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Fan J, Zhang T, Yu Y, Zhang B. Is serum zinc status related to gestational diabetes mellitus? A meta-analysis. MATERNAL AND CHILD NUTRITION 2021; 17:e13239. [PMID: 34350703 PMCID: PMC8476424 DOI: 10.1111/mcn.13239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 12/15/2022]
Abstract
Gestational diabetes mellitus (GDM) is a common medical disorder that begins during pregnancy. The present work aimed to investigate the relationship of maternal or foetal circulatory zinc levels with GDM. Related studies were retrieved against the PubMed/Medline, Web of Science, Scopus databases till July 2020. The overall effects were expressed as standard mean difference (SMD). Furthermore, the random effects model was used to assess the summarised risk ratios (SRRs) to determine the relationship between zinc and the risk of GDM. A total of 15 articles involving were retrieved for meta‐analysis; in the meantime, 4955 subjects including 1549 GDM cases were enrolled for quantitative analysis. Compared with normal control, GDM cases had decreased circulating zinc level on the whole, but the difference was not statistically significant (SMD = −0.40, 95%CI: −0.80 to −0.00, P = 0.05). Interestingly, upon subgroup analysis stratified by serum zinc content but not plasma zinc concentration, there was significant difference in zinc content between GDM cases and normal controls (SMD = −0.56; 95%CI: −1.07 to −0.04, P = 0.03). Meanwhile, subgroup analysis also revealed similar tendency among the Asians and during the 2nd trimester, but not among the Caucasians or during the 1st or 3rd trimester. Data extracted from four studies that compared pregnant women with GDM in the high level of zinc and GDM in the low level of zinc yielded an SRR of 0.929 (95%CI: 0.905–0.954). According to existing evidence, the serum zinc content decreases among GDM cases compared with subjects with no abnormality in glucose tolerance, in particular among the Asians and during the second trimester. Nonetheless, more well designed prospective study should be carried out for understanding the dynamic relationship of zinc level with the incidence of GDM.
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Affiliation(s)
- Jiehui Fan
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tingting Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yanchao Yu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bao Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
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Pal A, Squitti R, Picozza M, Pawar A, Rongioletti M, Dutta AK, Sahoo S, Goswami K, Sharma P, Prasad R. Zinc and COVID-19: Basis of Current Clinical Trials. Biol Trace Elem Res 2021; 199:2882-2892. [PMID: 33094446 PMCID: PMC7580816 DOI: 10.1007/s12011-020-02437-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/11/2020] [Indexed: 12/13/2022]
Abstract
Coronavirus disease-2019 (COVID-19) pandemic continues to threaten patients, societies, and economic and healthcare systems around the world. Like many other diseases, the host immune system determines the progress of COVID-19 and fatality. Modulation of inflammatory response and cytokine production using immunonutrition is a novel concept that has been applied to other diseases as well. Zinc, one of the anti-inflammatory and antioxidant micronutrient found in food with well-established role in immunity, is currently being used in some clinical trials against COVID-19. This review integrates the contemporary studies of role of zinc in antiviral immunity along with discussing its potential role against COVID-19, and ongoing COVID-19 clinical trials using zinc.
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Affiliation(s)
- Amit Pal
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Kalyani, West Bengal, 741245, India.
| | - Rosanna Squitti
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Mario Picozza
- Neuroimmunology Unit, IRCSS Fondazione Santa Lucia, 00143, Rome, Italy
| | - Anil Pawar
- Department of Zoology, DAV University, Jalandhar, Punjab, India
| | - Mauro Rongioletti
- Department of Laboratory Medicine, Research and Development Division, San Giovanni Calibita Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Atanu Kumar Dutta
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Kalyani, West Bengal, 741245, India
| | - Sibasish Sahoo
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Kalyani, West Bengal, 741245, India
| | - Kalyan Goswami
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Kalyani, West Bengal, 741245, India
| | - Praveen Sharma
- Department of Biochemistry, AIIMS, Jodhpur, Rajasthan, India
| | - Rajendra Prasad
- Department of Biochemistry, MM Institute of Medical Sciences and Research, Mullana, Ambala 133207, Haryana, India
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Aziz J, Rahman MT, Vaithilingam RD. Dysregulation of metallothionein and zinc aggravates periodontal diseases. J Trace Elem Med Biol 2021; 66:126754. [PMID: 33831799 DOI: 10.1016/j.jtemb.2021.126754] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/03/2021] [Accepted: 03/29/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Periodontitis (PD) is a multifaceted inflammatory disease connected to bacterial infection that results in the destruction of tooth supporting structures and eventually tooth loss. Given their involvement in infection and inflammation, both metallothionein (MT) and zinc (Zn) might play vital roles in the development and progression of PD. More specifically, both MT and Zn are heavily involved in regulating immune functions, controlling bacterial infection, balancing inflammatory responses, and reducing oxidative stress, all of which are associated with the pathogenesis of PD. OBJECTIVE This review paper will explore the physiological functions of MT and Zn and hypothesise how dysregulation could negatively affect periodontal health, leading to PD. FINDINGS Bacterial lipopolysaccharide (LPS) derived from periodontal pathogens, namely P. gingivalis initiates the acute phase response, thus upregulating the expression of MT which leads to the subsequent deficiency of Zn, a hallmark of periodontal disease. This deficiency leads to ineffective NETosis, increases the permeability of the gingival epithelium, and disrupts the humoral immune response, collectively contributing to PD. In addition, the presence of LPS in Zn deficient conditions favours M1 macrophage polarisation and maturation of dendritic cells, and also inhibits the anti-inflammatory activity of regulatory T cells. Collectively, these observations could theoretically give rise to the chronic inflammation seen in PD. CONCLUSION A disrupted MT and Zn homeostasis is expected to exert an adverse impact on periodontal health and contribute to the development and progression of PD.
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Affiliation(s)
- Jazli Aziz
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Dept. of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | | | - Rathna Devi Vaithilingam
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
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Asl SH, Nikfarjam S, Majidi Zolbanin N, Nassiri R, Jafari R. Immunopharmacological perspective on zinc in SARS-CoV-2 infection. Int Immunopharmacol 2021; 96:107630. [PMID: 33882442 PMCID: PMC8015651 DOI: 10.1016/j.intimp.2021.107630] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 02/06/2023]
Abstract
The novel SARS-CoV-2 which was first reported in China is the cause of infection known as COVID-19. In comparison with other coronaviruses such as SARS-CoV and MERS, the mortality rate of SARS-CoV-2 is lower but the transmissibility is higher. Immune dysregulation is the most common feature of the immunopathogenesis of COVID-19 that leads to hyperinflammation. Micronutrients such as zinc are essential for normal immune function. According to the assessment of WHO, approximately one-third of the world's society suffer from zinc deficiency. Low plasma levels of zinc are associated with abnormal immune system functions such as impaired chemotaxis of polymorphonuclear cells (PMNs) and phagocytosis, dysregulated intracellular killing, overexpression of the inflammatory cytokines, lymphopenia, decreased antibody production, and sensitivity to microbes especially viral respiratory infections. Zinc exerts numerous direct and indirect effects against a wide variety of viral species particularly RNA viruses. The use of zinc and a combination of zinc-pyrithione at low concentrations impede SARS-CoV replication in vitro. Accordingly, zinc can inhibit the elongation step of RNA transcription. Furthermore, zinc might improve antiviral immunity by up-regulation of IFNα through JAK/STAT1 signaling pathway in leukocytes. On the other hand, zinc supplementation might ameliorate tissue damage caused by mechanical ventilation in critical COVID-19 patients. Finally, zinc might be used in combination with antiviral medications for the management of COVID-19 patients. In the current review article, we review and discuss the immunobiological roles and antiviral properties as well as the therapeutic application of zinc in SARS-CoV-2 and related coronaviruses infections.
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Affiliation(s)
- Sima Heydarzadeh Asl
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.
| | - Sepideh Nikfarjam
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Naime Majidi Zolbanin
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran.
| | - Reza Nassiri
- Departments of Pharmacology and Community Medicine, Michigan State University, East Lansing, MI, USA.
| | - Reza Jafari
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran.
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Yaseen MO, Jamshaid H, Saif A, Hussain T. Immunomodulatory role and potential utility of various nutrients and dietary components in SARS-CoV-2 infection. INT J VITAM NUTR RES 2021; 92:35-48. [PMID: 34100300 DOI: 10.1024/0300-9831/a000715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recently, the outbreak of severe acute respiratory syndrome cornoavirus-2 (SARS-CoV-2), causing coronavirus disease 2019 (COVID-19), has become a great perturbation all around the globe and has many devastating effects on every aspect of life. Apart from the oxygen therapy and extracorporeal membrane oxygenation, Remdesivir and Dexamethasone have been proven to be efficacious against COVID-19, along with various vaccine candidates and monoclonal antibody cocktail therapy for Regeneron. All of these are currently at different stages of clinical trials. People with weak immunity are more prone to a severe infection of SARS-CoV-2. Therefore, early and judicious nutritional supplementation along with pharmacological treatment and clinician collaborations are critical in restituting the current situation. Nutritional supplements help in acquiring strong immunity to prevent the progression of disease any further. Vitamin C, vitamin D, selenium, zinc and many other nutritional and dietary supplements inhibit the production of inflammatory cytokines during a viral infection and prevents several unwanted symptoms of infection. Many dietary components like citrus fruits, black elderberry, ginger, and probiotics have the ability to attack viral replication. These supplements can also tame the overriding immune system during coronavirus infection. Keeping in view these facts, nutritional and dietary supplements can be used along with other management modalities. These nutritional and dietary supplements are potential candidates to curb the convulsive unfolding of novel COVID-19, in combination with other standard treatment protocols. In this review, various search engines were used to exploit available literature in order to provide a comprehensive review on nutritional and dietary supplements with respect to the viral infections. It will also provide a brief overview on some of the clinical trials that are in progress to assess the role of nutritional supplements, either alone or in combination with other pharmacological drugs, in fight against COVID-19.
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Affiliation(s)
- Muhammad Osama Yaseen
- Institute of Pharmaceutical Sciences, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Humzah Jamshaid
- Institute of Pharmaceutical Sciences, University of Veterinary & Animal Sciences, Lahore, Pakistan.,Department of Pharmacy, Quaid-e-Azam University, Islamabad, Pakistan
| | - Arifa Saif
- Institute of Pharmaceutical Sciences, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Talib Hussain
- Institute of Pharmaceutical Sciences, University of Veterinary & Animal Sciences, Lahore, Pakistan
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Afzali A, Goli S, Moravveji A, Bagheri H, Mirhosseini S, Ebrahimi H. The effect of zinc supplementation on fatigue among elderly community dwellers: A parallel clinical trial. Health Sci Rep 2021; 4:e301. [PMID: 34027128 PMCID: PMC8133867 DOI: 10.1002/hsr2.301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND AIMS Fatigue is one of the most common complaints of the elderly. This study was conducted to assess the effect of zinc supplements on fatigue among the elderly. METHODS This randomized clinical trial was conducted on 150 elderly aged ≥60 years who were recruited from the health centers (Kashan, Iran) with a convenience sampling method. Participants were allocated to intervention and control groups by block randomization. Participants in the intervention group received a daily dose of 30 mg of zinc supplement for 70 days; meanwhile, in the control group, no intervention was performed. The level of fatigue was measured by the multidimensional fatigue inventory before and after the intervention. Both groups were homogeneous in terms of demographic variables, fatigue, and serum zinc level before the intervention. The significance level was considered as 0.05 in all tests. RESULTS Zinc supplementation significantly reduced fatigue (mean difference: -10.41 vs 1.37, P < .001) and increased serum zinc level (mean difference: 14.22, vs -0.57, P < .001) compared to the control group. CONCLUSION Consumption of zinc supplements for the elderly is recommended to overcome fatigue.
