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1.
Ther Clin Risk Manag ; 19: 745-753, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37744558

RESUMO

Objective: COVID-19, coinciding with the opioid epidemic in the United States, has had significant impacts on health-care utilization. While mixed, early analyses signaled a potential resurgence in opioid use following the pandemic. The primary study objective was to assess the association of the COVID-19 pandemic with opioid utilization among Health First Colorado (Colorado's Medicaid Program) members and a non-Medicaid managed care cohort who did not have a diagnosis of cancer or sickle cell disease. Patients and Methods: Using an interrupted time series and segmented regression analysis, this population-level study assessed the association of the COVID-19 pandemic on prescribed utilization of long- and short-acting opioid analgesics among Health First Colorado members and a random sample of non-Medicaid managed care members. Pharmacy claims data for both cohorts were assessed between October 1, 2018, and September 30, 2021, with April 2020 identified as the interruption of interest. We evaluated the following monthly opioid use measures separately for short-acting and long-acting opioids: number of members filling an opioid, total fills, and total days supplied. Results: Short- and long-acting opioid utilization was significantly decreasing among Health First Colorado members in the 18 months prior to the start of COVID-19. After the onset of the pandemic, utilization stabilized and slopes were not significantly different from zero. Among the non-Medicaid managed care cohort, short- and long-acting opioid utilization significantly decreased in the 18 months leading up to the onset of the pandemic. After the onset of the pandemic, utilization of long-acting opioids stabilized, while utilization of short-acting opioids significantly increased. Conclusion: While we observed an increase in opioid utilization measures post-pandemic in the non-Medicaid managed care cohort, a similar increase was not observed in Health First Colorado members suggesting that thoughtful opioid policies put in place pre-pandemic may have been effective at controlling potential inappropriate opioid utilization.

2.
J Am Pharm Assoc (2003) ; 63(1): 301-308, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36528493

RESUMO

BACKGROUND: Since the mid-1990s, more than 500,000 deaths have been attributed to the opioid overdose epidemic, which has created a serious national crisis affecting public health and social and economic welfare. To mitigate these opioid-related overdoses and deaths, interventions targeted at both the patient and community level are needed. OBJECTIVE: This demonstration project sought to determine whether implementation of a provider-to-provider opioid pain teleconsultation service with a pain specialist was correlated with a reduction in inappropriate opioid use and improve health outcomes. METHODS: Individual-level claims data for Health First Colorado Medicaid members were collected between March 1, 2017, and September 30, 2021, for individuals who triggered a provider-to-provider pain management teleconsultation based on receipt of a prescription for an opioid where the member was receiving a high-dose opioid (n = 125) or was opioid-naive (n = 819). The primary outcome measures were a patient's opioid dose less than 200 morphine milligram equivalent (MME) by 6 months after the consult if consult was triggered for high-dose use or discontinuation of an opioid by 12 weeks after consult if the consult was triggered for opioid naivety. Secondary opioid-related health outcomes were also assessed. RESULTS: In the high-dose opioid cohort, 87% of the members had their monthly average MME reduced to less than 200 by 180 days after their consult. More than half of the opioid-naive group had discontinued their opioid by 90 days after their consult. CONCLUSION: Results indicate that provider-to-provider teleconsultation services with a pain specialist can be an effective intervention at reducing total inappropriate opioid use.


Assuntos
Overdose de Drogas , Overdose de Opiáceos , Transtornos Relacionados ao Uso de Opioides , Consulta Remota , Estados Unidos , Humanos , Analgésicos Opioides/efeitos adversos , Colorado/epidemiologia , Overdose de Drogas/epidemiologia , Overdose de Drogas/tratamento farmacológico , Overdose de Opiáceos/tratamento farmacológico , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Padrões de Prática Médica , Dor/tratamento farmacológico
3.
Am J Pharm Educ ; 86(3): 8556, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34301548

RESUMO

Pharmacists should not be classified as "mid-level" providers. This classification implies that there are different levels or a hierarchy of providers when in fact each health care provider brings unique and essential knowledge and contributions to the health care team and to the care of patients. Pharmacists are no exception. Timely issues germane to pharmacists, including dependent and independent practice, provider status, and professional identity, contribute to the rationale that pharmacists, just like all other health care providers, should be classified by their professional identity. While use of the term mid-level provider to identify various practitioners may not seem consequential, in today's health care environment, words do matter when it comes to attributing value, and the contributions of all health care providers should be recognized as equally important to the patient care team.


Assuntos
Educação em Farmácia , Farmacêuticos , Humanos , Equipe de Assistência ao Paciente , Papel Profissional
4.
Am J Pharm Educ ; 85(10): 8720, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34301582

RESUMO

EXECUTIVE SUMMARY The 2020-21 Professional Affairs Committee was charged to (1) Read all six reports from the 2019-20 AACP standing committees to identify elements of these reports that are relevant to the committee's work this year; (2) Identify opportunities and models of integration of pharmacist care services in physician and other health provider practices beyond primary care; (3) Differentiate and make the case for the integration of pharmacist care services from that of other mid-level providers; and (4) From the work on the aforementioned charges, identify salient activities for the Center To Accelerate Pharmacy Practice Transformation and Academic Innovation (CTAP) for consideration by the AACP Strategic Planning Committee and AACP staff. This report provides information on the committee's process to address the committee charges, describes the rationale for and the results from a call to colleges and schools of pharmacy to provide information on their integrating pharmacist care services in physician and other health provider practices beyond primary care practice, and discusses how pharmacist-provided patient care services differ from those provided by other healthcare providers. The committee offers a revision to a current association policy statement, a proposed policy statement as well as recommendations to CTAP and AACP and suggestions to colleges and schools of pharmacy pertaining to the committee charges.


Assuntos
Educação em Farmácia , Faculdades de Farmácia , Atenção à Saúde , Docentes de Farmácia , Humanos , Farmacêuticos , Papel Profissional
5.
Am J Pharm Educ ; 84(10): ajpe8199, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33149338

RESUMO

The 2019-2020 Professional Affairs Committee was charged to (1) Describe the leadership role of schools of pharmacy in advancing interprofessional practice, with an emphasis on physician-pharmacist collaborative relationships; (2) Establish an inventory of resources that can support school efforts to grow collaborative partnerships between pharmacists and physicians; (3) Determine gaps that exist in the resources required to support schools in efforts to facilitate expansion of interprofessional partnerships; and (4) Define strategies and draft an action plan for AACP's role in facilitating member school efforts to accelerate the development of interprofessional practices within their geography of influence. This report provides information on the committee's process to address the committee charges as well as background and resources pertaining to the charges, describes the rationale for and the results from the focus groups conducted at the 2020 AACP Interim Meeting, communicates the results of an initial inventory of models that integrate pharmacists with primary care practices, and provides an overview on issues to continue the work to integrate pharmacists with primary care practices. The committee offered several revisions to current association policy statements and provided a proposed policy statement and several recommendations to AACP pertaining to the committee charges.


Assuntos
Comitês Consultivos , Prestação Integrada de Cuidados de Saúde , Farmacêuticos , Comitê de Farmácia e Terapêutica , Atenção Primária à Saúde , Papel Profissional , Faculdades de Farmácia , Sociedades Farmacêuticas , Comportamento Cooperativo , Humanos , Comunicação Interdisciplinar , Liderança , Equipe de Assistência ao Paciente , Formulação de Políticas , Estados Unidos
6.
Am J Pharm Educ ; 82(7): 7148, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30323400

RESUMO

EXECUTIVE SUMMARY Student engagement is key to the success of schools and colleges of pharmacies in meeting their mission and programmatic needs. Student engagement in the pharmacy profession often occurs before acceptance to pharmacy school and is essential during students' formal period of study both for the student's professional growth and in meeting the mission of the school. Alumni engagement is vital to a school's continued success in regard to engaging with current students and support of their alma mater. The committee offers best practice recommendations for engaging students in service, scholarship, education, professional practice and continuing professional development.


