1
|
de Carvalho RP, do Vale B, Dsouki NA, Cafarchio EM, De Luca LA, Aronsson P, Sato MA. GABAergic and glutamatergic transmission reveals novel cardiovascular and urinary bladder control features in the shell nucleus accumbens. Brain Res 2023; 1818:148520. [PMID: 37562564 DOI: 10.1016/j.brainres.2023.148520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/24/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
The shell Nucleus Accumbens (NAcc) projects to the lateral preoptic area, which is involved in the central micturition control and receives inputs from medullary areas involved in cardiovascular control. We investigated the role of GABAergic and glutamatergic transmission in the shell NAcc on intravesical pressure (IP) and cardiovascular control. Male Wistar rats with guide cannulas implanted bilaterally in the shell NAcc 7 days prior to the experiments were anesthetized with 2% isoflurane in 100% O2 and subjected to cannulation of the femoral artery and vein for mean arterial pressure (MAP) and heart rate recordings (HR) and infusion of drugs, respectively. The urinary bladder (UB) was cannulated for IP measurement. A Doppler flow probe was placed around the renal arterial for renal blood flow (RBF) measurement. After the baseline MAP, HR, IP and RBF recordings for 15 min, GABA or bicuculline methiodate (BMI) or L-glutamate or kynurenic acid (KYN) or saline (vehicle) were bilaterally injected into the shell NAcc and the variables were measured for 30 min. Data are as mean ± SEM and submitted to Student́s t test. GABA injections into the shell NAcc evoked a significant fall in MAP and HR and increased IP and RC compared to saline. L-glutamate in the shell NAcc increased MAP, HR and IP and reduced RC. Injections of BMI and KYN elicited no changes in the variables recorded. Therefore, the GABAergic and glutamatergic transmissions in neurons in the shell NAcc are involved in the neural pathways responsible for the central cardiovascular control and UB regulation.
Collapse
Affiliation(s)
- Rodrigo P de Carvalho
- Dept. Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, SP, Brazil.
| | - Bárbara do Vale
- Dept. Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, SP, Brazil.
| | - Nuha A Dsouki
- Dept. Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, SP, Brazil.
| | - Eduardo M Cafarchio
- Dept. Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, SP, Brazil.
| | - Laurival A De Luca
- Dept. Physiology and Pathology, School of Dentistry, São Paulo State University - UNESP, Araraquara, SP, Brazil.
| | - Patrik Aronsson
- Dept Pharmacology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Monica A Sato
- Dept. Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, SP, Brazil.
| |
Collapse
|
2
|
Activation of 5-HT3 receptors in the medulla oblongata is involved in the phasic control of urinary bladder. Neurosci Lett 2022; 790:136886. [PMID: 36179901 DOI: 10.1016/j.neulet.2022.136886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/13/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022]
Abstract
The control of micturition depends on reflex mechanisms, however, it undergoes modulation from cortex, pons and medullary areas. This study investigated if the activation of 5-HT3 receptors in the medulla influences the urinary bladder (UB) regulation in rats. Isoflurane female Wistar rats were submitted to catheterization of the femoral artery and vein for mean arterial pressure (MAP) and heart rate (HR) recordings and injection of drugs, respectively. The UB was cannulated for intravesical pressure (IP) measurement. The Doppler flow probe was placed around the left renal artery for renal conductance (RC) recordings. Phenylbiguanide (PB) and granisetron (GN) were injected into the 4th brain ventricle in rats with guide cannulas implanted 5 days prior to the experiments; or PB and GN were randomly injected intravenously or applied topically (in situ) on the UB. PB injection into 4th V significantly increased IP (68.67 ± 11.70%) and decreased MAP (-29 ± 6 mmHg) compared to saline (0.34 ± 0.64% and -2 ± 2 mmHg), with no changes in the HR and RC. GN injection into the 4th V did not significantly change the IP and RC compared to saline, nevertheless, significantly increased MAP (25 ± 4 mmHg) and heart rate (36 ± 9 bpm) compared to saline. Intravenous PB and GN only produced cardiovascular effects, whilst PB but not GN in situ on the UB evoked increase in IP (111.60 ± 30.36%). Therefore, the activation of 5HT-3 receptors in medullary areas increases the intravesical pressure and these receptors are involved in the phasic control of UB. In contrast, 5-HT3 receptors in the medulla oblongata are involved in the pathways of the tonic control of the cardiovascular system. The activation of 5-HT3 receptors in the bladder cause increase in intravesical pressure and this regulation seem to be under phasic control as the blockade of such receptors elicits no changes in baseline intravesical pressure.
