1
|
Romano O, Stout D, Mendrek A. Age and gender differences in coping and mental health during and post COVID-19 lockdown. Eur Psychiatry 2022. [PMCID: PMC9566806 DOI: 10.1192/j.eurpsy.2022.525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction As a reaction to growing number of COVID-19 cases in Quebec, the government issued a lockdown to prevent further spread of the virus in March 2020. The novelty of the imposed restrictions warranted an assessment of adult coping and potential effects on anxiety and depressive symptoms. Objectives The purpose of the present study was to evaluate methods of coping employed during Quebec’s lockdown and their potential ramifications on anxiety and depressive symptoms post-lockdown in Quebec. Methods In a retrospective longitudinal design, two-hundred and twenty-three (n = 223) adults (65.5% female; 34.5% male) completed the study online. They were asked to fill out several questionnaires and provide demographic information. Results Analysis revealed significant improvement in anxiety symptoms post-lockdown relative to during lockdown across the entire sample. Depressive symptoms also improved significantly across the sample, but the difference was less pronounced among 18–34-year-olds than those 35 and above. Male adults aged 18-34 utilized maladaptive coping strategies to the greatest extent. Moreover, maladaptive coping was significantly associated with anxiety and depressive symptoms and predicted depressive symptoms post-lockdown. Further investigation revealed that young adult males differed from females in their use of substances and self-blame to cope. Conclusions Overall, the data suggest that the lockdown adversely affected anxiety and depressive symptoms among the general population. Furthermore, young adults, particularly males, were most susceptible to depressive symptomatology due in part to their methods of coping with the novel context. A follow-up study is warranted. Future studies should also seek to recruit individuals whose self-identified gender is non-traditional (e.g., non-binary). Disclosure No significant relationships.
Collapse
|
2
|
Ahn HJ, Park J, Song K, Na B, Rosanvallon S, Stout D. Radiochemical Analysis of Tritium for ITER Type B Metallic Radwastes. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. J. Ahn
- Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon, 305-330, Korea
| | - J. Park
- Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon, 305-330, Korea
| | - K. Song
- Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon, 305-330, Korea
| | - B.C Na
- ITER Organization, 13067 Saint-Paul-lez-Durance Cedex, France
| | - S. Rosanvallon
- ITER Organization, 13067 Saint-Paul-lez-Durance Cedex, France
| | - D. Stout
- ITER Organization, 13067 Saint-Paul-lez-Durance Cedex, France
| |
Collapse
|
3
|
Berry-Pusey BN, Chang YC, Prince SW, Chu K, David J, Taschereau R, Silverman RW, Williams D, Ladno W, Stout D, Tsao TC, Chatziioannou A. A semi-automated vascular access system for preclinical models. Phys Med Biol 2013; 58:5351-62. [PMID: 23877111 DOI: 10.1088/0031-9155/58/16/5351] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Murine models are used extensively in biological and translational research. For many of these studies it is necessary to access the vasculature for the injection of biologically active agents. Among the possible methods for accessing the mouse vasculature, tail vein injections are a routine but critical step for many experimental protocols. To perform successful tail vein injections, a high skill set and experience is required, leaving most scientists ill-suited to perform this task. This can lead to a high variability between injections, which can impact experimental results. To allow more scientists to perform tail vein injections and to decrease the variability between injections, a vascular access system (VAS) that semi-automatically inserts a needle into the tail vein of a mouse was developed. The VAS uses near infrared light, image processing techniques, computer controlled motors, and a pressure feedback system to insert the needle and to validate its proper placement within the vein. The VAS was tested by injecting a commonly used radiolabeled probe (FDG) into the tail veins of five mice. These mice were then imaged using micro-positron emission tomography to measure the percentage of the injected probe remaining in the tail. These studies showed that, on average, the VAS leaves 3.4% of the injected probe in the tail. With these preliminary results, the VAS system demonstrates the potential for improving the accuracy of tail vein injections in mice.
Collapse
Affiliation(s)
- B N Berry-Pusey
- Crump Institute for Molecular Imaging at UCLA, 570 Westwood Plaza, Los Angeles, CA 90095, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Abstract
83 participants thought about a white bear before or after trying to suppress the idea. There was no rebound effect (more expression of white-bear thoughts after than before suppression) for either introverts or extraverts.
