title: Variations in red blood cell proton T1 relaxation times that correspond to menstrual cycle changes.
abstract: A study was made of the relationship of proton T1 relaxation times and stage of the menstrual cycle. Preliminary data show that these indicators of red blood cell hydration status may be useful as objective markers of premenstrual tension.
mesh_terms: D000328:Adult; D004912:Erythrocytes / Q000502:physiology*; D005260:Female; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008597:Menstrual Cycle; D011293:Premenstrual Syndrome / Q000175:diagnosis* / Q000503:physiopathology; D011522:Protons
chemical_list: D011522:Protons