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1.
Am J Public Health ; 114(1): 34-37, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37856730

RESUMO

We sought to deliver a geotargeted digital health advertising intervention. We assessed risk of community infection through an integrated public health and wastewater rubric and delivered advertisements between November 2021 and April 2022 in Louisville, Kentucky. The average daily click-through rates for the campaigns were 0.19%, 0.15%, and 0.13%. Results show potential for digital public health interventions that are geographically anchored to subcity sewersheds and community interest and willingness to engage with targeted wastewater-themed public health messaging. (Am J Public Health. 2024;114(1):34-37. https://doi.org/10.2105/AJPH.2023.307439).


Assuntos
Publicidade , COVID-19 , Humanos , Kentucky/epidemiologia , Águas Residuárias , COVID-19/epidemiologia , Características de Residência
2.
Yale J Biol Med ; 97(2): 253-263, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38947109

RESUMO

Environmental mismatches are defined as changes in the environment that induce public health crises. Well known mismatches leading to chronic disease include the availability of technologies that facilitate unhealthy diets and sedentary lifestyles, both factors that adversely affect cardiovascular health. This commentary puts these mismatches in context with biota alteration, an environmental mismatch involving hygiene-related technologies necessary for avoidance of infectious disease. Implementation of hygiene-related technologies causes a loss of symbiotic helminths and protists, profoundly affecting immune function and facilitating a variety of chronic conditions, including allergic disorders, autoimmune diseases, and several inflammation-associated neuropsychiatric conditions. Unfortunately, despite an established understanding of the biology underpinning this and other environmental mismatches, public health agencies have failed to stem the resulting tide of increased chronic disease burden. Both biomedical research and clinical practice continue to focus on an ineffective and reactive pharmaceutical-based paradigm. It is argued that the healthcare of the future could take into account the biology of today, effectively and proactively dealing with environmental mismatch and the resulting chronic disease burden.


Assuntos
Doenças do Sistema Imunitário , Humanos , Doença Crônica , Animais , Meio Ambiente
3.
J Sex Med ; 20(6): 888-892, 2023 05 26.
Artigo em Inglês | MEDLINE | ID: mdl-37076135

RESUMO

BACKGROUND: While implantation of an inflatable penile prosthesis (IPP) is commonly performed via infrapubic or penoscrotal approaches, the subcoronal (SC) approach for IPP implantation may safely and reliably allow for additional reconstructive procedures through a single incision. AIM: The aim of this study is to report outcomes, including complications, of the SC approach and to determine common characteristics of patients undergoing the SC approach. METHODS: A retrospective chart review from May 11, 2012, to January 31, 2022, was performed at a single, tertiary care institution to identify patients with IPP implantation via the SC approach. OUTCOMES: Postoperative information was reviewed and extracted from all clinic notes available following the date of IPP implantation in the electronic medical record, detailing any complications including wound complications, need for revision or removal, device malfunction, and infections. RESULTS: Sixty-six patients had IPP implantation via the SC approach. Median follow-up duration was 29.4 (interquartile range 14.9-50.1) months. One (1.8%) patient had a simple wound complication. Two (3.6%) experienced postoperative infection of the prosthesis, which resulted in explantation of the device. One of these infected prostheses later experienced partial glans necrosis. Revision for mechanical failure or unsatisfactory cosmetic result was performed in 3 (7.3%) IPPs placed via a SC incision. CLINICAL IMPLICATIONS: The SC approach for implantation of IPP is safe and feasible with low complication and revision rates. It offers urologists an alternative to the classic infrapubic and penoscrotal approaches, both of which would require a second incision for additional reconstructive procedures required to adequately address deformities associated with severe Peyronie's disease. Therefore, urologists who treat these specialized populations of men may benefit from having the SC approach in their array of techniques for IPP implantation. STRENGTHS AND LIMITATIONS: The limitations of this study include its retrospective nature, risk of selection bias, lack of comparison groups, and sample size. This study reports on early experience with the SC approach performed by a single high-volume reconstructive surgeon, who treats a specialized population of patients requiring complex repair during implantation of an IPP, particularly those with Peyronie's disease. CONCLUSION: The SC incision for IPP implantation has low rates of complications and remains our approach of choice for IPP implantation in patients with severe Peyronie's disease, including curvatures >60°, severe indentation with hinge, and grade 3 calcification, which are unlikely to respond adequately to manual modeling alone.


