Результаты поиска

Differential Zoledronate Adsorption by Commercially Available Biphasic Calcium Phosphate Bone Substitutes.

Background/Objectives: Osteonecrosis of the jaw, a non-healing wound, is a side effect in patients treated with nitrogen-containing bisphosphonates (e.g., zoledronate) after some oral procedures. Considering zoledronate toxicity in surgical wounds and the capacity of calcium phosphate synthetic compounds to adsorb it, the aim of this work was to demonstrate and elucidate the mechanism underlying this adsorption. Methods: Four different calcium phosphate synthetic bone substitutes were used in this study: AdBone® BCP (0.5-1 mm), Guidor® easy-graft (0.5-1 mm), Maxresorb® (0.5-1 mm) and Maxresorb

Polyphenols enhance the activity of alkylating agents in leukaemia cell lines.

Polyphenols have been shown to sensitize solid tumours to alkylating agents such as cisplatin, and induce apoptosis and/or cell-cycle arrest. Here, we assess the effects of five polyphenols alone and in combination with three alkylating agents: cisplatin, cyclophosphamide and chlorambucil in lymphoid and myeloid leukaemia cells lines, and non-tumour control cells. In lymphoid leukaemia cell lines there was a synergistic reduction in ATP and glutathione levels, an induction of cell cycle arrest, DNA damage and apoptosis when quercetin, apigenin, emodin and rhein were combined with cisplatin and

Совпадение в полном тексте источника
… Likewise, it was reported that rutin hydrate, quercetin dehydrate, hydrocaffeic acid, gallic acid and tannic acid antagonised the induction of apoptosis caused by bortezomib in multiple myeloma cells (MC/CAR, RPMI8226 and U266) [ 40 ]. …

Advances and Prospects of Prolamine Corn Protein Zein as Promising Multifunctional Drug Delivery System for Cancer Treatment.

Zein is a type of prolamine protein that is derived from corn, and it has been recognized by the US FDA as one of the safest biological materials available. Zein possesses valuable characteristics that have made it a popular choice for the preparation of drug carriers, which can be administered through various routes to improve the therapeutic effect of antitumor drugs. Additionally, zein contains free hydroxyl and amino groups that offer numerous modification sites, enabling it to be hybridized with other materials to create functionalized drug delivery systems. However, despite its potential

Совпадение в полном тексте источника
… Francisca Acevedo 29 prepared gallic acid (GA)-loaded polyethylene oxide/zein nanofibers by coaxial electrospinning. Under the optimal process conditions, the loading efficiency of GA was as high as 77%. The release of GA was effectively controlled in both acidic and neutral pH media. …

Proceedings of International Conference on Cell Death in Cancer and Toxicology. February 20-22, 2018. Guest Editors: Kausar M. Ansari, CSIR-IITR, India and Dhyan Chandra, Roswell Park, USA.

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

Calcium Phosphate Bone Substitutes in the Prevention of Bisphosphonate-Related Osteonecrosis of the Jaw: A Review.

Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is characterized by exposed necrotic bone that often progresses with increasing pain and impaired quality of life. Zoledronate, the most potent and widely used bisphosphonate, has been strongly associated with BRONJ development following invasive dental procedures. Given the rising incidence of BRONJ, understanding and implementing effective preventive strategies have become imperative. Biomaterials based on synthetic hydroxyapatite and beta-tricalcium phosphate have been investigated as potential preventive agents. Their therapeutic rati

Oxidative Stress in Multiple Myeloma: Pathogenic Mechanisms, Biomarkers, and Redox-Targeted Therapeutic Strategies.

Multiple myeloma (MM) is an incurable plasma cell malignancy characterized by high metabolic activity, chronic endoplasmic reticulum stress, and persistent redox imbalance. Excessive immunoglobulin synthesis and adaptation to the hypoxic bone marrow microenvironment lead to sustained production of reactive oxygen species (ROS). Their excessive accumulation promotes genomic instability, disease progression, osteolytic bone disease, and resistance to therapy. Paradoxically, MM cells adapt to oxidative stress by activating antioxidant and metabolic defense mechanisms, including Nuclear factor ery

Совпадение в полном тексте источника
… A potential compound with the ability to inhibit the proteasome and inhibit myeloma cell proliferation is gallic acid. Sources of this substance include bananas, strawberries, lemons, red wine, and green tea. …

Shilajit mitigates chemotherapeutic drug-induced testicular toxicity: Study on testicular germ cell dynamics, steroidogenesis modulation, and Nrf-2/Keap-1 signaling.

