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Pit-Ten Cate IM, Samouda H, Schierloh U, Jacobs J, Vervier JF, Stranges S, Lair ML, Beaufort CD. Can health indicators and psychosocial characteristics predict attrition in youths with overweight and obesity seeking ambulatory treatment? Data from a retrospective longitudinal study in a paediatric clinic in Luxembourg. BMJ Open 2017; 7:e014811. [PMID: 28871008 PMCID: PMC5588941 DOI: 10.1136/bmjopen-2016-014811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES The current study aimed to identify factors that could predict attrition in youths starting ambulatory treatment to control or lose weight. DESIGN Retrospective longitudinal study. SETTING Paediatric clinic: ambulatory treatment programme. PATIENTS AND MEASURES A youth sample (n=191; 89 boys; aged 7-17 years) completed measures of demographic characteristics, and health and psychosocial traits before starting an ambulatory weight management programme. Anthropometric and biological markers related to obesity were also obtained. Tests of mean differences and regression analyses were used to investigate the relationship between these variables and attrition after 1 year. RESULTS The χ2and t test results showed both psychosocial and health indicators differentiated between participants who continued attending the treatment programme and those who dropped out. More specifically, youths that dropped out of treatment were significantly older, had higher body mass index z scores, higher levels of insulin, triglycerides and HOMA-IR, reported poorer health, had more conduct problems and were more dissatisfied with themselves and their bodies before starting treatment. Results of regression analyses revealed that weight status (anthropometric and biological markers), age and body dissatisfaction predicted attrition (overall prediction success 73%; prediction success for continued attendance 90/91%; prediction success for dropouts 42/44%). CONCLUSION Attrition, but especially the continued attendance in treatment, can be successfully predicted by age, weight status and body dissatisfaction. For patients who present with one or more risk factors, careful consideration is needed to decide which (combination of) inpatient or outpatient programme may facilitate prolonged engagement of the patient and hence may be most effective in establishing weight loss.
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Affiliation(s)
- Ineke M Pit-Ten Cate
- Faculty of Language and Literature, Humanities, Arts and Education, University of Luxembourg;, Esch-sur-Alzette, Luxembourg
| | - Hanen Samouda
- Department of Population Health, Luxembourg Institute of Health (LIH), Strassen, Luxembourg
| | - Ulrike Schierloh
- Clinique Pédiatrique, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
| | - Julien Jacobs
- Department of Population Health, Luxembourg Institute of Health (LIH), Strassen, Luxembourg
| | - Jean Francois Vervier
- Clinique Pédiatrique, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
| | - Saverio Stranges
- Department of Population Health, Luxembourg Institute of Health (LIH), Strassen, Luxembourg
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Marie Lise Lair
- Department of Population Health, Luxembourg Institute of Health (LIH), Strassen, Luxembourg
| | - Carine de Beaufort
- Clinique Pédiatrique, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
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Araujo DS, Marquezin MCS, Barbosa TDS, Gavião MBD, Castelo PM. Evaluation of masticatory parameters in overweight and obese children. Eur J Orthod 2015; 38:393-7. [DOI: 10.1093/ejo/cjv092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Gordon JW, Dolinsky VW, Mughal W, Gordon GRJ, McGavock J. Targeting skeletal muscle mitochondria to prevent type 2 diabetes in youth. Biochem Cell Biol 2015; 93:452-65. [PMID: 26151290 DOI: 10.1139/bcb-2015-0012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The prevalence of type 2 diabetes (T2D) has increased dramatically over the past two decades, not only among adults but also among adolescents. T2D is a systemic disorder affecting every organ system and is especially damaging to the cardiovascular system, predisposing individuals to severe cardiac and vascular complications. The precise mechanisms that cause T2D are an area of active research. Most current theories suggest that the process begins with peripheral insulin resistance that precedes failure of the pancreatic β-cells to secrete sufficient insulin to maintain normoglycemia. A growing body of literature has highlighted multiple aspects of mitochondrial function, including oxidative phosphorylation, lipid homeostasis, and mitochondrial quality control in the regulation of peripheral insulin sensitivity. Whether the cellular mechanisms of insulin resistance in adults are comparable to that in adolescents remains unclear. This review will summarize both clinical and basic studies that shed light on how alterations in skeletal muscle mitochondrial function contribute to whole body insulin resistance and will discuss the evidence supporting high-intensity exercise training as a therapy to circumvent skeletal muscle mitochondrial dysfunction to restore insulin sensitivity in both adults and adolescents.
