'Nocturomics': transition to omics-driven biomarkers of nocturia, a systematic review and future prospects.

OBJECTIVE: To systematically review studies that investigated different biomarkers of nocturia, including omics-driven biomarkers or 'Nocturomics'. MATERIALS AND METHODS: PubMed® , Scopus® , and Embase® were searched systematically in May 2022 for research papers on biomarkers in physiological fluids and tissues from patients with nocturia. A distinction was made between biomarkers or candidates discovered by omics techniques, referred to as omics-driven biomarkers, and classical biomarkers, measured by standard laboratory techniques and mostly thought from pathophysiological hypothesis. RESULTS: A total of 13 studies with 18 881 patients in total were included, eight of which focused on classical biomarkers including: atrial natriuretic peptide (ANP), B-type natriuretic peptide (BNP), C-reactive protein (CRP), aldosterone, and melatonin. Five were 'Nocturomics', including one that assessed the microbiome and identified 27 faecal and eight urinary bacteria correlated with nocturia; and four studies that identified candidate metabolomic biomarkers, including fatty acid metabolites, serotonin, glycerol, lauric acid, thiaproline, and imidazolelactic acid among others. To date, no biomarker is recommended in clinical practice. Nocturomics are in an embryonic phase of conception but are developing quickly. Although candidate biomarkers are being identified, none of them are yet validated on a large sample, although some preclinical studies have shown a probable role of fatty acid metabolites as a possible biomarker of circadian rhythm and chronotherapy. CONCLUSION: Further research is needed to validate biomarkers for nocturia within the framework of a diagnostic and therapeutic precision medicine perspective. We hope this study provides a summary of the current biomarker discoveries associated with nocturia and details future prospects for omics-driven biomarkers.

Sleep disturbances are underappreciated in prostate cancer survivorship.

BACKGROUND: The prevalence of sleep disturbances among prostate cancer (PCa) survivors, and extent of urologist involvement in sleep care are not well-studied. METHODS: PCa survivors (n = 167) and urologists (n = 145) were surveyed about sleep disturbances and survivorship care practices. RESULTS: Most PCa survivors had sleep disturbances, including 50.9% with poor sleep quality, 18.0% with clinical/severe insomnia, and 36.5% at high-risk for sleep apnea. Few urologists routinely screened for sleep disturbances, as recommended in national cancer survivorship guidelines. CONCLUSIONS: Optimal PCa survivorship care should incorporate screening for sleep disturbances, addressing comorbid factors affecting sleep and referring to sleep medicine when appropriate.

Top 50 Most Cited Articles About OAB: A Bibliometric Analysis.

OBJECTIVE: To identify key articles about overactive bladder (OAB) using citation number and bibliometric analysis. METHODS: We searched for articles in the Web of Science Core Collection between 1900 and 2022 using terms specific to OAB. We identified relevant OAB articles and selected the top 50 most cited. A bibliometric analysis was performed to collect and analyze data about authorship, title, publication year, total citations, journal, journal impact factor, country, institution, study type, citation index, conflict of interest (COI), and conclusions. RESULTS: A total of 12,200 records were identified. The top 50 most cited articles were published between 1997 and 2015 in nine countries, across over 30 different institutions, and in 19 journals. The country, institution, and journal which produced the greatest number of articles were the USA, Southmead General Hospital in England, and BJU International, respectively. The mean number of citations per article was 365.66. Observational studies and clinical trials were the most common. Most articles were published in 2006 and were sponsored. The most cited article also had the most citations per year. This study is limited by using a single database and a single parameter as a proxy for paper importance. CONCLUSION: Bibliometric analyses are an important resource for clinicians to understand the body of knowledge of OAB by identifying landmark papers. This objective approach to literature review can facilitate future research and scholarly efforts.

An Analysis of Google Trends During COVID-19: Determining Public Urological Cancer Concerns.

Background The COVID-19 pandemic put a massive strain on the healthcare system as patients avoided the hospital, elective cases were postponed, and general medical anxiety was increased. We aimed to capture public interest in urological cancers during this massive shock to the medical field. Methodology A total of 12 keywords related to the three most prevalent urological cancers (prostate, bladder, and kidney) were searched using Google Trends from 2018 to 2022. The search volume index of these 12 keywords was extracted to assess public interest before and after the pandemic. Results There was a reduction in search volume for "prostate, bladder, and kidney cancer" and "kidney cancer treatment" after the postponement of elective surgeries. However, there was an increase in search volume for "prostate, bladder, and kidney cancer survival rates" and "prostate cancer symptoms" after this period. There was no change in search volume for bladder cancer symptoms, bladder cancer treatment, or kidney cancer symptoms. Conclusions Public interest in urological cancers decreased after COVID, while interest in survival rates across all three cancers increased. Future research is needed to investigate the effects of changing priorities and delays in medical care on patients' experiences with urological cancers.

Transition from Childhood Nocturnal Enuresis to Adult Nocturia: A Systematic Review and Meta-Analysis.

