"INTERGROWTH21st vs customized fetal growth curves in the assessment of the neonatal nutritional status: a retrospective cohort study of gestational diabetes".

BACKGROUND: Gestational diabetes mellitus is associated with increased incidence of adverse perinatal outcomes including newborns large for gestational age, macrosomia, preeclampsia, polyhydramnios, stillbirth, and neonatal morbidity. Thus, fetal growth should be monitored by ultrasound to assess for fetal overnutrition, and thereby, its clinical consequence, macrosomia. However, it is not clear which reference curve to use to define the limits of normality. Our aim is to determine which method, INTERGROWTH21st or customized curves, better identifies the nutritional status of newborns of diabetic mothers. METHODS: This retrospective cohort study compared the risk of malnutrition in SGA newborns and the risk of overnutrition in LGA newborns using INTERGROWTH21st and customized birth weight references in gestational diabetes. The nutritional status of newborns was assessed using the ponderal index. Additionally, to determine the ability of both methods in the identification of neonatal malnutrition and overnutrition, we calculate sensitivity, specificity, positive predictive value, negative predictive value and likelihood ratios. RESULTS: Two hundred thirty-one pregnant women with GDM were included in the study. The rate of SGA indentified by INTERGROWTH21st was 4.7% vs 10.7% identified by the customized curves. The rate of LGA identified by INTERGROWTH21st was 25.6% vs 13.2% identified by the customized method. Newborns identified as SGA by the customized method showed a higher risk of malnutrition than those identified as SGA by INTERGROWTH21st. (RR 4.24 vs 2.5). LGA newborns according to the customized method also showed a higher risk of overnutrition than those classified as LGA according to INTERGROWTH21st. (RR 5.26 vs 3.57). In addition, the positive predictive value of the customized method was superior to that of INTERGROWTH21st in the identification of malnutrition (32% vs 27.27%), severe malnutrition (22.73% vs 20%), overnutrition (51.61% vs 32.20%) and severe overnutrition (28.57% vs 14.89%). CONCLUSIONS: In pregnant women with DMG, the ability of customized fetal growth curves to identify newborns with alterations in nutritional status appears to exceed that of INTERGROWTH21st.

Female ponderal index at birth and idiopathic infertility.

Epidemiological studies have demonstrated an increased risk of developing non-transmittable diseases in adults subjected to adverse early developmental conditions. Metabolic and cardiovascular diseases have been the focus of most studies. Nevertheless, data from animal models also suggest early programming of fertility. In humans, it is difficult to assess the impact of the in utero environment retrospectively. Birthweight is commonly used as an indirect indicator of intrauterine development. This research is part of the ALIFERT study. We investigated a potential link between ponderal index at birth and female fertility in adulthood. Data from 51 infertile and 74 fertile women were analysed. BW was on average higher in infertile women, whereas birth length did not differ between the two groups; thus, resulting in a significantly higher ponderal index at birth in infertile women. Ponderal index at birth has been identified as a risk factor for infertility. These results suggest the importance of the intra-uterine environment, not only for long-term metabolic health but also for fertility.

Regional Overview on the Double Burden of Malnutrition and Examples of Program and Policy Responses: African Region.

Sub-Saharan Africa is experiencing the double burden of malnutrition (DBM) with high levels of undernutrition and a growing burden of overweight/obesity and diet-related noncommunicable diseases (NCDs). Undernourishment in sub-Saharan Africa increased between 2010 and 2016. Although the prevalence of chronic undernutrition is decreasing, the number of stunted children under 5 years of age is increasing due to population growth. Meanwhile, overweight/obesity is increasing in all age groups, with girls and women being more affected than boys and men. It is increasingly recognized that the drivers of the DBM originate outside the health sector and operate across national and regional boundaries. Largely unregulated marketing of cheap processed foods and nonalcoholic beverages as well as lifestyle changes are driving consumption of unhealthy diets in the African region. Progress toward the goal of ending hunger and malnutrition by 2030 requires intensified efforts to reduce undernutrition and focused action on the reduction of obesity and diet-related NCDs. The World Health Organization is developing a strategic plan to guide governments and development partners in tackling all forms of malnutrition through strengthened policies, improved service delivery, and better use of data. It is only through coordinated and complementary efforts that strides can be made to reduce the DBM.

