1
|
Liu L, Luo P, Wen P, Xu P. Effects of selenium and iodine on Kashin-Beck disease: an updated review. Front Nutr 2024; 11:1402559. [PMID: 38757132 PMCID: PMC11096467 DOI: 10.3389/fnut.2024.1402559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 04/22/2024] [Indexed: 05/18/2024] Open
Abstract
Kashin-Beck disease (KBD) is an endochondral osteogenesis disorder characterised by epiphysis damage and secondary deformable arthropathy induced by multiple external factors, among which selenium (Se) and iodine deficiency are important influencing factors. Iodine deficiency is usually accompanied by a low Se content in the soil in the KBD areas of China. Se can reverse oxidative damage to chondrocytes. In addition, Se is related to the bone conversion rate and bone mineral density. Low Se will hinder growth and change bone metabolism, resulting in a decrease in the bone conversion rate and bone mineral density. Thyroid hormone imbalance caused by thyroid dysfunction caused by iodine deficiency can damage bone homeostasis. Compared with Se deficiency alone, Se combined with iodine deficiency can reduce the activity of glutathione peroxidase more effectively, which increases the vulnerability of chondrocytes and other target cells to oxidative stress, resulting in chondrocyte death. Clinical studies have shown that supplementation with Se and iodine is helpful for the prevention and treatment of KBD.
Collapse
Affiliation(s)
| | | | | | - Peng Xu
- Department of Joint Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| |
Collapse
|
2
|
Zhang L, Shang F, Liu C, Zhai X. The correlation between iodine and metabolism: a review. Front Nutr 2024; 11:1346452. [PMID: 38567251 PMCID: PMC10985161 DOI: 10.3389/fnut.2024.1346452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/08/2024] [Indexed: 04/04/2024] Open
Abstract
Iodine is involved in the synthesis of thyroid hormones and plays a crucial role in human life. Both iodine deficiency and excess are common issues in certain populations. Iodine also has extrathyroidal effects on organs that can uptake it independently of thyroid hormones. Recently, multiple clinical studies have shown a connection between iodine intake and metabolic disorders, such as metabolic syndrome, obesity, diabetes, hypertension, and dyslipidemia. However, the results of these studies have been inconsistent, and the mechanisms behind these associations are still not well understood. Therefore, in this review, we aim to examine the recent research progress regarding the relationship between iodine and metabolic disorders, along with the relevant mechanisms.
Collapse
Affiliation(s)
- Le Zhang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fangjian Shang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Cong Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaodan Zhai
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
3
|
Srivastava R, Tiwari S, Banakar PS, Bhakat M, Mani V, Mohanty TK, Mondal G. Iodine Supplementation Improved Antioxidant Status, Hormonal Status, Sexual Behavior, and Semen Production Performance of Bos indicus Bulls Under Tropical Climatic Condition. Biol Trace Elem Res 2022; 200:4690-4703. [PMID: 35048268 DOI: 10.1007/s12011-021-03066-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/11/2021] [Indexed: 11/25/2022]
Abstract
Iodine is anessential micronutrient that plays a crucial role in male reproduction (sexual behavior and semen production performance) by modulating thyroid function and the antioxidant status of the animal. Nonetheless, in Bos indicus bulls, a thorough evaluation of the effects of dietary iodine supplementation on antioxidant status, seminal quality parameters, and its interaction with other minerals is not documented. Twelve Bos indicus (Sahiwal) bulls were distributed into three groups (n = 4 in each group) viz. T1 (control), T2, and T3 and fed diets containing 0.250, 0.375, and 0.500 ppm iodine/ kg dry matter intake, corresponding to 0%, 50%, and 100% higher than ICAR (2013) recommendations, respectively. The experimental feeding was carried out for 60 days and the effects on nutrient utilization, hormonal and antioxidant status, and sperm function tests were investigated. Results revealed that body weight, dry matter intake, and nutrient digestibility remained unaffected by dietary supplementation of iodine. Testosterone and thyroxine hormone concentrations were improved (p<0.05) in T2 and T3 groups. Blood and seminal iodine content were also higher (p<0.05) in both the supplemented groups (T2 and T3). Sperm functions viz. viability, physical membrane integrity, acrosomal integrity, motility, and mitochondrial membrane potential were improved (p<0.05) due to iodine supplementation. Furthermore, lipid peroxidation and membrane scrambling in spermatozoa were reduced (p<0.05) in T2 and T3 groups. Blood antioxidant status (total antioxidant activity and GPx levels) was improved (p<0.05) in T2 and T3. Sexual behavior was also improved (p<0.05) in iodine-supplemented groups. Hence, it can be concluded that iodine supplementation at the dose rate of 0.500 ppm in the Bos indicus bull diet is beneficial in improving hormonal status, antioxidant status, and semen quality.
Collapse
Affiliation(s)
- Rashika Srivastava
- Animal Nutrition Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Saurabh Tiwari
- Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - P S Banakar
- Animal Nutrition Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Mukesh Bhakat
- Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Veena Mani
- Animal Nutrition Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - T K Mohanty
- Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Goutam Mondal
- Animal Nutrition Division, ICAR-National Dairy Research Institute, Karnal, Haryana, 132001, India.
| |
Collapse
|
4
|
Impact of urinary iodine concentration on blood glucose levels and blood pressure: a nationwide population-based study. Eur J Nutr 2022; 61:3227-3234. [PMID: 35445294 DOI: 10.1007/s00394-022-02888-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 04/07/2022] [Indexed: 11/04/2022]
Abstract
PURPOSE Iodine is a vital trace element for systemic metabolic control as well as thyroid hormone synthesis. Though iodine has significant antioxidant and anti-inflammatory effects, reports on its effects on metabolic disorders are limited and inconsistent. METHODS Impact of urinary iodine concentrations (UICs) on fasting blood glucose (FBG) levels and blood pressure (BP) in the general Korean population was evaluated adjusting for covariates including thyrotropin level and presence of thyroid diseases. RESULTS The median UIC was 302.3 μg/L in all participants and was significantly lower in those with dysglycemia (303.6 μg/L in normal participants, 285.1 μg/L in participants with FBG levels of 100-125 mg/dL, and 261.8 μg/L in participants with FBG levels ≥ 126 mg/dL; p = 0.002). Similarly, the UIC was lower in participants with higher BP (311.6 μg/L in normal participants, 288.7 μg/L in prehypertensive participants, and 265.8 μg/L in hypertensive participants; p < 0.001). The multiple linear regression model showed a negative correlation between the UIC and FBG levels (p = 0.002), and the UIC and systolic BP (p < 0.001). One standard deviation increase in the UIC showed odds ratios of 0.84 (95% confidence interval [CI] = 0.73-0.98) for elevated FBG levels (≥ 100 mg/dL) and 0.94 (95% CI = 0.88-0.99) for elevated SBP (≥ 120 mm Hg) after full adjustment. CONCLUSION Higher UICs were associated with lower FBG and BP levels, independent of thyroid function and other confounding factors in Korea, an iodine-replete country.
Collapse
|
5
|
Venturelli S, Leischner C, Helling T, Renner O, Burkard M, Marongiu L. Minerals and Cancer: Overview of the Possible Diagnostic Value. Cancers (Basel) 2022; 14:cancers14051256. [PMID: 35267564 PMCID: PMC8909570 DOI: 10.3390/cancers14051256] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/23/2022] [Accepted: 02/26/2022] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Minerals are important but often overlooked compounds that are required for a variety of cellular biochemical processes and pathways that regulate cell proliferation. Their dietary imbalance, which is becoming more common in the diets of industrialized countries, is linked to an increased risk of cancer. The current review will present some of the most important minerals for human physiology and evaluate their potential application as cancer biomarkers. Abstract Cancer is the second leading cause of death worldwide and is expected to increase by one-third over the next two decades, in parallel with the growing proportion of the elderly population. Treatment and control of cancer incidence is a global issue. Since there is no clear way to prevent or cure this deadly malignancy, diagnostic, predictive, and prognostic markers for oncological diseases are of great therapeutic value. Minerals and trace elements are important micronutrients for normal physiological function of the body. They are abundant in natural food sources and are regularly included in dietary supplements whereas highly processed industrial food often contains reduced or altered amounts of them. In modern society, the daily intake, storage pools, and homeostasis of these micronutrients are dependent on certain dietary habits and can be thrown out of balance by malignancies. The current work summarizes the data on minerals and trace elements associated with abnormal accumulation or depletion states in tumor patients and discusses their value as potential tumor-associated biomarkers that could be introduced into cancer therapy.
Collapse
Affiliation(s)
- Sascha Venturelli
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
- Department of Vegetative and Clinical Physiology, Institute of Physiology, University of Tuebingen, Wilhelmstraße 56, 72074 Tuebingen, Germany
| | - Christian Leischner
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
| | - Thomas Helling
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
| | - Olga Renner
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
| | - Markus Burkard
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
- Correspondence: (M.B.); (L.M.); Tel.: +49-711-459-23621 (M.B.); +49-711-459-23618 (L.M.)
| | - Luigi Marongiu
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, Garbenstraße 30, 70599 Stuttgart, Germany; (S.V.); (C.L.); (T.H.); (O.R.)
- Correspondence: (M.B.); (L.M.); Tel.: +49-711-459-23621 (M.B.); +49-711-459-23618 (L.M.)
| |
Collapse
|
6
|
Businge CB, Longo-Mbenza B, Kengne AP. Iodine deficiency in pregnancy along a concentration gradient is associated with increased severity of preeclampsia in rural Eastern Cape, South Africa. BMC Pregnancy Childbirth 2022; 22:98. [PMID: 35120491 PMCID: PMC8815178 DOI: 10.1186/s12884-021-04356-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 12/17/2021] [Indexed: 12/16/2022] Open
Abstract
Background Preeclampsia is a leading cause of maternal mortality and morbidity in South Africa. Iodine deficiency in pregnancy, which is amenable to correction through iodine supplementation, has been reported to increase the risk of preeclampsia. However, the association of iodine nutrition status with preeclampsia in South Africa has not been studied. Methods We enrolled 51 randomly selected normotensive pregnant controls at term together with 51 consecutively selected cases of preeclampsia and 51 cases of severe preeclampsia/eclampsia, all in the third trimester, from Mthatha Regional and Nelson Mandela Academic Hospital in the Eastern Cape Province. Urinary iodine concentration (UIC), serum thyroid-stimulating hormone (TSH), triiodothyronine (FT3), thyroxine (FT4) and thyroglobulin (Tg) levels were compared between cases and controls. Results The respective chronological and gestational ages at enrolment for normotensive, preeclampsia and severe preeclampsia/eclampsia participants were: age 23, 24 and 19 years (p = 0.001), and gestational age 38, 34, and 35 weeks (p < 0.001). The median gravidity was 1 for all three groups. The median UIC, FT4, FT3 revealed a decreasing and Tg a rising trend with the severity of preeclampsia (p < 0.05). TSH had a non-significant rising trend (p > 0.05). The respective median values for normotensive, preeclampsia and severe preeclampsia/eclampsia participants were UIC 217.1, 127.7, and 98.8 μg/L; FT4 14.2, 13.7, and 12. pmol/L; FT3 4.8, 4.4, and 4.0 pmol//L; Tg 19.4, 21.4, and 32. Nine microgram per liter; TSH 2.3, 2.3, and 2.5 mIU/L. UIC < 100 μg/L, Tg > 16 μg/L and FT4 < 11.3 pmol/L were independent predictors of preeclampsia/eclampsia syndrome. Conclusion Women with severe preeclampsia/eclampsia had significantly low UIC and high Tg, suggesting protracted inadequate iodine intake. Inadequate iodine intake during pregnancy severe enough to cause elevated Tg and FT4 deficiency was associated with an increased risk of severe preeclampsia/eclampsia.
