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Specialty: Cytology
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Total 1150 results found since Jan 2013.
PPP1R12C Promotes Atrial Hypocontractility in Atrial Fibrillation
CONCLUSIONS: Patients with AF exhibit increased levels of PPP1R12C protein compared with controls. PPP1R12C overexpression in mice increases PP1c targeting to MLC2a and causes MLC2a dephosphorylation, which reduces atrial contractility and increases AF inducibility. These findings suggest that PP1 regulation of sarcomere function at MLC2a is a key determinant of atrial contractility in AF.PMID:37737016 | DOI:10.1161/CIRCRESAHA.123.322516
Source: Cell Research - September 22, 2023 Category: Cytology Authors: Srikanth Perike Francisco J Gonzalez-Gonzalez Issam Abu-Taha Frederick W Damen Laurin M Hanft Ken S Lizama Anahita Aboonabi Andrielle E Capote Yuriana Aguilar-Sanchez Benjamin Levin Zhenbo Han Arvind Sridhar Jacob Grand Jody Martin Joseph G Akar Chad M Wa Source Type: research
To block or not to block: Targeting SK channels in diseased hearts
Atrial fibrillation (AF) is the most common arrhythmia, affecting more than 1% of general population and reaching over 10% in advanced age in the USA. Atrial fibrillation drastically increases the risk of stroke and promotes development of cardiomyopathy and congestive heart failure. Existing pharmacological approaches using β-blockers and inhibitors of Na+, Ca2+ and K+ channels to treat AF are effective only in 50% of cases. Furthermore, these drugs could affect ventricular tissue promoting proarrhythmic changes in electrical conduction, intracellular Ca2+ homeostasis, or action potential duration (APD).
Source: Journal of Molecular and Cellular Cardiology - September 22, 2023 Category: Cytology Authors: Dmitry Terentyev, Andriy E. Belevych, Bum-Rak Choi, Shanna Hamilton Source Type: research
Nrf2 and Ferroptosis: A New Research Direction for Ischemic Stroke
Cell Mol Neurobiol. 2023 Sep 20. doi: 10.1007/s10571-023-01411-y. Online ahead of print.ABSTRACTIschemic stroke (IS) is one of the leading causes of death and morbidity worldwide. As a novel form of cell death, ferroptosis is an important mechanism of ischemic stroke. Nuclear factor E2-related factor 2 (Nrf2) is the primary regulator of cellular antioxidant response. In addition to alleviating ischemic stroke nerve damage by reducing oxidative stress, Nrf2 regulates genes associated with ferroptosis, suggesting that Nrf2 may inhibit ferroptosis after ischemic stroke. However, the specific pathway of Nrf2 on ferroptosis in ...
Source: Cellular and Molecular Neurobiology - September 20, 2023 Category: Cytology Authors: Xiaoman Deng Wenming Chu Hanrui Zhang Yongjun Peng Source Type: research
The hemodynamic interplay between pulmonary ischemia-reperfusion injury and right ventricular function in lung transplantation: A translational porcine model
In conclusion, we demonstrate a delicate balance between development of pulmonary ischemia-reperfusion injury and right ventricular function during lung transplantation. Furthermore, we provide a physiological basis for potential benefit of extracorporeal life support technology.PMID:37724349 | DOI:10.1152/ajplung.00281.2022
Source: American Journal of Physiology. Lung Cellular and Molecular Physiology - September 19, 2023 Category: Cytology Authors: Michaela Orlitov á Tom Verbelen Anna E Frick Arno Vanstapel Dieter Van Beersel Sofie Ordies Jan Van Slambrouck Janne Kaes Jin Xin Walter Coudyzer Stijn E Verleden Geert M Verleden Bart M Vanaudenaerde Dirk E Van Raemdonck Robin Vos Laurens J Ceulemans Pi Source Type: research
CircNCOA4 knockdown attenuates OGD-induced neuron injury through miR-338-5p/PDE4B axis
Exp Brain Res. 2023 Sep 16. doi: 10.1007/s00221-023-06702-w. Online ahead of print.ABSTRACTCircular RNAs (circRNAs) have been revealed to be involved in the pathology of acute ischemic stroke (AIS). Herein, we aimed to study the role and mechanism of circNCOA4 in ischemic stroke. The neuron-like cell line SK-N-SH of the experiment group was cultured in oxygen-glucose deprivation (OGD) condition. Cell viability and apoptosis were evaluated by cell counting kit-8 and flow cytometry. The oxidative damage and endoplasmic reticulum stress (ERS) were analyzed by measuring the production of reactive oxygen species (ROS), malondia...
