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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Influence of selected dietary components on the functioning of the human nervous system

100%
Wendolowicz A., Stefanska E., Ostrowska L.
Roczniki Państwowego Zakładu Higieny
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2018
|
tom 69
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nr 1
The diet is directly connected not only with the physical status but also with the functioning of the brain and the mental status. The potentially beneficial nutrients with a protective effect on the nervous system function include amino acids (tryptophan, phenylalanine, tyrosine, taurine), glucose and vitamins C, E, D and beta-carotene, B group vitamins (vitamin B12, vitamin B6, vitamin B4, vitamin B1) and minerals (selenium, zinc, magnesium, sodium, iron, copper, manganese, iodine). The presence of antioxidants in the diet protects against oxidative damage to nervous system cells. Biochemical data indicate that polyunsaturated fatty acids such as arachidonic acid (AA), docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA) and gamma-linolenic acid (GLA) as structural components of the nervous system play a key role in its function. The nutrition of the entire body also influences the production of neurotransmitters in the brain. A diet without an appropriate supply of protein, mineral nutrients or vitamins may result in a failure to form appropriately balanced numbers of neurotransmitters, which, as a result, may lead to neurotransmission dysfunction. This is the reason why proper nutrition is based on vegetables, fruits, whole-grain cereal products supplemented with products providing full-value protein (dairy products, fish, lean meat) and high-quality fat products (vegetable oils, fish fats).
2

The effect of some dietary components on body weight and fat deposition in pregnant women in combination with exercise during pregnancy and postpartum period

84%
Denda O. S., Denda M. S., Dalkiranis A. X., Lyssa B. S., Argyrios M.
Studies in Physical Culture and Tourism
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2005
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tom 12
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nr 1
3

Cranial ontogeny of Lutreolina crassicaudata (Didelphidae): a comparison with Didelphis albiventris

84%
Flores D. A., Giannini N. P., Abdala F.
Acta Theriologica
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2003
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tom 48
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nr 1
Metatherians experience the greatest developmental changes during extrauterine life. Following previous studies on Didelphis albiventris Lund, 1840, we examined the postweaning cranial allometry of size of the Neotropical marsupial Lutreolina cras- sicaudata (Desmerest, 1804). Our aim was to compare growth patterns of both species to identify traits particular to each species and traits common to both species. This may contribute toward identifying a common developmental plan for didelphids. We mea­sured 15 cranial variables in 32-43 specimens from just-weaned young to old adult. Total length of the skull was the estimator of overall size in least squares and reduced major axis regressions. The skull of Lutreolina crassicaudata grows at a rate slower than the overall change in size in its neurocranial components, palate, and postcanine rows, and it grows relatively faster in the rest of the splanchnocranium. This pattern closely resembles that of Didelphis albiventris, from which it differs mainly in the allometry of the muzzle. In both species, allometry explains most postweaning changes of the trophic apparatus on functional grounds, in relation to interspecific differences in diet. We hypothesize that most local allometric departures from a generalized didelphid plan would relate to main dietary trends.
4

Fatty acid concentration in the meat of young female nutria (Myocastor coypus Mol.)

67%
Glogowski R., Czauderna M., Rozbicka-Wieczorek A., Krajewska K.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
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2010
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tom 06
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nr 3
5

Assessment of the antioxidant properties of corn foodstuffs

67%
del Castillo M. D., Ullate M., Rodriguez-Valenciano M., Blanch G. P.
Polish Journal of Food and Nutrition Sciences
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2011
|
tom 61
|
nr Suppl.1
6

Nutritional efficiency of genetically-modified insect resistant corn [MON 810] and glyphosate-tolerant soybean meal [Roundup Ready] for broilers

67%
Swiatkiewicz S., Swiatkiewicz M., Koreleski J., Kwiatek K.
Bulletin of the Veterinary Institute in Puławy
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2010
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tom 54
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nr 1
43-48
The aim of this study was to evaluate the effect of genetically-modified (GM) insect-resistant corn (MON 810) and glyphosate-tolerant GM soybean meal (Roundup Ready, MON 40-30-2), used as the main dietary components for broilers, on the performance parameters, results of slaughter analysis, and the chemical composition of the breast muscles. In a 42-d floor pen experiment, Ross 308 broilers were fed corn-soybean meal diets. In the experiment, a randomised complete block design was used with 4 dietary treatments. Each treatment was divided into 4 replicates (pens) of 40 birds. All the experimental diets met the requirements of broilers; they were all isonitrogenous and isoenergetic, and contained non-modified corn and soybean meal (group I), non-modified corn and GM soybean (group II), GM corn and non-modified soybean meal (group III), or GM corn and GM soybean meal (group IV), respectively. The nutrient composition of Bt corn and its non-modified isogenic counterpart (parental line) revealed no major differences. The final live weight, average daily weight gain, feed intake, feed conversion (feed:gain ratio), and mortality rate did not differ statistically across the dietary treatments. No statistical differences (P>0.05) were also found in the results of slaughter analysis (carcass yield, meat yield, abdominal fat pad, and relative weight of the liver, gizzard, and spleen) and chemical composition of the breast muscles. It was concluded that insect-resistant GM corn (MON 810) and soybean meal produced from glyphosate-tolerant GM soybean (Roundup Ready) are nutritionally equivalent to conventional feeds and can be used as components of broiler diets with no adverse effect on performance indices.
7

