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1.
Lancet ; 398 Suppl 1: S18, 2021 Jul.
Article in English | MEDLINE | ID: mdl-34227949

ABSTRACT

BACKGROUND: Targeted client communication using text messages can inform, motivate, and remind pregnant and postpartum women to use care in a timely way. The mixed results of previous studies of the effectiveness of targeted client communication highlight the importance of theory-based co-design with users. We planned, developed, and tested a theory-based intervention tailored to pregnant and postpartum women, to be automatically distributed via an electronic maternal and child health registry in occupied Palestinian territory. METHODS: We did 26 in-depth interviews with pregnant women and health-care providers in seven purposively selected public primary health-care clinics in the West Bank and Gaza to include clinics with different profiles. An interview guide was developed using the Health Belief Model to explore women's perceptions of high-risk conditions (anaemia, hypertension, diabetes, and fetal growth restriction) and timely attendance for antenatal care, as predefined by a national expert panel. We did thematic analyses of the interview data. Based on the results, we composed messages for a targeted client communication intervention, applying concepts from the Model of Actionable Feedback, social nudging, and enhanced active choice. We assessed the acceptability and understandability of the messages through unstructured interviews with local health promotion experts, health-care providers, and pregnant women. FINDINGS: The recurring themes indicated that most women were aware of the health consequences of anaemia, hypertension, and diabetes, but that they seldom associated these conditions with pregnancy. We identified knowledge gaps and low awareness of susceptibility to and severity of these complications and the benefits of timely antenatal care. The actionable messages were iteratively improved with stakeholder and end-user feedback after presenting the initial draft, and the messages deemed were understandable and acceptable based on reflections during unstructured assessment. INTERPRETATION: Following a stepwise iterative process by a theory-based approach and co-designing the intervention with users, we revealed elements critical to an efficacious targeted client communication intervention. A potential limitation of our study is that conducting in-depth interviews on several health conditions simultaneously might have reduced the depth of information we could have obtained. The strength of our study was that we assessed for, developed, and refined the intervention following recommended theoretical frameworks and best practices. The effectiveness of this intervention is under evaluation in a cluster-randomised trial (ISRCTN10520687). FUNDING: European Research Council and Research Council of Norway.

2.
Food Qual Prefer ; 93: 104231, 2021 Oct.
Article in English | MEDLINE | ID: mdl-36569642

ABSTRACT

We aimed to evaluate the changes in eating behaviours of the adult population across 16 European countries due to the COVID-19 confinement and to evaluate whether these changes were somehow related to the severity of the containment measures applied in each country. An anonymous online self-reported questionnaire on socio-demographic characteristics, validated 14-items Mediterranean diet (MedDiet) Adherence Screener (MEDAS) as a reference of a healthy diet, eating and lifestyle behaviours prior to and during the COVID-19 confinement was used to collect data. The study included an adult population residing in 16 European countries at the time of the survey. Aggregated Stringency Index (SI) score, based on data from the Oxford COVID-19 Government Response Tracker, was calculated for each country at the time the questionnaire was distributed (range: 0-100). A total of 36,185 participants completed the questionnaire (77.6% female, 75.2% with high educational level and 42.7% aged between 21 and 35 years). In comparison to pre-confinement, a significantly higher adherence to the MedDiet during the confinement was observed across all countries (overall MEDAS score prior to- and during confinement: 5.23 ± 2.06 vs. 6.15 ± 2.06; p < 0.001), with the largest increase seen in Greece and North Macedonia. The highest adherence to MedDiet during confinement was found in Spain and Portugal (7.18 ± 1.84 and 7.34 ± 1.95, respectively). Stricter contingency restrictions seemed to lead to a significantly higher increase in the adherence to the MedDiet. The findings from this cross-sectional study could be used to inform current diet-related public health guidelines to ensure optimal nutrition is followed among the population, which in turn would help to alleviate the current public health crisis.

3.
BMC Med Inform Decis Mak ; 20(1): 1, 2020 01 06.
Article in English | MEDLINE | ID: mdl-31906929

ABSTRACT

BACKGROUND: Targeted client communication (TCC) using text messages can inform, motivate and remind pregnant and postpartum women of timely utilization of care. The mixed results of the effectiveness of TCC interventions points to the importance of theory based interventions that are co-design with users. The aim of this paper is to describe the planning, development, and evaluation of a theory led TCC intervention, tailored to pregnant and postpartum women and automated from the Palestinian electronic maternal and child health registry. METHODS: We used the Health Belief Model to develop interview guides to explore women's perceptions of antenatal care (ANC), with a focus on high-risk pregnancy conditions (anemia, hypertensive disorders in pregnancy, gestational diabetes mellitus, and fetal growth restriction), and untimely ANC attendance, issues predefined by a national expert panel as being of high interest. We performed 18 in-depth interviews with women, and eight with healthcare providers in public primary healthcare clinics in the West Bank and Gaza. Grounding on the results of the in-depth interviews, we used concepts from the Model of Actionable Feedback, social nudging and Enhanced Active Choice to compose the TCC content to be sent as text messages. We assessed the acceptability and understandability of the draft text messages through unstructured interviews with local health promotion experts, healthcare providers, and pregnant women. RESULTS: We found low awareness of the importance of timely attendance to ANC, and the benefits of ANC for pregnancy outcomes. We identified knowledge gaps and beliefs in the domains of low awareness of susceptibility to, and severity of, anemia, hypertension, and diabetes complications in pregnancy. To increase the utilization of ANC and bridge the identified gaps, we iteratively composed actionable text messages with users, using recommended message framing models. We developed algorithms to trigger tailored text messages with higher intensity for women with a higher risk profile documented in the electronic health registry. CONCLUSIONS: We developed an optimized TCC intervention underpinned by behavior change theory and concepts, and co-designed with users following an iterative process. The electronic maternal and child health registry can serve as a unique platform for TCC interventions using text messages.


