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1.
Ann Surg Oncol ; 29(8): 5333-5337, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35381936

ABSTRACT

PURPOSE: The aim of this study is to examine the rates of clinical actions (CAs) as a result of serial creatinine (SCr) values and to examine postoperative SCr trends to assess the utility of SCr measurements in radical cystectomy (RC) patients. METHODS: We performed a retrospective chart review using our institution's database on all patients who underwent radical cystectomy for urothelial carcinoma (UC) from 2009 to 2019. Preoperative and all postoperative inpatient creatinine values were recorded. Minor CAs included fluid boluses, fluid rate changes, and medication changes. Major CAs included OR take-backs for stent repositioning, nephrostomy tube placement, nephrology consultation, and hemodialysis. RESULTS: A total of 238 RCs were performed with a resultant 2952 SCr measurements. The median number of SCr measurements per patient was 9 (interquartile range, IQR 7) with median length of hospital stay of 10 days (IQR 9 days). There were 92 minor and 12 major CAs as a result of 3% and 0.44% of SCr measurements, respectively. All major CAs were seen in patients experiencing complicated postoperative course. The median postoperative day with the highest creatinine was day 2. Predictors of postoperative CAs included preoperative renal dysfunction and obesity. CONCLUSION: SCr measurements remain a clinically valuable tool in postoperative management. Nonetheless, this present study suggests that prolonged SCr monitoring is of limited clinical utility. As such, discontinuing SCr checks after postoperative day 3 in patients experiencing uncomplicated postoperative course is safe and may lead to both cost savings and decreased patient discomfort.


Subject(s)
Carcinoma, Transitional Cell , Urinary Bladder Neoplasms , Carcinoma, Transitional Cell/surgery , Creatinine , Cystectomy/adverse effects , Humans , Kidney/pathology , Kidney/physiology , Retrospective Studies , Urinary Bladder Neoplasms/pathology , Urinary Bladder Neoplasms/surgery
2.
Neurourol Urodyn ; 40(7): 1704-1719, 2021 09.
Article in English | MEDLINE | ID: mdl-34350618

ABSTRACT

AIMS: Long-term or recreational use of ketamine affects the urinary system and can result in ketamine-induced cystitis (KIC). Rodent models of KIC are important to study KIC pathophysiology and are paramount to the future development of therapies for this painful condition. This review aims to provide a summary of rodent models of KIC, focusing on disease induction, experimental methods, and pathological features of the model. METHOD: A literature search was performed using the National Center for Biotechnology Information (NCBI) Pubmed database up to March 2021. 20 articles met the inclusion criteria and were finally selected. RESULTS: There are considerable variations in the rodent models used for studying KIC in terms of the strain of the animal being used; dose, duration, and route of ketamine administration to induce KIC, and assessment of pathological features. CONCLUSION: KIC remains difficult to fully recapitulate in humans. Improved characterization of KIC models and the experimental parameters and meticulous discussion on translational limitations are required to improve the translational value of research using rodent models of KIC.


Subject(s)
Cystitis , Ketamine , Animals , Cystitis/chemically induced , Ketamine/toxicity , Rodentia
3.
Neurourol Urodyn ; 40(1): 461-469, 2021 01.
Article in English | MEDLINE | ID: mdl-33232534

ABSTRACT

AIMS: To evaluate the long-term outcomes of sacral neuromodulation (SNM), and patient characteristics that may predict long-term success or complications. METHODS: A single-center retrospective cohort study was performed of all patients who underwent SNM testing and implantation. Outcome results, resolution of symptoms, and device removal were reported. Multivariable logistic regression was used to identify predictors of success. Cox proportional hazards model was used to identify predictors for device removal. RESULTS: Four hundred and thrity four patients underwent SNM test phase of which 241 (median age 48.0 years, 91.7% [221/241] female) had device implantation and were followed up for median [range] time of 4.0 (3 months-20.5 years) years. Multivariable logistic regression showed that male gender (odds ratio: 0.314; 95% confidence interval: 0.164-0.601, p = .0005) was independently associated with decreased peripheral nerve evaluation success. At final follow-up for patients who originally had device implantation, median (interquartile range) percent of symptoms resolution of all patients was 60.0% (0%-90%) and 69.3% (167/241) had SNM successful outcomes. Cox proportional hazards model showed no difference for time to SNM device removal with respect to patient age, gender, or diagnosis. 69.3% (167/241) patients had at least 1 surgical re-intervention. The most common reason at first surgical re-intervention was lead change only (26.3%, 44/167). CONCLUSION: SNM is a minimally invasive procedure with good long-term success rates. There is a high revision rate but overall, SNM has a good safety profile and excellent long-term outcomes.


