Experimental Cannabinoid 2 Receptor Activation by Phyto-Derived and Synthetic Cannabinoid Ligands in LPS-Induced Interstitial Cystitis in Mice

Interstitial cystitis (IC) is a chronic bladder disorder with unclear etiology. The endocannabinoid system has been identified as a key regulator of immune function, with experimental evidence for the involvement of cannabinoid receptors in bladder inflammation. This study used intravital microscopy (IVM) and behavioral testing in lipopolysaccharide-induced IC, to investigate the anti-inflammatory analgesic effects of a natural dietary sesquiterpenoid, beta-caryophyllene (BCP), which is present in cannabis among other plants, and has reported agonist actions at the cannabinoid 2 receptor (CB₂R). BCP’s anti-inflammatory actions were compared to the synthetic CB₂R-selective cannabinoid, HU308, and to an FDA-approved clinical treatment (dimethyl sulfoxide: DMSO). IVM data revealed that intravesical instillation of BCP and/or HU308 significantly reduces the number of adhering leukocytes in submucosal bladder venules and improves bladder capillary perfusion. The effects of BCP were found to be comparable to that of the selective CB₂R synthetic cannabinoid, HU308, and superior to intravesical DMSO treatment. Oral treatment with BCP was also able to reduce bladder inflammation and significantly reduced mechanical allodynia in experimental IC. Based on our findings, we believe that CB₂R activation may represent a viable therapeutic target for IC, and that drugs that activate CB₂R, such as the generally regarded as safe (GRAS) dietary sesquiterpenoid, BCP, may serve as an adjunct and/or alternative treatment option for alleviating symptoms of inflammation and pain in the management of IC.

Monoacylglycerol lipase inhibition as potential treatment for interstitial cystitis

Interstitial cystitis is a chronic inflammatory condition of the urinary bladder with an unclear etiology. Currently, there are no widely accepted long-term treatment options available for patients with IC, with the European Association of Urology (EAU, 2017 guidelines), American Urology Association (AUA, 2014 guidelines), and the Royal College of Obstetricians and Gynaecologists (RCOG, 2016 guidelines) all suggesting various different conservative, pharmacological, intravesical, and surgical interventions. The endocannabinoid system represents a potential target for IC treatment and management. Activation of cannabinoid receptor 2 (CBR2) with various agonists has previously been shown to reduce leukocyte differentiation and migration, in addition to inhibiting the release of pro-inflammatory cytokines at the site of inflammation. These receptors have been identified in the detrusor and sensory nerves of the urothelium in various mammalian species, including humans. We hypothesize that by inhibiting the enzymes responsible for the catabolism of endogenous cannabinoids locally, bladder concentrations of CBR2 agonists will increase, particularly 2-arachidonyl glycerol, resulting in a diminished inflammatory response.

A Within-Subjects Analysis of Men's Alcohol-Involved and Nonalcohol-Involved Sexual Assaults

Previous research has determined that alcohol use is frequently associated with sexual aggression perpetration. However, little research has examined the differences between alcohol-involved and nonalcohol-involved assaults among men who are repeat perpetrators of sexual aggression. Eighty men from the community who had self-reported perpetration of two or more sexual assaults, including at least one assault in which the participant was drinking and one assault in which they were sober, were recruited for a within-subjects survey. Data analysis examined the differences between participants' most recent alcohol-involved assault and their most recent nonalcohol-involved assault. A variety of differences were observed between nonalcohol and alcohol-involved assaults including the participants' primary appraisals, secondary appraisals, and the degree of force they used to obtain unwanted sex. These results provide further insight into the effect that alcohol has on perpetration of sexual aggression. Limitations and directions for future research are also discussed.

