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Chirindza N, Leach L, Mangona L, Nhaca G, Daca T, Prista A. Body composition, physical fitness and physical activity in Mozambican children and adolescents living with HIV. PLoS One 2022; 17:e0275963. [PMID: 36264880 PMCID: PMC9584386 DOI: 10.1371/journal.pone.0275963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION As a result of the effectiveness of antiretroviral drugs (ART), HIV/AIDS has become a chronic disease, which has enabled children living with HIV to reach adolescence and adulthood. However, the long exposure to both the disease and ART has caused undesirable effects that compromise the physiological functioning and the quality of life of the subjects. OBJECTIVE To determine the body composition, physical fitness and habitual physical activity of children and adolescents living with HIV on ART. METHODS A total of 79 subjects of both genders aged 8-14 years, living with HIV in ART, selected by convenience participated in the study. The subjects underwent anthropometric assessment, physical fitness assessment and physical activity assessment. RESULTS Relative to reference norms, the values of the anthropometric indicators fell below 50th percentile (height/age = 92.4%; BMI/age 72.2%; sum of skinfolds = 51.9%; arm circumference = 63.3%). The prevalence of "low height/age" and "low weight/age" was 34.9% and 9.3%, respectively for boys, and 27.9% and 11.1%, respectively for girls. With the exception of trunk flexibility (12.3%), most subjects were considered unfit in the physical fitness tests (abdominal resistance = 76.4%; handgrip strength = 75.4%; lower limb power = 66.4%). The percentage of subjects with insufficient physical activity was 45.5% for boys and 77.8% for girls. The values for all variables were consistently and significantly lower when compared with studies done in Mozambicans boys and girls without HIV+ from both urban and rural areas. CONCLUSION The subjects participants in the study living with HIV and undergoing ART had impaired growth, low physical fitness and low levels of habitual physical activity in relation to the reference values of their peers without HIV, which compromised their physiological functioning and their quality of life.
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Affiliation(s)
- Nivaldo Chirindza
- Physical Activity and Health Research Group, FEFD, Universidade Pedagógica de Maputo, Maputo, Mozambique
- * E-mail: (AP); (NC)
| | - Lloyd Leach
- Department of Sport, Recreation and Exercise Science, University of the Western Cape, Cape Town, South Africa
| | - Lucília Mangona
- School of Sport Sciences, Universidade Eduardo Mondlane, Maputo, Mozambique
| | - Gomes Nhaca
- Physical Activity and Health Research Group, FEFD, Universidade Pedagógica de Maputo, Maputo, Mozambique
| | - Timóteo Daca
- Physical Activity and Health Research Group, FEFD, Universidade Pedagógica de Maputo, Maputo, Mozambique
| | - António Prista
- Physical Activity and Health Research Group, FEFD, Universidade Pedagógica de Maputo, Maputo, Mozambique
- * E-mail: (AP); (NC)
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Ndiokwelu CO, Uwaezuoke SN, Iloh KK. Physical growth and sexual maturation of perinatally HIV-infected adolescent males in a southeast Nigerian tertiary hospital: a comparative cross-sectional study. BMC Pediatr 2022; 22:573. [PMID: 36199047 PMCID: PMC9533491 DOI: 10.1186/s12887-022-03626-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/05/2022] [Accepted: 09/08/2022] [Indexed: 11/26/2022] Open
Abstract
Background The advent of highly-active anti-retroviral therapy (HAART) has resulted in the survival of children with Human Immunodeficiency Virus (HIV)/Acquired Immune Deficiency Syndrome (AIDS) into adolescence. Their prolonged survival has translated into co-morbidities like endocrine deficiencies which may manifest as growth and pubertal delay. This study aimed to determine the physical growth and sexual maturation of perinatally HIV-infected adolescent males and compare them with those of age-matched HIV-negative controls. Methods We conducted a comparative cross-sectional study of 104 perinatally HIV-infected males on HAART aged 10 to 19 years, and 104 age-matched HIV-negative males who served as controls. The subjects and controls were enrolled and assessed at a Nigerian tertiary hospital over six months. Anthropometric measurements such as weight, height, and BMI were obtained and Z scores for age were derived for weight, height, and BMI to determine physical growth using WHO AnthroPlus software. Sexual maturation was assessed using the method proposed by Marshall and Tanner. Data analysis and appropriate statistics were conducted with the Statistical Package for Social Sciences (SPSS) version 25 Chicago IL. A p-value < 0.05 was adopted as the level of statistical significance. Results The mean height, weight, and BMI Z scores of the subjects were all lower than those of the controls. The difference between the mean weight of the subjects (44.60 ± 13.32 kg) and the controls (49.97 ± 13.58 kg) was statistically significant (t = 2.88, p = 0.004). Similarly, the difference between the mean BMI Z-scores of the subjects (-0.96 ± 1.95) and the controls (-0.10 ± 0.86) was statistically significant (t = 4.10, p = < 0.001). The subjects showed a delay in pubic hair and testicular development for Stages 1, 2, and 3. Duration of HAART did not significantly affect the BMI of subjects who were in three groups: undernutrition, normal nutrition, and overnutrition (Kruskal-Wallis test, p = 0.30). Conclusion Perinatal HIV infection negatively affects physical growth and the onset of pubic-hair development (PH 2) despite the duration of HAART. We recommend that screening for weight deficit or pubertal delay should form part of the management protocol for HIV-infected male children on HAART.
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Affiliation(s)
- Chibuzo O Ndiokwelu
- Department of Pediatrics, University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla Enugu, Enugu, Nigeria
| | - Samuel N Uwaezuoke
- Department of Pediatrics, University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla Enugu, Enugu, Nigeria. .,College of Medicine, University of Nigeria Enugu Campus, Enugu, Nigeria.
| | - Kenechukwu K Iloh
- Department of Pediatrics, University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla Enugu, Enugu, Nigeria.,College of Medicine, University of Nigeria Enugu Campus, Enugu, Nigeria
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Agatha D, Titilola GB, Abideen S, Oluwatosin O, Agatha W, Sabdat E, Tomilola MM, Priscilla E, Ebiere H, Oliver E. Growth and Pubertal Development Among HIV Infected and Uninfected Adolescent Girls in Lagos, Nigeria: A Comparative Cross-Sectional Study. Glob Pediatr Health 2022; 9:2333794X221082784. [PMID: 35321024 PMCID: PMC8935559 DOI: 10.1177/2333794x221082784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/03/2022] [Indexed: 11/15/2022] Open
Abstract
This study aimed to compare growth and pubertal developmental parameters among HIV-infected and uninfected adolescent girls (11-19 years) in Lagos using a cross-sectional approach. Height, weight, BMI Z-scores, sexual maturity rating by Tanner stages and age at menarche, were compared in the 2 groups. The mean age was similar in both groups (13.2 [±2.3] years and 13.6 [±1.6] years for HIV positive and negative respectively [ P = .13]). Majority (66.2%) were in Junior Secondary classes and the mean socioeconomic class was 2.5 (±0.9). HIV-infected girls had significantly lower height, weight, and BMI Z scores compared to their uninfected counterparts. The proportion that had attained Tanner stages 3 to 5 were significantly lower among the HIV-positive participants. The study identified lower growth parameters and pubertal delay among HIV-infected adolescent females compared to HIV uninfected girls. Growth and sexual maturation assessment should form part of routine care of adolescents living with HIV.
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Affiliation(s)
- David Agatha
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | | | - Salako Abideen
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Odubela Oluwatosin
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
- Odubela Oluwatosin, Clinical Sciences Department, Nigerian Institute of Medical Research, 6 Edmund Crescent, Yaba, Lagos 10001, Nigeria.
| | - Wapmuk Agatha
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Ekama Sabdat
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | | | | | | | - Ezechi Oliver
- Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
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Does HIV infection affect growth and puberty of Cameroonian children? Arch Pediatr 2021; 28:238-241. [PMID: 33685750 DOI: 10.1016/j.arcped.2021.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 11/17/2020] [Accepted: 02/10/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVES This study aimed to describe growth and pubertal development of adolescents with HIV infection under highly active antiretroviral therapy (HAART) in Cameroon. DESIGN Through an observational study, we included 74 adolescents aged 9-17 years who were taking HAART and had attended two care units in Cameroon for at least 6 months. Weight and height were measured and transferred to 2007 WHO curves for 5- to 19-year-olds. Stunting was defined by a height for age z-score less than -2 standard deviations. Wasting was defined by a BMI z-score for age less than -2 standard deviations. Pubertal development was assessed using Tanner stages. We looked into the association between HIV infection characteristics, HAART regimen, and growth/puberty abnormalities with multivariate analysis. The Mann-Whitney U-test was used to compare median values with a p-value ≤0.05. RESULTS The median age was 13 (11.2-14.7) years. Stunting affected 44% of the children. Wasting affected 9.7% of the adolescents. The age at onset of puberty was in the normal range in both boys and girls. Adolescents aged 12-14 years (OR 3.4 [95% CI, 1.3-8.8], p=0.012) with a past history of opportunistic infection and taking HAART with protease inhibitors were more likely to have stunting. CONCLUSION In the Cameroonian setting, growth was mainly affected by stunting, but pubertal development was normal in all patients. This may reflect the benefits of HAART in children with HIV infection.
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Height and timing of growth spurt during puberty in young people living with vertically acquired HIV in Europe and Thailand. AIDS 2019; 33:1897-1910. [PMID: 31274534 PMCID: PMC6738540 DOI: 10.1097/qad.0000000000002294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The aim of this study was to describe growth during puberty in young people with vertically acquired HIV.
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Abstract
: The World Health Organization estimates that over four million children have been infected with HIV, most via perinatal transmission. The availability of safe and effective antiretroviral therapy (ART) has radically reduced mortality in this population and most that have access to ART are now thriving. However, long-term effects of HIV infection and its therapy have significant impact on aging adolescents and young adults with perinatal HIV infection. Many of the complications of long-term HIV infection seen in adults are also present, although the main impact of long-standing HIV infection and its treatment in children has been on growth and development, including neurodevelopment. A better understanding of the complexities of growing up with perinatal HIV will help prepare low and middle-income countries of the world where ART is now available to successfully manage their aging up populations of adolescents and young adults with perinatal HIV infection.
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Penner J, Ferrand RA, Richards C, Ward KA, Burns JE, Gregson CL. The impact of vitamin D supplementation on musculoskeletal health outcomes in children, adolescents, and young adults living with HIV: A systematic review. PLoS One 2018; 13:e0207022. [PMID: 30439968 PMCID: PMC6237309 DOI: 10.1371/journal.pone.0207022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE HIV-positive children, adolescents, and young adults are at increased risk poor musculoskeletal outcomes. Increased incidence of vitamin D deficiency in youth living with HIV may further adversely affect musculoskeletal health. We investigated the impact of vitamin D supplementation on a range of musculoskeletal outcomes among individuals aged 0-25 years living with HIV. METHODS A systematic review was conducted using databases: PubMed/Medline, CINAHL, Web of Knowledge, and EMBASE. Interventional randomised control trials, quasi-experimental trials, and previous systematic reviews/meta-analyses were included. Outcomes included: BMD, BMC, fracture incidence, muscle strength, linear growth (height-for-age Z-score [HAZ]), and biochemical/endocrine biomarkers including bone turnover markers. RESULTS Of 497 records, 20 studies met inclusion criteria. Thirteen studies were conducted in North America, one in Asia, two in Europe, and four in Sub-Saharan Africa. High-dose vitamin D supplementation regimens (1,000-7,000 IU/day) were successful in achieving serum 25-hydroxyvitamin-D (25OHD) concentrations above study-defined thresholds. No improvements were observed in BMD, BMC, or in muscle power, force and strength; however, improvements in neuromuscular motor skills were demonstrated. HAZ was unaffected by low-dose (200-400 IU/day) supplementation. A single study found positive effects on HAZ with high-dose supplementation (7,000 vs 4,000IU/day). CONCLUSIONS Measured bone outcomes were unaffected by high-dose vitamin D supplementation, even when target 25OHD measurements were achieved. This may be due to: insufficient sample size, follow-up, intermittent dosing, non-standardised definitions of vitamin D deficiency, or heterogeneity of enrolment criteria pertaining to baseline vitamin D concentration. High-dose vitamin D may improve HAZ and neuromuscular motor skills. Adequately powered trials are needed in settings where HIV burden is greatest. PROSPERO Number: CRD42016042938.
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Affiliation(s)
- Justin Penner
- University of Manitoba, Winnipeg, Canada
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Department of Paediatrics, University of British Columbia, Vancouver, Canada
| | - Rashida A. Ferrand
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Biomedical Research and Training Institute, Harare, Zimbabwe
| | | | - Kate A. Ward
- MRC Lifecourse Epidemiology, University of Southampton, Southampton, United Kingdom
| | - James E. Burns
- Clinical Research Department, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Queen Elizabeth University Hospital, Greater Glasgow & Clyde NHS Trust, Glasgow, United Kingdom
| | - Celia L. Gregson
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
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Rolland-Guillard L, de La Rochebrochard E, Sirirungsi W, Kanabkaew C, Breton D, Le Cœur S. Reproductive health, social life and plans for the future of adolescents growing-up with HIV: a case-control study in Thailand. AIDS Care 2018; 31:90-94. [PMID: 30173557 DOI: 10.1080/09540121.2018.1516281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Most perinatally HIV-infected children receiving antiretroviral treatment now survive into adolescence. This is a period when young people experience puberty, shape their sexual identity and initiate their own social life. The aim of our analysis was to compare aspects of the sexual and reproductive health, social life and plans for the future of perinatally HIV-infected adolescents (PHIVAs) with a control group from the general population. We used data from the Teens Living with Antiretrovirals (TEEWA) survey carried out from 2010 to 2012 in Thailand among PHIVAs aged 12-19 years. Adolescents completed a self-administered questionnaire focusing on their daily life. Each PHIVA (case) was matched on sex, age and place of residence with a randomly selected adolescent from the general population (control). Analysis was stratified by gender and age; McNemar's test was used to compare cases and controls. A total of 1142 adolescents (571 cases and 571 controls) were included in the analysis, 42% boys and 58% girls. Cases experienced puberty delay compared to controls (p < 0.01). Cases and controls did not differ in terms of sex education, sexual initiation, romantic relationships or friendships, and risky behaviours. However, PHIVAs were less likely to attend the education system (p < 0.01), to plan for marriage (p < 0.01) or parenthood (p < 0.01). PHIVAs do not differ substantially from controls in terms of sexual and social life. Yet, affirmative action policies could help counterbalance their educational handicap. Provision of psychosocial support could enhance their ability to make informed decisions with regards to family formation.
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Affiliation(s)
- L Rolland-Guillard
- a Strasbourg University, Demographic Institute of the University of Strasbourg , Strasbourg , France.,b Institut National d'Etudes Démographiques (INED) , Paris , France
| | - E de La Rochebrochard
- b Institut National d'Etudes Démographiques (INED) , Paris , France.,c CESP, Fac. de médecine - Univ. Paris-Sud, Fac. de médecine - UVSQ, INSERM, Université Paris-Saclay , Villejuif , France
| | - W Sirirungsi
- d Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
| | - C Kanabkaew
- e Institut de Recherche pour le Développement (IRD) , Chiang Mai , Thailand
| | - D Breton
- a Strasbourg University, Demographic Institute of the University of Strasbourg , Strasbourg , France.,b Institut National d'Etudes Démographiques (INED) , Paris , France
| | - S Le Cœur
- b Institut National d'Etudes Démographiques (INED) , Paris , France.,d Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand.,e Institut de Recherche pour le Développement (IRD) , Chiang Mai , Thailand
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Iloh ON, Iloh KK, Ubesie AC, Emodi IJ, Ikefuna AN, Ibeziako NS. Comparison of Tanner staging of HIV-infected and uninfected girls at the University of Nigeria Teaching Hospital, Ituku/Ozalla, Enugu, Nigeria. J Pediatr Endocrinol Metab 2017; 30:725-729. [PMID: 28672738 DOI: 10.1515/jpem-2016-0356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 05/12/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND A number of factors influence sexual maturation in adolescents, including chronic illnesses like HIV. Marshall and Tanner devised a method of classifying the adolescent based on the level of sexual maturation into five stages. This study compared the Tanner staging of HIV-infected and uninfected girls. METHODS This was a cross-sectional study of 100 HIV-infected girls aged 8-18 years and 100 uninfected counterparts matched for age and social class. Using standard photographs as a guide, stages of sexual maturation were determined according to the method proposed by Marshall and Tanner. Data analysis was done with SPSS version 20. p-values <0.05 were regarded as significant. RESULTS The study participants were aged 8-17 years. Fifty-five subjects compared to 39 controls were still in pre-pubertal breast developmental stages while 45 subjects (45%) compared to 61 controls (61%) have commenced breast development (p=0.024). Similarly, 52 subjects compared to 31 controls were in the pre-pubertal pubic hair developmental stages, while 48 subjects (48%) compared to 69 controls (69%) had commenced pubic hair development (p=0.003). CONCLUSIONS Perinatal HIV infection affected the onset of pubic hair and breast development but did not significantly affect the attainment of sexual maturation.
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Abstract
BACKGROUND Substantial numbers of children with HIV present to health care services in older childhood and adolescence, previously undiagnosed. These "slow-progressors" may experience considerable chronic ill health, which is not well characterized. We investigated the prevalence of chronic morbidity among children aged 6-15 years at diagnosis of HIV infection. METHODS A cross-sectional study was performed at 7 primary care clinics in Harare, Zimbabwe. Children aged 6-15 years who tested HIV positive following provider-initiated HIV testing and counseling were recruited. A detailed clinical history and standardized clinical examination was undertaken. The association between chronic disease and CD4 count was investigated using multivariate logistic regression. RESULTS Of the 385 participants recruited [52% female, median age 11 years (interquartile range 8-13)], 95% were perinatally HIV infected. The median CD4 count was 375 (interquartile range 215-599) cells per cubic millimeter. Although 78% had previous contact with health care services, HIV testing had not been performed. There was a high burden of chronic morbidity: 23% were stunted, 21% had pubertal delay, 25% had chronic skin disease, 54% had a chronic cough of more than 1 month-duration, 28% had abnormal lung function, and 12% reported hearing impairment. There was no association between CD4 count of <500 cells per cubic millimeter or <350 cells per cubic millimeter with WHO stage or these chronic conditions. CONCLUSIONS In children with slow-progressing HIV, there is a substantial burden of chronic morbidity even when CD4 count is relatively preserved. Timely HIV testing and prompt antiretroviral therapy initiation are urgently needed to prevent development of chronic complications.
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Abstract
OBJECTIVE To evaluate the association between HIV infection and sexual maturation, and mediation of this association by HIV effects on growth. DESIGN Pooled data were analyzed from two longitudinal cohort studies, the International Maternal Pediatric Adolescent AIDS Clinical Trials P219/219C Study (1993-2007) and the Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol (2007-2015), including perinatally HIV-infected (PHIV) and HIV-exposed uninfected (PHEU) youths. METHODS We evaluated age at sexual maturity among 2539 PHIV and PHEU adolescents based on annual physician-assessed pubertal staging measures. Interval-censored regression models were used to evaluate associations of HIV infection with age at maturity. Mediation analyses accounting for height and BMI Z-scores at specific ages were used to estimate direct and indirect effects of HIV infection on age at sexual maturity. RESULTS Mean ages at sexual maturity for PHIV girls (n = 1032) were 15.5 years for both female breast and pubic hair and 15.9 and 15.8 years for PHIV boys (n = 1054) for genitalia and pubic hair, respectively. PHIV youths matured approximately 6 months later on average than PHEU (n = 221 girls and 232 boys), and this difference persisted after adjustment for race/ethnicity and birth cohort. BMI and height Z-scores mediated the association between HIV infection and later maturation in girls, accounting for up to 74% of the total HIV effect. Only height Z-scores mediated the effect of HIV on male age at maturity, accounting for up to 98% of the HIV effect. CONCLUSION PHIV youths attain sexual maturity later on average than PHEU youths. Much of this difference may be attributable to deficient growth, suggesting directions for future interventions.
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Lima LRAD, Martins PC, Junior CASA, Castro JACD, Silva DAS, Petroski EL. Are traditional body fat equations and anthropometry valid to estimate body fat in children and adolescents living with HIV? Braz J Infect Dis 2017; 21:448-456. [PMID: 28531380 PMCID: PMC9428006 DOI: 10.1016/j.bjid.2017.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 03/03/2017] [Indexed: 10/31/2022] Open
Abstract
The aim of this study was to assess the validity of traditional anthropometric equations and to develop predictive equations of total body and trunk fat for children and adolescents living with HIV based on anthropometric measurements. Forty-eight children and adolescents of both sexes (24 boys) aged 7-17 years, living in Santa Catarina, Brazil, participated in the study. Dual-energy X-ray absorptiometry was used as the reference method to evaluate total body and trunk fat. Height, body weight, circumferences and triceps, subscapular, abdominal and calf skinfolds were measured. The traditional equations of Lohman and Slaughter were used to estimate body fat. Multiple regression models were fitted to predict total body fat (Model 1) and trunk fat (Model 2) using a backward selection procedure. Model 1 had an R2=0.85 and a standard error of the estimate of 1.43. Model 2 had an R2=0.80 and standard error of the estimate=0.49. The traditional equations of Lohman and Slaughter showed poor performance in estimating body fat in children and adolescents living with HIV. The prediction models using anthropometry provided reliable estimates and can be used by clinicians and healthcare professionals to monitor total body and trunk fat in children and adolescents living with HIV.
