence contained significant tracking accuracy, projection, and mean-level accuracy in provider use of social control. Underperceptions of persuasion were associated with negative outcomes for the perceiver and no outcomes for the provider. Overperceptions of persuasion were associated with negative outcomes for providers and marginally higher positive affect for perceivers. Misperceptions of pressure were associated with negative outcomes for both perceivers and providers. CONCLUSION: Results suggest that social control may have the most benefit and least harm to both partners when people accurately perceive the mean-levels of such influence attempts on their health behaviours.


Assuntos
Relações Interpessoais , Parceiros Sexuais , Humanos , Satisfação Pessoal , Viés
16.
Psychol Health ; : 1-20, 2023 Dec 28.
Artigo em Inglês | MEDLINE | ID: mdl-38153205

RESUMO

OBJECTIVE: This study examined accuracy and bias in daily perceptions of a romantic partner's autonomy support and undermining of health behaviors and the associations between misperceptions and both partners' daily experiences. DESIGN: A sample of 106 cohabiting couples from the community completed daily reports (N = 2377) of their own and their partner's autonomy support and undermining, and their daily experiences. RESULTS: We found tracking accuracy and projection in perceptions of provider's autonomy support and undermining, and evidence of misperceptions: people over-perceived the provider's undermining and under-perceived the provider's autonomy support. Misperceptions were linked with more negative experiences, indicating support and undermining may have the most benefit and least harm when more accurately perceived. CONCLUSION: Although there is some accuracy in daily perceptions of provider support and undermining of health behaviors, there are also biases at play in perceptions and misperceptions are linked with more negative experiences, indicating that support and undermining have the most benefit and least harm to both perceiving and providing partners when such behaviors are accurately perceived.

17.
STAR Protoc ; 4(3): 102457, 2023 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-37556320

RESUMO

Mammalian cells can die by apoptosis or by one of several non-apoptotic mechanisms, such as ferroptosis. Here, we present a protocol to distinguish ferroptosis from other cell death mechanisms in cultured cells. We describe steps for seeding cells, administering mechanism-specific cell death inducers and inhibitors, and measuring cell death and viability. We then detail the use of molecular markers to verify mechanisms of cell death. This protocol can be used to identify and distinguish ferroptosis in 2D and 3D cultures. For complete details on the use and execution of this protocol, please refer to Ko, et al. (2019),1 Magtanong, et al. (2022),2 and Armenta, et al. (2022).3.


Assuntos
Ferroptose , Animais , Morte Celular , Apoptose , Células Cultivadas , Mamíferos
18.
J Pediatr Urol ; 19(5): 638.e1-638.e8, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37455206

RESUMO

BACKGROUND: Management patterns and outcomes are poorly defined in cases of late PUV diagnosis. OBJECTIVE: To compare post-ablation management and clinical outcomes of patients with infantile (<1 year) versus childhood (>5 year) PUV diagnosis to gain insight into the pathologies at opposite ends of the PUV spectrum. STUDY DESIGN: A multicenter retrospective cohort study was conducted using the TriNetX research network between 2006 and 2022. TriNetX synthesizes insurance claims and electronic medical record data for over 110 million patients from 92 healthcare organizations. We defined two cohorts: 1) The <1 year arm had an index diagnosis of PUV and cystoscopy with valve ablation within 1 year of life, 2) the >5 year arm had an index diagnosis of PUV and valve ablation after age 5. We report rates and time-to-first use of antispasmodics, alpha-blockers, CIC, bladder botox, enterocystoplasty or Mitrofanoff or secondary cutaneous vesicostomy, and CKD. RESULTS: We identified 569 patients (323 <1 year; 246 >5 year). Median age at diagnosis was 1 month (median follow-up 8 years) and 9 years (median follow-up 10 years) for the <1 year and >5 year cohorts, respectively. Following ablation, both arms were primarily managed with antispasmodics, with no difference between groups. The >5 year arm was significantly more likely to receive alpha-blockers or bladder botox. The <1 year arm was significantly more likely to be started on CIC, undergo enterocystoplasty, Mitrofanoff or secondary cutaneous vesicostomy, or renal transplantation. The <1 year arm had significantly higher rates and shorter time-to-progression to all stages of CKD. DISCUSSION: Despite higher utilization of conservative strategies among patients with a late PUV diagnosis, these patients had superior renal outcomes and low rates of progression to invasive treatments. Limitations include potential inaccuracies in medical coding as well as variations in thresholds to initiate CIC, perform surgical reconstruction, or proceed with renal transplantation at participating centers. CONCLUSIONS: These findings provide evidence that a late PUV diagnosis reflects an overall milder disease process.

19.
Emotion ; 23(2): 450-459, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35389731

RESUMO

How parents approach and teach their children about emotions are key determinants of children's healthy adjustment (Denham, 2019). Parental emotion socialization has been mostly studied in parents of young children. Our study identified emotion socialization (ES) strategies used by parents of early adolescents (Study 1) and then examined the relations of ES strategies with early adolescent adjustment, parent-child attachment, and maternal depression (Study 2). Study 1 included 171 parents of 9- to 14-year-old children who completed an open-ended questionnaire about their reactions to their children's negative emotions, which was content coded for ES strategies. We found that parents do use the 6 traditional ES strategies (problem solving, emotion focused/comforting, encouragement, minimizing, punitive, and distress) with early adolescents, while also using 3 approaches not identified in studies of parents of younger children (self-regulation, parent seeking information, parent explaining). We also found that some ES strategies are context and gender specific. Study 2 included 218 mother and child dyads (children aged 9- to 14- years). Mothers completed the Revised Coping with Children's Negative Emotions Scale, adapted to include items assessing the 3 new strategies, and measures of child adjustment, attachment, and maternal depression. The ES strategies loaded on 3 factors: Collaborative Coping, Negative Reactions to Child's Distress, and Low Expectation for Child's Self-Regulation. Negative Reactions to Child's Distress showed associations with children's internalizing, externalizing, and prosocial behavior, and child attachment, while Collaborative Coping was related to prosocial behavior. Our results point to the importance of investigating additional ES strategies in early adolescence. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Depressão , Socialização , Feminino , Adolescente , Humanos , Pré-Escolar , Criança , Pais/psicologia , Emoções/fisiologia , Mães/psicologia , Relações Pais-Filho , Relações Mãe-Filho/psicologia
20.
Soc Dev ; 32(1): 98-116, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36779166

RESUMO

Relationships with pet dogs are thought to provide substantial benefits for children, but the study of these relationships has been hindered by a lack of validated measures. Approaches to assessing the quality of children's pet dog relationships have tended to focus on positive relationship qualities and to rely on self-report questionnaires. The aim of this study was to develop and test multiple measures that could be used to assess both positive and negative features of children's relationships with pet dogs. In a sample of 115 children ages 9-14 years who were pet dog owners, we assessed six qualities of pet dog relationships: Affection, Nurturance of Pet, Emotional Support from Pet, Companionship, Friction with Pet, and Pets as Substitutes for People. All qualities were assessed with child questionnaires, parent questionnaires, and child daily reports of interactions with pets. We found substantial convergence in reports from different observers and across different measurement approaches. Principal components analyses and correlations suggested overlap for many of the positive qualities, which tended to be distinct from negative relationship qualities. The study provides new tools which could be used to test further how relationships with pets contribute to children's development.

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