Assuntos
Educação em Farmácia/métodos , Comitês Consultivos , Relatórios Anuais como Assunto , Currículo , Humanos , Faculdades de Farmácia
7.
Am J Health Syst Pharm ; 75(13): 978-981, 2018 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-29941536

RESUMO

PURPOSE: Expansion of clinical pharmacist positions through sustainable funding is described. SUMMARY: The University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences was awarded a 2-year program grant to establish an integrated clinical pharmacy program for underserved residents in family health centers in northeastern Colorado. The grant enabled the hiring of 2 bilingual, full-time, board-certified, postgraduate year 2-trained clinical pharmacists to initiate comprehensive clinical pharmacy services. Clinical pharmacy services for diabetes, hypertension, and dyslipidemia management were provided during direct patient care visits using collaborative drug therapy management protocols to facilitate comprehensive medication management. Initial visits lasted 1 hour, and follow-up visits lasted 30 minutes. In addition, clinical pharmacists provided point-of-care consultations for patients seeing other healthcare providers. All patient encounters and consultations were documented in the electronic health record. Success of the clinical pharmacy program was evaluated based on the achievement of goal blood pressure values, glycosylated hemoglobin values, and low-density-lipoprotein cholesterol levels. Pharmacists' involvement in patient care activities led to improvements in all of these clinical outcomes. This coincided with unique funding opportunities with regional accountable care organizations that sought to demonstrate improved patient care in an expansion population. As a result, 2 grant-funded clinical pharmacist positions in 2 community health clinics were converted into 4 faculty positions in 5 community health centers funded by regional accountable care organizations. CONCLUSION: Collaboration with accountable care organizations resulted in the successful funding of ambulatory care clinical pharmacy services. These services resulted in improved chronic disease control and provider satisfaction.


Assuntos
Conduta do Tratamento Medicamentoso/organização & administração , Farmacêuticos/economia , Farmacêuticos/provisão & distribuição , Assistência Ambulatorial/economia , Assistência Ambulatorial/organização & administração , Pressão Sanguínea , LDL-Colesterol/sangue , Colorado , Centros Comunitários de Saúde/economia , Centros Comunitários de Saúde/organização & administração , Registros Eletrônicos de Saúde , Hemoglobinas Glicadas/análise , Humanos , Área Carente de Assistência Médica , Residências em Farmácia , Sistemas Automatizados de Assistência Junto ao Leito , Apoio ao Desenvolvimento de Recursos Humanos
8.
J Am Pharm Assoc (2003) ; 58(1): 113-116, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29290339

RESUMO

OBJECTIVES: To initiate a call to action for community pharmacists and key stakeholders to encourage comprehensive and consistent education and certification for contraception services, especially in states where laws have been enacted for pharmacist prescribing of hormonal contraceptives. DATE SOURCES: Websites for several boards of pharmacy that have implemented pharmacist training for contraceptive prescribing. SUMMARY: From the authors' perspective of helping to implement laws that allow pharmacist prescribing of contraception in Oregon and Colorado, lessons learned have shown that it is better to have 1 consistent resource for pharmacist certification for the following reasons: 1) Boards of pharmacy are able to ensure patient safety because all pharmacists are providing the same level of care to every patient; 2) retail chain pharmacies and pharmacy managers are assured that all their pharmacists, regardless of state, are trained in a similar and appropriate manner; and 3) pharmacists can be reimbursed through medical insurance for the patient encounter because payers are able to identify and credential pharmacists who pass an approved and accredited certification program. CONCLUSION: New laws allowing pharmacists to prescribe contraception are expanding to other states, and the implementation of these laws provides an important increase in pharmacists' scope of practice. This exciting new prospect allows the pharmacy community of each state an opportunity to coordinate and learn from each other on best practices for implementation. Having a consistent training program was identified as being one key aspect of successful implementation.


