Effets des stimuli auditifs sur la glande pinéale de la chauve-souris en hibernation

Miline, R.; Devecerski, V; Krstić, Radivoj V.

doi:10.1159/000143341

Cited by 8 publications

(4 citation statements)

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“…Our pre vious research results point to the stimulated activity of the pineal gland during hibernation [10]. Analogous results were obtained in the course of correlative behaviour of the pineal gland and of the supraoptic nucleus un der hypothermal stress [11], as well as on the basis of studies of the seasonal rhythm of this endocrinal gland [12], Observations concerning the higher resistance of the organism in hypothermy than in normal condition to various environmental factors on the one hand [1,3,4,15], and the sensitivity of the pineal gland under the influence of aggressive factors on the other [7,8] have encouraged us to study the behaviour of the epithalamo-epiphyseal complex in the syndrome of adap tation to low temperatures.…”

mentioning

confidence: 69%

Pineal Gland Behaviour as Affected by Cold

Miline¹,

Devecerski²,

Sijacki³

et al. 1970

Horm Res Paediatr

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The pineal gland of rats exposed to the effect of low temperatures shows structural changes of a progressive nature: hypertrophy and hyperplasia of pineocytes, hypertrophy of nuclei and nucleoli;deprivation of followed by saturation by, pineocytes in sudanophilic granulations; intensified activities of nonspecific esterases, acid phossphatases and alkaline phosphatases; polymorphism and hypertrophy of mitochondria, hypertrophy of the Golgi zone, abundance of free ribosomes. On the basis of the results obtained indicating stimulated activity of the pineal gland, this organ is to be considered as integrated in the regulation system of adaptation to cold.

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mentioning

confidence: 69%

Pineal Gland Behaviour as Affected by Cold

Miline¹,

Devecerski²,

Sijacki³

et al. 1970

Horm Res Paediatr

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“…The pineal gland is a thermorcccptor which is cngagcd in thermorcgulatioii during hibernation 2* and during adaptation to cold (hypothcrmal stress). In experiments in bats subjcctcd to auditory stimu!i during hibernation and in rats cxposcd to low temperatures, we showcd that the pineal gland is stimulated by external cold; this organ is to be considered as integrated in the regulatory system of hibernation and of adaptation to cold (Miline, DeveEerski and KrstiC 1969;Miline et ul. 1970).…”

Section: Discussionmentioning

confidence: 74%

The Pineal Organ: An Introduction

Kappers

2008

Ciba Foundation Symposium - The Pineal Gland

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“…In addition, recently, it was found that pinealocytes in restrained, water-immersion mice show similar characteristics [Kachi, 1984a,b]. Miline et al, [1969] reported that in bats subjected to auditory stress during hibernation at 15-17"C, the pineal gland becomes involuted. On the other hand, since volumetric or cytological differences correlated with length of time in captivity were not found in the pineal of Peromyscus Leucopus [Quay, 19563, the effect of captivity can be hopefully neglected at least in this species.…”

Section: Discussionmentioning

confidence: 99%

Seasonal Changes in Glycogen Level and Size of Pinealocytes of the White‐Footed Mouse, Peromyscus leucopus: A Semiquantitative Histochemical Study

Kachi¹,

Quay²

1984

Journal of Pineal Research

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Glycogen level in and size of pinealocytes of the feral, white-footed mouse Peromyscus leucopus, were studied by a semiquantitative histochemical method to determine whether seasonal changes exist in them under natural conditions, what temporal pattern they exhibit, and whether 24-hour changes in these parameters exist in different seasons, as shown in the laboratory dd-mice. Marked seasonal changes were seen in both glycogen levels and nuclear densities (ANOVA p less than 0.005). The size of pinealocytes at 09:00 to 10:00 showed one peak (and nadir) seasonal change, with the smallest size in winter (December and February) and a larger size in warmer seasons, with the maximum value in July. Glycogen level in pinealocytes at 09:00 to 10:00 showed bimodal seasonal changes, with lower levels in fall and spring and higher levels in winter and summer. In fall, a circadian trend in glycogen level in pinealocytes was seen, with a higher level at the end of the light period. In winter, the glycogen levels were very high at 09:00, 13:00, 17:00, and 21:00 examined and showed dampening of time-of-day differences. On the other hand, the size of pinealocytes followed a time-of-day change (P less than 0.005), being largest at 13:00 and smallest at 21:00. Thus, marked changes in quantitative structure and chemical activities, suggesting changes in functional activity, in pinealocytes were noted especially in severe, cold winter.

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Effets des stimuli auditifs sur la glande pinéale de la chauve-souris en hibernation

Cited by 8 publications

References 1 publication

Pineal Gland Behaviour as Affected by Cold

Pineal Gland Behaviour as Affected by Cold

The Pineal Organ: An Introduction

Seasonal Changes in Glycogen Level and Size of Pinealocytes of the White‐Footed Mouse, Peromyscus leucopus: A Semiquantitative Histochemical Study

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