Subject(s)
Child Health , Women , Communication , Electronics , Family , Female , Humans , Male , Patients , Pregnancy , Prenatal Care , Registries
4.
J Basic Microbiol ; 60(10): 905-915, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32852853

ABSTRACT

Streptococcus pneumoniae (the pneumococcus) has wall teichoic acid (WTA) and lipoteichoic acid (LTA) expressing the Forssman antigen (FA). Two lectins, Dolichos biflorus agglutinin (DBA) and Helix pomatia agglutinin (HPA), are known to bind FA. To determine the molecular structure targeted by these two lectins, different pneumococcal strains were studied for DBA/HPA binding with flow cytometry and fluorescence microscopy. Genetic experiments were used to further examine the lectins' molecular target. Twelve strains were positive for DBA binding, whereas three were negative. Super-resolution microscopy showed that DBA stained only the subcapsular area of pneumococci. The three DBA nonbinders showed no phosphorylcholine esterase (Pce) activity in vitro, whereas 10 DBA binders displayed Pce activity (the remaining two strains were DBA binders with no Pce activity in vitro). The pcegene sequence for 10 representative strains revealed two functional pce alleles, the previously recognized "allele A" and a newly discovered "allele B" (with 12 additional nucleotides). Isolates with allele B showed no Pce activity in vitro but did bind to DBA, indicating allele B Pce is functional in vivo. Genetic transfer experiments confirmed that either allele is sufficient (and necessary) for DBA binding. The three DBA nonbinders had various mutations that affected Pce function. Observations with HPA were identical to those with DBA. We show that DBA and HPA bind only to the WTA/LTA of pneumococcal isolates with a functional Pce enzyme. A newly discovered Pce variant (allele B) is functional in vivo but nonfunctional when assayed in vitro.


Subject(s)
Lectins/metabolism , Plant Lectins/metabolism , Receptors, Cell Surface/metabolism , Streptococcus pneumoniae/metabolism , Alleles , Bacterial Capsules/genetics , Bacterial Capsules/metabolism , Mutation , Receptors, Cell Surface/genetics , Streptococcus pneumoniae/classification , Streptococcus pneumoniae/genetics , Teichoic Acids/metabolism
5.
Mol Vis ; 25: 311-328, 2019.
Article in English | MEDLINE | ID: mdl-31341380

ABSTRACT

Purpose: In juvenile tree shrews that have developed minus lens-induced myopia, if lens treatment is discontinued, refractive recovery (REC) occurs. However, in age-matched juvenile animals, plus-lens wear (PLW) produces little refractive change, although the visual stimulus (myopia) is similar (an "IGNORE" response). Because the sclera controls axial elongation and refractive error, we examined gene expression in the sclera produced by PLW and compared it with the gene expression signature produced by REC to learn whether these similar refractive conditions produce similar, or differing, scleral responses. Methods: Eight groups of tree shrews (n = 7 per group) were examined. Four groups wore a monocular -5 D lens for 11 days until 35 days of visual experience (DVE). Lens wear was then discontinued, and the animals recovered for 0 h (REC-0), 2 h (REC-2h), 1 day (REC-1d), or 4 days (REC-4d). Starting at 35 DVE, three groups wore a monocular +5 D lens for 2 h (PLW-2h), 1 day (PLW-1d), or 4 days (PLW-4d). A normal group (PLW-0) was examined at 38 DVE to provide baseline measures. Using quantitative real-time PCR (qPCR), we examined scleral mRNA levels in recovering, plus-lens treated, and untreated control eyes for 55 candidate genes whose protein products included signaling molecules, metallopeptidases (MPs) and their inhibitors (tissue inhibitors of metallopeptidases [TIMPs]), and extracellular matrix proteins. Results: No refractive recovery was measured in the REC-2h group. The scleral mRNA expression pattern for recovering versus untreated control eyes after 2 h of recovery was similar to that found for the group (REC-0) that had no recovery time. Many genes in both groups still had downregulated expression in the treated eyes versus the control eyes. The REC-1d group showed little refractive recovery (0.1 ± 0.1 D, mean ± standard error of the mean [SEM]), and the mRNA expression pattern was similar to that of the REC-2h group, but had fewer statistically significantly downregulated genes in the recovering eyes. The REC-4d group recovered refractively by 2.6 ± 0.4 D, and displayed a "STOP" gene expression signature of mostly upregulated mRNA expression in the recovering eyes compared with the untreated control eyes. The PLW-0 (normal) group and the PLW-2h group showed no statistically significant differential gene expression. The PLW-1d group showed a small hyperopic shift (0.1 ± 0.2 D). Two genes were differentially expressed: NPR3 was upregulated in the plus lens-wearing eyes, and IGF1 was downregulated. The PLW-4d group showed a similar hyperopic shift (0.3 ± 0.4 D), confirming that the plus lens-induced 5 D of myopia produced little refractive change. In the sclera, there was an IGNORE pattern of general differential upregulation of genes in the treated eyes (22 upregulated, one downregulated) that was distinct from the STOP signature found in recovery. Ten genes were upregulated in the REC-4d group and the PLW-4d group. However, ten other genes were differentially expressed in recovery, but not in plus-lens wear, while 12 genes were differentially expressed in plus-lens wear but not in recovery. Conclusions: One day of recovery is not long enough for the emmetropization mechanism to produce significant gene expression changes in the sclera or refractive recovery. After 4 days, recovery and plus-lens wear produced altered scleral gene expression, but the patterns ("signatures") differed as to which genes showed altered expression, and whether the gene expression was up- or downregulated. Thus, myopia produced altered scleral mRNA expression in recovery and plus-lens wear, confirming that signals initiated by the retina reached the sclera, but the sclera in the elongated recovering eye responded differently from a normal sclera. This might have occurred because the recovering-eye sclera had remodeled during minus-lens compensation, making the sclera respond differently to the signals initiated by the retina. However, the myopia-produced retinal signals in plus lens-wearing animals also may have differed from those in the recovering eyes by the time the signals passed through the RPE and choroid to reach the sclera.