Collapse
Affiliation(s)
- Charles Bitamazire Businge
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Walter Sisulu University, Private Bag x1 WSU, Mthatha, 5117, South Africa. .,Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Benjamin Longo-Mbenza
- Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo.,LOMO University of Research, Kinshasa, Democratic Republic of Congo
| | - Andre Pascal Kengne
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
| |
Collapse
|
7
|
Fedoruk RS, Tesarivska UI, Kovalchuk II, Tsap MM, Kaplunenko VH, Koleschuk OI, Khrabko MI. Biological effects of iodine, selenium, sulfur citrates in broiler chickens. REGULATORY MECHANISMS IN BIOSYSTEMS 2021. [DOI: 10.15421/022172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
This study aimed at the assessment of the I, Se, S citrate effect on the organism of broiler chickens. Feeding of chickens of all groups was carried out by using standard balanced feeds – starter, grower, and finish with the use of group feeders placed at the appropriate height from the floor depending on the poultry height. For the chickens of experimental groups, I, Se, S citrate was added to drinking water daily during the 48th day. To the drinking water of chickens of experimental groups different amounts of the citrate solution were added I (200 mg/L), Se (50 mg/L), S (300 mg/L), prepared by the nanotechnology method. Chickens of the II group received the lowest dose of I, Se, S at the rate of 5 μg I/L, 1.25 μg Se/L, 7.5 μg S/L of drinking water, and for poultry of other experimental groups, it was increased by 2 (III), 4 (IV), 6 (V) and 8 (VI) times compared to II group. Coccidiostat "Kokcisan 12%" (KRKA, Slovenia) was added to the starter and grower feed at the stages of its manufacture in quantities of 0.5 kg/t of feed. Coccidiostat was not added to the final feed. During the 48-day technological period, the clinical condition of the poultry was monitored daily by forage and motor activity, safety, and every 7 days – for growth intensity with the individual determination of body weight on a laboratory scale. The investigation of the blood was carried out from the 35th or 48th day during the growing, period and also investigation of the internal organs – liver, heart, spleen, stomach, thymus, and bursa of Fabricius. The increase of cholesterol, triacylglycerols, and albumin in the blood of II, III, and VI chicken groups was established on the 35th day of the experiment, and the reduction of creatinine in III and VI groups. By that time, the effect of highest dose of I, Se, S caused a decrease in the T3 concentration in the blood of chickens in the VI group compared to the I and II groups. In particular, in the blood of chickens of IV, V and VI groups compared to the I, II, III group under these conditions there was a significant increase in the content of urea, Ca, P, cholesterol, as well as albumin – only in IV group on the 48th day. Triacylglycerols’ content increased in the blood serum of chickens in III and IV groups compared to the II and V groups, but in V group – decreased compared to the III, IV groups. The increase in liver, thymus, and heart mass in the II and V chicken groups was noticed and their decrease in the VI group was revealed compared with the control group. Reliable lower coefficients of the body mass of chickens of III and VI groups may indicate a less notable stimulating biological effect of I, Se, S citrate in these doses on liver development than on the whole organism. The addition of I, Se, S citrate to broiler chickens during the period of growing revealed the difference in their biological action in the presence and absence of the Kokcisan 12% in a mixed fodder. A more notable stimulating effect of low dose of I, Se, S citrate on the growth and development on the chickens' organism was established during the withdrawal of coccidiostatics from their diet. The effect may be due to its inhibitory influence on the biological activity of these elements in the first 35 days of growing. In the final period of chicken growing and withdrawal of ionophore Kokcisan from the diet more noticeable changes were revealed in the studied parameters.
Collapse
|
8
|
Soliman AM, Mekkawy MH, Karam HM, Higgins M, Dinkova-Kostova AT, Ghorab MM. Novel iodinated quinazolinones bearing sulfonamide as new scaffold targeting radiation induced oxidative stress. Bioorg Med Chem Lett 2021; 42:128002. [PMID: 33811990 DOI: 10.1016/j.bmcl.2021.128002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/23/2021] [Accepted: 03/23/2021] [Indexed: 12/18/2022]
Abstract
Reactive oxygen species (ROS) play an integral role in the pathogenesis of most diseases. This work presents the design and synthesis of fourteen new diiodoquinazolinone derivatives bearing benzenesulfonamide moiety with variable acetamide tail and evaluation of their ability to activate nuclear factor erythroid 2-related factor 2 (Nrf2) using its classical target NAD(P)H: quinone oxidoreductase 1 (NQO1) in Hepa1c1c7 murine hepatoma cells. The N-(2-chloropyridin-3-yl)-2-((6,8-diiodo-4-oxo-3-(4-sulfamoylphenyl)-3,4-dihydroquinazolin-2-yl)thio) acetamide 17 was the most potent NQO1 inducer (CD = 25 µM) with free radical scavenging activity (IC50 = 28 µM) and in vivo median lethal dose (LD50) of 500 mg/Kg. The possible radioprotective activity of compound 17 was evaluated in (7 Gy) irradiated mice. Compound 17 showed a reduction in radiation induced oxidative stress as evidenced by the lower levels of ROS, malondialdehyde (MDA) and NQO1 in liver tissues. Moreover, compound 17 showed improvement in the complete blood count (CBC) of irradiated mice and decreased mortality over 30 days following irradiation. Additionally, docking studies inside the Nrf2-binding site of Kelch-like ECH associated protein 1 (Keap1), the main negative regulator of Nrf2, confirmed that 17 revealed the same interactions with the key amino acids as those of the co-crystallized ligand. This study identifies 17 as a novel antioxidant that protects against the harmful effect of radiation.
Collapse
Affiliation(s)
- Aiten M Soliman
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo 11765, Egypt
| | - Mai H Mekkawy
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo 11765, Egypt
| | - Heba M Karam
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo 11765, Egypt
| | - Maureen Higgins
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, Scotland, UK
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, Scotland, UK; Department of Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Mostafa M Ghorab
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo 11765, Egypt.
| |
Collapse
|
9
|
Habibi N, Jankovic-Karasoulos T, Leemaqz SYL, Francois M, Zhou SJ, Leifert WR, Perkins AV, Roberts CT, Bianco-Miotto T. Effect of Iodine and Selenium on Proliferation, Viability, and Oxidative Stress in HTR-8/SVneo Placental Cells. Biol Trace Elem Res 2021; 199:1332-1344. [PMID: 32623623 DOI: 10.1007/s12011-020-02277-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022]
Abstract
Adequate maternal micronutrition is vital for placental formation, fetal growth, and development. Oxidative stress adversely affects placental development and function and an association between deficient placental development, oxidative stress, and micronutrient deficiency has been observed. Selenium and iodine are two essential micronutrients with antioxidant properties. Epidemiological studies have shown that poor micronutrient status in pregnant women is associated with a higher incidence of pregnancy complications. The aim of this study was to determine how selenium, iodine, and their combination impact oxidative stress in placental trophoblast cells. HTR8/SVneo extravillous trophoblasts were supplemented with a concentration range of organic and inorganic selenium, potassium iodide, or their combination for 24 h. Oxidative stress was then induced by treating cells with menadione or H2O2 for 24 h. Cell viability and lipid peroxidation as the biomarker of oxidative stress were assessed at 48 h. Both menadione and H2O2 reduced cell viability and increased lipid peroxidation (P < 0.05). Greater cell viability was found in selenium-supplemented cells when compared with vehicle treated cells (P < 0.05). Selenium and iodine supplementation separately or together were associated with lower lipid peroxidation compared with vehicle control (P < 0.05). Supplementation with the combination of selenium and iodine resulted in a greater reduction in lipid peroxidation compared with selenium or iodine alone (P < 0.05). Oxidative stress negatively impacts trophoblast cell survival and cellular integrity. Selenium and iodine protect placental trophoblasts against oxidative stress. Further research is warranted to investigate the molecular mechanisms by which selenium and iodine act in the human placenta.
Collapse
Affiliation(s)
- Nahal Habibi
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Tanja Jankovic-Karasoulos
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shalem Yiner-Lee Leemaqz
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Maxime Francois
- CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, 5000, Australia
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shao Jia Zhou
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Wayne R Leifert
- CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, 5000, Australia
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Gold Coast Campus, Parklands Drive, Southport, QLD, 9726, Australia
| | - Claire T Roberts
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia
| | - Tina Bianco-Miotto
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia.
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia.
| |
Collapse
|
10
|
Effect of Selenium and Iodine on Oxidative Stress in the First Trimester Human Placenta Explants. Nutrients 2021; 13:nu13030800. [PMID: 33671070 PMCID: PMC7997475 DOI: 10.3390/nu13030800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 01/06/2023] Open
Abstract
Imbalanced maternal micronutrient status, poor placentation, and oxidative stress are associated with greater risk of pregnancy complications, which impact mother and offspring health. As selenium, iodine, and copper are essential micronutrients with key roles in antioxidant systems, this study investigated their potential protective effects on placenta against oxidative stress. First trimester human placenta explants were treated with different concentrations of selenium (sodium selenite), iodine (potassium iodide), their combination or copper (copper (II) sulfate). The concentrations represented deficient, physiological, or super physiological levels. Oxidative stress was induced by menadione or antimycin. Placenta explants were collected, fixed, processed, and embedded for laser ablation inductively coupled plasma-mass spectrometry (LA ICP-MS) element imaging or immunohistochemical labelling. LA ICP-MS showed that placenta could uptake selenium and copper from the media. Sodium selenite and potassium iodide reduced DNA damage and apoptosis (p < 0.05). Following oxidative stress induction, a higher concentration of sodium selenite (1.6 µM) was needed to reduce DNA damage and apoptosis while both concentrations of potassium iodide (0.5 and 1 µM) were protective (p < 0.05). A high concentration of copper (40 µM) increased apoptosis and DNA damage but this effect was no longer significant after induction of oxidative stress. Micronutrients supplementation can increase their content within the placenta and an optimal maternal micronutrient level is essential for placenta health.
Collapse
|
11
|
Krela-Kaźmierczak I, Czarnywojtek A, Skoracka K, Rychter AM, Ratajczak AE, Szymczak-Tomczak A, Ruchała M, Dobrowolska A. Is There an Ideal Diet to Protect against Iodine Deficiency? Nutrients 2021; 13:513. [PMID: 33557336 PMCID: PMC7914421 DOI: 10.3390/nu13020513] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 12/17/2022] Open
Abstract
Iodine deficiency is a global issue and affects around 2 billion people worldwide, with pregnant women as a high-risk group. Iodine-deficiency prevention began in the 20th century and started with global salt iodination programmes, which aimed to improve the iodine intake status globally. Although it resulted in the effective eradication of the endemic goitre, it seems that salt iodination did not resolve all the issues. Currently, it is recommended to limit the consumption of salt, which is the main source of iodine, as a preventive measure of non-communicable diseases, such as hypertension or cancer the prevalence of which is increasing. In spite of the fact that there are other sources of iodine, such as fish, seafood, dairy products, water, and vegetables, the high consumption of processed food with a high content of unionised salt, alternative diets or limited salt intake can still lead to iodine deficiency. Thus, iodine deficiency remains a relevant issue, with new, preventive solutions necessary. However, it appears that there is no diet which would fully cover the iodine requirements, and iodine food supplementation is still required.
Collapse
Affiliation(s)
- Iwona Krela-Kaźmierczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| | - Agata Czarnywojtek
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.C.); (M.R.)
- Department of Pharmacology, Poznan University of Medical Sciences, 60-806 Poznan, Poland
| | - Kinga Skoracka
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| | - Anna Maria Rychter
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| | - Alicja Ewa Ratajczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| | - Aleksandra Szymczak-Tomczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| | - Marek Ruchała
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (A.C.); (M.R.)
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Heliodor Swiecicki Hospital, 60-355 Poznan, Poland; (I.K.-K.); (A.M.R.); (A.E.R.); (A.S.-T.); (A.D.)
| |
Collapse
|
12
|
Molecular Iodine Has Extrathyroidal Effects as an Antioxidant, Differentiator, and Immunomodulator. Int J Mol Sci 2021; 22:ijms22031228. [PMID: 33513754 PMCID: PMC7865438 DOI: 10.3390/ijms22031228] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 12/15/2022] Open
Abstract
Most investigations of iodine metabolism in humans and animals have focused on its role in thyroid function. However, considerable evidence indicates that iodine could also be implicated in the physiopathology of other organs. We review the literature that shows that molecular iodine (I2) exerts multiple and complex actions on the organs that capture it, not including its effects as part of thyroid hormones. This chemical form of iodine is internalized by a facilitated diffusion system that is evolutionary conserved, and its effects appear to be mediated by a variety of mechanisms and pathways. As an oxidized component, it directly neutralizes free radicals, induces the expression of type II antioxidant enzymes, or inactivates proinflammatory pathways. In neoplastic cells, I2 generates iodolipids with nuclear actions that include the activation of apoptotic pathways and the inhibition of markers related to stem cell maintenance, chemoresistance, and survival. Recently, I2 has been postulated as an immune modulator that depending on the cellular context, can function as an inhibitor or activator of immune responses. We propose that the intake of molecular iodine is increased in adults to at least 1 mg/day in specific pathologies to obtain the potential extrathyroid benefits described in this review.
Collapse
|
13
|
Cuenca-Micó O, Aceves C. Micronutrients and Breast Cancer Progression: A Systematic Review. Nutrients 2020; 12:nu12123613. [PMID: 33255538 PMCID: PMC7759972 DOI: 10.3390/nu12123613] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022] Open
Abstract
Epidemiological studies on micronutrient consumption have reported protective associations in the incidence and/or progression of various cancer types. Supplementation with some of these micronutrients has been analyzed, showing chemoprotection, low toxicity, antiproliferation, and the ability to modify epigenetic signatures in various cancer models. This review investigates the reported effects of micronutrient intake or supplementation in breast cancer progression. A PubMed search was conducted with the keywords "micronutrients breast cancer progression", and the results were analyzed. The selected micronutrients were vitamins (C, D, and E), folic acid, metals (Cu, Fe, Se, and Zn), fatty acids, polyphenols, and iodine. The majority of in vitro models showed antiproliferative, cell-cycle arrest, and antimetastatic effects for almost all the micronutrients analyzed, but these effects do not reflect animal or human studies. Only one clinical trial with vitamin D and one pilot study with molecular iodine showed favorable overall survival and disease-free interval.
