Profiles of hemolymph antioxidant system in apparently healthy marine bivalve, Perna viridis (Linnaeus, 1758) residing in a normoxic coastal ecosystem

2021 ◽  
pp. 107599
Author(s):  
B.R. Neethu ◽  
K.J. Reshma ◽  
T.G. Sumithra ◽  
M.B. Akhitha ◽  
P.V. Amala ◽  
...  
Keyword(s):  
Antioxidant System ◽  
Coastal Ecosystem ◽  
Perna Viridis ◽  
Marine Bivalve ◽  
Apparently Healthy

Exploration of antioxidant capacity of extracts of Perna viridis, a marine bivalve

2019 ◽  
Vol 15 (66) ◽  
pp. 402
Author(s):  
Subramani Parasuraman ◽  
Venkateskumar Krishnamoorthy ◽  
LeowYu Chuen ◽  
Vengadan Sivayogi ◽  
Sathasivam Kathiresan ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Perna Viridis ◽  
Marine Bivalve

scholarly journals Synergistic Effects of Salinity and Temperature on the Survival of Two Nonnative Bivalve Molluscs,Perna viridis(Linnaeus 1758) andMytella charruana(d’Orbigny 1846)

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Wei S. Yuan ◽  
Linda J. Walters ◽  
Sasha A. Brodsky ◽  
Kimberly R. Schneider ◽  
Eric A. Hoffman
Keyword(s):  
Synergistic Effects ◽  
Southeastern United States ◽  
Temperature Tolerance ◽  
Nonnative Species ◽  
Perna Viridis ◽  
Marine Bivalve ◽  
Tolerance Range ◽  
Bivalve Molluscs ◽  
Wide Range ◽  
Abiotic Variables

This study examined the combined salinity and temperature tolerance of two marine bivalve molluscs,Perna viridisandMytella charruana, which have recently invaded the southeastern United States. It is essential to understand the role that these abiotic variables play in invasions and establishment of nonnative species. We simultaneously explored survival at three salinity ranges (5–9, 20–22.5, and 35–40 ppt) in both cold and warm water for juveniles and adults of both species. We determined thatPerna viridiscan survive at a wide range of temperatures (9–35°C) when the salinity is 35–37 ppt; however, as salinity decreased, the thermal survival range forP. viridisbecame narrower. WithM. charruana, our data suggest that juvenile and adult individuals can survive at a wide range of salinities (5–40 ppt) at 20°C, but the salinity tolerance range narrowed as the temperature decreased or increased. Additionally, we observed that temperature rapidly impacted survival ofP. viridisandM. charruana(within hours), while salinity impacts were more gradual (days to weeks). These data can be used to help predict successful introductions and future expansions ofP. viridisandM. charruanain introduced habitats.

Prevalence of Factor V Leiden Mutation in Non-European Populations

1997 ◽  
Vol 77 (02) ◽  
pp. 329-331 ◽  
Author(s):  
Guglielmina Pepe ◽  
Olga Rickards ◽  
Olga Camacho Vanegas ◽  
Tamara Brunelli ◽  
Anna Maria Gori ◽  
...  
Keyword(s):  
Factor V Leiden ◽  
Indirect Evidence ◽  
Factor V ◽  
Factor V Leiden Mutation ◽  
The World ◽  
Fv Leiden ◽  
Sub Saharan ◽  
Low Prevalence ◽  
European Populations ◽  
Apparently Healthy

SummaryA difference in the prevalence of venous thromboembolism (TE) in major human groups has been described and an uneven distribution of FV Leiden mutation over the world has recently been reported.We investigated FV Leiden mutation in 584 apparently healthy sub#jects mostly from populations different from those previously investi#gated: 170 Europeans (Spanish, Italians), 101 sub-saharan Africans (Fon, Bariba, Berba, Dendi), 115 Asians (Indonesians, Chinese, Tharus), 57 Amerindians (Cayapa), 84 Afroamericans (Rio Cayapa, Viche), and 57 Ethiopians (Amhara, Oromo).The mutation was detected in only 1/115 Asian (Tharu) and in 5/170 Europeans (4 Italians, 1 Spanish).These data confirm that in non-Europeans the prevalence of FV mutation is at least 7 times lower than in Europeans and provide indirect evidence of a low prevalence not only of the FV Leiden gene but also of other genes leading to more severe thrombophilia. Finally, findings from the literature together with those pertaining to this study clearly show a marked heterogeneity among Europeans.

