33 results on '"Massing MW"'
Search Results
2. Usefulness of Ventricular Premature Complexes to Predict Coronary Heart Disease Events and Mortality (from the Atherosclerosis Risk In Communities Cohort)
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Massing MW, Simpson RJ Jr, Rautaharju PM, Schreiner PJ, Crow R, and Heiss G
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- 2006
- Full Text
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3. Lipid management among coronary artery disease patients with diabetes mellitus or advanced age.
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Massing MW, Sueta CA, Chowdhury M, Biggs DP, Simpson RJ Jr., Massing, M W, Sueta, C A, Chowdhury, M, Biggs, D P, and Simpson, R J Jr
- Abstract
Aggressive lipid management is likely beneficial for coronary artery disease patients with diabetes mellitus or of advanced age. Nevertheless, a study of a large national sample of patients seen in ambulatory medical practices suggests pharmacologic undertreatment in these high-risk groups. [ABSTRACT FROM AUTHOR]
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- 2001
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4. A satisfaction survey of current medicines used for migraine therapy in China: is Chinese patent medicine effective compared with Western medicine for the acute treatment of migraine?
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Luo N, Qi W, Zhuang C, Di W, Lu Y, Huang Z, Sun Y, Zhang A, Huang X, Tao Y, Zhu Y, Li A, Jiang Z, Massing MW, and Fang Y
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- Adult, China, Data Collection, Drugs, Chinese Herbal standards, Female, Humans, Male, Analgesics therapeutic use, Drugs, Chinese Herbal therapeutic use, Migraine Disorders drug therapy, Patient Satisfaction
- Abstract
Objective: To investigate the patient satisfaction with medications commonly used for migraine therapy in patients seen in headache clinic in China with emphasis on the evaluation of Chinese patent medicine (CPM) in relieving acute migraine attack., Methods: Patients admitted at headache clinics in the neurological departments of four hospitals during April to October 2011 were enrolled in the investigation. The questionnaire was designed based on the validation of a diagnostic questionnaire for a population-based survey in China in 2009., Results: Among 219 eligible patients, 58% had used CPM at the acute attack of migraine while the guideline-recommended treatments were seldom used. However, patients using CPMs were less satisfied than those using Western Medicines (WMs) in either single medication groups or mixed medication groups (P < 0.05)., Conclusion: Fifty-eight percent of the eligible respondents in Guangdong and Guangxi Province had used CPM at the acute attack of migraine, but based on our data, the effect of CPM on treating migraine attack was poor with low satisfaction compared with WMs. However, many factors may bias or explain our findings. This suggests the need for accelerated research in understanding patient choice, treatment availability, and use of medications., (Wiley Periodicals, Inc.)
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- 2014
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5. A randomized, one-year clinical trial comparing the efficacy of topiramate, flunarizine, and a combination of flunarizine and topiramate in migraine prophylaxis.
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Luo N, Di W, Zhang A, Wang Y, Ding M, Qi W, Zhu Y, Massing MW, and Fang Y
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- Adolescent, Adult, Aged, Drug Therapy, Combination, Female, Follow-Up Studies, Fructose administration & dosage, Humans, Male, Middle Aged, Migraine Disorders epidemiology, Prospective Studies, Topiramate, Treatment Outcome, Young Adult, Flunarizine administration & dosage, Fructose analogs & derivatives, Migraine Disorders drug therapy, Migraine Disorders prevention & control
- Abstract
Objectives: The objective of this study was to observe the efficacy, safety, and side effects of a combination of flunarizine plus topiramate compared with either flunarizine and or toparamate alone for migraine prophylaxis., Methods: Out of 150 patients with migraine recruited into the study and randomly assigned to one of three conditions, 126 completed the trial in their group: flunarizine (39), topiramate (44), and flunarizine plus topiramate (43). Patient information was assessed at enrollment and at follow-up visits at the end of months 1-3, 6, 9, and 12. The primary measure of efficacy reduction in mean monthly migraine frequency of at least 50% as compared with baseline. Secondary efficacy parameters included reduction in mean monthly migraine days and severity of headache. Side effects were compared in the three groups by recording adverse reactions and weight changes., Results: The proportion whose monthly headache frequency decreased more than 50% was 66.7% (26/39) in the flunarizine group, 72.7% (32/44) in the topiramate group and 76.7% (33/43) in the combination group, respectively (P=0.593). The mean monthly days and severity of headache in the three groups also declined and was more significant in the flunarizine plus topiramate group than in the flunarizine group and the topiramate group (P<0.05). In the flunarizine group, the average weight change was 0.6kg. Topiramate was associated with a mean weight loss was of -0.9kg in the topiramate group and -0.2kg in the flunarizine plus topiramate group., Conclusion: Flunarizine, topiramate, and the combination of flunarizine with topiramate are all effective and have good tolerability in migraine prophylaxis. Adding topiramate to flunarizine may reduce the latter's impact on body weight., (Wiley Periodicals, Inc.)
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- 2012
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6. Neurosteroids and self-reported pain in veterans who served in the U.S. Military after September 11, 2001.
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Kilts JD, Tupler LA, Keefe FJ, Payne VM, Hamer RM, Naylor JC, Calnaido RP, Morey RA, Strauss JL, Parke G, Massing MW, Youssef NA, Shampine LJ, and Marx CE
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- Adult, Afghanistan, Brain Injuries complications, Dehydroepiandrosterone pharmacology, Female, Gas Chromatography-Mass Spectrometry, Humans, Linear Models, Male, Military Personnel, Pain Measurement, Pregnanolone blood, Smoking metabolism, United States, Veterans, Neurotransmitter Agents metabolism, Pain metabolism
- Abstract
Objective: Nearly half of Operation Enduring Freedom/Operation Iraqi Freedom veterans experience continued pain post-deployment. Several investigations report analgesic effects of allopregnanolone and other neurosteroids in animal models, but few data are currently available focusing on neurosteroids in clinical populations. Allopregnanolone positively modulates GABA(A) receptors and demonstrates pronounced analgesic and anxiolytic effects in rodents, yet studies examining the relationship between pain and allopregnanolone in humans are limited. We thus hypothesized that endogenous allopregnanolone and other neurosteroid levels may be negatively correlated with self-reported pain symptoms in humans., Design: We determined serum neurosteroid levels by gas chromatography/mass spectrometry (allopregnanolone, pregnenolone) or radioimmunoassay (dehydroepiandrosterone [DHEA], progesterone, DHEA sulfate [DHEAS]) in 90 male veterans who served in the U.S. military after September 11, 2001. Self-reported pain symptoms were assessed in four areas (low back pain, chest pain, muscle soreness, headache). Stepwise linear regression analyses were conducted to investigate the relationship between pain assessments and neurosteroids, with the inclusion of smoking, alcohol use, age, and history of traumatic brain injury as covariates., Setting: Durham VA Medical Center., Results: Allopregnanolone levels were inversely associated with low back pain (P=0.044) and chest pain (P=0.013), and DHEA levels were inversely associated with muscle soreness (P=0.024). DHEAS levels were positively associated with chest pain (P=0.001). Additionally, there was a positive association between traumatic brain injury and muscle soreness (P=0.002)., Conclusions: Neurosteroids may be relevant to the pathophysiology of self-reported pain symptoms in this veteran cohort, and could represent future pharmacological targets for pain disorders., (Wiley Periodicals, Inc.)
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- 2010
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7. Allopregnanolone levels are reduced in temporal cortex in patients with Alzheimer's disease compared to cognitively intact control subjects.