Collapse
|
14
|
Galasso C, Piscitelli C, Brunet C, Sansone C. New In Vitro Model of Oxidative Stress: Human Prostate Cells Injured with 2,2-diphenyl-1-picrylhydrazyl (DPPH) for the Screening of Antioxidants. Int J Mol Sci 2020; 21:ijms21228707. [PMID: 33218067 PMCID: PMC7698958 DOI: 10.3390/ijms21228707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/11/2020] [Accepted: 11/17/2020] [Indexed: 12/28/2022] Open
Abstract
The antioxidant activity of natural compounds consists in their ability to modulate gene and protein expression, thus inducing an integrated cell protective response and repair processes against oxidative stress. New screening tools and methodologies are crucial for the actual requirement of new products with antioxidant activity to boost endogenous oxidative stress responsive pathways, Reactive Oxygen Species (ROS) metabolism and immune system activity, preserving human health and wellness. In this study, we performed and tested an integrated oxidative stress analysis, using DPPH assay and PNT2 cells injured with DPPH. We firstly investigated the mechanism of action of the oxidising agent (DPPH) on PNT2 cells, studying the variation in cell viability, oxidative stress genes, inflammatory mediator and ROS levels. The results reveal that DPPH activated ROS production and release of Prostaglandin E2 in PNT2 at low and intermediate doses, while cells switched from survival to cell death signals at high doses of the oxidising agent. This new in vitro oxidative stress model was validated by using Trolox, β-carotene and total extract of the green microalga Testraselmis suecica. Only the T. suecica extract can completely counteract DPPH-induced injury, since its chemical complexity demonstrated a multilevel protecting and neutralising effect against oxidative stress in PNT2.
Collapse
|
15
|
Habibi N, Grieger JA, Bianco-Miotto T. A Review of the Potential Interaction of Selenium and Iodine on Placental and Child Health. Nutrients 2020; 12:nu12092678. [PMID: 32887377 PMCID: PMC7551633 DOI: 10.3390/nu12092678] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022] Open
Abstract
A healthy pregnancy is important for the growth and development of a baby. An adverse pregnancy outcome is associated with increased chronic disease risk for the mother and offspring. An optimal diet both before and during pregnancy is essential to support the health of the mother and offspring. A key mediator of the effect of maternal nutrition factors on pregnancy outcomes is the placenta. Complicated pregnancies are characterized by increased oxidative stress in the placenta. Selenium and iodine are micronutrients that are involved in oxidative stress in placental cells. To date, there has been no comprehensive review investigating the potential synergistic effect of iodine and selenium in the placenta and how maternal deficiencies may be associated with increased oxidative stress and hence adverse pregnancy outcomes. We undertook a hypothesis-generating review on selenium and iodine, to look at how they may relate to pregnancy complications through oxidative stress. We propose how they may work together to impact pregnancy and placental health and explore how deficiencies in these micronutrients during pregnancy may impact the future health of offspring.
Collapse
Affiliation(s)
- Nahal Habibi
- School of Agriculture, Food and Wine, Waite Research Institute, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia;
| | - Jessica A. Grieger
- Adelaide Medical School, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia
- Correspondence: (J.A.G.); (T.B.-M.)
| | - Tina Bianco-Miotto
- School of Agriculture, Food and Wine, Waite Research Institute, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia;
- Correspondence: (J.A.G.); (T.B.-M.)
| |
Collapse
|
16
|
Soliman AM, Karam HM, Mekkawy MH, Higgins M, Dinkova-Kostova AT, Ghorab MM. Radiomodulatory effect of a non-electrophilic NQO1 inducer identified in a screen of new 6, 8-diiodoquinazolin-4(3H)-ones carrying a sulfonamide moiety. Eur J Med Chem 2020; 200:112467. [PMID: 32502866 PMCID: PMC7355233 DOI: 10.1016/j.ejmech.2020.112467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/15/2022]
Abstract
Fifteen new quinazolinone derivatives bearing benzenesulfonamide moiety with variable acetamide tail were synthesized. The structures assigned to the products were concordant with the microanalytical and spectral data. Compounds 4-18 were screened for their ability to induce the antioxidant enzyme NAD(P)H: quinone oxidoreductase 1 (NQO1) in cells, a classical target for transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2). The 2-((6,8-diiodo-4-oxo-3-(4-sulfamoylphenyl)-3,4-dihydroquinazolin-2-yl)thio)-N-(3,4,5-trimethoxyphenyl) acetamide 15 showed the most potent NQO1 inducer activity in vitro. Compound 15 had low toxicity in mice (LD50 = 500 mg/kg). It also reduced the damaging effects of gamma radiation, as assessed by the levels of Nrf2, NQO1, reactive oxygen species (ROS) and malondialdehyde (MDA) in liver tissues. In addition, compound 15 showed amelioration in the complete blood count of irradiated mice and enhanced survival over a period of 30 days following irradiation. Molecular docking of 15 inside the Nrf2-binding site of Kelch-like ECH associated protein 1 (Keap1), the main negative regulator of Nrf2, showed the same binding interactions as that of the co-crystallized ligand considering the binding possibilities and energy scores. These findings suggest that compound 15 could be considered as a promising antioxidant and radiomodulatory agent.
Collapse
Affiliation(s)
- Aiten M Soliman
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo, 11765, Egypt
| | - Heba M Karam
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo, 11765, Egypt
| | - Mai H Mekkawy
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo, 11765, Egypt
| | - Maureen Higgins
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, Scotland, UK
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, Scotland, UK; Department of Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Mostafa M Ghorab
- Department of Drug Radiation Research, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City P.O. Box 29, Cairo, 11765, Egypt.
| |
Collapse
|
17
|
Jin M, Zhang Z, Li Y, Teng D, Shi X, Ba J, Chen B, Du J, He L, Lai X, Teng X, Li Y, Chi H, Liao E, Liu C, Liu L, Qin G, Qin Y, Quan H, Shi B, Sun H, Tang X, Tong N, Wang G, Zhang JA, Wang Y, Xue Y, Yan L, Yang J, Yang L, Yao Y, Ye Z, Zhang Q, Zhang L, Zhu J, Zhu M, Ning G, Mu Y, Zhao J, Teng W, Shan Z. U-Shaped Associations Between Urinary Iodine Concentration and the Prevalence of Metabolic Disorders: A Cross-Sectional Study. Thyroid 2020; 30:1053-1065. [PMID: 32188373 DOI: 10.1089/thy.2019.0516] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background: Iodine is important in both thyroid function and human metabolism. Studies have explored the effect of iodine on metabolic disorders through thyroid function. This study aimed to investigate the relationship between iodine status and metabolic disorders, such as metabolic syndrome (MetS), hypertension, impaired glucose metabolism, central obesity, and dyslipidemia. Methods: A total of 51,795 subjects aged ≥18 years from the TIDE (Thyroid Disorders, Iodine Status and Diabetes, a national epidemiological cross-sectional study) program were included. The prevalence of metabolic disorders and its related diseases was calculated based on the level of urinary iodine concentrations (UICs) using the chi-square method. To further explore whether the prevalence was associated with UIC, quadratic and UIC-stratified logistic regression models were used. Results: The prevalence of metabolic disorders as a function of UIC was found to be U-shaped with a lower prevalence of 76.0% at an UIC of 300-499 μg/L. Participants with an UIC of 300-499 μg/L showed an association with metabolic disorders (odds ratio [OR] = 0.857, 95% confidence interval [CI 0.796-0.922]) and hypertension (OR = 0.873 [CI 0.814-0.936]). An UIC of 300-799 μg/L was found to be associated with the occurrence of MetS and impaired glucose tolerance. An UIC of 500-799 μg/L was associated with the occurrence of prediabetes (OR = 0.883 [CI 0.797-0.978]). An UIC of ≥300 μg/L was associated with the occurrence of hypertriglyceridemia, hypercholesterolemia, and high levels of low-density lipoprotein cholesterol. Furthermore, an UIC of <100 μg/L showed an association with hypertension (OR = 1.097 [CI 1.035-1.162]) and hypercholesterolemia (OR = 1.178 [CI 1.117-1.242]). Conclusions: The association between UICs in adults and metabolic disorders and its related diseases is U-shaped. The association between UIC and metabolic disorders disappears in cases of iodine deficiency (<100 μg/L) or excess (≥500 μg/L).
Collapse
Affiliation(s)
- Mingyue Jin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Zhuo Zhang
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Yongze Li
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Di Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Xiaoguang Shi
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Jianming Ba
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, P.R. China
| | - Bing Chen
- Department of Endocrinology, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Jianling Du
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
| | - Lanjie He
- Department of Endocrinology, Cardiovascular and Cerebrovascular Disease Hospital of Ningxia Medical University, Yinchuan, P.R. China
| | - Xiaoyang Lai
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, P.R. China
| | - Xiaochun Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Yanbo Li
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Haiyi Chi
- Department of Endocrinology, Hohhot First Hospital, Hohhot, P.R. China
| | - Eryuan Liao
- Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Chao Liu
- Research Center of Endocrine and Metabolic Diseases, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R. China
| | - Libin Liu
- Department of Endocrinology and Metabolism, Fujian Institute of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, P.R. China
| | - Guijun Qin
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, P.R. China
| | - Yingfen Qin
- Department of Endocrine, First Affiliated Hospital of Guangxi Medical University, Nanning, P.R. China
| | - Huibiao Quan
- Department of Endocrinology, Hainan General Hospital, Haikou, P.R. China
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Hui Sun
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Xulei Tang
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, P.R. China
| | - Nanwei Tong
- Department of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Guixia Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, P.R. China
| | - Jin-An Zhang
- Department of Endocrinology, Shanghai University of Medicine & Health Science Affiliated Zhoupu Hospital, Shanghai, P.R. China
| | - Youmin Wang
- Department of Endocrinology, The First Hospital of An Hui Medical University, Hefei, P.R. China
| | - Yuanming Xue
- Department of Endocrinology, The First People's Hospital of Yunnan Province, Kunming, P.R. China
| | - Li Yan
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R. China
| | - Jing Yang
- Department of Endocrinology, The First Hospital of Shanxi Medical University, Taiyuan, P.R. China
| | - Lihui Yang
- Department of Endocrinology and Metabolism, People's Hospital of Tibet Autonomous Region, Lhasa, P.R. China
| | - Yongli Yao
- Department of Endocrinology, Qinghai Provincial People's Hospital, Xining, P.R. China
| | - Zhen Ye
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, P.R. China
| | - Qiao Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Guiyang Medical University, Guiyang, P.R. China
| | - Lihui Zhang
- Department of Endocrinology, Second Hospital of Hebei Medical University, Shijiazhuang, P.R. China
| | - Jun Zhu
- Department of Endocrinology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Mei Zhu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, P.R. China
| | - Guang Ning
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, Rui-Jin Hospital Affiliated with Shanghai Jiao-Tong University School of Medicine, Shanghai, P.R. China
| | - Yiming Mu
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, P.R. China
| | - Jiajun Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated with Shandong University, Jinan, P.R. China
| | - Weiping Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| |
Collapse
|
18
|
A negative association between urinary iodine concentration and the prevalence of hyperuricemia and gout: a cross-sectional and population-based study in Mainland China. Eur J Nutr 2020; 59:3659-3668. [PMID: 32078063 DOI: 10.1007/s00394-020-02199-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 02/06/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS Iodine is one of the most important trace elements in the human body. It is not only the main component of thyroid hormones but also has extrathyroid biological functions. To date, there have been no large-scale epidemiological studies on the relationship between hyperuricemia and iodine intake, although both are closely related to health. A population-based epidemiological survey in China offers such an opportunity. METHODS This population-based cross-sectional study recruited 75,653 adults aged ≥ 18 years from 2015 to 2017 with a randomized, multistage, stratified sampling strategy. Serum uric acid levels and urinary iodine concentrations (UICs) were measured. RESULTS Stratified by UIC, the prevalence of hyperuricemia was 17.8%, 18.8%, 16.0% and 13.7% in the UIC < 100, 100-199, 200-299, and ≥ 300 μg/L groups, respectively; the prevalence of gout was 4.0%, 3.4%, 2.4% and 1.7%, respectively. The prevalence of gout decreased significantly as the UIC increased. The prevalence of hyperuricemia and gout were markedly higher in postmenopausal females than in the premenopausal population (hyperuricemia: 15.9% vs. 8.3%, X2 = 520.072, p < 0.001; gout: 3.6% vs. 1.3%, X2 = 219.889, p < 0.001), and the prevalence decreased as the UIC increased. Subjects in the more than adequate and excessive iodine groups had lower likelihoods of having hyperuricemia [aOR = 0.81 (95% CI 0.77-0.85), aOR = 0.68 (95% CI 0.64-0.72)] and lower odds of having gout than subjects in the adequate iodine (AI) group [aOR = 0.77 (95% CI 0.68-0.86), aOR = 0.59 (95% CI 0.51-0.68)]. CONCLUSIONS UIC was inversely associated with the occurrence of hyperuricemia and gout. More in-depth research and prospective studies are needed to explore the molecular mechanisms and confirm the observed association.