Collapse
|
3
|
Lamy GB, Cafarchio EM, do Vale B, Antonio BB, Venancio DP, de Souza JS, Maciel RM, Giannocco G, Silva Neto AF, Oyama LM, Aronsson P, Sato MA. Unveiling the Angiotensin-(1–7) Actions on the Urinary Bladder in Female Rats. Front Physiol 2022; 13:920636. [PMID: 35928558 PMCID: PMC9345415 DOI: 10.3389/fphys.2022.920636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/13/2022] [Indexed: 11/25/2022] Open
Abstract
Angiotensin-(1–7) is a peptide produced by different pathways, and regardless of the route, the angiotensin-converting enzyme 2 (ACE-2) is involved in one of the steps of its synthesis. Angiotensin-(1–7) binds to Mas receptors localized in different cells throughout the body. Whether angiotensin-(1–7) exerts any action in the urinary bladder (UB) is still unknown. We investigated the effects of intravenous and topical (in situ) administration of angiotensin-(1–7) on intravesical pressure (IP) and cardiovascular variables. In addition, the Mas receptors and ACE-2 gene and protein expression were analyzed in the UB. Adult female Wistar rats were anesthetized with 2% isoflurane in 100% O2 and submitted to the catheterization of the femoral artery and vein for mean arterial pressure (MAP) and heart rate (HR) recordings, and infusion of drugs, respectively. The renal blood flow was acquired using a Doppler flow probe placed around the left renal artery and the renal conductance (RC) was calculated as a ratio of Doppler shift (kHz) and MAP. The cannulation of the UB was performed for IP recording. We observed that angiotensin-(1–7) either administered intravenously [115.8 ± 28.6% angiotensin-(1–7) vs. −2.9 ± 1.3% saline] or topically [147.4 ± 18.9% angiotensin-(1–7) vs. 3.2 ± 2.8% saline] onto the UB evoked a significant (p < 0.05) increase in IP compared to saline and yielded no changes in MAP, HR, and RC. The marked response of angiotensin-(1–7) on the UB was also investigated using quantitative real-time polymerase chain reaction and western blotting assay, which demonstrated the mRNA and protein expression of Mas receptors in the bladder, respectively. ACE-2 mRNA and protein expression was also observed in the bladder. Therefore, the findings demonstrate that angiotensin-(1–7) acts in the UB to increase the IP and suggest that this peptide can be also locally synthesized in the UB.