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Naylor JC, Kilts JD, Hulette CM, Steffens DC, Blazer DG, Ervin JF, Strauss JL, Allen TB, Massing MW, Payne VM, Youssef NA, Shampine LJ, and Marx CE
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- Adult, Aged, Aged, 80 and over, Alleles, Alzheimer Disease genetics, Alzheimer Disease metabolism, Apolipoprotein E4 genetics, Case-Control Studies, Cerebral Cortex chemistry, Cerebral Cortex metabolism, Chromatography, High Pressure Liquid, Cognition physiology, Female, Gas Chromatography-Mass Spectrometry, Humans, Male, Middle Aged, Models, Biological, Postmortem Changes, Pregnanolone metabolism, Temporal Lobe metabolism, Alzheimer Disease pathology, Pregnanolone analysis, Temporal Lobe chemistry
- Abstract
The neurosteroid allopregnanolone has pronounced neuroprotective actions, increases myelination, and enhances neurogenesis. Evidence suggests that allopregnanolone dysregulation may play a role in the pathophysiology of Alzheimer's disease (AD) and other neurodegenerative disorders. Our prior data demonstrate that allopregnanolone is reduced in prefrontal cortex in male patients with AD compared to male cognitively intact control subjects, and inversely correlated with neuropathological disease stage (Braak and Braak). We therefore determined if allopregnanolone levels are also reduced in AD patients compared to control subjects in temporal cortex, utilizing a larger set of samples from both male and female patients. In addition, we investigated if neurosteroids are altered in subjects who are APOE4 allele carriers. Allopregnanolone, dehydroepiandrosterone (DHEA), and pregnenolone levels were determined in temporal cortex postmortem samples by gas chromatography/mass spectrometry, preceded by high performance liquid chromatography (40 subjects with AD/41 cognitively intact control subjects). Allopregnanolone levels are reduced in temporal cortex in patients with AD (median 2.68 ng/g, n=40) compared to control subjects (median 5.64 ng/g, n=41), Mann-Whitney p=0.0002, and inversely correlated with Braak and Braak neuropathological disease stage (Spearman r=-0.38, p=0.0004). DHEA and pregnenolone are increased in patients with AD compared to control subjects. Patients carrying an APOE4 allele demonstrate reduced allopregnanolone levels in temporal cortex (Mann-Whitney p=0.04). In summary, our findings indicate that neurosteroids are altered in temporal cortex in patients with AD and related to neuropathological disease stage. In addition, the APOE4 allele is associated with reduced allopregnanolone levels. Neurosteroids may be relevant to the neurobiology and therapeutics of AD., (Published by Elsevier B.V.)
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- 2010
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8. Novel relationship of serum cholesterol with asthma and wheeze in the United States.
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Fessler MB, Massing MW, Spruell B, Jaramillo R, Draper DW, Madenspacher JH, Arbes SJ, Calatroni A, and Zeldin DC
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- Adult, Asthma blood, Body Mass Index, C-Reactive Protein analysis, Cross-Sectional Studies, Female, Humans, Logistic Models, Male, Multivariate Analysis, United States epidemiology, Asthma epidemiology, Cholesterol blood, Respiratory Sounds
- Abstract
Background: Cholesterol exerts complex effects on inflammation. There has been little investigation of whether serum cholesterol is associated with asthma, an inflammatory airways disease with great public health impact., Objective: To determine relationships between levels of 3 serum cholesterol measures (total cholesterol [TC], high-density lipoprotein cholesterol [HDL-C], and non-HDL-C) and asthma/wheeze in a sample representative of the US population., Methods: Cross-sectional study of 7005 participants age >or=6 years from the 2005 to 2006 National Health and Nutrition Examination Survey., Results: Serum TC and non-HDL-C were lower in patients with current asthma than in subjects without current asthma in the overall population (TC, 188.5 vs 192.2 mg/dL; non-HDL-C, 133.9 vs 137.7 mg/dL; P < .05 for both), whereas HDL-C was not different. Adjusted odds ratios (ORs) from multivariate logistic regression per 1-SD increase of TC and non-HDL-C for current asthma were 0.92 (95% CI, 0.86-0.98) and 0.91 (95% CI, 0.85-0.98), respectively. On racial/ethnic stratification, these relationships reflect marked reductions unique to Mexican Americans (MAs; TC, 171.4 vs 189.3 mg/dL; P < .001; OR, 0.62; 95% CI, 0.48-0.80; non-HDL-C, 119.8 vs 137.9 mg/dL; P < .001; OR, 0.62; 95% CI, 0.48-0.79). Among MAs, the adjusted OR for wheeze requiring medical attention was 0.57 (95% CI, 0.43-0.75) for TC and 0.53 (95% CI, 0.33-0.85) for non-HDL-C. Relationships between cholesterol and asthma/wheeze were independent of body mass index and serum C-reactive protein, and similar between atopic and nonatopic participants., Conclusion: Serum TC and non-HDL-C are inversely related to asthma in the US population, chiefly reflecting a relationship among MAs.
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- 2009
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9. After the collaborative is over: what sustains quality improvement initiatives in primary care practices?
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Bray P, Cummings DM, Wolf M, Massing MW, and Reaves J
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- Attitude of Health Personnel, Community Networks organization & administration, Cooperative Behavior, Humans, Interinstitutional Relations, Primary Health Care methods, Primary Health Care organization & administration, Program Evaluation, Chronic Disease therapy, Primary Health Care standards, Quality Assurance, Health Care methods
- Abstract
Background: Multisite quality improvement (QI) initiatives, often known as collaboratives, involving primary care practices such as community health centers, academic practices, and managed care groups have been reported. Yet relatively little is known about the sustainability of these QI initiatives after the initial project, and frequently its funding, has ended. A series of practice characteristics that constitute critical elements for QI sustainability activities, as described in a Sustainability Pyramid Model, were proposed., Methods: Approximately five months after the cessation of formalized activities of the final collaborative, 25 in-person interviews were conducted in 13 primary care practices that had participated in the three North Carolina Chronic Disease Management collaboratives, which initially involved 33 practices. Clinical outcomes were not considered., Findings: Twelve of the 13 practices stated that the collaborative work resulted in improvement in one or more process and/or outcome clinical measures and those improvements have been continued. Five of the 13 practices reported that sustaining improvements had been a challenge since the collaboratives ended. Content analysis of the interviews indicated that the practices variously cited the practice characteristics, as included in the Sustainability Pyramid Model: regular meetings to study practice population data, leadership commitment, availability of infrastructure/staff support, pursuit of additional funding, publicity, and strategic partnerships., Discussion: Although the improvement activities initiated during the collaborative were sustained, the process of developing and implementing new QI activities appeared to be more challenging for almost half of the practices. The practices that could accomplish this ongoing new QI process had "institutionalized" their QI strategies--a finding with important implications for sustainability.
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- 2009
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10. Percutaneous Coronary Intervention or Coronary Artery Bypass Grafting: Intervention in Older Persons with Acute Coronary Syndrome-Part II.
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Sheridan BC, Stearns SC, Massing MW, Stouffer GA, D'Arcy LP, and Carey TS
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This is Part II of a two-part article on treatment of acute coronary syndrome in the older population. Part I (published in the October issue of Clinical Geriatrics) analyzed the differential utilization of invasive therapies with respect to age and heart disease. Part II summarizes information from the literature on acute coronary syndrome outcomes from invasive treatments (percutaneous coronary interventions or coronary artery bypass grafting) among older persons.
