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Research progress on arsenic, arsenic-containing medicinal materials, and arsenic-containing preparations: clinical application, pharmacological effects, and toxicity.

Introduction: The toxicity of arsenic is widely recognized globally, mainly harming human health by polluting water, soil, and food. However, its formulations can also be used for the clinical treatment of diseases such as leukemia and tumors. Arsenic has been used as a drug in China for over 2,400 years, with examples such as the arsenic-containing drug realgar mentioned in Shennong's Herbal Classic. We have reviewed references on arsenic over the past thirty years and found that research has mainly focused on clinical, pharmacological, and toxicological aspects. Results and Discussion: The f

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… The interaction of arsenic with arachidonic acid biotransformation ( Bunderson et al., 2004 ), affecting vasoconstriction and diastole, may be one of the mechanisms responsible for cardiovascular toxicity. …

Physiological functions and pharmacological targeting of transient receptor potential channels.

Transient receptor potential (TRP) channels represent an extensive and diverse protein family fulfilling salient roles as versatile cellular sensors and effectors. The pivotal role of TRP and related ion channels in sensory processes has been well documented. Over the last few years, a new concept has emerged that TRP proteins control an exceptionally broad spectrum of homeostatic physiological functions such as maintenance of body temperature, blood pressure, transmitter release from neurons, mineral and energy homeostasis, and reproduction. This notion is further supported by more than 20 he

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… A common motif of some of them is based on the indirect activation of TRPV4 by hypotonic stress, causing the conversion of arachidonic acid to epoxyeicosatrienoic acids that, in turn, activate TRPV4. 490 , 491 In glandular and exocrine cells, the activation of Ca 2+ influx through TRPV4 seems to initiate …

Non-coding RNA in cancer drug resistance: Underlying mechanisms and clinical applications.

Cancer is one of the most frequently diagnosed malignant diseases worldwide, posing a serious, long-term threat to patients' health and life. Systemic chemotherapy remains the first-line therapeutic approach for recurrent or metastatic cancer patients after surgery, with the potential to effectively extend patient survival. However, the development of drug resistance seriously limits the clinical efficiency of chemotherapy and ultimately results in treatment failure and patient death. A large number of studies have shown that non-coding RNAs (ncRNAs), particularly microRNAs, long non-coding RN

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… Moreover, lncROPM contributed to the maintenance of BCSC stemness by facilitating phospholipid metabolism and the production of free fatty acid (such as arachidonic acid) via increasing the PLA2G16 levels ( 203 ). …

Japan Atherosclerosis Society (JAS) Guidelines for Prevention of Atherosclerotic Cardiovascular Diseases 2022.

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… In the 4-fraction assay, dihomo-γ-linolenic acid (DGLA), arachidonic acid (AA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) are measured by gas chromatography. Fatty acid fractions are measured as an adjunct to the diagnosis and evaluation of dyslipidemia and ASCVD. …

RNA modifications in cancer.

RNA modifications are emerging as critical cancer regulators that influence tumorigenesis and progression. Key modifications, such as N6-methyladenosine (m6A) and 5-methylcytosine (m5C), are implicated in various cellular processes. These modifications are regulated by proteins that write, erase, and read RNA and modulate RNA stability, splicing, translation, and degradation. Recent studies have highlighted their roles in metabolic reprogramming, signaling pathways, and cell cycle control, which are essential for tumor proliferation and survival. Despite these scientific advances, the precise

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… This affects the methylation and degradation of ACSL4 protein, lowering proferroptotic phosphatidylethanolamine levels and leading to ferroptosis resistance. 245 CD8 T cells stimulate ACSL4 expression via IFNγ, altering tumor cell lipid profiles and promoting the incorporation of arachidonic acid (AA …

Novel therapeutic approaches for pulmonary fibrosis.

Pulmonary fibrosis represents the end stage of a number of heterogeneous conditions and is, to a greater or lesser degree, the hallmark of the interstitial lung diseases. It is characterized by the excessive deposition of extracellular matrix proteins within the pulmonary interstitium leading to the obliteration of functional alveolar units and in many cases, respiratory failure. While a small number of interstitial lung diseases have known aetiologies, most are idiopathic in nature, and of these, idiopathic pulmonary fibrosis is the most common and carries with it an appalling prognosis - med

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… Prostacyclin (PGI 2 ) is another arachidonic acid metabolite derived via the COX-2 pathway. …

Osteoporosis: the current status of mesenchymal stem cell-based therapy.