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Affiliation(s)
- Luiz Rodrigo Augustemak de Lima
- Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil.
| | - Priscila Custódio Martins
- Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil
| | | | - João Antônio Chula de Castro
- Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil
| | - Diego Augusto Santos Silva
- Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil
| | - Edio Luiz Petroski
- Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil
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Ulijaszek SJ. The International Growth Standard for Children and Adolescents Project: Environmental Influences on Preadolescent and Adolescent Growth in Weight and Height. Food Nutr Bull 2016; 27:S279-94. [PMID: 17361663 DOI: 10.1177/15648265060274s510] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This review has two aims. The first is to identify important environmental influences on the growth of children aged 1 to 9 years and of adolescents, defined as those aged 10 to 19 years. The second is to identify possible environmentally based criteria for the selection of individuals and populations for data collection in the development of an international growth reference for these age ranges. There are many common environmental influences on the growth of children between the ages of 1 and 19 years; the examination and description of these forms the main body of this review. Subsequently, environmental factors influencing adolescent growth only are considered. In both cases, possible selection criteria are put forward. The most important inclusion criteria for both preadolescence and adolescence are good nutrition, lack of infection, and socioeconomic status that does not constrain growth. Additionally, low birthweight, catch-up growth, breastfeeding, and early adiposity rebound have impacts on growth and/or body composition into puberty. Exclusion of children born at low birth and/or experiencing catch-up growth could be most realistically operationalized if populations in which secular trends in growth were either completed or minimal were selected. Although an effect of hypoxia on child and adolescent growth, independent of nutrition, is small at most, many high-altitude populations have high prevalances of low birthweight and should be excluded on this basis. Since all populations are exposed to pollutants, contaminants, and toxicants in varying degrees, they cannot be realistically excluded from the sample frame. However, it may be desirable to exclude populations that are habitually exposed to extremely high levels of environmental pollution, including air pollution, and those living in close proximity to toxic waste. It is impossible to exclude populations and individuals on the basis of their exposure to aflatoxin contamination of food. However, exclusion on the basis of low socioeconomic status or poverty may well act as a proxy for this. There are a small number of populations that show extreme patterns of growth in body size and proportion in preadolescence and adolescence, and these should be excluded from the sample frame.
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Affiliation(s)
- Stanley J Ulijaszek
- Institute of Social and Cultural Anthropology, University of Oxford, Oxford, UK.
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Lima LRAD, Krug RDR, Silva RCRD, Carvalho APD, González-Chica DA, Back IDC, Petroski EL. Prediction of Areal Bone Mineral Density and Bone Mineral Content in Children and Adolescents Living With HIV Based on Anthropometric Variables. J Clin Densitom 2016. [PMID: 26206526 DOI: 10.1016/j.jocd.2015.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Children and adolescents living with HIV have low bone mass for age. There are reliable and accurate methods for evaluation of bone mass, however, alternative methods are necessary, especially, for application in limited-resource scenarios. Anthropometry is a noninvasive and low cost method that can predict bone mass in healthy youths. The aim of the study was to develop predictive equations for bone mineral content and bone mineral density in children and adolescents living with HIV based on anthropometric variables. Forty-eight children and adolescents of both sexes (24 females) from 7 to 17 years, living in greater Florianopolis area, Santa Catarina, Brazil, who were under clinical follow-up at "Hospital Infantil Joana de Gusmão", participated in the study. Dual-energy X-ray absorptiometry was used to evaluate whole-body bone mineral content (BMC) and areal bone mineral density (aBMD). Height, body weight, bone diameters, arm circumference, and triceps skinfold were measured and the body mass index and arm muscle area were calculated. Multiple regression models were fitted to predict BMC and aBMD, using backward selection (p ≥ 0.05). Two predictive models with high R2 values (84%-94%) were developed. Model 1 to estimate aBMD [Y = -0.1450124 + (height × 0.0033807) + (age × 0.0146381) + (body mass index × 0.0158838) + (skin color × 0.0421068)], and model 2 to estimate BMC [Y = 1095.1 + (body weight × 45.66973) + (age × 31.36516) + (arm circumference × -53.27204) + (femoral diameter × -9.594018)].The predictive models using anthropometry provided reliable estimates and can be useful to monitor aBMD and BMC in children and adolescents living with human immunodeficiency virus where limited resources are available.
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Affiliation(s)
- Luiz Rodrigo Augustemak de Lima
- Graduate Program in Physical Education, Sports Centre, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| | - Rodrigo de Rosso Krug
- Graduate Program in Medical Sciences, Health Sciences Centre, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rosane Carla Rosendo da Silva
- Graduate Program in Physical Education, Sports Centre, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Aroldo Prohmann de Carvalho
- Pediatric Infectologist at Hospital Infantil Joana de Gusmão, Florianópolis, Santa Catarina, Brazil; Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil; Vale do Itajaí University, Florianópolis, Santa Catarina, Brazil
| | | | - Isabela de Carlos Back
- Graduate Program in Public Health, Federal University of Santa Catarina, Health Sciences Centre, Florianópolis, Santa Catarina, Brazil
| | - Edio Luiz Petroski
- Graduate Program in Physical Education, Sports Centre, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Abstract
The decline in age of pubertal timing has serious public health implications ranging from psychosocial adjustment problems to a possible increase in reproductive cancers. One biologically plausible explanation for the decline is a decrease in exposures to infections. To systematically review studies that assess the role of infection in pubertal timing, Medline, Web of Science and EMBASE were systematically searched and retrieved studies were reviewed for eligibility. Eligible studies examined the association between infections, including microbial exposures, and physical pubertal characteristics (breast, genitalia and pubic hair development) or age at menarche. We excluded studies that were published in a language other than English, focused on precocious puberty, were case studies, and/or included youth with autoimmune diseases. We report on study design, population characteristics, measurement of infection and puberty and the main effects of infection on pubertal development. Based on our search terms we identified 1372 unique articles, of which only 15 human and five animal studies met our eligibility criteria. Not all studies examined all outcomes. Infection was associated with later breast development (4/4 human studies), with less consistent evidence for genitalia and pubic hair development. Seven studies assessed age at menarche with inconsistent findings (three supporting later, four no association). We conclude that a small but consistent literature supports that infection is associated with later breast development; the evidence for other pubertal events and age at menarche is less clear. Where fewer childhood infections coincide with the rise in incidence of hormone-related cancers.
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Abstract
BACKGROUND International adoption of HIV-infected children is becoming increasingly common. Their health has not yet been described. METHODS HIV-infected international adoptees or refugees in foster care aged 0-20 years followed at Seattle Children's Hospital or Children's Hospital Colorado between January 1, 2004 and May 31, 2013 were included. Parameters were collected through retrospective chart review of baseline (first 6 months at study site) and annual follow-up visits. RESULTS Africa (90%) was the primary region of origin for the 79 children who met inclusion criteria. Median follow-up was 3 years (range: 0-7). At baseline, acute malnutrition was uncommon (8%); however, stunting occurred in 32%. Most stunting resolved during the study period. The most common medical issues at baseline were dermatologic (Tinea and Molluscum contagiosum) and gastrointestinal (parasites and diarrhea). Almost half (48%) had either mental health issues or behavioral problems. Educational delays (50%) were also common. Upon adoption, only 1% was severely (CD4% < 15%) immunosuppressed. Fifty-nine (75%) were on antiretroviral therapy (ART); 45 of these (76%) had suppressed viral load (VL). Of 14 children on ART with detectable VL, 11 (79%) demonstrated non-nucleoside reverse transcriptase inhibitor resistance and 1 (7%) protease inhibitor resistance. CONCLUSIONS In this cohort of HIV-infected international adoptees, severe immunosuppression was uncommon. Most medical issues were mild. Stunting was common at baseline but largely resolved. Mental health issues, behavioral problems, and educational delays were common. Most children were on ART at adoption and most of these showed suppressed VL. Non-nucleoside reverse transcriptase inhibitor mutations were present in most viremic children.
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17
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Cruz MLS, Cardoso CA. Perinatally infected adolescents living with human immunodeficiency virus (perinatally human immunodeficiency virus). World J Virol 2015; 4:277-284. [PMID: 26279988 PMCID: PMC4534818 DOI: 10.5501/wjv.v4.i3.277] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 06/12/2015] [Accepted: 07/23/2015] [Indexed: 02/05/2023] Open
Abstract
The availability of highly potent antiretroviral treatment during the last decades has transformed human immunodeficiency virus (HIV) infection into a chronic disease. Children that were diagnosed during the first months or years of life and received treatment, are living longer and better and are presently reaching adolescence and adulthood. Perinatally HIV-infected adolescents (PHIV) and young adults may present specific clinical, behavior and social characteristics and demands. We have performed a literature review about different aspects that have to be considered in the care and follow-up of PHIV. The search included papers in the MEDLINE database via PubMed, located using the keywords “perinatally HIV-infected” AND “adolescents”. Only articles published in English or Portuguese from 2003 to 2014 were selected. The types of articles included original research, systematic reviews, and quantitative or qualitative studies; case reports and case series were excluded. Results are presented in the following topics: “Puberal development and sexual maturation”, “Growth in weight and height”, “Bone metabolism during adolescence”, “Metabolic complications”, “Brain development, cognition and mental health”, “Reproductive health”, “Viral drug resistance” and “Transition to adult outpatient care”. We hope that this review will support the work of pediatricians, clinicians and infectious diseases specialists that are receiving these subjects to continue treatment.
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18
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Abstract
Objectives: To estimate age at attaining Tanner stages in Ugandan/Zimbabwean HIV-infected children initiating antiretroviral therapy (ART) in older childhood and investigate predictors of delayed puberty, particularly age at ART initiation. Design: Observational analysis within a randomized trial. Methods: Tanner staging was assessed every 24 weeks from 10 years of age, menarche every 12 weeks and height every 4–6 weeks. Age at attaining different Tanner stages was estimated using normal interval regression, considering predictors using multivariable regression. Growth was estimated using multilevel models with child-specific intercepts and trajectories. Results: Median age at ART initiation was 9.4 years (inter-quartile range 7.8, 11.3) (n = 582). At the first assessment, the majority (80.2%) were in Tanner stage 1; median follow-up with staging was 2.8 years. There was a strong delaying effect of older age at ART initiation on age at attaining all Tanner stages (P < 0.05) and menarche (P = 0.02); in boys the delaying effect generally weakened with older age. There were additional significant delays associated with greater impairments in pre-ART height-for-age Z-score (P < 0.05) in both sexes and pre-ART BMI-for-age in girls (P < 0.05). There was no evidence that pre-ART immuno-suppression independently delayed puberty or menarche. However, older children/adolescents had significant growth spurts in intermediate Tanner stages, and were still significantly increasing their height when in Tanner stage 5 (P < 0.01). Conclusion: Delaying ART initiation until older childhood substantially delays pubertal development and menarche, independently of immuno-suppression. This highlights that factors other than CD4+, such as pubertal development, need consideration when making decisions about timing of ART initiation in older children.
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De Santis JP, Garcia A, Chaparro A, Beltran O. Integration versus disintegration: a grounded theory study of adolescent and young adult development in the context of perinatally-acquired HIV infection. J Pediatr Nurs 2014; 29:422-35. [PMID: 24486128 PMCID: PMC4096608 DOI: 10.1016/j.pedn.2014.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 01/07/2014] [Accepted: 01/07/2014] [Indexed: 11/18/2022]
Abstract
Adolescents/young adults with perinatally-acquired HIV infection experience a number of issues that impact developmental tasks. No study to date has described the process by which this occurs. The purpose of this grounded theory study was to describe the process by which HIV infection impacts adolescent/young adult development. Interviews were conducted and analyzed with 25 participants age 18 to 24. Six core categories emerged that were used to generate a theory, integration versus disintegration, that describes how perinatal HIV impacts participants' development. The results of this study provide unique clinical considerations for pediatric and adult clinicians providing care for this population.
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Affiliation(s)
- Joseph P De Santis
- University of Miami School of Nursing & Health Studies, Coral Gables, FL.
| | - Ana Garcia
- University of Miami Miller School of Medicine, Department of Pediatrics, Division of Pediatric Infectious Diseases & Immunology, Miami, FL
| | - Aida Chaparro
- University of Miami Miller School of Medicine, Department of Pediatrics, Division of Pediatric Infectious Diseases & Immunology, Miami, FL
| | - Oscar Beltran
- University of Texas at El Paso College of Health Sciences/School of Nursing, El Paso, TX
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20
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Loomba-Albrecht LA, Bregman T, Chantry CJ. Endocrinopathies in children infected with human immunodeficiency virus. Endocrinol Metab Clin North Am 2014; 43:807-28. [PMID: 25169569 DOI: 10.1016/j.ecl.2014.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Endocrine changes (including adrenal insufficiency, disorders of growth and puberty, thyroid dysfunction, metabolic abnormalities and osteopenia) accompany human immunodeficiency virus (HIV) infection in pediatric patients. The cause of these changes is multifactorial and includes direct viral effects of HIV, and effects of antiretroviral therapy. These effects may be of particular importance in childhood given the critical developmental processes that occur during this time period and the likelihood of prolonged exposure to the virus and medications.
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Affiliation(s)
- Lindsey A Loomba-Albrecht
- Section of Endocrinology, Department of Pediatrics, University of California Davis Medical Center, 2516 Stockton Boulevard, Suite 384, Sacramento, CA 95817-2208, USA.
| | - Thea Bregman
- Department of Pediatrics, University of California Davis Medical Center, 2516 Stockton Boulevard, Suite 216, Sacramento, CA 95817, USA
| | - Caroline J Chantry
- Department of Pediatrics, University of California Davis Medical Center, 2516 Stockton Boulevard, Suite 334, Sacramento, CA 95817-2208, USA
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21
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Foster C, Fidler S. Optimizing antiretroviral therapy in adolescents with perinatally acquired HIV-1 infection. Expert Rev Anti Infect Ther 2014; 8:1403-16. [DOI: 10.1586/eri.10.129] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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22
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Lowenthal ED, Bakeera-Kitaka S, Marukutira T, Chapman J, Goldrath K, Ferrand RA. Perinatally acquired HIV infection in adolescents from sub-Saharan Africa: a review of emerging challenges. THE LANCET. INFECTIOUS DISEASES 2014; 14:627-39. [PMID: 24406145 DOI: 10.1016/s1473-3099(13)70363-3] [Citation(s) in RCA: 262] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Worldwide, more than three million children are infected with HIV, 90% of whom live in sub-Saharan Africa. As the HIV epidemic matures and antiretroviral treatment is scaled up, children with HIV are reaching adolescence in large numbers. The growing population of adolescents with perinatally acquired HIV infection living within this region presents not only unprecedented challenges but also opportunities to learn about the pathogenesis of HIV infection. In this Review, we discuss the changing epidemiology of paediatric HIV and the particular features of HIV infection in adolescents in sub-Saharan Africa. Longstanding HIV infection acquired when the immune system is not developed results in distinctive chronic clinical complications that cause severe morbidity. As well as dealing with chronic illness, HIV-infected adolescents have to confront psychosocial issues, maintain adherence to drugs, and learn to negotiate sexual relationships, while undergoing rapid physical and psychological development. Context-specific strategies for early identification of HIV infection in children and prompt linkage to care need to be developed. Clinical HIV care should integrate age-appropriate sexual and reproductive health and psychological, educational, and social services. Health-care workers will need to be trained to recognise and manage the needs of these young people so that the increasing numbers of children surviving to adolescence can access quality care beyond specialist services at low-level health-care facilities.
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Affiliation(s)
- Elizabeth D Lowenthal
- Departments of Pediatrics and Epidemiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA; Department of Paediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Botswana-UPenn Partnership, Gaborone, Botswana
| | - Sabrina Bakeera-Kitaka
- Department of Paediatrics and Child Health, Makerere University College of Health Sciences, Kampala, Uganda
| | - Tafireyi Marukutira
- Botswana-Baylor Children's Clinical Centre of Excellence, Gaborone, Botswana
| | - Jennifer Chapman
- Department of Paediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kathryn Goldrath
- Departments of Pediatrics and Epidemiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Rashida A Ferrand
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK; Biomedical Research and Training Institute, Harare, Zimbabwe.
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23
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Williams PL, Abzug MJ, Jacobson DL, Wang J, Van Dyke RB, Hazra R, Patel K, Dimeglio LA, McFarland EJ, Silio M, Borkowsky W, Seage GR, Oleske JM, Geffner ME. Pubertal onset in children with perinatal HIV infection in the era of combination antiretroviral treatment. AIDS 2013; 27:1959-70. [PMID: 24145244 PMCID: PMC4143250 DOI: 10.1097/qad.0b013e328361195b] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To evaluate associations of perinatal HIV infection, HIV disease severity, and combination antiretroviral treatment with age at pubertal onset. DESIGN Analysis of data from two US longitudinal cohort studies (IMPAACT 219C and PHACS AMP), conducted during 2000-2012, including perinatally HIV-infected (PHIV) and HIV-exposed but uninfected (HEU) youth. Tanner stage assessments of pubertal status (breast and pubic hair in girls; genitalia and pubic hair in boys) were conducted annually. METHODS We compared the timing of pubertal onset (Tanner stage ≥2) between PHIV and HEU youth using interval-censored models. For PHIV youth, we evaluated associations of HIV disease severity and combination antiretroviral treatment with age at pubertal onset, adjusting for race/ethnicity and birth cohort. RESULTS The mean age at pubertal onset was significantly later for the 2086 PHIV youth compared to the 453 HEU children (10.3 vs. 9.6, 10.5 vs. 10.0, 11.3 vs. 10.4, and 11.5 vs. 10.7 years according to female breast, female pubic hair, male genitalia, and male pubic hair staging, respectively, all P < 0.001). PHIV youth with HIV-1 RNA viral load above 10, 000 copies/ml (vs. ≤10, 000 copies/ml) or CD4% below 15% (vs. ≥15%) had significantly later pubertal onset (by 4-13 months). Each additional year of combination antiretroviral treatment was associated with a 0.6-1.2-month earlier mean age at pubertal onset, but this trend did not persist after adjustment for birth cohort. CONCLUSION Pubertal onset occurs significantly later in PHIV than in HEU youth, especially among those with more severe HIV disease. However, in the current era, combination antiretroviral treatment may result in more normal timing of pubertal onset.
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Affiliation(s)
- Paige L Williams
- aCenter for Biostatistics in AIDS Research bDepartment of Biostatistics, Harvard School of Public Health, Boston, Massachusetts cDepartment of Pediatrics (Infectious Diseases), University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colorado dTulane University School of Medicine, New Orleans, Louisiana eEunice Kennedy Shriver National Institute of Child Health & Human Development, Bethesda, Maryland fDepartment of Epidemiology, Harvard School of Public Health, Boston, Massachusetts gSection of Pediatric Endocrinology, Indiana University School of Medicine, Indianapolis, Indiana hDepartment of Pediatrics, University of Colorado School of Medicine, Denver, Colorado iNew York University School of Medicine, New York jDepartment of Pediatrics, New Jersey Medical School, Newark, New Jersey kSaban Research Institute, Children's Hospital Los Angeles, Los Angeles, California, USA
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24
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Barlow-Mosha L, Ross Eckard A, McComsey GA, Musoke PM. Metabolic complications and treatment of perinatally HIV-infected children and adolescents. J Int AIDS Soc 2013; 16:18600. [PMID: 23782481 PMCID: PMC3691550 DOI: 10.7448/ias.16.1.18600] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/08/2013] [Accepted: 04/16/2013] [Indexed: 12/14/2022] Open
Abstract
The benefits of long-term antiretroviral therapy (ART) are recognized all over the world with infected children maturing into adults and HIV infection becoming a chronic illness. However, the improved survival is associated with serious metabolic complications, including lipodystrophy (LD), dyslipidemia, insulin resistance, lactic acidosis and bone loss. In addition, the dyslipidemia mainly seen with protease inhibitors may increase the risk of cardiovascular disease in adulthood and potentially in children as they mature into adults. Nucleoside reverse transcriptase inhibitors, particularly stavudine, zidovudine and didanosine are linked to development of LD and lactic acidosis. Perinatally infected children initiate ART early in life; they require lifelong therapy with multiple drug regimens leading to varying toxicities, all potentially impacting their quality of life. LD has a significant impact on the mental health of older children and adolescents leading to poor self-image, depression and subsequent poor adherence to therapy. Reduced bone mineral density (BMD) is reported in both adults and children on ART with the potential for children to develop more serious bone complications than adults due to their rapid growth spurts and puberty. The role of vitamin D in HIV-associated osteopenia and osteoporosis is not clear and needs further study. Most resource-limited settings are unable to monitor lipid profiles or BMD, exposing infected children and adolescents to on-going toxicities with unclear long-term consequences. Improved interventions are urgently needed to prevent and manage these metabolic complications. Longitudinal cohort studies in this area should remain a priority, particularly in resource-limited settings where the majority of infected children reside.
