Wyniki wyszukiwania

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Nutritional status and puberty in girls

100%

Kulik-Rechberger B., Furmaga-Jablonska W., Szponar E., Polkowska G., Rymgayllo-Katska M., Kozlowska M.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr Suppl.2, Part 1

This study aims to find relationships between nutritional status, leptin and puberty. Methods. The research covered 66 healthy girls aged 9.8 ± 0.6 years, in prepubertal period. Body height, weight, arm circumference and skinfolds were measured, and serum leptin concentration was estimated. The evaluation of the pubertal stage and anthropometrical measurements was carried out again in a year's period. Results. During the observation, 32 girls reached the time of puberty (group I), while the other 34, at the same age, were still at prepubertal stage (group II). The girls in group II were shorter, lighter, had lower arm circumference, thinner skin fold on abdomen (p<0.02) and lower serum leptin concentration (p<0.003). Highly positive correlations between BMI, skin folds thickness and leptin concentration were proved. Conclusion. The results indicate relationships between the fat tissue amount, blood leptin concentration and puberty in girls.

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Leptin concentration in blood and its hypothalamic binding are poorly related with amount of fat and growth rate in pigs

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Mackowiak P., Nowak K. W., Kaczmarek P., Szydlowski M., Kamyczek M., Eckert R., Rozycki M., Switonski M.

Journal of Animal and Feed Sciences

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2004

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tom 13

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nr 1

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Quality and number of cumulus-oocyte complexes (COC) and concentrations of leptin and ghrelin in blood and follicular fluid depending on the body condition of cows

80%

Nowak T., Jaskowski J., Szczepankiewicz D., Olechnowicz J.

Medycyna Weterynaryjna

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2011

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tom 67

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nr 02

The aim of our study was to investigate the effect of body condition on the number of ovarian follicles, the number and quality of COC-complexes and/or concentration of leptin (LEP), total and active ghrelin (TGHR and AGHR) in blood plasma and follicular fluids. Before slaughter all cows were divided into five classes according to their body condition scores (BCS). Body condition had no significant influence on the number of follicles and aspirated oocytes. The mean number of oocytes of a very good quality (Grade 1 and Grade 2) was 0.79 and 1.14 in cows with BCS 2.50 and 2.51-3.0, and was lower than 2.69, 2.66 and 2.0, respectively, aspirated from follicles in cows from group 3.01-3.5, 3.51-4.0 and > 4.0. Body condition influenced the number of COCs of a very good quality (Grade 1, P < 0.05). There was no relation between body condition and the number of oocytes grades 2 and 4. We found an interrelation between blood leptin concentration and its concentration in the follicular fluid (P < 0.01). No significant relationship exists between the BCS of cows and concentrations of leptin and active ghrelin in blood plasma and the follicular fluid.

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Leptin concentrations in patients with polycystic ovary syndrome before and after met-formin treatment depending on insulin resistance, body mass index and androgen con-centrations - introductory report

80%

Marciniak A., Nawrocka-Rutkowska J., Brodowska A., Sienkiewicz R., Szydlowska I., Starczewski A.

Folia Histochemica et Cytobiologica

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2009

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tom 47

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nr 2

323-328

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Effect of dietary fat type on plasma lipid profile and leptin concentration in rats fed on high-sucrose diets

80%

Krawczynska A., Okreglicka K., Olczak E., Gromadzka-Ostrowska J.

Journal of Pre-Clinical and Clinical Research

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2010

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tom 04

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