1
|
Beba M, Seif-Barghi T, Shab-Bidar S, Yarizadeh H, Tijani AJ, Clark CCT, Djafarian K. The association between the Healthy Eating Index (HEI-2015) score and body composition among Iranian soccer players and referees: a cross-sectional study. J Nutr Sci 2022; 11:e57. [PMID: 35836694 DOI: 10.1017/jns.2022.49] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 12/02/2022] Open
Abstract
For an optimal performance, soccer players and referees need to consume a high-quality diet. The Healthy Eating Index (HEI) is a tool that can estimate diet quality and has been shown to be associated with body composition. The aims of the present study were first to determine the HEI-2015 score of the diets consumed by athletes and second its association with different body composition parameters of athletes. We conducted a cross-sectional study on 198 soccer players and referees. Dietary intakes were recorded using a validated food frequency questionnaire (FFQ), and HEI scores were calculated. Body composition parameters were measured using the bioelectrical impedance analysis. The mean score for the HEI-2015 was 65⋅04. A multiple linear regression model showed significant associations of the HEI-2015 score with percent body fat (PBF), percent muscle mass (PMM), waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) in male soccer players aged <18 years, body mass index (BMI) in male soccer players aged ≥18 years and BMI and waist-to-height ratio (WHtR) in male soccer referees after adjustment for covariates (P < 0⋅05). The mean overall score for the HEI-2015 shows that Iranian soccer players and referees have an acceptable quality of diet. We also found significant associations between the HEI-2015 score and different body composition parameters in male soccer players and referees but we did not find any significant association in female athletes (P > 0⋅05).
Collapse
|
2
|
Brustad N, Chawes BL, Thorsen J, Krakauer M, Lasky-Su J, Weiss ST, Stokholm J, Bønnelykke K, Bisgaard H. High-dose vitamin D supplementation in pregnancy and 25(OH)D sufficiency in childhood reduce the risk of fractures and improve bone mineralization in childhood: Follow-up of a randomized clinical trial. EClinicalMedicine 2022; 43:101254. [PMID: 35005585 PMCID: PMC8718890 DOI: 10.1016/j.eclinm.2021.101254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/18/2021] [Accepted: 12/10/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Exposure to vitamin D in early life has been associated with improved bone mineralization, but no studies have investigated the combined effect of pregnancy supplementation and childhood 25(OH)D concentrations on bone health. METHODS We analyzed the effect of serum 25(OH)D concentrations at age 6 months and 6 years and the combined effect with prenatal high-dose vitamin D (2800 vs. 400 IU/day) on bone mineral density (BMD) and content (BMC) assessed by dual-energy X-ray absorptiometry (DXA) scans at age 3 and 6 years and longitudinal risk of fractures in a double-blinded, randomized clinical trial in the Copenhagen Prospective Studies on Asthma in Childhood 2010 (COPSAC2010) mother-child cohort with enrollment from March 4, 2009, to November 17, 2010, and clinical follow-up until January 31, 2019 (NCT00856947). All participants randomized to intervention and with complete data were included in the analyses. FINDINGS At age 6 months, serum 25(OH)D concentration was measured in 93% (n = 541) of 584 children. Children with sufficient (≥ 75 nmol/l) vs. insufficient (< 75 nmol/l) concentrations did not have lower risk of fractures: incidence rate ratio (95% CI); 0.64 (0.37;1.11), p = 0.11. However, vitamin D sufficient children from mothers receiving high-dose supplementation during pregnancy had a 60% reduced incidence of fractures compared with vitamin D insufficient children from mothers receiving standard-dose: 0.40 (0.19;0.84), p = 0.02.At age 6 years, serum 25(OH)D concentration was measured in 83% (n = 318) of 383 children with available DXA data. Whole-body bone mineralization was higher in vitamin D sufficient children at age 6 years; BMD, adjusted mean difference (aMD) (95% CI): 0.011 g/cm2 (0.001;0.021), p = 0.03, and BMC, aMD: 12.3 g (-0.8;25.4), p = 0.07, with the largest effect in vitamin D sufficient children from mothers receiving high-dose vitamin D supplementation; BMD, aMD: 0.016 g/cm2 (0.002;0.030), p = 0.03, and BMC, aMD: 23.5 g (5.5;41.5), p = 0.01. INTERPRETATION Childhood vitamin D sufficiency improved bone mineralization and in combination with prenatal high-dose vitamin D supplementation reduced the risk of fractures. FUNDING The study was supported by The Lundbeck Foundation R16-A1694, The Danish Ministry of Health 903,516, The Danish Council for Strategic Research 0603-00280B and The European Research Council 946,228.
Collapse
Affiliation(s)
- Nicklas Brustad
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Bo L. Chawes
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jonathan Thorsen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Martin Krakauer
- Department of Clinical Physiology and Nuclear Medicine, Herlev and Gentofte Hospital, University of Copenhagen, Denmark
| | - Jessica Lasky-Su
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Scott T. Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Jakob Stokholm
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Pediatrics, Naestved Hospital, Naestved, Denmark
| | - Klaus Bønnelykke
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hans Bisgaard
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Corresponding author at: COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
| |
Collapse
|
3
|
Grover I, Singh N, Gunjan D, Pandey RM, Chandra Sati H, Saraya A. Comparison of Anthropometry, Bioelectrical Impedance, and Dual-energy X-ray Absorptiometry for Body Composition in Cirrhosis. J Clin Exp Hepatol 2022; 12:467-474. [PMID: 35535105 PMCID: PMC9077186 DOI: 10.1016/j.jceh.2021.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 02/26/2021] [Accepted: 05/29/2021] [Indexed: 12/12/2022] Open
Abstract
Background & aims This study was planned to evaluate triceps skinfold thickness (TSFT), mid-arm muscle circumference (MAMC) and bioelectrical impedance analysis (BIA) for assessing body composition using dual-energy X-ray absorptiometry (DEXA) (reference) and to predict fat mass (FM) and fat-free mass (FFM) in patients with cirrhosis. Methods FM and FFM were assessed by using DEXA and BIA. Skin-fold calliper was used for measuring TSFT, and MAMC was calculated. Bland-Altman plot was used to determine agreement and linear regression analysis for obtaining equations to predict FM and FFM. Results Patients with cirrhosis (n = 302, 241 male, age 43.7 ± 12.0 years) were included. Bland-Altman plot showed very good agreement between BIA and DEXA for the estimation of FM and FFM. Majority of patients were within the limit of agreement: FM (98%) and FFM (96.4%). BIA shows a positive correlation with DEXA:FM (r = 0.73, P ≤ 0.001) and FFM (r = 0.86, P ≤ 0.001). DEXA (FM and FFM) shows a positive correlation with TSFT (r = 0.69, P ≤ 0.01) and MAMC (r = 0.61, P ≤ 0.01). The mean difference between the observed and predicted value of FM and FFM by BIA in the developmental set was 0.01 and 0.05, respectively; whereas in the validation set, it was -0.13 and 0.86, respectively. The mean difference between the observed and predicted value of TSFT and MAMC in the developmental set was 0.43 and 0.07; whereas, in the validation set, it was 0.16 and 0.48, respectively. Conclusion Anthropometry (TSFT and MAMC) and BIA are simple and easy to use and can be a substitute of DEXA for FM and FFM assessment in routine clinical settings in patients with cirrhosis.
Collapse
Key Words
- ALP, alkaline phosphatise
- ALT, alanine aminotransferase
- ANA, anti-nuclear antibody
- ASMA, anti-smooth muscle antibody
- AST, aspartate aminotransferase
- BIA, bioelectrical impedance analysis
- BMC, bone mineral content
- BMI, body mass index
- CTP, Child–Turcotte–Pugh score
- DEXA, dual-energy X-ray absorptiometry
- FFM, fat-free mass
- FM, fat mass
- HBsAg, hepatitis B surface antigen
- MAMC, mid-arm muscle circumference
- TSFT, triceps skinfold thickness
- anthropometric measurements
- anti-HCV, anti-hepatitis C virus
- anti-LKM1, anti-liver kidney microsomal antibody type 1
- bioelectrical impedance analysis
- cirrhosis
- dual-energy X-ray absorptiometry
- nutritional assessment
Collapse
Affiliation(s)
- Indu Grover
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, N. Delhi, India
| | - Namrata Singh
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, N. Delhi, India
| | - Deepak Gunjan
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, N. Delhi, India
| | - Ravindra M. Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, N. Delhi, India
| | - Hem Chandra Sati
- Department of Biostatistics, All India Institute of Medical Sciences, N. Delhi, India
| | - Anoop Saraya
- Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, N. Delhi, India,Address for correspondence: Anoop Saraya, Department of Gastroenterology and Human Nutrition Unit, All India Institute of Medical Sciences, N. Delhi, India.
