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 Concept Videos

Decreased Body Temperature01:29

Decreased Body Temperature

1.1K
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
1.1K
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

84.1K
Overview
84.1K
Decreasing Function01:27

Decreasing Function

290
A decreasing function describes a relationship where the output consistently declines as the input increases. This means that for any two input values, if one is greater than the other, the corresponding output is smaller. Mathematically, a function f is decreasing on an interval I if for every x1 < x2​ in I, f (x1) > f (x2). This type of behavior is visually identified on a graph that slopes downward from left to right.The nature of a function can be analyzed by calculating...
290
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

7.5K
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
7.5K
Physiological Pharmacokinetic Models: Incorporating Hepatic Transporter-Mediated Clearance01:07

Physiological Pharmacokinetic Models: Incorporating Hepatic Transporter-Mediated Clearance

299
Drug transporters are critical in drug absorption, distribution, and excretion processes. They should be included in physiological-based pharmacokinetic (PBPK) models, which help predict human drug disposition. However, predicting this is challenging during drug development, especially when liver transport is involved. However, with a realistic representation of body transport processes, an accurate model may be possible.
A recent model describes pravastatin's hepatobiliary excretion,...
299
Decreased pulse rate01:14

Decreased pulse rate

902
Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
902

You might also read

Related Articles

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

Sort by
Same author

Serological detection of <i>Neospora caninum-</i> specific antibodies in dogs of rural and urban areas within the Valdivia Province, Southern Chile.

Open veterinary journal·2026
Same author

Neonatal metabolic and immunological states drive eosinophil infiltration in South American fur seal pups.

Developmental and comparative immunology·2026
Same author

Low detection of Trypanosoma cruzi in invasive Rattus spp. across rural and natural habitats in central Chile.

One health outlook·2026
Same author

Metabolomic profiles reveal physiological transitions required for long-distance avian migration.

Scientific reports·2026
Same author

Drivers of body condition in South American sea lion pups along a latitudinal gradient.

Conservation physiology·2026
Same author

Functional Shifts in the Gut DNA Virome in a Long-Distance Migratory Shorebird During the Pre-Migratory Fattening.

Molecular ecology·2026

Related Experiment Video

Updated: Feb 3, 2026

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps
06:43

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Published on: September 25, 2023

1.9K

Immune-mediated hookworm clearance and survival of a marine mammal decrease with warmer ocean temperatures.

Mauricio Seguel1, Felipe Montalva2, Diego Perez-Venegas3

  • 1Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, United States.

Elife
|November 7, 2018
PubMed
Summary
This summary is machine-generated.

Warmer oceans increase marine mammal pup mortality from hookworm disease. Higher maternal care, linked to cooler waters, boosts pup immunity and survival against parasites.

Keywords:
climate changeecologyfur sealimmunologyinfectious diseasemarine mammalmicrobiologyparasites

More Related Videos

Cell-based Assay to Study Antibody-mediated Tau Clearance by Microglia
07:18

Cell-based Assay to Study Antibody-mediated Tau Clearance by Microglia

Published on: November 9, 2018

8.9K
Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

26.3K

Related Experiment Videos

Last Updated: Feb 3, 2026

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps
06:43

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps

Published on: September 25, 2023

1.9K
Cell-based Assay to Study Antibody-mediated Tau Clearance by Microglia
07:18

Cell-based Assay to Study Antibody-mediated Tau Clearance by Microglia

Published on: November 9, 2018

8.9K
Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

26.3K

Area of Science:

  • Marine Mammal Ecology
  • Climate Change Impacts
  • Infectious Disease Dynamics

Background:

  • Rising ocean temperatures alter marine ecosystems, affecting marine mammal foraging and maternal behaviors.
  • The impact of these environmental changes on offspring health and survival, particularly in relation to diseases, remains poorly understood.
  • Hookworm disease is a primary cause of mortality in South American fur seal pups.

Purpose of the Study:

  • To investigate the relationship between maternal attendance, pup immunity, and hookworm infection in South American fur seals.
  • To determine how ocean temperature influences maternal care, disease dynamics, and pup survival.
  • To provide a mechanistic explanation for the effects of climate change and maternal care on infectious disease in marine mammals.

Main Methods:

  • Assessed maternal attendance patterns and pup immunity in a South American fur seal rookery over a 10-year period.
  • Monitored hookworm disease prevalence and pup mortality rates.
  • Correlated sea surface temperature with maternal attendance, pup health, and disease burden.

Main Results:

  • Pups with higher maternal attendance exhibited better energy balance and stronger immune responses.
  • These pups successfully expelled hookworms via immune-mediated mechanisms, leading to improved survival.
  • Maternal attendance was higher in cooler years; consequently, hookworm burden and pup mortality increased with rising sea surface temperatures.

Conclusions:

  • Maternal care is crucial for enhancing pup immunity and survival against infectious diseases like hookworm.
  • Increased sea surface temperatures negatively impact South American fur seal pup health by reducing maternal care and increasing disease susceptibility.
  • Climate change poses a significant threat to marine mammal populations through altered maternal behavior and increased infectious disease risk.