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Affiliation(s)
- Abolfazl Afzali
- Student Research Committee, School of Nursing & MidwiferyShahroud University of Medical SciencesShahroudIran
| | - Shahrbanoo Goli
- Department of Epidemiology and Biostatistics, School of Public HealthShahroud University of Medical SciencesShahroudIran
| | - Alireza Moravveji
- Social Determinants of Health (SDH) Research CenterKashan University of Medical SciencesKashanIran
| | - Hossein Bagheri
- School of Nursing & MidwiferyShahroud University of Medical SciencesShahroudIran
| | - Seyedmohammad Mirhosseini
- Student Research Committee, School of Nursing and MidwiferyMashhad University of Medical SciencesMashhadIran
| | - Hossein Ebrahimi
- Center for Health Related Social and Behavioral Sciences ResearchShahroud University of Medical SciencesShahroudIran
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57
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Neuroinflammation in Alzheimer's Disease. Biomedicines 2021; 9:biomedicines9050524. [PMID: 34067173 PMCID: PMC8150909 DOI: 10.3390/biomedicines9050524] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/20/2021] [Accepted: 04/28/2021] [Indexed: 12/18/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease associated with human aging. Ten percent of individuals over 65 years have AD and its prevalence continues to rise with increasing age. There are currently no effective disease modifying treatments for AD, resulting in increasingly large socioeconomic and personal costs. Increasing age is associated with an increase in low-grade chronic inflammation (inflammaging) that may contribute to the neurodegenerative process in AD. Although the exact mechanisms remain unclear, aberrant elevation of reactive oxygen and nitrogen species (RONS) levels from several endogenous and exogenous processes in the brain may not only affect cell signaling, but also trigger cellular senescence, inflammation, and pyroptosis. Moreover, a compromised immune privilege of the brain that allows the infiltration of peripheral immune cells and infectious agents may play a role. Additionally, meta-inflammation as well as gut microbiota dysbiosis may drive the neuroinflammatory process. Considering that inflammatory/immune pathways are dysregulated in parallel with cognitive dysfunction in AD, elucidating the relationship between the central nervous system and the immune system may facilitate the development of a safe and effective therapy for AD. We discuss some current ideas on processes in inflammaging that appear to drive the neurodegenerative process in AD and summarize details on a few immunomodulatory strategies being developed to selectively target the detrimental aspects of neuroinflammation without affecting defense mechanisms against pathogens and tissue damage.
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Gasmi A, Tippairote T, Mujawdiya PK, Peana M, Menzel A, Dadar M, Benahmed AG, Bjørklund G. The microbiota-mediated dietary and nutritional interventions for COVID-19. Clin Immunol 2021; 226:108725. [PMID: 33845194 PMCID: PMC8032598 DOI: 10.1016/j.clim.2021.108725] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023]
Abstract
Worldwide, scientists are looking for specific treatment for COVID-19. Apart from the antiviral approach, the interventions to support healthy immune responses to the virus are feasible through diet, nutrition, and lifestyle approaches. This narrative review explores the recent studies on dietary, nutritional, and lifestyle interventions that influence the microbiota-mediated immunomodulatory effects against viral infections. Cumulative studies reported that the airway microbiota and SARS-CoV-2 leverage each other and determine the pathogen-microbiota-host responses. Cigarette smoking can disrupt microbiota abundance. The composition and diversification of intestinal microbiota influence the airway microbiota and the innate and adaptive immunity, which require supports from the balance of macro- and micronutrients from the diet. Colorful vegetables supplied fermentable prebiotics and anti-inflammatory, antioxidant phytonutrients. Fermented foods and beverages support intestinal microbiota. In sensitive individuals, the avoidance of the high immunoreactive food antigens contributes to antiviral immunity. This review suggests associations between airway and intestinal microbiota, antiviral host immunity, and the influences of dietary, nutritional, and lifestyle interventions to prevent the clinical course toward severe COVID-19.
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Affiliation(s)
- Amin Gasmi
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, Villeurbanne, France
| | - Torsak Tippairote
- Doctor of Philosophy Program in Nutrition, Faculty of Medicine, Ramathibodi Hospital and Institute of Nutrition, Mahidol University, Bangkok, Thailand; Thailand Institute for Functional Medicine, Bangkok, Thailand
| | | | | | | | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | | | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Mo i Rana, Norway.
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Mehrvar C, Deignan E, Hurtig M, Cohen G, Zalzal P, Safir O, Alhalawani A, Papini M, Towler MR. In vivo analysis of a proprietary glass-based adhesive for sternal fixation and stabilization using rabbit and sheep models. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:53. [PMID: 33914176 PMCID: PMC8084842 DOI: 10.1007/s10856-021-06527-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Wire cerclage remains the standard method of care for sternal fixation, following median sternotomy, despite being beset with complications. An emerging treatment option has been to augment the wires with an adhesive. A patented ionomeric glass (mole fraction: SiO2:0.48, ZnO:0.36, CaO:0.12, SrO:0.04) has been used to formulate GPC+, a glass polyalkenoate cement (GPC), by mixing it with poly(acrylic) acid (PAA) and de-ionized water. In a human cadaver study, this material, when applied with wire cerclage, was able to significantly reduce sternal instability. However, the material has yet to be tested in pertinent animal models. Here, after a series of physical and mechanical tests to confirm suitability of the experimental material for implantation, three samples of GPC+ were implanted in either the tibia or femur of three different rabbits, alongside sham defects, for two different time modalities. A further seven samples of GPC+ and one poly(methyl methacrylate) control (PMMA) were implanted in either the tibia or femur of two different sheep. The sheep containing the PMMA was sacrificed at 8 weeks and the other at 16 weeks, to evaluate time dependent biological response. Upon sacrifice, microCT images were acquired and histology slides prepared for analysis. All three GPC+ samples implanted in the rabbit model, for the two time modalities, were characterized by minimal bone resorption along with a mild inflammatory response. Five of the seven GPC+ materials implanted in the sheep model (all three implanted for 8 weeks and two of those implanted for 16 weeks) were associated with mild to moderate immune response, comparable to that observed with PMMA, as well as mild bone resorption. The remaining two GPC + materials (implanted in the sheep model for 16 weeks) exhibited no bone resorption or inflammatory response and appeared to stimulate increased bone density at the implant site. These results suggest that GPC + can be a viable bone adhesive for use in hard tissue applications such as sternal fixation and stabilization. Experiments performed to synthesize & test Sr-doped glass adhesive for sternal fixation. (1) Sr-doped ionomeric glass fired, ground down and mixed with aqueous polyacrylic acid to produce the adhesive. (2) Adhesive characterized and tested by a suite of laboratory-based tests to ensure suitability for implantation. (3) Adhesive implanted into a rabbit model (distal femur, 12 weeks post implantation) where micro-CT images confirmed an excellent bone/cement interface, no evidence of bone resorption and some bone remodelling. (4) Adhesive subsequently implanted into a sheep model; at 16-weeks, a continuous bone-adhesive interface is seen suggesting no bone resorption. There was an increase in the peri-implant radiodensity, suggesting enhanced mineral content of the bone surrounding the GPC+ implant.
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Affiliation(s)
- Cina Mehrvar
- Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria St, Toronto, ON, M5B 2K3, Canada
| | - Emily Deignan
- Ontario Veterinary College, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
| | - Mark Hurtig
- Ontario Veterinary College, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
| | - Gideon Cohen
- Division of Cardiac Surgery, Sunnybrook Hospital, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Paul Zalzal
- Oakville Trafalgar Memorial Hospital, 3001 Hospital Gate, Oakville, ON, L6M 0L8, Canada
- Faculty of Medicine, Department of Surgery, McMaster University, 1200 Main St W, Hamilton, ON, L8N 3Z5, Canada
| | - Oleg Safir
- Division of Orthopaedic Surgery, Mount Sinai Hospital, 600 University Ave, Toronto, ON, M5G 1X5, Canada
| | - Adel Alhalawani
- Department of Biomedical Engineering, The University of Akron, 302 E Buchtel Ave, Akron, OH, 44325, USA
| | - Marcello Papini
- Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria St, Toronto, ON, M5B 2K3, Canada
| | - Mark R Towler
- Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria St, Toronto, ON, M5B 2K3, Canada.
- Li Ka Shing Institute, St. Michael's Hospital, Bond Street, Toronto, ON, M5B1W8, Canada.
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Metallothioneins in Inflammatory Bowel Diseases: Importance in Pathogenesis and Potential Therapy Target. Can J Gastroenterol Hepatol 2021; 2021:6665697. [PMID: 33987146 PMCID: PMC8093040 DOI: 10.1155/2021/6665697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 04/10/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Immunological disorders, increased oxidative stress, and damage to the epithelial barrier play an important role in the pathogenesis of inflammatory bowel diseases (IBDs). In the treatment of patients with Crohn's disease (CD) and ulcerative colitis (UC), it is increasingly common to use biological drugs that selectively affect individual components of the inflammatory cascade. However, administering the medicines currently available does not always result in obtaining and maintaining remission, and it may also lead to the development of resistance to a given agent over time. Metallothioneins (MTs) belong to the group of low molecular weight proteins, which, among others, regulate the inflammation and homeostasis of heavy metals as well as participating in the regulation of the intensity of oxidative stress. The results of the studies conducted so far do not clearly indicate the role of MTs in the process of inflammation in patients with IBD. However, there are reports that suggest the possibility of using MTs as a potential target in the treatment of this group of patients.
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Zinc deficiency: its prevalence and relationship to renal function in Japan. Clin Exp Nephrol 2021; 25:771-778. [PMID: 33733330 DOI: 10.1007/s10157-021-02046-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/08/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Although zinc deficiency is common among dialyzed patients, its prevalence among non-dialyzed subjects and its relationship to renal function remain unclear. METHODS We selected 816 non-dialyzed subjects (495 males; mean age, 56 ± 18 years) who underwent measurement of serum zinc at Jikei University Hospital between April 2018 and March 2019 using the Standardized Structured Medical Information eXchange2 (SS-MIX2) system, a global standard in Japan that enables collection of structured medical records with automatic data transfer to a registry database system. A serum zinc level of 60-80 μg/dL was defined as marginal zinc deficiency and a level of < 60 μg/dL as absolute zinc deficiency. We investigated factors associated with serum zinc using multiple regression analysis. RESULTS Marginal and absolute zinc deficiency were present in 52.3% and 30.6% of subjects, respectively. Serum zinc levels tended to decrease with increasing stage of chronic kidney disease (CKD) (P = 0.051). Estimated glomerular filtration rate (eGFR) was not independently associated with serum zinc levels. Instead, serum albumin (t = 4.69, P < 0.01), hemoglobin (t = 2.54, P = 0.01) and mean corpuscular volume (MCV) (t = - 2.20, P = 0.03) were independently associated with serum zinc. In sensitivity analyses, serum zinc was not associated with either serum copper- or iron-related parameters. CONCLUSION This large-scale study clarified the prevalence of zinc deficiency among non-dialyzed Japanese subjects. In addition, eGFR was not independently associated with serum zinc, probably due to confounding factors, such as nutritional status and degree of anemia. Further investigations are needed to clarify the epidemiology of zinc deficiency and its associations with CKD.
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Bao G, Fan Q, Ge D, Wang K, Sun M, Zhang Z, Guo H, Yang H, He B, Zheng Y. In vitro and in vivo studies to evaluate the feasibility of Zn-0.1Li and Zn-0.8Mg application in the uterine cavity microenvironment compared to pure zinc. Acta Biomater 2021; 123:393-406. [PMID: 33460794 DOI: 10.1016/j.actbio.2020.12.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 12/21/2020] [Accepted: 12/31/2020] [Indexed: 10/22/2022]
Abstract
Significant advances have been achieved in the research evaluating Zn and its alloys as degradable metallic biomaterials mainly for application in bone and blood vessels. In the present study, the degradation behaviors of Zn-0.1Li and Zn-0.8Mg alloys in simulated uterine fluid (SUF) were systematically investigated for 300 days. In vitro viability assays were conducted in different uterine cells (HUSMCs, HEECs, and HESCs), and histological examination after the in vivo implantation into the uterine cavity was performed using pure Zn as control. The immersion test results indicated that both Zn-0.1Li and Zn-0.8Mg alloys exhibited better corrosion resistance than pure Zn, with Zn3(PO4)2⋅4H2O and CaZn2(PO4)2⋅2H2O being the main corrosion products detected in the SUF in addition to ZnO. The cell cytotoxicity assays revealed that Zn-0.1Li and Zn-0.8Mg exhibited better cytocompatibility than Zn. Moreover, the in vivo experiments demonstrated that the Zn-0.1Li and Zn-0.8Mg alloys induced less inflammation in the uterine tissue than pure Zn, with CaCO3 and Zn(HPO4)⋅3H2O being the major biocorrosion products in addition to ZnO. According to these results, zinc alloys appear to be suitable potential candidate materials for future intrauterine biomedical devices.
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Hayashi K, Kataoka H, Minami M, Ikedo T, Miyata T, Shimizu K, Nagata M, Yang T, Yamamoto Y, Yokode M, Miyamoto S. Association of zinc administration with growth suppression of intracranial aneurysms via induction of A20. J Neurosurg 2021; 134:992-998. [PMID: 32217803 DOI: 10.3171/2020.1.jns192047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/20/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Zinc is an essential micronutrient with multiple biological effects, including antiinflammation. Previously, the authors demonstrated that the pathogenesis of intracranial aneurysms (IAs) is strongly related to chronic inflammation. In this study, the authors investigated whether administration of zinc inhibits the growth of IAs in a rat model. METHODS The authors analyzed surgically induced IAs in Sprague-Dawley male rats, which were subsequently treated with intraperitoneal injections of zinc sulfate heptahydrate (ZnSO4; 3 mg/kg/day) or vehicle for 4 weeks. RESULTS Size and wall thickness ratios of experimentally induced IAs were assessed in both treatment groups after induction and in a control group. The effects of zinc administration in IAs were examined by immunohistochemistry and Western blotting. Zinc administration significantly suppressed aneurysm size and also preserved the internal elastic lumen. Administration of zinc significantly attenuated infiltration of macrophages into IAs. CONCLUSIONS Zinc treatment significantly increased expression of the antiinflammatory signaling protein A20, an inhibitor of the nuclear factor κB (NF-κB) pathway, in rat IAs. Zinc administration may prevent the growth of rat IAs by inducing A20-attributed inactivation of NF-κB signaling.