Collapse
|
19
|
Male Predominance of Gastric Cancer among Patients with Hypothyroidism from a Defined Geographic Area. J Clin Med 2020; 9:jcm9010135. [PMID: 31947827 PMCID: PMC7019714 DOI: 10.3390/jcm9010135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 02/07/2023] Open
Abstract
In the past, hypothyroidism has been associated with an increased susceptibility to gastric cancer (GC). Although several epidemiological studies have corroborated this association, a precise mechanistic explanation remains elusive. In this study, this hypothesis was tested by using a large database of subjects who underwent upper endoscopy for various reasons. This was a retrospective, case-control, single-center study. Subjects with GC (cases) were compared with subjects without (controls), according to hypothyroidism status. Overall, the prevalence of GC was 0.73% in the total cohort and was significantly higher in males compared to females (1.4% versus 0.4%, p < 0.0001). Multivariate logistic regression analysis confirmed an increased risk in males with hypothyroidism (OR 5.10; p < 0.0001) after adjusting for potential confounders, especially H. pylori infection. Interestingly, only hypothyroidism and not treatment with levothyroxine was a significant predictor of GC, ruling out a possible direct carcinogenic effect of the replacement therapy. The present study suggests a male-restricted association of gastric carcinogenesis with a hypothyroid state. If the results of this study are confirmed by longitudinal studies, an attractive perspective could open up for the better management of males with concomitant hypothyroidism and a higher risk of GC.
Collapse
|
20
|
Businge CB, Madini N, Longo-Mbenza B, Kengne AP. Insufficient iodine nutrition status and the risk of pre-eclampsia: a protocol for systematic review and meta-analysis. BMJ Open 2019; 9:e025573. [PMID: 31129578 PMCID: PMC6538048 DOI: 10.1136/bmjopen-2018-025573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Pre-eclampsia is one of the leading causes of maternal and perinatal morbidity and mortality worldwide. Although subclinical hypothyroidism (SCH) in pregnancy is one of the established risk factors for pre-eclampsia, the link between iodine deficiency, the main cause of hypothyroidism and pre-eclampsia remains uncertain. About two billion people live in areas with iodine insufficiency. The increased renal blood flow during pregnancy leading to increased renal iodine clearance together with the increased placental transfer of iodine to the fetus leads to further iodine deficiency in pregnancy. Iodine is one of the most potent exogenous antioxidants whose deficiency is associated with oxidant imbalance and endothelial dysfunction, one of the mechanisms associated with increased risk of pre-eclampsia. METHODS AND ANALYSIS A systematic search of published literature will be conducted for case-control studies that directly determined the iodine nutrition status of women with pre-eclampsia and appropriate normotensive controls. A similar search will be conducted for cohort studies in which the incidence of pre-eclampsia among pregnant women with adequate and inadequate iodine nutrition status was reported. Databases including MEDLINE, EMBASE, Google Scholar, SCOPUS and Africa Wide Information will be searched up to 31 December 2018. Screening of identified articles and data extraction will be conducted independently by two investigators. Risk of bias of the included studies will be assessed using a Newcastle-Ottawa Scale. Appropriate meta-analytic techniques will be used to pool prevalence and incidence rates, odds and relative risk of pre-eclampsia from studies with similar features, overall and by geographical regions. Heterogeneity of the estimates across studies will be assessed and quantified and publication bias investigated. This protocol is reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis protocols (PRISMA-P) 2015 guidelines. ETHICS AND DISSEMINATION Since the proposed study will use published data, there is no requirement for ethical approval. This review seeks to identify the risk of pre-eclampsia associated with insufficient iodine nutrition in pregnancy. This will help to ascertain whether insufficient iodine intake may be an independent risk factor for pre-eclampsia. This will advise policy makers on the possibility of maximising iodine nutrition in pregnancy and reproductive age as one of the remedies for prevention of pre-eclampsia among populations at risk of inadequate iodine intake. This review is part of the thesis that will be submitted for the award of a PhD in Medicine to the Faculty of Health Sciences of the University of Cape Town. In addition the results will be published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42018099427.
Collapse
Affiliation(s)
- Charles Bitamazire Businge
- Department of Medicine, University of Cape Town, Cape Town, Western Cape, South Africa
- Department of Obstetrics and Gynaecology, Walter Sisulu University Faculty of Health Sciences, Mthatha, Eastern Cape, South Africa
| | - Namhla Madini
- Health Sciences Library, University of Cape Town Faculty of Health Sciences, Cape Town, Western Cape, South Africa
| | - Benjamin Longo-Mbenza
- Universite de Kinshasa Faculte de Medecine, Kinshasa, The Democratic Republic of the Congo
- LOMO Medical Centre, Kinshasa, The Democratic Republic of the Congo
| | - A P Kengne
- Non-Communicable Disease Research Unit, South African Medical Research Council, Tygerberg, South Africa
- Department of Medicine, University of Cape Town Faculty of Health Sciences, Cape Town, Western Cape, South Africa
| |
Collapse
|
21
|
Muller I, Barrett-Lee PJ. The antigenic link between thyroid autoimmunity and breast cancer. Semin Cancer Biol 2019; 64:122-134. [PMID: 31128301 DOI: 10.1016/j.semcancer.2019.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 02/06/2023]
Abstract
The association between breast cancer and benign thyroid disorders, in particular thyroid autoimmunity, has been debated for decades. Autoantibodies to thyroid peroxidase, the hallmark of thyroid autoimmunity, have a higher prevalence among patients with breast cancer compared with the general population. Furthermore a correlation between their positivity and a better prognosis of breast cancer was found in several independent small-scale studies, even if such observation was not confirmed in a subsequent retrospective study conducted on the largest patient cohort to date. The thyroid and mammary glands present several biological similarities, therefore the hypothesis of an immune response to shared thyroid/breast antigens could in part explain the association between thyroid autoimmunity and breast cancer. The sodium iodide symporter is expressed in both glands, however it seems unlikely to be the key common antigen, considering that autoantibodies targeting it are rare. Instead thyroid peroxidase, one of the major thyroid autoantigens, is also expressed in breast tissue and therefore represents the main antigenic link between thyroid autoimmunity and breast cancer. Furthermore lactoperoxidase, an enzyme of the same family that shares structural similarities with thyroid peroxidase, is expressed in neoplastic breast cells and is responsible for the cross-reactivity with some autoantibodies to thyroid peroxidase. Novel strategies for the diagnosis and treatment of breast cancer might take advantage of the antigenic link between thyroid and breast tissues.
Collapse
Affiliation(s)
- Ilaria Muller
- Thyroid Research Group, Division of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.
| | | |
Collapse
|
22
|
Waugh DT. Fluoride Exposure Induces Inhibition of Sodium/Iodide Symporter (NIS) Contributing to Impaired Iodine Absorption and Iodine Deficiency: Molecular Mechanisms of Inhibition and Implications for Public Health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E1086. [PMID: 30917615 PMCID: PMC6466022 DOI: 10.3390/ijerph16061086] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/19/2019] [Accepted: 03/21/2019] [Indexed: 12/24/2022]
Abstract
The sodium iodide symporter (NIS) is the plasma membrane glycoprotein that mediates active iodide transport in the thyroid and other tissues, such as the salivary, gastric mucosa, rectal mucosa, bronchial mucosa, placenta and mammary glands. In the thyroid, NIS mediates the uptake and accumulation of iodine and its activity is crucial for the development of the central nervous system and disease prevention. Since the discovery of NIS in 1996, research has further shown that NIS functionality and iodine transport is dependent on the activity of the sodium potassium activated adenosine 5'-triphosphatase pump (Na+, K+-ATPase). In this article, I review the molecular mechanisms by which F inhibits NIS expression and functionality which in turn contributes to impaired iodide absorption, diminished iodide-concentrating ability and iodine deficiency disorders. I discuss how NIS expression and activity is inhibited by thyroglobulin (Tg), tumour necrosis factor alpha (TNF-α), transforming growth factor beta 1 (TGF-β1), interleukin 6 (IL-6) and Interleukin 1 beta (IL-1β), interferon-γ (IFN-γ), insulin like growth factor 1 (IGF-1) and phosphoinositide 3-kinase (PI3K) and how fluoride upregulates expression and activity of these biomarkers. I further describe the crucial role of prolactin and megalin in regulation of NIS expression and iodine homeostasis and the effect of fluoride in down regulating prolactin and megalin expression. Among many other issues, I discuss the potential conflict between public health policies such as water fluoridation and its contribution to iodine deficiency, neurodevelopmental and pathological disorders. Further studies are warranted to examine these associations.
Collapse
Affiliation(s)
- Declan Timothy Waugh
- EnviroManagement Services, 11 Riverview, Doherty's Rd, Bandon, Co. Cork, P72 YF10, Ireland.
| |
Collapse
|
23
|
Businge CB, Longo-Mbenza B, Adeniyi OV, Muaka MM, Lelo GM, Nkanga MSN, Kavembe JM, Buassa-bu-Tsumbu B, Kabangu JRM, Ter Goon D. Diagnostic performance of several biomarkers for identification of cases of non-communicable diseases among Central Africans. Afr Health Sci 2018; 18:909-916. [PMID: 30766554 PMCID: PMC6354856 DOI: 10.4314/ahs.v18i4.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background This study determined the diagnostic performance of new biomarkers for a composite diagnosis of non-communicable diseases (NCDs) among Central Africans. Methods This case-control study was conducted at LOMO Medical Centre, Kinshasa, DR Congo (DRC) between January – December, 2008. The cases comprised 226 participants with concurrent presence of at least 2 or more of NCDs. Anthropometric parameters and blood pressure were measured while blood samples were assayed for biomarkers. The receiver operating characteristics curve and the logistic regression model were applied. Results Serum selenium (Se) had specificity and sensitivity of 72.4% and 91.1%, respectively with an area under the curve (AUC) of 0.802; Nitric oxide (NO) (specificity: 72.4%; sensitivity: 93.0%) (AUC = 0.800); Thyroid stimulating hormone (TSH) levels > 6 Mu/L (specificity: 75%; sensitivity: 65%) (AUC = 0.0.727); serum calcium levels of ≥ 110g/L (specificity: 76%; sensitivity: 75%) (AUC = 0.822); and daily salt intake of ≥10 g/day (specificity: 75%; sensitivity: 67%) (AUC = 0.653) in the diagnosis of all NCDs, which were all highly significant (<0.0001). Conclusion Serum Se, NO, calcium, TSH and daily salt intake had high diagnostic performance as biomarkers for identification of patients with concurrent NCDs in the study population.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Daniel Ter Goon
- Faculty of Health Sciences, University of Fort Hare, East London, South Africa
| |
Collapse
|
24
|
Swaminath S, Um CY, Prizment AE, Lazovich D, Bostick RM. Combined Mineral Intakes and Risk of Colorectal Cancer in Postmenopausal Women. Cancer Epidemiol Biomarkers Prev 2018; 28:392-399. [PMID: 30464021 DOI: 10.1158/1055-9965.epi-18-0412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/09/2018] [Accepted: 11/06/2018] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Despite considerable biological plausibility, other than for calcium, there are few reported epidemiologic studies on mineral intake-colorectal cancer associations, none of which investigated multiple minerals in aggregate. METHODS Accordingly, we incorporated 11 minerals into a mineral score and investigated its association with incident colorectal cancer in the Iowa Women's Health Study, a prospective cohort study of 55- to 69-year-old women who completed a food frequency questionnaire in 1986. In the analytic cohort (n = 35, 221), 1,731 incident colorectal cancer cases were identified via the State Health Registry of Iowa. Participants' calcium, magnesium, manganese, zinc, selenium, potassium, and iodine intakes were ranked 1 to 5, with higher ranks indicating higher, potentially anticarcinogenic, intakes, whereas for iron, copper, phosphorus, and sodium intakes, the rankings were reversed to account for their possible procarcinogenic properties. The rankings were summed to create each woman's mineral score. The mineral score-incident colorectal cancer association was estimated using multivariable Cox proportional hazards regression. RESULTS There was decreasing risk with an increasing score (P trend = 0.001). The hazard ratios and 95% confidence intervals (CI) for those in mineral score quintiles 2 to 5 relative to those in the lowest were 0.91 (CI, 0.88-1.08), 0.85 (CI, 0.75-0.95), 0.86 (CI, 0.75-0.97), and 0.75 (CI, 0.71-0.95), respectively. CONCLUSIONS Our findings suggest that a predominance of putative anti- relative to pro-colorectal carcinogenic mineral intakes may be inversely associated with colorectal cancer risk. IMPACT These results support further investigation of colorectal cancer etiology using composite mineral intake scores.
