1998
DOI: 10.1590/s0100-879x1998000900002
|View full text |Cite
|
Sign up to set email alerts
|

Gender differences in the activities of aspirin-esterases in rat tissues

Abstract: The activities of aspirin (acetylsalicylic acid)-esterases were measured in several tissues (liver, kidney, adrenal glands, brain and serum) from adult male and female Wistar rats. In males, both aspirin-esterase I (assayed at pH 5.5) and II (assayed at pH 7.4) activities were higher in liver homogenates when compared to females (aspirin-esterase I: males 48.9 ± 4.8 (N = 8) and females 29.3 ± 4.2 (N = 8) nmol of salicylic acid formed min -1 mg protein -1 ; aspirin-esterase II: males 41.4 ± 4.1 (N = 8) and fema… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
3
1
7

Year Published

1999
1999
2020
2020

Publication Types

Select...
9

Relationship

1
8

Authors

Journals

citations
Cited by 10 publications
(11 citation statements)
references
References 22 publications
(27 reference statements)
0
3
1
7
Order By: Relevance
“…The differences observed in this study demonstrated that sexual dimorphism in ASA-esterase activities is organ-specific and did not correspond to the sex differences already observed in rats, males showed higher enzyme activity in liver tissue and no difference in kidneys (14).…”
Section: Resultscontrasting
confidence: 95%
See 1 more Smart Citation
“…The differences observed in this study demonstrated that sexual dimorphism in ASA-esterase activities is organ-specific and did not correspond to the sex differences already observed in rats, males showed higher enzyme activity in liver tissue and no difference in kidneys (14).…”
Section: Resultscontrasting
confidence: 95%
“…ASA metabolism initiates by hydrolysis promoted by esterases, releasing salicylic acid (SA) from the ester molecule found in different tissues of several species including humans (9)(10)(11)(12)(13). We have demonstrated a gender difference in the activity of ASA-esterases in rats (14). This difference is tissue specific and male rats show higher enzyme activity in liver tissue.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, some authors have proposed that the rate of ASA hydrolysis, and particularly its part governed by specific enzymes -aspirin-esterases (EC 3.1.1.55), may also play an important role in the pharmacokinetics of Aspirin ® [252][253][254][255][256]. Aspirin esterases-ascribed gender differences in ASA hydrolysis, as well as tissue-specific differences in the activity of these enzymes have been reported by some authors [254,255,[257][258][259], and one might expect an altered aspirin-esterase activity in various clinical states as the potential factors contributing to the altered blood platelets response to the Aspirin ® therapy.…”
Section: Aspirin Resistancementioning
confidence: 99%
“…Метаболизм аспирина в организме начинается с гидролиза, стимулируемого ферментами эстеразами (аспирин-эстеразами), обнаруженными в нескольких тканях [18]. Салициловая кислота, продукт гидролиза аспирина, не обладает такими же фармакологическими свойствами, как аспирин.…”
Section: обзор литературных данныхunclassified