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Roy R, Liya IJ, Roy J, Basher MA. Acute and subchronic toxicity profile of methanol extract of leaves of Fimbristylis miliacea (L.) Vahl. Toxicol Rep 2023; 10:301-307. [PMID: 36891508 PMCID: PMC9986635 DOI: 10.1016/j.toxrep.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
Ethnopharmacological relevance Fimbristylis miliacea (L.) Vahl (Cyperaceae) is a grass like herb habitually breeds as weed in paddy fields and mostly disseminated in tropical or sub-tropical countries of south and south-east Asia, northern Australia, and west Africa. The plant has been traditionally used to treat fever as a form of poultice. However, no scientific study regarding its toxicity profile has been testified. Aim of the study The study has been carried out to determine the potential toxicity of the methanol extract from leaves of the Fimbristylis miliacea, employing the technique of acute and subchronic oral administration in mice. Materials and methods In the acute toxicity study according to OECD guideline 425, oral administration of FM methanol extract at single doses of 2000 and 5000 mg/kg in both sexes of Swiss albino mice was performed. Toxic symptoms, abnormal behavior, changes in body weight, and mortality were observed for 14 consecutive days. In subchronic toxicity study according to OECD guideline 407, plant extract was administered orally at doses of 100, 500, 1000, and 2000 mg/kg daily for 28 days. The general toxic symptoms, abnormal behavior, changes in body weight were observed daily. Biochemical analysis of serum, and histopathological examination of liver were performed at the end of the study. Results No mortality, abnormal behavior and urination, changes in sleep, food intake, adverse effect, and non-linearity in body weight have been recorded during acute toxicity study at the doses of 2000 and 5000 mg/kg. Also, in subchronic toxicity study, FM extract produced no mortality or any kind of adverse effects in regards of general behavior, body weight, urination, sleeping routine, and food intake. In case of analysis of thirteen different biochemical parameters, concentrations of aspartate transaminase (AST) and glucose were altered significantly in male and female mice in both acute and subchronic study. Total cholesterol and triglycerides at 5000 mg/kg.bw were changed in male mice in acute toxicity study. On the other hand, female mice had altered triglycerides in subchronic test. All other critical parameters were found unaffected. In subchronic test, histopathological examination of liver demonstrated cellular necrosis at 2000 mg/kg.bw in both male and female mice while minor necrosis was observed at 1000 mg/kg.bw. Thus, the no observed adverse effect level (NOAEL) can be assumed around 1000 mg/kg.bw. Conclusion The present study suggests that treatment with FM extract does not reveal significant toxicity.
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Key Words
- ALP, alkaline phosphatase
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Acute toxicity
- Alb, albumin
- BIL, bilirubin
- CR, creatinine
- FM, Fimbristylis miliacea
- Fimbristylis miliacea (L.) Vahl
- Glu, glucose
- HDL, high-density lipoprotein
- LD, Lethal Dose
- LDL, low-density lipoprotein
- Subchronic toxicity
- TC, total cholesterol
- TG, triglyceride
- TP, total protein
- Toxicological profile
- UA, uric acid
- b.w, Body weight
- h, hour
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Affiliation(s)
- Roni Roy
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - Israt Jahan Liya
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - Jony Roy
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - Mohammad Anwarul Basher
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
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Haque E, Bari MS, Khandokar L, Anjum J, Jantan I, Seidel V, Haque MA. An updated and comprehensive review on the ethnomedicinal uses, phytochemistry, pharmacological activity and toxicological profile of Tinospora crispa (L.) Hook. f. & Thomson. Phytochem Rev 2022; 22:211-273. [PMID: 36345416 PMCID: PMC9630822 DOI: 10.1007/s11101-022-09843-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Tinospora crispa (L.) Hook. f. & Thomson (Menispermaceae) is a plant indigenous to Africa and South-East Asia. It is widely used in ethnomedicine to alleviate various diseases including hypertension, diabetes, rheumatism, jaundice, inflammation, fever, fractures, scabies, and urinary disorders. A total of 167 phytoconstituents, belonging to 12 different chemical categories, including alkaloids, flavonoids, terpenoids, and phenolic compounds have thus far been isolated from various parts of T. crispa. Numerous in vitro and in vivo investigations have already established the antidiabetic, anticancer, antiparasitic, antimicrobial, immunomodulatory, hepatoprotective, analgesic, antipyretic, antihyperuricemic, and pesticidal activity of this plant, as well as its effects on the cardiac and the central nervous system. Most pharmacological investigations to date have been carried out on plant extracts and fractions. The exact identity of the phytoconstituents responsible for the observed biological effects and their mode of action at the molecular level are yet to be ascertained. Toxicological studies have demonstrated that T. crispa is relatively safe, although dose-dependent hepatotoxicity is a concern at high doses. This review presents a comprehensive update and analysis on studies related to the ethnomedicinal uses, phytochemistry, pharmacological activity and toxicological profile of T. crispa. It provides some critical insights into the current scientific knowledge on this plant and its future potential in pharmaceutical research.