Assuntos
Disfunção Erétil , Implante Peniano , Induração Peniana , Prótese de Pênis , Masculino , Humanos , Implante Peniano/métodos , Induração Peniana/cirurgia , Prótese de Pênis/efeitos adversos , Estudos Retrospectivos , Satisfação do Paciente , Disfunção Erétil/etiologia
4.
BMC Womens Health ; 23(1): 674, 2023 12 19.
Artigo em Inglês | MEDLINE | ID: mdl-38114962

RESUMO

BACKGROUND: Hysterectomy is a common surgery among reproductive-aged U.S. patients, with rates highest among Black patients in the South. There is limited insight on causes of these racial differences. In the U.S., electronic medical records (EMR) data can offer richer detail on factors driving surgical decision-making among reproductive-aged populations than insurance claims-based data. Our objective in this cohort profile paper is to describe the Carolina Hysterectomy Cohort (CHC), a large EMR-based case-series of premenopausal hysterectomy patients in the U.S. South, supplemented with census and surgeon licensing data. To demonstrate one strength of the data, we evaluate whether patient and surgeon characteristics differ by insurance payor type. METHODS: We used structured and abstracted EMR data to identify and characterize patients aged 18-44 years who received hysterectomies for non-cancerous conditions between 10/02/2014-12/31/2017 in a large health care system comprised of 10 hospitals in North Carolina. We used Chi-squared and Kruskal Wallis tests to compare whether patients' socio-demographic and relevant clinical characteristics, and surgeon characteristics differed by patient insurance payor (public, private, uninsured). RESULTS: Of 1857 patients (including 55% non-Hispanic White, 30% non-Hispanic Black, 9% Hispanic), 75% were privately-insured, 17% were publicly-insured, and 7% were uninsured. Menorrhagia was more prevalent among the publicly-insured (74% vs 68% overall). Fibroids were more prevalent among the privately-insured (62%) and the uninsured (68%). Most privately insured patients were treated at non-academic hospitals (65%) whereas most publicly insured and uninsured patients were treated at academic centers (66 and 86%, respectively). Publicly insured and uninsured patients had higher median bleeding (public: 7.0, uninsured: 9.0, private: 5.0) and pain (public: 6.0, uninsured: 6.0, private: 3.0) symptom scores than the privately insured. There were no statistical differences in surgeon characteristics by payor groups. CONCLUSION: This novel study design, a large EMR-based case series of hysterectomies linked to physician licensing data and manually abstracted data from unstructured clinical notes, enabled identification and characterization of a diverse reproductive-aged patient population more comprehensively than claims data would allow. In subsequent phases of this research, the CHC will leverage these rich clinical data to investigate multilevel drivers of hysterectomy in an ethnoracially, economically, and clinically diverse series of hysterectomy patients.


Assuntos
Cobertura do Seguro , Cirurgiões , Feminino , Humanos , Estados Unidos , Adulto , Pessoas sem Cobertura de Seguro de Saúde , Hospitais , Histerectomia , Seguro Saúde
5.
BMC Cardiovasc Disord ; 22(1): 506, 2022 11 26.
Artigo em Inglês | MEDLINE | ID: mdl-36435762

RESUMO

BACKGROUND: Studies have shown that quantitative evaluation of coronary artery plaque on Coronary Computed Tomography Angiography (CCTA) can identify patients at risk of cardiac events. Recent demonstration of artificial intelligence (AI) assisted CCTA shows that it allows for evaluation of CAD and plaque characteristics. Based on publications to date, we are the first group to perform AI augmented CCTA serial analysis of changes in coronary plaque characteristics over 13 years. We evaluated whether AI assisted CCTA can accurately assess changes in coronary plaque progression, which has potential clinical prognostic value in CAD management. CASE PRESENTATION: 51-year-old male with hypertension, hyperlipidemia and family history of myocardial infarction, underwent CCTA exams for anginal symptom evaluation and CAD assessment. 5 CCTAs were performed between 2008 and 2021. Quantitative atherosclerosis plaque characterization (APC) using an AI platform (Cleerly), was performed to assess CAD burden. Total plaque volume (TPV) change-over-time demonstrated decreasing low-density non-calcified plaque (LD-NCP) with increasing overall NCP and calcified-plaque (CP). Examination of individual segments revealed a proximal-LAD lesion with decreasing NCP over-time and increasing CP. In contrast, although the D2/D1/ramus lesions showed increasing stenosis, CP, and total plaque, there were no significant differences in NCP over-time, with stable NCP and increased CP. Remarkably, we also consistently visualized small plaques, which typically readers may interpret as false positives due to artifacts. But in this case, they reappeared each study in the same locations, generally progressing in size and demonstrating expected plaque transformation over-time. CONCLUSIONS: We performed the first AI augmented CCTA based serial analysis of changes in coronary plaque characteristics over 13 years. We were able to consistently assess progression of plaque volumes, stenosis, and APCs with this novel methodology. We found a significant increase in TPV composed of decreasing LD-NCP, and increasing NCP and CP, with variations in the evolution of APCs between vessels. Although the significance of evolving APCs needs to be investigated, this case demonstrates AI-based CCTA analysis can serve as valuable clinical tool to accurately define unique CAD characteristics over time. Prospective trails are needed to assess whether quantification of APCs provides prognostic capabilities to improve clinical care.


