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Atay T, Ertürk S, Alkan M, Kordali Ş, Yılmaz F, Barış A, Ghanbari S, Doğan C, Toprak U. Boron compounds are effective on Tribolium castaneum (Coleoptera: Tenebrionidae): Reduced lipogenesis and induced body weight loss. Arch Insect Biochem Physiol 2024; 115:e22098. [PMID: 38500442 DOI: 10.1002/arch.22098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 03/20/2024]
Abstract
In the current study, we investigated the insecticidal efficacy of two borates, disodium octaborate tetrahydrate (Etidot-67) and calcium metaborate (CMB) via surface application or diet delivery on the red flour beetle, Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae). The application method did not change the boron-related mortality, but CMB was more effective than Etidot-67. At the highest dose, it took around 13 days to reach the highest mortality (≥98.1%) for CMB, while it was 19 days for Etidot-67 (≥95.8%). Both boron compounds led to a significant reduction in triglyceride levels in parallel to the downregulation of acetyl-CoA carboxylase (ACC) and fatty acid synthase (FAS), the two primary genes involved in de novo lipogenesis, while they also induced body weight loss. In conclusion, the current study indicated the insecticidal potential of boron compounds but CMB is more promising and more effective in controlling T. castaneum, while lipogenesis is inhibited and weight loss is induced by boron compounds.
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Affiliation(s)
- Turgut Atay
- Department of Plant Protection, Faculty of Agriculture, Tokat Gaziosmanpaşa University, Taşlıçiftlik, Tokat, Türkiye
| | - Sait Ertürk
- Department of Plant Pests, Plant Protection Central Research Institute, Ankara, Türkiye
| | - Mustafa Alkan
- Department of Plant Protection, Faculty of Agriculture, Yozgat Bozok University, Yozgat, Türkiye
| | - Şaban Kordali
- Department of Plant Protection Fethiye, Fethiye Faculty of Agriculture, Muğla Sıtkı Koçma University, Muğla, Türkiye
| | - Ferah Yılmaz
- Department of Plant Protection Fethiye, Fethiye Faculty of Agriculture, Muğla Sıtkı Koçma University, Muğla, Türkiye
| | - Aydemir Barış
- Department of Plant Pests, Plant Protection Central Research Institute, Ankara, Türkiye
| | - Solmaz Ghanbari
- Department of Plant Protection, Molecular Entomology Lab., Faculty of Agriculture, Ankara University, Dışkapı, Ankara, Türkiye
| | - Cansu Doğan
- Department of Plant Protection, Molecular Entomology Lab., Faculty of Agriculture, Ankara University, Dışkapı, Ankara, Türkiye
| | - Umut Toprak
- Department of Plant Protection, Molecular Entomology Lab., Faculty of Agriculture, Ankara University, Dışkapı, Ankara, Türkiye
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Soyyiğit S, Aydın Ö, Seçil D, Doğan C, Gökmen D, Sin BA, Mısırlıgil Z, Mungan VD. Pre-seasonal immunotherapy is effective in both monosensitized and polysensitized patients with allergic rhinitis. Eur Ann Allergy Clin Immunol 2022; 55:122-130. [PMID: 35448936 DOI: 10.23822/eurannaci.1764-1489.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Background. The effectiveness of pre-seasonal allergoid immunotherapy in polysensitized patients are not well-known. The aim of the present study was to compare the clinical efficacy and immunological changes of pre-seasonal allergoid immunotherapy in mono- and polysensitized patients with grass pollen allergy. Methods. Fourty six patients with seasonal allergic rhinitis undergoing pre-seasonal grass pollen immunotherapy and 28 cases followed by conventional drug treatment were included. These groups were divided into monosensitized and polysensitized ones. All patients were followed between March-September with symptom-medication scores, and visual analogue scale (VAS). The quality of life was assessed using the Mini-RQLQ questionnaire. Phleum pratense (Phl p) specific IgE and IgG4 (UNI-CAP 100, Phadia) measurements were performed before and after 7 weeks of immunotherapy. Results. In the immunotherapy group, 15th weekly symptom-medication scores and VAS scores between May and August were found to be significantly lower than those in the control group (p less than 0.05). Phl p specific IgE and IgG4 levels were significantly higher after immunotherapy compared to those before immunotherapy (p = 0.001). Furthermore, Phl p specific IgG4 levels after immunotherapy were also significantly higher than in the control group (p = 0.001). Improvements in activities-practical problems and non-nose/eye symptoms quality of life scores were significantly different between two groups (p less than 0.05). There was no difference in terms of clinical and immunological parameters in mono- and polysensitized patients (p greater than 0.05). Conclusions. This study indicates that clinical improvement with pre-seasonal grass pollen immunotherapy is accompanied by important increase in specific IgG4 blocking antibodies. Furthermore, a single-allergen immunotherapy can lead to similar clinical efficacy and immunological changes in polysensitized as well as monosensitized patients with grass pollen allergy.