EPIDEMIOLOGY, ECOLOGY AND PREVALENCE OF SOIL TRANSMITTED HELMINTHS FROM KOSHI REGION OF NORTH BIHAR.

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
LAKSHMI CHOUDHARY ◽  
PRABHAWATI PRABHAWATI
Keyword(s):  
Relative Humidity ◽  
Ascaris Lumbricoides ◽  
Rainy Season ◽  
Climatic Factors ◽  
Trichuris Trichiura ◽  
Hookworm Infection ◽  
Soil Transmitted Helminths ◽  
High Incidence ◽  
Apparently Healthy

Prevalence of soil transmitted helminthes infections in apparently healthy school going children and other 528 people of different districts of Koshi regions of North Bihar were evaluated. Over all incidences of STHs infection was 39.39% during study. High incidence of STH was seen in the rainy season i.e., in the month of July and August, September, significantly higher (P<0.05) .The incidence of Ascaris lumbricoides was highest in the month of August (18.64%). The month of September was 15.25% followed by that of July (14.4%) and October with 10.16%. Also the incidence of hookworm registered the highest incidence in the month of June (19.27%) and lowest in the month of December (4.82%) during the study period. However prevalence of Trichuris trichiura was negligible and it was almost nil in the most of the months but was highest in month of September with 28.57% and lowest in October with 14.00% The climatic factors are responsible for soil transmitted helminthes which are temperature, rainfall and relative humidity. Ascariasis, Trichuriasis and Ancyclostomiasis (Hookworm infection) are found to be endemic in this region.

Age development of cortical rhythmics in the EEG depending on the formation of the child’s personal psychical characteristics

2019 ◽  
Vol 1 (8) ◽  
pp. 42-50
Author(s):  
A. V. Budkevich ◽  
L. B. Ivanov ◽  
G. R. Novikova ◽  
G. M. Dzhanumova
Keyword(s):  
Alpha Rhythm ◽  
Age Groups ◽  
Healthy Children ◽  
Brain Organization ◽  
Age Related ◽  
Mathematical Processing ◽  
Functional Brain Organization ◽  
Child's Brain ◽  
Attention Function ◽  
Apparently Healthy

According to the authors, rationing the age-related EEG parameters in children should be based on personal psychical characteristics. A comparative analysis of personal psychical characteristics and electroencephalographic data was carried out in 300 apparently healthy children aged 3-15 years. According to this principle, two subgroups of conditionally healthy children in each age group were singled out: 1) with an immature attention function and 2) with an increased anxious background that do not reach the pathological level. Registration and analysis of EEG was performed by the Neurokariograf computer complex (MBN, Moscow) using mathematical processing methods.The EEG interpretation was based on the principle of assessing the functional state of a child's brain using a three-component model according to: 1) wakefulness level and its dissociation, 2) severity of signs of the EEG neurotic pattern, 3) directionality of formation of traits of the system-functional brain organization (severity of signs functional hypofrontality).lt was found the presence of EEG signs was indicative of a lower level of wakefulness in children with an immature function of attention in all age groups, compared with the indicators of the average population of group and children with an increased background of anxiety. Children with an increased background of anxiety have a tendency to prevalence and excessive spatial synchronization of the alpha rhythm. ln healthy children, the fact of a decrease in wakefulness and the presence of signs of anxiety in the clinic and in EEG patterns indicates individual personalities and should not be considered as pathology.

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