Comparison of circadian oscillation of melatonin release in pineal cells of house sparrow, pigeon and Japanese quail, using cell perfusion systems

Murakami, Noboru; Nakamura, Hisae; Nishi, Ryuichiro; Marumoto, Nobuyuki; Nasu, Tetsuo

doi:10.1016/0006-8993(94)90699-8

Cited by 55 publications

(38 citation statements)

References 23 publications

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“…The obtained results show that 1) the pineal organs of one-day-old and adult ducks generate a circadian rhythm of MLT secretion during incubation in a continuous darkness and in a continuous illumination, 2) the information about changes in the phase of a light-dark cycle is acquired and stored by the circadian oscillator of duck pinealocytes. The circadian rhythm of MLT secretion from the investigated explants persists in the absence of a light-dark cycle for at least 2-3 days, therefore it could be concluded that the stability of the pineal circadian oscillator activity in the duck is similar to that in the chicken, turkey and house sparrow and higher than in the Japanese quail (Csernus et al 1998, Murakami et al 1994, Prusik et al 2005.…”

Section: Discussionmentioning

confidence: 86%

“…The mechanisms regulating MLT synthesis in the avian pineal gland have been studied in a few species, mainly in the chicken, Japanese quail and turkey (Murakami et al 1994, Prusik 2005, Prusik and Lewczuk 2008b, Piesiewicz et al 2012, 2015. The pineal glands or isolated pinealocytes of these species cultured under a light-dark cycle secrete MLT in a diurnal rhythm, more or less adjusted to the changes in photoperiod, and incubated in a continuous darkness or a continuous light generate a circadian rhythm of MLT secretion (Okano and Fukada 2003, Csernus et al 2005, Zeman and Herichová 2011.…”

Section: Introductionmentioning

confidence: 99%

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Regulation of melatonin secretion in the pineal organ of the domestic duck – an in vitro study

Prusik¹,

Lewczuk²,

Ziółkowska³

et al. 2015

Polish Journal of Veterinary Sciences

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The aim of study was to determine the mechanisms regulating melatonin secretion in the pineal organs of 1-day-old and 9-month-old domestic ducks. The pineals were cultured in a superfusion system under different light conditions. Additionally, some explants were treated with norepinephrine.The pineal glands of 1-day-old ducks released melatonin in a well-entrained, regular rhythm during incubation under a 12 hrs light : 12 hrs dark cycle and adjusted their secretory activity to a reversed 12 hrs dark : 12 hrs light cycle within 2 days. In contrast, the diurnal changes in melatonin secretion from the pineals of 9-month-old ducks were largely irregular and the adaptation to a reversed cycle lasted 3 days. The pineal organs of nestling and adult ducks incubated in a continuous light or darkness secreted melatonin in a circadian rhythm. The treatment with norepinephrine during photophases of a light-dark cycle resulted in: 1) a precise adjustment of melatonin secretion rhythm to the presence of this catecholamine in the culture medium, 2) a very high amplitude of the rhythm, 3) a rapid adaptation of the pineal secretory activity to a reversed light-dark cycle. The effects of norepinephrine were similar in the pineal organs of nestlings and adults.In conclusion, melatonin secretion in the duck pineal organ is controlled by three main mechanisms: the direct photoreception, the endogenous generator and the noradrenergic transmission. The efficiency of intra-pineal, photosensitivity-based regulatory mechanism is markedly lower in adult than in nestling individuals.

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Regulation of melatonin secretion in the pineal organ of the domestic duck – an in vitro study

Prusik¹,

Lewczuk²,

Ziółkowska³

et al. 2015

Polish Journal of Veterinary Sciences

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“…Accordingly, if this &dquo;eye-SCN&dquo; axis is intact, it may be capable of resisting any disruption caused by pinealectomy; that is, the pineal may be normally contributing to circadian organization but its role cannot be demonstrated by pinealectomy. In addition, dispersed pineal cell cultures, or pineal organ cultures, of house sparrows, pigeons, or chickens show circadian rhythms of melatonin release in DD for at least a few cycles (i.e., they are at least semiautonomous), but no circadian oscillations are seen in cultured pineal cells of Japanese quail in DD (Takahashi et al, 1989;Murakami et al, 1994). This implies that the pineal of the Japanese quail lacks autonomous rhythmicity and depends entirely on either a daily photic input or a daily neural input to continue oscillating.…”

