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Lima MA, Hossain MA, Islam MR, Mukul MNA, Akter T. Dietary zinc requirement of juvenile stinging catfish Heteropneustes fossilis based on growth performance, haematology, and tissue mineral composition. Heliyon 2024; 10:e28422. [PMID: 38560187 PMCID: PMC10981125 DOI: 10.1016/j.heliyon.2024.e28422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/13/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024] Open
Abstract
This investigation was done to determine how much zinc (Zn) the stinging catfish, Heteropneustes fossilis, needs in its diet. Five isonitrogenous (34.5% protein) and isolipidic (6.0% lipid) diets were prepared to contain graded levels of Zn (0, 10, 20, 30, and 40 mg kg-1), supplied as zinc sulfate (ZnSO4·7H2O), and referred to as Zn0, Zn10, Zn20, Zn30, and Zn40, respectively. A total of 600 fish (initial body weight: 1.41 ± 0.02 g) were stocked in 15 glass aquaria (40 fish/aquarium), each with 180 L water capacity. For ten weeks, each diet was hand fed to three groups of fish twice daily until they appeared satisfied. The highest weight gain and specific growth rate, and lowest feed conversion ratio were recorded in fish fed with a 30 mg Zn kg-1 diet. Zn contents in bone and muscle linearly increased up to 30 mg kg-1 Zn and then remained stable, while iron (Fe) and copper (Cu) contents in bone and muscle had an inverse pattern with the inclusion level of dietary Zn. Increasing dietary Zn levels up to 30 mg kg-1 was found to improve values of hematological parameters such as red blood cell (RBC), white blood cell (WBC), haemoglobin (Hb), and haematocrit (HCT). These values, however, decreased when the dietary Zn level was further increased. The serum alkaline phosphatase level was the highest in fish fed a diet containing 30 mg kg-1 of Zn. Regression analyses based on weight gain, specific growth rate, and bone and muscle Zn concentrations indicated that the optimum dietary Zn requirement for stinging catfish was in a range of 27.4-36.5 mg kg-1.
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Affiliation(s)
- Muslima Akter Lima
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Md. Amzad Hossain
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Md. Rabiul Islam
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Md. Nur Amin Mukul
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Taslima Akter
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
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Effects of Zinc Status on Expression of Zinc Transporters, Redox-Related Enzymes and Insulin-like Growth Factor in Asian Sea Bass Cells. BIOLOGY 2023; 12:biology12030338. [PMID: 36979030 PMCID: PMC10045770 DOI: 10.3390/biology12030338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/06/2023] [Accepted: 02/17/2023] [Indexed: 02/23/2023]
Abstract
Since Asian sea bass is one of the economically most important fish, aquaculture conditions are constantly optimized. Evidence from feeding studies combined with the current understanding of the importance of zinc for growth and immune defense suggest that zinc supplementation may be a possible approach to optimize aquacultures of Asian sea bass. To investigate the effects of zinc deficiency and zinc supplementation, cells from Asian sea bass were incubated in culture medium with different zinc contents. The expression of genes, important for zinc homeostasis, redox metabolism, and growth hormones was analyzed using RT-PCR. Zinc deficiency induced the expression of certain zinc transporters (ZIP14, ZIP10, ZIP6, ZIP4, ZnT4, ZnT9) as well as of SOD1, IGF I and IGF II, while expression of ZnT1 and metallothionein (MT) was reduced. Zinc supplementation decreased the expression of ZIP10, while expression of ZnT1 and MT were elevated. No differences in the effects of zinc supplementation with zinc sulfate compared to supplementation with zinc amino acid complexes were observed. Thus, extracellular zinc conditions may govern the cellular zinc homeostasis, the redox metabolism and growth hormone expression in cells from Asian sea bass as reported for other fish species. Our data indicate that supplementing aquacultures with zinc may be recommended to avoid detriments of zinc deficiency.