Regional Overview on the Double Burden of Malnutrition and Examples of Program and Policy Responses: Latin America and the Caribbean.

BACKGROUND: Hunger, food insecurity, stunting, anemia, overweight, and noncommunicable diseases (NCDs) may coexist in the same person, household, and community in Latin America and the Caribbean (LAC). The double burden of malnutrition (DBM) is an important cause of disability and premature death, which could be addressed with comprehensive policies such as the Plan of Action for the Prevention of Obesity in Children and Adolescents. This paper summarizes the main policies and actions aimed to prevent undernutrition and obesity. SUMMARY: Several countries are implementing the Plan of Action, Caribbean Public Health Agency is actively supporting Ministries of Health, Education, and Sport to develop school nutrition policies and strategies to create health-promoting environments at school and in their surrounding communities. Chile is implementing the comprehensive child protection system "Chile Crece Contigo" that integrates health, social development, and educational activities to optimize growth and childhood cognitive-motor development. Brazil is implementing policies and plans to commit to international targets regarding food and nutrition security, NCDs and their risk factors. Key Messages: The DBM exists in the Americas and contributes to disability and premature death. The Region is making progress implementing policies and actions addressing the DBM. However, stronger political will and leadership are needed to enact legislation and policies that create and support enabling -environments.

Towards a Multi-Dimensional Index of Child Growth to Combat the Double Burden of Malnutrition.

BACKGROUND: There is growing awareness in the field of public health that combatting the double burden of malnutrition requires approaches that address its multi-dimensional origin, rather than focusing primarily on the biomedical domain. Current frameworks of malnutrition like the UNICEF conceptual framework, and the Lancet Series 2013 framework have been instrumental in understanding the determinants of malnutrition and developing appropriate interventions. However, these frameworks fail to explicitly address issues of agency, that is, about being able to pursue one's goal. The capability approach as originally developed by Amartya Sen includes agency in the causal chain. Summary and key Messages: In the past 5 years, the International Union of Nutritional Sciences Task Force "Towards a multi-dimensional index for child growth and development" has developed a capability framework for child growth, and conducted empirical research applying this framework. The working group discussed what would be needed to further develop the approach and explained the added value to international organisations and policy makers. We suggest developing an index of advantage that will be a proxy for a child's agency. We hypothesise that such an index will explain much of the variance in studying inequalities in child nutrition and thus call for action to improve this focal point.

Effects of altered maternal folate and vitamin B12 on neurobehavioral outcomes in F1 male mice.

Maternal folate and vitamin B12 status during pregnancy may influence development of central nervous system (CNS) in the offspring. Very little attention has been paid to understand the combined effects of both the vitamins during pregnancy. The present study was designed to evaluate the biochemical and behavioral outcomes following alterations in folate and vitamin B12 levels in C57BL/6 mice. The female mice were fed with different combinations of folate and vitamin B12 whereas; males were fed with normal diet for 4 weeks. The mice were mated and the pregnant mice received the same diets as before pregnancy. The F1 male mice were further continued on maternal diet for 6 weeks following neurobehavioral and biochemical assessment. The body weight of the F1 male mice was significantly decreased in the mice that received folate and vitamin B12 deficient diet. Altered cognitive functions were observed in the folate and B12 deficient F1 male mice as assessed by Morris water maze and novel object recognition tests. Spontaneous locomotor activity was decreased in F1 male mice fed with folate and B12 deficient diets. Elevated homocysteine levels and decreased hydrogen sulfide levels were also observed in the brain of F1 male mice on folate and B12 deficient diets. However, GSH and GSSG levels were increased in the brain of the animals supplemented with folate deficient diet with different combinations of B12. The study suggests that exposure of female mice to folate and vitamin B12 deficiency during pregnancy effects in-utero development of fetus, which further leads to behavioral anomalies in adult life and is sufficient to cause impaired cognitive behavior in the subsequent generation. Thus, elucidating the role and importance of maternal dietary folate and B12 ratio during pregnancy.

