The 2XXX Al alloys are characterized by their superior mechanical properties resulting from alloying elements and precipitation hardening treatments. AA2524-T3 alloy was developed to replace the AA2024-T3 in aerospace industry. However, both present many intermetallic particles (IMCs) microstructure, this is main reason for high susceptibility localized corrosion (such as pitting stress crackin...

In a seemingly wasteful fashion, the thyroid gland focuses its effort into secreting an inactive version of thyroid hormone T4. In fact, a hormone, from the Greek word for impulse, is a biologically active molecule, so in the case of thyroid hormone, the actual active hormone is that of the triply iodinated derivative, T3. To successfully produce T3, the human thyroid processes about 1000 nmol ...

OBJECTIVE The aim was to study whether functional impairment of the pituitary, thyroid, testes, and adrenal glands of humans occupationally exposed to mercury (Hg) vapour can be shown as a result of accumulation of Hg in these glands. METHODS Basal concentrations of thyrotrophin (TSH), prolactin, free thyroxine (free T4), free 3,5,3'-triiodothyronine (free T3), antibodies against thyroperoxid...

Thyroid hormone regulates metabolism through transcriptional and posttranscriptional mechanisms. The integration of these mechanisms in heart is poorly understood. Therefore, we investigated control of substrate flux into the citric acid cycle (CAC) by thyroid hormone using retrogradely perfused isolated hearts (n = 20) from control (C) and age-matched thyroidectomized rats (T). We determined s...

This study was aimed to assess the impact of dietary energy density on liver health parameters, carcass characteristics and performance of broilers exposed to heat stress. 600 Cobb male chicks were assigned to five dietary treatments and four replicates. Chicks were fed diet based on corn as main energy source and energy level based on Cobb standard (C), corn based diet with 3% lesser energy th...

BACKGROUND Tocotrienols (T3) and tocopherols (T), both members of the natural vitamin E family have unique biological functions in humans. T3 are detected in circulating human plasma and lipoproteins, although at concentrations significantly lower than α-tocopherol (α-T). T3, especially α-T3 is known to be neuropotective at nanomolar concentrations and this study evaluated the postprandial fate...

Iodine deficiency has been considered in Iran since 20 years ago and has been acknowledged recently. We studied iodine deficiency disorders in 1618 Neishabourian students. 60% of children had palpable and 2.5% had visible goiters. Height and weight of these children were lower than International and Tehranian children but higher than Isfahanian children. Hormone studies showed increased T4...

L-Triiodothyronine (T3) stimulates DNA synthesis and replication of cultured GC cells, a T3-responsive growth hormone (GH)-secreting cell line. To determine whether T3 stimulates secretion of an autocrine growth factor, we compared the growth-promoting activity of medium conditioned by T3-stimulated and T3-depleted cells to that of unconditioned medium. Addition of polyclonal rabbit anti-T3 ser...

The aims of our study were to investigate association some effect pro- inflammatory and antiinflammatory cytokines before after surgical patients through serum concentration of, TNF-?,IL-2, IL-4, IL-6, IL-10. 35 blood samples collected from (17 male, 18 female)withgeneral anesthesia Al-Diwaniyah Hospital, Iraq. Samples taken surgery (Tpre), the firstday) T1), third day) T3 (and fifth day (T5) o...

In order to investigate the effect of 3,5,3'L-triiodothyronine (T3) administration on thyroid hormone concentrations in serum, thyroxine (T4), T3, 3,3',5'L-triiodothyronine (reverse T3, rT3) and thyroid stimulating hormone (TSH) concentrations in serum were determined before and after T3 administration in 10 hypothyroid patients maintained on constant doses of T4. Ten hypothyroid patients given...