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3
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Canosa LF, Bertucci JI. The effect of environmental stressors on growth in fish and its endocrine control. Front Endocrinol (Lausanne) 2023; 14:1109461. [PMID: 37065755 PMCID: PMC10098185 DOI: 10.3389/fendo.2023.1109461] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 03/13/2023] [Indexed: 04/03/2023] Open
Abstract
Fish body growth is a trait of major importance for individual survival and reproduction. It has implications in population, ecology, and evolution. Somatic growth is controlled by the GH/IGF endocrine axis and is influenced by nutrition, feeding, and reproductive-regulating hormones as well as abiotic factors such as temperature, oxygen levels, and salinity. Global climate change and anthropogenic pollutants will modify environmental conditions affecting directly or indirectly fish growth performance. In the present review, we offer an overview of somatic growth and its interplay with the feeding regulatory axis and summarize the effects of global warming and the main anthropogenic pollutants on these endocrine axes.
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Affiliation(s)
- Luis Fabián Canosa
- Instituto Tecnológico Chascomús (INTECH), CONICET-EByNT-UNSAM, Chascomús, Argentina
- *Correspondence: Luis Fabián Canosa, ; Juan Ignacio Bertucci,
| | - Juan Ignacio Bertucci
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía - Consejo Superior de Investigaciones Científicas (IEO-CSIC), Vigo, Spain
- *Correspondence: Luis Fabián Canosa, ; Juan Ignacio Bertucci,
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4
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Burmaoğlu S, Dilek E, Yılmaz AO, Supuran CT. Synthesis of two phloroglucinol derivatives with cinnamyl moieties as inhibitors of the carbonic anhydrase isozymes I and II: an in vitro study. J Enzyme Inhib Med Chem 2016; 31:208-212. [DOI: 10.1080/14756366.2016.1181626] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Serdar Burmaoğlu
- Tercan Vocational High School, Erzincan University, Tercan-Erzincan, Turkey,
- Department of Biochemistry, Faculty of Pharmacy, Erzincan University, Erzincan, Turkey,
| | - Esra Dilek
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey, and
| | - Ali Osman Yılmaz
- Department of Biochemistry, Faculty of Pharmacy, Erzincan University, Erzincan, Turkey,
| | - Claudiu T. Supuran
- Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Universita degli Studi di Firenze, Sesto Fiorentino, Florence, Italy
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Intermittent Compressive Stress Enhanced Insulin-Like Growth Factor-1 Expression in Human Periodontal Ligament Cells. Int J Cell Biol 2015; 2015:369874. [PMID: 26106417 PMCID: PMC4464684 DOI: 10.1155/2015/369874] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 02/06/2023] Open
Abstract
Mechanical force was shown to promote IGF-1 expression in periodontal ligament both in vitro and in vivo. Though the mechanism of this effect has not yet been proved, here we investigated the molecular mechanism of intermittent mechanical stress on IGF-1 expression. In addition, the role of hypoxia on the intermittent compressive stress on IGF-1 expression was also examined. In this study, human periodontal ligament cells (HPDLs) were stimulated with intermittent mechanical stress for 24 hours. IGF-1 expression was examined by real-time polymerase chain reaction. Chemical inhibitors were used to determine molecular mechanisms of these effects. For hypoxic mimic condition, the CoCl2 supplementation was employed. The results showed that intermittent mechanical stress dramatically increased IGF-1 expression at 24 h. The pretreatment with TGF-β receptor I or TGF-β1 antibody could inhibit the intermittent mechanical stress-induced IGF-1 expression. Moreover, the upregulation of TGF-β1 proteins was detected in intermittent mechanical stress treated group. Correspondingly, the IGF-1 expression was upregulated upon being treated with recombinant human TGF-β1. Further, the hypoxic mimic condition attenuated the intermittent mechanical stress and rhTGF-β1-induced IGF-1 expression. In summary, this study suggests intermittent mechanical stress-induced IGF-1 expression in HPDLs through TGF-β1 and this phenomenon could be inhibited in hypoxic mimic condition.
