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1.
BMC Psychol ; 12(1): 240, 2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38678214

RESUMO

BACKGROUND: Emotion regulation, the process by which individuals manage and modify their emotional experiences, expressions, and responses to adaptively navigate and cope with various situations, plays a crucial role in daily life. Our study investigates the variations in emotion regulation strategies among individuals with different attachment styles (AS). Specifically, we examine how individuals with secure, anxious, avoidant, and fearful attachment styles effectively utilize cognitive reappraisal and expressive suppression to regulate their emotions. METHODS: A total of n = 98 adults were instructed to attend, reappraise, or suppress their emotions while viewing negative and neutral images from the International Affective Picture System (IAPS) in an experimental emotion regulation task. After completing the task, participants rated the valence and arousal elicited by the images. Attachment styles were measured using the ECR-12 questionnaire and then categorized into four AS. RESULTS: Our study revealed that individuals with secure AS (n = 39) effectively reduced displeasure through cognitive reappraisal but experienced levels of displeasure with expressive suppression. Anxious AS (n = 16) individuals successfully reduced displeasure using cognitive reappraisal but struggled to regulate arousal and effectively use expressive suppression. Avoidant AS (n = 24) individuals could reduce displeasure with both strategies but experienced high arousal during suppression attempts. Fearful AS (n = 19) individuals effectively regulated both displeasure and arousal using either strategy. However, Secure AS individuals showed superior reappraisal efficacy, significantly reducing arousal levels compared to the Fearful AS group. Both Secure and Avoidant AS groups experienced higher valence during reappraisal relative to a baseline, indicating a decrease in displeasure. CONCLUSIONS: Individuals with different AS exhibit variations in the effectiveness of their use of emotion regulation strategies. Our findings reinforce the significance of AS in shaping emotion regulation processes and emphasize the need for tailored approaches to support individuals with different attachment orientations.


Assuntos
Regulação Emocional , Apego ao Objeto , Humanos , Regulação Emocional/fisiologia , Masculino , Feminino , Adulto Jovem , Adulto , Ansiedade/psicologia , Emoções , Nível de Alerta/fisiologia
2.
Front Behav Neurosci ; 17: 1141607, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37484522

RESUMO

Introduction: Emotion Regulation plays a crucial role in human's daily lives. Extensive research has shown that people with different attachment orientations exhibit divergencies in how they perform emotion regulation strategies. Methods: 44 adults performed an experimental emotion regulation task in which they were instructed to attend, reappraise, or suppress their emotions while viewing negative and neutral images taken from the International Affective Picture System (IAPS). Afterward, participants rated valence, arousal, and emotional dominance elicited by the images. Additionally, attachment orientations were measured using the ECR-12 questionnaire. Results: Results showed a relationship between attachment avoidance and the level of arousal during the reappraisal condition; specifically, the higher attachment avoidance levels, the greater the emotional intensity during the implementation of cognitive reappraisal strategy. Such results suggest an association between failing in downregulate intense emotions using cognitive reappraisal when there are higher levels of attachment avoidance. Consistently, we also found that lower dominance during reappraisal was associated with more levels of avoidance. Conclusion: These results indicate that people with higher levels of attachment avoidance experience difficulties when using the cognitive reappraisal strategy to reduce the emotional impact produced by negative emotional stimuli. Our findings reinforce the idea that avoidant people experience high physiological activation when experience emotions.