| |
Collapse
|
4
|
Arasu K, Chang CY, Wong SY, Ong SH, Yang WY, Chong MHZ, Mavinkurve M, Khoo EJ, Chinna K, Weaver CM, Chee WSS. Design and strategies used for recruitment and retention in a double blind randomized controlled trial investigating the effects of soluble corn fiber on bone indices in pre-adolescent children (PREBONE-Kids study) in Malaysia. Contemp Clin Trials Commun 2021; 22:100801. [PMID: 34195468 PMCID: PMC8233130 DOI: 10.1016/j.conctc.2021.100801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 11/30/2022] Open
Abstract
Background Recruitment and retention in longitudinal nutrition intervention studies among children is challenging and scarcely reported. This paper describes the strategies and lessons learned from a 1-year randomized double-blind placebo-controlled trial among pre-adolescent children on the effects of soluble corn fiber (SCF) on bone indices (PREBONE-Kids). Methods Participants (9–11 years old) were recruited and randomized into 4 treatment groups (600 mg calcium, 12 g SCF, 12 g SCF plus 600 mg calcium and placebo). Interventions were consumed as a fruit-flavored powdered drink for 1-year. School-based recruitment was effective due to support on study benefits from parents and teachers, peer influence and a 2-weeks study run-in for participants to assess their readiness to commit to the study protocol. Retention strategies focused on building rapport through school-based fun activities, WhatsApp messaging, providing health screening and travel reimbursements for study measurements. Compliance was enhanced by providing direct on-site school feeding and monthly non-cash rewards. Choice of 2 flavors for the intervention drinks were provided to overcome taste fatigue. Satisfaction level on the manner in which the study was conducted was obtained from a voluntary sub-set of participants. Results The study successfully enrolled 243 participants within 6 months and retained 82.7% of the participants at the end of 1 year, yielding a drop-out rate of 17.3%. Compliance to the intervention drink was 85% at the start and remained at 78.7% at the end of 1 year. More than 95% of the participants provided good feedback on intervention drinks, rapport building activities, communication and overall study conduct. Conclusion Successful strategies focused on study benefits, rapport building, frequent communication using social media and non-cash incentives helped improved compliance and retention rate. The lessons learned to maintain a high retention and compliance rate in this study provide valuable insights for future studies in a similar population. PREBONE-Kids contributes to evidence on the effect of soluble corn fiber on bone indices in pre-adolescent Asian children. School-based recruitment, study nature, perceived benefits and study run-in were effective strategies for recruitment. Rapport building, direct on-site feeding and rewarding protocol adherence were critical for good retention and compliance.
Collapse
Key Words
- 25-OHD, serum 25-hydroxyvitamin D
- BAP, bone-specific alkaline phosphatase
- BMC, bone mineral content
- BMD, bone mineral density
- CTX, carboxy-terminal collagen crosslinks
- Calcium
- Compliance
- DXA, dual-energy X-ray absorptiometry
- MET, total metabolic equivalent
- OC, osteocalcin
- P1NP, procollagen type 1 amino-terminal propeptide
- PBM, peak bone mass
- Pre-adolescent children
- SCF, soluble corn fibre
- Soluble corn fiber
- Study retention
- iPTH, intact parathyroid hormone
Collapse
Affiliation(s)
- Kanimolli Arasu
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Chung Yuan Chang
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Soon Yee Wong
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Shu Hwa Ong
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Wai Yew Yang
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Megan Hueh Zan Chong
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Meenal Mavinkurve
- Department of Paediatrics, School of Medicine, International Medical University, Jalan Rasah, 70300, Seremban, Negeri Sembilan, Malaysia
| | - Erwin Jiayuan Khoo
- Department of Paediatrics, School of Medicine, International Medical University, Jalan Rasah, 70300, Seremban, Negeri Sembilan, Malaysia
| | - Karuthan Chinna
- Faculty of Health & Medical Sciences, School of Medicine, Taylor's University, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia
| | | | - Winnie Siew Swee Chee
- Department of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
| |
Collapse
|
5
|
Khwanchuea R, Punsawad C. Sex differences in the relationship between body composition and biomarkers of bone and fat metabolism in obese boys and girls. Bone Rep 2021; 14:101087. [PMID: 34026951 DOI: 10.1016/j.bonr.2021.101087] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/13/2022] Open
Abstract
Whether a body mass derived from extremes of body weight is beneficial to bone remains controversial. When fat accumulation reaches excessive levels and induces changes in hormonal factors and adipokines, it may affect bone accrual during growth. This study evaluated the relationships between body composition and key biomarkers in relation to bone and fat metabolism in obese Thai boys and girls. Subjects aged 12-14 years were grouped by body mass index (BMI) and percentage of body fat (%Fat). Body composition and heel bone Z-score and speed of sound (SOS) were assessed by bioelectrical impedance analysis and calcaneus bone densitometry, respectively. Serum osteocalcin (OC), adiponectin, leptin, insulin, and 25 hydroxyvitamin D (25(OH)D) were measured by ELISA. Their correlations were analyzed and compared between sexes. The results showed that the obese groups had no differences in mean BMIs and body composition, except that boys had more muscle mass than girls. Boys had lower serum OC and leptin levels than girls. Positive correlations of leptin with %Fat and FM were found in both sexes, while positive associations of %Fat with OC and insulin were found only in boys. Bone Z-score and SOS positively correlated with OC in boys but negatively correlated with 25(OH)D in girls. When classifying the obese group using %Fat ≥25, the positive correlations between %Fat and insulin and the negative associations between %Fat and adiponectin in girls were more pronounced. These results suggest that the associations of body fat and bone parameters with OC, adiponectin, 25(OH)D, and insulin were sex-specific, with greater clarity when %Fat was used instead of BMI to classify obesity.
Collapse
Key Words
- %Fat, percentage of body fat
- 25(OH)D
- 25(OH)D, 25-hydroxyvitamin D
- Adiponectin
- Adolescents
- BMC, bone mineral content
- BMD, bone mineral density
- BMI, body mass index
- BW, body weight
- Body fat percentage
- ELISA, enzyme-linked immunosorbent assay
- FFM, free fat mass
- FFMI, free fat mass index
- FM, fat mass
- FMI, fat mass index
- IR, insulin resistance
- Leptin
- MM, muscle mass
- OC, osteocalcin
- Osteocalcin
- SOS, speed of sound
- aBMD, areal bone mineral density
Collapse
|
6
|
Huang TY, Wu CC, Weng PW, Chen JM, Yeh WL. Effect of ErhBMP-2-loaded β-tricalcium phosphate on ulna defects in the osteoporosis rabbit model. Bone Rep 2020; 14:100739. [PMID: 33364265 PMCID: PMC7750155 DOI: 10.1016/j.bonr.2020.100739] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/27/2020] [Accepted: 12/04/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose Autografts, the gold standard treatment for large bone defects, present complications, especially in conditions with reduced bone-repair capacity, such as osteoporosis. Escherichia coli-derived recombinant human bone morphogenesis protein-2 (ErhBMP-2), was used in this study to improve the osteoinductivity of β-tricalcium phosphate (β-TCP). This study evaluated the bone-repair capacity of ErhBMP-2-loaded β-TCP on osteoporosis rabbit model, relative to the sole use of autograft and β-TCP treatments. Methods The osteoporosis rabbit model was induced through ovariectomy and glucocorticoid dosing; 2-cm segmental ulnar defects were created, which were treated with either autograft, β-TCP alone, or ErhBMP-2-loaded β-TCP or left untreated. The quality of newly formed ulnae was evaluated 8 weeks after ulnar surgery through micro-CT, biomechanical, histological, and histomorphometric assessments. Results The osteoporosis rabbit model was developed and maintained till the end of the study. The maximal load and stiffness in the ErhBMP-2-loaded TCP group were significantly higher than those in the autograft group, whereas the TCP-alone group performed similarly as did the untreated group in the force loading and stiffness tests. According to the micro-CT evaluation, the ErhBMP-2-loaded TCP group had significantly higher bone volume relative to the autograft and TCP-alone groups. Histological assessments revealed better defect bridging and marrow formation in the ErhBMP-2-loaded TCP group relative to the TCP-alone group. Mineral apposition rates were significantly higher in the ErhBMP-2-loaded TCP and autograft groups than in the TCP-alone and untreated groups. Conclusion Relative to autografts, ErhBMP-2-loaded TCP, as an alternative grafting material, provides better or comparable healing on critical-sized long bone defects in the osteoporosis rabbit model. Erh-BMP-2 promoted the bone healing ability of β-TCP in osteoporosis animal model. New bone generated by Erh-BMP-2-loaded β-TCP was stiffer than that generated by autograft. ErhBMP-2-loaded TCP potentially being an alternative grafting material relative to autograft.