Assuntos
Serviços Comunitários de Farmácia/legislação & jurisprudência , Fertilização/efeitos dos fármacos , Farmacêuticos/legislação & jurisprudência , Atitude do Pessoal de Saúde , Anticoncepção , Educação em Farmácia/legislação & jurisprudência , Acessibilidade aos Serviços de Saúde/legislação & jurisprudência , Humanos , Papel Profissional
9.
BMC Pediatr ; 16(1): 155, 2016 09 13.
Artigo em Inglês | MEDLINE | ID: mdl-27623808

RESUMO

BACKGROUND: Due to clinical benefits, delayed cord clamping (DCC) is recommended in infants born before 37 weeks gestational age. The objective was to institute a delayed cord clamping program and to evaluate clinical outcomes one year after initiation. METHODS: This study occured at Christiana Care Health System, a tertiary care facility with a 52 bed level 3 Neonatal Intensive Care Unit (NICU). A multidisciplinary team created a departmental policy, a DCC protocol and educational programs to support the development of a DCC program. A year after initiation of DCC, we evaluated two cohorts of very low birth weight (VLBW) infants (<1500 g) prior to (Cohort 1) and after initiation (Cohort 2) of DCC (n = 136 and n = 142 respectively). Chart review was conducted to evaluate demographic data and clinical outcomes. Analysis was completed with a retrospective, cohort analysis on an intention-to-treat basis. RESULTS: There were no differences in demographic factors between the two cohorts. We demonstrated a 73 % compliance rate with the delayed cord clamping protocol and a decrease in the percentage of VLBW infants requiring red blood cell transfusion from 53.7 to 35.9 % (p = 0.003). We also found a decreased need for respiratory support in the second cohort with no increases in the balancing measures of admission hypothermia and jaundice requiring phototherapy. During the Control Phase ongoing monitoring and education has led to a 93.7 % compliance rate. CONCLUSIONS: A multidisciplinary team including key leadership from the obstetric and pediatric departments allowed for the rapid and safe implementation of DCC.


Assuntos
Recém-Nascido Prematuro , Recém-Nascido de muito Baixo Peso , Assistência Perinatal/normas , Melhoria de Qualidade , Cordão Umbilical , Constrição , Feminino , Fidelidade a Diretrizes/estatística & dados numéricos , Humanos , Recém-Nascido , Análise de Intenção de Tratamento , Masculino , Equipe de Assistência ao Paciente/normas , Equipe de Assistência ao Paciente/estatística & dados numéricos , Assistência Perinatal/métodos , Assistência Perinatal/estatística & dados numéricos , Guias de Prática Clínica como Assunto , Melhoria de Qualidade/estatística & dados numéricos , Estudos Retrospectivos
10.
Stud Health Technol Inform ; 225: 307-13, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27332212

RESUMO

The health care delivery system in the United States is transforming at a rapid pace. Several trends, including the emergence of a Connected Health care system, will require advanced nurse practitioners to have new knowledge, skills and competencies to practice in the future. This paper describes the redesign of coursework and the development of a Connected Care Framework to guide the learning needs of nurse practitioners. A Connected Care Quotient consisting of ten relevant questions and learning activities will serve as a guide for the future development of competencies for advanced practice nurses.


Assuntos
Profissionais de Enfermagem/educação , Informática em Enfermagem/educação , Competência Clínica , Humanos , Participação do Paciente/métodos , Telenfermagem/educação , Telenfermagem/métodos , Estados Unidos
11.
J Pain ; 17(4): 436-43, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26721613