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- 2008
11. Cerebrospinal fluid dehydroepiandrosterone levels are correlated with brain dehydroepiandrosterone levels, elevated in Alzheimer's disease, and related to neuropathological disease stage.
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Naylor JC, Hulette CM, Steffens DC, Shampine LJ, Ervin JF, Payne VM, Massing MW, Kilts JD, Strauss JL, Calhoun PS, Calnaido RP, Blazer DG, Lieberman JA, Madison RD, and Marx CE
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- Aged, Aged, 80 and over, Alzheimer Disease pathology, Dehydroepiandrosterone analysis, Humans, Pregnenolone cerebrospinal fluid, Alzheimer Disease cerebrospinal fluid, Dehydroepiandrosterone cerebrospinal fluid, Temporal Lobe chemistry
- Abstract
Objective: It is currently unknown whether cerebrospinal fluid (CSF) neurosteroid levels are related to brain neurosteroid levels in humans. CSF and brain dehydroepiandrosterone (DHEA) levels are elevated in patients with Alzheimer's disease (AD), but it is unclear whether CSF DHEA levels are correlated with brain DHEA levels within the same subject cohort. We therefore determined DHEA and pregnenolone levels in AD patients (n = 25) and cognitively intact control subjects (n = 16) in both CSF and temporal cortex., Design: DHEA and pregnenolone levels were determined by gas chromatography/mass spectrometry preceded by HPLC. Frozen CSF and temporal cortex specimens were provided by the Alzheimer's Disease Research Center at Duke University Medical Center. Data were analyzed by Mann-Whitney U test statistic and Spearman correlational analyses., Results: CSF DHEA levels are positively correlated with temporal cortex DHEA levels (r = 0.59, P < 0.0001) and neuropathological disease stage (Braak and Braak) (r = 0.42, P = 0.007). CSF pregnenolone levels are also positively correlated with temporal cortex pregnenolone levels (r = 0.57, P < 0.0001) and tend to be correlated with neuropathological disease stage (Braak) (r = 0.30, P = 0.06). CSF DHEA levels are elevated (P = 0.032), and pregnenolone levels tend to be elevated (P = 0.10) in patients with AD, compared with cognitively intact control subjects., Conclusions: These findings indicate that CSF DHEA and pregnenolone levels are correlated with temporal cortex brain levels of these neurosteroids and that CSF DHEA is elevated in AD and related to neuropathological disease stage. Neurosteroids may thus be relevant to the pathophysiology of AD.
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- 2008
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12. Role of data at the Carolinas Center for Medical Excellence.
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Massing MW and Schenck AP
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- Community Health Planning, Health Care Costs, Health Personnel education, Health Policy, Humans, North Carolina, Patient Care Management, South Carolina, Databases, Factual, Delivery of Health Care, Medical Informatics organization & administration, Quality of Health Care
- Published
- 2008
13. Trends in emergency Medicaid expenditures for recent and undocumented immigrants.
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DuBard CA and Massing MW
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- Adolescent, Adult, Child, Child, Preschool, Emergency Medical Services statistics & numerical data, Female, Health Expenditures statistics & numerical data, Hospitalization statistics & numerical data, Humans, Infant, Male, Middle Aged, North Carolina, United States, Emergency Medical Services economics, Emigration and Immigration, Health Expenditures trends, Health Services Accessibility, Medicaid
- Abstract
Context: Undocumented immigrants and legal immigrants who have been in the United States less than 5 years are excluded from Medicaid eligibility, with the exception of limited coverage for emergency conditions (Emergency Medicaid). New immigrant population growth has been rapid in recent years, but little is known about use of health services by this group or the conditions for which Emergency Medicaid coverage has been applied., Objective: To describe Emergency Medicaid use by recent and undocumented immigrants including patient characteristics, diagnoses, and recent spending trends in North Carolina, a state with a rapidly increasing population of undocumented immigrants., Design, Setting, and Patients: Descriptive analysis of North Carolina Medicaid administrative data for all claims reimbursed under Emergency Medicaid eligibility criteria 2001 through 2004 in North Carolina, a state with high immigration from Mexico and Latin America. Patients are recent and undocumented immigrants who meet categorical and income criteria for Medicaid coverage, but are excluded from full coverage due to legal status., Main Outcome Measures: Patient characteristics, hospitalizations, diagnoses, and Medicaid spending for emergency care., Results: A total of 48,391 individuals received services reimbursed under Emergency Medicaid during the 4-year period of this study. The patient population was 99% undocumented, 93% Hispanic, 95% female, and 89% in the 18- to 40-year age group. Total spending increased by 28% from 2001 through 2004, with more rapid spending increases among elderly (98%) and disabled (82%) patients. In 2004, childbirth and complications of pregnancy accounted for 82% of spending and 91% of hospitalizations. Injury, renal failure, gastrointestinal disease, and cardiovascular conditions were also prevalent., Conclusions: Childbirth and complications of pregnancy account for the majority of Emergency Medicaid spending for undocumented immigrants in North Carolina. Spending for elderly and disabled patients, however, is increasing at a faster rate. Among nonpregnant immigrants, injuries, other acute emergencies, and severe complications of chronic disease are major contributors to Emergency Medicaid use.
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- 2007
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14. New developments in proteomics.
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Massing MW, Misiurek J, Chadaram SR, Marx CE, and Madison R
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- Biomedical Technology trends, Humans, Mass Spectrometry trends, Genetic Markers, Genetic Predisposition to Disease, Genetic Testing trends, Proteomics trends
- Published
- 2007
15. The neurosteroid allopregnanolone is reduced in prefrontal cortex in Alzheimer's disease.
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Marx CE, Trost WT, Shampine LJ, Stevens RD, Hulette CM, Steffens DC, Ervin JF, Butterfield MI, Blazer DG, Massing MW, and Lieberman JA
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- Aged, Alzheimer Disease pathology, Biomarkers, Chromatography, High Pressure Liquid, Dehydroepiandrosterone metabolism, Disease Progression, Gas Chromatography-Mass Spectrometry, Humans, Male, Pregnenolone metabolism, Alzheimer Disease metabolism, Prefrontal Cortex metabolism, Pregnanolone metabolism
- Abstract
Background: Few data are currently available investigating neurosteroids (NS) in Alzheimer's disease (AD). The NS allopregnanolone may be decreased in serum and plasma in patients with AD, but it is unclear if allopregnanolone is also reduced in brain. Because a number of NS exhibit neuroprotective effects and impact cognitive performance in rodent models, these molecules may be relevant to the pathophysiology of neurodegenerative disorders. We therefore investigated prefrontal cortex (PFC) NS levels in AD., Methods: Neurosteroid levels (allopregnanolone, pregnenolone, dehydroepiandrosterone [DHEA]) were determined in postmortem PFC in 14 male subjects with AD and 15 cognitively intact male control subjects by gas chromatography/mass spectrometry preceded by high-performance liquid chromatography purification., Results: Subjects with AD exhibit significant reductions in allopregnanolone compared with cognitively intact control subjects (median levels = 2.50 ng/g vs. 5.59 ng/g, respectively; p = .02). Allopregnanolone levels are inversely correlated with neuropathological disease stage (Braak), r = -.49, p = .007. Median DHEA levels are elevated in subjects with AD (p = .01)., Conclusions: Subjects with AD demonstrate significant reductions in PFC allopregnanolone levels, a finding that may be relevant to neuropathological disease stage severity. Neurosteroids may have utility as candidate biomarkers in AD.
