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Diaz EC, Williams DK, Howie EK, Børsheim E, Andres A. Offspring sex modifies the association between early-pregnancy adiposity and 2-year-old physical activity-The Glowing Study. Int J Obes (Lond) 2024; 48:542-549. [PMID: 38245658 DOI: 10.1038/s41366-023-01446-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND Rodent models suggest that in utero exposure to under and overnutrition programs offspring physical activity (PA) behaviors. Such nexus has not been established in humans. This study evaluated the association of early pregnancy maternal adiposity with offspring PA at age 2 years (2-yo-PA) taking into consideration prenatal and postnatal factors. METHODS Women (n = 153) were enrolled early in pregnancy (<10 weeks). At enrollment, maternal adiposity [air displacement plethysmography, fat mass index (FMI, kg/m2)] and PA (accelerometers, activity counts) were measured, and age, race, and education self-reported. Gestational weight gain was measured at the research facility. Offspring birthweight and sex were self-reported. At age 2 years, parental feeding practices (child feeding questionnaire) were assessed, whereas anthropometrics (length and weight) and physical activity (accelerometers) were objectively measured. Offspring body mass index z-scores were calculated. Generalized linear regression analysis modeled the association of maternal FMI and 2-yo-PA [average activity counts (AC)4/day]. RESULTS In bivariate associations, 2-yo-PA did not associate with maternal FMI (β = -0.22, CI = -0.73 to 0.29, p = 0.398). However, maternal FMI interacted with offspring sex in association with 2-yo-PA. Specifically, 2-yo-PA was lower in girls (β = -1.14, CI = -2.1 to -0.18, p = 0.02) compared to boys when maternal FMI was ≥7 kg/m2. When stratified by sex, 2-yo-PA of girls negatively associated with maternal FMI (β = -0.82, CI = -1.43 to 0.29, p = 0.009) while no association was found between maternal FMI and boy's PA (β = 0.32, CI = -0.38 to 1.01, p = 0.376). CONCLUSIONS The association of 2-yo-PA and early pregnancy maternal adiposity was modified by offspring sex. Offspring's physical activity decreased with increasing early pregnancy adiposity maternal in girls but not boys in second parity dyads.
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Affiliation(s)
- Eva C Diaz
- Arkansas Children's Nutrition Center, Little Rock, AR, USA.
- Arkansas Children's Research Institute, Little Rock, AR, USA.
- Department of Pediatrics, Little Rock, AR, USA.
| | - David K Williams
- Department of Biostatistics in the Colleges of Medicine and Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | | | - Elisabet Børsheim
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Arkansas Children's Research Institute, Little Rock, AR, USA
- Department of Pediatrics, Little Rock, AR, USA
| | - Aline Andres
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Arkansas Children's Research Institute, Little Rock, AR, USA
- Department of Pediatrics, Little Rock, AR, USA
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Tas E, Landes RD, Diaz EC, Bai S, Ou X, Buchmann R, Na X, Muzumdar R, Børsheim E, Dranoff JA. Effects of short-term supervised exercise training on liver fat in adolescents with obesity: a randomized controlled trial. Obesity (Silver Spring) 2023; 31:2740-2749. [PMID: 37731271 DOI: 10.1002/oby.23887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 09/22/2023]
Abstract
OBJECTIVE The objective of this study was to quantify the effects of a 4-week, supervised, high-intensity interval training (HIIT) on intrahepatic triglyceride content (IHTG, percentage), cardiorespiratory fitness (CRF), and cardiometabolic markers in adolescents with obesity. METHODS A total of 40 adolescents (age 13-18 y, BMI 36.7 ± 5.8 kg/m2 ) at risk for metabolic dysfunction-associated steatotic liver disease (MASLD) based on obesity and elevated Fibroscan measured controlled attenuation parameter (CAP) scores were randomized to HIIT three times a week for 4 weeks (n = 34) or observation (control; n = 6). Liver magnetic resonance imaging proton-density fat-fraction (MRI-PDFF), CAP, oral glucose tolerance test, serum alanine aminotransferase, dual-energy x-ray absorptiometry, and CRF tests were performed before and after intervention. Within- and between-group differences were compared. RESULTS A total of 13 (38%) and 4 (66%) children had MASLD by MRI-PDFF (IHTG ≥ 5%) in the HIIT and control groups, respectively. The implemented HIIT protocol had no impact on CRF or IHTG (baseline 5.26%, Δ = -0.31 percentage points, 95% CI: -0.77 to 0.15; p = 0.179), but it decreased the 2-h glucose concentration (baseline 116 mg/dL, Δ = -11 mg/dL; 95% CI: -17.6 to -5.5; p < 0.001). When limiting the analysis to participants with MASLD (n = 17), HIIT decreased IHTG (baseline 8.81%, Δ = -1.05 percentage points, 95% CI: -2.08 to -0.01; p = 0.048). Between-group comparisons were not different. CONCLUSIONS The implemented exercise protocol did not reduce IHTG, but it led to modest improvement in markers of cardiometabolic health.
