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1.
Med Leg J ; 91(4): 175-179, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37063079

RESUMO

Traumatic brain injuries are consistently difficult to objectively measure. This creates significant challenges for medical and legal practitioners who each apply the Glasgow Coma Scale-based traumatic brain injury severity classifications of "mild", "moderate" and "severe". It can be difficult to medically define an often-subjective traumatic brain injury, where the law requires objective evidence of injuries. This descriptive review aims to elucidate the intended purpose of the Glasgow Coma Scale in traumatic brain injury assessment by doctors and attorneys. We highlight two different Glasgow Coma Scale uses, demonstrating a disconnect between the clinical traumatic brain injury adjectival classifications used in medicine and law. The Glasgow Coma Scale-based adjectival traumatic brain injury classifications create a diagnostic label which can affect a patient long after their initial medical assessment, representing a de facto diagnosis to the legal profession which may affect a patient's potential legal financial recovery.


Assuntos
Lesões Encefálicas Traumáticas , Humanos , Estados Unidos , Escala de Coma de Glasgow , Lesões Encefálicas Traumáticas/diagnóstico
2.
J Immigr Minor Health ; 19(6): 1330-1337, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-27480158

RESUMO

Breast cancer is the second deadliest cancer for women in the demographically unique mountainous west state of Nevada. This study aims to accurately characterize breast cancer survival among the diverse women of the flourishing Silver State. Nevada Central Cancer Registry data was linked with the National Death Index and the Social Security Administration Masterfile. Overall 5-year age-adjusted cause-specific survival, survival stratified by race/ethnicity, and stage-specific survival stratified by region of Nevada were calculated. Adjusted hazard ratios were computed with Cox proportional hazards regression. 11,111 cases of breast cancer were diagnosed from 2003 to 2010. Overall 5-year breast cancer survival in Nevada was 84.4 %, significantly lower than the US, at 89.2 %. Black and Filipina women had a higher risk of death than white women. Poor survival in the racially and ethnically diverse Las Vegas metropolitan area, with a large foreign-born population, drives Nevada's low overall survival. System-wide changes are recommended to reduce the racial/ethnic disparities seen for black and Filipina women and improve outcomes for all.


Assuntos
Neoplasias da Mama/etnologia , Etnicidade/estatística & dados numéricos , Grupos Raciais/estatística & dados numéricos , Características de Residência/estatística & dados numéricos , Adolescente , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Asiático/estatística & dados numéricos , Neoplasias da Mama/mortalidade , Feminino , Disparidades nos Níveis de Saúde , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Nevada/epidemiologia , Filipinas/etnologia , Modelos de Riscos Proporcionais , Fatores de Risco , Programa de SEER , Análise de Sobrevida , Estados Unidos , População Branca/estatística & dados numéricos , Adulto Jovem
3.
Psychopharmacology (Berl) ; 231(1): 167-79, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23949205

RESUMO

RATIONALE: Eighteen- to twenty-five-year-olds show the highest rates of alcohol use disorders (AUD) and heavy drinking, which may have critical neurocognitive implications. Regions subserving memory may be particularly susceptible to alcohol-related impairments. OBJECTIVE: We used blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) to examine the neural correlates of visual encoding and recognition among heavy-drinking college students. We predicted that heavy drinkers would show worse memory performance, increased frontal/parietal activation, and decreased hippocampal response during encoding. METHODS: Participants were 23 heavy drinkers and 33 demographically matched light drinkers, aged 18-20, characterized using quantity/frequency of drinking and AUD diagnosis. Participants performed a figural encoding and recognition task during fMRI. BOLD response during encoding was modeled based on whether each stimulus was subsequently recognized or forgotten (i.e., correct vs. incorrect encoding). RESULTS: There were no group differences in behavioral performance. Compared to light drinkers, heavy drinkers showed (1) greater BOLD response during correct encoding in the right hippocampus/medial temporal, right dorsolateral prefrontal, left inferior frontal, and bilateral posterior parietal cortices; (2) less left inferior frontal activation and greater bilateral precuneus deactivation during incorrect encoding; and (3) less bilateral insula response during correct recognition (clusters >10,233 µl, p < 0.05 whole brain). CONCLUSIONS: This is the first investigation of the neural substrates of figural memory among heavy-drinking older adolescents. Heavy drinkers demonstrated compensatory hyperactivation of memory-related areas during correct encoding, greater deactivation of default mode regions during incorrect encoding, and reduced recognition-related response. Results could suggest use of different encoding and recognition strategies among heavy drinkers.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Alcoolismo/psicologia , Memória/fisiologia , Desempenho Psicomotor/fisiologia , Adolescente , Mapeamento Encefálico , Interpretação Estatística de Dados , Feminino , Lobo Frontal/fisiologia , Hipocampo/fisiologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Oxigênio/sangue , Lobo Parietal/fisiologia , Tempo de Reação/efeitos dos fármacos , Reconhecimento Psicológico/fisiologia , Percepção Visual/fisiologia , Adulto Jovem
4.
Addiction ; 109(4): 585-95, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24304235

