Biological Effects of Irradiation with Thermal Neutrons on Boll Weevils Fed Boric Acid Containing Boron-101

1971 ◽  
Vol 64 (5) ◽  
pp. 1002-1008 ◽  
Author(s):  
H. M. Flint ◽  
E. L. Walk ◽  
W. Klassen ◽  
D. Greenberg
Keyword(s):  
Boric Acid ◽  
Biological Effects ◽  
Thermal Neutrons

scholarly journals A Comparison of Biological Effects between Thermal Neutrons and X-rays on Rice Seeds.

1958 ◽  
Vol 8 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Takane MATSUO ◽  
Hikoyuki YAMAGUCHI ◽  
Akihiko ANDO
Keyword(s):  
Biological Effects ◽  
Thermal Neutrons ◽  
X Rays ◽  
Rice Seeds

DNA Strand Breaks Induced by Fast and Thermal Neutrons from YAYOI Research Reactor in the Presence and Absence of Boric Acid

2019 ◽  
Vol 191 (5) ◽  
pp. 483
Author(s):  
Erdenetogtokh Jamsranjav ◽  
Atsushi Ito ◽  
Yoshinari Kato ◽  
Yousuke Tatebe ◽  
Nobuhiro Takase ◽  
...  
Keyword(s):  
Boric Acid ◽  
Research Reactor ◽  
Dna Strand Breaks ◽  
Thermal Neutrons ◽  
Strand Breaks ◽  
Presence And Absence ◽  
Dna Strand

scholarly journals Boric acid as a protector against paclitaxel genotoxicity.

2010 ◽  
Vol 57 (1) ◽  
Author(s):  
Hasan Turkez ◽  
Abdulgani Tatar ◽  
Ahmet Hacimuftuoglu ◽  
Ebru Ozdemir
Keyword(s):  
Boric Acid ◽  
Nuclear Division ◽  
Biological Effects ◽  
Boron Deficiency ◽  
Healthy Human ◽  
Lung Cancers ◽  
Therapeutic Uses ◽  
Dietary Boron ◽  
Nuclear Division Index ◽  
Human Blood Cultures

Paclitaxel (PAC) is an anticancer drug used for treatments of breast, ovarian and lung cancers. However, little data is available in the literature on its potential genotoxicity on healthy human cells. On the other hand, boron deficiency and supplementation exert important biological effects in human and animal tissues. The biological effects of dietary boron are defined, but its interaction with PAC is not known for therapeutic uses. The aim of the present study was to determine whether boric acid (BA) confer a protection against PAC genotoxicity. After the application of PAC (10 or 20 microg/l) and BA (2.5 or 5 mg/l), the genotoxic effects were assessed by sister chromatid exchange (SCE) and micronucleus (MN) tests in human blood cultures. We also analyzed nuclear division index (NDI) in peripheral lymphocytes. Our results showed that PAC significantly (P

Ultrastructural Changes in Three Different Mammalian Cells Following Ultraviolet Laser Irradiation

1972 ◽  
Vol 30 ◽  
pp. 350-351
Author(s):  
K. Shankar Narayan ◽  
Kailash C. Gupta ◽  
Tohru Okigaki
Keyword(s):  
Ultraviolet Light ◽  
Mammalian Cells ◽  
Biological Effects ◽  
Survival Rates ◽  
Chinese Hamster ◽  
Cell Types ◽  
Differential Sensitivity ◽  
Ultrastructural Changes ◽  
Ultraviolet Laser

The biological effects of short-wave ultraviolet light has generally been described in terms of changes in cell growth or survival rates and production of chromosomal aberrations. Ultrastructural changes following exposure of cells to ultraviolet light, particularly at 265 nm, have not been reported.We have developed a means of irradiating populations of cells grown in vitro to a monochromatic ultraviolet laser beam at a wavelength of 265 nm based on the method of Johnson. The cell types studies were: i) WI-38, a human diploid fibroblast; ii) CMP, a human adenocarcinoma cell line; and iii) Don C-II, a Chinese hamster fibroblast cell strain. The cells were exposed either in situ or in suspension to the ultraviolet laser (UVL) beam. Irradiated cell populations were studied either "immediately" or following growth for 1-8 days after irradiation.Differential sensitivity, as measured by survival rates were observed in the three cell types studied. Pattern of ultrastructural changes were also different in the three cell types.

Genomic analysis of C-type lectins

2002 ◽  
Vol 69 ◽  
pp. 59-72 ◽  
Author(s):  
Kurt Drickamer ◽  
Andrew J. Fadden
Keyword(s):  
Biological Effects ◽  
Cell Signalling ◽  
Genomic Analysis ◽  
Binding Activity ◽  
Immunoglobulin Superfamily ◽  
Carbohydrate Binding ◽  
Carbohydrate Recognition ◽  
Calcium Dependent ◽  
Binding Domains ◽  
Carbohydrate Recognition Domains

Many biological effects of complex carbohydrates are mediated by lectins that contain discrete carbohydrate-recognition domains. At least seven structurally distinct families of carbohydrate-recognition domains are found in lectins that are involved in intracellular trafficking, cell adhesion, cell–cell signalling, glycoprotein turnover and innate immunity. Genome-wide analysis of potential carbohydrate-binding domains is now possible. Two classes of intracellular lectins involved in glycoprotein trafficking are present in yeast, model invertebrates and vertebrates, and two other classes are present in vertebrates only. At the cell surface, calcium-dependent (C-type) lectins and galectins are found in model invertebrates and vertebrates, but not in yeast; immunoglobulin superfamily (I-type) lectins are only found in vertebrates. The evolutionary appearance of different classes of sugar-binding protein modules parallels a development towards more complex oligosaccharides that provide increased opportunities for specific recognition phenomena. An overall picture of the lectins present in humans can now be proposed. Based on our knowledge of the structures of several of the C-type carbohydrate-recognition domains, it is possible to suggest ligand-binding activity that may be associated with novel C-type lectin-like domains identified in a systematic screen of the human genome. Further analysis of the sequences of proteins containing these domains can be used as a basis for proposing potential biological functions.

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