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Ozturk E, Karabulut D, Akin AT, Kaymak E, Kuloglu N, Yakan B. Evaluation by different mechanisms of the protective effects of vitamin B12 on methotrexate nephrotoxicity. J Mol Histol 2021; 53:133-143. [PMID: 34655350 DOI: 10.1007/s10735-021-10027-9] [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: 09/04/2021] [Accepted: 09/28/2021] [Indexed: 02/06/2023]
Abstract
Methotrexate is used for cure of many cancer types. It has many side effects. For this reason, obtaining a nephroprotective agent is obligatory. In the study, our aim is to determine probable effects of Vitamin B12 on MTX caused kidney damages in rats. Rats were randomly divided into 4 groups, including 8 animals in each group. Control group, VitB12 group (3 μg-kg-ip B12 throughout 15 days), MTX group (at the 8th day of experiment, a single dose of 20 mg-kg-ip MTX), Vit B12 + MTX group (3 μg-kg-ip B12 throughout 15 days and at the 8th day of experiment, a single dose of 20 mg-kg-ip MTX) Animals were anesthetized and kidney tissues were removed to evaluate biochemically, immunohistochemically and histopathologycally. There were histopathological deteriorations, rises of apoptotic cells, expressions of heat shock proteins, endoplasmic reticulum stress and inflammation markers in the MTX group. In the MTX group, Superoxide Dismutase (SOD), Total Antioxidant Status (TAS) and Catalase (CAT) levels decreased, but Total Oxidant Status TOS, Malondialdehyde (MDA) and interleukin-6 (IL6) levels increased. In addition, there was amelioration in kidney tissue in Vit B12 + MTX group compared to the MTX group. We suggest that Vit B12 can be used to reduce the toxic effects of MTX.
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Affiliation(s)
- E Ozturk
- Faculty of Medicine, Histology-Embriology Department, Harran University, Sanlıurfa, Turkey.
| | - D Karabulut
- Faculty of Medicine, Histology-Embriology Department, Erciyes University, Kayseri, Turkey
| | - A T Akin
- Faculty of Science, Biology Department, Erciyes University, Kayseri, Turkey
| | - E Kaymak
- Faculty of Medicine, Histology-Embriology Department, Bozok University, Yozgat, Turkey
| | - N Kuloglu
- Faculty of Medicine, Histology-Embriology Department, Erciyes University, Kayseri, Turkey
| | - B Yakan
- Faculty of Medicine, Histology-Embriology Department, Erciyes University, Kayseri, Turkey
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Farminhão JNM, Verlynde S, Kaymak E, Droissart V, Simo-Droissart M, Collobert G, Martos F, Stévart T. Rapid radiation of angraecoids (Orchidaceae, Angraecinae) in tropical Africa characterised by multiple karyotypic shifts under major environmental instability. Mol Phylogenet Evol 2021; 159:107105. [PMID: 33601026 DOI: 10.1016/j.ympev.2021.107105] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 01/13/2021] [Accepted: 02/03/2021] [Indexed: 10/22/2022]
Abstract
Angraecoid orchids present a remarkable diversity of chromosome numbers, which makes them a highly suitable system for exploring the impact of karyotypic changes on cladogenesis, diversification and morphological differentiation. We compiled an annotated cytotaxonomic checklist for 126 species of Angraecinae, which was utilised to reconstruct chromosomal evolution using a newly-produced, near-comprehensive phylogenetic tree that includes 245 angraecoid taxa. In tandem with this improved phylogenetic framework, using combined Bayesian, maximum likelihood and parsimony approaches on ITS-1 and five plastid markers, we propose a new cladistic nomenclature for the angraecoids, and we estimate a new timeframe for angraecoid radiation based on a secondary calibration, and calculate diversification rates using a Bayesian approach. Coincident divergence dates between clades with identical geographical distributions in the angraecoids and the pantropical orchid genus Bulbophyllum suggest that the same events may have intervened in the dispersal of these two epiphytic groups between Asia, continental Africa, Madagascar and the Neotropics. The major angraecoid lineages probably began to differentiate in the Middle Miocene, and most genera and species emerged respectively around the Late Miocene-Pliocene boundary and the Pleistocene. Ancestral state reconstruction using maximum likelihood estimation revealed an eventful karyotypic history dominated by descending dysploidy. Karyotypic shifts seem to have paralleled cladogenesis in continental tropical Africa, where approximately 90% of the species have descended from at least one inferred transition from n = 17-18 to n = 25 during the Middle Miocene Climatic Transition, followed by some clade-specific descending and ascending dysploidy from the Late Miocene to the Pleistocene. Conversely, detected polyploidy is restricted to a few species lineages mostly originating during the Pleistocene. No increases in net diversification could be related to chromosome number changes, and the apparent net diversification was found to be highest in Madagascar, where karyotypic stasis predominates. Finally, shifts in chromosome number appear to have paralleled the evolution of rostellum structure, leaflessness, and conspicuous changes in floral colour.
