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HDACs and Their Inhibitors on Post-Translational Modifications: The Regulation of Cardiovascular Disease.

Cardiovascular diseases (CVD), such as myocardial hypertrophy, heart failure, atherosclerosis, and myocardial ischemia/reperfusion (I/R) injury, are among the major threats to human health worldwide. Post-translational modifications alter the function of proteins through dynamic chemical modification after synthesis. This mechanism not only plays an important role in maintaining homeostasis and plays a crucial role in maintaining normal cardiovascular function, but is also closely related to the pathological state of various diseases. Histone deacetylases (HDACs) play an important role in the

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… Myofibril growth during cardiac hypertrophy is regulated by phosphorylation and acetylation of the actin-capping protein CapZβ1, and phenylephrine (PE) treatment of cardiomyocytes reduces HDAC3 binding to myofibrils, which leads to the phosphorylation of CapZβ1 at the serine 204 site and acetylation … Myofibril growth during cardiac hypertrophy is regulated through dual phosphorylation and acetylation of the actin capping protein CapZ. Cell Signal. 2016;28:1015–1024. doi: 10.1016/j.cellsig.2016.05.011. 52. Zhao T., Kee H.J., Bai L., Kim M.K., Kee S.J., Jeong M.H. …

Selective activation of AMPK-PGC-1alpha or PKB-TSC2-mTOR signaling can explain specific adaptive responses to endurance or resistance training-like electrical muscle stimulation.

Endurance training induces a partial fast-to-slow muscle phenotype transformation and mitochondrial biogenesis but no growth. In contrast, resistance training mainly stimulates muscle protein synthesis resulting in hypertrophy. The aim of this study was to identify signaling events that may mediate the specific adaptations to these types of exercise. Isolated rat muscles were electrically stimulated with either high frequency (HFS; 6x10 repetitions of 3 s-bursts at 100 Hz to mimic resistance training) or low frequency (LFS; 3 h at 10 Hz to mimic endurance training). HFS significantly increased

Kidney-tonifying blood-activating decoction delays ventricular remodeling in rats with chronic heart failure by regulating gut microbiota and metabolites and p38 mitogen-activated protein kinase/p65 nuclear factor kappa-B/aquaporin-4 signaling pathway.

ETHNOPHARMACOLOGICAL RELEVANCE: Myocardial infarction has likely contributed to the increased prevalence of heart failure(HF).As a result of ventricular remodeling and reduced cardiac function, colonic blood flow decreases, causing mucosal ischemia and hypoxia of the villous structure of the intestinal wall.This damage in gut barrier function increases bowel wall permeability, leading to fluid metabolism disorder,gut microbial dysbiosis, increased gut bacteria translocation into the circulatory system and increased circulating endotoxins, thus promoting a typical inflammatory state.Traditional

Неклассическое действие витамина D.

Становится все более очевидным, что витамин D имеет широкий спектр действий в человеческом теле. Помимо его хорошо известного воздействия на гомеостаз кальция/фосфата, витамин D влияет на мышечную функцию, сердечно-сосудистую гомеостаз, нервную функцию и иммунную реакцию. Дефицит/недостаток витамина D был связан с мышечной слабостью и высоким уровнем заболеваемости различными хроническими заболеваниями, такими, как сердечно-сосудистые заболевания, рак, множественный склероз и тип 1 и 2 диабет. Самое важное то, что низкий уровень витамина D был признан независимым прогнозом смертности от всех п

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… Vitamin D and Muscle Strengthening Vitamin D deficiency causes reduced aktomyosin content of myofibrils, low calcium content of mitochondria, reduced calcium uptake into the sarcoplasmic reticulum, and low serum levels of muscle enzymes [ 3 ]. …

The Role of Cullin-RING Ligases in Striated Muscle Development, Function, and Disease.

The well-orchestrated turnover of proteins in cross-striated muscles is one of the fundamental processes required for muscle cell function and survival. Dysfunction of the intricate protein degradation machinery is often associated with development of cardiac and skeletal muscle myopathies. Most muscle proteins are degraded by the ubiquitin-proteasome system (UPS). The UPS involves a number of enzymes, including E3-ligases, which tightly control which protein substrates are marked for degradation by the proteasome. Recent data reveal that E3-ligases of the cullin family play more diverse and c

Fatty Infiltration of Multifidus Muscles: An Easily Overlooked Risk Factor for the Severity of Osteoporotic Vertebral Fractures.

ObjectivesOsteoporotic vertebral fractures (OVFs) are a critical public health concern requiring urgent attention, and severe OVFs impose substantial health and economic burdens on patients and society. Analysis of the risk factors for severe OVF is imperative to actively prevent the occurrence of this degenerative disorder. This study aimed to investigate the risk factors associated with the severity of OVF, with a specific focus on changes in the paraspinal muscles.MethodsA total of 281 patients with a first-time single-level acute OVF between January 2016 and January 2023 were enrolled in t

Cardiotoxicity Induced by Anticancer Therapies: A Call for Integrated Cardio-Oncology Practice.