BACKGROUND: Medications, including chemotherapeutic drugs, contribute to male infertility as external factors by inducing oxidative stress in testicular cells. Shilajit is a naturally occurring bioactive antioxidant used in Ayurvedic medicine to treat a variety of ailments. OBJECTIVE: This study examines the potential of Shilajit to counteract the negative effects of the chemotherapeutic drug cyclophosphamide (CPA) on testicular germ cell dynamics. MATERIAL AND METHODS: Male Parkes mice received single intraperitoneal CPA injection (200 mg/kg BW) on day one, followed by daily supplementation

Совпадение в полном тексте источника
… Gallic acid protects against cyclophosphamide-induced toxicity in testis and epididymis of rats Andrologia 48 2016 393 401 10.1111/and.12459 26223283 15 Ayza MA Zewdie KA Yigzaw EF Ayele SG Tesfaye BA Tafere GG. …

Hesperidin Mitigates Cyclophosphamide-Induced Testicular Dysfunction via Altering the Hypothalamic Pituitary Gonadal Axis and Testicular Steroidogenesis, Inflammation, and Apoptosis in Male Rats.

Cyclophosphamide (CP) is a cytotoxic, cell cycle, non-specific, and antiproliferative drug. This study aimed to address the toxic effects of CP on male fertility and the possible ameliorative role of hesperidin (HSP). Thirty-two adult albino rats were randomly divided into four groups, namely, the negative control, HSP, CP-treated, and CP+HSP-treated groups. The CP-treated rats showed a significant reduction in the levels of serum LH, FSH, testosterone, prolactin, testicular glutathione peroxidase (GPx), and total antioxidant capacity (TAC) with an elevation in levels of malondialdehyde (MDA),

Совпадение в полном тексте источника
… Protective Effect of Gallic Acid on Testicular Tissue, Sperm Parameters, and DNA Fragmentation against Toxicity Induced by Cyclophosphamide in Adult NMRI Mice Urol. J. 2020 17 78 85 10.22037/uj.v0i0.4858 30882156 31. Mohammadi F. Nikzad H. Taghizadeh M. Taherian A. Azami-Tameh A. Hosseini S.M. …

Indian Ayurvedic medicine: Overview and application to brain cancer.

Ayurveda is the traditional medicine system of India, and has been in practice for millennia. It is a traditional approach that uses 1000's of different plant preparations in various combinations for treatment of human ailments, including cancer. Ethnopharmacological and phytochemical analyses are now elucidating the bioactive constituents of the different plant species and herbal formulations, including ashwagandha, curcumin, guduchi, triphala, and others. To provide an overview of: 1) the ethnopharmacology of Ayurveda and several of its most important plant species and formulations, includin

Совпадение в полном тексте источника
… Ethnopharmacological and phytochemical analyses have clarified the major active constituents of the Triphala formulation, which includes tannins, gallic acid, ellagic acid, and chebulinic acid, all of which are potent antioxidants and immunomodulatory agents. …

Application of Nanoparticles for Magnetic Hyperthermia for Cancer Treatment-The Current State of Knowledge.

Hyperthermia (HT) is an anti-cancer therapy commonly used with radio and chemotherapies based on applying heat (39-45 °C) to inhibit tumor growth. However, controlling heat towards tumors and not normal tissues is challenging. Therefore, nanoparticles (NPs) are used in HT to apply heat only to tumor tissues to induce DNA damage and the expression of heat shock proteins, which eventually result in apoptosis. The aim of this review article is to summarize recent advancements in HT with the use of magnetic NPs to locally increase temperature and promote cell death. In addition, the recent develop

Совпадение в полном тексте источника
… For instance, Zhang et al. [ 137 ] developed iron-gallic acid (GA) network-based NPs for MRI-guided chemo-photothermal synergistic therapy of tumors. The spatial location and size of the tumor were accurately determined by T1-weighted MRI based on a Fe-GA network. …

Current Perspectives of the Applications of Polyphenols and Flavonoids in Cancer Therapy.

