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Dr Elzbieta Krol

Dr Elzbieta Krol
Dr Elzbieta Krol
Dr Elzbieta Krol

MSc (Jagiellonian University, Poland); PhD (Jagiellonian University, Poland)

Lecturer

About
Email Address
e.krol@abdn.ac.uk
Telephone Number
+44 (0)1224 272883
School/Department
School of Biological Sciences
Research

Research Overview

My research interests focus on whole animal energetics and physiology. This framework provides the common theme that links my interests in the role of energy use during both reproduction and the development of obesity.

Current Research

My doctoral work on the energetics of hedgehogs (Jagiellonian University, Poland) and postdoctoral work on reproduction in laboratory mice (University of Aberdeen, Scotland) and deer mice (University of California, Riverside, USA) have resulted in a novel hypothesis that the limits to sustained energy intake at peak lactation are imposed by the capacity of the animal to dissipate body heat. This hypothesis is currently under further investigation.

My obesity related work focuses on the effects of photoperiod on body mass, food intake, body composition, energy balance and hypothalamic gene expression in the field vole, which provides a new animal model for the investigation of seasonal adiposity at both organism and molecular levels. The major finding of this project is that the photoperiod-induced increase in body mass is associated with the up-regulation of the suppressor of cytokine signalling (SOCS3). This appears to act as a desensitisation mechanism that allows animals to ignore elevated leptin levels generated by increased adiposity, leading to an accumulation of body fat without counter-regulatory mechanisms.

Publications

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  • Limits to sustained energy intake. XVI. Body temperature and physical activity of female mice during pregnancy

    Gamo, Y., Bernard, A., Mitchell, S. E., Hambly, C., Al Jothery, A., Vaanholt, L. M., Król, E., Speakman, J. R.
    Journal of Experimental Biology, vol. 216, no. 12, pp. 2328-2338
    Contributions to Journals: Articles

  • Limits to sustained energy intake. XV. Effects of wheel running on the energy budget during lactation

    Zhao, Z. J., Krol, E., Moille, S., Gamo, Y., Speakman, J. R.
    Journal of Experimental Biology, vol. 216, no. 12, pp. 2316-2327
    Contributions to Journals: Articles

  • Limits to sustained energy intake. XVII. Lactation performance in MF1 mice is not programmed by fetal number during pregnancy

    Duah, O. A., Monney, K. A., Hambly, C., Krol, E., Speakman, J. R.
    Journal of Experimental Biology, vol. 216, no. 12, pp. 2339-2348
    Contributions to Journals: Articles

  • Strong pituitary and hypothalamic responses to photoperiod but not to 6-methoxy-2-benzoxazolinone in female common voles (Microtus arvalis)

    Krol, E., Douglas, A., Dardente, H., Birnie, M., van der Vinnie, V., Eijer, W., Gerkema, M., Hazlerigg, D., Hut, R.
    General and Comparative Endocrinology, vol. 179, no. 2, pp. 289-295
    Contributions to Journals: Articles

  • Seasonal leptin resistance is associated with impaired signalling via JAK2-STAT3 but not ERK, possibly mediated by reduced hypothalamic GRB2 protein

    Tups, A., Stöhr, S., Helwig, M., Barrett, P., Krol, E., Schachtner, J., Mercer, J. G., Klingenspor, M.
    Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology, vol. 182, no. 4, pp. 553-567
    Contributions to Journals: Articles

  • Negative correlation between milk production and brown adipose tissue gene expression in lactating mice

    Król, E., Martin, S., Huhtaniemi, I., Douglas, A., Speakman, J.
    Journal of Experimental Biology, vol. 214, no. 24, pp. 4160-4170
    Contributions to Journals: Articles

  • Limits to sustained energy intake. XIII. Recent progress and future perspectives

    Speakman, J. R., Król, E.
    Journal of Experimental Biology, vol. 214, no. 2, pp. 230-241
    Contributions to Journals: Articles

  • The heat dissipation limit theory and evolution of life histories in endotherms-time to dispose of the disposable soma theory?

