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6 protocols using amikacin

1

Promastigote Cultivation and 18S rRNA Sequencing

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Promastigotes were cultured in the M199 medium (Sigma−Aldrich, St. Louis, MO, United States) containing 10% heat-inactivated fetal bovine calf serum (FBS; Thermo Fisher Scientific, Waltham, MA, United States), supplemented with 1% Basal Medium Eagle vitamins (Sigma−Aldrich), 2% sterile urine and 250 μg/ml of amikacin (Bristol-Myers Squibb, New York, NY, United States).
Total genomic DNA was isolated from 10 ml of trypanosomatid cultures with the DNeasy Blood & Tissue Kit (Qiagen, Hilden, Germany) according to the manufacturer’s instructions. 18S rRNA gene was amplified using primers S762 and S763 [48 (link)], following the previously described protocol [13 (link)]. These PCR fragments were sequenced directly at Macrogen Europe (Amsterdam, Netherlands) as described previously [49 (link)]. The identity of species under study was confirmed by BLAST analysis [50 (link)].
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2

Psychopharmacologic Perioperative Treatments

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Cocaine hydrochloride (Pharmacy of the Geneva University Hospitals) was dissolved in saline. Aripiprazole (Tocris, Bristol, UK) was suspended in 1 mL distilled water and 5% TWEEN. For perioperative care, amikacin (Bristol-Myers Squibb, Cham, Switzerland), cefazolin (Labatec Pharma, Meyrin, Switzerland) and buprenorphine (Reckitt Benckiser, Wallisellen, Switzerland) were dissolved in saline.
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3

Culturing L. mexicana Promastigotes and Differentiating Metacyclic and Amastigote Forms

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L. mexicana (MNYC/BZ/1962/M379) promastigotes were cultured in M199 medium (Sigma-Aldrich, St. Louis, USA), supplemented with 2 µg/ml biopterin (Sigma-Aldrich), 2 µg/ml Hemin (Jena Bioscience GmbH, Jena, Germany), 25 mM HEPES and 50 units/ml of penicillin/streptomycin (Life Technologies/Thermo Fisher Scientific, Carlsbad, USA), and 10% heat-inactivated fetal bovine serum (FBS, BioSera Europe, Nuaillé, France). Metacyclic promastigotes and amastigotes were differentiated as previously described [44 (link)]. Prior to in vivo analysis, Leishmania cell lines were passaged through mice. Freshly isolated promastigotes were cultured in M199 medium (Sigma-Aldrich) containing 10% heat-inactivated FBS (Life Technologies) supplemented with 1% Basal Medium Eagle vitamins (Sigma-Aldrich), 2% sterile human urine, and 250 μg/ml amikacin (Bristol-Myers Squibb, New York, USA). For mice infections, the pH of the cultivation medium was adjusted to 5.5.
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4

Culturing L. mexicana Promastigotes and Evaluating Macrophage Infection

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The L. mexicana wild type promastigotes were cultured in the M199 medium (Sigma-Aldrich) containing 10% FBS supplemented with 1% Basal Medium Eagle vitamins (Sigma-Aldrich), 2% sterile urine, and 250 µg/mL Amikacin (Bristol-Myers Squibb, New York, NY, USA), and 200 µg/mL of Hygromycin B (Carl Roth GmbH) for BnSP-7-ecDHFR-HA mutant cell lines. Infection of the J774 macrophages was performed as described previously [49 (link),52 (link)]. In addition, infection was evaluated by counting Giemsa-stained slides as described previously [51 (link)]. All experiments were performed with two independent biological replicates and samples were analyzed in triplicate.
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5

Pharmacological Preoperative Protocol

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d-Amphetamine (Sigma-Aldrich, Switzerland) and cocaine (Pharmacy of the University Hospital of Geneva) were dissolved in saline. For perioperative care, amikacin (Bristol-Myers Squibb, Cham, Switzerland), cefazolin (Labatec Pharma, Meyrin, Switzerland), and buprenorphine (Reckitt Benckiser, Wallisellen, Switzerland) were diluted in saline.
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6

Amikacin Dosing in Severe Sepsis

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Adults (≥ 18 years) with severe sepsis or septic shock according to standard criteria admitted at the ED of the University Hospitals Leuven between 8 am and 5 pm on weekdays, were prospectively included from January 2013 to August 2014 [25] . This timeframe was chosen in function of availability of the research team. Written informed consent was obtained from each patient or relative. Patients with (1) age < 18 years, (2) pregnancy, (3) burns, (4) Amikacin treatment 2 weeks prior to inclusion, (5) known allergy to aminoglycosides, (6) a Do Not Resuscitate code, or (7) dialysis within 24 hours after admission were excluded. Patients were randomly assigned by envelope to a single dose of 15 mg/kg vs. 25 mg/kg, using total body weight (TBW) for dose calculation. The dose was limited to 1.2 g and 2 g in the 15 mg/kg vs. 25 mg/kg group for patients with a TBW higher than 80 kg. Amikacin (Amukin®Bristol-Myers Squibb) was given intravenously as a 30-minute infusion. At the discretion of the treating clinician, other antibiotics were prescribed in combination with Amikacin. Blood samples were collected in lithium-heparin tubes at 1, 6 and 24 hours after the onset of the first Amikacin infusion.
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