Collapse
Affiliation(s)
- Tse-Yin Huang
- Ph.D. Program for Biotech Pharmaceutical Industry, School of Pharmacy, China Medical University, Taichung 40402, Taiwan
| | - Chang-Chin Wu
- Department of Orthopedics, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 10002, Taiwan.,Department of Biomedical Engineering, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan.,Department of Orthopedics, En Chu Kong Hospital, New Taipei City 23702, Taiwan
| | - Pei-Wei Weng
- Department of Orthopaedics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan.,Department of Orthopaedics, Shuang Ho Hospital, Taipei Medical University, Taiwan
| | - Jian-Ming Chen
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital-Linkou, Tao-Yuan 33305, Taiwan
| | - Weng-Ling Yeh
- Department of Orthopedic Surgery, Chang Gung Memorial Hospital-Linkou, Tao-Yuan 33305, Taiwan.,Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| |
Collapse
|
7
|
McBreairty LE, Kazemi M, Chilibeck PD, Gordon JJ, Chizen DR, Zello GA. Effect of a pulse-based diet and aerobic exercise on bone measures and body composition in women with polycystic ovary syndrome: A randomized controlled trial. Bone Rep 2020; 12:100248. [PMID: 32071953 PMCID: PMC7016198 DOI: 10.1016/j.bonr.2020.100248] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/19/2019] [Accepted: 01/21/2020] [Indexed: 12/22/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age, with clinical symptoms including menstrual dysfunction and hyperandrogenemia, as well as insulin resistance which is thought to be a key contributing factor to symptoms. Insulin is also thought to positively affect bone while oligo- and amenorrhea are known to negatively affect bone. Lifestyle modification is the first recommendation to treat symptoms of PCOS; however, little is known about the effect of lifestyle interventions on bone measures in this population. Pulses (e.g., chickpeas, beans, split peas, lentils) have been shown to lower fasting insulin, and the objective of this study was to determine the effect of a pulse-based diet compared to the therapeutic lifestyle changes (TLC) diet on bone measures and body composition in women with PCOS. Women aged 18-35 years with PCOS were randomized to either a pulse-based diet or the TLC diet for 16-weeks while following an aerobic exercise program. Thirty-one in the TLC group and 29 in the pulse group completed dual-energy X-ray absorptiometry analysis following the intervention. After 16-weeks, both groups had a lower BMI, whole body fat mass, and % fat (p < 0.005), with no difference in lean mass. In both groups, lumbar spine bone mineral content (BMC) and density were higher following the intervention (p < 0.05) while femoral neck bone mineral density (BMD) was lower (p < 0.05). Intertrochanteric section modulus improved in both groups while there was a group x time interaction in femoral shaft subperiosteal width which was more favorable in the pulse group (p < 0.05). This study demonstrates that the femoral neck may be compromised during a lifestyle intervention in women with PCOS. Research is warranted to preserve bone health during lifestyle change in women with PCOS.
Collapse
Key Words
- AUC, area under the curve
- BMC, bone mineral content
- BMD, bone mineral density
- BMI, body mass index
- Bone mineral density
- CSA, cross-sectional area
- CSMI, cross-sectional moment of inertia
- DXA, dual-energy X-ray absorptiometry
- FS, femoral shaft
- Hip geometry
- NN, narrow neck
- PCOS, polycystic ovary syndrome
- Polycystic ovary syndrome
- Randomized controlled trial
- SPW, subperiosteal width
- TLC, therapeutic lifestyle changes
- Z, section modulus
Collapse
Affiliation(s)
- Laura E. McBreairty
- College of Pharmacy and Nutrition, 104 Clinic Place, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
| | - Maryam Kazemi
- College of Pharmacy and Nutrition, 104 Clinic Place, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
| | - Philip D. Chilibeck
- College of Kinesiology, Physical Activity Complex, University of Saskatchewan, 87 Campus Drive, Saskatoon, SK S7N 5B2, Canada
| | - Julianne J. Gordon
- College of Kinesiology, Physical Activity Complex, University of Saskatchewan, 87 Campus Drive, Saskatoon, SK S7N 5B2, Canada
| | - Donna R. Chizen
- Obstetrics and Gynecology, College of Medicine, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada
| | - Gordon A. Zello
- College of Pharmacy and Nutrition, 104 Clinic Place, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
| |
Collapse
|
8
|
Monma Y, Shimada Y, Nakayama H, Zang L, Nishimura N, Tanaka T. Aging-associated microstructural deterioration of vertebra in zebrafish. Bone Rep 2019; 11:100215. [PMID: 31388517 PMCID: PMC6676153 DOI: 10.1016/j.bonr.2019.100215] [Citation(s) in RCA: 14] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/07/2019] [Accepted: 07/12/2019] [Indexed: 12/11/2022] Open
Abstract
Zebrafish, a small teleost fish, is currently emerging as an animal model of local and systemic aging. In this study, we assessed age-related degenerative changes in the vertebral bone of zebrafish (3–12 month-post-fertilisation [mpf]) using micro-CT scanning. The bone volume (BV) of the trabecular bone in the male and female fish peaked at 6 mpf and reduced with age. In contrast to BV, bone mineral density and tissue volume did not change after 6 mpf, implying that the total mineral volume in the trabecular area remains unchanged, retaining the strength of vertebra. In addition, we performed micro-structural analysis of the trabecular thickness, trabecular number, and star volume of the tissue space and trabeculae, and found that the size of the trabecular bone reduced with age. Furthermore, aged zebrafish (45 mpf) exhibited ectopic ossification inside or outside of their vertebrae. In summary, we analysed bone structural parameters in adult zebrafish vertebra, which are also used in humans, and demonstrated that aged zebrafish have deteriorated microarchitecture (trabecular thickness and number, tissue space star volume and trabecular star volume) with reduction of trabecular bones, similar to that observed during aging in humans. Zebrafish can be utilised as an animal model to understand the pathology of human bone aging, and the discovery of new therapeutic agents against age-related osteoporosis. We analysed bone structural parameters in adult zebrafish vertebrae. Microstructural changes in aged-zebrafish are similar to those in humans. Aged zebrafish exhibited ectopic ossification inside or outside of their vertebrae.
Collapse
Key Words
- Aging
- BMC, bone mineral content
- BMD, bone mineral density
- BV, bone volume
- CT, Computed Tomography
- FCV, first caudal vertebra
- Micro CT
- Osteoporosis
- TV, tissue volume
- Tb, trabecular bone
- Tb.N, trabecular number
- Tb.Th, trabecular thickness
- Teleost
- V*m, tissue space star volume
- V*tr, trabecular star volume
- mpf, month-post-fertilisation
Collapse
Affiliation(s)
- Yasuyuki Monma
- Department of Systems Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Yasuhito Shimada
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
- Department of Bioinformatics, Mie University Advanced Science Research Promotion Center, Tsu, Mie, Japan
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, Japan
| | - Hiroko Nakayama
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, Japan
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, Japan
| | - Liqing Zang
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, Japan
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, Japan
| | - Norihiro Nishimura
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, Japan
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Mie, Japan
| | - Toshio Tanaka
- Department of Systems Pharmacology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
- Mie University Zebrafish Drug Screening Center, Tsu, Mie, Japan
- Corresponding author at: Department of Systems Pharmacology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan.
| |
Collapse
|
9
|
Tanaka H, Yamashita T, Yoneda M, Takagi S, Miura T. Characteristics of bone strength and metabolism in type 2 diabetic model Tsumura, Suzuki, Obese Diabetes mice. Bone Rep 2018; 9:74-83. [PMID: 30094297 PMCID: PMC6073051 DOI: 10.1016/j.bonr.2018.07.004] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 07/13/2018] [Accepted: 07/19/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Type 2 diabetes mellitus (T2DM) is a metabolic disease characterized by hyperglycemia, hyperinsulinemia, and complications such as obesity and osteoporosis. The Tsumura, Suzuki, Obese Diabetes (TSOD) mouse is an animal model of spontaneous obese T2DM. However, bone metabolism in TSOD mice is yet to be investigated. The objective of the present study was to investigate the effects of T2DM on bone mass, metabolism, microstructure, and strength in TSOD mice. METHODS We determined the following parameters in TSOD mice and Tsumura, Suzuki, Non-obesity (TSNO) mice (as controls): serum glucose levels; serum insulin levels; bone mass; bone microstructure; bone metabolic markers; and bone strength. We also performed the oral glucose tolerance test and examined histological sections of the femur. We compared these data between both groups at pre-diabetic (10 weeks) and established (20 weeks) diabetic conditions. RESULTS Bone strength, such as extrinsic mechanical properties, increased with age in the TSOD mice and intrinsic material properties decreased at both 10 weeks and 20 weeks. Bone resorption marker levels in TSOD mice were significantly higher than those in the control mice at both ages, but there was no significant difference in bone formation markers between the groups. Bone mass in TSOD mice was lower than that in controls at both ages. The trabecular bone volume at the femoral greater trochanter increased with age in the TSOD mice. The femoral mid-diaphysis in TSOD mice was more slender and thicker than that in TSNO mice at both ages. CONCLUSIONS Bone mass of the femur was lower in TSOD mice than in TSNO mice because hyperinsulinemia during pre-diabetic and established diabetic conditions enhanced bone resorption due to high bone turnover. In addition, our data suggest that the bone mass of the femur was significantly reduced as a result of chronic hyperglycemia during established diabetic conditions in TSOD mice. We suggest that bone strength in the femur deteriorated due to the reduction of bone mass and because the femoral mid-diaphysis was more slender in TSOD mice.
