Macroscopic and Microscopic study of thymus of pig

Yugesh, K.; Jothi, S Swayam; Ranganathan, Kavitha; Jayaraman, P.; Bharath, C.; Sujatha, N

doi:10.9790/0853-13985255

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…Similar to our finding Schummer et al (1981) reported presence of considerable amount of thymic tissue in the thorax even at five years of age in goat. Yugesh et al (2014) also found thymus in pericardial mediastinum at the age of 8 to 9 months in hybrid pigs.…”

Section: Resultsmentioning

confidence: 93%

Age related gross morphological studies on the thymus in postnatal Surti goat (Capra hircus)

Chaurasia

Vyas

Menaka

et al. 2018

IJAR

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The gross studies were conducted on the thymus of 18 postnatal Surti goats. Three distinct parts of thymus were recognized viz., unpaired thoracic part, caudally situated paired body (cervical part) and right and left cranial parts from day old kid to 9 months. The cranial parts were not observed from the age of 12 months onwards. The caudal cervical part of thymus was gradually replaced by adipose tissue between 14 to 48 months, however, traces of thymus embedded within the adipose tissue was observed in cranial mediastinum even at the age of 48 months. The right limb of cervical thymus was slightly longer than the left limb in postnatal Surti goats. The maximum mean weight (26.850 ± 2.885 g) and volume (22.333 ± 2.275 cc) of thymus was recorded between 4 to 9 months. Relative weight of thymus was 0.39% in neonatal kids, which was much higher as compared to 0.015 % in adult Surti goats. Negative correlation was observed between age and weight of thymus during 12 to 48 months.

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Section: Resultsmentioning

confidence: 93%

Age related gross morphological studies on the thymus in postnatal Surti goat (Capra hircus)

Chaurasia

Vyas

Menaka

et al. 2018

IJAR

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“…This is due to the greater reduction of size of thymus due to age-related physiological involution as reported in hybrid pigs by some investigators. [12] Physiological involution is associated with decrease in the cellular components of thymus including lymphocytes and epithelio-reticular cells of the organ. [19] In this study, there was adherence of the left and right portions of the cervical thymus to form a mass and its connection beyond by a cervico-thoracic isthmus to the thoracic part of the thymus.…”

Section: Discussionmentioning

confidence: 99%

“…[8] In addition, most of the available literature is on development of the thymus in laboratory animals (rats, mice, rabbits and guinea pigs) and other exotic species and only a few domestic animals of the tropical climate have been investigated. [9,[10][11][12][13] Even so, there was little emphasis on histological changes during foetal growth. It is expected that there would be variations in structure from exotic species in the time of histological maturation of the thymus in the indigenous cross because of differing feeding, management and climatic factors in the tropical environment.…”

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confidence: 99%

Age-related morphological changes in the thymus of indigenous Large White pig cross during foetal and postnatal development

Igbokwe¹,

Ezenwaka²

2017

Anatomy

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The thymus is part of the lymphatic system that is found in all vertebrates, with the exception of the jawless fish, such as lampreys. [1] It is considered a primary organ due to its central role as being the centre for development and 'training' of T cells, which then disperse throughout the body to direct and assist with immunity. Thymus together with parathyroids is derived from single primordium in the third pharyngeal pouches of the endodermal foregut of most domestic animals. These two organs eventually migrate to their final location and separate during embry-onic development. [2] For instance, in the mouse, the primordial in the third pharyngeal pouch are completely separated into thymus and parathyroid domains at embryonic day 11.5. [3] By embryonic day 12, the thymus-parathyroid primordia have completely detached from the pharynx and started their separation into two discrete organs and their migration towards the anterior of the thoracic cavity. The thymus development is a highly dynamic and complex process, involving reciprocal tissue interactions between epithelial cells derived from endoderm of the anterior foregut and neural crest-derived mesenchyme to

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Macroscopic and Microscopic study of thymus of pig

Cited by 2 publications

References 4 publications

Age related gross morphological studies on the thymus in postnatal Surti goat (Capra hircus)

Age related gross morphological studies on the thymus in postnatal Surti goat (Capra hircus)

Age-related morphological changes in the thymus of indigenous Large White pig cross during foetal and postnatal development

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