1
|
Gonca S, Polat B, Ozay Y, Ozdemir S, Kucukkara I, Atmaca H, Dizge N. Investigation of diode laser effect on the inactivation of selected Gram-negative bacteria, Gram-positive bacteria and yeast and its disinfection on wastewater and natural milk. Environ Technol 2023; 44:1238-1250. [PMID: 34709976 DOI: 10.1080/09593330.2021.2000036] [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: 06/16/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Disinfection can be accomplished by adding external chemical agents to kill harmful microorganisms or by removing them using membranes. However, most chemicals are toxic for humans and animals if it is consumed above a certain concentration. Likewise, membranes have fouling problems. The aim of this study is to investigate the effect of diode laser, which is an environmentally friendly application, on pathogenic microorganisms such as Escherichia coli (ATCC 10536), Staphylococcus aureus (ATCC 6538) and Candida albicans. To reveal the effect of diode laser on aforementioned, various parameters have been studied on how diode laser type, laser irradiation time, laser power density, laser penetration efficiency and biofilm inhibition affect microorganisms. As a result of the study, it was observed that the blue laser was more effective than red and green lasers, and the inhibition rates for 15 min at 0.36 W/cm2 laser power density were 65.9% > 34.52% > 43.63% for S. aureus, E. coli and C. albicans, respectively. After 30 min of blue laser irradiation, the microbial growth inhibitions were found as 85.39%, 41.18% and 54.55% for S. aureus, E. coli and C. albicans, respectively. The highest biofilm inhibition was 94.61% when S. aureus cells were exposed to blue laser irradiation for 60 min. The microbial growth kinetics on three microorganisms were tested by using at 0.54 W/cm2 laser power density for 28 h, and there were not observed any microbial development in microbial cultures. Moreover, blue laser irradiation was successfully disinfected wastewater and natural milk at 0.54 W/cm2 laser power density.
Collapse
Affiliation(s)
- Serpil Gonca
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Mersin University, Mersin, Turkey
| | - Barıs Polat
- Department of Physics, Mersin University, Mersin, Turkey
| | - Yasin Ozay
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
| | - Sadin Ozdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, Mersin, Turkey
| | | | - Halil Atmaca
- Department of Physics, Mersin University, Mersin, Turkey
| | - Nadir Dizge
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
| |
Collapse
|
2
|
Cuglan B, Onalan A, Ozturk S, Altuntas E, Demirel AB, Atmaca H, Altintas MS, Yetkin E. Venous leg symptoms in patients with migraine: a potential clue on the pathophysiology of migraine (Vein-Migraine study). Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1980] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Chronic venous disorders (CVD) that conventionally refers to disease of lower and upper extremity venous system encompass a large spectrum of abnormalities in the venous system. Recently, various venous disorders such as hemorrhoids, varicocele and lower extremity varicose veins have been gathered under the term of dilating venous disease (DVeD). So, vascular wall pathology itself has been supposed to be the underlying mechanism of DVeD in different vascular systems. Migraine is a neurovascular disorder which cerebral venous congestion might have role in pathogenesis. Both vascular and neurogenic theories have been postulated for the pathophysiology of migraine. We hypothesized that pathophysiology of migraine might related with DVeD due to vascular theory.
Purpose
The objective was to assess the association between venous disease and migraine by using the Venous Insufficiency Epidemiological and Economic Study-Quality of Life/Symptoms (VEINES-QoL/Sym) questionnaire in migraineurs and non-migraineurs.
Methods
The study was designed as a non-randomized, prospective cohort study and consisted of patients diagnosed with migraine. The control group included age- and sex-matched healthy subjects. All participants were examined for the presence of CVD. Presence of lower extremity venous system disease and subsequent classification has been assessed and categorized according to clinical component of clinical, etiological, anatomical and pathological (CEAP) classification. VEINES-Sym questionnaire was applied to assess venous symptoms. The Migraine Disability Assessment (MIDAS) questionnaire was used to assess the severity of disease in migraineurs.
Results
Participants were classified into two groups as migraine (+) group (n=130) and migraine (−) group (n=130) (Figure 1). Migraine patients and control group were comparable in terms of clinical status and demographic parameters. The mean score of night cramps, burnings, itching, tingling and throbbing were found to be lower in migraineurs than those of non-migraineurs. In addition, the presence of venous symptoms, aching legs, night cramps, heat/burning sensation, throbbing and tingling were found to be significantly higher in patients with migraine compared with those without migraine (Figure 2). Also, total VEINES-Sym score was lower in patients with migraine compared to control group (34.4±8.7, 37.6±8.12, p=0.003, respectively). Additionally, there was a significant negative correlation between VEINES-Sym score and total MIDAS disability score (r=−0.33, p<0.001) and MIDAS severity levels (r=−0.266, p=0.003) of the migraineurs. Logistic regression analysis revealed that VEINES-Sym score is an independent and statistically significant associate of migraine (OR: 0.95, 95% CI: 0.92–0.98, p=0.001).
Conclusions
We have documented an independent association between migraine and VEINES-Sym score indicating possible pathophysiological link between migraine and CVD.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- B Cuglan
- Beykent University, Istanbul, Turkey
| | - A Onalan
- Istinye University, Neurology, Istanbul, Turkey
| | - S Ozturk
- Bozok University, Cardiology, Yozgat, Turkey
| | - E Altuntas
- Prof. Dr. Ilhan Varank Training and Research Hospital, Cardiology, Istanbul, Turkey
| | - A B Demirel
- Istanbul Training and Research Hospital, Neurology, Istanbul, Turkey
| | - H Atmaca
- Okmeydani Medical Center, Cardiology, Istanbul, Turkey
| | - M S Altintas
- Istanbul Training and Research Hospital, Cardiology, Istanbul, Turkey
| | - E Yetkin
- Derindere Hospital, Cardiology, Istanbul, Turkey
| |
Collapse
|
3
|
Erdem BE, Kiraz U, Vural Ç, Atmaca H, Eruyar AT. Giant mantle cell lymphoma in the soft tissue of the leg: rare presentation. Tumori 2021; 107:NP49-NP53. [PMID: 33745393 DOI: 10.1177/03008916211001925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Mantle cell lymphomas are aggressive, mature B-cell neoplasms characteristically showing overexpression of cyclin D1. Although lymphadenopathy is the most common presentation, involvement of extranodal sites including bone marrow, peripheral blood, liver, gastrointestinal system, and Waldeyer ring is also seen frequently. Soft tissue localization is extremely rare. It has blastoid and pleomorphic subtypes associated with aggressive course. CASE DESCRIPTION We describe a 74-year-old man who had been diagnosed 3 years previously with "mantle cell lymphoma-blastoid type" and presented 3 months ago with a giant mass in the right lower extremity that enlarged rapidly up to 15 cm in a few months. CONCLUSION We present this rare presentation, which was evaluated in favor of hemangioma before biopsy, together with the data in the literature to emphasize the need for differential diagnosis, especially in cases with a clinical history.
Collapse
Affiliation(s)
- Büşra Erşan Erdem
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Umay Kiraz
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Çiğdem Vural
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Halil Atmaca
- Faculty of Health Sciences, Orthopaedics and Traumatology, Final International University, Kyrenia, TRNC, Girne, Cyprus
| | - Ahmet Tuğrul Eruyar
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| |
Collapse
|
4
|
Civan O, Atmaca H, Uğur L. Biomechanical comparison of double versus triple button reconstruction techniques in patients with acromioclavicular joint dislocation. Int J Med Robot 2019; 16:e2057. [DOI: 10.1002/rcs.2057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/10/2019] [Accepted: 11/06/2019] [Indexed: 01/18/2023]
Affiliation(s)
- Osman Civan
- Elmalı State Hospital, Department of Orthopaedics and Traumatology Antalya Turkey
| | - Halil Atmaca
- ArtroKlinik, Department of Orthopaedics and Traumatology Kocaeli Turkey
| | | |
Collapse
|
5
|
Abstract
PURPOSE The aim of this study was to investigate the possible association of insulin-like growth factor-1 (IGF-1) with the pathogenesis of non-functioning adrenocortical adenomas (NFAs). METHODS This study included 50 female patients (mean age 54 years) with NFAs, 55 patients (mean age 48 years; 20 male, 35 female) with acromegaly and 38 female control subjects (mean age 58 years). Body mass index (BMI) and waist circumference (WC) of the subjects were recorded and blood samples for IGF-1 were taken. Insulin resistance was calculated using the homeostatic model assessment (HOMA) score. Since most of the acromegaly patients had been using medicine that could have effected insulin resistance, HOMA scores were calculated only in patients with NFAs and the controls. Computerized tomography or magnetic resonance imaging was taken of the acromegalics and controls to detect adrenal mass frequency. RESULTS The mean age was similar among the groups. As expected, the serum IGF-1 levels were significantly higher in patients with acromegaly than in patients with NFAs and the controls (p < 0.001). Although BMI, WC, and serum IGF-1 levels were significantly higher (p < 0.001) in patients with NFAs, the HOMA scores were similar between patients with NFAs and control groups. Although none of the control subjects had adrenal masses, NFAs were detected in 14 (25%) out of 55 acromegalic patients. CONCLUSIONS Higher serum IGF-1 levels in patients with NFAs compared to the control group and an increased prevalence of NFAs in acromegaly patients compared to control subjects and the general population suggest an association of IGF-1 with the etiopathogenesis of NFA.