Collapse
Key Words
- BMC, bone mineral content
- BMD, bone mineral density
- Bone mass
- Bone metabolism
- Bone microstructure
- Bone strength
- CSMI, cross-sectional moment inertia
- OCN, osteocalcin
- OGTT, oral glucose tolerance test
- PBS, phosphate-buffered saline
- T1DM, type 1 diabetes mellitus
- T2DM, type 2 diabetes mellitus
- TRAcP5b, tartrate-resistant acid phosphatase 5b
- TSNO, Tsumura, Suzuki, non-obesity
- TSOD, Tsumura, Suzuki, Obese Diabetes
- Tsumura, Suzuki, Obese Diabetes mice
- Type 2 diabetes mellitus
- micro-CT, micro-computed tomography
Collapse
Affiliation(s)
- Hiroaki Tanaka
- Graduate School of Health Science Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie 510-0293, Japan
| | - Takenori Yamashita
- Department of Radiological Technology, Faculty of Health Science, Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie 510-0293, Japan
| | - Misao Yoneda
- Department of Clinical Nutrition, Faculty of Health Science, Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie 510-0293, Japan
| | - Satoshi Takagi
- Department of Physical Therapy, Faculty of Health and Medical Sciences, Tokoha University, 1230 Miyakoda, Kitaku, Hamamatsu, Shizuoka, 431-2102, Japan
| | - Toshihiro Miura
- Graduate School of Health Science Suzuka University of Medical Science, 1001-1 Kishioka, Suzuka, Mie 510-0293, Japan
| |
Collapse
|
10
|
Abstract
Intake of high-fat/high-sucrose (HFS) diet or high fat diet influences bone metabolism in young rodents, but its effects on bone properties of aged rodents still remain unclear. This study aimed to examine the effects of HFS diet intake on trabecular bone architecture (TBA) and cortical bone geometry (CBG) in aged rats. Fifteen male Wistar rats over 1 year were randomly divided into two groups. One group was fed a standard laboratory diet (SLD) and the other group was fed a HFS diet for six months. The femur/tibia, obtained from both groups at the end of experimental period, were scanned by micro-computed tomography for TBA/CBG analyses. Serum biochemical analyses were also conducted. Body weight was significantly higher in the HFS group than in the SLD group. In both femur and tibia, the HFS group showed higher trabecular/cortical bone mass in reference to bone mineral content, volume bone mineral density and TBA/CBG parameters compared with the SLD group. In addition, serum calcium, inorganic phosphorus, total protein, triacylglycerol, HDL and TRACP-5b levels were significantly higher in the HFS group than in the SLD group. There were good correlations between body weight and bone parameters in the femur and tibia. These results suggest that HFS diet intake results in higher bone mass in aged rats. Such effects of HFS diet intake might have been induced by increased body weight.
Collapse
Key Words
- ALP, alkaline phosphatase
- Aged rats
- BMC, bone mineral content
- BMD, bone mineral density
- BV, bone volume
- BV/TV, bone volume fraction
- CBG, cortical bone geometry
- CV, cortical bone volume
- CV/(CV + MV), cortical volume fraction
- Ca, calcium
- Conn.D, connectivity density
- Cortical bone geometry
- Ct.Ar, cortical bone sectional area
- Ct.Th, cortical bone thickness
- DXA, dual-energy X-ray absorptiometry
- Ec.Pm, endocortical perimeter
- HDL, high-density lipoprotein cholesterol
- HFD, high fat diet
- HFS, high-fat/high-sucrose
- High-fat sucrose diet
- IP, inorganic phosphorus
- LDL, low-density lipoprotein cholesterol
- MV, medullary volume
- Micro-computed tomography
- OC, osteocalcin
- Ps.Pm, periosteal perimeter
- SLD, standard laboratory diet
- TBA, trabecular bone architecture
- TBPf, trabecular bone pattern factor
- TC, total cholesterol
- TG, triacylglycerol
- TMD, tissue mineral density
- TP, total protein
- TRACP-5b, tartrate-resistant acid phosphatase-5b
- TV, tissue volume
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- Tb.W, trabecular width
- Trabecular bone architecture
- VOI, volume of interest
- micro-CT, x-ray micro-computed tomography
- vBMD, volume BMD
Collapse
Affiliation(s)
- Akira Minematsu
- Department of Physical Therapy, Faculty of Health Science, Kio University, 4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara 635-0832, Japan
| | - Yasue Nishii
- Department of Physical Therapy, Faculty of Health Science, Kio University, 4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara 635-0832, Japan
| | - Susumu Sakata
- Department of Physiology, Nara Medical University, 840 Shijou-cho, Kashihara, Nara 634-8521, Japan
| |
Collapse
|
11
|
Abstract
PURPOSE The Middle East and North Africa (MENA) region registers some of the lowest serum 25‑hydroxyvitamin D [25(OH)D] concentrations, worldwide. We describe the prevalence and the risk factors for hypovitaminosis D, completed and ongoing clinical trials, and available guidelines for vitamin D supplementation in this region. METHODS This review is an update of previous reviews published by our group in 2013 for observational studies, and in 2015 for randomized controlled trials (RCTs) from the region. We conducted a comprehensive search in Medline, PubMed, and Embase, and the Cochrane Library, using MeSH terms and keywords relevant to vitamin D, vitamin D deficiency, and the MENA region, for the period 2012-2017 for observational studies, and 2015-2017 for RCTs. We included large cross-sectional studies with at least 100 subjects/study, and RCTs with at least 50 participants per arm. RESULTS We identified 41 observational studies. The prevalence of hypovitaminosis D, defined as a 25‑hydroxyvitamin D [25(OH)D] level below the desirable level of 20 ng/ml, ranged between 12-96% in children and adolescents, and 54-90% in pregnant women. In adults, it ranged between 44 and 96%, and the mean 25(OH)D varied between 11 and 20 ng/ml. In general, significant predictors of low 25(OH)D levels were female gender, increasing age and body mass index, veiling, winter season, use of sun screens, lower socioeconomic status, and higher latitude.We retrieved 14 RCTs comparing supplementation to control or placebo, published during the period 2015-2017: 2 in children, 8 in adults, and 4 in pregnant women. In children and adolescents, a vitamin D dose of 1000-2000 IU/d was needed to maintain serum 25(OH)D level at target. In adults and pregnant women, the increment in 25(OH)D level was inversely proportional to the dose, ranging between 0.9 and 3 ng/ml per 100 IU/d for doses ≤2000 IU/d, and between 0.1 and 0.6 ng/ml per 100 IU/d for doses ≥3000 IU/d. While the effect of vitamin D supplementation on glycemic indices is still controversial in adults, vitamin D supplementation may be protective against gestational diabetes mellitus in pregnant women. In the only identified study in the elderly, there was no significant difference between 600 IU/day and 3750 IU/day doses on bone mineral density. We did not identify any fracture studies.The available vitamin D guidelines in the region are based on expert opinion, with recommended doses between 400 and 2000 IU/d, depending on the age category, and country. CONCLUSION Hypovitaminosis D is prevalent in the MENA region, and doses of 1000-2000 IU/d may be necessary to reach a desirable 25(OH)D level of 20 ng/ml. Studies assessing the effect of such doses of vitamin D on major outcomes, and confirming their long term safety, are needed.
Collapse
Key Words
- 25(OH)D, 25‑hydroxyvitamin D
- ALKP, alkaline phosphatase
- BMC, bone mineral content
- BMD, bone mineral density
- BMI, body mass index
- CARS, Childhood Autism Rating Scale
- CDC, Centers for Disease Control
- Ca, Calcium
- DEQAS, Vitamin D External Quality Assessment Scheme
- DXA, dual-energy X-ray absorptiometry
- ESCEO, European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis
- GDM, Gestational Diabetes Mellitus
- HOMA-IR, homeostatic model assessment of insulin resistance
- HbA1c, glycated hemoglobin
- Hypovitaminosis D
- ID LC-MS/MS, isotope dilution liquid chromatography - tandem mass spectrometry
- IOM, Institute of Medicine
- KSA, Kingdom of Saudi Arabia
- LCMS/MS, liquid chromatography-tandem mass spectrometry
- MENA, Middle East North Africa
- Middle East and North Africa
- OSTEOS, Lebanese Society for Osteoporosis and Metabolic Bone Disorders
- PO4, phosphorus
- PTH, parathyroid hormone
- Predictors
- RCT, randomized controlled trials
- ROB, risk of bias
- RR, relative risk
- SDp, pooled standard deviation
- T2D, type 2 diabetes
- UAE, United Arab Emirates
- UVB, ultraviolet B
- VDDR2, vitamin d dependent rickets type 2
- VDR, vitamin d receptor
- VDSP, Vitamin D Standardization Program
- Vitamin D assays
- Vitamin D guidelines
- WM, weighted mean
Collapse
Affiliation(s)
- Marlene Chakhtoura
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, American University of Beirut Medical Center, Beirut, P.O. Box: 113-6044/C8, Lebanon
| | | | | | | |
Collapse
|
12
|
Yumol JL, Wakefield CB, Sacco SM, Sullivan PJ, Comelli EM, Ward WE. Bone development in growing female mice fed calcium and vitamin D at lower levels than is present in the AIN-93G reference diet. Bone Rep 2018; 8:229-38. [PMID: 29955642 DOI: 10.1016/j.bonr.2018.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/09/2018] [Accepted: 05/17/2018] [Indexed: 12/31/2022] Open
Abstract
Background The AIN-93G reference (REF) diet is used to allow the comparison within and between studies of different research groups but its levels of vitamin D (vit D) and calcium (Ca) may be higher than required for healthy bone structure and bone mineral density (BMD). Objective To determine if lower dietary levels of Ca (3.5, 3 or 2.5 g Ca/kg diet) at 1 of 2 levels of vit D (100 or 400 IU/kg diet) supports similar development of bone structure and BMD compared to AIN-93G reference (REF) diet in female CD-1 mice at 2 and 4 months of age. Methods Within a trial, weanling female mice (n = 12–15/group) were randomized to 1 of 4 diets until necropsy at 4 months of age: Trial 1: 100 IU vit D/kg + 3.5, 3 or 2.5 g Ca/kg diet or 1000 IU vit D/kg + 5 g Ca/kg diet (REF); and Trial 2: 400 IU vit D/kg + 3.5, 3 or 2.5 g Ca/kg diet or 1000 IU vit D/kg + 5 g/kg diet (REF). At age 2 and 4 months, in vivo bone structure and BMD were assessed using micro-computed tomography (μCT) at the proximal and midpoint tibia. At age 4 months, lumbar vertebra 4 (L4) and mandible structure were analyzed ex vivo, femur strength at midpoint and neck was assessed and serum 25(OH)D3 and PTH were quantified. Results For Trial 1 (100 IU vit D/kg), there were no differences in tibia structure at age 2 and 4 months nor L4 or mandible structure or femur strength at the midpoint or neck at 4 months of age despite lower serum 25(OH)D3 among all groups compared to REF. For Trial 2 (400 IU vit D/kg), mice fed 2.5 g Ca/kg diet had lower (p < 0.05) Ct.Ar/Tt.Ar and Ct.Th at the tibia midpoint compared to REF. Furthermore, Ct.Th. was greater in REF and 3.5 g Ca/kg diet compared to 2.5 g Ca/kg diet at age 2 but not 4 months of age. At L4, BV/TV was lower (p < 0.05) in the 3 g Ca/kg diet group compared to REF at age 4 months. There were no differences among groups for serum 25(OH)D3 or femur strength at the midpoint or neck. Serum PTH was not elevated compared to REF in either Trial. Conclusion Lowering both dietary vit D (100 IU/kg) and Ca (2.5 g/kg) in AIN-93G diet did not result in differences in bone development of female CD-1 mice at early adulthood. Translational relevance of bone studies conducted using the AIN-93G diet may be affected by its high vit D and Ca content.