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Affiliation(s)
- Emir Tas
- Department of Pediatrics, University of Pittsburgh College of Medicine, Pittsburgh, Pennsylvania, USA
- Division of Endocrinology and Diabetes, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
| | - Reid D Landes
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Eva C Diaz
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Shasha Bai
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Xiawei Ou
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Robert Buchmann
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Xiaoxu Na
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Radhika Muzumdar
- Department of Pediatrics, University of Pittsburgh College of Medicine, Pittsburgh, Pennsylvania, USA
- Division of Endocrinology and Diabetes, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Elisabet Børsheim
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, USA
| | - Jonathan A Dranoff
- Center for Childhood Obesity Prevention, Arkansas Children's Research Institute, Little Rock, Arkansas, USA
- VA Connecticut Health Center, West Haven, Connecticut, USA
- Section of Digestive Diseases, Yale School of Medicine, New Haven, Connecticut, USA
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Diaz EC, Adams SH, Weber JL, Cotter M, Børsheim E. Elevated LDL-C, high blood pressure, and low peak V ˙ O 2 associate with platelet mitochondria function in children-The Arkansas Active Kids Study. Front Mol Biosci 2023; 10:1136975. [PMID: 37033448 PMCID: PMC10073692 DOI: 10.3389/fmolb.2023.1136975] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/07/2023] [Indexed: 04/11/2023] Open
Abstract
Purpose: To evaluate the association of platelet (PL) mitochondria respiration with markers of cardiovascular health in children ages 7-10 years. Methods: PL mitochondrial respiration (n = 91) was assessed by high resolution respirometry (HRR): Routine (R) respiration, complex (C) I linked respiration (CI), and maximal uncoupled electron transport capacity of CII (CIIE) were measured. The respiratory control ratio (RCR) was calculated as the ratio of maximal oxidative phosphorylation capacity of CI and CI leak respiration (PCI/LCI). Peak V ˙ O2 (incremental bike test) and body composition (dual-energy X-ray absorptiometry) were measured. Multiple generalized linear regression analysis was used to model the association of measures by HRR with variables of interest: adiposity, low-density lipoprotein (LDL-C) and triglyceride (TG) status (normal vs. elevated) HOMA2-IR, blood pressure status (normal vs. high), and demographics. Results: R and CI-linked respiration positively associated with adiposity, high blood pressure (HBP), and peak V ˙ O2. R and CI-linked respiration had inverse association with age and elevated LDL-C. CIIE was higher in children with elevated LDL-C (log-β = -0.54, p = 0.010). HBP and peak V ˙ O2 interacted in relation to RCR (log-β = -0.01, p = 0.028). Specifically, RCR was lowest among children with HBP and low aerobic capacity (i.e., mean peak V ˙ O2 -1SD). HOMA2-IR did not associate with measures of PL mitochondria respiration. Conclusion: In PL, R and CI-linked mitochondrial respiration directly associate with adiposity, peak V ˙ O2 and HBP. Elevated LDL-C associates with lower CI-linked respiration which is compensated by increasing CII respiration. PL bioenergetics phenotypes in children associate with whole-body metabolic health status.
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Affiliation(s)
- Eva C. Diaz
- Arkansas Children’s Nutrition Center, Little Rock, AR, United States
- Arkansas Children’s Research Institute, Little Rock, AR, United States
- Department of Pediatrics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- *Correspondence: Eva C. Diaz,
| | - Sean H. Adams
- Department of Surgery, and Center for Alimentary and Metabolic Science, University of California, Davis, School of Medicine, Sacramento, CA, United States
| | - Judith L. Weber
- Arkansas Children’s Research Institute, Little Rock, AR, United States
- Department of Nursing Science, College of Nursing, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Matthew Cotter
- Arkansas Children’s Nutrition Center, Little Rock, AR, United States
| | - Elisabet Børsheim
- Arkansas Children’s Nutrition Center, Little Rock, AR, United States
- Arkansas Children’s Research Institute, Little Rock, AR, United States
- Department of Pediatrics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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Tas E, Bai S, Mak D, Diaz EC, Dranoff JA. Obesity, but not glycemic control, predicts liver steatosis in children with type 1 diabetes. J Diabetes Complications 2022; 36:108341. [PMID: 36345110 DOI: 10.1016/j.jdiacomp.2022.108341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/30/2022] [Accepted: 10/23/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Nonalcoholic fatty liver disease (NAFLD), the most common liver disease in children, is strongly associated with obesity and insulin resistance. Although type 1 diabetes (T1D) is characterized by insulin deficiency, increasing obesity rates among children with T1D is a major risk factor for NAFLD in this patient population. Predisposing factors for NAFLD in children with T1D are not known. STUDY DESIGN This is a cross-sectional study comparing children with T1D across the range of body mass index (BMI) to the BMI-matched obese group without T1D. Hepatic steatosis was semi-quantitatively measured via the vibration-controlled transient elastogram (VCTE) method. Linear regression analysis was performed to assess the relationship between controlled-attenuated parameter (CAP) scores and clinical parameters. Receiver-operator curve (ROC) analysis was used to evaluate the diagnostic performance of several clinical parameters against NAFLD status determined via CAP. RESULTS Two-thirds of subjects with obesity had CAP scores suggestive of NAFLD, while 16 % (n = 6) of T1D patients without obesity had elevated CAP. Obese subjects were different from non-obese subjects in many laboratory and clinical characteristics, regardless of T1D status. CAP score was significantly associated with BMI, HDL-Cholesterol (HDL-c), and HbA1c in all subjects as well as the T1D-only subgroup. Among subjects with obesity only, age, HDL-cand ALT were the most significant predictors. Diagnostic performance of BMI, HDL-c, and BMI/HDL ratio were in the good to the excellent range for predicting NAFLD among all subjects, while performance varied for T1D-only or obesity-only groups. CONCLUSION The clinical and imaging findings of children with T1D and obesity are comparable to non-diabetic children with a similar degree of obesity. Obesity is the major risk factor for NAFLD in pediatric T1D. BMI, HDL-c, and BMI/HDL ratio may be helpful markers to determine further workup for NAFLD in children with T1D, particularly those with obesity.
