The Journal of clinical endocrinology and metabolism
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J. Clin. Endocrinol. Metab. · Feb 2017
Cortical Bone Area Predicts Incident Fractures Independently of Areal Bone Mineral Density in Older Men.
Areal bone mineral density (aBMD) measured using dual-energy X-ray absorptiometry (DXA) is used clinically to predict fracture but does not discriminate between trabecular and cortical bone assessment. ⋯ HR-pQCT measurement of cortical area and mass might add clinically useful information for the evaluation of fracture risk.
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J. Clin. Endocrinol. Metab. · Jan 2017
Randomized Controlled Trial Multicenter StudyLow-Dose Aspirin and Sporadic Anovulation in the EAGeR Randomized Trial.
Among women with a single, recent pregnancy loss, daily preconception low-dose aspirin (LDA) increased the live birth rate with no effect on pregnancy loss. Ovulation is a potential mechanism underlying this effect. ⋯ Daily LDA had no effect on anovulation among women with a history of 1 to 2 pregnancy losses. LDA may affect fertility via other pathways, and these warrant further study.
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Reliable localization of insulinoma is critical for successful treatment. ⋯ 68Ga-DOTATATE PET/CT identifies most insulinomas and may be considered as an adjunct imaging study when all imaging studies are negative and when a minimally invasive surgical approach is planned.
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J. Clin. Endocrinol. Metab. · Oct 2016
Observational StudyEnergy Metabolic Adaptation and Cardiometabolic Improvements One Year After Gastric Bypass, Sleeve Gastrectomy, and Gastric Band.
It is not known whether the magnitude of metabolic adaptation, a greater than expected drop in energy expenditure, depends on the type of bariatric surgery and is associated with cardiometabolic improvements. ⋯ Metabolic adaptation of approximately 150 kcal/d occurs after RYGB and SG surgery. Future studies are required to examine whether these effects remain beyond 1 year.
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J. Clin. Endocrinol. Metab. · Oct 2016
ReviewSpontaneous Hypoglycemia After Islet Transplantation: The Case For Using Non-Hepatic Sites.
This Perspective provides a brief history of intrahepatic alloislet and autoislet transplantation in humans and an update of the recent success rates. It also examines the important role that hypoglycemia plays in clinical outcomes. On the one hand, recurrent serious hypoglycemic episodes related to insulin therapy are a major criterion for alloislet transplantation. ⋯ Glucagon secretion from intrahepatic islets during systemic hypoglycemia is also defective, although β-cells in the graft are normally regulated by glucose and arginine. My personal perspective is that the latter is caused by intrahepatic glycogenolysis stimulated by systemic hypoglycemia with consequent increases in intrahepatic glucose flux, which incorrectly signals intrahepatic α-cells to be quiescent. This defect is liver-specific, which strongly suggests modifying the current approach to islet transplantation by placing a portion of allo- and autoislets in nonhepatic sites in addition to hepatic sites to ensure physiological glucagon secretion as a strategy to ameliorate post-transplant hypoglycemia.