| 1. |
- Skröder, Helena M, et al.
(författare)
-
Selenium status in pregnancy influences children's cognitive function at 1.5 years of age
- 2015
-
Ingår i: Clinical Nutrition. - : Elsevier BV. - 0261-5614 .- 1532-1983. ; 34:5, s. 923-930
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND & AIMS: Selenium deficiency has been shown to affect the neurological development in animals, but human research in this area is scarce. We aimed to assess the impact of selenium status during pregnancy on child development at 1.5 years of age.METHODS: This prospective cohort study was nested into a food and micronutrient supplementation trial (MINIMat) conducted in rural Bangladesh. Using inductively coupled plasma mass spectrometry, we measured selenium concentrations in erythrocyte fraction of blood collected from 750 mothers at gestational week 30, and calculated μg per g hemoglobin. A revised version of Bayley Scales of Infant Development was used to assess children's mental and psychomotor development. A Bangladeshi version of MacArthur's Communicative Development Inventory was used to assess language comprehension and expression. Linear regression analyses adjusted for multiple covariates were used to assess the associations.RESULTS: Maternal erythrocyte selenium concentrations varied considerably, from 0.19 to 0.87 μg/g hemoglobin (median 0.46 μg/g hemoglobin), and were associated with developmental measures. An increase in erythrocyte selenium by 0.50 μg/g hemoglobin was associated with an increase in children's language comprehension by 3.7 points (0.5 standard deviations; 95% confidence interval: 0.40, 7.1; p = 0.028). The same increase in erythrocyte selenium corresponded to an increase in the girls' psychomotor development by 12 points (0.9 standard deviation; 95% confidence interval: 4.3, 19; p = 0.002), but much less in boys.CONCLUSIONS: Low prenatal selenium status seems to be disadvantageous for children's psychomotor and language development. Further studies are needed to elucidate the underlying mechanisms of these effects.
|
|
| 2. |
- Alfvén, Tobias, et al.
(författare)
-
Dödligheten minskar, men fortfarande dör 7 miljoner barn varje år
- 2013
-
Ingår i: Läkartidningen. - 0023-7205 .- 1652-7518. ; 110:1-2, s. 28-30
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Millenniemål 4 lyder: »Barnadödligheten under de fem första levnadsåren ska minska med två tredjedelar till 2015 jämfört med år 1990«.Barnadödligheten minskar i stora delar av världen, men inte i tillräckligt snabb takt för att uppnå målet. Den skiljer sig också kraftigt mellan länder och mellan olika grupper inom länderna.Sex dödsorsaker står för mer än 90 procent av alla dödsfall före 5 års ålder: neonatal mortalitet, lunginflammation, diarré, malaria, mässling och HIV/aids. Undernäring beräknas vara delorsak till cirka en tredjedel av dessa dödsfall.Vi har kunskap och metoder att med kostnadseffektiva lösningar reducera barnadödligheten med två tredjedelar. Fortsatt internationellt samarbete, utökade resurser samt lokal, nationell politisk vilja krävs för att lyckas.
|
|
| 3. |
- Fulford, A. J. C., et al.
(författare)
-
Disproportionate early fetal growth predicts postnatal thymic size in humans
- 2013
-
Ingår i: Journal of Developmental Origins of Health and Disease. - 2040-1744 .- 2040-1752. ; 4:3, s. 223-231
-
Tidskriftsartikel (refereegranskat)abstract
- Prenatal events can affect neonatal thymus size and adult immune function. The causal insults are unknown, although fetal nutrient restriction is suspected. We used ultrasound at three time points during pregnancy (14, 19 and 30 weeks) to measure the growth of six fetal dimensions in rural Bangladeshi women participating in the Maternal and Infant Nutrition Interventions, Matlab study. Postnatal ultrasound was used to calculate thymic index (TI) at birth, 2, 6 and 12 m. Of the 3267 women recruited, 2861 participated by providing data at least at one fetal biometry and one TI time point. Patterns of fetal growth were summarized using principal components calculated from fetal dimension z-scores. Random effects regression, controlling for infant size and season of measurement were used to relate these patterns to TI. We found that smaller leg length relative to head circumference, characteristic of head-sparing growth restriction, was predictive of lower TI. This association was significant at all time points but strongest in earlier pregnancy. Each standard deviation increase in leg-head proportion was associated with an increase in TI of similar to 5%. We conclude that growth patterns typical of poor fetal nutrition are associated with poor thymic development. The greater strength of this association in the first trimester is consistent with a period of vulnerability during the early ontogeny of the thymus and suggests that preventative intervention would need to be given in early pregnancy.
|
|
