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1.
Int J Mol Sci ; 24(6)2023 Mar 07.
Article in English | MEDLINE | ID: mdl-36982195

ABSTRACT

Molecularly imprinted polymers (MIPs) for benzylpiperazine (BZP, 1), an illicit designer drug, were developed by using both self-assembly and semi-covalent approaches. From an array of potential functional monomers (FMs) and using a combination of pre-synthetic interaction studies (by molecular modelling and NMR analysis) and binding assays, the highest performing self-assembly 1-MIPs were confirmed to result from methacrylic acid (7) as FM, ethylene glycol dimethacrylate (EGDMA) or trimethylolpropane trimethacrylate (TRIM) as crosslinkers and chloroform as the porogen and rebinding solvent at template (T): FM ratios of 1:1 and 1:2, giving imprinting factors (IF) 3 to 7. The semi-covalent 1-MIPs were designed using benzylpiperazine (4-vinylphenyl) carbamate (16) as the template-monomer adduct in combination with either EDGMA or TRIM. Our comparative analysis showed the semi-covalent polymers to have a stronger affinity for 1 (significantly lower Kd values and higher IFs) and faster uptake than the self-assembly systems. Both approaches have comparable cross-reactivity: marginal to low against cocaine (17) and morphine (18) and high against ephedrine (19) and phenylpiperazine (20). They also have comparable selectivity: highly selective towards 1 against 17, moderate against 18 and non-selective against 19. EGDMA-based self-assembly MIPs displayed a greater imprinting effect (higher IFs and NIP-to-MIP Kd ratios) than TRIM-based MIPs, while the TRIM-based semi-covalent MIP outperformed its EGDMA-based equivalent. By virtue of its modest selectivity against the test illicit drugs, 1-MIPs could potentially be used as a dummy MIP for the broad-based capture and enrichment of illicit drug blends for subsequent laboratory analysis.


Subject(s)
Molecular Imprinting , Polymers/chemistry , Molecularly Imprinted Polymers , Solvents
2.
J Vasc Surg ; 73(6): 2098-2104, 2021 06.
Article in English | MEDLINE | ID: mdl-33249206

ABSTRACT

OBJECTIVE: Techniques such as the use of nonpenetrating vascular clips for arteriovenous fistula (AVF) anastomotic creation have been developed in an effort to reduce fistula-related complications. However, the outcomes data for the use of clips have remained equivocal, and the cost evaluations to support their use have been largely theoretical. Therefore, the present study aimed to determine both the clinical and the cost outcomes of AVFs created with nonpenetrating vascular clips compared with the continuous suture technique during a 10-year period at a single institution. METHODS: All patients undergoing AVF creation in the upper extremity from 2009 through 2018 were retrospectively analyzed. The patient demographics and AVF outcomes were collected and compared stratified by the surgical technique used. A cost analysis was performed of a subgroup of patients from 2013 to 2018. RESULTS: During the 10-year study period, 916 AVFs were created (79% using the continuous suture technique and 21% using nonpenetrating vascular clips). Patient demographics and comorbid conditions did not differ between the two groups, and no differences were present in maturation, primary patency, assisted primary patency, or complication rates between the two groups at 1 year. The suture group had a shorter time to maturation (4.3 months vs 5.5 months; P < .01) and improved secondary patency compared with the clip group (77.13% vs 69.59%; P = .03) The cost analysis of the procedures revealed a significant difference in direct costs (suture, $1389.26 vs clip, $1716.51; P < .01) and contribution margin (suture, $1770.19 vs clip, $1128.36; P < .01) for the two groups. CONCLUSIONS: Both suture and clip techniques in AVF creation demonstrated equivalent rates of maturation, primary patency, assisted primary patency, and complications at 1 year with higher expense associated with the use of clips. Thus, in an effort to reduce the economic burden of healthcare in the United States, the findings from the present study support the preferential use of the standard polypropylene suture technique when creating upper extremity AVFs.