Assuntos
Doença da Artéria Coronariana , Placa Aterosclerótica , Masculino , Humanos , Pessoa de Meia-Idade , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia , Angiografia por Tomografia Computadorizada , Angiografia Coronária/métodos , Inteligência Artificial , Estudos Prospectivos , Constrição Patológica
6.
Eur J Pediatr ; 181(5): 1835-1857, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35175416

RESUMO

Although widely believed by pediatricians and parents to be safe for use in infants and children when used as directed, increasing evidence indicates that early life exposure to paracetamol (acetaminophen) may cause long-term neurodevelopmental problems. Furthermore, recent studies in animal models demonstrate that cognitive development is exquisitely sensitive to paracetamol exposure during early development. In this study, evidence for the claim that paracetamol is safe was evaluated using a systematic literature search. Publications on PubMed between 1974 and 2017 that contained the keywords "infant" and either "paracetamol" or "acetaminophen" were considered. Of those initial 3096 papers, 218 were identified that made claims that paracetamol was safe for use with infants or children. From these 218, a total of 103 papers were identified as sources of authority for the safety claim.   Conclusion: A total of 52 papers contained actual experiments designed to test safety, and had a median follow-up time of 48 h. None monitored neurodevelopment. Furthermore, no trial considered total exposure to drug since birth, eliminating the possibility that the effects of drug exposure on long-term neurodevelopment could be accurately assessed. On the other hand, abundant and sufficient evidence was found to conclude that paracetamol does not induce acute liver damage in babies or children when used as directed. What is Known: • Paracetamol (acetaminophen) is widely thought by pediatricians and parents to be safe when used as directed in the pediatric population, and is the most widely used drug in that population, with more than 90% of children exposed to the drug in some reports. • Paracetamol is known to cause liver damage in adults under conditions of oxidative stress or when used in excess, but increasing evidence from studies in humans and in laboratory animals indicates that the target organ for paracetamol toxicity during early development is the brain, not the liver. What is New: • This study finds hundreds of published reports in the medical literature asserting that paracetamol is safe when used as directed, providing a foundation for the widespread belief that the drug is safe. • This study shows that paracetamol was proven to be safe by approximately 50 short-term studies demonstrating the drug's safety for the pediatric liver, but the drug was never shown to be safe for neurodevelopment. Paracetamol is widely believed to be safe for infants and children when used as directed, despite mounting evidence in humans and in laboratory animals indicating that the drug is not safe for neurodevelopment. An exhaustive search of published work cited for safe use of paracetamol in the pediatric population revealed 52 experimental studies pointing toward safety, but the median follow-up time was only 48 h, and neurodevelopment was never assessed.


Assuntos
Acetaminofen , Analgésicos não Narcóticos , Acetaminofen/efeitos adversos , Analgésicos não Narcóticos/efeitos adversos , Criança , Humanos
7.
BMC Health Serv Res ; 22(1): 1465, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36457094

