Orientador: Sergio Alberto Rupp de Paiva / Resumo: A gravidez é uma fase do ciclo de vida em que a nutrição desempenha um papel muito importante, uma vez que esta influência o produto da concepção. O objetivo deste estudo foi descrever o estado nutricional de gestantes do município de Botucatu que se localiza na região centro sul do estado de São Paulo, distando aproximadamente 230km da Capital. A população é predominantemente urbana. Foram estudadas 496 gestantes com idade de 13-43 anos submetidas a entrevista para obtenção de dados socioeconômicos, demográficos e dietéticos, e coleta de sangue. Dentre as mulheres 83% eram brancas. 30,5% de adolescente, a renda mostrou que 69% estava abaixo da linha de pobreza, a escolaridade mostrou 63% era baixa, 79% casada, 25% eram fumantes, 41% eram primigestas e 12% apresentaram positividade para o exame parasitológico. As medianas para as variáveis antropométricas (percentagem de gestantes abaixo do ponto de corte) foram para: peso pré gestacional-56,0 kg;(20), peso gestacional-58,1 kg (15); estatura -158 cm(9), índice de massa corpórea pré gestacional-22,0 kg/m2 (18,7), circunferência do braço-270 mm (8,0), prega tricipital-8,6 mm (4,0).O IMC, ainda detectou 17,5% acima da normalidade. O ganho de peso semanal foi 180 g, mostrando valores maiores nas gestantes com IMC abaixo da normalidade. As medianas da ingestão de nutrientes (percentagem de gestantes que ingerem menos que 100% do RDA) foram para : energia 2186 Kcal (73), proteína 64,5 g (42), vitamina A 647,6 mg (56), a tocoferol 4,3 mg (100), vitamina C 106,0 mg (30) e ferro 11,0 mg (99). Os exames bioquímicos mostraram as medianas (percentagem abaixo do ponto de corte): hemoglobina 13,0 g/dL (3),ferro 92mg/dL (13), saturação da transferrina... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Pregnancy is a life cycle where nutrition plays an important role once it influences the product of conception. This study aimed to describe nutritional status of pregnant women in Botucatu located in the southern part of the State of São Paulo, 230 km far from the capital (São Paulo City). Population is predominantly an urban one. Pregnant women (496) between 13 and 43 years old were studied and subjected to interviews to obtain social, economic, demographic, dietetic data a well as blood sampling. Within the women 83% were white, 30.5% adolescents and the income showed that 69% were down poverty line, education was low 63%; 79% were married, 25% were smokers, 41% were pregnant for the first time, and 12% were positive for parasitological exam. Medians and anthropometric variables (percentage of pregnant women below cut point) were: pre-gestational weight - 56.0 kg (20) gestational weight - 58.1 kg (15) height 158 cm (9) ; pre-gestational body mass index 22.0 kg/m2 (15.o); arm circumference 270 mm (8.0); tricipital fold 18.6 mm (4.0) . BMI also detected 15.5% above normality. Weekly weight gain was 180g, with higher values on below normal BMI pregnant women. Nutrients intake medians (percentage of pregnant women who intake less than 100 % of RDA) was: energy 2186 Kcal (73), protein 64.5g (42) , vitamin A 647.mg (56), a- tocopherol 4.3 mg (100), vitamin C 106.0 mg (30) and iron 11.0 mg (99). Biochemical examinations showed medians (percentage below cut point) : hemoglobin 13.0 g/dL (3), iron 92 μ/dL (13), transferrin saturation 30.0% (8), ferritine... (Complete abstract click electronic access below) / Mestre

