4,135 results match your criteria Vitamin E Toxicity


In Vivo and In Vitro Protective Effects of Rosmarinic Acid against Doxorubicin-Induced Cardiotoxicity.

Nutr Cancer 2021 Jun 4:1-15. Epub 2021 Jun 4.

Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.

Doxorubicin (DOX) is an anticancer medicine that may trigger cardiomyopathy. Rosmarinic acid (RA) has shown antioxidant, anti-inflammatory, and anticancer effects. This investigation assessed the cardioprotective effect of RA on DOX-induced-toxicity in both in vivo and in vitro experiments. Read More

View Article and Full-Text PDF

Therapeutic effects of chitosan-embedded vitamin C, E nanoparticles against cisplatin-induced gametogenic and androgenic toxicity in adult male rats.

Environ Sci Pollut Res Int 2021 May 29. Epub 2021 May 29.

Division of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310051, China.

Cisplatin, an anticancer drug used in treating various types of cancers, can cause reproductive toxicities during chemotherapy. Keeping this in view, the present study was designed to investigate the possible protective effects of normal vitamin C and E and vitamin C and E nanoparticles (embedded in chitosan) against cisplatin-induced reproductive toxicities. Vitamins C, E, and their nanoparticles in this regard proved to be an effective therapy. Read More

View Article and Full-Text PDF

Vitamin E and Provide Protective Effects Against Liver Injury Induced by HgCl: Role of CHOP, GPR87, and mTOR Proteins.

Dose Response 2021 Apr-Jun;19(2):15593258211011360. Epub 2021 Apr 26.

Pharmacology and Toxicology Department, Faculty of Pharmacy, King Saud University, Riyadh, Saudi Arabia.

Background And Objective: Mercury is one of the most harmful heavy metals and its toxicity causes severe multi-organ dysfunction. This study was designed to explore novel molecular pathways involved in the hepatoprotective effect of vitamin E (Vit-E) and (Lac-B) against mercury toxicity.

Method: Acute hepatotoxicity was induced by administration of high dose of mercuric chloride (HgCl) in male rats, Vit-E or/and Lac-B were given along with HgCl for 2 weeks. Read More

View Article and Full-Text PDF

Ethyl acetate fraction of () attenuates lead acetate induced testicular toxicity in male Wistar rats.

J Complement Integr Med 2021 May 12. Epub 2021 May 12.

Department of Pharmacology, Benjamin S. Carson (Snr.) School of Medicine, Babcock University, Ilishan-Remo, Ogun State, Nigeria.

Objectives: The use of in folklore medicine for the management of reproductive disorders has been poorly reported. We sought to investigate the protective potential of the ethyl acetate fraction of stem bark extract (EFSC) on lead acetate-induced (LA) testicular toxicity in male rats.

Methods: Animals during a 28 days treatment received dimethyl sulfoxide (DMSO, 0. Read More

View Article and Full-Text PDF

Efficacy of vitamin E in protection against methotrexate induced placental injury in albino rats.

Biomed Pharmacother 2021 Jul 6;139:111637. Epub 2021 May 6.

Anatomy Department, Faculty of Medicine, Minia University, Egypt. Electronic address:

Methotrexate (MXT) is a chemotherapeutic drug that has been used in a wide range of clinical practices. Unfortunately, the administration of MXT during pregnancy may induce abortion, fetal deformities, and intrauterine growth retardation. Vitamin E is an antioxidant agent that can ameliorate free radical damage. Read More

View Article and Full-Text PDF

Central and peripheral pain intervention by Ophiorrhizarugosa leaves: Potential underlying mechanisms and insight into the role of pain modulators.

J Ethnopharmacol 2021 Aug 5;276:114182. Epub 2021 May 5.

Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy. Electronic address:

Ethnopharmacological Relevance: Ophiorrhiza rugosa var. prostrata is a traditional medicinal plant used by the indigenous and local tribes (Chakma, Marma and Tanchangya) of Bangladesh for the management of chest pain, body ache, and earache. However, the knowledge of anti-nociceptive and anti-inflammatory potentials of this plant is scarce. Read More

View Article and Full-Text PDF

Protective and therapeutic effects of ethanolic extract of (watercress) and vitamin E against bleomycin-induced pulmonary fibrosis in rats.

Res Pharm Sci 2021 Feb 30;16(1):94-102. Epub 2020 Dec 30.

Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, I.R. Iran.