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Affiliation(s)
- Emir Tas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Endocrinology and Diabetes, Arkansas Children's Hospital, Little Rock, AR, USA; Arkansas Children's Nutrition Center, Little Rock, AR, USA; Arkansas Children's Research Institute, Little Rock, AR, USA.
| | - Shasha Bai
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Daniel Mak
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Endocrinology and Diabetes, Arkansas Children's Hospital, Little Rock, AR, USA
| | - Eva C Diaz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Children's Nutrition Center, Little Rock, AR, USA; Arkansas Children's Research Institute, Little Rock, AR, USA
| | - Jonathan A Dranoff
- Arkansas Children's Research Institute, Little Rock, AR, USA; VA Connecticut Health Center, West Haven, CT, USA; Secton of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA
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Diaz EC, Williams DK, Cotter M, Sims CR, Wolfe RR, Andres A, Børsheim E. Breastfeeding duration modifies the association between maternal weight status and offspring dietary palmitate oxidation. Am J Clin Nutr 2022; 116:404-414. [PMID: 35404455 PMCID: PMC9348976 DOI: 10.1093/ajcn/nqac097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Offspring of obese rodents develop a metabolic phenotype that favors fat deposition. Data regarding the impact of maternal obesity programing of offspring fuel usage in humans is scarce. OBJECTIVE The objective of this study was to explore the association between maternal weight status and dietary palmitate oxidation (DPO) in 2-y-old offspring, taking into consideration potential confounders and modifiers. METHODS Women (n = 56) were enrolled by the first trimester of gestation. Maternal physical activity (PA; measured with accelerometers) at enrollment and gestational weight gain (GWG) were measured. Offspring sex, race, and breastfeeding (BF) duration were self-reported. Human milk (HM) composition was determined at 6 mo postpartum. At age 2 y, dietary quality [healthy eating index (HEI)] and parental feeding practices [Child Feeding Questionnaire (CFQ)] were assessed. DPO in 2-y-olds (2-yo-DPO) was measured using deuterated palmitic acid. Generalized linear regression analysis was used to model the associations of 2-yo-DPO with maternal weight status [normal weight (NW), BMI <25 (in kg/m2) compared with excessive weight (EW), BMI ≥25]. RESULTS DPO was higher in offspring of women with EW compared with NW (2.1 ± 1.2%/h compared with 1.4 ± 0.7%/h, P = 0.03). Maternal weight status interacted with BF duration in association with 2-yo-DPO (log ß: 0.05, P = 0.04). Specifically, 2-yo-DPO was higher in the EW compared with NW group if BF duration was ≥9 mo. HM insulin (log ß: 0.35, P = 0.002) and HM leptin (log ß: 0.81, P = 0.001) concentrations directly associated with 2-yo-DPO. PA (log ß: 0.06, P = 0.013), parental feeding restriction (log ß: 0.05, P < 0.0001), and male sex (log ß: 0.54, P < 0.001) were positively associated with 2-yo-DPO. HEI was negatively associated with 2-yo-DPO (log ß:-0.03, P < 0.0001). CONCLUSIONS Higher 2-yo-DPO in offspring of women with EW compared with NW were driven by BF duration. Higher HM insulin and leptin concentrations in women with EW may explain these finding. More studies are needed to confirm these results. This trial was registered at clinicaltrials.gov as NCT03281850.
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Affiliation(s)
- Eva C Diaz
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Arkansas Children's Research Institute, Little Rock, AR, USA
- Department of Pediatrics, Little Rock, AR, USA
- Department of Biostatistics, Colleges of Medicine and Public Health, Little Rock, AR, USA
- UAMS, Little Rock, AR, USA
| | - David K Williams
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Department of Biostatistics, Colleges of Medicine and Public Health, Little Rock, AR, USA
- UAMS, Little Rock, AR, USA
| | - Matthew Cotter
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Arkansas Children's Research Institute, Little Rock, AR, USA
| | - Clark R Sims
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- UAMS, Little Rock, AR, USA
| | - Robert R Wolfe
- UAMS, Little Rock, AR, USA
- Department of Geriatrics/Reynolds Institute on Aging, Colleges of Medicine and Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA, Little Rock, AR, USA
| | - Aline Andres
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Department of Pediatrics, Little Rock, AR, USA
- UAMS, Little Rock, AR, USA
| | - Elisabet Børsheim
- Arkansas Children's Nutrition Center, Little Rock, AR, USA
- Arkansas Children's Research Institute, Little Rock, AR, USA
- Department of Pediatrics, Little Rock, AR, USA
- UAMS, Little Rock, AR, USA
- Department of Geriatrics/Reynolds Institute on Aging, Colleges of Medicine and Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA, Little Rock, AR, USA
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Diaz EC, Williams DK, Howie EK, Borsheim E, Andres A. Maternal adiposity inversely associates with physical activity in 2‐year‐old girls. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r6006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eva C. Diaz
- PediatricsArkansas Children's Nutrition CenterLittle RockAR
- Arkansas Children's Research InstituteLittle RockAR
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle Rock ARLittle RockAR
| | - David K. Williams
- Department of Biostatistics in the Colleges of Medicine and Public HealthUniversity of Arkansas for Medical SciencesLittle Rock ARDepartment of Biostatistics in the Colleges of Medicine and Public Health at the University of Arkansas for Medical SciencesLittle RockAR
| | | | - Elisabet Borsheim
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle Rock ARLittle RockAR
- PediatricsArkansas Children's Research InstituteLittle RockAR
- Arkansas Children's Nutrition CenterLittle RockAR
| | - Aline Andres
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle Rock ARLittle RockAR
- Arkansas Children's Nutrition CenterLittle RockAR
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Diaz EC, Weber JL, Adams SH, Young CG, Bai S, Børsheim E. Cardiorespiratory Fitness Associates with Blood Pressure and Metabolic Health of Children-The Arkansas Active Kids Study. Med Sci Sports Exerc 2021; 53:2225-2232. [PMID: 34280939 PMCID: PMC8516679 DOI: 10.1249/mss.0000000000002701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION High blood pressure (HBP) in children causes preclinical damage to the heart and accelerates atherosclerosis. Current pharmacological treatments have limited ability to prevent end-organ damage, particularly that of the kidneys. A contrasting element between adult versus pediatric HPB treatment is the emphasis in adults on exercise regimens that target increments in cardiorespiratory fitness (CRF; peak oxygen consumption [V˙O2peak]). The aim of this study was to evaluate the association of CRF with blood pressure percentiles and blood pressure status in children with normal and excessive adiposity (NA vs EA). An exploratory aim was to measure associations of CRF with (a) other cardiovascular disease risk factors commonly found in children with HBP and (b) kidney function. METHODS Children (n = 211) attended one study visit. CRF was measured using an incremental bike test and body composition by dual-energy x-ray absorptiometry. Fat-free mass (FFM) index was calculated as kilograms of FFM per square meter. Multiple logistic and linear regression analyses were used to model the probability of HBP and other variables of interest (plasma lipids, HOMA2-IR, alanine aminotransferase, and estimated glomerular filtration rate) against V˙O2peak. RESULTS CRF interacted with adiposity status in predicting the probability of HBP. Each additional milliliter per minute per FFM index in V˙O2peak decreased the odds of HBP by 8% in the EA group only (odds ratio = 0.92, 95% confidence interval = 0.87-0.99). Systolic and diastolic blood pressure percentiles decreased, and estimated glomerular filtration rate increased with increasing CRF in both adiposity-level groups. HOMA2-IR and alanine aminotransferase decreased with increasing CRF in children with EA only. CONCLUSIONS Higher CRF associated with decreased probability of clinical HBP, lower insulin resistance, and improved liver function in children with EA. Yet blood pressure percentiles and kidney function improved with increasing CRF irrespective of adiposity status.