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Affiliation(s)
- João N M Farminhão
- Herbarium and Library of African Botany, C.P. 265, Université Libre de Bruxelles, Campus de la Plaine, Boulevard du Triomphe 1050, Brussels, Belgium; Plant Ecology and Biogeochemistry, C.P. 244, Université Libre de Bruxelles, Campus de la Plaine, Boulevard du Triomphe, 1050, Brussels, Belgium.
| | - Simon Verlynde
- Cullman Program for Molecular Systematics, New York Botanical Garden, Bronx, NY 10458-5126, USA; PhD Program in Biology, Graduate Center, City University of New York, 365 5th Ave., New York, NY 10016, USA
| | - Esra Kaymak
- Evolutionary Biology and Ecology, Faculté des Sciences, C.P. 160/12, Université Libre de Bruxelles, 50 Avenue F. Roosevelt, BE-1050 Brussels, Belgium
| | - Vincent Droissart
- Herbarium and Library of African Botany, C.P. 265, Université Libre de Bruxelles, Campus de la Plaine, Boulevard du Triomphe 1050, Brussels, Belgium; AMAP Lab, Univ Montpellier, IRD, CNRS, INRAE, CIRAD, Montpellier, France; Missouri Botanical Garden, Africa and Madagascar Department, 4344 Shaw Blvd., St. Louis, MO 63110, USA; Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P. O. Box 047, Yaoundé, Cameroon
| | - Murielle Simo-Droissart
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, P. O. Box 047, Yaoundé, Cameroon
| | - Géromine Collobert
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP 39, 57 rue Cuvier, 75005 Paris, France
| | - Florent Martos
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP 39, 57 rue Cuvier, 75005 Paris, France
| | - Tariq Stévart
- Herbarium and Library of African Botany, C.P. 265, Université Libre de Bruxelles, Campus de la Plaine, Boulevard du Triomphe 1050, Brussels, Belgium; Missouri Botanical Garden, Africa and Madagascar Department, 4344 Shaw Blvd., St. Louis, MO 63110, USA; Meise Botanic Garden, Domein van Bouchout, Nieuwelaan 38, B-1860 Meise, Belgium
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Doganyigit Z, Yakan B, Soylu M, Kaymak E, Okan A, Silici S. Histological, immunohistochemical and biochemical effects of bee bread on stomach tissue of obese rats. ACTA ACUST UNITED AC 2020; 121:504-511. [PMID: 32990005 DOI: 10.4149/bll_2020_083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Obesity is a major health problem threatening humanity in medical, social and psychological dimensions. In this study, we aimed to determine the histological, immunohistochemical and biochemical effects of bee bread, added to diets of obese rats in different doses, on leptin and ghrelin expression. In the study, 40 female Sprague‒Dawley (200‒250 g) rats were randomly divided into 5 equal groups and then assigned to control and obesity groups. The obesity group consisted of four subgroups: high‑fat diet group, 100 and 200 mg/kg/bw groups, and metformin group. Histopathological evaluation revealed structural deterioration and necrotic areas in the epithelium and glands of the obese rats' stomach tissue, while in their serum and gastric tissues, the MDA level was significantly higher than in the other groups. There was a negative correlation between leptin and ghrelin levels. Apoptotic cells increased with obesity, but the application of beebread was similarly effective as metformin administration in reducing this increase (Tab. 5, Fig. 4, Ref. 51). Keywords: bee bread, leptin, ghrelin, stomach, obesity, rat.
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Öztürk E, Kaymak E, Akin AT, Karabulut D, Ünsal HM, Yakan B. Thymoquinone is a protective agent that reduces the negative effects of doxorubicin in rat testis. Hum Exp Toxicol 2020; 39:1364-1373. [PMID: 32394736 DOI: 10.1177/0960327120924108] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Doxorubicin (DOX) is used for treatment of many cancer types. Thymoquinone (THQ) is a powerful antioxidant agent used for reducing side effects of several drugs. The aim of this study is to determine possible therapeutic effects of THQ on doxorubicin-induced testicular toxicity in rats. METHODS Rats were divided into five groups (n = 8): control, THQ, olive oil, DOX (a single dose of 15 mg/kg intraperitoneally (i.p.) on seventh day of the experiment), and DOX + THQ (10 mg/kg THQ per day and 15 mg/kg DOX i.p. on seventh day). Animals were euthanized, and testis tissues were evaluated histopathologically. Caspase 3 and HSP90 immunostaining were performed to determine the expression levels of these proteins among groups. Terminal deoxynucleotidyl transferase 2'-deoxyuridine, 5'-triphosphate nick-end labeling method was used for evaluation of apoptotic index. Moreover, serum testosterone levels and total antioxidant status (TAS) and total oxidant status (TOS) in testicular tissue were measured by ELISA assay. RESULTS The DOX group had histopathological deterioration compared to the control group. There was an increase in apoptotic index, caspase 3 and HSP90 expressions in the DOX group. While TAS level of the DOX group decreased, TOS level increased when compared with the other groups. Serum testosterone levels in the DOX group decreased compared to the control group. However, there was improvement in testicular tissue in DOX + THQ group compared to the DOX group. There was a decrease in apoptotic index, caspase 3, and HSP90 expressions in DOX + THQ group compared to the DOX group. Testosterone level of DOX + THQ significantly increased compared to the DOX group. CONCLUSION We suggest that THQ can be used as a protective agent to reduce the toxic effects of DOX.