Background And Purpose: Pulmonary fibrosis is a chronic disease of the lungs caused by inflammation, species of reactive oxygen, and immune defects. Antioxidant properties of has been reported in some studies. Therefore, the objective of the current study was to evaluate the effect of ethanolic extract of (EENO) on bleomycin (BLM)-induced lung fibrosis in rats. Read More

View Article and Full-Text PDF
February 2021

Arrabidaea chica Verlot fractions reduce MIA-induced osteoarthritis progression in rat knees.

Inflammopharmacology 2021 Apr 21. Epub 2021 Apr 21.

Biological and Health Sciences Center, Federal University of Maranhão, Av. dos Portugueses 1966, São Luís, MA, 65085-580, Brazil.

This study aims to investigate the activity of n-hexane, ethyl acetate and butanol fractions obtained from Arrabidaea chica Verlot against MIA-induced osteoarthritis (OA). The antinociceptive potentials of each fraction were evaluated through a cyclooxygenase (COX) 1 and 2 inhibition test and an in vivo OA-model. In addition, toxicity assessments in the liver, spleen and kidney, as well as radiographic and histopathological knee analyses, were performed. Read More

View Article and Full-Text PDF

Polyethyleneimine- -Tocopherol Hydrogen Succinate/Hyaluronic Acid-Quercetin (PEI-TOS/HA-QU) Core-Shell Micelles Delivering Paclitaxel for Combinatorial Treatment of MDR Breast Cancer.

J Biomed Nanotechnol 2021 Mar;17(3):382-398

Multidrug resistance (MDR) remains a significant impediment to chemotherapy during cancer therapy. In this study, the amphiphilic biomaterials PEI-TOS and HA-QU were synthesized to self-assemble into PEI-TOS/HA-QU core-shell micelles for the targeted codelivery of paclitaxel (PTX) and quercetin (QU) to alleviate multidrug drug resistance and enhance therapeutic efficacy. The PTX-loaded micelles possessed a uniform particle size (167. Read More

View Article and Full-Text PDF

Ethanol extract of (Gaertn, F) leaves protects against sodium arsenite - induced toxicity in male wistar rats.

Toxicol Rep 2021 2;8:774-784. Epub 2021 Apr 2.

Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.

The inadvertent exposure to arsenic has been associated with diverse diseases such as cancers. is a medicinal plant with antidiabetic and antiproliferative properties. Here, we assessed the ameliorative role of Ethanol Leaf extract of (ELVp) in Sodium Arsenite (SA) - induced toxicity in rats after oral treatment for two weeks as follows: Group 1 (Control, distilled water), Group 2 (Vitamin E, 100 mg/kg), Groups 3 and 4 (ELVp, 100 & 200 mg/kg respectively), Group 5 (SA, 2. Read More

View Article and Full-Text PDF

Ameliorative effects of the aqueous extract of Khaya anthotheca (Welw.) C.DC (Meliaceae) in vanadium induced anxiety, memory loss and pathologies in the brain and ovary of mice.

J Ethnopharmacol 2021 Jul 5;275:114099. Epub 2021 Apr 5.

Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, 20001, Nigeria. Electronic address:

Ethnopharmacological Relevance: Ethnobotanical enquiries have revealed that Khaya anthotheca (Welw.) C.DC (Meliaceae) has anxiolytic properties and is used to alleviate vaginal dryness in postmenopausal women in Cameroon. Read More

View Article and Full-Text PDF

Inhibition of endoplasmic reticulum stress and activation of autophagy-protect intestinal and renal tissues from western diet-induced dysbiosis and abrogate inflammatory response to LPS: role of vitamin E.

J Biol Regul Homeost Agents 2021 Mar-Apr;35(2):457-471

Department of Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt.

Diet pattern is an emerging risk factor for renal disease. The mechanism by which high-fat high fructose (western) diet mediates renal injury is not yet fully understood. The objective of the present study was to investigate the relationship between endoplasmic reticulum (ER) stress and autophagy in the development of renal impairment and aggravation of the inflammatory response. Read More

View Article and Full-Text PDF

Mechanisms underlying protective effects of vitamin E against mycotoxin deoxynivalenol-induced oxidative stress and its related cytotoxicity in primary human brain endothelial cells.

Environ Toxicol 2021 Jul 5;36(7):1375-1388. Epub 2021 Apr 5.

Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Yanpu Township, Pingtung County, Taiwan.

