Histochemical study of the interstitial cells in the cattle ovary

Guraya, Sardul S.

doi:10.1159/000143141

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…This is also in agreement with the histological observations of some previous in¬ vestigators (see Brambell 1956;Harrison 1962;Mossman et al 1964). By using frozen sections submitted to the histochemical techniques for lipids, the presence of interstitial gland tissue of thecal and stromal origin has been clearly shown even in the ovaries of those mammalian species (rhesus monkey, woman and cow) (Guraya 1966a(Guraya , 1967a(Guraya , 1968a, in which its presence was previously denied by most of the workers using histological techniques (see Brambell 1956;Harri¬ son 1962). The histochemical findings of Baillie et al (1966) on the developing mouse ovary have revealed the differentiation of stromal mesenchymal cells into the »primary type« of interstitial tissue.…”

Section: Origin Distribution and Developmentsupporting

confidence: 90%

“…In the light of recent studies, the former suggestion seems to be more plausible ). The hypertrophy (or differentiation) of interstitial gland cells is closely accompanied by an increase in their blood vascularity (Guraya 1966a(Guraya , 1967a(Guraya , 1968a. This is strongly supported by the electron microscope studies of Stegner (1970) and Stegner 8c Onken (1971) who have also found that the undifferentiated stromal cells in the vicinity of the capillaries become transformed into interstitial cells of the mouse ovary and which are considered to play an important role in steroid synthesis.…”

Section: Origin Distribution and Developmentmentioning

confidence: 79%

“…However, the degree of its development and distribution in the ovaries of different species of mammals varies widely (Guraya 1966a(Guraya ,a, 1967a(Guraya ,a, 1968a(Guraya ,a,c, 1972aGuraya 8c Greenwald 1964aBramball 1956;Mossman et al 1964); its distribution and development also vary greatly with the ovarian cycle in the same species; the size of the individual gland cells also varies considerably from species to species and with the reproductive cycle. These differences in the development of interstitial gland cells probably represent responses to quite different stimuli of a hormonal nature during the oestrous cycle and pregnancy.…”

Section: Origin Distribution and Developmentmentioning

confidence: 99%

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Interstitial Gland Tissue of Mammalian Ovary

Guraya

1973

Acta Endocrinologica

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1. The interstitial gland cells of the mammalian ovary originate from the theca interna and surrounding stromal elements of degenerating follicles and are simultaneously vascularized, and hypertrophied (or luteinized). They form a specific feature of the mammalian ovary, and are invariably present in the ovaries of young and adult mammals. The interstitial gland cells show several variations in their amount and distribution in different mammals. They also show cycles of abundance and differentiation correlated with the reproductive age and ovarian cycles. 2. The interstitial gland cells possess the cytological, histochemical and biochemical features of well-established steroid-secreting cells. These features are: a) abundant diffuse lipids (lipoproteins) in the cytoplasm, which apparently derive from the abundant ultrastructural agranular endoplasmic reticulum; b) well-developed cell organelles, especially the pleomorphic mitochondria with complex system of internal cristae that are predominantly tubular; c) the development of diffuse lipoproteins (or membranes of smooth reticulum), closely accompanied by the appearance of enzyme activities indicative of the biosynthesis of steroid hormones; d) under certain physiological situations, stored lipid droplets in the cytoplasm, which consist of phospholipids, triglycerides, and cholesterol and/or its esters; and e) the capacity to form steroid hormones in biochemical experiments in vitro and in vivo. The physiological significance of these various features, which do not show any appreciable development in the compressed, relatively embryonic stromal elements of the general ovarian stroma, has been discussed in relation to steroid hormone synthesis in the interstitial gland cells. In general, the results of the cytological, histochemical and biochemical studies agree well with each other and are compatible with their endocrine function.3. After stimulation with endogenous gonadotrophins, the interstitial gland cells undergo conspicuous cytological, histochemical and biochemical changes, which have been correlated to the accelerated production of steroid hormones.4. The formation of androgenic steroids seems to be the principal product of interstitial gland cells; in some mammalian species, oestrogens and progestins are also formed. 5. Further comparative studies on the interstitial gland cells in different mammalian species are suggested to determine the nature and physiological significance of their steroid secretions under different physiological situations.6. Interstitial gland cells of different mammals show several variations with regard to their permanency, apparently depending on some gonadotrophic stimulation. After persisting for some time, they gradually lose their cytoplasm and lipids, and ultimately revert to the relatively embryonic, compressed stromal tissue from which they are originally derived. This cytoplasmic change is closely accompanied by the loss of blood vascularity, which may be providing the gonadotrophic hormone and other nutrient substances ...