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Affiliation(s)
- S Soyyiğit
- Division of Immunology and Allergic Diseases, Department of Chest Diseases, Ankara University, School of Medicine, Ankara, Turkey
| | - Ö Aydın
- Division of Immunology and Allergic Diseases, Department of Chest Diseases, Ankara University, School of Medicine, Ankara, Turkey
| | - D Seçil
- Division of Immunology and Allergic Diseases, Department of Chest Diseases, Ankara University, School of Medicine, Ankara, Turkey
| | - C Doğan
- Department of Biology, Hacettepe University, School of Medicine, Ankara, Turkey
| | - D Gökmen
- Department of Biostatistics, Ankara University, School of Medicine, Ankara, Turkey
| | - B A Sin
- Division of Immunology and Allergic Diseases, Department of Chest Diseases, Ankara University, School of Medicine, Ankara, Turkey
| | - Z Mısırlıgil
- Faculty of Medicine, Istinye University, Ankara Liv Hospital, Immunology and Allergic Diseases, Turkey
| | - V D Mungan
- Division of Immunology and Allergic Diseases, Department of Chest Diseases, Ankara University, School of Medicine, Ankara, Turkey
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Doğan C, Güney G, Güzel KK, Can A, Hegedus DD, Toprak U. What You Eat Matters: Nutrient Inputs Alter the Metabolism and Neuropeptide Expression in Egyptian Cotton Leaf Worm, Spodoptera littoralis (Lepidoptera: Noctuidae). Front Physiol 2021; 12:773688. [PMID: 34803746 PMCID: PMC8600137 DOI: 10.3389/fphys.2021.773688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/05/2021] [Indexed: 12/13/2022] Open
Abstract
Lipids and carbohydrates are the two primary energy sources for both animals and insects. Energy homeostasis is under strict control by the neuroendocrine system, and disruption of energy homeostasis leads to the development of various disorders, such as obesity, diabetes, fatty liver syndrome, and cardiac dysfunction. One critical factor in this respect is feeding habits and diet composition. Insects are good models to study the physiological and biochemical background of the effect of diet on energy homeostasis and related disorders; however, most studies are based on a single model species, Drosophila melanogaster. In the current study, we examined the effects of four different diets, high fat (HFD), high sugar (HSD), calcium-rich (CRD), and a plant-based (PBD) on energy homeostasis in younger (third instar) and older (fifth instar) larvae of the Egyptian cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae) in comparison to a regular artificial bean diet. Both HSD and HFD led to weight gain, while CRD had the opposite effect and PBD had no effect in fifth instar larvae and pupae. The pattern was the same for HSD and CRD in third instar larvae while a reduction in weight was detected with HFD and PBD. Larval development was shortest with the HSD, while HFD, CRD, and PBD led to retardation compared to the control. Triglyceride (TG) levels were higher with HFD, HSD, and PBD, with larger lipid droplet sizes, while CRD led to a reduction of TG levels and lipid droplet size. Trehalose levels were highest with HSD, while CRD led to a reduction at third instar larvae, and HFD and PBD had no effect. Fifth instar larvae had similar levels of trehalose with all diets. There was no difference in the expression of the genes encoding neuropeptides SpoliAKH and SpoliILP1-2 with different diets in third instar larvae, while all three genes were expressed primarily with HSD, and SpolisNPF was primarily expressed with HFD in fifth instar larvae. In summary, different diet treatments alter the development of insects, and energy and metabolic pathways through the regulation of peptide hormones.