Collapse
Affiliation(s)
- C T Bahadir
- Department of Endocrinology and Metabolism, Faculty of Medicine, Ondokuz Mayis University, Kurupelit, 55139, Samsun, Turkey
| | - G C Ecemis
- Department of Endocrinology and Metabolism, Faculty of Medicine, Ondokuz Mayis University, Kurupelit, 55139, Samsun, Turkey
| | - H Atmaca
- Department of Endocrinology and Metabolism, Faculty of Medicine, Ondokuz Mayis University, Kurupelit, 55139, Samsun, Turkey.
- Endocrinology and Metabolism, Liv Hospital, Hançerli Mahallesi, F. Sultan Mehmet Cd. No:155, 55020, İlkadım/Samsun, Turkey.
| |
Collapse
|
6
|
Yurekli BS, Karaca B, Kisim A, Bozkurt E, Atmaca H, Cetinkalp S, Ozgen G, Yilmaz C, Uzunoglu S, Uslu R, Saygili F. AT-101 acts as anti-proliferative and hormone suppressive agent in mouse pituitary corticotroph tumor cells. J Endocrinol Invest 2018; 41:233-240. [PMID: 28730425 DOI: 10.1007/s40618-017-0733-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 07/12/2017] [Indexed: 01/19/2023]
Abstract
PURPOSE Gossypol, a naturally occurring compound in cottonseeds, has anticancer effects against several tumor cell lines. It has been extensively studied in clinical trials and is well tolerated with a favorable safety profile. AT-101, a derivative of R (-)-gossypol, binds to Bcl-2 family proteins and induces apoptosis in vitro. Although transsphenoidal surgical excision of the pituitary corticotroph adenoma is the gold standard of care, it is not successful all the time. Medical therapy for Cushing's disease still remains a challenge for the clinicians. We aimed to investigate the cytotoxic and apoptotic effects of AT-101 in mouse pituitary corticotroph tumor AtT20 cells. METHODS Cytotoxic effect of AT-101 was assessed by XTT cell viability assay. Apoptosis was shown by measuring DNA fragmentation and Caspase-3/7 activity. Changes in mRNA expressions of apoptosis-related genes were investigated by qPCR array after treatment with AT-101. ACTH was measured by ACTH-EIA Kit. RESULTS AT-101 induced cytotoxicity and apoptosis in AtT20 cells. mRNA levels of pro-apoptotic genes such as TNFR-SF-10B, Bid, PYCARD, Caspase-8, Caspase-3, and Caspase-7 were induced by 2.0-, 1.5-, 1.7-, 1.5-, 1.6-, and 2-fold, respectively, in AtT20 cells by AT-101 treatment. Moreover, some of the anti-apoptotic genes such as BCL2L10, NAIP1, and PAK-7 were reduced by 2.1-, 2.3-, 4.0-fold, respectively, in AtT20 cells. AT-101 also decreased ACTH secretion significantly. CONCLUSION AT-101 induces apoptosis in mouse pituitary corticotroph tumor cells.
Collapse
Affiliation(s)
- B S Yurekli
- Division of Endocrinology and Metabolism, Ege University School of Medicine, 35100, Izmir, Turkey.
| | - B Karaca
- Division Medical Oncology, Tulay Aktas Oncology Hospital, Ege University School of Medicine, 35100, Izmir, Turkey
| | - A Kisim
- Section of Molecular Biology, Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Muradiye/Manisa, Turkey
| | - E Bozkurt
- Section of Molecular Biology, Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Muradiye/Manisa, Turkey
| | - H Atmaca
- Section of Molecular Biology, Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Muradiye/Manisa, Turkey
| | - S Cetinkalp
- Division of Endocrinology and Metabolism, Ege University School of Medicine, 35100, Izmir, Turkey
| | - G Ozgen
- Division of Endocrinology and Metabolism, Ege University School of Medicine, 35100, Izmir, Turkey
| | - C Yilmaz
- Division of Endocrinology and Metabolism, Ege University School of Medicine, 35100, Izmir, Turkey
| | - S Uzunoglu
- Section of Molecular Biology, Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Muradiye/Manisa, Turkey
| | - R Uslu
- Division Medical Oncology, Tulay Aktas Oncology Hospital, Ege University School of Medicine, 35100, Izmir, Turkey
| | - F Saygili
- Division of Endocrinology and Metabolism, Ege University School of Medicine, 35100, Izmir, Turkey
| |
Collapse
|
7
|
Karaca Z, Yarman S, Ozbas I, Kadioglu P, Akturk M, Kilicli F, Dokmetas HS, Colak R, Atmaca H, Canturk Z, Altuntas Y, Ozbey N, Hatipoglu N, Tanriverdi F, Unluhizarci K, Kelestimur F. How does pregnancy affect the patients with pituitary adenomas: a study on 113 pregnancies from Turkey. J Endocrinol Invest 2018. [PMID: 28634705 DOI: 10.1007/s40618-017-0709-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Data regarding pregnancies in relation to pituitary tumors are limited. The effects of pregnancy on pituitary adenomas and the effects of adenoma itself (hormonal activity, mass effects and pituitary insufficiency) and/or treatment on the ongoing gestation and developing fetus were evaluated. METHODS The study was a retrospective study. A questionnaire involving questions regarding medical history before index gestation, history of related pregnancy, result of index gestation and postpartum follow-up of the patients was filled by the investigator in one of the eight Referral Endocrinology Centers from Turkey. RESULTS One hundred and thirteen (83 prolactinoma, 21 acromegaly, 8 NFPA and 1 plurihormonal pituitary adenoma) pregnancies of 87 (60 prolactinoma, 19 acromegaly, 7 NFPA and 1 plurihormonal pituitary adenoma) patients were reviewed. The clinically important pregnancy-related tumor growth of pituitary adenomas was found to be low in previously treated adenomas. Prolactinomas were more likely to increase in size during pregnancy especially if effective prior treatment was lacking. The risk of hypopituitarism is also minimal due to pituitary adenomas during pregnancy. The results of pregnancies did not differ in patients who were on medical treatment or not for prolactinomas and acromegaly during gestation. Neural tube defect and microcephaly associated with maternal cabergoline use; Down syndrome and corpus callosum agenesis associated with maternal bromocriptine use; unilateral congenital cataract, craniosynostosis and microcephaly associated with maternal acromegaly were detected for the first time. CONCLUSION Medical treatment can be safely done stopped in patients with prolactinoma and acromegaly when pregnancy is confirmed and reinstituted when necessary. Prospective studies may help to determine the effects of medical treatment during gestation on the mother and fetus.
