scholarly journals Mutagenic effects of phosphemid at the cellular and organismal levels

1970 ◽  
Vol 21 ◽  
pp. 117-122
Author(s):  
L. I. Weisfeld ◽  
N. A. Bome
Keyword(s):  
Winter Wheat ◽  
Human Fibroblasts ◽  
Wheat Plant ◽  
Mitotic Cell ◽  
Chemical Mutagenesis ◽  
Cytogenetic Effect ◽  
Crepis Capillaris ◽  
Wide Range ◽  
Cultured Human Fibroblasts ◽  
Mutagenic Effects

Aim. Study of cytogenetic effect of phosphemid on the fibroblast human and mice. Application of phosphemid for inducing mutagenesis wheat. Methods. We studied the cytogenetic effect of a alkylating agent, named phosphemide – di-(etilenimid)pyrimidyl-2-amidophosphoric acid, in cultured human fibroblasts and mouse and in seedlings plant Crepis capillaris. Besides we studied the seeds, seedlings and plants of spring and winter wheat. Results. We have shown that phosphemid inhibits mitotic cell division and it induces many aberrations in chromosomes. At plants of spring and winter wheat it was be shown, that a mutagen phosphemid was induced a wide range new characters, and among them were a number of useful characters for selection. Conclusions. It is proposed the use of a new chemical mutagen named phosphemid in order for obtaining a wide variety of crops and for creation new varieties.Keywords: chemical mutagenesis, cytogenetics, wheat, plant selection, fibroblasts, Crepis capillaris (L.) Wallr.

scholarly journals Influence of chlorate on proteoglycan biosynthesis by cultured human fibroblasts.

1988 ◽  
Vol 263 (26) ◽  
pp. 12886-12892 ◽  
Author(s):  
H Greve ◽  
Z Cully ◽  
P Blumberg ◽  
H Kresse
Keyword(s):  
Human Fibroblasts ◽  
Cultured Human Fibroblasts

scholarly journals Fatty alcohol metabolism in cultured human fibroblasts. Evidence for a fatty alcohol cycle.

1987 ◽  
Vol 262 (36) ◽  
pp. 17412-17419 ◽  
Author(s):  
W B Rizzo ◽  
D A Craft ◽  
A L Dammann ◽  
M W Phillips
Keyword(s):  
Fatty Alcohol ◽  
Human Fibroblasts ◽  
Alcohol Metabolism ◽  
Cultured Human Fibroblasts

L-iduronidase in cultured human fibroblasts and liver

1971 ◽  
Vol 42 (2) ◽  
pp. 340-345 ◽  
Author(s):  
Reuben Matalon ◽  
J.A. Cifonelli ◽  
Albert Dorfman
Keyword(s):  
Human Fibroblasts ◽  
Cultured Human Fibroblasts

scholarly journals Rattail fescue (Vulpia myuros) interference and seed production as affected by sowing time and crop density in winter wheat

Weed Science ◽  
2020 ◽  
pp. 1-10
Author(s):  
Muhammad Javaid Akhter ◽  
Per Kudsk ◽  
Solvejg Kopp Mathiassen ◽  
Bo Melander
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Seed Production ◽  
Yield Components ◽  
Field Experiments ◽  
Growing Season ◽  
Sowing Time ◽  
Growing Seasons ◽  
Crop Density ◽  
Wide Range

Abstract Field experiments were conducted in the growing seasons of 2017 to 2018 and 2018 to 2019 to evaluate the competitive effects of rattail fescue [Vulpia myuros (L.) C.C. Gmel.] in winter wheat (Triticum aestivum L.) and to assess whether delayed crop sowing and increased crop density influence the emergence, competitiveness, and fecundity of V. myuros. Cumulative emergence showed the potential of V. myuros to emerge rapidly and under a wide range of climatic conditions with no effect of crop density and variable effects of sowing time between the two experiments. Grain yield and yield components were negatively affected by increasing V. myuros density. The relationship between grain yield and V. myuros density was not influenced by sowing time or by crop density, but crop–weed competition was strongly influenced by growing conditions. Due to very different weather conditions, grain yield reductions were lower in the growing season of 2017 to 2018 than in 2018 to 2019, with maximum grain yield losses of 22% and 50% in the two growing seasons, respectively. The yield components, number of crop ears per square meter, and 1,000-kernel weight were affected almost equally, reflecting that V. myuros’s competition with winter wheat occurred both early and late in the growing season. Seed production of V. myuros was suppressed by delaying sowing and increasing crop density. The impacts of delayed sowing and increasing crop density on seed production of V. myuros highlight the potential of these cultural weed control tactics in the long-term management programs of this species.