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Affiliation(s)
- E Öztürk
- Department of Histology and Embryology, Faculty of Medicine, Harran University, Sanlıurfa, Turkey
| | - E Kaymak
- Department of Histology and Embryology, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - A T Akin
- Department of Biology, Faculty of Science, Erciyes University, Kayseri, Turkey
| | - D Karabulut
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - H Murat Ünsal
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - B Yakan
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Yildirim AB, Karabulut D, Ozturk E, Kaymak E, Yalcin B, Kuloglu N, Akkus E. Alterations in the immunoreactivity of laminin, type IV collagen and α3β1 integrin in diabetic rat ovarian follicles. BRATISL MED J 2020; 121:340-347. [PMID: 32356431 DOI: 10.4149/bll_2020_054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AIM In order to determine the possible effects of diabetes, we aimed to investigate the expression of extracellular matrix proteins in the theca and granulosa layers in different follicular stages. METHODS Thirty-two adult Wistar albino male rats were divided into 4 groups as control and sampled groups. Four, eight and twelve weeks after inducing diabetes with an intraperitoneal injection of streptozotocin (40 mg/kg), the expressions of laminin, type IV collagen and α3β1 integrin in ovarian tissues were evaluated by immunohistochemical method. RESULTS In our study, in the first month of diabetes, a significant increase was observed in laminin, type IV collagen and α3β1 integrin expressions in all follicle types compared to the control group in both the theca and granulosa layers. Laminin and type IV collagen immunoreactivity tended to increase in D2 and D3 groups also. Integrin expression did not change in the newly formed follicles in the D2 and D3 groups, however, it tended to change and increase in the developing follicles. CONCLUSIONS The changes in the expression of laminin, type IV collagen and α3β1 integrin, which are the extracellular matrix proteins in the follicle, along with diabetes, show that diabetes plays a role in the regulation of follicular development (Tab. 4, Fig. 36, Ref. 29).
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Abstract
The purpose of this study is to histologically and immunohistochemically determine the changes created by grayanotoxin-III (GTX-III), which is a sodium channel neurotoxin, on heart tissues in different dosages. Rats were randomly divided into 10 groups to determine the acute and chronic effects of GTX-III. While the rats in groups 1 and 6 were control rats, the rats in groups 2–5 (1, 2, 4, and 8 μg/kg bw GTX-III) received a single dose of intraperitoneal GTX-III, and the rats in groups 7–10 received GTX-III every day for 3 weeks. As a result of the trial, in the heart tissues, histopathological changes were determined by hematoxylin–eosin staining, interleukin-1 (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and brain natriuretic peptide (BNP) were determined by the avidin–biotin peroxidase method, and apoptosis was examined by immunohistochemistry (IHC) analysis and the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) staining method. In the immunohistochemistry sense, while the BNP level in the AGTX-III groups did not vary significantly, an increase in dosage significantly increased the IL-6, IL-1β, and TNF-α levels in comparison to the control groups. In their comparison to the control groups, the BNP levels increase and the IL-6 and IL-1β levels decreased in the CGTX-III groups. TUNEL analysis revealed that apoptosis increased in both the acute and chronic groups.
