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Total 94 results found since Jan 2013.

YiQiFuMai Powder Injection Attenuates Coronary Artery Ligation-Induced Heart Failure Through Improving Mitochondrial Function via Regulating ROS Generation and CaMKII Signaling Pathways
This study was carried out in accordance with the recommendations of “Guide for the Care and Use of Laboratory Animals, National Institutes of Health.” The protocol was approved by the “China Pharmaceutical University.” Surgical Preparation The mice were anesthetized with chloral hydrate (4% chloral hydrate, ip). The HF model was induced by CAL as previously reported (Gao et al., 2010). Successful ligation of the coronary artery was confirmed by the occurrence of ST-segment elevation in electrocardiogram. Sham operated mice were performed the same process except left CAL. After ligation, the h...
Source: Frontiers in Pharmacology - April 9, 2019 Category: Drugs & Pharmacology Source Type: research

Orexin-A Prevents Lipopolysaccharide-Induced Neuroinflammation at the Level of the Intestinal Barrier
We examined a possible protective effect of OX-A against LPS-induced ROS formation and microglia activation. To mimic in vitro the connection between gut and brain and to study the putative effect on the cortical microglia, we used a co-culture of Caco-2 cells and primary cortical microglia with Caco-2 cells placed at the apical side of a transwell and primary cortical microglia at the basolateral side. All treatments used to study the apical vs. basal connection were applied to the apical compartment. We used DHR (10 μM, 20 min), a cell-permeable fluorogenic probe useful for the detection of ROS formation, to dete...
Source: Frontiers in Endocrinology - April 9, 2019 Category: Endocrinology Source Type: research

Geniposide Alleviates Glucocorticoid-Induced Inhibition of Osteogenic Differentiation in MC3T3-E1 Cells by ERK Pathway
Conclusion In summary, we demonstrated that geniposide alleviated GC-induced osteogenic suppression in MC3T3-E1 cells. The effects of geniposide were at least partially associated with activating ERK signaling pathway via GLP-1 receptor. Geniposide might be a potential therapeutic agent for protection against GC-induced osteoporosis. Author Contributions BX, DX, CZ, and LW participated in research design. BX, JW, YL, XW, and ZZ conducted the experiments. BX, DX, and LW contributed new reagents or analytic tools and wrote or contributed to the writing of the manuscript. BX, JW, CZ, and DX performed the data analysis. Fu...
Source: Frontiers in Pharmacology - April 17, 2019 Category: Drugs & Pharmacology Source Type: research

Osteoporosis and Sarcopenia Increase Frailty Syndrome in the Elderly
Conclusions World population is aging and the increase in life expectancy is often unhealthy. In particular, musculoskeletal aging, which leads to sarcopenia and osteoporosis, has several causes such as changes in body composition, inflammation, and hormonal imbalance. Sarcopenia, osteoporosis, and more frequently, sarcopenic obesity are commonly associated with aging and frequently closely linked each other, often leading to the development of a frailty syndrome. Frailty syndrome favors an increased risk of loss function in daily activities, for cardiovascular diseases, cancers, falls, and mortality. As the number of eld...
Source: Frontiers in Endocrinology - April 23, 2019 Category: Endocrinology Source Type: research

Impaired Activity of Ryanodine Receptors Contributes to Calcium Mishandling in Cardiomyocytes of Metabolic Syndrome Rats
Conclusion Principal findings of this work are that abnormal Ca2+ transient amplitude, contractile dysfunction; and impaired relaxation of MetS cardiomyocytes underlies intrinsic dysfunctional RyR2 and SERCA pump. Abnormal activity of RyRs was evidenced by its decreased ability to bind [3H]-ryanodine. Although the MetS condition does not modify RyR2 protein expression, its phosphorylation at Ser2814 is decreased, which impairs its capacity for activation during ECC. The dysfunctional RyRs, together with a decreased activity of SERCA pump due to decreased Thr17-PLN phosphorylation suggest a downregulation of CaMKII in MetS...
Source: Frontiers in Physiology - April 29, 2019 Category: Physiology Source Type: research

Density and morphology of coronary artery calcium for the prediction of cardiovascular events: insights from the Framingham Heart Study
ConclusionsDirectly measured CAC density does not predict CVD events due to the strong correlation with CAC volume. The spherical shape and pericardial-sided location of CAC are associated with fewer CVD events and may represent morphological features related to stable coronary plaques.Key Points•Coronary calcium density may not be independently associated with cardiovascular events.•Coronary calcium density correlates strongly with calcium volume.•Spherical shape and pericardial-sided location of CAC are associated with fewer CVD events.
Source: European Radiology - May 1, 2019 Category: Radiology Source Type: research

Summary: International Kidney Cancer Symposium
Conclusions:  Ideal ischemia time is 20-25 minutes or less improves short and long term renal function. >25 minutes carried 5 year risk of new onset stage 4 CKD No differences on GFR for cold vs. warm ischemia times Preoperative GFR and the percent of kidney preserved was a better predictor of post op GFR.  No ischemia preserves renal function better than warm. Longer cold ischemia times were equivalent to shorter warm ischemia times. Quality and quantity of the remaining kidney is associated with ultimate renal function. Robotics in RCC Surgery Gennady Bratslavsky, MD The opening question ...
Source: Kidney Cancer Association - December 15, 2011 Category: Urology & Nephrology Source Type: news