Section: Discussionmentioning

confidence: 98%

The Circadian Rhythm of Thermoregulation in Japanese Quail: III. Effects of Melatonin Administration

Underwood

Edmonds

1995

J Biol Rhythms

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Recent studies indicate that the circadian pacemakers in the eyes of Japanese quail are coupled to the rest of the circadian system by both neural and hormonal outputs. The effects of exogenous melatonin administration on circadian body temperature and activity rhythms of quail were tested to determine whether melatonin could be the hormonal link involved. Continuous melatonin administration caused arrhythmicity or period changes in the body temperature and activity rhythms of pinealectomized and sham-pinealectomized birds held in constant darkness and also significantly decreased the amplitude of the body temperature rhythms of normal birds held on light:dark 12:12. Further, melatonin entrained the body temperature and activity rhythms of normal birds when administered daily via the drinking water. The results show that melatonin can affect the circadian system of quail and support the hypothesis that melatonin is importantly involved in linking pacemakers in the eyes to the rest of the circadian system.

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“…In passerines the dominant circadian oscillator is the pineal gland; removing it surgically renders the normal circadian locomotor behavior arrhythmic, while transplanting a donor pineal into the anterior chamber of the eye restores rhythmicity with the phase of the donor bird (11). In vitro, the pineal produces melatonin with a circadian rhythm and is photosensitive (12). Exogenous melatonin administered rhythmically restores locomotor rhythmicity to pinealectomized birds (13,14).…”

mentioning

confidence: 99%

Evolution of circadian organization in vertebrates

Menaker¹,

Moreira²,

Tosini³

1997

Braz J Med Biol Res

145

104

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Circadian organization means the way in which the entire circadian system above the cellular level is put together physically and the principles and rules that determine the interactions among its component parts which produce overt rhythms of physiology and behavior. Understanding this organization and its evolution is of practical importance as well as of basic interest. The first major problem that we face is the difficulty of making sense of the apparently great diversity that we observe in circadian organization of diverse vertebrates. Some of this diversity falls neatly into place along phylogenetic lines leading to firm generalizations: i) in all vertebrates there is a "circadian axis" consisting of the retinas, the pineal gland and the suprachiasmatic nucleus (SCN), ii) in many non-mammalian vertebrates of all classes (but not in any mammals) the pineal gland is both a photoreceptor and a circadian oscillator, and iii) in all non-mammalian vertebrates (but not in any mammals) there are extraretinal (and extrapineal) circadian photoreceptors. An interesting explanation of some of these facts, especially the differences between mammals and other vertebrates, can be constructed on the assumption that early in their evolution mammals passed through a "nocturnal bottleneck". On the other hand, a good deal of the diversity among the circadian systems of vertebrates does not fall neatly into place along phylogenetic lines. In the present review we will consider how we might better understand such "phylogenetically incoherent" diversity and what sorts of new information may help to further our understanding of the evolution of circadian organization in vertebrates. Key wordsOrganisms, from unicellulars to vertebrates, are structured in time as well as in space. Many, if not most, biochemical, physiological and behavioral parameters exhibited by organisms show daily fluctuations and most of these daily rhythms persist in constant conditions, thus demonstrating that they are driven by endogenous oscillators. The rhythms that persist in constant conditions with periods close to 24 h are called circadian rhythms.By circadian organization we mean the way in which the entire circadian system above the cellular level is put together physically, and the principles and rules that determine the interactions among its component parts. Circadian organization extends both broadly and deeply into the physiology and

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Comparison of circadian oscillation of melatonin release in pineal cells of house sparrow, pigeon and Japanese quail, using cell perfusion systems

Cited by 55 publications

References 23 publications

Regulation of melatonin secretion in the pineal organ of the domestic duck – an in vitro study

Regulation of melatonin secretion in the pineal organ of the domestic duck – an in vitro study

The Circadian Rhythm of Thermoregulation in Japanese Quail: III. Effects of Melatonin Administration

Evolution of circadian organization in vertebrates

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