RESUMO

INTRODUCTION: A task-sharing collaborative care model for integrated depression care for South Africa's burgeoning primary health care population with chronic conditions was developed and tested through two pragmatic cluster randomized controlled trials. One trial focused on patients with hypertension and was located in one district where a collaborative care model was co-designed with district stakeholders. The other trial, focused on patients on antiretroviral treatment, was located in the same district site, with the addition of a second neighbouring district, without adaptation of the original model. This paper describes the package used to implement this model, and implementation outcomes across the two sites, and summarises lessons and challenges. METHODS: The Template for Intervention Description and Replication (TIDieR) framework, adapted for complex health systems interventions, was used to describe components of the package. Additional elements of 'modifications made' and 'actual implementation' introduced in the 'Getting messier with TIDieR' framework, were used to describe implementation outcomes in terms of reach, adoption and implementation across the two trial districts. RESULTS: In the absence of a co-design process to adapt the model to the context of the second site, there was less system level support for the model. Consequently, more project employed human resources were deployed to support training of primary care nurses in identification and referral of patients with depression; and supervise co-located lay counsellors. Referrals to co-located lay counselling services were more than double in the second site. However, uptake of counselling sessions was greater in the first site. This was attributed to greater in-vivo supervision and support from existing mental health specialists in the system. There was greater reliance on online supervision and support in the second site where geographical distances between clinics were larger. CONCLUSION: The need for in-country co-designed collaborative care models, and 'implementation heavy' implementation research to understand adaptations required to accommodate varying in-country health system contexts is highlighted.


Assuntos
Depressão , Exame Físico , Humanos , África do Sul/epidemiologia , Depressão/epidemiologia , Depressão/terapia , Comorbidade , Doença Crônica
8.
J Neurosci ; 40(8): 1744-1755, 2020 02 19.
Artigo em Inglês | MEDLINE | ID: mdl-31953368

RESUMO

Cognitive processes contribute to the control of feeding behavior and help organism's survival when they support physiological needs. They can become maladaptive, such as when learned food cues drive feeding in the absence of hunger. Associative learning is the basis for cue-driven food seeking and consumption, and behavioral paradigms with Pavlovian cue-food conditioning are well established. Yet, the neural mechanisms underlying circuit plasticity across cue-food learning, cue memory recall, and subsequent food motivation are unknown. Here, we demonstrated the medial prefrontal cortex (mPFC) is a site of learning-induced plasticity and signaling of the neuropeptide orexin within the mPFC mediates cue potentiated feeding (CPF). First, using a marker of neuronal activation, c-fos, we confirmed that the mPFC is activated during CPF. Next, to assess whether the same mPFC neuronal ensemble is activated during cue-food learning and later CPF, we used the Daun02 chemogenetic inactivation method in c-fos-lacZ transgenic male and female rats. Selective inactivation of the mPFC neurons that were active during the last cue-food training session abolished CPF during test, demonstrating that the mPFC is a site of plasticity. We postulated that integration of food cue memory and feeding motivation requires mPFC communications with lateral hypothalamus and showed that disconnection of that system abolished CPF. Then we showed that lateral hypothalamus orexin-producing neurons project to the mPFC. Finally, we blocked orexin receptor 1 signaling in the mPFC and showed that it is a neuromodulator necessary for the cue-driven consumption. Together, our findings identify a causal function for the mPFC in the cognitive motivation to eat.SIGNIFICANCE STATEMENT Obesity has reached epidemic proportions, and the associated health consequences are serious and costly. The causes of obesity are complex because, in addition to physiological energy and nutrient needs, environmental cues can drive feeding through hedonic and cognitive processes. Learned food cues from the environment can powerfully stimulate appetite and food consumption in the absence of hunger. Using an animal model for cue-potentiated feeding, the current study determined the mPFC neuronal plasticity and neuropeptide orexin signaling are critical circuit and neurotransmitter mechanisms involved in this form of cognitive motivation to eat. These findings identify key targets for potential treatment of excessive appetite and overeating.


Assuntos
Comportamento Alimentar/fisiologia , Região Hipotalâmica Lateral/fisiologia , Plasticidade Neuronal/fisiologia , Neurônios/fisiologia , Receptores de Orexina/metabolismo , Córtex Pré-Frontal/fisiologia , Transdução de Sinais/fisiologia , Animais , Sinais (Psicologia) , Feminino , Região Hipotalâmica Lateral/metabolismo , Aprendizagem/fisiologia , Masculino , Vias Neurais/fisiologia , Córtex Pré-Frontal/metabolismo , Ratos
9.
Biophys J ; 116(6): 1025-1036, 2019 03 19.
Artigo em Inglês | MEDLINE | ID: mdl-30795874

