Article
Clinical Neurology
Kelvin Pengyuan Zhang, Miatta Buxton, Yanelli Rodriguez-Carmona, Karen E. Peterson, Yun Liu, Helen J. Burgess, Alejandra Cantoral, Martha Maria Tellez-Rojo, Libni A. Torres-Olascoaga, Laura Arboleda-Merino, Erica C. Jansen
Summary: This study evaluated the association between sleep duration, timing, and variability, and inflammatory cytokines in Mexico City adolescents. The results showed that later timing, shorter duration, and inconsistency of sleep were related to higher levels of inflammatory biomarkers.
Article
Psychology, Developmental
Peiyu Chen, Ana Baylin, Joyce Lee, Galit Levi Dunietz, Alejandra Cantoral, Martha Maria Tellez Rojo, Karen E. Peterson, Erica C. Jansen
Summary: The study examined the relationship between sleep duration, timing, and insulin resistance in Mexican adolescents. Shorter sleep duration and later sleep timing were both independently associated with higher insulin resistance, particularly among girls.
JOURNAL OF ADOLESCENT HEALTH
(2021)
Article
Endocrinology & Metabolism
Rumyana Dimova, Nevena Chakarova, Giuseppe Daniele, Cristina Bianchi, Angela Dardano, Stefano Del Prato, Tsvetalina Tankova
Summary: This study aimed to assess the relationship between insulin secretion and sensitivity, and daily glucose variability (GV) in the early stages of dysglycemia. The results showed that impairment of glucose tolerance was associated with worsening GV, and the increase in GV was inversely related to insulin secretion and action.
DIABETES-METABOLISM RESEARCH AND REVIEWS
(2022)
Editorial Material
Endocrinology & Metabolism
Nils B. Kroemer
Summary: As most studies have mainly focused on the effects of insulin in the brain on men, there is limited understanding of metabolic changes during the menstrual cycle in women. Hummel et al. found that insulin sensitivity is reduced during the luteal phase through intranasal insulin administration and functional MRI.
Article
Endocrinology & Metabolism
Miki Kakutani-Hatayama, Manabu Kadoya, Akiko Morimoto, Akio Miyoshi, Kae Kosaka-Hamamoto, Akinori Kanzaki, Kosuke Konishi, Yoshiki Kusunoki, Takuhito Syoji, Hidenori Koyama
Summary: This study found that long daytime napping may lead to decreased insulin sensitivity, particularly in individuals with shorter nighttime sleep.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Endocrinology & Metabolism
Joshua I. Barzilay, William Tressel, Mary L. Biggs, Phyllis K. Stein, Jorge R. Kizer, Sanyog G. Shitole, Yakubu Bene-Alhasan, Kenneth J. Mukamal
Summary: Specific measures of cardiac autonomic function are prospectively related to changes in blood glucose levels and insulin secretion and action.
Article
Sport Sciences
Shona L. Halson, Rich D. Johnston, Laura Piromalli, Benita J. Lalor, Stuart Cormack, Gregory D. Roach, Charli Sargent
Summary: This study found that bedtime and a consistent sleep onset time are important factors associated with sleep efficiency in elite athletes, while sleep offset is an important factor for total sleep time.
SPORTS MEDICINE-OPEN
(2022)
Article
Physiology
Elizabeth B. Klerman, Giuseppe Barbato, Charles A. Czeisler, Thomas A. Wehr
Summary: By analyzing sleep data from two human studies with extended sleep opportunities, it was found that total sleep duration, REM sleep duration, and non-REM sleep duration decreased, while sleep latency increased across nights. It takes multiple nights to reach steady-state values, indicating a multi-day homeostatic sleep process responding to self-selected insufficient sleep duration prior to the study. Once steady-state values were reached, there were large night-to-night variations in total sleep time and other sleep metrics.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Endocrinology & Metabolism
Rana Halloun, Alfonso Galderisi, Sonia Caprio, Ram Weiss
Summary: This study found that adipose tissue insulin resistance does not protect against increases in the degree of obesity in youth with obesity, and skeletal muscle insulin resistance is not associated with increases in the degree of obesity.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2023)
Article
Multidisciplinary Sciences
Geraldine Vitry, Rebecca Finch, Gavin Mcstay, Afshin Behesti, Sebastien Dejean, Tricia Larose, Virginia Wotring, Willian Abraham da Silveira
Summary: In this study, the transcriptome response of liver and quadriceps from mice during spaceflight on NASA RR1 mission was compared, revealing that lipid metabolism was the most affected biological process in these two organs.
Review
Nutrition & Dietetics
Su-Min Moon, Min-Jin Joo, Young-Seo Lee, Myeong-Gyu Kim
Summary: This meta-analysis found that long-term coffee consumption had a nonsignificant effect on insulin resistance and sensitivity. Further studies are needed to evaluate the effects of coffee consumption in healthy, young, and normal-weight individuals.
Article
Endocrinology & Metabolism
Jose E. Galgani, Rodrigo Fernandez-Verdejo
Summary: Glucose, fatty acids, and amino acids are oxidized to produce ATP for energy, and the complex adaptive systems in the body adjust fuel oxidation rates based on fuel availability. Metabolic flexibility refers to the ability of cells, tissues, or organisms to adapt fuel oxidation to fuel availability, which can be impaired in conditions like insulin resistance, diabetes, and obesity. Mitochondrial dysfunction in these conditions has been linked to metabolic inflexibility and overall metabolic health.
Article
Endocrinology & Metabolism
Guanhong Miao, Ying Zhang, Zhiguang Huo, Wenjie Zeng, Jianhui Zhu, Jason G. Umans, Gert Wohlgemuth, Diego Pedrosa, Brian DeFelice, Shelley A. Cole, Amanda M. Fretts, Elisa T. Lee, Barbara V. Howard, Oliver Fiehn, Jinying Zhao
Summary: The study found that alterations in plasma molecular lipids are closely associated with the risk of type 2 diabetes (T2D) in American Indians, with various lipid species showing significant impact on T2D risk both at baseline and over time. Aberrant lipid profiles were observed in prediabetes, and longitudinal changes in lipidome were significantly linked to changes in continuous measures of T2D. The findings suggest that lipid dysregulation occurs many years before the onset of T2D and may provide new therapeutic targets for early intervention tailored to American Indians.
Article
Critical Care Medicine
Vincent Uyttendaele, J. Geoffrey Chase, Jennifer L. Knopp, Rebecca Gottlieb, Geoffrey M. Shaw, Thomas Desaive
Summary: This study found significant differences in insulin sensitivity levels between males and females, with females consistently having lower levels. However, metabolic variability between sexes was never significantly different and always clinically equivalent. These findings suggest that females may require higher insulin doses for achieving the same level of glycaemia as males, and clinical trials should consider sex differences in protocol design and outcome analyses.
ANNALS OF INTENSIVE CARE
(2021)
Article
Endocrinology & Metabolism
Han-Chow E. Koh, Stephan van Vliet, Chao Cao, Bruce W. Patterson, Dominic N. Reeds, Richard Laforest, Robert J. Gropler, Yo-El S. Ju, Bettina Mittendorfer
Summary: The study found that OSA is associated with significant insulin resistance in adipose tissue and muscles, but not in endogenous glucose production or insulin secretion. Therefore, it is important to consider OSA status when evaluating metabolic function in obese individuals.
EUROPEAN JOURNAL OF ENDOCRINOLOGY
(2022)