Parcourir médecine/sciences 1993 par titre
Voici les éléments 173-192 de 260
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L'origine et l'évolution de la reproduction animale
(John Libbey Eurotext, Montrouge, 1993)Sexually reproducing organisms have alternating haploid and diploid phases. Each phase is connected to the other through meiosis and fertilization or conjugation. This article provides a tentative explanation for several ... -
Origine et progression des tumeurs épithéliales : vers les mécanismes cellulaires et moléculaires
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Un outil de cartographie, la TACF (Telomere Associated Chromosome Fragmentation)
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Où en est le programme Génome russe ?
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Un pas de plus vers l'utilisation thérapeutique des facteurs neurotrophiques
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Pathogénie du psoriasis
(John Libbey Eurotext, Montrouge, 1993)Psoriasis is characterized by epidermal hyperplasia associated with altered keratinocyte maturation and inflammatory phenomena. Keratinocyte proliferation might be due to extrinsic proliferative signals possibly delivered ... -
Pathologie acquise de la jonction dermo-épidermique
(John Libbey Eurotext, Montrouge, 1993)The dermoepidermal junction (DEJ) is a supramolecular structure between the epidermis and the dermis. Its importance in the integrity of the skin is evidenced by the numerous inherited and acquired diseases which affect ... -
Pathologie thyroïdienne morphologique radio-induite par de faibles doses d'irradiation cervicale : apport d'une enquête épidémiologique de cohorte.
(John Libbery Eurotext, Montrouge, 1993)Thyroid morphological exploration was carried out on 396 patients who were recalled because their thyroid gland had been exposed during angiomas irradiation in childhood 11-43 years before (median, 22 years). Among these ... -
La PCR quantitative : un nouvel outil pour l'analyse médicale.
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PcrBase : un logiciel d'aide à la PCR en interface avec les banques d'acides nucléiques.
(John Libbey Eurotext, Montrouge, 1993)PCR, polymerase chain reaction, is a powerful technique of nucleic sequence amplification. It requires to choose two oligonucleotides at each extremity of the segment to be amplified. These oligonucleotides must be carefully ... -
Penser la cellule en 1993
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Une percée décisive dans la génétique épidémiologique de la maladie d'Alzheimer : le rôle de l'apolipoprotéine E.
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La persistance virale: un agent étiologique possible pour les maladies autoimmunes.
(John Libbery Eurotext, Montrouge, 1993)There is increasing evidence that persistent viruses may be at the root of at least some human autoimmune diseases. It is difficult to establish a relationship between viral persistence and autoimmune disease, because ... -
Les personnes âgées dans la Communauté européenne : population et emploi.
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Perspectives ex vivo et in vivo pour la thérapie génique, de la transfection sélective à l'aide de complexes plasmide-polylysine ciblés
(John Libbey Eurotext, Montrouge, 1993)Gene therapy will be an ideal method when it is possible to transfer DNA in cells with a great efficacy and an absolute safety in vivo. Along with viral carriers which are efficient but may not be strictly safe, non viral ... -
Petite taille et disomie uniparentale du chromosome 7
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La périnatalité en France : 20 ans d'évolution
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Les phosphodiestérases des nucléotides cycliques
(John Libbey Eurotext, Montrouge, 1993)Cyclic nucleotide phosphodiesterases (PDE) are classified into five families (PDE I to V) according to their primary sequence, their substrate specificities and their sensitivities to different modulators. PDE I, PDE II ... -
Place des oncogènes et des facteurs de croissance dans la physiopathologie du psoriasis
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Une pompe pour la sécrétion proximale de protons
(John Libbey Eurotext, Montrouge, 1993)The proximal tubule of the nephron is responsible for considerable bicarbonate reabsorption. This transport is achieved indirectly through net secretion of protons. Three mechanisms are capable of H+ secretion in the tubular ...