Collapse
Key Words
- AIN93G
- ANOVA, analysis of variance
- BMC, bone mineral content
- BMD, bone mineral density
- BV/TV, percent bone volume
- Bone mineral density
- Bone structure
- Ca, calcium
- Calcium
- Conn.Dn, connectivity density
- Ct.Ar/Tt.Ar, cortical area fraction
- Ct.Th, cortical thickness
- DA, degree anisotropy
- Ec.Pm, endocortical perimeter
- Ecc, mean eccentricity
- ISO, isoflavones
- L4, lumbar vertebrae 4
- Ma.Ar, medullary area
- Micro-computed tomography
- P, phosphorus
- PBM, peak bone mass
- PTH, parathyroid hormone
- Ps.Pm, periosteum perimeter
- REF, AIN-93G reference diet
- ROI, region of interest
- SEM, standard error mean
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- Vitamin D
- vit D, vitamin D
- μCT, micro computed tomography
Collapse
|
13
|
Taylor S, Hu R, Pacheco E, Locher K, Pyrah I, Ominsky MS, Boyce RW. Differential time-dependent transcriptional changes in the osteoblast lineage in cortical bone associated with sclerostin antibody treatment in ovariectomized rats. Bone Rep 2018; 8:95-103. [PMID: 29955627 DOI: 10.1016/j.bonr.2018.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/15/2018] [Accepted: 03/13/2018] [Indexed: 12/13/2022] Open
Abstract
Inhibition of sclerostin with sclerostin antibody (Scl-Ab) results in stimulation of bone formation on cancellous (Cn), endocortical (Ec), and periosteal (Ps) surfaces in rodents and non-human primates. With long-term dosing of Scl-Ab, the increase in bone formation is not sustained, attenuating first on Cn surfaces and later on Ec and Ps surfaces. In Cn bone, the attenuation in bone formation (self-regulation) is associated with transcriptional changes in the osteocyte (OCy) that would limit mitogenesis and are sustained with continued dosing. The expression changes in Cn OCy occur coincident with a decrease in osteoprogenitor (OP) numbers that may directly or indirectly be a consequence of the transcriptional changes in the OCy to limit OP proliferation. To characterize the Scl-Ab–mediated changes in cortical (Ct) bone and compare these changes to Cn bone, densitometric, histomorphometric, and transcriptional analyses were performed on femur diaphyses from aged ovariectomized rats. Animals were administered 50 mg/kg/wk of Scl-Ab or vehicle for up to 6 months (183 days), followed by a treatment-free period (up to 126 days). Scl-Ab increased Ct mass and area through day 183, which declined slightly when treatment was discontinued. Ps and Ec bone formation was sustained through the dosing on both Ct surfaces, with evidence of a decline in bone formation only at day 183 on the Ec surface. This is in contrast to Cn bone, where reduced bone formation was observed after day 29. TaqMan analysis of 60 genes with functional roles in the bone using mRNA isolated from laser capture micro-dissection samples enriched for Ec osteoblasts and Ct OCy suggest a pattern of gene expression in Ct bone that differed from Cn, especially in the OCy, and that corresponded to observed differences in the timing of phenotypic changes. Notable with Scl-Ab treatment was a “transcriptional switch” in Ct OCy at day 183, coincident with the initial decline in bone formation on the endocortex. A consistent sustained increase of expression for most genes in response to Scl-Ab was observed from day 8 through day 85 at the times of maximal bone formation on both Ct surfaces; however, at day 183, this increase was reversed, with expression of these genes generally returning to control values or decreasing compared to vehicle. Genes exhibiting this pattern included Wnt inhibitors Sost and Dkk1, though both had been up-regulated until the end of dosing in Cn OCy. Changes in cell cycle genes such as Cdkn1a and Ndrg1 in Ct OCy suggested up-regulation of p53 signaling, as observed in Cn OCy; however, unlike in Cn bone, p53 signaling was not associated with decreased bone formation and was absent at day 183, when bone formation began to decline on the Ec surface. These data demonstrate involvement of similar molecular pathways in Ct and Cn bone in response to Scl-Ab but with a different temporal relationship to bone formation and suggest that the specific mechanism underlying self-regulation of Scl-Ab–induced bone formation may be different between Cn and Ct bone. Sclerostin antibody stimulates bone formation that attenuates over time. Attenuation (self-regulation) is delayed in cortical versus cancellous bone. Self-regulation coincides with transcriptional changes in cortical osteocytes. Response of Wnt inhibitors differs between cortical and cancellous bone. Results suggest a distinct mechanism for self-regulation in cortical bone.
Collapse
Key Words
- ANOVA, analysis of variance
- Anabolics
- BMC, bone mineral content
- BMP, bone morphogenetic protein
- BS, bone surface
- Bone
- Cn, cancellous
- Ct, cortical
- Ec, endocortical
- Ec.Pm, endocortical perimeter
- LC, lining cells
- LCM, laser capture micro-dissection
- MS/BS, mineralizing surface
- OB, osteoblast(s)
- OCy, osteocyte(s)
- OP, osteoprogenitor(s)
- OPG, osteoprotegerin
- OVX, ovariectomized
- Osteoporosis
- Ps, periosteal
- Ps.Pm, periosteal perimeter
- RANKL, receptor activator of nuclear factor kappa-B ligand
- Scl-Ab, sclerostin antibody
- Scl-AbVI, 50 mg/kg of a Scl-Ab
- TFP, treatment-free period
- TGF, transforming growth factor
- TP, treatment period
- Therapeutics
- VEH, vehicle
- Wnt signaling
- pQCT, peripheral quantitative computed tomography
- s.c., subcutaneous
Collapse
|
14
|
Muske S, Krishnamurthy S, Kamalanathan SK, Rajappa M, Harichandrakumar KT, Sivamurukan P. Effect of two prophylactic bolus vitamin D dosing regimens (1000 IU/day vs. 400 IU/day) on bone mineral content in new-onset and infrequently-relapsing nephrotic syndrome: a randomised clinical trial. Paediatr Int Child Health 2018; 38:23-33. [PMID: 28466679 DOI: 10.1080/20469047.2017.1319528] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVES To examine the efficacy of two vitamin D dosages (1000 vs. 400 IU/day) for osteoprotection in children with new-onset and infrequently-relapsing nephrotic syndrome (IFRNS) receiving corticosteroids. METHODS This parallel-group, open label, randomised clinical trial enrolled 92 children with new-onset nephrotic syndrome (NS) (n = 28) or IFRNS (n = 64) to receive 1000 IU/day (Group A, n = 46) or 400 IU/day (Group B, n = 46) vitamin D (administered as a single bolus initial supplemental dose) by block randomisation in a 1:1 allocation ratio. In Group A, vitamin D (cholecalciferol in a Calcirol® sachet) was administered in a single stat dose of 84,000 IU on Day 1 of steroid therapy (for new-onset NS), calculated for a period of 12 weeks@1000 IU/day) and 42,000 IU on Day 1 of steroid therapy (for IFRNS, calculated for a period of 6 weeks@1000 IU/day). In Group B, vitamin D (cholecalciferol in a Calcirol® sachet) was administered as a single stat dose of 33,600 IU on Day 1 of steroid therapy (for new-onset NS, calculated for a period of 12 weeks@400 IU/day) and 16,800 IU on Day 1 of steroid therapy (for IFRNS, calculated for a period of 6 weeks@400 IU/day). The proportionate change in bone mineral content (BMC) was analysed in both groups after vitamin D supplementation. RESULTS Of the 92 children enrolled, 84 (n = 42 new onset, n = 42 IFRNS) completed the study and were included in the final analysis. Baseline characteristics including initial BMC, bone mineral density, cumulative prednisolone dosage and serum 25-hydroxycholecalciferol levels were comparable in the two groups. There was a greater median proportionate change in BMC in the children who received 1000 IU/day vitamin D (3.25%, IQR -1.2 to 12.4) than in those who received 400 IU/day vitamin D (1.2%, IQR -2.5 to 3.8, p = 0.048). The difference in proportionate change in BMC was only statistically significant in the combined new-onset and IFRNS, but not for IFRNS alone. There was a greater median proportionate change in serum 25-hydroxycholecalciferol, in the children who received 1000 IU/day vitamin D (20.6%, IQR 14.9-36.75) than in those who received 400 IU/day vitamin D (7.7%, IQR 3.5-18.5, p < 0.01). There was a greater median proportionate change in serum calcium in the children who received 1000 IU/day vitamin D (20%, IQR 13.1-29.0) than in those who received 400 IU/day vitamin D (11.3%, IQR 2.8-25.0, p = 0.03). Despite vitamin D therapy, BMC decreased from the baseline in 15 (32.6%) children receiving 1000 IU/day vitamin D and in 17 (36.9%) children receiving 400 IU/day vitamin D. There were no adverse effects attributable to vitamin D. CONCLUSION The 1000 IU/day dose is marginally more effective than 400 IU/day and it is likely than an even larger dose is required. Further research is required to assess the efficacy and safety of vitamin D doses higher than 1000 IU/day.
