Vol. 45 Nos. 5/6 (2001) pp.695-770

September 2001

Cover legend

The cover picture illustrates the birth of root cementum. Opposite the dentin-pulp complex and apical to enamel and ameloblasts, a number of seemingly inconspicuous cells have assembled in front of the root surface, ready to deposit a mineralized tissue layer onto the already existing root dentin. This mineralized tissue layer is called cementum. It is one of four mineralized tissue types in the human body. The origins of this unusual tissue are still not completely understood. See the review paper by Diekwisch in the present issue.

Review

The developmental biology of cementum.
T G Diekwisch
Int. J. Dev. Biol. (2001) 45: 695-706

Original articles

Developmental expression of chick twist and its regulation during limb patterning.
A T Tavares, J C Izpisúja-Belmonte and J Rodriguez-León
Int. J. Dev. Biol. (2001) 45: 707-713
The CNS midline cells control the spitz class and Egfr signaling genes to establish the proper cell fate of the Drosophila ventral neuroectoderm.
J Chang, I O Kim, J S Ahn and S H Kim
Int. J. Dev. Biol. (2001) 45: 715-724
The possible contribution of pituitary hormones to the heterochronic development of gonads and external morphology in overwintered larvae of Hynobius retardatus.
K Kank and M Wakahara
Int. J. Dev. Biol. (2001) 45: 725-732
Cell-matrix interactions and cell-cell junctions during epithelial histo-morphogenesis in the developing mouse incisor.
S Kieffer-Combeau, J M Meyer and H Lesot
Int. J. Dev. Biol. (2001) 45: 733-742
Heterogeneous nuclear ribonucleoprotein complexes from Xenopus laevis oocytes and somatic cells.
A Marcu, B Bassit, R Perez and S Piñol-Roma
Int. J. Dev. Biol. (2001) 45: 743-752
A unique aged human retinal pigmented epithelial cell line useful for studying lens differentiation in vitro.
P A Tsonis, W Jang, K Del Rio-Tsonis and G Eguchi
Int. J. Dev. Biol. (2001) 45: 753-758
The neural inductive response of competent chick ectoblast decreases away from the host axis and correlates with an increased proliferative activity.
S Deshmukh, M Sonawane and S P Modak
Int. J. Dev. Biol. (2001) 45: 759-766

Short communication

The neural inductive signal is transferred to ectoblast in 1-2 h but a continued contact with mesoblast for 2-3 h is essential for neuralization in the chick area pellucida.
D Joshi-Banka, S Deshmukh and S P Modak
Int. J. Dev. Biol. (2001) 45: 767-770

The International Journal of Developmental Biology
ISSN 1696-3547 (online) and 0214-6282 (print)