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Hudson JL, Baum JI, Diaz EC, Børsheim E. Dietary Protein Requirements in Children: Methods for Consideration. Nutrients 2021; 13:nu13051554. [PMID: 34063030 PMCID: PMC8147948 DOI: 10.3390/nu13051554] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/20/2021] [Accepted: 04/29/2021] [Indexed: 12/14/2022] Open
Abstract
The current protein requirement estimates in children were largely determined from studies using the nitrogen balance technique, which has been criticized for potentially underestimating protein needs. Indeed, recent advances in stable isotope techniques suggests protein requirement as much as 60% higher than current recommendations. Furthermore, there is not a separate recommendation for children who engage in higher levels of physical activity. The current evidence suggests that physical activity increases protein requirements to support accretion of lean body masses from adaptations to exercise. The indicator amino acid oxidation and the 15N-end product methods represent alternatives to the nitrogen balance technique for estimating protein requirements. Several newer methods, such as the virtual biopsy approach and 2H3-creatine dilution method could also be deployed to inform about pediatric protein requirements, although their validity and reproducibility is still under investigation. Based on the current evidence, the Dietary Reference Intakes for protein indicate that children 4–13 years and 14–18 years require 0.95 and 0.85 g·kg−1·day−1, respectively, based on the classic nitrogen balance technique. There are not enough published data to overturn these estimates; however, this is a much-needed area of research.
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Affiliation(s)
- Joshua L. Hudson
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (E.C.D.); (E.B.)
- Arkansas Children’s Nutrition Center, Little Rock, AR 72202, USA
- Arkansas Children’s Research Institute, Little Rock, AR 72202, USA
- Correspondence:
| | - Jamie I. Baum
- Center for Human Nutrition, Department of Food Science, University of Arkansas System Division of Agriculture, Fayetteville, AR 72704, USA;
| | - Eva C. Diaz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (E.C.D.); (E.B.)
- Arkansas Children’s Nutrition Center, Little Rock, AR 72202, USA
- Arkansas Children’s Research Institute, Little Rock, AR 72202, USA
| | - Elisabet Børsheim
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (E.C.D.); (E.B.)
- Arkansas Children’s Nutrition Center, Little Rock, AR 72202, USA
- Arkansas Children’s Research Institute, Little Rock, AR 72202, USA
- Reynolds Institute on Aging, Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Diaz EC, Weber JL, Adams S, Catarina YG, Shasha B, Børsheim E. Blood Pressure, Fitness, And Fatness In Children The Arkansas Active Kids Study. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000686524.95720.9b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Allman BR, Diaz EC, Andres A, Børsheim E. Divergent Changes in Serum Branched-Chain Amino Acid Concentrations and Estimates of Insulin Resistance throughout Gestation in Healthy Women. J Nutr 2020; 150:1757-1764. [PMID: 32275314 PMCID: PMC7330471 DOI: 10.1093/jn/nxaa096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/11/2020] [Accepted: 03/17/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Branched-chain amino acid (BCAA) concentrations in the blood have been correlated with insulin resistance, but this relation throughout gestation (period in which insulin resistance typically increases) is unclear. OBJECTIVE The objective of this study was to determine the associations between changes in BCAA concentrations and estimates of insulin resistance throughout gestation. METHODS Serum BCAA (Leu, Ile, Val) concentrations and insulin resistance/sensitivity [i.e., homeostatic model assessment-2 of insulin resistance (HOMA2-IR), estimated metabolic clearance rate (MCR) of glucose, and estimated first- and second-phase insulin responses] were assessed at early (EP; 8.5 ± 0.2 wk) and/or late (LP; 29.2 ± 0.8 wk) pregnancy in 53 healthy women from the Glowing cohort. Adjusted Spearman correlations were used to evaluate the association between BCAA and insulin resistance/sensitivity measures at EP and LP, adjusted for body fat percentage and gestational weight gain (GWG). A multiple linear regression analysis was used to assess the association between changes in HOMA2-IR and BCAAs throughout gestation. Groups were made post hoc based on the mean percentage change (10% decrease) in Leu throughout gestation, creating a group with a ≥10% decrease in LeuLP-EP (BELOW) and a <10% decrease in LeuLP-EP (ABOVE), and Student's t tests were performed to assess differences between groups. RESULTS Leu and Ile concentrations positively correlated with HOMA2-IR at both time points, but these relations at EP disappeared/weakened when adjusted for body fat percentage. From EP to LP, the change in Leu (LeuLP-EP) was negatively associated with the change in HOMA2-IR (HOMA2-IRLP-EP) (β = -0.037, P = 0.006). MCR was lower in the BELOW group compared with the ABOVE group, whereas there was no difference in HOMA2-IR between groups. CONCLUSIONS In this pregnancy cohort, BCAA concentrations decreased throughout gestation, whereas the mean insulin resistance did not change. These data do not support a connection between changes in blood BCAA concentrations and estimates of insulin resistance in pregnant women. This trial is registered at clinicaltrials.gov as NCT01131117.