Collapse
Affiliation(s)
- Samyukta Swaminath
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Caroline Y Um
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Anna E Prizment
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - DeAnn Lazovich
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Roberd M Bostick
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia. .,Winship Cancer Institute, Emory University, Atlanta, Georgia
| |
Collapse
|
25
|
Manchanda G, Sodhi RK, Jain UK, Chandra R, Madan J. Iodinated curcumin bearing dermal cream augmented drug delivery, antimicrobial and antioxidant activities. J Microencapsul 2018; 35:49-61. [PMID: 29308689 DOI: 10.1080/02652048.2018.1425749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Curcumin (Cur) exhibits weak microbicidal activity owing to high lipophilicity and low cell permeability. Therefore, in the present investigation, Cur was iodinated using elemental iodine (I2) to synthesise Cur-I2 powder that was later formulated as Cur-I2 dermal cream and characterised in vitro for antimicrobial and antioxidant activities. METHODS AND RESULTS Electrophilic addition of I2 saturated the olefinic bonds of Cur, as confirmed by UV/visible spectroscopy, FT-IR, 1H NMR and DSC techniques. In addition, in vitro skin permeation and retention analysis indicated that Cur-I2 cream followed the first order and Higuchi model for drug release through the rat skin. The minimum inhibitory concentration (MIC) of Cur-I2 powder was measured to be 60 and 90 µg/ml significantly (p < 0.05) lower than 150 and 120 µg/ml of Cur against Staphylococcus aureus and Escherichia coli, respectively. Moreover, Cur-I2 also exhibited strong antioxidant potential. CONCLUSIONS Cur-I2 cream warrants further in vivo study to scale up the technology for clinical translation.
Collapse
Affiliation(s)
- Gagandeep Manchanda
- a Department of Pharmaceutics , Chandigarh College of Pharmacy , Mohali , Punjab , India
| | - Rupinder Kaur Sodhi
- a Department of Pharmaceutics , Chandigarh College of Pharmacy , Mohali , Punjab , India
| | - Upendra Kumar Jain
- a Department of Pharmaceutics , Chandigarh College of Pharmacy , Mohali , Punjab , India
| | - Ramesh Chandra
- b Dr B.R Ambedkar Centre for Biomedical Research , University of Delhi , Delhi , India.,c Department of Chemistry , University of Delhi , Delhi , India
| | - Jitender Madan
- a Department of Pharmaceutics , Chandigarh College of Pharmacy , Mohali , Punjab , India
| |
Collapse
|
26
|
Abuelo A, Hernandez J, Alves-Nores V, Benedito JL, Castillo C. Association of Serum Concentration of Different Trace Elements with Biomarkers of Systemic Oxidant Status in Dairy Cattle. Biol Trace Elem Res 2016; 174:319-324. [PMID: 27113768 DOI: 10.1007/s12011-016-0713-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/18/2016] [Indexed: 10/21/2022]
Abstract
There has been some recent criticism about the reliability of the assays commonly used to measure oxidant status in cattle, because some recent publications suggested that the concentration of different trace elements influences the results of these assays. The aim of this study was to test the correlation in 502 bovine serum samples between the concentration of several trace elements (Br, Co, Cr, Cu, Fe, I, Mn, Mo, Ni, Se, Sr, V and Zn) and markers of oxidant status (reactive oxygen species (ROS) and total serum antioxidant capacity (SAC)). The Oxidative Stress index (OSi) was also calculated as ROS/SAC. Some significant correlations were found, although weak (|ρ| < 0.50). Therefore, the relationships observed might be attributed to the different pro- and antioxidant effect of the different elements rather than to the assays detecting these elements instead of the oxidised molecules or total antioxidant potential, respectively. The OSi was poorly correlated (|ρ| ≤ 0.36) with the concentration of the studied trace elements, and therefore, its use is recommended to assess shifts in the systemic redox balance.
Collapse
Affiliation(s)
- Angel Abuelo
- Graham Centre for Agricultural Innovation, School of Animal and Veterinary Sciences, Charles Sturt University and NSW Department of Primary Industries, Wagga Wagga, NSW, 2678, Australia.
- Departamento de Patología Animal, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002, Lugo, Spain.
| | - Joaquín Hernandez
- Departamento de Patología Animal, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Víctor Alves-Nores
- Graham Centre for Agricultural Innovation, School of Animal and Veterinary Sciences, Charles Sturt University and NSW Department of Primary Industries, Wagga Wagga, NSW, 2678, Australia
- Departamento de Patología Animal, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - José L Benedito
- Departamento de Patología Animal, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Cristina Castillo
- Departamento de Patología Animal, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| |
Collapse
|
27
|
Effects of potassium bromate on male rat growth and testicular histology. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2016. [DOI: 10.1016/j.apjr.2016.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
28
|
Differential genotoxicity mechanisms of silver nanoparticles and silver ions. Arch Toxicol 2016; 91:509-519. [PMID: 27180073 DOI: 10.1007/s00204-016-1730-y] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 04/27/2016] [Indexed: 12/31/2022]
Abstract
In spite of many reports on the toxicity of silver nanoparticles (AgNPs), the mechanisms underlying the toxicity are far from clear. A key question is whether the observed toxicity comes from the silver ions (Ag+) released from the AgNPs or from the nanoparticles themselves. In this study, we explored the genotoxicity and the genotoxicity mechanisms of Ag+ and AgNPs. Human TK6 cells were treated with 5 nM AgNPs or silver nitrate (AgNO3) to evaluate their genotoxicity and induction of oxidative stress. AgNPs and AgNO3 induced cytotoxicity and genotoxicity in a similar range of concentrations (1.00-1.75 µg/ml) when evaluated using the micronucleus assay, and both induced oxidative stress by measuring the gene expression and reactive oxygen species in the treated cells. Addition of N-acetylcysteine (NAC, an Ag+ chelator) to the treatments significantly decreased genotoxicity of Ag+, but not AgNPs, while addition of Trolox (a free radical scavenger) to the treatment efficiently decreased the genotoxicity of both agents. In addition, the Ag+ released from the highest concentration of AgNPs used for the treatment was measured. Only 0.5 % of the AgNPs were ionized in the culture medium and the released silver ions were neither cytotoxic nor genotoxic at this concentration. Further analysis using electron spin resonance demonstrated that AgNPs produced hydroxyl radicals directly, while AgNO3 did not. These results indicated that although both AgNPs and Ag+ can cause genotoxicity via oxidative stress, the mechanisms are different, and the nanoparticles, but not the released ions, mainly contribute to the genotoxicity of AgNPs.
Collapse
|
29
|
Ansari Z, Dhara S, Bandyopadhyay B, Saha A, Sen K. Spectral anion sensing and γ-radiation induced magnetic modifications of polyphenol generated Ag-nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 156:98-104. [PMID: 26654966 DOI: 10.1016/j.saa.2015.11.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/16/2015] [Accepted: 11/25/2015] [Indexed: 06/05/2023]
Abstract
A fast one step bio-synthesis for in situ preparation of silver nanoparticles is proposed. The method involves reduction of AgNO3 with an aqueous extract of peanut skin, which is a good source of polyphenols. The silver nanoparticles thus synthesized were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-Vis absorption spectroscopy, Fourier Transform infrared (FTIR) spectroscopy and magnetic measurements. Effect of low dose γ irradiation during the synthesis was studied and their physico-chemical properties were compared with those produced without irradiation. On the contrary to the diamagnetic behavior of bulk silver, the silver nanoparticles thus prepared show a significant ferromagnetic moment component. Variable time exposure to γ-irradiation results in an exponential decay of ferromagnetic component. A freshly prepared solution of silver nanoparticles shows selective spectral changes towards iodide ions at trace concentration (below 50 μM) among a series of 16 other competing anions. The prepared nanoparticles are therefore suitable for anion sensing application.
Collapse
Affiliation(s)
- Zarina Ansari
- Department of Chemistry, University of Calcutta, 92, APC Road, Kolkata 700009, India
| | - Susmita Dhara
- CMP Division, Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata 700064, India
| | - Bilwadal Bandyopadhyay
- CMP Division, Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata 700064, India
| | - Abhijit Saha
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, III/LB-8, Bidhannagar, Kolkata 700098, India
| | - Kamalika Sen
- Department of Chemistry, University of Calcutta, 92, APC Road, Kolkata 700009, India.
| |
Collapse
|
30
|
Duan Q, Wang T, Zhang N, Perera V, Liang X, Abeysekera IR, Yao X. Propylthiouracil, Perchlorate, and Thyroid-Stimulating Hormone Modulate High Concentrations of Iodide Instigated Mitochondrial Superoxide Production in the Thyroids of Metallothionein I/II Knockout Mice. Endocrinol Metab (Seoul) 2016; 31:174-84. [PMID: 26754589 PMCID: PMC4803556 DOI: 10.3803/enm.2016.31.1.174] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/02/2015] [Accepted: 12/18/2015] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Increased oxidative stress has been suggested as one of the underlying mechanisms in iodide excess-induced thyroid disease. Metallothioneins (MTs) are regarded as scavengers of reactive oxygen species (ROS) in oxidative stress. Our aim is to investigate the effects of propylthiouracil (PTU), a thyroid peroxidase inhibitor, perchlorate (KClO₄), a competitive inhibitor of iodide transport, and thyroid stimulating hormone (TSH) on mitochondrial superoxide production instigated by high concentrations of iodide in the thyroids of MT-I/II knockout (MT-I/II KO) mice. METHODS Eight-week-old 129S7/SvEvBrd-Mt1(tm1Bri) Mt2(tm1Bri)/J (MT-I/II KO) mice and background-matched wild type (WT) mice were used. RESULTS By using a mitochondrial superoxide indicator (MitoSOX Red), lactate dehydrogenase (LDH) release, and methyl thiazolyl tetrazolium (MTT) assay, we demonstrated that the decreased relative viability and increased LDH release and mitochondrial superoxide production induced by potassium iodide (100 μM) can be relieved by 300 μM PTU, 30 μM KClO₄, or 10 U/L TSH in the thyroid cell suspensions of both MT-I/II KO and WT mice (P<0.05). Compared to the WT mice, a significant decrease in the relative viability along with a significant increase in LDH release and mitochondrial superoxide production were detected in MT-I/II KO mice(P<0.05). CONCLUSION We concluded that PTU, KClO₄, or TSH relieved the mitochondrial oxidative stress induced by high concentrations of iodide in the thyroids of both MT-I/II KO and WT mice. MT-I/II showed antioxidant effects against high concentrations of iodide-induced mitochondrial superoxide production in the thyroid.
Collapse
Affiliation(s)
- Qi Duan
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Tingting Wang
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Na Zhang
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Vern Perera
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Xue Liang
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Iruni Roshanie Abeysekera
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Xiaomei Yao
- Department of Pathophysiology, School of Basic Medical Science, Tianjin Medical University, Tianjin, China.
| |
Collapse
|
31
|
Olivo-Vidal ZE, Rodríguez RC, Arroyo-Helguera O. Iodine Affects Differentiation and Migration Process in Trophoblastic Cells. Biol Trace Elem Res 2016; 169:180-8. [PMID: 26152853 DOI: 10.1007/s12011-015-0433-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/30/2015] [Indexed: 01/22/2023]
Abstract
Iodine deficiency is associated with oxidative stress increase and preeclampsia during gestation, suggesting that iodine concentration plays an important role in the normal placenta physiology. The question raised is to analyze the effect of iodine deficiency on oxidative stress, viability, differentiation, and migration process and changes in the expression of differentiation and migration markers. Iodine deprivation was done using potassium perchlorate (KCLO4) to block sodium iodide symporter (NIS) transporter and 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid DIDS to inhibit pendrine (PEN) transport for 3-48 h. Then trophoblast cells were treated with low iodine doses of 5-500 μM and high iodine doses of 100-5000 μM. Oxidative stress, viability, and human chorionic gonadotropin (hGC) were measured by colorimetric methods. Migration throphoblast cells were evaluated by both wound healing and Boyden chamber assays. Changes in mRNA expression were analyzed by real-time RT-PCR. Iodine deprivation induces a significant increase of reactive oxygen species (ROS), viability, and migration process vs control cells. We found a significant overregulation in the mRNA's peroxisome proliferator-activated receptor (PPAR-gamma), Snail, and matrix metalloproteinase-9 (MMP-9) mRNA's in cells deprived of iodine, as well as a down glial cell missing-1 (GCM-1) regulation, hGC, pregnancy-associated plasma protein-A (PAPP-A), and E-cadherin mRNA expression. The expression of hypoxic induction factor alpha (HIFα) mRNA does not change with iodine deprivation. In cells deprived of iodine, supplementing low iodine doses (5-500 μM) does not induce any significant changes in viability. However, ROS and migration process were decreased, although we found an increased human chorionic gonadotropin (hCG) secretion as a differentiation marker. In addition, we found that PPAR-gamma, Snail, and MPP-9 mRNAs expression are downregulated with low iodine doses, in contrast with GCM-1, PAPP-A, hGC, and E-cadherin that increase their expression vs cells deprived of iodine. High iodine doses (1000-5000 μM) have shown cytotoxic effects. Based on our results, iodine is important for keeping the proliferation/differentiation balance in the placenta.