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Affiliation(s)
- Kosuke Hayashi
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Manabu Minami
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Taichi Ikedo
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Miyata
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Manabu Nagata
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tao Yang
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yu Yamamoto
- 1Department of Neurosurgery and
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Yokode
- 2Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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64
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Samad N, Sodunke TE, Abubakar AR, Jahan I, Sharma P, Islam S, Dutta S, Haque M. The Implications of Zinc Therapy in Combating the COVID-19 Global Pandemic. J Inflamm Res 2021; 14:527-550. [PMID: 33679136 PMCID: PMC7930604 DOI: 10.2147/jir.s295377] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/27/2021] [Indexed: 12/15/2022] Open
Abstract
The global pandemic from COVID-19 infection has generated significant public health concerns, both health-wise and economically. There is no specific pharmacological antiviral therapeutic option to date available for COVID-19 management. Also, there is an urgent need to discover effective medicines, prevention, and control methods because of the harsh death toll from this novel coronavirus infection. Acute respiratory tract infections, significantly lower respiratory tract infections, and pneumonia are the primary cause of millions of deaths worldwide. The role of micronutrients, including trace elements, boosted the human immune system and was well established. Several vitamins such as vitamin A, B6, B12, C, D, E, and folate; microelement including zinc, iron, selenium, magnesium, and copper; omega-3 fatty acids as eicosapentaenoic acid and docosahexaenoic acid plays essential physiological roles in promoting the immune system. Furthermore, zinc is an indispensable microelement essential for a thorough enzymatic physiological process. It also helps regulate gene-transcription such as DNA replication, RNA transcription, cell division, and cell activation in the human biological system. Subsequently, zinc, together with natural scavenger cells and neutrophils, are also involved in developing cells responsible for regulating nonspecific immunity. The modern food habit often promotes zinc deficiency; as such, quite a few COVID-19 patients presented to hospitals were frequently diagnosed as zinc deficient. Earlier studies documented that zinc deficiency predisposes patients to a viral infection such as herpes simplex, common cold, hepatitis C, severe acute respiratory syndrome coronavirus (SARS-CoV-1), the human immunodeficiency virus (HIV) because of reducing antiviral immunity. This manuscript aimed to discuss the various roles played by zinc in the management of COVID-19 infection.
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Affiliation(s)
- Nandeeta Samad
- Department of Public Health, North South University, Dhaka, 1229, Bangladesh
| | | | - Abdullahi Rabiu Abubakar
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Bayero University, Kano, 700233, Nigeria
| | - Iffat Jahan
- Department of Physiology, Eastern Medical College, Cumilla, Bangladesh
| | - Paras Sharma
- Department of Pharmacognosy, BVM College of Pharmacy, Gwalior, India
| | - Salequl Islam
- Department of Microbiology, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Siddhartha Dutta
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Mainul Haque
- The Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, Malaysia
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65
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Toledano M, Vallecillo-Rivas M, Aguilera FS, Osorio MT, Osorio E, Osorio R. Polymeric zinc-doped nanoparticles for high performance in restorative dentistry. J Dent 2021; 107:103616. [PMID: 33636241 DOI: 10.1016/j.jdent.2021.103616] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES The aim was to state the different applications and the effectiveness of polymeric zinc-doped nanoparticles to achieve dentin remineralization. DATA, SOURCES AND STUDY SELECTION Literature search was conducted using electronic databases, such as PubMed, MEDLINE, DIMDI, Embase, Scopus and Web of Science. A narrative exploratory review was undertaken. CONCLUSIONS Polymeric nanospheres (NPs) were efficiently loaded with zinc. NPs sequestered calcium and phosphate in the presence of silicon, and remained effectively embedded at the hybrid layer. NPs incorporation did not alter bond strength and inhibited MMP-mediated dentin collagen degradation. Zn-loaded NPs remineralized the hybrid layer inducing a generalized low-carbonate substitute apatite precipitation, chemically crystalline with some amorphous components, and an increase in mechanical properties was also promoted. Viscoelastic analysis determined that dentin infiltrated with Zn-NPs released the stress by breaking the resin-dentin interface and creating specific mineral formations in response to the energy dissipation. Bacteria were scarcely encountered at the resin-dentin interface. The combined antibacterial and remineralizing effects, when Zn-NPs were applied, reduced biofilm formation. Zn-NPs application at both cervical and radicular dentin attained the lowest microleakage and also promoted durable sealing ability. The new zinc-based salt minerals generated covered the dentin surface totally occluding cracks, porosities and dentinal tubules. CLINICAL SIGNIFICANCE Zinc-doped NPs are proposed for effective dentin remineralization and tubular occlusion. This offers new strategies for regeneration of eroded cervical dentin, effective treatment of dentin hypersensitivity and in endodontically treated teeth previous to the canal filling. Zn-NPs also do reduce biofilm formation due to antibacterial properties.
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Affiliation(s)
- Manuel Toledano
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain.
| | - Marta Vallecillo-Rivas
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain
| | - Fátima S Aguilera
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain
| | - María T Osorio
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain
| | - Estrella Osorio
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain
| | - Raquel Osorio
- University of Granada, Faculty of Dentistry, Dental Materials Section. Colegio Máximo de Cartuja s/n, Granada, 18071, Spain
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66
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Reda FM, El-Saadony MT, El-Rayes TK, Attia AI, El-Sayed SA, Ahmed SY, Madkour M, Alagawany M. Use of biological nano zinc as a feed additive in quail nutrition: biosynthesis, antimicrobial activity and its effect on growth, feed utilisation, blood metabolites and intestinal microbiota. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1886001] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Fayiz M. Reda
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Talaat K. El-Rayes
- Animal Production Department, Faculty of Agriculture, Tanta University, Tanta, Egypt
| | - Adel I. Attia
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Sabry A.A El-Sayed
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Sarah Y.A Ahmed
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mahmoud Madkour
- Animal Production Department, National Research Centre, Giza, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
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67
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Hajji M, Khedher R, Mrad M, Bassem HM, Rafrafi N, Chouchi S, Feki M, Bahlous A, Zouaghi K, Fellah H. Effects of Zinc supplementation on serum copper to Zinc and CRP to albumin ratios in hemodialysis patients. J Med Biochem 2021; 40:193-198. [PMID: 33776569 PMCID: PMC7982281 DOI: 10.5937/jomb0-26698] [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: 05/25/2020] [Accepted: 07/01/2020] [Indexed: 12/30/2022] Open
Abstract
Background Zinc (Zn) deficiency is a common condition and could contribute to poor outcomes in hemodialysis (HD) patients. The aim of this study was to evaluate the effects of Zn supplementation on serum copper (Cu) to Zn and C-reactive protein (CRP) to albumin ratios (CAR) in HD patients. Methods Seventy-seven HD patients were enrolled in a multicentre simple-blind randomized clinical trial. Only 37 HD patients completed the study; they were randomly divided into two groups and supplemented with zinc sulphate (n=17) or placebo (n=20) for two months. Serum Zn and Cu were measured by atomic absorption spectrophotometry. Serum albumin and hypersensitive-CRP were assessed by colorimetric and immunoturbidimetric method, respectively. Determinations were performed before and after supplementation. Results After two months of supplementation, serum Zn significantly increased, and Cu to Zn ratio decreased in Zn supplemented group, but remained unchanged in the placebo group. In parallel, serum albumin concentrations significantly increased, and CAR decreased in Zn supplemented group only. Conclusions Zn supplementation reduces Cu to Zn and CRP to albumin ratios in HD patients. These changes point towards an improvement in nutritional, oxidative and inflammatory status. The study findings suggest that correcting Zn deficiency reduces poor outcomes in HD patients.
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Affiliation(s)
- Marwa Hajji
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Laboratory of Biochemistry, Tunis, Tunisia
| | - Rania Khedher
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Department of Nephrology, Tunis, Tunisia
| | - Mehdi Mrad
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Pasteur Institute, Laboratory of Biochemistry, Tunis, Tunisia
| | - Hammami Mohamed Bassem
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Laboratory of Biochemistry, Tunis, Tunisia
| | | | | | - Moncef Feki
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Laboratory of Biochemistry, Tunis, Tunisia
| | - Afef Bahlous
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Pasteur Institute, Laboratory of Biochemistry, Tunis, Tunisia
| | - Karim Zouaghi
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Department of Nephrology, Tunis, Tunisia
| | - Hayet Fellah
- University of Tunis El Manar, Faculty of Medicine of Tunis, Tunis, Tunisia.,Rabta University Hospital, Laboratory of Biochemistry, Tunis, Tunisia
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68
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Jankovic-Karasoulos T, McAninch D, Dixon C, Leemaqz SYL, François M, Leifert WR, McCullough D, Ricciardelli C, Roberts CT, Bianco-Miotto T. The effect of zinc on human trophoblast proliferation and oxidative stress. J Nutr Biochem 2020; 90:108574. [PMID: 33388345 DOI: 10.1016/j.jnutbio.2020.108574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/26/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
Adequate Zinc (Zn) intake is required to prevent multiple teratogenic effects however deviations from adequate Zn intake, including high maternal Zn status, have been linked to increased incidence of pregnancy complications, including those associated with inadequate placentation. Using placental trophoblast HTR8/SVneo cells and first trimester human placental explants (n = 12), we assessed the effects of varying Zn concentrations on trophoblast proliferation, viability, apoptosis and oxidative stress. Compared to physiologically normal Zn levels (20 µM), HTR-8/SVneo cell proliferation index was significantly lower in the presence of physiologically elevated (40 µM; P = .020) and supra-physiological (80 µM; P = .007) Zn. The latter was also associated with reduced proliferation (P = .004) and viability (P < .0001) in cultured placental explants, but not apoptosis. Reactive oxygen species production in HTR8/SVneo cultures was significantly higher in the presence of 80 µM Zn compared to all physiologically relevant levels. Oxidative stress, induced by an oxidizing agent menadione, was further exacerbated by high (80 µM) Zn. Zn did not affect lipid peroxidation in either HTR8/SVneo cells or placental explants or antioxidant defense mechanisms that included glutathione reductase and superoxide dismutase. Further study should focus on elucidating mechanisms behind impaired trophoblast proliferation and increased oxidative stress as a result of elevated Zn levels.
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Affiliation(s)
- Tanja Jankovic-Karasoulos
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia; Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Dale McAninch
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Clare Dixon
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia; School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Shalem Y-L Leemaqz
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia; Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Maxime François
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, Australia; CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, Australia
| | - Wayne R Leifert
- CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, Australia; School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Dylan McCullough
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia; Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Carmela Ricciardelli
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Claire T Roberts
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia; Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.
| | - Tina Bianco-Miotto
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia; School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, Australia.
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69
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Nazir S, Tahir K, Irshad R, Khan QU, Khan S, Khan IU, Nawaz A, Rehman F. Photo-assisted inactivation of highly drug resistant bacteria and DPPH scavenging activities of zinc oxide graphted Pd-MCM-41 synthesized by new hydrothermal method. Photodiagnosis Photodyn Ther 2020; 33:102162. [PMID: 33373742 DOI: 10.1016/j.pdpdt.2020.102162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/01/2020] [Accepted: 12/21/2020] [Indexed: 11/18/2022]
Abstract
A major current biomedical challenge is to find materials that are specific, have high efficiency and with long lasting stability to serve as antimicrobial agents. In this contribution we examined new bifunctional nanostructural materials (ZnO/Pd-MCM-41) which were synthesized by a new hydrothermal procedure. To deposit active cites i.e. ZnO, a new protocol was followed in which catechol was used as a precipitating agent. Results indicated that nanostructures comprising palladium nanocrystals of a small size dispersed consistently within the hexagonal pores of the MCM-41 and also ZnO was successfully coated on mesoporous Pd-MCM-41 and that the mesoporous Pd-MCM-41 structure has been well-maintained upon modification of ZnO. The ZnO/Pd-MCM-41 is promising antibacterial agent and have efficient light inhibition activity towards Escherichia coli (E. coli), Psedomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus). The inhibition zone of irradiated ZnO/Pd-MCM-41 nanostructure against E. coli, P. aeruginosa and S. aureus were (17 ± 0.4) mm, 18 (±0.4) mm and 22 (±0.2) mm respectively while that in dark were (9 ± 0.5) mm, 11 (±0.3) mm and 13 (±0.4) mm respectively. The production of reactive oxygen species and hemolytic assay were also analyzed. Different parameters affecting the photo-inhibition efficiency of ZnO/Pd-MCM-41 were also studied. Likewise, the antioxidant activity of these nanostructures was studied against DPPH stabilization. Results indicated that the synthesized nanostructures are highly active and stabilized 99 % DPPH at very low concentration i.e. 1.4 mg/mL.