Collapse
Affiliation(s)
- N Bourdon
- Department of Psychology, Bishop's University, Lennoxville, Québec, Canada
| | | | | |
Collapse
|
5
|
Stout D. Helmets under the updated ARFF standard. Occup Health Saf 2001; 70:34-6, 38. [PMID: 11225014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
6
|
Tahir SK, Gu WZ, Zhang HC, Leal J, Lee JY, Kovar P, Saeed B, Cherian SP, Devine E, Cohen J, Warner R, Wang YC, Stout D, Arendsen DL, Rosenberg S, Ng SC. Inhibition of farnesyltransferase with A-176120, a novel and potent farnesyl pyrophosphate analogue. Eur J Cancer 2000; 36:1161-70. [PMID: 10854950 DOI: 10.1016/s0959-8049(00)00067-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Farnesylation of Ras is required for its transforming activity in human cancer and the reaction is catalysed by the enzyme farnesyltransferase. Recently, we discovered a novel chemical series of potent farnesyl pyrophosphate (FPP) analogues which selectively inhibited farnesyltransferase. Our most potent compound to date in this series, A-176120, selectively inhibited farnesyltransferase activity (IC(50) 1.2+/-0.3 nM) over the closely related enzymes geranylgeranyltransferase I (GGTaseI) (IC(50) 423+/-1.8 nM), geranylgeranyltransferase II (GGTaseII) (IC(50) 3000 nM) and squalene synthase (SSase) (IC(50)>10000 nM). A-176120 inhibited ras processing in H-ras-transformed NIH3T3 cells and HCT116 K-ras-mutated cells (ED(50) 1.6 and 0.5 microM, respectively). The anti-angiogenic potential of A-176120 was demonstrated by a decrease in Ras processing, cell proliferation and capillary structure formation of human umbilical vein endothelial cells (HUVEC), and a decrease in the secretion of vascular endothelial growth factor (VEGF) from HCT116 cells. In vivo, A-176120 reduced H-ras NIH3T3 tumour growth and extended the lifespan of nude mice inoculated with H- or K-ras-transformed NIH3T3 cells. A-176120 also had an additive effect in combination with cyclophosphamide in nude mice inoculated with K-ras NIH3T3 transformed cells. Overall, our results demonstrate that A-176120 is a potent FPP mimetic with both antitumour and anti-angiogenic properties.
Collapse
Affiliation(s)
- S K Tahir
- Cancer Research, Pharmaceutical Product Research Division, Abbott Laboratories, 100 Abbott Park Road, IL 60064, Abbott Park, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Stout D, Petric A, Satyamurthy N, Nguyen Q, Huang SC, Namavari M, Barrio JR. 2Beta-carbomethoxy-3beta-(4- and 2-[18F]fluoromethylphenyl)tropanes: specific probes for in vivo quantification of central dopamine transporter sites. Nucl Med Biol 1999; 26:897-903. [PMID: 10708303 DOI: 10.1016/s0969-8051(99)00073-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Dopamine reuptake transporter binding kinetics of 2beta-carbomethoxy-3beta-(4-[18F]fluoromethylphenyl)tropane (p-FWIN) and 2beta-carbomethoxy-3beta-(2-[18F]fluoromethylphenyl)tropane (o-FWIN) were determined in vervet monkeys using positron emission tomography (PET). Ligand localization was rapid and specific to the striatum with kinetic estimates comparable with those of 11C-labeled WIN 35,428 (CWIN). Binding was more specific with p-FWIN than with CWIN or o-FWIN. The relatively longer half-life of the 18F radiolabel enabled longer acquisition times with p-FWIN, resulting in less variability in the kinetic estimates.
Collapse
Affiliation(s)
- D Stout
- Department of Molecular and Medical Pharmacology, UCLA School of Medicine, Los Angeles, California 90095-6948, USA
| | | | | | | | | | | | | |
Collapse
|
8
|
Abstract
Participants (N = 509) were tested for backward cued recall of concrete noun pairs illustrated with pictures. Recall was considerably higher when a picture showed an interactive relationship than when the two items were drawn separately. However, with separate pictures in which the stimulus drawing appeared in a color that bore a direct relationship to the response object or when both drawings shared a color that was not related to the response object, recall was higher than with uncolored drawings. Performance was even better when the shared color was associated with the response object, although it remained below that with uncolored interactive pictures. The positive effects of shared colors did not occur with interactive pictures, but recall improved further when the response color appeared either in the stimulus or response portions of the combined drawing. It is concluded that cued recall is mediated by common elements and that the effects are additive, at least with separate pictures.