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Oğuz AR, Yeltekin A. Metal levels in the liver, muscle, gill, intestine, and gonad of Lake Van fish (Chalcalburnus tarichi) with abnormal gonad. Biol Trace Elem Res 2014; 159:219-23. [PMID: 24763711 DOI: 10.1007/s12011-014-9980-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 04/10/2014] [Indexed: 01/18/2023]
Abstract
Recently, an increasing number of studies have shown that Lake Van--the biggest soda lake in the world--is polluted due to an increasing population. Studies have shown abnormalities in the Lake Van fish (Chalcalburnus tarichi), the sole fish species that inhabits the lake. Unlike the vitellogenic and mature oocytes in normal gonads, abnormal gonads show large amounts of connective tissue and young oocytes. In this study, metal levels (nickel [Ni], copper [Cu], cobalt [Co], iron [Fe], zinc [Zn], cadmium [Cd], lead [Pb], and manganese [Mn]) in the muscle, liver, gill, intestine, and gonad of Lake Van fish with normal and abnormal gonads were assessed. Further, the metal contents in the wastewater from the wastewater treatment facility situated near Lake Van in Van City were assessed. All the metal levels, except that of Zn, were high in the Lake Van environment (P<0.05). The highest metal content in the tissues was for Fe, while the lowest level was for Co. The Pb level was found to be very high in both fish groups. Cd was not found in the tissues of both fish groups. The levels of Fe, Cu, Pb, and Mn were not significant in the tissues of both normal and abnormal fish groups. Zn level was significantly high in the livers and gonads of fish with abnormal gonads, and Co level was significantly high only in the livers (P<0.05). Consequently, high levels of Zn in the liver and gonads and high levels of Co in the liver may be factors causing the abnormal gonads in the Lake Van fish.
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Affiliation(s)
- Ahmet R Oğuz
- Department of Biology, Faculty of Science, Yüzüncü Yıl University, 65080, Van, Turkey,
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Mercan L, Ekinci D, Supuran CT. Characterization of carbonic anhydrase from Turkish native "Gerze" chicken and influences of metal ions on enzyme activity. J Enzyme Inhib Med Chem 2014; 29:773-6. [PMID: 24506207 DOI: 10.3109/14756366.2013.855208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract Carbonic anhydrase was purified and characterized from erythrocytes of the Turkish native chicken, Gerze, for the first time. The enzyme was purified 57.65-fold with a yield of 52%, and a specific activity of 954.08 U/mg proteins having optimum pH at 8.0; optimum temperature at 30 °C; optimum ionic strength at 10 mM and stable pH at 8.0. The purified enzyme had apparent KM and Vmax values of 0.73 mM and 0.236 μmol × min(-1), respectively. Al(+3), Hg(+2), Cu(+2), Pb(+2), and Cd(+2) showed inhibitory effects on the enzyme. Pb(+2) exhibited the strongest inhibitory action. Cd(+2) and Hg(+2) were moderate inhibitor, whereas Al(+3) and Cu(+2) showed weaker actions. All tested metals inhibited the enzyme in competitive manner. Our findings indicate that these metals inhibit the chicken enzyme in a similar manner to other α-CAs from mammals investigated earlier, but susceptibility to various metals differ between the native chicken and other mammalian enzymes.
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Affiliation(s)
- Levent Mercan
- Department of Agricultural Biotechnology, Faculty of Agriculture, Ondokuz Mayıs University , Samsun , Turkey and
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Sun P, Wang S, Jiang Y, Tao Y, Tian Y, Zhu K, Wan H, Zhang L, Zhang L. Zip1, Zip2, and Zip8 mRNA expressions were associated with growth hormone level during the growth hormone provocation test in children with short stature. Biol Trace Elem Res 2013; 155:11-22. [PMID: 23921484 DOI: 10.1007/s12011-013-9764-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 07/14/2013] [Indexed: 01/08/2023]
Abstract
Short stature of children is affected by multiple factors. One of them is growth hormone (GH) deficiency. Growth hormone therapy can increase the final height of children with growth hormone deficiency. Zinc is found to induce dimerization and to enhance the bioactivity of human GH. Two gene families have been identified involved in zinc homeostasis. Previous studies in our laboratory have shown that Zip1, Zip2, Zip6, and ZnT1 mRNA were associated with zinc level in established human breast cancer in nude mice model; Zip8 was significantly lower in zinc-deficient Wistar rats in kidney. In this study, five zinc transporters: Zip1, Zip2, Zip6, Zip8, and ZnT1 were chosen. We aimed to investigate the mRNA expression of zinc transporters and to explore the relationship between zinc transporters and growth hormone in short stature children. Growth hormone provocation test is used to confirm the diagnosis of growth hormone deficiency. Six short children for the test were enrolled. At the same time, 15 sex- and age-matched normal children were enrolled as control. The expression levels of zinc transporters in peripheral blood mononuclear cells were determined by quantitative real-time PCR. Zip1 and Zip2 mRNA expression positively correlated with growth hormone level (r = 0.5133, P = 0.0371; r = 0.6719, P = 0.0032); Zip8 mRNA expression negatively correlated with growth hormone level (r = -0.5264, P = 0.0285) during the test in short stature children. The average expression level of Zip2 was significantly higher and Zip6, Zip8 mRNA levels were significantly lower in short stature children than in health controls at 0 min (P < 0.05, P < 0.05).
