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Nilofar N, Zengin G, Acar M, Bouyayha A, Youssra A, Eldahshan O, Fayez S, Fahmy N. Assessing the Chemical Composition, Antioxidant and enzyme Inhibitory Effects of Pentapleura subulifera and Cyclotrichium glabrescens Extracts. Chem Biodivers 2024; 21:e202301651. [PMID: 38016080 DOI: 10.1002/cbdv.202301651] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 11/30/2023]
Abstract
The Lamiaceae family, encompassing diverse plant species, holds significant value in food, medicine, and cosmetics. Within this family, Pentapleura subulifera and Cyclotrichium glabrescens, relatively unexplored species, were investigated for their chemical composition, antioxidant capacity, and enzyme-inhibiting effects. The chemical composition of hexane, methanolic, and aqueous extracts from P. subulifera and C. glabrescens were analyzed using LC-ESI-MS/MS and the non-polar hexane fraction was investigated via GC-MS. The antioxidant potential of the extracts was determined through radical scavenging, reducing power and metal chelating assays. Additionally, inhibitory activity against six enzymes - acetylcholinesterase (AChE), butyrylcholinesterase (BChE), tyrosinase, amylase, and glucosidase - was examined. The aqueous extract of P. subulifera and the methanolic extract of C. glabrescens exhibited elevated phenolic content at 129.47 mg gallic acid equivalent (GAE)/g and 55.97 mg GAE/g, respectively. Chemical profiling of the constituents of the two plant species resulted in the identification of a total of twenty compounds. The majority of which belonged to flavonoids and quinic acid derivatives, primarily concentrated in the methanol and aqueous extracts. Among all antioxidant assays, the aqueous extracts of P. subulifera demonstrated superior antioxidant activity, with the highest recorded activity of 404.93 mg trolox equivalent (TE)/g in the cupric reducing antioxidant capacity (CUPRAC) test. Meanwhile, the hexane extract of C. glabrescens exhibited the highest AChE inhibitory activity at 2.71 mg galanthamine equivalent (GALAE)/g, followed by the methanol extract of P. subulifera at 2.41 mg GALAE/g. These findings unequivocally establish the notable antioxidant and enzyme inhibitory activity of P. subulifera and C. glabrescens extracts, underscoring their potential as a source of valuable natural antioxidants.
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Affiliation(s)
- Nilofar Nilofar
- Physiology and Biochemistry Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
- Department of Pharmacy, Botanic Garden "Giardino dei Semplici", Università degli Studi "Gabriele d'Annunzio", via dei Vestini 31, 66100, Chieti, Italy
| | - Gokhan Zengin
- Physiology and Biochemistry Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | - Mikail Acar
- Munzur University, Department of Plant and Animal Production, Tunceli Vocational School of Higher Education, Tunceli, 62000, Turkey
| | - Abdelhakim Bouyayha
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, 10106, Morocco
| | - Aalilou Youssra
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, 10106, Morocco
| | - Omayma Eldahshan
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
- Center of Drug Discovery Research and Development, Ain Shams University, Abbassia, Cairo, 11566, Egypt
| | - Shaimaa Fayez
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Nouran Fahmy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Abbassia, 11566, Cairo, Egypt
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Yilmaz Kardas B, Diken ME, Bayhan H, Acar M, Dogan S. Cytoprotective, antimutagenic/antirecombinogenic and antibacterial properties of Lallemantia iberica extracts. J Sci Food Agric 2023; 103:1901-1911. [PMID: 36207573 DOI: 10.1002/jsfa.12257] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 09/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Plants have important chemical compounds to protect organisms from many mutagens but they may also have dangerous toxic substances that must be tested before use. Lallemantia iberica has been used by local people for treatment of some diseases but it was never tested for its cell protective and antimutagenic/antirecombinogenic properties. In this study, it was aimed to determine the cytoprotective, antimutagenic/antirecombinogenic, antibacterial, antioxidant and phenolic profile of L. iberica by MTS assay, micronucleus test/somatic mutation recombination test (SMART), disc diffusion method, ABTS/DPPH tests and liquid chromatography (LC), respectively. RESULTS MTS assay results showed that both of the extracts supported the normal growth of healthy human lymphocytes and there was no significant difference between extracts. Although there was no significant increase in micronucleus concentration (‰) of the cultures treated with ethanol or methanol extracts, methanol extract caused slightly lower micronucleus concentration (12.64 ± 3.65‰) than the ethanol extract (24.46 ± 4.50‰). SMART results showed that ethanol and methanol extracts prevented harmful mitotic recombination. Lallemantia iberica also showed antibacterial activity against all of the strains tested, and the largest inhibition zones were observed with Pseudomonas aeruginosa (17.9 mm) and Enterobacter aerogenes (13.8 mm). Methanol extracts showed better antioxidant activities (ABTS IC50 : 104.07 μg mL-1 , DPPH IC50 : 58.8 μg mL-1 ) than ethanol extracts (ABTS IC50 : 344.03 μg mL-1 , DPPH IC50 : 233.7 μg mL-1 ). According to the LC results, the most abundant phenolic compounds were rutin hydrate (1796.4 ± 62.9 mg kg-1 ) and p-coumaric acid (228.1 ± 7.60 mg kg-1 ). CONCLUSION Lallemantia iberica extracts had cell-protective, antimutagenic/antirecombinogenic, antibacterial and strong antioxidant characteristics in relation to their rich phenolic content. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Begumhan Yilmaz Kardas
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, Balikesir, Turkey
| | - Mehmet Emin Diken
- Science and Technology Application and Research Center, Balikesir University, Balikesir, Turkey
| | - Hamza Bayhan
