Acute kidney injuries associated with the new … · Bruno Mégarbane, MD, PhD Department of...
Transcript of Acute kidney injuries associated with the new … · Bruno Mégarbane, MD, PhD Department of...
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Bruno Mégarbane, MD, PhD
Department of Medical and Toxicological Critical Care INSERM U 1144 - Paris-Diderot University
Lariboisiere Hospital, Paris, France
Acute kidney injuries associated with the new psychoactive substances
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First cathinone
First synthetic cannabinoid
50 cathinones 112 cannabinoids
The New Psychoactive Drugs (availability, seizures, use, fatalities)
European Drug Report 2014
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Depressants
Kratom GHB/GBL
1,4 butanediol New opioïds
The new psychoactive substances
Stimulants
Phenetylamines Pipradols
Piperazines Cathinones
Synthetic cocaine
Hallucinogens
Tryptamins Cannabinoids
Glaucine TFMPP
Salvia, mitragyna
>300 new molecules between 2000 and
2015
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1345
957 904
711 593
467
315 259 248 245 245 220 186 147 140 136 128 112 92 87
0
200
400
600
800
1000
1200
1400
1600 Co
unt
of d
rug
EuroDEN, unpublished data
Top 20 most commonly reported drugs in the ED in Europe (n=8709 in 5529 presentations)
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Synthetic cathinones 1
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MDMA analogues
MDMA-like cathinones
Amphetamine analogues
Pyrovalerone cathinones
Cathinones: does structure predict activity?
Amphetamine-like cathinones
Phenethylamine structure + β-keto group on the side-chain
(+ Pyrrolidinil moiety)
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Pharmacology of stimulants and empathgens
Methamphetamine o dopaminergic
o stimulant o highly addictive
-10 -9 -8 -7 -6 -5 -4 -30
25
50
75
100
125
MDMA [M]
mon
oam
in u
ptak
e (%
of c
ontro
l)
-10 -9 -8 -7 -6 -5 -4 -30
25
50
75
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125
Methamphetamine [M]
mon
oam
in u
ptak
e (%
of c
ontro
l)
5-HT
DA
5-HT
DA
DAT/SERT ratio = 22
DAT/SERT ratio = 0.1 MDMA (ecstasy) o serotonergic o empathogen o less stimulant o less addictive
Simmler & Liechti. BMC Res Notes 2013
Potency to inhibit NE, DA and 5-HT transport into transporter-transfected cells and their efflux from monoamine-preloaded cells
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Classification of NPS according to DAT/SERT ratio
5-HT Dominant
DA Dominant
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PCC report of cathinone toxicity N= 236
Signes adrénergiques
Signes d’encéphalopathie
Signes sérotoninergiques
Spiller HA. Clin Tox 2011
Signes viscéraux
Clinical data
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Synthetic cannabinoids 2
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Synthetic cannabinoids: chemical structure
Used to obtain Δ9-THC-like psychological effects
Computational melding of Δ9-THC chemical structure with aminoalkylindole (JWH series), indol (AM) and
cyclohexylphenol (CP) derivates
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5F-AMB AM2201 analogue AB-CHIMINACA 5F-AMBICA MEPIRAPIM PP22 analogue FUBIMINFA ADBPINACA
2014
Continuing exponentially expansion with new molecules
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Recreational names … … Original manufacturing procedure
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Substance Ki (nM) Affinity to CB1 receptors
THC 41 ± 2 1 XLR-11 24 ± 5 X 2
JWH-018 9 ± 5 X 5 JWH-073 8.9 ± 2 X 5 CP 47,497 2.2 ± 0.5 X 20 AM-2201 1 X 40
HU-210 0.06 ± 0.01 X 700
Consequences of powerful cannabinoids
- Activity duration: up to24h
(instead of4-6h) - Incidence of symptoms x2-4
- Increased severity (5% in the ICU) - Fatalities: 8
published cases
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Synthetic cannabinoids related clinical toxicity
Hermanns-Clausen M. Addiction 2012
First generation: nausea/vomiting, occasional seizures More recent generation: seizures, cardiotoxicity, sympathomimetic syndrome serotoninergic syndrome Cardiovascular events Stroke
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Synthetic hallucinogens 3
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Methoxetamine toxicity (NMDA receptor antagonist)
Hill SL. Emerg Med J 2014
N = 47
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Psychedelic phenetylamines
Phenetylamine derivates
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NBOMe derivates
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Renal toxicity related to the use of NPS
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Predictors of AKI in HIV-infected patients
Garg S. Aids Patient Care and STDs 2011
Multivariable analysis adjusted for CD4 cell
count
Multivariable analysis adjusted for HIV
viral load
Illicit drugs & AKI
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Kosmadakis G. J Artif Organs 2011
AKI due to rhabdomyolysis in relation to illicit drugs
Both rhabdomyolysis and ARF are more severe in heroin users than in other drug users