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Affiliation(s)
- Joseph W Gordon
- a Department of Human Anatomy and Cell Science, College of Nursing, Faculty of Health Sciences, University of Manitoba, The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, John Buhler Research Centre, 715 McDermot Avenue, Winnipeg, MB R3E 3P4, Canada
| | - Vernon W Dolinsky
- b Department of Pharmacology and Therapeutics, The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, John Buhler Research Centre, 715 McDermot Avenue, Winnipeg, MB R3E 3P4, Canada
| | - Wajihah Mughal
- c Department of Human Anatomy and Cell Science, The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, John Buhler Research Centre, 715 McDermot Avenue, Winnipeg, MB R3E 3P4, Canada
| | - Grant R J Gordon
- d Hotchkiss Brain Institute, Health Research Innovation Centre, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.,e Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Jonathan McGavock
- f Department of Pediatrics and Child Health, The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, John Buhler Research Centre, 715 McDermot Avenue, Winnipeg, MB R3E 3P4, Canada
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Santiprabhob J, Leewanun C, Limprayoon K, Kiattisakthavee P, Wongarn R, Aanpreung P, Likitmaskul S. Outcomes of group-based treatment program with parental involvement for the management of childhood and adolescent obesity. PATIENT EDUCATION AND COUNSELING 2014; 97:67-74. [PMID: 25053472 DOI: 10.1016/j.pec.2014.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Revised: 06/14/2014] [Accepted: 07/01/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE An uncontrolled study was conducted to evaluate the effects of a group-based program on weight control, metabolic profiles, and obesity-related complications in obese youth. METHODS The program consisted of an initial in-patient session and five group sessions, one, two, three, six, and nine months into the study, providing participants and their parents with information about the consequences of obesity and lifestyle modifications. The severity of obesity and obesity-related complications were evaluated at baseline and 12 months after the intervention. The participants' and their parents' perceptions of the program were assessed. RESULTS Of the obese youth recruited (n=126), 115 completed the study. Their percentage weight for height and percentage body fat decreased significantly (both p<0.001), and their insulin resistance, lipid profiles, and transaminases levels improved (all p<0.01). The prevalence of prediabetes, dyslipidemia, and elevated transaminases decreased significantly (all p<0.05). The participants and their parents perceived the program as valuable. CONCLUSION A group-based program is effective in managing childhood obesity, improving metabolic profiles, and alleviating certain obesity-related complications. PRACTICE IMPLICATIONS A group-based program that provides education and raises the awareness of obese children and their parents about the consequences of obesity is an effective model for treating childhood obesity.
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Affiliation(s)
- Jeerunda Santiprabhob
- Division of Endocrinology and Metabolism, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
| | - Chanin Leewanun
- Department of Rehabilitation Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kawewan Limprayoon
- Division of Respiratory and Critical Care, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pornpimol Kiattisakthavee
- Division of Endocrinology and Metabolism, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Renu Wongarn
- Division of Nutrition, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Prapun Aanpreung
- Division of Gastroenterology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Supawadee Likitmaskul
- Division of Endocrinology and Metabolism, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Ongan D, Inanc N, Cicek B. Comparing school lunch and canteen foods consumption of children in kayseri, Turkey. Pak J Med Sci 2014; 30:549-53. [PMID: 24948977 PMCID: PMC4048504 DOI: 10.12669/pjms.303.4651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 03/05/2014] [Accepted: 03/08/2014] [Indexed: 11/21/2022] Open
Abstract
Objective: School Nutrition Programs (SNPs) may have positive effects on children’s food choices through high nutritional quality meals. This cross-sectional & descriptive study was conducted to determine nutritional quality of school lunch and to compare lunch consumption of students who participated in SNP and who did not, at the first governmental school serving school lunch in Kayseri, Turkey. Methods: One hundred and sixteen students aged 9-14 years were divided into two groups after being matched according to gender, age, grade; 58 participants (school lunch group; SL-G) and 58 nonparticipants (school canteen group; SC-G) were recruited. Energy-nutrient content of 5-day school lunch was determined by recipes. Socio-demographic data and lunch consumption on 5 consecutive weekdays with weighed left overs were obtained. Lunch energy-nutrient intakes and anthropometric measurements were compared. Results: School lunch was adequate for vitamins (E & C), fibre, iron, inadequate for energy, carbohydrate, folate, calcium. Contribution of fat (36.6±6.8%) and saturated fat (12.2±3.5%) to energy and sodium content was high (1001 mg) in school lunch. SL-G consumed significantly higher protein, vitamin C, thiamine, vitamin B6, potassium, magnesium, iron, zinc (p<0.001 for each) than SC-G. Energy (p<0.001), carbohydrate (p<0.001), fat (p<0.05), vitamin E (p<0.001) intakes of SC-G were significantly higher than SL-G. Body weights, height, body mass index of groups were similar. Conclusions: Foodservice at school should be revised with collaboration of school management, catering firm, dietetic professionals. Policy should focus on reducing fat, saturated fat, sodium content and meeting energy-nutrient requirements of school aged children.