Fetal and childhood malnutrition during the Korean War and metabolic syndrome in adulthood.

OBJECTIVES: Koreans experienced unexpected shortages of food and refugee life during the Korean War (1950-1953). In the present study, we used the Korean War as a natural experiment for early life malnutrition with the aim of evaluating the risk for metabolic syndrome in adulthood according to participant exposure status during the Korean War. METHODS: We used data from 25 708 participants from the fourth through seventh Korean National Health and Nutrition Examination Survey, a nationally representative database of Korea. By years of birth, we divided the study participants into non-exposed (1959-1963 and 1954-1958), fetal-exposed (1951-1953), early childhood-exposed (1946-1950), late-childhood-exposed (1941-1945), and adolescent-exposed (1936-1940) groups according to participants' ages during the Korean War. We calculated the risk for metabolic syndrome in adult life using logistic regression analysis. RESULTS: Compared with the non-exposed group, women exposed to the Korean War while in utero and during early childhood were associated with increased risk for abdominal obesity and elevated triacylglycerol levels, whereas men showed low high-density lipoprotein cholesterol levels. Fetal and early childhood exposure increased the risk for metabolic syndrome in adults compared with the non-exposed group (fetal-exposed men: odds ratio [OR], 1.28; 95% confidence interval [CI], 0.93-1.76; fetal-exposed women: OR, 1.35; 95% CI, 1.01-1.80; early-childhood-exposed men OR, 1.25; 95% CI, 0.82-1.90; and early-childhood-exposed women OR, 1.41; 95% CI, 0.97-2.06). CONCLUSIONS: Fetal and early childhood experiences during the Korean War were associated with increased risk for some components of metabolic syndrome. The present study suggested that early life malnutrition due to the Korean War may be associated with metabolic syndrome in later life.

Famine exposure in early life is associated with visceral adipose dysfunction in adult females.

PURPOSE: Epidemiologic studies have revealed that early life malnutrition increases later risk of metabolic diseases. The visceral adiposity index (VAI) is a novel sex-specific index that shows promise as a marker of visceral adipose dysfunction. We aimed to explore whether exposure to the Chinese famine between 1959 and 1962 during fetal and childhood periods was related to VAI in adulthood. METHODS: Our data source was SPECT-China, a population-based cross-sectional study in East China. Overall, 5295 subjects from 16 sites were divided into fetal-exposed (1959-1962), childhood-exposed (1949-1958), adolescence/young adult-exposed (1921-1948), and non-exposed (1963-1974) groups. The associations of life periods when exposed to famine with VAI were assessed via linear regression. RESULTS: Compared with the non-exposed women (1963-1974), the fetal- and the childhood-exposed women had significantly greater VAI values (P < 0.05), but this difference was not observed in men. In the fetal- and childhood-exposed women, there was a significant positive association of famine exposure with VAI after adjusting for age, current smoking, rural/urban residence, and economic status (both P < 0.05). Further adjustments for diabetes and hypertension did not attenuate this association (both P < 0.05). However, such association was not observed in men. CONCLUSIONS: Exposure to famine in early life may have a significant association with visceral adipose dysfunction in adult females. The fetal age and childhood may be important time windows for nutrition relief to prevent visceral adipose dysfunction.

The Long-term Health Effects of Fetal Malnutrition: Evidence from the 1959-1961 China Great Leap Forward Famine.

We report evidence of long-term adverse health impacts of fetal malnutrition exposure of middle-aged survivors of the 1959-1961 China Famine using data from the China Health and Retirement Longitudinal Study. We find that fetal exposure to malnutrition has large and long-lasting impacts on both physical health and cognitive abilities, including the risks of suffering a stroke, physical disabilities in speech, walking and vision, and measures of mental acuity even half a century after the tragic event. Our findings imply that policies and programs that improve the nutritional status of pregnant women yield benefits on the health of a fetus that extend through the life cycle in the form of reduced physical and mental impairment.