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Affiliation(s)
- Linda Barlow-Mosha
- Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Allison Ross Eckard
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, USA
| | - Grace A McComsey
- Department of Pediatric Infectious Diseases and Rheumatology, Case Western Reserve University, Cleveland, OH, USA
| | - Philippa M Musoke
- Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
- Department of Paediatrics and Child Health, School of Medicine, College of health Sciences, Makerere University, Kampala, Uganda
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25
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Kessler M, Kaul A, Santos-Malavé C, Borkowsky W, Kessler J, Shah B. Growth patterns in pubertal HIV-infected adolescents and their correlation with cytokines, IGF-1, IGFBP-1, and IGFBP-3. J Pediatr Endocrinol Metab 2013; 26:639-44. [PMID: 23612635 PMCID: PMC4012610 DOI: 10.1515/jpem-2011-0464] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 03/21/2012] [Indexed: 11/15/2022]
Abstract
OBJECTIVE This study aims to describe the final adult height (FAH) and pubertal growth patterns in human immunodeficiency virus (HIV)-infected adolescents and to compare these to an age-matched population of seroreverting HIV-exposed, uninfected (HEU) adolescents. It further aims to evaluate the interplay of proinflammatory cytokines with insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein 3 (IGFBP-3), and IGFBP-1 during the pubertal growth spurt. METHODS HIV-infected (n=34) and HEU (n=12) adolescents who had achieved FAH were evaluated. Auxologic data, viral load, CD4+ T-lymphocyte (CD4) count, and the use of highly active antiretroviral therapy were obtained via a retrospective chart review. Serum interleukin (IL)-1α, IL-6, tumor necrosis factor (TNF)-α, IGFBP-1, IGFBP-3, and IGF-1 were assessed. RESULTS The mean FAH standard deviation score for the HIV-infected group was -0.78 (±1.1) compared to 0.05 (±0.78) for the HEU (p=0.034). There was a positive correlation between CD4 count and FAH (p=0.019). The mean age and magnitude of peak growth velocity (GV) was within normal limits. IL-1α, IL-6, TNF-α, IGFBP-3, and IGF-1 were not significantly correlated with HIV RNA or height. IGFBP-1 was detectable in 100% of poorly controlled HIV-infected patients and 25% of the HEU cohort (p=0.0003). CONCLUSIONS The FAH of HIV-infected patients was significantly shorter than that of HEU patients, and it positively correlated with CD4 count. Our cohort demonstrated normal timing and magnitude of peak GV during puberty.
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26
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Arpadi SM, McMahon DJ, Abrams EJ, Bamji M, Purswani M, Engelson ES, Horlick M, Shane E. Effect of supplementation with cholecalciferol and calcium on 2-y bone mass accrual in HIV-infected children and adolescents: a randomized clinical trial. Am J Clin Nutr 2012; 95:678-85. [PMID: 22258265 PMCID: PMC3278244 DOI: 10.3945/ajcn.111.024786] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 11/28/2011] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Skeletal abnormalities have been reported in HIV-infected children and adolescents. Although the etiology is not well understood, vitamin D deficiency may be involved. OBJECTIVE The study objective was to evaluate the effect of vitamin D and calcium supplementation on bone mass accrual in HIV-infected youth. DESIGN Perinatally HIV-infected children were randomly assigned to receive vitamin D (100,000 IU cholecalciferol given every 2 mo) and calcium (1 g/d) (supplemented group) or double placebo (placebo group) for 2 y. The total-body bone mineral content (TBBMC), total-body bone mineral density (TBBMD), spine bone mineral content (SBMC), and spine bone mineral density (SBMD) were assessed by using dual-energy X-ray absorptiometry at baseline and at 2 annual follow-up visits. RESULTS Fifty-nine participants, aged 6-16 y, were randomly assigned to either the supplemented (n = 30) or the placebo (n = 29) group. At enrollment, supplemented and placebo groups did not differ with respect to age, sex, dietary intakes of vitamin D and calcium, mean baseline serum 25-hydroxyvitamin D [25(OH)D] concentration, TBBMC, TBBMD, SBMC, or SBMD. Significant increases in serum 25(OH)D were observed in the supplemented group but not in the placebo group. TBBMC, TBBMD, SBMC, and SBMD increased significantly at 1 and 2 y in both groups. No between-group differences were observed at any time before or after adjustment for stage of sexual maturation by mixed linear model analysis. CONCLUSION One gram of calcium per day and oral cholecalciferol at a dosage of 100,000 IU every 2 mo administered to HIV-infected children and adolescents did not affect bone mass accrual despite significant increases in serum 25(OH)D concentrations. This trial was registered at clinicaltrials.gov as NCT00724178.
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Affiliation(s)
- Stephen M Arpadi
- Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
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27
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Schooling CM, Jones HE, Leung GM. Lifecourse infectious origins of sexual inequalities in central adiposity. Int J Epidemiol 2011; 40:1556-64. [PMID: 22158667 DOI: 10.1093/ije/dyr128] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Social disparities in obesity are often more marked among women than men, possibly due to social factors. Taking a life-history perspective, we hypothesized that childhood infections could be relevant via sex-specific effects of immune system activation on sexual development and, hence, body shape. METHODS We used multivariable linear regression to assess the sex-specific, adjusted associations of 'childhood' pathogens [0 (n = 1002), 1 (n = 2199), 2 (n = 3442) or 3 (n = 4833) of HSV1, CMV and hepatitis A antibodies] and 'adult' pathogens [0 (n = 5836), 1 (n = 3018) or ≥ 2 (n = 720) of HSV2, HHV8 and hepatitis B or C) with waist-hip ratio (WHR) and body mass index (BMI) standard deviations (SDs) using NHANES III (1988-94). As validation, we assessed associations with height. RESULTS 'Childhood' pathogens were positively associated with WHR among women [0.18 SD, 95% confidence interval (95% CI) 0.04-0.32 for 3, compared with 0], but not men (-0.04 SD, 95% CI -0.15 to 0.08), adjusted for age, education, race/ethnicity, smoking and alcohol. Further adjustments for leg length barely changed the estimates. There were no such sex-specific associations for BMI or for adult pathogens. 'Childhood', but not 'adult', pathogens were negatively associated with height, adjusted for age, sex, education and race/ethnicity. CONCLUSIONS These observations are consistent with the lifecourse hypothesis that early exposure to infections makes women vulnerable to central obesity. This hypothesis potentially sheds new light on the developmental origins of obesity, and is consistent with the generally higher levels of central obesity among women than men in developing populations.
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Affiliation(s)
- C Mary Schooling
- CUNY School of Public Health, Hunter College, New York, NY 10035, USA.
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28
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Kwok MK, Leung GM, Lam TH, Schooling CM. Early life infections and onset of puberty: evidence from Hong Kong's children of 1997 birth cohort. Am J Epidemiol 2011; 173:1440-52. [PMID: 21558410 DOI: 10.1093/aje/kwr028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
As economic development increases, puberty occurs at younger ages, and this could contribute to an increase in the incidence of cardiovascular diseases and hormone-related cancers. The factors that determine pubertal timing are poorly understood. The growth axis that is active during puberty is active in the first 6 months of life and interacts with the immune system. The authors examined whether prior infections, proxied by number of hospital admissions for infections at different ages, were associated with age at pubertal onset (Tanner stage II) using interval-censored regression in the Children of 1997 cohort, which is a population-representative Chinese birth cohort (n = 7,527). Mediation by growth was also examined. Girls, but not boys, who were hospitalized for infections at least twice in the first 6 months of life experienced pubertal onset about 8 months later (mean = 10.3 years, time ratio = 1.08, 95% confidence interval: 1.04, 1.12) than did those without such hospitalizations (mean = 9.6 years) after adjustment for infant characteristics and socioeconomic position (sex interaction: P = 0.02). There were no such associations for infections at 6 months to ≤8 years of age. Growth did not mediate the association. Early infectious morbidity in girls may be associated with later puberty, perhaps via suppression of the gonadotropic axis. The lowering of the number of infections in early life that accompanies economic development could be an additional factor that contributes to earlier puberty.
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Affiliation(s)
- Man Ki Kwok
- School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region, China
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Kim RJ, Rutstein RM. Impact of antiretroviral therapy on growth, body composition and metabolism in pediatric HIV patients. Paediatr Drugs 2010; 12:187-99. [PMID: 20481647 DOI: 10.2165/11532520-000000000-00000] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Highly active antiretroviral therapy improves survival and growth in children with HIV infection. However, its use can be associated with adverse changes in body composition and metabolism. Bone mineral density can be adversely affected in HIV-positive children due to nutritional compromise or certain antiretrovirals. HIV-associated lipodystrophy, consisting of redistribution of adipose tissue, insulin resistance, and dyslipidemia, has also been described in children. Pediatric HIV patients may be at greater risk for these problems because of their longer potential lifetime exposure to these agents and because childhood is normally a period of rapid growth and tissue accretion. Healthcare providers for children with HIV infection must be aware of the potential complications associated with HIV antiretrovirals so that their antiviral efficacy can be balanced against their risk for side effects. In this review, we discuss the alterations in childhood growth and body composition that occur in HIV-infected children, and describe the impact of antiretroviral therapy on these outcomes. The problem of HIV-associated lipodystrophy syndrome in children is also discussed. Children with HIV should have their growth and body composition systematically monitored. Antiretroviral regimens should be tailored to optimize adherence and viral suppression while minimizing the potential for adverse side effects.
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Affiliation(s)
- Roy J Kim
- Division of Endocrinology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.
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Banerjee T, Pensi T, Banerjee D, Grover G. Impact of HAART on survival, weight gain and resting energy expenditure in HIV-1-infected children in India. ACTA ACUST UNITED AC 2010; 30:27-37. [PMID: 20196931 DOI: 10.1179/146532810x12637745451915] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND In resource-limited countries, use of highly active antiretroviral therapy (HAART) in HIV-infected children is still poorly documented in terms of impact on survival, the immune system and growth. Since the availability of HAART, nutrition of HIV-infected children has been neglected. AIM To evaluate the effect of HAART on survival and immune response in HIV-infected children and to investigate the response to nutritional support. METHODS In December, 2002 a cohort study was carried out on vertically HIV-1-infected children and was observed longitudinally for CD4(+) T-cell count, antiretroviral treatment and weight until 31 December 2007. Z-scores were calculated for CD4(+) T-cell count to account for age-related differences. Nutritional supplementation was given to all the HIV-infected children and resting energy expenditure (REE) was calculated. Mortality rates were also calculated for the perinatally infected children followed up at the HIV clinic. RESULTS A total of 180 children were assessed, 100 (56%) of whom were on HAART. Baseline body mass index was lower in the HAART group (p<0.05). Median duration of survival from date of diagnosis was 15.1 years. Those who received HAART survived significantly longer. The average annual mortality rate was 1.2% during 2005-2006. During HAART, a CD4 Z-score increase of 1 SD was associated with a 0.35 increase in body weight Z-score (p<0.001). The increase in daily energy intake owing to nutritional supplementation was associated with increase in weight Z-score in both the no-HAART and HAART group. REE was independently associated with weight change in the models which tested association of changes in CD4(+) T-cell Z-score and daily REE/kg body weight with changes in body weight Z-score in both the HAART and no-HAART group and then separately in the two groups (p<0.001). CONCLUSION Survival rates of children improved which correlated with an increase in CD4(+) T-cell count concurrent with the expanded use of HAART. HAART had a positive effect on growth in HIV-1-infected children. Nutrition supplementation improved the health of children in both the no-HAART and HAART groups.