Collapse
Affiliation(s)
- Z Karaca
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - S Yarman
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - I Ozbas
- Department of Endocrinology, İstanbul University Cerrahpaşa Medical School, Istanbul, Turkey
| | - P Kadioglu
- Department of Endocrinology, İstanbul University Cerrahpaşa Medical School, Istanbul, Turkey
| | - M Akturk
- Department of Endocrinology, Gazi University Medical School, Ankara, Turkey
| | - F Kilicli
- Department of Endocrinology, İstanbul Medipol University Medical School, Istanbul, Turkey
| | - H S Dokmetas
- Department of Endocrinology, İstanbul Medipol University Medical School, Istanbul, Turkey
| | - R Colak
- Department of Endocrinology, Ondokuz Mayis University Medical School, Samsun, Turkey
| | - H Atmaca
- Department of Endocrinology, Ondokuz Mayis University Medical School, Samsun, Turkey
| | - Z Canturk
- Department of Endocrinology, Kocaeli University Medical School, Kocaeli, Turkey
| | - Y Altuntas
- Department of Endocrinology, Şişli Hamidiye Etfal Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - N Ozbey
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - N Hatipoglu
- Department of Pediatric Endocrinology, Erciyes University Medical School, Kayseri, Turkey
| | - F Tanriverdi
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - K Unluhizarci
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey
| | - F Kelestimur
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey.
| |
Collapse
|
8
|
Atmaca H, Memisoglu K, Baran T, Kesemenli CC. Treatment of calcaneal fractures with closed reduction and the Endobutton-assisted technique: short-term analysis. J Am Podiatr Med Assoc 2016; 105:33-41. [PMID: 25675224 DOI: 10.7547/8750-7315-105.1.33] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Closed reduction and percutaneous pinning, open reduction and internal fixation, and primary arthrodesis are procedures used in the surgical treatment of calcaneal fractures. This study presents short-term clinical and radiologic results of patients with calcaneal fractures treated by closed indirect reduction with Endobutton-assisted minimally invasive osteosynthesis. METHODS Twenty-one feet of 18 patients (four women and 14 men) with calcaneal fractures were retrospectively analyzed. Böhler and Gissane angles were measured from the preoperative, postoperative, and latest follow-up lateral radiographs of the feet. American Orthopaedic Foot and Ankle Society (AOFAS) scores were used for the 6-month and latest follow-up clinical assessments. RESULTS The mean preoperative Böhler angle of 17.1° was corrected to a mean of 20.4° postoperatively. The mean value of this angle measured at the time of latest follow-up was 21.3°. The mean preoperative and postoperative Gissane angles were 116° and 117.8°, respectively. The mean value of this angle measured at the time of latest follow-up was 117.4°. The mean 6-month postoperative AOFAS score was 59.8 points. The mean AOFAS score at the time of latest follow-up (79.1 points) was significantly higher than the mean score 6 months postoperatively (P < .001). Regarding the latest follow-up AOFAS scores, four were poor, four were moderate, ten were good, and three were excellent. CONCLUSIONS With a low learning curve and satisfactory clinical outcomes, this technique can be used in acute, edematous cases with soft-tissue injuries to avoid calcaneal enlargement, infection, and soft-tissue problems.
Collapse
Affiliation(s)
- Halil Atmaca
- Department of Orthopaedics and Traumatology, Akdeniz University, School of Medicine, Antalya, Turkey
| | - Kaya Memisoglu
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Tuncay Baran
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Cumhur Cevdet Kesemenli
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| |
Collapse
|
9
|
Sarman H, Muezzinoglu US, Memisoglu K, Aydin A, Atmaca H, Baran T, Odabas Ozgur B, Ozgur T, Kantar C. Comparison of Semi-Invasive "Internal Splinting" and Open Suturing Techniques in Achilles Tendon Rupture Surgery. J Foot Ankle Surg 2016; 55:965-70. [PMID: 27338652 DOI: 10.1053/j.jfas.2016.04.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 02/03/2023]
Abstract
The goal of the present study was to evaluate the semi-invasive "internal splinting" (SIIS) method for repair of Achilles tendon rupture relative to open repair with Krakow sutures. Efficacy was evaluated based on the clinical and functional outcomes, postoperative magnetic resonance imaging measurements, isokinetic results, and surgical complication rates. Functional measurements included the Thermann and American Orthopaedic Foot and Ankle Society (AOFAS) ankle scores, bilateral ankle dorsiflexion, and plantar flexion measurements. Magnetic resonance imaging was used to compare the bilateral length and thickness of each Achilles tendon. The isokinetic outcomes were evaluated using a Biodex System 3 dynamometer. Of the 45 patients meeting the inclusion criteria, 24 were treated by SIIS and 21 by the open Krackow suture technique. The mean follow-up time for all patients was 43.7 (range 6 to 116) months. In the SIIS group, patients returned to normal daily activities after 7.2 (range 6 to 8) weeks compared with 14.3 (range 12 to 15) weeks in the open surgery group. The AOFAS ankle scores were 93.5 (range 82 to 100) points in the open repair group and 96.2 (range 86 to 100) points in the SIIS group. The Thermann scores were 80.4 (range 53 to 91) points for the open repair group and 87.9 (range 81 to 100) points for the SIIS method. The mean Achilles length on the operated side measured using magnetic resonance imaging was 175.06 (range 110 to 224) mm and 177.76 (range 149 to 214) mm for the open surgery and SIIS groups, respectively. Sensory impairment in the territory of the sural nerve was identified in 1 patient immediately after SIIS surgery, although this defect had completely resolved within 12 months. SIIS yielded better outcomes relative to the open surgery group according to the isokinetic measurements. Taken together, these data indicate the SIIS method for Achilles tendon ruptures performed better in terms of both functional and objective outcomes compared with open surgery.
Collapse
Affiliation(s)
- Hakan Sarman
- Assistant Professor, Department of Orthopedics and Traumatology, Abant Izzet Baysal University School of Medicine, Bolu, Turkey.
| | - Umit Sefa Muezzinoglu
- Professor, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Kaya Memisoglu
- Associate Professor, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | | | - Halil Atmaca
- Associate Professor, Department of Orthopedics and Traumatology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Tuncay Baran
- Surgeon, Department of Orthopedics and Traumatology, Erzurum Regional Training and Research Hospital, Erzurum, Turkey
| | - Bahar Odabas Ozgur
- Assistant Professor, Department of Sports Management, Kocaeli University Physical Education and Sports High School, Kocaeli, Turkey
| | - Turgay Ozgur
- Associate Professor, Department of Sports Management, Kocaeli University Physical Education and Sports High School, Kocaeli, Turkey
| | - Cengizhan Kantar
- Resident Physician, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| |
Collapse
|
10
|
Gokkus K, Saylik M, Atmaca H, Sagtas E, Aydin AT. Limited distal clavicle excision of acromioclavicular joint osteoarthritis. Orthop Traumatol Surg Res 2016; 102:311-8. [PMID: 26969210 DOI: 10.1016/j.otsr.2016.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 01/02/2016] [Accepted: 01/12/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Resection of the distal aspect of clavicle has a well-documented treatment modality in case of acromioclavicular joint osteoarthritis resistant to conservative treatment. HYPOTHESIS Limited (mean ∼0.5cm distal end of clavicle resection) distal clavicle excision of A-C joint arthritis in cases resistant to conservative treatment may reduce the pain and improve the shoulder function. MATERIAL AND METHODS In this study, we retrospectively evaluated the results of limited distal clavicle excision of acromioclavicular joint osteoarthritis resistant to conservative treatment. All patients were evaluated by using the Visual Analogue Scale (VAS) and UCLA shoulder rating scale (University of California Los Angeles), either before surgery or final follow-up period for pain and functional results, respectively. RESULTS A total of 110 patients (48 male, 62 female) with AC joint arthritis, treated between the years of 2008-2012, were retrospectively analyzed. A total of 30 patients (12 male, 18 female) who failed to show improvement with conservative treatment underwent limited surgical open excision of distal clavicle. The mean age of the study population was 52.5±1.2 years. The mean follow-up period was 27±1.3 months. The mean preoperative VAS score was 83.6±5.58 (range, 70-90) while mean VAS was 26.6±9.3 (range, 10-50) at the final follow-up. There was a statistically significant difference between pre- and postoperative VAS scores in patients who had treated by surgical approach (P<0.001). The mean UCLA score of the patients increased postoperatively from 11.5 (range, 9-14) to 29.2 (range, 27-32) at the final follow-up. There was a statistically significant difference between the two time periods with respect to UCLA scores (P<0.001). DISCUSSION AND CONCLUSION In patients with AC osteoarthritis resistant to conservative therapy, the hypothesized limited clavicle excision (mean ∼0.5cm distal end of clavicle resection with preserving coracoclavicular ligaments and inferior capsule) reduced the pain and improved the shoulder function. CONCLUSION Our midterm follow-up (mean 27 months) results showed that limited distal clavicle excision of patients with AC joint osteoarthritis resistant to conservative treatment (0.5cm distal end of clavicle resection with preserving inferior capsule, and coracoclavicular ligaments) reduced the pain and improved the shoulder function. LEVEL OF EVIDENCE IV (Retrospective study).