Collapse
Affiliation(s)
- Sravani Muske
- a Department of Pediatrics , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - Sriram Krishnamurthy
- a Department of Pediatrics , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - Sadish Kumar Kamalanathan
- b Department of Endocrinology , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - Medha Rajappa
- c Department of Biochemistry , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - K T Harichandrakumar
- d Department of Biostatistics , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| | - Palanisamy Sivamurukan
- a Department of Pediatrics , Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER) , Pondicherry , India
| |
Collapse
|
15
|
Lageweg CMT, van der Putten ME, van Goudoever JB, Feuth T, Gotthardt M, van Heijst AFJ, Christmann V. Evaluation of bone mineralization in former preterm born children: Phalangeal quantitative ultrasound cannot replace dual-energy X-ray absorptiometry. Bone Rep 2018; 8:38-45. [PMID: 29955621 PMCID: PMC6019963 DOI: 10.1016/j.bonr.2018.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 01/09/2018] [Accepted: 01/17/2018] [Indexed: 01/09/2023] Open
Abstract
Background Preterm infants are at risk of impaired bone health in later life. Dual-energy X-ray absorptiometry-scan (DXA) is the gold standard to determine bone mineralization. Phalangeal quantitative ultrasound (pQUS) is an alternative technique that is inexpensive, easy to use and radiation-free. The aim of this study was to investigate whether both techniques reveal equivalent results. Materials and methods Sixty former preterm infants (31 boys; 29 girls) received a DXA and pQUS at age 9 to 10 years. DXA measured bone mineral content (BMC) and bone mineral density (BMD) for total body and lumbar spine (L1-4), while pQUS measured the amplitude dependent speed of sound (AD-SoS) and bone transit time (BTT) at metacarpals II-IV providing continuous values and Z-scores based on age and sex. Four statistical methods evaluated the association between both techniques: Pearson's correlation coefficients, partial correlation coefficients adjusted for gestational age, height and BMI, Bland-Altman analysis and cross tabulation. Results Both techniques showed a statistically significant weak correlation for continuous values as well as Z-scores (0.291–0.462, p < 0.05). Boys had significant and relatively high correlations (0.468–0.585, p < 0.05). In comparison, the correlations for girls were not significant. Correlation coefficients further decreased while calculating the partial correlations. The Bland-Altman plots showed poor agreement. Sensitivity ranged from 33% to 92% and specificity from 16% to 68%. Positive and negative predictive values ranged from 4% to 38% and 82% to 97%, respectively. Conclusions We found statistically significant weak correlations and poor agreement between DXA and pQUS measurements. DXA is not equivalent to pQUS and therefore not replaceable by this technique in former preterm born children at the age of 9 to 10 years. DXA is the golden standard to determine bone mineralization, while Quantitative ultrasound is a radiation-free alternative. Four statistical tests were used to investigate the equivalence of both methods. Comparison of results of 60 preterm born children at age 9 to 10 years found poor agreement between both methods. There was a discrepancy in differentiating the same children with normal or reduced bone mineralization. Quantitative ultrasound cannot replace the DXA scan for determination of bone mineralization in preterm born children.
Collapse
Affiliation(s)
- Carmen M T Lageweg
- Department of Pediatrics, Subdivision of Neonatology, Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mayke E van der Putten
- Department of Pediatrics, Subdivision of Neonatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Johannes B van Goudoever
- Department of Pediatrics, VU University Medical Center Amsterdam, Amsterdam, The Netherlands.,Departement of Pediatrics, Emma Children's Hospital - AMC Amsterdam, Amsterdam, The Netherlands
| | - Ton Feuth
- Department for Health Evidence, Radboud Institute for Health Science, Subdivision of Biostatistics, Radboud university medical center, Nijmegen, The Netherlands
| | - Martin Gotthardt
- Department of Radiology and Nuclear Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Arno F J van Heijst
- Department of Pediatrics, Subdivision of Neonatology, Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Viola Christmann
- Department of Pediatrics, Subdivision of Neonatology, Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
16
|
Abstract
As the cirrhosis progresses, development of complication like ascites, hepatic encephalopathy, variceal bleeding, kidney dysfunction, and hepatocellular carcinoma signify increasing risk of short term mortality. Malnutrition and muscle wasting (sarcopenia) is yet other complications that negatively impact survival, quality of life, and response to stressors, such as infection and surgery in patients with cirrhosis. Conventionally, these are not routinely looked for, because nutritional assessment can be a difficult especially if there is associated fluid retention and/or obesity. Patients with cirrhosis may have a combination of loss of skeletal muscle and gain of adipose tissue, culminating in the condition of "sarcopenic obesity." Sarcopenia in cirrhotic patients has been associated with increased mortality, sepsis complications, hyperammonemia, overt hepatic encephalopathy, and increased length of stay after liver transplantation. Assessment of muscles with cross-sectional imaging studies has become an attractive index of nutritional status evaluation in cirrhosis, as sarcopenia, the major component of malnutrition, is primarily responsible for the adverse clinical consequences seen in patients with liver disease. Cirrhosis is a state of accelerated starvation, with increased gluconeogenesis that requires amino acid diversion from other metabolic functions. Protein homeostasis is disturbed in cirrhosis due to several factors such as hyperammonemia, hormonal, and cytokine abnormalities, physical inactivity and direct effects of ethanol and its metabolites. New approaches to manage sarcopenia are being evolved. Branched chain amino acid supplementation, Myostatin inhibitors, and mitochondrial protective agents are currently in various stages of evaluation in preclinical studies to prevent and reverse sarcopenia, in cirrhosis.