Effect of pre-treatment anxiety and depression on long term survival of prostate cancer patients treated radically with radiation and hormone therapy

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Background: The evidence for effect of anxiety and depression on cancer survival rates is contradictory (Ref : Prostate-JCO 2014.32:2471, Breast-JCO 1987. 5:768, Lung-JPSM 2017.53:1057). We assessed the effect of prospectively collected HADS score (Hospital Anxiety and Depression Scale) on subsequent long term survival. Methods: After ethics approval & informed consent, 145 prostate cancer patients (pts) were enrolled, onto a QOL study. HADS questionnaire was prospectively completed at baseline & at 3 mths after start of androgen deprivation therapy (ADT). Survival data collected in Jan 2019. PATIENT CHARACTERISTICS: Median age 69 (range 50 to 78); T stage T2:63.5%, T3:28.4%. Gleason 7 in 53.4% and 8-10 in 39.2%; Median PSA 10.2 (0.3 to 102); Median testosterone 11.6 (0.6 to 26.7); ADT duration median 6 mths (2 to 60 mths); Median overall survival 10.11 yrs Results: At baseline, HADS anxiety scores normal (0-7) in 78%; abnormality mild (8-10) in 12%; moderate (11-14) in 6% and severe (15-21) in 2%.. At > 3 mths, respective anxiety scores (%) were 71.3, 17.5, 7.7 and 3.5. At baseline, HADS depression scores (%) were 91.2, 5.2, 1.4 and 0.7. At > 3 mths, respective depression scores were (%) 83.9, 11.2, 3.5 and 1.4 Although median survival was numerically lower in pts scoring high on HADS at baseline, the survival rates were not statistically significant on Log rank test. Moreover, on Cox regression analysis with Age, Gleason Score, T Stage, baseline PSA as co-variates, there was no increased hazard from higher HADS scores (Table). Conclusions: Biological factors probably outweigh the influence of psychological factors on overall survival. [Table: see text]

Stress Response and Virulence Potential Modulating Effect of Peppermint Essential Oil in Campylobacter jejuni

Campylobacter jejuni is one of the most common food-borne bacteria that causes gastrointestinal symptoms. In the present study we have investigated the molecular basis of the anti-Campylobacter effect of peppermint essential oil (PEO), one of the oldest EO used to treat gastrointestinal diseases. Transcriptomic, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and proteomic, two-dimensional polyacryl amid gel electrophoresis (2D-PAGE) methods have revealed that, in the presence of a sublethal concentration of PEO, the expression of several virulence-associated genes was decreased (cheY 0.84x; flhB 0.79x; flgE 0.205x; cadF 0.08x; wlaB 0.89x; porA 0.25x; cbf2 4.3x) while impaired motility was revealed with a functional analysis. Scanning electron micrographs of the exposed cells showed that, unlike in the presence of other stresses, the originally curved C. jejuni cells straightened upon PEO exposure. Gaining insight into the molecular background of this stress response, we have revealed that in the presence of PEO C. jejuni dominantly exerts a general stress response that elevates the expression of general stress genes like dnaK, groEL, groES (10.41x, 3.63x, and 4.77x). The most important genes dps, sodB, and katA involved in oxidative stress responses showed however moderate transcriptional elevations (1,58x, 1,55x, and 1,85x).

What Proportion of Cancers in the UK and Its Constituent Countries Could Be Prevented? An Updated Analysis