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Affiliation(s)
- Dilek Ongan
- Dilek Ongan, Assistant Professor, Department of Nutrition and Dietetics, Izmir Katip Celebi University, Izmir, Turkey
| | - Neriman Inanc
- Neriman Inanc, Professor, Department of Nutrition and Dietetics Nuh Naci Yazgan University, Kayseri, Turkey
| | - Betül Cicek
- Betül Cicek, Associate Professor, Department of Nutrition and Dietetics
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Regber S, Mårild S, Johansson Hanse J. Barriers to and facilitators of nurse-parent interaction intended to promote healthy weight gain and prevent childhood obesity at Swedish child health centers. BMC Nurs 2013; 12:27. [PMID: 24308289 PMCID: PMC4175109 DOI: 10.1186/1472-6955-12-27] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 11/29/2013] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Overweight and obesity in preschool children have increased worldwide in the past two to three decades. Child Health Centers provide a key setting for monitoring growth in preschool children and preventing childhood obesity. METHODS We conducted semi-structured interviews with 15 nurses working at Child Health Centers in southwest Sweden in 2011 and 2012. All interviews were tape recorded and transcribed verbatim and imported to QSR N'Vivo 9 software. Data were analyzed deductively according to predefined themes using content analysis. RESULTS Findings resulted in 332 codes, 16 subthemes and six main themes. The subthemes identified and described barriers and facilitators for the prevention of childhood obesity at Child Health Centers. Main themes included assessment of child's weight status, the initiative, a sensitive topic, parental responses, actions and lifestyle patterns. Although a body mass index (BMI) chart facilitated greater recognition of a child's deviant weight status than the traditional weight-for-height chart, nurses used it inconsistently. Obesity was a sensitive topic. For the most part, nurses initiated discussions of a child's overweight or obesity. CONCLUSION CHCs in Sweden provide a favorable opportunity to prevent childhood obesity because of a systematic organization, which by default conducts growth measurements at all health visits. The BMI chart yields greater recognition of overweight and obesity in children and facilitates prevention of obesity. In addition, visualization and explanation of the BMI chart helps nurses as they communicate with parents about a child's weight status. On the other hand, inconsistent use and lack of quality assurance regarding the recommended BMI chart was a barrier to prevention, possibly delaying identification of overweight or obesity. Other barriers included emotional difficulties in raising the issue of obesity because it was perceived as a sensitive topic. Some parents deliberately wanted overweight children, which was another specific barrier. Concerned parents who took the initiative or responded positively to the information about obesity facilitated prevention activities.
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Affiliation(s)
- Susann Regber
- Nordic School of Public Health NHV, Box 12 133, Gothenburg SE- 402 42, Sweden
- Department of Public Health and Community Medicine, Public Health Epidemiology Unit, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Staffan Mårild
- Department of Paediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Johansson Hanse
- Nordic School of Public Health NHV, Box 12 133, Gothenburg SE- 402 42, Sweden
- Department of Psychology, University of Gothenburg, Gothenburg, Sweden
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Granado M, Fernández N, Monge L, Figueras JC, Carreño-Tarragona G, Amor S, García-Villalón AL. Effects of coronary ischemia-reperfusion in a rat model of early overnutrition. Role of angiotensin receptors. PLoS One 2013; 8:e54984. [PMID: 23383303 PMCID: PMC3562319 DOI: 10.1371/journal.pone.0054984] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 12/18/2012] [Indexed: 11/19/2022] Open
Abstract
Background Obesity during childhood has dramatically increased worldwide in the last decades. Environmental factors acting early in life, including nutrition, play an important role in the pathogenesis of obesity and cardiovascular diseases in adulthood. Aims To analyze the effects of early overfeeding on the heart and coronary circulation, the effect of ischemia-reperfusion (I/R) and the role of the renin-angiotensin system (RAS) were studied in isolated hearts from control and overfed rats during lactation. Methods and Results On the day of birth litters were adjusted to twelve pups per mother (control) or to three pups per mother (overfed). At weaning (21 days) the rats were killed and the heart perfused in a Langendorff system and subjected to 30 min of ischemia followed by 15 min of reperfusion. The contractility (left developed intraventricular pressure) was lower in the hearts from overfed rats, and was reduced by I/R in hearts from control but not from overfed rats. I/R also reduced the coronary vasoconstriction to angiotensin II more in hearts from control than from overfed rats, and the vasodilatation to bradykinin similarly in both experimental groups. The expression of both angiotensin AGTRa and AGTR2 receptors was increased in the myocardium of overfed rats, and I/R increased the expression of both receptors in control rats but reduced it in overfed rats. The expression of apoptotic and antiapoptotic markers was increased in hearts of overfed rats compared with control, and further increased by I/R. Conclusions These results suggest that both overfeeding and I/R impair cardiac and coronary function due, at least in part, to activation of the angiotensin pathway. However, overfeeding may reduce the impairment of ventricular contractility by I/R.