3.
Foods ; 11(20)2022 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-37430924

RESUMO

In this research functional beverages based on the unprocessed and extruded sesame seeds byproduct were fabricated; phytochemical profile, antioxidant, antidiabetic, and hypoglycemic potential were evaluated. Twenty-four phytochemical compounds were identified in total in both beverages; fourteen of the phytochemical compounds were not modified by the extrusion process. Seventeen of the 24 compounds were identified in the unprocessed sesame seeds byproduct flour beverage-10% (UB10) and 21 in the extruded sesame seeds byproduct flour beverage-10% (EB10). The compounds only identified in UB10 are caffeic acid, luteolin-7-O-glucoside, and isorhamnetin; and in EB10 those compounds were vanillic acid, acteoside, luteolin, quercetin, and melanoidins. No significant difference was observed in the content of total phenolic compounds (TPC) (14.90 and 15.97 mg GAE/100 mL) and total flavonoids (TF) (5.37 and 5.85 mg QE/100 mL). An increase in the biological activity of ESFB10 (IC50: ABTS = 0.19, DPPH = 0.21, α-amylase = 1.01, α-glucosidase = 0.17, DPP4 = 0.11 mg/mL) was observed, compared to UB10 (IC50: ABTS = 0.24, DPPH = 0.31, α-amylase = 2.29, α-glucosidase = 0.47, DPP4 = 0.30 mg/mL). Therefore, the extrusion process had a positive effect, which displayed the highest efficiency inhibiting the free radicals and enzymes related to carbohydrate metabolism.

4.
Front Microbiol ; 13: 1032753, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36726572

RESUMO

The importance of the One Health concept in attempting to deal with the increasing levels of multidrug-resistant bacteria in both human and animal health is a challenge for the scientific community, policymakers, and the industry. The discovery of the plasmid-borne mobile colistin resistance (mcr) in 2015 poses a significant threat because of the ability of these plasmids to move between different bacterial species through horizontal gene transfer. In light of these findings, the World Health Organization (WHO) recommends that countries implement surveillance strategies to detect the presence of plasmid-mediated colistin-resistant microorganisms and take suitable measures to control and prevent their dissemination. Seven years later, ten different variants of the mcr gene (mcr-1 to mcr-10) have been detected worldwide in bacteria isolated from humans, animals, foods, the environment, and farms. However, the possible transmission mechanisms of the mcr gene among isolates from different geographical origins and sources are largely unknown. This article presents an analysis of whole-genome sequences of Escherichia coli that harbor mcr-1 gene from different origins (human, animal, food, or environment) and geographical location, to identify specific patterns related to virulence genes, plasmid content and antibiotic resistance genes, as well as their phylogeny and their distribution with their origin. In general, E. coli isolates that harbor mcr-1 showed a wide plethora of ARGs. Regarding the plasmid content, the highest concentration of plasmids was found in animal samples. In turn, Asia was the continent that led with the largest diversity and occurrence of these plasmids. Finally, about virulence genes, terC, gad, and traT represent the most frequent virulence genes detected. These findings highlight the relevance of analyzing the environmental settings as an integrative part of the surveillance programs to understand the origins and dissemination of antimicrobial resistance.

5.
Nutrients ; 13(11)2021 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-34836148

RESUMO

Dietary fiber (DF) is a major substrate for the gut microbiota that contributes to metabolic health. Recent studies have shown that diet-metabolic phenotype effect might be related to individual gut microbial profiles or enterotypes. Thus, the aim of this study was to examine whether microbial enterotypes modify the association between DF intake and metabolic traits. This cross-sectional study included 204 children (6-12 years old) and 75 adults (18-60 years old). Habitual DF intake was estimated with a Food Frequency Questionnaire and biochemical, clinical and anthropometric data were obtained. Gut microbiota was assessed through 16S sequencing and participants were stratified by enterotypes. Correlations adjusting for age and sex were performed to test the associations between dietary fiber components intake and metabolic traits. In children and adults from the Prevotella enterotype, a nominal negative correlation of hemicellulose intake with insulin and HOMA-IR levels was observed (p < 0.05), while in individuals of the other enterotypes, these associations were not observed. Interestingly, the latter effect was not related to the fecal short-chain-fatty acids profile. Our results contribute to understanding the enterotype influence on the diet-phenotype interaction, which ultimate could provide evidence for their use as potential biomarkers for future precision nutrition strategies.


