Metyrapone single administration, as a possible predictive tool of its dosage and timing in Cushing's syndrome.

Metyrapone is commonly used in the initial management of Cushing's syndrome to reduce hypercortisolemia, but its optimal dosage and timing can vary significantly between patients. Currently, there are limited guidelines on adjustment methods for its administration to individual needs. This study aimed to evaluate responsiveness of each patient to metyrapone and identify the patient characteristics associated with the indices of cortisol responsiveness following a low-dose metyrapone.

Successful Management of Intraprocedural Arterial Dissection During Carotid Artery Stenting With an Overlapping CASPER Rx Stent for Tortuous Vessel: A Case Report.

Carotid artery stenosis is a significant cause of ischemic stroke, often necessitating interventions like carotid artery stenting (CAS) to restore adequate blood flow. However, complications like intraprocedural arterial dissection can arise during the procedure. This report presents a case of intraprocedural arterial dissection during CAS using a CASPER Rx stent.

Booster COVID-19 mRNA vaccination ameliorates impaired B-cell but not T-cell responses in older adults.

Age-associated differences in the effect of repetitive vaccination, particularly on memory T-cell and B-cell responses, remain unclear. While older adults (aged ≥65 years) exhibited enhanced IgG responses following COVID-19 mRNA booster vaccination, they produced fewer spike-specific circulating follicular helper T cells-1 than younger adults. Similarly, the cytotoxic CD8 T-cell response remained diminished with reduced PD-1 expression even after booster vaccination compared with that in younger adults, suggesting impaired memory T-cell activation in older adults.

The relationship between controlled ovarian stimulation protocol, meiotic spindle visibility, position of the meiotic spindle relative to the polar body in the human oocyte, and clinical outcomes following ICSI.

Purpose: To investigate the effects of different controlled ovarian stimulation (COS) protocols, including the progestin-primed ovarian stimulation (PPOS), long, short, and the gonadotropin-releasing hormone antagonist protocols, on meiotic spindle visibility and position within the oocyte and clinical outcomes following ICSI.

Methods: Before ICSI, spindle position () just below the polar body (PB) was defined as 0° and categorized as follows:  = 0°, 0° <  ≤ 30°, 30° <  ≤ 60°, 60° <  ≤ 90°, 90° <  ≤ 180°, between the PB and the oolemma, and nonvisible. The clinical outcomes after ICSI were retrospectively analyzed.