1,25(OH)2D3 Induced Alterations in Plasma Calcium, Inorganic Phosphate, Ultimobranhial Gland and Parathyroid Gland of the Garden Lizard, Calotes Versicolor (original) (raw)

Parathyroid glands and calcium and phosphate regulation in the lizard, Anolis carolinensis

General and Comparative Endocrinology, 1969

Serum calcium aud phosphate values were measllred iu psrsthyroidect,omized and sham-operated lizards, Anolis carolinonsis. The parathyroidectomized animals showed significant hypocalcemia and hyperphosphatemia, which were accompanied by t,etanic convulsions. Parathyroid extract reversed these symptoms in parathyroidectomized animals, eliminating tetanic seizures and returuiug the serum calcium and phosphate values to nearnormal. When similar doses of parathyroid extract. were administered to sham-operated animals, there was no significant change iu serum calcillm or phosphate coucelltrations, althollgh t,here was a trend toward hypercalremia.

Calcitonin-induced alterations to the ultimobranchial and parathyroid glands in the garden lizard Calotes versicolor

Turkish Journal of Zoology, 2011

Calotes versicolor specimens were divided into 2 groups of equal quantity (groups A and B). Group A was injected daily with 0.1 mL/50 g bw of vehicle. Group B was injected daily with 0.5 mg/50 g bw of salmon calcitonin. Lizards in each group were sacrificed 2 h after the last injection on the 1st, 3rd, 5th, 10th, and 15th day of treatment. After collection of blood samples, ultimobranchial and parathyroid glands were fixed. The plasma calcium level in the lizards treated with calcitonin decreased on day 1. This response progressed up to day 5; thereafter the level was elevated, so that on day 15 a normal plasma calcium level was achieved. No change in plasma phosphate levels from day 1 was observed following calcitonin treatment. Progressive hypophosphatemia was observed from day 3 to 5; thereafter the level tended to rise and resulted in normophosphatemia on day 15. The ultimobranchial gland in the lizards treated with calcitonin did not exhibit any histological alterations up to d...

Alterations in the ultimobranchial and parathyroid gland of the garden lizard, Calotes versicolor after prolactin administration

2009

In the present study, the effects of prolactin administration have been investigated on the plasma calcium, plasma phosphate, ultimobranchial gland, and parathyroid gland of the lizard Calotes versicolor. The lizards were procured and divided into two numerically equal groups A and B. The animals from group A were given daily intraperitoneal injections of 0.1 ml of vehicle (0.8% NaCl solution) per 50 g body weight. Lizards from group B were daily injected intraperitoneally with ovine prolactin (dissolved in 0.8% NaCl solution) in a dosage of 5 I.U. per 50 g body weight. Ten specimens from each group were anaesthetized with chloroform 4 hrs after the last injection on 1st, 3rd, 5th, 10th and 15th day of the treatment and blood samples were collected. After collection of blood, ultimobranchial and parathyroid glands were fixed. Prolactin treatment to Calotes versicolor provoked hypercalcemia and hyperphosphatemia. The ultimobranchial gland of prolactin treated lizards exhibit hyperact...

Plasma Biochemistry in Female Green Iguanas (Iguana iguana) with Calcium Metabolism Disorders

Acta Veterinaria Brno, 2003

Twenty-two female green iguanas (Iguana iguana) diagnosed with different forms of calcium metabolism disorders were classified into three groups: females with post-ovulatory egg stasis or pre-ovulatory follicle stasis (group A), females with acute hypocalcaemia (group B) and females with metabolic bone disease (group C). Group A females had the highest mean plasma values for uric acid (p < 0.05) and phosphorus (p < 0.05) compared to groups B and C. Mean values for uric acid, ALP, ALT, AST, cholesterol, calcium and phosphorus were 351.11 Ȑmol•l-1 , 0.12 Ȑkat•l-1 , 1.42 Ȑkat•l-1 , 6.81 Ȑkat•l-1 , 5.93, 3.44 mmol•l-1 and 7.45 mmol•l-1 , respectively. The phosphorus to calcium ratio was 2.2. Group B females had the highest concentration of AST (p < 0.05), the highest phosphorus to calcium ratio (p < 0.05) and the lowest plasma concentrations of total protein, glucose, cholesterol and calcium. The mean values for total protein, glucose, uric acid, ALT,