Subject(s)
Electric Stimulation Therapy/methods , Lumbosacral Plexus/physiopathology , Urologic Diseases/therapy , Female , Humans , Male , Middle Aged , Retrospective Studies , Time Factors , Treatment Outcome
4.
Molecules ; 24(23)2019 Nov 21.
Article in English | MEDLINE | ID: mdl-31766439

ABSTRACT

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.


Subject(s)
Cannabinoids/pharmacology , Cystitis, Interstitial/drug therapy , Hyperalgesia/drug therapy , Inflammation/drug therapy , Lipopolysaccharides/toxicity , Polycyclic Sesquiterpenes/pharmacology , Receptor, Cannabinoid, CB2/metabolism , Animals , Behavior, Animal/drug effects , Cystitis, Interstitial/chemically induced , Cystitis, Interstitial/metabolism , Cystitis, Interstitial/pathology , Disease Models, Animal , Female , Hyperalgesia/metabolism , Hyperalgesia/pathology , Inflammation/metabolism , Inflammation/pathology , Mice , Mice, Inbred BALB C
5.
J Urol ; 210(2): 347-348, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37203141
6.
World J Urol ; 36(10): 1555-1568, 2018 Oct.
Article in English | MEDLINE | ID: mdl-30051263

ABSTRACT

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.


Subject(s)
Quality of Life , Spinal Cord Injuries/complications , Urinary Bladder, Neurogenic/therapy , Catheters, Indwelling , Drainage/methods , Humans , Urinary Bladder, Neurogenic/etiology , Urinary Catheterization/methods , Urination
7.
Neurourol Urodyn ; 37(8): 2315-2322, 2018 11.
Article in English | MEDLINE | ID: mdl-29917273

ABSTRACT

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.


Subject(s)
Lower Urinary Tract Symptoms/therapy , Multiple Sclerosis/complications , Urinary Bladder, Neurogenic/therapy , Urinary Catheterization , Humans , Lower Urinary Tract Symptoms/etiology , Male , Treatment Outcome , Urinary Bladder, Neurogenic/etiology
8.
Curr Opin Urol ; 24(6): 578-85, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25203243

ABSTRACT

PURPOSE OF REVIEW: The 5-year and 15-year life expectancy following the treatment of localized prostate cancer is excellent. Patients may develop rare but devastating complications following the surgery for prostate cancer. The purpose of this review is to summarize the available literature to date surrounding the management of the incontinent patient with a concomitant bladder neck contracture (BNC), or sphincteric stricture, following radical prostatectomy. RECENT FINDINGS: The literature consists of several case series, but no clinical trials exist to provide an evidence-based approach to the incontinent patient with concomitant BNC. Fortunately, this is a relatively rare clinical scenario and most cases are successfully managed with urethral dilatation or endoscopic techniques. Multiple endoscopic techniques are available. In addition, some authors include injectable agents in their armamentarium for the treatment of BNC. Open reconstructive techniques or permanent urinary diversion may be necessary in rare cases. Both male slings and artificial urinary sphincter may be considered for the management of concomitant urinary incontinence. Some authors suggest it is safe to proceed with simultaneous artificial urinary sphincter implantation at the time of endoscopic management of the BNC. SUMMARY: Management of the incontinent patient with concomitant BNC represents a challenging situation for the urologist. Several techniques are available to stabilize the BNC before safely proceeding with surgery for urinary incontinence. For the rare, complex case that has failed endoscopic management, referral to a surgeon experienced in reconstructive techniques is warranted.


