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1.
Soc Work Health Care ; 59(7): 499-512, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32762418

RESUMO

Children in the child welfare system have greater rates of obesity and are more prone to overweight/obesity as adults compared to other children. There is limited research on how ecological, biological and developmental factors impact the trajectory of overweight/obesity in this group. This retrospective study examined these factors among children entering the child welfare system. Overweight/obesity was highest among children 12-18 years. Children with diagnoses indicative of poor nutrition, and limiting exercise, were more likely to be overweight/obese. Ecological risks often were not disclosed. Barriers to obtaining information to address overweight/obesity reflect challenges to addressing chronic disease more broadly.


Assuntos
Proteção da Criança/psicologia , Saúde Mental/etnologia , Sobrepeso/etnologia , Obesidade Infantil/etnologia , Adolescente , Índice de Massa Corporal , Criança , Pré-Escolar , Dieta , Etnicidade , Exercício Físico , Feminino , Humanos , Masculino , Grupos Minoritários , Grupos Raciais , Estudos Retrospectivos , Fatores Socioeconômicos , Estados Unidos/epidemiologia
2.
Child Care Health Dev ; 45(6): 861-866, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31322754

RESUMO

BACKGROUND: As a means to provide safety for a population at great risk of harm through abandonment, every state in the United States now has laws and practices for the safe relinquishment of newborns and infants. However, there is no national database tracking the population of infants surrendered through such programmes, and few states monitor these numbers. The primary aim of this study was therefore to examine the descriptive characteristics of infants who have been safely surrendered in a large, socio-economically diverse urban area. The secondary aim was to compare them with local population norms to determine whether differences exist and to begin exploring what implications such differences may have for the treatment provided to these infants. METHODS: A retrospective cross-sectional study was conducted among safely surrendered infants. RESULTS: Over half of the infants had medical issues, and the majority of the infants were surrendered in communities characterized by low median income. CONCLUSIONS: Preliminary information highlights potential economic, social, and medical risk factors, suggesting that these infants may require increased monitoring and/or specialized care.


Assuntos
Custódia da Criança/legislação & jurisprudência , Criança Abandonada/legislação & jurisprudência , Criança não Desejada , Estudos Transversais , Feminino , Humanos , Recém-Nascido , Los Angeles/epidemiologia , Masculino , Orfanatos/legislação & jurisprudência , Política Pública , Estudos Retrospectivos , Populações Vulneráveis/legislação & jurisprudência , Populações Vulneráveis/estatística & dados numéricos
3.
J Dairy Sci ; 100(8): 6504-6515, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28601453

RESUMO

Periparturient dairy cows experience impaired immune function, exhibited as a transient decrease in neutrophil function. This decrease in immune competence is associated with an increase in susceptibility to bacterial infections, including mastitis and metritis. Bovine granulocyte colony stimulating factor (bG-CSF) is an endogenous protein that enhances neutrophil bactericidal functions and increases the production of neutrophils from bone marrow precursors. Administration of pegbovigrastim (recombinant bG-CSF covalently bound to polyethylene glycol) around the time of calving has been shown to reduce the incidence of new clinical mastitis cases in a natural disease model system. To further explore the application of pegbovigrastim under herd management systems typical of those found in the US dairy industry, we conducted a multicenter field study to evaluate the efficacy and clinical safety of pegbovigrastim administered to multiparous cows and heifers approximately 7 d before calving and within 24 h of calving. Responses of treated cows were compared with those of animals treated with sterile saline. Animals treated with pegbovigrastim exhibited 4- to 5-fold increases in circulating neutrophil numbers within 24 h of treatment initiation, and this increase persisted at least a week beyond the second dose. Pegbovigrastim-treated animals exhibited a 35% decrease in the incidence of clinical mastitis relative to the controls during the first 30 d of lactation. Animals treated with pegbovigrastim also exhibited a 52% reduction in failure to return to visual estrus within 80 d of calving. We observed no differences in somatic cell count or milk composition between treated and control animals. We also found no differences in the duration of pregnancy or proportion of viable calves in treated cows relative to control animals. These results indicate that administration of pegbovigrastim provides a well-tolerated, novel approach to overcoming periparturient immune suppression, resulting in reduced susceptibility to clinical mastitis during early lactation.