Background: Understanding population-level exposure to cancer risk factors is vital when devising risk-reduction policies. By reducing exposure to cancer risk factors, many cancers could be prevented. But what impact on cancer incidence do these risk factors have? And what proportion of cancers could be prevented if these risk factors are avoided? Aim: The aim of this analysis was to update the estimates of the number and proportion of theoretically preventable cancers in the UK to reflect the changing behavior as assessed in representative national surveys, and new epidemiologic evidence. Separate estimates were also calculated for England, Wales, Scotland, and Northern Ireland because prevalence of risk factor exposure varies between them. Methods: Population attributable fractions (PAFs) were calculated for combinations of risk factor and cancer type with sufficient/convincing evidence of a causal association. Relative risks (RRs) were drawn from meta-analyses of cohort studies where possible. Prevalence of exposure to risk factors was obtained from nationally representative population surveys. Cancer incidence data for 2015 were sourced from national data releases and, where needed, personal communications. Results: Around four in ten (38%) cancer cases in 2015 in the UK were attributable to known risk factors. The proportion was around two percentage points higher in UK males (39%) than UK females (37%). Comparing UK countries, the attributable proportion for persons was highest in Scotland (41%) and lowest in England (37%). Tobacco smoking contributed by far the largest proportion of attributable cancer cases, followed by overweight and obesity, accounting for 15% and 6%, respectively, of all cases in the UK in 2015. Conclusion: Around four in ten (38%) cancer cases in the UK could be prevented. Tobacco and obesity remain the top contributors of attributable cancer cases. Tobacco smoking has the highest PAF because it greatly increases cancer risk and has a large number of cancer types associated with it. Obesity has the second-highest PAF because it affects a high proportion of the UK population and is also linked with many cancer types. Public health policy may seek to reduce the level of harm associated with exposure or reduce exposure levels - both approaches may be effective in preventing cancer. The variation in PAFs between UK countries is affected by sociodemographic differences which drive differences in exposure to theoretically avoidable 'lifestyle' factors. PAFs at UK country level have not been available previously and they should be used by policymakers in the devolved nations to develop more targeted public health measures. This analysis demonstrates the importance of nationally representative exposure prevalence data and cancer registration in informing evidence-based public health policy.

Non-surgical urologic management of neurogenic bladder after spinal cord injury

PURPOSE

To review the available data on non-surgical management for neurogenic bladder in patients with spinal cord injury (SCI). Before the introduction of urinary catheters and antibiotics, neurogenic bladder was one of the main culprits for death in those patients with SCI. Currently, the management of neurogenic bladder is focused in improving quality of life and preserving renal function.

METHODS

A literature review was performed and therapeutic management for neurogenic bladder was divided in six sections: (1) intermittent bladder catheterization; (2) indwelling catheters; (3) condom catheter drainage; (4) reflex voiding and bladder expression with Valsalva or Credé; (5) oral drug therapy of the spinal cord injured bladder; and (6) botulinum neurotoxin (BoNT).

RESULTS

Intermittent catheterization is recommended as the preferable method for management of neurogenic bladder in patients with SCI based on limited high-quality data. However, this may not be feasible or available to all and other alternative options include condom catheter drainage or indwelling catheters such as urethral catheters or suprapubic tube, reflex voiding, and bladder expression with Valsalva or Credé. Non-invasive medical therapies are the key to improve incontinence, urodynamic parameters, and quality of life in this population. Botulinum neurotoxin has revolutionized the management of neurogenic bladder in the last two decades decreasing the need for reconstruction or diversion.

CONCLUSION

The Joint SIU-ICUD (Société Internationale d'Urologie) (International Consultation on Urological Diseases) International Consultation reviewed the available presented data and provided specific conclusions and recommendations for each non-surgical urologic method to address neurogenic bladder after SCI.

Phantom menace: novel psychoactive substances and the UK Armed Forces

Novel psychoactive substances (NPS) encompass a large group of synthesised compounds specifically designed to mimic traditional recreational drugs. Current UK Armed Forces compulsory drug testing does not screen for these substances, making them tempting to the small proportion of UK Armed Forces personnel who indulge in recreational drug use. The acute and chronic sequelae of NPS misuse are widely variable and associated with high morbidity. In this paper, we discuss NPS pharmacology and clinical presentation. We describe toxidromes and management of patients who have misused NPS.Finally, we reflect on the legal, ethical and military consequences of NPS misuse for both the service person misusing NPS and the Military Physician providing their care.

Catheterization for treating neurogenic lower urinary tract dysfunction in patients with multiple sclerosis: A systematic review. A report from the Neuro-Urology Promotion Committee of the International Continence Society (ICS)

AIM

To systematically assess all available evidence on efficacy and safety of catheterization for treating neurogenic lower urinary tract dysfunction (NLUTD) in patients with multiple sclerosis (MS).

