995 research outputs found
New Obesity Indices and Adipokines in Normotensive Patients and Patients With Hypertension: Comparative Pilot Analysis.
No full textWe compared the obesity parameters and selected adipokines—leptin, adiponectin, and resistin—in obese patients with
hypertension and normotensive patients. A total of 67 nondiabetic obese outpatients were divided into 2 groups: A–hypertensive
and B–normotensive. Serum levels of leptin, adiponectin, resistin, and insulin were measured.Weight, height, waist circumference,
and hip circumference were measured to calculate waist-to-hip ratio (WHR), weight-to-height ratio, visceral adiposity index, and
body adiposity index (BAI). Among patients with hypertension, significant positive correlations were observed between leptin
and body mass index and BAI (r = .31 and r = .63, respectively). In normotensive patients, leptin positively correlated with BAI
(r = .73, P < .01) and negatively with WHR (r = -.55, P < .0001); adiponectin negatively correlated with WHR (r = .38, P < .01)
and BAI (r = .52; P < .0001), and resistin negatively correlated with WHR (r = -.36, P < .05). In conclusion, visceral obesity and
leptin are associated with hypertension in obese patients
Predictors of insulin resistance in patients with obesity: a pilot study.
No full textWe compared adipokines and inflammatory markers in obese insulin-sensitive (group A, n 1⁄4 16) and insulin-resistant (group B,
n 1⁄4 48) patients divided according to homeostasis model assessment of insulin resistance (HOMA-IR). Serum levels of
adiponectin, leptin, resistin, high-sensitivity C-reactive protein, interleukin 6, and tumor necrosis factor a were measured.
Weight, height, waist (WC) and hip circumferences, waist to hip ratio , weight to height ratio, visceral adiposity index (VAI), and
body adiposity index (BAI) were measured. The WC and VAI were significantly higher in group B (113.9 + 11.1 vs
105.3 + 9.8cm; P < .01 and 2.3 + 1.1 vs 1.6 + 0.9; P < .05, respectively), while serum adiponectin levels were higher in group
A (24.5 + 14.6 vs 15.1 + 9.6 ng/mL; P < .005). The BAI strongly correlated with adiponectin and leptin in group B (r = .479;
P < .001 and r = .705; P < .001). Insulin resistance is associated with visceral adiposity described by VAI and WC. The BAI may
be a useful index in obese patients, especially with insulin resistance
2023 Hollister Lecture
No full textMr. Stepien graduated from Elmhurst College in 1965 and began his career as a middle school social studies teacher. In 1978, he became a program developer and senior author for the K-7 social studies series for the Scott, Foresman Company. When IMSA opened in 1985, he was tapped to plan curriculum, hire faculty, and help with facility design. Joining its faculty, he taught at IMSA for ten years. In 1994, Mr. Stepien became IMSA’s director of the Center for Problem-Based Learning, turning his full attention to research and writing about applications of PBL in elementary and secondary schools. He established the Consortium for Problem-Based Learning at Northern Illinois University in 1997 and became a national consultant in PBL for the Association for Supervision and Curriculum Development (ASCD). Mr. Stepien consulted with more than fifty schools every year, presented at numerous national meetings and conventions, and consulted with organizations such NASA, the Museum of Science and Industry (Chicago), Prime Time School Television, and The Wall Street Journal
Biomass gasification and syngas production for use in solid oxide fuel cell: gas cleaning and conditioning, and performance tests
No full textPerformance tests with a SOFC unitfuelled with syngas produced from biomass gasification ractors, properly conditioned and cleaned
No full textMeal inertia: the impact of eating different sized meals on vigilant attention throughout the night
No full textAbstract #0171Gupta CC, Dorrian J, Centofanti S, Coates A, Kennaway D, Wittert G, Heilbronn L, Catcheside P, Noakes M, Stepien J, Chandrakumar D, Coro D, Banks
Performance tests with a SOFC unit fuelled with syngas produced from biomass gasification reactors, properly conditioned and cleaned
No full textPerformance tests were completed with a SOFC unit fuelled with syngas produced from biomass gasification reactors, properly conditioned and cleaned. Three series of tests at bench and industrial scale were completed. The results of the tests indicate that cleaned syngas, from both steam blown gasifier and oxygen/steam blown gasifier reactor, is a feasible fuel for anode supported SOFC cell. Cell performance on cleaned syngas is comparable or better than SOFC cell performance fuelled with the reference, hydrogen/nitrogen gas mixture. Several potential issues for the integrated SOFC/gasifier operation were identified. Proper humidification of the gas stream, necessary to avoid carbon deposition, is critical for the long term cell performance. The presence of larger amounts of methane and higher hydrocarbons may lead to SOFC cell cracking due to large temperature gradients resulting from internal reforming process
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