Subject(s)
Gene Expression Profiling , Gene Expression Regulation , Lenses, Intraocular , Sclera/metabolism , Tupaiidae/genetics , Animals , Disease Models, Animal , Myopia/genetics , Refraction, Ocular , Sclera/physiopathology
6.
Nephrol Dial Transplant ; 34(6): 1000-1008, 2019 06 01.
Article in English | MEDLINE | ID: mdl-30053159

ABSTRACT

BACKGROUND: A reduction in renal angiomyolipoma volume observed with everolimus (EVE) treatment in patients with tuberous sclerosis complex (TSC) has been postulated to translate to clinical benefit by reducing the risk of renal hemorrhage and chronic renal failure. METHODS: The long-term effects of EVE on renal function (∼4 years of treatment) were examined in patients treated with EVE in the Phase 3 EXIST-1 and EXIST-2 studies. Patients in EXIST-1 had TSC and subependymal giant cell astrocytoma (SEGA), and patients in EXIST-2 had renal angiomyolipoma and a definite diagnosis of TSC or sporadic lymphangioleiomyomatosis. EVE was administered at 4.5 mg/m2/day, with adjustment to achieve target trough levels of 5-15 ng/mL in EXIST-1 and at 10 mg/day in EXIST-2. Estimated glomerular filtration rate (eGFR) and creatinine levels were assessed at baseline, at Weeks 2, 4, 6, 8, 12 and 18, then every 3 months thereafter. Proteinuria was graded according to National Cancer Institute Common Terminology Criteria for Adverse Events version 3.0. RESULTS: A total of 111 patients from EXIST-1 and 112 patients from EXIST-2 were included in this analysis. Respective mean ages at EVE initiation were 10.5 [standard deviation (SD) 6.45] and 33.2 (SD 10.29) years, and 3.6% and 37.5% of patients had undergone prior renal intervention. Mean baseline eGFR was 115 and 88 mL/min/1.73 m2 in EXIST-1 and EXIST-2, respectively. Overall, mean eGFR remained stable over time in both studies, with an decline in renal function mostly confined to some patients with severely compromised renal function before treatment. Patients with prior renal intervention exhibited low eGFR values throughout the study. The incidence of proteinuria increased after initiating treatment with EVE and was mostly Grade 1/2 in severity, with Grade 3 proteinuria reported in only two patients. Measurements of proteinuria were limited by the use of urine dipstick tests. CONCLUSIONS: The use of EVE does not appear to be nephrotoxic in patients with SEGA or renal angiomyolipoma associated with TSC and may preserve renal function in most patients.ClinicalTrials.gov identifiers NCT00789828 and NCT00790400.


Subject(s)
Angiomyolipoma/drug therapy , Everolimus/therapeutic use , Kidney Neoplasms/drug therapy , Tuberous Sclerosis/drug therapy , Adolescent , Adult , Antineoplastic Agents/therapeutic use , Astrocytoma , Child , Child, Preschool , Double-Blind Method , Female , Glomerular Filtration Rate , Humans , Immunosuppressive Agents/therapeutic use , Infant , Kidney , Kidney Failure, Chronic/complications , Lymphangioleiomyomatosis/drug therapy , Male , Middle Aged , Proteinuria/drug therapy , Renal Insufficiency, Chronic/complications , Retrospective Studies , Young Adult
7.
Epilepsy Behav ; 94: 93-99, 2019 05.
Article in English | MEDLINE | ID: mdl-30897536

ABSTRACT

Few studies have examined treatment response in electrical status epilepticus in sleep (ESES), and fewer still have evaluated the effect of corticosteroid treatment employing a pulse-dose regimen. The aim of this study was to examine the effectiveness of pulse-dose prednisone in treating language and behavioral disturbances that often accompany ESES. The sample included 17 patients age 5 to 10 years at time of baseline electroencephalogram (EEG) and neuropsychological assessments. For all patients, focal, multifocal, or generalized spike and wave activity occupied greater than 50% of the nonrapid eye movement (REM) sleep record. Patients were seen for follow-up EEG recording and neuropsychological testing with an average of 10 months following initiation of pulse-dose prednisone. Improvement in language or behavior was examined in relation to resolution of ESES on EEG, age at seizure onset and treatment, duration of ESES, duration of treatment, lesional versus nonlesional epilepsy, history of language or behavioral regression, seizure control at follow-up, and intelligence quotient (IQ). With the exception of a greater likelihood of patients with low IQ to demonstrate improvement in language or behavior, improvement was seen in most patients, irrespective of ESES or other factors.


Subject(s)
Glucocorticoids/therapeutic use , Prednisone/therapeutic use , Problem Behavior , Sleep Wake Disorders/drug therapy , Speech Disorders/physiopathology , Status Epilepticus/drug therapy , Attention Deficit Disorder with Hyperactivity/epidemiology , Autism Spectrum Disorder/epidemiology , Child , Electroencephalography , Female , Humans , Intellectual Disability/epidemiology , Language , Language Disorders/complications , Language Disorders/physiopathology , Male , Neuropsychological Tests , Pulse Therapy, Drug , Seizures , Speech Disorders/complications , Status Epilepticus/complications , Status Epilepticus/physiopathology , Syndrome , Treatment Outcome
8.
Appetite ; 133: 61-69, 2019 02 01.
Article in English | MEDLINE | ID: mdl-30365970

ABSTRACT

Technological development in traditional foods is not always in line with consumer acceptability. This study aimed to determine consumer perception of selected Indonesian traditional food products in their original and modernised versions. An internet-based survey (N = 310) was distributed to validate the perception of Indonesian food products using pictures and descriptions. The participated respondents met these criteria: (1) they were familiar with the traditional foods in this survey; and (2) they recognized and had used modernised traditional foods in this survey at least once. Seventeen products (tempe usar, tempe ragi, hygienic tempe, homemade sambal, sambal in a jar, sambal sprinkles, fresh coconut milk, UHT coconut milk, coconut milk powder, gudeg kendil, gudeg besek, boxed gudeg, canned gudeg, ground seasoning, instant seasoning paste, dadih, and yoghurt), were described to gauge consumer perception of the following variables: Modern, Traditional, Original, Authentic, Natural and Hedonic response. Partial Least Square Regression was performed to generate an overview of the product and variable variation. The results showed that the variable Modern was inversely correlated with the remaining variables, including the Hedonic response. The UHT coconut milk, coconut milk powder, instant seasoning paste, canned gudeg, sambal in a jar, sambal sprinkles, yoghurt, and hygienic tempe were perceived as the most Modern. In contrast, products that were perceived as Traditional were more preferred, including homemade sambal, ground seasoning, gudeg kendil, gudeg besek, tempe usar, and fresh coconut milk. This study shows the effect of modernisation on consumer perception and how it correlates to overall liking. Consumers' background psychographics such as the Food Neophobia Scale and attitude towards traditional food (ATTF) questionnaire have a significant effect on product perceptions, especially to the variables Hedonic, Modern, Authentic and Original.