Collapse
Key Words
- (PG) SGA, patient-generated SGA
- AMPK, 5′ adenosine monophosphate-activated protein kinase
- ASPEN, American Society of Parenteral and Enteral Nutrition
- ATP, adenosine triphosphate
- Akt/PKB, serine/threonine-specific protein kinase B
- BIA, bio-electric impedance analysis
- BMC, bone mineral content
- BMI, body mass index
- CT, computed tomography
- DDLT, deceased donor liver transplantation
- DRM, disease-related malnutrition
- DXA, dual X-ray absorptiometry
- ESPEN, European Society of Parenteral and Enteral Nutrition
- FFI, Fried Frailty Index
- FFM, fat free mass
- FFMI, fat free mass index
- FM, fat mass
- HE, hepatic encephalopathy
- LDLT, living donor liver transplant
- LST, lean soft tissue
- MAC, mid arm circumference
- MAMC, mid arm muscle circumference
- MELD, model for end-stage liver disease
- MNA, Mini Nutritional Assessment
- MRI, magnetic resonance imaging
- NASH, non-alcoholic steatohepatitis
- PCM, protein-calorie nalnutrition
- REE, resting energy expenditure
- RQ, respiratory quotient (or RQ or respiratory coefficient)
- SGA, Subjective Global Assessment
- SMI, Skeletal Muscle Index
- SPPB, Short Physical Performance Battery
- TIPS, trans jugular intrahepatic portocaval shunts
- TNF, tumour necrosis factor
- TSF, triceps skin fild thickness
- WHO, World Health Organisation
- YPA, total psoas area
- aKG, alfa keto glutarate
- cirrhosis
- mTORC1, mammalian target of rapamycin complex 1
- nutrition
Collapse
Affiliation(s)
- Anil C. Anand
- Address for correspondence: Anil C. Anand, Senior Consultant (Gastroenterology & Hepatology), Indraprastha Apollo Hospital, New Delhi 110076, India.Anil C. Anand, Senior Consultant (Gastroenterology & Hepatology), Indraprastha Apollo HospitalNew Delhi110076India
| |
Collapse
|
17
|
Rogers TS, Garrod MG, Peerson JM, Hillegonds DJ, Buchholz BA, Demmer E, Richardson C, Gertz ER, Van Loan MD. Is bone equally responsive to calcium and vitamin D intake from food vs. supplements? Use of (41)calcium tracer kinetic model. Bone Rep 2016; 5:117-23. [PMID: 27376110 PMCID: PMC4926806 DOI: 10.1016/j.bonr.2016.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 05/06/2016] [Indexed: 11/26/2022] Open
Abstract
Background Few interventions directly compare equivalent calcium and vitamin D from dairy vs. supplements on the same bone outcomes. The radioisotope calcium-41 (41Ca) holds promise as a tracer method to directly measure changes in bone resorption with differing dietary interventions. Objective Using 41Ca tracer methodology, determine if 4 servings/day of dairy foods results in greater 41Ca retention than an equivalent amount of calcium and vitamin D from supplements. Secondary objective was to evaluate the time course for the change in 41Ca retention. Methods In this crossover trial, postmenopausal women (n = 12) were dosed orally with 100 nCi of 41Ca and after a 180 day equilibration period received dairy (4 servings/day of milk or yogurt; ~ 1300 mg calcium, 400 IU cholecalciferol (vitamin D3/day)) or supplement treatments (1200 mg calcium carbonate/day and 400 IU vitamin D3/day) in random order. Treatments lasted 6 weeks separated by a 6 week washout (WO). Calcium was extracted from weekly 24 h urine collections; accelerator mass spectrometry (AMS) was used to determine the 41/40Ca ratio. Primary outcome was change in 41/40Ca excretion. Secondary outcome was the time course for change in 41Ca excretion during intervention and WO periods. Results The 41/40Ca ratio decreased significantly over time during both treatments; there was no difference between treatments. Both treatments demonstrated a significant retention of 41Ca within 1–2 weeks (p = 0.0007 and p < 0.001 for dairy and supplements, respectively). WO demonstrated a significant decrease (p = 0.0024) in 41Ca retention within 1–2 weeks, back to pre-intervention levels. Conclusion These data demonstrate that urinary 41Ca retention is increased with an increase in calcium and vitamin D intake regardless of the source of calcium, and the increased retention occurs within 1–2 weeks. Investigated, using 41Ca tracer, whether bone response to calcium and vitamin D differed based on the source of nutrients, foods vs. supplements. There was no difference in the bone response by treatment group. Both dairy foods and supplements resulted in reduce 41Ca excretion in urine. Reduction in 41Ca excretion occurred with 2 weeks of initiating the interventions. Removal of interventions resulted in 41Ca excretion returning to pre-intervention levels
Collapse
Key Words
- 41Ca
- 41Ca, calcium-41
- AI, adequate intake
- AMS, accelerator mass spectrometry
- ANOVA, analysis of variance
- BAP, bone specific alkaline phosphatase
- BMC, bone mineral content
- BMD, bone mineral density
- BMI, body mass index
- CTx, serum C terminal telopeptide of type 1 collagen
- CV, coefficient of variation
- Calcium supplement
- DXA, dual energy X-ray absorptiometry
- Dairy
- ELISA, enzyme linked immune-sorbent assay
- HCl, hydrochloric acid
- Kinetic model
- NDSR, Nutrition Data System for Research
- NH4OH, ammonium hydroxide
- PTH, parathyroid hormone
- Postmenopausal
- RCT, randomized controlled trial
- RDA, recommended dietary allowances
- WHNRC, Western Human Nutrition Research Center
- nCi, nanocurrie
- qCT, quantitative computed tomography
Collapse
Affiliation(s)
- Tara S Rogers
- Department of Nutrition, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, United States
| | - Marjorie G Garrod
- USDA, Agricultural Research Service, Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, United States
| | - Janet M Peerson
- Department of Nutrition, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, United States
| | - Darren J Hillegonds
- Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, United States
| | - Bruce A Buchholz
- Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, United States
| | - Elieke Demmer
- Department of Nutrition, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, United States
| | - Christine Richardson
- Department of Nutrition, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, United States
| | - Erik R Gertz
- USDA, Agricultural Research Service, Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, United States
| | - Marta D Van Loan
- Department of Nutrition, University of California, Davis, 1 Shields Avenue, Davis, CA 95616, United States; USDA, Agricultural Research Service, Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, United States
| |
Collapse
|
18
|
Ouattara A, Cooke D, Gopalakrishnan R, Huang TH, Ables GP. Methionine restriction alters bone morphology and affects osteoblast differentiation. Bone Rep 2016; 5:33-42. [PMID: 28326345 PMCID: PMC4926829 DOI: 10.1016/j.bonr.2016.02.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/20/2016] [Accepted: 02/08/2016] [Indexed: 12/22/2022] Open
Abstract
Methionine restriction (MR) extends the lifespan of a wide variety of species, including rodents, drosophila, nematodes, and yeasts. MR has also been demonstrated to affect the overall growth of mice and rats. The objective of this study was to evaluate the effect of MR on bone structure in young and aged male and female C57BL/6J mice. This study indicated that MR affected the growth rates of males and young females, but not aged females. MR reduced volumetric bone mass density (vBMD) and bone mineral content (BMC), while bone microarchitecture parameters were decreased in males and young females, but not in aged females compared to control-fed (CF) mice. However, when adjusted for bodyweight, the effect of MR in reducing vBMD, BMC and microarchitecture measurements was either attenuated or reversed suggesting that the smaller bones in MR mice is appropriate for its body size. In addition, CF and MR mice had similar intrinsic strength properties as measured by nanoindentation. Plasma biomarkers suggested that the low bone mass in MR mice could be due to increased collagen degradation, which may be influenced by leptin, IGF-1, adiponectin and FGF21 hormone levels. Mouse preosteoblast cell line cultured under low sulfur amino acid growth media attenuated gene expression levels of Col1al, Runx2, Bglap, Alpl and Spp1 suggesting delayed collagen formation and bone differentiation. Collectively, our studies revealed that MR altered bone morphology which could be mediated by delays in osteoblast differentiation. MR affected the growth rates of males and young females, but not aged females. CF and MR mice had similar intrinsic strength properties. Low methionine media attenuated bone differentiation genes in MC3T3-E1 preosteoblast cells. The lower bone mass in MR mice is appropriate for its smaller body size.
Collapse
Key Words
- Aged mice
- BMC, bone mineral content
- BS, bone surface
- BV, bone volume
- CF, control-fed
- CTX-1, C-terminal telopeptide of type 1 collagen
- Conn.Dn., connectivity density
- FGF21, fibroblast growth factor-21
- HFD, high-fat diet
- HHCy, hyperhomocysteinemia
- IDI, indentation depth increase
- IGF-1, insulin-like growth factor-1
- Imax, maximal MOI
- Imin, minimal MOI
- LPD, low protein diet
- MC3T3-E1 subclone 4
- MOI, moment of inertia
- MR, methionine restriction
- Methionine restriction
- Micro-computed tomography
- Nanoindentation
- OC, osteocalcin
- OPG, osteoprotegerin
- P1NP, N-terminal propeptide of type 1 procollagen
- RANKL, receptor activator for nuclear factor κB ligand
- SMI, structure model index
- TV, total volume
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- pMOI, polar MOI
- vBMD, volumetric bone mass density
- μCT, micro-computed tomography
Collapse
Affiliation(s)
- Amadou Ouattara
- Orentreich Foundation for the Advancement of Science, Inc, 855 Route 301, Cold Spring, NY 10516, USA
| | - Diana Cooke
- Orentreich Foundation for the Advancement of Science, Inc, 855 Route 301, Cold Spring, NY 10516, USA
| | - Raj Gopalakrishnan
- School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Tsang-hai Huang
- Institute of Physical Education, Health and Leisure Studies, National Cheng Kung University, Tainan City, Taiwan
| | - Gene P. Ables
- Orentreich Foundation for the Advancement of Science, Inc, 855 Route 301, Cold Spring, NY 10516, USA
- Corresponding author at: Orentreich Foundation for the Advancement of Science, Inc., 855 Route 301, Cold Spring, NY 10516, USA.Orentreich Foundation for the Advancement of Science, Inc.855 Route 301Cold SpringNY10516USA
| |
Collapse
|
19
|
Petersen RA, Damsgaard CT, Dalskov SM, Sørensen LB, Hjorth MF, Andersen R, Tetens I, Krarup H, Ritz C, Astrup A, Michaelsen KF, Mølgaard C. Effects of school meals with weekly fish servings on vitamin D status in Danish children: secondary outcomes from the OPUS (Optimal well-being, development and health for Danish children through a healthy New Nordic Diet) School Meal Study. J Nutr Sci 2015; 4:e26. [PMID: 26495118 DOI: 10.1017/jns.2015.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 09/30/2014] [Accepted: 06/02/2015] [Indexed: 01/14/2023] Open
Abstract
Children's vitamin D intake and status can be optimised to meet recommendations. We investigated if nutritionally balanced school meals with weekly fish servings affected serum 25-hydroxyvitamin D (25(OH)D) and markers related to bone in 8- to 11-year-old Danish children. We conducted an explorative secondary outcome analysis on data from 784 children from the OPUS School Meal Study, a cluster-randomised cross-over trial where children received school meals for 3 months and habitual lunch for 3 months. At baseline, and at the end of each dietary period, 25(OH)D, parathyroid hormone (PTH), osteocalcin (OC), insulin-like growth factor-1 (IGF-1), bone mineral content (BMC), bone area (BA), bone mineral density (BMD), dietary intake and physical activity were assessed. School meals increased vitamin D intake by 0·9 (95 % CI 0·7, 1·1) μg/d. No consistent effects were found on 25(OH)D, BMC, BA, BMD, IGF-1 or OC. However, season-modified effects were observed with 25(OH)D, i.e. children completing the school meal period in January/February had higher 25(OH)D status (5·5 (95 % CI 1·8, 9·2) nmol/l; P = 0·004) than children completing the control period in these months. A similar tendency was indicated in November/December (4·1 (95 % CI –0·12, 8·3) nmol/l; P = 0·057). However, the effect was opposite in March/April (–4·0 (95 % CI –7·0, –0·9) nmol/l; P = 0·010), and no difference was found in May/June (P = 0·214). Unexpectedly, the school meals slightly increased PTH (0·18 (95 % CI 0·07, 0·29) pmol/l) compared with habitual lunch. Small increases in dietary vitamin D might hold potential to mitigate the winter nadir in Danish children's 25(OH)D status while higher increases appear necessary to affect status throughout the year. More trials on effects of vitamin D intake from natural foods are needed.