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Affiliation(s)
- Ehfazul Haque
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455 USA
| | - Md. Sazzadul Bari
- Department of Chemistry, Purdue University, West Lafayette, IN 47907 USA
| | - Labony Khandokar
- Department of Pharmacy, East West University, Dhaka, 1212 Bangladesh
| | - Juhaer Anjum
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka, 1000 Bangladesh
| | - Ibrahim Jantan
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor Malaysia
| | - Veronique Seidel
- Natural Products Research Laboratory, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Md. Areeful Haque
- Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, 4318 Bangladesh
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Khandokar L, Bari MS, Seidel V, Haque MA. Ethnomedicinal uses, phytochemistry, pharmacological activities and toxicological profile of Glycosmis pentaphylla (Retz.) DC.: A review. J Ethnopharmacol 2021; 278:114313. [PMID: 34116186 DOI: 10.1016/j.jep.2021.114313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/12/2021] [Accepted: 06/04/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Glycosmis pentaphylla (Retz.) DC. is a perennial shrub indigenous to the tropical and subtropical regions of India, China, Sri Lanka, Myanmar, Bangladesh, Indonesia, Malaysia, Thailand, Vietnam, Philippine, Java, Sumatra, Borneo and Australia. The plant is used extensively within these regions as a traditional medicine for the treatment of a variety of ailments including cough, fever, chest pain, anemia, jaundice, liver disorders, inflammation, bronchitis, rheumatism, urinary tract infections, pain, bone fractures, toothache, gonorrhea, diabetes, cancer and other chronic diseases. AIM OF THE REVIEW This review aims to present up-to-date information regarding the taxonomy, botany, distribution, ethnomedicinal uses, phytochemistry, pharmacology and toxicological profile of G. pentaphylla. The presented information was analyzed critically to understand current work undertaken on this species and explore possible future prospects for this plant in pharmaceutical research. MATERIALS & METHODS Bibliographic databases, including Google Scholar, PubMed, Web of Science, ScienceDirect, SpringerLink, Wiley Online Library, Semantic Scholar, Europe PMC, Scopus, and MEDLINE, were explored thoroughly for the collection of relevant information. The structures of phytoconstituents were confirmed with PubChem and SciFinder databases. Taxonomical information on the plant was presented in accordance with The Plant List (version 1.1). RESULTS Extensive phytochemical investigations into different parts of G. pentaphylla have revealed the presence of at least 354 secondary metabolites belonging to structurally diverse classes including alkaloids, amides, phenolic compounds, flavonoids, glycosides, aromatic compounds, steroids, terpenoids, and fatty derivatives. A large number of in vitro and in vivo experiments have demonstrated that G. pentaphylla had anticancer, antimutagenic, antibacterial, antifungal, anthelmintic, mosquitocidal, antidiabetic, antihyperlipidemic, anti-oxidant, anti-inflammatory, analgesic, antipyretic, anti-arsenicosis, and wound healing properties. Toxicological studies have established the absence of any significant adverse reactions and showed that the plant had a moderate safety profile. CONCLUSIONS G. pentaphylla can be suggested as a source of inspiration for the development of novel drugs, especially anticancer, antimicrobial, anthelmintic, and mosquitocidal agents. Moreover, bioassay-guided investigations into its diverse classes of secondary metabolites, especially the large pool of nitrogen-containing alkaloids and amides, promises the development of novel drug candidates. Future pharmacological studies into this species are also warranted as many of its traditional uses are yet to be validated scientifically.