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Affiliation(s)
- T Banerjee
- Department of Statistics, University of Delhi, Delhi, India.
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Li R, Jaspan H, O'Brien V, Rabie H, Cotton M, Nattrass N. Positive futures: a qualitative study on the needs of adolescents on antiretroviral therapy in South Africa. AIDS Care 2010; 22:751-8. [DOI: 10.1080/09540120903431363] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- R.J. Li
- a AIDS and Society Research Unit , University of Cape Town , Cape Town , South Africa
| | - H.B. Jaspan
- b Faculty of Health Sciences , University of Cape Town , Cape Town , South Africa
- c Tygerberg Children's Hospital , Tygerberg , South Africa
| | - V. O'Brien
- c Tygerberg Children's Hospital , Tygerberg , South Africa
| | - H. Rabie
- c Tygerberg Children's Hospital , Tygerberg , South Africa
- d Department of Paediatrics and Child Health , Stellenbosch University , Tygerberg , South Africa
| | - M.F. Cotton
- c Tygerberg Children's Hospital , Tygerberg , South Africa
- d Department of Paediatrics and Child Health , Stellenbosch University , Tygerberg , South Africa
| | - N. Nattrass
- a AIDS and Society Research Unit , University of Cape Town , Cape Town , South Africa
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Total body and spinal bone mineral density across Tanner stage in perinatally HIV-infected and uninfected children and youth in PACTG 1045. AIDS 2010; 24:687-96. [PMID: 20168204 DOI: 10.1097/qad.0b013e328336095d] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To characterize total body bone mineral content (BMC) and total body and spinal bone mineral density (BMD) in perinatally HIV-infected and uninfected children/youth across puberty. DESIGN HIV-infected (7-24 years) were randomly selected from six strata based on Tanner stage/protease inhibitor use. HIV-uninfected were frequency-matched by Tanner group and sociodemographic background to the HIV-infected. METHODS Dual-energy X-ray absorptiometry (DXA) measured BMC and BMD. Linear regression models tested differences in bone outcomes by HIV and the interaction of HIV by Tanner group (1-2, 3-4, 5). Models were performed separately by sex and adjusted for DXA scanner, race/ethnicity, height, age and lean body mass. RESULTS HIV-infected (N = 236) and uninfected (N = 143) were comparable on sex and race/ethnicity. HIV-infected were slightly older (median 12.6 versus 11.9 years). In adjusted models, HIV-infected males had significantly lower total body BMC and total body and spinal BMD at Tanner 5, lower BMC at Tanner 3-4 and similar BMC and BMD at Tanner 1-2, compared to HIV-uninfected males. HIV-infected and uninfected girls did not differ significantly on any bone outcome, but there was a marginally significant interaction of HIV and Tanner group for spinal BMD. Kaletra/ritonavir was associated with lower BMC and total body BMD and nevirapine was associated with higher spinal BMD in a model with all HIV-infected. CONCLUSIONS Perinatally HIV-infected males showed more evidence of lower bone density especially in the final stage of pubertal development than HIV-infected girls and they may be at increased risk for bone disease during adulthood.
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Isanaka S, Duggan C, Fawzi WW. Patterns of postnatal growth in HIV-infected and HIV-exposed children. Nutr Rev 2009; 67:343-59. [PMID: 19519675 DOI: 10.1111/j.1753-4887.2009.00207.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
HIV infection can contribute to disturbances in both linear growth and weight gain in early childhood, with disturbances often apparent as early as 3 months of age. There is little evidence for a difference in the early growth of HIV-exposed but uninfected children compared to healthy controls. Owing to the close association of growth with immune function and clinical progression, an understanding of growth patterns may be an important tool to ensure the provision of appropriate care to HIV-infected and exposed children. Timely growth monitoring may be used to improve the clinical course and quality of life of these children.
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Affiliation(s)
- Sheila Isanaka
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, USA.
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Rakhmanina NY, Capparelli EV, van den Anker JN. Personalized therapeutics: HIV treatment in adolescents. Clin Pharmacol Ther 2008; 84:734-40. [PMID: 18830226 PMCID: PMC2803031 DOI: 10.1038/clpt.2008.187] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Adolescents infected with human immunodeficiency virus (HIV) represent a heterogeneous group of pubertal children and young adults. Antiretroviral therapy (ART) in adolescents is complex and depends on multiple factors. The continued use of higher (weight- or surface-based) pediatric doses can result in potentially toxic drug exposure, whereas early introduction of lower adult doses can lead to the development of drug resistance and virologic failure. The physiological and psychosocial changes during puberty create strong grounds for an individualized therapeutic approach in HIV-infected adolescents.
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Affiliation(s)
- N Y Rakhmanina
- Division of Infectious Disease, Children's National Medical Center/George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
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Buonora S, Nogueira S, Pone MV, Aloé M, Oliveira RH, Hofer C. Growth parameters in HIV-vertically-infected adolescents on antiretroviral therapy in Rio de Janeiro, Brazil. ACTA ACUST UNITED AC 2008; 28:59-64. [PMID: 18318951 DOI: 10.1179/146532808x270699] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Growth failure in HIV-infected children is an important factor in either initiating or changing antiretroviral therapy (ART). This study assesses the impact of HIV infection on growth parameters of adolescents who acquired HIV vertically. METHODS This retrospective, longitudinal study involved adolescents aged 10-20 years with vertically-acquired HIV infection who were followed up in one of the three main referral centres for paediatric HIV/AIDS in Rio de Janeiro, Brazil. Length, weight and variables related to demographic, clinical and laboratory issues were analysed. RESULTS 108 subjects were enrolled. Median age was 12.7 years, median duration of follow-up was 97.2 months and 61 (56.5%) were female. The difference between the baseline and final weight Z-scores was -0.31 (p=0.02). Patients with final weight Z-scores < or = -2 used more ART regimens (average 4.13) than those with Z-scores > -2 (average 2.90, p<0.01) and also had a lower final CD4+ cell percentage--average 19% vs 24% (p<0.01), respectively. The difference between baseline and final-height Z-scores was -0.27 (p<0.01). Several factors were associated with a final-height Z-score < or = -2: clinical stage C during follow-up (RR 1.60, 95% CI 1.11-2.31), chronic diarrhoea during follow-up (RR 2.02, 95% CI 1.04-3.90), HAART use (RR 1.41, 95% CI 1.16-1.71), number of ART regimens (p<0.01) and final CD4+ cell percentage (p<0.01). In multivariate analysis, presentation in clinical stage C during follow-up was the only significant variable (OR 4.04, 95% CI 1.23-13.28). CONCLUSION Even on HAART, HIV-infected adolescents have lower growth parameters than the normal population and this is associated with a worse prognosis.
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Affiliation(s)
- Sibelle Buonora
- Department of Pediatrics, Federal University of Rio de Janeiro, Brazil
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Giaquinto C, Rampon O, Penazzato M, Fregonese F, De Rossi A, D'Elia R. Nucleoside and nucleotide reverse transcriptase inhibitors in children. Clin Drug Investig 2007; 27:509-31. [PMID: 17638393 DOI: 10.2165/00044011-200727080-00001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
By the end of 2006, approximately 2.3 million children worldwide were living with HIV infection, representing about 15% of all HIV-infected individuals but only 5-7% of the total population of treated patients worldwide. Despite a general increase in the use of antiretroviral therapy (ART) in resource-limited settings, appropriate care and ART remain inaccessible for most of the world's HIV-infected children. ART of children is challenging because of a general lack of paediatric formulations (including tablets in paediatric strengths), limited options of drugs available for children (some have been approved only for use in adults), different viral and immunological responses, dependency on caregivers for administration of the therapy, and specific issues of toxicity in long-term therapy related to maturation and development. As in adults, nucleoside reverse transcriptase inhibitors (NRTIs) are a key component of any ART schedule in children, being the recommended 'backbone' treatment in US, European and WHO guidelines, and, indeed, NRTIs have been extensively studied in children. NRTIs are the class of antiretroviral drugs that have more drugs licensed for paediatric use and more paediatric formulations.Generally, the dual NRTI backbone treatment of combination with a non-NRTI (NNRTI) or protease inhibitor (PI) should comprise a cytidine analogue (lamivudine, emtricitabine) and a thymidine analogue (stavudine, zidovudine), guanosine analogue (i.e. abacavir), or nucleotide RTI (NtRTI; i.e. tenofovir). European and US guidelines recommend the use of triple NRTI therapy (abacavir/lamivudine/zidovudine) in children with anticipated poor adherence to other treatment regimens because of tablet burden. In conclusion, while use of ART in children needs to be dramatically increased, selecting and administering the best drug combination for children is still limited by a lack of paediatric formulations and knowledge of drug metabolism, safety and efficacy in children. NRTIs are already a key component of paediatric ART, but fixed-dose combinations and specific research in children are needed to optimise their use. In this article we review the available information to facilitate selection of the best NRTI for backbone treatment in combination ART for HIV-infected children.
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Affiliation(s)
- Carlo Giaquinto
- Department of Pediatrics, Università di Padova, Padova, Italy.