RESUMO

Synaptotagmin-1 (Syt-1) and synaptotagmin-7 (Syt-7) contain analogous tandem C2 domains, C2A and C2B, which together sense Ca2+ to bind membranes and promote the stabilization of exocytotic fusion pores. Syt-1 triggers fast release of neurotransmitters, whereas Syt-7 functions in processes that involve lower Ca2+ concentrations such as hormone secretion. Syt-1 C2 domains are reported to bind membranes cooperatively, based on the observation that they penetrate farther into membranes as the C2AB tandem than as individual C2 domains. In contrast, we previously suggested that the two C2 domains of Syt-7 bind membranes independently, based in part on measurements of their liposome dissociation kinetics. Here, we investigated C2A-C2B interdomain cooperativity with Syt-1 and Syt-7 using directly comparable measurements. Equilibrium Ca2+ titrations demonstrate that the Syt-7 C2AB tandem binds liposomes lacking phosphatidylinositol-4,5-bisphosphate (PIP2) with greater Ca2+ sensitivity than either of its individual domains and binds to membranes containing PIP2 even in the absence of Ca2+. Stopped-flow kinetic measurements show differences in cooperativity between Syt-1 and Syt-7: Syt-1 C2AB dissociates from PIP2-free liposomes much more slowly than either of its individual C2 domains, indicating cooperativity, whereas the major population of Syt-7 C2AB has a dissociation rate comparable to its C2A domain, suggesting a lack of cooperativity. A minor subpopulation of Syt-7 C2AB dissociates at a slower rate, which could be due to a small cooperative component and/or liposome clustering. Measurements using an environment-sensitive fluorescent probe indicate that the Syt-7 C2B domain inserts deeply into membranes as part of the C2AB tandem, similar to the coinsertion previously reported for Syt-1. Overall, coinsertion of C2A and C2B domains is coupled to cooperative energetic effects in Syt-1 to a much greater extent than in Syt-7. The difference can be understood in terms of the relative contributions of C2A and C2B domains toward membrane binding in the two proteins.


Assuntos
Membrana Celular/metabolismo , Sinaptotagmina I/química , Sinaptotagmina I/metabolismo , Sinaptotagminas/química , Sinaptotagminas/metabolismo , Cálcio/metabolismo , Humanos , Cinética , Lipossomos/metabolismo , Ligação Proteica , Domínios Proteicos
10.
Depress Anxiety ; 36(6): 511-521, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30694009

RESUMO

BACKGROUND: Prior investigations have found negative associations between military unit cohesion and posttraumatic stress disorder (PTSD); however, most relied on cross-sectional data and few examined relationships of unit cohesion to other mental disorders. This study evaluates prospective associations of perceived unit cohesion with a range of mental health outcomes following combat deployment. METHODS: U.S. Army soldiers were surveyed approximately 1-2 months before deployment to Afghanistan (T0); and 1 month (T1), 3 months (T2), and 9 months (T3) after return from deployment. Logistic regression was performed to estimate associations of perceived unit cohesion at T0 with risk of PTSD, major depressive episode (MDE), generalized anxiety disorder (GAD), alcohol or substance use disorder (AUD/SUD), and suicidal ideation at T2 or T3 among soldiers who completed all study assessments (N = 4,645). Models were adjusted for sociodemographic and Army service characteristics, predeployment history of the index outcome, and deployment stress exposure. RESULTS: Higher perceived unit cohesion at T0 was associated with lower risk of PTSD, MDE, GAD, AUD/SUD, and suicidal ideation at T2 or T3 (AORs = 0.72 to 0.85 per standard score increase in unit cohesion; P-values < 0.05). Models of incidence of mental disorders and suicidal ideation among soldiers without these problems predeployment yielded similar results, except that perceived unit cohesion was not associated with incident AUD/SUD. CONCLUSIONS: Soldiers who reported strong unit cohesion before deployment had lower risk of postdeployment mental disorders and suicidal ideation. Awareness of associations of perceived unit cohesion with postdeployment mental health may facilitate targeting of prevention programs.