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Affiliation(s)
- Labony Khandokar
- Department of Pharmacy, East West University, Dhaka, 1212, Bangladesh
| | - Md Sazzadul Bari
- Department of Pharmacy, State University of Bangladesh, Dhaka, 1205, Bangladesh
| | - Veronique Seidel
- Natural Products Research Laboratory, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom.
| | - Md Areeful Haque
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, 4318, Bangladesh; Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia.
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Rodrigues S, Cunha L, Kollan J, Neumann PR, Rosa da Costa AM, Dailey LA, Grenha A. Cytocompatibility and cellular interactions of chondroitin sulfate microparticles designed for inhaled tuberculosis treatment. Eur J Pharm Biopharm 2021; 163:171-8. [PMID: 33838263 DOI: 10.1016/j.ejpb.2021.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/18/2021] [Accepted: 04/01/2021] [Indexed: 11/21/2022]
Abstract
Tuberculosis remains a leading cause of death, therapeutic failure being mainly due to non-compliance with prolonged treatments, often associated with severe side-effects. New therapeutic strategies are demanded and, considering that the lung is the primary site of infection, direct lung delivery of antibiotics is possibly an effective approach. Therapeutic success in this context depends on suitable carriers that reach the alveoli where Mycobacterium hosts (macrophages) reside, as well as on their ability to promote macrophage capture and intracellular accumulation of drugs. In this work, we propose inhalable polymeric microparticles produced from chondroitin sulfate, a polymer composed by moieties recognized by macrophage receptors. Spray-drying of chondroitin sulfate in combination with two first-line antitubercular drugs (isoniazid and rifabutin) yielded respirable microparticles that evidenced no cytotoxic effects on lung epithelial cells (A549) and macrophages (dTHP1 and J744A.1). The microparticles exhibited tendency for macrophage capture in a dose-dependent manner, which was validated through imaging. High content image analysis revealed that rifabutin induced a dose-dependent increase in phospholipid content of macrophages, which could be prevented by formulation in chondroitin sulfate microparticles. This work provides indications on the potential of chondroitin sulfate carriers to interact with macrophages, thus providing a platform for drug delivery in the context of macrophage intracellular diseases, namely tuberculosis.
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Sizochenko N, Mikolajczyk A, Syzochenko M, Puzyn T, Leszczynski J. Zeta potentials (ζ) of metal oxide nanoparticles: A meta-analysis of experimental data and a predictive neural networks modeling. NanoImpact 2021; 22:100317. [PMID: 35559974 DOI: 10.1016/j.impact.2021.100317] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 06/15/2023]
Abstract
Zeta potential is usually measured to estimate the surface charge and the stability of nanomaterials, as changes in these characteristics directly influence the biological activity of a given nanoparticle. Nowadays, theoretical methods are commonly used for a pre-screening safety assessments of nanomaterials. At the same time, the consistency of data on zeta potential measurements in the context of environmental impact is an important challenge. The inconsistency of data measurements leads to inaccuracies in predictive modeling. In this article, we report a new curated dataset of zeta potentials measured for 208 silica- and metal oxide nanoparticles in different media. We discuss the data curation framework for zeta potentials designed to assess the quality and usefulness of the literature data for further computational modeling. We also provide an analysis of specific trends for the datapoints harvested from different literature sources. In addition to that, we present for the first time a structure-property relationship model for nanoparticles (nano-SPR) that predicts values of zeta potential values measured in different environmental conditions (i.e., biological media and pH).
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Affiliation(s)
- Natalia Sizochenko
- Department of Informatics, Postdoctoral Institute for Computational Studies, Enfield, NH, USA; School of Informatics and Engineering, Blanchardstown Campus, Technological University Dublin, Blanchardstown, Ireland.