Assuntos
Fibras na Dieta/análise , Ingestão de Alimentos/fisiologia , Microbioma Gastrointestinal/fisiologia , Resistência à Insulina/fisiologia , Adolescente , Adulto , Biomarcadores/sangue , Criança , Estudos Transversais , Inquéritos sobre Dietas , Ingestão de Alimentos/etnologia , Fezes/microbiologia , Feminino , Microbioma Gastrointestinal/efeitos dos fármacos , Humanos , Resistência à Insulina/etnologia , Masculino , México/etnologia , Pessoa de Meia-Idade , Fenótipo , RNA Ribossômico 16S/análise , Adulto Jovem
6.
Gut Microbes ; 11(4): 900-917, 2020 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-31973685

RESUMO

BACKGROUND: Gut microbiota, by influencing multiple metabolic processes in the host, is an important determinant of human health and disease. However, gut dysbiosis associated with metabolic complications shows inconsistent patterns. This is likely driven by factors shaping gut microbial composition that have largely been under-evaluated, at a population level, in school-age children, especially from developing countries. RESULTS: Through characterization, by 16S sequencing, of the largest gut microbial population-based school-aged children cohort in Latin America (ORSMEC, N = 926, aged 6-12 y), we identified associations of 14 clinical and environmental covariates (PFDR<0.1), collectively explaining 15.7% of the inter-individual gut microbial variation. Extrinsic factors such as markers of socioeconomic status showed a major influence in the most abundant taxa and in the enterotypes' distribution. Age was positively correlated with higher diversity, but only in normal-weight children (rho = 0.138, P =2 × 10-3). In contrast, this correlation although not significant, was negative in overweight and obese children (rho = -0.125, P = 0.104 and rho = -0.058, P = 0.409, respectively). Finally, co-abundance groups (CAGs) were associated with the presence of metabolic complications. CONCLUSIONS: Our study offers evidence that the presence of overweight and obesity could impair the microbial diversity maturation associated with age. Furthermore, it provides novel results toward a better understanding of gut microbiota in the pediatric population that will ultimately help to develop therapeutic approaches to improve metabolic status.


Assuntos
Bactérias/crescimento & desenvolvimento , Microbioma Gastrointestinal , Adiposidade , Adolescente , Bactérias/classificação , Bactérias/genética , Variação Biológica da População , Criança , Estudos Transversais , Dieta , Feminino , Humanos , Estilo de Vida , Masculino , Síndrome Metabólica/microbiologia , Obesidade/microbiologia , Obesidade Infantil/microbiologia , Fatores Socioeconômicos
7.
Psychiatr Clin North Am ; 38(2): 333-52, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25998120

RESUMO

The goal of the Care Pathway Model for Dementia (CARE-D) is to improve quality of life and daily functioning both for individuals diagnosed with dementia and for their families or other caregivers. This is accomplished by developing individualized recommendations focused on a person's strengths and weaknesses as determined by formal neurocognitive and psychosocial evaluations. Careful attention is given to the stage of illness and an individual's stage in life, to connecting families with services that target an individual's cognitive and behavioral symptoms, and to providing education and emotional support specific to symptoms, clinical diagnosis, and prognosis.


Assuntos
Doença de Alzheimer , Sintomas Comportamentais , Demência Frontotemporal , Técnicas Psicológicas , Qualidade de Vida , Idade de Início , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/psicologia , Doença de Alzheimer/reabilitação , Doença de Alzheimer/terapia , Sintomas Comportamentais/diagnóstico , Sintomas Comportamentais/terapia , Cuidadores/psicologia , Inteligência Emocional , Demência Frontotemporal/diagnóstico , Demência Frontotemporal/psicologia , Demência Frontotemporal/reabilitação , Demência Frontotemporal/terapia , Humanos , Testes Neuropsicológicos , Apoio Social
8.
Dalton Trans ; 44(7): 3399-409, 2015 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-25601767