The development of anticancer therapies that involve natural drugs has undergone exponential growth in recent years. Among the natural compounds that produce beneficial effects on human health, polyphenols have shown potential therapeutic applications in cancer due to their protective functions in plants, their use as food additives, and their excellent antioxidant properties. The possibility of combining conventional drugs-which are usually more aggressive than natural compounds-with polyphenols offers very valuable advantages such as the building of more efficient anticancer therapies with l

Совпадение в полном тексте источника
… Epigallocatechin Gallate Epigallocatechin gallate (epigallocatechin-3-gallate or EGCG) is a catechin that is mostly found in tea and one of the polyphenolic compounds most commonly found in nature; it is also the ester of epigallocatechin and gallic acid [ 118 ]. …

Medicinal Plants with Anti-Leukemic Effects: A Review.

Leukemia is a leukocyte cancer that is characterized by anarchic growth of immature immune cells in the bone marrow, blood and spleen. There are many forms of leukemia, and the best course of therapy and the chance of a patient's survival depend on the type of leukemic disease. Different forms of drugs have been used to treat leukemia. Due to the adverse effects associated with such therapies and drug resistance, the search for safer and more effective drugs remains one of the most challenging areas of research. Thus, new therapeutic approaches are important to improving outcomes. Almost half

Plants as a Source of Anticancer Agents: From Bench to Bedside.

Cancer is the second leading cause of death after cardiovascular diseases. Conventional anticancer therapies are associated with lack of selectivity and serious side effects. Cancer hallmarks are biological capabilities acquired by cancer cells during neoplastic transformation. Targeting multiple cancer hallmarks is a promising strategy to treat cancer. The diversity in chemical structure and the relatively low toxicity make plant-derived natural products a promising source for the development of new and more effective anticancer therapies that have the capacity to target multiple hallmarks in

Совпадение в полном тексте источника
… It is considered a polyphenolic product with a complex structure, and it contains a flavanol core (flavan-3-ols) structure esterified with gallic acid [ 166 ]. …

Resveratrol and clinical trials: the crossroad from in vitro studies to human evidence.

Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a non-flavonoid polyphenol that may be present in a limited number of foodstuffs such as grapes and red wine. Resveratrol has been reported to exert a plethora of health benefits through many different mechanisms of action. This versatility and presence in the human diet have drawn the worldwide attention of many research groups over the past twenty years, which has resulted in a huge output of in vitro and animal (preclinical) studies. In line with this expectation, many resveratrol- based nutraceuticals are consumed all over the world with qu

Совпадение в полном тексте источника
… These phytochemicals include simple phenolics such as phenolic acids (caffeic acid, gallic acid, etc., which are not polyphenols strictly speaking, because they have only one phenolic group) and large polymers like condensed and hydrolyzable tannins with large molecular weight [ 1 ]. … Non-flavonoids include hydroxycinnamic acids (chlorogenic acid, caffeic acid, etc.), hydrolyzable tannins such as ellagitannins (punicalagin, pedunculagin, etc.) and gallotannins (pentagalloyl glucose, etc.), hydroxybenzoic acids (ellagic acid, gallic acid, etc.) and stilbenes (resveratrol, piceid, viniferins …

Adjuvant Properties of Caffeic Acid in Cancer Treatment.

Caffeic acid (CA) is a polyphenol belonging to the phenylpropanoid family, commonly found in plants and vegetables. It was first identified by Hlasiwetz in 1867 as a breakdown product of caffetannic acid. CA is biosynthesized from the amino acids tyrosine or phenylalanine through specific enzyme-catalyzed reactions. Extensive research since its discovery has revealed various health benefits associated with CA, including its antioxidant, anti-inflammatory, and anticancer properties. These effects are attributed to its ability to modulate several pathways, such as inhibiting NFkB, STAT3, and ERK

Совпадение в полном тексте источника
… Cytotoxic activity of caffeic acid and gallic acid against MCF-7 human breast cancer cells: An in silico and in vitro study. Avicenna J. Phytomed. 2019;9:574–586. doi: 10.22038/AJP.2019.13475. 111. Dziedzic A., Kubina R., Kabała-Dzik A., Tanasiewicz M. …

The Role of Plant-Derived Natural Products as a Regulator of the Tyrosine Kinase Pathway in the Management of Lung Cancer.

