scholarly journals Histomorphology of accessory sex glands in one-humped camel bull (Camelus dromedarius), Uda Rams and Red Sokoto Buck

2020 ◽  
Vol 5 (3) ◽  
pp. 23
Author(s):  
Muhammad Abdullahi Mahmud ◽  
Josephat Edoga Onu ◽  
Sani Abdullahi Shehu ◽  
Abubakar Abubakar Umar ◽  
Abubakar Danmaigoro
Keyword(s):  
Connective Tissue ◽  
Healthy Adult ◽  
The Other ◽  
Secretory Cells ◽  
Striated Muscles ◽  
Connective Tissues ◽  
Accessory Sex Glands ◽  
Ruminant Species ◽  
Secretory Glands ◽  
Apparently Healthy

Accessory sex glands of fifteen apparently healthy adult one-humped Camel bulls (OCB), Uda rams (UR) and Red Sokoto bucks (RSB) (Five per species) were collected from Sokoto metropolitan abattoir. They were then dissected out for routine histology using H&E. The size of muscularis and the number of secretory cells in the ampullary gland were observed to be highest in OCB, followed by UR and least in RSB. In the three species, the vesicular gland has tubular secretory glands and was separated into lobules by connective tissue trabeculae. Multiple acini were observed with an irregular folded lumen and were lined by simple columnar secretory cells. The prostate of OCB was observed to have highest amount of the interstitial connective tissues and rich in striated muscles which surround the lobules. Fibromuscular trabeculae extended into the parenchyma and most pronounced in OCB than other two species. The number of secretory acini appeared to be more in RSB than the other two species. The bulbourethral gland has numerous connective tissue and numerous trabeculae that originated from the capsule and divides the gland into lobules. Each lobule is populated by acini. In all the three species, the parenchyma is lobulated and consists of compound-tubulo-alveolar secretory end pieces. It was concluded that although results showed that the studied animals are different ruminant species, they exhibit some similarities and interesting histomorphological differences in their accessory sex glands compared to the majority of mammals

scholarly journals A quantitative evaluation of different regions of skin in adult Iranian native sheep

2013 ◽  
Vol 58 (No. 5) ◽  
pp. 260-263
Author(s):  
B. Mobini
Keyword(s):  
Connective Tissue ◽  
The Other ◽  
Sebaceous Glands ◽  
Lattice Line ◽  
Arrector Pili Muscle ◽  
Significant Difference ◽  
Native Sheep ◽  
One Way Anova ◽  
Quantitative Evaluations ◽  
Apparently Healthy

The present investigation aimed to evaluate the histomorphometric features of the skin of the Iranian native sheep (Bakhtiari breed). A total of 24 apparently healthy Iranian Bakhtiari sheep, aged 1–2 years were analysed and categorised on the basis of sex (12 females and 12 males). Samples were taken as small pieces from different regions of the skin, fixed and stained with H&E. The quantitative evaluations of different regions of skin were carried out using lattice line graticule (5 × 5) and light microscopy. The Student t-test and one-way ANOVA were used to analyse the data and detect significant differences. Results showed that the volume densities of different histological structures varied between sexes and among the different regions. No significant difference was observed in volume densities of sebaceous glands, arrector pili muscles and blood vessels, but the other parameters studied differed significantly among the regions. Except for the arrector pili muscle and connective tissue, the volume densities of other tissue structures were significantly affected by sex.  

scholarly journals IX. On the occurrence of glycogen as a constituent of the vesicular cells of the connective tissue of molluscs

1885 ◽  
Vol 38 (235-238) ◽  
pp. 442-445 ◽  
Keyword(s):  
Connective Tissue ◽  
Royal Society ◽  
Vascular System ◽  
The Other ◽  
Connective Tissues ◽  
The Government ◽  
Government Grant

The following results were obtained in connexion with a research “On the Connective Tissue and Vascular System of Mollusca,” on which I acted as assistant to Professor Lankester, according to the terms of a grant from the Government Grant Committee of the Royal Society: other results will be published subsequently. The connective tissues of Molluscs, as presented by Helix, Planorbis, Anodon, Cyclas, and Solen, may be divided into two main groups. In one of these the constituent cells are little advanced from their original mesoblastic condition; they have an irregular stellate form, and they are joined together by the tips of their processes. In the other variety, which will be spoken of as lamellar connective tissue, the cells are more irregular in form and their processes more attenuated, but, by the deposition of an inter-cellular ectoplasm in certain planes, the cells come to lie in plates or films.

