Adult polyglucosan body disease body disease do not have identified mutations in the "GBE1" gene. In these individuals, the cause of the disease is unknown. Along with evaluation of the symptoms and a neurological examination, a diagnosis can be made based on genetic testing. Whether or not a person is making sufficient amounts of functional glycogen branching enzyme can be determined by taking a skin biopsy and testing for activity of the enzyme. Examination of tissue biopsied from the sural nerve under a microscope can reveal the presence of polyglucosan bodies. There will also be white matter changes visible in a magnetic resonance imaging
Jens Ritter Instruments naturally finished. A tone and a volume pot was also added. The Benson-Tribute is one of very few solid body guitars in George Benson's guitar collection. In 2011, the Monroe was released, followed by the PJS in 2012 and Porsch in 2015. Jens Ritter Instruments Jens Ritter Instruments is a manufacturer of high-end electric stringed instruments. It was founded by Jens Ritter in the mid-1990s and was known as Ritter Bass Guitars until 2010 when Jens expanded his line to include guitars. Jens produces 50 to 60 handmade instruments each year in his shop located in the small wine town