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1 ine and creatine and lower concentrations of N-acetylaspartate.
2 creases in striatal choline and decreases in N-acetylaspartate.
3 natomical volume, fractional anisotropy, and N-acetylaspartate.
4 magnetic resonance spectroscopy measures of N-acetylaspartate.
5 eatine, and NAAG was expressed as a ratio to N-acetylaspartate.
6 ipsilesional PMd myo-inositol and lower SMA N-acetylaspartate.
7 .93 and 0.93 for creatine, 0.93 and 0.93 for N-acetylaspartate, 0.80 and 0.72 for myo-inositol, and 0
8 e and branched chain amino acids, generating N-acetylaspartate; (2) the alanine-generating Cahill-cyc
13 t cancer cells, including elevated levels of N-acetylaspartate, a metabolite primarily associated wit
14 udy was to determine if the concentration of N-acetylaspartate, a neuronal and axonal marker, was low
18 conclude that there is an early reduction in N-acetylaspartate and an increase in choline compounds i
19 tent was seen with weak associations between N-acetylaspartate and aspartate and glutamate and aspart
20 sonance spectroscopy studies have shown that N-acetylaspartate and choline-containing compounds can p
21 MRS voxels, suggesting that the hippocampal N-acetylaspartate and creatine alterations were not an a
22 trated significantly lower concentrations of N-acetylaspartate and creatine but normal choline concen
23 sed to measure the relative concentration of N-acetylaspartate and creatine, a marker of neural integ
25 There was no association between level of N-acetylaspartate and duration of illness or medication
27 significant association between hippocampal N-acetylaspartate and glutamate content was seen with we
28 yl-L-aspartyl-L-glutamate (NAAG), to produce N-acetylaspartate and glutamate following the synaptic r
32 individuals also showed greater decreases in N-acetylaspartate and in brain volume over 1 year of fol
33 scan, we simultaneously obtained 3D maps of N-acetylaspartate and lactate at a nominal spatial resol
34 gnetic resonance imaging and measurements of n-acetylaspartate and lactate using chemical shift magne
39 to quantify gray matter volume (GMV) and the N-acetylaspartate and N-acetylaspartylglutamate/creatine
40 ect, quantitative link between a decrease in N-acetylaspartate and neuronal loss in a human neurodege
41 compared with sham tDCS, elevated prefrontal N-acetylaspartate and striatal glutamate + glutamine but
42 onger lasting effects of elevated prefrontal N-acetylaspartate and striatal glutamate + glutamine lev
43 artylglutamate (NAAG) to yield glutamate and N-acetylaspartate and that has been hypothesized to infl
46 metabolites: the exclusively neuronal/axonal N-acetylaspartate, and the predominantly glial creatine
47 spectroscopic ((1)H-MRS) imaging (to measure N-acetylaspartate as a marker of neuronal pathology) and
48 netic resonance spectroscopy measurements of N-acetylaspartate as an axon-specific monitor of central
49 late levels of the neuronal viability marker N-acetylaspartate as measured with in vivo proton magnet
52 levels of occipital cortex GABA, glutamate, N-acetylaspartate, aspartate, creatine, and choline-cont
54 The finding of reduced concentrations of N-acetylaspartate bilaterally suggests neuronal dysfunct
55 ne and phosphocreatine (Cho/Cr), and choline-N-acetylaspartate (Cho/NAA) ratios were obtained in the
59 asure cerebral neurochemical concentrations (N-acetylaspartate, choline, glutamate, glutamine, myo-in
62 ique permits the simultaneous measurement of N-acetylaspartate, choline-containing compounds, creatin
66 rain injury (DCBI) as assessed from relative N-acetylaspartate concentration (a marker of axonal inte
67 ant association between illness duration and N-acetylaspartate concentration in the right hippocampus
68 o a significant negative correlation between N-acetylaspartate concentration in the right hippocampus
69 rim assessments, mean normalized measures of N-acetylaspartate concentration tended to be higher in t