- Published
- 2006
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16. Clozapine markedly elevates pregnenolone in rat hippocampus, cerebral cortex, and serum: candidate mechanism for superior efficacy?
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Marx CE, Shampine LJ, Duncan GE, VanDoren MJ, Grobin AC, Massing MW, Madison RD, Bradford DW, Butterfield MI, Lieberman JA, and Morrow AL
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- Adrenalectomy, Animals, Benzodiazepines pharmacology, Chromatography, High Pressure Liquid, Dose-Response Relationship, Drug, Male, Olanzapine, Pregnenolone blood, Rats, Rats, Sprague-Dawley, Stimulation, Chemical, Antipsychotic Agents pharmacology, Cerebral Cortex metabolism, Clozapine pharmacology, Hippocampus metabolism, Pregnenolone metabolism
- Abstract
Clozapine demonstrates superior efficacy in patients with schizophrenia, but the precise mechanisms contributing to this clinical advantage are not clear. Clozapine and olanzapine increase the GABAergic neuroactive steroid (NS) allopregnanolone, and it has been hypothesized that NS induction may contribute to the therapeutic actions of these agents. Pregnenolone administration improves learning and memory in rodent models, and decreases in this NS have been associated with depressive symptoms in humans. These pregnenolone characteristics may be relevant to the actions of antipsychotics. We therefore investigated potential pregnenolone alterations in rat hippocampus and cerebral cortex following clozapine, olanzapine, and other second generation agents as a candidate NS mechanism contributing to antipsychotic efficacy. In the first set of experiments, intact, adrenalectomized, and sham-operated male rats received vehicle or clozapine (20 mg/kg) IP. In the second set, male rats received vehicle, olanzapine (5 mg/kg), quetiapine (20 mg/kg), ziprasidone (10 mg/kg) or aripiprazole (5 mg/kg) IP. Pregnenolone levels were determined by gas chromatography/mass spectrometry. Clozapine markedly elevates pregnenolone in rat hippocampus, cerebral cortex, and serum; hippocampal levels were strongly correlated with serum levels (r=0.987). Olanzapine also elevates pregnenolone levels, but to a lesser degree than clozapine. Pregnenolone induction may contribute to the clinical actions of clozapine and olanzapine.
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- 2006
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17. Olanzapine and fluoxetine administration and coadministration increase rat hippocampal pregnenolone, allopregnanolone and peripheral deoxycorticosterone: implications for therapeutic actions.
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Marx CE, Shampine LJ, Khisti RT, Trost WT, Bradford DW, Grobin AC, Massing MW, Madison RD, Butterfield MI, Lieberman JA, and Morrow AL
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- Animals, Benzodiazepines pharmacology, Chromatography, High Pressure Liquid, Corticosterone metabolism, Desoxycorticosterone analogs & derivatives, Desoxycorticosterone pharmacology, Dose-Response Relationship, Drug, Drug Synergism, Gas Chromatography-Mass Spectrometry, Hippocampus drug effects, Male, Olanzapine, Radioimmunoassay, Rats, Rats, Sprague-Dawley, Antipsychotic Agents pharmacology, Desoxycorticosterone metabolism, Fluoxetine pharmacology, Hippocampus metabolism, Pregnanolone metabolism, Pregnenolone metabolism, Selective Serotonin Reuptake Inhibitors pharmacology
- Abstract
Olanzapine and fluoxetine elevate the GABAergic neuroactive steroid allopregnanolone to physiologically relevant concentrations in rodent cerebral cortex. It is unknown if these agents also alter pregnenolone or deoxycorticosterone. Since olanzapine and fluoxetine in combination have clinical utility and may demonstrate synergistic effects, we investigated neuroactive steroid alterations following olanzapine, fluoxetine or coadministration. Male rats received IP vehicle, olanzapine, fluoxetine or the combination of both agents in higher-dose (0, 10, 20 or 10/20 mg/kg, respectively) and lower-dose (0, 5, 10 or 5/10 mg/kg, respectively) experiments. Pregnenolone and allopregnanolone levels in hippocampus were determined by gas chromatography/mass spectrometry. Peripheral deoxycorticosterone and other steroid levels were determined by radioimmunoassay. Olanzapine, fluoxetine or the combination increased hippocampal pregnenolone and serum deoxycorticosterone in both higher- and lower-dose experiments, and elevated hippocampal allopregnanolone in higher-dose conditions. No synergistic effects on pregnenolone or allopregnanolone were observed following olanzapine and fluoxetine coadministration compared to either compound alone. Pregnenolone and its sulfate enhance learning and memory in rodent models, and therefore pregnenolone elevations may be relevant to cognitive changes in psychotic and affective disorders. Since pregnenolone decreases have been linked to depression, it is possible that olanzapine- and fluoxetine-induced pregnenolone elevations may contribute to the antidepressant actions of these agents.
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- 2006
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18. Feasibility of a primary care intervention to decrease oral antibiotics for acute upper respiratory tract infections: A pilot study.
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Kelley M, Massing MW, Young J, Rogers A, Taylor R, and Weiser R
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- Administration, Oral, Adolescent, Adult, Drug Resistance, Feasibility Studies, Female, Humans, Male, Medicaid, Middle Aged, Pilot Projects, Anti-Bacterial Agents administration & dosage, Patient Education as Topic methods, Primary Health Care methods, Respiratory Tract Infections drug therapy
- Abstract
Background: Antimicrobial resistance in common respiratory tract pathogens is a growing public health threat, especially in the southeastern United States. The excessive use of antibiotics for common infections is a major contributing factor in the emergence of antibiotic resistance. We report results from a multi-site outpatient pilot project in North Carolina to reduce antibiotic prescriptions for acute nonbacterial upper respiratory tract infections (URIs)., Methods: Primary care practices were provided education and symptom therapy kits for patients with URIs, as an alternative to antibiotics, in a project to reduce the overuse of antimicrobial therapy The feasibility of this approach was evaluated with interviews and surveys. A methodology for claims-based evaluation of intervention efficacy in reduction of antibiotics use was developed as part of this project., Results: Of eight contacted practices, four agreed to participate and three participated fully. Physicians reported that symptom therapy kits were useful for patients with URIs and resulted in a meaningful change in antibiotic prescribing behaviors. A claims-based approach is a feasible and promising method to evaluate efficacy in subsequent post-pilot large-scale implementations., Limitations: Due to the small number of outpatient practices and the lack of controls in this pilot study, the efficacy of the intervention in reducing antibiotic use could not be determined., Conclusions: Education combined with symptom therapy kits as an alternative to oral antibiotics is a feasible intervention that warrants additional studies to evaluate the efficacy of this approach in the reduction of antibiotic use for URIs.