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, Balikesir, Turkey
| | - Mikail Acar
- Department of Plant and Animal Production, Munzur University, Tunceli, Turkey
| | - Serap Dogan
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, Balikesir, Turkey
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Meyer E, Kruglov D, Krivic M, Tanveer M, Argaez-Ramirez R, Zhang Y, Briseno Ojeda A, Smirnova K, Alekseev K, Safari Mugisho M, Cimbili B, Farid N, Dang Y, Shahid M, Ensan M, Banar J, Bao H, Matters-Kammerer M, Gustavsson U, Demuynck F, Zwick T, Acar M, Fager C, van der Heijden M, Ivashina M, Caratelli D, Hasselblad M, Ulusoy C, Smolders A, Eriksson K, Johannson M, Maaskant R, Quay R, Floriot D, Bao M, Bronckers L, Fridén J, van Beurden M, de Hon B, Kolitsidas C, Blanco D, Willems F, Eriksson T, Filippi A, Ponzini F, Johannsen U. The state of the art in beyond 5G distributed massive multiple-input multiple-output communication system solutions. Open Res Eur 2022; 2:106. [PMID: 37982077 PMCID: PMC10654493 DOI: 10.12688/openreseurope.14501.1] [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] [Figures] [Subscribe] [Scholar Register] [Accepted: 07/25/2022] [Indexed: 11/21/2023]
Abstract
Beyond fifth generation (5G) communication systems aim towards data rates in the tera bits per second range, with improved and flexible coverage options, introducing many new technological challenges in the fields of network architecture, signal pro- cessing, and radio frequency front-ends. One option is to move towards cell-free, or distributed massive Multiple-Input Multiple-Output (MIMO) network architectures and highly integrated front-end solutions. This paper presents an outlook on be- yond 5G distributed massive MIMO communication systems, the signal processing, characterisation and simulation challenges, and an overview of the state of the art in millimetre wave antennas and electronics.
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Affiliation(s)
- E. Meyer
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - D. Kruglov
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - M. Krivic
- Keysight Technologies, Kortrijksesteenweg 1093B, 9051 Gent, Belgium
| | - M. Tanveer
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - R. Argaez-Ramirez
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - Y. Zhang
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | | | - K. Smirnova
- Karlsruhe Institute of Technology, 6131 Karlsruhe, Germany
| | - K. Alekseev
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - M. Safari Mugisho
- Fraunhofer Institute for Applied Solid State Physics, IAF, Tullastraße 72, 79108 Freiburg, Germany
| | - B. Cimbili
- Fraunhofer Institute for Applied Solid State Physics, IAF, Tullastraße 72, 79108 Freiburg, Germany
| | - N. Farid
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - Y. Dang
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - M. Shahid
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - M. Ensan
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - J. Banar
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - H. Bao
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - M. Matters-Kammerer
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - U. Gustavsson
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - F. Demuynck
- Keysight Technologies, Kortrijksesteenweg 1093B, 9051 Gent, Belgium
| | - T. Zwick
- Karlsruhe Institute of Technology, 6131 Karlsruhe, Germany
| | - M. Acar
- NXP Semiconductors, High Tech Campus 60, 5656 AG Eindhoven, The Netherlands
| | - C. Fager
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - M. van der Heijden
- NXP Semiconductors, High Tech Campus 60, 5656 AG Eindhoven, The Netherlands
| | - M. Ivashina
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - D. Caratelli
- The Antenna Company, High Tech Campus 29, 5656 AE Eindhoven, The Netherlands
| | - M. Hasselblad
- Gapwaves, Nellickevagen 22, 412 63 Gothenburg, Sweden
| | - C. Ulusoy
- Karlsruhe Institute of Technology, 6131 Karlsruhe, Germany
| | - A.B. Smolders
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - K. Eriksson
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - M. Johannson
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - R. Maaskant
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - R. Quay
- Fraunhofer Institute for Applied Solid State Physics, IAF, Tullastraße 72, 79108 Freiburg, Germany
| | - D. Floriot
- United Monolithic Semiconductors SAS, Bâtiment Charmille, Mosaic parc de Courtaboeuf, 10 avenue du Québec, 91140, Villebon-sur-Yvette, France
| | - M. Bao
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - L.A. Bronckers
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - J. Fridén
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - M.C. van Beurden
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - B.P. de Hon
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - C. Kolitsidas
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - D. Blanco
- Ericsson AB, Lindholmspiren 11, 417 56 Göteborg, Sweden
| | - F.M.J. Willems
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - T. Eriksson
- Chalmers University of Technology, Chalmersplatsen 4, 412 96 Göteborg, Sweden
| | - A. Filippi
- NXP Semiconductors, High Tech Campus 60, 5656 AG Eindhoven, The Netherlands
| | - F. Ponzini
- Ericsson Telecomunicazioni SpA, Via Anagnina 203, 00118 Rome, Italy
| | - U. Johannsen
- Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
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Yegit CY, Ergenekon P, Yanaz M, Guliyeva A, Kalyoncu M, Meral O, Selcuk M, Taştan G, Uzunoglu B, Ozturk N, Toktas F, Atas A, Kara H, Oruc Y, Acar M, Collak A, Bal N, Gedik O, Dogan R, Tan EG, Kafi HM, Karasu N, Ayhan Y, Yumusakhuylu A, Sakallı AK, Cakır E, Girit S, Gokdemir Y, Eralp EE, Ata P, Ciprut A, Karakoc F, Karadag B. P149 The association between the cumulative dose of aminoglycoside exposure and hearing loss in children with cystic fibrosis. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00480-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Affiliation(s)