70 at female alcoholics had significantly lower N-acetylaspartate concentrations (-10.73%) relative to f
72 We found significantly elevated creatine/N-acetylaspartate (Cr/NAA) unilaterally in 8 and bilater
75 Magnetic resonance spectroscopy measures of N-acetylaspartate-creatine and phosphocreatine (NAA/Cr),
77 magnetic resonance spectroscopic findings of N-acetylaspartate/creatine in frontal gray matter (r = -
78 e group exhibited a significant reduction of N-acetylaspartate/creatine levels in the right dorsolate
79 ) = -0.17, beta-(right) = -0.15, ps = .002), N-acetylaspartate/creatine ratio (beta-(left)= -0.40, be
80 ifferences were greater at younger ages, and N-acetylaspartate/creatine ratio differences were greate
82 anxiety disorder patients had a 16.5% higher N-acetylaspartate/creatine ratio in the right dorsolater
84 RI), proton magnetic resonance spectroscopy (N-acetylaspartate/creatine ratio), and functional MRI ac
85 associated with asymmetric increases in the N-acetylaspartate/creatine ratio, a suggested marker of
86 patients reporting childhood abuse had lower N-acetylaspartate/creatine ratios in the right dorsolate
88 At both the early and late time points the N:-acetylaspartate/creatine ratio (NAA/Cr) was significa
89 After transection at postnatal day 4, total N-acetylaspartate decreased by 80% (P14; p = 0.002) and
90 R spectroscopy marker of neuronal viability, N-acetylaspartate, did not differ between patients and c
92 hose with GBM (which include lipid, alanine, N-acetylaspartate, gamma-aminobutyric acid, glutamine an
94 mpal neuron loss and the cellular content of N-acetylaspartate, glutamate, GABA, glutamine, or aspart
95 igodendrocyte abnormalities, decreased total N-acetylaspartate highlights neuronal health disturbance
96 c findings showed a significant reduction of N-acetylaspartate in all parts of the cerebellum, a sign
98 ylaspartate levels, and that 5 to 20% of the N-acetylaspartate in developing white matter is synthesi
99 temporal (p = 0.008) white matter; (2) lower N-acetylaspartate in frontal gray matter (p = 0.01); and
100 male alcoholics exhibited significantly less N-acetylaspartate in frontal gray matter relative to fem
103 uced AN activation and lower neuronal marker N-acetylaspartate in prefrontal and parietal cortices.
105 explained by higher-than-expected levels of N-acetylaspartate in the healthy female comparison group
106 Relative levels of choline, creatine, and N-acetylaspartate in the left and right caudate, putamen
107 iminary study provides support for decreased N-acetylaspartate in the left frontal lobe in schizophre
109 tudies with schizophrenia show reductions in N-acetylaspartate in the medial temporal and prefrontal
110 h ALS also had significantly lower levels of N-acetylaspartate in the motor cortex (P < .01), subcort
111 naive patients with ALS had higher levels of N-acetylaspartate in the motor cortex than did riluzole-
113 hite matter in all patients and reduction of N-acetylaspartate in the unaffected frontal white matter
115 e possibility has been raised, however, that N-acetylaspartate is expressed also by oligodendroglial
118 accompanying lower and increasingly abnormal N-acetylaspartate levels relative to those of typically
120 Older subjects in both groups had lower N-acetylaspartate levels than the respective younger sub
122 dicate that neuronal adaptation can increase N-acetylaspartate levels, and that 5 to 20% of the N-ace
123 rial oxidative stress, and maintains ATP and N-acetylaspartate levels, resulting in attenuated infarc
126 c resonance imaging; brain concentrations of N-acetylaspartate, measured with proton magnetic resonan
127 etastatic potential, modulates glutamine and N-acetylaspartate metabolism in IBC cells in vitro, reve
128 F in the ASD group correlated inversely with N-acetylaspartate metabolite levels throughout the front
130 related to neuronal and glial compartments: N-acetylaspartate, myo-inositol, and glutamate/glutamine
131 f glutamine (Gln), glutamate (Glu), Gln/Glu, N-acetylaspartate, myo-Inositol, lactate, and alanine.
