Treatment of hypothyroidism using Korean medicine: 2 case reports.

INTRODUCTION: Hypothyroidism, the most common endocrine disease, comprises a deficiency of thyroid hormone, causing coldness, fatigue, and dysmenorrhea. Here, we report the improvement of hypothyroidism symptoms and thyroid hormone level normalization by using Korean herbal medicine and acupuncture therapy. PATIENT CONCERNS: A 30-year-old woman (Case 1) presented at the clinic with continuous seborrheic dermatitis on the scalp, accompanied by dysmenorrhea. A 55-year-old woman (Case 2) presented with symptoms of coldness of the limbs and fatigue. DIAGNOSIS: Both patients were diagnosed with "Yin deficiency and Yang hyperactivity" and hypothyroidism after serum thyroid function tests. INTERVENTIONS: Both patients received herbal medicine decoction, acupuncture, and electroacupuncture therapy. OUTCOMES: Korean medicine improved the symptoms of hypothyroidism and significantly normalized thyroid-stimulating hormone and free-thyroxine levels. CONCLUSION: These outcomes suggest that Korean medicine may be effective for resolution of hypothyroidism; however, further research is needed to confirm these findings.

Activating efficient phosphorescence from purely organic materials by crystal design.

Phosphorescence is among the many functional features that, in practice, divide pure organic compounds from organometallics and inorganics. Considered to be practically non-phosphorescent, purely organic compounds (metal-free) are very rarely explored as emitters in phosphor applications, despite the emerging demand in this field. To defy this paradigm, we describe novel design principles to create purely organic materials demonstrating phosphorescence that can be turned on by incorporating halogen bonding into their crystals. By designing chromophores to contain triplet-producing aromatic aldehydes and triplet-promoting bromine, crystal-state halogen bonding can be made to direct the heavy atom effect to produce surprisingly efficient solid-state phosphorescence. When this chromophore is diluted into the crystal of a bi-halogenated, non-carbonyl analogue, ambient phosphorescent quantum yields reach 55%. Here, using this design, a series of pure organic phosphors are colour-tuned to emit blue, green, yellow and orange. From this initial discovery, a directed heavy atom design principle is demonstrated that will allow for the development of bright and practical purely organic phosphors.