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378430 occurrences (No.48 in the rank) during 5 years in the PubMed. [no cache] 500 found

223) The first was immunohistochemistry to detect vessels lined by human endothelial cells and filled with red blood cells.

--- ABSTRACT ---

PMID:23955835 DOI:10.1002/term.1803

2015 Journal of tissue engineering and regenerative medicine

* Rapid onset of perfused blood vessels after implantation of ECFCs and MPCs in collagen, PuraMatrix and fibrin provisional matrices.

- We developed an in vivo vascularization model in which human endothelial colony-forming cells (ECFCs) and human mesenchymal progenitor cells (MPCs) form blood vessel networks when co-injected (ECFC + MPC) into nude mice in rat tail type I collagen, bovine fibrin or synthetic peptide PuraMatrix matrices. We used three approaches to determine the onset of functional vascularization when ECFC + MPC suspended in these matrices were implanted in vivo. The first was immunohistochemistry to detect vessels lined by human endothelial cells and filled with red blood cells. The second was in vivo vascular staining by tail vein injection of a mixture of Ulex europaeus agglutinin I (UEA-I), a lectin specific for human endothelium, and Griffonia simplicifolia isolectin B4 (GS-IB4 ), a lectin specific for rodent endothelium. The third approach employed contrast-enhanced ultrasound to measure the perfusion volumes of implants in individual animals over time. Human endothelial-lined tubular structures were detected in vivo on days 1 and 2 after implantation, with perfused human vessels detected on days 3 and 4. Contrast-enhanced ultrasound revealed significant perfusion of ECFC + MPC/collagen implants on days 1-4, at up to 14% perfused vascular volume. ECFC + MPC implanted in fibrin and PuraMatrix matrices also supported perfusion at day 1, as assessed by ultrasound (at 12% and 23% perfused vascular volume, respectively). This model demonstrates that ECFC + MPC suspended in any of the three matrices initiated a rapid onset of vascularization. We propose that ECFC + MPC delivered in vivo provide a means to achieve rapid perfusion of tissue-engineered organs or for in situ tissue repair.

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[frequency of next (right) word to first]

(1)32 time	(19)5 meaningful	(37)2 5	(55)2 marriage
(2)21 report	(20)4 line	(38)2 6	(56)2 meta-analysis
(3)11 and	(21)3 14	(39)2 72	(57)2 mitochondrial
(4)11 to	(22)3 3	(40)2 application	(58)2 months
(5)10 time,	(23)3 complete	(41)2 approach	(59)2 myocardial
(6)9 year	(24)3 described	(42)2 article	(60)2 postnatal
(7)8 2	(25)3 in	(43)2 attempt	(61)2 presented
(8)8 molar	(26)3 it	(44)2 choice	(62)2 relapse
(9)8 reported	(27)3 order	(45)2 clinical	(63)2 smear
(10)8 step	(28)3 postoperative	(46)2 component	(64)2 stage
(11)8 we	(29)3 record	(47)2 comprehensive	(65)2 step,
(12)7 case	(30)3 sequenced	(48)2 concern	(66)2 test
(13)6 determined	(31)3 the	(49)2 course	(67)2 that
(14)6 group	(32)3 treatment	(50)2 demonstration	(68)2 therapy
(15)6 study	(33)3 two	(51)2 few	(69)2 trimester
(16)5 dose	(34)3 was	(52)2 intentions	(70)2 trimester,
(17)5 evidence	(35)2 null	(53)2 introduction	(71)2 using
(18)5 generation	(36)2 30	(54)2 left

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--- WordNet output for first --- =>初めて, 最初の, 第一の, はじめに, 最初, 第1 Overview of noun first The noun first has 6 senses (first 4 from tagged texts) 1. (9) first, number one -- (the first or highest in an ordering or series; "He wanted to be the first") 2. (5) first, number one, number 1 -- (the first element in a countable series; "the first of the month") 3. (1) beginning, commencement, first, outset, get-go, start, kickoff, starting time, showtime, offset -- (the time at which something is supposed to begin; "they got an early start"; "she knew from the get-go that he was the man for her") 4. (1) first base, first -- (the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate)) 5. first, first-class honours degree -- (an honours degree of the highest class) 6. first gear, first, low gear, low -- (the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving) Overview of adj first The adj first has 6 senses (first 5 from tagged texts) 1. (232) first -- (preceding all others in time or space or degree; "the first house on the right"; "the first day of spring"; "his first political race"; "her first baby"; "the first time"; "the first meetings of the new party"; "the first phase of his training") 2. (61) first, 1st -- (indicating the beginning unit in a series) 3. (4) inaugural, initiative, initiatory, first, maiden -- (serving to set in motion; "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage") 4. (4) beginning, first -- (serving to begin; "the beginning canto of the poem"; "the first verse") 5. (3) first, foremost, world-class -- (ranking above all others; "was first in her class"; "the foremost figure among marine artists"; "the top graduate") 6. first -- (highest in pitch or chief among parts or voices or instruments or orchestra sections; "first soprano"; "the first violin section"; "played first horn") Overview of adv first The adv first has 4 senses (first 4 from tagged texts) 1. (58) first, firstly, foremost, first of all, first off -- (before anything else; "first we must consider the garter snake") 2. (40) first, for the first time -- (the initial time; "when Felix first saw a garter snake") 3. (9) first -- (before another in time, space, or importance; "I was here first"; "let's do this job first") 4. (4) foremost, first -- (prominently forward; "he put his best foot foremost") --- WordNet end ---