Results 21 to 30 of about 40,055 (282)

The old and new biochemistry of polyamines [PDF]

open access: yes, 2018
Polyamines are ubiquitous positively charged amines found in all organisms. These molecules play a crucial role in many biological functions including cell growth, gene regulation and differentiation.
Lane, Darius JR   +7 more
core   +1 more source

The role of polyamines in response to abiotic stresses [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2023
Under the influence of various abiotic stresses, the growth, development and geographic distribution of plants change. In order to survive adverse environmental conditions and to sustain life, plants have evolved various combat and adaptive strategies to
Saeed Amini, Reza Maali Amiri
doaj   +1 more source

Polyamines and eIF5A hypusination facilitate SREBP2 synthesis and cholesterol production leading to enhanced enterovirus attachment and infection.

open access: yesPLoS Pathogens, 2023
Metabolism is key to cellular processes that underlie the ability of a virus to productively infect. Polyamines are small metabolites vital for many host cell processes including proliferation, transcription, and translation.
Mason R Firpo   +4 more
doaj   +1 more source

Influence of anti-hyperlipidemic activity by co-administration of polyamines and rutin with simvastatin [PDF]

open access: yesJournal of HerbMed Pharmacology, 2023
Introduction: Natural polyphenols, rutin, endogenous polycations, and polyamines (spermine and spermidine) are reported to have beneficial effects on hyperlipidemia, obesity, and cardiovascular disease (CVD).
Rajesh R Patil   +3 more
doaj   +1 more source

Polyamines Influence Mouse Sperm Channels Activity [PDF]

open access: yes, 2021
Polyamines are ubiquitous polycationic compounds that are highly charged at physiological pH. While passing through the epididymis, sperm lose their capacity to synthesize the polyamines and, upon ejaculation, again come into contact with the polyamines ...
Charmina Aguirre-Alvarado   +6 more
core   +1 more source

Polyamines Upregulate Cephalosporin C Production and Expression of β-Lactam Biosynthetic Genes in High-Yielding Acremonium chrysogenum Strain

open access: yesMolecules, 2021
The high-yielding production of pharmaceutically significant secondary metabolites in filamentous fungi is obtained by random mutagenesis; such changes may be associated with shifts in the metabolism of polyamines.
Alexander A. Zhgun, Mikhail A. Eldarov
doaj   +1 more source

Polyamines in Soybeans [PDF]

open access: yesPlant Physiology, 1972
Putrescine, spermidine, and spermine were three main polyamines isolated from soybeans and partially characterized. Occurrence of polyamines in soybeans was established by separating trichloroacetic acid extracts of soybeans by cationic exchange column chromatography, identification with thin layer chromatography, paper electrophoresis, mass spectral ...
openaire   +2 more sources

Polyamines as redox homeostasis regulators during salt stress in plants

open access: yesFrontiers in Environmental Science, 2015
The balance between accumulation of stress-induced polyamines and reactive oxygen species (ROS) is arguably a critical factor in plant tolerance to salt stress.
Jayita eSaha   +7 more
doaj   +1 more source

Urinary Excretion of Free and Acetylated Polyamines in Hepatocellular Carcinoma

open access: yesThe International Journal of Biological Markers, 1998
Polyamines (putrescine, spermidine and spermine) are essential for the proliferation of normal and neoplastic cells, and have been repeatedly recommended as tumor markers, with contrasting and elusive results.
S. Antoniello   +3 more
doaj   +1 more source

Polyamines in Halophytes [PDF]

open access: yesFrontiers in Plant Science, 2019
Polyamines (PAs) are related to many aspects of the plant's life cycle, including responses to biotic and abiotic stress. On the other hand, halophytic plants are useful models for studying salt tolerance mechanisms related to the adaptive strategies that these plants present in adverse environments.
Milagros Bueno, María-Pilar Cordovilla
openaire   +3 more sources

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