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Affiliation(s)
- Z Doǧanyiǧit
- Department of Histology–Embryology, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - E Kaymak
- Department of Histology–Embryology, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - S Silici
- Department of Agricultural Biotechnology, Faculty of Agriculture, Erciyes University, Kayseri, Turkey
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Hardy OJ, Delaide B, Hainaut H, Gillet J, Gillet P, Kaymak E, Vankerckhove N, Duminil J, Doucet J. Seed and pollen dispersal distances in two African legume timber trees and their reproductive potential under selective logging. Mol Ecol 2019; 28:3119-3134. [DOI: 10.1111/mec.15138] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/24/2019] [Accepted: 05/09/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Olivier J. Hardy
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
| | - Boris Delaide
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
| | - Hélène Hainaut
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
| | - Jean‐François Gillet
- TERRA Teaching and Research Centre Forest is Life Gembloux Agro‐Bio Tech Université de Liège Gembloux Belgium
- Nature Forest Environment Freelance in Tropical Forestry Porcheresse Belgium
| | - Pauline Gillet
- TERRA Teaching and Research Centre Forest is Life Gembloux Agro‐Bio Tech Université de Liège Gembloux Belgium
| | - Esra Kaymak
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
| | - Nina Vankerckhove
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
| | - Jérôme Duminil
- Evolutionary Biology and Ecology Unit CP 160/12 Faculté des Sciences Université Libre de Bruxelles Brussels Belgium
- DIADE, IRD Univ Montpellier Montpellier France
- Bioversity International Forest Genetic Resources and Restoration Programme Sub‐Regional Office for Central Africa Messa, Yaoundé Cameroon
| | - Jean‐Louis Doucet
- TERRA Teaching and Research Centre Forest is Life Gembloux Agro‐Bio Tech Université de Liège Gembloux Belgium
- Nature+ asbl Wavre Belgium
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Piñeiro R, Dauby G, Kaymak E, Hardy OJ. Pleistocene population expansions of shade-tolerant trees indicate fragmentation of the African rainforest during the Ice Ages. Proc Biol Sci 2018; 284:rspb.2017.1800. [PMID: 29093226 DOI: 10.1098/rspb.2017.1800] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/02/2017] [Indexed: 11/12/2022] Open
Abstract
The fossil record in tropical Africa suggests that dry conditions during the Ice Ages caused expansion of savannahs and contraction of the rainforest. Forest refugia have been proposed to be located in areas of Central Africa that currently harbour high rates of endemic species. However, to what extent the forest was fragmented remains unknown. Nuclear microsatellites and plastid sequences of 732 trees of two species occurring in the same habitat-mature lowland evergreen rainforests-but with remarkably different dispersal capacities-animal versus gravity-were analysed. Geographical information system tools revealed intraspecific lineages partially congruent across the two species, suggesting common past barriers to gene flow in Central Africa. According to approximate Bayesian computation, the intraspecific genetic clusters diverged during the Pleistocene (less than 2 Ma), so that intraspecific differentiation is the appropriate scale to test the aridification effect of the Ice Ages on tree populations. Demographic tests revealed clear genetic signals of population expansion in both taxa, possibly following bottleneck events after forest fragmentation, with stronger evidence of expansion after the Penultimate rather than after the Last Glacial Maximum. The differential dispersal capacity may have modulated the particular response of each species to climate change, as revealed by the stronger evidence of expansion found in the animal-dispersed species than in the gravity-dispersed one.
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Affiliation(s)
- Rosalía Piñeiro
- Université Libre de Bruxelles, Faculté des Sciences, Evolutionary Biology and Ecology, CP160/12, 50 Av. F. Roosevelt, 1050 Brussels, Belgium .,Evolutionary Genomics, Centre for Geogenetics-Natural History Museum of Denmark, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
| | - Gilles Dauby
- Université Libre de Bruxelles, Faculté des Sciences, Evolutionary Biology and Ecology, CP160/12, 50 Av. F. Roosevelt, 1050 Brussels, Belgium
| | - Esra Kaymak
- Université Libre de Bruxelles, Faculté des Sciences, Evolutionary Biology and Ecology, CP160/12, 50 Av. F. Roosevelt, 1050 Brussels, Belgium
| | - Olivier J Hardy
- Université Libre de Bruxelles, Faculté des Sciences, Evolutionary Biology and Ecology, CP160/12, 50 Av. F. Roosevelt, 1050 Brussels, Belgium
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Tosso F, Hardy OJ, Doucet JL, Daïnou K, Kaymak E, Migliore J. Evolution in the Amphi-Atlantic tropical genus Guibourtia (Fabaceae, Detarioideae), combining NGS phylogeny and morphology. Mol Phylogenet Evol 2017; 120:83-93. [PMID: 29222064 DOI: 10.1016/j.ympev.2017.11.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 11/22/2017] [Accepted: 11/30/2017] [Indexed: 11/16/2022]
Abstract
Tropical rain forests support a remarkable diversity of tree species, questioning how and when this diversity arose. The genus Guibourtia (Fabaceae, Detarioideae), characterized by two South American and 13 African tree species growing in various tropical biomes, is an interesting model to address the role of biogeographic processes and adaptation to contrasted environments on species diversification. Combining whole plastid genome sequencing and morphological characters analysis, we studied the timing of speciation and diversification processes in Guibourtia through molecular dating and ancestral habitats reconstruction. All species except G. demeusei and G. copallifera appear monophyletic. Dispersal from Africa to America across the Atlantic Ocean is the most plausible hypothesis to explain the occurrence of Neotropical Guibourtia species, which diverged ca. 11.8 Ma from their closest African relatives. The diversification of the three main clades of African Guibourtia is concomitant to Miocene global climate changes, highlighting pre-Quaternary speciation events. These clades differ by their reproductive characters, which validates the three subgenera previously described: Pseudocopaiva, Guibourtia and Gorskia. Within most monophyletic species, plastid lineages start diverging from each other during the Pliocene or early Pleistocene, suggesting that these species already arose during this period. The multiple transitions between rain forests and dry forests/savannahs inferred here through the plastid phylogeny in each Guibourtia subgenus address thus new questions about the role of phylogenetic relationships in shaping ecological niche and morphological similarity among taxa.