Subject(s)
Culture , Food Preferences , Social Change , Adult , Female , Food Handling , Humans , Indonesia , Male , Middle Aged , Surveys and Questionnaires , Young Adult
9.
Exp Eye Res ; 168: 77-88, 2018 03.
Article in English | MEDLINE | ID: mdl-29329973

ABSTRACT

Hyperopic refractive error is detected by retinal neurons, which generate GO signals through a direct emmetropization signaling cascade: retinal pigment epithelium (RPE) into choroid and then into sclera, thereby increasing axial elongation. To examine signaling early in this cascade, we measured gene expression in the retina and RPE after short exposure to hyperopia produced by minus-lens wear. Gene expression in each tissue was compared with gene expression in combined retina + RPE. Starting 24 days after normal eye opening, three groups of juvenile tree shrews (n = 7 each) wore a monocular -5 D lens. The untreated fellow eye served as a control. The "6h" group wore the lens for 6 h; the "24h" group wore the lens for 24 h; each group provided separate retina and RPE tissues. Group "24hC" wore the lens for 24 h and provided combined retina + RPE tissue. Quantitative PCR was used to measure the relative differences (treated eye vs. control eye) in mRNA levels for 66 candidate genes. In the retina after 6 h, mRNA levels for seven genes were significantly regulated: EGR1 and FOS (early intermediate genes) were down-regulated in the treated eyes. Genes with secreted protein products, BMP2 and CTGF, were down-regulated, whilst FGF10, IL18, and SST were up-regulated. After 24 h the pattern changed; only one of the seven genes still showed differential expression; BMP2 was still down-regulated. Two new genes with secreted protein products, IGF2 and VIP, were up-regulated. In the RPE, consistent with its role in receiving, processing, and transmitting GO signaling, differential expression was found for genes whose protein products are at the cell surface, intracellular, in the nucleus, and are secreted. After 6 h, mRNA levels for 17 genes were down-regulated in the treated eyes, whilst four genes (GJA1, IGF2R, LRP2, and IL18) were up-regulated. After 24 h the pattern was similar; mRNA levels for 14 of the same genes were still down-regulated; only LRP2 remained up-regulated. mRNA levels for six genes no longer showed differential expression, whilst nine genes, not differentially expressed at 6 h, now showed differential expression. In the combined retina + RPE after 24 h, mRNA levels for only seven genes were differentially regulated despite the differential expression of many genes in the RPE. Four genes showed the same expression in combined tissue as in retina alone, including up-regulation of VIP despite significant VIP down-regulation in RPE. Thus, hyperopia-induced GO signaling, as measured by differential gene expression, differs in the retina and the RPE. Retinal gene expression changed between 6 h and 24 h of treatment, suggesting evolution of the retinal response. Gene expression in the RPE was similar at both time points, suggesting sustained signaling. The combined retina + RPE does not accurately represent gene expression in either retina or, especially, RPE. When gene expression signatures were compared with those in choroid and sclera, GO signaling, as encoded by differential gene expression, differs in each compartment of the direct emmetropization signaling cascade.


Subject(s)
Gene Expression Regulation , Hyperopia/metabolism , Retina/metabolism , Retinal Pigment Epithelium/metabolism , Animals , Axial Length, Eye/physiology , Disease Models, Animal , Gene Expression Profiling , RNA, Messenger/metabolism , Refraction, Ocular/physiology , Tupaiidae
10.
Pediatr Nephrol ; 33(1): 101-109, 2018 Jan.
Article in English | MEDLINE | ID: mdl-28993887

ABSTRACT

BACKGROUND: Patients with tuberous sclerosis complex (TSC) often have multiple TSC-associated hamartomas, particularly in the brain and kidney. METHODS: This was a post hoc analysis of pediatric patients being treated for subependymal giant cell astrocytomas (SEGAs) during the phase 3, randomized, double-blind, placebo-controlled EXIST-1 trial. Patients were initially randomly assigned to receive everolimus 4.5 mg/m2/day (target blood trough 5-15 mg/dl) or placebo and could continue in an open-label extension phase. Angiomyolipoma response rates were analyzed in patients aged <18 years with ≥1 target angiomyolipoma lesion at baseline. Response was defined as the proportion of patients with a ≥50% reduction in the sum volume of target renal angiomyolipomata from baseline, in the absence of new target angiomyolipomata, a >20% increase in kidney volume from nadir, and angiomyolipoma-related bleeding ≥ grade 2. Tolerability was also assessed. RESULTS: Overall, this analysis included 33 patients. Renal angiomyolipoma response was achieved by 75.8% of patients (95% confidence interval, 57.7-88.9%), with sustained mean reductions in renal angiomyolipoma volume over nearly 4 years of treatment. In addition, most (≥80%) achieved clinically relevant reductions in angiomyolipoma volume (≥50%), beginning at week 24 and continuing for the remainder of the study. Everolimus was generally well tolerated in this subgroup, with most adverse events being grade 1 or 2 in severity. CONCLUSIONS: Although everolimus is currently not indicated for this use, this analysis from EXIST-1 demonstrates its long-term efficacy and safety for the treatment of renal angiomyolipoma in pediatric patients undergoing treatment for TSC-associated SEGA.