Assuntos
Imunomodulação , Mastite Bovina/prevenção & controle , Paridade , Animais , Bovinos , Feminino , Lactação , Leite , Gravidez
4.
J Appl Res Intellect Disabil ; 30(2): 290-300, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26834005

RESUMO

BACKGROUND: This study assessed the knowledge of personal safety skills among children with developmental disabilities and their parents' perceptions of children's knowledge. METHOD: This exploratory study examined the mental health records of 37 children with developmental disabilities referred for an abuse risk reduction group in a community mental health setting. Qualitative analysis of children's responses to questions about personal safety skills (knowledge related to physical development and personal safety, an appropriate and inappropriate touch and safety skills to respond to an inappropriate touch) indicated participants' varied and inconsistent levels of knowledge. RESULTS: Consistent with the literature, the results indicate risk factors for sexual abuse among children with developmental disabilities, including children's difficulty distinguishing between an appropriate and inappropriate touch and the lack of knowledge regarding appropriate venues for disclosing an inappropriate touch. Among parents, a lack of certainty regarding their children's knowledge and the ability to keep themselves safe was identified. CONCLUSION: Results support the need for education about personal safety for children with developmental disabilities and their families.

5.
J Neurochem ; 135(3): 565-76, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26179031

RESUMO

Hepatic encephalopathy (HE) is a serious neurological complication of acute and chronic liver failure. Expression of the neurosteroid/bile acid receptor Takeda G protein-coupled receptor 5 (TGR5) has been demonstrated in the brain and is thought to be neuroprotective. However, it is unknown how TGR5 signaling can influence the progression and associated neuroinflammation of HE. HE was induced in C57Bl/6 mice via intraperitoneal injection of azoxymethane (AOM) and tissue was collected throughout disease progression. TGR5 expression was elevated in the frontal cortex following AOM injection in mice. The cellular localization of TGR5 was found in both neurons and microglia in the cortex of C57Bl/6 mice. Central infusion of the TGR5 agonist, betulinic acid, prior to AOM injection delayed neurological decline, increased cortical cyclic adenosine monophosphate concentrations, reduced microglia activation and proliferation, and reduced proinflammatory cytokine production. Betulinic acid treatment in vitro reduced the neuronal expression of chemokine ligand 2, a chemokine previously demonstrated to contribute to HE pathogenesis. Lastly, treatment of the microglia cell line EOC-20 with conditioned media from betulinic acid-treated primary neurons decreased phagocytic activity and cytokine production. Together, these data identify that activation of TGR5, which is up-regulated during HE, alleviates neuroinflammation and improves outcomes of AOM-treated mice through neuron and microglia paracrine signaling.


Assuntos
Encefalopatia Hepática/metabolismo , Encefalopatia Hepática/prevenção & controle , Receptores Acoplados a Proteínas G/metabolismo , Transdução de Sinais/fisiologia , Animais , Células Cultivadas , Inflamação/metabolismo , Inflamação/prevenção & controle , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Triterpenos Pentacíclicos , Receptores Acoplados a Proteínas G/agonistas , Transdução de Sinais/efeitos dos fármacos , Triterpenos/administração & dosagem , Ácido Betulínico
6.
Sci Rep ; 14(1): 14046, 2024 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-38890398

RESUMO

Elucidating genetic diversity within wild forms of modern crops is essential for understanding domestication and the possibilities of wild germplasm utilization. Gossypium hirsutum is a predominant source of natural plant fibers and the most widely cultivated cotton species. Wild forms of G. hirsutum are challenging to distinguish from feral derivatives, and truly wild populations are uncommon. Here we characterize a population from Mound Key Archaeological State Park, Florida using genome-wide SNPs extracted from 25 individuals over three sites. Our results reveal that this population is genetically dissimilar from other known wild, landrace, and domesticated cottons, and likely represents a pocket of previously unrecognized wild genetic diversity. The unexpected level of divergence between the Mound Key population and other wild cotton populations suggests that the species may harbor other remnant and genetically distinct populations that are geographically scattered in suitable habitats throughout the Caribbean. Our work thus has broader conservation genetic implications and suggests that further exploration of natural diversity in this species is warranted.