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Affiliation(s)
- Miriam Granado
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
- CIBER Fisiopatología de Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Nuria Fernández
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Luis Monge
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Juan Carlos Figueras
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Sara Amor
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
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Peterson MS, Lawman HG, Wilson DK, Fairchild A, Van Horn ML. The association of self-efficacy and parent social support on physical activity in male and female adolescents. Health Psychol 2012; 32:666-74. [PMID: 22888813 DOI: 10.1037/a0029129] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Previous research has shown that cognitive factors may account for the relationship between interpersonal factors and health behaviors. Given these findings, the current study sought to further explore the direct and indirect relationship between parental social support and adolescent physical activity (PA). METHOD Data were collected from 1,421 sixth graders (73% Black, 54% females, 71% on free or reduced lunch) in South Carolina. Measures for emotional social support, instrumental social support, and adolescent self-efficacy (SE) were assessed and PA was assessed via accelerometry. RESULTS Parent instrumental social support was directly related to girls' PA and parent emotional social support was inversely related to girls' PA. Parent instrumental social support was indirectly related to boys' PA through boys' SE. The covaried association of SE with PA was significant for boys and marginal for girls. CONCLUSIONS SE for overcoming barriers may be an important construct for understanding the relationship between parent instrumental social support and boys' PA in underserved populations. The mechanisms for engaging in PA may be different for adolescent girls and boys.
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Affiliation(s)
- Michelle S Peterson
- Department of Clinical-Community Psychology, University of South Carolina, USA.
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Resnicow K, Mcmaster F, Woolford S, Slora E, Bocian A, Harris D, Drehmer J, Wasserman R, Schwartz R, Myers E, Foster J, Snetselaar L, Hollinger D, Smith K. Study design and baseline description of the BMI2 trial: reducing paediatric obesity in primary care practices. Pediatr Obes 2012; 7:3-15. [PMID: 22434735 PMCID: PMC5427511 DOI: 10.1111/j.2047-6310.2011.00001.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/01/2011] [Accepted: 08/29/2011] [Indexed: 02/06/2023]
Abstract
OBJECTIVES This study will test the efficacy of motivational interviewing (MI) conducted by primary care providers and dieticians among children ages 2-8 years old with a body mass index (BMI) ≥ 85th and ≤ 97th percentile. METHODS Forty-two practices from the American Academy of Pediatrics, Pediatric Research in Office Settings Network were assigned to one of three groups. Group 1 (usual care) measures BMI percentile at baseline, and at 1- and 2-year follow-ups and receives standard health education materials. Group 2 providers deliver three proactive MI counselling sessions with a parent of the index child in Year 1 and one additional 'booster' visit in Year 2. Group 3 adds six MI counselling sessions from a trained dietician. The primary outcome is the child's BMI percentile at 2-year follow-up. Secondary outcomes include parent report of the child's screen time, physical activity, intake of fruits and vegetables, and sugar-sweetened beverages. RESULTS We enrolled 633 eligible children whose mean BMI percentile was 92.0 and mean age of 5.1. The cohort was 57% female. Almost 70% of parents reported a household income of ≥ $40,000 per year, and 39% had at least a college education. The cohort was 63% white, 23% Hispanic, 7% black and 7% Asian. Parent self-reported confidence that their child will achieve a healthy weight was on average an 8 (out of 10). CONCLUSION To date, several aspects of the study can inform similar efforts including our ability to use volunteer clinicians to recruit participants and their willingness to dedicate their time, without pay, to receive training in MI.
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Affiliation(s)
- K. Resnicow
- Department of Health Behavior & Health Education, University of Michigan, Ann Arbor, MI, USA
| | - F. Mcmaster
- Department of Health Behavior & Health Education, University of Michigan, Ann Arbor, MI, USA
| | - S. Woolford
- Child Health Evaluation and Research Unit (CHEAR), University of Michigan, Ann Arbor, MI, USA
| | - E. Slora
- Pediatric Research in Office Settings (PROS), American Academy of Pediatrics, Elk Grove Village, IL, USA
| | - A. Bocian
- Pediatric Research in Office Settings (PROS), American Academy of Pediatrics, Elk Grove Village, IL, USA
| | - D. Harris
- Pediatric Research in Office Settings (PROS), American Academy of Pediatrics, Elk Grove Village, IL, USA
| | - J. Drehmer
- Pediatric Research in Office Settings (PROS), American Academy of Pediatrics, Elk Grove Village, IL, USA
| | - R. Wasserman
- Pediatric Research in Office Settings (PROS), American Academy of Pediatrics, Elk Grove Village, IL, USA
,Department of Pediatrics, University of Vermont, Burlington, VA, USA
| | - R. Schwartz
- Department of Pediatrics, Wake Forest University, Winston-Salem, NC, USA
| | - E. Myers
- American Dietetic Association, Chicago, IL, USA
| | - J. Foster
- American Dietetic Association, Chicago, IL, USA
| | - L. Snetselaar
- College of Public Health, University of Iowa, Iowa City, IA, USA
| | - D. Hollinger
- College of Public Health, University of Iowa, Iowa City, IA, USA
| | - K. Smith
- College of Public Health, University of Iowa, Iowa City, IA, USA
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Tascilar ME, Turkkahraman D, Oz O, Yucel M, Taskesen M, Eker I, Abaci A, Dundaroz R, Ulas UH. P300 auditory event-related potentials in children with obesity: is childhood obesity related to impairment in cognitive functions? Pediatr Diabetes 2011; 12:589-95. [PMID: 21418454 DOI: 10.1111/j.1399-5448.2010.00748.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To investigate alterations in P300 auditory event-related potentials in children with obesity to detect changes in cognitive functions. METHOD A total of 50 children with obesity and 23 age- and sex-matched healthy control subjects were included in the study. Laboratory tests were performed to detect dislipidemia and insulin resistance (IR). The latencies and amplitudes of P300 waves were measured in healthy and obese subjects with or without IR. The oddball paradigm was used in recordings of P300 auditory event-related potentials. RESULTS A significant difference was observed between groups regarding latency and amplitude of P300 component obtained from central (Cz) electrode. The grand means of P300 latency were longer, and amplitude decreased significantly in obese group compared to that of healthy controls. When the obese group was divided into two different subgroups, those with IR and without IR, the grand means of P300 latency were longer and the amplitude decreased significantly in subjects with IR compared to those without IR. CONCLUSION Both decreased amplitude and prolonged latency of P300 are associated with IR in children with obesity, which shows the impairment of neural activity associated with sensory and cognitive information processing in these children. Further studies are necessary to strengthen the current findings and to determine the exact mechanism of cognitive impairment in obese children.
