scholarly journals Zinc, copper and iron concentrations in the plasma and diets of lactating Nigerian women

1985 ◽  
Vol 53 (3) ◽  
pp. 427-439 ◽  
Author(s):  
Carl M. F. Mbofung ◽  
Tola Atinmo

1. Zinc, copper, iron, protein and energy intakes of 232 lactating women (consuming self-selected diets during the first 3 months post-partum) were computed from food intake values obtained using a 3 d dietary-recall method. Non-pregnant, non-lactating women (100) served as controls. Blood samples of subjects were also analysed for packed cell volume and haemoglobin concentrations as well as for plasma Zn, Cu and Fe levels by atomic absorption spectrophotometry.2. Except for Fe, intakes of all nutrients measured were significantly lower than recommended dietary allowances for lactation. Daily mean (and SD) Zn, Cu, Fe (mg), protein (g) and energy (MJ) intakes for lactating women were 8.2 (1.6), 1.6 (0.5),29.0 (5.8), 52.4 (9.2) and 10.21 respectively. There was a significant intercorrelation between the different nutrients in the diet.3. Mean (and SD) plasma Zn, Cu and Fe concentrations (μg/l) during the first 3 months of lactation were 666.0 (76.0), 1290.0 (150.0) and 730.0 (185) respectively. These values were significantly (P < 0.05) lower in the case of Zn and Fe and higher in the case of Cu than those of non-pregnant, non-lactating women. Maternal plasma levels of the trace elements also vaned significantly with nutritional status as indexed by haemoglobin status.4. Correlation analysis between dietary and plasma trace element concentrations was significant for Zn (r 0.26, P < 0.00Ol) and Fe (r 0.17, P <0.05). Dietary protein intake was significantly correlated with plasma Zn (r 0.18, P < 0.005) and Fe (r 0.12, P < 0.05).5. While maternal weight, arm circumference and skinfold thickness measurements tended to decrease with increase in the period of lactation, growth performance of entirely breast-fed babies was satisfactory as at the 12th week post-partum.

1967 ◽  
Vol 21 (2) ◽  
pp. 439-451 ◽  
Author(s):  
Nan R. Taggart ◽  
Ruth M. Holliday ◽  
W. Z. Billewicz ◽  
F. E. Hytten ◽  
A. M. Thomson

1. Skinfold thicknesses at seven sites were measured during and after pregnancy in eighty- four women; in forty-eight of these, total body water was measured concurrently.2. Early in pregnancy (10 weeks) the skinfold measurements were highly correlated with each other and with maternal weight, ratio of observed weight to standard weight-for-height,‘dry’ (water-free) weight, and with calculated estimates of body fat.3. At nearly all sites, skinfold thicknesses increased up to about 30 weeks of pregnancy. Increases were greater at ‘central’ and least at ‘peripheral’ sites, and were not proportional to the initial skinfold thickness.4. From 30 to 38 weeks of pregnancy, the patterns were variable: the mid-thigh skinfold continued to increase and at the other sites there was little change or a decrease.5. All sites decreased by a surprisingly large amount between 38 weeks of pregnancy and the end of the first post-partum week. The evidence suggests that this change, which was not related to the presence or absence of oedema, occurred about the time of parturition.6. From the end of the first post-partum week to 6–8 weeks post partum, the changes were again variable.7. The increase of skinfolds during pregnancy was greater in underweight than in overweight women, and in primiparae than in multiparae. The pattern of change was not affected in any consistent manner by oedema.8. The changes in skinfold thicknesses during pregnancy, especially up to about 30 weeks, showed patterns similar to those of total body-weight and ‘dry’ body-weight. A formula is given by means of which ‘dry’ weight can be predicted from five skinfolds, height and duration of gestation.


Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 506 ◽  
Author(s):  
Susana Contreras-Duarte ◽  
Lorena Carvajal ◽  
María Jesús Garchitorena ◽  
Mario Subiabre ◽  
Bárbara Fuenzalida ◽  
...  

Gestational diabetes mellitus (GDM) associates with fetal endothelial dysfunction (ED), which occurs independently of adequate glycemic control. Scarce information exists about the impact of different GDM therapeutic schemes on maternal dyslipidemia and obesity and their contribution to the development of fetal-ED. The aim of this study was to evaluate the effect of GDM-treatments on lipid levels in nonobese (N) and obese (O) pregnant women and the effect of maternal cholesterol levels in GDM-associated ED in the umbilical vein (UV). O-GDM women treated with diet showed decreased total cholesterol (TC) and low-density lipoproteins (LDL) levels with respect to N-GDM ones. Moreover, O-GDM women treated with diet in addition to insulin showed higher TC and LDL levels than N-GDM women. The maximum relaxation to calcitonin gene-related peptide of the UV rings was lower in the N-GDM group compared to the N one, and increased maternal levels of TC were associated with even lower dilation in the N-GDM group. We conclude that GDM-treatments modulate the TC and LDL levels depending on maternal weight. Additionally, increased TC levels worsen the GDM-associated ED of UV rings. This study suggests that it could be relevant to consider a specific GDM-treatment according to weight in order to prevent fetal-ED, as well as to consider the possible effects of maternal lipids during pregnancy.