Valoración clínica del estado nutricional fetal al nacer mediante el Clinical Assessment of Nutritional Status score / Assessment of foetal nutrition status at birth using the CANS score

INTRODUCCIÓN: La malnutrición fetal (MF) traduce una pérdida o fallo de adquisición intrauterina de la cantidad adecuada de grasa y masa muscular, asociando connotaciones pronósticas a corto y largo plazo. Siendo el diagnóstico de MF esencialmente clínico, el objetivo de este trabajo es detectar la incidencia MF mediante el Clinical Assessment of Nutritional Status score(CANS score), y comparar los resultados con los parámetros antropométricos clásicos. PACIENTES Y MÉTODOS: Estudio retrospectivo poblacional de recién nacidos a término entre 2003 y 2014 (n = 14.477). Se clasificaron en recién nacidos de peso adecuado, pequeño y grande para la edad gestacional. Se realizó el CANS score y se calculó el índice ponderal (IP) a todos los recién nacidos incluidos, considerándose MF los puntos de corte: CANS score < 25 e IP < 2,2 g/cm3. RESULTADOS: Mediante el CANS score el 7,6% (n = 1.101) de la población presentó MF, el 50,3% (n = 538) de los recién nacidos de peso pequeño para la edad gestacional, el 76,2% (n = 193) del subgrupo < p3 y el 4,67% (n = 559) de los recién nacidos de peso adecuado para la edad gestacional. El CANS score fue < 25 en el 7,26% (n = 1.043) de los recién nacidos con IP ≥ 2,2 g/cm3 (n = 14.356), y el CANS score fue > 24 en el 49% con IP < 2,2 g/cm 3 (n = 109). CONCLUSIONES: Es conveniente identificar todos aquellos recién nacidos con MF por los riesgos que pueden presentar a corto y largo plazo. La valoración mediante CANS score permite una mejor identificación del estado nutricional de los recién nacidos que empleando únicamente las curvas de peso según la edad gestacional

INTRODUCTION: Foetal malnutrition (FM) is the result of a loss or failure of intrauterine acquisition of the correct amount of fat and muscle mass, with short and long term implications. As the diagnosis of FM is essentially clinical, the aim of this study is to detect the incidence of FM using the Clinical Assessment of Nutritional Status (CANS) score, and compare the results with the classic anthropometric parameters. PATIENTS AND METHODS: Retrospective population of term infants was studied between 2003 and 2014 (n=14,477). They were classified into adequate weight (AGA), small weight (SGA) and large weight (LGA) for gestational age newborns. The CANS score was performed on all infants enrolled in the study, and the ponderal index (PI) was calculated, considering an FM cut off value of a CANS score <25 and PI < 2.2 g/cm3. RESULTS: Using the CANS score, 7.6% (n 1,101) of the population showed FM, 50.3% (n = 538) of SGA, 76.2% (n = 193) subgroup = 559) of AGA. The CANS score was < 25 in 7.26% (n = 1,043) of newborns with PI ≥ 2.2 g/cm3 (n = 14.356), and the CANS score was > 24 in 49% with PI < 2.2 g/cm3 (n = 109). CONCLUSIONS: It is worthwhile identifying all newborns with FM due to the risks they may have in the short and long term. CANS score assessment allows a better identification of nutritional status of infants than only using the curves of weight for gestational age

Elevated levels of protein in urine in adulthood after exposure to the Chinese famine of 1959-61 during gestation and the early postnatal period.

BACKGROUND: Animal models have suggested that undernutrition during gestation and the early postnatal period may adversely affect kidney development and compromise renal function. As a natural experiment, famines provide an opportunity to test such potential effects in humans. We assessed whether exposure to the Chinese famine of 1959-1961 during gestation and early postnatal life was associated with the levels of proteinuria among female adults three decades after exposure to the famine. METHODS: We measured famine intensity using the cohort size shrinkage index and we constructed a difference-in-difference model to compare the levels of proteinuria, measured with a dipstick test of random urine specimens, among Chinese women (n = 70 543) whose exposure status to the famine varied across birth cohorts (born before, during or after the famine) and counties of residence with different degrees of famine intensity. RESULTS: Famine exposure was associated with a greater risk [odds ratio (OR) = 1.54; 95% confidence interval (CI): 1.04, 2.28; P = 0.029) of having higher level of proteinuria among women born during the famine years (1959-61) compared with the unexposed post famine-born cohort (1964-65) in rural samples. No association was observed among urban samples. Results were robust to adjustment for covariates. CONCLUSIONS: Severe undernutrition during gestation and the early postnatal period may have long-term effects on levels of proteinuria in humans, but the effect sizes may be small.

