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Tumour necrosis factor alpha and interleukin 2 in normal and infected human seminal fluid.
The presence of cytokines such as the tumour necrosis factor alpha (TNF alpha) and interleukin 2 (IL2) in human spermatozoa is confirmed and their usefulness as indicators of reproductive pathology is investigated.
Immunolocalization of type IV collagen and laminin during rat gonadal morphogenesis and postnatal development of the testis and epididymis
Both type IV collagen and laminin immunostaining paralleled during ontogenesis at the light-microscope level during rat gonadal morphogenesis and postnatal development of the testis and epididymis.
Electron microscope radioautographic evidence of in vivo androgen-binding protein internalization in the rat epididymis principal cells.
It is concluded that the internalization of ABP could not be a nonspecific fluid-phase endocytosis but should be dependent on its interaction with the apical plasma membrane of the principal cell.
Ultrastructural study on transcapillary exchanges in the developing telencephalon of the chicken.
Immunocytochemical localization of angiotensinogen in rat liver and kidney
The localization of these granular formations under the brush border suggests that angiotensinogen is reabsorbed from the glomerular ultrafiltrate rather than synthesized in the kidney.
Evaluation of human sperm acrosome reaction and viability by flow cytometry.
- R. Fierro, M. Béné, B. Foliguet, G. Faure, G. Grignon
- Biology, ChemistryItalian journal of anatomy and embryology…
A quantitative procedure developed to evaluate the acrosomal reaction and vitality of human spermatozoa, with three color staining simultaneously, finds the WGA-GB24 association shows an independent behavior and this may depend on the fact that WGA binds to the cytoplasmic membrane of human semen and GB24 antibody bind inner acrosome membrane.
[The pores of Kohn in pulmonary alveoli].
- C. Desplechain, B. Foliguet, E. Barrat, G. Grignon, F. Touati
- MedicineBulletin europeen de physiopathologie…
The alveolar apertures can explain the specific propagation of some epitheliotropical peripheral cancers (bronchiolo-alveolar carcinoma) and the pore of Kohn is one of the first signs of parenchymatous senescence of the pulmonary alveolus.
Laminin ultrastructural immunolocalization in rat testis during ontogenesis
The synthesis of one of the main glycoproteins of the basement membrane, the laminin, was demonstrated by ultrastructural immunolocalization during rat foetal and postnatal development of the testis by detecting its presence in Sertoli cells and cells around the seminiferous tubules which will transform later into peritubular cells.
[Type III pneumocyte. The alveolar brush-border cell in rat lung. Study by transmission electron microscopy (author's transl)].
Different appearances of the cell body of the type III pneumocyte suggest on the other hand contractile properties of a not well known determinism, and the hypothesis of this cell playing an alveolar chemoreceptive part is confronted.
[Carbonic anhydrase activity in the epididymis of the developing rat].
The enzyme, carbonic anhydrase (CA), has been studied by an histochemical procedure during the postnatal development of the rat epididymis. Its activity first appeared at Day 14 in the early…