| | - Alicja Mikolajczyk
- Department of Informatics, Postdoctoral Institute for Computational Studies, Enfield, NH, USA; Laboratory of Environmental Chemometrics, Faculty of Chemistry, University of Gdansk, Gdansk, Poland; QSAR Lab Ltd, Gdansk, Poland
| | - Michael Syzochenko
- Department of Informatics, Postdoctoral Institute for Computational Studies, Enfield, NH, USA
| | - Tomasz Puzyn
- Laboratory of Environmental Chemometrics, Faculty of Chemistry, University of Gdansk, Gdansk, Poland; QSAR Lab Ltd, Gdansk, Poland
| | - Jerzy Leszczynski
- Interdisciplinary Center for Nanotoxicity, Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, USA
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Lagarto A, Bueno V, Pérez MR, Rodríguez CC, Guevara I, Valdés O, Bellma A, Gabilondo T, Padrón AS. Safety evaluation of the venom from scorpion Rhopalurus junceus: Assessment of oral short term, subchronic toxicity and teratogenic effect. Toxicon 2020; 176:59-66. [PMID: 32057833 DOI: 10.1016/j.toxicon.2020.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/28/2020] [Accepted: 02/03/2020] [Indexed: 11/27/2022]
Abstract
Rhopalurus junceus is the most common scorpion in Cuba and the venom is often used as a natural product for anti-cancer therapy. Despite this, no study has been published concerning its toxicological profile. The aim of the study was characterizing the short-term, subchronic toxicity and the teratogenic potential of Rhopalurus junceus scorpion venom by oral route in mice. Short-term oral toxicity was test in both sexes NMRI mice that received 100 mg/kg/day of scorpion venom extract for 28 days. For the subchronic study, mice were administered with three doses (0.1, 10, and 100 mg/kg) by oral route for 90 days. Teratogenic potential was tested in pregnant mice administered from day 6-15 post conception. Significant differences were observed in body weight and food intake of animal treated for short-term and subchronic assays. Variations in serum urea and cholesterol were observed after 90 days oral treatment. Spontaneous findings not related to the treatment were reveal in histology evaluation. Exposure in pregnant mice did not produce maternal toxicity. Signs of embryo-fetal toxicity were not observed. The current study provides evidence that exposure to low or moderate dose of Rhopalurus junceus scorpion venom by oral route did not affect health of animals and has low impact on reproductive physiology.
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Affiliation(s)
- Alicia Lagarto
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba.
| | - Viviana Bueno
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba.
| | - María R Pérez
- Laboratories of Biopharmaceuticals and Chemistries Productions, LABIOFAM, Ave Independencia Km 16 1/2 Mulgoba, Boyeros, La Habana, Cuba
| | - Caridad C Rodríguez
- Laboratories of Biopharmaceuticals and Chemistries Productions, LABIOFAM, Ave Independencia Km 16 1/2 Mulgoba, Boyeros, La Habana, Cuba
| | - Irania Guevara
- Laboratories of Biopharmaceuticals and Chemistries Productions, LABIOFAM, Ave Independencia Km 16 1/2 Mulgoba, Boyeros, La Habana, Cuba
| | - Odalys Valdés
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba
| | - Addis Bellma
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba
| | - Tatiana Gabilondo
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba
| | - Alejandro S Padrón
- Drug Research and Development Center, CIDEM, Ave 26 N 1605 entre Ave Boyeros y Calzada de Puentes Grandes, La Habana, Cuba
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Awodele O, Badru WA, Busari AA, Kale OE, Ajayi TB, Udeh RO, Emeka PM. Toxicological evaluation of therapeutic and supra-therapeutic doses of Cellgevity® on reproductive function and biochemical indices in Wistar rats. BMC Pharmacol Toxicol 2018; 19:68. [PMID: 30359320 PMCID: PMC6202817 DOI: 10.1186/s40360-018-0253-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 10/01/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The misconception about dietary supplements being safe has led many into the in-patient wards. Cellgevity® (CGV) is a Max International premiere antioxidant supplement formula used by a large population. This study evaluated the effects of therapeutic and supra-therapeutic doses of CGV on reproductive function and biochemical indices in Wistar rats. METHODS Seventy-two Wistar rats weighing 130 ± 15.8 g were grouped into two categories (male or female) of six rats per group. Control group received