1.Downregulation of PIEZO2 in the Detrusor of Men With Bladder Outlet Obstruction and Its Association With Urinary Retention and Decreased Bladder Compliance
Carlos Henrique Suzuki BELLUCCI ; Thiago Souto HEMERLY ; Luisa Resende Tenório de ALBUQUERQUE ; Ruan PIMENTA ; Vanessa Guimaraes SCHREITER ; Sabrina Thalita dos REIS ; Jose de Bessa JR ; Katia Ramos Moreira LEITE ; Alberto ANTUNES ; Boopathi ETTICKAN ; William C. NAHAS ; Cristiano Mendes GOMES
International Neurourology Journal 2024;28(3):225-231
Purpose:
Recent research has highlighted the mechanotransducer PIEZO2 as a crucial factor in lower urinary tract function, demonstrating associations with bladder compliance (BC), bladder wall thickening, and elevated bladder pressure. We explored the hypothesis that PIEZO2 expression may be associated with lower urinary tract dysfunction in men with bladder outlet obstruction (BOO) due to benign prostatic hyperplasia (BPH).
Methods:
The study included a consecutive series of patients undergoing open prostatectomy for BPH at our hospital between September 2014 and January 2016. All participants underwent comprehensive preoperative evaluations, including urodynamic assessments. During prostatectomy, a full-thickness fragment of the bladder wall was obtained for subsequent PIEZO2 gene expression analysis. Cadaveric organ donors served as the control group.
Results:
PIEZO2 expression was downregulated in the detrusor muscle of men with BPH compared to the control group. Among patients with BPH, those experiencing urinary retention and requiring an indwelling catheter exhibited significantly lower PIEZO2 messenger RNA (mRNA) expression than patients capable of spontaneous voiding. PIEZO2 mRNA expression was similar in men with and without detrusor overactivity. Additionally, a positive correlation was found between PIEZO2 mRNA expression levels and BC.
Conclusions
Our findings indicate that PIEZO2 is downregulated in the detrusor muscle of men with BPH, particularly in those experiencing urinary retention and those with reduced BC. These results suggest a potential role for PIEZO2 in BOOinduced bladder dysfunction. Further research is required to clarify the role of PIEZO mechanotransducers in the bladder and to explore their therapeutic implications.
2.Downregulation of PIEZO2 in the Detrusor of Men With Bladder Outlet Obstruction and Its Association With Urinary Retention and Decreased Bladder Compliance
Carlos Henrique Suzuki BELLUCCI ; Thiago Souto HEMERLY ; Luisa Resende Tenório de ALBUQUERQUE ; Ruan PIMENTA ; Vanessa Guimaraes SCHREITER ; Sabrina Thalita dos REIS ; Jose de Bessa JR ; Katia Ramos Moreira LEITE ; Alberto ANTUNES ; Boopathi ETTICKAN ; William C. NAHAS ; Cristiano Mendes GOMES
International Neurourology Journal 2024;28(3):225-231
Purpose:
Recent research has highlighted the mechanotransducer PIEZO2 as a crucial factor in lower urinary tract function, demonstrating associations with bladder compliance (BC), bladder wall thickening, and elevated bladder pressure. We explored the hypothesis that PIEZO2 expression may be associated with lower urinary tract dysfunction in men with bladder outlet obstruction (BOO) due to benign prostatic hyperplasia (BPH).
Methods:
The study included a consecutive series of patients undergoing open prostatectomy for BPH at our hospital between September 2014 and January 2016. All participants underwent comprehensive preoperative evaluations, including urodynamic assessments. During prostatectomy, a full-thickness fragment of the bladder wall was obtained for subsequent PIEZO2 gene expression analysis. Cadaveric organ donors served as the control group.
