Heat in the Arabian Gulf: An analytical review of the impact of ambient temperature on the oral glucose tolerance test

Avicenna ◽  
2014 ◽  
Vol 2014 ◽  
pp. 3
Author(s):  
William Greer ◽  
Lars Hedin
Keyword(s):  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Ambient Temperature ◽  
Glucose Tolerance Test ◽  
Arabian Gulf ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Analytical Review ◽  
The Impact

scholarly journals GH Response to Oral Glucose Tolerance Test: A Comparison between Patients with Acromegaly and Other Pituitary Disorders

Endocrinology ◽  
2010 ◽  
Vol 151 (12) ◽  
pp. 5973-5973
Author(s):  
E. Verrua ◽  
M. Filopanti ◽  
C. L. Ronchi ◽  
L. Olgiati ◽  
E. Ferrante ◽  
...  
Keyword(s):  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Healthy Subjects ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Gh Secretion ◽  
Hypothalamic Function ◽  
The Impact

Context: The cutoff value of nadir GH after an oral glucose tolerance test (OGTT) used to define disease remission in acromegaly is higher than that observed in healthy subjects. However, it is uncertain whether the impaired GH inhibition might be related to subtle abnormalities of GH secretion or to functional and/or anatomical hypothalamic-pituitary disconnection due to tumor per se or treatments. Objective: The objective of the study was to evaluate the impact of pituitary disorders other than acromegaly on GH response to OGTT. Design, Subjects, and Methods: Thirty-three patients (24 females and nine males, aged 50.1 ± 12.3 yr, 13 operated and two irradiated) with various hypothalamic-pituitary disorders (HPDs), 45 healthy subjects (controls), and 42 cured acromegalic patients matched for sex, age. and body mass index were investigated. All subjects were studied for IGF-I levels and GH levels before and during the OGTT. Results: In HPD patients mean postglucose nadir GH levels were 0.11 ± 0.08 μg/liter without any difference between patients treated with neurosurgery and/or radiotherapy and untreated and between patients with and without pituitary stalk alterations and/or hyperprolactinemia. Mean nadir GH values were similar in HPD patients and controls (0.11 ± 0.08 vs. 0.08 ± 0.08 μg/liter, P = 0.23) and lower than those found in cured acromegalic patients (0.18 ± 0.13 μg/liter, P = 0.02), although there was an overlapping in about half of patients. Conclusions: Hypothalamic control of glucose-mediated GH suppression is not perturbed in patients with HPD. These data indicate that defective GH suppression to glucose that is found in acromegaly is unlikely to reflect a lack of integrity of hypothalamic function.

scholarly journals GH Response to Oral Glucose Tolerance Test: A Comparison between Patients with Acromegaly and Other Pituitary Disorders

2010 ◽  
Vol 31 (6) ◽  
pp. 945-945
Author(s):  
E. Verrua ◽  
M. Filopanti ◽  
C. L. Ronchi ◽  
L. Olgiati ◽  
E. Ferrante ◽  
...  
Keyword(s):  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Healthy Subjects ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Gh Secretion ◽  
Hypothalamic Function ◽  
The Impact

Context The cutoff value of nadir GH after an oral glucose tolerance test (OGTT) used to define disease remission in acromegaly is higher than that observed in healthy subjects. However, it is uncertain whether the impaired GH inhibition might be related to subtle abnormalities of GH secretion or to functional and/or anatomical hypothalamic-pituitary disconnection due to tumor per se or treatments. Objective The objective of the study was to evaluate the impact of pituitary disorders other than acromegaly on GH response to OGTT. Design, Subjects, and Methods Thirty-three patients (24 females and nine males, aged 50.1 ± 12.3 yr, 13 operated and two irradiated) with various hypothalamic-pituitary disorders (HPDs), 45 healthy subjects (controls), and 42 cured acromegalic patients matched for sex, age. and body mass index were investigated. All subjects were studied for IGF-I levels and GH levels before and during the OGTT. Results In HPD patients mean postglucose nadir GH levels were 0.11 ± 0.08 μg/liter without any difference between patients treated with neurosurgery and/or radiotherapy and untreated and between patients with and without pituitary stalk alterations and/or hyperprolactinemia. Mean nadir GH values were similar in HPD patients and controls (0.11 ± 0.08 vs. 0.08 ± 0.08 μg/liter, P = 0.23) and lower than those found in cured acromegalic patients (0.18 ± 0.13 μg/liter, P = 0.02), although there was an overlapping in about half of patients. Conclusions Hypothalamic control of glucose-mediated GH suppression is not perturbed in patients with HPD. These data indicate that defective GH suppression to glucose that is found in acromegaly is unlikely to reflect a lack of integrity of hypothalamic function.

scholarly journals The Oral Glucose Tolerance Test—Is It Time for a Change?—A Literature Review with an Emphasis on Pregnancy

2020 ◽  
Vol 9 (11) ◽  
pp. 3451
Author(s):  
Delia Bogdanet ◽  
Paula O’Shea ◽  
Claire Lyons ◽  
Amir Shafat ◽  
Fidelma Dunne
Keyword(s):  
Gestational Diabetes ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Glucose Tolerance Test ◽  
Vascular Complications ◽  
Tolerance Test ◽  
Reproductive Age ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
The Impact

Globally, gestational diabetes (GDM) is increasing at an alarming rate. This increase is linked to the rise in obesity rates among women of reproductive age. GDM poses a major global health problem due to the related micro- and macro-vascular complications of subsequent Type 2 diabetes and the impact on the future health of generations through the long-term impact of GDM on both mothers and their infants. Therefore, correctly identifying subjects as having GDM is of utmost importance. The oral glucose tolerance test (OGTT) has been the mainstay for diagnosing gestational diabetes for decades. However, this test is deeply flawed. In this review, we explore a history of the OGTT, its reproducibility and the many factors that can impact its results with an emphasis on pregnancy.

Abstract #873: Association of Patterns in the Oral Glucose Tolerance Test and Different Clinical Features in Patients with Insulinoma

2005 ◽  
Vol 11 ◽  
pp. 28
Author(s):  
Fanny Rodriguez Vallejo ◽  
Juan Manuel Rios Torres ◽  
Francisco J. Gomez-Pérez ◽  
Juan A. Rull Rodrigo ◽  
Bernardo Pérez Enriquez
Keyword(s):  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Clinical Features ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance

Oral glucose tolerance test or HbA1c assessment of subjects with coronary disease verified by angiography

2016 ◽  
Author(s):  
Zivkovic Teodora Beljic ◽  
Biljana Jojic ◽  
Jelic Marina Andjelic ◽  
Goran Loncar ◽  
Aleksandar Davidovic ◽  
...  
Keyword(s):  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Coronary Disease ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance
Sign in / Sign up

Export Citation Format

Share Document