Marker of nitric oxide production | Assessment point | HIV-1 positive | HIV negative | Community controls | ||||
Fe pos (Sgr I) n = 54 | Fe neg (Sgr II) n = 54 | Fe pos (Sgr III) | Fe neg (Sgr IV) | (Sgr V) | ||||
Category of ARI on follow up | Category of ARI on follow up |
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PT n = 38 | non-PT n = 16 | PT n = 10 | non-PT n = 44 | n = 30 | n = 50 | n = 40 | ||
Nitrite (µM) | En | 1.1 ± 0.6‽‡ | 2.6 ± 0.4‽ | 20.2 ± 6.6#§ | 12.8 ± 3.5# | 1.3 ± 0.8‽ | 5.2 ± 3.8 | 4.4 ± 2.6 |
Fu | 56.6 ± 16.2* | 32.8 ± 13.5* | 36.4 ± 10.8* | 22.4 ± 5.6* | NA | NA | NA | |
Citrulline (µM) | En | 4.2 ± 2.1‽‡ | 8.2 ± 2.6‽ | 46.2 ± 19.6#§ | 31.8 ± 12.4# | 5.2 ± 3.1‽ | 24 ± 7.4 | 20 ± 8.6 |
Fu | 82.4 ± 10.6* | 56.6 ± 12.4* | 60.4 ± 8.2* | 52.4 ± 8.2* | NA | NA | NA | |
Neopterin (nM) | En | 0.8 ± 0.3‽‡ | 1.2 ± 0.6‽ | 22.4 ± 3.4#§ | 12.1 ± 5.2# | 0.9 ± 0.24‽ | 2.6 ± 2.4 | 6.8 ± 3.4 |
Fu | 19.4 ± 6.6* | 14.6 ± 4.4* | 38.4 ± 8.2* | 28.4 ± 6.4* | NA | NA | NA |