Subject(s)
Arteriovenous Shunt, Surgical/economics , Arteriovenous Shunt, Surgical/instrumentation , Health Care Costs , Surgical Instruments/economics , Suture Techniques/economics , Adult , Aged , Arteriovenous Shunt, Surgical/adverse effects , Cost Savings , Cost-Benefit Analysis , Female , Humans , Male , Middle Aged , Postoperative Complications/economics , Postoperative Complications/therapy , Renal Dialysis/economics , Retrospective Studies , Suture Techniques/adverse effects , Time Factors , Treatment Outcome , Vascular Patency
3.
Qual Life Res ; 30(2): 407-423, 2021 Feb.
Article in English | MEDLINE | ID: mdl-32990882

ABSTRACT

PURPOSE: Collecting patient-reported outcomes is important in informing the well-being of women with breast cancer. Consumer perceptions are important for successful implementation of monitoring systems, but are rarely formally assessed. We compared reactions to two different surveys (assessing psychosocial outcomes and/or Health-related Quality of Life (HrQoL) outcomes) among Australian women with breast cancer. METHODS: Women (18 + years) within 5 years diagnosis of breast cancer were randomly allocated to complete one of two online surveys: (i) minimum HrQoL measures or (ii) minimum HrQoL measures plus psychosocial outcomes (body image, depression, anxiety stress, fear of cancer recurrence, decisional difficulties and unmet need). Participants completed questions regarding their perceptions of the survey, including qualitative feedback. RESULTS: Data were available for 171 participants (n(i) = 89; n(ii) = 82), with 92% (n = 158) providing 95-100% complete data. Perceptions were comparable between survey groups, and high (80-100%) regarding time burden, ease of completion, comprehensible, appropriateness and willingness to participate again and moderately high (67-74%) regarding willingness to answer more questions and relevance. Qualitative feedback indicated gaps across both surveys, including financial/work-related issues, satisfaction with information and care, need for nuanced questions, and impact of side effects/treatment, and from the minimum set only, emotional well-being and support. Impairment in some HrQoL and psychosocial outcomes were observed among participants. CONCLUSIONS: Assessment of HrQoL and psychosocial outcomes was well received by consumers. Results alleviate concern regarding possible patient burden imposed by longer more in-depth surveys. The importance placed on assessment brevity should not outweigh the need to assess outcomes that consumers consider important.


Subject(s)
Breast Neoplasms/psychology , Quality of Life/psychology , Adult , Aged , Female , Humans , Internet , Middle Aged , Psychology , Surveys and Questionnaires
4.
Eur J Cancer Care (Engl) ; 30(4): e13393, 2021 Jul.
Article in English | MEDLINE | ID: mdl-33368738

ABSTRACT

OBJECTIVE: To trial collecting patient-reported outcome measures (PROMs) to assess psychosocial outcomes in men with prostate cancer (PC). METHODS: A cross-sectional postal survey was sent to three groups of 160 men with PC (6, 12 and 24 months post-initial treatment; ntotal  = 480), through the South Australian Prostate Cancer Clinical Outcomes Collaborative (SAPCCOC) registry (2017). Outcomes were as follows: response rate, completeness, general and disease-specific quality of life, distress, insomnia, fear of recurrence, decisional difficulties and unmet need. RESULTS: A response rate of 57-61% (n = 284) was achieved across groups. Data completeness was over 90% for 88% of survey items, with lower response (76-78%) for EPIC-26 urinary and sexual functioning subscales, sexual aid use (78%) and physical activity (68%). In general, higher socio-economic indicators were associated with higher completion of these measures (absolute difference 12-26%, p < 0.05). Lower unmet need on the sexuality domain (SCNS-SF34) was associated with lower completion of the EPIC-26 sexual functioning subscale [M (SD) = 12.4 (21.6); M (SD) = 26.3 (27.3), p < .001]. Worse leaking urine was associated with lower completion of urinary pad/diaper use question (EPIC-26) [M (SD) = 65.9 (26.5), M (SD) = 77.3 (23.9), p < .01]. CONCLUSION: Assessment of psychosocial PROMs through a PC registry is feasible and offers insight beyond global quality of life assessment, to facilitate targeting and improvements in services and treatments.


Subject(s)
Prostatic Neoplasms , Quality of Life , Australia , Cross-Sectional Studies , Feasibility Studies , Humans , Male , Patient Reported Outcome Measures , Prostatic Neoplasms/therapy , Surveys and Questionnaires
5.
Lancet ; 385 Suppl 1: S56, 2015 Feb 26.
Article in English | MEDLINE | ID: mdl-26312878

ABSTRACT

BACKGROUND: Oncolytic viral therapy and photodynamic therapy are potential therapies for inoperable or advanced pancreatic cancer. Our aim was to investigate the anti-cancer killing effects of reovirus therapy combined with protoporphyrin IX (PpIX)-mediated photodynamic therapy on a variety of human pancreatic cancer cell lines. METHODS: Pancreatic cancer cell lines (PsPC-1 and BXPC-3) and a non-cancer control cell line (HEK293) were infected with reovirus serotype 3 strain Dearing (T3D) at 0, 0·1, 1, and 10 plaque-forming units (PFU) per cell for 48 h. Cells were incubated with PpIX pro-drug 5-aminolevulinic acid (5-ALA) at 0, 1, 2, 3, and 4 mM for 4 h. Then, cells were photo-irradiated for 15 min with visible red light-emitting diodes with a light-fluence of 0·54 J/cm(2) of 653 nm (PpIX optimal excitation wavelength). The killing effects of reovirus combined with PpIX-mediated photodynamic therapy were analysed in methylthiazoltetrazolium (MTT) and trypan blue assays. The effect of adding reovirus after photodynamic therapy was also assessed. The statistical significance of the difference between groups was assessed with the two-tailed Student's t test. p<0·05 was considered statistically significant. FINDINGS: Reovirus monotherapy induced cell death in the two pancreatic lines (mean 57% [SE 10·2] at 10 PFU per cell). PpIX-mediated PDT monotherapy induced cell death in a dose-dependent manner (mean 10% [SE 2·2], 30 [6·4], 50 [8·2], and 70 [13·2] after 1, 2, 3, and 4 mM 5-ALA, respectively). Reovirus with PpIX-mediated photodynamic therapy resulted in a significantly increased cytotoxic effect compared with reovirus monotherapy and photodynamic therapy (p=0·042) with 100% cell death observed across pancreatic cell lines with 10 PFU per cell combined with 1 and 2 mM 5-ALA. There was no difference in cytotoxicity observed between added reovirus before or after photodynamic therapy. INTERPRETATION: To our knowledge, this is the first in-vitro study to combine reovirus oncolytic viral therapy with PpIX-mediated photodynamic therapy to treat pancreatic cancer. These results show a significant additive effect in cell killing and they provide initial evidence for a novel combined therapeutic intervention. FUNDING: National Institute for Health Research.

6.
J Surg Res ; 195(1): 175-87, 2015 May 01.
Article in English | MEDLINE | ID: mdl-25682189

ABSTRACT

BACKGROUND: Peritoneal carcinomatosis is the dissemination of cancer in the peritoneal cavity secondary to abdominal or extra-abdominal malignancies. Accurate assessment of the disease's burden is a challenge because of the complexity of the peritoneal cavity and the small size of the metastatic nodules. Photodynamic diagnosis (PDD) is an emerging technology in tumor diagnosis. A photosensitizer is administered, which is preferentially taken up by cancer cells. The photosensitizer emits fluorescence when exposed to a light of a specific wavelength. This helps distinguish cancer from normal tissues. METHODS: We systematically reviewed the evidence for using PDD in detecting peritoneal carcinomatosis in both animal and human literature. Both Medline and EMBASE databases were searched (November 2014). The titles and the abstracts of all retrieved citations were inspected, and the full articles of the relevant articles were obtained. RESULTS: A total of 12 human and 18 animal studies were included. Clinical studies have shown PDD to be a safe modality with no significant adverse effects. It increases the detection of malignant peritoneal nodules by 21%-34% in comparison with white light alone. The sensitivity and specificity of PDD were reported at 83%-100% and 95%-100%, respectively. These findings were supported by multiple animal studies, which have shown an increase in the sensitivity of tumor detection when using PDD (72%-91%) in comparison with white light alone (39%). CONCLUSIONS: PDD is a promising modality, which improves the detection of peritoneal carcinomatosis lesions. Further research, however, should investigate the impact of PDD on the patients' therapeutic management and final outcomes.


Subject(s)
Carcinoma/diagnosis , Peritoneal Diseases/diagnosis , Photosensitizing Agents , Animals , Humans
7.
J Trauma Stress ; 27(5): 535-41, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25322883

ABSTRACT

This longitudinal study examined whether impediments to mental health treatment would predict changes in mental health symptoms (posttraumatic stress disorder [PTSD] and depression) in the months following soldiers returning from combat. Three-hundred ten combat veterans completed measures of impediments to treatment and measures of PTSD and depression symptoms at 2, 3, and 4 months following a 15-month combat deployment. Structural equation modeling revealed that greater impediments (a latent variable indexed by stigma, practical barriers, and negative treatment attitudes) at 2 months predicted increased PTSD and depression symptoms from 2-3 months (ß = .14) and greater impediments at 3 months predicted increased symptoms from 3-4 months (ß = .26). In contrast, evidence was not obtained for the opposite causal direction of symptoms predicting higher levels of impediments at the different periods. Possible mechanisms for the predictive effects of impediments are discussed.