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Affiliation(s)
- Mehmet Emre Tascilar
- Department of Pediatric Endocrinology, Gulhane Military Medical Faculty, Ankara, Turkey
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Doyle-Baker PK, Venner AA, Lyon ME, Fung T. Impact of a combined diet and progressive exercise intervention for overweight and obese children: the B.E. H.I.P. study. Appl Physiol Nutr Metab 2011; 36:515-25. [DOI: 10.1139/h11-042] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The Biochemical Evaluation of a Health Intervention Programme (B.E. H.I.P.) investigated the impact of progressive exercise intensity in overweight and obese children. A 5-month prospective randomized crossover design (XA, immediate intervention; OB, control group; XB, delayed intervention, OA, postintervention follow-up) with a 10-week health intervention programme was employed. The intervention utilized a progressive increase in high-intensity exercise (≥75% maximum heart rate) and included 3 nutrition and 2 parent education sessions. Primary analysis was completed with (i) XA versus OB and (ii) all intervention participants (collapsed XA and XB = XAXB). Prepubertal overweight and obese male and female children (n = 27) between 5 and 10 years of age were randomly allocated to XA (n = 16; 11 females; waist circumference = 80.0 ± 10.6 cm) or OB (n = 11; 3 females; waist circumference = 76.6 ± 7.5 cm). The primary variables were heart rate and percent fat mass. All variables, including body composition, habitual activity, and serum lipids, were repeatedly measured for up to a maximum of 7 time points. Energy expenditure was quantitatively measured throughout each exercise class (n = 20). A significantly longer time in the exercise sessions was spent in high-intensity (35.1%–60.0%) versus low- to moderate-intensity (64.9%–40.0%) exercise as the intervention progressed from the first to the last attended exercise class (Fisher exact test, p < 0.0001). The percent fat mass decreased in all intervention participants (–2.2%, p < 0.0001). XA had a greater slope decrease than OB for percent fat mass (p = 0.00051) and triglycerides (p = 0.0467). In conclusion, high-intensity exercise, within a comprehensive health programme that includes nutrition education, improved the lipid and physiological health profiles of obese children.
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Affiliation(s)
- Patricia K. Doyle-Baker
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Allison A. Venner
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada
- Department of Medical Science, University of Calgary, AB T2N 1N4, Canada
| | - Martha E. Lyon
- Department of Pathology and Laboratory Medicine, University of Calgary, AB T2N 1N4, Canada
- Department of Pharmacology and Therapeutics, University of Calgary, AB T2N 1N4, Canada
- Department of Pediatrics, University of Calgary, AB T2N 1N4, Canada
- Calgary Laboratory Services, University of Calgary, AB T2N 1N4, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, AB T2N 1N4, Canada
| | - Tak Fung
- Department of Mathematics and Statistics, University of Calgary, AB T2N 1N4, Canada
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Yaeger-Yarom G, Nemet D, Eliakim A. Causes and patterns of referral to a tertiary, multidisciplinary program for the treatment of childhood obesity. J Pediatr Endocrinol Metab 2011; 24:303-6. [PMID: 21823527 DOI: 10.1515/jpem.2011.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Despite the childhood obesity epidemic, few obese children receive therapy and relatively few weight management multidisciplinary programs exist. OBJECTIVE AND METHODS The objective of this study was to examine the patterns and causes for obese children referrals to a tertiary multidisciplinary childhood obesity treatment program. A total of 227 children (10.6 +/- 2.6 years; 108 boys, 119 girls) were evaluated at the beginning of the programs for personal and familial demographic and anthropometric details, the referring agent to the program, and the main reasons for participation and for the child's desire to lose weight. RESULTS The majority of participants had an obese family member (83%), in particular an obese parent (62%). The majority of patients were self-referred (86.8%), mainly by their mothers (74%). Only a small fraction were referred by healthcare providers (15.4%). The desire to improve appearance (44.5%), social/psychological issues (39.2%) and the will to improve fitness (29.5%) were the main reasons for joining the program. CONCLUSION Understanding the motives for participation and referral patterns can improve recruitment and participation of obese children in weight reduction intervention programs.
