Immunological Aspects of Reproduction in Mammals by D. B. Crighton

By D. B. Crighton

Show description

Read or Download Immunological Aspects of Reproduction in Mammals PDF

Best mammals books

Primate Communities

Even if the habit and ecology of primates has been extra completely studied than that of the other crew of mammals, there were only a few makes an attempt to match the groups of residing primates present in assorted components of the realm. In Primate groups, a world staff of specialists compares the composition, habit, and ecology of primate groups in Africa, Asia, Madagascar, and South the USA.

Human Interphase Chromosomes: Biomedical Aspects

This name will specialize in the learn of human interphase chromosomes and its relation to healthiness and illness. Orchestrated association and human genome functionality in interphase nuclei on the chromosomal point were again and again proven to play an important position in various easy organic tactics concerned about cognizance and inheritance of genetic info inside of and among species.

The Behavioural Biology of Dogs

Written via specialists in numerous components, this publication provides an up to date account of the behavioral biology of canines. cut up in 3 elements, the publication addresses the categorical facets of behavioral biology. the 1st half bargains with the evolution and improvement of the puppy, while the subsequent half offers with simple facets of puppy habit.

Reproductive biology and phylogeny of Cetacea: whales, dolphins, and porpoises

The order Cetacea contains a few awesome species, representing essentially the most developed creatures that inhabit this earth. but, in addition they signify a bunch of species for which a lot is still unknown. There are over eighty species of cetaceans composed of porpoises, dolphins and whales. This quantity represents the newest of released and formerly unpublished information about cetacean reproductive biology and phylogeny.

Extra resources for Immunological Aspects of Reproduction in Mammals

Sample text

Currently promising fields of enquiry centre on the induction of active or passive immunity to either gamete antigens or reproductive h o r m o n e s . Judicious selection of target 48 Immunological aspects of reproduction—an overview antigens should m a k e it possible to suppress reproduction with minimal disturbance of other physiological processes. Active immunization with spermatozoal antigen results in infertility in a variety of experimental animals, and in man (see under A u t o i m m u n i t y ) .

1). In many cases, the effects are demonstrable only in vitro and their biological significance is dubious. Effects local to the placenta and its environs are perhaps m o r e likely than systemic ones and, of course, m o r e difficult to establish. Trophoblast is the source of most of the putative immunoregulatory substances, a m o n g them h C G and progesterone. h C G preparations inhibit lymphocyte proliferation and induce suppressor cell formation, although the effects may be due to contaminants in the preparations used, rather than h C G itself ( H a m m a r s t r ö m , Fuchs and Smith, 1979; Fuchs et al, 1982).

A l t h o u g h in the rete testis the efferent barrier is less effective, even downstream of the rete antibody concentrations are a minute fraction of those in blood (Weininger et al, 1982). A l t h o u g h antigen sequestration is the primary m o d e of protection against a u t o i m m u n e sensitization, the barrier may be supplemented by ancillary mechanisms. Local i m m u n e responses might limit egress of autoantigen, while any antigen that does escape might be eliminated either by natural antispermatozoal antibody (Hancock, 1978) or by non-antibody spermagglutinins (Boettcher, 1974).

Download PDF sample

Rated 4.26 of 5 – based on 35 votes