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 ...

BACKGROUND Exclusive feeding of an iodine-restricted diet has been proposed as a method for controlling clinical manifestations of hyperthyroidism in hyperthyroid cats. OBJECTIVES To determine the effect of feeding an iodine-restricted diet on TT4 concentrations and clinical signs in cats with spontaneous hyperthyroidism. ANIMALS Forty-nine client-owned cats with spontaneous hyperthyroidism...

Exposure to certain perfluoroalkyl acids (PFAAs) can have considerable effects on the endocrine and immune systems, although such remain largely uncharacterized in wildlife. Using an apex avian predator, we investigated possible relationships of thyroid hormones (THs), specifically free (F) total (T) thyroxine (FT4; TT4) triiodothyronine (FT3; TT3), expression immune-related microRNA biomarker ...

To clarify the clinical value of serums total triiodothyronine (TT3), total thyroxine (TT4), free triiodothyronine (FT3), and free thyroxine (FT4) and provide a more eligible and economic strategy to assess thyroid function. A total of 2,673 participants (500 patients with hyperthyroidism, 500 patients with hypothyroidism, and 1,673 healthy people) were involved in our study. Serums TT3, TT4, F...

BACKGROUND Developing infants may be especially sensitive to hormone disruption from chemicals including polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs). OBJECTIVE We investigated relationships between cord serum levels of PCBs and PBDEs and thyroid hormones measured in cord blood serum and neonatal blood spots. METHODS We measured PCBs and PBDEs, thyrotropin (TS...

This study was to determine the daily fluctuation of serum thyroxine (tT4), free thyroxine (fT4), 3,5,3'-triiodothyronine (T3) concentrations in healthy dogs. Thyroid function of these dogs was evaluated on the basis of results of TSH response test. Samples for the measurement of serum tT4, fT4, and T3 concentrations were obtained at 3- hour intervals from 8 : 00 to 20 : 00. Serum tT4, fT4, and...

Maternal thyroid function was investigated in 32 pre-eclamptic women and 10 normal pregnant women in their third trimester. Serum total tri-iodothyronine (TT3) and total thyroxine (TT4) were decreased significantly (P < 0.001) and TSH was increased significantly (P < .001) in pre-eclampsia as compared to normal pregnancy. There was no influence of parity and maternal age on thyroid functions. T...

OBJECTIVE To determine the thyroid status of Basenji dogs in Australia. METHODS Jugular or cephalic venipuncture blood samples were taken from 113 Basenji, comprising 47 males, 5 castrates, 48 entire and 13 spayed bitches, and sent on ice in plain and EDTA tubes to a single laboratory to determine haematocrit and serum concentrations of total thyroid hormone (thyroxine, TT4), thyroid-stimulat...

Plant organs change their growth direction in response to reorientation relative to the gravity vector. We explored the role of ethylene in Arabidopsis (Arabidopsis thaliana) root gravitropism. Treatment of wild-type Columbia seedlings with the ethylene precursor 1-aminocyclopropane carboxylic acid (ACC) reduced root elongation and gravitropic curvature. The ethylene-insensitive mutants ein2-5 ...