- S Çalışkan
- Diskapi Yildirim Beyazit training and Research Hospital, Ankara, Turkey
| | - M Acar
- Diskapi Yildirim Beyazit training and Research Hospital, Ankara, Turkey
| | - C Gürdal
- Diskapi Yildirim Beyazit training and Research Hospital, Ankara, Turkey
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Yucel A, Yaman M, Acar M, Haktanir A, Albayrak R, Degirmenci B. Sonographic Findings of Median Nerve and Prevalence of Carpal Tunnel Syndrome in Computer Mouse Users. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/197140090501800213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to evaluate the median nerve sonographically and estimate the prevalence of carpal tunnel syndrome (CTS) in computer mouse users. Forty-nine right wrists of 49 employees who had used a computer mouse were included in the study. Thirty-three right wrists of 33 non-mouse user employees were studied as a control group. Both the mouse user and non-mouse user employees underwent sonography and electromyography (EMG). Axial sonograms of the median nerve were obtained proximally, in the middle and distally in the carpal tunnel. At each level, flattening ratio and the cross-sectional area of the median nerve were calculated. We found no significant difference in any parameters between mouse users and control group ( p>0.05). However, when we compared mouse users according to the presence of pain, there was a significant increase in the cross-sectional area of the median nerve proximally in the mouse users having pain ( p<0.05). Of all mouse users, eight (16.3%) were diagnosed as sensory CTS, four (8.2%) as motor CTS by EMG. We also found that four (50%) CTS patients had a proximal cross-sectional area of median nerve exceeding 10 mm2 and five (62.5%) had a distal flattening ratio over three. Prolonged use of a mouse may pose an occupational risk for employees. Sonography can serve as an initial step in symptomatic patients for diagnosis of CTS.
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Affiliation(s)
- A. Yucel
- Department of Radiology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
| | - M. Yaman
- Department of Neurology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
| | - M. Acar
- Department of Radiology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
| | - A. Haktanir
- Department of Radiology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
| | - R. Albayrak
- Department of Radiology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
| | - B. Degirmenci
- Department of Radiology, Afyon Kocatepe University School of Medicine; Afyon, Turkey
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Hanci D, Ulusoy S, Acar M, Burukoglu D, Kutlu HM, Bayar Muluk N, Cingi C. Potential protective effect of resveratrol on acoustic trauma: electron microscopy study. Eur Rev Med Pharmacol Sci 2016; 20:3469-3475. [PMID: 27608909] [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: 06/06/2023]
Abstract
OBJECTIVE To investigate the potential preventive effect of resveratrol in rats exposed to acoustic trauma (AT). MATERIALS AND METHODS In this experimental study, Wistar albino rats were divided into three groups: Group 1 (Control, n = 6), Group 2 (AT, n = 6), and Group 3 (resveratrol + AT). The rats in Group 2 were exposed to AT. The rats in Group 3 received resveratrol (300 mg/kg/day) via gavage for 7 days. On day 7, the rats were exposed to AT 10 min following resveratrol treatment. Histological sections of the cochleae were examined using light microscopy, transmission (TEM), and scanning electron microscopy (SEM). RESULTS The cochlear hair cells, stereocilia, and Deiters' cells of the control group appeared normal in all microscopic evaluations. In Group 2, light microscopy revealed predominantly inner hair cell loss, although the outer hair cells were affected. TEM and SEM examination showed severe loss of stereocilia and SEM revealed stereocilia arranged in an asymmetric array. The cochlear structure in Group 3 appeared well preserved under the light microscope, and although TEM and SEM revealed stereocilia loss, the hair cells and stereocilia appeared near normal compared with those of Group 2. CONCLUSIONS Resveratrol may have a protective effect against AT damage in the cochlea, most likely through its antioxidant activity. Our results may be useful for studies in humans exposed to AT and noise-induced hearing loss related to chronic exposure to occupational noise.
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Affiliation(s)
- D Hanci
- ENT Clinics, Okmeydani Training and Research Hospital, Istanbul, Turkey.
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Aslan A, Ayaz E, İnan I, Duman E, Acar M. Pancreas rotation anomaly with intestinal malrotation. Acta Gastroenterol Belg 2016; 79:383-384. [PMID: 27821038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Acar M, Tonga E, Daskapan A, Karataş M, Tekindal A. Comparison of Physical Activity Levels in Rheumatic Diseases. AKTUEL RHEUMATOL 2016. [DOI: 10.1055/s-0042-100614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Abstract
Objectives: The aim of this study was to evaluate levels of physical activity in patients with rheumatoid arthritis, osteoarthritis and fibromyalgia and to compare the results with both healthy subjects and each other.
Methods: A group of 50 rheumatoid arthritis patients, 95 osteoarthritis patients, 82 fibromyalgia patients and 110 healthy subjects were included in this study. Physical activity levels were assessed by the International Physical Activity Questionnaire (IPAQ).
Results: There were significant differences in walking and total physical activity scores in IPAQ between the rheumatoid arthritis (RA), osteoarthritis (OA), fibromyalgia (FMS) patients and the control group (p<0.05). 36.6% of the fibromyalgia group, 28.4% of the osteoarthritis group, 38% of the rheumatoid arthritis group and 22.7% of the healthy subjects were found to be inactive. 45.1% of the fibromyalgia group, 42.1% of the osteoarthritis group, 46% of the rheumatoid arthritis group and 36.4% of the healthy subjects were found to be insufficiently active.