Fusarium mycotoxins are one of the largest families of mycotoxins. Among these mycotoxins, deoxynivalenol is the most widespread pollutant of grains. However, the mechanism underlying the effect of deoxynivalenol on cytotoxicity in human brain endothelial cells was still unclear. Read More

View Article and Full-Text PDF

Antioxidants Improve Oxaliplatin-Induced Peripheral Neuropathy in Tumor-Bearing Mice Model: Role of Spinal Cord Oxidative Stress and Inflammation.

J Pain 2021 Mar 24. Epub 2021 Mar 24.

Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil. Electronic address:

Chemotherapy-Induced Peripheral Neuropathy (CIPN) is a common, difficult-to-treat, and dose-limiting side effect associated with Oxaliplatin (OXA) treatment. In this study, we evaluated the effect of three antioxidants - namely N-acetylcysteine, α-lipoic acid and vitamin E - upon nociceptive parameters and antitumor efficacy of OXA in a tumor-bearing Swiss mice model. Oral treatment with antioxidants inhibited both mechanical and cold allodynia when concomitantly administrated with OXA (preventive protocol), as well as in animals with previously established CIPN (therapeutic protocol). Read More

View Article and Full-Text PDF

Toxicology of flavoring- and cannabis-containing e-liquids used in electronic delivery systems.

Pharmacol Ther 2021 Aug 18;224:107838. Epub 2021 Mar 18.

Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA.

Electronic cigarettes (e-cigarettes) were introduced in the United States in 2007 and by 2014 they were the most popular tobacco product amongst youth and had overtaken use of regular tobacco cigarettes. E-cigarettes are used to aerosolize a liquid (e-liquid) that the user inhales. Flavorings in e-liquids is a primary reason for youth to initiate use of e-cigarettes. Read More

View Article and Full-Text PDF

Lipid peroxidation products as a mediator of toxicity and adaptive response - The regulatory role of selenoprotein and vitamin E.

Authors:
Yoshiro Saito

Arch Biochem Biophys 2021 05 17;703:108840. Epub 2021 Mar 17.

Laboratory of Molecular Biology and Metabolism, Graduate School of Pharmaceutical Sciences, Tohoku University, C301, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8578, Japan. Electronic address:

Lipid peroxidation and its products have been investigated extensively and their biological importance, particularly in relation to physiological and pathophysiological conditions, has received considerable attention. Lipids are oxidized by three distinct mechanisms, i.e. Read More

View Article and Full-Text PDF

Effect of thiamazole on kainic acid-induced seizures in mice.

Saudi J Biol Sci 2021 Mar 28;28(3):1840-1846. Epub 2020 Dec 28.

Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

Kainic acid (KA) induced epileptic seizures in mice is a commonly used experimental model of epilepsy. Previous studies have suggested the roles of various neurotransmitters and oxidative stress in KA-induced seizures. An important role of hypothyroidism has also been suggested in epilepsy. Read More

View Article and Full-Text PDF

Encapsulating Halofuginone Hydrobromide in TPGS Polymeric Micelles Enhances Efficacy Against Triple-Negative Breast Cancer Cells.

Int J Nanomedicine 2021 26;16:1587-1600. Epub 2021 Feb 26.

Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.

Background: Halofuginone hydrobromide (HF) is a synthetic analogue of the naturally occurring quinazolinone alkaloid febrifugine, which has potential therapeutic effects against breast cancer, however, its poor water solubility greatly limits its pharmaceutical application. D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) is a water-soluble derivative of vitamin E, which can self-assemble to form polymeric micelles (PMs) for encapsulating insoluble anti-tumor drugs, thereby effectively enhancing their anti-cancer effects.

Methods: HF-loaded TPGS PMs (HTPMs) were manufactured using a thin-film hydration technique, followed by a series of characterizations, including the hydrodynamic diameter (HD), zeta potential (ZP), stability, drug loading (DL), encapsulation efficiency (EE), and in vitro drug release. Read More

View Article and Full-Text PDF

Xylene delays the development of Leydig cells in pubertal rats by inducing reactive oxidative species.

Toxicology 2021 04 1;454:152740. Epub 2021 Mar 1.

Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China. Electronic address:

Xylene is a cyclic hydrocarbon, which is commonly used as a solvent in dyes, paints, polishes, and industrial solutions. It is a potential environmental pollutant. Here, we report the effect of xylene exposure on Leydig cell development in male rats during puberty. Read More

View Article and Full-Text PDF

Treatment and protective effects of metalloproteinase inhibitors alone and in combination with N-Acetyl cysteine plus vitamin E in rats exposed to aflatoxin B.

Toxicon 2021 Apr 20;194:79-85. Epub 2021 Feb 20.

Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Selcuk, 42031, Konya, Turkey.

This study was conducted to investigate the effects of matrix metalloproteinase (MMP) inhibitors dexamethasone and minocycline administrations -both single and in combination with N-acetylcysteine (NAC) and vitamin E-on the tissue distribution and lethal dose (LD) of aflatoxin (AF)B in rats. We performed this study on male Wistar rats (8-10 weeks) in two phases. In the first phase, rats were administered dexamethasone (5 and 20 mg/kg) and minocycline (45 and 90 mg/kg), both as single treatments and in combination with NAC (200 mg/kg) and vitamin E (600 mg/kg); these treatments followed AFB administration (2 mg/kg). Read More

View Article and Full-Text PDF

Next-generation contact lenses: Towards bioresponsive drug delivery and smart technologies in ocular therapeutics.

Eur J Pharm Biopharm 2021 Apr 16;161:80-99. Epub 2021 Feb 16.

Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhavnagar, Manipal 576104, Karnataka, India. Electronic address:

In contrast to the conventional ocular formulations, contact lenses are well known for their diverse applications ranging from bio-sensing, prevention of myopia, cosmetics, and drug delivery. With a tremendous change in the lifestyle, contact lenses for therapeutic purposes have increased several fold. Contact lenses as medicated lenses suffer from several disadvantages, and to overcome the same numerous approaches have been explored. Read More

View Article and Full-Text PDF

Vitamin E and 5-amino salicylic acid ameliorates acrylamide-induced peripheral neuropathy by inhibiting caspase-3 and inducible nitric oxide synthase immunoexpression.

J Chem Neuroanat 2021 Apr 12;113:101935. Epub 2021 Feb 12.

Department of Pharmacology and Toxicology, College of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Pharmacology and Toxicology, College of Pharmacy, Tanta University, Tanta 31527, Egypt. Electronic address:

Acrylamide is a fundamental cause of accidental toxicity in humans. This study aimed to investigate the neuroprotective effect of vitamin E (Vit. E), 5-amino salicylic acid (5-ASA), and their combination against acrylamide-induced sciatic nerve toxicity. Read More

View Article and Full-Text PDF

Stable W/O/W multiple nanoemulsion encapsulating natural tocotrienols and caffeic acid with cisplatin synergistically treated cancer cell lines (A549 and HEP G2) and reduced toxicity on normal cell line (HEK 293).

Mater Sci Eng C Mater Biol Appl 2021 Feb 22;121:111808. Epub 2020 Dec 22.

Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia; Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam. Electronic address:

This work aimed to evaluate the effects of encapsulated tocotrienols (TRF) and caffeic acid (CA) in water-in-oil-in-water (W/O/W) multiple nanoemulsion with cisplatin towards cancer cells. This work is important considering the limited efficacy of cisplatin due to tumour resistance, as well as its severe side effects. A549 and HEP G2 cancer cell lines were utilised for evaluating the efficacy of the encapsulated W/O/W while HEK 293 normal cell line was used for evaluating the toxicity. Read More

View Article and Full-Text PDF
February 2021

A Priori Activation of Apoptosis Pathways of Tumor (AAAPT) technology: Development of targeted apoptosis initiators for cancer treatment.

PLoS One 2021 8;16(2):e0225869. Epub 2021 Feb 8.

Department Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America.

Cancer cells develop tactics to circumvent the interventions by desensitizing themselves to interventions. Amongst many, the principle routes of desensitization include a) activation of survival pathways (e.g. Read More

View Article and Full-Text PDF
February 2021

Compiling Evidence for EVALI: A Scoping Review of In Vivo Pulmonary Effects After Inhaling Vitamin E or Vitamin E Acetate.

J Med Toxicol 2021 07 2;17(3):278-288. Epub 2021 Feb 2.

The Medical College of Wisconsin Libraries, Milwaukee, USA.

Background: Vitamin E acetate (VEA) has come under significant scrutiny due to its association with E-cigarette or vaping product use-associated lung injury (EVALI). Various theoretical mechanisms have been proposed for toxicity, including tocopherol (vitamin E)-mediated surfactant damage, recruitment of inflammation, and pyrolysis of acetate to the pulmonary irritant ketene.

Objective: Characterize studies in mammals evaluating inhaled VEA, vitamin E analogues, or pyrolyzed acetate that describe subsequent effects on the lung. Read More

View Article and Full-Text PDF

Evaluation of dietary selenium, vitamin C and E as the multi-antioxidants on the methylmercury intoxicated mice based on mercury bioaccumulation, antioxidant enzyme activity, lipid peroxidation and mitochondrial oxidative stress.

