We conclude that exogenously infused and endogenously released NGF protects against postischemic neural stunning of sympathetic cardiac innervation.

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IntroductionAnaplastic transformation of well-differentiated papillary thyroid carcinoma at distant metastasis sites is rare. To the best of our knowledge, this is the first report of an autopsy case of anaplastic transformation of papillary thyroid carcinoma in multiple lung metastases presenting with a malignant pleural effusion.Case presentationWe report an autopsy case of a 61-year-old Japanese man with anaplastic transformation of papillary thyroid carcinoma with multiple lung metastases presenting with a malignant pleural effusion, which was difficult to diagnose by cytological examination before the autopsy. He presented with a 1-month history of progressive dyspnea, and examination of the left pleural effusion revealed a bloody exudate with an increase in thyroglobulin; however, malignant cells in the pleural fluid were negative for thyroglobulin.ConclusionIt is important to be aware that anaplastic transformation of differentiated thyroid carcinoma could develop in lung metastases and could be a cause of a malignant pleural effusion.

SUMMARY “Monitoring Sites 1000” – Japan's long‐term monitoring survey was established in 2003, based on the Japanese Government policy for the conservation of biodiversity. Ecological surveys have been conducted on various types of ecosystems at approximately 1000 sites in Japan for 15 years now and are planned to be carried out for 100 years. Since 2008, seaweed communities had been monitored at six sites, featuring the kelp (e.g. Saccharina and Ecklonia; Laminariales) and Sargassum (Fucales) communities in the subarctic and temperate regions of Japan. Annual surveys were carried out during the season when these canopy‐forming seaweeds are most abundant. A non‐destructive quadrat sampling method, with permanent quadrats placed along transects perpendicular to the shoreline, was used to determine species composition, coverage, and vertical distribution of seaweeds at these sites; while destructive sampling was done every 5 years to determine biomass. The occurrence of canopy‐forming species Saccharina japonica (var. japonica) and Ecklonia cava have appeared to be stable at the Muroran (southwestern part of Hokkaido Island) and Shimoda (Pacific coast of middle Honshu Island) sites, respectively; whereas the coverage of Ecklonia radicosa (= Eckloniopsis radicosa) at the Satsuma‐Nagashima site in southern part of Kyushu Island was highly variable until its sudden disappearance from the habitat in 2016. Thalli of E. radicosa lost most of their blades through browsing by herbivorous fish, and thus, this may be one of the causes of the decline. A shift in the community structure related to environmental changes had also been observed at some other sites. Pre‐ and post‐disaster data revealed the impact of the 2011 earthquake and tsunami disasters, including a shift in the vertical distribution of Ecklonia bicyclis (= Eisenia bicyclis) to shallower depths at the Shizugawa site in the Pacific coast of northern Honshu Island, due to seafloor subsidence.

SUMMARY We monitored an Eisenia bicyclis kelp bed during a survey of the rocky coast subtidal zone of Shizugawa Bay, the Sanriku Coast, northeastern Honshu, Japan, from 23 July 2008, to detail the biodiversity, which was subsequently directly impacted by the 2011 Great East Japan Earthquake (GEJE). To assess temporal changes in abundance of the dominant canopy forming kelp E. bicyclis and in the distribution patterns of macroalgae along a water depth gradient, percent coverage of macroalgae has been observed in permanent quadrats set near the lower limit of the Eisenia bed and in quadrats set along a water depth gradient. The GEJE, which induced huge tsunami waves and coseismic seafloor subsidence, occurred during the monitoring survey period and also affected the coastal communities in Shizugawa Bay. After the GEJE, the cover of E. bicyclis within the permanent quadrats near the lower limit of E. bicyclis gradually declined, and reached zero by July 2014. Also in the line transect survey, the offshore (deep) edge of the Eisenia bed showed a tendency to shift shoreward (upward) after the GEJE; the Eisenia bed near the pre‐earthquake offshore (deep) edge declined and finally disappeared after the GEJE. Combined with results of the permanent quadrat and line transect surveys, the post‐earthquake gradual decline and subsequent complete disappearance of the Eisenia bed within the permanent quadrats probably indicates an upward shift of the deep edge of the subsided kelp bed. Gradual change in the E. bicyclis bed over 2 years after the GEJE is a unique opportunity to document the response of a kelp bed to coseismic subsidence, demonstrating the slow and prolonged recovery process of E. bicyclis to subsidence caused by the mega‐earthquake to the pre‐earthquake depth zone.

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