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Affiliation(s)
- Félicien Tosso
- TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium; Evolutionary Biology and Ecology Unit CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, 50 avenue F. Roosevelt, B-1050 Brussels, Belgium.
| | - Olivier J Hardy
- Evolutionary Biology and Ecology Unit CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, 50 avenue F. Roosevelt, B-1050 Brussels, Belgium.
| | - Jean-Louis Doucet
- TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium.
| | - Kasso Daïnou
- Nature + asbl / TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés 2, 5030 Gembloux, Belgium; BIOSE Department, Management of Forest Resources, Gembloux Agro-Bio Tech, Université de Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium; Université Nationale d'Agriculture, BP 43 Kétou, Benin.
| | - Esra Kaymak
- Evolutionary Biology and Ecology Unit CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, 50 avenue F. Roosevelt, B-1050 Brussels, Belgium.
| | - Jérémy Migliore
- Evolutionary Biology and Ecology Unit CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, 50 avenue F. Roosevelt, B-1050 Brussels, Belgium.
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Tosso F, Doucet JL, Migliore J, Daïnou K, Kaymak E, Kameni FSM, Hardy OJ. Characterization of microsatellite markers in the African tropical tree species Guibourtia ehie (Fabaceae, Detarioideae). Appl Plant Sci 2017; 5:apps1700023. [PMID: 28791206 PMCID: PMC5546166 DOI: 10.3732/apps.1700023] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
PREMISE OF THE STUDY Microsatellite primers (simple sequence repeats [SSRs]) were developed in Guibourtia ehie (Fabaceae, Detarioideae) to study population genetic structure and the history of African vegetation. METHODS AND RESULTS We isolated 18 polymorphic SSRs from a nonenriched genomic library. This set of primer pairs was tested on four populations, and the results showed two to 16 alleles per locus with mean observed and expected heterozygosities of 0.27 ± 0.05 and 0.57 ± 0.05, respectively. Cross-amplification tests in 13 congeneric species were successful for the four taxa belonging to the subgenus Gorskia. CONCLUSIONS This set of microsatellite markers will be useful to investigate the phylogeography and population genetics of G. ehie, a key representative of African semideciduous moist forests.
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Affiliation(s)
- Félicien Tosso
- Central African Forests, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Université de Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Jean-Louis Doucet
- Central African Forests, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Université de Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium
| | - Jérémy Migliore
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Kasso Daïnou
- Central African Forests, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Université de Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium
- Nature+ asbl, Rue Provinciale 62, 1301 Wavre, Belgium
- Management of Forest Resources, BIOSE Department, Gembloux Agro-Bio Tech, Université de Liège, B-5030 Gembloux, Belgium
- Université d’Agriculture de Kétou, BP 43 Kétou, Benin
| | - Esra Kaymak
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Franck S. Monthe Kameni
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Olivier J. Hardy
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
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Sönmez MF, Ozdemir Ş, Guzel M, Kaymak E. The ameliorative effects of vinpocetine on apoptosis and HSP-70 expression in testicular torsion in rats. Biotech Histochem 2017; 92:92-99. [DOI: 10.1080/10520295.2016.1259499] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- MF Sönmez
- Departments of Histology and Embryology
| | - Ş Ozdemir
- Departments of Histology and Embryology
| | - M Guzel
- Pediatric Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - E Kaymak
- Departments of Histology and Embryology
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Yildirim AB, Ozdamar S, Kaymak E. THE EFFECTS OF MATERNAL HYPOTHYROIDISM ON THE IMMUNOREACTIVITY OF CYTOCHROME P450 AROMATASE IN THE POSTNATAL RAT TESTICLES. Acta Endocrinol (Buchar) 2017; 13:7-16. [PMID: 31149142 DOI: 10.4183/aeb.2017.7] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction Abnormal thyroid function affect spermato-genesis and male infertility. For men, the aromatase deficiency can cause infertility. In this study, the aim is to investigate the effect of maternal hypothyroidism on offspring testicular morphology and cytochrome-P450-aromatase (P450arom) immunoreactivity. Materials and Methods Eighteen Wistar albino pregnant rats were divided into three groups, namely A, B and K groups. Hypothyroidism was induced by adding 0.01% of propyl thiouracil (PTU) in drinking water. Hypothyroid mothers, group A: given PTU for 21 days during pregnancy, group B: given PTU for 21 days prior to pregnancy; control mothers, group K, given only water. Hypothyroid and control group mothers' pups at postnatal day (PND) 15 and 60 were sacrificed. We determined immunoreactivity intensity of P450arom and mRNA levels by RT-PCR performed in the testis tissues. ELISA method was used for thyroid function tests for T3, T4 and TSH. Structure of seminiferous tubule was evaluated by hematoxylin-eosin staining. Results It was seen that the aromatase expression in 15-day-old maternal hypothyroid groups was similar to the one in the control group while there was a decline in the aromatase expression of 60-day-old groups. As for mRNA, it was determined that it had a tendency to increase over time in all groups but this increase was not significant. The tubule diameter and Johnsen's Testicular Biopsy Score diminished in all hypothyroid groups in comparison to the control group. Conclusion The changes that occur in the early period of testis development due to maternal hypothyroidism negatively affect testis development in the next stages of life. This situation leads to a decline in aromatase expression in the following years.