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Affiliation(s)
- Gili Yaeger-Yarom
- Department of Pediatric, Child Health and Sports Center, Meir Medical Center, Kfar-Saba, Sackler School of Medicine, Tel-Aviv University, Israel
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Schroeder M, Gelber V, Moran TH, Weller A. Long-term obesity levels in female OLETF rats following time-specific post-weaning food restriction. Horm Behav 2010; 58:844-53. [PMID: 20736013 PMCID: PMC2982947 DOI: 10.1016/j.yhbeh.2010.08.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 08/15/2010] [Accepted: 08/18/2010] [Indexed: 01/03/2023]
Abstract
Obesity and the metabolic syndrome represent serious health threats affecting increasing numbers of individuals, with females being more affected than males and with growing incidence among children and adolescents. In the present study, we used the OLETF rat model of early-onset obesity to examine the influence of different timing of food restriction on long-term obesity levels in females. Food restriction took place at different time windows: from weaning until postnatal day (PND) 45 (early); from weaning until PND90 (chronic); or from PND45 until PND70 (late). Follow-up continued until PND90. During and after the termination of the diet-restriction period, we focused on peripheral adiposity-related measures such as fat pad weight (brown, retroperitoneal and inguinal); inguinal adipocyte size and number; and leptin, oxytocin and glucose levels. We also examined body weight, feeding efficiency, spontaneous intake after release from diet-restriction, and plasma creatinine levels and estrous cycle characteristics as a result of the chronic diet. The results suggest that while food restriction produced significant weight and adiposity loss, OLETF females presented poor weight loss retention after the early and late short-term diets. The estrous cycle structure and time of first estrous of the OLETF rats were normalized by chronic food restriction. Females responded to early food restriction in a different manner than males did in previous studies, further emphasizing the importance of sex-appropriate approaches in the investigation and treatment of the pathologies related to obesity and the metabolic syndrome.
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Chae HW, Kwon YN, Rhie YJ, Kim HS, Kim YS, Paik IY, Suh SH, Kim DH. Effects of a structured exercise program on insulin resistance, inflammatory markers and physical fitness in obese Korean children. J Pediatr Endocrinol Metab 2010; 23:1065-72. [PMID: 21158218 DOI: 10.1515/jpem.2010.168] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thirty-eight obese Korean children (21 boys, 17 girls), whose ages were between 9 and 15, were divided into either the intervention group (19 obese children: BMI>95P) or the age- and sex-matched obese control group. The intervention group performed an intensive exercise program under the supervision of educated instructors for 12 weeks (90 minutes/day, two days/week) and received lifestyle modification counseling using food diaries and phone calls. The control group participated in conventional counseling at an out-patient clinic. The intervention group appeared to have more improvement of body weight, body composition, serum lipid profiles and high-sensitivity C-reactive protein (hs-CRP) levels (P < 0.05) but without changes in serum adiponectin level. HOMA-IR decreased from 2.3 to 1.3 in the intervention group. Maximal oxygen consumption (VO2 max) and other physical fitness parameters were significantly improved after the intervention program (P < 0.05).
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Affiliation(s)
- Hyun-Wook Chae
- Department of Pediatrics, Yonsei University, Seoul, Korea
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15
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Schroeder M, Shbiro L, Gelber V, Weller A. Post-weaning voluntary exercise exerts long-term moderation of adiposity in males but not in females in an animal model of early-onset obesity. Horm Behav 2010; 57:496-505. [PMID: 20193686 DOI: 10.1016/j.yhbeh.2010.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 02/09/2010] [Accepted: 02/17/2010] [Indexed: 12/15/2022]
Abstract
Given the alarming increase in childhood, adolescent and adult obesity there is an imperative need for understanding the early factors affecting obesity and for treatments that may help prevent or at least moderate it. Exercise is frequently considered as an effective treatment for obesity however the empirical literature includes many conflicting findings. In the present study, we used the OLETF rat model of early-onset hyperphagia-induced obesity to examine the influence of early exercise on peripheral adiposity-related parameters in both males and females. Rats were provided voluntary access to running wheels from postnatal day (PND) 22 until PND45. We examined fat pad weight (brown, retroperitoneal, inguinal and epididymal); inguinal adipocyte size and number; and leptin, adiponectin, corticosterone and creatinine levels. We also examined body weight, feeding efficiency and spontaneous intake. Early voluntary exercise reduced intake, adiposity and leptin in the OLETF males following a sharp reduction in adipocyte size despite a significant increase in fat cell number. Exercising males from the lean LETO control strain presented stable intake, but reduced body fat, feeding efficiency and increased plasma creatinine, suggesting an increment in muscle mass. OLETF females showed reduced feeding efficiency and liver fat, and a significant increase in brown fat. Exercising LETO control females increased intake, body weight and creatinine, but no changes in body fat. Overall, OLETF rats presented higher adiponectin levels than controls in both basal and post-exercise conditions. The results suggest an effective early time frame, when OLETF males can be successfully "re-programmed" through voluntary exercise; in OLETF females the effect is much more moderate. Findings expose sex-dependent peripheral mechanisms in coping with energy challenges.