The introduction of novel oncologic therapies, including targeted agents, immunotherapies, and antibody-drug conjugates, has transformed the therapeutic landscape of cancer care. This evolution has resulted in a dual clinical scenario; while survival outcomes have markedly improved, leading to a growing population of long-term cancer survivors, an increasing incidence of previously unrecognized treatment-related toxicities has emerged. Among these, cardiovascular adverse events represent some of the most prevalent and clinically significant complications observed in both conventional chemother

Emerging Insights into Granulomatous and Amyloidogenic Cardiomyopathies.

Background: Granulomatous and amyloidogenic cardiomyopathies are infiltrative conditions that can be fatal if left untreated. Among these, cardiac amyloidosis and cardiac sarcoidosis are significant but often underdiagnosed causes of heart failure, each serving as cardiac manifestations of broader systemic diseases. Advancements in imaging techniques and the emergence of novel therapies-particularly for cardiac amyloidosis-have brought these conditions into sharper focus for both clinicians and researchers. Methods: We conducted a comprehensive review of the literature by searching databases i

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… The early impairment of LV GLS reflects the disruption of the myofibrils that are primarily organized longitudinally, with the greatest concentration in the subendocardial layer [ 43 ]. …

Protein breakdown in muscle wasting: role of autophagy-lysosome and ubiquitin-proteasome.

Skeletal muscle adapts its mass as consequence of physical activity, metabolism and hormones. Catabolic conditions or inactivity induce signaling pathways that regulate the process of muscle loss. Muscle atrophy in adult tissue occurs when protein degradation rates exceed protein synthesis. Two major protein degradation pathways, the ubiquitin-proteasome and the autophagy-lysosome systems, are activated during muscle atrophy and variably contribute to the loss of muscle mass. These degradation systems are controlled by a transcription dependent program that modulates the expression of rate-lim

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… Interestingly, p97 and its cofactors, Ufd1 and p47, have been found associated with specific myofibrillar proteins, suggesting a role for p97 in extracting ubiquitinated proteins from myofibrils ( Piccirillo and Goldberg, 2012 ). …

Updates in Anthracycline-Mediated Cardiotoxicity.

Cardiotoxicity is one of the main adverse effects of chemotheraphy, affecting the completion of cancer therapies and the short- and long-term quality of life. Anthracyclines are currently used to treat many cancers, including the various forms of leukemia, lymphoma, melanoma, uterine, breast, and gastric cancers. World Health Organization registered anthracyclines in the list of essential medicines. However, anthracyclines display a major cardiotoxicity that can ultimately culminate in congestive heart failure. Taking into account the growing rate of cancer survivorship, the clinical significa

Identification of potential biomarkers and therapeutic targets for osteoarthritis associated with arginine and proline metabolism based on transcriptome sequencing and bioinformatics.

Background and objectivesOsteoarthritis (OA) is a chronic degenerative joint disease. Approximately 300 million people worldwide suffer from OA, which shows a high incidence in middle-aged and elderly populations, with a prevalence of 50% among individuals aged over 60 years. Its core clinical symptoms consist of joint pain, swelling, and dysfunction. Studies have shown that arginine and proline metabolism play an important role in the pathogenesis and progression of OA, but the specific mechanism is still unclear. This study aimed to identify biomarkers and drug therapeutic targets for OA ass

Investigating key genes and molecular mechanisms of prostate cancer and coronary heart disease through transcriptomics and experimental validation.

BackgroundProstate cancer (PC), a common male urogenital malignancy, and coronary heart disease (CHD), a cardiovascular disease from coronary lesions causing myocardial ischemia, interact in comorbidity. This study integrated their transcriptome data to reveal comorbid mechanisms and develop cross-disease targets.MethodsIn this research, candidate genes were derived from differential analysis and intersection analysis. Subsequently, machine learning algorithms were integrated with receiver operating characteristic (ROC) curve assessment and expression confirmation to identify key genes. Nomogr

Exploring the role of Transcranial magnetic stimulation in cognitive impairment and sarcopenia: a narrative review.

Sarcopenia and cognitive impairment (CI) are major contributors to disability among the elderly, diminishing their quality of life and placing also a significant burden on healthcare systems and societies. There are currently no effective treatments for sarcopenia and CI. Interestingly, recent research has revealed a strong connection between these two conditions. Although the exact mechanisms of this relationship remain unclear, factors such as chronic inflammation, mitochondrial oxidative stress, and impaired communication through the muscle-brain axis have been put forward. Transcranial mag

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… At the same time, oxidative stress can also affect muscle excitation-contraction coupling and the cycling of cross-bridges within myofibrils, leading to a reduction in muscle mass and exacerbating the development of sarcopenia ( Baumann et al., 2016 ; Liguori et al., 2018 ). …

Biomolecular condensates as dynamic regulators of musculoskeletal homeostasis, disease, and therapeutic challenges.