scholarly journals The transport of neutral amino acids in cultured human fibroblasts.

1980 ◽  
Vol 255 (3) ◽  
pp. 929-936 ◽  
Author(s):  
G.C. Gazzola ◽  
V. Dall'Asta ◽  
G.G. Guidotti
Keyword(s):  
Amino Acids ◽  
Human Fibroblasts ◽  
Neutral Amino Acids ◽  
Cultured Human Fibroblasts

scholarly journals Transport of l-Isoleucine by Cultured Human Fibroblasts

1974 ◽  
Vol 249 (11) ◽  
pp. 3430-3435
Author(s):  
Richard E. Hillman ◽  
Elaine F. Otto
Keyword(s):  
Human Fibroblasts ◽  
Cultured Human Fibroblasts

scholarly journals Na/K/Cl cotransport in cultured human fibroblasts.

1985 ◽  
Vol 260 (3) ◽  
pp. 1445-1451
Author(s):  
N E Owen ◽  
M L Prastein
Keyword(s):  
Human Fibroblasts ◽  
Cultured Human Fibroblasts

scholarly journals Scaffold Hopping of α-Rubromycin Enables Direct Access to FDA-Approved Cromoglicic Acid as a SARS-CoV-2 MPro Inhibitor

2021 ◽  
Vol 14 (6) ◽  
pp. 541
Author(s):  
Hani A. Alhadrami ◽  
Ahmed M. Sayed ◽  
Heba Al-Khatabi ◽  
Nabil A. Alhakamy ◽  
Mostafa E. Rateb
Keyword(s):  
Binding Free Energy ◽  
Human Fibroblasts ◽  
Critical Time ◽  
Dynamics Simulation ◽  
Direct Access ◽  
Energy Calculation ◽  
Wide Range ◽  
Normal Human ◽  
Novel Scaffold

The COVID-19 pandemic is still active around the globe despite the newly introduced vaccines. Hence, finding effective medications or repurposing available ones could offer great help during this serious situation. During our anti-COVID-19 investigation of microbial natural products (MNPs), we came across α-rubromycin, an antibiotic derived from Streptomyces collinus ATCC19743, which was able to suppress the catalytic activity (IC50 = 5.4 µM and Ki = 3.22 µM) of one of the viral key enzymes (i.e., MPro). However, it showed high cytotoxicity toward normal human fibroblasts (CC50 = 16.7 µM). To reduce the cytotoxicity of this microbial metabolite, we utilized a number of in silico tools (ensemble docking, molecular dynamics simulation, binding free energy calculation) to propose a novel scaffold having the main pharmacophoric features to inhibit MPro with better drug-like properties and reduced/minimal toxicity. Nevertheless, reaching this novel scaffold synthetically is a time-consuming process, particularly at this critical time. Instead, this scaffold was used as a template to explore similar molecules among the FDA-approved medications that share its main pharmacophoric features with the aid of pharmacophore-based virtual screening software. As a result, cromoglicic acid (aka cromolyn) was found to be the best hit, which, upon in vitro MPro testing, was 4.5 times more potent (IC50 = 1.1 µM and Ki = 0.68 µM) than α-rubromycin, with minimal cytotoxicity toward normal human fibroblasts (CC50 > 100 µM). This report highlights the potential of MNPs in providing unprecedented scaffolds with a wide range of therapeutic efficacy. It also revealed the importance of cheminformatics tools in speeding up the drug discovery process, which is extremely important in such a critical situation.

Sign in / Sign up

Export Citation Format

Share Document