- Published
- 2006
19. Neuroactive steroids, negative affect, and nicotine dependence severity in male smokers.
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Marx CE, Trost WT, Shampine L, Behm FM, Giordano LA, Massing MW, and Rose JE
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- Adult, Affect, Cotinine analysis, Estradiol blood, Humans, Male, Saliva chemistry, Smoking blood, Androstenes blood, Pregnanes blood, Tobacco Use Disorder blood
- Abstract
Rationale: Nicotine administration alters neuroactive steroids in rodent models, and serum levels of the neuroactive steroid DHEAS (dehydroepiandrosterone sulfate) appear to be higher in smokers. These molecules may be relevant to tobacco addiction and affective symptoms., Objectives: This study aims to investigate DHEAS, allopregnanolone, pregnenolone, and other steroids in male smokers to determine potential associations with nicotine dependence severity and negative affect., Materials and Methods: Allopregnanolone and pregnenolone serum levels were determined by gas chromatography/mass spectrometry, while DHEAS and other steroid levels were determined by radioimmunoassay in 28 male smokers. Correlational analyses were performed to determine potential associations with rating measures, including the Fagerstrom Test for Nicotine Dependence (FTND), the addiction subscale of the Ikard Smoking Motivation Questionnaire (ISMQ), the craving item on the Reasons to Smoke (RTS) Questionnaire, and the negative affect and craving subscales of the Shiffman-Jarvik Withdrawal Questionnaire., Results: DHEAS levels were inversely correlated with the negative affect subscale of the Shiffman-Jarvik Withdrawal Questionnaire (r=-0.60, p=0.002) and the RTS craving item (r=-0.43, p=0.03), and tended to be inversely correlated with the FTND scores (r=-0.38, p=0.067) and the ISMQ addiction subscale (r=-0.38, p=0.059), adjusting for age. Allopregnanolone levels were positively correlated with cotinine levels (r=0.57, p=0.006); pregnenolone levels tended to be positively correlated with cotinine levels (r=0.40, p=0.066)., Conclusions: DHEAS levels were inversely correlated with negative affect and craving measures, and may predict nicotine dependence severity. Allopregnanolone levels were positively correlated with cotinine levels, suggesting that this neuroactive steroid may be upregulated in smokers. Neuroactive steroids may represent novel smoking cessation agents.
- Published
- 2006
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20. Neuroactive steroids are altered in schizophrenia and bipolar disorder: relevance to pathophysiology and therapeutics.
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Marx CE, Stevens RD, Shampine LJ, Uzunova V, Trost WT, Butterfield MI, Massing MW, Hamer RM, Morrow AL, and Lieberman JA
- Subjects
- Analysis of Variance, Bipolar Disorder pathology, Brain pathology, Case-Control Studies, Chromatography, High Pressure Liquid methods, Depression metabolism, Depression pathology, Female, Gas Chromatography-Mass Spectrometry methods, Humans, Male, Models, Molecular, Postmortem Changes, Schizophrenia pathology, Sex Factors, Steroids classification, Bipolar Disorder metabolism, Brain metabolism, Schizophrenia metabolism, Steroids metabolism
- Abstract
Evidence suggests that neuroactive steroids may be candidate modulators of schizophrenia pathophysiology and therapeutics. We therefore investigated neuroactive steroid levels in post-mortem brain tissue from subjects with schizophrenia, bipolar disorder, nonpsychotic depression, and control subjects to determine if neuroactive steroids are altered in these disorders. Posterior cingulate and parietal cortex tissue from the Stanley Foundation Neuropathology Consortium collection was analyzed for neuroactive steroids by negative ion chemical ionization gas chromatography/mass spectrometry preceded by high-performance liquid chromatography. Subjects with schizophrenia, bipolar disorder, nonpsychotic depression, and control subjects were group matched for age, sex, ethnicity, brain pH, and post-mortem interval (n = 14-15 per group, 59-60 subjects total). Statistical analyses were performed by ANOVA with post-hoc Dunnett tests on log transformed neuroactive steroid levels. Pregnenolone and allopregnanolone were present in human post-mortem brain tissue at considerably higher concentrations than typically observed in serum or plasma. Pregnenolone and dehydroepiandrosterone levels were higher in subjects with schizophrenia and bipolar disorder compared to control subjects in both posterior cingulate and parietal cortex. Allopregnanolone levels tended to be decreased in parietal cortex in subjects with schizophrenia compared to control subjects. Neuroactive steroids are present in human post-mortem brain tissue at physiologically relevant concentrations and altered in subjects with schizophrenia and bipolar disorder. A number of neuroactive steroids act at inhibitory GABA(A) and excitatory NMDA receptors and demonstrate neuroprotective and neurotrophic effects. Neuroactive steroids may therefore be candidate modulators of the pathophysiology of schizophrenia and bipolar disorder, and relevant to the treatment of these disorders.
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- 2006
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21. Enhancing quality of heart failure care in managed Medicare and Medicaid in North Carolina: results of the North Carolina Achieving Cardiac Excellence (NC ACE) Project.
- Author
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Goff DC Jr, Massing MW, Bertoni AG, Davis J, Ambrosius WT, McArdle J, Duren-Winfield V, Sueta CA, and Croft JB
- Subjects
- Adult, Aged, Female, Guideline Adherence, Humans, Male, Medical Audit, Middle Aged, North Carolina, Adrenergic beta-Antagonists therapeutic use, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Drug Utilization Review, Heart Failure drug therapy, Managed Care Programs standards, Medicaid standards, Medicare standards, Quality Assurance, Health Care methods
- Abstract
Objectives: To evaluate an intervention to improve the quality of care of patients with heart failure in managed Medicare and Medicaid plans in North Carolina., Background: Utilization of angiotensin-converting enzyme inhibitors (ACE-I) and beta-adrenergic receptor blockers (BB) in heart failure (HF) patients remains suboptimal despite evidence-based guidelines supporting their use., Methods: Managed care plans identified adult patients with HF during 2000 (preintervention) and from July 1, 2001, through June 30, 2002 (postintervention). Outpatient medical records were reviewed to obtain data regarding type of heart failure, demographics, comorbidities, and therapies. The intervention consisted of guideline summary dissemination, performance audit with feedback, patient-specific chart reminders, and patient activation mailings., Results: We sampled 1613 patients from 5 plans during the preintervention period and 1528 patients during the postintervention period. Assessment of left ventricular function (LVF) increased from 88.2% to 92.5% of patients (P < .0001). Among patients with moderate to severe left ventricular systolic dysfunction, there was no substantive change in treatment with ACE-I or vasodilators, whereas, appropriate treatment with BB increased from 48.3% (with another 11.9% with documented contraindications) to 67.9% (with another 7.5% with documented contraindications). The quality gap decreased from 39.8% to 24.6% (P < .0001)., Conclusion: LVF assessment improved despite high preintervention rates. Treatment rates with ACE-I and vasodilators remained high, but did not improve. Treatment rates with BB improved substantially translating into a significant public health benefit. Health-care payers should consider development of financial incentives to encourage collaborative quality improvement programs.
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- 2005
- Full Text
- View/download PDF
22. Managed care patients with heart failure: spectrum of ventricular dysfunction and predictors of medication utilization.
- Author
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Sueta CA, Bertoni AG, Massing MW, McArdle J, Duren-Winfield V, Davis J, Croft JB, and Goff DC Jr
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Aged, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Comorbidity, Diuretics therapeutic use, Female, Humans, Logistic Models, Male, Medicaid statistics & numerical data, Medicare statistics & numerical data, Middle Aged, North Carolina epidemiology, Spironolactone therapeutic use, Systole physiology, United States, Heart Failure drug therapy, Heart Failure physiopathology, Managed Care Programs statistics & numerical data, Ventricular Dysfunction, Left epidemiology
- Abstract
Background: Heart failure (HF) is a common clinical syndrome resulting in high morbidity and mortality. We examined the spectrum of ventricular dysfunction, and investigated the predictors of angiotensin-converting enzyme (ACE) inhibitor, beta-blocker, and spironolactone prescription in 1613 managed care patients with HF., Methods and Results: The diagnosis of HF was made by a HF discharge diagnosis or at least 3 physician encounters with a HF diagnosis during 2000. Logistic regression was used to identify predictors of medication prescription. Preserved systolic function was documented in 37%, moderate-severe systolic dysfunction in 31%, mild systolic in 14%, and 18% had inadequate documentation. The mean age was 69 years, 58% were women, 24% African American, and 60% were Medicare patients. Patients without HF type documented were the least aggressively treated. Coronary artery disease, hypertension, and diabetes predicted increased utilization of ACE inhibitor and beta-blocker therapies. History of nephropathy was associated with less ACE inhibitor prescription. Advancing age predicted less utilization of beta-blockers and spironolactone. Neither ethnicity nor gender influenced medication prescription., Conclusion: Preserved left ventricular function was common. Documentation of significant systolic dysfunction was associated with improved quality of care. Interventions to encourage documentation of HF type and further study of HF with preserved systolic function are warranted.