Biomolecular condensates are membraneless assemblies that concentrate proteins, nucleic acids, and other biomolecules into dynamic cellular compartments. Liquid-liquid phase separation (LLPS) is one important route by which such condensates form, particularly when multivalent interactions generate liquid-like, reversible assemblies. However, not every condensate or disease-associated assembly should be explained solely by LLPS. In the musculoskeletal system, condensates have been linked to transcription, signal transduction, RNA metabolism, stress responses, tissue development, homeostasis, an

Metal-on-Metal Total Hip Resurfacing Arthroplasty: An Evidence-Based Analysis.

OBJECTIVE: The objective of this review was to assess the safety and effectiveness of metal on metal (MOM) hip resurfacing arthroplasty for … ty rate of 43%. Examination of the tissue from these patients revealed markedly abnormal changes in myofibrils (heart muscles), mitochondria, and sarcoplasmic reticulum. In Belgium, a similar epidemic was reported in 1966, in which, cobalt was used in some Belgian beers. (ABSTRACT TRUNCATED)

Cellular and molecular mechanisms of muscle atrophy.

Skeletal muscle is a plastic organ that is maintained by multiple pathways regulating cell and protein turnover. During muscle atrophy, proteolytic systems are activated, and contractile proteins and organelles are removed, resulting in the shrinkage of muscle fibers. Excessive loss of muscle mass is associated with poor prognosis in several diseases, including myopathies and muscular dystrophies, as well as in systemic disorders such as cancer, diabetes, sepsis and heart failure. Muscle loss also occurs during aging. In this paper, we review the key mechanisms that regulate the turnover of co

Update on preclinical models of cancer therapy-related cardiac dysfunction: Challenges and perspectives. A scientific statement of the Heart Failure Association (HFA) of the ESC, the ESC Council of Cardio-Oncology, and the ESC Working Group on Cellular Biology of the Heart.

New anticancer therapies with potential cardiovascular side effects are continuously being introduced into clinical practice, with new and often unexpected toxicities becoming apparent only after clinical introduction. These unknown toxicities should be identified and understood beforehand to better prepare patients and physicians, enabling the implementation of effective treatments. Therefore, there is a crucial need for appropriate preclinical models to understand the biological basis of their cardiotoxicity. This scientific statement summarizes the preclinical models hitherto used, from in

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… Using a biomimetic culture system, pig and human heart slices can remain completely viable and functionally and structurally intact for 6 days in culture, also enabling the assessment of contraction and relaxation kinetics on isolated single myofibrils after culture. 83 , 84 To date, canine, porcine, …

An integrative review of nonobvious puzzles of cellular and molecular cardiooncology.

Oncologic patients are subjected to four major treatment types: surgery, radiotherapy, chemotherapy, and immunotherapy. All nonsurgical forms of cancer management are known to potentially violate the structural and functional integrity of the cardiovascular system. The prevalence and severity of cardiotoxicity and vascular abnormalities led to the emergence of a clinical subdiscipline, called cardiooncology. This relatively new, but rapidly expanding area of knowledge, primarily focuses on clinical observations linking the adverse effects of cancer therapy with deteriorated quality of life of

Mechanisms of ferroptotic and non-ferroptotic organ toxicity of chemotherapy: protective and therapeutic effects of ginger, 6-gingerol and zingerone in preclinical studies.

Chemotherapy (CT) is one of the flagship options for the treatment of cancers worldwide. It involves the use of cytotoxic anticancer agents to kill or inhibit the proliferation of cancer cells. However, despite its clinical efficacy, CT triggers side effect toxicities in several organs, which may impact cancer patient's quality of life and treatment outcomes. While the side effect toxicity is consistent with non-ferroptotic mechanisms involving oxidative stress, inflammation, mitochondrial impairment and other aberrant signalling leading to apoptosis and necroptosis, recent studies show that f

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… Ginger extract displayed euchromatic nucleus with some regular arrangement of myofibrils, in addition to intact, intercalated discs and Z lines (El-Hawwary and Omar 2019 ). One of the most known adverse effects of CP is nephrotoxicity. …

Семья гистона деацетилазы в здравии и болезни.

Классические деацетилазы, включая классы I, II и IV, в зависимости от цинка, повсеместно присутствуют у млекопитающих и играют жизненно важную роль в многочисленных биологических процессах. На сегодняшний день eleven Были выявлены члены < < хисттон деацетилаза > > , а именно < < хиттон деацетилаза > > . 1 через гистонную деацетилазу 11. Растущий объем данных подчеркивает важнейшую роль этих гистоновых деацетилазов как в физиологических, так и патологических условиях. В частности, эти гистонные деацетилазы участвуют в различных клеточных процессах, включая воспаление, ме