    Speakman, J. R., Król, E.
    Integrative and Comparative Biology, vol. 50, no. 5, pp. 793-807
    Contributions to Journals: Articles

  • Shaved mice have improved performance during lactation

    Krol, E., Speakman, J. R.
    Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 153, no. 2, pp. S149
    Contributions to Journals: Articles

  • The contribution of animal models to the study of obesity

    Speakman, J. R., Hambly, C., Mitchell, S. E., Król, E.
    Laboratory Animals, vol. 42, no. 4, pp. 413-432
    Contributions to Journals: Articles

  • Limits to sustained energy intake. X.: Effects of fur removal on reproductive performance in laboratory mice

    Krol, E., Murphy, M., Speakman, J. R.
    Journal of Experimental Biology, vol. 210, pp. 4233-4243
    Contributions to Journals: Articles

  • Animal models of obesity

    Speakman, J., Hambly, C., Mitchell, S., Król, E.
    Obesity Reviews, vol. 8, no. Suppl 1, pp. 55-61
    Contributions to Journals: Articles

  • Regulation of body mass and adiposity in the field vole, Microtus agrestis: a model of leptin resistance

    Krol, E., Speakman, J. R.
    Journal of Endocrinology, vol. 192, no. 2, pp. 271-278
    Contributions to Journals: Literature Reviews

  • Limits to sustained energy intake IX: a review of hypotheses

    Speakman, J. R., Krol, E.
    Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology, vol. 175, pp. 375-394
    Contributions to Journals: Literature Reviews

  • Photoperiodic effects on body mass, energy balance and hypothalamic gene expression in the bank vole

    Peacock, W. L., Krol, E., Moar, K. M., McLaren, J. S., Mercer, J. G., Speakman, J. R.
    Journal of Experimental Biology, vol. 207, pp. 165-177
    Contributions to Journals: Articles

  • The functional significance of individual variation in basal metabolic rate

    Speakman, J. R., Krol, E., Johnson, M. S.
    Physiological and Biochemical Zoology, vol. 77, pp. 900-915
    Contributions to Journals: Articles

  • Limits to sustained energy intake VI. Energetics of lactation in laboratory mice at thermoneutrality

    Krol, E. B., Speakman, J. R.
    Journal of Experimental Biology, vol. 206, no. 23, pp. 4255-4266
    Contributions to Journals: Articles

  • Limits to sustained energy intake VII: Milk energy output in laboratory mice at thermoneutralith

    Krol, E. B., Speakman, J. R.
    Journal of Experimental Biology, vol. 206, no. 23, pp. 4267-4281
    Contributions to Journals: Articles

  • Limits to sustained energy intake VIII: Resting metabolic rate and organ morphology of laboratory mice lactating at thermoneutralith

    Krol, E. B., Speakman, J. R.
    Journal of Experimental Biology, vol. 206, no. 23, pp. 4283-4291
    Contributions to Journals: Articles

  • Energetics of lactation in laboratory mice at thermoneutrality

    Krol, E., Speakman, J. R.
    The FASEB Journal, vol. 15, no. 4
    Contributions to Journals: Articles

  • Limits to sustained energy intake during lactation in the mouse Mus musculus

    Johnson, L. M., Thomson, S., Krol, E., Speakman, J. R.
    The FASEB Journal, vol. 15, no. 4
    Contributions to Journals: Articles

  • Effects of altitude and temperature on organ phenotypic plasticity along an altitudinal gradient

    Hammond, K. A., Szewczak, J., Krol, E.
    Journal of Experimental Biology, vol. 204, pp. 1991-2000
    Contributions to Journals: Articles

  • Living fast and dying old.

    Speakman, J. R., Snart, S., Selman, C., McLaren, J., Redman, P., Krol, E., Jackson, D., Johnson, M. S.
    The FASEB Journal, vol. 14, no. 4, pp. A757
    Contributions to Journals: Articles

  • Preparation of hydrogen from water by reduction with lithium aluminium hydride for the analysis of delta H-2 by isotope ratio mass spectrometry

    Ward, S., Scantlebury, M., Krol, E., Thomson, P. J., Sparling, C., Speakman, J. R.
    Rapid Communications in Mass Spectrometry, vol. 14, pp. 450-453
    Contributions to Journals: Articles

  • Isotope dilution spaces of mice injected simultaneously with deuterium, tritium and oxygen-18

    Krol, E., Speakman, J. R.
    Journal of Experimental Biology, vol. 202, pp. 2839-2849
    Contributions to Journals: Articles
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