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Affiliation(s)
- A B Yildirim
- University of Kahramanmaras Sutcu Imam, Dept. of Histology Embriyology, Kahramanmaraş, Kayseri, Turkey
| | - S Ozdamar
- University of Erciyes, Dept. of Histology Embryology, Kayseri, Turkey
| | - E Kaymak
- University of Erciyes, Dept. of Histology Embryology, Kayseri, Turkey
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Daïnou K, Blanc-Jolivet C, Degen B, Kimani P, Ndiade-Bourobou D, Donkpegan ASL, Tosso F, Kaymak E, Bourland N, Doucet JL, Hardy OJ. Revealing hidden species diversity in closely related species using nuclear SNPs, SSRs and DNA sequences - a case study in the tree genus Milicia. BMC Evol Biol 2016; 16:259. [PMID: 27903256 PMCID: PMC5131513 DOI: 10.1186/s12862-016-0831-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 02/11/2016] [Accepted: 11/17/2016] [Indexed: 12/22/2022] Open
Abstract
Background Species delimitation in closely related plant taxa can be challenging because (i) reproductive barriers are not always congruent with morphological differentiation, (ii) use of plastid sequences might lead to misinterpretation, (iii) rare species might not be sampled. We revisited molecular-based species delimitation in the African genus Milicia, currently divided into M. regia (West Africa) and M. excelsa (from West to East Africa). We used 435 samples collected in West, Central and East Africa. We genotyped SNP and SSR loci to identify genetic clusters, and sequenced two plastid regions (psbA-trnH, trnC-ycf6) and a nuclear gene (At103) to confirm species’ divergence and compare species delimitation methods. We also examined whether ecological niche differentiation was congruent with sampled genetic structure. Results West African M. regia, West African and East African M. excelsa samples constituted three well distinct genetic clusters according to SNPs and SSRs. In Central Africa, two genetic clusters were consistently inferred by both types of markers, while a few scattered samples, sympatric with the preceding clusters but exhibiting leaf traits of M. regia, were grouped with the West African M. regia cluster based on SNPs or formed a distinct cluster based on SSRs. SSR results were confirmed by sequence data from the nuclear region At103 which revealed three distinct ‘Fields For Recombination’ corresponding to (i) West African M. regia, (ii) Central African samples with leaf traits of M. regia, and (iii) all M. excelsa samples. None of the plastid sequences provide indication of distinct clades of the three species-like units. Niche modelling techniques yielded a significant correlation between niche overlap and genetic distance. Conclusions Our genetic data suggest that three species of Milicia could be recognized. It is surprising that the occurrence of two species in Central Africa was not reported for this well-known timber tree. Globally, our work highlights the importance of collecting samples in a systematic way and the need for combining different nuclear markers when dealing with species complexes. Recognizing cryptic species is particularly crucial for economically exploited species because some hidden taxa might actually be endangered as they are merged with more abundant species. Electronic supplementary material The online version of this article (doi:10.1186/s12862-016-0831-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kasso Daïnou
- Nature + asbl / TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés 2, 5030, Gembloux, Belgium. .,Université d'Agriculture de Kétou, BP 43, Kétou, Benin.
