Diabetic foot is a serious late complication frequently caused by infection and ischaemia. Both require prompt and aggressive treatment to avoid lower limb amputation. The effectiveness of peripheral arterial disease therapy can be easily verified using triplex ultrasound, ankle-brachial/toe-brachial index examination, or transcutaneous oxygen pressure. However, the success of infection treatment is difficult to establish in patients with diabetic foot. Intravenous systemic antibiotics are recommended for the treatment of infectious complications in patients with moderate or serious stages of infection. Antibiotic therapy should be initiated promptly and aggressively to achieve sufficient serum and peripheral antibiotic concentrations. Antibiotic serum levels are easily evaluated by pharmacokinetic assessment. However, antibiotic concentrations in peripheral tissues, especially in diabetic foot, are not routinely detectable. This review describes microdialysis techniques that have shown promise in determining antibiotic levels in the surroundings of diabetic foot lesions.

• Klíčová slova
• antibiotic (ATB), capillary electrophoresis (CE), diabetic foot (DF), diabetic foot infection (DFI), microdialysis (MD),
• MeSH
• amputace MeSH
• antibakteriální látky terapeutické užití   MeSH
• diabetes mellitus * farmakoterapie   MeSH
• diabetická noha * diagnóza   farmakoterapie   MeSH
• dolní končetina patologie   MeSH
• lidé MeSH
• mikrodialýza škodlivé účinky   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• přehledy MeSH
• Názvy látek
• antibakteriální látky MeSH

Asymmetric and symmetric dimethylarginines are toxic non-coded amino acids. They are formed by post-translational modifications and play multifunctional roles in some human diseases. Their determination in human blood plasma is performed using capillary electrophoresis with contactless conductivity detection. The separations are performed in a capillary covered with covalently bonded PAMAPTAC polymer, which generates anionic electroosmotic flow and the separation takes place in the counter-current regime. The background electrolyte is a 750 mM aqueous solution of acetic acid with pH 2.45. The plasma samples for analysis are treated by the addition of acetonitrile and injected into the capillary in a large volume, reaching 94.5% of the total volume of the capillary, and subsequently subjected to electrophoretic stacking. The attained LODs are 16 nm for ADMA and 22 nM for SDMA. The electrophoretic resolution of both isomers has a value of 5.3. The developed method is sufficiently sensitive for the determination of plasmatic levels of ADMA and SDMA. The determination does not require derivatization and the individual steps in the electrophoretic stacking are fully automated. The determined plasmatic levels for healthy individuals vary in the range 0.36-0.62 µM for ADMA and 0.32-0.70 µM for SDMA.

• Klíčová slova
• amino acid, capillary coating, capillary electrophoresis, clinical analysis, contactless conductivity detection, dimethylarginines, sample treatment, stacking,
• MeSH
• acetonitrily chemie   MeSH
• anionty krev   chemie   izolace a purifikace   MeSH
• arginin analogy a deriváty   krev   chemie   izolace a purifikace   MeSH
• elektrická vodivost MeSH
• elektroforéza kapilární * MeSH
• lidé MeSH
• limita detekce MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• acetonitrile MeSH Prohlížeč
• acetonitrily MeSH
• anionty MeSH
• arginin MeSH
• N,N-dimethylarginine MeSH Prohlížeč
• symmetric dimethylarginine MeSH Prohlížeč