Collapse
Affiliation(s)
- Gustavo B. Lamy
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
| | - Eduardo M. Cafarchio
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
| | - Bárbara do Vale
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
| | - Bruno B. Antonio
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
| | - Daniel P. Venancio
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
| | - Janaina S. de Souza
- Department Biological Sciences, Federal University of Sao Paulo, Diadema, Brazil
| | - Rui M. Maciel
- Department Medicine, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Gisele Giannocco
- Department Biological Sciences, Federal University of Sao Paulo, Diadema, Brazil
- Department Medicine, Federal University of Sao Paulo, Sao Paulo, Brazil
| | | | - Lila M. Oyama
- Department Physiology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Patrik Aronsson
- Department Pharmacology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Monica A. Sato
- Department Morphology and Physiology, Centro Universitario FMABC, Santo Andre, Brazil
- *Correspondence: Monica A. Sato,
| |
Collapse
|
4
|
Hashimoto M, Shimizu N, Nishimoto M, Minami T, Fujita K, Yoshimura K, Hirayama A, Uemura H. Sarcopenia and Visceral Obesity are Significantly Related to Severe Storage Symptoms in Geriatric Female Patients. Res Rep Urol 2021; 13:557-563. [PMID: 34395328 PMCID: PMC8357624 DOI: 10.2147/rru.s321323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/23/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose This study aimed to elucidate the relationship of psoas muscle atrophy and visceral obesity with lower urinary tract symptoms in geriatric female patients. Patients and Methods We retrospectively reviewed the medical records of female patients aged ≥65 years. The psoas muscle index was defined, using computed tomography, as the cross-sectional area of the psoas muscle at the third lumbar vertebral level divided by the body surface area. We also measured visceral fat area at the umbilical level using computed tomography. We used logistic regression analysis to examine the relationships between the International Prostate Symptom Score (total score, voiding subscore, and storage subscore) and variables, such as age, body mass index, psoas muscle index, and visceral fat area. The International Prostate Symptom Score was categorized as mild, moderate, or severe. Results One hundred thirty-nine patients were included in our study. In the logistic regression analysis, we found statistically significant relationships between severe (versus mild-to-moderate) International Prostate Symptom Score storage subscore and variables, including low and high levels of psoas muscle index and visceral fat area, respectively. We could not find any significant relationships between the International Prostate Symptom Score total score and voiding subscore and the variables. Conclusion Psoas muscle atrophy and visceral fat accumulation are potential risk factors for severe storage symptoms in female patients aged ≥65 years.
Collapse
Affiliation(s)
- Mamoru Hashimoto
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Nobutaka Shimizu
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Mitsuhisa Nishimoto
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Takafumi Minami
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazutoshi Fujita
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuhiro Yoshimura
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Akihide Hirayama
- Department of Urology, Kindai Nara Hospital, Osaka-Sayama, Japan
| | - Hirotsugu Uemura
- Department of Urology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| |
Collapse
|
5
|
Lamy GB, Cafarchio EM, do Vale B, Antonio BB, Venancio DP, de Souza JS, Maciel RM, Giannocco G, Aronsson P, Sato MA. Lateral Preoptic Area Neurons Activated by Angiotensin-(1-7) Increase Intravesical Pressure: A Novel Feature in Central Micturition Control. Front Physiol 2021; 12:682711. [PMID: 34322035 PMCID: PMC8311566 DOI: 10.3389/fphys.2021.682711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/14/2021] [Indexed: 11/23/2022] Open
Abstract
Central micturition control and urine storage involve a multisynaptic neuronal circuit for the efferent control of the urinary bladder. Electrical stimulation of the lateral preoptic area (LPA) at the level of the decussation of the anterior commissure in cats evokes relaxation of the bladder, whereas ventral stimulation of LPA evokes vigorous contraction. Endogenous Angiotensin-(1–7) [(Ang-(1–7)] synthesis depends on ACE-2, and its actions on binding to Mas receptors, which were found in LPA neurons. We aimed to investigate the Ang-(1–7) actions into the LPA on intravesical pressure (IP) and cardiovascular parameters. The gene and protein expressions of Mas receptors and ACE-2 were also evaluated in the LPA. Angiotensin-(1–7) (5 nmol/μL) or A-779 (Mas receptor antagonist, 50 nmol/μL) was injected into the LPA in anesthetized female Wistar rats; and the IP, mean arterial pressure (MAP), heart rate (HR), and renal conductance (RC) were recorded for 30 min. Unilateral injection of Ang-(1–7) into the LPA increased IP (187.46 ± 37.23%) with peak response at ∼23–25-min post-injection and yielded no changes in MAP, HR, and RC. Unilateral or bilateral injections of A-779 into the LPA decreased IP (−15.88 ± 2.76 and −27.30 ± 3.40%, respectively) and elicited no changes in MAP, HR, and RC. The genes and the protein expression of Mas receptors and ACE-2 were found in the LPA. Therefore, the LPA is an important part of the circuit involved in the urinary bladder control, in which the Ang-(1–7) synthetized into the LPA activates Mas receptors for increasing the IP independent on changes in RC and cardiovascular parameters.