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Affiliation(s)
| | - Eva C Diaz
- Arkansas Children's Nutrition Center, Little Rock, AR, USA,Arkansas Children's Research Institute, Little Rock, AR, USA,Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Aline Andres
- Arkansas Children's Nutrition Center, Little Rock, AR, USA,Arkansas Children's Research Institute, Little Rock, AR, USA,Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Lavefve L, Brownmiller C, Howard L, Reeves D, Adams SH, Chen JR, Diaz EC, Mauromoustakos A. Changes in Polyphenolics during Storage of Products Prepared with Freeze-Dried Wild Blueberry Powder. Foods 2020; 9:foods9040466. [PMID: 32283703 PMCID: PMC7231037 DOI: 10.3390/foods9040466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/02/2020] [Accepted: 04/06/2020] [Indexed: 12/18/2022] Open
Abstract
Wild blueberry (WBB) powder can be added to the formulation of foods to encourage consumption of health-promoting polyphenolics, but the stability of polyphenolics throughout storage is important. We determined the stability of polyphenolics in five products (ice pop, oatmeal bar, graham cracker cookie, juice, and gummy product) prepared with WBB powder. Samples stored at 21 °C, 4.4 °C, or −20 °C (ice pops only) were analyzed at 0, 2, 4, 6, and 8 weeks for polyphenolic content and percent polymeric color. Total anthocyanins decreased over storage and storage temperatures in all products. However, the ice pop and the refrigerated juice both retained over 90% of their initial total anthocyanin content. The refrigerated oatmeal bar also showed good retention of anthocyanins (86%), but the gummy product retained only 43% and 51% when stored at 4.4 °C or 21 °C, respectively. The lower amount of polyphenolic compounds recovered in the gummies stored at 4.4 °C compared to 21 °C may be attributed to reduced extraction efficiency as a result of gel hardening at refrigerated temperature. Chlorogenic acid and flavonols were generally more stable than anthocyanins throughout storage.
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Affiliation(s)
- Laura Lavefve
- Department of Food Science, University of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704, USA
| | - Cindi Brownmiller
- Department of Food Science, University of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704, USA
| | - Luke Howard
- Department of Food Science, University of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704, USA
| | - Donovon Reeves
- Department of Food Science, University of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704, USA
| | - Sean H Adams
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
- Arkansas Children's Nutrition Center, 15 Children's Way, Little Rock, AR 72202, USA
| | - Jin-Ran Chen
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
- Arkansas Children's Nutrition Center, 15 Children's Way, Little Rock, AR 72202, USA
| | - Eva C Diaz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
- Arkansas Children's Nutrition Center, 15 Children's Way, Little Rock, AR 72202, USA
- Arkansas Children's Research Institute, 1 Children's Way, Little Rock, AR 72202, USA
| | - Andy Mauromoustakos
- Agricultural Statistics Lab, 104 Agricultural Annex, University of Arkansas, Fayetteville, AR 72701, USA
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Diaz EC, Cleves MA, DiCarlo M, Sobik SR, Ruebel ML, Thakali KM, Sims CR, Dajani NK, Krukowski RA, Børsheim E, Badger TM, Shankar K, Andres A. Parental adiposity differentially associates with newborn body composition. Pediatr Obes 2020; 15:e12596. [PMID: 31856430 PMCID: PMC7367307 DOI: 10.1111/ijpo.12596] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/21/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Maternal obesity increases offspring's obesity risk. However, studies have not often considered maternal metabolic and exercise patterns as well as paternal adiposity as potential covariates. OBJECTIVE To assess the relationship between parental and newborn adiposity. METHODS Participants were mother-child pairs (n = 209) and mother-father-offspring triads (n = 136). Parental (during gestation) and offspring (2 weeks old) percent fat mass (FM) were obtained using air displacement plethysmography. Maternal race, age, resting energy expenditure (indirect calorimetry), physical activity (accelerometry), gestational weight gain (GWG), gestational age (GA), delivery mode, infant's sex and infant feeding method were incorporated in multiple linear regression analyses. The association between parental FM and offspring insulin-like growth factor 1 (IGF-1) was assessed at age 2 years. RESULTS Maternal adiposity was positively-associated with male (β = 0.11, P = .015) and female (β = 0.13, P = .008) infant FM, whereas paternal adiposity was negatively-associated with male newborn adiposity (β = -0.09, P = .014). Breastfeeding, female sex, GA and GWG positively associated with newborn adiposity. Vaginal and C-section delivery methods associated with greater adiposity than vaginal induced delivery method. Plasma IGF-1 of 2-year-old boys and girls positively associated with their respective fathers' and mothers' FM. CONCLUSIONS Maternal and paternal adiposity differentially associate with newborn adiposity. The mechanisms of this finding remain to be determined.