Conclusion: As a result, when compared to healthy people, physical activity levels were significantly decreased in patients with rheumatoid arthritis, osteoarthritis, fibromyalgia. The decreases in the physical activity levels were clearer in patients with rheumatoid arthritis than in patients with osteoarthritis and fibromyalgia. Recommending regular physical activity should be integral to rheumatic disease management and walking offers a potentially accessible, inexpensive, and acceptable physical activity intervention.
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Affiliation(s)
- M. Acar
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Baskent University, Ankara, Turkey
| | - E. Tonga
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Marmara University, İstanbul, Turkey
| | - A. Daskapan
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Kırıkkale University, Kırıkkale, Turkey
| | - M. Karataş
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Baskent University, Ankara, Turkey
| | - A. Tekindal
- Faculty of Medicine, Department of Biostatistics, İzmir, İzmir University, Turkey
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Aslan A, Karagöz V, Inan I, Sağıroğlu J, Acar M. Abdominal cocoon with imaging findings: Importance of radiology. Acta Gastroenterol Belg 2015; 78:346-347. [PMID: 26448420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Abdominal cocoon is a rare disease characterized by a thick fibrous membrane surrounding and compressing the small intestines completely or partially, which results in mechanical small bowel obstruction. The clinical findings of the disease include recurrent ileus and subileus episodes, colicky abdominal pain, weight loss, and abdominal distension. The etiology and pathogenesis of abdominal cocoon is not clearly defined. Detection of the disease is essential for accurate treatment. Imaging modalities come into prominence due to the nonspecific clinical findings of the disease.
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San T, Muluk NB, Saylisoy S, Acar M, Cingi C. Nasal septal body and inferior turbinate sizes differ in subjects grouped by sex and age. Rhinology 2014; 52:231-7. [PMID: 25271528 DOI: 10.4193/rhino13.138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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
OBJECTIVES To compare the size of the nasal septal body (SB) and inferior turbinate (IT) of subjects grouped by sex and age. METHOD We measured SB and IT areas (in cm2) bilaterally in computed tomography (CT) sections of 150 para nasal sinuses from 72 males and 78 females. RESULTS The right and left SB areas were smaller in females than in males. In the s25-year-old group, the right IT (RIT) was significantly smaller in females than in males. In the 26-35 and 46-45 age groups, the right SB (RSB) was significantly smaller in females than in males. CONCLUSION The nasal SB may play a role in nasal physiology similar to a turbinate and help support optimal airflow. The vascular and glandular structures of the SB should be investigated in detail, and minimal invasive procedures should be performed in nasal surgery to avoid damaging essential structures.
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Caglar V, Songur A, Acar M, Uygur R, Alkoc OA, Acar T. Volumetric evaluation of fat in the renal sinus in normal subjects using stereological method on computed tomography images and its relationship with body composition. Folia Morphol (Warsz) 2014; 73:302-8. [PMID: 25242158 DOI: 10.5603/fm.2014.0016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/10/2014] [Accepted: 02/28/2014] [Indexed: 11/25/2022]
Abstract
BACKGROUND The aim of the study was: to describe a simple, accurate and practical technique for estimating the volume of adipose tissue within the renal sinus (RS) using stereological method on computed tomography (CT) images; to establish a population database for volume of fat within the RS from 21 to 80 years of age; to investigate the effect of age, gender, body mass index (BMI) and abdominal diameters on RS fat volume in normal subjects. MATERIALS AND METHODS We retrospectively reviewed abdominal CT examinations of 240 patients without renal pathology between the ages of 21 and 80 years. There were 6 groups of patients, with 40 patients for each decade. RESULTS RS fat volumes in the left and right kidney were 5.70 ± 2.87 cm³ and 4.15 ± 2.39 cm³, respectively, in males and 3.51 ± 2.67 cm³ and 2.49 ± 2.16 cm³, respectively, in females. RS fat volume and age were positively correlated for both kidneys (left: r = 0.46; right: r = 0.44; p < 0.001, both), though it appeared to decline after age 70. CONCLUSIONS Quantitative data may allow clinicians to better estimate the age-related RS fat volume changes and help them in decision making.
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Affiliation(s)
- V Caglar
- Department of Anatomy, Faculty of Medicine, Namık Kemal University, Tekirdag, Turkey.