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Affiliation(s)
- Ping Sun
- Department of Biochemistry and Molecular Biology, Shandong University School of Medicine, Jinan, Shandong, China
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9
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Mercan S, Eren B. Protective role of melatonin supplementation against nicotine-induced liver damage in mouse. Toxicol Ind Health 2012; 29:888-96. [DOI: 10.1177/0748233712446725] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present study was carried out to determine histopathological effects of nicotine, one of the most significant components of tobacco, on mouse liver and ameliorative effect of melatonin on liver damage. A total of 140 mature Swiss Albino mice ( Mus musculus) were divided into four experimental groups: control group, nicotine group, melatonin group and nicotine + melatonin group. Each group was further subdivided into seven groups (five mice each) according to the time of killing (12 h and days 1, 3, 5, 7, 14 and 21 after drug administration). In nicotine and nicotine + melatonin groups, 3 mg/kg of nicotine was injected intraperitoneally every day until killing. The nicotine + melatonin group was additionally injected with 10 mg/kg of melatonin after 30 min of nicotine injection. The melatonin group was injected only with 10 mg/kg of melatonin every day until killing. All the treatments were given 2 h before sunset, when melatonin receptors were active. After the last injection, five mice from each group were killed at 12th hour and on days 1, 3, 5, 7, 14 and 21; the livers were removed for histopathological processing by light microscopy. The histopathological results revealed time-dependent degeneration in the livers of mice in nicotine group. Regenerative changes in the nicotine and melatonin groups were observed when compared with nicotine groups.
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Affiliation(s)
- Sevcan Mercan
- Department of Biology, Faculty of Arts and Science, Ondokuz Mayıs University, Samsun, Turkey
| | - Banu Eren
- Department of Biology, Faculty of Arts and Science, Ondokuz Mayıs University, Samsun, Turkey
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10
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Alp C, Maresca A, Alp NA, Gültekin MS, Ekinci D, Scozzafava A, Supuran CT. Secondary/tertiary benzenesulfonamides with inhibitory action against the cytosolic human carbonic anhydrase isoforms I and II. J Enzyme Inhib Med Chem 2012; 28:294-8. [PMID: 22380772 DOI: 10.3109/14756366.2012.658788] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Carbonic anhydrase inhibitors of primary sulfonamide type, RSO(2)NH(2), have clinical applications as diuretics, antiglaucoma, antiepileptic, antiobesity and antitumor drugs. Here we investigated inhibition of two human cytosolic isozymes, hCA I and II, with a series of secondary/tertiary sulfonamides, incorporating tosyl moieties (CH(3)C(6)H(4)SO(2)NR1R2). Most compounds inhibited both isoforms in low micromolar range, with inhibition constants between 0.181-6.01 μM against hCA I, and 0.209-0.779 μM against hCA II, respectively. These findings point out that substituted benzenesulfonamides may be used as leads for generating interesting CAIs probably possessing a distinct mechanism of action compared to primary sulfonamides. Indeed, classical RSO(2)NH(2) inhibitors bind in deprotonated form to the Zn(II) ion from the CA active site and participate in many other favorable interactions with amino acid residues lining the cavity. The secondary/tertiary sulfonamides cannot bind to the zinc due to steric hindrance and probably are accommodated at the entrance of the active site, in coumarin binding-site.