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- 2005
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23. Disparities in lipid management for African Americans and Caucasians with coronary artery disease: a national cross-sectional study.
- Author
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Massing MW, Foley KA, Carter-Edwards L, Sueta CA, Alexander CM, and Simpson RJ Jr
- Subjects
- Adult, Aged, Aged, 80 and over, Coronary Artery Disease ethnology, Cross-Sectional Studies, Female, Humans, Hyperlipidemias complications, Male, Middle Aged, Practice Patterns, Physicians', Regression Analysis, Black or African American, Coronary Artery Disease complications, Hyperlipidemias drug therapy, Hyperlipidemias ethnology, Hypolipidemic Agents therapeutic use, White People
- Abstract
Background: Individuals with coronary artery disease are at high risk for adverse health outcomes. This risk can be diminished by aggressive lipid management, but adherence to lipid management guidelines is far from ideal and substantial racial disparities in care have been reported. Lipid treatment and goal attainment information is not readily available for large patient populations seen in the fee-for-service setting. As a result, national programs to improve lipid management in this setting may focus on lipid testing as an indicator of lipid management. We describe the detection, treatment, and control of dyslipdemia for African Americans and Caucasians with coronary artery disease to evaluate whether public health programs focusing on lipid testing can eliminate racial disparities in lipid management., Methods: Physicians and medical practices with high numbers of prescriptions for coronary artery disease medications were invited to participate in the Quality Assurance Program. Medical records were reviewed from a random sample of patients with coronary artery disease seen from 1995 through 1998. Data related to the detection, treatment, and control of dyslipidemia were abstracted from the medical record and evaluated in cross-sectional stratified and logistic regression analyses using generalized estimation equations., Results: Data from the medical records of 1,046 African Americans and 22,077 Caucasians seen in outpatient medical practices in 23 states were analyzed. African-American patients were younger, more likely to be women and to have diabetes, heart failure, and hypertension. The low density lipoprotein cholesterol (LDL-C) testing rate for Caucasian men was over 1.4 times higher than that for African-American women and about 1.3 times higher than that for African-American men. Almost 60% of tested Caucasian men and less than half of tested African Americans were prescribed lipid-lowering drugs. Tested and treated Caucasian men had the highest LDL-C goal attainment (35%) and African-American men the lowest (21%)., Conclusions: Although increased lipid testing is clearly needed for African Americans, improvements in treatment and control are also necessary to eliminate racial disparities in lipid management. Disparities in treatment and goal attainment must be better understood and reflected in policy to improve the health of underserved populations.
- Published
- 2004
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- View/download PDF
24. Income, income inequality, and cardiovascular disease mortality: relations among county populations of the United States, 1985 to 1994.
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Massing MW, Rosamond WD, Wing SB, Suchindran CM, Kaplan BH, and Tyroler HA
- Subjects
- Adult, Aged, Cross-Sectional Studies, Demography, Female, Humans, Male, Middle Aged, Time Factors, United States epidemiology, Cardiovascular Diseases mortality, Income statistics & numerical data, Poverty statistics & numerical data
- Abstract
Objectives: Despite the major contribution of cardiovascular disease (CVD) to total mortality, and reports demonstrating strong relations between income and CVD, the joint relations of population-level income and income inequality with CVD mortality are not well described. This study was undertaken to describe relations among population-level income, income equality, and mortality due to cardiovascular disease, coronary heart disease, and stroke., Methods: County income distributions were determined from 1990 census data, and CVD mortality rates were obtained from the Compressed Mortality File. Relations among income, income inequality, and CVD mortality were examined in stratified and Poisson regression analyses., Results: County income was inversely related and income inequality was directly related to CVD, coronary heart disease, and stroke mortality. Relations were strongest for stroke. Relations of stroke mortality with income inequality were strongest in low-income populations., Conclusions: The CVD mortality experiences of county populations are related to both income and income distribution in a complex, disease-dependent manner. The authors' findings are especially relevant to the Southeast, a region of high income inequality, low income, and high stroke mortality.
- Published
- 2004
- Full Text
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25. Quality of heart failure care in managed Medicare and Medicaid patients in North Carolina.
- Author
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Bertoni AG, Duren-Winfield V, Ambrosius WT, McArdle J, Sueta CA, Massing MW, Peacock S, Davis J, Croft JB, and Goff DC Jr
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Adult, Aged, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Female, Guideline Adherence, Heart Failure etiology, Humans, Male, Medical Records, Middle Aged, North Carolina epidemiology, Retrospective Studies, Total Quality Management, Heart Failure drug therapy, Heart Failure epidemiology, Managed Care Programs standards, Medicaid standards, Medicare standards, Quality Assurance, Health Care
- Abstract
Use of angiotensin-converting enzyme (ACE) inhibitors and beta-adrenergic receptor blockers in patients with heart failure (HF) remains low despite the results of clinical trials and evidence-based guidelines that support their use. The quality of HF care in managed Medicare and Medicaid programs in North Carolina participating in a HF quality improvement program was assessed. Managed care plans identified adult patients with 1 inpatient or 3 outpatient claims for HF during 2000. A stratified random sample of 971 Medicare and 642 Medicaid patients' outpatient medical records from 5 plans were reviewed by trained nurse abstractors to obtain data regarding type of HF, demographics, comorbidities, and therapies. Left ventricular function assessment was performed in 88% of patients. Among 494 patients with systolic dysfunction, 86% were appropriately treated with respect to ACE inhibitors (73% prescribed, 13% had a documented contraindication). In contrast, beta-blocker therapy was appropriate in 61% (49% prescribed, 12% contraindication). There were no significant differences in drug use by insurance, gender, race, or age. Ventricular function assessment and ACE inhibitor prescription rates are higher than beta-blocker prescription rates among Medicare and Medicaid managed care patients in North Carolina. Opportunities for improvement remain, particularly for beta-blocker use.