Assuntos
Variação Genética , Gossypium , Polimorfismo de Nucleotídeo Único , Florida , Gossypium/genética , Filogenia , Domesticação , Genética Populacional , Genoma de Planta
7.
J Clin Transl Sci ; 7(1): e18, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36755546

RESUMO

Structural racism in the USA has roots that extend deep into healthcare and medical research, and it remains a key driver of illness and early death for Black, Indigenous, People of Color (BIPOC). Furthermore, the persistence of racism within academic medicine compels an interrogation of education and research within this context. In the spirit of this interrogation, this article highlights a unique model of community-engaged education that integrates cultural humility. As an individual and institutional stance, cultural humility denotes lifelong learning and self-critique, the mitigation of power imbalances, and accountability. The integration of cultural humility emphasizes that when space is created for BIPOC communities to lead the way, education regarding healthcare and research can be effectively reimagined. Demonstrating this effectiveness, six community partners led the development and implementation of a five-module Structural Racism in Healthcare and Research course. Using a cohort model approach, the pilot course enrolled 12 community members and 12 researchers. The curriculum covered topics such as history of racism in healthcare and research, and introduced participants to a cultural resilience framework. Evaluation results demonstrated a significant increase in participants' knowledge and ability to identify and take action to address inequities related to racism in healthcare and research.

8.
Ann Plast Surg ; 68(2): 142-9, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21587040

RESUMO

Our prospective clinical trial collected sensory data using a computerized pressure-specified sensory device comparing 4 procedures for reduction mammaplasty. A total of 48 patients were assessed at baseline, 6 weeks (n = 42), 6 months (n = 15), and 1 year (n = 24) postoperatively. The findings of our study showed pressure sensitivity for women <43 years of age improved by pressure-specified sensory device assessment; whereas, outcome data merely indicated return to baseline in pressure sensitivity for women ≥ 43 years of age. Improved sensitivities for moving and static pressures were found in patients receiving vertical or inferior pedicle reduction mammaplasties. Reductions based on superior pedicles exhibited sensory loss as compared with baseline measurements while those receiving free nipple grafts showed negligible change. Moving and static sensation showed differential return after breast reduction irrespective of the specific surgical approach but sensation was uniquely conserved for the nipple. In the total cohort, the type of breast reduction procedure did not produce significant differences in breast sensation.


Assuntos
Mama/fisiologia , Mamoplastia/métodos , Tato , Adolescente , Adulto , Fatores Etários , Idoso , Mama/cirurgia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Análise Multivariada , Pressão , Estudos Prospectivos , Fenômenos Fisiológicos da Pele , Inquéritos e Questionários , Fatores de Tempo , Adulto Jovem
9.
Ann Emerg Med ; 57(2): 138-40, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20817348

RESUMO

The increase in cases of community-acquired methicillin-resistant Staphylococcus aureus (MRSA), as well as its isolation from the majority of skin and soft tissue abscesses in the emergency department, requires the emergency physician to consider this diagnosis in all skin or soft tissue infections. However, making the diagnosis of MRSA when the wound is actually a cutaneous lesion of a brown recluse spider bite may have untoward consequences. Furthermore, the clinical manifestations of systemic loxoscelism may be misdiagnosed as a systemic staphylococcal infection. We present a patient with systemic loxoscelism who was diagnosed with a systemic infection and received an unnecessary surgical procedure.


