2015 Journal of tissue engineering and regenerative medicine
* Effects of chitosan and bioactive glass modifications of knitted and rolled polylactide-based 96/4 L/D scaffolds on chondrogenic differentiation of adipose stem cells.
- The performance of biodegradable knitted and rolled 3-dimensional (3D) polylactide-based 96/4 scaffolds modified with bioactive glass (BaG) 13-93, chitosan and both was compared with regard to the viability, proliferation and chondrogenic differentiation of rabbit adipose stem cells (ASCs). Scaffold porosities were determined by micro-computed tomography (μCT). Water absorption and degradation of scaffolds were studied during 28-day hydrolysis in Tris-buffer. Viability, number and differentiation of ASCs in PLA96/4 scaffolds were examined in vitro. The dimensions of the scaffolds were maintained during hydrolysis and mass loss was detected only in the BaG13-93 containing scaffolds. ASCs adhered and proliferated on each scaffold type. Cell aggregation and expression of chondral matrix components improved in all scaffold types in chondrogenic medium. Signs of hypertrophy were detected in the modified scaffolds but not in the plain PLA96/4 scaffold. Chondrogenic differentiation was most enhanced in the presence of chitosan. These findings indicate that the plain P scaffold provided a good 3D-matrix for ASC proliferation whereas the addition of chitosan to the PLA96/4 scaffold induced chondrogenic differentiation independent of the medium. Accordingly, a PLA96/4 scaffold modified by chitosan could provide a functional and bioactive basis for tissue-engineered chondral implants.
=>に番号をつける, 数, 番号, 総数, 若干, 多数, 曲, 過ごす, 達する, 番号を唱える
Overview of noun number
The noun number has 11 senses (first 9 from tagged texts)
1. (131) number, figure -- (the property possessed by a sum or total or indefinite quantity of units
or individuals; "he had a number of chores to do"; "the number of parameters is small"; "the figure
was about a thousand")
2. (63) number -- (a concept of quantity involving zero and units; "every number has a unique
position in the sequence")
3. (5) act, routine, number, turn, bit -- (a short theatrical performance that is part of a longer
program; "he did his act three times every evening"; "she had a catchy little routine"; "it was one
of the best numbers he ever did")
4. (5) phone number, telephone number, number -- (the number is used in calling a particular
telephone; "he has an unlisted number")
5. (2) numeral, number -- (a symbol used to represent a number; "he learned to write the numerals
before he went to school")
6. (2) issue, number -- (one of a series published periodically; "she found an old issue of the
magazine in her dentist's waiting room")
7. (1) number -- (a select company of people; "I hope to become one of their number before I die")
8. (1) number, identification number -- (a numeral or string of numerals that is used for
identification; "she refused to give them her Social Security number")
9. (1) number -- (a clothing measurement; "a number 13 shoe")
10. number -- (the grammatical category for the forms of nouns and pronouns and verbs that are used
depending on the number of entities involved (singular or dual or plural); "in English the subject
and the verb must agree in number")
11. number -- (an item of merchandise offered for sale; "she preferred the black nylon number";
"this sweater is an all-wool number")
Overview of verb number
The verb number has 6 senses (first 3 from tagged texts)
1. (6) total, number, add up, come, amount -- (add up in number or quantity; "The bills amounted to
$2,000"; "The bill came to $2,000")
2. (2) number -- (give numbers to; "You should number the pages of the thesis")
3. (1) number, list -- (enumerate; "We must number the names of the great mathematicians")
4. count, number -- (put into a group; "The academy counts several Nobel Prize winners among its
members")
5. count, number, enumerate, numerate -- (determine the number or amount of; "Can you count the
books on your shelf?"; "Count your change")
6. number, keep down -- (place a limit on the number of)
--- WordNet end ---