Marcos Daniel Villarreal
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Marcos Daniel Villarreal has a total of 33 co-authors. Here are the top co-authors by number of shared publications:
- Bindu Kalesan
Center for Clinical Translational Epidemiology and Comparative Effectiveness Research, Boston University School of Medicine, Boston, Massachusetts, USA
4 shared publications - Sandro Galea
School of Public Health, Boston University, Boston, Massachusetts
3 shared publications Jeffrey Fagan
Department of Epidemiology, Columbia University, New York, New York, USA
2 shared publicationsAllison J. Matti
Department of Integrative Physiology and Center for Neuroscience, University of Colorado Boulder, 1725 Pleasant Street, 114 Clare Small, UCB 354, 80309 Boulder, CO, USA
1 shared publicationApril D. Crow
University of Texas Southwestern Medical Center, Dallas, TX, USA
1 shared publication- Charles DiMaggio
Department of Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
1 shared publication
Latest Publications
- Open Access
- 11 October 2025
- Published by Elsevier in Aging and Health Research
- Vol. 5 (4)
Does body mass index predict changes in body composition and metabolic markers in response to testosterone therapy?
- 11 October 2025
- Published by Elsevier in Aging and Health Research
- Vol. 5 (4)
Open AccessDoes body mass index predict changes in body composition and metabolic markers in response to testosterone therapy?
- 1 January 2019
- Published by Wolters Kluwer Health in Rehabilitation Nursing Journal
- Vol. 44 (1) , 29-34
Music as a Therapy to Alleviate Anxiety During Inpatient Rehabilitation for Stroke
Purpose: The aim of the study was to determine if listening to music may reduce anxiety experienced by stroke patients during acute rehabilitation. Design: A prospective, nonblinded, randomized study in an inpatient rehabilitation setting. Methods: Fifty participants were randomized into two groups: (1) 1 hour of music (intervention) or (2) no music (control). All participants completed pretest anxiety and depression screening and 44 completed the posttest anxiety screening. Differences between groups were determined using chi-square and t tests. Findings: After listening to music for 1 hour, participants who completed the posttest (n = 44) reported significantly less anxiety (p < .0001) compared to before the intervention. The control group showed no difference in their pre- and posttest anxiety scores (p = .84). No differences were determined among age, gender, or diagnostic groups. Conclusions: These findings demonstrate that music intervention may help lessen anxiety in rehabilitation patients poststroke. Clinical Relevance: Offering musical intervention to stroke patients in rehabilitation may lessen symptoms of anxiety.
- 1 January 2019
- Published by Wolters Kluwer Health in Rehabilitation Nursing Journal
- Vol. 44 (1) , 29-34
Music as a Therapy to Alleviate Anxiety During Inpatient Rehabilitation for Stroke
Purpose: The aim of the study was to determine if listening to music may reduce anxiety experienced by stroke patients during acute rehabilitation. Design: A prospective, nonblinded, randomized study in an inpatient rehabilitation setting. Methods: Fifty participants were randomized into two groups: (1) 1 hour of music (intervention) or (2) no music (control). All participants completed pretest anxiety and depression screening and 44 completed the posttest anxiety screening. Differences between groups were determined using chi-square and t tests. Findings: After listening to music for 1 hour, participants who completed the posttest (n = 44) reported significantly less anxiety (p < .0001) compared to before the intervention. The control group showed no difference in their pre- and posttest anxiety scores (p = .84). No differences were determined among age, gender, or diagnostic groups. Conclusions: These findings demonstrate that music intervention may help lessen anxiety in rehabilitation patients poststroke. Clinical Relevance: Offering musical intervention to stroke patients in rehabilitation may lessen symptoms of anxiety.