RESUMO

Inspired by the stepwise addition of octanuclear iron units into mammalian ferritin, a "stop-and-go" synthesis strategy was used to prepare two microporous (Langmuir surface area, 490 m(2) g(-1); effective pore size, 4-5 Å) hierarchical materials {[Fe8(µ4-O)4(µ-pz)12Cl0.3(µ-O)1.85}n () and {[Fe8(µ4-O)4(µ-4-Me-pz)12Cl0.4(µ-O)1.8}n (), which are new members of the EO2 family of polymeric materials (E = C, Si and Ge). The secondary building units (SBUs) E = [Fe8(µ4-O)4(µ-4-R-pz)12] (Fe8) are nanoscale pseudo-spherical clusters, rather than single atoms, forming µ-oxo Fe-O-Fe linkages between Fe8-SBUs. The characteristic Fe-O-Fe asymmetric stretching mode in the infrared (IR) spectra of these compounds appearing at around 800 cm(-1) suggest the formation of approximately linear µ-oxo Fe-O-Fe linkages between Fe8-SBUs in and . We employ the concept of continuous random network (CRN) to describe for the first time the framework features of a Fe8-based amorphous materials, in which the average connecting numbers of each Fe8-cluster are ∼3.7 and ∼3.6 for and , respectively. (57)Fe-Mössbauer spectroscopic analysis provides insights to the intercluster connectivity of and on one hand and to their magnetic properties on the other, evident by a magnetic split sextet below 30 K. The combination of Mössbauer spectroscopy and magnetism measurements reveals a spin-glass behavior with Tg of ∼30 K. The hierarchical porous materials and straddle the gap between metal oxides and metal-organic frameworks (MOFs). This study may open an alternative way for the development of multifunctional materials based on high nuclearity metal clusters.

9.
Laryngoscope ; 123(1): 42-7, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23070859

RESUMO

OBJECTIVES/HYPOTHESIS: Postoperative adhesion formation after endoscopic sinus surgery (ESS) remains a complication associated with high revision rates. This study determines the efficacy of a sprayable chitosan/starch-based sealant for reducing adhesions in an ESS sheep model for chronic sinusitis. STUDY DESIGN: Prospective, blinded, randomized controlled trial. METHODS: Sheep (n = 14) with eosinophilic rhinitis (determined by the presence of eosinophilia in nasal secretions) underwent ESS with middle turbinectomies, standardized mucosal injuries created on the lateral nasal wall, and partial thickness wounds created around the ethmoid cell region. Surgery was performed bilaterally (28 nasal cavities). Animals were randomized into treatment with sprayable chitosan/starch-based sealant (n = 7, 14 nasal cavities) or no treatment (n = 7, 14 nasal cavities). Two animals in the treatment group expired due to anesthetic complications associated with the turbinectomies, leaving five animals (10 sites) that completed the study. Presence of adhesions was assessed by endoscopic evaluation at days 14 and 28 after initial surgery. Adhesion formation was confirmed via necropsy of sinus cavities at day 28 after initial surgery. RESULTS: Adhesions were observed in all seven control animals, resulting in an 86% (95% confidence interval [CI], 65-100) adhesion rate (12 of 14 sites). The five surviving treatment animals had a 10% (95% CI, 0-33) adhesion rate (one of 10 sites). Treatment with the sprayable chitosan/starch-based sealant resulted in a 76% reduction (95% CI, 32-100) of adhesions (P < .002). CONCLUSIONS: In this sheep model for chronic sinusitis, treatment with sprayable chitosan/starch-based sealant reduced adhesion formation by 76% after ESS (P < .002).


Assuntos
Quitosana/administração & dosagem , Endoscopia/efeitos adversos , Seios Paranasais/cirurgia , Complicações Pós-Operatórias/prevenção & controle , Rinite/cirurgia , Sinusite/cirurgia , Aderências Teciduais/prevenção & controle , Animais , Doença Crônica , Modelos Animais de Doenças , Estudos Prospectivos , Ovinos , Amido
10.
Otolaryngol Head Neck Surg ; 147(2): 357-63, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22492298