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Affiliation(s)
- Cansu Doğan
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Gözde Güney
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Kardelen K Güzel
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Alp Can
- Laboratory for Stem Cells and Reproductive Cell Biology, Department of Histology and Embryology, School of Medicine, Ankara University, Ankara, Turkey
| | - Dwayne D Hegedus
- Agriculture and Agri-Food Canada, Saskatoon, SK, Canada.,Department of Food and Bioproduct Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
| | - Umut Toprak
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
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Doğan C, Hänniger S, Heckel DG, Coutu C, Hegedus DD, Crubaugh L, Groves RL, Mutlu DA, Suludere Z, Bayram Ş, Toprak U. Characterization of calcium signaling proteins from the fat body of the Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae): Implications for diapause and lipid metabolism. Insect Biochem Mol Biol 2021; 133:103549. [PMID: 33610660 DOI: 10.1016/j.ibmb.2021.103549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/26/2021] [Accepted: 01/31/2021] [Indexed: 05/25/2023]
Abstract
Calcium (Ca2+) regulates many cellular and physiological processes from development to reproduction. Ca2+ is also an important factor in the metabolism of lipids, the primary energy source used during insect starvation and diapause. Ca2+ signaling proteins bind to Ca2+ and maintain intracellular Ca2+ levels. However, knowledge about Ca2+ signaling proteins is mostly restricted to the model Drosophila melanogaster and the response of Ca2+ signaling genes to starvation or diapause is not known. In this study, we identified three Ca2+ signaling proteins; the primary Ca2+ binding protein Calmodulin (LdCaM), phosphatase Calcineurin B (LdCaNB), and the senescence marker protein Regucalcin (LdRgN), from the fat body of the Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). This insect is a major pest of potato worldwide and overwinters under hibernation diapause as adults while utilizing lipids as the primary energy source. Putative EF-hand domains involved in Ca2+ binding were present in LdCaM, LdCaNB, but absent in LdRgN. LdCaM and LdCaNB were expressed in multiple tissues, while LdRgN was primarily expressed in the fat body. LdCaM was constitutively-expressed throughout larval development and at the adult stage. LdCaNB was primarily expressed in feeding larvae, and LdRgN in both feeding larvae and adults at comparable levels; however, both genes were down-regulated by molting. A response to starvation was observed only for LdRgN. Transcript abundance analysis in the entire body in relation to diapause revealed differential regulation with a general suppression during diapause, and higher mRNA levels in favor of females at post-diapause for LdCaM, and in favor of males at non-diapause for LdCaNB. Fat body-specific transcript abundance was not different between non-diapause and post-diapause for LdCaNB, but both LdCaM and LdRgN were down-regulated in males and both sexes, respectively by post-diapause. Silencing LdCaNB or LdRgN in larvae led to decreased fat content, indicating their involvement in lipid accumulation, while RNAi of LdCaM led to lethality.
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Affiliation(s)
- Cansu Doğan
- Ankara University, Molecular Entomology Lab., Dept. of Plant Protection, Faculty of Agriculture, Ankara, Turkey; Max Planck Institute for Chemical Ecology, Dept. of Entomology, Jena, Germany; Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, SK, Canada; Dept. of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Sabine Hänniger
- Max Planck Institute for Chemical Ecology, Dept. of Entomology, Jena, Germany
| | - David G Heckel
- Max Planck Institute for Chemical Ecology, Dept. of Entomology, Jena, Germany
| | - Cathy Coutu
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, SK, Canada
| | - Dwayne D Hegedus
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, SK, Canada
| | - Linda Crubaugh
- Dept. of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Russell L Groves
- Dept. of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Zekiye Suludere
- Gazi University, Faculty of Sciences, Department of Biology, Ankara, Turkey
| | - Şerife Bayram
- Ankara University, Molecular Entomology Lab., Dept. of Plant Protection, Faculty of Agriculture, Ankara, Turkey
| | - Umut Toprak
- Ankara University, Molecular Entomology Lab., Dept. of Plant Protection, Faculty of Agriculture, Ankara, Turkey.
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Doğan C, Hänniger S, Heckel DG, Coutu C, Hegedus DD, Crubaugh L, Groves RL, Bayram Ş, Toprak U. Two calcium-binding chaperones from the fat body of the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) involved in diapause. Arch Insect Biochem Physiol 2021; 106:e21755. [PMID: 33118236 DOI: 10.1002/arch.21755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Molecular chaperones are crucial for the correct folding of newly synthesized polypeptides, in particular, under stress conditions. Various studies have revealed the involvement of molecular chaperones, such as heat shock proteins, in diapause maintenance and starvation; however, the role of other chaperones in diapause and starvation relatively is unknown. In the current study, we identified two lectin-type chaperones with calcium affinity, a calreticulin (LdCrT) and a calnexin (LdCnX), that were present in the fat body of the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) during diapause. Both proteins possessed an N-globular domain, a P-arm domain, and a highly charged C-terminal domain, while an additional transmembrane domain was present in LdCnX. Phylogenetic analysis revealed distinction at the order level. Both genes were expressed in multiple tissues in larval and adult stages, and constitutively throughout development, though a starvation response was detected only for LdCrT. In females, diapause-related expression analysis in the whole body revealed an upregulation of both genes by post-diapause, but a downregulation by diapause only for LdCrT. By contrast, males revealed no alteration in their diapause-related expression pattern in the entire body for both genes. Fat body-specific expression analysis of both genes in relation to diapause revealed the same expression pattern with no alteration in females and downregulation in males by post-diapause. This study suggests that calcium-binding chaperones play similar and possibly gender-specific roles during diapause.