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Affiliation(s)
- Sadia Nazir
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Rabia Irshad
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Qudrat Ullah Khan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Shafiullah Khan
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan.
| | - Ismat Ullah Khan
- Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan
| | - Asif Nawaz
- Faculty of Pharmacy, Gomal University, D. I. Khan, KP, Pakistan
| | - Fazal Rehman
- Faculty of Pharmacy, Gomal University, D. I. Khan, KP, Pakistan
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70
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Rezzani R, Franco C, Hardeland R, Rodella LF. Thymus-Pineal Gland Axis: Revisiting Its Role in Human Life and Ageing. Int J Mol Sci 2020; 21:E8806. [PMID: 33233845 PMCID: PMC7699871 DOI: 10.3390/ijms21228806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/03/2020] [Accepted: 11/18/2020] [Indexed: 01/05/2023] Open
Abstract
For years the thymus gland (TG) and the pineal gland (PG) have been subject of increasingly in-depth studies, but only recently a link that can associate the activities of the two organs has been identified. Considering, on the one hand, the well-known immune activity of thymus and, on the other, the increasingly emerging immunological roles of circadian oscillators and the rhythmically secreted main pineal product, melatonin, many studies aimed to analyse the possible existence of an interaction between these two systems. Moreover, data confirmed that the immune system is functionally associated with the nervous and endocrine systems determining an integrated dynamic network. In addition, recent researches showed a similar, characteristic involution process both in TG and PG. Since the second half of the 20th century, evidence led to the definition of an effectively interacting thymus-pineal axis (TG-PG axis), but much has to be done. In this sense, the aim of this review is to summarize what is actually known about this topic, focusing on the impact of the TG-PG axis on human life and ageing. We would like to give more emphasis to the implications of this dynamical interaction in a possible therapeutic strategy for human health. Moreover, we focused on all the products of TG and PG in order to collect what is known about the role of peptides other than melatonin. The results available today are often unclear and not linear. These peptides have not been well studied and defined over the years. In this review we hope to awake the interest of the scientific community in them and in their future pharmacological applications.
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Affiliation(s)
- Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (C.F.); (L.F.R.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs-(ARTO)”, University of Brescia, 25123 Brescia, Italy
| | - Caterina Franco
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (C.F.); (L.F.R.)
| | - Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Lower Saxony, D-37073 Göttingen, Germany;
| | - Luigi Fabrizio Rodella
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (C.F.); (L.F.R.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs-(ARTO)”, University of Brescia, 25123 Brescia, Italy
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Ikizler TA, Burrowes JD, Byham-Gray LD, Campbell KL, Carrero JJ, Chan W, Fouque D, Friedman AN, Ghaddar S, Goldstein-Fuchs DJ, Kaysen GA, Kopple JD, Teta D, Yee-Moon Wang A, Cuppari L. KDOQI Clinical Practice Guideline for Nutrition in CKD: 2020 Update. Am J Kidney Dis 2020; 76:S1-S107. [PMID: 32829751 DOI: 10.1053/j.ajkd.2020.05.006] [Citation(s) in RCA: 796] [Impact Index Per Article: 199.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/29/2020] [Indexed: 12/14/2022]
Abstract
The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) has provided evidence-based guidelines for nutrition in kidney diseases since 1999. Since the publication of the first KDOQI nutrition guideline, there has been a great accumulation of new evidence regarding the management of nutritional aspects of kidney disease and sophistication in the guidelines process. The 2020 update to the KDOQI Clinical Practice Guideline for Nutrition in CKD was developed as a joint effort with the Academy of Nutrition and Dietetics (Academy). It provides comprehensive up-to-date information on the understanding and care of patients with chronic kidney disease (CKD), especially in terms of their metabolic and nutritional milieu for the practicing clinician and allied health care workers. The guideline was expanded to include not only patients with end-stage kidney disease or advanced CKD, but also patients with stages 1-5 CKD who are not receiving dialysis and patients with a functional kidney transplant. The updated guideline statements focus on 6 primary areas: nutritional assessment, medical nutrition therapy (MNT), dietary protein and energy intake, nutritional supplementation, micronutrients, and electrolytes. The guidelines primarily cover dietary management rather than all possible nutritional interventions. The evidence data and guideline statements were evaluated using Grading of Recommendations, Assessment, Development and Evaluation (GRADE) criteria. As applicable, each guideline statement is accompanied by rationale/background information, a detailed justification, monitoring and evaluation guidance, implementation considerations, special discussions, and recommendations for future research.
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Nasiadek M, Stragierowicz J, Klimczak M, Kilanowicz A. The Role of Zinc in Selected Female Reproductive System Disorders. Nutrients 2020; 12:E2464. [PMID: 32824334 PMCID: PMC7468694 DOI: 10.3390/nu12082464] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
Zinc is an essential microelement that plays many important functions in the body. It is crucial for the regulation of cell growth, hormone release, immunological response and reproduction. This review focuses on its importance in the reproductive system of women of reproductive and postmenopausal ages, not including its well described role in pregnancy. Only recently, attention has been drawn to the potential role of zinc in polycystic ovary syndrome (PCOS), dysmenorrhea, or endometriosis. This review is mainly based on 36 randomized, controlled studies on reproductive, pre- and post-menopausal populations of women and on research trying to explain the potential impact of zinc and its supplementation in the etiology of selected female reproductive system disorders. In women with PCOS, zinc supplementation has a positive effect on many parameters, especially those related to insulin resistance and lipid balance. In primary dysmenorrhea, zinc supplementation before and during each menstrual cycle seems to be an important factor reducing the intensity of menstrual pain. On the other hand, little is known of the role of zinc in endometriosis and in postmenopausal women. Therefore, further studies explaining the potential impact of zinc and its supplementation on female reproductive system would be highly advisable and valuable.
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Affiliation(s)
- Marzenna Nasiadek
- Department of Toxicology, Medical University of Lodz, Muszyńskiego 1, 90-151 Lodz, Poland; (J.S.); (M.K.)
| | | | | | - Anna Kilanowicz
- Department of Toxicology, Medical University of Lodz, Muszyńskiego 1, 90-151 Lodz, Poland; (J.S.); (M.K.)
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Liu X, Wang J, Zhou M, Dai Q, Wang Q, Li H, Qian X. Particulate matter exposure disturbs inflammatory cytokine homeostasis associated with changes in trace metal levels in mouse organs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 727:138377. [PMID: 32330707 DOI: 10.1016/j.scitotenv.2020.138377] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 03/24/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Few studies have focused on the impact of particulate matter (PM) exposure with respect to the relationship between PM-induced inflammation and the levels of trace metals in tissues and organs. In this study, C57BL/6 male mice were exposed to ambient air alongside control mice breathing air filtered through a high-efficiency particulate air (HEPA) filter. In both groups, mRNA levels of pro- and anti-inflammatory cytokines were measured after 4, 8 and 12 weeks together with the trace metal contents of the lungs, heart, liver, hippocampus and blood. PM exposure resulted in a general upward trend in the levels of pro-inflammatory cytokines in lung, heart, liver and hippocampus. By contrast, IL-10 mRNA expression varied depending on the organ, with a continuous upward trend in heart and liver and an up-regulation at 8 weeks followed by a down-regulation at 12 weeks in lung and hippocampus. The disturbed homeostasis of inflammatory cytokines was accompanied by changes in trace metal levels in the mice. These alterations may have constituted a compensatory effect conferring protection from inflammatory damage. However, prolonged PM exposure finally resulted in the deficiency of several essential trace metals in the lungs and hippocampus, which may have contributed to the observed histological changes typical of an inflammatory response.
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Affiliation(s)
- Xuemei Liu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, China; Huaiyin Institute of Technology, School of the Chemical Engineering, Huaian, China
| | - Jinhua Wang
- School of Environmental and Energy Engineering, Key Laboratory of Anhui Province of Water Pollution Control and Wastewater Reuse, Anhui Jianzhu University, HeFei, China
| | - Mengfan Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Qian'ying Dai
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Qin'geng Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, China; Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing, China
| | - Huiming Li
- School of Environment, Nanjing Normal University, Nanjing, China.
| | - Xin Qian
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, China; Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing, China.
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DeBenedictis CA, Raab A, Ducie E, Howley S, Feldmann J, Grabrucker AM. Concentrations of Essential Trace Metals in the Brain of Animal Species-A Comparative Study. Brain Sci 2020; 10:E460. [PMID: 32709155 PMCID: PMC7407190 DOI: 10.3390/brainsci10070460] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 12/29/2022] Open
Abstract
The essential trace metals iron, zinc, and copper have a significant physiological role in healthy brain development and function. Especially zinc is important for neurogenesis, synaptogenesis, synaptic transmission and plasticity, and neurite outgrowth. Given the key role of trace metals in many cellular processes, it is important to maintain adequate levels in the brain. However, the physiological concentration of trace metals, and in particular zinc, in the human and animal brain is not well described so far. For example, little is known about the trace metal content of the brain of animals outside the class of mammals. Here, we report the concentration of iron, zinc, and copper in fresh brain tissue of different model-species of the phyla Chordata (vertebrates (mammals, fish)), Annelida, Arthropoda (insects), and Mollusca (snails), using inductively coupled plasma mass-spectrometry (ICP-MS). Our results show that the trace metals are present in the nervous system of all species and that significant differences can be detected between species of different phyla. We further show that a region-specific distribution of metals within the nervous system already exists in earthworms, hinting at a tightly controlled metal distribution. In line with this, the trace metal content of the brain of different species does not simply correlate with brain size. We conclude that although the functional consequences of the controlled metal homeostasis within the brain of many species remains elusive, trace metal biology may not only play an important role in the nervous system of mammals but across the whole animal kingdom.
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Affiliation(s)
- Chiara Alessia DeBenedictis
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.); (E.D.); (S.H.)
- Bernal Institute, University of Limerick, V94T9PX Limerick, Ireland
| | - Andrea Raab
- Trace Element Speciation Laboratory (TESLA), Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK; (A.R.); (J.F.)
- Institute of Chemistry, University of Graz, A-8010 Graz, Austria
- Institute of Chemistry, Environmental Analytical Chemistry, University of Graz, 8010 Graz, Austria
| | - Ellen Ducie
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.); (E.D.); (S.H.)
| | - Shauna Howley
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.); (E.D.); (S.H.)
| | - Joerg Feldmann
- Trace Element Speciation Laboratory (TESLA), Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK; (A.R.); (J.F.)
- Institute of Chemistry, University of Graz, A-8010 Graz, Austria
- Institute of Chemistry, Environmental Analytical Chemistry, University of Graz, 8010 Graz, Austria
| | - Andreas Martin Grabrucker
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.); (E.D.); (S.H.)
- Bernal Institute, University of Limerick, V94T9PX Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94T9PX Limerick, Ireland
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75
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Wang S, Nie P, Lu X, Li C, Dong X, Yang F, Luo P, Li B. Nrf2 participates in the anti-apoptotic role of zinc in Type 2 diabetic nephropathy through Wnt/β-catenin signaling pathway. J Nutr Biochem 2020; 84:108451. [PMID: 32795642 DOI: 10.1016/j.jnutbio.2020.108451] [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: 11/28/2019] [Revised: 04/11/2020] [Accepted: 05/27/2020] [Indexed: 12/13/2022]
Abstract
Zinc (Zn), as an essential trace element, has been approved to serve many roles in diabetic studies. Also Zn deficiency will aggravate renal damage in diabetes through suppression of nuclear factor-erythroid 2-related factor 2 (Nrf2) expression and function. The purpose of this study was to illustrate the role of Zn in renal apoptosis in diabetes and whether Nrf2 participated in the process. Type 2 diabetes mice model was induced by a single dose of streptozotocin (STZ) injection after high-fat diet (HFD) feeding for 3 months, then the mice were given diets supplemented with different concentrations of Zn (control, 30 ppm; low-concentration, 0.85 ppm). After 12-week treatment, morphology and associated protein expressions were examined. The results showed that low Zn diet significantly aggravated the level of renal apoptosis during diabetes, performed as the upregulation of caspase-3 expression. In addition, either low Zn diet or diabetes or both dramatically decreased the expression of Nrf2 and P-AKT in kidney. Moreover, the expression of β-catenin in kidney was increased markedly in diabetic groups. Mechanistic study applying human renal tubular epithelial cells (HK11) confirmed the role of Nrf2, as silencing Nrf2 expression abolished Zn supplementation protection against high sugar + high fat + low Zn-induced apoptosis and downregulation of β-catenin expression. All these results suggest that Nrf2 plays a key role in Zn protection against Type 2 diabetes induced renal apoptosis, which might be through Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Songyan Wang
- Department of Nephropathy, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China; Department of Nephropathy, Jilin Province People's Hospital, 1183 Gongnong Road, Changchun 130021, China.
| | - Ping Nie
- Department of Nephropathy, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China.
| | - Xiaodan Lu
- Diagnostics Medical Center, Jilin Province People's Hospital, 1183 Gongnong Road, Changchun 130021, China.
| | - Chunguang Li
- Department of Surgery, Changchun Traditional Chinese Medicine Hospital, 1913 Taibei Street, Changchun 130000, China.
| | - Xiaoming Dong
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China.
| | - Fan Yang
- Department of Nephropathy, Jilin Province People's Hospital, 1183 Gongnong Road, Changchun 130021, China.
| | - Ping Luo
- Department of Nephropathy, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China.
| | - Bing Li
- Department of Nephropathy, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China.
