Women have been enrolling in medical schools in increasing numbers in the last few decades, reaching 50.7% of matriculants in 2017. 1 Of 25 749 internal medicine residents in 2017, 42.4% were women. 2 We examined changes in the internal medicine subspecialty choices of women and men from 1991 to 2016.
The AFFIRM Study enrolled 4060 predominantly elderly patients with atrial fibrillation to compare ventricular rate control with rhythm control. The patients in the AFFIRM Study were representative of patients at high risk for complications from atrial fibrillation, which indicates that the results of this large clinical trial will be relevant to patient care.
Rationale: Inhibition of glutamatergic Nmethyl-D-aspartate (NMDA) receptors following the administration of NMDA receptor antagonists results in psychotic-like behaviour. Whereas it is known that pharmacological manipulation of dopaminergic and serotonergic pathways affect this drug-induced psychosis, a role for noradrenaline has not yet been clearly defined. Objectives: Thus, in the present study, we assessed a possible role for noradrenaline in the behavioural response to the non-competitive NMDA receptor anatgonist, MK-801, in male CD-I mice. Results: MK-801 (0.02-1.28 mg/kg; ED 50 0.2 mg/kg; s.c.) induced a dosedependent increase in locomotor, stereotypic and ataxic behaviours. Pre-treatment with the noradrenaline re-uptake inhibitors, desipramine (10 mg/kg; i.p.) and reboxetine (20 mg/kg; i.p.), attenuated the locomotor, stereotypic and ataxic response to MK-801 (0.2 mg/kg; s.c.). The noradrenergic system was lesioned with N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine hydrochloride (DSP-4, 50 mg/kg; i.p., 7 and 4 days prior to challenge) to reduce noradrenaline concentrations in the cortex by 70%-80%. Whereas DSP-4 lesioning had little effect on the response to MK-801, it completely reversed the attenuating effects of reboxetine. Pre-treatment with the α 2 adrenoceptor agonist, clonidine (0.2 mg/kg; i.p.), and the antagonist, yohimbine (2 mg/kg; i.p.), attenuated and potentiated the response to MK-801, respectively. Pre-treatment with the α 1 adrenoceptor antagonist, prazosin (2 mg/kg; i.p.), reduced the MK-801-induced response. Conclusions: It therefore appears that presynaptic noradrenergic α 2 and postsynaptic α 1 adrenoceptor stimulation exert opposing effects on the behavioural expression of MK-801 in mice.
Introduction
Patients with end‐stage heart failure eligible for orthotopic heart transplantation (OHT) exceed the number of available donor organs. With highly effective hepatitis C virus (HCV) antiviral therapy now available, HCV+ organs are increasingly utilized. We seek to describe our experience with patients receiving HCV viremic organs as compared to non‐HCV transplant recipients.
Methods
Our center began utilizing HCV hearts in February 2018. We retrospectively reviewed baseline demographics, laboratory data and outcomes for those undergoing OHT with majority being from a viremic HCV donor.
Results
Twenty‐three of 25 HCV recipients received hearts from NAT+ donors with 22 of 23 seroconverting within 7 days. Fifteen recipients have completed HCV treatment, with the longest duration of follow‐up being 13 months. No differences in rates of rejection, hospitalizations or death were seen between non‐HCV and HCV transplant patients.
Discussion
With the advent of available direct‐acting antivirals (DAAs), viremic HCV hearts provide an opportunity to increase organ availability. Moreover, treatment for HCV in the setting of immunosuppression is well‐tolerated and results in sustained viremic response.
Conclusion
Viremic, discordant HCV OHT can be performed in a safe and effective manner utilizing a systematic, multidisciplinary approach without an effect on short‐term outcomes.
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