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Öz FN, Koca SB, Tanır G, Ciçek D, Acar M, Zorlu P. Enterobacter cloacae septicaemia complicating rotavirus gastroenteritis: a case report. East Mediterr Health J 2014; 20:514-516. [PMID: 25150360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Affiliation(s)
- F N Öz
- Department of Paediatric Infectious Diseases Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - S B Koca
- Department of Paediatrics, Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - G Tanır
- Department of Paediatric Infectious Diseases Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - D Ciçek
- Department of Paediatrics, Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - M Acar
- Department of Paediatrics, Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
| | - P Zorlu
- Department of Paediatrics, Dr Sami Ulus Maternity and Children's Research and Training Hospital, Ankara, Turkey
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Oz F, Koca S, Tanir G, Cicek D, Acar M, Zorlu P. Enterobacter cloacae septicaemia complicating rotavirus gastroenteritis: a case report. East Mediterr Health J 2014. [DOI: 10.26719/2014.20.8.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Acar M, Sahin H, Oznur M, Bender O, Surgit O, Gunduz E, Gunduz M. 958: Effect of Survivin gene −1547 A>G (rs3764383) polymorphism in Turkish breast cancer patients. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50850-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gunduz M, Acar M, Fakioglu K, Dogan B, Oznur M, Gunduz E. 288: Effect of boric acid on head and neck cancer cell lines. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50256-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gok K, Cemeroglu O, Cakirbay H, Gündüz E, Acar M, Cetin E, Gunduz M, Demircan K. THU0470 The Relationship between Cytosine-Adenine Repeat Polymorphism in the Promoter Region of Adamts 9 (A Distintegrinand Metalloproteinase with Thrombospondin Motif 9) Gene and Clinical and Radiologic Severity of Knee Osteoarthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tonga E, Acar M, Daskapan A. AB1168-HPR Physical Inacivity in Adults with Rheumatic Diseases. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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San T, Muluk N, Saylisoy S, Acar M, Cingi C. Nasal septal body and inferior turbinate sizes differ in subjects grouped by sex and age. Rhinology 2014; 52:231-237. [DOI: 10.4193/rhin13.138] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Acar M, tonga E, daskapan A. AB0840-HPR Physical activity level and physical fitness in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ocak Z, Acar M, Gunduz E, Gunduz M, Demircan K, Uyeturk U, Ozlü T. Effect of hypericin on the ADAMTS-9 and ADAMTS-8 gene expression in MCF7 breast cancer cells. Eur Rev Med Pharmacol Sci 2013; 17:1185-1190. [PMID: 23690187] [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: 06/02/2023]
Abstract
AIM To investigate the effects of hypericin which is obtained from the plant Hypericum perforatum on the expression and the regulation of ADAMTS8 and ADAMTS9 genes in MCF7 breast cancer cells and on the viability of these cells. MATERIALS AND METHODS MCF7 cells were cultured and were separately exposed to 2, 10 and 50 µl/mL of hypericin. After 24 hours, RNA was isolated from these cells and converted to cDNA. The expression levels of ADAMTS8 and ADAMTS9 genes were evaluated using the Reverse Transcription Polymerase Chain Reaction. XTT (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide, disodium salt) cell viability assay was used to determine cytotoxicity. RESULTS ADAMTS9 expression in MCF7 cells were increased 1.8 and 3.6 fold with the use of 2 and 10 µl/mL of hypericin, respectively; and decreased 0.7 fold with the use of 50 µl/mL of hypericin. There was no significant change in the ADAMTS8 expression. Rapid cell death was observed in the cancer cells when hypericin was used at a dose of ≥ 50 µl/mL. CONCLUSIONS The increase in ADAMTS9 expression can be a useful factor in the prevention of possible metastasis in breast cancer and for the occurrence of a tumor suppressive effect. Hypericin increases the expression of ADAMTS9, therefore, it may show its antitumoral and antiapoptotic effects by means of ADAMTS9.
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Affiliation(s)
- Z Ocak
- Department of Medical Genetics, Abant Izzet Baysal University, Bolu, Turkey.
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Bozkurt E, Acar M, Meral K, Arık M, Onganer Y. Photoinduced interactions between coumarin 151 and colloidal CdS nanoparticles in aqueous suspension. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.03.006] [Citation(s) in RCA: 12] [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] [Indexed: 10/28/2022]
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Yavuz V, Çetin N, Acar M, Türk U, Dalgiç O, Tavli T. PP-218 MOBILE AORTIC ROOT ATHEROMA DIAGNOSED BY TRANSESOPHAGEAL ECHOCARDIOGRAPHY AS SOURCE OF RECURRENT CEREBRAL EMBOLISM. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70418-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yavuz V, Çetin N, Dalgiç O, Akkaya B, Dindar C, Acar M, Taşkin U, Uludağ Ö, Tavli T. PP-049 EFFECT OF TURKISH COFFEE ON HEMODYNAMIC PARAMETERS AND RHYTHM IN PATIENTS WITH CORONARY ARTERY DISEASE. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70282-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Esat V, Acar M. Viscoelastic finite element analysis of the cervical intervertebral discs in conjunction with a multi-body dynamic model of the human head and neck. Proc Inst Mech Eng H 2008; 223:249-62. [DOI: 10.1243/09544119jeim421] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This article presents the effects of the frontal and rear-end impact loadings on the cervical spine components by using a multi-body dynamic model of the head and neck, and a viscoelastic finite element (FE) model of the six cervical intervertebral discs. A three-dimensional multi-body model of the human head and neck is used to simulate 15 g frontal and 8.5 g rear-end impacts. The load history at each intervertebral joint from the predictions of the multi-body model is used as dynamic loading boundary conditions for the FE model of the intervertebral discs. The results from the multi-body model simulations, such as the intervertebral disc loadings in the form of compressive, tensile, and shear forces and moments, and from the FE analysis such as the von Mises stresses in the intervertebral discs are analysed. This study shows that the proposed approach that uses dynamic loading conditions from the multi-body model as input to the FE model has the potential to investigate the kinetics and the kinematics of the cervical spine and its components together with the biomechanical response of the intervertebral discs under the complex dynamic loading history.