Subject(s)
Cystoscopy/methods , Dilatation/methods , Prostatectomy/adverse effects , Prostatic Neoplasms/surgery , Suburethral Slings , Urethral Stricture/surgery , Urinary Bladder Neck Obstruction/surgery , Urinary Incontinence, Urge/surgery , Urinary Sphincter, Artificial , Humans , Male , Urethral Stricture/etiology , Urinary Bladder Neck Obstruction/etiology , Urinary Diversion/methods , Urinary Incontinence/etiology , Urinary Incontinence/surgery , Urinary Incontinence, Urge/etiology
9.
Can Urol Assoc J ; 18(1): E1-E6, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37812791

ABSTRACT

INTRODUCTION: The aim of this study was to examine gender diversity within the Canadian Urological Association (CUA) and to compare it with the Quebec Urological Association (QUA). METHODS: A retrospective review of women's representation regarding membership, committees' composition, awards, grants, and conferences between 2012 and 2022 was performed. Data and gender were extracted from databases and annual meeting programs provided by the CUA and the QUA. RESULTS: In 2022, females accounted for 18% (256/1431) of the membership at the CUA and 23% (52/228) at the QUA. The female proportion of committee members at the CUA increased from 9% (63/676) from 2012-2016 to 14% (177/1230) from 2017-2022 (p≤0.0001). In 2022, the QUA had a significantly higher proportion of female committee members than the CUA, with 39% (15/38) vs. 22% (50/225) women (p=0.0226), respectively. Moreover, from 2012-2022, 11% (5/46) of the CUA awards were given to women, whereas 38% (13/34) of the award winners at the QUA were women over the same time period (p=0.0038). Between 2012 and 2022, there were 16% (20/126) female CUA grant recipients and 44% (14/32) at the QUA (p=0.0095). The proportion of grants awarded to women at the CUA increased from 13% (5/39) in 2012-2016 to 17% (15/87) in 2017-2022. Two percent (1/53) of the plenary invited speakers at the CUA annual meetings from 2012-2016 were women, compared with 21% (14/66) from 2017-2022 (p=0.0016). In 2022, 53% (9/17) of invited plenary faculty were women at the QUA annual conference, compared to 23% (3/13) at the CUA annual meeting (p=0.0980). CONCLUSIONS: Over the past 10 years, there has been an increase in women's representation at the CUA and the QUA; however, data show that the increase in female representation at the QUA has outpaced that of the CUA.

10.
Can Urol Assoc J ; 2024 Jun 10.
Article in English | MEDLINE | ID: mdl-38896480

ABSTRACT

INTRODUCTION: Nonagenarians represent a rapidly growing patient population in Canada with unique health concerns. With the goal of preparing urologists to manage this complicated patient populations in the future, we sought to characterize referral patterns, diagnoses, investigations, treatments, and associated complications in a cohort of nonagenarians. Our second goal was to review anticholinergic burden (ACB) and rates of anticoagulation in this patient population and to assess the risk of hematuria in those who were anticoagulated. METHODS: This was a single-center, retrospective chart review of a sample of nonagenarians referred to our tertiary care centre between 2009 and 2017. Demographic information, referral patterns, investigations, treatment plans, and outcomes were assessed. We assessed medication lists to calculate ACB scores at the time of referral, in addition to rates of anticoagulation use. RESULTS: Data was collected for 154 nonagenarians. Hematuria was the most common reason for referral (n=43, 27.9%). Urinary retention and lower urinary tract symptoms (LUTS) were seen in 22 and 36 patients, respectively. The majority of patients underwent routine investigations; however, treatment decisions were frequently based on age and frailty. Mild, moderate and severe ACB scores were seen in 76.6%, 9.33%, and 14.0%, respectively. Of those referred for hematuria, 78.1% were on anticoagulation therapy. CONCLUSIONS: The most common reasons for urologic referral of nonagenarians include hematuria and LUTS. Most nonagenarians are offered routine investigations, and many are offered minor interventions for common benign and malignant urologic diagnoses. When treating nonagenarians, an individualized patient-centered care approach is likely most appropriate.

