Related Experiment Video
Updated: Jul 2, 2025
08:19
Assessing Mitochondrial Function in Sciatic Nerve by High-Resolution Respirometry
Published on: May 5, 2022
2.5K
Nitrosative Stress in Autism: Supportive Evidence and Implications for Mitochondrial Dysfunction.
Richard E Frye1, Shannon Rose2, Irena Voinsky3
1Autism Discovery and Treatment Foundation, Southwest Autism Research and Resource Center, Rossignol Medical Center, Phoenix, AZ, 85006, USA.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|February 21, 2024
Summary
Nitric oxide (NO) is linked to autism spectrum disorder (ASD). Inhibiting neuronal nitric oxide synthase (nNOS) may offer new therapeutic strategies for improving ASD symptoms.
Area of Science:
- Neuroscience
- Biochemistry
- Autism Spectrum Disorder Research
Background:
- Emerging evidence suggests a significant role for nitric oxide (NO) in autism spectrum disorder (ASD).
- Previous studies indicate elevated levels of NO and its metabolites in individuals with ASD.
- Dysregulated nitric oxide synthase (NOS) activity may contribute to mitochondrial dysfunction observed in some individuals with ASD.
Purpose of the Study:
- To investigate the link between nitric oxide (NO) and autism spectrum disorder (ASD).
- To explore the potential of neuronal nitric oxide synthase (nNOS) inhibitors as a therapeutic approach for ASD.
Main Methods:
- The study, published in May 2023, established a novel link between NO and ASD.
- Analysis of NO and its metabolites (nitrite, peroxynitrite) in individuals with ASD.
Main Results:
- The study demonstrated a significant role of NO in ASD.
- Findings suggest NO dysregulation may be associated with mitochondrial dysfunction in ASD.
- NO impacts mitochondrial respiration and NOS activity.
Conclusions:
- Nitric oxide (NO) plays a significant role in autism spectrum disorder (ASD).
- Neuronal nitric oxide synthase (nNOS) inhibitors present a potential therapeutic avenue for ASD.
- Further research, including clinical trials, is needed to evaluate NOS modifiers for ASD treatment.
Keywords:
MT2ANO synthase (NOS)autism spectrum disorder (ASD)metallothioneinmitochondrial dysfunctionnitric oxide (NO)tetrahydrobiopterinMore Related Videos
Related Concept Videos
01:46Electron Transport Chain: Complex I and II
13.3K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
13.3K
01:45Mitochondrial Membranes
10.3K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
10.3K
01:19Autism Spectrum Disorder
92
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
92
01:48ATP Synthase: Mechanism
14.6K
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased...
14.6K
01:30Attention-Deficit/Hyperactivity Disorder
68
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
68
01:30The Electron Transport Chain
16.7K
The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
16.7K