Publications
Department of Medicine faculty members published more than 3,000 peer-reviewed articles in 2022.
2015
OBJECTIVE
Data describing relationships between muscle strength, muscle mass, and physical disability among individuals with systemic lupus erythematosus (SLE) are limited. The present study examines the relationship of muscle strength and muscle mass with physical disability among adult women with SLE.
METHODS
A total of 146 women from a longitudinal SLE cohort participated in the study. All measures were collected during an in-person research visit. Lower extremity muscle strength was assessed by peak knee torque of extension and flexion and by chair-stand time. Total lean body mass, appendicular lean mass, and fat mass (kg/m(2) ) were measured by whole-body dual x-ray absorptiometry. Self-reported physical disability was assessed using the Short Form 36 health survey (SF-36) physical functioning subscale, and the Valued Life Activities (VLA) disability scale. Spearman's rank correlation coefficients tested the correlations between muscle strength, muscle mass, and disability scores. Regression analyses modeled the effect of lower extremity muscle strength and mass on SF-36 and VLA disability scores controlling for age, SLE duration, SLE disease activity measured with the Systemic Lupus Activity Questionnaire, physical activity level, prednisone use, body composition, and depression.
RESULTS
On all measures, reduced lower extremity muscle strength was associated with poorer SF-36 and VLA disability scores. Trends persisted after adjustment for covariates. Muscle mass was moderately correlated with muscle strength, but did not contribute significantly to adjusted regression models.
CONCLUSION
Lower extremity muscle strength, but not muscle mass, was strongly associated with physical disability scores. While further studies are needed, these findings suggest that improving muscle strength may reduce physical disability among women with SLE.
View on PubMed2015
Depression is one of the most prevalent psychiatric comorbidities of HIV and one of the greatest barriers to HIV self-care and adherence. Despite this, little consensus exists on how to best measure depression among people living with HIV/AIDS (PLWHA) in African settings. Measurement of depression among PLWHA may be confounded by somatic symptoms. Some research recommends excluding these items to enhance measurement validity; sensitivity may be lost with this approach. We sought to characterize depression among a cohort (N = 453) of PLWHA initiating antiretroviral therapy in Uganda via factor analysis of a widely used measure of depression, the Hopkins Symptom Checklist (HSCLD). Common factor analysis was performed, associations between HSCLD and the Mental Health subscale of the Medical Outcomes Study HIV (MOS-HIV) estimated, and a Cronbach's alpha calculated to examine validity. Factor analysis yielded two factors: (1) somatic-cognitive symptoms and (2) behavioral disengagement. Persons with more versus less advanced disease (CD4 cell count of ≤200 cells/mm(3)) showed no statistically significant differences in depression scores (1.7 vs. 1.7, P ≥ 0.5). Both factors were significantly associated with the MOS-HIV (P < .01). Factor one was highly reliable (α = .81); factor two had only modest reliability (α = .65). Somatic-cognitive symptoms of depression and disengagement from life's activities appear to be distinct components of depression in this sample. Consideration of somatic items may be valuable in identifying depression in this setting.
View on PubMed2015
Little is known about trends in depression at antiretroviral therapy (ART) initiation among people living with HIV (PLHIV) in low- and middle-income countries. We used data from an ongoing cohort of treatment-naïve PLHIV in rural Uganda to estimate secular trends in depression among PLHIV at ART initiation. We fitted linear regression models with depression symptom severity as the outcome variable and year of cohort entry (2005-2012) as the explanatory variable, adjusting for socio-demographic variables and assessing physical health score, body mass index (BMI), and CD4 count as potential mediators of a secular trend in depression symptom severity. There was a statistically significant negative association between year of entry and depression symptom severity, suggesting a 3.1 % relative decline in the mean depression symptom severity score at ART initiation in each year of study recruitment after the first year. This trend remained statistically significant after inclusion of baseline socio-demographic characteristics to the model and appeared to be driven by improved physical health scores, but not CD4 count or BMI.