Illicit drugs & AKI
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Aldeen MA. JIMHICR 2014
Cocaine-induced acute interstitial nephritis
Illicit drugs & AKI
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Mechanisms: Enhanced platelet aggregation, thromboxane synthesis, endothelial & vasospastic injury due to inhibition of uptake of cathecolamines
Hirachan P JIMHICR 2015
Cocaine-induced renal infarction Illicit drugs & AKI
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Heroin crystals in alkaline pH, resulting in tubular obstruction and AKI Urine crystals with characteristic slender blades & branching threads
Heroin crystal nephropathy
Bautista JEK. Clin Kid J 2015
Illicit drugs & AKI
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Hyponatraemia + acute cerebral edema Hyperthermia Dehydration, volume contraction Rhabdomyolysis (pigment nephropathy) MOF Renal arteriolar vasospasm Severe HTA and aortic vasoconstriction Necrotizing vasculitis (negative ANCA) Thrombotic microangiopathy, TPP Interstitial nephritis Glomerulopathy, tubulopathy, obstructive nephropathy Renal infarction Impurities or adulterants (levamisole, oxalogenic plant)
Mechanisms of illicit drug-induced renal and electrolyte abnormalities
Prerenal AKI
ATN
Vascular
Rare
Co-toxicant
Electrolyte
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Luciano RL. Nature Rev Nephrol 2014 Nep
hrot
oxic
eff
ects
of
desi
gner
dru
gs
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Dose-dependent toxicity: - Patients reported having used more drugs than their asymptomatic contacts - Non-standardized manufacturing processes increase the chance that preparations contain uneven distribution of active compounds, exposing users to different concentrations Host-dependent toxicity: - Higher predisposition to AKI (young males) - Gene polymorphism (CYP, conjugation) è variable oxidative and conjugative metabolite profile
Drug pharmacology: binding affinity to receptors (CB1/CB2), increased T1/2 (phosphorylated cannabinoids)
Mechanisms of drug-induced AKI
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Age: 15 – 27 yrs (median, 18 yrs), 2 pairs of siblings Intense nausea and flank or abdominal pain - Peak creatinine: 2.6 – 17.7 mg/dL (median, 6.6 mg/dL). - Proteinuria (N=8), casts (N=5), RBC in urine (N=8) - Increased cortical echogenicity (N=9/12) Renal biopsy (N=8): acute tubular injury (N=6)
acute interstitial nephritis (N=3) Detection of fluorinated SCB (XLR-11) (N=4/6) ([1-(5-fluoropentyl)-1H-indol-3-yl](2,2,3,3-tetramethyl-cyclopropyl)methanone) All patients were hospitalized; one required dialysis; none died
Cannabinoids-induced AKI (N=16)
Tait RJ. Clin Tox 2016
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Proximal tubular injury: vacuolization of epithelial cells, mitotic figures providing evidence of regeneration, medulla capillaries inflammation Focal interstitial lymphocytic infiltrate with interstitial edema and occasional interstitial eosinophils
Typical cannabinoid-related renal histological injuries
Tubular injury Interstitial nephtritis
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Cannabinoid hyperemesis acute renal failure
Habboushe J. Am J Emerg Med 2014
Risk factors: male, intractable vomiting, constant hot showers
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30% ketamine users have urological symptoms, including dysuria, increased frequency of micturation, suprapubic pain, and painful microscopic or gross haematuria. Among patients with lower urinary tract symptoms, 75% had decreased bladder capacitance and wall thickening and 50% had hydronephrosis. Abnormal bladder histology, ureteral strictures, papillary necrosis and renal infarcts are seen in patients who regularly use ketamine resulting in substantial kidney dysfunction. In 59 patients with lower urinary tract symptoms, 14% had elevated serum creatinine (124–585 µM), all patients had bilateral hydronephrosis and 14% required ureteric diversions.
Urological complications related to the long-term recreational use of ketamine
Luciano RL. Nature Rev Nephrol 2014
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Three-month methoxetamine administration is associated with significant bladder and renal toxicity in mice
Methoxetamine (3-month daily 30 mg/kg IP) è bladder (inflammatory + fibrosis) and renal (glomerular + tubular) toxicity in mice, comparably to those related to chronic ketamine administration
Dargan PI. Clin Tox 2014
Glomerular shrinkage Glomerular damage Tubular damage Bladder PMN infiltration
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Conclusions
The increasing use of drugs means clinicians must be aware of the clinical presentation and associated end-organ toxicity. Nephrotoxicity from designer drug use should be considered in the differential diagnosis of any patient with AKI of unknown etiology whether or not there is direct nephrotoxicity due to the drug, an adulterant or to a systemic complication.
It is important for clinicians to recognize the potential for kidney injury with the use of designer drugs.