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Affiliation(s)
- V Esat
- Department of Computer Science/RSI, Loughborough University, Loughborough, Leicestershire, UK
| | - M Acar
- Department of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire, UK
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Canan S, Bozkurt HH, Acar M, Vlamings R, Aktas A, Sahin B, Temel Y, Kaplan S. An efficient stereological sampling approach for quantitative assessment of nerve regeneration. Neuropathol Appl Neurobiol 2008; 34:638-49. [DOI: 10.1111/j.1365-2990.2008.00938.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
OBJECTIVES This study presents an investigation of anti-whiplash features that can be implemented in a car seat to reduce whiplash injuries in the case of a rear impact. The main emphasis is on achieving a seat design with good energy absorption properties. METHODS A biofidelic 50th percentile male multi-body human model for rear impact is developed to evaluate the performance of car seat design concepts. The model is validated using the responses of 7 volunteers from the Japanese Automobile Research Institute (JARI) sled tests, which were performed at an impact speed of 8 kph with a rigid seat and without head restraint and seatbelt. A generic multi-body car seat model is also developed to implement various seatback and recliner properties, anti-whiplash devices, and head restraints. Using the same driving posture and the rigid seat in the JARI sled tests as the basic configuration, several anti-whiplash seats are designed to allow different types of motion for the seatback and seat-pan. RESULTS The anti-whiplash car seat design concepts limit neck internal motion successfully until the head-to-head restraint contact occurs and they exhibit low NIC(max) values (7 m(2)/s(2) on average). They are also effective in reducing neck compression forces and T1 forward accelerations. In principle, these car seat design concepts employ controlled recliner rotation and seat-pan displacement to limit the formation of S-shape. This is accomplished by using anti-whiplash devices that absorb the crash energy in such a way that an optimum protection is provided at different severities. CONCLUSIONS The results indicate that the energy absorbing car seat design concepts all demonstrate good whiplash-reducing performances at the IIWPG standard pulse. Especially in higher severity rear impacts, two of the car seat design concepts reduce the ramping of the occupant considerably.
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Affiliation(s)
- S Himmetoglu
- Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Leicestershire, UK
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Yilmaz S, Acar M, Bukulmez A, Yazicioglu B, Yaprak O, Sen T, Gursel T. The 'leaking' of the perirenal haematoma into peritoneum mimicking acute abdomen in a patient with von Willebrand's disease following blunt abdominal trauma. Haemophilia 2007; 13:672-4. [PMID: 17880462 DOI: 10.1111/j.1365-2516.2007.01511.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Degirmenci B, Haktanir A, Albayrak R, Acar M, Sahin DA, Sahin O, Yucel A, Caliskan G. Sonographically guided fine-needle biopsy of thyroid nodules: the effects of nodule characteristics, sampling technique, and needle size on the adequacy of cytological material. Clin Radiol 2007; 62:798-803. [PMID: 17604771 DOI: 10.1016/j.crad.2007.01.024] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2006] [Revised: 01/11/2007] [Accepted: 01/16/2007] [Indexed: 11/26/2022]
Abstract
AIM To evaluate the effects of sonographic characteristics of thyroid nodules, the diameter of needle used for sampling, and sampling technique on obtaining sufficient cytological material (SCM). MATERIALS AND METHODS We performed sonography-guided fine-needle biopsy (FNB) in 232 solid thyroid nodules. Size-, echogenicity, vascularity, and localization of all nodules were evaluated by Doppler sonography before the biopsy. Needles of size 20, 22, and 24 G were used for biopsy. The biopsy specimen was acquired using two different methods after localisation. In first method, the needle tip was advanced into the nodule in various positions using a to-and-fro motion whilst in the nodule, along with concurrent aspiration. In the second method, the needle was advanced vigorously using a to-and-fro motion within the nodule whilst being rotated on its axis (capillary-action technique). RESULTS The mean nodule size was 2.1+/-1.3 cm (range 0.4-7.2 cm). SCM was acquired from 154 (66.4%) nodules by sonography-guided FNB. In 78 (33.6%) nodules, SCM could not be collected. There was no significant difference between nodules with different echogenicity and vascularity for SCM. Regarding the needle size, the lowest rate of SCM was obtained using 20 G needles (56.6%) and the highest rate of adequate material was obtained using 24 G needles (82.5%; p=0.001). The SCM rate was 76.9% with the capillary-action technique versus 49.4% with the aspiration technique (p<0.001). CONCLUSION Selecting finer needles (24-25 G) for sonography-guided FNB of thyroid nodules and using the capillary-action technique decreased the rate of inadequate material in cytological examination.
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Affiliation(s)
- B Degirmenci
- Department of Radiology, Faculty of Medicine, University of Kocatepe, Afyonkarahisar Turkey.
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Zeyneloglu H, Esinler I, Oktem M, Durak T, Acar M. P-311. Fertil Steril 2006. [DOI: 10.1016/j.fertnstert.2006.07.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
PURPOSE To determine factors that affect healing index and consolidation time following lengthening of congenitally short metacarpals (brachymetacarpia). METHODS 18 metacarpals of 8 young women (mean age, 18.6 years) were lengthened using the callus distraction technique. The results, including healing index and consolidation time, were analysed and compared with those in the literature. RESULTS The mean length increase was 16.5 mm (55% of the original length of 30 mm). Age was positively correlated with healing index and consolidation time: younger patients healed faster than older patients. Healing index differed significantly between patients aged 0 to 18 years and those aged 19 to 30 years (p=0.002). Comparison of our results with 9 previous studies confirmed that increased age was associated with a greater healing index and consolidation time. Conversely, the faster the distraction rate, the less the healing index and consolidation time. CONCLUSION Age has the most effect on healing index and consolidation time. Metacarpal lengthening using callus distraction is recommended. Adolescence is the most appropriate time to perform distraction lengthening of a congenitally short metacarpal. This will avoid additional lengthening of normal metacarpals prior to epiphyseal closure.
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Affiliation(s)
- M E Bozan
- Department of Orthopaedics, Medical School of Afyon Kocatepe University, Afyon, Turkey
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Abstract
Only a limited number of case reports concerning the magnetic resonance imaging appearance of lower extremity leiomyoma have been published. To the best of our knowledge, there is not any instance of toe leiomyoma reported with MRI findings. We present MRI findings of a toe leiomyoma and discuss the literature.