PURPOSE: Current literature has suggested a relationship between nocturnal enuresis (NE) in childhood and the development of nocturia later in life as both disorders have similar underlying etiologies, comorbidities, and treatments. The objective was to synthesize the available evidence on the association between childhood NE and later presentation of nocturia. METHODS: PubMed, CINAHL, Scopus, and Google Scholar were searched for peer-reviewed studies published between January 1980 and April 2021. Case-control and cohort studies that reported on childhood NE and current nocturia were included. The PRISMA protocol was followed (PROSPERO ID: CRD42021256255). A random-effects model was applied to calculate the pooled odds ratio (OR) and 95% confidence interval (CI). Risk of bias was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) criteria and with a funnel plot. RESULTS: Of the 278 articles identified, 8 studies met inclusion criteria. The 6 case-control and 2 prospective cohort studies resulted in a total sample size of 26,070 participants. In a random-effect pooled analysis, childhood NE was significantly associated with the development of nocturia (OR: 1.75, 95% CI: 1.11-2.40). Significant heterogeneity (I2 = 92.7%, p < 0.01) was identified among the included studies, which was reflected in an asymmetrical funnel plot. NE and nocturia have similar underlying etiologies of hormonal abnormalities, sleep disorders, physiological disorders, and psychological disorders. CONCLUSION: The history of childhood NE is significantly associated with nocturia later in life. The data in this meta-analysis support this transition and identify potential similarities between the two disorders. The sparse number of articles relevant to this topic is a strong indicator of the need for more work on this transition from childhood to maturity. More studies are warranted to further explore the association between NE and nocturia.

Nocturia and electrocardiographic abnormalities among patients at an inner-city cardiology clinic.

AIMS: Nocturia has been increasingly recognized as a potential manifestation of cardiovascular disease. However, the relationship between nocturia and electrocardiographic (ECG) abnormalities has not been studied. This study aims to characterize the diagnostic utility of nocturia in identifying left ventricular hypertrophy (LVH), left atrial enlargement (LAE), and prolonged QTc on ECG. METHODS: Retrospective analysis of nocturnal voiding frequency and contemporaneous ECG data from consecutive patients evaluated at a university-based outpatient cardiology clinic. Three sets of three incremental binary multiple logistic regression models controlling for (1) age, (2) sex and race, and (3) body mass index, hypertension, diabetes mellitus, and diuretic utilization were performed to determine whether nocturia was predictive of LVH, LAE, and prolonged QTc. RESULTS: Included patients (n = 143, 77.6% nocturia) were predominantly African-American (89.5%), female (74.1%), and obese (61.5%), of whom 44.1%, 41.3%, and 27.3% had LVH, LAE, and prolonged QTc, respectively. Older age, African-American race, obesity, hypertension, diuretic use, LVH, and LAE were significantly associated with nocturia on univariate analysis. No significant differences were observed in the strength of associations between nocturia and LVH, LAE, or QTc prolongation based on age. Nocturia independently predicted LVH in Models I-III (odds ratios [ORs], 2.99-3.20; relative risks [RRs], 1.18 for all, p ≤ .046) and LAE in Models I-III (ORs, 4.24-4.72; RRs, 1.21 for all, p ≤ .015). No significant associations were observed between nocturia and prolonged QTc. CONCLUSIONS: Nocturia may be a risk marker for underlying structural cardiac abnormalities.

Sodium restriction improves nocturia in patients at a cardiology clinic.

This study aims to determine whether dietary sodium restriction counseling decreases nocturnal voiding frequency in cardiology patients with concomitant nocturia. Patients who had established care at a cardiology clinic from 2015 to 2018 reporting ≥1 average nocturnal void(s) underwent a comprehensive sodium intake interview by their cardiologist, who provided them with individualized strategies for dietary sodium reduction and assessed adherence at follow-up. Average nocturnal voiding frequency and dietary adherence were documented in the medical record. A nocturia database was compiled for retrospective analysis. A total of 74 patients were included. Patients considered to be adherent with dietary sodium restriction at follow-up (n = 56) demonstrated a decrease in median nocturia frequency (2.5 [2.3-3.0] vs 1.0 [1.0-2.0] voids, P < .001). Among nonadherent patients (n = 18), median nocturia frequency did not significantly change from baseline to follow-up (2.0 [1.5-3.8] vs 2.0 [1.5-4.8] voids, P = .423). Median changes were significantly different between the adherent and nonadherent groups (P < .001). Examination of second follow-up available from 37 patients showed a continued effect. In conclusion, adherence with dietary sodium counseling appears to improve nocturia. Accordingly, dietary modification may represent an important adjunct therapy to lifestyle and pharmacologic interventions for decreasing nocturia frequency. Reduction in nocturnal voiding frequency may also reflect an additional benefit of dietary sodium restriction in accordance with best practice standards for cardiovascular disease.

Comparison of nocturia etiology in black and white male patients.

INTRODUCTION: Much of what is known about the etiology of nocturia (i.e., nocturnal polyuria [NP], small bladder capacity [SBC], etc.) at the population level stems from the Krimpen study, which enrolled aging males from a homogenous municipality in the Netherlands. Given the higher prevalence of benign prostatic hyperplasia and overactive bladder in black versus white males in population research, we aim to test the hypothesis that black males seeking treatment for lower urinary tract symptoms (LUTS) are more likely to have nocturia owing to SBC. MATERIALS AND METHODS: We retrospectively analyzed 24 hour frequency-volume charts (FVCs) completed by males seeking treatment for LUTS at a Veterans Affairs urology clinic from 2008-2016. Patients were included if they were ≥ 18 years, identified as either Caucasian or African American, and had a complete baseline FVC showing ≥ 1 nocturnal void. Patients were stratified by race and classified as having nocturia owing to SBC (defined by a maximum voided volume < 200 mL or a nocturnal bladder capacity index > 1.3); NP (defined by a nocturnal polyuria index > 0.33); 'mixed' (SBC + NP); or 'other' (neither SBC nor NP). RESULTS: Between white and black patients, 28 (24%) versus 28 (26%) had NP, 32 (27%) versus 33 (30%) had SBC, and 35 (30%) versus 30 (28%) had mixed nocturia. Overall, there was no difference in distribution of underlying etiology by race (p = 0.51). CONCLUSIONS: Our results demonstrate no difference in the etiology of nocturia between black and white males. Accordingly, race should not play a role in the evaluation of patients seeking treatment for nocturia.