Subject(s)
Depression/psychology , Depression/therapy , Military Personnel/psychology , Stress Disorders, Post-Traumatic/psychology , Stress Disorders, Post-Traumatic/therapy , Afghan Campaign 2001- , Female , Health Services Accessibility , Humans , Longitudinal Studies , Male , Patient Acceptance of Health Care , Psychiatric Status Rating Scales , Social Stigma , Surveys and Questionnaires , United States
8.
J Oral Maxillofac Surg ; 72(10): 2060-5, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25053571

ABSTRACT

PURPOSE: The aim of this study was to estimate the frequency of and identify the risks factors associated with the development of pressure injuries (PIs) in a sample of patients who underwent operative treatment of a head and neck malignancy. MATERIALS AND METHODS: The sample was composed of patients admitted under the care of the Combined Head and Neck Service, John Hunter Hospital from 2010 to 2012 and whose operation was a minimum of 5 hours duration. The predictor variables included a range of demographic, comorbidity, and operative factors. The outcome variable was the development of a PI. A multivariate logistic regression model was conducted to assess the association between predictor variables and the outcome variable (PI). RESULTS: Eighty-eight patients (62 male and 26 female) were included in the study. PIs were identified in 13 patients (14%). These injuries were typically located over bony prominences, in keeping with findings identified in the relevant literature. Specifically, an increased risk of PI was seen with decreasing patient age (54.5 ± 11.6 yr for PI vs 63.1 + 10.8 yr for no PI; P = .01) and increasing operative duration (729 ± 79 minutes for PI vs 625 ± 158 minutes for no PI; P = .02). CONCLUSIONS: PIs can occur in patients who undergo prolonged head and neck resective and reconstructive surgery. In particular, decreasing age and increasing operative duration were shown to be statistically significant factors in the development of PIs in this group of patients.


Subject(s)
Head and Neck Neoplasms/surgery , Operative Time , Pressure Ulcer/etiology , Skin/injuries , Adult , Age Factors , Aged , Aged, 80 and over , Bedding and Linens , Cohort Studies , Female , Free Tissue Flaps/transplantation , Hospitalization , Humans , Intraoperative Complications , Length of Stay , Male , Middle Aged , Neck Dissection/methods , Necrosis , Plastic Surgery Procedures/methods , Risk Factors
9.
Early Interv Psychiatry ; 18(7): 547-552, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38318942

ABSTRACT

AIM: Mindfulness-based interventions have been tested as preventive programs for childhood internalizing difficulties, but most research has been at a 'universal' level with small to null effects. Mindfulness-Based Cognitive Therapy for Children (MBCT-C) has similar effects to Cognitive Behaviour Therapy (CBT) when used as a small-group, targeted preventive program. Knowledge gaps include the longer-term effectiveness of MBCT-C relative to CBT and the benefits of adding a parent module. This trial aims to compare MCBT-C to traditional CBT, including a parent module, to 15-months post-intervention and to test the feasibility and acceptability of adding a parent module. METHODS: Participants will be recruited from primary schools in areas of socio-economic disadvantage in South Australia (n = 194). Children (aged 9-12) years with signs of internalizing difficulties (e.g., shy, withdrawn, worried), and their parents, will be eligible for this two-armed randomized controlled non-inferiority trial (RCT). Children will participate in 10 group sessions of MBCT-C or CBT, facilitated by psychologists, and parents from both conditions will participate in two parent-only group sessions. Child self-report measures include depression and anxiety, as well as attention, mindfulness and self-compassion. Parent measures include symptoms of depression and anxiety, mindfulness, and parent-child relationship strength. The primary outcome will be child anxiety and depression (Revised Child Anxiety and Depression Scale-25). Measures will be collected pre and post intervention, and at 3, 6, 12 and 15-month follow up. RESULTS: Schools will be recruited from October 2022. Nomination of children will commence from February 2023. Program implementation will begin May 2023. CONCLUSIONS: This trial will have implications for the feasibility of involving parents in preventative programs, as well as whether mindfulness-based interventions prevent internalizing difficulties over time.


Subject(s)
Cognitive Behavioral Therapy , Mindfulness , Humans , Mindfulness/methods , Child , Cognitive Behavioral Therapy/methods , Equivalence Trials as Topic , Parents/psychology
10.
J Trauma Stress ; 25(3): 307-14, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22729980

ABSTRACT

Benefit finding, described as one's ability to find benefits from stressful situations, has been hypothesized as a buffer against the negative effects of stress on mental health outcomes. Nonetheless, many have questioned the buffering potential of benefit finding in the face of prolonged and excessive stress such as is found in the combat environment. This study suggests that the length of a combat deployment and benefit finding may impact the relationship between combat exposure and posttraumatic stress disorder (PTSD) symptoms. Surveys were distributed to U.S. enlisted soldiers (n = 1,917), officers, and warrant officers (n = 163) of various combat and combat support units deployed to Iraq. A significant 3-way interaction (sr(2) = .004, p < .05) revealed that benefit finding buffered soldiers from increased PTSD symptoms under high levels of combat exposure early in the deployment, but not in later months. These results indicate that although benefit finding may be a useful coping approach during the early phases of deployment, prolonged exposure to stress may diminish a soldier's ability to use benefit finding as a method for coping.


