Catarina Silva, MSc,  —

With over three years of experience in the medical communications business, Catarina holds a BSc. in Biomedical Sciences and a MSc. in Neurosciences. Apart from writing, she has been involved in patient-oriented translational and clinical research.

Articles by Catarina Silva

Bacteria in Gut Can Promote Parkinson’s by Altering Brain’s Immune Reactions, Study Says

Bacterial infections in the intestines may trigger Parkinson’s progression by altering the immune system and damaging dopaminergic neurons, according to an early study supporting a “gut-brain” connection in this disease. The findings, “Intestinal infection triggers Parkinson’s disease-like symptoms in Pink1−/− mice,” were published as a letter in…

Oxidative Stress Seen Promote Spread of Toxic Alpha-Synuclein Across Cells, Possibly Trigger Disease

Oxidative stress may be a trigger for Parkinson’s and can promote its progression by facilitating the spread of toxic alpha-synuclein protein across cells, researchers report. Their study, “Oxidative stress in vagal neurons promotes parkinsonian pathology and intercellular α-synuclein transfer,” was published in the Journal of Clinical Investigation. Parkinson’s is…

High Levels of Zinc Found in Hair of Parkinson’s Patients with Depression, Psychiatric Symptoms, Study Says

Parkinson’s disease patients with either depression or psychiatric symptoms such as hallucinations, confusion, or illusion may have higher levels of the mineral zinc in their hair, researchers report. Their study, “Higher zinc concentrations in hair of Parkinson’s disease are associated with psychotic complications and depression,” was published in…

Brain Changes Might Predict Parkinson’s Mild Cognitive Impairment

Early atrophy of a speech-related brain area called temporal lobe and progressive degeneration of a cognitive one (frontal lobe) might be warning signs for Parkinson’s mild cognitive impairment later on, researchers report. Their study, “Progressive brain atrophy in Parkinson’s disease patients who convert to mild cognitive impairment,” was…

Specific Form of Alpha-Synuclein Linked to More Severe Parkinson’s Symptoms in Early Study

Small amounts of a particular form of alpha-synuclein, known as beta-sheet, may cause a significant loss of dopamine-releasing neurons by recruiting more alpha-synuclein molecules, leading to Parkinson’s-like symptoms and disease progression, according to a recent lab study. The study, “Defining α-synuclein species responsible for Parkinson disease phenotypes…

Cannabinoid-based Possible Treatment for Parkinson’s, EHP-102, Seen as Superior to New Molecules in Early Test

Emerald Health Pharmaceuticals announced that two of its cannabinoid-derived candidates — CBGA-Q and CBGA-Q-Na Salt — showed anti-inflammatory and neuroprotective effects in a mouse model of Parkinson’s disease. However, these benefits were not superior to those obtained from treatment with the company’s already patented EHP-102 compound. The findings,…

Your Parkinson’s Community

Woman laying down illustration

Visit the Parkinson’s News Today forums to connect with others in the Parkinson’s community.

View Forums