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Affiliation(s)
- N Turhan-Haktanir
- Department of Plastic and Reconstructive Surgery, Afyon Kocatepe University Medical Faculty, Afyon, Turkey
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Abstract
Port-wine stains are frequently seen congenital vascular malformations consisting of ectatic dermal capillaries. Acquired port-wine stain that develops later in life is an uncommon vascular lesion that is morphologically identical to a congenital port-wine stain. In the majority of acquired port-wine stains, the aetiology is unknown, but trauma is an important causative factor. Other proposed aetiologies include chronic sun exposure, hormonal changes, frostbite injury, obstruction of the peritoneovenous shunt, herpes zoster infection, and cerebral arteriovenous malformation. Here we report the first case of a patient who had an acquired port-wine stain related to a solid brain tumour.
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Affiliation(s)
- M Kulac
- Department of Dermatology, Faculty of Medicine, Afyon Kocatepe University, Afyon, Turkey.
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Haktanir A, Acar M, Yucel A, Aycicek A, Degirmenci B, Albayrak R. Combined sphenoid and frontal sinus aplasia accompanied by bilateral maxillary and ethmoid sinus hypoplasia. Br J Radiol 2005; 78:1053-6. [PMID: 16249610 DOI: 10.1259/bjr/38163950] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We describe CT scans of a case with bilateral aplasia of frontal and sphenoid sinuses with symmetrical hypoplasia of the ethmoid cellules and maxillary sinuses. This case appears to be first in the English-language literature with these combined findings.
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Affiliation(s)
- A Haktanir
- Departments of Radiology, Afyon Kocatepe University, Faculty of Medicine, Mavi Hastane, 03120, Afyon, Turkey
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Yucel A, Gecici O, Emul M, Oyar O, Gulsoy UK, Dayanir YO, Acar M, Degirmenci B, Haktanir A. Effect of informed consent for intravascular contrast material on the level of anxiety: how much information should be given? Acta Radiol 2005; 46:701-7. [PMID: 16372689 DOI: 10.1080/02841850500215816] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE To compare the effect of two different informed consent forms on patients' anxiety level prior to intravenous contrast material (IVCM) injection. MATERIAL AND METHODS Two different informed consent forms were randomly given to 265 consecutive patients referred for either intravenous pyelography or computed tomography requiring IVCM injections. Form 1 had brief information, including only the common risks and risk factors associated with IVCM, while Form 2 had more comprehensive information. Before being presented with the two different informed consent forms, 191 of the 265 patients filled out two other forms evaluating: 1: How they felt in that particular situation/moment (STAI-T); and 2: How they felt independently of the situation or condition at that moment (STAI-S). After the patients were informed, the STAI-T (measuring how they felt in that particular situation) was filled out once more to see if the anxiety level had changed. RESULTS The anxiety level for 88 patients receiving Form 1 decreased after they were given the informed consent (P=0.033). However, among the 103 patients receiving Form 2, the anxiety level showed a significant increase (P=0.001) compared to the values obtained before Form 2 was given. CONCLUSION These results indicate that informed consent, including brief information about the risk factors and potential adverse reactions of IVCM, reduces anxiety level, while detailed information before the procedure increases the anxiety level.
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Affiliation(s)
- A Yucel
- Department of Radiology, Afyon Kocatepe University School of Medicine, 03200 Afyon, Turkey.
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Haktanir A, Degirmenci B, Acar M, Albayrak R, Yücel A. CT findings of head and neck anomalies in lacrimo-auriculo-dento-digital (LADD) syndrome. Dentomaxillofac Radiol 2005; 34:102-5. [PMID: 15829693 DOI: 10.1259/dmfr/65931528] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We present computed tomography (CT) findings of a boy with lacrimo-auriculo-dento-digital (LADD) syndrome. Bilateral lacrimal glands were not detected and CT imaging of this abnormality in LADD syndrome has not been reported before. Despite suggestions from previous reports of multiple temporal bone abnormalities resulting in hearing losses in these patients, only minor temporal bone abnormalities were seen in our deaf-mute patient. Dysplasia of salivary glands was noted. CT findings of head and neck abnormalities in LADD syndrome are discussed.
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Affiliation(s)
- A Haktanir
- Afyon Kocatepe University Medical Faculty, Kirmizi Hastane, 03200 Afyon, Turkey.
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Abstract
BACKGROUND Hepatitis B virus (HBV) vaccine therapy has two major areas of application: for preventive purposes and for treating patients with chronic hepatitis B. This study aimed to investigate the effect of therapeutic vaccination of inactive hepatitis B surface antigen (HbsAg) carriers using a recombinant hepatitis B vaccine in a randomized-controlled study. PATIENTS AND METHODS The 71 studied patients had never received prior antiviral therapies, were anti-HBe positive, had undetectable HBV-DNA and persistently normal alanine transaminase levels. 31 patients were given three 20 mg intramuscular injections of a preS2/S vaccine (GenHevac-B) on days 0, 30 and 60 and the remaining 40 patients were included in the control group. The efficacy of vaccination was evaluated by testing for HBsAg seroconversion to anti-HBs. Post-vaccination follow-up was for 12 months after the first dose. RESULTS At the end of the follow-up, three out of 31 patients (10%) who received vaccine therapy were able to clear HBsAg from their sera and concomitantly develop anti-HBs antibodies. In contrast, none of the 40 control patients who did not received vaccine therapy had decreased their levels of HBsAg or elicited anti-HBs antibodies (p = 0.079). In three vaccinated patients serum HBsAg became undetectable approximately by the 3rd month of vaccine therapy and HBsAg seroconversion was seen to be durable in all patients in the follow-up period. CONCLUSION This study offers the first direct evidence, based on a controlled study, that the recombinant HBV vaccine has no great effect in enhancing the rate of HBsAg seroconversion in inactive HBsAg carriers. More efficient strategies, such as an increase in the dose and number of immunizations, should be evaluated further in large controlled trials.