- Published
- 2004
- Full Text
- View/download PDF
26. Heart failure prevalence, incidence, and mortality in the elderly with diabetes.
- Author
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Bertoni AG, Hundley WG, Massing MW, Bonds DE, Burke GL, and Goff DC Jr
- Subjects
- Aged, Aged, 80 and over, Cohort Studies, Diabetes Mellitus mortality, Diabetic Angiopathies mortality, Diabetic Nephropathies epidemiology, Female, Heart Diseases epidemiology, Heart Failure mortality, Humans, Hypertension epidemiology, Incidence, Kidney Failure, Chronic epidemiology, Male, Middle Aged, Prevalence, Racial Groups, United States epidemiology, Diabetes Mellitus epidemiology, Diabetic Angiopathies epidemiology, Heart Failure epidemiology
- Abstract
Objective: The goal of this study was to determine heart failure prevalence and incidence rates, subsequent mortality, and risk factors for heart failure among older populations in Medicare with diabetes., Research Design and Methods: We used a national 5% sample of Medicare claims from 1994 to 1999 to perform a population-based, nonconcurrent cohort study in 151,738 beneficiaries with diabetes who were age > or =65 years, not in managed care, and were alive on 1 January 1995. Prevalent heart failure was defined as a diagnosis of heart failure in 1994; incident heart failure was defined as a new diagnosis in 1995-1999 among those without prevalent heart failure. Mortality was assessed through 31 December 1999., Results: Heart failure was prevalent in 22.3% in 1994. Among individuals without heart failure in 1994, the heart failure incidence rate was 12.6 per 100 person-years (95% CI 12.5-12.7 per 100 person-years). Incidence was similar by sex and race and increased significantly with age and diabetes-related comorbidities. The adjusted hazard of incident heart failure increased for individuals with the following: metabolic complications of diabetes (a proxy for poor control and/or severity) (hazards ratio 1.23, 95% CI 1.18-1.29), ischemic heart disease (1.74, 1.70-1.79), nephropathy (1.55, 1.45-1.67), and peripheral vascular disease (1.35, 1.31-1.39). Over 60 months, incident heart failure among older adults with diabetes was associated with high mortality-32.7 per 100 person-years compared with 3.7 per 100 person-years among those with diabetes who remained heart failure free., Conclusions: These data demonstrate alarmingly high prevalence, incidence, and mortality for heart failure in individuals with diabetes. Prevention of heart failure should be a research and clinical priority.
- Published
- 2004
- Full Text
- View/download PDF
27. Population implications of changes in lipid management in patients with coronary heart disease.
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Foley KA, Massing MW, Simpson RJ Jr, Alexander CM, and Markson LE
- Subjects
- Adult, Algorithms, Coronary Disease epidemiology, Female, Humans, Male, Outcome and Process Assessment, Health Care, United States epidemiology, Cholesterol, LDL blood, Coronary Disease blood, Coronary Disease drug therapy, Lipids blood
- Abstract
Pharmacologic treatment and goal attainment rates from published literature indicate that lipid management has generally improved for patients with coronary heart disease. The population implications of these changes in lipid management are examined, suggesting that the challenge of lipid management may be shifting from a problem of no treatment to one of undertreatment.
- Published
- 2004
- Full Text
- View/download PDF
28. Lipid testing among patients with diabetes who receive diabetes care from primary care physicians.
- Author
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Massing MW, Henley NS, Carter-Edwards L, Schenck AP, and Simpson RJ Jr
- Subjects
- Age Factors, Aged, Black People, Cause of Death, Comorbidity, Diabetes Mellitus mortality, Diabetes Mellitus therapy, Family Practice, Glycated Hemoglobin analysis, Humans, Medicare, North Carolina, Survival Analysis, Time Factors, United States, White People, Black or African American, Diabetes Mellitus blood, Lipids blood
- Abstract
Objective: To identify factors related to lipid testing among patients with diabetes who receive diabetes care from primary care physicians., Research Design and Methods: North Carolina Medicare claims were used to identify individuals with diabetes who received diabetes care from primary care physicians. Lipid testing was related to sociodemographic characteristics, comorbid conditions, physician specialty, and mortality., Results: Based on Medicare claims from July 1997 through June 1999, 13,660 diabetic North Carolina residents with Medicare, 65-75 years of age, had received HbA(1c) testing from a single primary care physician during at least three of four consecutive 6-month time intervals. During these 2 years, 31% had no lipid profile and 24% had only one lipid profile. Caucasians were 1.6 times more likely than African Americans to receive lipid profiles. Patients not receiving state Medicare assistance were 1.4 times more likely to have a lipid profile than the presumably lower-income patients receiving assistance. Patients with stroke and heart failure were less likely to receive lipid profiles. Those with no lipid profile were almost twice as likely to die from cardiovascular disease than those with at least two lipid profiles., Conclusions: Adherence to lipid testing recommendations by primary care physicians for elderly patients with diabetes has much room for improvement. The most vulnerable patients (African Americans, the economically disadvantaged, and the medically complex) are the least likely to receive lipid testing.
- Published
- 2003
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- View/download PDF
29. Trends in lipid management among patients with coronary artery disease: has diabetes received the attention it deserves?
- Author
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Massing MW, Foley KA, Sueta CA, Chowdhury M, Biggs DP, Alexander CM, and Simpson RJ Jr
- Subjects
- Aged, Cholesterol, HDL blood, Cholesterol, LDL blood, Coronary Disease drug therapy, Diabetic Angiopathies drug therapy, Female, Geography, Humans, Male, Retrospective Studies, Self Care, Coronary Disease blood, Diabetic Angiopathies blood, Hypolipidemic Agents therapeutic use, Lipids blood
- Abstract
Objective: To examine lipid management trends for coronary artery disease (CAD) patients with and without diabetes in order to determine whether those with diabetes are beginning to receive aggressive lipid management consistent with their elevated risk., Research Design and Methods: We used outpatient medical record data from 47,813 CAD patients seen at 295 medical practices participating in the Quality Assurance Program II between 1996 and 1998. Lipid testing rates, lipid treatment rates, and serum lipid concentrations are described for CAD patients with and without diabetes within strata of office visit date., Results: Lipid testing and treatment rates increased and mean lipid levels decreased markedly over time. Those with diabetes were 26% less likely to have a lipid profile and 17% less likely to receive a lipid-lowering medication than their nondiabetic counterparts, and this disparity did not diminish over time. Among treated patients, mean non-HDL cholesterol (non-HDL-C) and LDL cholesterol (LDL-C) declined less rapidly over time for patients with than without diabetes., Conclusions: Although impressive progress was made in the outpatient lipid management of CAD patients, lipid management for CAD patients with diabetes improved no more rapidly, and in some cases less rapidly, than for nondiabetic patients. Given their higher risk, more effort is needed to ensure that CAD patients with diabetes receive aggressive lipid management.
- Published
- 2003
- Full Text
- View/download PDF
30. Prevalence and care of diabetes mellitus in the Medicare population of North Carolina. Baseline findings from the Medicare Healthcare Quality Improvement Program.
- Author
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Massing MW, Henley N, Biggs D, Schenck A, and Simpson RJ Jr
- Subjects
- Adult, Black or African American statistics & numerical data, Aged, Cross-Sectional Studies, Diabetes Mellitus economics, Diabetes Mellitus ethnology, Female, Guideline Adherence, Humans, Logistic Models, Male, Middle Aged, North Carolina epidemiology, Prevalence, Preventive Health Services standards, Quality Indicators, Health Care, White People statistics & numerical data, Diabetes Mellitus epidemiology, Diabetes Mellitus therapy, Medicare standards, Preventive Health Services statistics & numerical data, Quality Assurance, Health Care
- Abstract
Objective: To describe diabetes and its care in the Medicare population of North Carolina., Study Design: Cross-sectional., Data Source/study Setting: Medicare claims for North Carolina residents 18 to 75 years of age were reviewed to characterize diabetes prevalence during the late 1990s and to evaluate adherence to diabetes clinical practice recommendations., Principal Findings: Almost 84,000 persons with diabetes and Medicare were identified. Diabetes prevalence was 15.0% overall, 22.9% among African Americans, and 12.9% among Caucasians. A "diabetes belt" of relatively high prevalence was noted in the eastern coastal plain. Glycated hemoglobin testing, lipid testing, and retinopathy screening were performed at about half the recommended rate. Diabetes care rates were lower for African Americans than for Caucasians., Conclusions: Diabetes is a common and under-treated condition in the Medicare population of North Carolina, especially among African Americans., Relevance: There is much room for improvement in diabetes care within one of North Carolina's most vulnerable populations, the disabled and elderly enrolled in Medicare. Substantial public health opportunities exist in the identification and removal of barriers to diabetes care.