1984 ◽  
Vol 37 (4) ◽  
pp. 267 ◽  
Author(s):  
JL Whitely ◽  
DL Willcox ◽  
JA Newton ◽  
GD Bryant-Greenwood ◽  
PE Hartmann

The total (bound plus free) concentrations of progesterone, 20a-<iihydroprogesterone, oestradiol-17{:1 and cortisol were determined in the plasma of sows at three stages during pregnancy and more intensively from 5 days pre-partum to 5 days post-partum. The free fractions of progesterone, oestradiol-17{3 and cortisol were measured in the same samples by a rate dialysis method. Up to day 110 of gestation, the amounts of free hormone in plasma did not fluctuate independently of their total concentrations. During farrowing, the total and free concentrations of progesterone and cortisol varied independently of each other, whereas total and free oestradiol-17{3 declined simultaneously. The initiation of parturition was associated with a decrease in circulating total progesterone, and was accentuated by a decrease in the free fraction (P<O� 005) so that its active free concentration was only 20% of its day 1 pre-partum value. Total and free cortisol concentrations rose rapidly during labour so that at 12-18 h after birth of the first piglet 30% of that cortisol in maternal plasma was free hormone.


2020 ◽  
Vol 71 (1) ◽  
pp. 145-153 ◽  
Author(s):  
Gabriele Mascherini ◽  
Cristian Petri ◽  
Elena Ermini ◽  
Angelo Pizzi ◽  
Antonio Ventura ◽  
...  

AbstractSoccer referees are a specific group of the athletes’ population whose careers peak from 30 to 45 years old. An athlete's performance is not only determined by physical training but also by a lifestyle, e.g. eating habits. The purpose of this study was to verify current eating habits and resulting body composition of a group of elite international soccer referees. At an international FIFA seminar 60 elite international soccer referees (aged 39.2 ± 4.2 years) were enrolled. A body composition assessment was performed with skinfold thickness and bio impedance analysis, while eating habits were evaluated with a multi-pass 24-hour dietary recall. The body composition showed a normal weight condition with a fat content of 11.4 ± 2.5%. Macronutrients showed a low level of carbohydrates (43.6 ± 5.4%) and a high level of fat (40.0 ± 4.5%). Micronutrients showed a low level of calcium, potassium, zinc, magnesium, iodine, vitamin B12 and vitamin B9. Even though their body composition was within the normal range, the current eating habits of elite international soccer referees did not appear to follow the nutrition guidelines. Therefore, it would be advisable to provide knowledge on nutrition for this particular category of sports subjects, an individualized nutritional plan would be advisable, in order to achieve and maintain better performance and appropriate body composition for their role.


2021 ◽  
Vol 6 (4) ◽  
pp. 746-753
Author(s):  
Mousumi Akter ◽  
Farzana Alam

The incidence of renal disease is increasing at an alarming rate in Bangladesh. Malnutrition is directly correlated with the prevalence with these diseases. A total of 120 dialysis patients from both sexes having mean age 45±13. 79 years undergoing hemodialysis were enrolled for the study in Khulna city, Bangladesh. Information regarding disease history and associated co morbidities were collected from patient’s files. The personal information, prevalent vices, exercise behavior, dietary modifications and clinical and health status of the patients were recorded by using pre-tested questionnaire. Etiology of the chronic renal disease, complications and biochemical parameters were documented from the case files. Renal failure was more prevalent among male than in female. Diabetes mellitus (31.67%) were the most common etiology for chronic renal failure. Pallor of eyes was the most prevailing sign and the most common symptoms are breathlessness (98%), oliguria (88%), anorexia (67%) and nausea (60%). Nutritional status was assessed by anthropometric measurements using body mass index (BMI), mid arm circumference (MAC) and waist hip ratio (WHR). According to BMI, 43% male are grouped in normal category whereas majority of females (52%) are underweight with no overweight female respondents. 80% male had low adequacy of energy whereas all the female patients had adequacy of energy, carbohydrate and protein on low level. Dietary data was obtained by using 24-hour dietary recall and food frequency questionnaire. Actual intake of calories, protein, fats and minerals was lower than the recommended intake for hemodialysis patients. More than 50 percent of patient on hemodialysis were at risk of malnutrition. Around 32% respondents included fruits as per doctor’s advice whereas water and salted foods were restricted to three fourth of patients to protect kidney. Proper assessment of nutritional status, nutritional management and dietary modification can play a central role in preventing malnutrition of hemodialysis patients. Asian J. Med. Biol. Res. December 2020, 6(4): 746-753


2021 ◽  
Vol 8 ◽  
Author(s):  
Chenlu Yang ◽  
Ai Zhao ◽  
Hanglian Lan ◽  
Zhongxia Ren ◽  
Jian Zhang ◽  
...  