Collapse
Affiliation(s)
- K Gokkus
- Orthopaedics and Trauma, Ozel Antalya Memorial Hospital, zafer mah .yildirim beyazit cad no 91, Kepez Antalya, 07025, Turkey.
| | - M Saylik
- Orthopaedics and Trauma department, Ozel Bursa Bahar Hospita, Bursa, Turkey
| | - H Atmaca
- Orthopaedics and Trauma Department, Akdeniz University School of Medicine, Turkey
| | - E Sagtas
- Radiology Department, Antalya Memorial Hospital, Antalya, Turkey
| | - A T Aydin
- Orthopaedics and Trauma Department, Antalya Memorial Hospital, Antalya, Turkey
| |
Collapse
|
11
|
Gokkus K, Atmaca H, Uğur L, Özkan A, Aydin AT. The relationship between medial meniscal subluxation and stress distribution pattern of the knee joint: Finite element analysis. J Orthop Sci 2016; 21:32-7. [PMID: 26755383 DOI: 10.1016/j.jos.2015.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 11/11/2014] [Revised: 08/09/2015] [Accepted: 09/10/2015] [Indexed: 01/14/2023]
Abstract
BACKGROUND Degenerative changes of the knee joint and clinical follow-up after meniscal subluxation are well documented. In the current study three-dimensional (3D) finite element analysis (FEA) of human lower limb was used to investigate the effect medial meniscal subluxation on the loadings of the knee structures. METHODS Apart from the reference model, a total of ten 3D models were created, according to amount of medial meniscal subluxation. ANSYS® 14 was used to analyze the stress/load distribution, that is to say the maximum equivalent stress (MES) (von Mises stress) on bones, cartilages, ligaments and menisci. MES was expressed as Newton/mm(2) = Megapascal (MPa). RESULTS In a static and standing upright position the MES on all knee structures were evaluated in the reference model. Although MES increased in all structures with the increase of medial meniscal subluxation degree, tibia cartilage was found to be the most affected structure with an increase of 22.73-fold in the 10 mm subluxation model when compared with references values. CONCLUSION This study showed that medial meniscus subluxation is associated with increased loadings on all knee structures especially the tibia cartilage. Also the degree of the medial meniscal subluxation correlates with distribution and the amount of loadings on tibia cartilage which may be a prominent feature of knee osteoarthritis.
Collapse
Affiliation(s)
- Kemal Gokkus
- Antalya Memorial Hospital, Department of Orthopaedics and Traumatology, Antalya, Turkey.
| | - Halil Atmaca
- Akdeniz University, School of Medicine, Department of Orthopaedics and Traumatology, Antalya, Turkey.
| | - Levent Uğur
- Amasya University, Faculty of Technology, Department of Automotive Engineering, Amasya, Turkey.
| | - Arif Özkan
- University of Duzce, Engineering Faculty, Department of Biomedical Engineering, Duzce, Turkey.
| | - Ahmet Turan Aydin
- Antalya Memorial Hospital, Department of Orthopaedics and Traumatology, Antalya, Turkey.
| |
Collapse
|
12
|
Atmaca H, Uğur L, Özkan A, Grassi Mantelli A, Erzincanli F. Changes in the loadings on the shoulder girdle in the case of scapulothoracic fusion. Int J Med Robot 2015; 12:538-46. [PMID: 26190477 DOI: 10.1002/rcs.1683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 03/01/2015] [Revised: 06/04/2015] [Accepted: 06/11/2015] [Indexed: 11/11/2022]
Abstract
BACKGROUND Scapulothoracic fusion (STF) may be an alternative and salvage procedure in the treatment of scapular winging. The biomechanical effects of this procedure on the shoulder girdle have not been previously considered. The purpose of this study is to demonstrate the relationship between STF and the stress distribution pattern of the shoulder girdle. METHODS Three-dimensional solid modeling of the shoulder girdle was carried out using virtual finite element modeling. STF was applied to the reference model obtained in a computer environment. Dynamic and nonlinear analysis was performed. RESULTS Stress distributions in joints and ligaments were calculated. With respect to loading on the joints, maximum equivalent stresses increased on acromioclavicular (AC) and GH joints in the case of STF during abduction and flexion respectively. CONCLUSION Results revealed that STF is a non-physiological, static procedure leading to load increase on GH and AC joint cartilages, which may be a cause of potential joint osteoarthritis. Copyright © 2015 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Halil Atmaca
- Akdeniz University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Antalya, Turkey
| | - Levent Uğur
- Amasya University, Technical Sciences Vocational School, Department of Automative Technology, Amasya, Turkey
| | - Arif Özkan
- Duzce University, Engineering Faculty, Department of Biomedical Engineering, Duzce, Turkey
| | - Alberto Grassi Mantelli
- Medical University of Milan, Istituto Ortopedico Gaetano Pini, Department of Orthopaedic Oncology, Milan, Italy
| | - Fehmi Erzincanli
- Düzce University, Engineering Faculty, Department of Mechanical Engineering, Düzce, Turkey
| |
Collapse
|
13
|
Sarman H, Atmaca H, Cakir O, Muezzinoglu US, Anik Y, Memisoglu K, Baran T, Isik C. Assessment of Postoperative Tendon Quality in Patients With Achilles Tendon Rupture Using Diffusion Tensor Imaging and Tendon Fiber Tracking. J Foot Ankle Surg 2015; 54:782-6. [PMID: 25736446 DOI: 10.1053/j.jfas.2014.12.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Indexed: 02/03/2023]
Abstract
Although pre- and postoperative imaging of Achilles tendon rupture (ATR) has been well documented, radiographic evaluations of postoperative intratendinous healing and microstructure are still lacking. Diffusion tensor imaging (DTI) is an innovative technique that offers a noninvasive method for describing the microstructure characteristics and organization of tissues. DTI was used in the present study for quantitative assessment of fiber continuity postoperatively in patients with acute ATR. The data from 16 patients with ATR from 2005 to 2012 were retrospectively analyzed. The microstructure of ART was evaluated using tendon fiber tracking, tendon continuity, fractional anisotropy, and apparent diffusion coefficient values by way of DTI. The distal and proximal portions were measured separately in both the ruptured and the healthy extremities of each patient. The mean patient age was 41.56 ± 8.49 (range 26 to 56) years. The median duration of follow-up was 21 (range 6 to 80) months. The tendon fractional anisotropy values of the ruptured Achilles tendon were significantly lower statistically than those of the normal side (p = .001). However, none of the differences between the 2 groups with respect to the distal and proximal apparent diffusion coefficient were statistically significant (p = .358 and p = .899, respectively). In addition, the fractional anisotropy and apparent diffusion coefficient measurements were not significantly different in the proximal and distal regions of the ruptured tendons compared with the healthy tendons. The present study used DTI and fiber tracking to demonstrate the radiologic properties of postoperative Achilles tendons with respect to trajectory and tendinous fiber continuity. Quantifying DTI and fiber tractography offers an innovative and effective tool that might be able to detect microstructural abnormalities not appreciable using conventional radiologic techniques.
Collapse
Affiliation(s)
- Hakan Sarman
- Assistant Professor, Department of Orthopedics and Traumatology, Abant Izzet Baysal University School of Medicine, Bolu, Turkey.
| | - Halil Atmaca
- Assistant Professor, Department of Orthopedics and Traumatology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Ozgur Cakir
- Radiology Specialist Physician, Department of Radiology, Ministry of Health Batman Regional Hospital, Batman, Turkey
| | - Umit Sefa Muezzinoglu
- Professor, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Yonca Anik
- Professor, Department of Radiology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Kaya Memisoglu
- Associate Professor, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Tuncay Baran
- Resident Physician, Department of Orthopedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Cengiz Isik
- Assistant Professor, Department of Orthopedics and Traumatology, Abant Izzet Baysal University School of Medicine, Bolu, Turkey
| |
Collapse
|
14
|
Gökkuş K, Sagtas E, Saylik M, Aydın AT, Atmaca H. Luxatio erecta humeri: Report of a swimming injury with analysis of the mechanism of the injury and associated injuries in literature. J Emerg Trauma Shock 2015; 8:43-8. [PMID: 25709253 PMCID: PMC4335157 DOI: 10.4103/0974-2700.150397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 11/02/2014] [Indexed: 11/04/2022] Open
Abstract
Inferior shoulder dislocation also referred to as luxatio erecta is an unusual and rare type of shoulder dislocation. Its incidence is about 0.5% among all shoulder dislocations. After an exhaustive search of all the available literature we were unable to find a swimming accident case that did not have other associated injuries and an uneventful reduction. The mechanism of the injury was mostly related to direct axial loading and indirect hyperabduction lever arm. We would like to emphasize the importance of this being a swimming accident, a type of accident that requires awareness of the possibility of dangerous asphyxia injuries caused by panic in the water (swimming pool, river, lake, sea, etc.). We described the nature of the injury and review the literature concerning the mechanism of the injury and associated neurovascular impairment at admission time. We also presented a supplemental video to contribute to the education of young residents and orthopedic surgeons.