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Affiliation(s)
- Cemalettin Alp
- Department of Chemistry, Ataturk University, Science Faculty, Erzurum, Turkey
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11
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Koz Ö, Ekinci D, Perrone A, Piacente S, Alankuş-Çalışkan Ö, Bedir E, Supuran CT. Analysis of saponins and phenolic compounds as inhibitors of α-carbonic anhydrase isoenzymes. J Enzyme Inhib Med Chem 2012; 28:412-7. [DOI: 10.3109/14756366.2011.651464] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Ömer Koz
- Department of Chemistry, Faculty of Science, Ege University,
Bornova, İzmir, Turkey
| | - Deniz Ekinci
- Department of Agricultural Biotechnology, Faculty of Agriculture, Ondokuz Mayıs University,
Samsun, Turkey
| | - Angela Perrone
- Department of Pharmaceutical Sciences, Salerno University,
Fisciano (Salerno), Italy
| | - Sonia Piacente
- Department of Pharmaceutical Sciences, Salerno University,
Fisciano (Salerno), Italy
| | | | - Erdal Bedir
- Department of Bioengineering, Faculty of Engineering, Ege University,
Bornova, İzmir, Turkey
| | - Claudiu T. Supuran
- Laboratorio di Chimica Bioinorganica, Polo Scientifico, Università degli Studi di Firenze,
Florence, Italy
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12
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Alp C, Özsoy Ş, Alp NA, Erdem D, Gültekin MS, Küfrevioğlu Öİ, Şentürk M, Supuran CT. Sulfapyridine-like benzenesulfonamide derivatives as inhibitors of carbonic anhydrase isoenzymes I, II and VI. J Enzyme Inhib Med Chem 2011; 27:818-24. [DOI: 10.3109/14756366.2011.617745] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Cemalettin Alp
- Ataturk University, Science Faculty, Department of Chemistry,
Erzurum, Turkey
- Erzincan University, Çayırlı Vocational School,
Erzincan, Turkey
| | - Şeyda Özsoy
- Ataturk University, Science Faculty, Department of Chemistry,
Erzurum, Turkey
| | - Nurdan Alcan Alp
- Ataturk University, Science Faculty, Department of Chemistry,
Erzurum, Turkey
| | - Deryanur Erdem
- Ataturk University, Science Faculty, Department of Chemistry,
Erzurum, Turkey
- Aksaray University, Faculty of Arts and Science, Chemistry Department,
Aksaray, Turkey
| | | | | | - Murat Şentürk
- Ataturk University, Science Faculty, Department of Chemistry,
Erzurum, Turkey
- Ag˘rı I˙brahim Çeçen University, Science and Art Faculty, Chemistry Department,
Ag˘rı, Turkey
| | - Claudiu T. Supuran
- Università degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica Bioinorganica,
Sesto Fiorentino (Florence), Italy
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13
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Demirdağ R, Yerlikaya E, Şentürk M, Küfrevioğlu Öİ, Supuran CT. Heavy metal ion inhibition studies of human, sheep and fish α-carbonic anhydrases. J Enzyme Inhib Med Chem 2011; 28:278-82. [DOI: 10.3109/14756366.2011.640633] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ramazan Demirdağ
- Chemistry Department, Science Faculty, Atatürk University,
Erzurum, Turkey
| | - Emrah Yerlikaya
- Chemistry Department, Science Faculty, Atatürk University,
Erzurum, Turkey
| | - Murat Şentürk
- Chemistry Department, Science Faculty, Atatürk University,
Erzurum, Turkey
- Chemistry Department, Art and Science Faculty, Ağrı Ibrahim Çeçen University,
Ağrı, Turkey
| | | | - Claudiu T. Supuran
- Laboratorio di Chimica Bioinorganica, Polo Scientifico, Università degli Studi di Firenze,
Polo Scientifico, Florence, Italy
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14
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Kazancıoğlu EA, Güney M, Şentürk M, Supuran CT. Simple methanesulfonates are hydrolyzed by the sulfatase carbonic anhydrase activity. J Enzyme Inhib Med Chem 2011; 27:880-5. [DOI: 10.3109/14756366.2011.637202] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Elif Akın Kazancıoğlu
- Department of Chemistry, Art and Science Faculty, Ağrı Ibrahim Çeçen University,
Ağrı, Turkey
- Department of Chemistry, Science Faculty, Atatürk University,
Erzurum, Turkey
| | - Murat Güney