Subject(s)
Angiomyolipoma/drug therapy , Antineoplastic Agents/therapeutic use , Everolimus/therapeutic use , Kidney Neoplasms/drug therapy , Tuberous Sclerosis/complications , Adolescent , Angiomyolipoma/complications , Antineoplastic Agents/adverse effects , Astrocytoma/complications , Astrocytoma/drug therapy , Child , Child, Preschool , Double-Blind Method , Everolimus/adverse effects , Female , Humans , Kidney/pathology , Kidney Neoplasms/pathology , Male , Treatment Outcome , Tuberous Sclerosis/drug therapy
11.
Vis Neurosci ; 34: E003, 2017 01.
Article in English | MEDLINE | ID: mdl-28304244

ABSTRACT

We examined the effect of intravitreal injections of D1-like and D2-like dopamine receptor agonists and antagonists and D4 receptor drugs on form-deprivation myopia (FDM) in tree shrews, mammals closely related to primates. In eleven groups (n = 7 per group), we measured the amount of FDM produced by monocular form deprivation (FD) over an 11-day treatment period. The untreated fellow eye served as a control. Animals also received daily 5 µL intravitreal injections in the FD eye. The reference group received 0.85% NaCl vehicle. Four groups received a higher, or lower, dose of a D1-like receptor agonist (SKF38393) or antagonist (SCH23390). Four groups received a higher, or lower, dose of a D2-like receptor agonist (quinpirole) or antagonist (spiperone). Two groups received the D4 receptor agonist (PD168077) or antagonist (PD168568). Refractions were measured daily; axial component dimensions were measured on day 1 (before treatment) and day 12. We found that in groups receiving the D1-like receptor agonist or antagonist, the development of FDM and altered ocular component dimensions did not differ from the NaCl group. Groups receiving the D2-like receptor agonist or antagonist at the higher dose developed significantly less FDM and had shorter vitreous chambers than the NaCl group. The D4 receptor agonist, but not the antagonist, was nearly as effective as the D2-like agonist in reducing FDM. Thus, using intravitreally-administered agents, we did not find evidence supporting a role for the D1-like receptor pathway in reducing FDM in tree shrews. The reduction of FDM by the dopamine D2-like agonist supported a role for the D2-like receptor pathway in the control of FDM. The reduction of FDM by the D4 receptor agonist, but not the D4 antagonist, suggests an important role for activation of the dopamine D4 receptor in the control of axial elongation and refractive development.


Subject(s)
Dopamine Agonists/pharmacology , Myopia/drug therapy , Receptors, Dopamine D1/agonists , Receptors, Dopamine D2/agonists , Receptors, Dopamine D4/agonists , Refraction, Ocular/drug effects , Sensory Deprivation , Animals , Axial Length, Eye/pathology , Disease Models, Animal , Dopamine Antagonists/pharmacology , Intravitreal Injections , Male , Mass Spectrometry , Receptors, Dopamine D1/antagonists & inhibitors , Receptors, Dopamine D4/antagonists & inhibitors , Tupaiidae
12.
Appetite ; 113: 358-367, 2017 06 01.
Article in English | MEDLINE | ID: mdl-28268200

ABSTRACT

BACKGROUND: Food choices are influenced by an individual's attitude towards foods. Food neophobia may be associated with less variety of diets, inadequate nutrient intake and high product failure rate for new food products entering the market. To quantify the extent of these challenges, instruments to measure the food neophobia in different target groups are needed. Several such instruments with significantly different measurement outcomes and procedures have been developed. This review provides an overview and discusses strengths and weaknesses of these instruments. OBJECTIVE: We evaluate strengths and weaknesses of previously developed instruments to measure neophobia and willingness to try unfamiliar foods. DESIGN: Literature was searched through the databases Web of Science and Google Scholar. We identified 255 studies concerning neophobia and willingness to try unfamiliar foods. Of these, 13 studies encompassing 13 instruments to measure neophobia and willingness to try unfamiliar foods were included in the review. Results are summarized and evaluated with a narrative approach. RESULTS: In the 13 instruments to assess neophobia and willingness to try unfamiliar foods, 113 to 16.644 subjects aged 2-65 years were involved, scales with 3-7 response categories were used and behavioral validation tests were included in 6 studies. CONCLUSIONS: Several instruments to measure neophobia and willingness to try unfamiliar foods exist. We recommend selecting one or more among the 13 instruments reviewed in this paper to assess relevant aspects of neophobia.


Subject(s)
Diet/psychology , Food Preferences/psychology , Phobic Disorders/diagnosis , Recognition, Psychology , Surveys and Questionnaires , Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Phobic Disorders/psychology , Young Adult
13.
Appetite ; 113: 255-263, 2017 06 01.
Article in English | MEDLINE | ID: mdl-28242312

ABSTRACT

BACKGROUND: The main tool currently used to measure food neophobia (the Food Neophobia Scale, FNS, developed by Pliner & Hobden, 1992) may not remain optimal forever. It was developed around 25 years ago, and the perception and availability of "novel" and "ethnic" foods may have changed in the meantime. Consequently, there is a need for developing updated tools for measuring food neophobia. OBJECTIVE: To develop novel tools to measure food neophobia in children. DESIGN: Based on a review of 13 designs to assess food neophobia and willingness to try unfamiliar foods, a Food Neophobia Test Tool (FNTT) was developed. A questionnaire including the FNS, a 19-item FNTT, items about willingness to taste novel foods in different surroundings and a behavioral test was administered to 235 children aged 9-13 years. Reliability and validity of the FNS and FNTT were assessed through calculations of Cronbach's alpha, item-item and item-rest correlations. Comprehension issues related to tools were evaluated based on qualitative observations and finally, behavioral validity was assessed. RESULTS: A considerable number of children indicated difficulties understanding certain items in the original FNS. FNTT could be reduced to a 6- and 9-item tool with high validity (item-rest coefficients, r = 0.60-0.80). Internal consistency of the FNTT (Cronbach α ≥ 0.90) was higher relative to the FNS (Cronbach α ≥ 0.72). Scores from the FNTT correlated significantly (p < 0.05) with results from the behavioral test confirming construct validity of the FNTT as a measure of neophobic behavior. CONCLUSIONS: Results from this study provide evidence for the FNTT as reliable and valid tool for measuring food neophobia in children aged 9-13 years. Moreover, when modified, the FNS continue to produce reliable and valid results.