11.
Chem Biol Interact ; 394: 111003, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38608998

ABSTRACT

The use of flavored e-liquids in electronic nicotine delivery systems (ENDS) has become very popular in recent years, but effects of these products have not been well characterized outside the lung. In this study, acute exposure to the popular flavoring vanillin (VAN) was performed on human proximal tubule (HK-2) kidney cells. Cells were exposed to 0-1000 µM VAN for 24 or 48 h and cellular stress responses were determined. Mitochondrial viability using MTT assay showed a significant decrease between the control and 1000 µM group by 48 h. Seahorse XFp analysis showed significantly increased basal respiration, ATP production, and proton leak after 24 h exposure. By 48 h exposure, these parameters remained significantly increased in addition to non-mitochondrial respiration and maximal respiration. Glycolytic activity after 24 h exposure showed significant decreases in glycolysis, glycolytic capacity, glycolytic reserve, and non-glycolytic acidification. The autophagy markers microtubule-associated protein 1A/1B light chain 3 (LC3B-I and LC3B-II) were probed via western blotting. The ratio of LC3B-II/LC3B-I was significantly increased after 24 h exposure to VAN, but by 48 h this ratio significantly decreased. The mitophagy marker PINK1 showed an increasing trend at 24 h, and its downstream target Parkin was significantly increased between the control and 750 µM group only. Finally, the oxidative stress marker 4-HNE was significantly decreased after 48 h exposure to VAN. These results indicate that acute exposure to VAN in the kidney HK-2 model can induce energy and autophagic changes within the cell.


Subject(s)
Autophagy , Benzaldehydes , Epithelial Cells , Flavoring Agents , Kidney Tubules, Proximal , Humans , Autophagy/drug effects , Kidney Tubules, Proximal/drug effects , Kidney Tubules, Proximal/cytology , Kidney Tubules, Proximal/metabolism , Flavoring Agents/pharmacology , Flavoring Agents/toxicity , Benzaldehydes/pharmacology , Epithelial Cells/drug effects , Epithelial Cells/metabolism , Cell Line , Glycolysis/drug effects , Mitochondria/drug effects , Mitochondria/metabolism , Energy Metabolism/drug effects , Oxidative Stress/drug effects
12.
Biomed Pharmacother ; 175: 116666, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38677246

ABSTRACT

Flavored e-liquid use has become popular among e-cigarette users recently, but the effects of such products outside the lung are not well characterized. In this work, acute exposure to the popular flavoring cinnamaldehyde (CIN) was performed on human proximal tubule (HK-2) kidney cells. Cells were exposed to 0-100 µM CIN for 24-48 h and cellular stress responses were assessed. Mitochondrial viability via MTT assay was significantly decreased at 20 µM for 24 and 48 h exposure. Seahorse XFp analysis showed significantly decreased mitochondrial energy output at 20 µM by 24 h exposure, in addition to significantly reduced ATP Synthase expression. Seahorse analysis also revealed significantly decreased glycolytic function at 20 µM by 24 h exposure, suggesting inability of glycolytic processes to compensate for reduced mitochondrial energy output. Cleaved caspase-3 expression, a mediator of apoptosis, was significantly increased at the 24 h mark. C/EBP homologous protein (CHOP) expression, a mediator of ER-induced apoptosis, was induced by 48 h and subsequently lost at the highest concentration of 100 µM. This decrease was accompanied by a simultaneous decrease in its downstream target cleaved caspase-3 at the 48 h mark. The autophagy marker microtubule-associated protein 1 A/1B light chain 3 (LC3B-I and LC3B-II) expression was significantly increased at 100 µM by 24 h. Autophagy-related 7 (ATG7) protein and mitophagy-related proteins PTEN-induced putative kinase 1 (PINK1) and PARKIN expression were significantly reduced at 24 and 48 h exposure. These results indicate acute exposure to CIN in the kidney HK-2 model induces mitochondrial dysfunction and cellular stress responses.