distilled water (10 ml/kg). Others received therapeutic (14.3 mg/kg or 28.6 mg/kg) and supra-therapeutic CGV doses (1000, 2000 or 3000 mg/kg) body weight per oral respectively. RESULTS After 60 days, supra-therapeutic doses of CGV reduced sperm motility (p < 0.05) by 31.8%, 31.3% and 34.5% respectively and increased (p < 0.05) abnormality in sperms by 200%, 241% and 141.3% respectively. CGV altered male (luteinizing, follicle stimulating hormones and testosterone) and female reproductive hormones (luteinizing, follicle stimulating hormones estrogen and progesterone) respectively. Therapeutic doses of CGV elevated reduced glutathione, superoxide dismutase, catalase and glutathione S-transferase, although, this was exceeded by supra-therapeutic doses and more in females than male rats. Supra-therapeutic dose (3000 mg/kg CGV) decreased body weight in both male and female rats by 50% (F(1.5, 30) = 1.2, p = 0.041) and 62.7% (F(2.1, 30) = 0.38, p = 0.038) respectively in treated rats. Supratherapeutic (3000 mg/kg) dose of CGV increased (p < 0.05) creatinine level by 99.1% while serum total protein was reduced (p < 0.05) by 60.1% (2000 mg/kg) and 57.2% (3000 mg/kg) respectively in male animals. In Female rats, supra-therapeutic doses of CGV elevated creatinine levels by 72.2% (1000 mg/kg), 60.2% (2000 mg/kg) and 124.8% (3000 mg/kg) respectively and 3000 mg/kg produces elevated serum low density lipoprotein by 34.6% in treated rats. Serum cholesterol, triglycerides, albumin, alkaline phosphatase were unaltered by CGV dosing. Histology shows seminiferous tubules with reduced spermatogenic cells. Also, female rat kidney revealed acute tubular necrosis at highest dose used in this study. CONCLUSION Overall, these data suggest that pro-oxidant potential of the supra-therapeutic CGV doses is evident. Hence, it is necessary that its administration be done with caution using appropriate doses.
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Affiliation(s)
- O Awodele
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria.
| | - W A Badru
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria
| | - A A Busari
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria
| | - O E Kale
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria
| | - T B Ajayi
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria
| | - R O Udeh
- Toxicology Unit, Department of Pharmacology, Therapeutics and Toxicology, College of Medicine, University of Lagos, PMB 12003, Idi-Araba Campus, Lagos, Nigeria
| | - P M Emeka
- Department of Pharmaceutical Sciences, College of Pharmacy, King Faisal University Hofuf, Hofuf, Kingdom of Saudi Arabia
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Filippini T, Michalke B, Wise LA, Malagoli C, Malavolti M, Vescovi L, Salvia C, Bargellini A, Sieri S, Krogh V, Ferrante M, Vinceti M. Diet composition and serum levels of selenium species: A cross-sectional study. Food Chem Toxicol 2018; 115:482-90. [PMID: 29621579 DOI: 10.1016/j.fct.2018.03.048] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/14/2018] [Accepted: 03/30/2018] [Indexed: 12/13/2022]
Abstract
Selenium is a trace element of both nutritional and toxicological interest, depending on its dose and chemical form. Diet is the primary source of exposure for most individuals. We sought to investigate the influence of food intake on serum levels of selenium species. Among fifty subjects randomly selected from a Northern Italian population, we assessed dietary habits using a validated semi-quantitative food frequency questionnaire. We also measured circulating levels of selenium species in serum using high pressure liquid chromatography associated with inductively-coupled plasma dynamic reaction cell mass spectrometer. Circulating levels of inorganic selenium, the most toxic selenium species, were positively associated with intake of fish, legumes and dry fruits, and inversely associated with intake of dairy products and mushrooms. Concerning the organic selenium species, selenoproteinP-bound selenium was inversely associated with intake of fish, fresh fruits, vegetables, and legumes, while selenocysteine-bound selenium positively associated with intake of fresh fruit, potato, legume and mushroom. In the present study, intakes of different foods were correlated with different types of selenium species. These results have important public health implications when assessing the nutritional and toxicological potential of diet composition with reference to selenium exposure.