Source: Cell Research - September 16, 2023 Category: Cytology Authors: Danyang Wang Sai Xiao Xiaoming Li Wenbo Qi Source Type: research
Treatment of Stroke at a Delayed Timepoint with a Repurposed Drug Targeting Sigma 1 Receptors
In this study, we hypothesized that oral oxeladin citrate would stimulate BDNF secretion and improve stroke outcomes when administered to male rats starting 48 h after transient middle cerebral artery occlusion. Oxeladin did not alter blood clotting and crossed the blood brain barrier within 30 min of oral administration. Rats underwent 90 min of transient middle cerebral artery occlusion. Forty-eight hours later rats began receiving daily oxeladin (135 mg/kg) for 11 days. Oxeladin significantly improved neurological function on days 3, 7, and 14 following MCAO. Infarct size was not altered by a single dose, but the final ...
Source: Cell Research - September 13, 2023 Category: Cytology Authors: Derek A Schreihofer Dhwanil Dalwadi Seongcheol Kim Daniel Metzger Anthony Oppong-Gyebi Paromita Das-Earl John A Schetz Source Type: research
Linkage of blood cell division cycle 42 with T helper cells, and their correlation with anxiety, depression, and cognitive impairment in stroke patients
This study aimed to assess the correlation between blood CDC42 and Th cells, and their association with mental issues in stroke patients. Peripheral blood samples were obtained from 264 stroke patients and 50 controls. Then, serum CDC42 was measured by enzyme-linked immunosorbent assay, and Th1, Th2, and Th17 cells were detected by flow cytometry. Hospital Anxiety and Depression Scale (HADS) and Mini Mental State Examination (MMSE) were applied to patients. CDC42 was decreased (P<0.001), Th1 (P=0.013) and Th17 (P<0.001) cells were elevated, while Th2 cells (P=0.108) showed no difference in stroke patients compared to...
Source: Cell Research - September 13, 2023 Category: Cytology Authors: Haifeng Ma Qing Chang Jujuan Jia Yaoyuan Zhang Gang Wang Yuanyuan Li Source Type: research
Coating-Free Culture Medium for Establishing and Maintaining Human Induced Pluripotent Stem Cells
In this study, we develop an innovative coating-free medium for expanding hPSCs. The xenofree medium supports the weekend-free culture and competitive growth of hPSCs on several cell culture plastics without an additional pre-coating process. The pluripotent stemness of the expanded cells is stably sustained for more than 10 passages, featured with high pluripotent marker expressions, normal karyotyping, and differentiating capacity for three germ layers. The expression levels of some integrins are reduced, compared with those of the hPSCs on Matrigel. This medium also successfully supports the clonal expansion and induced...
Source: Cell Transplantation - September 12, 2023 Category: Cytology Authors: Chih-Yao Lin Yu-Yun Ching Shih-Fang Wu Yi-Ko Lee Hueng-Chuen Fan Liang-Yu Su Su-Yi Tsai Yu-Ching Chen Ching-I Shen Hong-Lin Su Source Type: research
Tranexamic acid in a mouse model of cerebral amyloid angiopathy: setting the stage for a novel stroke treatment approach
CONCLUSION: Long-term TXA treatment does not alter brain Aβ levels or impact neurologic behavior in mice predisposed to amyloid deposition and had minor effects on the levels of inflammatory mediators. This finding supports the safety of TXA and lays the foundation for TXA as a novel treatment to reduce sICH in patients with CAA.PMID:37694270 | PMC:PMC10483050 | DOI:10.1016/j.rpth.2023.102166
Source: Cell Research - September 11, 2023 Category: Cytology Authors: Zikou Liu Fiona M McCutcheon Heidi Ho Joanne Chia Yunxin Xiao Isabel Tippett Charithani B Keragala Geoffrey C Cloud Robert L Medcalf Source Type: research
Comparative Analysis of the Results of Stroke Treatment With Multiple Administrations of Wharton's Jelly Mesenchymal Stem Cells-Derived HE-ATMP and Standard Conservative Treatment: Case Series Study
Cell Transplant. 2023 Jan-Dec;32:9636897231195145. doi: 10.1177/09636897231195145.ABSTRACTStroke remains still the leading cause of long-term disability worldwide. Although interventions such as early reperfusion, intravenous thrombolysis, and endovascular revascularization have shown neurological benefit in stroke patients, there is still lack of effective treatment enabling regeneration of nervous tissue after cerebral ischemic episodes. Cell therapy is an evolving opportunity for stroke survivors with residual neurological deficits. The purpose of this study was to evaluate safety and potential efficacy of multiple admi...
Source: Cell Transplantation - August 30, 2023 Category: Cytology Authors: Olga Milczarek Jakub Swad źba Patrycja Swad źba Anna Starowicz-Filip Roger M Krzy żewski Stanis ław Kwiatkowski Marcin Majka Source Type: research
