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Digitale Medien

Diet in late pregnancy and glucose-insulin metabolism of the offspring 40 years later (2000)

Shiell, A. W. ; Campbell, D. M. ; Hall, M. H. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

BJOG 107 (2000), S. 0

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ISSN: 1471-0528

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Medizin

Notizen: Objective To determine how diets of women in pregnancy influence the glucose-insulin metabolism of their offspring in adult life.Design A follow up study of men and women born during 1948–1954 whose mothers had taken part in a survey of diet in late pregnancy.Setting Aberdeen, Scotland.Population One hundred and sixty-eight men and women born in the Aberdeen Maternity Hospital.Main outcome measure Plasma glucose and insulin concentrations, fasting and after a standard oral glucose challenge.Results The offspring of women who had high intakes of fat and protein in late pregnancy had a reduced plasma insulin increment between fasting and 30 min with a 7.0% decrease in increment (P= 0.007) per 10 g increase in protein intake and a 4.9% decrease (P= 0.002) per 10 g increase in fat intake. This was independent of the mother's body mass index or weight gain in pregnancy. A low maternal body mass index in early or late pregnancy was associated with a raised fasting plasma insulin concentration with a decrease of 2.4% (P= 0.05) per 1 kg/m2 increase of maternal body mass.Conclusion High intakes of protein and fat during pregnancy may impair development of the fetal pancreatic beta cells and lead to insulin deficiency in the offspring. The offspring of thin mothers tend to be insulin resistant.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1471-0528.2000.tb11088.x

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Digitale Medien

Excitation energy flow at 77 K in the photosynthetic apparatus of overwintering evergreens (2003)

GILMORE, A. M. ; MATSUBARA, S. ; BALL, M. C. ; [weitere]

Oxford, UK : Blackwell Science Ltd

Plant, cell & environment 26 (2003), S. 0

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ISSN: 1365-3040

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Biologie

Notizen: The flow of excitation energy from the antennae to photosynthetic reaction centre complexes at 77 K was studied in leaves of two evergreen species, namely, snow gum (Eucalyptus pauciflora Sieb. ex Spreng.) and a hemiparasitic mistletoe (Amyema miquelii, Lehm. ex Miq.). The leaves that were naturally acclimated to winter conditions of freezing temperatures and high irradiance displayed the recently discovered cold-hard-band or CHB feature of the chlorophyll a fluorescence spectra (Gilmore & Ball, Proc. Nat. Acad. Sci. USA 97:11098–11101, 2000). A streak-camera-spectrograph was used and the double convolution integral method for global analysis was applied to simultaneously acquire and simulate, respectively, the time- and wavelength-dependence of all major chlorophyll a components (Gilmore et al. Phil. Trans. Roy. Soc. B-London 355:1371–1384, 2000). The CHB coincided with changed amplitudes and decreased excited state lifetimes for the main F685 nm and F695 nm emission bands from the photosystem II (PSII) core-inner-antenna. The CHB dissipates energy as heat separate from PSII while also reducing the PSII quantum yield by competing for both photon absorption and antenna excitation. The CHB did not correlate with changes in the decay kinetics of the PSI antenna F740 nm band. The spectral-kinetic features of the altered energy flow were similar in the unrelated evergreen species. These results are consistent with a functional association between the CHB, PSII energy dissipation and protective storage of chlorophyll in overwintering evergreens.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1046/j.1365-3040.2003.01026.x

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A Simplification of the Revised Lorge Readability Formula (1968)

Barker, D. G. ; Stokes, W. W.

Bloomington, Ill. : Periodicals Archive Online (PAO)

Journal of Educational Research. 61:9 (1968:May/June) 398

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ISSN: 0022-0671

Thema: Pädagogik

URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1123-1968-061-09-000003

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Digitale Medien

The DNA sequence and analysis of human chromosome 6 (2003)

Palmer, S. A. ; Sims, S. K. ; Edwards, C. A. ; [weitere]

[s.l.] : Macmillian Magazines Ltd.

Nature 425 (2003), S. 805-811

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Chromosome 6 is a metacentric chromosome that constitutes about 6% of the human genome. The finished sequence comprises 166,880,988 base pairs, representing the largest chromosome sequenced so far. The entire sequence has been subjected to high-quality manual annotation, resulting in the ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/nature02055

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