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1
Content available remote

Animal responses to extreme conditions: a lesson to biomedical research

100%
Caputa M.
Journal of Physiology and Pharmacology. Supplement
|
2006
|
tom 57
|
nr 8
7-15
Various animals must cope with some specific extreme environmental conditions and, as a consequence, they developed extremely efficacious adaptive defence responses. The mechanisms of the specific defences are more clearly visible in some species than in humans. Therefore, animal models of the human defence mechanisms should be selected accordingly. The appropriate, well responding models may be regarded as "biological amplifiers". This review is focussed on examples of effective defence against: (i) parturitional asphyxia, which extends fertility of mammals; (ii) diving asphyxia, which extends access of food in aquatic birds and mammals; (iii) endotoxemia, which provides survival of the fittest in mammals showing top fertility; (iv) deep hypothermia, which enables hibernating mammals to arouse. Each of the defences needs close co-operation of the cardiovascular, respiratory and temperature regulatory systems. Underlined problems regarding a choice of appropriate experimental animal models should stimulate renaissance of comparative physiology.
2

Selective brain cooling a multiple regulatory mechanism

75%
Caputa M.
Acta Neurobiologiae Experimentalis
|
2001
|
tom 61
|
nr 3
3

Biologia termiczna pszczol - zdumiewajaca przemiana od zmiennocieplnosci do stalocieplnosci

63%
Grodzicki P., Caputa M.
Kosmos
|
2003
|
tom 52
|
nr 2-3
271-282
4

Lipid diet reduces delayed, neonatal asphyxia-induced, cognitive deficits in juvenile rats-preliminary study

63%
Bohr L., Caputa M.
Acta Neurobiologiae Experimentalis
|
2001
|
tom 61
|
nr 3
5

Thermoregulatory behaviour, heterothermia and muscle resting potential of bees

63%
Grodzicki P., Caputa M.
Acta Neurobiologiae Experimentalis
|
1999
|
tom 59
|
nr 3
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Warm rearing modifies temperature regulation in rats

63%
Caputa M., Demicka A.
Journal of Physiology and Pharmacology
|
1995
|
tom 46
|
nr 2
7

Dlaczego skora twarzy zdradza nasze emocje? Termoregulacja mozgu

63%
Caputa M.
Kosmos
|
1993
|
tom 42
|
nr 2
347-363
8

Significante of cranial circulation for the brain homeothermia in rabbits. I. The brain-arterial blood temperature gradient

51%
Caputa M., Kadziela W., Narebski J.
Acta Neurobiologiae Experimentalis
|
1976
|
tom 36
|
nr 6
9

Effect of body temperature on plasma pH and iron level in newborn rats exposed to anoxia

51%
Caputa M., Rogalska J., Dokladny K.
Acta Neurobiologiae Experimentalis
|
1999
|
tom 59
|
nr 3
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Effects of temperature and photoperiod on glucose, glycerol and glycogen concentrations in Helix pomatia Linnaeus, 1758 in spring and autumn

51%
Nowakowska A., Caputa M., Rogalska J.
Folia Malacologica
|
2011
|
tom 19
|
nr 3
One of the variables oscillating seasonally in Helix pomatia L., described in our previous paper, was their rudimentary cryoprotection provided by modest increases in haemolymph glucose and glycerol concentrations in autumn and early spring, respectively. Because factors governing cryoprotective responses are unknown, we decided to investigate the effects of spring and autumn acclimation of H. pomatia to different thermal and photoperiod conditions on the changes in haemolymph concentrations of glucose and glycerol and on the glycogen level in selected organs. Neither acclimation to short-day photoperiod nor low ambient temperature evoked increase in glucose and glycerol concentration in spring and autumn. Both acclimation variants decreased hepatopancreatic glycogen level. The rudimentary freeze-tolerance in H. pomatia seems to be a combined effect of cold and short-day photoperiod and might also be affected by their nutritional and reproductive status. The effect of exposure to frost-bite is also likely to be involved.
11
Content available remote

Seasonal changes in cryoprotectants concentrations in Helix pomatia snails

51%
Nowakowska A., Caputa M., Rogalska J.
Journal of Physiology and Pharmacology. Supplement
|
2006
|
tom 57
|
nr 8
93-105
Terrestrial snails are often exposed to freezing. Therefore, we investigated seasonal shifts in hemolymph concentrations of cryoprotectants such as glycerol and glucose. We also investigated whether summer acclimation to cold and short-day photoperiod induced synthesis of cryoprotectants in Helix pomatia snails. Concentrations of the both cryoprotectants were elevated in winter and reduced in summer. These changes, however, were not correlated with shifts in liver glycogen content. Summer acclimation to cold (5°C) and short-day photoperiod evoked a selective increase in glycerol concentration. In conclusion, glycerol may play a role in adaptation of the snails to winter cold and glucose is rather unlikely to provide the cryoprotection.
12
Content available remote