Osteoporosis, or bone loss, is a progressive, systemic skeletal disease that affects millions of people worldwide. Osteoporosis is generally age related, and it is underdiagnosed because it remains asymptomatic for several years until the development of fractures that confine daily life activities, particularly in elderly people. Most patients with osteoporotic fractures become bedridden and are in a life-threatening state. The consequences of fracture can be devastating, leading to substantial morbidity and mortality of the patients. The normal physiologic process of bone remodeling involves

A comprehensive review on pain: Model, target, therapy, and prospect (Review).

Pain serves as both a protective physiological response essential for species survival and a global health issue affecting human well‑being and societal development. The present review systematically summarized and analyzed the research progresses on pain through a multidimensional analytical framework encompassing animal models, molecular targets, therapeutic approaches and future prospects. In animal modeling, neuropathic pain paradigms have evolved from traditional mechanical compression to composite models that combine dynamic displacement and chemical stimulation. Cancer‑induced pain mode

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… Cyclooxygenase (COX) COX is a rate-limiting enzyme that synthesizes prostaglandins from arachidonic acid. It exists as two classical isoforms, COX-1 and COX-2, which regulate diverse physiological and pathological processes. …

Targeting myeloid villains in the treatment with immune checkpoint inhibitors in gastrointestinal cancer.

Despite the clinical outcomes being extremely limited, blocking immune inhibitory checkpoint pathways has been in the spotlight as a promising strategy for treating gastrointestinal cancer. However, a distinct strategy for the successful treatment is obviously needed in the clinical settings. Myeloid cells, such as neutrophils, macrophages, dendritic cells, and mast cells, are the majority of cellular components in the human immune system, but have received relatively less attention for the practical implementation than T cells and NK cells in cancer therapy because of concentration of the int

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… COXs produce eicosanoids such as prostaglandin E2 (PGE2) and thromboxane 2 (TXA2) from arachidonic acid to cause inflammation ( 145 ). COX1 is constitutively expressed in most tissues, but is upregulated in some types of cancer. …

Hypertension and Prohypertensive Antineoplastic Therapies in Cancer Patients.

The development of a wide range of novel antineoplastic therapies has improved the prognosis for patients with a wide range of malignancies, which has increased the number of cancer survivors substantially. Despite the oncological benefit, cancer survivors are exposed to short- and long-term adverse cardiovascular toxicities associated with anticancer therapies. Systemic hypertension, the most common comorbidity among cancer patients, is a major contributor to the increased risk for developing these adverse cardiovascular events. Cancer and hypertension have common risk factors, have overlappi

Cancer Chemoprevention: A Strategic Approach Using Phytochemicals.

Cancer chemoprevention approaches are aimed at preventing, delaying, or suppressing tumor incidence using synthetic or natural bioactive agents. Mechanistically, chemopreventive agents also aid in mitigating cancer development, either by impeding DNA damage or by blocking the division of premalignant cells with DNA damage. Several pre-clinical studies have substantiated the benefits of using various dietary components as chemopreventives in cancer therapy. The incessant rise in the number of cancer cases globally is an issue of major concern. The excessive toxicity and chemoresistance associat

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… Previous studies have speculated that the immunosuppressive effect of emodin is mediated through hydrogen peroxide and regulated by the by products of arachidonic acid metabolism ( Huang et al., 1992 ). …

Tumour-associated macrophages: versatile players in the tumour microenvironment.

