Alteration of Immunoglobulin and Temperature Rhythm During Winter-over Stay in Antarctica.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF1692262135&userType=user&freeTextValue=Alteration+of+Immunoglobulin+and+Temperature+Rhythm+During+Winter-over+Stay+in+Antarctica.

Brief Description (Abstract):

The alien photoperiodicity of Antarctica can disrupt the biological clock, thereby desynchronizing the various bodily rhythms, which can have health implications. This study is an attempt to find out whether the circadian rhythm disruption could be a reason for the immunosuppression observed during Antarctic stay. In the present study, in one group of six volunteers, the immunoglobulin rhythm was assessed. In another group of six volunteers the oral temperature, activity and heart rate rhythms were measured. Disruption and desynchronization of the temperature rhythm with respect to activity and heart rate rhythms was noted. In the other group, disruption of the serum immunoglobulin rhythm was noted irrespective of the season. Our results clearly indicate that the decrease in the serum immunoglobulins IgG and IgM are associated with disruption of their circadian rhythm. Involvement of neuroendocrine factors is postulated.

Status: Completed

Purpose: The human subjects included in this study were all Indian, male members of the 15th Indian Scientific Expedition to Antarctica who were on winter-over assignment. The objectives of the study were briefed to all the members of the expedition and only those who volunteered for the study were included. Out of the 25 winter-over members two groups of 6 volunteers each were included in the study. Group-I had a mean age of 33.51 ? 5.42 years and mean body weight 68.47 ? 6.25 kg in whom the circadian rhythm of body temperature, activity and heart rate were studied. In Group-II, with mean age 34.17 ? 2.73 years and mean body weight 67.17 ? 7.22 kgs, the circadian rhythm of immunoglobulin was studied.

Presentation Format: Documentdigital

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Supplemental Information:

TableDigital

Keyword(s): Earth Science-Human Dimensions,

Place/Location(s): Maitri, Antarctic,

Project: Alteration of Immunoglobulin and Temperature Rhythm During Winter-over Stay in Antarctica,

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