Where are we? Towards an understanding of the selective accumulation of microplastics in mussels

2021 ◽  
pp. 117543
Author(s):  
Jiana Li ◽  
Zhenglu Wang ◽  
Jeanette M. Rotchell ◽  
Xiaoteng Shen ◽  
Qipei Li ◽  
...  
Keyword(s):  
Selective Accumulation

scholarly journals Accumulation of Elements in Biodeposits on the Stone Surface in Urban Environment. Case Studies from Saint Petersburg, Russia

2020 ◽  
Vol 9 (1) ◽  
pp. 36
Author(s):  
Katerina V. Sazanova (nee Barinova) ◽  
Marina S. Zelenskaya ◽  
Vera V. Manurtdinova ◽  
Alina R. Izatulina ◽  
Aleksei V. Rusakov ◽  
...  
Keyword(s):  
Microbial Community ◽  
Optical Microscopy ◽  
Elemental Composition ◽  
Urban Environment ◽  
Microbial Metabolites ◽  
Stone Surface ◽  
Saint Petersburg ◽  
Icp Ms ◽  
Living Organisms ◽  
Selective Accumulation

The pattern of elements accumulation in biodeposits formed by living organisms and extracellular products of their metabolism (biofouling, primary soils) on different bedrocks (of the monuments of Historical necropoleis in Saint Petersburg) were studied by a complex of biological and mineralogical methods (optical microscopy, SEM, EDX, XRD, ICP MS, XRFS). The content of 46 elements in biodeposits with various communities of microorganisms is determined. The model recreating the picture of the input and selective accumulation of elements in biodeposits on the stone surface in outdoor conditions is assumed. It is shown that the main contribution to the elemental composition of biodeposits is made by the environment and the composition of the microbial community. The contribution of leaching under the action of microbial metabolites of mineral grains, entering biodeposits from the environment, is significantly greater than that of the underlying rock.

Selective accumulation of [125I] labelled nerve growth factor in sympathetic ganglia

1972 ◽  
Vol 46 ◽  
pp. 421-425 ◽  
Author(s):  
R.H. Angeletti ◽  
P.U. Angeletti ◽  
Rita Levi-Montalcini
Keyword(s):  
Nerve Growth Factor ◽  
Growth Factor ◽  
Sympathetic Ganglia ◽  
Nerve Growth ◽  
Selective Accumulation

Selective Accumulation of the Endoplasmic Reticulum–Golgi Intermediate Compartment Induced by the Antitumor Drug KRN5500

2000 ◽  
Vol 256 (2) ◽  
pp. 468-479 ◽  
Author(s):  
Masaru Kamishohara ◽  
Susan Kenney ◽  
Renee Domergue ◽  
David T. Vistica ◽  
Edward A. Sausville
Keyword(s):  
Endoplasmic Reticulum ◽  
Antitumor Drug ◽  
Intermediate Compartment ◽  
Selective Accumulation

scholarly journals ULTRASTRUCTURAL IDENTIFICATION OF CATECHOLAMINE-CONTAINING CENTRAL SYNAPTIC TERMINALS

1973 ◽  
Vol 21 (4) ◽  
pp. 333-348 ◽  
Author(s):  
FLOYD E. BLOOM
Keyword(s):  
Nervous System ◽  
Nerve Terminals ◽  
Synaptic Terminals ◽  
Direct Localization ◽  
Sympathetic Nervous ◽  
Neurotransmitter Substances ◽  
6 Hydroxydopamine ◽  
The Brain ◽  
Selective Accumulation ◽  
Peripheral Sympathetic Nervous System

Cytochemical methods for the localization of central catecholamine-containing synaptic terminals have been developed from an extensive foundation of biochemical work and from extrapolation of results on the peripheral sympathetic nervous system. Direct localization of catecholamines in central nerve terminals in some parts of the brain can now be obtained by fixation with permanganates. More broadly applicable, but less direct localizing methods depend upon selective accumulation of tritiated catecholamines for autoradiography or the accumulation of reactive catecholamine congeners which act as markers with conventional fixation. The pattern of acute degenerative changes which result after treatment with 6-hydroxydopamine can also be used to provide an indirect localization of the terminals which had stored catecholamines. When the results of each of the methods are combined, the present techniques indicate that catecholamine-containing terminals in the brain can be identified more confidently than any other system of neurotransmitter substances. Nevertheless, there is considerable need for future cytochemical innovation.

Nuclear transplantation and the control of gene activity in animal development

1970 ◽  
Vol 176 (1044) ◽  
pp. 303-314 ◽  
Keyword(s):  
Nuclear Transfer ◽  
Somatic Cells ◽  
Gene Activity ◽  
Protein Fractions ◽  
Nuclear Transplantation ◽  
Animal Development ◽  
Cytoplasmic Proteins ◽  
Intracellular Movement ◽  
Selective Accumulation ◽  
Structure And Metabolism

The transplantation of nuclei from differentiated or determined somatic cells to enucleated frogs’ eggs consistently leads to a complete and clearly recognizable change of gene activity. Within 1 to 2 h of nuclear transfer, somatic nuclei have come to resemble in structure and metabolism the zygote nuclei of fertilized eggs. The change in gene activity therefore takes place very soon after nuclear transfer and results from an effect of egg cytoplasm. The induced change in gene activity is associated with a selective accumulation of cytoplasmic proteins in transplanted nuclei. Examples are given of various ways in which nuclear transplantation and microinjection can be used to elucidate the intracellular movement of proteins and the effect of known protein fractions on gene activity.

scholarly journals Multifunctional Cyanine-Based Theranostic Probe for Cancer Imaging and Therapy

2021 ◽  
Vol 22 (22) ◽  
pp. 12214
Author(s):  
Cheng-Liang Peng ◽  
Ying-Hsia Shih ◽  
Ping-Fang Chiang ◽  
Chun-Tang Chen ◽  
Ming-Cheng Chang
Keyword(s):  
Photothermal Therapy ◽  
Radionuclide Therapy ◽  
Nuclear Imaging ◽  
Biological Evaluation ◽  
Targeted Radionuclide Therapy ◽  
Nir Fluorescence ◽  
Tumor Accumulation ◽  
Selective Accumulation

Cancer is one of the leading causes of death in the world. A cancer-targeted multifunctional probe labeled with the radionuclide has been developed to provide multi-modalities for NIR fluorescence and nuclear imaging (PET, SPECT), for photothermal therapy (PTT), and targeted radionuclide therapy of cancer. In this study, synthesis, characterization, in vitro, and in vivo biological evaluation of the cyanine-based probe (DOTA-NIR790) were demonstrated. The use of cyanine dyes for the selective accumulation of cancer cells were used to achieve the characteristics of tumor markers. Therefore, all kinds of organ tumors can be targeted for diagnosis and treatment. The DOTA-NIR790 labeled with lutetium-111 could detect original or metastatic tumors by using SPECT imaging and quantify tumor accumulation. The β-emission of 177Lu-DOTA-NIR790 can be used for targeted radionuclide therapy of tumors. The DOTA-NIR790 enabled imaging by NIR fluorescence and by nuclear imaging (SPECT) to monitor in real-time the tumor accumulation and the situation of cancer therapy, and to guide the surgery or the photothermal therapy of the tumor. The radionuclide-labeled heptamethine cyanine based probe (DOTA-NIR790) offers multifunctional modalities for imaging and therapies of cancer.

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