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532339 occurrences (No.23 in the rank) during 5 years in the PubMed. [no cache] 500 found

136) Organ bath studies of the neourethras confirmed both physiological contractility and the presence of neurotransmitters.

--- ABSTRACT ---

PMID:23172803 DOI:10.1002/term.1647

2015 Journal of tissue engineering and regenerative medicine

* Penile urethra replacement with autologous cell-seeded tubularized collagen matrices.

- Acellular collagen matrices have been used as an onlay material for urethral reconstruction. However, cell-seeded matrices have been recommended for tubularized urethral repairs. In this study we investigated whether long segmental penile urethral replacement using autologous cell-seeded tubularized collagen-based matrix is feasible. Autologous bladder epithelial and smooth muscle cells from nine male rabbits were grown and seeded onto preconfigured tubular matrices constructed from decellularized bladder matrices obtained from lamina propria. The entire anterior penile urethra was resected in 15 rabbits. Urethroplasties were performed with tubularized matrices seeded with cells in nine animals, and with matrices without cells in six. Serial urethrograms were performed at 1, 3 and 6 months. Retrieved urethral tissues were analysed using histo- and immunohistochemistry, western blot analyses and organ bath studies. The urethrograms showed that animals implanted with cell-seeded matrices maintained a wide urethral calibre without strictures. In contrast, the urethras with unseeded scaffolds collapsed and developed strictures. Histologically, a transitional cell layer surrounded by muscle was observed in the cell-seeded constructs. The epithelial and smooth muscle phenotypes were confirmed with AE1/AE3 and α-actin antibodies. Organ bath studies of the neourethras confirmed both physiological contractility and the presence of neurotransmitters. Tubularized collagen matrices seeded with autologous cells can be used successfully for long segmental penile urethra replacement, while implantation of tubularized collagen matrices without cells leads to poor tissue development and stricture formation. The cell-seeded collagen matrices are able to form new tissue, which is histologically similar to native urethra.

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(2)47 null	(15)7 should	(28)3 for	(41)2 indicated
(3)32 of	(16)6 is	(29)3 however,	(42)2 investigating
(4)26 are	(17)6 we	(30)3 performed	(43)2 involving
(5)26 on	(18)5 suggest	(31)3 reported	(44)2 it
(6)19 in	(19)5 the	(32)3 since	(45)2 or
(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
(10)10 showed	(23)4 from	(36)2 can	(49)2 targeting
(11)8 revealed	(24)4 indicate	(37)2 concerning	(50)2 tested
(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 ---