Collapse
Affiliation(s)
- Kemal Gökkuş
- Department of Orthopaedics and Trauma, Antalya Memorial Hospital, Antalya, Turkey
| | - Ergin Sagtas
- Department of Radiodiagnostic, Antalya Memorial Hospital, Antalya, Turkey
| | - Murat Saylik
- Department of Orthopaedics and Trauma, Ozel Bahar Hospital, Bursa, Turkey
| | - Ahmet Turan Aydın
- Department of Orthopaedics and Trauma, Antalya Memorial Hospital, Antalya, Turkey
| | - Halil Atmaca
- Department of Orthopaedics and Trauma, Akdeniz University School of Medicine, Merkez, Antalya, Turkey
| |
Collapse
|
15
|
Inanmaz ME, Kose KC, Isik C, Atmaca H, Basar H. Can hyperbaric oxygen be used to prevent deep infections in neuro-muscular scoliosis surgery? BMC Surg 2014; 14:85. [PMID: 25345616 PMCID: PMC4233033 DOI: 10.1186/1471-2482-14-85] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 10/15/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The prevalence of postoperative wound infection in patients with neuromuscular scoliosis surgery is significantly higher than that in patients with other spinal surgery. Hyperbaric oxygen has been used as a supplement to treat postsurgical infections. Our aim was to determine beneficiary effects of hyperbaric oxygen treatment in terms of prevention of postoperative deep infection in this specific group of patients in a retrospective study. METHODS Forty two neuromuscular scoliosis cases, operated between 2006-2011 were retrospectively reviewed. Patients who had presence of scoliosis and/or kyphosis in addition to cerebral palsy or myelomeningocele, postoperative follow-up >1 year and posterior only surgery were the subjects of this study. Eighteen patients formed the Hyperbaric oxygen prophylaxis (P-HBO) group and 24, the control group. The P-HBO group received 30 sessions of HBO and standard antibiotic prophylaxis postoperative, and the control group (received standard antibiotic prophylaxis). RESULTS In the P-HBO group of 18 patients, the etiology was cerebral palsy in 13 and myelomeningocele in 5 cases with a mean age of 16.7 (11-27 yrs). The average follow-up was 20.4 months (12-36mo). The etiology of patients in the control group was cerebral palsy in 17, and myelomeningocele in 7 cases. The average age was 15.3 years (8-32 yrs). The average follow-up was 38.7 months (18-66mo). The overall incidence of infection in the whole study group was 11.9% (5/42). The infection rate in the P-HBO and the control group were 5.5% (1/18), and 16.6% (4/24) respectively. The use of HBO was found to significantly decrease the incidence of postoperative infections in neuromuscular scoliosis patients. CONCLUSION In this study we found that hyperbaric oxygen has a possibility to reduce the rate of post-surgical deep infections in complex spine deformity in high risk neuromuscular patients.
Collapse
Affiliation(s)
- Mustafa Erkan Inanmaz
- Department of Orthopedics and Traumatology, Sakarya University Faculty of Medicine, Sakarya Universitesi Araştırma Hastanesi Ortopedi ve Travmatoloji Kliniği, Sakarya, Turkey.
| | | | | | | | | |
Collapse
|
16
|
Atmaca H, Inanmaz ME, Bal E, Caliskan I, Kose KC. Axial plane analysis of Lenke 1A adolescent idiopathic scoliosis as an aid to identify curve characteristics. Spine J 2014; 14:2425-33. [PMID: 24534387 DOI: 10.1016/j.spinee.2014.02.015] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 01/27/2014] [Accepted: 02/03/2014] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Adolescent idiopathic scoliosis (AIS) is a complex three-dimensional (3D) deformity of the spine involving deviations in the frontal plane, modifications of the sagittal profile, and rotations in the transverse plane. Although Lenke classification system is based on 2D radiographs and includes sagittal thoracic and coronal lumbar modifiers, Lenke et al. suggested inclusion of axial thoracic and lumbar modifiers in the analysis. PURPOSE To analyze axial plane of Lenke 1A curves to identify curve characteristics. STUDY DESIGN Retrospective study. PATIENT SAMPLE Seventy patients (49 women, 21 men) with Lenke Type 1A idiopathic scoliosis were analyzed. OUTCOME MEASURES Coronal, sagittal, and axial parameters were measured from plain radiographs that were obtained at initial medical examination of the patients. METHODS Coronal and sagittal plane and whole spine segmental vertebra rotations from thoracic 1 to lumbar 5 were evaluated in 70 AIS patients with Lenke 1A curves by using Drerup method. Three different subgroups were identified according to magnitude and direction of lower end vertebra (LEV) rotation. RESULTS In Group 1 (Lenke 1A1), the direction of LEV rotation was same with other vertebrae in the main curve and the magnitude of the LEV rotation was less than -0.5°. In Group 2 (Lenke 1A2), the rotation of LEV was between -0.5° and 0.5° and so was accepted as neutral. In Group 3 (Lenke 1A3), the rotation of LEV had opposite direction with vertebrae in the main curve and the magnitude of LEV rotation was more than 0.5°. The mean thoracic Cobb angle of patients with Lenke 1A idiopathic scoliosis was 51.1° (range 37°-80°), whereas the mean lumbar Cobb angle was 16.4° (range 0°-32°). The mean angle of trunk rotation of the patients was 5.7° (range 1°-16°). In terms of maximum thoracic vertebra rotation, the mean rotation angle of Lenke 1A idiopathic curves was -18.9° (range -(9.8°-44.7°)). The mean maximum lumbar vertebra rotation was 4.5° (range -7.2° to 15.1°). CONCLUSIONS Addition of axial plane analysis to conventional coronal and sagittal evaluations in patients with Lenke 1A curves may reveal inherent structural differences that are not apparent in single planar radiographic assessments and may necessitate a different surgical strategy.
Collapse
Affiliation(s)
- Halil Atmaca
- Department of Orthopedics and Traumatology, Faculty of Medicine, Akdeniz University, Dumlupinar Avenue, 07058, Konyaalti, Antalya, Turkey
| | - Mustafa Erkan Inanmaz
- Department of Orthopedics and Traumatology, Faculty of Medicine, Sakarya University, Adnan Menderes street, 54100, Sakarya, Turkey
| | - Emre Bal
- Department of Orthopedics and Traumatology, Faculty of Medicine, Sakarya University, Adnan Menderes street, 54100, Sakarya, Turkey
| | - Islam Caliskan
- Department of Orthopedics and Traumatology, Faculty of Medicine, Sakarya University, Adnan Menderes street, 54100, Sakarya, Turkey
| | - Kamil Cagri Kose
- Department of Orthopedics and Traumatology, Faculty of Medicine, Sakarya University, Adnan Menderes street, 54100, Sakarya, Turkey.
| |
Collapse
|
17
|
Tanriverdi F, Dokmetas HS, Kebapcı N, Kilicli F, Atmaca H, Yarman S, Ertorer ME, Erturk E, Bayram F, Tugrul A, Culha C, Cakir M, Mert M, Aydin H, Taskale M, Ersoz N, Canturk Z, Anaforoglu I, Ozkaya M, Oruk G, Hekimsoy Z, Kelestimur F, Erbas T. Etiology of hypopituitarism in tertiary care institutions in Turkish population: analysis of 773 patients from Pituitary Study Group database. Endocrine 2014; 47:198-205. [PMID: 24366641 DOI: 10.1007/s12020-013-0127-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 09/23/2013] [Accepted: 11/13/2013] [Indexed: 02/02/2023]
Abstract
Hypopituitarism in adult life is commonly acquired and the main causes are known as pituitary tumors and/or their treatments. Since there are new insights into the etiology of hypopituitarism and presence of differences in various populations, more studies regarding causes of hypopituitarism are needed to be done in different ethnic groups with sufficient number of patients. Therefore, we performed a multi-center database study in Turkish population investigating the etiology of hypopituitarism in 773 patients in tertiary care institutions. The study was designed and coordinated by the Pituitary Study Group of SEMT (The Society of Endocrinology and Metabolism of Turkey). Nineteen tertiary reference centers (14 university hospitals and 5 training hospitals) from the different regions of Turkey participated in the study. It is a cross-sectional database study, and the data were recorded for 18 months. We mainly classified the causes of hypopituitarism as pituitary tumors (due to direct effects of the pituitary tumors and/or their treatments), extra-pituitary tumors and non-tumoral causes. Mean age of 773 patients (49.8 % male, 50.2 % female) was 43.9 ± 16.1 years (range 16-84 years). The most common etiology of pituitary dysfunction was due to non-tumoral causes (49.2 %) among all patients. However, when we analyze the causes according to gender, the most common etiology in males was pituitary tumors, but the most common etiology in females was non-tumoral causes. According to the subgroup analysis of the causes of hypopituitarism in all patients, the most common four causes of hypopituitarism which have frequencies over 10 % were as follows: non-secretory pituitary adenomas, Sheehan's syndrome, lactotroph adenomas and idiopathic. With regard to the type of hormonal deficiencies; FSH/LH deficiency was the most common hormonal deficit (84.9 % of the patients). In 33.8 % of the patients, 4 anterior pituitary hormone deficiencies (FSH/LH, ACTH, TSH, and GH) were present. Among all patients, the most frequent cause of hypopituitarism was non-secretory pituitary adenomas. However, in female patients, present study clearly demonstrates that Sheehan's syndrome is still one of the most important causes of hypopituitarism in Turkish population. Further, population-based prospective studies need to be done to understand the prevalence and incidence of the causes of hypopituitarism in different countries.
