Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

8.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
8.5K
Drugs Affecting Neurotransmitter Synthesis01:29

Drugs Affecting Neurotransmitter Synthesis

2.0K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
2.0K
Desensitization and Tachyphylaxis01:20

Desensitization and Tachyphylaxis

2.9K
Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
2.9K
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists01:29

Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists

753
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
753
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

28.2K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.2K
The Photochemical Reaction Center01:29

The Photochemical Reaction Center

5.1K
Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
5.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Differential pathological dynamics triggered by distinct Parkinson patient-derived α-synuclein extracts in nonhuman primates.

Science advances·2025
Same author

Nigrostriatal iron accumulation in the progression of Parkinson's disease.

NPJ Parkinson's disease·2025
Same author

Dopaminergic denervation and associated MRI microstructural changes in the nigrostriatal projection in early Parkinson's disease patients.

NPJ Parkinson's disease·2023
Same author

Identification of distinct pathological signatures induced by patient-derived α-synuclein structures in nonhuman primates.

Science advances·2020
Same author

Author Correction: Computer keyboard interaction as an indicator of early Parkinson's disease.

Scientific reports·2018
Same author

Interruption of measles transmission in Gipuzkoa (Basque Country), Spain.

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin·2017
Same journal

Factors Associated With Disability Improvement and Worsening Independent of Attacks in Patients With AQP4-IgG+ NMOSD and MOGAD: A Multicenter Cohort Study.

Neurology·2026
Same journal

Cost-Effectiveness of Intracranial Aneurysm Screening: A Systematic Review.

Neurology·2026
Same journal

Rare Eating Epilepsy: Co-Occurrence of Focal Cortical Dysplasia and Gray Matter Heterotopia.

Neurology·2026
Same journal

Spatiotemporal Associations Between Cortical Microinfarcts and Cortical Superficial Siderosis in Cerebral Amyloid Angiopathy.

Neurology·2026
Same journal

Blood-Brain Barrier Disruption Before Interhospital Transfer for Thrombectomy and Clinical Outcome.

Neurology·2026
Same journal

At Death's Door: Cytosolic Dopamine in Patients With Parkinson Disease.

Neurology·2026
See all related articles

Related Experiment Video

Updated: Jan 3, 2026

Electrophysiological Methods for Measuring Photopigment Levels in Drosophila Photoreceptors
08:09

Electrophysiological Methods for Measuring Photopigment Levels in Drosophila Photoreceptors

Published on: June 2, 2022

2.6K

Dopaminergic photosensitivity

J A Obeso, J Artieda, J M Martinez-Lage

    Neurology
    |April 1, 1991
    PubMed
    Summary

    No abstract available in PubMed .

    More Related Videos

    Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease
    05:51

    Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

    Published on: October 14, 2021

    4.3K
    Investigating Migraine-Like Behavior Using Light Aversion in Mice
    05:23

    Investigating Migraine-Like Behavior Using Light Aversion in Mice

    Published on: August 11, 2021

    4.3K

    Related Experiment Videos

    Last Updated: Jan 3, 2026

    Electrophysiological Methods for Measuring Photopigment Levels in Drosophila Photoreceptors
    08:09

    Electrophysiological Methods for Measuring Photopigment Levels in Drosophila Photoreceptors

    Published on: June 2, 2022

    2.6K
    Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease
    05:51

    Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease

    Published on: October 14, 2021

    4.3K
    Investigating Migraine-Like Behavior Using Light Aversion in Mice
    05:23

    Investigating Migraine-Like Behavior Using Light Aversion in Mice

    Published on: August 11, 2021

    4.3K