Assuntos
Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Saúde Mental , Militares/psicologia , Adulto , Campanha Afegã de 2001- , Alcoolismo/epidemiologia , Alcoolismo/psicologia , Transtornos de Ansiedade/epidemiologia , Transtornos de Ansiedade/psicologia , Estudos Transversais , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/psicologia , Feminino , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Masculino , Estudos Prospectivos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Ideação Suicida
11.
Neurobiol Learn Mem ; 150: 25-35, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29496643

RESUMO

Persistent responding to food cues may underlie the difficulty to resist palatable foods and to maintain healthy eating habits. Renewal of responding after extinction is a model of persistent food seeking that can be used to study the underlying neural mechanisms. In context-mediated renewal, a return to the context in which the initial cue-food learning occurred induces robust responding to the cues that were extinguished elsewhere. Previous work found sex differences in context-mediated renewal and in the recruitment of the ventromedial prefrontal cortex (vmPFC) during that behavior. Males exhibited renewal of responding to food cues and had higher Fos induction in the prelimbic area (PL) of the vmPFC, while females failed to exhibit renewal of responding and had lower Fos induction in the PL. The main aim of the current study was to determine key components of the PL circuitry mediating renewal. The focus was on inputs from three areas important in appetitive associative learning and contextual processing: the amygdala, ventral hippocampal formation, and the paraventricular nucleus of the thalamus. The goal was to determine whether neurons from these areas that send direct projections to the PL (identified with a retrograde tracer) are selectively activated (Fos induction) during renewal and whether they are differently recruited in males and females. The Fos induction patterns demonstrated that the PL-projecting neurons in each of these areas were recruited in a sex-specific way that corresponded to the behavioral differences between males and females. These pathways were selectively activated in the male experimental group-the only group that showed renewal behavior. The findings suggest the pathways from the ventral hippocampal formation, paraventricular nucleus of the thalamus, and basolateral amygdala to the PL mediate renewal in males. The lack of recruitment in females suggests that under activation of these pathways may underlie their lack of renewal.


Assuntos
Tonsila do Cerebelo/fisiologia , Condicionamento Clássico/fisiologia , Hipocampo/fisiologia , Neurônios/fisiologia , Córtex Pré-Frontal/fisiologia , Tálamo/fisiologia , Animais , Sinais (Psicologia) , Extinção Psicológica/fisiologia , Feminino , Alimentos , Masculino , Ratos , Ratos Long-Evans , Caracteres Sexuais
12.
Australas Psychiatry ; 26(1): 11-12, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28836813

RESUMO

OBJECTIVES: The differential diagnosis of psychotic symptoms is broad and extends beyond primary psychotic and affective disorders. We aim to illustrate that the chronology and phenomenological nature of hallucinatory symptoms may provide clues towards alternative diagnoses, such as hallucinogen persisting perceptual disorder (HPPD). We describe the resurgence of visual pseudo-hallucinations in a young woman in the context of previous substance-induced hallucinatory symptoms and a prior diagnosis of occipital lobe epilepsy. She presented a diagnostic challenge, saw several emergency and specialist doctors and attracted stigmatising diagnoses leading to anxiety and depressive symptoms. Her symptoms were finally recognised as HPPD, and she was treated appropriately with lamotrigine. CONCLUSIONS: Patients with perceptual disturbance can present in various clinical settings, and HPPD is an under-recognised diagnostic possibility. Delayed or misdiagnosis prolongs profound functional impairment and social decline, and predisposes the patient to the development of anxiety and depression and related increased risk of suicide.


Assuntos
Alucinações/diagnóstico , Alucinógenos/efeitos adversos , Transtornos da Percepção/diagnóstico , Adulto , Feminino , Humanos
13.
Neurobiol Learn Mem ; 139: 11-21, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27940080

RESUMO

Renewal, or reinstatement, of responding to food cues after extinction may explain the inability to resist palatable foods and change maladaptive eating habits. Previously, we found sex differences in context-dependent renewal of extinguished Pavlovian conditioned responding to food cues. Context-induced renewal involves cue-food conditioning and extinction in different contexts and the renewal of conditioned behavior is induced by return to the conditioning context (ABA renewal). Male rats showed renewal of responding while females did not. In the current study we sought to identify recruitment of key neural systems underlying context-mediated renewal and sex differences. We examined Fos induction within the ventromedial prefrontal cortex (vmPFC), hippocampal formation, thalamus and amygdala in male and female rats during the test for renewal. We found sex differences in vmPFC recruitment during renewal. Male rats in the experimental condition showed renewal of responding and had more Fos induction within the infralimbic and prelimbic vmPFC areas compared to controls that remained in the same context throughout training and testing. Females in the experimental condition did not show renewal or an increase in Fos induction. Additionally, Fos expression differed between experimental and control groups and between the sexes in the hippocampal formation, thalamus and amygdala. Within the ventral subiculum, the experimental groups of both sexes had more Fos compared to control groups. Within the dorsal CA1 and the anterior region of the paraventricular nucleus of the thalamus, in males, the experimental group had higher Fos induction, while both females groups had similar number of Fos-positive neurons. Within the capsular part of the central amygdalar nucleus, females in the experimental group had higher Fos induction, while males groups had similar amounts. The differential recruitment corresponded to the behavioral differences between males and females and suggests the medial prefrontal cortex-hippocampal-thalamic system is a critical site of sex differences during renewal of appetitive Pavlovian responding to food cues. These findings provide evidence for novel neural mechanisms underlying sex differences in food motivation and contextual processing in associative learning and memory. The results should also inform future molecular and translational work investigating sex differences and maladaptive eating habits.