Subject(s)
Adaptation, Psychological , Iraq War, 2003-2011 , Military Personnel/psychology , Adolescent , Adult , Combat Disorders , Female , Health Surveys , Humans , Male , Regression Analysis , Stress Disorders, Post-Traumatic/psychology , United States , Young Adult
11.
J Clin Psychol ; 68(7): 782-800, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22573513

ABSTRACT

OBJECTIVES: The study examined whether elevated rates of externalizing behaviors following deployment could be explained by internalizing symptoms (depression, anxiety, and PTSD symptoms), and health of the social environment (unit leadership, organizational support, and stigma/barriers to care). DESIGN: A model of combat exposure, social environment, internalizing symptoms, and externalizing behaviors was tested in a military unit following a fifteen-month deployment to Iraq. The sample included 1,397 soldiers assessed four month post-deployment; 589 of these soldiers were assessed again nine months post-deployment. RESULTS: Externalizing behaviors were highly stable over the five-month post-deployment period. Both social environment and internalizing symptoms were significantly associated with level of externalizing behaviors at four months and nine months post-deployment, but combat exposure alone significantly predicted change in externalizing behaviors over the follow-up period. CONCLUSIONS: Results suggest the need to broaden the scope of interventions targeted to combat veterans and have implications for care providers and military leaders.


Subject(s)
Aggression/psychology , Alcoholism/epidemiology , Military Personnel/psychology , Social Environment , Adolescent , Adult , Anxiety/epidemiology , Depression/epidemiology , Female , Humans , Iraq War, 2003-2011 , Male , Military Personnel/statistics & numerical data , Psychiatric Status Rating Scales , Psychological Tests , Stress Disorders, Post-Traumatic/epidemiology , United States/epidemiology , Young Adult
12.
Mil Med ; 177(5): 525-30, 2012 May.
Article in English | MEDLINE | ID: mdl-22645878

ABSTRACT

Virtual behavioral health (VBH) services are used frequently to address the high demand for behavioral health (BH) services in the military. Few studies have investigated the relationship between the use of VBH services and BH outcomes or preferences for the use of VBH technologies. In this article, we evaluated BH interviews conducted via video teleconferencing (VTC) or face-to-face in terms of BH symptoms, satisfaction rates, stigma, barriers to care, and preferences for future use of BH care. Soldiers (n = 307) from the headquarters element of an operational unit were surveyed 4 months following a 12-month deployment to Iraq. There were no significant differences in satisfaction rates based on interview modality, but significantly more soldiers preferred face-to-face interviews over VTC interviews in the future. Soldiers who preferred face-to-face interviews also reported higher levels of anxiety and depression symptoms than those who preferred VTC interviews. No significant age differences were found in terms of interview modality satisfaction or preference. Soldiers with greater deployment experience were more likely to report that they would not like using VTC if seeking BH care in the future than soldiers with less deployment experience. These findings highlight the importance of promoting choice in type of BH interview modality.


Subject(s)
Diagnosis, Computer-Assisted , Interview, Psychological , Mass Screening/methods , Mental Disorders/diagnosis , User-Computer Interface , Veterans/psychology , Adolescent , Adult , Data Collection , Female , Humans , Male , Mass Screening/statistics & numerical data , Young Adult
13.
Sci Rep ; 12(1): 10132, 2022 06 16.
Article in English | MEDLINE | ID: mdl-35710779