One of the most common malignant tumors worldwide is lung cancer, and it is associated with the highest death rate among all cancers. Traditional treatment options for lung cancer include radiation, chemotherapy, targeted therapy, and surgical resection. However, the survival rate is low, and the outlook is still dreadfully dire. The pursuit of a paradigm change in treatment approaches is, therefore, imperative. Tyrosine kinases (TKs), a subclass of protein kinases, regulate vital cellular function by phosphorylating tyrosine residues in proteins. Mutations, overexpression, and autocrine parac

Совпадение в полном тексте источника
… Polyphenolic substances, including equol, kaempferol, resveratrol, ellagic acid, p-Coumaric acid, hesperidin, and gallic acid, were significantly reported to reduce cancer growth in TKIR cell H1993 while preserving TKIS cell H2073. … Caffeic acid and CAPE have been used in combination with other antitumor agents such gallic acid and p-coumaric acid to increase their ability to suppress malignancy. Because of its low bioavailability, nanocarriers have been created to increase its capacity to suppress cancer [ 190 ]. …

Googling the Guggul (Commiphora and Boswellia) for Prevention of Chronic Diseases.

Extensive research during last 2 decades has revealed that most drugs discovered today, although costs billions of dollars for discovery, and yet they are highly ineffective in their clinical response. For instance, the European Medicines Agency has approved 68 anti-cancer drugs, and out of which 39 has reached the market level with no indication of increased survival nor betterment of quality of life. Even when drugs did improve survival rate compared to available treatment strategies, most of these were found to be clinically insignificant. This is a fundamental problem with modern drug disc

Совпадение в полном тексте источника
… Various phenolic compounds such as hydroxybenzoic acid derivatives such as gallic acid, protocatechuic acid, gentisic acid, vanillic acid, p-hydroxy benzoic acid, syringic acid, ellagic acid, and cinnamic acid derivatives which include caffeic acid, chlorogenic acid, ferulic acid, sinapic acid (SA), …

A Recent Review on Cancer Nanomedicine.

Cancer is one of the most prevalent diseases globally and is the second major cause of death in the United States. Despite the continuous efforts to understand tumor mechanisms and various approaches taken for treatment over decades, no significant improvements have been observed in cancer therapy. Lack of tumor specificity, dose-related toxicity, low bioavailability, and lack of stability of chemotherapeutics are major hindrances to cancer treatment. Nanomedicine has drawn the attention of many researchers due to its potential for tumor-specific delivery while minimizing unwanted side effects

Green Tea Catechins for Prostate Cancer Prevention: Present Achievements and Future Challenges.

Green tea catechins (GTCs) are a family of chemically related compounds usually classified as antioxidant molecules. Epidemiological evidences, supported by interventional studies, highlighted a more than promising role for GTCs in human prostate cancer (PCa) chemoprevention. In the last decades, many efforts have been made to gain new insights into the mechanism of action of GTCs. Now it is clear that GTCs' anticancer action can no longer be simplistically limited to their direct antioxidant/pro-oxidant properties. Recent contributions to the advancement of knowledge in this field have shown

Совпадение в полном тексте источника
… The conjugation of hydroxyl groups on the C-ring with gallic acid (D-ring) leads to the formation of EGCG and ECG. …

Protective Effects of Flavonoids Against Mitochondriopathies and Associated Pathologies: Focus on the Predictive Approach and Personalized Prevention.

Multi-factorial mitochondrial damage exhibits a "vicious circle" that leads to a progression of mitochondrial dysfunction and multi-organ adverse effects. Mitochondrial impairments (mitochondriopathies) are associated with severe pathologies including but not restricted to cancers, cardiovascular diseases, and neurodegeneration. However, the type and level of cascading pathologies are highly individual. Consequently, patient stratification, risk assessment, and mitigating measures are instrumental for cost-effective individualized protection. Therefore, the paradigm shift from reactive to pred

Совпадение в полном тексте источника
… Anthocyanidins and pro-anthocyanidins have the lowest bioavailability, while quercetin glucosides, catechin, flavanones, isoflavones, and gallic acid have the highest one [ 102 ]. …