Collapse
Affiliation(s)
- Zendy Evelyn Olivo-Vidal
- Centro de investigaciones Biomédicas, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
| | - Roció Coutiño Rodríguez
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
| | - Omar Arroyo-Helguera
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México.
| |
Collapse
|
32
|
Hauser-Davis RA, Silva JAN, Rocha RCC, Saint'Pierre T, Ziolli RL, Arruda MAZ. Acute selenium selenite exposure effects on oxidative stress biomarkers and essential metals and trace-elements in the model organism zebrafish (Danio rerio). J Trace Elem Med Biol 2016; 33:68-72. [PMID: 26653745 DOI: 10.1016/j.jtemb.2015.09.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/11/2015] [Accepted: 09/17/2015] [Indexed: 11/23/2022]
Abstract
Selenium (Se) is an essential trace-element that becomes toxic when present at high concentrations. Little is known regarding Se effects on parameters such as oxidative stress biomarkers. The aim of the present study was to investigate the effects of acute selenium exposure on oxidative stress biomarkers in a model organism, zebrafish (Danio rerio). Fish were exposed to selenium selenite at 1mgL(-1). Reduced glutathione (GSH), and metallothionein (MT) concentrations were determined in liver, kidney and brain, with MT also being determined in bile. Essential metals and trace-elements were also determined by inductively coupled mass spectrometry (ICP-MS) in order to verify possible metal homeostasis alterations. GSH concentrations in liver, kidney and brain increased significantly (1.05±0.03μmolg(-1) ww, 1.42±0.03μmolg(-1) ww and 1.64±0.03μmolg(-1) ww, respectively) in the Se-exposed group when compared to the controls (0.88±0.05μmolg(-1) ww, 0.80±0.04μmolg(-1) ww and 0.89±0.03μmolg(-1) ww for liver, kidney and brain, respectively). MT levels in Se-exposed liver (0.52±0.03μmolg(-1) ww) decreased significantly in comparison to the control group (0.64±0.02μmolg(-1) ww), while levels in bile increased, albeit non-significantly. This is in accordance with previous studies that indicate efficient biliary MT action, leading to a rapid metabolism and elimination of contaminants from the body. Levels in the brain increased significantly after Se-exposure (0.57±0.01μmolg(-1) ww) when compared to the control group (0.35±0.03μmolg(-1) ww) since this organ does not present a detoxification route as quick as the liver-gallbladder route. Several metal and trace-elements were altered with Se-exposure, indicating that excess of selenium results in metal dyshomeostasis. This is the first report on metal dyshomeostasis due to Se-exposure, which may be the first step in the mechanism of action of selenium toxicity, as is postulated to occur in certain major human pathophysiologies.
Collapse
Affiliation(s)
- R A Hauser-Davis
- Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP, 22453-900 Rio de Janeiro, RJ, Brazil; Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Programa de Pós-Graduação em Ciências Biológicas-Biodiversidade Neotropical, Av. Pasteur, 458-Urca, CEP, 22290-240 Rio de Janeiro, RJ, Brazil; Instituto de Química, Departamento de Química Analítica, Universidade Estadual de Campinas-UNICAMP, Grupo de Espectrometria, Preparo de amostras e Mecanização-GEPAM, Cx. Postal 6154, 13084-971Campinas, SP, Brazil.
| | - J A N Silva
- Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Programa de Pós-Graduação em Ciências Biológicas-Biodiversidade Neotropical, Av. Pasteur, 458-Urca, CEP, 22290-240 Rio de Janeiro, RJ, Brazil
| | - Rafael C C Rocha
- Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP, 22453-900 Rio de Janeiro, RJ, Brazil
| | - Tatiana Saint'Pierre
- Pontifícia Universidade Católica-Rio de Janeiro (PUC-Rio), Chemistry Department, Rua Marquês de São Vicente, 225, Gávea, CEP, 22453-900 Rio de Janeiro, RJ, Brazil
| | - R L Ziolli
- Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Programa de Pós-Graduação em Ciências Biológicas-Biodiversidade Neotropical, Av. Pasteur, 458-Urca, CEP, 22290-240 Rio de Janeiro, RJ, Brazil
| | - M A Z Arruda
- Instituto de Química, Departamento de Química Analítica, Universidade Estadual de Campinas-UNICAMP, Grupo de Espectrometria, Preparo de amostras e Mecanização-GEPAM, Cx. Postal 6154, 13084-971Campinas, SP, Brazil; Instituto Nacional de Ciência e Tecnologia em Bioanalítica-INCTBio, Instituto de Química, Universidade Estadual de Campinas-UNICAMP, Cx. Postal 6154, 13084-971 Campinas, SP, Brazil
| |
Collapse
|
33
|
Liu D, Lin X, Yu F, Zhang M, Chen H, Bao W, Wang X. Effects of 3,5-Diiodotyrosine and Potassium Iodide on Thyroid Function and Oxidative Stress in Iodine-Excess Wistar Rats. Biol Trace Elem Res 2015; 168:447-52. [PMID: 26002813 DOI: 10.1007/s12011-015-0371-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 05/13/2015] [Indexed: 02/03/2023]
Abstract
The objective of this study was to investigate the effects of organic iodine (3,5-diiodotyrosine, DIT) and inorganic iodine (potassium iodine, KI) on thyroid function and oxidative stress in iodine-excess Wistar rats. Seventy-two Wistar rats were randomly divided into eight groups: normal control (NC), thyroid tablet-induced hyperthyroidism model (HM), low DIT (L-DIT), medium DIT (M-DIT), high DIT (H-DIT), low KI (L-KI), medium KI (M-KI), and high KI (H-KI). All rats were fed ad libitum for 30 days. Morphological changes in the thyroid, absolute and relative weights of the thyroid, thyroid function markers free triiodothyronine (FT3) and free thyroxine (FT4), urinary iodine level, and oxidative stress indicators were measured. Compared to the HM groups, the FT3 and FT4 levels decreased in the L-DIT groups; the thyroid weight and thyroid weight/body weight values decreased markedly in the L-DIT and M-DIT groups; serum superoxide dismutase/malondialdehyde increased markedly; glutathione peroxidase activity increased markedly in the L-DIT groups; and malondialdehyde levels decreased significantly in the M-DIT groups. However, the FT3 and FT4 levels decreased and glutathione peroxidase levels increased significantly in the DIT groups compared to their corresponding KI groups. Additionally, urinary iodine levels increased significantly in both DIT and KI groups, while the highest urinary iodine excretion was showed in the DIT groups among groups. When the addition of iodine with the same doses in iodine-excess rats, although neither DIT nor KI normalized iodine levels in the iodine-excess rats, the DIT did less damage than did KI to thyroid follicular cells. Therefore, DIT rather than KI had a protective effect by balancing the antioxidant system when exposed to supraphysiological iodine. These suggest that DIT may be used as a new alternative iodized salt in the universal salt iodization to avoid the potential damage of surplus KI.
Collapse
Affiliation(s)
- Dan Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Xinying Lin
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China.
| | - Fugui Yu
- Shandong food and drug administration, Jinan, Shandong, China
| | - Man Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Hongxia Chen
- Institution of Biomedicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Wei Bao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xia Wang
- Department of Maternal and Child Health Care, School of Public Health, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China.
| |
Collapse
|
34
|
Nimalaratne C, Wu J. Hen Egg as an Antioxidant Food Commodity: A Review. Nutrients 2015; 7:8274-93. [PMID: 26404361 PMCID: PMC4632414 DOI: 10.3390/nu7105394] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 01/04/2023] Open
Abstract
Intake of antioxidants through diet is known to be important in reducing oxidative damage in cells and improving human health. Although eggs are known for their exceptional, nutritional quality, they are not generally considered as antioxidant foods. This review aims to establish the importance of eggs as an antioxidant food by summarizing the current knowledge on egg-derived antioxidants. Eggs have various natural occurring compounds including the proteins ovalbumin, ovotransferrin and lysozyme in egg white, as well as phosvitin, carotenoids and free aromatic amino acids in egg yolk. Some lipophilic antioxidants such as vitamin E, carotenoids, selenium, iodine and others can be transferred from feed into egg yolk to produce antioxidant-enriched eggs. The bioactivity of egg antioxidants can be affected by food processing, storage and gastrointestinal digestion. Generally thermal processing methods can promote loss of antioxidant properties in eggs due to oxidation and degradation, whereas gastrointestinal digestion enhances the antioxidant properties, due to the formation of new antioxidants (free amino acids and peptides). In summary, in addition to its well-known nutritional contribution to our diet, this review emphasizes the role of eggs as an important antioxidant food.
Collapse
Affiliation(s)
- Chamila Nimalaratne
- Department of Agricultural, Food and Nutritional Science (AFNS), 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB T6G 2P5, Canada.
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science (AFNS), 4-10 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB T6G 2P5, Canada.
| |
Collapse
|
35
|
Kolypetri P, King J, Larijani M, Carayanniotis G. Genes and environment as predisposing factors in autoimmunity: acceleration of spontaneous thyroiditis by dietary iodide in NOD.H2(h4) mice. Int Rev Immunol 2015; 34:542-56. [PMID: 26287317 DOI: 10.3109/08830185.2015.1065828] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In the field of autoimmune thyroiditis, NOD.H2(h4) mice have attracted significant and increasing attention since they not only develop spontaneous disease but they present thyroiditis with accelerated incidence and severity if they ingest iodide through their drinking water. This animal model highlights the interplay between genetic and dietary factors in the triggering of autoimmune disease and offers new opportunities to study immunoregulatory parameters influenced by both genes and environment. Here, we review experimental findings with this mouse model of thyroiditis.
Collapse
Affiliation(s)
- Panayota Kolypetri
- a Division of Biomedical Sciences , Memorial University of Newfoundland , St. John's , NL , Canada
| | - Justin King
- a Division of Biomedical Sciences , Memorial University of Newfoundland , St. John's , NL , Canada
| | - Mani Larijani
- a Division of Biomedical Sciences , Memorial University of Newfoundland , St. John's , NL , Canada
| | - George Carayanniotis
- a Division of Biomedical Sciences , Memorial University of Newfoundland , St. John's , NL , Canada.,b Division of Endocrinology, Faculty of Medicine , Memorial University of Newfoundland , St. John's , NL , Canada
| |
Collapse
|
36
|
Liu H, Zeng Q, Cui Y, Yu L, Zhao L, Hou C, Zhang S, Zhang L, Fu G, Liu Y, Jiang C, Chen X, Wang A. The effects and underlying mechanism of excessive iodide on excessive fluoride-induced thyroid cytotoxicity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:332-340. [PMID: 25104093 DOI: 10.1016/j.etap.2014.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 06/18/2014] [Accepted: 06/19/2014] [Indexed: 06/03/2023]
Abstract
In many regions, excessive fluoride and excessive iodide coexist in groundwater, which may lead to biphasic hazards to human thyroid. To explore fluoride-induced thyroid cytotoxicity and the mechanism underlying the effects of excessive iodide on fluoride-induced cytotoxicity, a thyroid cell line (Nthy-ori 3-1) was exposed to excessive fluoride and/or excessive iodide. Cell viability, lactate dehydrogenase (LDH) leakage, reactive oxygen species (ROS) formation, apoptosis, and the expression levels of inositol-requiring enzyme 1 (IRE1) pathway-related molecules were detected. Fluoride and/or iodide decreased cell viability and increased LDH leakage and apoptosis. ROS, the expression levels of glucose-regulated protein 78 (GRP78), IRE1, C/EBP homologous protein (CHOP), and spliced X-box-binding protein-1 (sXBP-1) were enhanced by fluoride or the combination of the two elements. Collectively, excessive fluoride and excessive iodide have detrimental influences on human thyroid cells. Furthermore, an antagonistic interaction between fluoride and excessive iodide exists, and cytotoxicity may be related to IRE1 pathway-induced apoptosis.