Assuntos
Condicionamento Operante/fisiologia , Hipocampo/metabolismo , Córtex Pré-Frontal/metabolismo , Proteínas Proto-Oncogênicas c-fos/metabolismo , Caracteres Sexuais , Tálamo/metabolismo , Animais , Comportamento Animal/fisiologia , Sinais (Psicologia) , Feminino , Alimentos , Masculino , Vias Neurais/metabolismo , Ratos , Ratos Long-Evans
14.
BMC Musculoskelet Disord ; 18(1): 369, 2017 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-28841866

RESUMO

BACKGROUND: Low back pain (LBP) affects more than one third of the population at any given time, and chronic LBP is responsible for increased medical costs, functional limitations and decreased quality of life. A clear etiology is often difficult to identify, but aberrant posture and movement are considered contributing factors to chronic LBP that are addressed during physiotherapy intervention. Information about aberrant movement during functional activities in people with LBP can help inform more effective interventions. The purpose of this study was to determine if there are differences in lumbar spine and lower extremity kinematics in people with and without LBP during a step-up task. METHODS: A convenience sample of 37 participants included 19 with LBP and 18 without a history of LBP. All participants were between the ages of 18 and 65, and controls were matched to participants with LBP based on age, gender and BMI. A motion capture system was used to record spine and lower extremity kinematics during the step-up task. ANOVA tests were used to determine differences in three-dimensional kinematics between groups. RESULTS: Participants with LBP displayed less lower lumbar motion in the sagittal plane (P = 0.001), more knee motion in the coronal plane (P = 0.001), and more lower extremity motion in the axial plane (P = 0.002) than controls. CONCLUSIONS: People with LBP display less lower lumbar spine motion in the sagittal plane and more out-of-plane lower extremity motion. Clinically, the step-up task can be used to identify these aberrant movements to develop more focused functional interventions for patients with LBP. TRIAL REGISTRATION: Not applicable.


Assuntos
Dor Lombar/diagnóstico , Dor Lombar/fisiopatologia , Extremidade Inferior/fisiopatologia , Vértebras Lombares/fisiopatologia , Movimento/fisiologia , Adolescente , Adulto , Fenômenos Biomecânicos/fisiologia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular/fisiologia , Adulto Jovem
16.
Telemed J E Health ; 22(7): 590-8, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26886406

RESUMO

BACKGROUND: Delivering specialty care remotely directly into people's homes can enhance access for and improve the healthcare of individuals with chronic conditions. However, evidence supporting this approach is limited. MATERIALS AND METHODS: Connect.Parkinson is a randomized comparative effectiveness study that compares usual care of individuals with Parkinson's disease in the community with usual care augmented by virtual house calls with a Parkinson's disease specialist from 1 of 18 centers nationally. Individuals in the intervention arm receive four virtual visits from a Parkinson's disease specialist over 1 year via secure, Web-based videoconferencing directly into their homes. All study activities, including recruitment, enrollment, and assessments, are conducted remotely. Here we report on interest, feasibility, and barriers to enrollment in this ongoing study. RESULTS: During recruitment, 11,734 individuals visited the study's Web site, and 927 unique individuals submitted electronic interest forms. Two hundred ten individuals from 18 states enrolled in the study from March 2014 to June 2015, and 195 were randomized. Most participants were white (96%) and college educated (73%). Of the randomized participants, 73% had seen a Parkinson's disease specialist within the previous year. CONCLUSIONS: Among individuals with Parkinson's disease, national interest in receiving remote specialty care directly into the home is high. Remote enrollment in this care model is feasible but is likely affected by differential access to the Internet.