Made available in DSpace on 2014-06-11T19:27:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2002Bitstream added on 2014-06-13T20:35:37Z : No. of bitstreams: 1 cassettari_ml_me_botfm.pdf: 612511 bytes, checksum: 91a08595afc714e2109c38cfafc15036 (MD5) / A gravidez é uma fase do ciclo de vida em que a nutrição desempenha um papel muito importante, uma vez que esta influência o produto da concepção. O objetivo deste estudo foi descrever o estado nutricional de gestantes do município de Botucatu que se localiza na região centro sul do estado de São Paulo, distando aproximadamente 230km da Capital. A população é predominantemente urbana. Foram estudadas 496 gestantes com idade de 13-43 anos submetidas a entrevista para obtenção de dados socioeconômicos, demográficos e dietéticos, e coleta de sangue. Dentre as mulheres 83% eram brancas. 30,5% de adolescente, a renda mostrou que 69% estava abaixo da linha de pobreza, a escolaridade mostrou 63% era baixa, 79% casada, 25% eram fumantes, 41% eram primigestas e 12% apresentaram positividade para o exame parasitológico. As medianas para as variáveis antropométricas (percentagem de gestantes abaixo do ponto de corte) foram para: peso pré gestacional-56,0 kg;(20), peso gestacional-58,1 kg (15); estatura -158 cm(9), índice de massa corpórea pré gestacional-22,0 kg/m2 (18,7), circunferência do braço-270 mm (8,0), prega tricipital-8,6 mm (4,0).O IMC, ainda detectou 17,5% acima da normalidade. O ganho de peso semanal foi 180 g, mostrando valores maiores nas gestantes com IMC abaixo da normalidade. As medianas da ingestão de nutrientes (percentagem de gestantes que ingerem menos que 100% do RDA) foram para : energia 2186 Kcal (73), proteína 64,5 g (42), vitamina A 647,6 mg (56), a tocoferol 4,3 mg (100), vitamina C 106,0 mg (30) e ferro 11,0 mg (99). Os exames bioquímicos mostraram as medianas (percentagem abaixo do ponto de corte): hemoglobina 13,0 g/dL (3),ferro 92mg/dL (13), saturação da transferrina... / Pregnancy is a life cycle where nutrition plays an important role once it influences the product of conception. This study aimed to describe nutritional status of pregnant women in Botucatu located in the southern part of the State of São Paulo, 230 km far from the capital (São Paulo City). Population is predominantly an urban one. Pregnant women (496) between 13 and 43 years old were studied and subjected to interviews to obtain social, economic, demographic, dietetic data a well as blood sampling. Within the women 83% were white, 30.5% adolescents and the income showed that 69% were down poverty line, education was low 63%; 79% were married, 25% were smokers, 41% were pregnant for the first time, and 12% were positive for parasitological exam. Medians and anthropometric variables (percentage of pregnant women below cut point) were: pre-gestational weight – 56.0 kg (20) gestational weight - 58.1 kg (15) height 158 cm (9) ; pre-gestational body mass index 22.0 kg/m2 (15.o); arm circumference 270 mm (8.0); tricipital fold 18.6 mm (4.0) . BMI also detected 15.5% above normality. Weekly weight gain was 180g, with higher values on below normal BMI pregnant women. Nutrients intake medians (percentage of pregnant women who intake less than 100 % of RDA) was: energy 2186 Kcal (73), protein 64.5g (42) , vitamin A 647.mg (56), a- tocopherol 4.3 mg (100), vitamin C 106.0 mg (30) and iron 11.0 mg (99). Biochemical examinations showed medians (percentage below cut point) : hemoglobin 13.0 g/dL (3), iron 92 μ/dL (13), transferrin saturation 30.0% (8), ferritine... (Complete abstract click electronic access below)

No description available.

No description available.