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Affiliation(s)
- Cansu Doğan
- Molecular Entomology Lab, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
- Department of Entomology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Sabine Hänniger
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - David G Heckel
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Cathy Coutu
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
| | - Dwayne D Hegedus
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
| | - Linda Crubaugh
- Department of Entomology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Russell L Groves
- Department of Entomology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Şerife Bayram
- Molecular Entomology Lab, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Umut Toprak
- Molecular Entomology Lab, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
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Toprak U, Hegedus D, Doğan C, Güney G. A journey into the world of insect lipid metabolism. Arch Insect Biochem Physiol 2020; 104:e21682. [PMID: 32335968 DOI: 10.1002/arch.21682] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Lipid metabolism is fundamental to life. In insects, it is critical, during reproduction, flight, starvation, and diapause. The coordination center for insect lipid metabolism is the fat body, which is analogous to the vertebrate adipose tissue and liver. Fat body contains various different cell types; however, adipocytes and oenocytes are the primary cells related to lipid metabolism. Lipid metabolism starts with the hydrolysis of dietary lipids, absorption of lipid monomers, followed by lipid transport from midgut to the fat body, lipogenesis or lipolysis in the fat body, and lipid transport from fat body to other sites demanding energy. Lipid metabolism is under the control of hormones, transcription factors, secondary messengers and posttranscriptional modifications. Primarily, lipogenesis is under the control of insulin-like peptides that activate lipogenic transcription factors, such as sterol regulatory element-binding proteins, whereas lipolysis is coordinated by the adipokinetic hormone that activates lipolytic transcription factors, such as forkhead box class O and cAMP-response element-binding protein. Calcium is the primary-secondary messenger affecting lipid metabolism and has different outcomes depending on the site of lipogenesis or lipolysis. Phosphorylation is central to lipid metabolism and multiple phosphorylases are involved in lipid accumulation or hydrolysis. Although most of the knowledge of insect lipid metabolism comes from the studies on the model Drosophila; other insects, in particular those with obligatory or facultative diapause, also have great potential to study lipid metabolism. The use of these models would significantly improve our knowledge of insect lipid metabolism.
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Affiliation(s)
- Umut Toprak
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Dwayne Hegedus
- Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan, Canada
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Cansu Doğan
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Gözde Güney
- Molecular Entomology Laboratory, Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, Turkey
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Doğan C, Fidan A, Cömert SŞ, Kıral N, Salepçi B, Parmaksıza ET, Çağlayan B. Can PET-CT predict diagnostic success in ultrasonography-guided transthoracic fine needle aspiration biopsies in lung cancers? Pulmonology 2020; 26:275-282. [PMID: 32044295 DOI: 10.1016/j.pulmoe.2019.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 12/14/2019] [Accepted: 12/19/2019] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE To examine any correlations between tumor maximum standard uptake values (SUVmax) in positron emission tomography-computed tomography (PET-CT) and homogeneous/heterogeneous tumor FDG uptake in PET-CT, and the diagnostic success of the procedure in thoracic ultrasonography (US)-guided transthoracic fine needle aspiration biopsy (TFNAB). METHODS The files of patients who underwent thoracic US-guided TFNAB between 2013 and 2018 were examined. Patients who underwent thoracic US-guided TFNAB and were diagnosed as having primary lung cancer were considered as the US-TFNAB diagnostic group. Patients whose disease was diagnosed as primary lung cancer using a different diagnostic method (e.g. CT-guided biopsies, fiberoptic bronchoscopy) due to a lack of diagnosis despite undergoing thoracic US-guided TFNAB were allocated to the US-TFNAB non-diagnostic group. The clinical and radiologic characteristics and PET-CT parameters of the two groups were compared. RESULTS A total of 104 patients were included in the study; 79 (76%) patients whose disease was diagnosed using US-guided TFNAB, and 25 (24%) patients whose primary lung cancer could not be diagnosed with US-guided TFNAB. The mean SUVmax value of the US-TFNAB diagnostic group was 19.5 ± 10.1, whereas it was 15.1 ± 8.9 in the US-TFNAB non-diagnostic group (p = 0.016). Whether a lesion showed homogeneous or heterogeneous FDG uptake did not effect diagnostic success (p = 0.289). SUVmax value was the only effective independent factor in the diagnostic success of the procedure (p = 0.035). CONCLUSIONS High SUVmax values in PET-CT in lung cancers may increase the diagnostic success of US guided-TFNAB procedures.