- Open Access
- 6 December 2016
- Published by BMJ in Injury Prevention
- Vol. 23 (5) , 321-327
School shootings during 2013–2015 in the USA
Background Data on the factors associated with school shootings in the USA are limited. The public conversation has often suggested several factors that may be linked to these events, however with little empirical support. Aiming to fill this gap, we describe the characteristics of school shooting incidents in the USA between 2013 and 2015 and explore whether four factors that represent domains of firearm policy, educational policy and epidemiological risk factors for intentional firearm injuries-background check (BC) policies, per capita mental health expenditures (MHE), K-12 education expenditure (KEE) and urbanicity—were associated with school shootings during this period. Methods We searched LexisNexis, a newspaper and broadcast media databases for school shooting incidents from 1 January 2013 to 31 December 2015. Presence of BC laws was extracted from legal information in LexisNexis. State-level covariates of per capita MHE (2013), KEE (2013) and urbanicity (2010) rates were obtained from publicly available data sources. We used negative binomial regression models accounting for clustering by state to explore unadjusted associations between the BC laws, state-level covariates and school shootings to report IRR and 95% CI. Results We documented 154 school shootings (35, 55 and 64 each year). In unadjusted models, BC for firearm purchase (IRR=0.55, 95% CI 0.39 to 0.76), ammunition purchase (IRR=0.11, 95% CI 0.05 to 0.27), log per capita MHE (IRR=0.58, 95% CI 0.37 to 0.90), log per-capita KEE (IRR=0.09, 9% CI 0.02 to 0.29) and urbanicity (IRR=0.97, 95% CI 0.96 to 0.99) were associated with school shooting. Conclusions School shootings are less likely in states with BC laws, higher MHE and KEE, and with greater per cent urban population.
- 6 December 2016
- Published by BMJ in Injury Prevention
- Vol. 23 (5) , 321-327
Open AccessSchool shootings during 2013–2015 in the USA
Background Data on the factors associated with school shootings in the USA are limited. The public conversation has often suggested several factors that may be linked to these events, however with little empirical support. Aiming to fill this gap, we describe the characteristics of school shooting incidents in the USA between 2013 and 2015 and explore whether four factors that represent domains of firearm policy, educational policy and epidemiological risk factors for intentional firearm injuries-background check (BC) policies, per capita mental health expenditures (MHE), K-12 education expenditure (KEE) and urbanicity—were associated with school shootings during this period. Methods We searched LexisNexis, a newspaper and broadcast media databases for school shooting incidents from 1 January 2013 to 31 December 2015. Presence of BC laws was extracted from legal information in LexisNexis. State-level covariates of per capita MHE (2013), KEE (2013) and urbanicity (2010) rates were obtained from publicly available data sources. We used negative binomial regression models accounting for clustering by state to explore unadjusted associations between the BC laws, state-level covariates and school shootings to report IRR and 95% CI. Results We documented 154 school shootings (35, 55 and 64 each year). In unadjusted models, BC for firearm purchase (IRR=0.55, 95% CI 0.39 to 0.76), ammunition purchase (IRR=0.11, 95% CI 0.05 to 0.27), log per capita MHE (IRR=0.58, 95% CI 0.37 to 0.90), log per-capita KEE (IRR=0.09, 9% CI 0.02 to 0.29) and urbanicity (IRR=0.97, 95% CI 0.96 to 0.99) were associated with school shooting. Conclusions School shootings are less likely in states with BC laws, higher MHE and KEE, and with greater per cent urban population.
- 1 January 2016
- Published by Elsevier in Annals of Epidemiology
- Vol. 26 (1) , 1-6.e2
Race and ethnicity, neighborhood poverty and pediatric firearm hospitalizations in the United States
- 1 January 2016
- Published by Elsevier in Annals of Epidemiology
- Vol. 26 (1) , 1-6.e2
Race and ethnicity, neighborhood poverty and pediatric firearm hospitalizations in the United States
- 1 January 2016
- Published by Elsevier in Psychoneuroendocrinology
- Vol. 63, 178-190
Serotonergic systems in the balance: CRHR1 and CRHR2 differentially control stress-induced serotonin synthesis
- 1 January 2016
- Published by Elsevier in Psychoneuroendocrinology
- Vol. 63, 178-190
Serotonergic systems in the balance: CRHR1 and CRHR2 differentially control stress-induced serotonin synthesis
- Top Cited Papers
- 29 June 2015
- Published by BMJ in Injury Prevention
- Vol. 22 (3) , 216-220
Gun ownership and social gun culture
We assessed gun ownership rates in 2013 across the USA and the association between exposure to a social gun culture and gun ownership. We used data from a nationally representative sample of 4000 US adults, from 50 states and District of Columbia, aged >18 years to assess gun ownership and social gun culture performed in October 2013. State-level firearm policy information was obtained from the Brady Law Center and Injury Prevention and Control Center. One-third of Americans reported owning a gun, ranging from 5.2% in Delaware to 61.7% in Alaska. Gun ownership was 2.25-times greater among those reporting social gun culture (PR=2.25, 95% CI 2.02 to 2.52) than those who did not. In conclusion, we found strong association between social gun culture and gun ownership. Gun cultures may need to be considered for public health strategies that aim to change gun ownership in the USA.
