What's the difference between blastema and blastematic?
Blastema
Definition:
(n.) The structureless, protoplasmic tissue of the embryo; the primitive basis of an organ yet unformed, from which it grows.
Example Sentences:
(1) They are capable of synthesis and accumulation of glycogen and responsible for its transfer to sites of more intense metabolism (growth, bud, blastema).
(2) Blastemas implanted with 2 dorsal root ganglia and simultaneously denervated 14 days after amputation exhibited control levels of cell cycle activity 6 days later, as measured by 3H-thymidine pulse labeling.
(3) A search for specific proteins involved in newt limb regeneration, using monoclonal antibodies against forelimb blastemas, led to the detection of an antigen in the regenerate epithelium.
(4) Between different tumours, heterogeneity in the degree of epithelial differentiation in the blastema was found.
(5) After amputation, limbs of both early and late stages form a regenerative blastema and support lens formation from the outer cornea.
(6) More difficult are clear therapeutic recommendations for the very rare forms of endocrinically active genital tumors which stem from sex cords or which are composed of different components of the complex ovarian blastema.
(7) By 15 days, a dense accumulation of blastema cells is present beneath the apical cap, and these cells are preferentially oriented in a circumferential direction.
(8) Not all cells of the adult newt blastema are randomly distributed and actively progressing through the cell cycle.
(9) Thus, it appears that denervation of medium-bud-stage limb blastemas promotes the lengthening of G1 and premature exiting of cells from the cycle into the G0-1 phase.
(10) Computer-assisted morphometric analysis showed only minor differences between proximal tubular cells from 18-day embryos and tubular cells from 7-day cultures of blastema taken from 11-day embryos.
(11) In the absence of skin, epidermal wound healing failed to occur and blastemas could not develop.
(12) At the contact between the ureter and the mesonephretic blastema, the cells of the primary ureter have special characteristics: existence of an abundant "coat", numerous "villous processes" and a dense network of fibres of collagen.
(13) Serial angiograms and tissue biopsies documented the transition from nodular renal blastema to Wilms' tumor.
(14) After amputation, NvKII mRNA is expressed both in proximal and distal blastemas, although at higher levels distally, indicating that this keratin is regeneration associated.
(15) Since others have shown that denervation at the time of amputation blocks subsequent mitosis in internal stump tissues yet allows normal levels of DNA synthesis for eight days, we conclude that X-irradiation and denervation prevent cell division in potential blastema cells by different mechanisms.
(16) In a study of 71 female foetuses, gonadal blastema was observed at 1.5 cm crown rump length (CRL).
(17) Furthermore, staining with three fucose-binding lectins revealed that the linkage between terminal alpha-fucose residues to the constituent oligosaccharide chains varied between epithelial cells, blastema and stroma.
(18) However, in differentiation phase blastemas, laminin immunoreactivity was concentrated in specific locations.
(19) The fasciculata cells are the direct continuation of the subcapsular blastema.
(20) These results indicate that the limb tissues of the early stage limbs contain non-neural inductive factors at a low level and that after limb amputation and blastema formation the level of these factors becomes high enough to promote lens formation from implanted cornea, even after denervation.
Blastematic
Definition:
(a.) Connected with, or proceeding from, the blastema; blastemal.
Example Sentences:
(1) We propose that this prostatic primary, nonteratomatous Wilms' tumor can arise from persistent, nephrogenic, blastematous rests in the prostate, in relation to the Wolffian duct system.
(2) The lectin histochemical staining patterns of nine surgically resected Wilms' tumors (WIT) (five classical, one rhabdomyomatous, one monomorphic tubular, and two blastematous) and four WIT heterotransplants in nude mice were compared with those of six normal adult and fetal kidneys using 11 biotinylated and fluorochrome-labeled lectins representing a spectrum of sugar specificities.
(3) This observation recalls the Masson's proposed neuroectodermal histogenesis of Wilms tumor; however the currently accepted metanephrogenic blastematous origin is not reconsidered.
(4) Microscopic examination disclosed blastematous, epithelial, and stromal elements characteristic of Wilms' tumor.
(5) The renal cystadenoma must be regarded as a hamartoma developed from some metanephrogenic blastematous areas excluded from the normal embryogenetic process.
(6) Whereas areas of neural differentiation and occasional argyrophilic cells in cases of Wilms' tumor have been previously reported, the unique characteristic in this case was the extent of the neuroendocrine differentiation, as shown by a strong Grimelius stain of over 90% of the blastematous cells.
(7) Microscopically, the stromal cells resembled blastematous cells seen in Wilms tumor.
(8) In addition, limited reactivity with the neuroblastoma antibodies was seen in blastematous parts of Wilms' tumour, duct-like structures in a hepatoblastoma, and in tumour cells in a few undifferentiated myelo- and lympho-proliferative lesions.
(9) Among the animal tumors, the porcine and canine nephroblastomas showed immunoreactivity for cytokeratin and vimentin in epithelial and blastematous areas, respectively.
(10) Histologically, it consisted of a triphasic tumor; tubular and glomeruloid structures were identified, among prominent blastematous sheets and in an edematous stroma.
(11) Of 60 surgically removed multicystic, dysplastic kidneys examined for the presence of nodular renal blastema only 1 (2 per cent) had blastematous elements.
(12) It derives from the sam blastematic mass as the muscles of mastication, and it is innervated by a branch of the n. mandibularis.
(13) A common histologic feature was the presence of small, primitive cells with blastematous qualities separated by an uncommitted stroma.
(14) The mesenchymal components of blastomas and fetal lung showed smooth muscle, myofibroblastic, and blastematous differentiation.
(15) Histologically, the majority of the tumours (73 per cent) exhibited the classical triphasic morphological features of nephroblastoma (Wilms' tumour) with varying proportions of epithelial (glomeruloid and tubular structures), stromal (fibrous tissue, smooth muscle, cartilage) and blastematous elements.
(16) The blastematous elements demonstrated vimentin and keratin coexpression in four cases, providing some support for the contention that pluripotential blastema may give rise to the epithelial and mesenchymal elements of the distal lobule.
(17) Some axons storing dcv contact blastematic cells and other nerve terminals show a plasma membrane incomplete or broken.
(18) Grossly polypoid on a broad stalk, the neoplasm consisted of a mixture of blastematous, mesenchymal, and epithelial elements.
(19) Microscopically, the tumor masses were hypercellular and anaplastic without definite blastematous elements.
(20) The original WT and first passage xenograft showed a blastematous histology, while the second passage xenograft showed epithelioid differentiation and tubule formation.