Assuntos
Visita Domiciliar , Doença de Parkinson/terapia , Consulta Remota/organização & administração , Comunicação por Videoconferência , Estudos de Viabilidade , Humanos , Internet , Projetos de Pesquisa , Fatores Socioeconômicos
17.
MMWR Morb Mortal Wkly Rep ; 63(4): 77-80, 2014 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-24476979

RESUMO

Over the past decade, Vietnam has successfully responded to global health security (GHS) challenges, including domestic elimination of severe acute respiratory syndrome (SARS) and rapid public health responses to human infections with influenza A(H5N1) virus. However, new threats such as Middle East respiratory syndrome coronavirus (MERS-CoV) and influenza A(H7N9) present continued challenges, reinforcing the need to improve the global capacity to prevent, detect, and respond to public health threats. In June 2012, Vietnam, along with many other nations, obtained a 2-year extension for meeting core surveillance and response requirements of the 2005 International Health Regulations (IHR). During March-September 2013, CDC and the Vietnamese Ministry of Health (MoH) collaborated on a GHS demonstration project to improve public health emergency detection and response capacity. The project aimed to demonstrate, in a short period, that enhancements to Vietnam's health system in surveillance and early detection of and response to diseases and outbreaks could contribute to meeting the IHR core capacities, consistent with the Asia Pacific Strategy for Emerging Diseases. Work focused on enhancements to three interrelated priority areas and included achievements in 1) establishing an emergency operations center (EOC) at the General Department of Preventive Medicine with training of personnel for public health emergency management; 2) improving the nationwide laboratory system, including enhanced testing capability for several priority pathogens (i.e., those in Vietnam most likely to contribute to public health emergencies of international concern); and 3) creating an emergency response information systems platform, including a demonstration of real-time reporting capability. Lessons learned included awareness that integrated functions within the health system for GHS require careful planning, stakeholder buy-in, and intradepartmental and interdepartmental coordination and communication.


Assuntos
Fortalecimento Institucional/organização & administração , Surtos de Doenças/prevenção & controle , Saúde Global , Cooperação Internacional , Vigilância da População , Centers for Disease Control and Prevention, U.S. , Humanos , Estados Unidos , Vietnã , Organização Mundial da Saúde
20.
Alzheimers Dement ; 10(5): 541-51, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24439168

RESUMO

BACKGROUND: We investigated the genomic region spanning the Translocase of the Outer Mitochondrial Membrane 40-kD (TOMM40) and Apolipoprotein E (APOE) genes, that has been associated with the risk and age of onset of late-onset Alzheimer's disease (LOAD) to determine whether a highly polymorphic, intronic poly-T within this region (rs10524523; hereafter, 523) affects expression of the APOE and TOMM40 genes. Alleles of this locus are classified as S, short; L, long; and VL, very long based on the number of T residues. METHODS: We evaluated differences in APOE messenger RNA (mRNA) and TOMM40 mRNA levels as a function of the 523 genotype in two brain regions from APOE ε3/ε3 white autopsy-confirmed LOAD cases and normal controls. We further investigated the effect of the 523 locus in its native genomic context using a luciferase expression system. RESULTS: The expression of both genes was significantly increased with disease. Mean expression of APOE and TOMM40 mRNA levels were higher in VL homozygotes compared with S homozygotes in the temporal and occipital cortexes from normal and LOAD cases. Results of a luciferase reporter system were consistent with the human brain mRNA analysis; the 523 VL poly-T resulted in significantly higher expression than the S poly-T. Although the effect of poly-T length on reporter expression was the same in HepG2 hepatoma and SH-SY5Y neuroblastoma cells, the magnitude of the effect was greater in the neuroblastoma than in the hepatoma cells, which implies tissue-specific modulation of the 523 poly-T. CONCLUSIONS: These results suggest that the 523 locus may contribute to LOAD susceptibility by modulating the expression of TOMM40 and/or APOE transcription.


Assuntos
Doença de Alzheimer/metabolismo , Apolipoproteínas E/genética , Regulação da Expressão Gênica , Proteínas de Membrana Transportadoras/genética , Lobo Occipital/metabolismo , Lobo Temporal/metabolismo , Idade de Início , Idoso , Doença de Alzheimer/genética , Apolipoproteínas E/metabolismo , Linhagem Celular Tumoral , Feminino , Predisposição Genética para Doença , Genótipo , Células Hep G2 , Humanos , Masculino , Proteínas de Membrana Transportadoras/metabolismo , Proteínas do Complexo de Importação de Proteína Precursora Mitocondrial , Polimorfismo Genético , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Transfecção
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