Collapse
Affiliation(s)
- F Tanriverdi
- Department of Endocrinology, Erciyes University Medical School, 38039, Kayseri, Turkey,
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Er MS, Altinel L, Eroglu M, Verim O, Demir T, Atmaca H. Suture anchor fixation strength with or without augmentation in osteopenic and severely osteoporotic bones in rotator cuff repair: a biomechanical study on polyurethane foam model. J Orthop Surg Res 2014; 9:48. [PMID: 25148925 PMCID: PMC4237878 DOI: 10.1186/1749-799x-9-48] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 06/09/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of the present study was to compare the results of various types of anchor applications with or without augmentation in both osteopenic and severely osteoporotic bone models. METHODS Two different types of suture anchors were tested in severely osteoporotic (SOP) and osteopenic polyurethane (PU) foam blocks using an established protocol. An Instron machine applied static loading parallel to the axis of insertion until failure, and the mean anchor failure strengths were calculated. The mode of failure (anchor pullout, suture tear) was recorded. The anchors tested included the Corkscrew (CS) (Arthrex Inc., Naples, FL, USA) (without augmentation, polymethylmethacrylate (PMMA)-augmented, and bioabsorbable tricalcium phosphate (TCP) cement-augmented) and Corkscrew FT II (CS FT II) 5.5 mm (without augmentation as used routinely). RESULTS The mean failure loads for both SOP and osteopenic PU foam blocks, respectively, were as follows: CS, 16.2 and 212.4 N; CS with TCP, 75.2 and 396 N; CS with PMMA, 101.2 and 528.8 N; CS FT II, 13.8 and 339.8 N. CONCLUSIONS Augmentation of CS with TCP or PMMA would be essential to SOP bones. In the osteopenic bone model, although anchor fixation augmented with PMMA is the best fixation method, CS augmented with TCP cement or CS FT II without any need for augmentation may also be used as an alternative.
Collapse
Affiliation(s)
- Mehmet Serhan Er
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Akdeniz University, Antalya 07985, Turkey.
| | | | | | | | | | | |
Collapse
|
19
|
Dirican A, Atmaca H, Bozkurt E, Erten C, Karaca B, Uslu R. Novel combination of docetaxel and thymoquinone induces synergistic cytotoxicity and apoptosis in DU-145 human prostate cancer cells by modulating PI3K-AKT pathway. Clin Transl Oncol 2014; 17:145-51. [PMID: 25060568 DOI: 10.1007/s12094-014-1206-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 07/09/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND The treatment of castrate-resistant prostate cancer (CRPC) still remains as an important challenge of daily oncology practice. Docetaxel significantly prolongs overall survival in men with CRPC. Thymoquinone (TQ), one of the flavonoid compounds isolated from Nigealla sativa, has been shown to possess cytotoxic activity against a variety of cancer cell lines. MATERIALS AND METHODS The aim of the study was to investigate the possible synergistic cytotoxic/apoptotic effects of a novel combination, docetaxel and TQ in DU-145 hormone- and drug-refractory prostate cancer cells and their effects on PI3K and ERK signaling pathways. RESULTS We observed that the combination of docetaxel and TQ resulted in a significant synergistic cytotoxicy and apoptosis as compared to any single agent alone, in a dose-dependent manner. It was found that viability of the combination treated cells was not significantly changed in the presence of LY294002 as compared to inhibitor treated cells. However, in the presence of FR180204, viability of combination treated cells was significantly decreased as compared to inhibitor treated cells. In conclusion, cytotoxic effect of the docetaxel and TQ combination is correlated with the block of the PI3K/Akt signaling pathway in DU-145 cells. CONCLUSION Therefore, this combination strategy may be an alternative approach for the challenging era of daily oncologic practice. Also, the combination of docetaxel and TQ might allow a reduction in docetaxel doses and diminish adverse effects of docetaxel while maintaining the therapeutic effect in patients with CRPC.
Collapse
Affiliation(s)
- A Dirican
- Department of Medical Oncology, Izmir Katip Celebi University Ataturk Training and Research Hospital, 35360, Izmir, Turkey,
| | | | | | | | | | | |
Collapse
|
20
|
Kanat M, Goksugur SB, Ozlu T, Tunckale A, Ozturk B, Ozturk FY, Altuntas Y, Suleymanoglu Y, Atmaca H, Yolcu N, Gonenc I, Delibasi T, Zuhur S, Dikbas O, Aktas G, Karagoz Y, Abdul-Ghani MA. The effect of feto-maternal blood type incompatibility on development of gestational diabetes mellitus. Clin Ter 2014; 165:e145-7. [PMID: 24770823 DOI: 10.7471/ct.2014.1698] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To assess the relation between fetal and maternal blood type (ABO, Rh) incompatibility and development of gestational diabetes mellitus (GDM). MATERIALS AND METHODS A total of 500 pregnant women underwent diagnostic test for GDM by a 100-g oral glucose tolerance test (OGTT) after an 8 to 12-h overnight fast participated in this study. OGTT was performed between the 24-28 weeks of gestation, but participants who were at high risk for GDM were tested after the first prenatal visit. In the postpartum period, maternal and infant blood types were determined. Presence of GDM was evaluated in terms of matched and unmatched fetal and maternal ABO and Rh blood types separately. RESULTS GDM was detected in 235 participants. Unmatched ABO blood types between the mother-infant pairs were present in 44.7% (n=105) of GDM (+) and 35.8 % (n=95) of GDM (-) patients. Incompatible feto-maternal ABO blood type was positively correlated with development of GDM which was marginally significant. (p=0.045; R=1.2;95% CL; 1.004-1.48). However, Rh feto-maternal blood type incompatibility was not related with development of GDM. CONCLUSIONS Feto-maternal ABO blood type incompatibility may be a weak risk factor for the development of GDM.
Collapse
Affiliation(s)
- M Kanat
- Departments of Internal Medicine, Istanbul Medipol University, Istanbul
| | - S B Goksugur
- Departments of Pediatrics, Izzet Baysal Women's and Children's Hospital, Bolu
| | - T Ozlu
- Departments of Obstetrics and Gynecology, Medical School, University of Abant Izzet Baysal, Bol
| | - A Tunckale
- Departments of Internal Medicine, Cerrahpasa Medical School, University of Istanbul, Istanbul
| | - B Ozturk
- Departments of Endocrinology and Metabolism, University of Ege, Izmir
| | - F Y Ozturk
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - Y Altuntas
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - Y Suleymanoglu
- Departments of Internal Medicine, University of Acibadem, Istanbul
| | - H Atmaca
- Departments of Endocrinology and Metabolism, University of Ondokuz Mayıs, Samsun
| | - N Yolcu
- Departments of Endocrinology and Metabolism, Haydarpasa Training and Research Hospital, Istanbul
| | - I Gonenc
- Departments of Endocrinology and Metabolism, Haydarpasa Training and Research Hospital, Istanbul
| | - T Delibasi
- Departments of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara
| | - S Zuhur
- Departments of Endocrinology and Metabolism, Sisli Etfal Training and Research Hospital, Istanbul
| | - O Dikbas
- Departments of 1Internal Medicine, Istanbul Medipol University, Istanbul
| | - G Aktas
- Departments of 1Internal Medicine, Istanbul Medipol University, Istanbul
| | - Y Karagoz
- Faculty of Economics and Administrative Sciences, University of Abant Izzet Baysal, Bolu
| | - M A Abdul-Ghani
- Division of Diabetes, University of Texas Health Science Center at San Antonio, Texas, USA
| |
Collapse
|
21
|
Atmaca H, Aydin A, Musaoğlu R. Experimental model of osteoporosis: comparison between ovariectomy and botulinum toxin a. Acta Ortop Bras 2014; 21:340-3. [PMID: 24453694 PMCID: PMC3874984 DOI: 10.1590/s1413-78522013000600009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Accepted: 07/31/2013] [Indexed: 11/25/2022]
Abstract
Objective To evaluate whether Botulinum toxin-A (BTX-A) has a similar effect to that of ovariectomy (OVX) on bone regarding bone mineral densitometry. Methods A total of 51 female rats were randomly divided into three groups of 17 animals each. The rats in the first group formed the control group, without any surgical procedure (Group 1). Group 2 received BTX-A while Group 3 was subjected to OVX. A total of 8 IU of BTX-A was injected into the right femoral region of all rats in Group 2. At baseline and 14 weeks later, bone mineral densities (BMD) of the left and right femurs of all rats in both groups were measured. Results There was no statistically significant difference between the groups with respect to baseline BMD. At the 14th week the BMD of the right femurs were statistically significantly higher in Group 1 than other groups, although there was no statistically significant difference between Groups 2 and 3. The mean BMD results of the left femur in Group 3 were statistically significantly lower than the results in Groups 1 and 2 at the 14th week. Conclusion The results of the current study showed that BTX-A had a similar effect to that of OVX on osteoporosis regarding BMD. Evidence Level I, Experimental, Controlled, Animal Study.
