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1.
Ther Clin Risk Manag ; 19: 745-753, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37744558

RESUMEN

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.
Artículo en Inglés | MEDLINE | ID: mdl-36528493

RESUMEN

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.


Asunto(s)
Sobredosis de Droga , Sobredosis de Opiáceos , Trastornos Relacionados con Opioides , Consulta Remota , Estados Unidos , Humanos , Analgésicos Opioides/efectos adversos , Colorado/epidemiología , Sobredosis de Droga/epidemiología , Sobredosis de Droga/tratamiento farmacológico , Sobredosis de Opiáceos/tratamiento farmacológico , Trastornos Relacionados con Opioides/epidemiología , Trastornos Relacionados con Opioides/tratamiento farmacológico , Pautas de la Práctica en Medicina , Dolor/tratamiento farmacológico
3.
Am J Pharm Educ ; 86(3): 8556, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34301548

RESUMEN

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.


Asunto(s)
Educación en Farmacia , Farmacéuticos , Humanos , Grupo de Atención al Paciente , Rol Profesional
4.
Am J Pharm Educ ; 85(10): 8720, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34301582

RESUMEN

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.


Asunto(s)
Educación en Farmacia , Facultades de Farmacia , Atención a la Salud , Docentes de Farmacia , Humanos , Farmacéuticos , Rol Profesional
5.
Am J Pharm Educ ; 84(10): ajpe8199, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-33149338

RESUMEN

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.


Asunto(s)
Comités Consultivos , Prestación Integrada de Atención de Salud , Farmacéuticos , Comité Farmacéutico y Terapéutico , Atención Primaria de Salud , Rol Profesional , Facultades de Farmacia , Sociedades Farmacéuticas , Conducta Cooperativa , Humanos , Comunicación Interdisciplinaria , Liderazgo , Grupo de Atención al Paciente , Formulación de Políticas , Estados Unidos
6.
Am J Pharm Educ ; 82(7): 7148, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-30323400

RESUMEN

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.


Asunto(s)
Educación en Farmacia/métodos , Comités Consultivos , Informes Anuales como Asunto , Curriculum , Humanos , Facultades de Farmacia
7.
Am J Health Syst Pharm ; 75(13): 978-981, 2018 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-29941536

RESUMEN

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.


Asunto(s)
Administración del Tratamiento Farmacológico/organización & administración , Farmacéuticos/economía , Farmacéuticos/provisión & distribución , Atención Ambulatoria/economía , Atención Ambulatoria/organización & administración , Presión Sanguínea , LDL-Colesterol/sangre , Colorado , Centros Comunitarios de Salud/economía , Centros Comunitarios de Salud/organización & administración , Registros Electrónicos de Salud , Hemoglobina Glucada/análisis , Humanos , Área sin Atención Médica , Residencias en Farmacia , Sistemas de Atención de Punto , Apoyo a la Formación Profesional
8.
J Am Pharm Assoc (2003) ; 58(1): 113-116, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29290339

RESUMEN

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.


Asunto(s)
Servicios Comunitarios de Farmacia/legislación & jurisprudencia , Fertilización/efectos de los fármacos , Farmacéuticos/legislación & jurisprudencia , Actitud del Personal de Salud , Anticoncepción , Educación en Farmacia/legislación & jurisprudencia , Accesibilidad a los Servicios de Salud/legislación & jurisprudencia , Humanos , Rol Profesional
9.
BMC Pediatr ; 16(1): 155, 2016 09 13.
Artículo en Inglés | MEDLINE | ID: mdl-27623808

RESUMEN

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.


Asunto(s)
Recien Nacido Prematuro , Recién Nacido de muy Bajo Peso , Atención Perinatal/normas , Mejoramiento de la Calidad , Cordón Umbilical , Constricción , Femenino , Adhesión a Directriz/estadística & datos numéricos , Humanos , Recién Nacido , Análisis de Intención de Tratar , Masculino , Grupo de Atención al Paciente/normas , Grupo de Atención al Paciente/estadística & datos numéricos , Atención Perinatal/métodos , Atención Perinatal/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Mejoramiento de la Calidad/estadística & datos numéricos , Estudios Retrospectivos
10.
Stud Health Technol Inform ; 225: 307-13, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27332212

RESUMEN

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.