Subject(s)
Acrolein , Apoptosis , Flavoring Agents , Kidney Tubules, Proximal , Mitochondria , Humans , Acrolein/pharmacology , Acrolein/analogs & derivatives , Acrolein/toxicity , Kidney Tubules, Proximal/drug effects , Kidney Tubules, Proximal/metabolism , Kidney Tubules, Proximal/pathology , Flavoring Agents/toxicity , Flavoring Agents/pharmacology , Cell Line , Mitochondria/drug effects , Mitochondria/metabolism , Apoptosis/drug effects , Autophagy/drug effects , Stress, Physiological/drug effects , Cell Survival/drug effects , Endoplasmic Reticulum Stress/drug effects , Glycolysis/drug effects , Caspase 3/metabolism
13.
J Am Chem Soc ; 135(24): 9149-55, 2013 Jun 19.
Article in English | MEDLINE | ID: mdl-23705688

ABSTRACT

Complexes formed between phi29 DNA polymerase (DNAP) and DNA fluctuate discretely between the pre-translocation and post-translocation states on the millisecond time scale. The translocation fluctuations can be observed in ionic current traces when individual complexes are captured atop the α-hemolysin nanopore in an electric field. The presence of complementary 2'-deoxynucleoside triphosphate (dNTP) shifts the equilibrium across the translocation step toward the post-translocation state. Here we have determined quantitatively the kinetic relationship between the phi29 DNAP translocation step and dNTP binding. We demonstrate that dNTP binds to phi29 DNAP-DNA complexes only after the transition from the pre-translocation state to the post-translocation state; dNTP binding rectifies the translocation but it does not directly drive the translocation. Based on the measured time traces of current amplitude, we developed a method for determining the forward and reverse translocation rates and the dNTP association and dissociation rates, individually at each dNTP concentration and each voltage. The translocation rates, and their response to force, match those determined for phi29 DNAP-DNA binary complexes and are unaffected by dNTP. The dNTP association and dissociation rates do not vary as a function of voltage, indicating that force does not distort the polymerase active site and that dNTP binding does not directly involve a displacement in the translocation direction. This combined experimental and theoretical approach and the results obtained provide a framework for separately evaluating the effects of biological variables on the translocation transitions and their effects on dNTP binding.


Subject(s)
Bacillus Phages/enzymology , DNA-Directed DNA Polymerase/metabolism , Nucleotides/metabolism , Bacillus Phages/metabolism , Base Sequence , DNA/metabolism , Kinetics
14.
Article in English | MEDLINE | ID: mdl-37887683

ABSTRACT

Although evidence for young children (<10) and older adults (>64) highlights an association between physical activity (PA) and executive functions (EFs), there is a paucity of research on adolescents aged 18-24 years. Thus, this study examined the associations between PA and EF and the difference in EF between individuals who achieve the moderate-to-vigorous (MVPA) guidelines and those who do not. Forty-seven participants engaged in a Stroop task, a reverse Corsi-block test, and a task-switching test, to measure inhibition, working memory, and cognitive flexibility, respectively. An ecological momentary assessment (EMA) was used to determine the participant's MVPA and step count, through the "Pathverse" app. Multiple regressions were run to predict the task-switch cost, the Stroop effect, and the backward Corsi span from time spent in MVPA. A two-way ANCOVA examined the effects of achieving the MVPA guidelines on EF. MVPA and step count did not significantly predict EF. There were no significant differences in EF between participants achieving the MVPA guidelines and those that did not. Time spent in MVPA and step count were not significantly associated with working memory, cognitive flexibility, or inhibition in adolescents. Further research is warranted to understand other factors that may significantly affect EF, within and outside an individual's control.


Subject(s)
Executive Function , Exercise , Child , Adolescent , Humans , Child, Preschool , Aged , Young Adult , Adult , Executive Function/physiology , Exercise/psychology , Memory, Short-Term , Stroop Test , Ecological Momentary Assessment
15.
Can Urol Assoc J ; 17(2): 34-38, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36218314