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76
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Hafez A, Nassef E, Fahmy M, Elsabagh M, Bakr A, Hegazi E. Impact of dietary nano-zinc oxide on immune response and antioxidant defense of broiler chickens. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:19108-19114. [PMID: 30715696 DOI: 10.1007/s11356-019-04344-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/22/2019] [Indexed: 05/21/2023]
Abstract
This study aimed to elucidate the response of broiler chickens to the dietary nano-zinc supplementation in terms of immune response and antioxidant activity. Ninety-one-day-old chicks (Ross 308) were randomly assigned to one of three dietary treatments in three replicates, in a feeding trial that lasted for 5 weeks. Birds were fed a basal diet supplemented with inorganic zinc oxide at 40 mg/kg diet (control), zinc oxide nanoparticles (ZnONPs) at 40 mg/kg diet (ZN1), or ZnONPs at 80 mg/kg diet (ZN2). Birds were injected with DNP-KLH at the 7th and 21st days from the beginning of the experiment, and blood samples were collected on days 7, 14, 21, 28, and 35 to determine the levels of immunoglobulin Y (IgY) and malondialdehyde as well as the antioxidant enzyme activities. Cellular immunity was assayed by estimation of phagocytic percentage and index of peripheral monocytes of blood and estimation of the T lymphocyte activity using a lymphocyte transformation test. The results showed that feeding broiler chickens a diet supplemented with ZnONPs increased (p < 0.05) the activity of superoxide dismutase and catalase and decreased the concentration of malondialdehyde compared to the control diet, without significant differences between NZ1 and NZ2 diets. Moreover, the chicks fed diets supplemented with ZnONPs showed a significant increase (p < 0.05) in serum IgY, total lymphocyte count, and macrophages compared to the control. A higher significant response for antibodies IgY concentration was observed in birds fed the NZ2 vs NZ1 diet. Also, there was a significant increase in phagocytic activity and phagocytic index in ZnONP-fed groups with a higher significance in the group fed NZ1 than with NZ2 diet as compared with the control. In conclusion, ZnONP application up to 80 mg/kg in the diet is safe for broiler chickens and could improve their antioxidant defense and cellular immunity.
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Affiliation(s)
- Azza Hafez
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Eldsokey Nassef
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Mohamed Fahmy
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Mabrouk Elsabagh
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Abdelnasser Bakr
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
| | - Elsayed Hegazi
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt
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77
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Hoang BX, Hoang HQ, Han B. Zinc Iodide in combination with Dimethyl Sulfoxide for treatment of SARS-CoV-2 and other viral infections. Med Hypotheses 2020; 143:109866. [PMID: 32473509 PMCID: PMC7245270 DOI: 10.1016/j.mehy.2020.109866] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/04/2020] [Accepted: 05/21/2020] [Indexed: 12/16/2022]
Abstract
Zinc Iodide and Dimethyl Sulfoxide compositions are proposed as therapeutic agents to treat and prevent chronic and acute viral infections including SARS-CoV-2 infected patients. The therapeutic combinations have a wide range of virucidal effects on DNA and RNA containing viruses. The combinations also exhibit anti-inflammatory, immunomodulating, antifibrotic, antibacterial, antifungal and antioxidative effects. Given the fact that Zinc Iodide has been used as an oral antiseptic agent and DMSO has been already proven as a safe pharmaceutical solvent and therapeutic agent, we hypothesize that the combination of these two agents can be applied as an effective, safe and inexpensive treatment for SARS-CoV-2 and other viral infection. The therapeutic compound can be applied as both etiological and pathogenesis therapy and used as an effective and safe antiseptic (disinfectant) for human and animals as well.
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Affiliation(s)
- Ba X Hoang
- Nimni-Cordoba Tissue Engineering and Drug Discovery Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, 1333 San Pablo Street, BMT-302, Los Angeles, CA 90033, USA.
| | - Huy Q Hoang
- Natural Health Medical Center, 4469 Redondo Beach Boulevard, Lawndale 90260, CA, USA
| | - Bo Han
- Nimni-Cordoba Tissue Engineering and Drug Discovery Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, 1333 San Pablo Street, BMT-302, Los Angeles, CA 90033, USA
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78
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Dietary Antioxidant Intake and Human Papillomavirus Infection: Evidence from a Cross-Sectional Study in Italy. Nutrients 2020; 12:nu12051384. [PMID: 32408636 PMCID: PMC7284420 DOI: 10.3390/nu12051384] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/27/2020] [Accepted: 05/07/2020] [Indexed: 12/13/2022] Open
Abstract
Several lines of evidence suggested that antioxidants might play a protective role against high-risk human papillomavirus (hrHPV) infection and cervical cancer. However, the effect of combined intake of antioxidants has not been investigated thus far. The current cross-sectional study aimed to understand the relationship between dietary antioxidant intake and the risk of high-risk HPV (hrHPV) infection among 251 Italian women with normal cervical cytology. Women were tested for hrHPV using the Digene HC2 HPV DNA Test. Dietary antioxidant intakes were assessed using a semi-quantitative food frequency questionnaire, and a Composite Dietary Antioxidant Index (CDAI) was constructed on the basis of zinc, selenium, manganese, vitamin A, vitamin C, vitamin E, carotenoid, and flavonoid intake. Logistic regression analysis was used to assess odds ratio (OR) and 95% confidence interval (95% CI) for the associations of antioxidant intakes or CDAI with hrHPV status, adjusting for age, smoking status, body mass index, parity, educational level, marital status, and use of multivitamins and oral contraceptives. We first observed that hrHPV-positive women (n = 84) reported lower intake of zinc, manganese, and vitamins A and C than non-infected women. Specifically, we found a negative association between dietary intake of zinc and hrHPV-positive status when all antioxidants were considered simultaneously (OR = 0.46; 95% CI = 0.27–0.80; p = 0.006). With respect to cumulative dietary antioxidant intake, we demonstrated that women with high CDAI (third tertile) had lower odds of being hrHPV-positive than those with low CDAI (first tertile) (OR = 0.39; 95% CI = 0.18–0.85; p = 0.018). To our knowledge, this is the first study demonstrating that a diet based on the combined intake of nutrients with antioxidant properties might reduce the risk of hrHPV infection. However, further research is needed to understand whether dietary antioxidant intake is associated with hrHPV infection or its persistence.
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79
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Choi BY, Jeong JH, Eom JW, Koh JY, Kim YH, Suh SW. A Novel Zinc Chelator, 1H10, Ameliorates Experimental Autoimmune Encephalomyelitis by Modulating Zinc Toxicity and AMPK Activation. Int J Mol Sci 2020; 21:ijms21093375. [PMID: 32397660 PMCID: PMC7247014 DOI: 10.3390/ijms21093375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 11/24/2022] Open
Abstract
Previous studies in our lab revealed that chemical zinc chelation or zinc transporter 3 (ZnT3) gene deletion suppresses the clinical features and neuropathological changes associated with experimental autoimmune encephalomyelitis (EAE). In addition, although protective functions are well documented for AMP-activated protein kinase (AMPK), paradoxically, disease-promoting effects have also been demonstrated for this enzyme. Recent studies have demonstrated that AMPK contributes to zinc-induced neurotoxicity and that 1H10, an inhibitor of AMPK, reduces zinc-induced neuronal death and protects against oxidative stress, excitotoxicity, and apoptosis. Here, we sought to evaluate the therapeutic efficacy of 1H10 against myelin oligodendrocyte glycoprotein 35-55-induced EAE. 1H10 (5 μg/kg) was intraperitoneally injected once per day for the entire experimental course. Histological evaluation was performed three weeks after the initial immunization. We found that 1H10 profoundly reduced the severity of the induced EAE and that there was a remarkable suppression of demyelination, microglial activation, and immune cell infiltration. 1H10 also remarkably inhibited EAE-associated blood-brain barrier (BBB) disruption, MMP-9 activation, and aberrant synaptic zinc patch formation. Furthermore, the present study showed that long-term treatment with 1H10 also reduced the clinical course of EAE. Therefore, the present study suggests that zinc chelation and AMPK inhibition with 1H10 may have great therapeutic potential for the treatment of multiple sclerosis.
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Affiliation(s)
- Bo Young Choi
- Department of Physiology, Hallym University College of Medicine, Chuncheon 24252, Korea; (B.Y.C.); (J.H.J.)
| | - Jeong Hyun Jeong
- Department of Physiology, Hallym University College of Medicine, Chuncheon 24252, Korea; (B.Y.C.); (J.H.J.)
| | - Jae-Won Eom
- Department of Molecular Biology, Sejong University, Seoul 05006, Korea; (J.-W.E.); (Y.-H.K.)
| | - Jae-Young Koh
- Department of Neurology, University of Ulsan College of Medicine, Seoul 138-736, Korea;
| | - Yang-Hee Kim
- Department of Molecular Biology, Sejong University, Seoul 05006, Korea; (J.-W.E.); (Y.-H.K.)
| | - Sang Won Suh
- Department of Physiology, Hallym University College of Medicine, Chuncheon 24252, Korea; (B.Y.C.); (J.H.J.)
- Correspondence: ; Tel.: +82-10-8573-6364
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80
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Abstract
Background Alterations in serum levels of trace elements reported in type 2 diabetes mellitus (T2DM) have been linked with induction of T2DM and associated complications. Objectives To assess serum levels of copper (Cu), zinc (Zn) and selenium (Se) in T2DM patients with adequate and poor glycemic control. Patients and methods This study was performed at King Khalid University Hospital, Riyadh. A total of 100 consenting T2DM patients comprising of 50 patients with glycated hemoglobin (HbA1c) less than 6.5% and 50 patients with HbA1c more than 6.5% along with a group of 50 normal healthy individuals were included in the study. Serum levels of Cu, Zn and Se were measured by inductively coupled plasma-mass spectrometry (ICP-MS) instrument. Results Among T2DM patients with HbA1c <6.5%, mean serum Cu levels (13.4+4.3µmol/L) were not different from the controls (14.5+1.92µmol/L) whereas Zn (9.9+2.7µmol/Lvs15+3.2µmol/L;p<0.0001) and Se levels (1+0.2µmol/Lvs1.62+0.2µmol/L; p<0.0004) were lower than the controls. Among T2DM patients with HbA1c >6.5% mean serum Cu (18.1+4.1µmol/Lvs14.5+1.9µmol/L; p<0.0001), Zn (15+3.2µmol/Lvs13.5+1.9µmol/L; p<0.009) and Se (1.62+0.2µmol/Lvs1.17+0.16µmol/L;p<0.0001) were significantly higher than the controls. HbA1c% negatively correlated with HbA1c >6.5% (r = -0.302; p<0.03). Conclusion Cu, Zn and Se homeostasis was altered in T2DM patients and varied with glycemic control.
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Affiliation(s)
- Rana Mw Hasanato
- Department of Pathology, College of Medicine and University Hospitals, King Saud University, Riyadh, Kingdom of Saudi Arabia
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81
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Saei Ghare Naz M, Kiani Z, Rashidi Fakari F, Ghasemi V, Abed M, Ozgoli G. The Effect of Micronutrients on Pain Management of Primary Dysmenorrhea: a Systematic Review and Meta-Analysis. J Caring Sci 2020; 9:47-56. [PMID: 32296659 PMCID: PMC7146731 DOI: 10.34172/jcs.2020.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 01/21/2019] [Indexed: 12/29/2022] Open
Abstract
Introduction: Primary dysmenorrhea is considered as one of the main problems in women. This review study aimed to characterize the effect of micronutrients on primary dysmenorrhea. Methods: In this systematic and meta‐analysis study, the articles were searched at Cochrane library, PubMed, Scopus, Web of Science databases. The searching process was conducted with the key terms related to dysmenorrhea and micronutrients. Risk of bias assessment was performed, using Rev Man 5.3 software. In view of the heterogeneity of some of the studies, they were analyzed, using a qualitative method (n=10), and only 6 studies were included in Meta analyze. STATA statistical software version 11 was used for the analysis. Results: In this study, finally 16 clinical trials were investigated. Most micronutrients studied in the relevant articles had anti-inflammatory and analgesic properties with a desirable effect on dysmenorrhea pain relief. Vitamins (K, D, B1, and E) and calcium, magnesium, zinc sulfate and boron contributed effectively to dysmenorrhea pain management. Two months after the intervention, there was a significant mean decrease in the pain score for the vitamin D intervention group (SMD: -1.02, 95% CI: -1.9 to – 0.14, P =0.024) , as well as in the vitamin E intervention group compared to placebo group (SMD: -0.47,95% CI:-0.74 to – 0.2, P = 0.001). Conclusion: Despite the paucity of related research, the studies indicated the potential effects of micronutrients on reducing the pain severity in primary dysmenorrhea. But more studies are needed to confirm the safety and effectiveness of various types of micronutrients on primary dysmenorrhea.