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Section: Origin Distribution and Developmentsupporting

confidence: 90%

Section: Origin Distribution and Developmentmentioning

confidence: 79%

Section: Origin Distribution and Developmentmentioning

confidence: 99%

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Interstitial Gland Tissue of Mammalian Ovary

Guraya

1973

Acta Endocrinologica

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“…The origin of these structures remains controversial. They were believed to be originating either by the invagination of the germinal epithelium (Simpson and Van Wagenen, 1953;Greenwald, 1964a, 1964b;Motta, 1974) or from the hypertrophy of granulosa cells of the primordial follicles and small preantral follicles, whose ova were lost by atresia (Guraya, 1967a(Guraya, , 1968a. In H. speoris the origin of epithelial cords were observed to be of dual nature that is, from the germinal epithelium by its in growth and from the persisting granulosa of atretic primordial follicles and small preantral follicles.…”

Section: Discussionmentioning

confidence: 99%

Variations in the epithelial cords of the ovaries of a microchiropteran bat, Hipposideros speoris (Schneider) during reproductive cycle: An enzymic approach

Sastry¹,

Pillai²

2013

J. Cell Anim. Biol.

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The ovaries of Hipposideros speoris were studied histologically and histochemically for the enzymes, 3β-hydroxysteriod dehydrogenase (3β-HSDH), Succinic dehydrogenase (SDH) and lipid from July 2005 to 2006. The interstitial cells or so called "epithelial cords" showed variations in their distribution, morphology, enzymic and their association with other ovarian structures. These cords appear to be formed in the ovarian cortex by the transformation of granulosa of the primordial follicles and small preantral follicles whose ova regress and disappear. Mostly these cords were conspicuous, hypertrophied, abundant and in clusters or in zones occupying a major portion of the cortex during 4 to 5 months of gestation and also during lactation. Both histological and histochemical studies revealed their significance as steroidogenic cells. The frequency with which these structures were observed during pregnancy made it obligatory to conclude that they have a certain significant role in ovarian physiology in overtaking the function of corpus luteum after its regression.

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Morphology of ovarian changes in the garden lizard, Calotes versicolor

Varma

1970

Journal of Morphology

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Ovarian changes during the reproductive cycle of the oviparous garden lizard (Calotes versicolor) are described. It ovulates from last week of June to first week of September but most often in July and August when the monsoon occurs. The number of eggs ovulated vary from 10 to 32. After ovulation, the ovaries are reduced in size. From October to May, the ovaries contain small pre-vitellogenic follicles, which increase in size in June when most of yolk deposition occurs. Several nuclei are seen in the ooplasm of pre-vitellogenic follicles; they are finally absorbed before yolk deposition starts. Follicular atresia generally occurs in follicles with polymorphic granulosae, in post-ovulatory ovaries. Presumably interstitial gland cells are formed by the hypertrophy of the theca interna cells of atretic follicles. Pre-ovulatory follicles have highly vascularized thecae and invaginations of the follicular epithelium. After ovulation, the follicle cells hypertrophy to form the luteal cell mass filling the follicular cavity. Fibroblasts, which appear to arise from the theca interna, invade the luteal cell mass and form septa. Capillaries occur in the luteal cell mass. J. MORPH., 132: 195-210. 195

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Histochemical study of the interstitial cells in the cattle ovary

Cited by 8 publications

References 2 publications

Interstitial Gland Tissue of Mammalian Ovary

Interstitial Gland Tissue of Mammalian Ovary

Variations in the epithelial cords of the ovaries of a microchiropteran bat, Hipposideros speoris (Schneider) during reproductive cycle: An enzymic approach

Morphology of ovarian changes in the garden lizard, Calotes versicolor

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