Stress-induced behaviour in adult and old rats: effects of neonatal asphyxia, body temperature and chelation of iron

51%
Rogalska J., Caputa M., Wentowska K., Nowakowska A.
Journal of Physiology and Pharmacology. Supplement
|
2006
|
tom 57
|
nr 8
17-34
Perinatal asphyxia in mammals leads to iron accumulation in the brain, which results in delayed neurobehavioural disturbances, including impaired learning and abnormal alertness over their entire life span. The aim of this investigation was to verify our hypothesis that newborn rats, showing reduced normal body temperature, are protected against neurotoxicity of the asphyxia up to senescence. Alertness was studied in adult and old male Wistar rats after exposure to critical neonatal anoxia: (i) at physiological neonatal body temperature of 33°C, (ii) at body temperature elevated to 37°C, or (iii) at body temperature elevated to 39°C (the thermal conditions remained unchanged both during anoxia and for 2 h postanoxia). To elucidate the effect of iron-dependent postanoxic oxidative damage to the brain, half of the group (iii) was injected with deferoxamine, a chelator of iron. Postanoxic behavioural disturbances were recorded in open-field, elevated plus-maze, and sudden silence tests when the rats reached the age of 12 and 24 months. Open-field stress-induced motor activity was reduced in rats subjected to neonatal anoxia under hyperthermic conditions. In contrast, these rats were hyperactive in the plus-maze test. Both the plus-maze and sudden silence tests show reduced alertness of these rats to external stimuli signalling potential dangers. The behavioural disturbances were prevented by body temperature of 33°C and by administration of deferoxamine.
13

Behavioral and physiological mechanisms of defense against hypoxia in cockroaches

51%
Grajpel B., Grodzicki P., Caputa M.
Acta Neurobiologiae Experimentalis
|
2001
|
tom 61
|
nr 3
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Antioxidation defence in two snail species: Helix aspersa and Helix pomatia

51%
Nowakowska A., Rogalska J., Caputa M.
Folia Malacologica
|
2010
|
tom 18
|
nr 3
15

Effects of neonatal body temperature and chelationof iron on delayed postanoxic disturbances in open-field behaviour inrats

51%
Rogalska J., Caputa M., Wentowska K., Nowakowska A.
Acta Neurobiologiae Experimentalis
|
2001
|
tom 61
|
nr 3
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Changes in anti-oxidation defence of the Roman snail during enforced spring aestivation

51%
Nowakowska A., Caputa M., Rogalska J.
Folia Malacologica
|
2012
|
tom 20
|
nr 1
17

Reduced body temperature as a defence against anoxic brain damage in newborn rats

51%
Rogalska J., Caputa M., Dokladny K.
Acta Neurobiologiae Experimentalis
|
1999
|
tom 59
|
nr 3
18
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Potential role of HSP proteins in snails of the genus Helix

51%
Nowakowska A., Rogalska J., Caputa M.
Folia Malacologica
|
2016
|
tom 24
|
nr 1
19

Organ profiles of the antioxidant defence system and accumulation of metals in Helix aspersa snails

51%
Nowakowska A., Laciak T., Caputa M.
Polish Journal of Environmental Studies
|
2012
|
tom 21
|
nr 5
This paper studied the association between metals accumulation in selected tissues and the shell and antioxidant defence system in Helix aspersa snails. Accumulation of Zn, Fe, Pb, Cd, and Mg was organ-specific and Was the highest in the hepatopancreas. Hepatopancreatic catalase and glutathione peroxidase activities were the highest, whereas the highest glutathione reductase activity was recorded in the foot. Concentration of GSH was inversely proportional to hepatopancreatic accumulation of the metals. The metals accumulation did not affect hepatopancreatic lipids peroxidation, which means that the hepatopancreatic antioxidant defence was quite capable of eliminating the overproduction of reactive oxygen species evoked by metals.
20

Seasonal changes in thermal behavior of the Helix pomatia snail

51%
Nowakowska A., Caputa M., Rogalska J., Wentowska K.
Acta Neurobiologiae Experimentalis
|
2001
|
tom 61
|
nr 3
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