Collapse
Key Words
- 25(OH)D, 25-hydroxyvitamin D
- BA, bone area
- BMC, bone mineral content
- BMD, bone mineral density
- Children
- DXA, dual-energy X-ray absorptiometry
- IGF-1, insulin-like growth factor-1
- Nutrition
- OC, osteocalcin
- OPUS, Optimal well-being, development and health for Danish children through a healthy New Nordic Diet
- PTH, parathyroid hormone
- School meals
- Vitamin D
Collapse
|
20
|
Braun SI, Kim Y, Jetton AE, Kang M, Morgan DW. Prediction of bone mineral density and content from measures of physical activity and sedentary behavior in younger and older females. Prev Med Rep 2015; 2:300-5. [PMID: 26844085 PMCID: PMC4721477 DOI: 10.1016/j.pmedr.2015.04.012] [Citation(s) in RCA: 12] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Little is known regarding the extent to which physical activity (PA) and sedentary behavior (SB) influence bone mineral content (BMC) and bone mineral density (BMD) in females across the lifespan. METHODS Data from 2232 females aged 12 years and older collected as part of the 2007-2008 National Health and Nutrition Examination Survey were analyzed. Categories of PA and SB were used to predict femoral and spinal BMD and BMC in four age groups (G1: 12-17; G2: 18-39; G3: 40-64; G4: ≥ 65 years). Self-reported PA categories included sufficient moderate-to-vigorous recreational PA (S-MVRPA) and insufficient MVRPA (I-MVRPA). RESULTS G1 females who accumulated S-MVRPA displayed greater femoral and spinal BMC and BMD compared to G1 females who displayed I-MVRPA. For G4 females, higher levels of SB were associated with lower femoral BMC and BMD. CONCLUSIONS These findings highlight the importance of engaging in sufficient moderate-to-vigorous physical activity during adolescence and reducing sedentary behavior in older adults to improve bone health in females.
Collapse
Affiliation(s)
- Saori I Braun
- Department of Health and Human Performance, Middle Tennessee State University, 1301 E. Main St., Murfreesboro, TN 37132, USA
| | - Youngdeok Kim
- Department of Health and Human Performance, Middle Tennessee State University, 1301 E. Main St., Murfreesboro, TN 37132, USA
| | - Amy E Jetton
- Department of Biology, Middle Tennessee State University, 1301 E. Main St., Murfreesboro, TN 37132, USA
| | - Minsoo Kang
- Department of Health and Human Performance, Middle Tennessee State University, 1301 E. Main St., Murfreesboro, TN 37132, USA
| | - Don W Morgan
- Department of Health and Human Performance, Middle Tennessee State University, 1301 E. Main St., Murfreesboro, TN 37132, USA
| |
Collapse
|
21
|
Capers PL, Hyacinth HI, Cue S, Chappa P, Vikulina T, Roser-Page S, Weitzmann MN, Archer DR, Newman GW, Quarshie A, Stiles JK, Hibbert JM. Body composition and grip strength are improved in transgenic sickle mice fed a high-protein diet. J Nutr Sci 2015; 4:e6. [PMID: 26090102 DOI: 10.1017/jns.2014.63] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 08/11/2014] [Accepted: 11/04/2014] [Indexed: 12/30/2022] Open
Abstract
Key pathophysiology of sickle cell anaemia includes compensatory erythropoiesis, vascular injury and chronic inflammation, which divert amino acids from tissue deposition for growth/weight gain and muscle formation. We hypothesised that sickle mice maintained on an isoenergetic diet with a high percentage of energy derived from protein (35 %), as opposed to a standard diet with 20 % of energy derived from protein, would improve body composition, bone mass and grip strength. Male Berkeley transgenic sickle mice (S; n 8-12) were fed either 20 % (S20) or 35 % (S35) diets for 3 months. Grip strength (BIOSEB meter) and body composition (dual-energy X-ray absorptiometry scan) were measured. After 3 months, control mice had the highest bone mineral density (BMD) and bone mineral content (BMC) (P < 0·005). S35 mice had the largest increase in grip strength. A two-way ANOVA of change in grip strength (P = 0·043) attributed this difference to genotype (P = 0·025) and a trend in type of diet (P = 0·067). l-Arginine (l-Arg) supplementation of the 20 % diet was explored, as a possible mechanism for improvement obtained with the 35 % diet. Townes transgenic sickle mice (TS; n 6-9) received 0·8, 1·6, 3·2 or 6·4 % l-Arg based on the same protocol and outcome measures used for the S mice. TS mice fed 1·6 % l-Arg for 3 months (TS1.6) had the highest weight gain, BMD, BMC and lean body mass compared with other groups. TS3.2 mice showed significantly more improvement in grip strength than TS0·8 and TS1.6 mice (P < 0·05). In conclusion, the high-protein diet improved body composition and grip strength. Outcomes observed with TS1.6 and TS3.2 mice, respectively, confirm the hypothesis and reveal l-Arg as part of the mechanism.
Collapse
Key Words
- BMC, bone mineral content
- BMD, bone mineral density
- Body composition
- C, C57BL/6 (control) mice
- C20, control mice fed diet supplying 20 % energy from protein
- C35, control mice fed diet supplying 35 % energy from protein
- DXA, dual-energy X-ray absorptiometry
- Grip strength
- High-protein diet
- LBM, lean body mass
- S, Berkeley transgenic sickle mice
- S20, Berkeley sickle mice fed diet supplying 20 % energy from protein
- S35, Berkeley sickle mice fed diet supplying 35 % energy from protein
- SCA, sickle cell anaemia
- Sickle cell disease
- TS, Townes sickle mice
- TS0.8, Townes sickle mice fed 0·8 % l-Arg diet
- TS1.6, Townes sickle mice fed 1·6 % l-Arg diet
- TS3.2, Townes sickle mice fed 3·2 % l-Arg diet
- TS6.4, Townes sickle mice fed 6·4 % l-Arg diet
- l-Arg, l-arginine
Collapse
|
22
|
Gooding MA, Atkinson JL, Duncan IJ, Niel L, Shoveller AK. Dietary fat and carbohydrate have different effects on body weight, energy expenditure, glucose homeostasis and behaviour in adult cats fed to energy requirement. J Nutr Sci 2015; 4:e2. [PMID: 26090098 DOI: 10.1017/jns.2014.60] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 10/16/2014] [Accepted: 10/20/2014] [Indexed: 01/17/2023] Open
Abstract
The effects of dietary carbohydrate and fat on feline health are not well understood. The
effects of feeding diets moderately high in fat (HF; n 10; 30 % fat, 26 %
carbohydrate as fed) or carbohydrate (HC; n 10; 11 % fat, 47 %
carbohydrate), for 84 d, were investigated in healthy, adult cats (3·5 (sd 0·5)
years). Data on indirect calorimetry, blood biomarkers, activity, play and cognition were
collected at baseline, and at intervals throughout the study. Body composition was
measured by dual-energy X-ray absorptiometry at baseline and on day 85. There were no
significant main effects of diet on body weight and composition. When data were analysed
over study day within diet, cats fed HF diets experienced a significant increase in body
fat (P = 0·001) and body weight (P = 0·043) in contrast
to cats consuming the HC diet that experienced no change in body fat or body weight
(P = 0·762) throughout the study. Overall, energy expenditure was
similar between diets (P = 0·356 (fasted), P = 0·086
(postprandial)) and respiratory quotient declined with exposure to the HF diet and
increased with exposure to the HC diet (P < 0·001; fasted and
postprandial). There was no difference in insulin sensitivity as an overall effect of diet
(P = 0·266). Activity declined from baseline with exposure to both
diets (HC: P = 0·002; HF: P = 0·01) but was not
different between diets (P = 0·247). There was no effect of diet on play
(P = 0·387) and cats consuming either the HF or HC diet did not
successfully learn the cognitive test. Overall, cats adapt to dietary macronutrient
content, and the implications of feeding HC and HF diets on risk for adiposity as driven
by metabolic and behavioural mechanisms are discussed.
Collapse
Key Words
- Activity
- BMC, bone mineral content
- BW, body weight
- Cognition
- DXA, dual-energy X-ray absorptiometry
- EE, energy expenditure
- Energy expenditure
- G:I, glucose:insulin
- HC, high carbohydrate
- HF, high fat
- Indirect calorimetry
- Insulin
- LBM, lean body mass
- ME, metabolisable energy
- Macronutrients
- Play
- RQ, respiratory quotient
Collapse
|