ABSTRACT

Receptor tyrosine kinase inhibitors improve cancer survival but their cardiotoxicity requires investigation. We investigated these inhibitors' effects on human cardiac progenitor cells in vitro and rat heart in vivo. We applied imatinib, sunitinib or sorafenib to human cardiac progenitor cells, assessing cell viability, proliferation, stemness, differentiation, growth factor production and second messengers. Alongside, sunitinib effects were assessed in vivo. Inhibitors decreased (p < 0.05) cell viability, at levels equivalent to 'peak' (24 h; imatinib: 91.5 ± 0.9%; sunitinib: 83.9 ± 1.8%; sorafenib: 75.0 ± 1.6%) and 'trough' (7 days; imatinib: 62.3 ± 6.2%; sunitinib: 86.2 ± 3.5%) clinical plasma levels, compared to control (100% viability). Reduced (p < 0.05) cell cycle activity was seen with imatinib (29.3 ± 4.3% cells in S/G2/M-phases; 50.3 ± 5.1% in control). Expression of PECAM-1, Nkx2.5, Wnt2, linked with cell differentiation, were decreased (p < 0.05) 2, 2 and 6-fold, respectively. Expression of HGF, p38 and Akt1 in cells was reduced (p < 0.05) by sunitinib. Second messenger (p38 and Akt1) blockade affected progenitor cell phenotype, reducing c-kit and growth factor (HGF, EGF) expression. Sunitinib for 9 days (40 mg/kg, i.p.) in adult rats reduced (p < 0.05) cardiac ejection fraction (68 ± 2% vs. baseline (83 ± 1%) and control (84 ± 4%)) and reduced progenitor cell numbers. Receptor tyrosine kinase inhibitors reduce cardiac progenitor cell survival, proliferation, differentiation and reparative growth factor expression.


Subject(s)
Protein Kinase Inhibitors , Pyrroles , Animals , Humans , Imatinib Mesylate/pharmacology , Indoles/pharmacology , Protein Kinase Inhibitors/pharmacology , Pyrroles/pharmacology , Rats , Sorafenib/pharmacology , Stem Cells , Sunitinib/pharmacology
14.
Nutrients ; 14(19)2022 Oct 07.
Article in English | MEDLINE | ID: mdl-36235825

ABSTRACT

Front-of-pack (FoP) warning labels are a viable policy option with the potential to inform consumer choice and assist in reducing sugar-sweetened beverage (SSB) consumption as part of a multi-faceted approach. This study explored parents' perceptions and understanding of a range of SSB warning labels. Focus groups (n = 12) with 82 parents of school-aged children were conducted, stratified according to education level, sex and location. Health effects, exercise equivalents, sugar content (teaspoons in text and pictograms, "high in") and energy content labels were shown. Through thematic analysis we identified three themes. Theme 1 related to perceptions of effectiveness of labels, underpinned by four subthemes: perceptions of labels as credible, informative and useful, personally relevant and having the potential to change be haviour. Theme 2 related to participants finding opportunities for self-exemption (e.g., physically active) and message rejection (e.g., misinterpretation). Theme 3 encompassed the potential negative consequences of some labels (e.g., body image concerns). The text teaspoons label was perceived most favourably across all themes, with minimal negative issues raised. These results provide in-depth insight into potential responses to labelling as a policy intervention, providing important guidance for the development of labels to ensure optimal message content and framing for future testing and subsequent implementation.


Subject(s)
Food Labeling , Sugar-Sweetened Beverages , Adult , Beverages , Child , Consumer Behavior , Food Labeling/methods , Humans , Parents , Product Labeling , Sugar-Sweetened Beverages/adverse effects , Sugars
15.
J Clin Psychol ; 67(12): 1240-58, 2011 Dec.
Article in English | MEDLINE | ID: mdl-22065464

ABSTRACT

OBJECTIVES: The study conducted a longitudinal assessment of insomnia as an antecedent versus consequence of posttraumatic stress disorder (PTSD) and depression symptoms among combat veterans. DESIGN: Two postdeployment time points were used in combination with structural equation modeling to examine the relative strength of two possible directions of prediction: insomnia as a predictor of psychological symptoms, and psychological symptoms as a predictor of insomnia. Participants were active duty soldiers (N = 659) in a brigade combat team who were assessed 4 months after their return from a 12-month deployment to Iraq, and then again eight months later. RESULTS: Although both insomnia and psychological symptoms were associated at both time periods and across time periods, insomnia at 4 months postdeployment was a significant predictor of change in depression and PTSD symptoms at 12 months postdeployment, whereas depression and PTSD symptoms at 4 months postdeployment were not significant predictors of change in insomnia at 12 months postdeployment. CONCLUSIONS: Results support the role of insomnia in the development of additional psychological problems and highlight the clinical implications for combat veterans, to include the importance of longitudinal assessment and monitoring of sleep disturbances, and the need for early intervention.


