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Comptes Rendus Biologies

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  1. Evolution of hemocyte concentration in the melanogaster subgroup species.

    Comptes Rendus Biologies 327(2):139 (2004) PMID 15060985

    We explore two possible hypotheses about the ecological factors driving the evolution of hemocyte load in insects. The first is parasite infection risk, its variability and the genetic diversity of parasites. The other supposes that all the other factors of environmental stress drive the evolution th...
  2. [Experimental study on the sensory capabilities of coral-reef fish larvae for the recognition of their settlement location].

    Comptes Rendus Biologies 327(2):159 (2004) PMID 15060987

    Some experiments in aquarium and in situ have been carried out to investigate the sensory abilities of coral reef fish larvae in the recognition of their settlement location. Ten out 12 species studied detected their settlement location due to the presence of conspecifics and not by habitat character...
  3. Ultrastructural and hormonal changes in rat cauda epididymal spermatozoa induced by Boswellia papyrifera and Boswellia carterii.

    Comptes Rendus Biologies 337(4):250 (2014) PMID 24702894

    Boswellia papyrifera and Boswellia carterii diffuses smoke polluting air that adversely affects indoor environment that certainly harm human health. Therefore, this study aims at ascertaining the effect of these plants on gonadal hormones and molecular changes in rat spermatozoa. The animals were ex...
  4. Metabolic diversity in the grains of Indian varieties of rice.

    Comptes Rendus Biologies 337(4):283 (2014) PMID 24702898

    The aim of the present work was to analyze metabolic diversity in 26 different indica varieties of rice grains. Seventy-six metabolites could be identified in the methanol extracts of each of the rice varieties analyzed by gas chromatography-mass spectrometry. These metabolites included 9 sugars/sug...
  5. Ultrastructural study of spermiogenesis in a rare desert amphisbaenian Diplometopon zarudnyi.

    Comptes Rendus Biologies 336(10):473 (2013) PMID 24246888

    Spermiogenesis, in particular the head differentiation of Diplometopon zarudnyi, was studied at the ultrastructural level by Transmission Electron Microscope (TEM). The process includes acrosomal vesicle development, nuclear elongation, chromatin condensation and exclusion of excess cytoplasm. In st...
  6. [In Process Citation].

    Comptes Rendus Biologies 336(5-6):243 (2013) PMID 23916196

  7. Hydroxycarbamide: clinical aspects.

    Comptes Rendus Biologies 336(3):177 (2013) PMID 23643402

    Due to its oral route of administration and mild toxicity profile, as well as its potent laboratory and clinical effects, hydroxyurea (or hydroxycarbamide) has been the primary focus of fetal hemoglobin (HbF) induction strategies for the treatment of children with sickle cell anemia (SCA). When admi...
  8. The New Microbiology: a conference at the Institut de France.

    Comptes Rendus Biologies 335(8):514 (2012) PMID 22938917

    In May 2012, three European Academies held a conference on the present and future of microbiology. The conference, entitled "The New Microbiology", was a joint effort of the French Académie des sciences, of the German National Academy of Sciences Leopoldina and of the British Royal Society. The orga...
  9. Dynamic topology of the cephalochordate to amniote morphological transition: A self-organized system of Russian dolls

    Comptes Rendus Biologies 334(2):91 (2011) PMID 21333940

    We are able to show that the formation of a vertebrate body follows a sequence: first, formation of dorsal folds, then head and heart as dorsal and ventral folds, and finally another dorsal fold, which eventually builds up the chorion. This order has a physical origin linked to the velocity field of...
  10. A type of unicoloniality within the native range of the fire antSolenopsis saevissima

    Comptes Rendus Biologies 334(4):307 (2011) PMID 21513900

    We conducted intraspecific aggressiveness tests in French Guiana between workers originating from 15 human-disturbed sites. We identified two “colonial groups” spread over 54 km and 12.5 km, respectively. Workers from the same group never attacked each other, but inter-group confrontatio...