Thyroid function in pregnant women: iodine deficiency after iodine enrichment program.

OBJECTIVE: Significant changes in thyroid function occur during pregnancy which can complicate the interpretation of thyroid function tests. Therefore, normative gestational related reference ranges for thyroid hormones tests are required. The aim of this study was to determine the reference ranges for free triiodothyronine (FT3), free thyroxin (FT4) and thyroid stimulating hormone (TSH) in Iranian pregnant women. METHODS: This study was a cross-sectional observational study conducted in the Obstetrics and Gynecology department, Akbarabadi University Hospital. A single blood sample from 584 pregnant women was analyzed for thyroid function. Serum levels of TSH, FT4, FT3, total T4 (TT4), T3 resin uptake (T3RU) and anti-thyroid peroxidase antibody (TPO Ab) were measured. Urinary iodine was determined in some cases. Reference intervals based on 2.5th and 97.5th percentiles were calculated. RESULTS: The composition of reference population comprising 584 women included 162 in first trimester and 422 in the third trimester. The 2.5th and 97.5th percentiles values were used to determine the reference ranges for FT3, FT4, TT4, T3RU and TSH. These values were T3 1.4 and 2.9 pmol/L, FT4 7.1 and 18 pmol/L, TT4 7.2 and 13.5 µg/dL and TSH 0.5 and 3.9 µg/L, respectively. The level of urinary iodine in 80.5% of the subjects was less than normal. CONCLUSIONS: Serum levels of thyroid hormones are different in Iranian population that could be due to racial differences or differences in iodine intake.

The placental origins of sudden cardiac death.

OBJECTIVE: Most sudden cardiac deaths are due to cardiac arrhythmias, and abnormalities in the autonomic nervous system could underlie them. There is growing evidence that coronary heart disease is associated with alterations of fetal development as a result of variations in the processes of placentation that control fetal nutrition. We hypothesized that placental size would be associated with sudden cardiac death. METHODS: We examined sudden cardiac death within the Helsinki Birth Cohort of 13 345 men and women. RESULTS: One hundred eighty-seven (2.7%) men and 47 (0.7%) women had sudden unexplained cardiac death outside hospital. Sudden death was associated with a thin placenta, the hazard ratio being 1.47 [95% confidence interval (CI) 1.11-1.93, P = 0.006] for each g/cm(2) decrease in thickness. Sudden death was independently associated with poor educational attainment (P < 0.0001). Both of these associations were independent of socio-economic status in later life. CONCLUSION: Sudden death may be initiated by impaired development of the autonomic nervous system in utero as a result of shallow invasion of the spiral arteries in the maternal endometrium and consequent fetal malnutrition.

Fetal and early childhood undernutrition, mortality, and lifelong health.

Child undernutrition is a major public health challenge, estimated to be responsible for 2.2 million annual deaths. Implementation of available interventions could prevent one-third of these deaths. Emerging evidence suggests that breast-feeding can lead to improvements in intelligence quotient in children and lower risks of noncommunicable diseases in mothers and children decades later. Nonetheless, breast-feeding and complementary feeding practices differ greatly from global recommendations. Although the World Health Organization recommends that infants receive solely breast milk for the first 6 months of life, only about one-third of infants in low-income countries meet this goal, just one-third of children 6 to 24 months old in low-income countries meet the minimum criteria for dietary diversity, and only one in five who are breast-fed receive a minimum acceptable diet. Although the potential effects of improved breast-feeding and complementary feeding appear large, funding for research and greater use of existing effective interventions seems low compared with other life-saving child health interventions.

