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Related Experiment Videos

Rest-activity patterns in children with hypopituitarism.

Scott A Rivkees1

  • 1Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA. Scott.Rivkees@yale.edu

Pediatrics
|June 5, 2003
PubMed
Summary

Children with hypopituitarism can experience disrupted sleep-activity patterns. Those with hypothalamic tumors or septo-optic dysplasia (SOD) are particularly at risk for circadian rhythm dysfunction.

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Area of Science:

  • Neuroscience
  • Endocrinology
  • Chronobiology

Background:

  • The suprachiasmatic nuclei govern circadian rhythms, and lesions here disrupt these patterns in animals.
  • The impact of hypothalamic-pituitary region lesions on human circadian rhythms is not well understood.
  • Hypopituitarism in children can result from various conditions affecting this region.

Purpose of the Study:

  • To investigate rest-activity patterns in children diagnosed with hypopituitarism.
  • To identify potential links between specific conditions causing hypopituitarism and circadian rhythm abnormalities.

Main Methods:

  • Evaluated 20 children (ages 2-18) with panhypopituitarism.
  • Included diagnoses such as septo-optic dysplasia (SOD), congenital hypopituitarism, brain tumors, head trauma, and irradiation.
  • Utilized Actiwatches for 3-4 weeks to objectively measure gross motor activity and assess rest-activity patterns.

Main Results:

  • 17 out of 20 children exhibited normal rest-activity patterns with a mean period of 24.01 hours.
  • Three children displayed abnormal patterns: 2 with SOD and 1 with a hypothalamic germinoma lacked consolidated nighttime rest.
  • One patient with an optic glioma presented with a non-entrained circadian phase.

Conclusions:

  • A subset of children with hypopituitarism demonstrates abnormal daily rest-activity patterns.
  • Anterior hypothalamic tumors and septo-optic dysplasia (SOD) are identified as risk factors for circadian system dysfunction in these children.

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