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Affiliation(s)
- C Doğan
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey.
| | - A Fidan
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - S Ş Cömert
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - N Kıral
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - B Salepçi
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - E T Parmaksıza
- Department Of Chest Diseases, Dr. Lütfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - B Çağlayan
- Departmentof Chest Diseases, Koç University, Istanbul, Turkey
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Erkan A, Beriat G, Ekici B, Doğan C, Kocatürk S, Töre H. Link between angiographic extent and severity of coronary artery disease and degree of sensorineural hearing loss. Herz 2013; 40:481-6. [DOI: 10.1007/s00059-013-4020-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 10/26/2013] [Accepted: 11/02/2013] [Indexed: 11/28/2022]
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Bezgin T, Elveran A, Doğan C, Karagöz A, Külahcioglu S, Canga Y, Esen AM. Chronic spontaneous right coronary artery dissection. Herz 2013; 39:397-9. [PMID: 23982832 DOI: 10.1007/s00059-013-3830-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 03/30/2013] [Accepted: 04/09/2013] [Indexed: 11/28/2022]
Affiliation(s)
- T Bezgin
- Cardiology Clinic, Kartal Koşuyolu Heart Research Hospital, Denizer Cad., 34846, Kartal-İstanbul, Turkey,
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Bezgin T, Elveran A, Varol S, Doğan C, Karagöz A, Esen AM. Pericardial cyst. Herz 2013; 39:1005-7. [PMID: 23982834 DOI: 10.1007/s00059-013-3933-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/08/2013] [Accepted: 07/28/2013] [Indexed: 11/24/2022]
Affiliation(s)
- T Bezgin
- Cardiology Clinic, Kartal Koşuyolu Heart Research Hospital, Denizer Cad. Cevizli, 34846, Kartal-İstanbul, Turkey,
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Abstract
AIM To evaluate the effect of a calcium hydroxide and glycerine mix and a calcium hydroxide and water mix on the microhardness of human root dentine. METHODOLOGY Eleven freshly extracted maxillary canine and central incisor teeth were used. The teeth were sectioned transversally to produce a total of 22 dentine discs from the middle-third of the root. The specimens were divided into two groups of 11 discs each. Dentine samples were treated with either a Ca(OH)2-glycerine combination or a Ca(OH)2-distilled water combination for 1, 3 and 7 days. Dentine microhardness was measured with a Knoop indenter with a load of 100 g for 15 s before and during the experimental period. Each root disc received a series of three indentations around the pulp space, 1 mm from canal wall. RESULTS Statistical analysis showed that both combinations significantly decreased dentine microhardness after 3 and 7 days (P < 0.01). The reduction in dentine microhardness following the use of a Ca(OH)2-glycerine combination was significantly greater than that after a Ca(OH)2-distilled water combination after 3 and 7 days (P < 0.01). CONCLUSION The use of Ca(OH)2 combinations for intracanal dressing softens dentine.
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Affiliation(s)
- O Yoldaş
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, University of Cukurova, Adana, Turkey.
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Doğan C, Haytaç C, Antmen B, Şaşmaz İ, Tanyeli A. Oral Health Status in Children with Acute Lymphoblastic Leukemia and Lymphoma. Turk J Haematol 2001; 18:179-183. [PMID: 27264254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
We evaluated the oral health status of 85 acute lymphoblastic leukemia (ALL)/lymphoma pediatric patients who received remission-induction and maintenance chemotherapy and 85 age and sex-matched healthy children with the criteria of World Health Organization (WHO) and to determine the prevalence and distribution of dental problems in order to constitute preventive dentistry precautions in this study. The gingival tissues were scored with Community Index of Periodontal Treatment Necessity (CPITN) and dmf-t and DMF-T indices were used for caries evaluation. In the study group, malocclusion was found in 24 patients (28.2%). CPITN was scored as follows in the study group; 11% of the patients had healthy gingiva (Grade 0), the presence of plaque (Grade I) 79% of the patients, the presence of calculus (Grade II) 10% of patients were observed. Nevertheless, mucositis was found with various grades in 9 patients who received chemotherapy. Decayed teeth were found in the 76 patients and in 45 healthy children. 91.7% of patients and 52.9% of children needed dental treatment were determined. The DMF-T and dmf-t scores showed that ALL/lymphoma patients had more decayed and needed more dental treatment, missing or filled teeth both in their deciduous (p< 0.001) and permanent (p< 0.05) dentition when compared to systemically healthy children.
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