Frequency and risk factors of fetal malnutrition among liveborn singleton term neonates using a computerised perinatal database, 2000-2006.

AIM: The aim of this study was to determine the frequency, risk factors and anthropometric measurements of fetally malnourished, liveborn singleton term neonates. METHODS: The computed delivery room data of 11.741 liveborn singleton term neonates was used to compare malnourished and nourished newborns. RESULTS: Of the total subjects, 577 (4.9%) were malnourished. There were no differences between the groups with regard to gender distribution, Apgar scores, maternal parity, smoking during pregnancy and type of delivery. Maternal age and neonatal gestational age (GA) were significantly lower in malnourished newborns (P < 0.001). Birthweight (BW), birth length (BL) and head circumference (HC) were significantly lower in the malnourished group compared with well-nourished group (P < 0.001). Mean BW (g) was 2724.7 ± 17.0 in the malnourished group versus 3234.3 ± 3.8 in the well-nourished group; BL (cm) was 47.8 ± 0.1 in malnourished versus 49.5 ± 0.0 in well-nourished neonates; HC (cm) was 33.25 ± 0.1 in the malnourished versus 34.3 ± 0.0 in the well-nourished group. Between the groups, there were significant differences in the ratio of small, appropriate and large for GA (P < 0.001). Of the malnourished newborns, 35.5% were small for GA, 63.3% were appropriate for GA and 1.2% were large for GA. CONCLUSION: Fetal malnutrition (FM) still exists despite the advances in current obstetric care. Neonates of adolescent mothers and of low GA are particularly at risk for FM. The BW, BL and HC of fetally malnourished neonates are lower than that of well-nourished neonates. Like term singleton appropriate and small for GA neonates, term singleton large for GA neonates could also have been fetally malnourished.

Baja ingesta de yodo durante la gestación / Low iodine intake during pregnancy

Introducción El yodo es un micronutriente esencial en la alimentación de la embarazada que transfiere al embrión-feto a través del transporte placentario. Existen antecedentes de su importancia para el desarrollo neurológico, pero no ha sido estudiada la relación entre ingesta de yodo y peso placentario ni su repercusión en el neonato (RN).Materiales y métodos Se analizó ingesta de yodo en 77 embarazadas, mediante eliminación urinaria de yodo (EUI) con la técnica modificada por Pino (normal ≥150μg/l). Se midió el peso placentario (PP: normal ≥500g). En el recién nacido se evaluó peso, talla y perímetro cefálico (PC). Se obtuvo el índice placentario (IP: peso placentario/ peso recién nacido) considerando normal ≥0,15.ResultadosLa EUI fue normal en 50 embarazadas (media±DE, 279μg/l±70,22μg/l) y disminuida en 27 (94μg/l ±31,49μg/l). Los RN de madres con EUI baja tenían un peso (3.357g±416,30g; n: 27) no diferente a las madres con yodurias normales (3.489g±560,59g; n: 50). Pero las madres con EUI bajo tenían un 44% de placentas con PP<500g y el análisis de los PC en los RN con bajo PP mostró que eran estadísticamente menores (PP3500g: 36,05cm±0,55cm, n: 54; PP<500g: 33,93cm±15cm, n: 23, p<0,019). El estudio con los IP fue similar aunque no alcanzó la significación estadística 0,17±0,04 (p: 0,066). Los demás parámetros no mostraron diferencias significativas. Conclusión El estudio evidencia una relación entre el PP y PC. Este hallazgo puede ser relacionado con la ingesta de yodo durante el embarazo (AU)

