Drug transporters play vital roles in absorption, distribution and excretion of drugs. Understanding the transport activity can improve the effectiveness and safety of drugs and guide clinical rational use of drugs. Metformin is a first-line drug in the treatment of type 2 diabetes mellitus, of which the pharmacokinetics involves several transporters. The changes in expression and function of these transporters affect directly the pharmacokinetics/pharmacodynamics of metformin. This paper reviews the research progress of pharmacokinetics of metformin based on transporters, and these transporters are organic cation transporters (OCTs), multidrug and toxin extrusion proteins (MATE), plasma membrane monoamine transporter protein (PMAT), serotonin reuptake transporter (SERT), thiamine transporter 2 (THTR-2), and carnitine/organic cation 1 (OCTN1).
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |