A Morphological, Histological and Histochemical Study of the Sexual Segment of the Kidney of the Male Chamaeleo calyptratus (Veiled Chameleon)

Alshehri, Mohammed Ali; Al‐Doaiss, Amin A.

doi:10.4067/s0717-95022021000401200

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“…The Chamaeleonidae lizard reptile family is distinguished by morphological features like as a prehensile tail, independently spinning eyeballs, a ballistic tongue, and the ability to change colors. Chameleons or chamaeleons (family Chamaeleonidae) are a group of saurian that have piqued the interest of biologists, veterinarians, and herpetology enthusiasts due to their unique anatomical and physiological properties, as well as their aesthetics, as of 2015, there were 202 species described (Glaw, 2015;Melero Jurado, 2020;Al-Shehri, M. A. & Al-Doaiss, 2021).…”

Section: Introductionmentioning

confidence: 99%

Histomorphological, Histochemical and Ultrastructural Studies on the Healthy Liver of Yemen Veiled Chameleon (Chamaeleo calyptratus) in Southern Saudi Arabia

Al-Doaiss,

Alshehri,

Shati

et al. 2023

Int. J. Morphol.

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The livers of reptiles are being studied as a model for the link between the environment and hepatic tissue. There have been few investigations on the histology of reptile livers, and very few or no studies have examined the histology of liver of veiled chameleon (Chamaeleo calyptratus). This paper describes the histomorphological, histochemical and ultrastructural characterization of the liver of veiled chameleons in southern Saudi Arabia. Seven Chamaeleo calyptratus were captured in the summer season in Abha City, Aseer region, southern Saudi Arabia. Chamaeleon liver samples were processed for histomorphology, histochemistry and ultrastructure analyses. Morphologically liver of Chamaeleo calyptratus was observed as a large dark brown organ with lighter speckles, which represent melanin deposits. It located at the ventral part of abdominal cavity forward of the stomach. Its dimensions approximately were 3.7 × 2 cm. The liver was a bilobed organ divided into two lobes, right and left lobes. The right one was bigger than the others. The gallbladder was well developed and had an elongated shape, situated between the two lobes and contained the bile for the digestion. Microscopically, the liver was found to be covered by a thick layer of connective tissue, which formed the hepatic capsule. Hepatic parenchyma probably appeared in cross sections as hepatic glandular-like alveoli "acini" or follicular structures with various diameters, each acinus contains approximately four to six hepatocytes, surrounded by sinusoidal capillaries filled with abundant melanomacrophages, which are absent in birds and mammals. Melanomacrophages are common in the hepatic parenchyma's perisinusoidal areas, particularly near portal spaces. Hepatocytes are polyhedral or pyramidal with and mostly contained large, rounded nuclei mostly peripherally located, with prominent dark oval nucleoli. Some of nuclei are eccentric or central position. The cytoplasm appeared spongy or vacuolated and more eosinophilic when stained by hematoxylin-eosin and strongly reactive to PAS staining technique, indicating abundant glycogen content. The reticular fibers that surround hepatocytes, blood arteries, and sinusoids supported the hepatic parenchyma. The blood sinusoids are seen interspersed among hepatocytes of varying sizes. The sinusoidal lumen was bordered by flattened endothelial cells and includes elliptical nucleated erythrocytes and liver macrophages as phagocytes, which are also known as Kupffer cells. Branches of the portal vein, hepatic artery, small bile duct, and lymph vessels were detected in the hepatic portal area "tract" or triad which made up of connective. Hematopoietic tissue was observed in subcapsular region and portal triads. Ultrastructurally, the hepatocyte appeared polyhedric containing a single large rounded basal or eccentric vesicular nucleus with prominent nucleolus. Extensive network of rough endoplasmic reticulum (RER) often arranged in an array parallel to the nuclear membrane with many mitochondria, and Golgi apparatus were de...

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Section: Introductionmentioning

confidence: 99%

Histomorphological, Histochemical and Ultrastructural Studies on the Healthy Liver of Yemen Veiled Chameleon (Chamaeleo calyptratus) in Southern Saudi Arabia

Al-Doaiss,

Alshehri,

Shati

et al. 2023

Int. J. Morphol.

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A Morphological, Histological and Histochemical Study of the Sexual Segment of the Kidney of the Male Chamaeleo calyptratus (Veiled Chameleon)

Abstract: AL-SHEHRI, M. A. & AL-DOAISS, A. A.A morphological, histological, and histochemical study of the sexual segment of the kidneyof the male Chamaeleo calyptratus (veiled chameleon).

Cited by 1 publication

References 20 publications

Histomorphological, Histochemical and Ultrastructural Studies on the Healthy Liver of Yemen Veiled Chameleon (Chamaeleo calyptratus) in Southern Saudi Arabia

Histomorphological, Histochemical and Ultrastructural Studies on the Healthy Liver of Yemen Veiled Chameleon (Chamaeleo calyptratus) in Southern Saudi Arabia

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