摘要:

The present study elucidates the morphology of encapsulated receptors in human skin by means of immunohistochemistry for the recently characterized neurospecific marker protein gene product 9.5, in comparison with neuronal specific enolase and S-100 protein. Only two types of corpuscles are identified, Meissner’s corpuscles and simple coiled corpuscles. Moreover, this investigation reveals that though regional specialization may exist with regard to the encapsulated receptor density, the comparison of hairy and nonhairy skin does not reveal important difference

ISSN:1422-6405    

DOI:10.1159/000147328

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Nerve growth factor (NGF) receptor-like immunoreactivity has been demonstrated in the normal human adult spinal cord using the monoclonal antibody ME20.4. Intense immunoreactivity was associated with fibres and terminals in the substantia gelatinosa. In lamina IX the neuropil demonstrated punctate staining, the motor neurons themselves being negative. At thoracic levels occasional neurons of the intermediolateral column cell group were NGF receptor positive. Fine axonal and punctate terminal reactivity was observed in the gracile fasciculus, corresponding to axons in transverse section. Similar, though slightly less dense immunoreactivity was observed in the cuneate fasciculus. The demonstration of NGF receptor immunoreactivity may provide a useful marker of sensory innervation in the human spinal cord.

ISSN:1422-6405    

DOI:10.1159/000147329

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Changes in juxtaglomerular (JG; renin-containing) cells in experimental hydronephrosis 1 month after ureteral ligation were investigated with immunoelectron-microscopical techniques. Two types of granules, electron dense (D) and lucent (L), were observed. D type granules were labeled more intensely with gold particles than those of L type. Granules intermediate between D and L types and exocytosis of D types were observed. In the cells containing D types exclusively, gold particles were restricted to the granules, whereas in the cells containing both D and L type granules, the particles were scattered throughout the cytoplasmic cytosol. The authors discuss the mechanisms of renin release in JG cells.

ISSN:1422-6405    

DOI:10.1159/000147330

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

An active immunological response by the female to mating and pregnancy is important, if not essential, to successful reproduction. Alloantigens which have been demonstrated on spermatozoa include histocompatibility antigens. In the enigmatic success of the fetal allograft, the conceptus survives owing to failure of the mother either to initiate or complete the process of rejection. In this study, AO(RT1u/AgB2) female rats were caged with male rats of the same strain. Observations were obtained from the first 5 days of their postcoital period, identifying lymphoid tissue changes which are due to the presence of the ejaculate and early products of conception in the female reproductive tract. A significant increase in intrathymic proliferation by day 3 is thought to be a hormonal effect induced by the cervical stimulation at mating. The postcoital exodus of lymphocytes from the thymus is possibly in response to coitus and induced by the seminal plasma to safeguard the implanting conceptus.

ISSN:1422-6405    

DOI:10.1159/000147331

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:1422-6405    

DOI:10.1159/000147332

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:1422-6405    

DOI:10.1159/000147333

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:1422-6405    

DOI:10.1159/000147317

出版商:S. Karger AG    

年代:1992

数据来源: Karger