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Scientists uncover secret to sharp teeth

A new research study reveals that follistatin, a gene playing a critical role in organ patterning, regulates enamel formation on mouse incisors. The asymmetric expression of follistatin accounts for the distinct patterning of enamel formation and is required for the formation of enamel-free tooth regions.

SourceCell Press·JournalDevelopmental Cell·DateNov 8, 2004

Making embryos male

Researchers identify DHH as key player in fetal Leydig cell differentiation, enabling testosterone production. The discovery provides insights into human reproductive disorders resulting from faulty sex determination pathways.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMay 31, 2002

A Versatile Signal In Vertebrate Embryogenesis: Wnt-4 Regulates Kidney Development, Sex Organ Differentiation, Neuronal Survival And Axonal Guidance

Researchers discovered Wnt-4's role in regulating kidney development through inducing tubulogenesis in isolated mesenchyme. Additionally, Wnt-4 suppresses male cell fates in female embryos, affecting sex organ differentiation. It also mediates tissue interactions involved in neuronal growth and axonal guidance.

Muscle-Bound Cells

Researchers at Weizmann Institute of Science find that muscle and tendon cells communicate through a molecular dialogue to complete their differentiation process. They isolated a gene that produces a growth factor inducing tendon cell differentiation, potentially helping understand human embryonic muscle development.