Coronary artery calcifications and 6-month mortality in patients with COVID-19 without known atheromatous disease
CONCLUSIONS: Non-electrocardiogram-gated computed tomography during the initial pulmonary assessment of patients with COVID-19 without atherosclerotic cardiovascular disease showed a high prevalence of mild, moderate and heavy CAC. CAC score was related to 6-month mortality, independent of conventional cardiovascular risk factors. These results highlight the importance of CAC scoring for patients hospitalized with COVID-19, and calls for attention to patients with high CAC.PMID:35305915 | DOI:10.1016/j.acvd.2022.02.007
Source: Archives of Cardiovascular Diseases - March 20, 2022 Category: Cardiology Authors: Anne-Sophie Le Hir Antoine Fayol Elie Mousseaux Nicolas Danchin Victoria Tea Chekrallah Chamandi Gilles Soulat Etienne Puymirat Source Type: research

Association of Changed Serum Brain Biomarkers With Perihematomal Edema and Early Clinical Outcome in Primary ICH Patients
Background: Perihematomal edema (PHE) following primary intracranial hemorrhages (ICHs) affects the patient outcome. Also, serum biomarkers such as S100 calcium-binding protein B (S100B) and glial fibrillary acidic protein (GFAP) have been associated with ICHs outcome. We aimed to investigate the association between these biomarkers and PHE in ICH patients. Methods: In this cross-sectional study, patients with primary ICH between January 2020 and August 2020 were evaluated. All participants underwent spiral brain computed tomography scans upon admission, and 48 to 72 hours later and quantification of initial hem...
Source: The Neurologist - July 1, 2022 Category: Neurology Tags: Original Articles Source Type: research

Unlucky numbers: Fighting murder convictions that rest on shoddy stats
LEIDEN, THE NETHERLANDS— When a Dutch nurse named Lucia de Berk stood trial for serial murder in 2003, statistician Richard Gill was aware of the case. But he saw no reason to stick his nose into it. De Berk was a pediatric nurse at Juliana Children’s Hospital in The Hague. In 2001, after a baby died while she was on duty, a colleague told superiors that De Berk had been present at a suspiciously high number of deaths and resuscitations. Hospital staff immediately informed the police. When investigators reexamined records from De Berk’s shifts, they found 10 suspicious incidents. Three other hospitals where D...
Source: Science of Aging Knowledge Environment - January 19, 2023 Category: Geriatrics Source Type: research

Repair of traumatic lesions to the plasmalemma of neurons and other cells: Commonalities, conflicts, and controversies
We describe current research gaps and potential future developments, such as much more extensive correlations of biochemical/biophysical measures with sub-cellular micromorphology. We compare and contrast naturally occurring sealing with recently-discovered artificially-induced plasmalemmal sealing by polyethylene glycol (PEG) that bypasses all natural pathways for membrane repair. We assess other recent developments such as adaptive membrane responses in neighboring cells following injury to an adjacent cell. Finally, we speculate how a better understanding of the mechanisms involved in natural and artificial plasmalemmal...
Source: Frontiers in Physiology - March 15, 2023 Category: Physiology Source Type: research

Neural Circuit Changes in Neurological Disorders: Evidence from in vivo Two-photon Imaging
Ageing Res Rev. 2023 Apr 13:101933. doi: 10.1016/j.arr.2023.101933. Online ahead of print.ABSTRACTNeural circuits, such as synaptic plasticity and neural activity, are critical components of healthy brain function. The consequent dynamic remodeling of neural circuits is an ongoing procedure affecting neuronal activities. Disruption of this essential process results in diseases. Advanced microscopic applications such as two-photon laser scanning microscopy have recently been applied to understand neural circuit changes during disease since it can visualize fine structural and functional cellular activation in living animals...
Source: Ageing Research Reviews - April 15, 2023 Category: Genetics & Stem Cells Authors: Huan Xiong Fei Tang Yujie Guo Ruxiang Xu Peng Lei Source Type: research

Neural circuit changes in neurological disorders: Evidence from in vivo two-photon imaging
Ageing Res Rev. 2023 Apr 13;87:101933. doi: 10.1016/j.arr.2023.101933. Online ahead of print.ABSTRACTNeural circuits, such as synaptic plasticity and neural activity, are critical components of healthy brain function. The consequent dynamic remodeling of neural circuits is an ongoing procedure affecting neuronal activities. Disruption of this essential process results in diseases. Advanced microscopic applications such as two-photon laser scanning microscopy have recently been applied to understand neural circuit changes during disease since it can visualize fine structural and functional cellular activation in living anim...
Source: Ageing Research Reviews - April 15, 2023 Category: Genetics & Stem Cells Authors: Huan Xiong Fei Tang Yujie Guo Ruxiang Xu Peng Lei Source Type: research