Introduction Iodine is considered to be an essential micronutrient in pregnant women. Iodine placental transport to the embryo-fetus is essential for hormone synthesis and is crucial for nervous system development. However, the relationship between iodine intake and placental weight and its potential implications for the newborn have not been studied. Material and methods Iodine intake was analyzed in 77 pregnant women based on urinary iodine excretion (UIE) levels, measured using Pino's modified method (normal value, ≥150μg/L). Placental weight was measured (PW: normal, ≥500g). In the newborn, weight, height, and head perimeter (HP) were also measured. Placental index (PI: placental weight/newborn weight) was calculated, and was considered normal if ≥0.15.ResultsUIE was normal in 50 pregnant women (mean±SD, 279±70.22μg/L) and decreased in 27 (94±31.49μg/L). Newborns of mothers with low UIE had a similar weight (3357±416.30g; n: 27) to those of mothers with normal UIE (3489±560.59g; n: 50). Forty-four percent of mothers with low UIE had PW <500g, and statistically lower HPs were found in newborns of mothers with low PW (PW3 500g: 36.05±0.55cm, n: 54; PW<500g: 33.93±15cm, n: 23, p<0.019). Similar results were found with PI, but they did not reach statistical significance (0.17±0.04; p=0.066). No differences were seen in all other parameters. Conclusion The study suggests the existence of a relationship between PW and HP. This finding may be related to iodine intake during pregnancy (AU)

[Intrauterine growth retardation and adult outcome]. / Retard de croissance intra-utérin et devenir à l'âge adulte.

The epidemiologist David Barker was among the first to develop the concept that some adult diseases might have their origins during fetal life, based notably on a strong association between low birth weight and the risk of chronic diseases in adulthood (coronary artery disease, hypertension and stroke, type 2 diabetes, and osteoporosis). Several other groups replicated these results in other populations, thus confirming that birth weight is a determining factor of adult health. Intra-uterine growth retardation (IUGR) has been widely used as a marker of poor fetal nutrition and health, but some antenatal nutritional disturbances can increase the risk of diseases later in life without affecting fetal growth. The risk of diseases in adulthood appears to be further increased when IUGR is associated with rapid postnatal catch-up growth. This suggests that fetal malnutrition induces adaptations necessary for fetal survival and health, but that it also undermines future health if the postnatal environment is unfavorable. The fetal origins of adult diseases has major public health implications and calls for reinforced pre- and post-natal prevention strategies.

Perinatal nutrition and immunity to infection.

Epidemiological data provide strong evidence for a relationship between undernutrition and life-threatening infection in infants and children. However, the mechanisms that underlie this relationship are poorly understood. Through foetal life, infancy and childhood, the immune system undergoes a process of functional maturation. The adequacy of this process is dependent on environmental factors, and there is accumulating evidence of the impact of pre- and post-natal nutrition in this regard. This review outlines the impact of nutrition during foetal and infant development on the capacity to mount immune responses to infection. It provides an overview of the epidemiologic evidence for such a role and discusses the possible mechanisms involved.

Perinatal nutrient restriction reduces nephron endowment increasing renal morbidity in adulthood: a review.

Perinatal malnutrition has been included among the causes of renal disease in adulthood. Here, we consider the relationships between early supply of specific nutrients (such as protein, fat, vitamins and electrolytes) and renal endowment. Prenatal and postnatal nutrition mismatch is also discussed. In addition, this article presents the role of nutrition of both mothers and pre-term infants on nephron endowment, with final practical considerations.

Cardiometabolic disease in latin america: the role of fetal programming in response to maternal malnutrition.

Latin America is experiencing an epidemic of cardiovascular disease and type-2 diabetes mellitus. The rise in life-expectancy and increasingly rapid urbanization have resulted in a greater prevalence of overweight, obesity and metabolic syndrome. In Latin America, there is a high level of susceptibility to the development of insulin resistance and low-grade inflammation at relatively low levels of abdominal obesity. This susceptibility is associated with the adaptive response of the fetus to deficient fetal nutrition, which results in a loss of anatomical structures such as nephrons, cardiomyocytes and pancreatic beta cells. These adaptations may prove detrimental if food becomes abundant again after birth. In Latin America, the high prevalence of maternal and fetal malnutrition could mean that the resulting fetal adaptations may contribute to an increased risk of cardiometabolic disease. The socioeconomic differences that exist between developed and underdeveloped countries may be reflected in different biological adaptations, which could invalidate the diagnostic criteria and preventive and therapeutic approaches that have been recommended on the basis of research carried out in populations with different characteristics. Clinical studies are needed to evaluate the effectiveness of interventions recommended for preventing and aiding recovery from cardiometabolic disease in Latin America.