Subject(s)
Depression/epidemiology , Sleep Initiation and Maintenance Disorders/epidemiology , Stress Disorders, Post-Traumatic/epidemiology , Veterans/psychology , Adult , Causality , Combat Disorders/diagnosis , Combat Disorders/epidemiology , Combat Disorders/rehabilitation , Comorbidity , Depression/diagnosis , Depression/rehabilitation , Factor Analysis, Statistical , Female , Humans , Iraq War, 2003-2011 , Longitudinal Studies , Male , Military Personnel/psychology , Models, Psychological , Prognosis , Sleep Initiation and Maintenance Disorders/diagnosis , Sleep Initiation and Maintenance Disorders/rehabilitation , Stress Disorders, Post-Traumatic/diagnosis , Stress Disorders, Post-Traumatic/rehabilitation , United States/epidemiology
16.
Psychol Serv ; 16(4): 651-656, 2019 Nov.
Article in English | MEDLINE | ID: mdl-30070551

ABSTRACT

Studies indicate that changes in postdeployment behavioral health care delivery are necessary to improve symptom-reporting and treatment-seeking. The present study compared two behavioral health strategies implemented during the Post-Deployment Health Assessment (PDHA) with soldiers within the first months of returning from a combat deployment. A quasi-experimental, longitudinal study compared soldiers (N = 1,612) interviewed by a behavioral health (BH) provider and soldiers (N = 1,326) interviewed by a primary care provider using the standard PDHA procedure. Surveys pre- and post-PDHA and four months later assessed treatment-seeking attitudes; PDHA data and BH clinic use were compiled and compared by each interview strategy. Soldiers interviewed by a BH provider rated interview usefulness, quality, and comfort reporting BH concerns more positively than soldiers interviewed by a primary care provider using the standard procedure. However, there were no differences in treatment-seeking attitudes, provider referral rates, or use of BH services in the 4 months after the PDHA. Although there were initial positive reports of the interview with the BH Provider, there was no evidence BH provider interviews resulted in any lasting improvements in treatment-seeking or long-term treatment attitudes. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Subject(s)
Mental Disorders/diagnosis , Mental Health Services/statistics & numerical data , Military Personnel/statistics & numerical data , Patient Acceptance of Health Care/statistics & numerical data , Patient Satisfaction/statistics & numerical data , Primary Health Care/statistics & numerical data , Social Stigma , Adolescent , Adult , Female , Humans , Longitudinal Studies , Male , Mental Disorders/therapy , Middle Aged , Young Adult
17.
Sci Rep ; 9(1): 16408, 2019 11 25.
Article in English | MEDLINE | ID: mdl-31767876

ABSTRACT

Detection of protein biomarkers is an important tool for medical diagnostics, typically exploiting concentration of particular biomarkers or biomarker release from tissues. We sought to establish whether proteins not normally released by living cells can be extracted without harming cells, with a view to extending this into biomarker harvest for medical diagnosis and other applications. Styrene maleic acid (SMA) is a polymer that extracts nanodiscs of biological membranes (containing membrane proteins) from cells. Hitherto it has been used to harvest SMA-lipid-membrane protein particles (SMALP) for biochemical study, by destroying the living cellular specimen. In this study, we applied SMA at low concentration to human primary cardiovascular cells and rat vascular tissue, to 'biopsy' cell proteins while avoiding significant reductions in cell viability. SMA at 6.25 parts per million harvested proteins from cells and tissues without causing significant release of cytosolic dye (calcein) or reduction in cell viability at 24 and 72 hours post-SMA (MTT assay). A wide range of proteins were recovered (20-200 kDa) and a number identified by mass spectrometry: this confirmed protein recovery from plasma membrane, intracellular membranes and cell cytosol without associated cell death. These data demonstrate the feasibility of non-lethally sampling proteins from cells, greatly extending our sampling capability, which could yield new physiological and/or pathological biomarkers.


Subject(s)
Lipid-Linked Proteins/analysis , Maleates/pharmacology , Muscle, Smooth, Vascular/cytology , Myocardium/cytology , Styrene/chemistry , Animals , Cell Death , Cells, Cultured , Fibroblasts/cytology , Fibroblasts/drug effects , Fibroblasts/metabolism , Heart/drug effects , Humans , Maleates/chemistry , Mass Spectrometry , Muscle, Smooth, Vascular/drug effects , Muscle, Smooth, Vascular/metabolism , Myocardium/metabolism , Myocytes, Smooth Muscle/cytology , Myocytes, Smooth Muscle/drug effects , Myocytes, Smooth Muscle/metabolism , Primary Cell Culture , Rats
18.
BMJ Open ; 9(2): e023630, 2019 02 27.
Article in English | MEDLINE | ID: mdl-30819702