Assuntos
Staphylococcus aureus Resistente à Meticilina , Picada de Aranha/diagnóstico , Infecções Cutâneas Estafilocócicas/diagnóstico , Animais , Axila , Criança , Erros de Diagnóstico , Humanos , Masculino , Picada de Aranha/patologia , Aranhas , Infecções Cutâneas Estafilocócicas/patologia
10.
Pathology ; 53(5): 639-644, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33518383

RESUMO

The objective of this study was to review the antifungal susceptibility of clinical mould isolates performed by the New Zealand Mycology Reference Laboratory. Isolates were either local or referred for testing from other New Zealand laboratories. All isolates were tested by the broth colorimetric microdilution method, Sensititre YeastOne (SYO). Epidemiological cut-off values (ECVs) derived from either the Clinical and Laboratory Standards Institute (CLSI) method or SYO were used to determine the proportion of non-wild type (non-WT) isolates, i.e., those with an increased likelihood to harbour acquired mechanisms of resistance. A total of 614 isolates were tested. Most isolates (55%) were from the respiratory tract followed by musculoskeletal tissue (17%), eye (10%) and abdomen (5%). The azoles had similar activity except for voriconazole which was less active against the Mucorales. The echinocandins had good activity against Aspergillus spp., other hyaline moulds and dematiaceous isolates but were inactive against Fusarium spp., Lomentospora prolificans and the Mucorales. Amphotericin B had best activity against the Mucorales. The two least susceptible groups were Fusarium spp. and L. prolificans isolates. Three Aspergillus isolates were non-WT for amphotericin B, and four non-WT for azoles. Non-WT were not encountered for caspofungin. Non-Aspergillus isolates in New Zealand have susceptibility patterns similar to those reported elsewhere. In contrast to a growing number of other countries, azole resistance was rare in A. fumigatus sensu stricto. Non-WT isolates were uncommon. The results provide a baseline for monitoring emerging antifungal resistance in New Zealand and support current Australasian treatment guidelines for invasive fungal infections.


Assuntos
Antifúngicos/farmacologia , Fungos/efeitos dos fármacos , Anfotericina B/farmacologia , Aspergillus/efeitos dos fármacos , Farmacorresistência Fúngica , Equinocandinas/farmacologia , Humanos , Testes de Sensibilidade Microbiana , Nova Zelândia
11.
Lab Chip ; 9(24): 3495-503, 2009 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-20024028

RESUMO

This paper describes a microsystem for automated blood sampling from laboratory mice used in pharmacokinetic studies. Intended to be mounted as a "backpack" on a mouse, it uses a microneedle, reservoir, and an actuator to instantaneously prick the animal for a time-point sample, eliminating the need for a tethered catheter with large dead volume. The blood is collected by capillary effect through a 31-33 gauge microneedle (250-210 microm OD) into a approximately 1 microL micromachined steel reservoir. The voice coil actuator provides a peak force of approximately 300 mN, which amply exceeds the measured piercing force of mouse skin (i.e., 60-85 mN for a 31-gauge needle with 12 degrees bevel). The sampling system was tested in vitro using a mock vessel with adjustable pressure; the reservoir was filled in <0.15 s by a combination of the capillary effect and blood pressure. The system may also be used to sample interstitial fluid, but the absence of blood pressure makes it necessary to enhance the capillary effect of the needle. This is accomplished by either electropolishing the inner surface to make it more hydrophilic or using a polymer wire insert to increase the surface area. The steel surface of the reservoir is also coated with silicon oxynitride by plasma-enhanced chemical vapor deposition to improve its hydrophilicity. Blood from fresh bovine tissue was collected into the reservoir to simulate interstitial fluid sampling. In vivo tests on live, anesthetized mice resulted in successful collection of blood into the reservoir. The possible integration of the device in microanalytical systems and the device scalability for multisampling are discussed.


Assuntos
Sangue , Microtecnologia , Farmacocinética , Manejo de Espécimes/métodos , Animais , Bovinos , Desenho de Equipamento , Líquido Extracelular/metabolismo , Camundongos , Agulhas , Pressão , Pele , Manejo de Espécimes/instrumentação
12.
NASN Sch Nurse ; 34(1): 25-28, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30222046

RESUMO

The number of children diagnosed with mental and behavioral health issues is increasing each year. Early identification and intervention for these issues are vital to improving long-term outcomes. School nurses are among the frontline healthcare providers for school-age children, screening and coordinating care for multiple physical and mental health conditions. This article describes the implementation of a national mental health online training program at a local district. Outcomes of the implementation project and implications for school nurses are discussed.