RESUMO

OBJECTIVE: Chronic sinusitis is the most prevalent chronic disease in the United States in adults aged 18 to 44 years, with approximately 250,000 operations performed annually. Although often successful, sinus surgery fails in greater than 15% of patients. Adhesion formation is a common complication and cause for subsequent revision surgery. Here, the authors evaluate a sprayable chitosan/starch-based sinus sealant and demonstrate its ability to reduce adhesion formation both in vitro and in 2 animal models. STUDY DESIGN: Randomized, controlled, animal trials. SETTING: Academic medical center (fibroblast experiments) and animal laboratories (sheep and rabbit studies). SUBJECTS AND METHODS: This sinus sealant was applied to human cultured fibroblasts obtained from surgically removed polyps to examine its ability to inhibit fibroblast migration and proliferation. The sinus sealant was applied to New Zealand White rabbits (n = 20) in an established cecal-sidewall abrasion model and to sheep (n = 10) in a sinus surgical adhesion model to examine its ability to reduce adhesion formation. RESULTS: This sinus sealant inhibited migration and proliferation of human cultured fibroblasts and reduced the total adhesion score from 4.9 to 0.3 for a total reduction of 94% (95th percentile confidence interval [CI], 78%, 100%; P < .001) in a well-established rabbit cecal-sidewall model commonly used for adhesion testing. Moreover, this sealant reduced adhesion formation from 80% to 10% for a total reduction of 70% (95th percentile CI, 57%, 93%; P = .003) in a sheep sinus adhesion surgical model. CONCLUSION: This chitosan-based sealant demonstrates promise for reducing adhesion formation in sinus surgery.


Assuntos
Materiais Biocompatíveis , Quitosana , Seios Paranasais/cirurgia , Aderências Teciduais/prevenção & controle , Adesivos Teciduais , Animais , Modelos Animais de Doenças , Coelhos , Ovinos , Sinusite/cirurgia
11.
Neuropsychopharmacology ; 37(4): 959-67, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22089322

RESUMO

Previous findings suggested the role of the prefrontal cortex, hippocampus, and cingulate gyrus in major depressive disorders (MDD), but the white matter microstructural abnormalities of the fibers connecting these brain structures are not known. The purpose of this study was to test the hypothesis that white matter abnormalities are present in association fibers of the uncinate fasciculus (UF) and cingulum bundle (CB) among MDD subjects. A total of 21 MDD subjects aged between 30 and 65 years and 21 age-matched healthy controls (HC) were recruited. All subjects were right-handed and without history of diabetes or other cardiac diseases. We extracted quantitative tract-specific measures based on diffusion tensor imaging tractography to examine both diffusivity and geometric properties of the UF and CB. Significantly decreased fractional anisotropy (FA) and increased radial diffusivity of the right UF were observed in MDD patients compared with HC (p<0.05), while their geometric characteristics remained relatively unchanged. Among MDD subjects, depression severity had a significant negative correlation with normalized number of fibers (NNF) in the right UF (r=-0.53, p=0.02). We also found significant age effect (oldR) in both groups in the FA measure of the CB. Our study demonstrates novel findings of white matter microstructural abnormalities of the right UF in MDD. In the MDD group, the severity of depression is associated with reduced NNF in the right UF. These findings have implications for both clinical manifestations of depression as well as its pathophysiology.


Assuntos
Mapeamento Encefálico/métodos , Transtorno Depressivo Maior/patologia , Imagem de Tensor de Difusão/métodos , Giro do Cíngulo/patologia , Vias Neurais/patologia , Córtex Pré-Frontal/patologia , Adulto , Idoso , Estudos de Casos e Controles , Transtorno Depressivo Maior/fisiopatologia , Giro do Cíngulo/anatomia & histologia , Giro do Cíngulo/fisiopatologia , Humanos , Pessoa de Meia-Idade , Fibras Nervosas Mielinizadas/patologia , Vias Neurais/anatomia & histologia , Vias Neurais/fisiopatologia , Córtex Pré-Frontal/anatomia & histologia , Córtex Pré-Frontal/fisiopatologia
12.
Am J Rhinol Allergy ; 23(6): 597-601, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19958609