Subject(s)
Child Behavior/psychology , Food Preferences/psychology , Phobic Disorders/diagnosis , Surveys and Questionnaires/standards , Adolescent , Child , Female , Humans , Male , Phobic Disorders/psychology , Psychometrics , Recognition, Psychology , Reproducibility of Results
14.
Appetite ; 113: 327-357, 2017 06 01.
Article in English | MEDLINE | ID: mdl-28286164

ABSTRACT

The interest in children's eating behaviours and how to change them has been growing in recent years. This review examines the following questions: What strategies have been used to change children's eating behaviours? Have their effects been experimentally demonstrated? And, are the effects transient or enduring? Medline and Cab abstract (Ovid) and Web of Science (Thomson Reuters) were used to identify the experimental studies. A total of 120 experimental studies were identified and they are presented grouped within these 11 topics; parental control, reward, social facilitation, cooking programs, school gardens, sensory education, availability and accessibility, choice architecture and nudging, branding and food packaging, preparation and serving style, and offering a choice. In conclusion, controlling strategies for changing children's eating behaviour in a positive direction appear to be counterproductive. Hands-on approaches such as gardening and cooking programs may encourage greater vegetable consumption and may have a larger effect compared to nutrition education. Providing children with free, accessible fruits and vegetables have been experimentally shown to positively affect long-term eating behaviour. The authors recommend future research to examine how taste and palatability can positively affect children's attitudes and eating behaviour.


Subject(s)
Behavior Control/methods , Choice Behavior , Eating/psychology , Feeding Behavior/psychology , Food Preferences/psychology , Adolescent , Behavior Control/psychology , Child , Child, Preschool , Cooking/methods , Female , Gardening/methods , Health Education/methods , Humans , Infant , Male
15.
Exp Eye Res ; 145: 289-296, 2016 04.
Article in English | MEDLINE | ID: mdl-26836248

ABSTRACT

lntravitreal injection of substances dissolved in a vehicle solution is a common tool used to assess retinal function. We examined the effect of injection procedures (three groups) and vehicle solutions (four groups) on the development of form deprivation myopia (FDM) in juvenile tree shrews, mammals closely related to primates, starting at 24 days of visual experience (about 45 days of age). In seven groups (n = 7 per group), the myopia produced by monocular form deprivation (FD) was measured daily for 12 days during an 11-day treatment period. The FD eye was randomly selected; the contralateral eye served as an untreated control. The refractive state of both eyes was measured daily, starting just before FD began (day 1); axial component dimensions were measured on day 1 and after eleven days of treatment (day 12). Procedure groups: the myopia (treated eye - control eye refraction) in the FD group was the reference. The sham group only underwent brief daily anesthesia and opening of the conjunctiva to expose the sclera. The puncture group, in addition, had a pipette inserted daily into the vitreous. In four vehicle groups, 5 µL of vehicle was injected daily. The NaCl group received 0.85% NaCl. In the NaCl + ascorbic acid group, 1 mg/mL of ascorbic acid was added. The water group received sterile water. The water + ascorbic acid group received water with ascorbic acid (1 mg/mL). We found that the procedures associated with intravitreal injections (anesthesia, opening of the conjunctiva, and puncture of the sclera) did not significantly affect the development of FDM. However, injecting 5 µL of any of the four vehicle solutions slowed the development of FDM. NaCl had a small effect; myopia development in the last 6 days (-0.15 ± 0.08 D/day) was significantly less than in the FD group (-0.55 ± 0.06 D/day). NaCl + Ascorbic acid further slowed the development of FDM on several treatment days. H2O (-0.09 ± 0.05 D/day) and H2O + ascorbic acid (-0.08 ± 0.05 D/day) both almost completely blocked myopia development. The treated eye vitreous chamber elongation, compared with the control eye, in all groups was consistent with the amount of myopia. When FD continued (days 12-16) without injections in the water and water + ascorbic acid groups, the rate of myopia development quickly increased. Thus, it appears the vehicles affected retinal signaling rather than causing damage. The effect of water and water + ascorbic acid may be due to reduced osmolality or ionic concentration near the tip of the injection pipette. The effect of ascorbic acid, compared to NaCl alone, may be due to its reported dopaminergic activity.


Subject(s)
Antioxidants/pharmacology , Ascorbic Acid/pharmacology , Intravitreal Injections/methods , Myopia/drug therapy , Ophthalmic Solutions/pharmacology , Pharmaceutical Vehicles/pharmacology , Sodium Chloride/pharmacology , Animals , Axial Length, Eye/drug effects , Disease Models, Animal , Myopia/physiopathology , Refraction, Ocular/drug effects , Sensory Deprivation , Tupaiidae
16.
Nephrol Dial Transplant ; 31(1): 111-9, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26156073

ABSTRACT

BACKGROUND: Mammalian target of rapamycin (mTOR) inhibitors are recommended as first-line treatment of renal angiomyolipoma associated with tuberous sclerosis complex (TSC) or sporadic lymphangioleiomyomatosis (sporadic LAM), but follow-up is limited. Longer term efficacy and tolerability data from a Phase 3, double-blind, placebo-controlled trial are presented. METHODS: Following favorable results from the primary analysis (data cutoff 30 June 2011) of the EXIST-2 trial, patients still receiving study treatment were allowed to enter an open-label extension. Everolimus was initiated at 10 mg once daily and titrated based on tolerability. The primary outcome was angiomyolipoma response rate (≥ 50% reduction from baseline in target lesion volumes). Safety was a secondary endpoint. RESULTS: As of the cutoff date (1 May 2013), 112 patients had received everolimus, and the response rate in 107 patients with angiomyolipoma (median duration of medication exposure of 28.9 months) was 54%. The proportion of patients achieving angiomyolipoma reductions of ≥ 30% and ≥ 50% increased over time, reaching 81.6% (62/76) and 64.5% (49/76), respectively, by Week 96. No everolimus-treated patients experienced renal bleeding. The long-term safety profile was consistent with previous reports; adverse events (AEs) were mostly Grade 1/2, and there were no new safety issues. The frequency of emerging AEs and severe AEs lessened over time. CONCLUSIONS: Longer term everolimus treatment appeared safe and effective in patients with TSC- or sporadic LAM-associated renal angiomyolipoma not requiring surgical intervention. Continued reduction in angiomyolipoma volume was demonstrated, and there was no angiomyolipoma-related bleeding; AEs were predictable and generally manageable. TRIAL REGISTRATION: clinicaltrialsgov identifier: NCT00790400 (http://clinicaltrials.gov/ct2/show/NCT00790400).


