ELIZA

return kwic search for response out of >500 occurrences
343831 occurrences (No.54 in the rank) during 5 years in the PubMed. [cache]

12) Further, transcript levels of various steroidogenic enzyme and transcription factor genes were altered in response to EE2 and DES.

--- ABSTRACT ---

PMID:24273110 DOI:10.1002/tox.21920

2015 Environmental toxicology

* Early exposure of 17α-ethynylestradiol and diethylstilbestrol induces morphological changes and alters ovarian steroidogenic pathway enzyme gene expression in catfish, Clarias gariepinus.

- Environmental estrogens are major cause of endocrine disruption in vertebrates, including aquatic organisms. Teleosts are valuable and popular models for studying the effects of endocrine disrupting chemicals (EDCs) in the environment. In the present study, we investigated the changes caused by exposure to the synthetic estrogens 17α-ethynylestradiol (EE2 ) and diethylstilbesterol (DES) during early stages of growth and sex differentiation of air-breathing catfish, Clarias gariepinus, at the morphological, histological, and molecular levels. Catfish hatchlings, 0 day post hatch (dph) were exposed continuously to sublethal doses of EE2 (50 ng/L) and DES (10 ng/L) until 50 dph and subsequently monitored for ovarian structural changes and alteration in the gene expression of steroidogenic enzymes till adulthood. Treated fish exhibited morphological deformities such as spinal curvature, stunted growth, and yolk-sac fluid retention. In addition to ovarian atrophy, DES-treated fish showed either rudimentary or malformed ovaries. Detailed histological studies revealed precocious oocyte development as well as follicular atresia. Further, transcript levels of various steroidogenic enzyme and transcription factor genes were altered in response to EE2 and DES. Activity of the rate-limiting enzyme of estrogen biosynthesis, aromatase, in the ovary as well as the brain of treated fish was in accordance with transcript level changes. These developmental and molecular effects imparted by EE2 and DES during early life stages of catfish could demonstrate the deleterious effects of estrogen exposure and provide reliable markers for estrogenic EDCs exposure in the environment.

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(1)146 to	(14)4 proteins	(27)3 time	(40)2 following
(2)32 null	(15)4 rates	(28)3 times	(41)2 from
(3)31 and	(16)4 that	(29)3 which	(42)2 including
(4)22 of	(17)4 the	(30)2 (ABR)	(43)2 latency
(5)21 rate	(18)3 at	(31)2 (DDR)	(44)2 mediated
(6)14 was	(19)3 during	(32)2 (UPR)	(45)2 or
(7)13 in	(20)3 elements	(33)2 after	(46)2 rate)
(8)8 selection	(21)3 models	(34)2 are	(47)2 rates,
(9)7 surface	(22)3 options	(35)2 boundaries	(48)2 such
(10)6 data	(23)3 properties	(36)2 delays	(49)2 theory
(11)6 is	(24)3 strategies	(37)2 effects	(50)2 validity
(12)4 for	(25)3 style	(38)2 element	(51)2 were
(13)4 patterns	(26)3 suppression	(39)2 evaluation

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--- WordNet output for response --- =>反応, 応答, 返答, 返報, 反響, 答唱句 Overview of noun response The noun response has 7 senses (first 5 from tagged texts) 1. (11) response -- (a result; "this situation developed in response to events in Africa") 2. (11) reaction, response -- (a bodily process occurring due to the effect of some antecedent stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age") 3. (6) answer, reply, response -- (a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation; "I waited several days for his answer"; "he wrote replies to several of his critics") 4. (4) reception, response -- (the manner in which something is greeted; "she did not expect the cold reception she received from her superiors") 5. (1) response -- (a phrase recited or sung by the congregation following a versicle by the priest or minister) 6. reply, response -- (the speech act of continuing a conversational exchange; "he growled his reply") 7. response -- (the manner in which an electrical or mechanical device responds to an input signal or a range of input signals) --- WordNet end ---