RESUMO

UNLABELLED: This study aims to determine risk factors of opioid overdose among the Colorado Medicaid population. A retrospective nested case-control study was undertaken. Medicaid beneficiaries who had ≥1 medical claim for an emergency department visit or a hospitalization associated with an opioid overdose from July 2009 to June 2014 were defined as cases. Controls were selected using a nearest neighbor matching without replacement. The matched controls were selected on the basis of age, sex, and opioid prescription. One case was matched with three controls. Multivariate conditional logistic regression was used to compare risk factors. A total of 816 cases with 2,448 controls were included. Six factors were associated with opioid overdose: mean morphine dose equivalent (>50 mg/d; odds ratio [OR] = 1.986 [95% confidence interval [CI], 1.509-2.614]), methadone use (switching opioid to methadone vs. no methadone use; OR = 7.230 [95% CI, 2.346-22.286]), drug/alcohol abuse (OR = 3.104 [95% CI, 2.195-4.388]), other psychiatric illness (OR = 1.730 [95% CI, 1.307-2.291]), benzodiazepine use (OR = 2.005 [95% CI, 1.516-2.652]), and the number of pharmacies used by the beneficiary (≥4 pharmacies vs. 1 pharmacy; OR = 1.514 [95% CI, 1.003-2.286]). In conclusion, several factors are associated with opioid overdose. States and communities should ensure the availability of at-home intranasal naloxone for overdose rescue on the basis of the presence of risk factors. PERSPECTIVE: This article presents the risk factors of opioid overdose among the Colorado Medicaid population. On the basis of study findings, Colorado Medicaid is currently working with physicians, hospitals, and other health system stakeholders to continue to develop policies to identify and assist this subset of our population. One such policy will be to provide at-home intranasal naloxone for overdose rescue.


Assuntos
Overdose de Drogas/epidemiologia , Medicaid/estatística & dados numéricos , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Transtornos Relacionados ao Uso de Opioides/etiologia , Uso Indevido de Medicamentos sob Prescrição/estatística & dados numéricos , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Analgésicos Opioides/uso terapêutico , Estudos de Casos e Controles , Criança , Dor Crônica/tratamento farmacológico , Dor Crônica/epidemiologia , Dor Crônica/etiologia , Colorado/epidemiologia , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais , Estados Unidos/epidemiologia , Adulto Jovem
12.
Stud Health Technol Inform ; 201: 55-62, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24943525

RESUMO

The iTEAM goal is to prepare advanced practice nurses, physicians and pharmacists with the interprofessional (IP) core competencies (informatics, patient centric, quality-focused, evidence based care) to provide technology enhanced collaborative care by: offering technology enhanced learning opportunities through a required informatics course, advanced practice courses (team based experiences with both standardized and virtual patients) and team based clinical experiences including e-health experiences. The innovative features of iTEAM project will be achieved through use of social media strategies, a web accessible Electronic Health Records (EHRs) system, a Virtual Clinic/Hospital in Second Life, various e-health applications including traditional telehealth tools and consumer oriented tools such as patient portals, social media consumer groups and mobile health (m-health) applications for health and wellness functions. It builds upon the schools' rich history of IP education and includes clinical partners, such as the VA and other clinical sites focused on care for underserved patient populations.


Assuntos
Instrução por Computador/métodos , Registros Eletrônicos de Saúde/organização & administração , Internet/organização & administração , Relações Interprofissionais , Informática Médica/organização & administração , Telemedicina/organização & administração , Colorado , Currículo , Modelos Educacionais , Integração de Sistemas , Ensino/métodos
13.
Fam Med ; 46(5): 348-53, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24915477

RESUMO

BACKGROUND AND OBJECTIVES: Clinical pharmacists are a part of integrated health care teams and provide clinical medication recommendations for family physicians. On-site clinical pharmacy services are common in family medicine. This model may not be the most effective or efficient way to provide clinical pharmacy services in a small practice or in a remote location. The objectives of this study were to describe the development of an off-site clinical pharmacy service and to describe the 1-year clinical impact of this service. METHODS: The University of Colorado Park Meadows Family Medicine Clinic is located approximately 15 miles from the Anschutz Medical Campus. In July 2011, a clinical pharmacist implemented clinical pharmacy services with the goal of providing medication expertise primarily using an off-site model. The clinical pharmacist prospectively screened patients with appointments and provided medication recommendations in the electronic medical record for providers to consider at the patient appointment. RESULTS: For the first 12 months, the clinical pharmacist spent 118 hours providing the clinical pharmacy service. A total of 315 medication recommendations were made for 123 patients; 69.8% were implemented. Forty-nine vaccinations were administered, and 24 potentially dangerous major drug-drug interactions were identified and resolved. Thirty-one unnecessary high-cost drugs were discontinued, resulting in estimated annual savings of $52,215.36. CONCLUSIONS: Our data indicate that clinical pharmacy services can be implemented for smaller remote family clinics using an offsite model. Within this model, clinical pharmacy interventions optimized medication use, managed serious drug interactions, and resulted in cost avoidance.