Asunto(s)
Enfermeras Practicantes/educación , Informática Aplicada a la Enfermería/educación , Competencia Clínica , Humanos , Participación del Paciente/métodos , Teleenfermería/educación , Teleenfermería/métodos , Estados Unidos
11.
J Pain ; 17(4): 436-43, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26721613

RESUMEN

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.


Asunto(s)
Sobredosis de Droga/epidemiología , Medicaid/estadística & datos numéricos , Trastornos Relacionados con Opioides/epidemiología , Trastornos Relacionados con Opioides/etiología , Mal Uso de Medicamentos de Venta con Receta/estadística & datos numéricos , Adolescente , Adulto , Distribución por Edad , Anciano , Anciano de 80 o más Años , Analgésicos Opioides/uso terapéutico , Estudios de Casos y Controles , Niño , Dolor Crónico/tratamiento farmacológico , Dolor Crónico/epidemiología , Dolor Crónico/etiología , Colorado/epidemiología , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Factores Sexuales , Estados Unidos/epidemiología , Adulto Joven
12.
Fam Med ; 46(5): 348-53, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24915477

RESUMEN

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.


Asunto(s)
Registros Electrónicos de Salud , Medicina Familiar y Comunitaria/organización & administración , Grupo de Atención al Paciente/organización & administración , Farmacéuticos/organización & administración , Rol Profesional , Costos y Análisis de Costo , Medicina Familiar y Comunitaria/economía , Humanos , Grupo de Atención al Paciente/economía , Farmacéuticos/economía
13.
Stud Health Technol Inform ; 201: 55-62, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24943525

RESUMEN

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.


Asunto(s)
Instrucción por Computador/métodos , Registros Electrónicos de Salud/organización & administración , Internet/organización & administración , Relaciones Interprofesionales , Informática Médica/organización & administración , Telemedicina/organización & administración , Colorado , Curriculum , Modelos Educacionales , Integración de Sistemas , Enseñanza/métodos
14.
Int J Clin Pharm ; 33(4): 599-602, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21594590

RESUMEN

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.


Asunto(s)
Bases de Datos Factuales/normas , Sistemas de Apoyo a Decisiones Clínicas/normas , Servicios de Información sobre Medicamentos/normas , Quimioterapia Asistida por Computador/normas , Quimioterapia Asistida por Computador/métodos , Humanos
15.
Ann Pharmacother ; 43(11): 1802-8, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19826098

RESUMEN

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.


Asunto(s)
Anestesia/tendencias , Monitoreo de Drogas/tendencias , Hipnóticos y Sedantes/uso terapéutico , Propofol/análogos & derivados , Anestesia/métodos , Ensayos Clínicos como Asunto/métodos , Ensayos Clínicos como Asunto/tendencias , Monitoreo de Drogas/métodos , Humanos , Hipnóticos y Sedantes/química , Propofol/química , Propofol/uso terapéutico
16.
Mech Ageing Dev ; 129(4): 201-6, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18295300

RESUMEN

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.


Asunto(s)
Diabetes Mellitus/inducido químicamente , Dieta , Hiperinsulinismo/metabolismo , Resistencia a la Insulina , RecQ Helicasas/deficiencia , Adiposidad , Alimentación Animal , Animales , Peso Corporal , Intolerancia a la Glucosa/sangre , Hiperglucemia/sangre , Hiperinsulinismo/genética , Hipertrigliceridemia/sangre , Leptina/sangre , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , RecQ Helicasas/genética , RecQ Helicasas/metabolismo , Helicasa del Síndrome de Werner
17.
J Lipid Res ; 43(4): 629-35, 2002 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-11907146

RESUMEN

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.


Asunto(s)
Moléculas de Adhesión Celular , Colesterol 7-alfa-Hidroxilasa/metabolismo , Colesterol/metabolismo , Hidroximetilglutaril-CoA Reductasas/metabolismo , Lipoproteínas LDL/metabolismo , Macrófagos/metabolismo , Transportador 1 de Casete de Unión a ATP , Transportador de Casetes de Unión a ATP, Subfamilia G, Miembro 1 , Transportadoras de Casetes de Unión a ATP/genética , Transportadoras de Casetes de Unión a ATP/metabolismo , Animales , Transporte Biológico , División Celular , Supervivencia Celular , Colesterol 7-alfa-Hidroxilasa/genética , Activación Enzimática , Expresión Génica , Ratones , ARN Mensajero/biosíntesis , Receptores de LDL/genética , Receptores de LDL/metabolismo , Receptores Depuradores , Receptores Depuradores de Clase A , Transfección
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