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Affiliation(s)
- Eva C. Diaz
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Arkansas Children’s Research Institute, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Mario A. Cleves
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Marisha DiCarlo
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | | | - Meghan L. Ruebel
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Keshari M. Thakali
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Clark R. Sims
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Nafisa K. Dajani
- Department of Obstetrics and Gynecology at the University of Arkansas for Medical Sciences, Little Rock, AR
| | - Rebecca A. Krukowski
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Elisabet Børsheim
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Arkansas Children’s Research Institute, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Thomas M. Badger
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Kartik Shankar
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
| | - Aline Andres
- Arkansas Children’s Nutrition Center, Little Rock, AR.,Department of Pediatrics, Little Rock, AR
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Heard-Lipsmeyer ME, Diaz EC, Sims CR, Sobik SR, Ruebel ML, Thakali KM, Krukowski RA, Cleves M, Børsheim E, Shankar K, Andres A. Maternal Adiposity is Associated with Fat Mass Accretion in Female but not Male Offspring During the First 2 Years of Life. Obesity (Silver Spring) 2020; 28:624-630. [PMID: 32030918 PMCID: PMC7042062 DOI: 10.1002/oby.22735] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 11/02/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE This study investigated which antenatal and postnatal factors determine offspring adiposity during the first 2 years of life. METHODS Participants were mother and child pairs (N = 224). Offspring percent fat mass (%FM) was obtained using quantitative nuclear magnetic resonance at 11 time points between ages 0.5 and 24 months. Independent variables included race, age, gestational weight gain, first-trimester %FM, delivery mode, gestational measures of resting energy expenditure, respiratory exchange ratio, physical activity, serum cytokines and lipids, and dietary intake for the mothers, as well as sex, birth weight and length, breastfeeding duration, and physical activity at age 2 years for the children. Linear mixed models were used to construct the best-fitted models for the entire cohort and for each sex. RESULTS Maternal %FM (P = 0.006), high-density lipoprotein (HDL) (P < 0.001), and breastfeeding duration (P = 0.023) were positively associated with female offspring adiposity, whereas maternal dietary fiber intake (P = 0.016) had a negative association. Birth weight (P = 0.004), maternal HDL (P = 0.013), and breastfeeding duration (P = 0.015) were all positively associated with male offspring adiposity. CONCLUSIONS Antenatal and postnatal factors differentially impact male and female offspring adiposity during the first 2 years of life.
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Affiliation(s)
- Melissa E. Heard-Lipsmeyer
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Division of Cell Biology and Physiology, Edward Via College of Osteopathic Medicine-Louisiana Campus, Monroe, Louisiana, USA
| | - Eva C. Diaz
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children’s Research Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Clark R. Sims
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Sarah R. Sobik
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Meghan L. Ruebel
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Animal Science and Reproductive and Developmental Sciences Program, Michigan State University, East Lansing, Michigan, USA
| | - Keshari M. Thakali
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Rebecca A. Krukowski
- Center for Population Sciences, Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Mario Cleves
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics, University of South Florida, Tampa, Florida, USA
| | - Elisabet Børsheim
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children’s Research Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Kartik Shankar
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Aline Andres
- Arkansas Children’s Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Department of Pediatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
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14
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Tas E, Bai S, Ou X, Mercer K, Lin H, Mansfield K, Buchmann R, Diaz EC, Oden J, Børsheim E, Adams SH, Dranoff J. Fibroblast Growth Factor-21 to Adiponectin Ratio: A Potential Biomarker to Monitor Liver Fat in Children With Obesity. Front Endocrinol (Lausanne) 2020; 11:654. [PMID: 33071964 PMCID: PMC7533567 DOI: 10.3389/fendo.2020.00654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/11/2020] [Indexed: 01/12/2023] Open
Abstract
Background: There is a pressing need for effective and non-invasive biomarkers to track intrahepatic triglyceride (IHTG) in children at-risk for non-alcoholic fatty liver disease (NAFLD), as standard-of-care reference tools, liver biopsy and magnetic resonance imaging (MRI), are impractical to monitor the course disease. Objective: We aimed to examine the association between serum fibroblast growth factor (FGF)-21 to adiponectin ratio (FAR) and IHTG as assessed by MRI in children with obesity. Methods: Serum FGF21 and adiponectin levels and IHTG were measured at two time points (baseline, 6 months) in obese children enrolled in a clinical weight loss program. The association between percent change in FAR and IHTG at final visit was examined using a multiple linear regression model. Results: At baseline, FAR was higher in the subjects with NAFLD (n = 23, 35.8 ± 41.9 pg/ng) than without NAFLD (n = 35, 19.8 ± 13.7 pg/ng; p = 0.042). Forty-eight subjects completed both visits and were divided into IHTG loss (≥1% reduction than baseline), no change (within ±1% change), and gain (≥1% increase than baseline) groups. At 6 months, the percent change in FAR was different among the three groups (p = 0.005). Multiple linear regression showed a positive relationship between percent change in FAR and the final liver fat percent in sex and pubertal stage-similar subjects with NAFLD at baseline (slope coefficient 6.18, 95% CI 1.90-10.47, P = 0.007), but not in those without NAFLD. Conclusions: Higher value in percent increase in FAR is positively associated with higher level of IHTG percent value at 6 months in children with baseline NAFLD. FAR could be a potential biomarker to monitor the changes in IHTG in children with NAFLD.
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Affiliation(s)
- Emir Tas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Endocrinology and Diabetes, Arkansas Children's Hospital, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
- *Correspondence: Emir Tas
| | - Shasha Bai
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Xiawei Ou
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Kelly Mercer
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Haixia Lin
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Kori Mansfield
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Robert Buchmann
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Eva C. Diaz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Jon Oden
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Endocrinology and Diabetes, Arkansas Children's Hospital, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
| | - Elisabet Børsheim
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Sean H. Adams
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Arkansas Children's Nutrition Center, Little Rock, AR, United States
| | - Jonathan Dranoff
- Arkansas Children's Research Institute, Little Rock, AR, United States
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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15
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Rose S, Carvalho E, Diaz EC, Cotter M, Bennuri SC, Azhar G, Frye RE, Adams SH, Børsheim E. A comparative study of mitochondrial respiration in circulating blood cells and skeletal muscle fibers in women. Am J Physiol Endocrinol Metab 2019; 317:E503-E512. [PMID: 31211617 DOI: 10.1152/ajpendo.00084.2019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Skeletal muscle mitochondrial respiration is thought to be altered in obesity, insulin resistance, and type 2 diabetes; however, the invasive nature of tissue biopsies is an important limiting factor for studying mitochondrial function. Recent findings suggest that bioenergetics profiling of circulating cells may inform on mitochondrial function in other tissues in lieu of biopsies. Thus, we sought to determine whether mitochondrial respiration in circulating cells [peripheral blood mononuclear cells (PBMCs) and platelets] reflects that of skeletal muscle fibers derived from the same subjects. PBMCs, platelets, and skeletal muscle (vastus lateralis) samples were obtained from 32 young (25-35 yr) women of varying body mass indexes. With the use of extracellular flux analysis and high-resolution respirometry, mitochondrial respiration was measured in intact blood cells as well as in permeabilized cells and permeabilized muscle fibers. Respiratory parameters were not correlated between permeabilized muscle fibers and intact PBMCs or platelets. In a subset of samples (n = 12-13) with permeabilized blood cells available, raw measures of substrate (pyruvate, malate, glutamate, and succinate)-driven respiration did not correlate between permeabilized muscle (per mg tissue) and permeabilized PBMCs (per 106 cells); however, complex I leak and oxidative phosphorylation coupling efficiency correlated between permeabilized platelets and muscle (Spearman's ρ = 0.64, P = 0.030; Spearman's ρ = 0.72, P = 0.010, respectively). Our data indicate that bioenergetics phenotypes in circulating cells cannot recapitulate muscle mitochondrial function. Select circulating cell bioenergetics phenotypes may possibly inform on overall metabolic health, but this postulate awaits validation in cohorts spanning a larger range of insulin resistance and type 2 diabetes status.