Assuntos
Implementação de Plano de Saúde , Transtornos Mentais/enfermagem , Serviços de Saúde Mental , Serviços de Enfermagem Escolar , Criança , Humanos , Inquéritos e Questionários , Texas
13.
Alcohol ; 67: 37-43, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29316477

RESUMO

Fetal Alcohol Spectrum Disorders (FASD) might be 10-15 times more prevalent among foster/adopted children compared to the general population; however, many of these children remain undiagnosed or misdiagnosed. The lack of confirmed prenatal alcohol exposure (PAE) may be a key barrier to diagnosis. Our sample included 681 patients evaluated for FASD, according to the University of Washington 4-Digit Diagnostic Code, at a pediatric specialty clinic. Guardianship status and other patient characteristics were evaluated by multinomial logistic regression as potential predictors of being classified into one of the following FASD groups: 1) full or partial Fetal Alcohol Syndrome (FAS/pFAS; n = 97); 2) Static Encephalopathy/Alcohol-Exposed (SE/AE) or Neurobehavioral Disorder/Alcohol-Exposed (ND/AE) (n = 135); and 3) some features of FASD (equivalent to pFAS, SE/AE or ND/AE phenotypes) but unknown PAE (n = 449). Median age at assessment was 7.0 years, non-Hispanic White constituted the predominant racial/ethnic group (49.5%), and the majority (81.8%) lacked involvement from a biological parent/relative. Many patients (66.0%) had some features of FASD but lacked reliable PAE information. Children classified into the 'some features/unknown PAE' group had higher median age of assessment (8 years) compared to other groups (6 years; p < 0.001). No association was observed between race/ethnicity or child's sex and FASD outcomes (p > 0.05). Adopted/foster children were 2.8 times as likely (95% CI: 1.6; 4.8) to be classified into the 'some features/unknown PAE' group compared to children living with a parent/relative after adjusting for covariates. This study's findings indicate that adopted/foster children are more likely to have unknown PAE and not receive a FASD diagnosis, potentially denying them access to specialized services, treatment, and rehabilitation.


Assuntos
Alcoolismo/diagnóstico , Criança Adotada , Criança Acolhida , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Adolescente , Alcoolismo/epidemiologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Humanos , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Sudoeste dos Estados Unidos/epidemiologia
14.
J Glob Antimicrob Resist ; 14: 72-77, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29486358

RESUMO

OBJECTIVES: We reviewed the antifungal susceptibility testing results of local yeast isolates (2001-2015) to record the impact of recently updated interpretive criteria and epidemiological cut-off values (ECVs) for yeast species. METHODS: Susceptibility testing was performed using Sensititre® YeastOne®. The results were interpreted following CLSI criteria or YeastOne-derived ECVs. RESULTS: A total of 2345 isolates were tested; 62.0% were from sterile body sites or tissue. Application of new CLSI interpretative criteria for fluconazole increased the proportion of non-susceptible isolates of Candida parapsilosis, Candida tropicalis and Candida glabrata (P≤0.03 for all species). For voriconazole, the greatest increase was for C. tropicalis (P<0.0001). Application of new CLSI interpretive criteria for caspofungin increased the proportion of non-susceptible isolates for C. glabrata and Pichia kudriavzevii (P<0.0001 for both). The new amphotericin ECV (≤2mg/L) did not reveal any non-wild-type (non-WT) isolates in the five species covered. YeastOne itraconazole ECVs detected 2%, 5% and 6% non-WT isolates for P. kudriavzevii, C. tropicalis and C. glabrata, respectively. No itraconazole non-WT isolates of Clavispora lusitaniae were detected. CONCLUSIONS: Whilst most results are similar to other large surveys of fungal susceptibility, the new CLSI interpretive criteria significantly altered the proportion of non-susceptible isolates to fluconazole, voriconazole and caspofungin for several Candida spp. Application of CLSI and YeastOne-derived ECVs revealed the presence of a low proportion of non-WT isolates for many species. The results serve as a baseline to monitor the susceptibility of Candida and other yeast species in New Zealand over time.