ABSTRACT

OBJECTIVES: Sugar-sweetened beverage (SSB) consumption in Australian Aboriginal and Torres Strait Islander people is reported to be disproportionally high compared with the general Australian population. This review aimed to scope the literature documenting SSB consumption and interventions to reduce SSB consumption among Australian Aboriginal and Torres Strait Islander people. Findings will inform strategies to address SSB consumption in Aboriginal and Torres Strait Islander communities. METHODS: PubMed, SCOPUS, CINAHL, Informit, Joanna Briggs Institute EBP, Mura databases and grey literature were searched for articles published between January 1980 and June 2018. Studies were included if providing data specific to an Australian Aboriginal and/or Torres Strait Islander population's SSB consumption or an intervention that focused on reducing SSB consumption in this population. DESIGN: Systematic scoping review. RESULTS: 59 articles were included (1846 screened). While reported SSB consumption was high, there were age-related and community-related differences observed in some studies. Most studies were conducted in remote or rural settings. Implementation of nutrition interventions that included an SSB component has built progressively in remote communities since the 1980s with a growing focus on community-driven, culturally sensitive approaches. More recent studies have focused exclusively on SSB consumption. Key SSB-related intervention elements included incentivising healthier options; reducing availability of less-healthy options; nutrition education; multifaceted or policy implementation (store nutrition or government policy). CONCLUSIONS: There was a relatively large number of studies reporting data on SSB consumption and/or sales, predominantly from remote and rural settings. During analysis it was subjectively clear that the more impactful studies were those which were community driven or involved extensive community consultation and collaboration. Extracting additional SSB-specific consumption data from an existing nationally representative survey of Aboriginal and Torres Strait Islander people could provide detailed information for demographic subgroups and benchmarks for future interventions. It is recommended that a consistent, culturally appropriate, set of consumption measures be developed.


Subject(s)
Native Hawaiian or Other Pacific Islander/statistics & numerical data , Sugar-Sweetened Beverages/statistics & numerical data , Adolescent , Australia/epidemiology , Child , Female , Humans , Male , Sugar-Sweetened Beverages/adverse effects , Young Adult
19.
J Consult Clin Psychol ; 76(2): 272-81, 2008 Apr.
Article in English | MEDLINE | ID: mdl-18377123

ABSTRACT

The purpose of the research was to assess the diagnostic efficiency of the Primary Care Posttraumatic Stress Disorder Screen (PC-PTSD) and the Posttraumatic Stress Disorder Checklist (PCL) as clinical screening tools for active duty soldiers recently returned from a combat deployment. A secondary goal was to examine the item-level characteristics of both the PC-PTSD and the PCL. A validation study conducted with a sample of 352 service members showed that both the PC-PTSD and PCL had good diagnostic efficiency. The overall diagnostic efficiency assessed by the area under the curve (AUC) was virtually the same for both the PC-PTSD and PCL. The most efficient cutoff values for the PC-PTSD were either 2 or 3 "yes" responses with the latter favoring specificity. For the PCL, the most efficient cutoff values were between 30 and 34, mirroring recommended PCL cutoff values from some studies in primary care settings. The examination of item characteristics suggested a 4-item PCL with an AUC virtually identical to that of the full PCL. Item analyses also identified that the most discriminate item in both scales pertained to symptoms of avoidance. Implications and limitations are discussed.


Subject(s)
Combat Disorders/diagnosis , Mass Screening/statistics & numerical data , Military Personnel/psychology , Personality Assessment/statistics & numerical data , Primary Health Care , Adult , Combat Disorders/psychology , Female , Humans , Iraq War, 2003-2011 , Male , Psychometrics/statistics & numerical data , Reproducibility of Results
20.
Mil Med ; 173(5): 411-21, 2008 May.
Article in English | MEDLINE | ID: mdl-18543560

ABSTRACT

Brief structured clinical interviews are a key component of the Department of Defense postdeployment health reassessment program. Such interviews are critical for recommending individuals for follow-up assessment and care. To standardize the interview process, U.S. Army Medical Research Unit-Europe developed a structured interview guide, designed in response to both clinical requirements and research findings. The guide includes sections on depression, suicidality, post-traumatic stress disorder, anger, relationship problems, alcohol problems, and sleep problems. In addition, there is an open-ended section on other problems and a section for case dispositions. Data from a 2005 blinded validation study with soldiers returning from a 1-year-long combat deployment are included to demonstrate the utility of the structured interview. Guidelines and implementation considerations for the use of the structured interview are discussed.


Subject(s)
Mass Screening , Mental Disorders/diagnosis , Military Personnel , Military Psychiatry , Program Development , Psychological Tests , Stress, Psychological , Warfare , Adolescent , Adult , Female , Humans , Interviews as Topic , Male , Pilot Projects , Practice Guidelines as Topic , Psychometrics , Risk Assessment , Risk Factors , Time Factors , Triage , United States
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