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Videira RA, Andrade PB, Monteiro LS, Valentão P, Ferreira PMT, Pereira DM. Toxicity and structure-activity relationship (SAR) of α,β-dehydroamino acids against human cancer cell lines. Toxicol In Vitro 2017; 47:26-37. [PMID: 29107685 DOI: 10.1016/j.tiv.2017.10.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 10/06/2017] [Accepted: 10/26/2017] [Indexed: 12/18/2022]
Abstract
A library of N-protected dehydroamino acids, namely dehydroalanine, dehydroaminobutyric acid and dehydrophenylalanine derivatives, was screened in three human cancer cell lines [(lung (A549), gastric (AGS) and neuroblastoma (SH-SY5Y)] in order to characterize their toxicological profile and identify new molecules with potential anticancer activity. Results showed N-protected dehydrophenylalanine and dehydroaminobutyric acid derivatives have no or low toxicity for all tested cell lines. The N-protected dehydroalanines exhibit significant toxic effects and the AGS and SH-SY5Y cells were significantly more vulnerable than A549 cells. Four α,β-dehydroalanine derivatives, with IC50<62.5μM, were selected to investigate the pathways by which these compounds promote cell death. All compounds, at their IC50 concentrations, were able to induce apoptosis in both AGS and SH-SY5Y cell lines. In both cell lines, loss of mitochondrial membrane potential (ΔΨm) was found and caspase activity was increased, namely endoplasmic reticulum-resident caspase-4 in AGS cells and caspase-3/7 in SH-SY5Y cells. When evaluated in a non-cancer cell line, the molecules displayed no to low toxicity, thus suggesting some degree of selectivity for cancer cells. The results indicate that α,β-dehydroalanine derivatives can be considered a future resource of compounds able to work as anticancer drugs.
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Affiliation(s)
- Romeu A Videira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Luís S Monteiro
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Paula M T Ferreira
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
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El Kabbaoui M, Chda A, El-Akhal J, Azdad O, Mejrhit N, Aarab L, Bencheikh R, Tazi A. Acute and sub-chronic toxicity studies of the aqueous extract from leaves of Cistus ladaniferus L. in mice and rats. J Ethnopharmacol 2017; 209:147-156. [PMID: 28750941 DOI: 10.1016/j.jep.2017.07.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/24/2017] [Accepted: 07/17/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cistus ladaniferus L. (C.ladaniferus) (Cistaceae) is an aromatic shrub native to the Mediterranean region. The leaves are widely used in traditional medicine throughout Morocco for the treatment of various diseases including, diabetes, diarrhea, inflammation, and skin ailments. However, to the best of our knowledge, no systematic study concerning its toxicity profile has been reported. AIM OF THE STUDY The study carried out evaluates the potential toxicity of the aqueous extract from leaves of the C.ladaniferus (CL extract) shrub, through the method of acute and sub-chronic oral administration in mice and rats. MATERIALS AND METHODS During the acute toxicity study, male and female mice were orally administrated with CL aqueous extract at single doses of 500, 1000, 2000, 3000 and 5000mg/kg (n = 5/group/sex). Abnormal behavior, toxic symptoms, weight, and death were observed for 14 consecutive days to assess the acute toxicity. During the sub-chronic toxicity study, the aqueous extract was administered orally at doses of 500, 700 and 1000mg/kg (n = 6/group) daily to Wistar rats of both sexes for 90 days. The general behavior of the rats was observed daily, and their body weight was recorded weekly. A urinalysis, biochemical analysis, hematological analysis, macroscopic examination and histopathological examination of several organs were conducted at the end of the treatment period. RESULTS During the acute toxicity test, when mice were administered doses of 3000 and 5000mg/kg, the CL extract produced a 10-30% mortality rate, respectively, and induced signs of toxicity. However, no mortality or adverse effect was noted at the doses of 1000 and 2000mg/kg. The median lethal dose (LD50) of the extract was estimated to be more than 5000mg/kg. In the subchronic study, the CL extract induced no mortality or treatment-related adverse effects with regard to body weight, general behavior, relative organ weights, urine, hematological, and biochemical parameters. Histopathological examination of vital organs showed normal architecture suggesting no morphological alterations. Moreover, the CL extracts improved lipid profile and exhibited a significant hypoglycemic effect in all doses tested in rats. CONCLUSION The results of the present study suggest that treatment with the CL extract for 13 weeks does not appear to produce significant toxicity, except at high dose. Therefore, the use of appropriate levels of the CL extract as a traditional medicine remedies should have a wide margin of safety for its therapeutic use.
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Affiliation(s)
- Mohamed El Kabbaoui
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Alae Chda
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Jamila El-Akhal
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Ouarda Azdad
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Najlae Mejrhit
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Lotfi Aarab
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Rachid Bencheikh
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco
| | - Abdelali Tazi
- Laboratory of Bioactive Molecules, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University (USMBA), P.O. Box 2202, Fez 30000, Morocco.
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