RESUMO

BACKGROUND: Chronic rhinosinusitis that is refractory to medical or surgical intervention may involve a particularly resistant form of infection known as a bacterial biofilm that is recalcitrant to antibiotics secondary to physical barrier characteristics. Recently, a novel sinus cleansing solution, citric acid/zwitterionic surfactant (CAZS) was shown to be extremely effective in disrupting biofilms in vitro. The purpose of this study was to determine the effects of CAZS on sinonasal epithelium In vivo compared with normal saline. METHODS: Indwelling catheters were placed into the right maxillary sinus of New Zealand white rabbits. CAZS solution or normal saline (10 mL) was instilled at a rate of 20 mL/minute into the sinus followed by aspiration. Rabbits were killed 1, 3, and 6 days after treatment. Mucosa from both maxillary sinuses was harvested and evaluated for physiological activity (ciliary beating) as well as morphological integrity of the epithelium by scanning electron microscopy. RESULTS: One day after treatment, beating cilia was evident with morphological analysis shown intact epithelium with 80-85% denudation of cilia compared with saline. Three days after treatment, ciliary activity was again noted with morphological evidence of persistent denuded cilia. By day 6 after treatment, the epithelium had regenerated cilia over the apical surface. Throughout the recovery period beating cilia was evident in CAZS-treated sinuses. CONCLUSION: This study shows that although CAZS acutely denudes respiratory cilia, the remaining cilia are active. Additionally, the epithelial barrier appears intact with active ciliogenesis, and reciliation of the mucosal surface occurring 6 days after treatment.


Assuntos
Cílios/efeitos dos fármacos , Ácido Cítrico/administração & dosagem , Detergentes/administração & dosagem , Mucosa Nasal/efeitos dos fármacos , Tensoativos/administração & dosagem , Animais , Cateteres de Demora , Cílios/fisiologia , Ácido Cítrico/efeitos adversos , Detergentes/efeitos adversos , Microscopia Eletrônica de Varredura , Mucosa Nasal/patologia , Mucosa Nasal/fisiologia , Seios Paranasais/patologia , Seios Paranasais/cirurgia , Coelhos , Tensoativos/efeitos adversos
13.
J Electromyogr Kinesiol ; 18(4): 591-7, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17306564

RESUMO

There is a discrepancy between males and females in regards to lower extremity injury rates, particularly at the knee [Agel, J., Arendt, E.A., Bershadsky, B., 2005. Anterior cruciate ligament injury in National Collegiate Athletic Association basketball and soccer: a 13-year review. American Journal of Sports Medicine 33, (4) 524-530]. Gender differences in neuromuscular recruitment characteristics of the muscles that stabilize the knee are often implicated as a factor in this discrepancy. There is considerable research in the area of gender differences in regards to neuromuscular characteristics of the lower extremity in response to perturbation; however, most studies have been performed on the adult population only. Additionally, there is no consensus as to the gender differences that have been demonstrated. The purpose of this study was to compare muscular preactivation of selected lower extremity muscles (vastus medialis, rectus femoris, and medial/lateral hamstrings) in adolescent female basketball athletes, male basketball athletes, and female non-athletes in response to a drop landing. Subjects in the female non-athlete group recruited rectus femoris significantly slower than both the female athlete and male athlete groups (619.9=588.5>200.1ms prior to ground contact). The female non-athlete group also demonstrated a significantly slower vastus medialis compared to the female athlete group (127.1 vs 408.1ms), but not significantly slower than the male athlete group (127.1 vs 275.7ms). There were no differences between female athletes and male athletes for time to initial contraction of any muscle groups. No differences were found among the groups for medial or lateral hamstring activation. This study demonstrates that physical conditioning due to basketball participation appears to affect neuromuscular recruitment in adolescents and reveals a necessity to find alternate methods of training the hamstrings for improved neuromuscular capabilities to prevent injury.


