Scientific papers 2020
The documents are classified chronologically from 2020 to 2021.
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Authors: Marko Žarak, Antonija Perovic, Marina Njire
Braticevic, Sandra Šupraha Goreta, Jerka Dumic.
It has been shown that one diving session is sufficient to
cause changes in plasma level of cardiovascular (CV) and
muscular biomarkers.
To explore whether repetitive diving triggers an adaptive
response of the CV, muscular, and immune system, the
authors measured the cardiac damage, muscle damage,
vascular endothelial activation, and inflammatory,
biomarkers. A longitudinal intervention study included
divers (N = 14) who conducted one dive per week over 5
weeks at the depth of 20–30 m for 30 min after a non-dive
period of 5 months. Blood samples were collected before
and after the first, third, and fifth dives and specific
biomarkers were measured in plasma or serum by the
standard laboratory methods.
Authors:
Daniel Popa, Anthony Medak, Walter Chin, Oswaldo
Huchim-Lara, 2 scientists, Tudor Hughes, Ian Grover.
Artisanal diving fishermen in Yucatan, Mexico have high
rates of decompression sickness as a result of frequently
unsafe diving practices with surface supplied compressed
air. In this study, the authors investigated the prevalence of
dysbaric osteonecrosis (DON), a type of avascular necrosis,
in the most susceptible joints in a cohort of these
fishermen.
Authors: Simona Mrakic-Sposta, Alessandra Vezzoli,
Federica D’Alessandro, Matteo Paganini, Cinzia
Dellanoce, Danilo Cialoni, and Gerardo Bosco
This study investigated the effects of saturation diving on
oxidative stress damage. Four divers were included in the
study. After the saturation dive (post), significant increases
in reactive oxygen species (ROS), total antioxidant capacity
(TAC), total antioxidant capacity (TAC), and nitric oxide
metabolites (NOx) were detected.
The authors say that these results could ameliorate
commercial or military diving protocols or improve the
understanding of symptoms caused by oxygen level
elevation.
Authors:
Patrick J. Kirkland, Dana Mathew, Pranav Modi, & Jeffrey S.
Cooper
Nitrogen narcosis is a change in consciousness,
neuromuscular function, and behavior brought on by
breathing compressed inert gasses. It has also been called
depth intoxication, ”narks,” and rapture of the deep.
Traditionally the gas involved in narcosis is nitrogen, and it
is associated with dysfunction when breathed by scuba
divers from their tanks containing compressed air. Other
inert gasses associated with narcosis include neon, argon,
krypton, and xenon, with the latter having an anesthetic
effect even at sea level. Interestingly, helium does not
cause inert gas narcosis and therefore, is used in deep
diving as heliox.