Neuronal nitric oxide synthase immunoreactivity in the spinal cord in amyotrophic lateral sclerosis

2001 ◽  
Vol 101 (4) ◽  
pp. 351-357 ◽  
Author(s):  
Shoichi Sasaki ◽  
Noriyuki Shibata ◽  
Makoto Iwata
Keyword(s):  
Nitric Oxide ◽  
Spinal Cord ◽  
Amyotrophic Lateral Sclerosis ◽  
Nitric Oxide Synthase ◽  
Neuronal Nitric Oxide Synthase ◽  
Oxide Synthase ◽  
Lateral Sclerosis

scholarly journals Differences of Transport Activity of Arginine and Regulation on Neuronal Nitric Oxide Synthase and Oxidative Stress in Amyotrophic Lateral Sclerosis Model Cell Lines

Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3554
Author(s):  
Sana Latif ◽  
Young-Sook Kang
Keyword(s):  
Nitric Oxide ◽  
Amyotrophic Lateral Sclerosis ◽  
Amino Acid ◽  
Nitric Oxide Synthase ◽  
Cell Lines ◽  
Neuronal Nitric Oxide Synthase ◽  
Transport Activity ◽  
Arginine Uptake ◽  
Oxide Synthase ◽  
Lateral Sclerosis

L-Arginine, a semi-essential amino acid, was shown to delay dysfunction of motor neurons and to prolong the lifespan, upon analysis of transgenic mouse models of amyotrophic lateral sclerosis (ALS). We investigated the transport function of arginine and neuronal nitric oxide synthase (nNOS) expression after pretreatment with L-arginine in NSC-34 hSOD1WT (wild-type, WT) and hSOD1G93A (mutant-type, MT) cell lines. [3H]L-Arginine uptake was concentration-dependent, voltage-sensitive, and sodium-independent in both cell lines. Among the cationic amino acid transporters family, including system y+, b0,+, B0,+, and y+L, system y+ is mainly involved in [3H]L-arginine transport in ALS cell lines. System b0,+ accounted for 23% of the transport in both cell lines. System B0,+ was found only in MT, and whereas, system y+L was found only in WT. Lysine competitively inhibited [3H]L-arginine uptake in both cell lines. The nNOS mRNA expression was significantly lower in MT than in WT. Pretreatment with arginine elevated nNOS mRNA levels in MT. Oxidizing stressor, H2O2, significantly decreased their uptake; however, pretreatment with arginine restored the transport activity in both cell lines. In conclusion, arginine transport is associated with system y+, and neuroprotection by L-arginine may provide an edge as a possible therapeutic target in the treatment of ALS.

Induction of spinal cord neuronal nitric oxide synthase (NOS) after formalin injection in the rat hind paw

1996 ◽  
Vol 210 (3) ◽  
pp. 201-204 ◽  
Author(s):  
H.H.D. Lam ◽  
D.F. Hanley ◽  
B.D. Trapp ◽  
S. Saito ◽  
S. Raja ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Spinal Cord ◽  
Nitric Oxide Synthase ◽  
Neuronal Nitric Oxide Synthase ◽  
Formalin Injection ◽  
Oxide Synthase
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