Collapse
Affiliation(s)
- S J McKelvie
- Department of Psychology, Bishop's University, Lennoxville, Quebec, Canada
| | | | | |
Collapse
|
9
|
Abstract
Undergraduate university students (N = 103) participated in a study of the relationship between test anxiety and the variables of trait anxiety, self-esteem, locus of control, mental ability, and gender. Results indicated bivariate associations between total test anxiety and the other measures except for mental ability. Further analyses revealed independent relationships between the "worry" component of test anxiety and the variables of trait anxiety, internality, chance, and mental ability. We also found independent associations between the "emotionality" aspect of test anxiety and the measures of trait anxiety and chance.
Collapse
Affiliation(s)
- A F de Man
- Department of Psychology, Bishop's University, Lennoxville, Quebec, Canada
| | | | | |
Collapse
|
10
|
Stout D, Stuart S. E. G. Boring's review of Brigham's A study of American intelligence: a case-study in the politics of reviews. Soc Stud Sci 1991; 21:133-142. [PMID: 11622605 DOI: 10.1177/030631291021001007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In 1923, Carl Brigham published A Study of American Intelligence. E. G. Boring was asked by R. M. Yerkes to review the book; Boring agreed, saying that he would write a favourable review. Instead, he published a highly critical review in the New Republic. Contrary to the impression that psychologists and educators in the main supported Brigham's book, Boring's assessment of American Intelligence was in step with other reviews at that time. What remains open to question is why Boring agreed in the first place to write a positive review. Although this question remains unresolved, we lay out the specific details that led Boring to alter his review. Indeed, it is the `small' politics among professionals, and not the social politics of race, that persuaded Boring to pan Brigham's book.
Collapse
|
11
|
Artru AA, Stout D, Katz RA, Freund PR. EEG Suppression and Increased Blood-Brain Barrier Permeability Following Intracarotid Injection of Iothalamate Meglumine (Conray) in Dogs. J Neurosurg Anesthesiol 1990; 2:105-13. [PMID: 15815329 DOI: 10.1097/00008506-199006000-00008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Over a 2-year period we observed three cases of unilateral suppression of the electroencephalogram (EEG) lasting from 45 s to 4 min following intracarotid injection of 60% iothalamate meglumine (Conray) for intraoperative carotid angiography postendarterectomy. As a result of these cases we undertook studies in 11 dogs anesthetized with isoflurane to examine causes of EEG suppression following intracarotid contrast medium injection. In group 1 (n = 6) cerebral blood flow (CBF), the cerebral metabolic rate for oxygen (CMRO2), EEG activity, and permeability of the blood-brain barrier (BBB) were determined. In group 2 (n = 5) cerebrospinal fluid (CSF) pressure, EEG activity, and BBB permeability were determined. Intracarotid injection of 5 ml of 60% Conray was associated with unilateral EEG suppression and increased BBB permeability in 1 of 11 dogs. Injection of contrast material caused no change in CBF or CMRO2 and caused a statistically significant but physiologically unimportant increase of CSF pressure (from 12 +/- 1 to 16 +/- 1 cm H2O, mean +/- SEM). It is concluded that EEG suppression following intracarotid injection of Conray is a rare event. It seems unlikely that EEG suppression resulted from cerebral ischemia or hypoxia, but rather was associated with increased BBB permeability. Increased BBB permeability likely was caused by the osmotic effect of Conray and not by hypoxic-ischemic microvascular injury or loss of autoregulation of CBF.
Collapse
Affiliation(s)
- A A Artru
- Department of Anesthesiology, University of Washington School of Medicine, Seattle, Washington, USA
| | | | | | | |
Collapse
|
12
|
Greenberg A, Bozzelli JW, Cannova F, Forstner E, Giorgio P, Stout D, Yokoyama R. Correlations between lead and coronene concentrations at urban, suburban, and industrial sites in New Jersey. Environ Sci Technol 1981; 15:566-570. [PMID: 22283949 DOI: 10.1021/es00087a007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
|
13
|
Abstract
Infiltrating ductal carcinoma of the breast occurred in a total of six men from two families. In one family specimens from three men who had prophylactic mastectomies revealed focal intraductal hyperplasia, suggesting a familial tendency toward proliferation of mammary-duct epithelium. In the other family, benign and malignant breast lesions also developed in several women. Preliminary data suggest elevated urinary oestrogen excretion in three men from these families, implicating a defect in oestrogen production or metabolism in the pathogenesis of male breast neoplasms.
Collapse
|
14
|
Stout D. Problems of rubella control. N Engl J Med 1970; 283:819. [PMID: 5456247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|