Assuntos
Antifúngicos/farmacologia , Candida/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Pichia/efeitos dos fármacos , Anfotericina B/farmacologia , Candida/isolamento & purificação , Caspofungina/farmacologia , Farmacorresistência Fúngica , Fluconazol/farmacologia , Humanos , Micoses/epidemiologia , Micoses/microbiologia , Nova Zelândia/epidemiologia , Pichia/isolamento & purificação
15.
Front Microbiol ; 9: 1179, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29922262

RESUMO

The yeast Candida albicans is an important opportunistic human pathogen. For C. albicans strain typing or drug susceptibility testing, a single colony recovered from a patient sample is normally used. This is insufficient when multiple strains are present at the site sampled. How often this is the case is unclear. Previous studies, confined to oral, vaginal and vulvar samples, have yielded conflicting results and have assessed too small a number of colonies per sample to reliably detect the presence of multiple strains. We developed a next-generation sequencing (NGS) modification of the highly discriminatory C. albicans MLST (multilocus sequence typing) method, 100+1 NGS-MLST, for detection and typing of multiple strains in clinical samples. In 100+1 NGS-MLST, DNA is extracted from a pool of colonies from a patient sample and also from one of the colonies. MLST amplicons from both DNA preparations are analyzed by high-throughput sequencing. Using base call frequencies, our bespoke DALMATIONS software determines the MLST type of the single colony. If base call frequency differences between pool and single colony indicate the presence of an additional strain, the differences are used to computationally infer the second MLST type without the need for MLST of additional individual colonies. In mixes of previously typed pairs of strains, 100+1 NGS-MLST reliably detected a second strain. Inferred MLST types of second strains were always more similar to their real MLST types than to those of any of 59 other isolates (22 of 31 inferred types were identical to the real type). Using 100+1 NGS-MLST we found that 7/60 human samples, including three superficial candidiasis samples, contained two unrelated strains. In addition, at least one sample contained two highly similar variants of the same strain. The probability of samples containing unrelated strains appears to differ considerably between body sites. Our findings indicate the need for wider surveys to determine if, for some types of samples, routine testing for the presence of multiple strains is warranted. 100+1 NGS-MLST is effective for this purpose.

16.
Vet Ther ; 8(2): 127-35, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17616947

RESUMO

After undergoing arrival processing at one of two commercial feedlots, feeder calves with clinical signs of bovine respiratory disease (BRD) were randomly assigned to receive either tulathromycin (2.4 mg/kg SC) or enrofloxacin (12.5 mg/kg SC). Additional therapy for calves that did not respond to initial treatment followed a prescribed course. Initial treatment with tulathromycin resulted in significantly higher (P = .009 and P = .031 at sites 1 and 2, respectively) therapeutic success (87.9% and 80%, respectively) than did initial treatment with enrofloxacin (70.2% and 62.5%, respectively). Animals treated with tulathromycin also had fewer subsequent treatments and higher weight gains compared with those treated with enrofloxacin.


Assuntos
Antibacterianos/uso terapêutico , Complexo Respiratório Bovino/tratamento farmacológico , Dissacarídeos/uso terapêutico , Fluoroquinolonas/uso terapêutico , Compostos Heterocíclicos/uso terapêutico , Animais , Animais Recém-Nascidos , Antibacterianos/administração & dosagem , Bovinos , Colorado , Dissacarídeos/administração & dosagem , Enrofloxacina , Fluoroquinolonas/administração & dosagem , Compostos Heterocíclicos/administração & dosagem , Injeções Subcutâneas/veterinária , Recidiva , Texas , Resultado do Tratamento , Aumento de Peso
18.
Mol Endocrinol ; 29(12): 1720-30, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26431088

