Biomaterial Database

[The 32P-incorporation into nucleic acids and adenosine phosphates of the rat brain after acute and chronic influence of meclofenoxate (author's transl)]. 1976

K Kanig, and Z S Tencheva, and J Nitschki, and W H Dingler

Beta-Dimethylaminoethyl-p-chlorophenoxyacetate hydrochloride (meclofenoxate, Helfergin) was adminstered orally in dosages of 300 mg/kg 3 times during an 18-h period. The incorporation rate of the total and cytoplasmic RNA as well as of ATP, ADP and AMP decreased. Contradictory results were obtained after a 16-day treatment with orally 300 mg/kg per day: while the 32P-incorporation rate of the cytoplasmic RNA and the 3 adenosine phosphates increased, the nuclear RNA showed a correspondent diminishing. No changes of the ATP content could be observed in any group. The differences between the acute and chronic experiments could be explained by a different excitation of the animals and by the very different dosages. The increased 32P-incorporation into the cytoplasmic and into the adenosine phosphates in the chronic experiments are explained by a stimulation of the pentose phosphate shunt which yields mainly the phosphate group for the synthesis of AMP.

UI	MeSH Term	Description	Entries
D010428	Pentosephosphates
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
D002467	Cell Nucleus	Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D002504	Meclofenoxate	An ester of DIMETHYLAMINOETHANOL and para-chlorophenoxyacetic acid.	Centrophenoxine,Atsefen,Cerutil,Cetrexin,Helfergin,Meclofenoxate Hydrochloride
D003593	Cytoplasm	The part of a cell that contains the CYTOSOL and small structures excluding the CELL NUCLEUS; MITOCHONDRIA; and large VACUOLES. (Glick, Glossary of Biochemistry and Molecular Biology, 1990)	Protoplasm,Cytoplasms,Protoplasms
D005260	Female		Females
D006016	Glycolates	Derivatives of ACETIC ACID which contain an hydroxy group attached to the methyl carbon.	2-Hydroxyacetates,Glycolate Ethers,Hydroxyacetate Ethers,Hydroxyacetates,Hydroxyacetic Acids,2 Hydroxyacetates,Acids, Hydroxyacetic,Ethers, Glycolate,Ethers, Hydroxyacetate
D000227	Adenine Nucleotides		Adenine Nucleotide,Adenosine Phosphate,Adenosine Phosphates,Nucleotide, Adenine,Nucleotides, Adenine,Phosphate, Adenosine,Phosphates, Adenosine
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012313	RNA	A polynucleotide consisting essentially of chains with a repeating backbone of phosphate and ribose units to which nitrogenous bases are attached. RNA is unique among biological macromolecules in that it can encode genetic information, serve as an abundant structural component of cells, and also possesses catalytic activity. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)	RNA, Non-Polyadenylated,Ribonucleic Acid,Gene Products, RNA,Non-Polyadenylated RNA,Acid, Ribonucleic,Non Polyadenylated RNA,RNA Gene Products,RNA, Non Polyadenylated