Results:
PIEZO2 expression was downregulated in the detrusor muscle of men with BPH compared to the control group. Among patients with BPH, those experiencing urinary retention and requiring an indwelling catheter exhibited significantly lower PIEZO2 messenger RNA (mRNA) expression than patients capable of spontaneous voiding. PIEZO2 mRNA expression was similar in men with and without detrusor overactivity. Additionally, a positive correlation was found between PIEZO2 mRNA expression levels and BC.
Conclusions
Our findings indicate that PIEZO2 is downregulated in the detrusor muscle of men with BPH, particularly in those experiencing urinary retention and those with reduced BC. These results suggest a potential role for PIEZO2 in BOOinduced bladder dysfunction. Further research is required to clarify the role of PIEZO mechanotransducers in the bladder and to explore their therapeutic implications.
3.Downregulation of PIEZO2 in the Detrusor of Men With Bladder Outlet Obstruction and Its Association With Urinary Retention and Decreased Bladder Compliance
Carlos Henrique Suzuki BELLUCCI ; Thiago Souto HEMERLY ; Luisa Resende Tenório de ALBUQUERQUE ; Ruan PIMENTA ; Vanessa Guimaraes SCHREITER ; Sabrina Thalita dos REIS ; Jose de Bessa JR ; Katia Ramos Moreira LEITE ; Alberto ANTUNES ; Boopathi ETTICKAN ; William C. NAHAS ; Cristiano Mendes GOMES
International Neurourology Journal 2024;28(3):225-231
Purpose:
Recent research has highlighted the mechanotransducer PIEZO2 as a crucial factor in lower urinary tract function, demonstrating associations with bladder compliance (BC), bladder wall thickening, and elevated bladder pressure. We explored the hypothesis that PIEZO2 expression may be associated with lower urinary tract dysfunction in men with bladder outlet obstruction (BOO) due to benign prostatic hyperplasia (BPH).
Methods:
The study included a consecutive series of patients undergoing open prostatectomy for BPH at our hospital between September 2014 and January 2016. All participants underwent comprehensive preoperative evaluations, including urodynamic assessments. During prostatectomy, a full-thickness fragment of the bladder wall was obtained for subsequent PIEZO2 gene expression analysis. Cadaveric organ donors served as the control group.
Results:
PIEZO2 expression was downregulated in the detrusor muscle of men with BPH compared to the control group. Among patients with BPH, those experiencing urinary retention and requiring an indwelling catheter exhibited significantly lower PIEZO2 messenger RNA (mRNA) expression than patients capable of spontaneous voiding. PIEZO2 mRNA expression was similar in men with and without detrusor overactivity. Additionally, a positive correlation was found between PIEZO2 mRNA expression levels and BC.
Conclusions
Our findings indicate that PIEZO2 is downregulated in the detrusor muscle of men with BPH, particularly in those experiencing urinary retention and those with reduced BC. These results suggest a potential role for PIEZO2 in BOOinduced bladder dysfunction. Further research is required to clarify the role of PIEZO mechanotransducers in the bladder and to explore their therapeutic implications.
4.Downregulation of PIEZO2 in the Detrusor of Men With Bladder Outlet Obstruction and Its Association With Urinary Retention and Decreased Bladder Compliance
Carlos Henrique Suzuki BELLUCCI ; Thiago Souto HEMERLY ; Luisa Resende Tenório de ALBUQUERQUE ; Ruan PIMENTA ; Vanessa Guimaraes SCHREITER ; Sabrina Thalita dos REIS ; Jose de Bessa JR ; Katia Ramos Moreira LEITE ; Alberto ANTUNES ; Boopathi ETTICKAN ; William C. NAHAS ; Cristiano Mendes GOMES
International Neurourology Journal 2024;28(3):225-231
Purpose:
Recent research has highlighted the mechanotransducer PIEZO2 as a crucial factor in lower urinary tract function, demonstrating associations with bladder compliance (BC), bladder wall thickening, and elevated bladder pressure. We explored the hypothesis that PIEZO2 expression may be associated with lower urinary tract dysfunction in men with bladder outlet obstruction (BOO) due to benign prostatic hyperplasia (BPH).