134 glutamatergic metabolites, myo-inositol, and N-acetylaspartate+N-acetylaspartylglutamate (tNAA) in th
135 s had significantly higher concentrations of N-acetylaspartate, N-acetylaspartylglutamate, and aspart
136 for excitatory neurotransmission, including N-acetylaspartate, N-acetylaspartylglutamate, aspartate,
137 ltaneous measurement of compounds containing N-acetylaspartate (NA), choline (Cho), creatine-phosphoc
138 tio of choline-containing compounds [Cho] to N-acetylaspartate [NA] p< or =0.01) and right cerebellum
139 s ratios of different metabolite peak areas (N-acetylaspartate [NA]/creatine [Cr], NA/choline [Ch], a
140 images, and normalized the concentrations of N-acetylaspartate (NAA) and choline (Cho) in each ROI to
141 utcomes, P=.001) and with decreased absolute N-acetylaspartate (NAA) and choline concentrations in al
145 ine (tCr), choline (Cho), myo-inositol (mI), N-acetylaspartate (NAA) and glutamate/glutamine (Glx) we
146 dy found BD subjects to have lower levels of N-acetylaspartate (NAA) and glycerophosphocholine plus p
147 ion into white or gray brain matter based on N-acetylaspartate (NAA) and on membrane-derived complex
148 netic resonance spectroscopic measurement of N-acetylaspartate (NAA) and other metabolites, together
149 he brain to observe natural 13C abundance of N-acetylaspartate (NAA) and the appearance of 13C-labele
150 analysis could not be done because thalamic N-acetylaspartate (NAA) concentration alone accurately p
151 We found that atrophy-corrected hippocampal N-acetylaspartate (NAA) concentration was lower in cogni
154 ansferase 8-like) catalyzes the formation of N-acetylaspartate (NAA) from acetyl-CoA and aspartate.
155 hod involves: (a) chemical synthesis of [14C]N-acetylaspartate (NAA) from L-[14C]Asp; (b) use of [14C
156 coefficients (ADC) of choline, creatine, and N-acetylaspartate (NAA) in two brain regions: the thalam
161 e spectroscopy (MRS) studies have shown that N-acetylaspartate (NAA) is reduced not only in the ipsil
166 decades have indicated that biosynthesis of N-acetylaspartate (NAA) occurs primarily in the mitochon
167 (rCBV) represented elevated choline (Cho)-to-N-acetylaspartate (NAA) ratio (hereafter, Cho/NAA ratio)
168 ellular and extract data have suggested that N-acetylaspartate (NAA) reflects neuronal mitochondrial
169 talyzes the hydrolysis of neuronally derived N-acetylaspartate (NAA) to acetate and aspartic acid.
170 ubjects showed significantly lower ratios of N-acetylaspartate (NAA) to choline-containing compounds
172 SPA; EC 3.5.1.15) catalyzes deacetylation of N-acetylaspartate (NAA) to generate free acetate in the
173 study, diffusion of the neuronal metabolite N-acetylaspartate (NAA) was measured in the human normal
174 trast, the apparent diffusion coefficient of N-acetylaspartate (NAA) was significantly elevated, sugg
175 with and without reduced signal intensity of N-acetylaspartate (NAA) was visible on metabolic images
177 te maps of creatine (Cr), choline (Cho), and N-acetylaspartate (NAA) were segmented into 81 regions w
179 We hypothesize that white matter levels of N-acetylaspartate (NAA), a chemical involved in the meta
180 study used MRS to examine concentrations of N-acetylaspartate (NAA), a marker of neuronal integrity
183 to assess glutamate (Glu), glutamine (Gln), N-acetylaspartate (NAA), and choline (Cho) levels in the
184 pectroscopy, we found lower brain glutamate, N-acetylaspartate (NAA), and creatine concentrations in
185 stribution of the metabolites choline (Cho), N-acetylaspartate (NAA), and creatine were calculated in
186 of the energy state (ATP, ATP-catabolites), N-acetylaspartate (NAA), antioxidant defenses (ascorbic
187 ain Glu on neuroaxonal integrity measured by N-acetylaspartate (NAA), brain volume, and clinical outc
188 culate absolute metabolite concentrations of N-acetylaspartate (NAA), choline (Cho) and creatine (Cr)
194 solute concentrations of neurometabolite for N-acetylaspartate (NAA), choline, creatine, and lactate
195 e) nonsmokers (n = 30) and smokers (n = 35), N-acetylaspartate (NAA), choline-containing compounds, c
197 examined with H-1 MR spectroscopy to measure N-acetylaspartate (NAA), creatine (Cr), and choline (Cho
198 y to measure absolute rostral and caudal ACC N-acetylaspartate (NAA), creatine (Cr), and choline (Cho
199 terials and Methods: The T2 distributions of N-acetylaspartate (NAA), creatine (Cr), and choline (Cho
200 We measured concentrations and ratios of N-acetylaspartate (NAA), creatine and phosphocreatine (C
202 tients displayed some combination of reduced N-acetylaspartate (NAA), enhanced glutamate/glutamine (G
205 ically significant decrease in the levels of N-acetylaspartate (NAA), myo-inositol (mI), scyllo-inosi
207 nd phosphocreatine, glutamine and glutamate, N-acetylaspartate (NAA), myo-inositol, and lactate.
