scholarly journals Relationships of Copper Concentrations between the Different Soft Tissues of Telescopium telescopium and the Surface Sediments Collected from Tropical Intertidal Areas

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Chee Kong YAP ◽  
Noorhaidah ARIFIN ◽  
Soo Guan TAN
Author(s):  
Chee Kong Yap ◽  
Wen Siang Tan ◽  
Mohamad Saupi Ismail ◽  
Noorhaidah Ariffin ◽  
Wan Hee Cheng ◽  
...  

Monitoring the level of metal pollution in a water body, especially in polluted areas, is crucial. Gastropod shells have been used as a biomonitor for metal pollution. The goal of this study was to evaluate the utilisation of the mudflat snails, Telescopium telescopium shells, as biomonitoring materials for nickel (Ni) pollution in the intertidal area. The snails and their habitat surface sediments were sampled from 17 sites in Peninsular Malaysia. Up to 21 individuals from each site were sampled and dissected. In addition to the shells, six parts of the soft tissues (cephalic tentacle, foot, gill, muscle, mantle, and remaining soft tissues) were analysed for Ni. The snail shell was found to be a potential biomonitoring material for Ni pollution based on four positive points: (i) higher value of shell/soft tissue ratios (> 1.00); (ii) categorisation as a ‘microconcentrator’ based on bioaccumulation factor; (iii) significant correlation coefficients (at least P < 0.05) and significant influential total Ni levels in the sediments to the shell Ni; and (iv) higher precision of Ni in the shells based on the lowest value of the coefficient of variation of Ni. The described results indicated that the shell of T. telescopium would be suitable for assessing Ni pollution in the intertidal areas.


Author(s):  
Samuel N. Luoma ◽  
G. W. Bryan

Concentrations of lead in the soft tissues of the deposit-feeding bivalve Scrobicularia plana have been compared with the physicochemical characteristics of sediments in 20 estuaries in southern and western England and one in north-west France. The results indicate that the biological availability of lead in the sediment is controlled mainly by the concentration of iron, and that the concentration of lead in the bivalve may be predicted from the Pb/Fe ratio in 1 N hydrochloric acid extracts of surface sediments.


2020 ◽  
Vol 37 (1) ◽  
Author(s):  
Valentin Sharobaro ◽  
Sekina Alimova ◽  
Anna Telnova ◽  
Liudmila Shamanaeva

Objective: To develop a clinical technique for objective estimation of exact location and degree of participation of face and neck soft tissues in age-related deformations for determine effective mini-invasive treatment techniques. Methods: Ultrasound examination was performed in 2017-2019 at 63 patients with age-related face changes. Examination was done in the vertical position for determine the role, exact location and participation degree of different soft tissues of the face and neck in age-related changes. Results: Great diagnostic value of ultrasound examination of involutional changes in soft tissues of lower third of face and neck was noted to determine all causes of contour age-related deformities. These results were used to choose effective minimally invasive methods for correction. Conclusion: Ultrasound examination is a non-invasive, harmless, clinically available, inexpensive examination that allows to determine exact localization and degree of participation of different soft tissues of face and neck in age-related changes. That is very important for planning and use different minimally invasive techniques for facial and neck rejuvenation. doi: https://doi.org/10.12669/pjms.37.1.3034 How to cite this:Sharobaro V, Alimova S, Telnova A, Shamanaeva L. Ultrasound diagnosis of age-related involutional changes in the lower third of face and neck to determine treatment techniques. Pak J Med Sci. 2021;37(1):272-276. doi: https://doi.org/10.12669/pjms.37.1.3034 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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