two experiments were conducted to evaluate the effects of thyroxin in ovo injection and post hatch arginine feed supplementation on performance and cold tolerance acquisition in broilers. in experiment 1, a total of 2400 hatchings eggs were randomly assigned to four treatments: positive controls (intact or pricked with a needle), negative control (intact egg), injected with distilled water and ...

Corticosteroid-binding globulin (CBG) is a serine proteinase inhibitor (serpin) family member that transports glucocorticoids in blood and regulates their access to target cells. The 1.9A crystal structure of rat CBG shows that its steroid-binding site resembles the thyroxin-binding site in the related serpin, thyroxin-binding globulin, and mutagenesis studies have confirmed the contributions o...

Our aim was to test the efficacy of 131-I therapy (RIT) using recombinant human TSH (rhTSH) in patients with differentiated thyroid carcinoma (DTC) in whom endogenous TSH stimulation was not an option due to the poor patient's physical condition or due to the disease progression during L-thyroxin withdrawal. The study comprised 18 patients, who already have undergone total or near-total thyroid...

In this chemiluminescence enzyme immunoassay for thyroxin, glucose oxidase (EC 1.1.3.4) is the enzyme label and the bound and free fractions are separated by the double-antibody solid-phase technique. In the assay of enzyme activity, hydrogen peroxide generated from glucose substrate is measured by its chemiluminescence reaction with bis(2,4,6-trichlorophenyl)oxalate and 8-anilino-1-naphthalene...

The aims of this study were estimation of thyroxin status in dogs infected with B. canis, and determination of the association between azotaemia and concentrations of total thyroxin (TT4) and free thyroxin (FT4) in canine babesiosis. Concentrations of TT4 and FT4 were determined using an immunoassay in 23 dogs infected with B. canis (nine azotaemic dogs and 14 non-azotaemic dogs). Mann-Whitney ...

OBJECTIVE Overt and subclinical hypothyroidism are risk factors for atherosclerosis. It is unclear whether thyroid hormone levels within the normal range are also associated with atherosclerosis measured by coronary artery calcium (CAC). APPROACH AND RESULTS We conducted a cross-sectional study of 41 403 apparently healthy young and middle-aged men and women with normal thyroid hormone levels...

ghrelin increases food intakes and body weight. bombesin decreases food intakes and inhibits the stimulatory effect of ghrelin on food intakes. thyroid hormones have a crucial role in the regulation of body weight and yet the effect of bombesin on thyroid axis activity is not fully clear. therefore, the goal of this study was to determine the effect of different doses of ghrelin or bombesin on ...