Effect of 6-fluoro-m-tyrosine on dopamine release and metabolism in rat striatum using in vivo microdialysis.
نویسندگان
چکیده
6-[(18)F]Fluoro-m-tyrosine (FMT) is a positron emission tomography (PET) imaging agent for the aromatic L-amino acid decarboxylase enzyme. Its parent compound, L-m-tyrosine (LMT) induces behavioral effects in rodents via dopamine release. To assess the potential pharmacologic effect of FMT, its role in dopamine release and metabolism in rat striatum was compared with LMT and L-DOPA using in vivo microdialysis. Results indicate that FMT will not have the same dopamine-induced behavioral effects as LMT.
منابع مشابه
The effect of aging on dopamine release and metabolism during sevoflurane anesthesia in rat striatum: an in vivo microdialysis study.
We have previously reported that halothane anesthesia increases extracellular concentrations of dopamine (DA) metabolites in rat striatum using in vivo microdialysis techniques. Aging induces many changes in the brain, including neurotransmission. However, the relationship between aging and changes in neurotransmitter release during inhalational anesthesia has not been fully investigated. The a...
متن کاملMicrodialysis in the Rat Striatum: Effects of 24 h Dexamethasone Retrodialysis on Evoked Dopamine Release and Penetration Injury
The power of microdialysis for in vivo neurochemical monitoring is a result of intense efforts to enhance microdialysis procedures, the probes themselves, and the analytical systems used for the analysis of dialysate samples. Our goal is to refine microdialysis further by focusing attention on what happens when the probes are implanted into brain tissue. It is broadly acknowledged that some tis...
متن کاملEffects of midazolam and flunitrazepam on the release of dopamine from rat striatum measured by in vivo microdialysis.
We have studied the effects of midazolam and flunitrazepam on extracellular concentrations of dopamine, 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) in rat striatum in freely moving animals using in vivo microdialysis. I.v. injections of midazolam 0.075 and 0.15 mg kg-1 decreased striatal dopamine concentrations in a dose-dependent manner without affecting the concentratio...
متن کاملاثر دویدن روی نوارگردان بر سطح IGF-1 در جسم مخطط موش‌های پارکینسونی شده با القای 6-هیدروکسی دوپامین
Background & Aims: There is no agreement on the protective effect of exercise on neurodegeneration processes, and the mechanisms responsible for exercise benefits in Parkinson disease (PD) yet. In this study we investigated the protective effect of 4 weeks of treadmill running with low intensity on the IGF-1, dopamine and tyrosine hydroxylase levels in the striatum of parkinsonian rats ind...
متن کاملMorphine releases glutamate through AMPA receptors in the ventral tegmental area: a microdialysis study in conscious rats
Drug addiction has developed to a social illness. Changes in glutamate transmission have been recorded by the repeated administration of addictive drugs into VTA. In this investigation, In vivo microdialysis was used to study the effects of morphine on glutamate release from the ventral tegmentum area (VTA) in freely moving rats. Rats were anesthetized with chloral hydrate (350 mg/kg, i.p.) and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Brain research
دوره 884 1--2 شماره
صفحات -
تاریخ انتشار 2000