View on PubMed2015
2015
AIMS
Knowledge of consumer perspectives of personalized medicine (PM) is limited. Our study assessed consumer perspectives of PM, with a focus on oncology care, to inform industry, clinician and payer stakeholders' programs and policy.
MATERIALS & METHODS
A nationally representative survey of 602 US consumers' ≥30 years old explored familiarity, perspectives and expected value of PM.
RESULTS
Most (73%) respondents have not heard of 'personalized medicine,' though after understanding the term most (95%) expect PM to have a positive beneft. Consumer's willingness to pay is associated with products' impact on survival, rather than predicting disease risk. If testing indicates consumers are not candidates for oncology therapies, most (84%) would seek a second opinion or want therapy anyway.
CONCLUSIONS
Understanding heterogeneity in consumer perspectives of PM can inform program and policy development.
View on PubMed2015
Understanding the contribution of dysregulated gene silencing to epigenomic alterations in cancer development provides the rationale for the use of epigenetic modulators, such as histone deacetylase (HDAC) inhibitors, in cancer therapy. HDAC inhibitors have been approved as single agents for cutaneous and peripheral T-cell lymphoma and have shown promising activity in reversing therapy resistance in other tumor types. The effects of HDAC inhibitors on immune modulation have created a recent interest in their potential role in immunotherapy. This review describes the current understanding on integrating HDAC inhibitors into various immunotherapeutic approaches, such as cancer vaccines, adoptive T-cell transfer and immune checkpoint inhibitors. Furthermore, it summarizes promising treatment strategies in epigenetic immune priming from clinical trials that are currently underway.
View on PubMed2015
OBJECTIVE
To compare the types of recommendations documented in pharmacy resident and student home-visit notes with those made in the electronic medical record-based drug regimen review (DRR) notes.
SETTING
San Francisco Veterans Affairs Medical Center (SFVAMC), San Francisco, California.
PRACTICE DESCRIPTION
The SFVAMC Home-Based Primary Care (HBPC) program provides primary care services through an interdisciplinary team. The pharmacist performs a DRR-a federally required, quarterly retrospective review of the medications for each patient enrolled in the HBPC program and acts as a preceptor for pharmacy residents and students helping to provide patient care.
PRACTICE INNOVATION
Starting in 2008, residents and students began making home visits with the HBPC primary care providers. Activities and recommendations were documented in a home visit clinical note.
MAIN OUTCOME MEASURES
Number and types of recommendations documented during the DRR and in the home visit notes as well as the clinical change in disease states based on the accepted recommendations.
RESULTS
Ninety-three recommendations were accepted: 27 DRR recommendations and 66 home visit recommendations from August 1, 2008, to July 31, 2009. The most commonly accepted DRR recommendations were to evaluate response to therapy (29%) and home visit recommendations to document medications not listed in the medication profile (26%). Clinical change in disease state based on the majority of the accepted recommendations remained unchanged for both DRR and home visit recommendations.
CONCLUSION
Home visits by pharmacy residents and students resulted in a greater number and different type of recommendations documented in their home visit notes compared with those in the DRR notes.
View on PubMed2015
Approximately four million adults in the United States are homebound, and many of them cannot access office-based primary care. Home-based medical care can improve outcomes and reduce health care costs, but this care operates in a quality measurement desert, having been largely left out of the national conversation on care quality. To address this shortcoming, two of the authors created the National Home-Based Primary and Palliative Care Network, an organization whose members include exemplary home-based medical practices, professional societies, and patient advocacy groups. This article describes the current status of home-based medical care in the United States and offers a brief narrative of a fictional homebound patient and the health events and fragmented care she faces. The article then describes the network's quality-of-care framework, which includes ten quality-of-care domains, thirty-two standards, and twenty quality indicators that are being tested in the field. The same two authors also developed a practice-based registry that will be used for quality-of-care benchmarking, practice-based quality improvement, performance reporting, and comparative effectiveness research. Together, these steps should help bring home-based medical care further into the mainstream of US health care.