ABSTRACT

INTRODUCTION: Routine measurements of serum hemoglobin (sHgb) are common after abdominal surgery; however, prolonged measurements may be associated with patient anxiety, increased costs, and longer hospitalization without clinical benefit. The objective of this study was to determine the utility of routine sHgb measurements after radical cystectomy (RC) and factors associated with transfusion of packed red blood cell (pRB C) beyond postoperative day (POD ) 2. METHODS: We retrospectively reviewed patients who underwent RC between 2009 and 2019 at a single academic tertiary care center. The number of sHgb measurements for each patient was examined and pRB C transfusion rates were calculated. Multivariable logistic regression was used to determine factors associated with transfusion beyond POD 2. RESULTS: The median number of sHgb measurements per patient during admission was nine (interquartile range [IQR] 7, 25). Overall, 69/240 (28.7%) patients received a postoperative transfusion, including 46/240 (19.2%) patients receiving a transfusion beyond POD 2. Among patients with a sHgb ≥100 g/L on POD 2, 7/85 (8.2%) went on to receive a transfusion beyond this day compared with 39/155 (25.2%) patients with sHgb <100 g/L. On multivariable analysis, risk factors associated with pRB C transfusion beyond POD 2 included older age, lower sHgb on POD 2, and longer length of stay in hospital. CONCLUSIONS: Transfusion of pRB Cs beyond POD 2 was found to be common; however, patients with sHgb ≥100 g/L on POD 2 were at low risk of requiring subsequent transfusion. Discontinuing further routine sHgb checks in these patients may serve to decrease patient anxiety, healthcare costs, and delays in hospital discharge.

16.
Can Urol Assoc J ; 17(6): 199-204, 2023 Jun.
Article in English | MEDLINE | ID: mdl-36952303

ABSTRACT

INTRODUCTION: Radical cystectomy (RC) is associated with high rates of morbidity, prolonged hospital stay, and increased opioid use for postoperative pain management; however, the relationship between postoperative opioid use and length of stay (LOS ) remains uncharacterized. This study serves to investigate the association between postoperative opioid use and length of hospital stay after RC. The relationship between patient and surgical factors on LOS was also characterized. METHODS: We retrospectively reviewed all patients between 2009 and 2019 who underwent RC at our institution. Patient and perioperative variables were analyzed to determine the relationship between postoperative opioid use and LOS using multivariable linear regression analysis. RESULTS: We identified 240 patients for study inclusion with a median age of 70.0 years. Median LOS was 10.0 days, with median daily mg morphine equivalent use of 57.5 for patients. Daily mg morphine equivalent use was significantly associated with an increased LOS, as were previous pelvic radiation, postoperative ileus, and higher Clavien-Dindo grade complication during admission (all p<0.05). Median LOS increased by one day for each increase of 13.2 daily mg morphine equivalents received. CONCLUSIONS: Increased daily opioid use was associated with increased length of hospital stay after RC. Non-opioid-based pain management approaches may be effective in reducing LOS after RC.

17.
Bio Protoc ; 13(23): e4899, 2023 Dec 05.
Article in English | MEDLINE | ID: mdl-38094254

ABSTRACT

Neovascular diseases of the retina, such as diabetic retinopathy (DR) and age-related macular degeneration (AMD), are proliferative retinopathies involving the growth of new blood vessels on the retina, which in turn causes impairment and potential loss of vision. A drawback of conventional angiogenesis assays is that they are not representative of the angiogenic processes in the retina. In the retina, the new blood vessels grow (from pre-existing blood vessels) and migrate into a non-perfused region of the eye including the inner limiting membrane of the retina and the vitreous, both of which contribute to vision loss. The Matrigel Duplex Assay (MDA) measures the migration of angiogenic capillaries from a primary Matrigel layer to a secondary Matrigel layer, which resembles the pathological angiogenesis in AMD and DR. The methodology of MDA is comprised of two steps. In the first step, the human retinal microvascular endothelial cells (HRMECs) are mixed with phenol red-containing Matrigel (in a 1:1 ratio) and seeded in the center of an 8-well chamber slide. After 24 h, a second layer of phenol red-free Matrigel is overlaid over the first layer. Over the course of the next 24 h, the HRMECs invade from the primary Matrigel layer to the secondary layer. Subsequently, the angiogenic sprouts are visualized by brightfield phase contrast microscopy and quantified by ImageJ software. The present manuscript measures the angiogenesis-inhibitory activity of the Src kinase inhibitor PP2 in primary HRMECs using the MDA. The MDA may be used for multiple applications like screening anti-angiogenic drugs, measuring the pro-angiogenic activity of growth factors, and elucidating signaling pathways underlying retinal angiogenesis in normal and disease states.

