[Metabolic differentiation of the human longus colli muscle].

The cervical muscles have a dual postural and dynamic function, in order to ensure both the stability and the motility of the cervical spine. The functional duality together with the complexity of the cervico-cephalic system render the study of the cervical muscles difficult, and their physiology is not fully understood in humans. This study has been carried out on ten samples from the m.

[Fetal development and postnatal maturation of the longus colli muscle].

In adults, the predominant expression of a slow phenotype in the m. longus colli corresponds to its important postural function. Morphologically, there is a dispersion in fiber size predominating on the fast type 2 fibers which are significantly smaller than the slow type 1 fibers.

[From bioethics to the new technology ethics].

Just as what we can all "technoscience" is emerging in our everyday life, a reflection should be conducted concerning the implications of the scientific and technical progress within our society from now on globalised. We will tackle successively: 1. The ambiguities and paradoxes related to the development of new technologies: in the field of bioethics: artificial reproduction, mammal cloning, genetically modified organisms.

Increased cell surface expression of histocompatibility class II I-A(d) in c-fos transfected clones of the P388D1 murine macrophage cell line.

Numerous biological functions of the monocyte-macrophage lineage are affected by the presence of immunomodulators. Enhancement in transcription of c-fos has been shown in the murine P388D1 macrophage line treated by LPS, TPA, Ca++ ionophore or dibutyryl cAMP. In order to study the effects of an increased c-Fos protein level on macrophage functions, we previously have established stable c-fos-overexpressing clones in the P388D1 cell line.

[Growth of spinal muscles in the human fetus].

The spinal muscles, located in the paravertebral region, derive embryologically from the medial part of the somites. It has been shown in different animals that their differentiation occurs within the somite itself following the action of diffusible factors of chordal, neural and epiblastic origin. In these animal species, it thus appears that several factors determine the potential of migration as well as the muscular specification of the somitic cells.