Background: Evidence on the effects of dietary quality on the risk of postpartum depression in the Chinese population is limited. This study aimed to examine the association between dietary quality and postpartum depression in Chinses lactating women.Methods: A total of 939 participants from 10 cities were included in this analysis. A one-time 24-h dietary recall was used to obtain the data on food consumption and dietary quality was assessed based on Diet Balance Index. The Edinburgh postnatal depression scale was considered at a cutoff point of 10 to detect postpartum depression. Poisson regression models were used to explore the association of dietary quality with postpartum depression.Results: Depressed women tended to have a more inadequate intake of vegetables and have more insufficient food variety. The median (25th, 75th) of the overall high bound score (HBS), low bound score (LBS), and diet quality distance (DQD) was 9 (5, 14), 30 (25, 37), and 40 (34, 47), respectively. Compared with subjects with the lowest quartile of LBS, those with the highest quartile of LBS had a higher risk of postpartum depression [adjusted prevalence ratio (aPR), 1.08; 95% confidence interval (95% CI), 1.01, 1.15; P for trend, 0.043]. We also observed a significant association between DQD and postpartum depression (Q4 vs. Q1: aPR, 1.07; 95% CI: 1.00, 1.14; P for trend, 0.036).Conclusion: Poor dietary quality was associated with postpartum depression in Chinese lactating women.


1970 ◽  
Vol 48 (4) ◽  
pp. 639-647 ◽  
Author(s):  
PATRICIA M. NICHOLSON

SUMMARY Polyacrylamide disc gel electrophoresis of aqueous extracts of individual human anterior pituitary glands failed to identify a protein with lactogenic activity which was characteristic of pregnancy and the post-partum period. Lactogenic activity, determined by a semi-quantitative rabbit mammary gland organ culture assay, was largely associated with the growth hormone fraction. The total prolactin activity of individual anterior pituitary glands was determined by a 'local' intradermal pigeon crop sac method. The glands from pregnant and parturient women did not contain a higher concentration of prolactin than those of men or non-pregnant non-lactating women. These results do not provide any evidence for the existence of a human pituitary prolactin distinct from growth hormone. Reasons for this are discussed.


Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 358 ◽  
Author(s):  
Lindsay Ellsworth ◽  
Harlan McCaffery ◽  
Emma Harman ◽  
Jillian Abbott ◽  
Brigid Gregg

In breastfed infants, human milk provides the primary source of iodine to meet demands during this vulnerable period of growth and development. Iodine is a key micronutrient that plays an essential role in hormone synthesis. Despite the importance of iodine, there is limited understanding of the maternal factors that influence milk iodine content and how milk iodine intake during infancy is related to postnatal growth. We examined breast milk samples from near 2 weeks and 2 months post-partum in a mother-infant dyad cohort of mothers with pre-pregnancy weight status defined by body mass index (BMI). Normal (NW, BMI < 25.0 kg/m2) is compared to overweight/obesity (OW/OB, BMI ≥ 25.0 kg/m2). The milk iodine concentration was determined by inductively coupled plasma mass spectrometry. We evaluated the associations between iodine content at 2 weeks and infant anthropometrics over the first year of life using multivariable linear mixed modeling. Iodine concentrations generally decreased from 2 weeks to 2 months. We observed no significant difference in iodine based on maternal weight. A higher iodine concentration at 2 weeks was associated with a larger increase in infant weight-for-age and weight-for-length Z-score change per month from 2 weeks to 1 year. This pilot study shows that early iodine intake may influence infant growth trajectory independent of maternal pre-pregnancy weight status.


1981 ◽  
Vol 22 (2) ◽  
pp. 137
Author(s):  
Kyungza Ryu ◽  
Kab Bum Huh ◽  
Bock Ja Byoun ◽  
Hyun Mo Kwak
Keyword(s):  

1987 ◽  
Vol 58 (3) ◽  
pp. 369-381 ◽  
Author(s):  
Claire Schofield ◽  
Erica Wheeler ◽  
Judy Stewart

1. Dietary records were obtained twice in pregnancy and once post-partum from 265 women from all social classes in London and Edinburgh.2. The London women always had higher mean energy, protein, fat and fibre intakes. Significant between-region differences emerged.3. Some between-social classes differences occurred, but were not consistently significant.4. All mean energy and fibre intakes were lower, and protein and fat intakes were higher, than current recommendations.5. Of lactating women 15% claimed to be dieting.6. The percentage dietary energy derived from fat varied from 36 (in a dieting group) to 42.


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