Assuntos
Registros Eletrônicos de Saúde , Medicina de Família e Comunidade/organização & administração , Equipe de Assistência ao Paciente/organização & administração , Farmacêuticos/organização & administração , Papel Profissional , Custos e Análise de Custo , Medicina de Família e Comunidade/economia , Humanos , Equipe de Assistência ao Paciente/economia , Farmacêuticos/economia
14.
Int J Clin Pharm ; 33(4): 599-602, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21594590

RESUMO

This commentary identifies studies that have compared commercially available DI databases, and discusses improvements in study methodology that might better guide clinicians in selecting resources for their practice setting. We also provide suggestions for future direction of research in this area with an eye towards clinical decision support systems (CDSS). The body of comparative research of commercially available DI databases is small, and provides little value to the average clinician when making purchasing decisions. Transparency of study methodology would allow readers to choose a database that best fits their practice needs. Future research must consider how DI resources are imbedded within CDSS, such that the alerts generated by the CDSS are consistent with the primary DI workhorse of the practice site. Cohesion between CDSS and DI resources needs to be a consideration in future DI resource comparative research.


Assuntos
Bases de Dados Factuais/normas , Sistemas de Apoio a Decisões Clínicas/normas , Serviços de Informação sobre Medicamentos/normas , Quimioterapia Assistida por Computador/normas , Quimioterapia Assistida por Computador/métodos , Humanos
15.
Ann Pharmacother ; 43(11): 1802-8, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19826098

RESUMO

OBJECTIVE: To summarize the published clinical data on fospropofol, critically review the safety and efficacy information, and provide pertinent information for formulary review. DATA SOURCES: Data were collected from searches of MEDLINE (1966-June 30, 2009), EMBASE (1974-June 30, 2009), bibliographies of manuscripts, and www.fda.gov. Key search terms included fospropofol, Lusedra, Aquavan, sedative-hypnotic, and monitored anesthesia care. STUDY SELECTION AND DATA EXTRACTION: All Phase 1, Phase 2, and Phase 3 clinical trials studying the safety and efficacy of fospropofol were reviewed. DATA SYNTHESIS: Fospropofol is a water-soluble prodrug of propofol, a potent sedative-hypnotic agent. Propofol is highly lipophilic and is formulated in lipid-containing solvents, which have known disadvantages, including pain on injection, narrow therapeutic window with the potential to cause deep sedation, high lipid intake during long-term sedation, and risk of infection resulting from bacterial contamination. Due to its water solubility, fospropofol eliminates some of the known lipid emulsion-associated disadvantages of propofol and provides a more predictable peak onset of activity and more gradual recovery to a full state of consciousness. The pharmacokinetic and pharmacodynamic profiles of fospropofol make it an attractive agent for sedation for procedures of short duration. Unfortunately, the number of patients studied has been relatively small and the amount of safety data is limited. Of concern are reports of hypoxemia and hypotension; these reports are limited in number, but the episodes are serious and may require acute intervention. Although fospropofol holds promise for procedural sedation, due to limited safety data, the Food and Drug Administration has limited approval of fospropofol to monitored anesthesia care in patients undergoing diagnostic or therapeutic procedures. CONCLUSIONS: Fospropofol is a viable addition to the class of sedative-hypnotic agents due to the minimization of unwanted adverse effects of propofol and maintenance of a favorable pharmacokinetic profile facilitating sedation, anxiolysis, and rapid recovery. However, there are limited safety data to justify its use without the presence of dedicated anesthesia personnel.