| | - Céline Blanc-Jolivet
- Thünen Institute of Forest Genetics, Sieker Landstrasse 2, 22927, Grosshansdorf, Germany
| | - Bernd Degen
- Thünen Institute of Forest Genetics, Sieker Landstrasse 2, 22927, Grosshansdorf, Germany
| | - Priscilla Kimani
- Kenya Forestry Research Institute, Biotechnology Section, P. O. Box 20412-00200, Nairobi, Kenya
| | | | - Armel S L Donkpegan
- TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Félicien Tosso
- TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Esra Kaymak
- Evolutionary Biology and Ecology - CP 160⁄12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. Roosevelt 50, 1050, Brussels, Belgium
| | - Nils Bourland
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Jean-Louis Doucet
- TERRA Research Centre, Central African Forests, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Olivier J Hardy
- Evolutionary Biology and Ecology - CP 160⁄12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. Roosevelt 50, 1050, Brussels, Belgium
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Tosso F, Doucet JL, Kaymak E, Daïnou K, Duminil J, Hardy OJ. Microsatellite development for the genus Guibourtia (Fabaceae, Caesalpinioideae) reveals diploid and polyploid species. Appl Plant Sci 2016; 4:apps1600029. [PMID: 27437170 PMCID: PMC4948898 DOI: 10.3732/apps.1600029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 04/11/2016] [Indexed: 06/06/2023]
Abstract
PREMISE OF THE STUDY Nuclear microsatellites (nSSRs) were designed for Guibourtia tessmannii (Fabaceae, Caesalpinioideae), a highly exploited African timber tree, to study population genetic structure and gene flow. METHODS AND RESULTS We developed 16 polymorphic nSSRs from a genomic library tested in three populations of G. tessmannii and two populations of G. coleosperma. These nSSRs display three to 14 alleles per locus (mean 8.94) in G. tessmannii. Cross-amplification tests in nine congeneric species demonstrated that the genus Guibourtia contains diploid and polyploid species. Flow cytometry results combined with nSSR profiles suggest that G. tessmannii is octoploid. CONCLUSIONS nSSRs revealed that African Guibourtia species include both diploid and polyploid species. These markers will provide information on the mating system, patterns of gene flow, and genetic structure of African Guibourtia species.
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Affiliation(s)
- Felicien Tosso
- Tropical Forestry, Management of Forest Resources, TERRA, Gembloux Agro-Bio Tech, University of Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
| | - Jean-Louis Doucet
- Tropical Forestry, Management of Forest Resources, TERRA, Gembloux Agro-Bio Tech, University of Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
| | - Esra Kaymak
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Kasso Daïnou
- Tropical Forestry, Management of Forest Resources, TERRA, Gembloux Agro-Bio Tech, University of Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
- Nature+ asbl, Rue Provinciale 62, 1301 Wavre, Belgium
| | - Jérôme Duminil
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
- Bioversity International, Forest Genetic Resources Programme, Sub-Regional Office for Central Africa, P.O. Box 2008, Messa, Yaoundé, Cameroon
- Institut de Recherche pour le Développement, UMR-DIADE, BP 64501, 34394 Montpellier, France
| | - Olivier J. Hardy
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
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Demenou BB, Migliore J, Tosso F, Kaymak E, Hardy OJ. Development and characterization of microsatellite markers in the African deciduous tree Terminalia superba (Combretaceae). Appl Plant Sci 2015; 3:apps1500070. [PMID: 26697276 PMCID: PMC4683041 DOI: 10.3732/apps.1500070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/04/2015] [Indexed: 05/29/2023]
Abstract
PREMISE OF THE STUDY Microsatellites were designed and characterized in the African timber forest tree Terminalia superba (Combretaceae). Due to their high variability, these markers are suitable to investigate gene flow patterns and the structure of genetic diversity. METHODS AND RESULTS From a genomic library obtained by next-generation sequencing, seven monomorphic and 14 polymorphic microsatellite loci were developed. The polymorphic microsatellites displayed two to 27 alleles (mean 11.4; expected heterozygosity range 0.283-0.940, mean 0.736) in one population from southeastern Cameroon. Genotypes were typical of an outbreeding diploid species, although null alleles explain a significant heterozygote deficit in three loci. Cross-amplification in three congeneric species (T. ivorensis, T. avicennioides, and T. mantaly) failed, suggesting that T. superba is rather divergent. CONCLUSIONS This set of newly developed microsatellite markers will be useful for assessing the genetic diversity, population structure, and demographic history of T. superba in tropical African forests.
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Affiliation(s)
- Boris B. Demenou
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Jérémy Migliore
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Felicien Tosso
- Management of Forest Resources, Biosystem Engineering Department, Gembloux Agro-Bio Tech, Université de Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
| | - Esra Kaymak
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
| | - Olivier J. Hardy
- Evolutionary Biology and Ecology Unit, CP 160/12, Faculté des Sciences, Université Libre de Bruxelles, Av. F. D. Roosevelt 50, B-1050 Brussels, Belgium
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Nazli O, Bozdag AD, Tansug T, Kir R, Kaymak E. The diagnostic importance of CEA and CA 19-9 for the early diagnosis of pancreatic carcinoma. Hepatogastroenterology 2000; 47:1750-2. [PMID: 11149048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
BACKGROUND/AIMS CA 19-9 and CEA were evaluated for their specificity and sensitivity in the early diagnosis of pancreatic carcinoma. METHODOLOGY This prospective study included 40 patients with pancreatic carcinoma. A control group of 60 patients were divided into two subgroups as upper gastrointestinal system malignancies and benign pancreatic disorders. CEA and CA 19-9 levels were measured in all the patients. RESULTS When the reference value of CA 19-9 was accepted as 74 U/mL, the specificity was 100% when pancreatic carcinoma was compared with benign disorders of the pancreas, but it's specificity for upper gastrointestinal malignancies was 60-90%. When the reference value of CEA was increased, the sensitivity had been decreased but the specificity had been increased when compared with the control group. If the reference value of CEA was accepted as 5 ng/mL, the specificity was 100% when pancreatic carcinoma was compared with acute or chronic pancreatitis, but it is less specific for the differential diagnosis of pancreatic carcinoma from the upper gastrointestinal malignancies. CONCLUSIONS With the progression of the pancreatic carcinoma, serum CEA level and the specificity of CEA were elevated similar to that of CA 19-9. However, the elevation of CEA specificity when compared with the control group was lower than the specificity of the CA 19-9 and the sensitivity of CA 19-9 was superior to that of CEA for pancreatic carcinoma. The level of CA 19-9 was increased with the development of early pancreatic cancer and this elevation steadily continued with the progression of the cancer.