Collapse
|
22
|
Atmaca H, Kesemenli CC, Memişoğlu K, Özkan A, Celik Y. Changes in the loading of tibial articular cartilage following medial meniscectomy: a finite element analysis study. Knee Surg Sports Traumatol Arthrosc 2013. [PMID: 23192762 DOI: 10.1007/s00167-012-2318-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [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] [Indexed: 11/25/2022]
Abstract
PURPOSE Depending on the location and extent of the meniscectomy, loading on the tibial articular cartilage alters. The main purpose of the present study was to analyze the loading on the tibial articular cartilage following medial meniscectomy performed in various location and extent, as well as in the healthy knee, via finite element analyses on the solid models. METHODS Totally, 11 finite element solid models, including the reference model, were created to investigate the effect of location (anterior, posterior, longitudinal) and extent of meniscectomy (25, 50, 75, and 100 %) on loading of tibial articular cartilage. RESULTS Maximum equivalent stress of the tibial cartilage was measured 0.86 Megapascal in the reference model and increased approximately by 78 % in 25 % meniscectomy group, 177.9 % in 50 %, 473.8 % in 75 % meniscectomy group, and 752.6 % in total meniscectomy. When only the amount of meniscal tissue removed was considered ignoring the location of meniscectomy, no significant difference was found in the amount of tissue excised between 25 % meniscectomy and 50 % meniscectomy, as well as between 75 % meniscectomy and total meniscectomy. CONCLUSION In all meniscectomy models, the loadings on tibial articular cartilage increased. Except total meniscectomy, the highest impact was observed in longitudinal 75 % meniscectomy. During the surgical treatment, the contributions of menisci on load absorption by increasing the tibiofemoral contact area must be considered. In fact, the increase in the rate of loading on tibial articular cartilage depends on according to type and amount of meniscectomy.
Collapse
Affiliation(s)
- Halil Atmaca
- Department of Orthopaedics and Traumatology, Midyat State Hospital, Mardin, Turkey,
| | | | | | | | | |
Collapse
|
23
|
Aydin A, Kenar H, Atmaca H, Alici T, Gacar G, Müezzinoğlu ÜS, Karaöz E. The short- and long- term effects of estrogen deficiency on apoptosis in musculoskeletal tissues: an experimental animal model study. Arch Iran Med 2013; 16:271-6. [PMID: 23641740 DOI: 013165/aim.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Estrogen is the major sex steroid affecting the growth, remodeling, and homeostasis of the female skeleton. Estrogen loss in postmenopausal women leads to osteoporosis. The aim of this study was to evaluate the early and long- term effects of estrogen loss on bones, tendons, muscles, and menisci in ovariectomized rats. METHODS Fifteen rats were randomized into three groups of five animals each. The first group was the control group with no additional surgical procedure, but the rest (groups 2 and 3) were bilaterally ovariectomized . All animals in the group 2 were sacrificed at 14th week to evaluate the short- term effect, and all of other animals in the groups 1 and 3 were sacrificed at 28th week to analyze the long- term effect of estrogen loss in the ovariectomized group and to control with the group 1. Quadriceps muscles, Achilles tendons, menisci, and femur cortical bones from both lower extremities were taken. The amount of apoptosis was measured. RESULTS There was a significant increase in cell apoptosis in bones, muscles, and tendons with insignificant increase in cell apoptosis in menisci at early and late periods in rats with ovariectomies than the control. CONCLUSION The results indicated that estrogen loss after ovariectomy does not only affect bones; it may also increase cell apoptosis in different tissues such as muscles, tendons, and menisci.
Collapse
Affiliation(s)
- Adem Aydin
- Department of Orthopedics and Traumatology, Izmit Seka State Hospital, Kocaeli, Turkey.
| | | | | | | | | | | | | |
Collapse
|
24
|
Atmaca H, Özkan A, Mutlu I, Celik T, Ugur L, Kisioglu Y. The effect of proximal tibial corrective osteotomy on menisci, tibia and tarsal bones: a finite element model study of tibia vara. Int J Med Robot 2013; 10:93-7. [PMID: 23983147 DOI: 10.1002/rcs.1528] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 05/20/2013] [Revised: 07/13/2013] [Accepted: 07/30/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Proximal tibial open wedge osteotomy (PTO) is a corrective operation used in the surgery of lower extremities and is applied to patients with varus deformities for sufficient correction. The aim of the study was to evaluate whether the PTO can achieve decreased stress-bearing on the tibia and tarsal bones in addition to correcting the mechanical axis of the lower limb in patients with tibia vara. METHODS Three-dimensional (3D) solid modelling of the lower extremity was carried out using computed tomography (CT) and magnetic resonance (MR)-containing images of all of the bony elements and non-bony structures. PTO was applied to the obtained deformed model in the computer environment and the correction was carried out. RESULTS Stress distributions in menisci, tibia and tarsal bones were calculated. With respect to loading on the tarsal bones, the maximum equivalent stresses on all bones decreased except for the navicula in the PTO-simulated model in the current study. CONCLUSION These results clearly indicate that PTO can achieve decreased stresses on the tarsal bones in patients with tibia vara.
Collapse
Affiliation(s)
- Halil Atmaca
- Department of Orthopaedics and Traumatology, Akdeniz University, Antalya, Turkey
| | | | | | | | | | | |
Collapse
|
25
|
Cakar B, Bulut G, Kisim A, Bozkurt E, Atmaca H, Uzunoglu S, Uslu R, Karaca B. AT-101 (-/- Gossypol) in Combination with Trastuzumab Triggers Apoptosis Through Inhibiting BCL-2, BCL-XL AND MCL-1 Protein Levels in Human HER2-Positive Breast Cancer Cells. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt086.1] [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: 11/12/2022] Open
|
26
|
Robichon C, Annereau JP, Gomes B, Pillon A, de Vries L, Cussac D, Meyer N, Lamant L, Kruczynski A, Guilbaud N, Kluza J, Jendoubi M, Corazao-Rozas P, Andre F, Jonneaux A, Guerreschi P, Formstecher P, Mortier L, Marchetti PHI, Bozkurt E, Atmaca H, Uzunoglu S, Uslu R, Karaca B, Erenpreisa J, Jackson TR, Huna A, Salmina K, Innashkina I, Jankevics E, Townsend PA, Cragg MS, Atmaca H, Bozkurt E, Uzunoglu S, Uslu R, Karaca B, Ramos SP, Bin M, Neto MDS, Curvello R, de Souza ACS, Nunes M, Weiswald LB, Vrignaud P, Vacher S, Turlotte E, Richon S, Roman-Roman S, Bieche I, Dangles-Marie V, Morais-Santos F, Pinheiro C, Vieira A, Schmitt F, Paredes J, Baltazar F, Zhang T, Lee YW, Rui YF, Cheng TY, Li G, Sreelatha KH, Reshma RS, Veena S, Rakesh SN, Thara S, Jem P, Priya S, Veena S, Sreelatha KH, Reshma RS, Rakesh SN, Priya S. Poster session 5. Translational research. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt047] [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: 11/14/2022] Open
|
27
|
Bozkurt E, Atmaca H, Uzunoglu S, Uslu R, Karaca B. P53 Modulates Trabectedin Mediated Cytotoxicity in Glioblastoma Multiforme Cells (U-87MG and T98G). Ann Oncol 2013. [DOI: 10.1093/annonc/mdt047.3] [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: 11/12/2022] Open
|
28
|
Atmaca H, Memisoglu K. The relation between botulinum toxin-A and fracture healing. comment on Hao et al.: short-term muscle atrophy caused by botulinum toxin-A local injection impairs fracture healing in the rat femur. J Orthop Res 2013; 31:510. [PMID: 23341261 DOI: 10.1002/jor.22232] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
29
|
Atmaca H, Memişoğlu K. Comments on Song et al.: new surgical algorithm for femoral head split fractures with anatomical study. J Orthop Sci 2013; 18:359-60. [PMID: 23269524 DOI: 10.1007/s00776-012-0344-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 11/29/2012] [Indexed: 11/28/2022]
|
30
|
Atmaca H, Bozkurt E, Uzunoglu S, Uslu R, Karaca B. A Diverse Induction of Apoptosis by Trabectedin in MCF-7 (HER2-/ER+) and MDA-MB-453 (HER2 + /ER-) Breast Cancer Cells. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt047.5] [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: 11/13/2022] Open
|
31
|
Kesemenli CC, Memisoglu K, Atmaca H. A minimally invasive technique for the reduction of calcaneal fractures using the Endobutton®. J Foot Ankle Surg 2013; 52:215-20. [PMID: 23312404 DOI: 10.1053/j.jfas.2012.11.007] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Indexed: 02/03/2023]
Abstract
Calcaneal fractures are very common injuries, and closed reduction-percutaneous pinning, open reduction-internal fixation, and primary arthrodesis are the procedures used in the surgical treatment of these injuries. The aim of surgical treatment is to restore the normal biomechanics of the Achilles tendon and rearfoot by anatomic reduction of the articular surfaces. Minimization of the soft tissue complications commonly associated with the open treatment of calcaneal fractures can be achieved using indirect closed reduction and Kirschner wire or screw-assisted minimally invasive percutaneous osteosynthesis methods. In the present report, we describe a technique for the treatment of calcaneal fractures associated with soft tissues that are at risk of complications and present the cases of 3 patients treated with indirect, minimally invasive reduction of comminuted calcaneal fractures with the Endobutton(®) fixation device. From our experience with this method, we believe it will be useful in cases of acute calcaneal fracture with pronounced soft tissue injury localized to the hindfoot.