Collapse
Affiliation(s)
- Gustavo B Lamy
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| | - Eduardo M Cafarchio
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| | - Bárbara do Vale
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| | - Bruno B Antonio
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| | - Daniel P Venancio
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| | - Janaina S de Souza
- Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Rui M Maciel
- Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Gisele Giannocco
- Department of Medicine, Federal University of São Paulo, São Paulo, Brazil.,Department of Biological Sciences, Federal University of São Paulo, Diadema, Brazil
| | - Patrik Aronsson
- Department of Pharmacology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Monica A Sato
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, Centro Universitario FMABC, Santo Andre, Brazil
| |
Collapse
|
6
|
Wang J, Dai L, Yue X, Shen C, Li T, Long L, Zhi Y, Wang Y, Shen G, Shi C, Liu Y, Fang Q, Li W. IR-61 Improves Voiding Function via Mitochondrial Protection in Diabetic Rats. Front Pharmacol 2021; 12:608637. [PMID: 33935703 PMCID: PMC8080033 DOI: 10.3389/fphar.2021.608637] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/26/2021] [Indexed: 12/26/2022] Open
Abstract
Diabetic bladder dysfunction (DBD) afflicts nearly half of diabetic patients, but effective treatment is lacking. In this study, IR-61, a novel heptamethine cyanine dye with potential antioxidant effects, was investigated to determine whether it can alleviate DBD. Rats were intraperitoneally injected with IR-61 or vehicle after diabetes was induced with streptozotocin. Before evaluating the effects of IR-61 in improving DBD by filling cystometry, we detected its distribution in tissues and subcellular organelles by confocal fluorescence imaging. Near infrared (NIR) imaging showed that IR-61 could accumulate at high levels in the bladders of diabetic rats, and confocal images demonstrated that it was mainly taken up by bladder smooth muscle cells (BSMCs) and localized in mitochondria. Then, filling cystometry illustrated that IR-61 significantly improved the bladder function of diabetic rats. The histomorphometry results showed that IR-61 effectively mitigated the pathological changes in bladder smooth muscle (BSM) in diabetic rats. Furthermore, IR-61 remarkably reduced the number of apoptotic BSMCs and the unfavorable expression of proteins related to the mitochondrial apoptotic pathway (Bcl-2, BAX, Cytochrome C, and cleaved Caspase-9) in diabetic rats. Moreover, the frozen section staining and transmission electron microscopy results proved that IR-61 significantly reduced the reactive oxygen species (ROS) levels and prevented the mitochondrial mass and morphology damage in the BSM of diabetic rats. In addition, IR-61 upregulated the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and its associated antioxidant proteins in the BSM of diabetic rats. Together, these results indicate that IR-61 can improve the voiding function of rats with DBD by protecting the mitochondria of BSMCs from oxidative stress, which is possibly mediated through the activation of the Nrf2 pathway.
Collapse
Affiliation(s)
- Jianwu Wang
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Linyong Dai
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Xiaofeng Yue
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Chongxing Shen
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Tong Li
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Lei Long
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Yi Zhi
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Yawei Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Gufang Shen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Chunmeng Shi
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Yunsheng Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force Medicine, Third Military Medical University, Chongqing, China
| | - Qiang Fang
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| | - Weibing Li
- Department of Urology, The Third Affiliated Hospital (Gener Hospital) of Chongqing Medical University, Chongqing, China
| |
Collapse
|