Changes of melatonin secretion in the neuropathic pain induced sleep disorder model rat.

Chronic pain due to peripheral neuropathy can lead to sleep disorders that significantly worsen the patient's quality of life. Previously, we conducted brain wave measurements in a rat model of neuropathic pain and identified its potential as a model for sleep disorders associated with chronic pain (reported). In this study, we quantified melatonin secretion and assessed its circadian rhythm in a rat model of pain-induced sleep disorder.

A case of bullous pemphigoid showing antigenic competition-like phenomenon.

Antigenic competition in the skin is a phenomenon in which the current dermatitis is distributed away from the area of previously existing dermatitis. Bullous pemphigoid may present such phenomenon, even if the responsible antigen was the same.

A questionnaire survey of the illegal importation of pork products by air travelers into Japan from China and exploration of causal factors.

With the aim of obtaining information to establish an import risk assessment on African swine fever (ASF) and other transboundary animal diseases (TADs) into Japan, a questionnaire survey was conducted between 1 August and 20 September 2019 on air travellers arriving into Japan from China. There were 248 responses with 2.8 % of respondents illegally importing pork products.