208 phocreatine/EPP (both p < 0.05); for lactate/N-acetylaspartate (NAA), only xenon-augmented hypothermi
209 resonance spectroscopy to measure prefrontal N-acetylaspartate (NAA), which is mainly localized in ne
212 breaks, Scans 1-2) with thalamic volumes and N-acetylaspartate (NAA)/choline (Cho), and fractional an
214 ophy scores and single voxel (basal ganglia) N-acetylaspartate (NAA)/Choline, NAA/Creatine and myo-in
215 nd a loss of correlation between hippocampal N-acetylaspartate (NAA)/Cr and Glx/Cr in patients with s
216 bolite concentrations as ratios to creatine (N-acetylaspartate (NAA)/creatine (Cr) and choline (Cho)/
219 ignificantly decreased the medial prefrontal N-acetylaspartate (NAA; p = 0.043) and glutamate-glutami
220 oscopic imaging (MRSI) measurements of brain N:-acetylaspartate (NAA), a marker of axonal integrity,
221 metric, metabolite maps (choline, creatine, N-acetylaspartate [NAA], and/or citrate), and statistica
222 xel, 20-msec-echo-time MR spectra (including N-acetylaspartate [NAA], choline [Ch], creatine and phos
223 vo measure of prefrontal neuronal pathology (N:-acetylaspartate [NAA] levels) in patients with schizo
224 myelin content and DTS to study metabolite (N-acetylaspartate, NAA) diffusion within axons in patien
225 ies of N-acetyl-containing compounds (mainly N-acetylaspartate, NAA), choline-containing compounds (C
227 ampal atrophy, hypometabolism, and decreased N-acetylaspartate, often attributed to neuron loss and g
228 nce spectroscopy to assess concentrations of N-acetylaspartate, often considered a marker of neuronal
229 3)(-), together with citrate, aspartate, and N-acetylaspartate on human prostate cancer tissues.
230 induce differences in glutamate + glutamine, N-acetylaspartate, or gamma-aminobutyric acid levels in
232 lude small metabolites such as adenosine and N-acetylaspartate previously associated with astrocytes
233 e increase in glutamate + glutamine to total N-acetylaspartate ratio during ketamine infusion compare
236 correlated with: (1) lower concentrations of N-acetylaspartate (spectroscopic marker of neuronal viab
237 trated significantly lower concentrations of N-acetylaspartate than the comparison subjects in both t
238 Measured concentrations of putaminal total N-acetylaspartate (tNAA) (8.1 +/- 0.2 vs 9.4 +/- 0.4; P
239 ontaining metabolites (tCho) and lower total N-acetylaspartate (tNAA) were associated with higher ora
241 and wild-type gliomas (eg, tumoral Glu/total N-acetylaspartate [tNAA], P = .0054), oligodendroglioma
242 isease had a decrease of 10% in the ratio of N-acetylaspartate to choline (P=0.003), an increase of 2
245 proton magnetic resonance spectroscopy (MRS; N-acetylaspartate to creatine (NAA/Cr) ratios)-derived h
246 The marked difference in the distribution of N-acetylaspartate to creatine between PPA and Alzheimer'
247 a statistically significant decrease in the N-acetylaspartate to creatine ratio in gray matter compa
248 In the PPA group, there was an asymmetrical N-acetylaspartate to creatine ratio reduction compared w
250 eurofilament light chain (NFL), the ratio of N-acetylaspartate to creatinine levels (a magnetic reson
251 = 0.555 and P < .001) and with the ratio of N-acetylaspartate to creatinine levels in parietal gray
255 ongest association observed was that between N-acetylaspartate-to-myo-inositol ratio and Braak stage
258 mediated process that may explain decreased N-acetylaspartate, volume loss, and the poor outcomes of
261 thalamic N-acetylaspartate and left thalamic N-acetylaspartate were significantly correlated in the p
262 frontal lobe white matter concentrations of N-acetylaspartate were significantly lower (-8.8%) than