Rachel Silver

Ms. Rachel Silver

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 December 2018 in Nutrients
Verified
Journal Article
Open access
PDF file
ATAmy Taetzsch
Amy Taetzsch
SDSai Krupa Das
Sai Krupa Das
CBCarrie Brown
Carrie Brown
AKAmy Krauss
Amy Krauss
RSRachel Silver
Rachel Silver
Susan B. RobertsSusan B. Roberts
Susan B. Roberts
Gluten-free (GF) eating patterns are frequently perceived to be healthier than gluten-containing (GC) ones, but there has been very little research to evaluate this viewpoint. The effect of GF eating patterns on dietary composition was assessed using two independent approaches. One approach compared macronutrients and typical shortfall nutrients between MyPlate example menus developed with either GC or equivalent GF foods. In this analysis, the GF menus were significantly lower in protein, magnesium, potassium, vitamin E, folate, and sodium (p = 0.002–0.03), with suggestive trends towards lower calcium and higher fat (p = 0.06–0.08). The second approach was a meta-analysis of seven studies comparing information on the nutrient intakes of adults with celiac disease following a GF diet with control subjects eating a GC diet, and differences were evaluated using paired t-tests or Wilcoxon Signed rank tests. In this analysis, consuming a GF diet was associated with higher energy and fat intakes, and lower fiber and folate intakes compared to controls (p < 0.001 to p = 0.03). After adjusting for heterogeneity and accounting for the large mean effect size (−0.88 ± 0.09), the lower fiber remained significant (p < 0.001). These combined analyses indicate that GF diets are not nutritionally superior except for sodium, and in several respects are actually worse.

22 May 2024 in European Journal of Human Genetics
Verified
Journal Article
Open access
PDF file
KSKaitlin J. Stanley
Kaitlin J. Stanley
KKKelsey J. Kalbfleisch
Kelsey J. Kalbfleisch
OMOlivia M. Moran
Olivia M. Moran
RCRajiv R. Chaturvedi
Rajiv R. Chaturvedi
MRMaian Roifman
Maian Roifman
RJRebekah K. Jobling
Rebekah K. Jobling
Pathogenic variants in NOTCH1 are associated with non-syndromic congenital heart disease (CHD) and Adams–Oliver syndrome (AOS). The clinical presentation of individuals with damaging NOTCH1 variants is characterized by variable expressivity and incomplete penetrance; however, data on systematic phenotypic characterization are limited. We report the genotype and phenotype of a cohort of 33 individuals (20 females, 13 males; median age 23.4 years, range 2.5–68.3 years) from 11 families with causative NOTCH1 variants (9 inherited, 2 de novo; 9 novel), ascertained from a proband with CHD. We describe the cardiac and extracardiac anomalies identified in these 33 individuals, only four of whom met criteria for AOS. The most common CHD identified was tetralogy of Fallot, though various left- and right-sided lesions and septal defects were also present. Extracardiac anomalies identified include cutis aplasia (5/33), cutaneous vascular anomalies (7/33), vascular anomalies of the central nervous system (2/10), Poland anomaly (1/33), pulmonary hypertension (2/33), and structural brain anomalies (3/14). Identification of these findings in a cardiac proband cohort supports NOTCH1-associated CHD and NOTCH1-associated AOS lying on a phenotypic continuum. Our findings also support (1) Broad indications for NOTCH1 molecular testing (any familial CHD, simplex tetralogy of Fallot or hypoplastic left heart); (2) Cascade testing in all at-risk relatives; and (3) A thorough physical exam, in addition to cardiac, brain (structural and vascular), abdominal, and ophthalmologic imaging, in all gene-positive individuals. This information is important for guiding the medical management of these individuals, particularly given the high prevalence of NOTCH1 variants in the CHD population.

24 April 2019 in Military Medicine
Verified
Journal Article
Open access
PDF file
ATAmy Taetzsch
Amy Taetzsch
CGCheryl H Gilhooly
Cheryl H Gilhooly
ABAsma S. Bukhari
Asma S. Bukhari
SDSai Krupa Das
Sai Krupa Das
EMEdward Martin
Edward Martin
Susan B. RobertsSusan B. Roberts
Susan B. Roberts
Effective, standardized, and easily accessible weight management programs are urgently needed for military beneficiaries. Videoconference interventions have the potential for widespread scaling, and can provide both real time interaction and flexibility in delivery times regardless of location, but there is little information on their effectiveness and acceptability. This study as part of a larger weight loss trial describes the videoconference adaption of Group Lifestyle Balance (GLB) program, a community group-based Diabetes Prevention Program intervention, and provides a comparison of weight loss and meeting attendance between in-person and videoconference delivery modes over 12 weeks in adult family members of military service members. Forty-three participants were enrolled from two military installations and received either the videoconference-adapted or an in-person GLB program in a non-randomized trial design. Differences in program attendance and percent weight lost at 12 weeks were compared by independent samples t-tests and nonparametric methods. Group differences in the percentage of weight lost over the 12-week period were analyzed using a linear mixed model. All GLB intervention components were successfully delivered by videoconference with minor adaptations for the different delivery mechanism. Participant retention was 70% and 96% in the in-person and videoconference groups, respectively (p = 0.04). Completing participants in both groups lost a significant percent body weight over the 12 week intervention (p < 0.001) and there was no difference in percent body weight after 12 weeks of intervention (6.2 ± 3.2% and 5.3 ± 3.4% for in-person and videoconference at 12 weeks, respectively; p = 0.60). This study describes the first videoconference adaption of the GLB program for use in military families. Attrition was lower in the videoconference group, and there were a similar levels of weight loss in both groups regardless of delivery modality. Videoconference weight loss interventions are effective and feasible for scaling to support healthy weight management in military as well as civilian populations.