18.
J Med Chem ; 66(7): 4294-4323, 2023 04 13.
Article in English | MEDLINE | ID: mdl-37000154

ABSTRACT

The heterocyclic vanilloid compound capsaicin is responsible for the spicy and pungent flavor of chili peppers. Several convergent studies have shown that capsaicin suppresses the growth of multiple human cancers. Apart from capsaicin, natural and synthetic capsaicin-like compounds display growth suppressive activity in human cancers. The pharmacophore of capsaicin is comprised of three regions, namely region A (the aromatic ring), region B (the amide bond), and region C (the side chain). The present manuscript describes the isolation and synthesis of capsaicin analogs which have structural modifications in region B of the molecule. Furthermore, the pharmacokinetic properties, anticancer activity of region B capsaicin analogs, as well as the signaling pathways (underlying the growth-inhibitory effects of region B capsaicin analogs) have also been described. The discovery of novel, second-generation region B capsaicin analogs may foster the hope of innovative nutrition-based combination therapies in human cancers.


Subject(s)
Antineoplastic Agents , Capsicum , Humans , Capsaicin/pharmacology , Capsicum/chemistry , Capsicum/metabolism , Antineoplastic Agents/pharmacology , Antineoplastic Agents/therapeutic use
19.
Curr Urol Rep ; 13(3): 247-55, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22528118

ABSTRACT

Pelvic organ prolapse (POP) is a common disorder estimated to affect 15%-30% of women over the age of 50 years. About 11% of women will require surgery by the age of 80 years and there is an estimated 30% rate of prolapse recurrence. In an attempt to improve surgical outcomes, biologic grafts and synthetic meshes have been implemented in the repair of POP. Biologic grafts have been used with the hope of avoiding complications associated with synthetic mesh. This presents the existing data surrounding the use of biologic grafts in the surgical repair of anterior compartment, vaginal vault, and posterior compartment prolapse.


Subject(s)
Pelvic Organ Prolapse/surgery , Surgical Mesh , Biocompatible Materials/therapeutic use , Cystocele/surgery , Dyspareunia/etiology , Female , Humans , Polypropylenes , Transplantation, Heterologous , Transplantation, Homologous , Uterine Prolapse/surgery
20.
Public Health Rep ; 137(1_suppl): 111S-118S, 2022.
Article in English | MEDLINE | ID: mdl-35775911

ABSTRACT

OBJECTIVES: While the needs of human trafficking survivors have been documented in the academic discourse, the saliency of such needs is understudied. This study aimed to reveal the critical needs of service provision for human trafficking survivors in a Midwestern state as perceived by multidisciplinary service providers. METHODS: Targeting health care, social service, law enforcement, public health, and other service providers involved in anti-human trafficking service delivery, we disseminated a survey using purposive and snowball sampling. Drawing from survey responses collected in 2019 from 107 service providers working with 422 survivors of human trafficking in the previous 12 months in a Midwestern state, we examined the saliency of needs from the perspective of service providers in the health care, criminal justice, and social service sectors. RESULTS: Respondents indicated on a Likert scale (1-5) the level of need for 37 social, health care, and legal services in their communities. The top-indicated needs statewide were mental health care, shelter/housing, peer mentorship programs, legal services, transportation, and provider training in juvenile courts, schools, law enforcement, and health care settings on human trafficking. CONCLUSION: The results suggest the need for statewide responses, such as legal assistance networks, telemental health options, and enhanced training collaborations between interpersonal violence and anti-human trafficking service providers. The study findings are generalizable beyond the study site in 3 ways that can guide strategic action: (1) they provide a framework for state-level analysis and strategic planning that parallels the results; (2) they show that regional variation is possible and should be accounted for in state-level study design, analysis, and strategic planning; and (3) the implications for housing assistance, legal assistance, mental health/substance use disorder-related health care, and training are scalable.


Subject(s)
Mental Disorders , Survivors , Humans , Mental Health , Needs Assessment , Social Work , Survivors/psychology
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