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Affiliation(s)
- K Yalcin
- Division of Hepatology, Dept. of Internal Medicine, Dicle University School of Medicine, 21280, Diyarbakir, Turkey.
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Kemaloğlu S, Ozkan U, Bükte Y, Acar M, Ceviz A. Growth rate of cerebral hydatid cyst, with a review of the literature. Childs Nerv Syst 2001; 17:743-5. [PMID: 11862441 DOI: 10.1007/s003810100498] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2001] [Revised: 06/01/2001] [Indexed: 11/29/2022]
Abstract
This extremely rare case was one of secondary solitary cerebral echinococcosis associated with possible cerebral thromboembolism. A 7-year-old girl living in a rural area was admitted to our hospital with a history of headache, right-sided hemiparesis, and dysphasia. She had been treated 6 months previously for a cerebral infarct, diagnosed from sudden altered consciousness and a myoclonic generalised convulsion. The growth rate determined for the cerebral hydatid cyst was about 4.5 cm during the 6-month period. In children a parasitic cyst can be the source of a cerebral embolus, particularly in areas where hydatid disease resulting from cardiac echinococcosis is endemic.
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Affiliation(s)
- S Kemaloğlu
- Department of Neurosurgery, School of Medicine, Dicle University, Diyarbakir, Turkey.
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Ulgen MS, Bilici A, Acar M, Toprak N. The relationship of coronary artery disease and carotid Doppler flow velocity and resistance index in patients with no significant carotid stenosis. Angiology 2001; 52:433-4. [PMID: 11437036 DOI: 10.1177/000331970105200611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- M S Ulgen
- Dicle University, Faculty of Medicine, Department of Cardiology, Diyarbakir, Turkey.
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Ulgen MS, Bilici A, Acar M, Onder H, Sucu M, Toprak N. [The relation of coronary artery disease with Doppler flow velocity and resistance index in cases without significant carotid artery stenosis]. Anadolu Kardiyol Derg 2001; 1:5-9, AXII. [PMID: 12122971] [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: 02/25/2023]
Abstract
OBJECTIVE Atherosclerosis causes functional vasomotor changes as well as well as atheromatous carotid plaques and luminal stenosis resulting in mechanical effect. The relation between functional vasomotor changes in carotid arteries and extent of coronary artery disease is unknown. In our study, the probable relationship between carotid arterial flow velocities and resistance indexes (RI) with the extent of coronary artery disease (CAD) in patients who do not have significant carotid luminal stenosis was evaluated. METHODS One hundred and fourteen patients (74 males, mean age 53+/-10 years, range 33-72 years) were studied. All patients underwent color Doppler sonography before coronary angiography. Peak systolic flow velocity, end-diastolic flow velocity and resistance index (RI) of right and left common carotid and internal carotid and internal carotid arteries were measured by color Doppler sonographic technique. Doppler parameters were correlated with the extent of CAD and left ventricular ejection fraction. RESULTS Patients were classified on the basis of presence of significant CAD and the number of affected coronary arteries. Thirty-three patients did not have (normal group) and 81 patients had significant coronary arterial stenosis (22 patients with one-vessel disease, 27, with two-vessel disease and 32 patients with three-vessel disease). Flow velocities were the highest in normal group but the lowest in CAD patients, especially when 3 coronary arteries were affected. Correlation analysis demonstrated negative relationship of age, ejection fraction and number of affected coronary arteries with end-diastolic flow velocity, but positive and significant correlation with RI value. CONCLUSION Our study is the first on this object. The results suggest that presence and extent of CAD changes flow velocities and RI values of common and internal carotid arteries. However, further investigations are required before these parameters can be applied as diagnostic criteria.
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Affiliation(s)
- M S Ulgen
- Dicle Universitesi Tip Fakültesi Kardiyoloji.
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Kilic T, Alberta JA, Zdunek PR, Acar M, Iannarelli P, O'Reilly T, Buchdunger E, Black PM, Stiles CD. Intracranial inhibition of platelet-derived growth factor-mediated glioblastoma cell growth by an orally active kinase inhibitor of the 2-phenylaminopyrimidine class. Cancer Res 2000; 60:5143-50. [PMID: 11016641] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Glioblastoma multiforme is the most common primary human brain tumor, and it is, for all practical purposes, incurable in adult patients. The high mortality rates reflect the fact that glioblastomas are resistant to adjuvant therapies (radiation and chemicals), the mode of action of which is cytotoxic. We show here that an p.o.-active small molecule kinase inhibitor of the 2-phenylaminopyrimidine class may have therapeutic potential for glioblastomas. STI571 inhibits the growth of U343 and U87 human glioblastoma cells that have been injected into the brains of nude mice, but it does not inhibit intracranial growth of ras-transformed cells. Studies on a broad panel of genetically validated human and animal cell lines show that STI571 acts by disruption of the ligand:receptor autocrine loops for platelet-derived growth factor that are a pervasive feature of malignant astrocytoma. The cellular response of glioblastoma cells to STI571 does not appear to involve an apoptotic mechanism.
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Affiliation(s)
- T Kilic
- Neurosurgical Laboratories and Brain Tumor Center, Brigham and Women's Hospital, and Department of Surgery, Harvard Medical School, Boston, Massachusetts 02115, USA
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Acar M. Do we need a new word for patients? What's in a name, after all? BMJ 1999; 319:1437. [PMID: 10612645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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Acar M. Serology of lyme borreliosis in some dermatoses (preliminary study). J Eur Acad Dermatol Venereol 1995. [DOI: 10.1016/0926-9959(95)96461-g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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