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Affiliation(s)
- Marzieh Saei Ghare Naz
- Department of Midwifery, Student Research Committee, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Kiani
- Department of Midwifery, Midwifery and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Rashidi Fakari
- Department of Midwifery, Midwifery and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vida Ghasemi
- Department of Midwifery, Midwifery and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoumeh Abed
- Department of Gynecology and Obstetrics, School of Medicine, Alborz University of Medical Sciences, Alborz, Iran
| | - Giti Ozgoli
- Department of Midwifery, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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82
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Qiu S, Zhou H, Shen Z, Hao L, Chen H, Zhou X. Synthesis, characterization, and comparison of antibacterial effects and elucidating the mechanism of ZnO, CuO and CuZnO nanoparticles supported on mesoporous silica SBA-3. RSC Adv 2020; 10:2767-2785. [PMID: 35496109 PMCID: PMC9048980 DOI: 10.1039/c9ra09829a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 01/08/2020] [Indexed: 12/04/2022] Open
Abstract
Silanized iminodiacetic acid (GLYMO–IDA) modified mesoporous silica (G-SBA) was prepared following a co-condensation method. G-SBA/Cu2+, G–SBA/Zn2+ and G-SBA/Cu2+–Zn2+ were obtained through the impregnation method with coordination by GLYMO–IDA. SBA/CuO, SBA/ZnO, and SBA/CuZnO were generated after calcination of G-SBA/Cu2+, G-SBA/Zn2+ and G-SBA/Cu2+–Zn2+. After modification, the amount of metal ion was 6 to 70 times higher than that of the blank mesoporous silica. The diameter of nano-copper oxide particles in mesoporous silica was 4.8 nm. The bacteriostatic rates of SBA/CuO at a copper oxide concentration of 250 ppm against E. coli and S. aureus were 85.87% and 100%, respectively. SBA/CuO and SBA/CuZnO with {111} lattice planes exhibited better antibacterial effects compared to the commercial-grade nano-zinc oxide and nano-copper oxide. When exposed to ultraviolet light, SBA/CuZnO displayed the highest photocatalytic activity and optimal antimicrobial effect. Therefore, SBA/CuZnO can be an alternative to antibiotics because of its non-toxic nature and good antibacterial properties. Silanized iminodiacetic acid (GLYMO–IDA) modified mesoporous silica (G-SBA) was prepared following a co-condensation method.![]()
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Affiliation(s)
- Songfa Qiu
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
| | - Hongjun Zhou
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
| | - Zhichuan Shen
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
| | - Li Hao
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
| | - Huayao Chen
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
| | - Xinhua Zhou
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution
- School of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- People's Republic of China
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83
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Is There a Link between Zinc Intake and Status with Plasma Fatty Acid Profile and Desaturase Activities in Dyslipidemic Subjects? Nutrients 2019; 12:nu12010093. [PMID: 31905662 PMCID: PMC7019783 DOI: 10.3390/nu12010093] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/24/2019] [Indexed: 02/07/2023] Open
Abstract
The prevalence of obesity and dyslipidemia has increased worldwide. The role of trace elements in the pathogenesis of these conditions is not well understood. This study examines the relationship between dietary zinc (Zn) intake and plasma concentrations of Zn, copper (Cu) and iron (Fe) with lipid profile indicators, fatty acid composition in plasma phospholipids and desaturase enzyme activities in a dyslipidemic population. The role of the newly proposed biomarker of Zn status, the linoleic:dihomo-gama-linolenic acid (LA:DGLA) ratio, in predicting Zn status of dyslipidemic subjects has been explored. The study included 27 dyslipidemic adults, 39-72 years old. Trace elements were determined using atomic absorption spectrometry and fatty acid composition by a liquid gas chromatography. Desaturase activities were calculated from product-precursor fatty acid ratios. Dietary data were obtained using 24 h recall questionnaires. Insufficient dietary intake of Zn, low plasma Zn concentrations and an altered Cu:Zn ratio is related to modified fatty acid profile in subjects with dyslipidemia. Plasma Zn status was associated with obesity. There was no correlation between dietary Zn intake and plasma Zn status. The LA:DGLA ratio was inversely linked to dietary Zn intake. Cu, in addition to Zn, may directly or indirectly, affect the activity of desaturase enzymes.
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84
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Zhao H, Wang Y, Guo M, Fei D, Mu M, Yu H, Xing M. Hepatoprotective effects of zinc (II) via cytochrome P-450/reactive oxygen species and canonical apoptosis pathways after arsenite waterborne exposure in common carp. CHEMOSPHERE 2019; 236:124869. [PMID: 31549675 DOI: 10.1016/j.chemosphere.2019.124869] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/26/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Chronic arsenicosis has threatened the survival of aquatic animals with molecular mechanisms yet clear. In the present study, liver damage was evident by fluctuated activities of transaminases and declined ATPases in common carp under arsenic (As) exposure for 30 days. Mechanically, As significantly decreased cytochrome P-1A (CYP1A) activity and increased reactive oxygen species (ROS) content, which corroborated mitochondrial dysfunction in the hepatocytes. This hypothesis was further suggested by Caspase-3-executed apoptosis by death receptor pathway (Fas, TNF-α and Caspase-8) and mitochondrial pathway (Bax, Bcl-2 and Caspase-9). The above results indicated that As-elicited oxidative damage lead to apoptotic hepatic injury in carp. On the contrary, zinc (Zn) exerted an ROS scavenger and an antidote to As in the present model evidenced by alleviated liver injury and restored liver function index. Moreover, Zn and As co-administration displayed partially recovered CYPs enzyme system and quenched apoptotic positive cells compared As treated alone. These outcomes could be applied to develop counter practices based on Zn preparations to decrease the biotoxicity of As.
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Affiliation(s)
- Hongjing Zhao
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China.
| | - Yu Wang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China.
| | - Menghao Guo
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Dongxue Fei
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Mengyao Mu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Hongxian Yu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China.
| | - Mingwei Xing
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China.
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85
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Effect of differing amounts of zinc oxide supplementation on the antioxidant status and zinc metabolism in newborn dairy calves. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.103819] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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86
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Rostamkhani H, Mellati AA, Tabaei BS, Alavi M, Mousavi SN. Association of Serum Zinc and Vitamin A Levels with Severity of Retinopathy in Type 2 Diabetic Patients: a Cross-Sectional Study. Biol Trace Elem Res 2019; 192:123-128. [PMID: 30790120 DOI: 10.1007/s12011-019-01664-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/04/2019] [Indexed: 10/27/2022]
Abstract
Diabetic retinopathy (DR) is a common microvascular disorder which occurs in type 2 diabetes mellitus (T2DM) patients due to chronic hyperglycemia. Previous studies reported that serum zinc (Zn) and vitamin A levels were associated with certain diabetic microvascular complications. However, the relationship between Zn and vitamin A levels with the severity of DR in type 2 diabetic patients is not clear. We aimed to analyze the relationship between serum Zn and vitamin A levels with the severity of DR in T2DM. Sixty T2DM patients were selected from whom attending to the ophthalmology center of hospital from June 2017 and Feb 2018. Patients were categorized as controls, non-proliferative DR (NPDR), and proliferative DR (PDR). Anthropometric, dietary, and physical activity data were gathered. Fasting blood samples were taken to measure biochemical parameters. Serum Zn and vitamin A levels were measured via enzymatic-calorimetric and HPLC methods, respectively. Results showed that serum Zn and vitamin A levels were significantly lower in the PDR group than the controls (p = 0.03 and p = 0.008, respectively). Serum low-density lipoprotein (LDL.C) was significantly higher in the PDR than the control group (p = 0.02). Adjusting for the other variables, increase in serum Zn and vitamin A levels reduced risk of DR by 25.7% and 31.1%, respectively (p = 0.02 and p = 0.007). Higher serum LDL.C increased DR severity by 28.7%, adjusted for the variables (95% CI = 0.002, 0.02; p = 0.01). Lower serum Zn and vitamin A levels, as well as higher LDL.C in the T2DM patients, are related to DR severity.
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Affiliation(s)
- Hadi Rostamkhani
- Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Student Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ali Awsat Mellati
- Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Banafsheh Sadat Tabaei
- Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammadhossein Alavi
- Department of Biothechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Seyedeh Neda Mousavi
- Department of Nutrition, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
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87
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Novel Polymeric Nanocarriers Reduced Zinc and Doxycycline Toxicity in the Nematode Caenorhabditis elegans. Antioxidants (Basel) 2019; 8:antiox8110550. [PMID: 31739428 PMCID: PMC6912483 DOI: 10.3390/antiox8110550] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 02/06/2023] Open
Abstract
The objective was to evaluate the toxicity of zinc- and doxycycline-loaded polymeric nanoparticles (NPs) using Caenorhabditis elegans as a model organism. These NPs are composed of ethylene glycol dimethacrylate, 2-hydroxyethyl methacrylate and methacrylic acid. NPs were loaded with doxycycline (D-NPs) and zinc (Zn-NPs) by chemical adsorption, and loading efficacy was demonstrated. Worm death rate in a concentration-response curve basis was calculated for lethality. Metabolism was evaluated through pharyngeal pumping assay. Body length measurements, brood size and egg lays were used to gauge growth, reproduction and fertility respectively. Intracellular hydrogen peroxide levels were determined to assess the reactive oxygen species production. One-way ANOVA and Bonferroni were used for comparisons (p < 0.05). Tested NPs at the highest dosage did not affect lethality or worm metabolism, expressed in terms of death rate and pharyngeal pumping per minute, respectively. Zn-NPs slightly increased worm growth. The concentration of the intracellular hydrogen peroxide levels was the lowest in the D-NPs group. The distinct NPs and concentrations employed were shown to be non-toxic for in situ administration of zinc and doxycycline, reducing the harmful effects of these compounds.
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88
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Hasanato R. Alterations in serum levels of copper, zinc, and selenium among children with sickle cell anemia. Turk J Med Sci 2019; 49:1287-1291. [PMID: 31648429 PMCID: PMC7018245 DOI: 10.3906/sag-1812-92] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/06/2019] [Indexed: 11/08/2022] Open
Abstract
Background/aim Oxidative stress contributes to pathophysiological dysfunction in sickle cell anemia (SCA). Copper (Cu) is a prooxidant, whereas zinc (Zn) and selenium (Se) are antioxidant trace elements. This study investigates the serum levels of Cu, Zn, and Se among children with SCA. Materials and methods This cross-sectional study was performed at King Khalid University Hospital, Riyadh. Thirty-three children with SCA in steady state and 33 age- and sex-matched normal healthy children were included in the study. Cu, Zn, and Se levels were measured by inductively coupled plasma-mass spectrometry (ICP-MS) instrument. Results The median serum Cu levels among SCA patients (1.3 μg/mL) were higher than those of the controls (0.88 μg/mL; P < 0.0001). Zn (0.61 μg/mL) and Se (74 ng/mL) levels among SCA patients, however, were significantly lower than those of the controls (0.94 μg/mL; P < 0.0001) and (91.2 ng/mL; P < 0.0001), respectively. The Cu/Zn ratio among SCA patients (1.92) was higher than that of the controls (0.98). Conclusion Decreased blood levels of antioxidant trace elements may contribute to the pathophysiology in SCA by promoting oxidative stress. The monitoring of trace element levels in SCA appears to be vital for decreasing morbidity associated with the disorder.
