Amniotic fluid paraoxonase-1 activity, thyroid hormone concentration and oxidant status in neural tube defects

2016 ◽  
Vol 42 (9) ◽  
pp. 1080-1085
Author(s):  
Sibel Sak ◽  
Elif Agacayak ◽  
Senem Yaman Tunc ◽  
Mehmet Sait Icen ◽  
Fatih Mehmet Findik ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Amniotic Fluid ◽  
Neural Tube ◽  
Neural Tube Defects ◽  
Paraoxonase 1 ◽  
Hormone Concentration ◽  
Thyroid Hormone Concentration ◽  
Oxidant Status

Early change of thyroid hormone concentration after 131I treatment in patients with solitary toxic adenoma

2002 ◽  
Vol 41 (04) ◽  
pp. 178-183 ◽  
Author(s):  
V. Fidler ◽  
K. Zaletel ◽  
S. Gaberšček ◽  
S. Hojker ◽  
E. Pirnat
Keyword(s):  
Thyroid Hormone ◽  
Antithyroid Drugs ◽  
Prospective Clinical Study ◽  
Hormone Concentration ◽  
Toxic Adenoma ◽  
Free Triiodothyronine ◽  
Thyroid Cells ◽  
131I Treatment ◽  
Before And After ◽  
Thyroid Hormone Concentration

Summary Aim: In spite of extensive use of 131I for treatment of hyperthyroidism, the results of early outcome are variable. In our prospective clinical study we tested whether 131I induced necrosis causing clinical aggravation of hyperthyroidism and increasing the free thyroid hormone concentration in the serum of patients with solitary toxic adenoma not pretreated with antithyroid drugs. Patients and methods: 30 consecutive patients were treated with 925 MBq 131I. Serum concentration of thyrotropin (TSH), free thyroxine (fT4), free triiodothyronine (fT3), thyroglobulin (Tg), and interleukin-6 (IL-6) were measured before and after application of 131I. Results: After application of 131I no clinical worsening was observed. FT4 and fT3 concentration did not change significantly within the first five days, whereas both of them significantly decreased after 12 days (p <0.0001). Slight and clinically irrelevant increase in the level of the two thyroid hormones was observed in 9 patients. Furthermore, we observed a prolonged increase in Tg concentration and a transient increase in IL-6 concentration. Conclusion: Neither evidence of any clinical aggravation of hyperthyroidism nor any significant increase in thyroid hormone concentration by 131I induced necrosis of thyroid cells was found. Therefore, the application of 131I may be considered as a safe and effective treatment for patients with hyperthyroidism due to toxic adenoma.

scholarly journals Very rare case of Graves’ disease with resistance to methimazole: a case report and literature review

2021 ◽  
Vol 49 (3) ◽  
pp. 030006052199619
Author(s):  
Yusaku Mori ◽  
Munenori Hiromura ◽  
Michishige Terasaki ◽  
Hideki Kushima ◽  
Makoto Ohara ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Rare Case ◽  
Therapeutic Option ◽  
Lithium Carbonate ◽  
Graves Disease ◽  
High Dose ◽  
Hormone Concentration ◽  
Thyroid Hormone Concentration ◽  
Serum Thyroid Hormone ◽  
Inorganic Iodine

Background Methimazole (MMI) is used to treat hyperthyroidism in Graves’ disease. It is rare to encounter patients in whom hyperthyroidism cannot be controlled using high doses of MMI. Case presentation: A 21-year-old woman was referred to our hospital because of MMI-resistant Graves’ disease. Although her MMI dose had been increased to 120 mg/day, her serum thyroid hormone concentration was too high to be measured. Additional therapy with lithium carbonate, and then with dexamethasone and inorganic iodine, was initiated. After 14 days, the patient’s serum thyroid hormone concentration normalized, while she was taking 150 mg/day MMI, 800 mg/day lithium carbonate, 6 mg/day dexamethasone and 306 mg/day inorganic iodine, and total thyroidectomy was then performed. The patient was discharged 8 days after the thyroidectomy and experienced no major complications. Conclusions We have presented a rare case of Graves’ disease that was resistant to high-dose MMI. Combination therapy of MMI with lithium carbonate, dexamethasone and inorganic iodine may represent a therapeutic option for the preoperative preparation of patients with MMI-resistant Graves’ disease.

A Potential Systematic Error in Using Lysivane as Inhibitor in the Measurement of Amniotic Fluid Acetylcholinesterase by the Ellman Method

1983 ◽  
Vol 20 (3) ◽  
pp. 159-162 ◽  
Author(s):  
B A Webb ◽  
S J Richardson ◽  
R Garry ◽  
J Atkins
Keyword(s):  
Enzymatic Hydrolysis ◽  
Amniotic Fluid ◽  
Systematic Error ◽  
Neural Tube ◽  
Neural Tube Defects ◽  
Acidic Solution ◽  
Rate Of Increase ◽  
Background Absorption ◽  
Low Levels ◽  
Hydrolysis Of

The measurement of low levels of cholinesterase or acetylcholinesterase by the Ellman method requires correction for a non-enzymatic increase in absorption at 412 mμ that is due both to non-enzymatic hydrolysis of the acetylthiocholine substrate and to modification of the colour reagent. The rate of increase in absorption is dependent on temperature and pH. Addition of an acidic solution of lysivane to the assay solution for selective measurement of amniotic fluid acetylcholinesterase gives rise to a shift in pH; the use of methanol is suggested as an easier method of dissolving the inhibitor and does not affect the pH of the assay, obviating any need to redetermine the background absorption. There is, however, no improvement in ability of the method to predict pregnancies associated with neural-tube defects.

scholarly journals Effect of thyroid hormone concentration on the transcriptional response underlying induced metamorphosis in the Mexican axolotl (Ambystoma)

BMC Genomics ◽  
2008 ◽  
Vol 9 (1) ◽  
pp. 78 ◽  
Author(s):  
Robert B Page ◽  
Stephen R Voss ◽  
Amy K Samuels ◽  
Jeramiah J Smith ◽  
Srikrishna Putta ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Transcriptional Response ◽  
Hormone Concentration ◽  
Mexican Axolotl ◽  
Thyroid Hormone Concentration

scholarly journals Neural tube defects and elevated homocysteine levels in amniotic fluid

1995 ◽  
Vol 172 (5) ◽  
pp. 1436-1441 ◽  
Author(s):  
Régine P. Steegers-Theunissen ◽  
Godfried H. Boers ◽  
Henk J. Blom ◽  
Jan G. Nijhuis ◽  
Chris M.G. Thomas ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Neural Tube ◽  
Neural Tube Defects
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