Wireless magnetothermal deep brain stimulation.

نویسندگان

  • Ritchie Chen
  • Gabriela Romero
  • Michael G Christiansen
  • Alan Mohr
  • Polina Anikeeva
چکیده

Wireless deep brain stimulation of well-defined neuronal populations could facilitate the study of intact brain circuits and the treatment of neurological disorders. Here, we demonstrate minimally invasive and remote neural excitation through the activation of the heat-sensitive capsaicin receptor TRPV1 by magnetic nanoparticles. When exposed to alternating magnetic fields, the nanoparticles dissipate heat generated by hysteresis, triggering widespread and reversible firing of TRPV1(+) neurons. Wireless magnetothermal stimulation in the ventral tegmental area of mice evoked excitation in subpopulations of neurons in the targeted brain region and in structures receiving excitatory projections. The nanoparticles persisted in the brain for over a month, allowing for chronic stimulation without the need for implants and connectors.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Magnetothermal genetic deep brain stimulation of motor behaviors in awake, freely moving mice

Establishing how neurocircuit activation causes particular behaviors requires modulating the activity of specific neurons. Here, we demonstrate that magnetothermal genetic stimulation provides tetherless deep brain activation sufficient to evoke motor behavior in awake mice. The approach uses alternating magnetic fields to heat superparamagnetic nanoparticles on the neuronal membrane. Neurons, ...

متن کامل

O10: Deep Brain Stimulation and Psychiatry

The use of deep brain stimulation in psychiatric disorders has received great interest owing to the small risk of the operation, the reversible nature of the technique, and the possibility of optimizing treatment postoperatively. Currently deep brain stimulation in psychiatry is investigated for obsessive-compulsive disorder, Gilles de la Tourette’s syndrome and major depression. This presentat...

متن کامل

Control of epileptic seizures by electrical low frequency deep brain stimulation: A review of probable mechanisms

Epilepsy is the most common neurological disease with no definitive method in treatment. Notably, the main way to treat and control epileptic seizures is drug therapy. However, about 20-30% of patients with epilepsy are drug resistant and require other therapeutic manners. Deep brain stimulation is a new therapeutic strategy for these patients. Conspicuously, there are no clear answers for basi...

متن کامل

Closed- and Open-loop Deep Brain Stimulation: Methods, Challenges, Current and Future Aspects

Deep brain stimulation (DBS) is known as the most effective technique in the treatment of neurodegenerative diseases, especially Parkinson disease (PD) and epilepsy. Relative healing and effective control of disease symptoms are the most significant reasons for the tangible tendency in use and development of this technology. Nevertheless, more cellular and molecular investigations are required ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Science

دوره 347 6229  شماره 

صفحات  -

تاریخ انتشار 2015