Weight, height, skinfold thicknesses, circumference measurements, and 72-hour food records were collected from pregnant women (N=51) at four-week intervals between the 12th and 40th weeks of gestation. Subjects were divided Into two groups according to percent standard prepregnant weight for height: overweight > 110% (N=17) and normal weight < 110% (N=28). Changes In weight, skinfold thicknesses and circumference measurements were similar between the two groups during the third trimester (weeks 28 to 40 of gestation). Significant increases in weight (1.58 kg per four weeks) and waist circumference and significant decreases in calf and abdominal skinfold thicknesses are reported. When the second and third trimesters (weeks 12 to 40 of gestation) were considered mean weight gain was 1 .87 kg per four-week interval. Overweight gravidas demonstrated a significantly greater decrease in abdominal skinfold thickness than normal-weight gravidas. The patterns of change over the second and third trimesters were different between the two groups for abdominal, knee, and calf skinfold thickness, hips and thigh circumference, body fat, and percent body fat. Caloric and macronutrient consumption was similar between groups and did not change throughout the second the two and third trimesters. Maternal weight gain was significantly associated with infant birth weight in both groups. / M.S.

Typescript (photocopy). / Digitized by Kansas Correctional Industries

Typescript (photocopy). / Digitized by Kansas Correctional Industries

The effects of maternal dietary glucose restriction on reproductive performance were investigated by feeding pregnant rats isocaloric diets containing graded levels of dietary glucose (0, 12, 24 and 60%) during pregnancy and during pregnancy and lactation, and by measuring the effects of glucose restriction on (1) maternal, fetal and neonatal metabolism, on (2) growth and composition of the mammary glands and placentas, and (3) on milk composition. Carbohydrate restriction induced maternal metabolic adaptations that were proportional to the severity of the glucose restriction. Placental growth and composition as well as mammary gland composition were not affected by dietary glucose restriction, whereas fetal growth and development and milk composition were significantly impaired when glucose was limited in the maternal diet. This suggests that the effects of dietary glucose on the fetus and on milk composition were not mediated by changes in placenta and mammary gland DNA, protein or glycogen concentrations. Complete dietary glucose restriction significantly depressed fetal liver, lung and heart glycogen concentrations; repletion of the maternal diets with 12 and 24% glucose restored cardiac glycogen to normal but not fetal lung glycogen and liver glycogen. Pups born to dams fed a glucose-free diet failed to survive longer than 24 h postpartum and that was associated with the low levels of tissue glycogen at birth in these pups. At birth, lung and liver glycogen concentration of pups of the 12 and 24% glucose diets was similar to pups of the control diet despite the fact that these reserves were depressed in utero; and these pups efficiently corrected the transient hypoglycemia observed following parturition. The effects of glucose restriction on fetal liver glycogen were not reflected by similar changes in fetal plasma insulin, glucagon and glucose levels or in glycogen synthase and phosphorylase activities. Maternal dietary glucose was an important determinant

Since glucose is an essential nutrient for normal fetal growth and development, the impact of reduced maternal dietary glucose supply, on amniotic fluid (amf) amino acid composition was investigated. Furthermore, this study investigated whether any resulting changes in the concentrations of amf amino acids could be predictive of fetal growth and metabolic status. Pregnant rat dams were fed isocaloric diets containing graded levels of dietary glucose (0, 12, 24 and 60%) and the amf amino acid content was analysed on gestational days (gd) 18.5 to 21.5. Carbohydrate restriction produced significant increases in the concentrations of amf isoleucine (on gd 21.5), tryptophan (on gd 18.5 and 21.5) and 3-methylhistidine (on gd 20.5 and 21.5). An interaction between diet and day of gestation modified amf taurine levels such that dams fed low carbohydrate diets showed significant increases in amf taurine as pregnancy progressed. Specific amf amino acids correlated with fetal growth parameters and fetal tissue glycogen reserves indicating the ability of amf composition to reflect fetal distress under conditions of compromised maternal nutritional status. A greater statistical predictability of amf constituents was obtained with fetal growth parameters than with fetal tissue glycogen reserves. These results suggest that amf amino acids are better predictors of fetal growth status than of fetal metabolic status.

There is no abstract available for this thesis. / Department of Family and Consumer Sciences