Abstract：
:This study investigated the effects of protein malnutrition and progesterone supplementation on the activities of a spectrum of lysosomal enzymes in tissue fragments of mouse liver and kidney. The working hypothesis was that the known anti-stress action of progesterone could have to do with the inhibition of lysosomes which are engaged in apoptotic and oxidative stress-induced responses. The study investigated the effects of exogenous progesterone in chronically (3 weeks) protein-malnourished (10% protein) mice on the activities of lysosomal hydrolases in liver and kidney tissues. Progesterone was injected intraperitoneally in a dose of 2 μg/g body mass dissolved in a vehicle volume of 10 μL/g body mass during the final 3 days of exposure to either low 10% or standard 16% protein content in the chow. After euthanizing the animals, tissue fragments of liver and kidney assayed for the content of lysosomal enzymes. The results demonstrated the stimulating effect of protein malnutrition on lysosomal activities. We further found, contrary to our hypothesis, that progesterone supplementation during both standard and low-protein conditions enhanced lysosomal activities, particularly acting in concert with protein malnutrition in kidney tissue. The effects were selective concerning both lysosomal enzymes and tissues and of highly variable magnitude. Nonetheless, we believe we have shown that progesterone assists protein malnutrition in stimulation of lysosomal enzymes, which suggests the possibility of the hormone's engagement in cleansing the cellular milieu in disorders consisting of accumulation of toxic molecules.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Stanisławska I,Witek B,Czarny-Działak M,Pałka-Łebek E,Łyp Mdoi
10.1007/5584_2019_425subject
Has Abstractpub_date
2019-01-01 00:00:00pages
89-95eissn
0065-2598issn
2214-8019journal_volume
1211pub_type
杂志文章abstract：:Peripheral blood lymphocytes of 29 c-ANCA positive WG patients fulfilling the ACR classification criteria were examined for the expression of various leukocyte surface molecules by dual marker cytofluorometry (FACStar, Becton Dickinson). Activation markers such as CD25, HLA-DR, CD29 and adhesion molecules (ICAM-1 and ...
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更新日期：1991-01-01 00:00:00
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更新日期：2019-01-01 00:00:00
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doi：
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pub_type： 杂志文章,评审
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更新日期：2018-01-01 00:00:00
abstract：:Steroidal glycosides of the spirostane and furostane series have been isolated from the methanolic extract of Nicotiana tabacum L. seeds by using gel filtration on silica gel and chromatography on a silica gel column. They were tentatively named nicotianosides A (1), B (2), C (3), D (4), E (5), F (6), and G (7). It ha...
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abstract：:This chapter summarized the taxonomy and typing works of Yersinia pestis since it's firstly identified in Hong Kong in 1894. Phenotyping methods that based on phenotypic characteristics, including biotyping, serotyping, antibiogram analysis, bacteriocin typing, phage typing, and plasmid typing, were firstly applied in...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-024-0890-4_3
更新日期：2016-01-01 00:00:00
