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487192 occurrences (No.29 in the rank) during 5 years in the PubMed. [no cache] 500 found
31) 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.
--- ABSTRACT ---
PMID:23782143 DOI:10.1111/jpc.12302
2015 Current pharmaceutical design
* 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.
--- ABSTRACT END ---
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(1)69 in (17)3 body (33)2 by (49)2 infant
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--- WordNet output for higher --- =>幹部, おえら方 Overview of adj higher The adj higher has 2 senses (first 2 from tagged texts) 1. (10) higher -- (advanced in complexity or elaboration; "higher finance"; "higher mathematics") 2. (1) higher -- (of education beyond the secondary level; "higher education"; "higher learning") Overview of adj high The adj high has 7 senses (first 5 from tagged texts) 1. (134) high -- (greater than normal in degree or intensity or amount; "a high temperature"; "a high price"; "the high point of his career"; "high risks"; "has high hopes"; "the river is high"; "he has a high opinion of himself") 2. (51) high -- ((literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high'); "a high mountain"; "high ceilings"; "high buildings"; "a high forehead"; "a high incline"; "a foot high") 3. (10) eminent, high -- (standing above others in quality or position; "people in high places"; "the high priest"; "eminent members of the community") 4. (7) high, high-pitched -- (used of sounds and voices; high in pitch or frequency) 5. (2) high, in high spirits -- (happy and excited and energetic) 6. gamey, gamy, high -- ((used of the smell of meat) smelling spoiled or tainted) 7. high, mellow -- (slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana)) --- WordNet end ---