METHODS

This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Studies were identified by electronic search of Embase, Medline, Scopus, Cochrane register (last search March 3, 2018) and by screening of reference lists and reviews.

RESULTS

After screening 7'015 articles, we included four studies (one prospective and two retrospective cohort studies, one retrospective cross-sectional study), in which a total of 445 patients were enrolled. No randomized controlled trial was available. Catheterization substantially increased quality of life, post void residual, and incontinence episodes in all included studies. Pooling of data for meta-analysis was not possible due to the heterogeneity of reported outcomes. Adverse events were reported in two studies only. Risk of bias and confounding was intermediate.

CONCLUSIONS

Preliminary data suggests beneficial effects of catheterization on the urological outcome in patients with MS. However, although intermittent and indwelling catheterization is used frequently in daily clinical practice in the MS population, the evidence base is very limited and well-designed, properly sampled, and powered studies are urgently needed.

Urological issues arising after treatment of pediatric malignancies

N/A

Trends in the training of female urology residents in Canada

INTRODUCTION

There is limited research on why women do or do not choose a career in urology. Considering the increasing proportion of female medical students, we assessed for trends in female applicants to urology programs in Canada and their post-residency career choices.

METHODS

Data from the Canadian Residency Matching Service (CaRMS) was used (1998-2015). Trends in the proportions of females applying and matching to surgical subspecialties, and applying and matching to urology were computed. Surveys were sent to urology program directors to assess female residents' chosen career paths over the last decade.

RESULTS

A significant increasing trend in the proportion of females applying to urology as their first choice program was found (0.19 in 1998-99 to 0.27 in 2012-15; p=0.04). An increasing trend in the proportion of females successfully matching to urology was found, although it was not statistically significant (0.13 in 1998-99 to 0.24 in 2012-15; p=0.07). This was in keeping with the trends found for surgical programs overall. Female graduates choose a variety of career paths, with urogynecology being the most common fellowship (26%).

CONCLUSIONS

The last two decades has seen an increase in the proportion of female students applying to urology in Canada. Female urology graduates pursue a variety of career paths. It remains imperative that both female and male medical students have early exposure and education about our subspecialty to ensure we continue to recruit the most talented candidates.

Current Practices in the Surgical Management of Female Stress Urinary Incontinence: A Survey of Canadian Urologists and Gynecologists

INTRODUCTION

We assessed the practices of urologists and gynecologists who manage stress urinary incontinence surgically to examine the impact of the FDA (U.S. Food and Drug Administration) and/or Health Canada statements on pelvic floor mesh. We also determined how urologists and gynecologists manage recurrent stress urinary incontinence and complications of mesh mid urethral slings.

METHODS

We conducted an online survey of urologists and gynecologists who were members of the Canadian Urological Association or Society of Obstetricians and Gynaecologists of Canada.

RESULTS

Mid urethral sling was the most common surgery for stress urinary incontinence performed by urologists and gynecologists (100% vs 84%, p=0.0002). The majority of respondents (87%, 119 of 137) were aware of the FDA and/or Health Canada statements and 66% of physicians altered the way they counseled patients before mid urethral sling surgery. An equal proportion of urologists and gynecologists altered their surgical management of stress urinary incontinence due to patient concerns (31% vs 36%) and due to FDA and/or Health Canada statements (16% vs 13%). Repeat mid urethral sling was the most common method of treating recurrent stress urinary incontinence and urologists were more likely than gynecologists to manage complications of mid urethral sling (58% vs 41%, p=0.0286). Chronic pain (33%) and vaginal mesh erosion (26%) were the most common concerns overall.

CONCLUSIONS

Mid urethral sling was reported as the most commonly performed surgery for stress urinary incontinence by urologists and gynecologists after the FDA and Health Canada statements. Both groups altered their surgical practices most commonly due to patient concerns, indicating that negative media attention is impacting the way in which urologists and gynecologists practice when surgically managing stress urinary incontinence in Canada. Variation exists between urologists and gynecologists when it comes to managing complications related to mid urethral sling.