Tumour-Associated Macrophages (TAMs) are one of the pivotal components of the tumour microenvironment. Their roles in the cancer immunity are complicated, both pro-tumour and anti-cancer activities are reported, including not only angiogenesis, extracellular matrix remodeling, immunosuppression, drug resistance but also phagocytosis and tumour regression. Interestingly, TAMs are highly dynamic and versatile in solid tumours. They show anti-cancer or pro-tumour activities, and interplay between the tumour microenvironment and cancer stem cells and under specific conditions. In addition to the c

2020 ACVIM Forum On Demand Research Abstract Program.

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… PLA2G4F is responsible for facilitating the breakdown of phospholipase to arachidonic acid and is ultimately involved in the development of prostaglandins thought to play a role in heart disease and cardiac development. …

Curcumin and Its Derivatives as Anticancer Agents in Head and Neck Cancer: Molecular Mechanisms and Preclinical Evidence

Head and neck cancer (HNC), particularly oral squamous cell carcinoma (OSCC), remains a major clinical challenge due to its aggressive behavior, high recurrence rates, and frequent resistance to conventional therapies. Natural compounds, especially curcumin and its derivatives, have gained increasing attention as potential anticancer agents due to their ability to target multiple molecular pathways involved in tumor progression. This review critically evaluates the current preclinical and translational evidence supporting curcumin and its derivatives as monotherapeutic agents in HNC, with part

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… Dysregulation of arachidonic acid metabolism, particularly the 5-lipoxygenase (5-LOX) pathway, has been implicated in oral carcinogenesis and represents a potential target for cancer prevention. Accordingly, several compounds were evaluated for their inhibitory activity against 5-LOX. …

Abstract

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Oleocanthal as a Multifunctional Anti-Cancer Agent: Mechanistic Insights, Advanced Delivery Strategies, and Synergies for Precision Oncology.

Oleocanthal (OC), a secoiridoid phenolic compound exclusive to extra virgin olive oil (EVOO), has emerged as a promising nutraceutical with multifaceted anti-cancer properties. Despite its well-characterized anti-inflammatory and antioxidant effects, the mechanistic breadth and translational potential of OC in oncology remain underexplored and fragmented across the literature. This comprehensive review synthesizes and critically analyzes recent advances in the molecular, pharmacological, and translational landscape of OC's anti-cancer activities, providing an integrative framework to bridge pr

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… COX-2 catalyzes the conversion of arachidonic acid to prostaglandin H2 (PGH2), which mPGES-1 subsequently transforms into PGE2—a lipid mediator that activates EP1-4 receptors to drive pro-tumorigenic signaling. …

Indian Society of Periodontology Good Clinical Practice Recommendations for dental pain management and use of analgesics.

Pain is one of the most frequent reasons for seeking dental care and significantly influences patient comfort, treatment acceptance, and clinical outcomes. Effective management of dental pain requires accurate diagnosis, timely intervention, and the rational use of analgesics supported by evidence-based clinical decision-making. Recognizing the need for structured guidance for everyday dental practice, the Indian Society of Periodontology has developed Good Clinical Practice Recommendations on Pain Management and the Use of Analgesics in Dental Clinics. These recommendations were formulated by

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… NSAIDs exert their pharmacological action by inhibiting cyclooxygenase (COX) enzymes, specifically COX-1 and COX-2, responsible for the biosynthesis of prostaglandins from arachidonic acid. …

15th Конгресс Европейской ассоциации клинической фармакологии и терапии (ЕАКПТ)

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Anti-Infective-Associated AKI: A Narrative Review of the Epidemiology, Mechanisms, Risk Factors, Biomarkers, Clinical Course, Monitoring, Prevention, and Therapeutic Strategies.

Acute kidney injury (AKI) occurs commonly in hospitalized patients, especially patients in intensive care units (ICUs). Medications are among the major causative factors of AKI. This narrative review addressed and updated different aspects of anti-infective-associated AKI, including amphotericin B, cidofovir, foscarnet, polymyxins, vancomycin, and aminoglycosides. There is no standard definition or operational criteria to describe anti-infective-associated AKI. Characteristically, it usually occurs during the first two weeks of treatment and is typically dose dependent. Functional resolution o

Biomaterials from the sea: Future building blocks for biomedical applications.

Marine resources have tremendous potential for developing high-value biomaterials. The last decade has seen an increasing number of biomaterials that originate from marine organisms. This field is rapidly evolving. Marine biomaterials experience several periods of discovery and development ranging from coralline bone graft to polysaccharide-based biomaterials. The latter are represented by chitin and chitosan, marine-derived collagen, and composites of different organisms of marine origin. The diversity of marine natural products, their properties and applications are discussed thoroughly in t