Abstract：
:The cutaneous glands of the forehead and the metatarsus were studied by histological and histochemical methods and electron microscopy in adult male and female impalas in various seasons of the year. All glandular areas consist of apocrine and holocrine glands, which, however, occur in different proportions. Our findings in the apocrine gland cells suggest (1) the synthesis and exocytosis of a glycoproteinaceous secretory product stored in secretory granules, (2) typical apocrine secretion of the transformed apical cytoplasm, and (3) transepithelial fluid transport. The Golgi apparatus and apical membrane have binding sites for several lectins (PNA, HPA, RCA I, WGA). Cytokeratins 7, 14 and 19 are expressed at various intracellular localizations, suggesting an active role in the secretory mechanisms. The glands of the male forehead show marked seasonal changes in activity that are correlated with the main phases of the reproductive cycle, with the highest cellular activity occurring during the rut in April/May. The female forehead glands are only moderately developed and do not undergo seasonal changes. The metatarsal glands are of equal size in males and females and show no seasonal changes in activity. This study supports the hypothesis that (1) forehead glands in the male have a signaling role in the rut and (2) the metatarsal glands have a more general, probably social role maintaining and restoring contact between herd members.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Welsch U,van Dyk G,Moss D,Feuerhake Fdoi
10.1007/s004410051068subject
Has Abstractpub_date
1998-05-01 00:00:00pages
377-94issue
2eissn
0302-766Xissn
1432-0878journal_volume
292pub_type
杂志文章abstract：:Pituitary adenylate cyclase-activating polypeptide (PACAP) is the latest member of the vasoactive intestinal polypeptide (VIP) family of neuropeptides present in nerve fibres in many peripheral organs. Using double immunohistochemistry, with VIP as a marker for intrinsic innervation and calcitonin-gene related peptide...
journal_title：Cell and tissue research
pub_type： 杂志文章
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pub_type： 杂志文章,评审
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
pub_type： 杂志文章
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journal_title：Cell and tissue research
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更新日期：1981-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2020-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1999-11-01 00:00:00
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pub_type： 杂志文章
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更新日期：1999-08-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00213769
更新日期：1983-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-003-0761-x
更新日期：2003-07-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1983-01-01 00:00:00
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pub_type： 杂志文章
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journal_title：Cell and tissue research
pub_type： 杂志文章
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1986-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2007-09-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
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更新日期：2014-03-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：2016-10-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410051132
更新日期：1998-09-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1997-05-01 00:00:00