Methods:
The study included a consecutive series of patients undergoing open prostatectomy for BPH at our hospital between September 2014 and January 2016. All participants underwent comprehensive preoperative evaluations, including urodynamic assessments. During prostatectomy, a full-thickness fragment of the bladder wall was obtained for subsequent PIEZO2 gene expression analysis. Cadaveric organ donors served as the control group.
Results:
PIEZO2 expression was downregulated in the detrusor muscle of men with BPH compared to the control group. Among patients with BPH, those experiencing urinary retention and requiring an indwelling catheter exhibited significantly lower PIEZO2 messenger RNA (mRNA) expression than patients capable of spontaneous voiding. PIEZO2 mRNA expression was similar in men with and without detrusor overactivity. Additionally, a positive correlation was found between PIEZO2 mRNA expression levels and BC.
Conclusions
Our findings indicate that PIEZO2 is downregulated in the detrusor muscle of men with BPH, particularly in those experiencing urinary retention and those with reduced BC. These results suggest a potential role for PIEZO2 in BOOinduced bladder dysfunction. Further research is required to clarify the role of PIEZO mechanotransducers in the bladder and to explore their therapeutic implications.
5.A novel supplement with yeast β-glucan, prebiotic, minerals and Silybum marianum synergistically modulates metabolic and inflammatory pathways and improves steatosis in obese mice.
Victor Abou NEHMI ; Gilson Masahiro MURATA ; Ruan Carlos Macêdo de MORAES ; Gabriely Cristina Alves LIMA ; Danielle Araujo DE MIRANDA ; Katrin RADLOFF ; Raquel Galvão Figuerêdo COSTA ; Joyce de Cassia Rosa de JESUS ; Jéssica Alves DE FREITAS ; Nayara Izabel VIANA ; Ruan PIMENTA ; Katia Ramos Moreira LEITE ; José Pinhata OTOCH ; Ana Flávia Marçal PESSOA
Journal of Integrative Medicine 2021;19(5):439-450
OBJECTIVE:
To evaluate the synergic effects of a novel oral supplement formulation, containing prebiotics, yeast β-glucans, minerals and silymarin (Silybum marianum), on lipid and glycidic metabolism, inflammatory and mitochondrial proteins of the liver, in control and high-fat diet-induced obese mice.
METHODS:
After an acclimation period, 32 male C57BL/6 mice were divided into the following groups: nonfat diet (NFD) vehicle, NFD supplemented, high-fat diet (HFD) vehicle and HFD supplemented. The vehicle and experimental formulation were administered orally by gavage once a day during the last four weeks of the diet (28 consecutive days). We then evaluated energy homeostasis, inflammation, and mitochondrial protein expression in these groups of mice.
RESULTS:
After four weeks of supplementation, study groups experienced reduced glycemia, dyslipidemia, fat, and hepatic fibrosis levels. Additionally, proliferator-activated receptor-α, AMP-activated protein kinase-1α, peroxisome proliferator-activated receptor γ co-activator-1α, and mitochondrial transcription factor A expression levels were augmented; however, levels of inhibitor of nuclear factor-κB kinase subunit α and p65 nuclear factor-κB expression, and oxidative markers were reduced. Notably, the cortisol/C-reactive protein ratio, a well-characterized marker of the hypothalamic-pituitary-adrenal axis immune interface status, was found to be modulated by the supplement.
CONCLUSION
We discovered that the novel supplement was able to modify different antioxidant, metabolic and inflammatory pathways, improving the energy homeostasis and inflammatory status, and consequently alleviated hepatic steatosis.
Animals
;
Antioxidants
;
Dietary Supplements
;
Glucans
;
Hypothalamo-Hypophyseal System
;
Liver
;
Mice
;
Mice, Inbred C57BL
;
Mice, Obese
;
Milk Thistle
;
Minerals
;
Pituitary-Adrenal System
;
Prebiotics
;
Saccharomyces cerevisiae