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Schroeder M, Moran TH, Weller A. Attenuation of obesity by early-life food restriction in genetically hyperphagic male OLETF rats: peripheral mechanisms. Horm Behav 2010; 57:455-62. [PMID: 20156441 PMCID: PMC2852576 DOI: 10.1016/j.yhbeh.2010.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Revised: 01/31/2010] [Accepted: 02/07/2010] [Indexed: 11/19/2022]
Abstract
The alarming increase in childhood, adolescent and adult obesity has exposed the need for understanding early factors affecting obesity and for treatments that may help prevent or moderate its development. In the present study, we used the OLETF rat model of early-onset hyperphagia induced obesity, which become obese as a result of the absence of CCK(1) receptors, to examine the influence of partial food restriction on peripheral adiposity-related parameters during and after chronic and early short-term food restriction. Pair feeding (to the amount of food eaten by control, LETO rats) took place from weaning until postnatal day (PND) 45 (early) or from weaning until PND90 (chronic). We examined fat pad weight (brown, retroperitoneal, inguinal and epididymal); inguinal adipocyte size and number; and plasma leptin, oxytocin and creatinine levels. We also examined body weight, feeding efficiency and spontaneous intake after release from food-restriction. The results showed that chronic food restriction produced significant reductions in adiposity parameters, hormones and body weight, while early food restriction successfully reduced long-term body weight, intake and adiposity, without affecting plasma measurements. Early (and chronic) dieting produced promising long-term effects that may imply the reorganization of both peripheral and central mechanisms that determine energy balance and further support the theory suggesting that early interventions may effectively moderate obesity, even in the presence of a genetic tendency.
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Affiliation(s)
- Mariana Schroeder
- Life Sciences Faculty, Bar Ilan University, Ramat Gan 52900, Israel
- Gonda (Goldschmied) Brain Research Center, Bar Ilan University, Ramat Gan 52900, Israel
| | - Timothy H. Moran
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Aron Weller
- Gonda (Goldschmied) Brain Research Center, Bar Ilan University, Ramat Gan 52900, Israel
- Psychology Department, Bar Ilan University, Ramat Gan 52900, Israel
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17
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Guendelman S, Fernald LCH, Neufeld LM, Fuentes-Afflick E. Maternal perceptions of early childhood ideal body weight differ among Mexican-origin mothers residing in Mexico compared to California. ACTA ACUST UNITED AC 2010; 110:222-9. [PMID: 20102849 DOI: 10.1016/j.jada.2009.10.033] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Accepted: 08/13/2009] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To assess maternal perceptions of children's current and ideal body sizes, and the meaning of and factors contributing to overweight in infancy and early childhood among Mexican-origin mothers living in Mexico and in California. DESIGN A quali-quantitative study combining focus groups and a self-administered questionnaire. SUBJECTS/SETTING A purposive sample of 84 low-income, Mexican-origin mothers of 4- to 6-year-old children recruited between March 2006 and January 2008 from rural and urban communities in Mexico and California. STATISTICAL ANALYSES Bivariate, multivariate, and qualitative analyses of maternal perceptions of children's actual and ideal body size supplemented by qualitative analyses of meaning of and factors contributing to childhood overweight/obesity. RESULTS Ideal child body size was considerably lower among Mexican-origin mothers living in California (3.86+/-0.56) than it was among mothers living in Mexico (4.32+/-0.83), and this difference was significant (P=0.001) after adjusting for sociodemographic covariates. Among mothers of overweight children, 82% of mothers in California were dissatisfied with their child's weight compared with 29% of mothers in Mexico (P=0.003). Focus-group results suggest that these differences in the perception of children's ideal body size can be attributable to differences in body size norms among mothers and awareness of the negative effects of obesity that occur after migration to California. CONCLUSIONS Maternal perceptions of early childhood overweight appear to differ among Mexican-origin women living in Mexico and California. Recognition of the negative health consequences of obesity and identification of barriers to achieving weight control are important first steps toward childhood obesity prevention. Interventions directed at Mexican-origin mothers should focus on culturally acceptable ways of transmitting weight-control information.
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Affiliation(s)
- Sylvia Guendelman
- Community Health and Human Development, University of California, Berkeley, Berkeley, CA 94720-7360, USA.
