Exposure to Antarctic Summer Affects the Immunoglobulin Rhythm but Not the Oral Temperature Rhythm.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-1258240614&userType=user&freeTextValue=Exposure+to+Antarctic+Summer+Affects+the+Immunoglobulin+Rhythm+but+Not+the+Oral+Temperature+Rhythm.

Brief Description (Abstract):

Environmental light is an important zeitgeber in humans. The long polar days of Antarctica during the summer period can disrupt the internal clock thereby desynchronizing the various bodily rhythms, which can have health implications. Hence, in the present study, in one group of six volunteers, the immunoglobulin rhythm was assessed by four hourly blood sampling. In another group of six volunteers the oral temperature rhythm was measured. The results reveal disruption of the immunoglobulin rhythm due to the influence of exogenous components and possible involvement of neuroendocrine factors. However, the oral temperature rhythm was unaffected during or after a short stay in Antarctica during the summer period. The importance of regular sleep-wake cycle and other social cues in maintaining a stable temperature rhythm is implicated.

Status: Completed

Purpose: The study was conducted on two groups of volunteers, who were members of the summer team of the 14th Indian Scientific Expedition to Antarctica. In Group-I there were 6 subjects with a mean age of 35.5 ? 5.32 years. In these subjects the oral temperature rhythm was measured in three phases. In Group-II there were 6 subjects with mean age of 33.45 ? 3.48 years. Four hourly blood sampling was done on these subjects to estimate the circadian rhythm of IgG and IgM, in two phases before and after exposure to Antarctic summer.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Human Dimensions,

Place/Location(s): Maitri, Antarctic,

Project: Exposure to Antarctic Summer Affects the Immunoglobulin Rhythm but Not the Oral Temperature Rhythm,

Topic Category(s): Health,

Date(s): 2020-09-18 (Creation),

Resource Contact(s):
1. Name : Dr. G Sundaresan
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 1995-01-01
End Date   : 1996-12-31