Collapse
Affiliation(s)
- Hongliang Liu
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China; School of Public Health, Tianjin Medical University, 22 Qi Xiang Tai Road, Heping District, Tianjin 300070, PR China.
| | - Qiang Zeng
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Yushan Cui
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Linyu Yu
- School of Public Health, Tianjin Medical University, 22 Qi Xiang Tai Road, Heping District, Tianjin 300070, PR China
| | - Liang Zhao
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Changchun Hou
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Shun Zhang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Hubei, Wuhan 430030, PR China
| | - Lei Zhang
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Gang Fu
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin 300011, PR China
| | - Yeming Liu
- School of Public Health, Tianjin Medical University, 22 Qi Xiang Tai Road, Heping District, Tianjin 300070, PR China
| | - Chunyang Jiang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Hubei, Wuhan 430030, PR China
| | - Xuemin Chen
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Hubei, Wuhan 430030, PR China
| | - Aiguo Wang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Hubei, Wuhan 430030, PR China.
| |
Collapse
|
37
|
Kolypetri P, Carayanniotis G. Apoptosis of NOD.H2 h4 thyrocytes by low concentrations of iodide is associated with impaired control of oxidative stress. Thyroid 2014; 24:1170-8. [PMID: 24660772 PMCID: PMC4080865 DOI: 10.1089/thy.2013.0676] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Enhanced iodide intake in NOD.H2(h4) mice accelerates the incidence and severity of spontaneous autoimmune thyroiditis (SAT) via an unknown mechanism. A plausible hypothesis is that iodide-induced apoptosis of thyrocytes can create imbalances in antigenic load and/or disruption of immunoregulatory mechanisms that facilitate activation of autoreactive T cells in cervical lymph nodes draining the thyroid. METHODS We examined whether NOD.H2(h4) thyrocytes, exposed to low NaI concentrations in vitro, are more susceptible to apoptosis compared to thyrocytes from CBA/J mice, which are resistant to iodide-accelerated SAT (ISAT). We also looked, at the transcriptional level, for differential activation of genes involved in apoptosis or oxidative stress pathways that may account for potential differences in iodide-mediated apoptosis between NOD.H2(h4) and CBA/J thyrocytes. RESULTS We report that NOD.H2(h4) thyrocytes, cultured for 24 h at very low (4-8 μM) concentrations of NaI, exhibit high levels (40-55%) of apoptosis, as assessed microscopically following staining with fluorescent caspase inhibitors. Similar treatment of thyrocytes from CBA/J mice, which are resistant to ISAT, yielded significantly lower (10-20%) apoptotic rates. Expression analysis by real-time polymerase chain reaction using arrays of apoptosis- and oxidative stress-related genes showed that NaI intake upregulates the expression of 22 genes involved in ROS metabolism and/or antioxidant function in CBA/J thyrocytes, whereas only two of these genes were upregulated in NOD.H2(h4) thyrocytes. Among the set of overexpressed genes were those encoding thyroid peroxidase (Tpo; 5.77-fold), glutathione peroxidases (Gpx2, Gpx4, Gpx7; 2.03-3.14-fold), peroxiredoxins (Prdx1, Prdx2, Prdx5; 2.27-2.97-fold), superoxide dismutase 1 (Sod1; 3.57-fold), thioredoxin 1 (Txn1; 2.13-fold), and the uncoupling proteins 2 and 3 (Ucp2, Ucp3; 2.01-2.15-fold). CONCLUSIONS The results demonstrate that an impaired control of oxidative stress mechanisms is associated with the observed high susceptibility of NOD.H2(h4) thyrocytes to NaI-mediated apoptosis, and suggest a contributing factor for the development of ISAT in this strain.
Collapse
Affiliation(s)
- Panayota Kolypetri
- Divisions of Endocrinology and Biomedical Sciences, Faculty of Medicine, Memorial University of Newfoundland , St. John's, Canada
| | | |
Collapse
|
38
|
Prinzi N, Baldini E, Sorrenti S, De Vito C, Tuccilli C, Catania A, Carbotta S, Mocini R, Coccaro C, Nesca A, Bianchini M, De Antoni E, D’Armiento M, Ulisse S. Prevalence of breast cancer in thyroid diseases: results of a cross-sectional study of 3,921 patients. Breast Cancer Res Treat 2014; 144:683-8. [DOI: 10.1007/s10549-014-2893-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 12/22/2022]
|
39
|
Gutiérrez-Repiso C, Velasco I, Garcia-Escobar E, Garcia-Serrano S, Rodríguez-Pacheco F, Linares F, Ruiz de Adana MS, Rubio-Martin E, Garrido-Sanchez L, Cobos-Bravo JF, Priego-Puga T, Rojo-Martinez G, Soriguer F, García-Fuentes E. Does dietary iodine regulate oxidative stress and adiponectin levels in human breast milk? Antioxid Redox Signal 2014; 20:847-53. [PMID: 24001137 PMCID: PMC3910559 DOI: 10.1089/ars.2013.5554] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Little is known about the association between iodine and human milk composition. In this study, we investigated the association between iodine and different markers of oxidative stress and obesity-related hormones in human breast milk. This work is composed of two cross-sectional studies (in lactating women and in the general population), one prospective and one in vitro. In the cross-sectional study in lactating women, the breast milk iodine correlated negatively with superoxide dismutase (SOD), catalase, and glutathione peroxidase (GSH-Px) activities, and with adiponectin levels. An in vitro culture of human adipocytes with 1 μM potassium iodide (KI, dose similar to the human breast milk iodine concentration) produced a significant decrease in adiponectin, GSH-Px, SOD1, and SOD2 mRNA expression. However, after 2 months of treatment with KI in the prospective study, a positive correlation was found between 24-h urinary iodine and serum adiponectin. Our observations lead to the hypothesis that iodine may be a factor directly involved in the regulation of oxidative stress and adiponectin levels in human breast milk.
Collapse
Affiliation(s)
- Carolina Gutiérrez-Repiso
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Inés Velasco
- Unidad de Gestión Clínica Materno-Infantil, Hospital de Riotinto, Huelva, Spain
| | - Eva Garcia-Escobar
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Sara Garcia-Serrano
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Francisca Rodríguez-Pacheco
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Francisca Linares
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Maria Soledad Ruiz de Adana
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Elehazara Rubio-Martin
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Lourdes Garrido-Sanchez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Clínico Universitario Virgen de la Victoria, Málaga, Spain
- CIBER Fisiología de la Obesidad y Nutrición (CIBEROBN), Málaga, Spain
| | - Juan Francisco Cobos-Bravo
- Unidad de Gestión Clínica de Cirugia General, Digestiva y Transplantes, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
| | - Tatiana Priego-Puga
- Unidad de Gestión Clínica de Cirugia General, Digestiva y Transplantes, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
| | - Gemma Rojo-Martinez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
| | - Federico Soriguer
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), Málaga, Spain
- CIBER Fisiología de la Obesidad y Nutrición (CIBEROBN), Málaga, Spain
| | - Eduardo García-Fuentes
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Hospital Regional Universitario Carlos Haya, Málaga, Spain
- CIBER Fisiología de la Obesidad y Nutrición (CIBEROBN), Málaga, Spain
| |
Collapse
|
40
|
Aceves C, Anguiano B, Delgado G. The extrathyronine actions of iodine as antioxidant, apoptotic, and differentiation factor in various tissues. Thyroid 2013; 23:938-46. [PMID: 23607319 PMCID: PMC3752513 DOI: 10.1089/thy.2012.0579] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Seaweed is an important dietary component and a rich source of iodine in several chemical forms in Asian communities. Their high consumption of this element (25 times higher than in Western countries) has been associated with the low incidence of benign and cancerous breast and prostate disease in Japanese people. SUMMARY We review evidence showing that, in addition to being a component of the thyroid hormone, iodine can be an antioxidant as well as an antiproliferative and differentiation agent that helps to maintain the integrity of several organs with the ability to take up iodine. In animal and human studies, molecular iodine (I2) supplementation exerts a suppressive effect on the development and size of both benign and cancerous neoplasias. Investigations by several groups have demonstrated that these effects can be mediated by a variety of mechanisms and pathways, including direct actions, in which the oxidized iodine dissipates the mitochondrial membrane potential, thereby triggering mitochondrion-mediated apoptosis, and indirect effects through iodolipid formation and the activation of peroxisome proliferator-activated receptors type gamma, which, in turn, trigger apoptotic or differentiation pathways. CONCLUSIONS We propose that the International Council for the Control of Iodine Deficient Disorders recommend that iodine intake be increased to at least 3 mg/day of I2 in specific pathologies to obtain the potential extrathyroidal benefits described in the present review.
Collapse
Affiliation(s)
- Carmen Aceves
- Institute of Neurobiology, National Autonomous University of Mexico (UNAM), Juriquilla, Mexico.
| | | | | |
Collapse
|
41
|
Colin IM, Denef JF, Lengelé B, Many MC, Gérard AC. Recent insights into the cell biology of thyroid angiofollicular units. Endocr Rev 2013; 34:209-38. [PMID: 23349248 PMCID: PMC3610675 DOI: 10.1210/er.2012-1015] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 11/07/2012] [Indexed: 01/06/2023]
Abstract
In thyrocytes, cell polarity is of crucial importance for proper thyroid function. Many intrinsic mechanisms of self-regulation control how the key players involved in thyroid hormone (TH) biosynthesis interact in apical microvilli, so that hazardous biochemical processes may occur without detriment to the cell. In some pathological conditions, this enzymatic complex is disrupted, with some components abnormally activated into the cytoplasm, which can lead to further morphological and functional breakdown. When iodine intake is altered, autoregulatory mechanisms outside the thyrocytes are activated. They involve adjacent capillaries that, together with thyrocytes, form the angiofollicular units (AFUs) that can be considered as the functional and morphological units of the thyroid. In response to iodine shortage, a rapid expansion of the microvasculature occurs, which, in addition to nutrients and oxygen, optimizes iodide supply. These changes are triggered by angiogenic signals released from thyrocytes via a reactive oxygen species/hypoxia-inducible factor/vascular endothelial growth factor pathway. When intra- and extrathyrocyte autoregulation fails, other forms of adaptation arise, such as euthyroid goiters. From onset, goiters are morphologically and functionally heterogeneous due to the polyclonal nature of the cells, with nodules distributed around areas of quiescent AFUs containing globules of compact thyroglobulin (Tg) and surrounded by a hypotrophic microvasculature. Upon TSH stimulation, quiescent AFUs are activated with Tg globules undergoing fragmentation into soluble Tg, proteins involved in TH biosynthesis being expressed and the local microvascular network extending. Over time and depending on physiological needs, AFUs may undergo repetitive phases of high, moderate, or low cell and tissue activity, which may ultimately culminate in multinodular goiters.
Collapse
Affiliation(s)
- Ides M Colin
- Pôle de Morphologie, Institut de Recherche Expérimentale et Clinique, Secteur des Sciences de la Santé, Université Catholique de Louvain (UCL), UCL-5251, 52 Avenue E. Mounier, B-1200, Bruxelles, Belgium.
| | | | | | | | | |
Collapse
|
42
|
Miller AEM, Heyland A. Iodine accumulation in sea urchin larvae is dependent on peroxide. ACTA ACUST UNITED AC 2012; 216:915-26. [PMID: 23155081 DOI: 10.1242/jeb.077958] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Iodine has many important biological functions and its concentrations vary with the environment. Recent research has provided novel insights into iodine uptake mechanisms in marine bacteria and kelp through hydrogen peroxide-dependent diffusion (PDD). This mechanism is distinct from sodium-dependent mechanisms known from vertebrates. In vertebrates, iodine accumulates in the thyroid gland by the action of the apical iodide transporter (AIT) and the sodium/iodide symporter (NIS). Neither of these proteins has, thus far, been identified outside of the chordates, and PDD (as an iodine uptake mechanism) has never been studied in animals. Using (125)I as a marker for total iodine influx, we tested iodine uptake via sodium-dependent transport versus PDD in embryos and larvae of the sea urchin Strongylocentrotus purpuratus. We found that iodine uptake in S. purpuratus is largely independent of NIS/AIT. Instead, we found that uptake is dependent on the presence and production of hydrogen peroxide, indicating that sea urchin larvae use PDD as a mechanism for iodine acquisition. Our data, for the first time, provide conclusive evidence for this mechanism in an animal. Furthermore, our data provide preliminary evidence that sodium-dependent iodine uptake via active transporter proteins is a synapomorphy of vertebrates.
Collapse
Affiliation(s)
- Ashley E M Miller
- Department of Integrative Biology, College of Biological Science, The University of Guelph, Guelph, ON, Canada N1G 2W1
| | | |
Collapse
|
43
|
Stępniak J, Lewiński A, Karbownik-Lewińska M. Membrane lipids and nuclear DNA are differently susceptive to Fenton reaction substrates in porcine thyroid. Toxicol In Vitro 2012; 27:71-8. [PMID: 23022769 DOI: 10.1016/j.tiv.2012.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 09/13/2012] [Accepted: 09/14/2012] [Indexed: 01/19/2023]
Abstract
Fenton reaction (Fe(2+)+H(2)O(2) → Fe(3+)+()OH+OH(-)) is of special significance in the thyroid, as both substrates are indispensable for thyroid hormone synthesis, therefore being available presumably at high concentrations under physiological conditions. The study aimed at evaluation if both Fenton reaction substrates are required to induce oxidative damage to membrane lipids and nuclear DNA in porcine thyroid homogenates, and if these macromolecules are vulnerable to the same extent. Thyroid homogenates and nuclear DNA were incubated in the presence of H(2)O(2) and/or Fe(2+). Malondialdehyde+4-hydroxyalkenals (MDA+4-HDA) concentration (lipid peroxidation index) was measured spectrophotometrically, and 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) concentration (DNA damage index) by HPLC. Whereas Fenton reaction substrates, used separately, did not affect lipid peroxidation, they increased 8-oxodG level for the highest H(2)O(2) concentration (100mM) and in Fe(2+) concentration-dependent manner (300, 150, 30 and 15 μM). If Fe(2+) and H(2)O(2) were applied together, lipid peroxidation increased significantly, however without H(2)O(2) concentration- but with clear Fe(2+) concentration-dependent effect. Concerning DNA damage, Fe(2+) enhanced H(2)O(2) effect, whereas Fe(2+) concentration-dependent effect was not changed by H(2)O(2). Excess of exclusively one of Fenton reaction substrates is sufficient to induce oxidative DNA damage, but not lipid peroxidation, in porcine thyroid. Comparing to H(2)O(2), Fe(2+) seems to be a stronger damaging substrate.
