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arizona.edu

Founded Year

1885

Stage

Grant - VIII | Alive

Total Raised

$77.6M

Last Raised

$1.3M | 10 mos ago

About University of Arizona

University of Arizona is a public research university with two medical schools.

University of Arizona Headquarter Location

Tucson, Arizona, 85721,

United States

520-621-2211

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University of Arizona Patents

University of Arizona has filed 382 patents.

The 3 most popular patent topics include:

  • Polymers
  • Polymer chemistry
  • Thermoplastics
patents chart

Application Date

Grant Date

Title

Related Topics

Status

2/21/2019

4/26/2022

Metallurgy, Steels, Alloys, Transition metals, Oxide minerals

Grant

Application Date

2/21/2019

Grant Date

4/26/2022

Title

Related Topics

Metallurgy, Steels, Alloys, Transition metals, Oxide minerals

Status

Grant

Latest University of Arizona News

Research Identifies Link Between Parkinson’s Gene and Soft Voice

May 12, 2022

By Kyle Mittan, News Writer, University Communications, University of Arizona Parkinson’s disease is perhaps best known for its movement-related symptoms, particularly tremors and stiffness. But the disease is also known to hinder vocal production, giving those with Parkinson’s a soft monotonous voice. Those Parkinson’s soft-voice symptoms, research has suggested, often appear much earlier in the disease’s development – sometimes decades before movement-related symptoms. New research by University of Arizona neuroscientists suggests that a specific gene commonly associated with Parkinson’s may be behind those soft voice-related issues – a finding that could help lead to earlier diagnoses and treatments for Parkinson’s patients. An article detailing the research appears on the University’s website. Julie E. Miller The research was conducted in the lab of  Julie E. Miller , an assistant professor of  neuroscience  and of  speech, language, and hearing sciences  in the College of Science. “We have this big gap here – we don’t know how this disease impacts the brain regions for vocal production, and this is really an opportunity to intervene early and come up with better treatments,” said Miller, who also has joint appointments in the Department of Neurology and the Graduate Interdisciplinary Program in Neuroscience, and is a member of the UArizona  BIO5 Institute . The study was  published Wednesday  in PLOS ONE. César A. Medina, a former PhD student in Miller’s lab who is now a postdoctoral scholar at Johns Hopkins University, is the paper’s lead author. Also involved in the research were Eddie Vargas, a former UArizona undergraduate student who will soon attend the  College of Medicine – Tucson , and Stephanie Munger, a research professional in the Department of Neuroscience. To investigate any correlation between vocal changes and the Parkinson’s-related gene – known as alpha-synuclein – the researchers turned to the zebra finch, a songbird native to Australia. The birds are an ideal model for human speech and voice pathways for several reasons, Medina said. Young finches learn their songs from older, father-like male birds, much in the same way babies learn to speak by listening to their parents. The part of a finch’s brain that deals with speech and language is also organized very similarly to its counterpart in the human brain. César A. Medina “These similarities across behavior, anatomy and genetics allow us to use the zebra finches as a model for human speech and voice,” Medina said. To see how alpha-synuclein might affect vocal production in the birds, researchers first took baseline recordings of their songs. They then introduced a copy of the gene into some of the birds; other birds were not given the gene so researchers could compare the results. All the birds’ songs were recorded again immediately after introducing the gene, and then one, two and three months later. The researchers used computer software to analyze and compare the acoustic features of the songs over time, studying pitch, amplitude, and duration of the songs to determine whether and when the birds’ vocal production changed. Initial findings showed that alpha-synuclein did affect song production. The birds with the gene sang less after two months, and they sang less at the start of a song session three months after receiving the gene. The vocalizations were also softer and shorter, findings similar to what is seen in the human disease. To determine whether the effects on speech were connected to changes in the brain, the researchers zeroed in on a section of the brain called Area X. They found that there were higher levels of the alpha-synuclein protein in Area X, helping them establish that the gene did, in fact, cause the changes in the brain that led to changes in vocal production, Medina said. This connection, he added, had been predicted in previous Parkinson’s research, but it was not conclusive. The next step, Miller said, is figuring out how to apply these findings to human data, which could provide more answers that lead to better Parkinson’s diagnoses and treatments – ones that come long before movement-related symptoms tell a patient to visit a neurologist. The long-term goal of the Miller Lab, she said, is to partner with other researchers and private companies to develop drugs that target alpha-synuclein and other genes associated with Parkinson’s. Doing so, Medina said, would mean “we could stop the progression of Parkinson’s disease before it becomes a detrimental impediment to the quality of life for the patient.”

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