Characterization of Arthropeptide B, an Antifungal Cyclic Tetrapeptide from Arthrobacter humicola.

Disease suppressive composts are known, yet little information on the potential role of specific microbial antagonist within are available. Arthrobacter humicola isolate M9-1A has been obtained from a compost prepared from marine residues and peat moss. The bacterium is a non-filamentous actinomycete with antagonistic activity against plant pathogenic fungi and oomycetes sharing its ecological niche in agri-food microecosystems.

Immunotherapy and Thyroid Dysfunction: Relevance to Nuclear Medicine.

We report a case of a 66-year-old woman with small cell lung cancer (stage IIB, T2N1M0), who received immunotherapy with nivolumab monthly for 2 months and then presented with thyrotoxic symptoms associated with suppressed thyroid-stimulating hormone levels and elevated free thyroid hormone levels, although previous thyrotropin performed 1 month ago was normal. Thyroid uptake and scan demonstrated diffusely decreased uptake in both thyroid lobes. The 4-hour percentage uptake was 0.