Banded Structures in the Connective Tissue of Meningioma

1976 ◽  
Vol 34 ◽  
pp. 234-235
Author(s):  
C. N. Sun ◽  
H. J. White
Keyword(s):  
Connective Tissue ◽  
Osmium Tetroxide ◽  
Uranyl Acetate ◽  
Collagen Fibrils ◽  
Lead Citrate ◽  
Connective Tissues ◽  
Native Collagen ◽  
Routine Procedures

Previously, we have reported on extracellular cross-striated banded structures in human connective tissues of a variety of organs (1). Since then, more material has been examined and other techniques applied. Recently, we studied a fibrocytic meningioma of the falx. After the specimen was fixed in 4% buffered glutaraldehyde and post-fixed in 1% buffered osmium tetroxide, other routine procedures were followed for embedding in Epon 812. Sections were stained with uranyl acetate and lead citrate. There were numerous cross striated banded structures in aggregated bundle forms found in the connecfive tissue of the tumor. The banded material has a periodicity of about 450 Å and where it assumes a filamentous arrangement, appears to be about 800 Å in diameter. In comparison with the vicinal native collagen fibrils, the banded material Is sometimes about twice the diameter of native collagen.

Anatomie, histologie et affinités de l'appareil séricigène des Hersilia Sav. et Aud. (Araneae: Hersiliidae)

1984 ◽  
Vol 62 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Jacqueline Kovoor
Keyword(s):  
Type A ◽  
The Other ◽  
Secretory Cells ◽  
Evolutionary Stage ◽  
Type B ◽  
Outer Coat ◽  
Silk Glands ◽  
Single Protein

Although hersiliid spiders do not spin any webs, their silk glands, which belong to six types, are large and complex. Two groups of ampullate glands, one opening on the anterior spinnerets and the other on the median spinnerets, secrete two proteins each. About 180 pyriform glands are clearly bipartite. Over 200 type A aciniform glands opening on the median and posterior spinnerets are made up of three categories of secretory cells. Silk from these glands consists of two proteins (core and outer coat) joined together by an intermediary layer of acidic glycoprotein. All the 160 type B aciniform glands opening on the posterior spinnerets secrete a single protein. Fifty tubuliform glands opening on the median and posterior spinnerets produce two proteins, one of which is coloured. As in Urocteinae, long posterior spinnerets and large, numerous aciniform and tubuliform glands are correlated with swathing of prey and egg-cocoon construction. In Lycosidae and Agelenidae, the ampullate glands show the same number and distribution according to the spinnerets. However, anatomical and histochemical features of hersiliid aciniform and ampullate glands are close to those of some Araneoidea. Apart from peculiar characteristics, silk glands of Hersilia might represent an intermediate evolutionary stage towards Araneoidea.

scholarly journals Emotions, Planning and Co-production: Distrust, Anger and Fear at Participatory Boundaries in Bengaluru

Urbanisation ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 140-157
Author(s):  
Jayaraj Sundaresan ◽  
Benjamin John
Keyword(s):  
Connective Tissue ◽  
Management Practice ◽  
The Other ◽  
Planning Theory ◽  
Master Plan ◽  
Emotional Experiences ◽  
Policy Studies ◽  
Emotional Geographies ◽  
The Subject ◽  
Critical Policy

Emotions relationally and performatively constitute the very boundaries that distinguish the subject from the other(s). The urban human in India is affectively constituted by many intense emotional experiences of everyday life. Adopting a participation view of planning and drawing from Sarah Ahmed (2014, The cultural politics of emotion. Edinburgh University Press), we examine ‘what emotions do’ in the planning and participatory atmospheres (Buser, 2014, Planning Theory, vol. 13, pp. 227–243) in Bangalore. Tracing emotional content embedded in participations and non-participations, we demonstrate how distrust, anger and fear co-produced the process and outcomes of the 2031 Master Plan of Bangalore. We join the few emerging scholars that call attention to the emotional geographies of planning, particularly to be able to transform the continuing colonial urban management practice in the postcolonial world to that of planning. Planning, we argue, has to involve participation, in which emotions, we demonstrate, are the connective tissue (Newman, 2012, Critical Policy Studies, vol. 6, pp. 465–479).