- Published
- 2003
31. Undertreatment of hyperlipidemia in patients with coronary artery disease and heart failure.
- Author
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Sueta CA, Massing MW, Chowdhury M, Biggs DP, and Simpson RJ Jr
- Subjects
- Adult, Age Factors, Aged, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Cholesterol, LDL blood, Cholesterol, LDL drug effects, Coronary Artery Disease blood, Coronary Artery Disease complications, Drug Prescriptions, Evidence-Based Medicine, Female, Heart Failure blood, Heart Failure complications, Humans, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Hyperlipidemias blood, Hyperlipidemias complications, Hypolipidemic Agents therapeutic use, Male, Middle Aged, Predictive Value of Tests, Severity of Illness Index, Stroke Volume physiology, Systole physiology, Treatment Outcome, United States epidemiology, Ventricular Dysfunction, Left drug therapy, Ventricular Dysfunction, Left physiopathology, Coronary Artery Disease drug therapy, Heart Failure drug therapy, Hyperlipidemias drug therapy
- Abstract
Background: Coronary artery disease patients with heart failure (CAD+HF) are at high risk for cardiovascular events. We examined the frequency of lipid assessment and prescription of lipid-lowering agents in outpatients with combined CAD+HF compared with patients with CAD alone., Methods: We analyzed an administrative data set from the Quality Assurance Program II, a Merck & Co., Inc., sponsored national retrospective chart audit of 41,487 CAD patients seen at 296 ambulatory medical practices. About 34% of these patients had CAD+HF., Results: Documentation of low-density lipoprotein (LDL) cholesterol was significantly lower in patients with CAD+HF (53%) compared with those with CAD alone (69%). Lipid-lowering drugs were prescribed in only 36% of patients with CAD+HF, compared with 52% of patients with CAD alone. Lipid levels alone did not justify this disparity. Patients with documented LDL cholesterol values were 4 times more likely to receive a prescription for a lipid-lowering medication than those without recorded values. Other predictors of lipid-lowering prescription included: younger age, history of myocardial infarction, revascularization, care by a cardiologist, and geographic region., Conclusions: Patients with CAD, HF, and advanced age simultaneously experience among the highest risk and the lowest lipid-lowering treatment rates. Strategies to increase LDL testing and aggressively treat patients with heart failure and CAD are warranted.
- Published
- 2003
- Full Text
- View/download PDF
32. Calcium channel blockers and mortality in elderly patients with myocardial infarction.
- Author
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Jollis JG, Simpson RJ Jr, Chowdhury MK, Cascio WE, Crouse JR 3rd, Massing MW, and Smith SC Jr
- Subjects
- Aged, Aged, 80 and over, Amlodipine therapeutic use, Bepridil therapeutic use, Diltiazem therapeutic use, Female, Humans, Logistic Models, Male, Myocardial Infarction complications, Myocardial Infarction therapy, Nifedipine therapeutic use, Retrospective Studies, Severity of Illness Index, Time Factors, Treatment Outcome, United States, Verapamil therapeutic use, Calcium Channel Blockers therapeutic use, Myocardial Infarction drug therapy, Myocardial Infarction mortality
- Abstract
Background: Although calcium channel blockers are a useful therapy in relieving angina, lowering blood pressure, and slowing conduction of atrial fibrillation, growing evidence has cast doubt on their safety in patients with coronary disease., Objective: To examine the association between calcium channel blocker therapy at hospital discharge and mortality in a population-based sample of elderly patients hospitalized with acute myocardial infarction., Design: Retrospective cohort study using data from medical charts and administrative files., Setting: All acute care hospitals in 46 states., Patients: All Medicare patients with a principal diagnosis of acute myocardial infarction consecutively discharged from the hospital alive during 8-month periods between 1994 and 1995 (N = 141,041)., Main Outcome Measure: Mortality at 30 days and 1 year., Results: Calcium channel blockers were widely prescribed at hospital discharge to elderly patients with myocardial infarction between 1994 and 1995 (n = 51,921), the most commonly prescribed being diltiazem (n = 21,175), nifedipine (n = 12,670), amlodipine (n = 11,683), and verapamil (n = 3639). After adjusting for illness severity and concomitant medication use, patients who were prescribed calcium channel blockers at hospital discharge did not have increased risk for 30-day or 1-year mortality, with the exception of the few (n = 116) treated with bepridil. Bepridil differs from other calcium channel blockers because of its tendency to prolong repolarization, and its association with proarrhythmic effects in elderly patients., Conclusion: We did not identify a mortality risk in a large consecutive sample of elderly patients with myocardial infarction, which supports the need for additional prospective trials examining calcium channel blocker therapy for ischemic heart disease.
- Published
- 1999
- Full Text
- View/download PDF
33. Opposing national stroke mortality trends in Poland and for African Americans and whites in the United States, 1968 to 1994.
- Author
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Massing MW, Rywik SL, Jasinski B, Manolio TA, Williams OD, and Tyroler HA
- Subjects
- Adult, Age Distribution, Aged, Black People, Cardiovascular Diseases ethnology, Cardiovascular Diseases mortality, Female, Humans, Male, Middle Aged, Mortality, Poland epidemiology, Sex Distribution, United States epidemiology, Black or African American statistics & numerical data, Cerebrovascular Disorders ethnology, Cerebrovascular Disorders mortality, White People statistics & numerical data
- Abstract
Background and Purpose: The United States (US) has experienced declines in stroke mortality in contrast to the increases reported for Poland. As part of the Poland and US Agreement on Cardiovascular and Cardiopulmonary Research, stroke mortality trends in Polish and US subpopulations were compared in the context of cross-population differences in competing causes of death and determinants of stroke., Methods: Age-adjusted annual stroke, cardiovascular disease (CVD), non-CVD, and all-cause mortality rates were determined for men and women aged 35 to 64 and 65 to 74 years from 1968 to 1994 for African Americans and US whites and in Poland. Mean annual percent changes of mortality rates were estimated during 1968 to 1980 and 1981 to 1994 with the use of piecewise log-linear regression., Results: US stroke mortality rates declined 3.7% to 4.8% annually during 1968 to 1980 and 2.0% to 3.1% during 1981 to 1994, with similar declines in each ethnic, gender, and age group. Polish rates increased 3.3% to 5.5% annually for all age-gender groups in Poland during 1968 to 1980. Polish men aged 35 to 64 experienced increasing rates during 1981 to 1994 (1.6% annually), while Polish women and older men experienced slight declines or little change. Only Polish men aged 35 to 64 years exhibited increases in stroke, CVD, and non-CVD mortality rates during both time intervals., Conclusions: Poland and the US experienced opposing stroke mortality rate trends between 1968 and 1994. These national and ethnic trends occurring in just one generation suggest major effects of lifestyle, socioenvironmental, and/or medical care determinants.
- Published
- 1998
- Full Text
- View/download PDF
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