💬In plain words
What the trial is, and whether it could suit you
Parkinson's disease is a progressive neurological disorder associated with severe dopaminergic neuron loss in the substantia nigra pars compacta. The decrease in dopamine cells in the gut in Parkinson's disease negatively affects bowel movements, and constipation is a common condition. Impairment of the intestinal barrier increases inflammation. Reactive oxygen species increase, and intestinal homeostasis changes. Alpha-synuclein levels increase in the gut. L-theanine is the most abundant amino acid in green tea leaves. Parkinson's patients exhibit increased oxidative stress along with decreased activity of glutathione peroxidase, superoxide dismutase, and catalase. L-theanine is believed to increase the activity of these enzymes and reduce oxidative stress. L-theanine administration has been found to increase total short-chain fatty acids in stool. Furthermore, it is suggested that L-th
Sign in to get the eligibility rules as simple questions to take to your doctor.
📋 Eligibility rules (as published)
Inclusion Criteria:
Patients diagnosed with Parkinson's Disease and classified as stage 1 according to the Hoehn-Yahr Staging (HYA), Patients without communication impairment (aphasia) Participants who sign the Informed Consent Form and volunteer to participate in the study Absence of dementia and Mini Mental State Examination (MMSE) score \> 24 Living in the same household with a healthy spouse/partner Not taking prebiotic, fiber, probiotic, herbal, or high-dose vitamin or mineral supplements that may affect inflammation during the pre-onset period and throughout the study protocol
Exclusion Criteria:
Patients with a history of severe heart, lung, liver, or kidney failure, primary psychiatric, developmental, or other neurological disease Patients using sedative/hypnotic medications Individuals consuming more than 200 mg of caffeine per day (approximately 2-3 cups of tea or 1 cup of coffee) Patients who smoke and consume alcohol Having undergone surgery related to bowel health Having a chronic infectious bowel disease Having a congenital bowel anomaly Using probiotics, antifungals, and/or antibiotics within the last three months Individuals with an autoimmune disease or weakened immune system Self-reported alcohol or drug use within the last 3 months Current use of over-the-counter medications, supplements, foods, and/or beverages that may affect stress, sleep, cognition, and/or mood Inability to swallow the study supplement due to swallowing anxiety Receiving treatment for a GI disease or condition diagnosed by a doctor other than constipation, gastroparesis, gastroesophageal reflux disease, or diverticular disease Positive results for human immunodeficiency virus (HIV) or Hepatitis B/C. Current history of active conditions of inflammatory bowel disease, irritable bowel syndrome, colitis, celiac disease, short bowel syndrome, colostomy, colectomy, gastrointestinal fistula, or strictures.
Recent or current use of any antibiotic (within 4 weeks prior to the start of the study) Use of enemas or suppositories to relieve constipation Good adherence to the Mediterranean diet in the pre-start period according to the 14-item Mediterranean Diet Assessment Tool (score \>6)
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