Subject(s)
Angiomyolipoma/drug therapy , Antineoplastic Agents/therapeutic use , Everolimus/therapeutic use , Kidney Neoplasms/drug therapy , Lymphangioleiomyomatosis/drug therapy , Tuberous Sclerosis/drug therapy , Adolescent , Adult , Angiomyolipoma/pathology , Disease-Free Survival , Double-Blind Method , Female , Humans , Kaplan-Meier Estimate , Kidney/pathology , Kidney Neoplasms/pathology , Male , Middle Aged , Treatment Outcome , Tumor Burden/drug effects , Young Adult
17.
Br J Clin Pharmacol ; 81(5): 958-70, 2016 May.
Article in English | MEDLINE | ID: mdl-26580489

ABSTRACT

AIMS: The purpose was to determine the exposure-response relationship of everolimus in patients with angiomyolipoma from the EXIST-2 trial and to analyze the correlation between exposure and plasma concentrations of angiogenic biomarkers in these patients. METHODS: One hundred and eighteen patients with angiomyolipoma associated with tuberous sclerosis complex (TSC) or sporadic lymphangioleiomyomatosis (sLAM) were randomly assigned 2 : 1 to receive everolimus 10 mg (n = 79) or placebo (n = 39) once daily. Blood samples for determining everolimus concentration were collected at weeks 2, 4, 12, 24 and 48 during double-blind treatment. Plasma samples for biomarker analysis were collected at baseline and weeks 4, 12, 24, 36, 48 and at the end of treatment. Concentrations of eight angiogenic biomarkers associated with tumour growth were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS: Peak and trough concentrations of everolimus in blood remained stable over time and similar to those reported in other indications. Substantial pharmacodynamic effects were observed in the everolimus, but not placebo, arm for three biomarkers: After 24 weeks of treatment, reduction of vascular endothelial growth factor D (VEGF-D) and collagen type IV (COL-IV) (mean fold-changes with 95% confidence intervals [CI] were 0.36 [0.33, 0.40], and 0.54 [0.51, 0.57], respectively, P < 0.001 for both), along with increased VEGF-A (mean fold-change of 1.59 [1.39, 1.80], P < 0.001), were seen. Furthermore, baseline VEGF-D and COL-IV levels were associated with angiomyolipoma size at baseline and with angiomyolipoma response to everolimus. CONCLUSIONS: These findings suggest that plasma angiogenic markers may provide an objective measure of patient response to everolimus.


Subject(s)
Angiomyolipoma/drug therapy , Antineoplastic Agents/pharmacology , Everolimus/pharmacology , Kidney Neoplasms/drug therapy , Lymphangioleiomyomatosis/drug therapy , Tuberous Sclerosis/drug therapy , Adult , Angiomyolipoma/complications , Antineoplastic Agents/pharmacokinetics , Antineoplastic Agents/therapeutic use , Collagen Type IV/blood , Dose-Response Relationship, Drug , Double-Blind Method , Enzyme-Linked Immunosorbent Assay , Everolimus/pharmacokinetics , Everolimus/therapeutic use , Humans , Kidney Neoplasms/complications , Lymphangioleiomyomatosis/complications , Tuberous Sclerosis/complications , Vascular Endothelial Growth Factor A/blood , Vascular Endothelial Growth Factor D/blood
18.
BMC Pregnancy Childbirth ; 16: 11, 2016 Jan 19.
Article in English | MEDLINE | ID: mdl-26791790

ABSTRACT

BACKGROUND: The Global Roadmap for Health Measurement and Accountability sees integrated systems for health information as key to obtaining seamless, sustainable, and secure information exchanges at all levels of health systems. The Global Strategy for Women's, Children's and Adolescent's Health aims to achieve a continuum of quality of care with effective coverage of interventions. The WHO and World Bank recommend that countries focus on intervention coverage to monitor programs and progress for universal health coverage. Electronic health registries - eRegistries - represent integrated systems that secure a triple return on investments: First, effective single data collection for health workers to seamlessly follow individuals along the continuum of care and across disconnected cadres of care providers. Second, real-time public health surveillance and monitoring of intervention coverage, and third, feedback of information to individuals, care providers and the public for transparent accountability. This series on eRegistries presents frameworks and tools to facilitate the development and secure operation of eRegistries for maternal and child health. METHODS: In this first paper of the eRegistries Series we have used WHO frameworks and taxonomy to map how eRegistries can support commonly used electronic and mobile applications to alleviate health systems constraints in maternal and child health. A web-based survey of public health officials in 64 low- and middle-income countries, and a systematic search of literature from 2005-2015, aimed to assess country capacities by the current status, quality and use of data in reproductive health registries. RESULTS: eRegistries can offer support for the 12 most commonly used electronic and mobile applications for health. Countries are implementing health registries in various forms, the majority in transition from paper-based data collection to electronic systems, but very few have eRegistries that can act as an integrating backbone for health information. More mature country capacity reflected by published health registry based research is emerging in settings reaching regional or national scale, increasingly with electronic solutions. 66 scientific publications were identified based on 32 registry systems in 23 countries over a period of 10 years; this reflects a challenging experience and capacity gap for delivering sustainable high quality registries. CONCLUSIONS: Registries are being developed and used in many high burden countries, but their potential benefits are far from realized as few countries have fully transitioned from paper-based health information to integrated electronic backbone systems. Free tools and frameworks exist to facilitate progress in health information for women and children.


