Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Pigmentation and temporal effects on trace elements in hair.

S Aufreiter1, R G Hancock

  • 1SLOWPOKE Reactor Facility, University of Toronto, Canada.

Biological Trace Element Research
|July 1, 1990
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tissue selenium accretion in premature and full-term human infants and children.

Biological trace element research·2013
Same author

Neutron activation analysis of bulk and selected trace elements in bones using a low flux SLOWPOKE reactor.

Biological trace element research·2013
Same author

Geochemical evidence of pollutants from coalfired generating stations in late Pleistocene palaeosols in the Dalijia Shan, northwestern China.

Environmental geochemistry and health·2013
Same author

Analysis of a complex vertical copulatory-courtship display in the yellow fever vector Sabethes chloropterus.

Medical and veterinary entomology·2005
Same author

Mineralogical and chemical interactions of soils eaten by chimpanzees of the Mahale Mountains and Gombe Stream National Parks, Tanzania.

Journal of chemical ecology·2004
Same author

Exogenous juvenile hormone and methoprene, but not male accessory gland substances or ovariectomy, affect the blood/nectar choice of female Culex nigripalpus mosquitoes.

Medical and veterinary entomology·2000

Trace element concentrations in white and pigmented hair vary over time. This study examined elemental variations in human hair, providing insights into hair pigmentation and aging.

Area of Science:

  • Biogeochemistry
  • Human Biology
  • Analytical Chemistry

Background:

  • Hair composition reflects long-term exposure to environmental elements.
  • Changes in hair pigmentation, such as graying, may correlate with altered elemental uptake or retention.

Purpose of the Study:

  • To investigate trace element variations in human hair.
  • To compare elemental concentrations between white and pigmented hair fractions.
  • To analyze temporal changes in hair element levels.

Main Methods:

  • Neutron Activation Analysis (NAA) was employed for elemental quantification.
  • Hair samples were collected from scalp, cheeks, and chin over an extended period.
  • Samples were meticulously separated into white and pigmented portions for analysis.

Related Experiment Videos

Main Results:

  • Significant temporal variations in elements like Br, Ca, Cl, Cu, I, Mg, Mn, Na, S, and Zn were observed.
  • Distinct differences in elemental concentrations were found between white and pigmented hair fractions.
  • Longitudinal data revealed dynamic changes in hair element profiles.

Conclusions:

  • Hair trace element composition is dynamic and influenced by time and pigmentation status.
  • Elemental analysis of hair offers a valuable tool for studying long-term physiological and environmental interactions.
  • Further research can elucidate the specific mechanisms driving these elemental variations in aging hair.