Experimental Data on the Function of the Interstitium of the Gonads: Experiments with Cockerels

1947 ◽  
Vol s3-88 (2) ◽  
pp. 135-150
Author(s):  
J. W. SLUITER ◽  
G. J. VAN OORDT
Keyword(s):  
Experimental Data ◽  
Connective Tissue ◽  
Leydig Cells ◽  
Cell Types ◽  
Sex Hormone ◽  
Secretory Cells ◽  
Secretory Function ◽  
Glandular Cells ◽  
Male Sex ◽  
Secondary Function

1. The relative volumes of the testes and their components of 31 cockerels, 2-200 days old, were calculated and compared with the size of their increasing head appendages (Text-figs. 1a-d, 2); in addition, the effect of gestyl-administration on testes of cockerels of this age was investigated. 2. Several types of interstitial testis-cells could be distinguished morphologically and physiologically (Text-figs. 3-6 and Pl. 1); these cell-types were studied with different techniques and counted separately. 3. The main types of the interstitial cells are: (a) Lipoid cells, totally packed with lipoid globules. These cells, which are considered by many authors as fully developed Leydig cells, are not directly connected with the production of the male sex hormone; perhaps they have a secondary function in this respect, as cholesterolderivatives are stored in these cells (Pl. 1, Text-fig. 3a). (b) Secretory cells, characterized by the absence of lipoid vacuoles and the presence of numerous granular and filamentous mitochondria. These secretory cells, which produce the male sex hormone, can be divided into secretory cells A (Text-fig. 6a) without, and secretory cells B with, one large vacuole (Text-figs. 6b, 6c, 6d). 4. A considerable and partly intercellular storage of lipoids may take place at any age in the intertubular connective tissue (Text-figs. 3-4 and Pl. 1). 5. The number of the lipoid cells depends on the nutritive conditions of the animal and the development of its testes (Text-fig. 7). 6. In older cockerels most of the glandular cells lose their secretory function and pass over into lipoid storing cells. 7. Therefore we agree with Benoit, when he denies the occurrence of a ‘secretion de luxe’, but we cannot accept the presence of a ‘parenchyme de luxe’ in the testes of older cockerels.

scholarly journals Histological analysis of the association between formocresol and endotoxin in the subcutaneous tissue of mice

2008 ◽  
Vol 19 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Ana Teresa Sant'anna ◽  
Luis Carlos Spolidório ◽  
Lizeti Toledo Oliveira Ramalho
Keyword(s):  
Connective Tissue ◽  
Chronic Inflammation ◽  
Histological Analysis ◽  
Subcutaneous Tissue ◽  
Experimental Period ◽  
Connective Tissues ◽  
Plastic Tube ◽  
Tissue Samples ◽  
Subcutaneous Connective Tissue ◽  
Original Formula

This study performed a histological analysis of the effect of formocresol associated to endotoxin (LPS) in the subcutaneous connective tissue of mice. Ninety mice were randomly assigned to 3 groups (n=30). Each animal received one plastic tube implant containing endotoxin solution (10 mg/mL), formocresol (original formula) or a mixture of endotoxin and formocresol. The endotoxin and formocresol groups served as controls. The periods of analysis were 7, 15 and 30 days. At each experimental period, tissue samples were collected and submitted to routine processing for histological analysis. Endotoxin and formocresol produced necrosis and chronic inflammation at 7 and 15 days. At 30 days, the endotoxin group showed no necrosis, while in the formocresol group necrosis persisted. The formocresol-endotoxin association produced necrosis and chronic inflammation in the same way as observed with formocresol at all experimental periods. In conclusion, formocresol seems not to be able to inactive the toxic effects of endotoxin in connective tissues.

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