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Affiliation(s)
- O Nazli
- Atatürk Training Hospital 3. Surgical Clinic Izmir, Turkey.
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17
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Affiliation(s)
- A D Bozdağ
- 3rd Surgical Clinic and Radiology Clinic of Atatürk Training Hospital, Izmir, Turkey
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Nazli O, Tansug T, Bozdag AD, Cln N, Kaymak E. Locoregional chemotherapy in pancreatic cancer. Hepatogastroenterology 1999; 46:479-82. [PMID: 10228847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
BACKGROUND/AIMS Investigating whether or not locoregional chemotherapy has an effect on survival among patients with pancreatic cancer. The possibility of radical surgical interventions for treatment of cancer of the pancreas is very low. Locoregional chemotherapy is one of the modalities advocated to increase survival of such patients. METHODOLOGY Twenty-nine patients with cancer of the pancreas underwent surgery in our clinic. Eleven patients were female and 18 were male. Surgical procedures and adjuvant locoregional chemotherapy applied to these patients as well as survival obtained are evaluated and compared to those reported in the literature. RESULTS Eight of the 9 patients that received curative surgery and adjuvant locoregional chemotherapy are still alive after 5, 6, 7, 7, 9, 12, 13, and 17 months. Seventeen patients with advanced stage pancreatic cancer had palliative diversion procedures. Mean survival was 10.5 months for the seven that received locoregional chemotherapy, but 6.2 months for the 10 patients that did not receive locoregional chemotherapy. Mean survival of 3 patients that had only laparotomy was 2.3 months. CONCLUSIONS Neoadjuvant or adjuvant locoregional chemotherapy has a beneficial effect on the survival of patients that undergo curative or palliative surgery for pancreatic cancer. However further multicenter trials are necessary.
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Affiliation(s)
- O Nazli
- Third Surgical Clinic of Ataturk Training Hospital, Izmir, Turkey
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Abstract
PURPOSE After excision of the pilonidal sinus, some surgeons leave the wound open, and others close the wound primarily. The aim of this study is to compare length of hospital stay, length of time to return to work, wound infection rate, and recurrence rate in chronic pilonidal sinus patients, after modification of both closed and open techniques. METHODS One hundred ten patients who had chronic-stage pilonidal sinus were randomly assigned to receive one of two excisional surgical procedures. One-half were treated by surgical excision and primary closure (closed technique, Group A). The other one-half were treated with Obeid's surgical excision (open technique, Group B). RESULTS Ninety-one (46 in Group A and 45 in Group B) of 110 patients were followed for a period four months to three years. Although patients with primary closure had significantly longer hospital stays (P < 0.05) than patients in the open group, they returned to work significantly earlier (P < 0.05). In Group A and Group B, infection rates were 3.6 percent and 1.8 percent (P > 0.01), and recurrence rates were 4.4 percent and 0 percent (P > 0.01), respectively. CONCLUSION Because both techniques have very low complication rates, treatment of chronic pilonidal sinus should be based on patient preference and characteristics, especially employment status.
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Affiliation(s)
- M Füzün
- Izmir State Hospital, Turkey
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Abstract
A retrospective study of the principal causes of mechanical bowel obstruction occurring in Western Turkey between 1979 and 1989 was undertaken. The records of 14,777 operations performed in the general surgery departments of two hospitals were reviewed. Mechanical bowel obstruction occurred in 582 patients. Among the causes of mechanical bowel obstruction, adhesions were most common (44.0 per cent), followed by strangulated hernia (23.9 per cent), volvuli (12.7 per cent) and colonic carcinomas (10.1 per cent). A previous appendicectomy appeared to be the most important cause of adhesions causing mechanical bowel obstruction.
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Affiliation(s)
- M Füzün
- Department of Surgery, Dokuz Eylül University, Izmir, Turkey
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