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Affiliation(s)
- Shannon Rose
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute, Little Rock, Arkansas
| | - Eugenia Carvalho
- Arkansas Children's Research Institute, Little Rock, Arkansas
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Eva C Diaz
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute, Little Rock, Arkansas
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
| | - Matthew Cotter
- Arkansas Children's Research Institute, Little Rock, Arkansas
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
| | - Sirish C Bennuri
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute, Little Rock, Arkansas
| | - Gohar Azhar
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Richard E Frye
- Department of Neurology, Barrow Neurological Research Institute at Phoenix Children's Hospital, Phoenix, Arizona
- Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona
| | - Sean H Adams
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
| | - Elisabet Børsheim
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute, Little Rock, Arkansas
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
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16
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Diaz EC, Corcoran JF, Johnson EK. Pediatric penile reconstruction using autologous split-thickness skin graft. J Pediatr Urol 2016; 12:185-6. [PMID: 27155806 DOI: 10.1016/j.jpurol.2016.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 02/29/2016] [Indexed: 11/28/2022]
Abstract
This video provides a case report of penis entrapment secondary to excessive skin removal during circumcision. It highlights the technical aspects of pediatric penile reconstruction using autologous split-thickness skin graft (STSG). Key points include: 1. Infection prevention is paramount and antibiotic prophylaxis is routine. 2. The usual harvest site for the STSG is the lateral thigh because of its source of glabrous skin and convenient proximity to the penis. The lateral thigh is also outside of the diapered area, which helps lessen postoperative pain and infectious risks. 3. A dermatome is used to harvest the STSG. Skin thickness for penis coverage at this age is usually 10-12/1000 of an inch. 4. Direct contact of the graft and wound bed is essential for graft uptake. Hemostasis of the wound bed is critical to prevent hematoma formation. Elimination of redundant tissue is also important to ensure maximal contact between the graft and underlying wound bed. 5. A pressure dressing or bolster is used to prevent shear, and provide contact between the graft and wound bed for at least the first 5 days. 6. A semi-occlusive dressing, Tegaderm, was used on the donor site and it is believed that it provides a moist environment conducive for epithelial and dermal healing. 7. Lymphedema can result if excess distal penile skin is not excised. It is prudent to limit the amount of mucosal collar or consider direct anastomosis to the glans.
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Affiliation(s)
- E C Diaz
- Department of Urology, Stanford University Medical Center, 300 Pasteur Drive, Room S-287, Stanford, CA 94305, USA.
| | - J F Corcoran
- Division of Plastic Surgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E Chicago Avenue, Box 93, Chicago, IL 60611, USA
| | - E K Johnson
- Division of Pediatric Urology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 East Chicago Avenue, Box 24, Chicago, IL 60611, USA
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Diaz EC, Lindgren BW, Gong EM. Carbon dioxide laser for detrusor tunnel creation in robot-assisted laparoscopic extravesical ureteral reimplant. J Pediatr Urol 2014; 10:1283.e1-2. [PMID: 25168317 DOI: 10.1016/j.jpurol.2014.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 07/21/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Demonstrate and report initial results using a carbon dioxide (CO2) laser for detrusor tunnel creation in robot-assisted laparoscopic extravesical ureteral reimplant (RALUR). METHODS Retrospective chart review was performed for cases of RALUR from 2011 to 2014. Patients undergoing complex reconstruction (ureteral tailoring, dismembered reimplant, concomitant ureteroureterostomy), and those who had incomplete follow-up were excluded. Variables, including use of the CO2 laser, were collected and correlated with outcomes. RESULTS 23 patients representing 40 ureteral units were included for analysis. A CO2 laser was used in 9/23 (39%) patients and 16/40 (40%) ureteral units. Intraoperative mucosotomy was reported in 3/14 (21%) patients for the electrocautery group and 1/9 (11%) patients for the CO2 laser group. Resolution of VUR was observed in 11/14 (79%), and 9/9 (100%) of patients for the electrocautery group and the CO2 laser group, respectively. Two complications were identified in the electrocautery group of patients: ileus (Clavien 2), and transient bilateral ureteral obstruction requiring placement of ureteral stents (Clavien 3B). There were no complications in the CO2 laser group. CONCLUSIONS Creation of the detrusor tunnel with a CO2 laser is safe and effective, and is associated with a lower rate of failure and complication in this cohort.