Subject(s)
Child Health , Electronic Health Records , Information Dissemination/methods , Maternal Health , Registries , Adult , Child , Continuity of Patient Care , Data Collection/methods , Developing Countries , Female , Humans , Male , Pregnancy
19.
Lancet Oncol ; 15(13): 1513-1520, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25456370

ABSTRACT

BACKGROUND: In the EXIST-1 trial, initiated on Aug 10, 2009, more than 35% of patients with subependymal giant cell astrocytoma (SEGA) associated with tuberous sclerosis complex had at least 50% reduction in SEGA volume after 9·6 months of treatment with everolimus. In this Article, we report interim data (up to Jan 11, 2013) to support longer-term tolerability and efficacy of everolimus from the continuing 4-year extension phase of EXIST-1. METHODS: We assessed data from a prospective, open-label extension of a multicentre, phase 3, randomised, double-blind, placebo-controlled study in patients with tuberous sclerosis complex who had SEGA that was growing and needed treatment. In this extension study, we included all patients who had been assigned everolimus during the double-blind, randomised phase of the trial and those patients who crossed over from the placebo group to receive everolimus during the randomised phase or at the start of the extension phase. All patients received oral everolimus at a starting dose of 4·5 mg/m(2) per day. Everolimus dose was subsequently adjusted subject to tolerability to attain blood trough concentrations of 5-15 ng/mL. An independent central radiology review team assessed SEGA response (at least a 50% reduction from baseline in total volume of all target SEGAs; the primary endpoint) by MRI at 12, 24, and 48 weeks, then every year thereafter in all patients who received at least one dose of everolimus. This study was registered with ClinicalTrials.gov, number NCT00789828. FINDINGS: Of the original 117 randomly assigned patients, 111 were given everolimus between Aug 20, 2009, and Jan 11, 2013 (date of data cutoff); we included these patients in our longer-term analysis. Median duration of everolimus exposure was 29·3 months (IQR 19·4-33·8). Median follow-up was 28·3 months (IQR 19·3-33·0). 54 (49%) patients had a response of 50% or greater reduction in SEGA volume (95% CI 39·0-58·3), and duration of response was between 2·1 and 31·1 months (median not reached). SEGA volume was reduced by 50% or more in 39 (37%) of 105 patients at 24 weeks, 48 (46%) of 104 patients at 48 weeks, 36 (47%) of 76 patients at 96 weeks, and 11 (38%) of 29 patients at 144 weeks. Stomatitis (48 [43%] patients) and mouth ulceration (33 [30%] patients) were the most frequent treatment-related adverse events; infections were the most commonly reported treatment-related serious adverse event, occurring in 15 (14%) patients. 35 (32%) patients reported treatment-related grade 3 or 4 adverse events, the most common of which were stomatitis (nine [8%]) and pneumonia (nine [8%]). 18 (16%) patients had treatment-related serious adverse events. Six (5%) patients withdrew because of adverse events. INTERPRETATION: These results support the longer-term use of everolimus in patients who have few treatment options and who need continued treatment for tuberous sclerosis complex and its varied manifestations. Reduction or stabilisation of tumour volume with everolimus will hopefully provide long-term clinical benefit in patients with SEGA. FUNDING: Novartis Pharmaceuticals.


Subject(s)
Astrocytoma/drug therapy , Immunosuppressive Agents/therapeutic use , Sirolimus/analogs & derivatives , Tuberous Sclerosis/drug therapy , Adult , Astrocytoma/complications , Astrocytoma/genetics , Double-Blind Method , Everolimus , Female , Follow-Up Studies , Humans , Male , Mutation/genetics , Prognosis , Prospective Studies , Sirolimus/therapeutic use , Tuberous Sclerosis/complications , Tuberous Sclerosis/genetics , Tuberous Sclerosis Complex 1 Protein , Tuberous Sclerosis Complex 2 Protein , Tumor Suppressor Proteins/genetics , Young Adult
20.
Lancet ; 381(9869): 817-24, 2013 Mar 09.
Article in English | MEDLINE | ID: mdl-23312829

ABSTRACT

BACKGROUND: Angiomyolipomas are slow-growing tumours associated with constitutive activation of mammalian target of rapamycin (mTOR), and are common in patients with tuberous sclerosis complex and sporadic lymphangioleiomyomatosis. The insidious growth of these tumours predisposes patients to serious complications including retroperitoneal haemorrhage and impaired renal function. Everolimus, a rapamycin derivative, inhibits the mTOR pathway by acting on the mTOR complex 1. We compared the angiomyolipoma response rate on everolimus with placebo in patients with tuberous sclerosis or sporadic lymphanioleiomyomatosis-associated angiomyolipomata. METHODS: In this double-blind, placebo-controlled, phase 3 trial, patients aged 18 years or older with at least one angiomyolipoma 3 cm or larger in its longest diameter (defined by radiological assessment) and a definite diagnosis of tuberous sclerosis or sporadic lymphangioleiomyomatosis were randomly assigned, in a 2:1 fashion with the use of an interactive web response system, to receive oral everolimus 10 mg per day or placebo. The primary efficacy endpoint was the proportion of patients with confirmed angiomyolipoma response of at least a 50% reduction in total volume of target angiomyolipomas relative to baseline. This study is registered with ClinicalTrials.gov number NCT00790400. RESULTS: 118 patients (median age 31·0 years; IQR 18·0­61·0) from 24 centres in 11 countries were randomly assigned to receive everolimus (n=79) or placebo (n=39). At the data cutoff, double-blind treatment was ongoing for 98 patients; two main reasons for discontination were disease progression (nine placebo patients) followed by adverse events (two everolimus patients; four placebo patients). The angiomyolipoma response rate was 42% (33 of 79 [95% CI 31­53%]) for everolimus and 0% (0 of 39 [0­9%]) for placebo (response rate difference 42% [24­58%]; one-sided Cochran-Mantel-Haenszel test p<0·0001). The most common adverse events in the everolimus and placebo groups were stomatitis (48% [38 of 79], 8% [3 of 39], respectively), nasopharyngitis (24% [19 of 79] and 31% [12 of 39]), and acne-like skin lesions (22% [17 of 79] and 5% [2 of 39]). INTERPRETATION: Everolimus reduced angiomyolipoma volume with an acceptable safety profile, suggesting it could be a potential treatment for angiomyolipomas associated with tuberous sclerosis. FUNDING: Novartis Pharmaceuticals.


Subject(s)
Angiomyolipoma/drug therapy , Antineoplastic Agents/therapeutic use , Sirolimus/analogs & derivatives , Adult , Angiomyolipoma/complications , Double-Blind Method , Everolimus , Female , Humans , Lymphangioleiomyomatosis/complications , Male , Prospective Studies , Sirolimus/therapeutic use , Tuberous Sclerosis/complications
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