Assuntos
Perna (Membro)/fisiologia , Músculo Esquelético/fisiologia , Músculo Quadríceps/fisiologia , Recrutamento Neurofisiológico/fisiologia , Esportes , Adolescente , Basquetebol , Feminino , Humanos , Masculino , Fatores Sexuais
14.
J Geriatr Psychiatry Neurol ; 20(3): 153-60, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17712098

RESUMO

Primary Progressive Aphasia (PPA) is a clinical dementia syndrome in which language functions decline over time while other cognitive domains remain relatively preserved for at least 2 years. Because PPA patients suffer progressive interference with communication despite relatively preserved memory, reasoning, and insight, there is reason to believe they may experience depression. Geriatric Depression Scale (GDS) scores from PPA patients and normal controls were compared, the relationship between GDS and neuropsychological test scores was examined, and responses to items on the GDS were explored and grouped by the GDS factor structure. A significant proportion of PPA patients scored in the clinically depressed range. Although PPA patients as a group were not clinically depressed, they reported more symptoms of depression than controls, and the number of symptoms correlated with severity of naming impairment in depressed PPA patients. Symptoms of social withdrawal and lack of mental and physical energy were most common, suggesting that patients with PPA should be evaluated for depression so that they may be appropriately treated.


Assuntos
Afasia Primária Progressiva/epidemiologia , Afasia Primária Progressiva/psicologia , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/psicologia , Idoso , Transtorno Depressivo/diagnóstico , Feminino , Avaliação Geriátrica/métodos , Avaliação Geriátrica/estatística & dados numéricos , Humanos , Masculino , Testes Neuropsicológicos/estatística & dados numéricos , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Estudos Retrospectivos , Índice de Gravidade de Doença , Estresse Psicológico/epidemiologia , Estresse Psicológico/psicologia
16.
Alzheimers Care Q ; 7(4): 243-250, 2006 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-20596301

RESUMO

Frontotemporal dementia and primary progressive aphasia are relatively rare dementias, with average age of onset in the 40s to 60s, and cause initial degeneration in behavior and language, respectively. Caregivers of diagnosed individuals report that there is little information available about these diseases. In response to this need, we designed and implemented a 3-part series of conferences aimed to educate and provide support to these caregivers. This article introduces the reader to the 2 disorders, highlights the need for specialized resources, and describes the execution of the conferences. The need for similar resources to be offered in other regions is discussed.

17.
Gen Comp Endocrinol ; 144(3): 257-63, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16112671

RESUMO

The pesticide metabolite p,p'-DDE (1,1-dichloro-2,2-bis (p-chlorophenyl) ethylene), has been implicated in numerous reproductive and developmental abnormalities. Previous work has shown this ubiquitous contaminant to behave in an estrogenic or antiandrogenic manner, depending on the species and endpoints examined. In the current study, we examined the effects of embryonic exposure to p,p'-DDE in the alligator, a species that exhibits temperature-dependent sex determination. We compared sex ratios at an intermediate and all male producing temperature, as well as plasma testosterone (T) and gonad aromatase activity relative to untreated controls and in ovo estradiol-17beta (E(2))-treated neonates that served as positive estrogenic controls. We also compared oviductal epithelial cell height (ECH) and phallus size-estrogen and androgen responsive tissue, respectively. A female biased sex ratio was observed among hatchlings exposed to p,p'-DDE at 100 parts per billion (ppb) wet egg mass at the intermediate incubation temperature. No effect on sex determination was observed for p,p'-DDE at the all male producing temperature. Significant influence on sex determination was observed for E(2) at 100 and 0.1 ppb at the intermediate temperature and 100 ppb at the all male producing temperature. Both p,p'-DDE and E(2) failed to influence plasma T, gonadal aromatase activity, oviductal ECH, and phallus morphology at the concentrations used. Our data show that gonadal differentiation is highly sensitive to chemical perturbation relative to the other endpoints examined, and that the response to the interaction of dose and temperature should be taken into account in similar studies.


Assuntos
Jacarés e Crocodilos/embriologia , Jacarés e Crocodilos/crescimento & desenvolvimento , Diclorodifenil Dicloroetileno/toxicidade , Óvulo/efeitos dos fármacos , Animais , Aromatase/metabolismo , Feminino , Masculino , Ovário/efeitos dos fármacos , Ovário/embriologia , Oviductos/anatomia & histologia , Oviductos/efeitos dos fármacos , Pênis/anatomia & histologia , Pênis/efeitos dos fármacos , Processos de Determinação Sexual , Testículo/efeitos dos fármacos , Testículo/embriologia , Testosterona/sangue
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