Quantitative analysis of the level of p53 and p21 WAF1 mRNA in human colon cancer HT-29 cells treated with inositol hexaphosphate

67%
Weglarz L., Molin I., Orchel A., Parfiniewicz B., Dzierzewicz Z.
Acta Biochimica Polonica
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2006
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tom 53
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nr 2
The aim of this study was to analyze the molecular mechanism of inositol hexaphosphate (InsP6) action through which it may inhibit proliferation of colon cancer cells and cell cycle progression. A kinetic study of p53 and p21WAF1 mRNA increase was performed on human colon cancer HT-29 cells after treatment with 1, 5 and 10 mM InsP6 for 6, 12, 24 and 48 h. Real-time-QPCR based on TaqMan methodology was applied to analyze quantitatively the transcript levels of these genes. The transcription of β-actin and GAPDH genes was assessed in parallel to select the control gene with least variability. The 2-ΔΔCt method was used to analyze the relative changes in gene transcription. InsP6 stimulated p53 and p21WAF1 expression at the mRNA level, with the highest increase in p21WAF1 mRNA occurring at 24 h, i.e., following the highest increase in p53 mRNA observed at 12 h. Based on these studies it may be concluded that the ability of InsP6 to arrest the cell cycle may be mediated by the transcriptional up-regulation of the p53-responsive p21WAF1 gene.
8

Niestabilnosc mikrosatelitarna jako marker w badaniach wplywu skladnikow diety na powstawanie nowotworow

59%
Bobrowska B., Tokarz A., Kaminska M.
Bromatologia i Chemia Toksykologiczna
|
2010
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tom 43
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nr 3
323-329
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The ground sloth Megatherium americanum: skull shape, bite forces, and diet

59%
Bargo M. S.
Acta Palaeontologica Polonica
|
2001
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tom 46
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nr 2
Megatherium americanum (late Pleistocene of South America) has traditionally been regarded a herbivore, but its dietary habits have not been considered in terms of a morphofunctional analysis. This study describes and analyses the morphology of the masticatory apparatus in order to interpret the jaw mechanics of M. americanum, and thus to infer its diet and behaviour. The results are compared with those for the mylodontid Glossotherium robustum and the extant sloth Bradypus variegatus. The areas of origin and insertion of the masticatory musculature were reconstructed, and the moment arms generated by this musculature were estimated so that the mechanics of the feeding apparatus might be described. These analyses indicate that M. americanum was well adapted for strong and mainly vertical biting. The teeth are extremely hypsodont and bilophodont, and the sagittal section of each loph is triangular with a sharp edge. This suggests that the teeth were used mainly for cutting, rather than grinding, and that hard and fibrous food was not the main dietary component. The diet of M. americanum merits more rigorous analysis, but the evidence provided here indicates that it probably had a browsing diet in open habitats, but also could have fed on moderate to soft tough food.
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

What is the diet of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a non-indigenous species in the Gulf of Gdańsk (Southern Baltic Sea)?

51%
Janas U., Baranska A.
Oceanologia
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2008
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tom 50
|
nr 2
221-237
Palaemon elegans, a new component of the Gulf of Gdańsk macrozoobenthos, colonised the southern Baltic coastal zone in the late 20th and early 21st century. Analysis of the stomach contents of P. elegans revealed 16 plant and animal taxa that these prawns had fed on. The principal dietary component was detritus, with a mean frequency of occurrence in stomachs of > 80%. The most frequently occurring plant components in the diet were algae from the genus Cladophora and the family Ectocarpaceae, while the most significant animal components were Harpacticoida, Chironomidae, Ostracoda and Gammarus spp. The results of the study show that the dietary composition of P. elegans differed significantly between stations and months. The foraging area consisted of two distinctive regions – the Inner Puck Bay, and the Outer Puck Bay together with the Dead Vistula River; two of the stations – Gdynia and Sopot – were distinct from all the others. However, no obvious seasonality in the food composition could be demonstrated.
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