Introduction
Materials and methods
Materials
Drug administration
Micro-segmental analysis
Data analysis
Effects of washing of hair surfaces
Results
Localization of simultaneously administered drugs in one scalp hair
Comparison of drug distribution profiles in scalp hair strands according to administration routes
DPb | DDPb | Metabolite Ratio (%)c | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Hair IDa | CR | CT | CT/CR | WR | DR-T | CR | CT | CT/CR | WR | DR-T | |
Topical application | |||||||||||
ALS-11 | 113 | 63 | 0.56 | 7 | 7 | 23 | 16 | 0.67 | 9 | 7 | 21 |
ALS-12 | 406 | 214 | 0.53 | 9 | 7 | 56 | 22 | 0.39 | 7 | 7 | 14 |
ALS-13 | 372 | 211 | 0.57 | 13 | 8 | 54 | 19 | 0.36 | 9 | 5 | 15 |
ALS-21 | 93 | 43 | 0.46 | 7 | 6 | 18 | 11 | 0.60 | 5 | 10 | 20 |
ALS-22 | 435 | 172 | 0.40 | 11 | 6 | 60 | 9 | 0.15 | 5 | 7 | 14 |
APS-31 | 599 | 279 | 0.47 | 9 | 5 | 67 | 34 | 0.51 | 7 | 6 | 11 |
APS-32 | 334 | 291 | 0.87 | 7 | 5 | 29 | 37 | 1.28 | 9 | 5 | 9 |
BPS-11 | 313 | 101 | 0.32 | 3 | 7 | 43 | 16 | 0.37 | 3 | 6 | 14 |
BPS-12 | 420 | 228 | 0.54 | 7 | 8 | 47 | 14 | 0.29 | 3 | 8 | 11 |
BPS-13 | 526 | 259 | 0.49 | 7 | 6 | 47 | 22 | 0.48 | 7 | 6 | 9 |
BPS-21 | 72 | 30 | 0.42 | 3 | 7 | 12 | 10 | 0.79 | 5 | 6 | 17 |
BPS-22 | 660 | 273 | 0.41 | 7 | 7 | 72 | 28 | 0.39 | 7 | 6 | 11 |
Average ± SD | 362 ± 192 | 180 ± 97 | 0.50 ± 0.14 | 7.5 ± 2.8 | 6.6 ± 1.0 | 44 ± 20 | 20 ± 9 | 0.52 ± 0.30 | 6.3 ± 2.1 | 6.6 ± 1.4 | 14 ± 4 |
Oral administration | |||||||||||
AOS-41 | 406 | 79 | 0.19 | 5 | 7 | 440 | 127 | 0.29 | 5 | 6 | 108 |
AOS-42 | 279 | 59 | 0.21 | 5 | 6 | 323 | 104 | 0.32 | 7 | 6 | 116 |
AOS-51 | 2534 | 244 | 0.10 | 5 | 6 | 1145 | 166 | 0.15 | 5 | 6 | 45 |
BOS-31 | 1150 | 360 | 0.31 | 5 | 6 | 751 | 304 | 0.40 | 7 | 6 | 65 |
BOS-32 | 1655 | 431 | 0.26 | 5 | 6 | 1072 | 341 | 0.32 | 7 | 6 | 65 |
Average ± SD | 1205 ± 931 | 234 ± 165 | 0.21 ± 0.08 | 5.0 ± 0.0 | 6.2 ± 0.4 | 746 ± 367 | 208 ± 107 | 0.30 ± 0.09 | 6.2 ± 1.1 | 6.0 ± 0.0 | 80 ± 31 |
LDb | DLDb | Metabolite ratio (%)c | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Hair IDa | CR | CT | CT/CR | WT | DR-T | CR | CT | CT/CR | WT | DR-T | |
Topical application | |||||||||||
ALS-11 | –d | 45 | – | 5 | 7 | – | 64 | – | 5 | 7 | 141 |
ALS-12 | 29 | 46 | 1.6 | 3 | 8 | 11 | 56 | 5.1 | 9 | 5 | 122 |
ALS-13 | 16 | 47 | 2.9 | 5 | 7 | 7 | 73 | 10.8 | 3 | 6 | 153 |
ALS-21 | – | 20 | – | 3 | 8 | – | 22 | – | 3 | 10 | 113 |
ALS-22 | 50 | 25 | 0.5 | 5 | 6 | 25 | 46 | 1.8 | 3 | 6 | 186 |
APS-31 | 61 | 95 | 1.6 | 1 | 8 | 14 | 72 | 5.2 | 7 | 5 | 76 |
APS-32 | 6 | 70 | 12.2 | 5 | 7 | – | 64 | – | 3 | 8 | 92 |
BPS-11 | – | 622 | – | 3 | – | – | 2646 | – | 3 | – | 425 |
BPS-12 | 91 | 488 | 5.4 | 3 | 6 | – | 1919 | – | 9 | – | 393 |
BPS-13 | 70 | 682 | 9.8 | 3 | 7 | – | 3283 | – | 7 | – | 482 |
BPS-21 | – | 132 | – | 3 | – | – | 635 | – | 11 | 13 | 481 |
BPS-22 | 160 | 1174 | 7.4 | 9 | 9 | 101 | 4705 | 46.8 | 11 | 12 | 401 |
Average ± SD | 60 ± 49 | 287 ± 371 | 5.2 ± 4.3 | 4.0 ± 2.0 | 7.3 ± 0.9 | 32 ± 39 | 1132 ± 1614 | 14.0 ± 18.7 | 6.2 ± 3.2 | 8.0 ± 3.0 | 255 ± 164 |
Gingival injection | |||||||||||
AIS-51 | 630 | 904 | 1.4 | 1 | 9 | 244 | 791 | 3.2 | 7 | 6 | 88 |
AIS-52 | 252 | 418 | 1.7 | 1 | 8 | 126 | 517 | 4.1 | 7 | 5 | 124 |
BIS-41 | 153 | 93 | 0.6 | 3 | 8 | 120 | 168 | 1.4 | 3 | 7 | 181 |
BIS-42 | 30 | 40 | 1.3 | 3 | 8 | – | 47 | – | 1 | – | 117 |
BIS-51 | 82 | 184 | 2.3 | 1 | 8 | – | 1013 | – | 3 | – | 549 |
BIS-52 | 77 | 78 | 1.0 | 7 | 6 | 130 | 482 | 3.7 | 1 | 8 | 614 |
BIS-53 | 67 | 112 | 1.7 | 3 | 7 | 76 | 553 | 7.3 | 3 | 7 | 493 |
Average ± SD | 184 ± 210 | 262 ± 310 | 1.4 ± 0.5 | 2.7 ± 2.1 | 7.7 ± 1.0 | 139 ± 62 | 510 ± 333 | 3.9 ± 2.1 | 3.6 ± 2.5 | 6.6 ± 1.1 | 309 ± 232 |