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Alvarez AM, Rathore MH. Hot topics in pediatric HIV/AIDS. Pediatr Ann 2007; 36:423-32. [PMID: 17691626 DOI: 10.3928/0090-4481-20070701-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Ana M Alvarez
- Rainbow Center for Women, Adolescent Children, and Families, USA
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Verweel G, Saavedra-Lozano J, van Rossum AMC, Ramilo O, de Groot R. Initiating highly active antiretroviral therapy in human immunodeficiency virus type 1-infected children in Europe and the United States: comparing clinical practice to guidelines and literature evidence. Pediatr Infect Dis J 2006; 25:987-94. [PMID: 17072119 DOI: 10.1097/01.inf.0000242670.11693.56] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Several guidelines are available to guide the initiation of highly active antiretroviral therapy (HAART) in human immunodeficiency virus (HIV)-infected children. The recommendations in these guidelines show significant variability. Because there is no well-established evidence on when to start HAART, it is left to the discretion of the pediatrician which guidelines to follow. We conducted a survey concerning the indications for starting antiretroviral therapy among pediatricians involved in the treatment of HIV-infected patients in Europe and the United States. We compared the results of this survey with the guidelines available at the time, the recently adapted guidelines and literature evidence. Our results indicate that in clinical practice HAART was initiated at higher viral loads and lower CD4 counts than recommended by the guidelines. American guidelines recommended and still recommend more aggressive treatment than the European guidelines, and this is reflected in clinical practice. Until recently all guidelines were based on long term risk analyses of progression to acquired immunodeficiency syndrome (AIDS) and death performed in cohort data. A recent short term risk analysis makes it possible to calculate the 6 or 12-month risk for progression to AIDS or death for an individual child. Because viral load and CD4 count are typically measured every 3 months, one can argue that it is clinically more relevant to base the decision of when to start HAART on the short term probability of disease progression. Guidelines in Europe are now based on this type of analysis. The American guidelines only adopted the thresholds for CD4 and viral load. The short term risk analysis also shows that the risk for developing AIDS varies markedly with age. This should be reflected in all guidelines. Determining the acceptable risk of disease progression is difficult and influenced by patient-, doctor- and culture-related factors. The controversy over whether or not to treat asymptomatic infants is unresolved as well. All infants have a very high risk of disease progression regardless of their viral load or CD4 count, but lifelong treatment with a potential for significant toxicities and risk of developing resistance is also not an appealing option. We recommend an attempt to achieve a consensus among the different working groups to reduce the number of different guidelines, which should be based on the literature evidence. Because all risk analyses are based on information from the pre-HAART era, a head-to-head trial comparing early versus deferred HAART would be useful. This may be difficult to accomplish. The first step could be an analysis of retrospective data from collaborative cohort data.
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Affiliation(s)
- Gwenda Verweel
- Department of Pediatrics, Division of Pediatric Infectious Diseases, ErasmusMC-Sophia Children's Hospital, Rotterdam, the Netherlands
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Scherpbier HJ, Bekker V, van Leth F, Jurriaans S, Lange JMA, Kuijpers TW. Long-term experience with combination antiretroviral therapy that contains nelfinavir for up to 7 years in a pediatric cohort. Pediatrics 2006; 117:e528-36. [PMID: 16481448 DOI: 10.1542/peds.2005-1272] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE We sought to provide long-term data on the clinical, immunologic, and virologic response to highly active antiretroviral therapy in infants and children who are naive to protease inhibitors. METHODS HIV-1-infected children who were naive to protease inhibitors were treated with a combination of nelfinavir and 2 nucleoside reverse transcriptase inhibitors (stavudine and lamivudine) in an observational, prospective, single-center study. Virologic failure-free survival was assessed by Kaplan-Meier analyses. The increase in CD4+ T cells during follow-up was estimated with a generalized linear model incorporating repeated measurements. RESULTS Thirty-nine HIV-1-infected children were included and followed for a median period of 227 weeks (interquartile range: 108-275 weeks). The virologic failure-free survival rate was 74%, 66%, 58%, and 54% after 48, 96, 144, and 240 weeks, respectively. Children who experienced virologic failure in 48 weeks (or 96 weeks) were younger at baseline compared with the responders (0.8 vs 5.3 years). Eighteen children remained on the regimen for >5 years. All children, including the nonresponders, showed a sustained immunologic response. Grades 3 to 4 toxicity was observed in 2 patients only. Eleven developed clinically evident lipodystrophy. CONCLUSION Combination therapy can be used safely in infants and children over a long period. Young age is strongly associated with virologic failure. Although the virologic response declined, immunologic parameters and clinical improvement were sustained up to 7 years, at the expense of lipodystrophy.
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Fraaij PLA, van Kampen JJA, Burger DM, de Groot R. Pharmacokinetics of antiretroviral therapy in HIV-1-infected children. Clin Pharmacokinet 2005; 44:935-56. [PMID: 16122281 DOI: 10.2165/00003088-200544090-00004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The initiation of antiretroviral therapy has resulted in an impressive reduction in the rate of disease progression in AIDS and HIV-1-related deaths in children; however, there are still several major challenges to be faced in order to improve therapy. A major topic that needs to be dealt with is the establishment of the optimal dosage of antiretroviral therapy for children. This review presents the currently available peer-reviewed data on the pharmacokinetics of nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs) and fusion inhibitors (FIs) in children. In addition, the data are discussed in relation to the currently available European and US guidelines and the US FDA-approved drug labels. High intra- and interpatient variability in pharmacokinetics are often observed for all antiretroviral drugs. The number of children included in the pharmacokinetic studies is often small and children are often divided into divergent groups using different dosage levels and/or drug formulations. For a substantial number of antiretroviral drugs, dosage recommendations, especially for young children, are still absent in the European and US guidelines. The recommended drug dosages in the guidelines are often different from that in the officially approved drug product label. In addition, the recommended drug dosages may deviate between the European and US guidelines. Thus, while practioners aim to meet the recommendations in the official guidelines, patients may receive highly divergent dosages of medication. The high intra- and interpatient variability in pharmacokinetics of antiretroviral drugs in children hampers the application of fixed dosages of antiretroviral drugs. For PIs and NNRTIs, plasma drug levels correlate with viral suppression and drug toxicity. NRTIs are prodrugs that are intracellularly converted to their active triphosphate form and, therefore, plasma NRTI levels correlate poorly with viral suppression. Therapeutic drug monitoring of PIs and NNRTIs should be considered to optimise HIV therapy in children.
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Affiliation(s)
- Pieter L A Fraaij
- Department of Pediatrics, Erasmus MC/Sophia Children's Hospital, Rotterdam, The Netherlands
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Jacobson DL, Spiegelman D, Duggan C, Weinberg GA, Bechard L, Furuta L, Nicchitta J, Gorbach SL, Miller TL. Predictors of bone mineral density in human immunodeficiency virus-1 infected children. J Pediatr Gastroenterol Nutr 2005; 41:339-46. [PMID: 16131991 DOI: 10.1097/01.mpg.0000174468.75219.30] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES To compare bone mineral density (BMD) among human immunodeficiency virus (HIV)-infected children with population norms and to determine predictors of BMD in HIV-infected children. METHODS Total body BMD was measured by dual energy x-ray absorptiometry in 37 HIV-infected children and nine sibling controls at baseline. Clinical, dietary and anthropometric data were obtained at the time of the dual energy x-ray absorptiometry examination. Age- and gender-adjusted z scores were calculated for BMD, body mass index, weight and height from population standards. Age-adjusted percentiles were determined for dietary intake of calcium and vitamin D. Differences in BMD z scores between HIV-infected children and sibling controls were determined and adjusted for height and weight, as were independent risk factors for lower BMD among infected children. Eighteen HIV-infected children and 5 controls had serial BMD measures. RESULTS Compared with population norms, HIV-infected children had significantly lower BMD z scores (-0.51 SD, P = 0.004), in contrast with controls who had normal z scores (0.38 SD, P = 1.0). However, there was no difference in BMD z scores between HIV-infected children and the small number of sibling controls, adjusted for height and weight. Among HIV-infected children, lower BMD z scores were independently associated with lower weight z scores (P < 0.0001), lower height z scores (P = 0.01), advanced (stage B or C) HIV stage (P = 0.01) and age greater than 8 years (P < 0.0001). In the same model, multivitamin use (P = 0.009) and African American race (P = 0.001) were associated with better BMD z scores, with nevirapine use showing borderline positive effect (P = 0.06). All results were adjusted for Tanner stage. Change in BMD z score over time showed that there was no change or an increase in BMD in 100% of controls but in only 44% of the HIV-infected children (P = 0.09). CONCLUSION When compared with population norms, HIV-infected children had lower than expected bone mass for their age and gender that may be attributable to delays in growth, sexual maturity, time (length of HIV infection), ethnicity and disease severity. Dietary intake of calcium and vitamin D were not associated with bone loss, but most children had suboptimal intake. However, multivitamin use was strongly associated with better bone mineral density.
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Affiliation(s)
- Denise L Jacobson
- Department of Public Health and Family Medicine, Tufts University School of Medicine, Boston, Massachusetts, USA
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Affiliation(s)
- C Dollfus
- Service d'hématologie et d'oncologie pédiatriques, hôpital d'enfants-Armand-Trousseau, 26, avenue du Docteur-Arnold-Netter, 75571 Paris cedex 12, France
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Kang DH, Kim CJ, Suh Y. Sex differences in immune responses and immune reactivity to stress in adolescents. Biol Res Nurs 2004; 5:243-54. [PMID: 15068654 DOI: 10.1177/1099800403262749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The immune system is the body's major defense mechanism against disease. However, psychosocial factors, such as stress, can modulate various immune responses. Although they have been examined in adult humans and other animals, sex differences in immune responses and immune reactivity to stress have rarely been examined in adolescents, particularly comparing healthy and asthmatic adolescents. In 151 healthy and asthmatic high school adolescents (91 females and 60 males), natural killer cell (NK) cytotoxicity, polymorphonuclear leukocyte (PMN) superoxide release, lymphocyte proliferative responses, and CD subsets were measured twice: once during mid-semester and again during final examinations. There was little difference in these measures between healthy and asthmatic adolescents. Similarly, only sex difference was noted in NK cytotoxicity at a 25:1 effector-to-target cell ratio, with males showing significantly higher responses than females. For PMN superoxide release, females significantly increased their responses during final examinations, whereas males demonstrated no changes. For lymphocyte proliferative responses, both females and males increased their responses during final examinations, but the magnitude of increase was much greater in males. Furthermore, racial comparisons indicated that African American adolescents (n = 16), as compared with Caucasian adolescents (n = 128), had significantly higher responses in PMN superoxide release to N-Formyl-Met-Leu-Phe (FMLP) activation during mid-semester and lymphocyte proliferative responses at both time points. Nevertheless, the overall findings indicate limited differences in immune responses and immune reactivity to stress in adolescents between males and females, healthy and asthmatic adolescents, and Caucasians and African Americans. However, further investigations with larger samples are warranted.
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Affiliation(s)
- Duck-Hee Kang
- School of Nursing, University of Alabama-Birmingham, 1530 3rd Ave. S., 213 NB, Birmingham, AL 35294-1210, USA.