Collapse
Affiliation(s)
- Jan Stępniak
- Department of Oncological Endocrinology, Medical University of Łódź, 7/9 Żeligowski St, 90-752 Łódź, Poland
| | | | | |
Collapse
|
44
|
Basu A, Drame A, Muñoz R, Gijsbers R, Debyser Z, De Leon M, Casiano CA. Pathway specific gene expression profiling reveals oxidative stress genes potentially regulated by transcription co-activator LEDGF/p75 in prostate cancer cells. Prostate 2012; 72:597-611. [PMID: 21796653 PMCID: PMC3227744 DOI: 10.1002/pros.21463] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Accepted: 06/29/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND Lens epithelium-derived growth factor p75 (LEDGF/p75) is a stress survival transcription co-activator and autoantigen that is overexpressed in tumors, including prostate cancer (PCa). This oncoprotein promotes resistance to cell death induced by oxidative stress and chemotherapy by mechanisms that remain unclear. To get insights into these mechanisms we identified candidate target stress genes of LEDGF/p75 using pathway-specific gene expression profiling in PCa cells. METHODS A "Human oxidative stress and antioxidant defense" qPCR array was used to identify genes exhibiting significant expression changes in response to knockdown or overexpression of LEDGF/p75 in PC-3 cells. Validation of array results was performed by additional qPCR and immunoblotting. RESULTS Cytoglobin (CYGB), Phosphoinositide-binding protein PIP3-E/IPCEF-1, superoxidase dismutase 3 (SOD3), thyroid peroxidase (TPO), and albumin (ALB) exhibited significant transcript down- and up-regulation in response to LEDGF/p75 knockdown and overexpression, respectively. CYGB gene was selected for further validation based on its emerging role as a stress oncoprotein in human malignancies. In light of previous reports indicating that LEDGF/p75 regulates peroxiredoxin 6 (PRDX6), and that PRDXs exhibit differential expression in PCa, we also examined the relationship between these proteins in PCa cells. Our validation data revealed that changes in LEDGF/p75 transcript and protein expression in PCa cells closely paralleled those of CYGB, but not those of the PRDXs. CONCLUSIONS Our study identifies CYGB and other genes as stress genes potentially regulated by LEDGF/p75 in PCa cells, and provides a rationale for investigating their role in PCa and in promoting resistance to chemotherapy- and oxidative stress-induced cell death.
Collapse
Affiliation(s)
- Anamika Basu
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Awa Drame
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Ruben Muñoz
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Rik Gijsbers
- Division of Molecular Medicine, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Zeger Debyser
- Division of Molecular Medicine, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Marino De Leon
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Carlos A. Casiano
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
- Department of Medicine, Loma Linda University Schoolof Medicine, Loma Linda, California
- Correspondence to: Carlos A. Casiano, Center for Health Disparities and Molecular Medicine, Loma Linda University School of Medicine, Loma Linda, CA 92350.
| |
Collapse
|
45
|
Yao X, Li M, He J, Zhang G, Wang M, Ma J, Sun Y, Zhang W, Li L. Effect of early acute high concentrations of iodide exposure on mitochondrial superoxide production in FRTL cells. Free Radic Biol Med 2012; 52:1343-52. [PMID: 22330063 DOI: 10.1016/j.freeradbiomed.2012.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 01/21/2012] [Accepted: 02/01/2012] [Indexed: 11/25/2022]
Abstract
Excessive oxidative stress has been suggested as one of the underlying mechanisms in the development of thyroid cytotoxicity. Although the involvement of mitochondria has been hypothesized, the effect of early acute high concentrations of iodide on mitochondrial superoxide production remains largely unknown, especially within a 24 h time frame. By using a novel fluorescent probe, MitoSOX Red, we demonstrated the concentration response and time-course response of KI-induced mitochondrial superoxide production in the Fischer rat thyroid cell line (FRTL). A strong increase of MitoSOX Red fluorescence intensity in FRTL cells can be seen at 2 h following high concentrations of iodide exposure. Besides, we indicated that 6-propyl-2-thiouracil (PTU, 300 μM), thyroid-stimulating hormone (TSH, 10 mU/ml), and perchlorate (KClO(4), 30 μM) can inhibit excessive iodide-induced strong mitochondrial superoxide production; however, diethyldithiocarbamic acid (DETC, 2 mM) can further increase excessive iodide-induced mitochondrial superoxide production. By using transmission electron microscopy (TEM), we noted accumulated myelinoid bodies with lipid droplets and numerous apoptotic nuclear bodies at 24 h in FRTL cells. In addition, we demonstrated a significant decrease in cytochrome c (cyt c) content in the mitochondria by enzyme linked immunosorbent assay (ELISA), and DNA fragments and significant increases in lactate dehydrogenase (LDH) activity were detected. We propose a sequence of events mediated by a strong mitochondrial superoxide production at 2 h, followed by lipid peroxidation, cell membrane damage with significant cyt c release, culminating in DNA fragmentation and apoptotic nuclear formation at 24 h, which may partly contribute to the underlying mechanisms of early acute iodide excess.
Collapse
Affiliation(s)
- Xiaomei Yao
- Department of Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China, 300070.
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Hardefeldt PJ, Eslick GD, Edirimanne S. Benign thyroid disease is associated with breast cancer: a meta-analysis. Breast Cancer Res Treat 2012; 133:1169-77. [PMID: 22434524 DOI: 10.1007/s10549-012-2019-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 03/02/2012] [Indexed: 11/25/2022]
Abstract
The controversial relationship between benign thyroid diseases and breast cancer (BC) has been investigated for over 50 years. Despite extensive population studies, the results as a whole have been inconsistent. The purpose of this study was to collate and analyse available data, calculating a pooled odds ratio (OR) of the risk of BC in patients diagnosed with benign thyroid diseases. Studies were obtained from a database search of MEDLINE, EMBASE, PubMed, Current Contents Connect and Google Scholar with additional cross checking of reference lists. Inclusion criteria required a confirmed diagnosis of a benign thyroid disease, reporting of an OR or data to calculate an OR (and 95% confidence interval, CI) and the use of an internal control group as the comparator. Collated data was assessed for heterogeneity and a pooled OR calculated. 28 studies were included in the meta-analysis. There was significant evidence of an increased risk of BC in patients with autoimmune thyroiditis, evident in a pooled OR 2.92 (95% CI 2.13-4.01). In addition, the results supported an increased risk associated with the presence of anti-thyroid antibodies (OR 2.02, 95% CI 1.63-2.50) and goitre (OR 2.26, 95% CI 1.39-3.69). Subgroup analysis of antibody presence revealed increased risk associated with both anti-TPO (OR 2.64, 95% CI 1.82-3.83) and anti-TG (2.71, 95% CI 1.58-4.69). Quantitative analysis of hypothyroidism and hyperthyroidism was not significant. While these results indicate an association between thyroid auto-immunity and BC, further prospective studies are required to definitively prove causality.
Collapse
Affiliation(s)
- Prue J Hardefeldt
- The Whiteley-Martin Research Centre, Discipline of Surgery, Sydney Medical School Nepean, Nepean Hospital, The University of Sydney, Level 5, South Block, PO Box 63, Penrith, NSW 2751, Australia.
| | | | | |
Collapse
|
47
|
Kandhro GA, Kazi TG, Sirajuddin, Kazi N, Afridi HI, Arain MB, Baig JA, Shah AQ, Wadhwa SK, Shah F. Comparison of urinary iodide determination in female thyroid patients by two techniques. RUSS J ELECTROCHEM+ 2011. [DOI: 10.1134/s1023193511120068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
48
|
Zhao SJ, Ye Y, Sun FJ, Tian EJ, Chen ZP. The impact of dietary iodine intake on lipid metabolism in mice. Biol Trace Elem Res 2011; 142:581-8. [PMID: 20652651 DOI: 10.1007/s12011-010-8767-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Accepted: 06/30/2010] [Indexed: 11/27/2022]
Abstract
The present study has been designed to investigate the impact of dietary iodine intake on lipid metabolism in mice, including iodine deficiency and iodine excess. Different amounts of iodine mixed in the drinking water were continuously administered to mice. The body weights and the levels of urinary iodine were measured 8 months after the treatment. Thyroid hormones in the serum were detected by chemiluminescence immunoassay. Serum total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol and low-density lipoprotein cholesterol (LDL-C) were determined enzymatically by automatic analyzer. Results showed that the urine iodine concentrations paralleled the amounts of iodine intakes. No statistical differences of body weights among different groups were found. The levels of thyroid hormones were dramatically decreased in iodine deficiency while no significant differences were found between iodine excess groups and normal iodine group. In iodine deficiency groups, the levels of TG, TC, and LDL were increased at varying degrees. In iodine excess groups, the levels of TG in the male mice and the levels of TC in the female mice were much lower than normal iodine group. In conclusion, dietary iodine intake may affect the metabolism of serum lipids. Hypothyroid function induced by iodine deficiency may be responsible for the changes of lipids. Higher iodine intake might benefit lipid metabolism.
Collapse
Affiliation(s)
- Shu-Jun Zhao
- Institute of Endocrinology, Tianjin Medical University, Tianjin, China.
| | | | | | | | | |
Collapse
|
49
|
Abstract
The trace element selenium (Se) occurs in the form of the amino acid selenocysteine in selenoproteins. Selenoproteins exerts multiple physiological effects in human health, many of which are related with regulation of reduction-oxidation processes. In fact, the selenoenzyme families of glutathione peroxidase (GPx) and thioredoxin reductase (TRx) display the ability to act as antioxidants, protecting cells from oxidative damage. Furthermore, another class of selenoproteins are the iodothyronine deiodinase enzymes (DIO), which catalyze the conversion of thyroxine (T4) in triiodothyronine (T3), then exerting a fine tuned control on thyroid hormones metabolism. Several studies have investigated the potential positive effects of Se supplementation in thyroid diseases, characterized by increased levels of hydrogen peroxide and free radicals, like autoimmune chronic thyroiditis. These studies have supplied evidences indicating that Se supplementation, maximizing the antioxidant enzymes activity, may reduce the thyroid inflammatory status. Then, it may be postulated that Se could play a therapeutical role in thyroid autoimmune diseases. Despite the fact that recent studies seem to be concordant about Se beneficial effects in decreasing thyroid peroxidase antibodies (TPOAb) titers and ameliorating the ultrasound echogenicity pattern, several doubts have to be still clarified, before advising Se supplementation in chronic autoimmune thyroiditis.
Collapse
Affiliation(s)
- Roberto Negro
- Department of Endocrinology, "V. Fazzi" Hospital, Lecce, Italy
| |
Collapse
|
50
|
Iodine intakes of 100-300 μg/d do not modify thyroid function and have modest anti-inflammatory effects. Br J Nutr 2011; 105:1783-90. [PMID: 21262066 DOI: 10.1017/s0007114510005568] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Little information is available as to whether doses of iodide similar to those recommended in clinical practice for the prevention of iodine deficiency in pregnant women affect thyroid function. The aim of the present study was to analyse whether doses of iodide can affect thyroid function in adults, and evaluate its effect on plasma markers of oxidative stress, inflammation and acute-phase proteins. A total of thirty healthy volunteers (ten men and twenty women) with normal thyroid function were randomly assigned to three groups (n 10). Each group received a daily dose of 100, 200 or 300 μg of iodide in the form of KI for 6 months. Free tetraiodothyronine (FT4) levels at day 60 of the study were higher in the groups treated with 200 and 300 μg (P = 0·01), and correlated with the increase in urinary iodine (r 0·50, P = 0·007). This correlation lost its significance after adjustment for the baseline FT4. The baseline urinary iodine and FT4 correlated positively with the baseline glutathione peroxidase. On day 60, urinary iodine correlated with C-reactive protein (r 0·461, P = 0·018), and free triiodothyronine correlated with IL-6 (r - 0·429, P = 0·025). On day 60, the changes produced in urinary iodine correlated significantly with the changes produced in α1-antitrypsin (r 0·475, P = 0·014) and ceruloplasmin (r 0·599, P = 0·001). The changes in thyroid-stimulating hormone correlated significantly with the changes in α1-antitrypsin (r - 0·521, P = 0·005) and ceruloplasmin (r - 0·459, P = 0·016). In conclusion, the administration of an iodide supplement between 100 and 300 μg/d did not modify thyroid function in a population with adequate iodine intake. The results also showed a slight anti-inflammatory and antioxidative action of iodide.
Collapse
|