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Affiliation(s)
- E C Diaz
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Box 24, Chicago, IL 60611, USA.
| | - B W Lindgren
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Box 24, Chicago, IL 60611, USA
| | - E M Gong
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Box 24, Chicago, IL 60611, USA
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18
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Diaz EC, Herndon DN, Porter C, Sidossis LS, Suman OE, Børsheim E. Effects of pharmacological interventions on muscle protein synthesis and breakdown in recovery from burns. Burns 2014; 41:649-57. [PMID: 25468473 DOI: 10.1016/j.burns.2014.10.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/12/2014] [Accepted: 10/15/2014] [Indexed: 01/26/2023]
Abstract
OBJECTIVE The pathophysiological response to burn injury disturbs the balance between skeletal muscle protein synthesis and breakdown, resulting in severe muscle wasting. Muscle loss after burn injury is related to increased mortality and morbidity. Consequently, mitigation of this catabolic response has become a focus in the management of these patients. The aim of this review is to discuss the literature pertaining to pharmacological interventions aimed at attenuating skeletal muscle catabolism in severely burned patients. DATA SELECTION Review of the literature related to skeletal muscle protein metabolism following burn injury was conducted. Emphasis was on studies utilizing stable isotope tracer kinetics to assess the impact of pharmacological interventions on muscle protein metabolism in severely burned patients. CONCLUSION Data support the efficacy of testosterone, oxandrolone, human recombinant growth hormone, insulin, metformin, and propranolol in improving skeletal muscle protein net balance in patients with severe burns. The mechanisms underlying the improvement of protein net balance differ between types and dosages of drugs, but their main effect is on protein synthesis. Finally, the majority of studies have been conducted during the acute hypermetabolic phase of the injury. Except for oxandrolone, the effects of drugs on muscle protein kinetics following discharge from the hospital are largely unknown.
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Affiliation(s)
- Eva C Diaz
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA; Arkansas Children's Nutrition Center, Arkansas Children's Hospital Research Institute, and Dept. of Pediatrics, University of Arkansas for Medical Sciences, 15 Children's Way, Little Rock, AR 72202, USA.
| | - David N Herndon
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA.
| | - Craig Porter
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA.
| | - Labros S Sidossis
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Internal Medicine, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA.
| | - Oscar E Suman
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA.
| | - Elisabet Børsheim
- Metabolism Unit, Shriners Hospitals for Children, 815, Market Street, Galveston, TX 77550, USA; Department of Surgery, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, USA; Arkansas Children's Nutrition Center, Arkansas Children's Hospital Research Institute, and Dept. of Pediatrics, University of Arkansas for Medical Sciences, 15 Children's Way, Little Rock, AR 72202, USA.
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Diaz EC, Tagu D, Martin F. Ribosomal DNA internal transcribed spacers to estimate the proportion of Pisolithus tinctorius and Eucalyptus RNAs in ectomycorrhiza. Appl Environ Microbiol 1997; 63:840-3. [PMID: 9055405 PMCID: PMC168379 DOI: 10.1128/aem.63.3.840-843.1997] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Ectomycorrhiza is a complex association of several types of plant and fungal cells. Differentiation of symbiotic structures is correlated with large changes in mRNA synthesis, leading to novel protein patterns. Quantification of up- and down-regulated specific transcripts is complicated by the intermingling of root and hyphal components. Determination of steady-state levels of symbiosis-regulated mRNA requires a normalization to the housekeeping RNA content of each partner. In this study, the usefulness of the internal transcribed spacer (ITS)-5.8S ribosomal DNAs (rDNAs) as molecular markers of the root colonization by fungal mycelium was assayed. The rDNA ITSs of Pisolithus tinctorius and Eucalyptus globulus were cloned by PCR amplification, and their sequences were determined. They contained the 5.8S rDNAs, and these two probes did not cross-hybridize. Steady-state levels of the ITS-5.8S rRNAs in the vegetative mycelium, in the noninfected root, and in ectomycorrhizas of E. globulus-P. tinctorius 441 were estimated at different stages of development. Colonization of roots by the mycelium provoked a large decrease in the proportion of root rRNAs. At the end of mycorrhiza formation, about 80% of the ectomycorrhizal RNA belonged to the mycobiont. The ITS-5.8S can be used as a specific probe for the estimation of fungal or plant rRNA in the symbiotic tissues and to determine whether an mRNA is down- or up-regulated in ectomycorrhiza.
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Affiliation(s)
- E C Diaz
- Institut National de la Recherche Agronomique (INRA-Nancy), Equipe de Microbiologie Forestière, Champenoux, France
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Diaz EC, Martin F, Tagu D. Eucalypt alpha-tubulin: cDNA cloning and increased level of transcripts in ectomycorrhizal root system. Plant Mol Biol 1996; 31:905-910. [PMID: 8806420 DOI: 10.1007/bf00019477] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Because symbionts are experiencing major morphological changes during ectomycorrhiza development, the expression of genes encoding cytoskeletal proteins is likely altered. To test this contention, we have cloned and characterized in a alpha-tubulin cDNA (EgTubA1) from Eucalyptus globulus. A poorly-aggressive isolate (No. 270) of the ectomycorrhizal basidiomycete Pisolithus tinctorius caused no changes in root transcript levels of EgTubA1, whereas a drastic up-regulation in its expression was observed between 3 to 4 days after contact with the aggressive isolate 441. This enhanced alpha-tubulin expression coincided with the increase lateral root formation induced by fungal colonisation. The changes in alpha-tubulin expression support a role for cytoskeleton components in ectomycorrhiza development.
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MESH Headings
- Amino Acid Sequence
- Basidiomycota/pathogenicity
- Basidiomycota/physiology
- Cloning, Molecular
- DNA, Complementary/genetics
- DNA, Plant/genetics
- Eucalyptus/genetics
- Eucalyptus/microbiology
- Gene Expression Regulation, Plant/physiology
- Molecular Sequence Data
- Plant Roots/metabolism
- Plant Roots/microbiology
- Plants, Medicinal
- RNA, Messenger/biosynthesis
- RNA, Plant/biosynthesis
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Symbiosis
- Transcription, Genetic/physiology
- Tubulin/genetics
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Affiliation(s)
- E C Diaz
- Equipe de Microbiologie Forestière, Centre de Recherches de Nancy, Institut National de la Recherche Agronomique, Champenoux, France
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