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Buchacz K, Rogol AD, Lindsey JC, Wilson CM, Hughes MD, Seage GR, Oleske JM, Rogers AS. Delayed onset of pubertal development in children and adolescents with perinatally acquired HIV infection. J Acquir Immune Defic Syndr 2003; 33:56-65. [PMID: 12792356 DOI: 10.1097/00126334-200305010-00009] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To examine whether greater severity of HIV infection is associated with delayed initiation of pubertal development among perinatally HIV-infected children, and to compare sexual maturation of perinatally HIV-infected children with children in the general US population using the National Health and Nutrition Examination Survey III. METHODS In a prospective cohort study, the authors studied 983 HIV-infected children aged 6 to 18 years, who had Tanner stage assessed on at least two occasions between 1995 and 2000. Analyses were conducted separately for girls and boys to identify factors associated with onset of puberty or adrenarche (progression beyond Tanner stage 1). RESULTS Among children who were in Tanner stage 1 at their first assessment, 185 of 413 (45%) girls and 144 of 434 (33%) boys entered puberty during the observation period. In multivariate longitudinal regression analyses adjusted for age, race/ethnicity, time interval between study visits, and other clinical factors, girls with severe immunosuppression (CD4% <15) were significantly less likely to enter adrenarche (odds ratio [OR], 0.48; 95% confidence interval [CI], 0.29-0.83) and puberty (OR, 0.57; 95% CI, 0.33-0.96) compared with girls who were not immunosuppressed (CD4% > or =25). For boys, those with severe immunosuppression were significantly less likely to enter adrenarche (OR, 0.52; 95% CI, 0.28-0.96) and tended to be less likely to begin puberty (OR, 0.69; 95% CI, 0.39-1.22) compared with boys who were not immunosuppressed. Qualitative comparisons suggested that HIV-infected children may experience delayed puberty and adrenarche compared with similarly aged children in the general US population. CONCLUSIONS Immunosuppression was associated with delayed pubertal onset in perinatally HIV-infected children. Further studies of perinatally HIV-infected and uninfected children are needed to better quantify the delay in pubertal onset and to compare the pace of pubertal maturation.
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Affiliation(s)
- Kate Buchacz
- Harvard School of Public Health, Boston, Massachusetts, USA
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Galli L, Sabatino G, Zappa M, Barbante E, Chiappini E, de Martino M. Reduced frequency of wheezing respiratory illness in infants with perinatal human immunodeficiency virus-type 1 infection: a model for immunologic and inflammatory mechanisms of airway obstruction? Pediatr Allergy Immunol 2003; 14:42-9. [PMID: 12603710 DOI: 10.1046/j.1439-0388.2003.02104.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A multivariate analysis using a logistic regression model evaluated odds ratio (OR) and 95% confidence limits (95% CL) of pediatrician-diagnosed wheezing respiratory illness in 75 infants with perinatal human immunodeficiency virus-type 1 (HIV-1) infection, 205 uninfected infants of HIV-1 infected mothers, and 1780 infants of HIV-1 uninfected mothers. Infants were prospectively followed-up for the first 2 years of life. Covariates were risk factors for wheezing respiratory illness (preterm delivery, low birth weight, maternal smoking, formula feeding, and neonatal respiratory disorders). Maternal use of illicit drugs in pregnancy, antiretroviral treatment in pregnancy, maternal HIV-1-related clinical condition at the time of delivery were also included in the models when infants of HIV-1 infected mothers were taken into account. Although the frequency of risk factors for wheezing respiratory illness was higher in infants of HIV-1 infected than in those of uninfected mothers, HIV-1 infection emerged as a protective factor [OR: 0.001 (95% CL: 0.0001-0.01); p < 0.001]. The frequency of risk factors was similarly high among infants of infected mothers, but OR was lower in HIV-1 infected than in uninfected infants of infected mothers (0.005; 95% CL: 0.0004-0.06; p < 0.001). Finally, OR was higher in uninfected infants of HIV-1 infected mothers (who evidenced a higher frequency of risk factors) than in infants of HIV-1 uninfected mothers (9.97; 95% CL: 4.87-20.40; p < 0.001). Understanding the reason why HIV-1 protects against wheezing respiratory illness could shed light on the immunologic and inflammatory mechanisms of airway obstruction.
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MESH Headings
- Adult
- Airway Obstruction/epidemiology
- Airway Obstruction/immunology
- Airway Obstruction/microbiology
- Anti-Infective Agents/therapeutic use
- Antiretroviral Therapy, Highly Active
- Chemoprevention
- Female
- Follow-Up Studies
- HIV Infections/drug therapy
- HIV Infections/immunology
- HIV Infections/microbiology
- HIV-1
- Humans
- Infant Welfare
- Infant, Low Birth Weight/immunology
- Infant, Newborn
- Infant, Newborn, Diseases/drug therapy
- Infant, Newborn, Diseases/immunology
- Infant, Newborn, Diseases/microbiology
- Male
- Maternal Welfare
- Mother-Child Relations
- Pneumonia, Pneumocystis/drug therapy
- Pneumonia, Pneumocystis/immunology
- Pneumonia, Pneumocystis/microbiology
- Pregnancy
- Pregnancy Complications, Infectious/drug therapy
- Pregnancy Complications, Infectious/immunology
- Pregnancy Complications, Infectious/microbiology
- Prospective Studies
- Protease Inhibitors/therapeutic use
- Respiratory Sounds/immunology
- Reverse Transcriptase Inhibitors/therapeutic use
- Risk Factors
- Severity of Illness Index
- Treatment Outcome
- Trimethoprim, Sulfamethoxazole Drug Combination/therapeutic use
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Affiliation(s)
- Luisa Galli
- Department of Paediatrics, University of Florence, Florence, Italy
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Newell ML, Borja MC, Peckham C. Height, weight, and growth in children born to mothers with HIV-1 infection in Europe. Pediatrics 2003; 111:e52-60. [PMID: 12509595 DOI: 10.1542/peds.111.1.e52] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Little is known about the independent long-term effect on growth of exposure to maternal human immunodeficiency virus (HIV) infection. Growth patterns in uninfected children who are born to infected mothers have not been described in detail previously beyond early childhood, and patterns over age for infected and uninfected children have not been based on appropriate general population standards. In vertically HIV-infected children, poor growth has been suggested to be an early marker of infection or progression of disease. However, whether growth faltering is an independent HIV-related symptom or caused indirectly by other HIV clinical symptoms requires clarification. This information is needed to inform the debate on a possible effect of antiretroviral combination therapy on the height of infected children and would provide evidence for the use of specific interventions to improve height. The objective of this study was to describe growth (height and weight) patterns in infected and uninfected children who are born to HIV-infected mothers with respect to standards from a general population and to assess age-related differences in height and weight by infection status, allowing for birth weight, gestational age, gender, HIV-related clinical status, and antiretroviral therapy (ART). METHODS Since 1987, children who were born to HIV-infected mothers in 11 centers in 8 European countries were enrolled at birth in the European Collaborative Study and followed prospectively according to a standard protocol. Height and weight were measured at every visit, scheduled at birth; 3 and 6 weeks; 3, 6, 9, 12, 15, 18, and 24 months; and every 6 months thereafter. Serial measurements of height and weight from birth to 10 years of age of 1403 uninfected and 184 infected children were assessed. We fitted linear mixed effects models allowing for variance changes over age and within-subject correlation using fractional polynomials and natural cubic splines. Growth patterns were compared with British 1990 growth standards and by infection status. RESULTS Of the 1587 children enrolled, 810 were male and 777 were female; 1403 were not infected (681 boys, 722 girls), and 184 were infected (88 boys, 96 girls). Neither height nor weight was associated significantly with the main effects of HIV infection status at birth, but differences between infected and uninfected children increased with age. Uninfected children had normal growth patterns from early ages. Infected children were estimated to be significantly shorter and lighter than uninfected children with growth differences increasing with age. Differences in growth velocities between the infected and uninfected children increased after 2 years of age for height and after 4 years of age for weight and were more marked in the latter. Between 6 and 12 months, uninfected children grew an estimated 1.6% faster in height and 6.2% in weight than infected children; between ages 8 and 10 years, these figures were 16% and 44%, respectively. By 10 years, uninfected children were on average an estimated 7 kg heavier and 7.5 cm taller than infected children. Growth in uninfected children who were born before 1994, before the widespread use of ART prophylaxis to reduce vertical transmission, did not substantially differ from that of children who were born after 1994. To investigate whether the growth differences between infected and uninfected children were associated with HIV disease progression, we analyzed growth of infected children using the Centers for Disease Control and Prevention (CDC) clinical classification, in 3 groups: no symptoms, mild or moderate symptoms (A and B), and severe symptoms (C or death). Infected children with mild or serious symptoms lagged behind asymptomatic children in both height and weight, and these differences increased with age. Infected children who were born before availability of ART, before 1988, were more likely to reach a weight below the third centile for age than children who were born after 1994 when effective HIV treatment was widely available. Of the 184 infected children, 67 had been weighed and/or measured at least once while on combination (> or = 2 drugs) ART. Reflecting the longitudinal nature of the European Collaborative Study and the changing availability of HIV treatment, most of these measurements took place after 7 years of age, and therefore analyzing the possible effect of combination therapy on growth is difficult. The z scores for height and weight gain improved substantially in several children who received combination therapy regardless of their CDC clinical classification. To increase available information, we pooled all measurements according to CDC clinical classification and presence of combination therapy at the time of the observation. Weight and height significantly improved for severely ill children after combination therapy. CONCLUSION Using data from this large prospective European study, we investigated in comparison with general British standards growth patterns in the first 10 years of life of HIV-infected and uninfected children who were born to HIV-infected mothers. The duration of follow-up of uninfected as well as infected children makes this a unique data set. We allowed for repeated measurements for each child and the increase of variability in height and weight with age. Growth faltering may be related to the social environment, and our finding that uninfected children have normal growth, which is unaffected by exposure to maternal HIV infection, is consistent with observations that in Europe the HIV-infected population is more like the general population and less socioeconomically disadvantaged than that in the United States. However, HIV-infected children grew considerably slower, and differences between infected and uninfected children increased with age. Growth patterns in asymptomatic infected children were similar to those with only mild or moderate symptoms. However, compared with these 2 groups combined, severely ill children had poorer growth at all ages. Although limited by the small number of children who received combination therapy, severely ill children may benefit from such therapy in terms of improvements in weight and, to a smaller extent, in height. Growth faltering, particularly stunting, may adversely affect a child's quality of life, especially once they reach adolescence, and this should be taken into account when making decisions about starting and changing ART. Additional research will help to elucidate the relationship between combination therapy and improved growth, in particular regarding different regimens and the best timing of initiation for optimizing growth of infected children.
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Affiliation(s)
- Marie-Louise Newell
- Centre for Paediatric Epidemiology and Biostatistics, Institute of Child Health, University College, London, United Kingdom.
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