Assuntos
Anestesia/tendências , Monitoramento de Medicamentos/tendências , Hipnóticos e Sedativos/uso terapêutico , Propofol/análogos & derivados , Anestesia/métodos , Ensaios Clínicos como Assunto/métodos , Ensaios Clínicos como Assunto/tendências , Monitoramento de Medicamentos/métodos , Humanos , Hipnóticos e Sedativos/química , Propofol/química , Propofol/uso terapêutico
16.
Mech Ageing Dev ; 129(4): 201-6, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18295300

RESUMO

Werner syndrome (WS) is an autosomal recessive progeroid syndrome caused by mutations in the Werner (Wrn) gene. WS patients have increased incidence of a number of chronic conditions including insulin resistance and type 2 diabetes. Since ingestion of foods that are high in fat and sugar is associated with increased incidence of diabetes, we examined if Wrn mutations might affect metabolic response to a diabetogenic diet. Four-month-old mice with a null mutation for the Wrn gene were fed a diet consisting of 36% fat (lard), 33% table sugar, and 20% protein plus balanced vitamins and minerals. Wrn null mice had significantly increased body weights, increased serum insulin levels, impaired glucose tolerance, and insulin resistance during 4 months of eating the diabetogenic diet. Diffuse fatty infiltration of the liver and pancreatic islet hyperplasia was characteristic morphological features. These observations suggest that Wrn null mice have impaired glucose homeostasis and fat metabolism, and may be a useful model to investigate metabolic conditions associated with aging.


Assuntos
Diabetes Mellitus/induzido quimicamente , Dieta , Hiperinsulinismo/metabolismo , Resistência à Insulina , RecQ Helicases/deficiência , Adiposidade , Ração Animal , Animais , Peso Corporal , Intolerância à Glucose/sangue , Hiperglicemia/sangue , Hiperinsulinismo/genética , Hipertrigliceridemia/sangue , Leptina/sangue , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , RecQ Helicases/genética , RecQ Helicases/metabolismo , Helicase da Síndrome de Werner
17.
J Lipid Res ; 43(4): 629-35, 2002 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11907146

RESUMO

Unlike macrophages, the hepatic parenchymal cells express cholesterol-7 alpha-hydroxylase (CYP7A1) which regulates the conversion of cholesterol into bile acids, the major quantitative pathway maintaining cholesterol homeostasis. We examined if CYP7A1 expression in RAW 264.7 macrophages could prevent the accumulation of cholesterol when they were incubated with acetyl-LDL. A single cell clone (designated as 7 alphaRAW cells) that stably expresses rat CYP7A1 displayed similar rates of growth as non-transfected RAW cells. The CYP7A1 enzymatic activity expressed by microsomes obtained from 7 alphaRAW cells was similar to that expressed by microsomes obtained from mouse liver. Incubating non-transfected RAW with increasing amounts of acetyl-LDL caused a parallel accumulation of cholesterol, whereas 7 alphaRAW cells displayed a complete resistance to cholesterol accumulation. 7 alphaRAW cells displayed increased expression of both ABCA1 mRNA (3.1-fold, P < 0.001) and ABCG1 mRNA (2.2-fold, P < 0.01), whereas the expression of scavenger receptor class A mRNA was unchanged. 7 alphaRAW cells also displayed small but significant increases in the rate of efflux of [(3)H]cholesterol to both delipidated apolipoprotein A1 and to HDL.Thus, CYP7A1 expression in RAW cultured macrophages prevented the accumulation of cholesterol from acetyl-LDL via both increased metabolism and efflux of cholesterol.


Assuntos
Moléculas de Adesão Celular , Colesterol 7-alfa-Hidroxilase/metabolismo , Colesterol/metabolismo , Hidroximetilglutaril-CoA Redutases/metabolismo , Lipoproteínas LDL/metabolismo , Macrófagos/metabolismo , Transportador 1 de Cassete de Ligação de ATP , Membro 1 da Subfamília G de Transportadores de Cassetes de Ligação de ATP , Transportadores de Cassetes de Ligação de ATP/genética , Transportadores de Cassetes de Ligação de ATP/metabolismo , Animais , Transporte Biológico , Divisão Celular , Sobrevivência Celular , Colesterol 7-alfa-Hidroxilase/genética , Ativação Enzimática , Expressão Gênica , Camundongos , RNA Mensageiro/biossíntese , Receptores de LDL/genética , Receptores de LDL/metabolismo , Receptores Depuradores , Receptores Depuradores Classe A , Transfecção
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