PARKINSON'S DISEASE NEWS
29th December 2013 - New research
L-DOPA PRODRUG FOR PARKINSON'S DISEASE
Movement Disorders  Dec 13 [Epub ahead of print (P.A.Lewitt, F.J.Huff, R.A.Hauser, D.Chen, D.Lissin, K.Zomorodi, K.C.Cundy) Complete abstract
XP21279 is a new L-dopa prodrug being developed by Xenoport for the treatment of Parkinson's Disease. It uses naturally occurring, high capacity nutrient transporters in the gastrointestinal tract to generate active and efficient absorption into the body.
XP21279-carbidopa sustained-release bilayer tablets were developed to provide more continuous exposure to L-dopa. Once absorbed, XP21279 is rapidly converted into L-dopa. In a clinical trial of XP21279, people with Parkinson's Disease were given either XP21279 with carbidopa, or L-dopa with carbidopa, which as Sinemet is the most common means of treating Parkinson's Disease.
The average daily off time was reduced more when using XP21279 but only by 18 minutes. There was little difference between the two in their effect on dyskinesia. However, XP21279 significantly reduced the variability of L-dopa concentration that occurs when using Sinemet (L-dopa and carbidopa). This was achieved by taking XP21279 only three times per day, instead of the four to five times a day that the L-dopa with carbidopa was taken. Therefore, overall, although L-dopa and carbidopa as Sinemet is the most common means of treating Parkinson's Disease, XP21279 was found to be more advantageous. In order to refer to this article on its own click here.
28th December 2013 - New research
FEMALE REPRODUCTIVE FACTORS AND THE RISK OF PARKINSON'S DISEASE
Movement Disorders  Dec 18 [Epub ahead of print] (R.Liu, D.Baird, Y.Park, N.D.Freedman, X.Huang, A.Hollenbeck, A.Blair, H.Chen) Complete abstract
In the largest ever study of its kind, researchers examined female reproductive factors and the risk of Parkinson's Disease. The study involved nearly 120,000 postmenopausal women aged 50 to 71 years. The risk of developing Parkinson's Disease was not significantly associated with female reproductive factors including age at first menstruation, age at first live birth, and age at menopause generally.
However, there was a tendency for an increased risk of Parkinson's Disease in those women who reached menopause when they were 55 or older. Current hormone users for less than 5 years showed a higher risk of developing Parkinson's Disease, which was anywhere between 11% more likely to more than twice as likely. However, this association disappeared for current hormone users after 5 years of use. Oral contraceptive use for ten years was associated with a lower risk of Parkinson's Disease, down to 59% of what would otherwise be expected. In order to refer to this article on its own click here.
20th December 2013 - New review
PESTICIDES ON AIRCRAFT AS A CAUSE OF PARKINSON'S DISEASE
Flight attendants who have developed Parkinson's Disease have taken legal action to try to prove that they have developed Parkinson's Disease because of the insecticides that are routinely sprayed inside aircraft. For more information go to News report and News report
Those pesticides that are known to cause, or be highly associated with Parkinson's Disease are Dieldrin, Rotenone and Organophosphorus pesticides. The fungicides Maneb and Paraquat are also known causes of Parkinson's Disease. Evidence in support of Permathrin, which is used in aircraft, is presently restricted to three animal studies.
Dieldrin levels are above normal in brains of people with Parkinson's Disease. Dieldrin was the most frequently detected Organochlorine pesticide in people with Parkinson's Disease thereby suggesting that dieldrin is associated with Parkinson's Disease. Organophosphorus pesticides are significantly associated with Parkinson's Disease. The frequent use of household pesticides containing Organophosphorus chemicals increased the chances of developing Parkinson's Disease by 71%. Exposure can lead to Parkinsonism. Rotenone can cause the neurochemical, neuropathological and behavioural features of Parkinson's disease, including hypokinesia and rigidity. In order to refer to this article on its own click here.
19th December 2013 - New book
DBS A PATIENT GUIDE TO DEEP BRAIN STIMULATION
Sierra M.Farris, Monique L.Giroux
Publisher's description : DBS A Patient Guide to Deep Brain Stimulation by DBS experts Sierra Farris and Monique Giroux distill a high tech brain surgery into understandable terms for every reader. The authors bring 14 yearsí experience working as a DBS team in treating over 1000 patients. Their easy to read format is packed with practical tips in a patient-centered approach. The authors hope to promote patient empowerment by offering insights that are rarely shared outside the clinic appointment. Filled with case studies, personal stories, practical tips and unique graphics, this book offers in-depth easy to understand explanations for one of the most high tech procedures that can turn back the clock on neurological disease. Click here for more details. For more books concerning Parkinson's Disease go to Parkinson's Disease Books
14th December 2013 - News release
ANTIBODIES FOR THE TREATMENT OF PARKINSON'S DISEASE
Roche and Prothena are collaborating to co-develop antibodies for the
treatment of Parkinson's Disease. Prothena's antibody for the
treatment of Parkinson's disease,
PRX002, targets alpha-synuclein. PRX002 is currently in
preclinical development. It is expected to enter Phase 1 clinical trials in
people with Parkinson's Disease in 2014. PRX002 has already been tested in
various cellular and animal models of synuclein-related disease.
10th December 2013 - New book
PARKINSON'S DISEASE TRAPPED - IT'S A GREY MATTER
Christopher C. Evans
Publisher's description : Parkinsonís disease 'Trapped' questions and expands our understanding of Parkinsonís disease. Accessible and meticulously researched, the observations illuminate the grey matter of brain science. It examines three regions of the brain and how these relate to symptoms of Parkinsonís disease, highlighting insights that lead to the discovery of a unique potential cause. Exploring the effects of trauma and lack of blood supply to the brain, it finds missing pieces of the Parkinsonís puzzle. This book explains why people, who smoke cigarettes, drink alcohol, have high cholesterol, and drink too much coffee are less likely to get Parkinson's disease. It presents a controversial three phase model of neurodegeneration. Click here for more details. For more books concerning Parkinson's Disease go to Parkinson's Disease Books