Chemosphere 2021 Jun 18;273:129673. Epub 2021 Jan 18.

Feeds & Foods Nutrition Research Center (FFNRC), Pukyong National University, Busan, 48574, Republic of Korea; FAO-World Fisheries University Pilot Program, Busan, 48574, Republic of Korea. Electronic address:

Mercury (Hg) in high exposures can be a potent life threatening heavy metal that bioaccumulate in aquatic food-chain mainly as organic methylmercury (MeHg). In this regard, fish and seafood consumptions could be the primary sources of MeHg exposure for human and fish-eating animals. The objective of the present study was to elucidate the effects of dietary supplementation of some antioxidants on induced mercury toxicity in mice model. Read More

View Article and Full-Text PDF

Antioxidants protect against gingival overgrowth induced by cyclosporine A.

J Periodontal Res 2021 Apr 14;56(2):397-407. Epub 2021 Jan 14.

Department of Dentistry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Xindian, Taiwan.

Objective: We investigated the importance of reactive oxygen species (ROS) on developing gingival overgrowth (GO) and then introduced the antioxidant strategy to prevent, or even reduce GO.

Background: Gingival overgrowth is a common side effect of the patients receiving cyclosporine A (CsA), an immune suppressant. Although it has been broadly investigated, the exact pathogenesis of the induced GO is still uncertain. Read More

View Article and Full-Text PDF

A Safe GDNF and GDNF/BDNF Controlled Delivery System Improves Migration in Human Retinal Pigment Epithelial Cells and Survival in Retinal Ganglion Cells: Potential Usefulness in Degenerative Retinal Pathologies.

Pharmaceuticals (Basel) 2021 Jan 11;14(1). Epub 2021 Jan 11.

Pharmaceutical Innovation in Ophthalmology (InnOftal), Research Group (UCM 920415), Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, Plaza de Ramón y Cajal, s/n, 28040 Madrid, Spain.

We assessed the sustained delivery effect of poly (lactic-co-glycolic) acid (PLGA)/vitamin E (VitE) microspheres (MSs) loaded with glial cell-derived neurotrophic factor (GDNF) alone (GDNF-MSs) or combined with brain-derived neurotrophic factor (BDNF; GDNF/BDNF-MSs) on migration of the human adult retinal pigment epithelial cell-line-19 (ARPE-19) cells, primate choroidal endothelial (RF/6A) cells, and the survival of isolated mouse retinal ganglion cells (RGCs). The morphology of the MSs, particle size, and encapsulation efficiencies of the active substances were evaluated. In vitro release, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell viability, terminal deoxynucleotidyl transferase (TdT) deoxyuridine dUTP nick-end labelling (TUNEL) apoptosis, functional wound healing migration (ARPE-19; migration), and (RF/6A; angiogenesis) assays were conducted. Read More

View Article and Full-Text PDF
January 2021

Impact of titanium dioxide nanoparticles on intestinal community in 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced acute colitis mice and the intervention effect of vitamin E.

Nanoscale 2021 Jan;13(3):1842-1862

Department of Occupational and Environmental Health Sciences School of Public Health Peking University, Beijing 100191, China.

Titanium dioxide nanoparticles (TiO2-NPs) are widely applied as additives in foods due to their excellent whitening and brightening capability. Although the toxicity and antibacterial activity of TiO2-NPs have been extensively studied, their impact on the gut microbiota in vivo still remains unclear, especially in animals with gastrointestinal disorders. In the present study, healthy mice and TNBS-induced colitis mice were administered with TiO2-NPs (38. Read More

View Article and Full-Text PDF
January 2021

Development of a nanotechnological-based hydrogel containing a novel benzofuroazepine compound in association with vitamin E: An in vitro biological safety and photoprotective hydrogel.

Colloids Surf B Biointerfaces 2021 Mar 29;199:111555. Epub 2020 Dec 29.

Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil. Electronic address:

This study aimed to evaluate the potential DNA photoprotection of nano-based hydrogels containing a novel benzofuroazepine molecule. Photoprotective property of three benzofuroazepine derivative compounds was assessed by determining a UV light absorptive profile. Nanocapsule suspensions (Eudragit® RS 100 as polymeric wall and medium-chain triglyceride or vitamin E as oil core) containing the benzofuroazepine compound that had the best UV spectral absorption were developed and physicochemically characterized. Read More

View Article and Full-Text PDF