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Affiliation(s)
- Rana Hasanato
- Department of Pathology, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
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89
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Aiello A, Farzaneh F, Candore G, Caruso C, Davinelli S, Gambino CM, Ligotti ME, Zareian N, Accardi G. Immunosenescence and Its Hallmarks: How to Oppose Aging Strategically? A Review of Potential Options for Therapeutic Intervention. Front Immunol 2019; 10:2247. [PMID: 31608061 PMCID: PMC6773825 DOI: 10.3389/fimmu.2019.02247] [Citation(s) in RCA: 413] [Impact Index Per Article: 82.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 09/05/2019] [Indexed: 12/11/2022] Open
Abstract
Aging is accompanied by remodeling of the immune system. With time, this leads to a decline in immune efficacy, resulting in increased vulnerability to infectious diseases, diminished responses to vaccination, and a susceptibility to age-related inflammatory diseases. An age-associated immune alteration, extensively reported in previous studies, is the reduction in the number of peripheral blood naïve cells, with a relative increase in the frequency of memory cells. These two alterations, together with inflamm-aging, are considered the hallmarks of immunosenescence. Because aging is a plastic process, it is influenced by both nutritional and pharmacological interventions. Therefore, the role of nutrition and of immunomodulation in immunosenescence is discussed, due to the multifactorial influence on these hallmarks. The close connection between nutrition, intake of bioactive nutrients and supplements, immune function, and inflammation demonstrate the key role of dietary strategies as regulators of immune response and inflammatory status, hence as possible modulators of the rate of immunosenescence. In addition, potential options for therapeutic intervention are clarified. In particular, the use of interleukin-7 as growth factor for naïve T cells, the function of checkpoint inhibitors in improving T cell responses during aging and, the potential of drugs that inhibit mitogen-activated protein kinases and their interaction with nutrient signaling pathways are discussed. Finally, it is suggested that the inclusion of appropriate combinations of toll-like receptor agonists may enhance the efficacy of vaccination in older adults.
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Affiliation(s)
- Anna Aiello
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Farzin Farzaneh
- Molecular Medicine Group, Department of Hematological Medicine, School of Cancer & Pharmaceutical Sciences, The Rayne Institute, King's College London, London, United Kingdom
| | - Giuseppina Candore
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Calogero Caruso
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Sergio Davinelli
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso, Italy
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Caterina Maria Gambino
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Mattia Emanuela Ligotti
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Nahid Zareian
- Molecular Medicine Group, Department of Hematological Medicine, School of Cancer & Pharmaceutical Sciences, The Rayne Institute, King's College London, London, United Kingdom
| | - Giulia Accardi
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
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90
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Measurement of Adhesion of Sternal Wires to a Novel Bioactive Glass-Based Adhesive. J Funct Biomater 2019; 10:jfb10030037. [PMID: 31405006 PMCID: PMC6787671 DOI: 10.3390/jfb10030037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 11/17/2022] Open
Abstract
Stainless steel wires are the standard method for sternal closure because of their strength and rigidity, the simplicity of the process, and the short healing time that results from their application. Despite this, problems still exist with sternal stability due to micromotion between the two halves of the dissected and wired sternum. Recently, a novel glass-based adhesive was developed which, in cadaveric trials and in conjunction with wiring, was shown to restrict this micromotion. However, in order to avoid complications during resternotomy, the adhesive should adhere only to the bone and not the sternal wire. In this study, sternal wires were embedded in 8 mm discs manufactured from the novel glass-based adhesive and the constructs were then incubated at 37 °C for one, seven, and 30 days. The discs were manufactured in two different thicknesses: 2 and 3 mm. Wire pull-out tests were then performed on the constructs at three different strain rates (1, 0.1, and 0.01 mm/min). No statistically significant difference in pull-out force was found regardless of incubation time, loading rate, or construct thickness. The pull-out forces recorded were consistent with static friction between the wire and adhesive, rather than the adhesion between them. Scanning electron micrographs provided further proof of this. These results indicate that the novel adhesive may be suitable for sternal fixation without complicating a potential resternotomy.
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91
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Salas-Huetos A, James ER, Aston KI, Jenkins TG, Carrell DT. Diet and sperm quality: Nutrients, foods and dietary patterns. Reprod Biol 2019; 19:219-224. [PMID: 31375368 DOI: 10.1016/j.repbio.2019.07.005] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 01/03/2023]
Abstract
Human semen quality has declined worldwide in the last 40 years, by some accounts as much as 50-60%, causing serious concerns and implications for human fertility. Even though it has been shown to be a worldwide problem, this decrease is more pronounced in developed and industrialized countries, pointing to changes in modifiable lifestyle factors (e.g. unhealthy diets, lifestyles, and pollution) as the main causes. Studies investigating the relation between diet and semen quality can be classified into three groups; studies assessing the association between semen quality and 1) nutrients, dietary supplements and antioxidants, 2) food, and 3) dietary patterns. The present narrative review provides a wide-ranging vision of the positive associations and effects of diet on sperm quality. Although the picture of the relationship between diet and sperm quality and fertility is far from complete, a number of broad conclusions have emerged. First, increased intake of selenium and zinc, omega-3 (ω-3) fatty acids, CoenzymeQ10 (CoQ10) and carnitine supplements have been positively related to sperm quality. In terms of food groups, vegetables, fruits, nuts and whole cereals, all rich in fiber and antioxidants, and fish, seafood, shellfish, poultry, and low-fat dairy products have been positively associated with sperm quality. Finally, adherence to healthy dietary patterns is positively associated with sperm concentration and sperm motility.
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Affiliation(s)
- Albert Salas-Huetos
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA; Universitat Rovira i Virgili, Biochemistry and Biotechnology Department, Human Nutrition Unit, Reus, Spain; Institut d'investigació Sanitària Pere i Virgili, Reus, Spain; Consorcio CIBER, M.P., Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
| | - Emma R James
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA; Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Kenneth I Aston
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Timothy G Jenkins
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Douglas T Carrell
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
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92
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Du X, Shi L, Gao H, Fu X, Zhang X, Zhang Y, Xie C. The effect of zinc supplementation in pre-diabetes: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2019; 98:e16259. [PMID: 31277146 PMCID: PMC6635284 DOI: 10.1097/md.0000000000016259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 06/07/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The number of people with diabetes and pre-diabetes is growing exponentially. Human studies have shown that zinc supplementation is beneficial for pre-diabetes. However, owing to the low quality, small sample size, and methodological heterogeneity of these studies, this conclusion is not convincing. Consequently, in order to determine whether zinc supplementation is effective and safe in pre-diabetic patients, it is necessary to conduct a meta-analysis of high-quality clinical trials. METHODS We will retrieve MEDLINE (PubMed), EMBASE, the Web of Science, Cochrane Library, and the ClinicalTrials.gov website without restriction on language. Randomized controlled trials (RCTs) of Zinc supplementation for adult patients with pre-diabetes will be searched in multiple databases from inception to October 2020. The primary outcome of the meta-analysis is the HbA1c. The secondary outcomes include the fasting blood glucose (FBG), fasting insulin (FINS), homeostasis model assessment of insulin resistance (HOMA-IR), and quantitative insulin sensitivity check index (QUICKI). Two assessors will utilize the Cochrane Collaboration's risk of bias tool to evaluate the RCTs and all statistical data will be analyzed by using the Review Manage software V5.3.0. RESULTS This study will provide high-quality synthesis of effectiveness and safety of zinc supplementation for pre-diabetes. CONCLUSION This systematic review and meta-analysis will provide the available evidence to assess whether the zinc supplementation is beneficial to glucose control and insulin resistance in patients with pre-diabetes. PROSPERO REGISTRATION NUMBER CRD 42018095724.
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Affiliation(s)
- Xuqin Du
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
| | - Lipeng Shi
- Clinical Department, Dianjiang Hospital of Traditional Chinese Medicine, Dianjiang, Chongqing, China
| | - Hong Gao
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
| | - Xiaoxu Fu
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
| | - Xiyu Zhang
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
| | - Yuan Zhang
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
| | - Chunguang Xie
- Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province
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93
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Ameliorative effects of snake (Deinagkistrodon acutus) oil and its main fatty acids against UVB-induced skin photodamage in mice. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 197:111538. [PMID: 31247385 DOI: 10.1016/j.jphotobiol.2019.111538] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 12/15/2022]
Abstract
The effects of topically administered snake (Deinagkistrodon acutus) oil and its main fatty acid components on skin photodamage were explored. Epidermal thickness, mice body weight, antioxidant enzymes (superoxide dismutase, glutathione peroxidase, catalase), inflammatory cytokines (tumor necrosis factor alpha and interleukin-6), skin histology, collagen content, and metalloproteinase-1 indicators were analyzed. The results show that topical application of both snake oil and its main fatty acids recovered ultraviolet B (UVB) irradiation induced antioxidant enzymes depletion, prevented metalloproteinase-1. Snake oil and its main fatty acids suppressed dermal infiltration of inflammatory cells and reduced inflammatory cytokines levels. Notably, there was no significant difference in the antioxidant activity but a significant difference in the anti-inflammatory activity between fatty acids and snake oil under the same dose. Finally, snake oil and its main fatty acids inhibited UVB-induced histological damage such as epidermal thickening, collagen fiber and elastic fiber destruction. Our study demonstrated for the first time in KM mice that snake oil exhibited prominent photoprotection activity by protecting the activity of antioxidant enzymes and inhibiting inflammatory factors, as well as reducing the generation of MMP-1. What's more, the main fatty acids in snake oil play an important role in preventing photo-damage especially in protecting antioxidant enzyme activity.
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94
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Bai MM, Liu HN, Xu K, Wen CY, Yu R, Deng JP, Yin YL. Use of coated nano zinc oxide as an additive to improve the zinc excretion and intestinal morphology of growing pigs1. J Anim Sci 2019; 97:1772-1783. [PMID: 30943291 DOI: 10.1093/jas/skz065] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 02/06/2019] [Indexed: 01/08/2023] Open
Abstract
Two experiments were designed to explore the effects of coated zinc (Zn) oxide nanoparticles (NZO) on the diarrhea ratio, antioxidant capacity, intestinal morphology, and zinc excretion in growing pigs. In Exp.1, 270 growing pigs (21.88 ± 0.8 kg initial BW) were allocated to three treatments, each for 30 d: (i) control group (CG), basal diet containing Zn-free premix + 100 mg Zn/kg from ZnSO4; (ii) high Zn (HZN), basal diet containing Zn-free premix + 2,250 mg Zn/kg from ZnO; (iii) coated nano ZnO (CNZO), basal diet containing Zn-free premix + 100 mg Zn/kg from coated NZO. In Exp.2, 21 crossbred growing pigs (17.04 ± 0.01 kg initial BW) were allocated to three treatments, each for 28 d: (i) HZN, basal diet containing Zn-free premix + 2,250 mg Zn/kg from ZnO; (ii) low concentration of nano ZnO (LNZO), basal diet containing Zn-free premix + 100 mg Zn/kg from 5% coated NZO material; (iii) high concentration of nano ZnO (HNZO), basal diet containing Zn-free premix + 100 mg Zn/kg from 10% coated NZO material. In Exp. 1, compared with the CG diet, CNZO significantly reduced the diarrhea rate (P < 0.05) and increased the activities of glutathione peroxidase and superoxide dismutase (P < 0.05). Compared with HZN, CNZO decreased the activities of serum alanine aminotransferase, and alkaline phosphatase, as well as the fecal zinc concentration (P < 0.05). In Exp. 2, pigs fed LNZO or HNZO had an increased final BW, average daily weigh and diarrhea rate, and a decreased level of Zn in the plasma, liver, and feces on day 14 compared with the HZN group (P < 0.05). The villous height and villous height/crypt depth ratio of duodenum were higher (P < 0.05) in the HZN group than the HNZO group, whereas the higher villous height of jejunum was observed in the LNZO group compared with that in the HNZO group (P < 0.05). We found that CNZO (100 mg/kg Zn) could improve the antioxidant capacity and reduce fecal Zn emission. However, the diarrhea rate was not effectively suppressed when compared with the HNZO supplementation. Furthermore, coated NZO material of 5% concentration is more effective in improving the morphology of intestinal villus.
