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- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -
kwic search for significant out of >500 occurrences
583352 occurrences (No.14 in the rank) during 5 years in the PubMed. [cache]
272) In males, CRS induced significant increases in both ulcer number and ulcer severity; while the females though showed a trend towards increase in both the parameters, the extent of changes was far less than in males.
* Gender Based Differences in Stress-induced Gastric Ulcer Formation and its Regulation by Nitric Oxide (NO): An Experimental Study.
- A variety of physiological and pharmacological factors are known to influence stress responses. Cold restraint stress (CRS) induced gastric ulcerogenesis in both the sexes but such ulceration was found to be markedly higher in male than in female rats. In males, CRS induced significant increases in both ulcer number and ulcer severity; while the females though showed a trend towards increase in both the parameters, the extent of changes was far less than in males. Pre-administration of the NO mimetic, L-Arginine (500 and 1000 mg/kg), prior to CRS, dose dependently decreased ulcer number and severity in male rats. In female rats, L-Arginine also induced a gastric cytoprotective effect during CRS but to a much lesser extent. On the other hand, inhibition of NO synthesis by LNAME (25 and 50 mg/kg) further aggravated such stress ulcerogensis in both males and females, with aggravations being more extensive in males. CRS induced ulcerogenesis was associated with reductions in levels of brain and plasma NOx and GSH levels while MDA levels were elevated in both male and female rats- the magnitude of these changes being higher in males than in females. In female rats, pretreatment with formestane (aromatase inhibitor) but not tamoxifen (estrogen receptor blocker) aggravated stress ulcer formation as compared to vehicle treated CRS exposed rats. Formestane pretreatment also induced greater suppressions in brain NOx and GSH and elevations in brain MDA, as compared to vehicle treated CRS rats. These results indicate that estrogen and its interactions with oxidative stress markers and NO plays a key role in the gender based differences in stress induced gastric ulcerogenesis. It may be speculated that, in males, CRS induces greater reductions in brain NO and enhancement in oxidative injury resulting in greater severity of gastric ulceration. On the other hand, greater resistance of females to ulcerogenic effects of CRS may be due to the protection conferred by estrogen and this effect seems to be related to interactions with brain NO.
=>意義深い, 重大な, 意味のある, 意味ありげな, 重要な
Overview of adj significant
The adj significant has 4 senses (first 4 from tagged texts)
1. (18) significant, important -- (important in effect or meaning; "a significant change in tax
laws"; "a significant change in the Constitution"; "a significant contribution"; "significant
details"; "statistically significant")
2. (9) significant, substantial -- (fairly large; "won by a substantial margin")
3. (3) significant -- (too closely correlated to be attributed to chance and therefore indicating a
systematic relation; "the interaction effect is significant at the .01 level"; "no significant
difference was found")
4. (2) meaning, pregnant, significant -- (rich in significance or implication; "a meaning look")
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PubMed database: last updated on 2020-02-18 (c)sirasawa 2019