The research was covered in the following media　(*=online edition)
◆14 April　
NHK ‘Ohayou Nippon’, ABC ‘Cast’, Nihon Keizai Shinbun newspaper, Asahi newspaper, Yomiuri newspaper, Sankei newspaper, Osaka Nichi Nichi newspaper, Fuji evening edition, Nikkan Gendai evening edition, Jiji Press *, Kyodo News *, and an additional number of local media.

Outline

The research group of Professor Masaaki Inaba of the Osaka City University Graduate School of Medicine Metabolism and Endocrinology Department has shown that impaired sleep quality has a negative effect on glycemic control, augments early morning blood pressure surge and thereby causes the development of cardiovascular disease in type 2 diabetic patients. 

It was already known that patients with sleeping disorders have a higher prevalence of diabetes and probability to develop diabetes thereafter. It was not completely clear however whether there was association of sleep disorder, besides sleep apnea, with glycemic control and/or cardiovascular complication in type 2 diabetes.

In this research, we reveal that, by using used electroencephalogram monitoring, a higher HbA1c, the indicator for glycemic control in diabetes, was independently associated with shortening of the first cycle of sleep time which mainly determines the sleep quality and also shortens the slow-wave sleep for the brain rest during deep sleep.

The research was published on 14 April in the open access journal PLOS ONE. For more details about the research, please see the article via the link below.

【Journal Name】
　PLOS ONE

【Article Title】
　Association between poor glycemic control, impaired sleep quality, and
　increased arterial thickening in type 2 diabetic patients

【Authors】
　Koichiro Yoda, Masaaki Inaba, Kae Hamamoto, Maki Yoda, Akihiro Tsuda,
　Katsuhito Mori, Yasuo Imanishi, Masanori Emoto, Shinsuke Yamada

【URL】
　 http://dx.plos.org/10.1371/journal.pone.0122521