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18
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Olstad DL, McCargar L. Prevention of overweight and obesity in children under the age of 6 years. Appl Physiol Nutr Metab 2009; 34:551-70. [PMID: 19767789 DOI: 10.1139/h09-016] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Although obesity was rarely observed among children 30 years ago, it is now evident among Canadian children of all ages. Currently, 15.2% of 2- to 5-year-old children are overweight, whereas 6.3% are obese. Limited data suggest that poor dietary and physical activity patterns are increasing obesity risk among these young children. Body weight and lifestyle behaviours are known to track from childhood to adulthood, thereby increasing the risk for obesity and other chronic diseases later in life. Intrauterine life, infancy, and the preschool years may all include critical periods that program the long-term regulation of energy balance, and therefore obesity-prevention strategies should be initiated in utero and continue throughout childhood and adolescence. Although single-strategy obesity-prevention initiatives have had limited success, programs that target multiple behaviours may help reduce body weight and body fat among young children. Parental involvement is key to the success of obesity-prevention programs at a young age, as parents have primary control over their children's food and activity environments. Accordingly, parental obesity is the best predictor of childhood obesity. Parents should be encouraged to teach and role model healthy lifestyle behaviours for their young children. Health professionals can also be involved in obesity prevention, as they are ideally placed to identify young children at risk for obesity. By calculating and plotting the body mass index for all children, and initiating obesity-prevention strategies in utero, health professionals can help curb the rise in overweight and obesity among young children.
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Affiliation(s)
- Dana Lee Olstad
- Alberta Institute for Human Nutrition, University of Alberta, Edmonton, AB T6G 2P5, Canada
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Sharkey D, Fainberg HP, Wilson V, Harvey E, Gardner DS, Symonds ME, Budge H. Impact of early onset obesity and hypertension on the unfolded protein response in renal tissues of juvenile sheep. Hypertension 2009; 53:925-31. [PMID: 19414648 DOI: 10.1161/hypertensionaha.108.122812] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Childhood obesity has reached epidemic proportions. Obesity is an independent risk factor for the development of end-stage renal disease. Endoplasmic reticulum stress and subsequent activation of the unfolded protein response (UPR) are implicated in the development of adipose tissue dysregulation and type 2 diabetes mellitus in obesity. The present study explored the impact of adolescent-onset obesity on the UPR after obesity-related hypertension and nephropathy, using an ovine model in which obesity was induced by increased food intake and reduced activity. Obese young adults had a higher mean arterial pressure (lean, 89.6+/-1.7 mm Hg versus obese, 101+/-3.0 mm Hg; P<0.01) and greater sensitivity to low physiological doses of angiotensin II. Obesity increased the glomerular area and was associated with activation of the UPR in renal cells with a greater abundance of glucose-regulated protein 78, C/EBP homologous protein, Bax, phosphorylated c-Jun amino-terminal kinase, and activating transcription factor 6 (all P<0.05). In addition, there was a marked upregulation of proinflammatory genes, most notably those involved in macrophage signaling. Reactive oxygen species production and handling were also perturbed in obese adults. Renal endoplasmic reticulum stress was positively correlated with macrophage content (r=0.83; P<0.001), phosphorylated c-Jun amino-terminal kinase (r=0.73; P<0.01), and adiposity (r=0.71; P<0.01). In conclusion, adolescent-onset, obesity-related renal endoplasmic reticulum stress was associated with activation of the UPR, apoptosis, and inflammation, potentially increasing the associated renal damage observed in young adults. The UPR may prove to be a useful therapeutic target for the treatment and prevention of obesity-related nephropathy and associated hypertension, thereby reducing the burden of end-stage renal disease.
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Affiliation(s)
- Don Sharkey
- Centre for Reproduction and Early Life, Institute of Clinical Research, University of Nottingham, Nottingham, United Kingdom
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Schroeder M, Shbiro L, Zagoory-Sharon O, Moran TH, Weller A. Toward an animal model of childhood-onset obesity: follow-up of OLETF rats during pregnancy and lactation. Am J Physiol Regul Integr Comp Physiol 2008; 296:R224-32. [PMID: 19036826 DOI: 10.1152/ajpregu.90697.2008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Otsuka Long-Evans Tokushima Fatty (OLETF) rat model of obesity (a spontaneous CCK1 receptor knockout) has been extensively studied as model of hyperphagia-induced obesity. In previous studies, young OLETF rats presented abnormal eating patterns [compared with Long-Evans Tokushima Otsuka (LETO) controls] in a variety of independent ingestion and nursing tests during the suckling period. The aim of the present study was to characterize the early emergence of abnormal adiposity in the pups. Moreover, because both the dams and the pups present the genetic mutation, a close follow-up of the dams' body weight and intake during pregnancy and lactation was performed to examine the circumstances that contribute to build up the pups' early adiposity. Compared with controls, OLETF pups presented higher fat levels, larger adipocytes, and increased waist circumference as early as postnatal day 7 and this profile persisted to the age of weaning. While LETO dams gained weight throughout pregnancy and lactation, OLETF dams were obese and hyperphagic during pregnancy but lost weight during lactation, probably as a result of rearing hyperphagic pups. Current and previous results suggest a possible influence of the dams' obesity during gestation and a high investment in nursing time during lactation on the pups' obesity levels during childhood. This, combined with the innate hyperphagia repeatedly observed in the pups at these early ages, makes the OLETF strain a useful tool in the research of childhood-onset obesity.
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