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return kwic search for studies out of >500 occurrences
532339 occurrences (No.23 in the rank) during 5 years in the PubMed. [no cache] 500 found

3) Studies have shown the repro-toxic effects of Bonny-light crude oil (BLCO).

--- ABSTRACT ---

PMID:24106129 DOI:10.1002/tox.21902

2015 Environmental toxicology

* Nigerian bonny-light crude oil induces alteration in testicular stress response proteins and caspase-3 dependent apoptosis in albino wistar rats.

- In the past few decades, there has been much concern about the adverse health effects of environmental contaminants in general and Crude Oil in particular around the Niger Delta region of Nigeria where all the crude Oil exploration is taking place. Studies have shown the repro-toxic effects of Bonny-light crude oil (BLCO). However, the insight into the mechanisms of gonadal toxicity induced by BLCO is not well known. In this study, we sought to elucidate the mechanism(s) underpinning the gonadal effects within hours of exposure to BLCO. Experimental rats were divided into five groups of four each. Animals were orally administered with a single dose of BLCO (800 mg/kg body weight) and killed at 0, 6, 12, 24, and 72 h post-treatment. The levels and time-course of induction of stress response proteins and apoptosis-related proteins like cytochorome C, caspase 3 and procaspase 9, Fas-FasL, NF-kB and TNF-α were determined to assess sequential induction of apoptosis in the rat testis. DNA damage was assessed by TUNEL assay. Administration of BLCO resulted in a significant increase in the levels of stress response proteins and apoptotis- related proteins as early as 6 h following exposure. Time-dependent elevations in the levels of the proteins were observed. The DNA damage was measured and showed time-dependent increase in the TUNEL positive cells of testicular cells. The study demonstrates induction of testicular apoptosis in adult rats following exposure to a single dose of BLCO.

--- ABSTRACT END ---

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(3)32 of	(16)6 is	(29)3 however,	(42)2 investigating
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(5)26 on	(18)5 suggest	(31)3 reported	(44)2 it
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(7)17 were	(20)4 as	(33)3 which	(46)2 provide
(8)16 and	(21)4 demonstrated	(34)2 about	(47)2 published
(9)15 to	(22)4 evaluating	(35)2 also	(48)2 regarding
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(12)8 that	(25)4 show	(38)2 demonstrating	(51)2 used
(13)8 using	(26)3 based	(39)2 has	(52)2 was

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--- WordNet output for studies --- Overview of noun study The noun study has 10 senses (first 8 from tagged texts) 1. (90) survey, study -- (a detailed critical inspection) 2. (17) study, work -- (applying the mind to learning and understanding a subject (especially by reading); "mastering a second language requires a lot of work"; "no schools offer graduate study in interior design") 3. (6) report, study, written report -- (a written document describing the findings of some individual or group; "this accords with the recent study by Hill and Dale") 4. (6) study -- (a state of deep mental absorption; "she is in a deep study") 5. (6) study -- (a room used for reading and writing and studying; "he knocked lightly on the closed door of the study") 6. (3) discipline, subject, subject area, subject field, field, field of study, study, bailiwick -- (a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings") 7. (2) sketch, study -- (preliminary drawing for later elaboration; "he made several studies before starting to paint") 8. (1) cogitation, study -- (attentive consideration and meditation; "after much cogitation he rejected the offer") 9. study -- (someone who memorizes quickly and easily (as the lines for a part in a play); "he is a quick study") 10. study -- (a composition intended to develop one aspect of the performer's technique; "a study in spiccato bowing") Overview of verb study The verb study has 6 senses (first 6 from tagged texts) 1. (73) analyze, analyse, study, examine, canvass, canvas -- (consider in detail and subject to an analysis in order to discover essential features or meaning; "analyze a sonnet by Shakespeare"; "analyze the evidence in a criminal trial"; "analyze your real motives") 2. (17) study -- (be a student; follow a course of study; be enrolled at an institute of learning) 3. (15) study, consider -- (give careful consideration to; "consider the possibility of moving") 4. (13) learn, study, read, take -- (be a student of a certain subject; "She is reading for the bar exam") 5. (5) study, hit the books -- (learn by reading books; "He is studying geology in his room"; "I have an exam next week; I must hit the books now") 6. (2) study, meditate, contemplate -- (think intently and at length, as for spiritual purposes; "He is meditating in his study") --- WordNet end ---