RESUMO

BACKGROUND AND AIMS: Young adults show the highest rates of escalating drinking, yet the neural risk mechanisms remain unclear. Heavy drinkers show variant functional magnetic resonance imaging (fMRI) blood oxygen level-dependent (BOLD) response to alcohol cues, which may presage increasing drinking. In this longitudinal study, we ascertained whether BOLD response to alcohol pictures predicted subsequent heavy drinking among college students. METHODS: Participants were 43 18-21-year-olds in the United States who underwent BOLD scanning and completed monthly substance use surveys over the following year. Participants were categorized according to baseline and follow-up drinking into 13 continuously moderate drinkers, 16 continuously heavy drinkers and 14 transitioners who drank moderately at baseline but heavily by follow-up. During fMRI scanning at baseline, participants viewed alcohol and matched non-alcohol beverage images. RESULTS: We observed group differences in alcohol cue-elicited BOLD response in bilateral caudate, orbitofrontal cortex, medial frontal cortex/anterior cingulate and left insula (clusters > 2619 ml, voxelwise F(2,40) > 3.23, P < 0.05, whole-brain corrected P < 0.05), where transitioners hyperactivated compared with moderate and heavy drinkers (all Tukey P < 0.05). Exploratory factor analysis revealed a single brain network differentiating those who subsequently increased drinking. Exploratory regressions showed that, compared with other risk factors (e.g., alcoholism family history, impulsivity), BOLD response best predicted escalating drinking amount and alcohol-related problems. CONCLUSIONS: Neural response to pictures of alcohol is substantially enhanced among United States college students who subsequently escalate drinking. Greater cue-reactivity is associated with larger increases in drinking and alcohol-related problems, regardless of other baseline factors. Thus, neural cue-reactivity could uniquely facilitate identifying individuals at greatest risk for future problematic drinking.


Assuntos
Consumo de Bebidas Alcoólicas/fisiopatologia , Alcoolismo/fisiopatologia , Consumo Excessivo de Bebidas Alcoólicas/fisiopatologia , Encéfalo/fisiopatologia , Sinais (Psicologia) , Estudantes , Universidades , Adolescente , Transtornos Relacionados ao Uso de Álcool/fisiopatologia , Bebidas Alcoólicas , Mapeamento Encefálico , Núcleo Caudado/fisiopatologia , Córtex Cerebral/fisiopatologia , Análise Fatorial , Feminino , Neuroimagem Funcional , Giro do Cíngulo/fisiopatologia , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Estimulação Luminosa , Córtex Pré-Frontal/fisiopatologia , Fatores de Risco , Adulto Jovem
5.
Alcohol Clin Exp Res ; 37 Suppl 1: E161-71, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23078363

RESUMO

BACKGROUND: Heavy drinkers show altered functional magnetic resonance imaging (fMRI) response to alcohol cues. Little is known about alcohol cue reactivity among college age drinkers, who show the greatest rates of alcohol use disorders. Family history of alcoholism (family history positive [FHP]) is a risk factor for problematic drinking, but the impact on alcohol cue reactivity is unclear. We investigated the influence of heavy drinking and family history of alcoholism on alcohol cue-related fMRI response among college students. METHODS: Participants were 19 family history negative (FHN) light drinkers, 11 FHP light drinkers, 25 FHN heavy drinkers, and 10 FHP heavy drinkers, aged 18 to 21. During fMRI scanning, participants viewed alcohol images, nonalcohol beverage images, and degraded control images, with each beverage image presented twice. We characterized blood oxygen level-dependent (BOLD) contrast for alcohol versus nonalcohol images and examined BOLD response to repeated alcohol images to understand exposure effects. RESULTS: Heavy drinkers exhibited greater BOLD response than light drinkers in posterior visual association regions, anterior cingulate, medial frontal cortex, hippocampus, amygdala, and dorsal striatum, and hyperactivation to repeated alcohol images in temporo-parietal, frontal, and insular regions (clusters > 8,127 µl, p < 0.05). FHP individuals showed increased activation to repeated alcohol images in temporo-parietal regions, fusiform, and hippocampus. There were no interactions between family history and drinking group. CONCLUSIONS: Our results parallel findings of hyperactivation to alcohol cues among heavy drinkers in regions subserving visual attention, memory, motivation, and habit. Heavy drinkers demonstrated heightened activation to repeated alcohol images, which could influence continued drinking. Family history of alcoholism was associated with greater response to repeated alcohol images in regions underlying visual attention, recognition, and encoding, which could suggest aspects of alcohol cue reactivity that are independent of personal drinking. Heavy drinking and family history of alcoholism may have differential impacts on neural circuitry involved in cue reactivity.


Assuntos
Alcoolismo/genética , Alcoolismo/psicologia , Sinais (Psicologia) , Rede Nervosa/metabolismo , Estudantes/psicologia , Universidades , Adolescente , Consumo de Bebidas Alcoólicas/genética , Consumo de Bebidas Alcoólicas/patologia , Consumo de Bebidas Alcoólicas/psicologia , Bebidas Alcoólicas , Alcoolismo/patologia , Encéfalo/metabolismo , Encéfalo/patologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Estimulação Luminosa/métodos , Desempenho Psicomotor/fisiologia , Adulto Jovem
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