View on PubMed2015
OBJECTIVE
To examine the prevalence, predictors, and effects of nocturia in women and evaluate overlaps with established urinary tract disorders.
METHODS
This was a cross-sectional analysis of 2,016 women, aged 40 years and older, recruited from Kaiser Permanente Northern California from 2008 to 2012. Nocturia and other urinary symptoms were assessed using structured interviewer-administered questionnaires. Nocturia was defined as patient-reported nocturnal voiding of two or more times per night over a typical week.
RESULTS
Thirty-four percent (n=692) reported nocturia, and 40% of women with nocturia reported no other urinary tract symptom. Women with nocturia were older (mean age 58 compared with 55 years) (odds ratio [OR] per 5-year increase 1.21, 95% confidence interval [CI] 1.12-1.31), more likely black (45%) (OR 1.75, 95% CI 1.30-2.35) or Latina (37%) (OR 1.36, 95% CI 1.02-1.83) compared with non-Latina white (30%), have worse depression (mean Hospital Anxiety and Depression Scale score 3.8 compared with 2.8) (OR per 1-point increase in Hospital Anxiety and Depression Scale score 1.08, 95% CI 1.04-1.12), and worse mobility (mean Timed Up-and-Go 11.3 compared with 10 seconds) (OR per 5-second increase in Timed Up-and-Go 1.29, 95% CI 1.05-1.58). Nocturia occurred more among women with hysterectomy (53% compared with 33%) (OR 1.78, 95% CI 1.08-2.94), hot flushes (38% compared with 32%) (OR 1.49, 95% CI 1.19-1.87), and vaginal estrogen use (42% compared with 34%) (OR 1.50, 95% CI 1.04-2.18).
CONCLUSION
Nocturia is common in women and not necessarily attributable to other urinary tract disorders. Factors not linked to bladder function may contribute to nocturia risk, underlining the need for multiorgan prevention and treatment strategies.
LEVEL OF EVIDENCE
II.
View on PubMed2015
IMPORTANCE
With an aging population, preoperative assessment of the frail older adult requires evaluation beyond simply accounting for chronic diseases. Impaired cognition is a recognized characteristic of the frail older adult.
OBJECTIVE
To examine the effect of preoperative impaired sensorium (IS) on general surgical outcomes.
DESIGN, SETTING, AND PARTICIPANTS
Retrospective cohort study using data between January 2005 and December 2010 at academic and community hospitals participating in the American College of Surgeons National Surgical Quality Improvement Program. Patients undergoing nonemergent general surgical operations were studied. Multivariable logistic regression involving 45 preoperative patient-level risk factors and comorbidities was used to calculate the conditional probability of having IS. Patients having and not having preoperative IS were matched on their propensity scores using a 1:1 greedy matching technique. Propensity score matching resulted in almost all (n = 1765) patients with IS uniquely matching to a patient without IS, resulting in a cohort size of 3530. Complication rates between patients with and without IS were compared.
MAIN OUTCOMES AND MEASURES
Rates of postoperative complications and death following nonemergent general surgical operations.
RESULTS
In total, 294 037 patients were studied, of whom 1771 (0.6%) had preoperative IS. Patients with IS were older and had more significant preoperative risk factors and comorbidities. As a result, unadjusted analysis found that 22 of 23 postoperative complications were significantly more likely to occur in patients with IS. Within the matched cohort, rates of postoperative pneumonia, ventilator dependence, progressive renal insufficiency, urinary tract infection, stroke, venous thromboembolism, and postoperative death continued to be significantly (P < .05) elevated in patients with IS.
CONCLUSIONS AND RELEVANCE
Impaired sensorium significantly increases postoperative morbidity and mortality independent of other preoperative risk factors and comorbidities following nonemergent general surgical operations. Incorporation of impaired cognitive function into routine preoperative risk assessment and decision making could be an important addition to traditional risk assessment strategies.
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