- 29 June 2015
- Published by BMJ in Injury Prevention
- Vol. 22 (3) , 216-220
Top Cited PapersGun ownership and social gun culture
We assessed gun ownership rates in 2013 across the USA and the association between exposure to a social gun culture and gun ownership. We used data from a nationally representative sample of 4000 US adults, from 50 states and District of Columbia, aged >18 years to assess gun ownership and social gun culture performed in October 2013. State-level firearm policy information was obtained from the Brady Law Center and Injury Prevention and Control Center. One-third of Americans reported owning a gun, ranging from 5.2% in Delaware to 61.7% in Alaska. Gun ownership was 2.25-times greater among those reporting social gun culture (PR=2.25, 95% CI 2.02 to 2.52) than those who did not. In conclusion, we found strong association between social gun culture and gun ownership. Gun cultures may need to be considered for public health strategies that aim to change gun ownership in the USA.
- 12 June 2015
- Published by Springer Nature in Breast Cancer Research and Treatment
- Vol. 152 (2) , 231-237
Venlafaxine in management of hot flashes in women with breast cancer: a systematic review and meta-analysis
Toxicity due to treatment causes a negative impact on quality of life in breast cancer survivors. Hot flash symptoms, described as intense sensations of heat, sweating and flushing occur in more than 50 % of breast cancer patients taking tamoxifen. We hypothesized that venlafaxine, a selective-norepinephrine reuptake inhibitor drug, was effective for reducing patient-reported hot flash scores among women treated for breast cancer compared to other non-hormonal treatments. We searched Medline, Scopus, and Cochrane Central Register of Controlled Trials from inception till May 2015 for venlafaxine (75 mg once daily or greater) with non-hormonal comparators for the treatment of hot flashes in female breast cancer patients. The primary outcome was hot flash score (derived from patient-reported hot flash severity and frequency) in randomized controlled trials. Standardized mean differences (SMD) were calculated for each study due to variation in the outcome measures. Heterogeneity was determined using I 2 statistics, and publication bias was assessed using a contour funnel plot and Egger’s tests. Pooled analyses demonstrated that venlafaxine significantly reduced hot flash scores compared to the trial comparators (overall SMD 2.06; 95 % confidence interval (CI) [0.40, 3.72]). There was significant heterogeneity among these studies (I 2 = 98.7 %, P < 0.001). Asymmetry in the contour funnel plot suggests the presence of publication bias and a trend towards small study effects (Egger’s test, P = 0.096). Venlafaxine is efficacious in managing hot flashes among women with breast cancer. This review highlights methodological issues that arise from eligible trials and recommends a collaborative approach in survivorship studies.
- 12 June 2015
- Published by Springer Nature in Breast Cancer Research and Treatment
- Vol. 152 (2) , 231-237
Venlafaxine in management of hot flashes in women with breast cancer: a systematic review and meta-analysis
Toxicity due to treatment causes a negative impact on quality of life in breast cancer survivors. Hot flash symptoms, described as intense sensations of heat, sweating and flushing occur in more than 50 % of breast cancer patients taking tamoxifen. We hypothesized that venlafaxine, a selective-norepinephrine reuptake inhibitor drug, was effective for reducing patient-reported hot flash scores among women treated for breast cancer compared to other non-hormonal treatments. We searched Medline, Scopus, and Cochrane Central Register of Controlled Trials from inception till May 2015 for venlafaxine (75 mg once daily or greater) with non-hormonal comparators for the treatment of hot flashes in female breast cancer patients. The primary outcome was hot flash score (derived from patient-reported hot flash severity and frequency) in randomized controlled trials. Standardized mean differences (SMD) were calculated for each study due to variation in the outcome measures. Heterogeneity was determined using I 2 statistics, and publication bias was assessed using a contour funnel plot and Egger’s tests. Pooled analyses demonstrated that venlafaxine significantly reduced hot flash scores compared to the trial comparators (overall SMD 2.06; 95 % confidence interval (CI) [0.40, 3.72]). There was significant heterogeneity among these studies (I 2 = 98.7 %, P < 0.001). Asymmetry in the contour funnel plot suggests the presence of publication bias and a trend towards small study effects (Egger’s test, P = 0.096). Venlafaxine is efficacious in managing hot flashes among women with breast cancer. This review highlights methodological issues that arise from eligible trials and recommends a collaborative approach in survivorship studies.