- Department of Chemistry, Art and Science Faculty, Ağrı Ibrahim Çeçen University,
Ağrı, Turkey
| | - Murat Şentürk
- Department of Chemistry, Art and Science Faculty, Ağrı Ibrahim Çeçen University,
Ağrı, Turkey
| | - Claudiu T. Supuran
- Polo Scientifico, Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze,
Florence, Italy
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15
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Aksakal E, Ceyhun SB, Beydemir S, Erdogan O. Alterations in Growth Related Genes (GH-I, IGF-I and IGF-II) Expression with Acute Copper Exposure in Rainbow Trout. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/javaa.2011.3334.3339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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16
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Çavdar H, Ekinci D, Talaz O, Saraçoğlu N, Şentürk M, Supuran CT. α-Carbonic anhydrases are sulfatases with cyclic diol monosulfate esters. J Enzyme Inhib Med Chem 2011; 27:148-54. [DOI: 10.3109/14756366.2011.629198] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hüseyin Çavdar
- Department of Elementary Education, Dumlupınar University,
Kütahya, Turkey
| | - Deniz Ekinci
- Department of Agricultural Biotechnology, Ondokuz Mayıs University,
Samsun, Turkey
| | - Oktay Talaz
- Department of Chemistry, Karamanoğlu Mehmetbey University,
Karaman, Turkey
| | | | - Murat Şentürk
- Department of Chemistry, Ağrı İbrahim Çeçen University,
Ağrı, Turkey
| | - Claudiu T. Supuran
- Dipartimento di Chimica, University of Florence,
Sesto Fiorentino Firenz, Italy
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17
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Mercan L, Okumuş A, Şentürk M, Ekinci D. In vitro enzymatic response of Turkish native chicken "Gerze" to heavy metal exposure. J Enzyme Inhib Med Chem 2011; 28:52-7. [PMID: 22050592 DOI: 10.3109/14756366.2011.627509] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) was purified and characterized from the Turkish native chicken, Gerze, erythrocytes for the first time, and some characteristics were investigated. Purification procedure consisted of ammonium sulphate fractionation and affinity chromatography on 29, 59-ADP Sepharose-4B. The enzyme was purified 1063.22-fold with a yield of 43.27% and specific activity of 93.5 EU/mg proteins. Kinetic parameters of the enzyme were determined with glucose-6-phosphate (G6P) as substrate and purified enzyme had an apparent K(M) and V(max) values of 0.222 mM and 0.097 U/ml, respectively. The same parameters were determined with NADP(+) and the K(M) and V(max) values were 0.0603 mM and 0.153 U/ml, respectively. The following metals, Cd(+2), Pb(+2), Hg(+2), Cu(+2), Zn(+2) and Fe(+3) showed inhibitory effects on the enzyme. Cd(+2) and Pb(+2) exhibited the strongest inhibitory action. Hg(+2) and Cu(+2) were moderate inhibitors, whereas Zn(+2) and Fe(+3) showed weaker actions. All tested metals inhibited the enzyme in competitive manner.
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Affiliation(s)
- Levent Mercan
- Ondokuz Mayis University, Agricultural Faculty, Department of Agricultural Biotechnology, Samsun, Turkey.
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18
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Şentürk M, Alıcı HA, Beydemir Ş, Küfrevioglu Öİ. In vitro and in vivo effects of some benzodiazepine drugs on human and rabbit erythrocyte carbonic anhydrase enzymes. J Enzyme Inhib Med Chem 2011; 27:680-4. [DOI: 10.3109/14756366.2011.607447] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Murat Şentürk
- Ataturk University, Faculty of Sciences, Department of Chemistry,
Erzurum, Turkey
- Agri Ibrahim Cecen University, Faculty of Science and Arts, Chemistry Department,
Ağri, Turkey
| | - Hacı Ahmet Alıcı
- Ataturk University, Medical Faculty, Department of Anesthesiology and Intensive Care,
Erzurum, Turkey
| | - Şükrü Beydemir
- Ataturk University, Faculty of Sciences, Department of Chemistry,
Erzurum, Turkey
- Ataturk University, Biotechnology Research Center,
Erzurum, Turkey
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