dosage that ensures maternal serum free thyroxine (FT4) levels at or moderately above the upper limit of the reference range is reported to be appropriate for fetal euthyroid status [ 2 ]. This recommendation was incorporated into the 2017 American
Hiroyuki Iwaki, Kenji Ohba, Eisaku Okada, Takeshi Murakoshi, Yumiko Kashiwabara, Chiga Hayashi, Akio Matsushita, Shigekazu Sasaki, Takafumi Suda, Yutaka Oki, and Rieko Gemma
Linde A.C. De Grande, Katleen Van Uytfanghe, and Linda M. Thienpont
Dear Editor, The classical log-linear relationship between thyroid-stimulating hormone (TSH) and free thyroxine (FT 4 ) generally reflects on the reasonable correlation between both hormones, while particularly emphasizing that small
Laura P.B. Elbers, Hjalmar A. Boon, Maaike I. Moes, Bregje van Zaane, Dees P.M. Brandjes, Eric Fliers, Harry R. Büller, Suzanne Cannegieter, and Victor E.A. Gerdes
thromboembolism (VTE) or bleeding. Higher plasma levels of free thyroxine (FT 4 ) have been associated with an increased VTE risk [ 1 , 2 , 3 ]. Conversely, lower levels of FT 4 seem to be associated with a bleeding tendency [ 4 , 5 ]. An observational cohort
Salvatore Benvenga, Roberto Vita, Flavia Di Bari, Poupak Fallahi, and Alessandro Antonelli
What Is Known about This Topic? • Nephrotic syndrome may trigger the onset of hypothyroidism or aggravate preexisting hypothyroidism, with subsequent increased requirements of the L -thyroxine dose because of urinary loss of free and protein
Beatrice Engelmann, Julia Bischof, Anne-Luise Dirk, Nele Friedrich, Elke Hammer, Thomas Thiele, Dagmar Führer, Georg Homuth, Georg Brabant, and Uwe Völker
.e. thyroid-stimulating hormone (TSH)], free triiodothyronine (fT 3 ) and free thyroxine (fT 4 ) were measured using immunoassays. Sex hormone-binding globulin (SHBG) as well as FIX and FXIII subunit B concentrations were determined in EDTA plasma using a
Lars C. Moeller, Yaw Appiagyei-Dankah, Birgit Köhler, Heike Biebermann, Onno E. Janssen, and Dagmar Führer
Introduction In serum, thyroid hormone (TH) is mainly bound to transport proteins. The major proportion of circulating TH, 75% of T 4 and 70% of T 3 is bound to thyroxine-binding globulin [TBG; HUGO Gene Nomenclature Committee approved name
Wilmar M. Wiersinga, Leonidas Duntas, Valentin Fadeyev, Birte Nygaard, and Mark P.J. Vanderpump
12 Saravanan P, Visser TJ, Dayan CM: Psychological well-being correlates with free thyroxine but not free 3,5,3′-triiodothyronine levels in patients on thyroid hormone replacement. J Clin Endocrinol Metab 2006; 91:3389–3393. 10.1210/jc.2006
Jan Calissendorff, Emil Mikulski, Erik H. Larsen, and Marika Möller
was confirmed by clinical symptoms and blood tests, decreased TSH, elevated free thyroxine (FT 4 ) and free triiodothyronine (FT 3 ) and the presence of TRAb. In 2 patients in whom TRAb were absent, an increased even distribution on a radionuclide scan
Saeed Sohrabpour, Farrokh Heidari, Ebrahim Karimi, Reza Ansari, Ardavan Tajdini, and Firouzeh Heidari
ultrasonographies showed bilateral hypoechoic areas in thyroid gland which was suggestive of SAT. Laboratory results showed mildly elevated free thyroxine and free tri-iodothyronine with undetectable thyrotropin. C-reactive protein levels were also slightly elevated
Veeravich Jaruvongvanich, Anawin Sanguankeo, and Sikarin Upala
. Eligibility Criteria Our inclusion criteria were (1) published observational studies that addressed the association between NAFLD and thyroid hormone levels (free triiodothyronine [FT 3 ], free thyroxine [FT 4 ], or thyroid-stimulating hormone [TSH]) in