23 March 2024 in Nutrients
Verified
Journal Article
Open access
PDF file
SGSuzannah Gerber
Suzannah Gerber
RSRachel Silver
Rachel Silver
SDSai Krupa Das
Sai Krupa Das
SGSavana S. Greene
Savana S. Greene
SDSadie R. Dix
Sadie R. Dix
Susan B. RobertsSusan B. Roberts
Susan B. Roberts
Lifestyle programs that reduce health risks and support weight loss (WL) in older adults face adherence and attendance challenges due to reduced energy requirements, impaired mobility, lack of transportation, and low social support. Tailored lifestyle and weight management programs are needed to better support healthy aging for older adults. Here, we developed and piloted an age-adapted, remotely delivered modification of the Diabetes Prevention Program (DPP). The modification includes age-appropriate goals, visuals, and examples; flexible dietary composition; remote classroom and fitness-monitoring technology; and standardized online classroom materials employing pedagogical and behavior change theory. The modifications were designed to safeguard fidelity and to boost adherence, engagement, and knowledge integration, with the convenience of a fully remote WL program for diverse older adults. Six-month pilot data are presented from older adults (55–85 years, body mass index (BMI) 27–39.9 kg/m2, N = 20) randomly allocated to an online DPP intervention with weight, diet, and activity monitored remotely, or into a waitlisted control. The intervention achieved 100% attendance and adherence to self-monitoring. The intervention group mean (±SD) body weight change was −9.5% (±4.1); 90% lost ≥ 5%. By contrast, the control group gained 2.4% (±1.8). Once thought incompatible with older adults, remote interventions are feasible for older adults and can support fidelity, adherence, engagement, and clinically significant WL. Standardized materials are provided for future implementation.

14 January 2023 in The Journal of Nutrition
Verified
Journal Article
Closed access
RSRachel Silver
Rachel Silver
SRSusan B. Roberts
Susan B. Roberts
AKArthur F. Kramer
Arthur F. Kramer
KCKenneth K.H. Chui
Kenneth K.H. Chui
SDSai Krupa Das
Sai Krupa Das

14 September 2011 in Skin Research and Technology
Verified
Journal Article
Open access
PDF file
RSRachel Silver
Rachel Silver
AHAmy Helms
Amy Helms
WFWen Fu
Wen Fu
HWHui Wang
Hui Wang
DDDoina Diaconu
Doina Diaconu
NWNicole L. Ward
Nicole L. Ward
Background: Non‐invasive methods are desirable for longitudinal studies examining drug efficacy and disease resolution defined as decreases in epidermal thickness in mouse models of psoriasiform skin disease. This would eliminate the need for either sacrificing animals or collecting serial skin biopsies to evaluate changes in disease progression during an individual study. The quantitation of epidermal thickness using optical coherence tomography (OCT) provides an alternative to traditional histology techniques.Methods: Using the KC‐Tie2 doxycycline‐repressible psoriasiform skin disease mouse model, OCT imaging was completed on diseased back skin of adult KC‐Tie2 (n = 3–4) and control (n = 3–4) mice, followed immediately by the surgical excision of the same region for histologic analyses. Animals were then treated with doxycycline to suppress transgene expression and to reverse the skin disease and additional OCT images and tissues were collected 2 and 4 weeks following. Epidermal thickness was measured using OCT and histology.Results: Optical coherence tomography and histology both demonstrated that KC‐Tie2 mice had significantly thicker epidermis (~4‐fold; P < 0.0001) than control animals. By 2 weeks following gene repression, decreases in epidermal thickness were observed using both OCT and histology, and were sustained through 4 weeks. Correlation analyses between histology and OCT values at all time points and in all animals revealed high significance (R2 = 0.78); with correlation being highest in KC‐Tie2 mice (R2 = 0.92) compared to control animals (R2 = 0.16).Conclusion: Non‐invasive OCT imaging provided similar values as those collected using standard histologic measures in thick skin of KC‐Tie2 mice but became less reliable in thinner control mouse skin, possibly reflecting limitations in resolution of OCT. Future advances in resolution of OCT may improve and allow greater accuracy of epidermal thickness measurements.