RESUMO

Suppression of the hypothalamic-pituitary-adrenal (HPA) axis has been shown to occur during cholestatic liver injury. Furthermore, we have demonstrated that in a model of cholestasis, serum bile acids gain entry into the brain via a leaky blood brain barrier and that hypothalamic bile acid content is increased. Therefore, the aim of the current study was to determine the effects of bile acid signaling on the HPA axis. The data presented show that HPA axis suppression during cholestatic liver injury, specifically circulating corticosterone levels and hypothalamic corticotropin releasing hormone (CRH) expression, can be attenuated by administration of the bile acid sequestrant cholestyramine. Secondly, treatment of hypothalamic neurons with various bile acids suppressed CRH expression and secretion in vitro. However, in vivo HPA axis suppression was only evident after the central injection of the bile acids taurocholic acid or glycochenodeoxycholic acid but not the other bile acids studied. Furthermore, we demonstrate that taurocholic acid and glycochenodeoxycholic acid are exerting their effects on hypothalamic CRH expression after their uptake through the apical sodium-dependent bile acid transporter and subsequent activation of the glucocorticoid receptor. Taken together with previous studies, our data support the hypothesis that during cholestatic liver injury, bile acids gain entry into the brain, are transported into neurons through the apical sodium-dependent bile acid transporter and can activate the glucocorticoid receptor to suppress the HPA axis. These data also lend themselves to the broader hypothesis that bile acids may act as central modulators of hypothalamic peptides that may be altered during liver disease.


Assuntos
Ácidos e Sais Biliares/metabolismo , Ácidos e Sais Biliares/farmacologia , Sistema Hipotálamo-Hipofisário/efeitos dos fármacos , Sistema Hipotálamo-Hipofisário/metabolismo , Hipotálamo/efeitos dos fármacos , Hipotálamo/metabolismo , Sistema Hipófise-Suprarrenal/efeitos dos fármacos , Sistema Hipófise-Suprarrenal/metabolismo , Animais , Resina de Colestiramina/farmacologia , Hormônio Liberador da Corticotropina/metabolismo , Masculino , Ratos , Ratos Sprague-Dawley
19.
J Consult Clin Psychol ; 67(5): 786-789, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10535245

RESUMO

Consecutive admissions to an outpatient child psychiatry clinic diagnosed with oppositional defiant disorder (ODD), attention deficit-hyperactivity disorder (ADHD), or adjustment disorder were assessed for trauma exposure by a structured clinical interview and parent report. Controlling for age, gender, severity of internalizing behavior problems, social competence, family psychopathology, and parent-child relationship quality (assessed by parent report), an ODD diagnosis, with or without comorbid ADHD, was associated with increased likelihood of prior victimization (but not nonvictimization) trauma. ADHD alone was not associated with an increased likelihood of a history of trauma exposure. Traumatic victimization contributed uniquely to the prediction of ODD but not ADHD diagnoses. Children in psychiatric treatment who are diagnosed with ODD, but not those diagnosed solely with ADHD, may particularly require evaluation and care for posttraumatic sequelae.


Assuntos
Transtornos de Deficit da Atenção e do Comportamento Disruptivo/etiologia , Maus-Tratos Infantis/psicologia , Acontecimentos que Mudam a Vida , Estresse Psicológico/complicações , Adolescente , Criança , Feminino , Humanos , Masculino , Estudos Retrospectivos , Estatística como Assunto
20.
Contemp Top Lab Anim Sci ; 37(1): 74-76, 1998 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12456184

RESUMO

A large, firm lipoma was found in the cranial mediastinum of a 3-year-old female prairie dog (Cynomys ludovicianus). It encompassed the carotid arteries, jugular veins, and thymus, and compressed the esophagus and trachea. Localized compression caused dysphagia, weight loss, and dyspnea, which eventually resulted in death. Most reports on prairie dogs involve their use in research on gallbladder contractility and its role in formation of cholesterol gallstones. There are few reports on naturally developing diseases in prairie dogs, and reports of neoplasia consist of only hepatocellular carcinoma and epiglottal fibrosarcoma. Intrathoracic lipomas have been reported as rare tumors in human beings, dogs, and rats. We describe here an intrathoracic lipoma in a prairie dog and information about this type of tumor in other species.

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