Objective: The role of nonselective cation channels of the transient receptor potential channel (TRPC) family in essential hypertension has not yet been investigated.
Methods: We studied TRPCs in 51 patients with essential hypertension and 51 age-matched and sex-matched normotensive control subjects. Calcium and gadolinium influx into human monocytes was determined using the fluorescent dye technique. TRPC expression was measured using reverse transcriptase-polymerase chain reaction and in-cell western assay. Gene silencing by small interfering RNA for specific TRPC knockdown was also performed.
Results: We observed an increased gadolinium/calcium-influx ratio through TRPC in essential hypertensive patients compared with normotensive control subjects [cation influx ratio (mean +/- SEM), 125 +/- 14 versus 80 +/- 7%; each n = 51; P < 0.01], due to an increase of gadolinium influx in hypertensive patients compared with normotensive control subjects (48 +/- 4 versus 36 +/- 3%; each n = 51; P < 0.05). We observed a significant increase of TRPC3 and TRPC5 protein expression in essential hypertensive patients compared with normotensive control subjects (normalized TRPC3 expression, 3.21 +/- 0.59 versus 1.36 +/- 0.07; each n = 20; P < 0.01; normalized TRPC5 expression, 2.10 +/- 0.28 versus 1.40 +/- 0.52; each n = 12; P < 0.05). We used small interfering RNA for knockdown of TRPC5. The thereby reduced channel expression caused a significant attenuation of calcium and gadolinium influx.
Conclusion: This study points to an important role of TRPCs in essential hypertension.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/01.hjh.0000226201.73065.14 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Contributing factors to postoperative surgical site infections in pituitary neuroendocrine tumors undergoing endonasal transsphenoidal resection.
Sci Rep
January 2025
Department of Neurosurgery, Xinxiang Central Hospital, 56 Jinsui Avenue, Weibin District, Xinxiang, 453000, Henan, China.
Pituitary Neuroendocrine Tumors (PitNETs), often treated via endonasal transsphenoidal resection, present a risk for postoperative surgical site infections (SSIs), including intracranial infections such as meningitis. Identifying the risk factors associated with these infections is crucial for improving surgical outcomes and patient care. A retrospective study was conducted at a medical center from June 2020 to June 2023.
View Article and Find Full Text PDFLivedoid vasculopathy, calciphylaxis, and hypertensive ischemic ulcer: update on ischemic ulcers due to impaired microcirculation of the lower limbs.
An Bras Dermatol
January 2025
Department of Infectology, Dermatology, Diagnostic Imaging and Radiotherapy, Faculty of Medicine, Universidade Estadual Paulista, Botucatu, SP, Brazil. Electronic address:
Ischemic ulcers due to compromised microcirculation of the lower limbs cause painful ulcers that pose a challenge for the correct diagnosis and treatment. Livedoid vasculopathy, calciphylaxis, and Martorell's hypertensive ischemic ulcer are part of this group and present some similarities due to microvascular occlusive impairment. They are often misdiagnosed as inflammatory ulcers such as pyoderma gangrenosum and vasculitis.
View Article and Find Full Text PDFHigh prevalence of unrecognized chronic kidney disease in the Lolland-Falster Health Study: a population-based study in a rural provincial area of Denmark.
Eur J Public Health
January 2025
Department of Nephrology and Endocrinology, Rigshospitalet, Copenhagen, Denmark.
Chronic kidney disease (CKD) affects 10-15% globally and is a marked independent risk factor for cardiovascular disease. Prevalence estimations are essential for public health planning and implementation of CKD treatment strategies. This study aimed to estimate the prevalence and stages of CKD in the population-based Lolland-Falster Health Study, set in a rural provincial area with the lowest socioeconomic status in Denmark.
View Article and Find Full Text PDFRelationship between platelet distribution width and non-dipping pattern in children with essential hypertension.
BMC Pediatr
January 2025
Department of Cardiology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China.
Background: Hypertension has shown a trend of prevalence at younger ages, and the non-dipping pattern is associated with target organ damage in hypertension. However, few studies have yet investigated the clinical characteristics and risk factors of non-dipper status in essential hypertension children. This study aimed to explore the clinical characteristics and possible indicators associated with non-dipper status in children with essential hypertension.
View Article and Find Full Text PDFActivating transcription factor-3 orchestrates the modulation of vascular anti-contractile activity and relaxation by governing the secretion of HDL-bound sphingosine-1-phosphate in perivascular adipose tissue.
Br J Pharmacol
January 2025
Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
Background And Purpose: Perivascular adipose tissues (PVATs) play a critical role in modulating vascular homeostasis and protecting against cardiovascular dysfunction-mediated blood pressure dysregulation. We demonstrated that the activating transcription factor-3 (Atf3) gene in the PVAT is crucial for improving vascular wall tension abnormalities; however, its protective mechanism remains unclear. Herein, we aim to determine whether ATF3 regulates PVAT-derived relaxing factor (PVDRF) biosynthesis and if its secretion contributes to vasorelaxation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!