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Affiliation(s)
- Miaomiao M Bai
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Key Laboratory of Agro-ecological Processes in Subtropical Region; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Hongnan N Liu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Key Laboratory of Agro-ecological Processes in Subtropical Region; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,Hangzhou King Techina Technology Company Academician Expert Workstation, Hangzhou King Techina Technology Co., Ltd., Hangzhou, China.,Hunan Co-Innovation Center of Safety Animal Production, CICSAP, Changsha, Hunan, P.R. China
| | - Kang Xu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Key Laboratory of Agro-ecological Processes in Subtropical Region; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,Hangzhou King Techina Technology Company Academician Expert Workstation, Hangzhou King Techina Technology Co., Ltd., Hangzhou, China.,Hunan Co-Innovation Center of Safety Animal Production, CICSAP, Changsha, Hunan, P.R. China
| | - Chaoyue Y Wen
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Key Laboratory of Agro-ecological Processes in Subtropical Region; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Rong Yu
- Hangzhou King Techina Technology Company Academician Expert Workstation, Hangzhou King Techina Technology Co., Ltd., Hangzhou, China
| | - Jingping P Deng
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yu L Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production; Key Laboratory of Agro-ecological Processes in Subtropical Region; Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production; Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Hangzhou King Techina Technology Company Academician Expert Workstation, Hangzhou King Techina Technology Co., Ltd., Hangzhou, China.,Hunan Co-Innovation Center of Safety Animal Production, CICSAP, Changsha, Hunan, P.R. China
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Ansari MM, Ahmad A, Mishra RK, Raza SS, Khan R. Zinc Gluconate-Loaded Chitosan Nanoparticles Reduce Severity of Collagen-Induced Arthritis in Wistar Rats. ACS Biomater Sci Eng 2019; 5:3380-3397. [PMID: 33405580 DOI: 10.1021/acsbiomaterials.9b00427] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Rheumatoid arthritis (RA) is the most prevalent autoimmune disease affecting about 1% world population. Zinc (Zn) is necessary for the maintenance of bone homeostasis and the level of Zn was reported to be decreased in RA patients and collagen-induced arthritic rats. Effective delivery of Zn has been reported using zinc gluconate but oral absorption of Zn from zinc gluconate (ZG) is very low in humans. Zn supplementation reduces disease severity in patients suffering from chronic, refractory RA and exerts mild and transient side effects. The aim of this study was to synthesize and characterize zinc gluconate-loaded chitosan nanoparticles (ZG-Chit NPs) and to evaluate and compare therapeutic efficacy of ZG-Chit NPs and zinc gluconate against collagen-induced RA in Wistar rats. The nanoparticles were formulated by ionic gelation method and the hydrodynamic diameter was 106.5 ± 79.55 nm as measured using DLS. The particle size, shape, and surface morphology was further confirmed by transmission electron microscopy, scanning electron microscopy, and atomic force microscopy. These nanoparticles showed good cytocompatibility against foreskin fibroblasts (BJ) and L929 cells. Arthritic rats were treated with ZG (20 mg/kg body weight, intraperitoneally) and equivalent doses of ZG-Chit NPs. The treatment of both ZG and ZG-Chit NPs reduced the severity of arthritis as evidenced by reduced joint swelling, erythema, and edema but ZG-Chit NPs exhibited superior efficacy. Furthermore, it was found that ZG and ZG-Chit NPs attenuate biomarkers of inflammation (C-reactive protein, myeloperoxidase, nitric oxide, TNF-α, and IL-1β) and oxidative stress (articular elastase, lipid peroxidation, catalase, glutathione, and superoxide dismutase). The results of the histopathology further confirmed that ZG-Chit NPs markedly suppressed infiltration of inflammatory cells as compared to ZG at the ankle joint tissue. Immunohistochemical analysis also revealed that treatment with ZG-Chit NPs resulted in reduced pro-inflammatory marker (TNF-α, IL-6, and iNOS) expression and enhanced SOD1 expression. Overall, this study suggests that ZG and ZG-Chit NPs suppressed the severity of arthritis plausibly mediated by attenuation of inflammation and oxidative stress and more importantly ZG-Chit NPs exhibited superior efficacy as compared to ZG.
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Affiliation(s)
- Md Meraj Ansari
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Anas Ahmad
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Rakesh Kumar Mishra
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
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96
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Prasad AS, Bao B. Molecular Mechanisms of Zinc as a Pro-Antioxidant Mediator: Clinical Therapeutic Implications. Antioxidants (Basel) 2019; 8:antiox8060164. [PMID: 31174269 PMCID: PMC6617024 DOI: 10.3390/antiox8060164] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/21/2019] [Accepted: 05/27/2019] [Indexed: 02/07/2023] Open
Abstract
The essentiality of zinc as a trace mineral in human health has been recognized for over five decades. Zinc deficiency, caused by diet, genetic defects, or diseases, can cause growth retardation, delayed sexual maturation, depressed immune response, and abnormal cognitive functions in humans. Zinc supplementation in zinc-deficient individuals can overcome or attenuate these abnormalities, suggesting zinc is an essential micro-nutrient in the body. A large number of in vitro and in vivo experimental studies indicate that zinc deficiency also causes apoptosis, cellular dysfunction, deoxyribonucleic acid (DNA) damage, and depressed immune response. Oxidative stress, due to the imbalance of reactive oxygen species (ROS) production and detoxification in the anti-oxidant defense system of the body, along with subsequent chronic inflammation, is believed to be associated with many chronic degenerative diseases such as diabetes, heart diseases, cancers, alcohol-related disease, macular degenerative disease, and neuro-pathogenesis. A large number of experimental studies including cell culture, animal, and human clinical studies have provided supportive evidence showing that zinc acts as an anti-oxidative stress agent by inhibition of oxidation of macro-molecules such as (DNA)/ribonucleic acid (RNA) and proteins as well as inhibition of inflammatory response, eventually resulting in the down-regulation of (ROS) production and the improvement of human health. In this article, we will discuss the molecular mechanisms of zinc as an anti-oxidative stress agent or mediator in the body. We will also discuss the applications of zinc supplementation as an anti-oxidative stress agent or mediator in human health and disease.
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Affiliation(s)
- Ananda S Prasad
- Department of Oncology, School of Medicine, Wayne State University and Karmanos Cancer Center, Detroit, MI 48201, USA.
| | - Bin Bao
- Department of Oncology, School of Medicine, Wayne State University and Karmanos Cancer Center, Detroit, MI 48201, USA.
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97
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Daenen K, Andries A, Mekahli D, Van Schepdael A, Jouret F, Bammens B. Oxidative stress in chronic kidney disease. Pediatr Nephrol 2019; 34:975-991. [PMID: 30105414 DOI: 10.1007/s00467-018-4005-4] [Citation(s) in RCA: 416] [Impact Index Per Article: 83.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 06/03/2018] [Accepted: 06/14/2018] [Indexed: 12/13/2022]
Abstract
Oxidative stress (OS), defined as disturbances in the pro-/antioxidant balance, is harmful to cells due to the excessive generation of highly reactive oxygen (ROS) and nitrogen (RNS) species. When the balance is not disturbed, OS has a role in physiological adaptations and signal transduction. However, an excessive amount of ROS and RNS results in the oxidation of biological molecules such as lipids, proteins, and DNA. Oxidative stress has been reported in kidney disease, due to both antioxidant depletions as well as increased ROS production. The kidney is a highly metabolic organ, rich in oxidation reactions in mitochondria, which makes it vulnerable to damage caused by OS, and several studies have shown that OS can accelerate kidney disease progression. Also, in patients at advanced stages of chronic kidney disease (CKD), increased OS is associated with complications such as hypertension, atherosclerosis, inflammation, and anemia. In this review, we aim to describe OS and its influence on CKD progression and its complications. We also discuss the potential role of various antioxidants and pharmacological agents, which may represent potential therapeutic targets to reduce OS in both pediatric and adult CKD patients.
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Affiliation(s)
- Kristien Daenen
- Department of Microbiology and Immunology, Laboratory of Nephrology, KU Leuven - University of Leuven, 3000, Leuven, Belgium.
- Department of Nephrology, Dialysis and Renal Transplantation, University Hospitals Leuven, 3000, Leuven, Belgium.
- Department of Nephrology, Sahlgrenska University Hospital, Gothenburg, Sweden.
| | - Asmin Andries
- Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, KU Leuven - University of Leuven, 3000, Leuven, Belgium
| | - Djalila Mekahli
- Department of Development and Regeneration, Laboratory of Pediatrics, PKD Group, KU Leuven - University of Leuven, 3000, Leuven, Belgium
- Department of Pediatric Nephrology, University Hospitals Leuven, 3000, Leuven, Belgium
| | - Ann Van Schepdael
- Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, KU Leuven - University of Leuven, 3000, Leuven, Belgium
| | - François Jouret
- Division of Nephrology, Department of Internal Medicine, University of Liège Hospital (ULg CHU), Liège, Belgium
- Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Science, University of Liège, Liège, Belgium
| | - Bert Bammens
- Department of Microbiology and Immunology, Laboratory of Nephrology, KU Leuven - University of Leuven, 3000, Leuven, Belgium
- Department of Nephrology, Dialysis and Renal Transplantation, University Hospitals Leuven, 3000, Leuven, Belgium
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98
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The effect of the dietary inclusion levels and sources of zinc on the performance, metabolism, redox and immune status of turkeys. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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99
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Gao L, Fan Y, Zhang X, Yang L, Huang W, Hang T, Li M, Du S, Ma J. Zinc supplementation inhibits the high glucose‑induced EMT of peritoneal mesothelial cells by activating the Nrf2 antioxidant pathway. Mol Med Rep 2019; 20:655-663. [PMID: 31115566 PMCID: PMC6580007 DOI: 10.3892/mmr.2019.10260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 04/11/2019] [Indexed: 01/17/2023] Open
Abstract
The high glucose (HG)-induced epithelial-mesenchymal transition (EMT) of peritoneal mesothelial cells (PMCs) serves an important role in peritoneal fibrosis (PF) during peritoneal dialysis. Our previous study reported that zinc (Zn) supplementation prevented the HG-induced EMT of rat PMCs in vitro. In the present study, the role of Zn in HG-induced EMT was investigated in vivo using a rat model of PF. Additionally, the molecular mechanisms underlying HG-induced EMT were studied in human PMCs (HPMCs). In the rat model of PF, HG treatment increased the glucose transfer capacity and decreased the ultrafiltration volume. Histopathological analysis revealed peritoneal thickening, increased expression of vimentin and decreased expression of E-cadherin. ZnSO4 significantly ameliorated the aforementioned changes, whereas Zn inhibition by clioquinol significantly aggravated the effects of HG on rats. The effects of Zn on HPMCs was assessed using western blot analysis, Transwell assays and flow cytometry. It was revealed that Zn also significantly suppressed the extent of the EMT, and reduced reactive oxygen species production and the migratory ability of HG-induced HPMCs, whereas Zn inhibition by N',N',N',N'-tetrakis (2-pyridylmethyl) ethylenediamine significantly potentiated the HG-induced EMT of HPMCs. HG-stimulated HPMCs exhibited increased expression of nuclear factor-like 2 (Nrf2) in the nucleus, and total cellular NAD(P)H quinone dehydrogenase 1 (NQO1) and heme oxygenase-1 (HO-1), the target proteins of the Nrf2 antioxidant pathway. Zn supplementation further promoted nuclear Nrf2 expression, and increased the expression of target proteins of the Nrf2 antioxidant pathway, whereas Zn depletion decreased nuclear Nrf2, NQO1 and HO-1 expression compared with the HG group. In conclusion, Zn supplementation was proposed to suppress the effects of HG on the EMT by stimulating the Nrf2 antioxidant pathway and subsequently reducing oxidative stress in PMCs.
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Affiliation(s)
- Lili Gao
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yi Fan
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiuli Zhang
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Lina Yang
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wenyu Huang
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Tianyu Hang
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Mingyang Li
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Shuyan Du
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jianfei Ma
- Department of Nephrology, The First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, P.R. China
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100
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Zhang D, Zhang T, Liu J, Chen J, Li Y, Ning G, Huo N, Tian W, Ma H. Zn Supplement-Antagonized Cadmium-Induced Cytotoxicity in Macrophages In Vitro: Involvement of Cadmium Bioaccumulation and Metallothioneins Regulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4611-4622. [PMID: 30942077 DOI: 10.1021/acs.jafc.9b00232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cadmium (Cd) is a toxic metal leading to multiple forms of organ damage. Zinc (Zn) was reported as a potential antagonist against Cd toxicity. The present study investigates the antagonistic effect of Zn (20 μM) on Cd (20 or 50 μM) cytotoxicity in macrophages in vitro. The results shows that Cd exposure caused dose-dependent morphologic and ultrastructural alterations in RAW 264.7 macrophages. Zn supplement significantly inhibited Cd cytotoxicity in RAW 264.7 or HD-11 macrophages by mitigating cell apoptosis, excessive ROS output, and mitochondrial membrane depolarization. Notably, Zn supplement for 12 h remarkably prevented intracellular Cd2+ accumulation in 20 μM (95.99 ± 9.93 vs 29.64 ± 5.08 ng/106 cells; P = 0.0008) or 50 μM Cd (179.78 ± 28.66 vs 141.62 ± 22.15 ng/106 cells; P = 0.003) exposed RAW 264.7 cells. Further investigation found that Cd promoted metallothioneins (MTs) and metal regulatory transcription factor 1 (MTF-1) expression in RAW 264.7 macrophages. Twenty μM Zn supplement dramatically enhanced MTs and MTF-1 levels in Cd-exposed RAW 264.7 macrophages. Intracellular Zn2+ chelation or MTF-1 gene silencing inhibited MTs synthesis in Cd-exposed RAW 264.7 macrophages, which was accompanied by the declined expression of MTF-1, indicating that regulation of Zn on MTs was partially achieved by MTF-1 mobilization. In conclusion, this study demonstrates the antagonism of Zn against Cd cytotoxicity in macrophages and reveals its antagonistic mechanism by preventing Cd2+ bioaccumulation and promoting MTs expression.
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Affiliation(s)
- Ding Zhang
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Ting Zhang
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Jingying Liu
- Function Laboratory , Shanxi Medical University , Taiyuan 030001 , P. R. China
| | - Jianshan Chen
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Ying Li
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Guanbao Ning
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Nairui Huo
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Wenxia Tian
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
| | - Haili Ma
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu 030800 , P. R. China
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