In a group of families in northern Sweden, a mutation in the ENAM gene (predicted to produce a highly truncated protein) results in the local hypoplastic form of autosomal dominant amelogenesis imperfecta. In this study, sections of deciduous teeth from members of 3 of these families were examined by scanning electron microscopy (SEM) and the enamel mineral was analysed by energy dispersive X-r...

Ameloblasts are ectoderm-derived cells that produce an extracellular enamel matrix that mineralizes to form enamel. The development and use of immortalized cell lines, with a stable phenotype, is an important contribution to biological studies as it allows for the investigation of molecular activities without the continuous need for animals. In this study we compare the expression profiles of e...

Whales in the suborder Mysticeti are filter feeders that use baleen to sift zooplankton and small fish from ocean waters. Adult mysticetes lack teeth, although tooth buds are present in foetal stages. Cladistic analyses suggest that functional teeth were lost in the common ancestor of crown-group Mysticeti. DNA sequences for the tooth-specific genes, ameloblastin (AMBN), enamelin (ENAM) and ame...

Latar belakang dari penelitian ini adalah rendahnya keterampilan pemecahan masalah sosial siswa SDN 180 Prakarsa Nugraha pada kelas IV. Penelitian bertujuan untuk mendeskripsikan proses pelaksanaan pembelajaran dengan menggunakan model resolusi konflik IPS di Kelas IV Sekolah Dasar serta peningkatan setelah Dasar. Metode yang digunakan yakni Tindakan desain Kemmis dan Mc Taggart terdiri enam si...

In this study, an attempt has been made to identify expression-based gene biomarkers that can discriminate early and late stage of clear cell renal cell carcinoma (ccRCC) patients. We have analyzed the gene expression of 523 samples to identify genes that are differentially expressed in the early and late stage of ccRCC. First, a threshold-based method has been developed, which attained a maxim...

Phylogenetic Inference Morphological character data for living and fossil mysticetes were sourced from Marx and Fordyce’s comprehensive treatment, with the following edits and additions. All undescribed or unidentified fossil taxa (n=13) were removed, as were the 3 odontocete taxa. We retained the archaeocete Zygorhiza kochii. We also replaced the composite taxon Eubalaena spp. with coded chara...