Collapse
Affiliation(s)
- Cumhur Cevdet Kesemenli
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | | | | |
Collapse
|
32
|
Ozkan A, Atmaca H, Mutlu I, Celik T, Uğur L, Kişioğlu Y. Stress distribution comparisons of foot bones in patient with tibia vara: a finite element study. Acta Bioeng Biomech 2013; 15:67-72. [PMID: 24479742] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Blount's disease, or tibia vara, is the most common cause of pathologic genu varum in children and adolescents. Changes in the loading of knee structures such as tibial articular cartilage, menisci and subcondral bone are well documented in case of genu varum. But the mechanical effects of this condition on foot bones are still questionable. In this study, the authors hypothesized that stress distributions on foot bones might increase in patients with tibia vara when compared with patients who had normal lower extremity mechanical axis. Three-dimensional (3D) finite element analyses of human lower limb were used to investigate and compare the loading on foot bones in normal population and patient with tibia vara. The segmentation software, MIMICS was used to generate the 3D images of the bony structures of normal and varus malalignment lower extremity. Except the spaces between the adjacent surface of the phalanges fused, metatarsals, cuneiforms, cuboid, navicular, talus and calcaneus bones were independently developed to form foot and ankle complex. Also femur, tibia and fibula were modeled utilizing mechanical axis. ANSYS version 14 was used for mechanical tests and maximum equivalent stresses (MES) were examined. As a result of the loading conditions, in varus model MES on talus, calcaneus and cuboid were found higher than in normal model. And stress distributions changed through laterally on middle and fore foot in varus deformity model.
Collapse
Affiliation(s)
- Arif Ozkan
- Faculty of Engineering, Department of Biomedical Engineering, Duzce University, Konuralp Campus Duzce, Turkey
| | - Halil Atmaca
- Department of Orthopaedics and Traumatology, Akdeniz University, Antalya, Turkey
| | - Ibrahim Mutlu
- Department of Mechanical Education, Technical Education Faculty Kocaeli University, Umuttepe Campus, Kocaeli, Turkey
| | - Talip Celik
- Department of Mechanical Education, Technical Education Faculty Kocaeli University, Umuttepe Campus, Kocaeli, Turkey
| | - Levent Uğur
- Department of Automotive, Vocational High School Amasya University, Amasya, Turkey
| | - Yasin Kişioğlu
- Department of Mechanical Education, Technical Education Faculty Kocaeli University, Umuttepe Campus, Kocaeli, Turkey
| |
Collapse
|
33
|
Aydin A, Memisoglu K, Cengiz A, Atmaca H, Muezzinoglu B, Muezzinoglu US. Effects of botulinum toxin A on fracture healing in rats: an experimental study. J Orthop Sci 2012; 17:796-801. [PMID: 22825767 DOI: 10.1007/s00776-012-0269-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 07/03/2012] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Fracture healing is a complex process influenced by intrinsic and extrinsic factors. The aim of the present study was to evaluate the effects of botulinum toxin (BTX) A on fracture healing. MATERIALS AND METHODS Following the induction of bilateral standard closed femoral fractures and relative fixation in 18 Wistar albino rats, 8 IU of BTX A were injected into the right femoral region. After 28 days, all of the rats were sacrificed, the diameter of the callus was measured, and fracture healing was assessed by biomechanical and histopathologic evaluation. RESULTS While an increase in biomechanical and histopathologic healing was noted on the side injected with BTX A, a decrease in callus diameter was observed. CONCLUSION Botulinum toxin A administration increases the healing power in a relatively fixated fracture and decreases the callus diameter, just as if rigid fixation had been performed. The beneficial effect of BTX A on fracture healing might be associated with increased fixation rigidity.
Collapse
Affiliation(s)
- Adem Aydin
- Department of Orthopaedics and Traumatology, Izmit Seka State Hospital, Kocaeli, Turkey
| | | | | | | | | | | |
Collapse
|
34
|
Atmaca H, Memişoğlu K, Yumuk Z, Aydın A. A case of bilateral suppurative arthritis of hip joint with concomitant pyomyositis. Balkan Med J 2012; 29:343-4. [PMID: 25207030 DOI: 10.5152/balkanmedj.2012.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Halil Atmaca
- Department of Orthopaedics and Traumatology, Midyat State Hospital, Mardin, Turkey
| | - Kaya Memişoğlu
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Zeki Yumuk
- Department of Microbiology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Adem Aydın
- Department of Orthopaedics and Traumatology, İzmit Seka State Hospital, Kocaeli, Turkey
| |
Collapse
|
35
|
Aydın A, Atmaca H, Müezzinoğlu ÜS. Bilateral congenital vertical talus with severe lower extremity external rotational deformity: treated by reverse Ponseti technique. Foot (Edinb) 2012; 22:252-4. [PMID: 22560259 DOI: 10.1016/j.foot.2012.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 02/28/2012] [Accepted: 04/13/2012] [Indexed: 02/06/2023]
Abstract
Congenital vertical talus, also known as congenital convex pes valgus, is a complex, rare, foot deformity that is resistant to conservative treatment. We report a case of bilateral congenital vertical talus with severe lower extremity external rotational deformity that was treated by means of a method of serial manipulations and casts. Although the initial manipulation and casting before surgical treatment is the current concept of idiopathic congenital vertical talus, a good result can be obtained by a well-organized conservative treatment with the help of patient compliance, so routine surgical release of the Achilles tendon may not be necessary in all cases.
Collapse
Affiliation(s)
- Adem Aydın
- Izmit Seka State Hospital, Department of Orthopaedics and Traumatology, Kocaeli, Turkey
| | | | | |
Collapse
|
36
|
Karaca Z, Tanriverdi F, Atmaca H, Unluhizarci K, Kelestimur F. Posterior pituitary functions are not altered after growth hormone replacement therapy in hypopituitarism due to Sheehan's syndrome. Growth Horm IGF Res 2012; 22:146-149. [PMID: 22627149 DOI: 10.1016/j.ghir.2012.04.008] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 04/19/2012] [Accepted: 04/29/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate the effects of growth hormone (GH) replacement on posterior pituitary functions of GH-deficient Sheehan's syndrome (SS) patients. DESIGN Ten patients with SS and 14 healthy control women were included in this prospective study. All patients were given appropriate hormone replacement therapy other than GH, according to present hormone deficiencies. Patients were euthyroid and eucortisolemic at the time of baseline evaluation. Patients and the control group were evaluated with water-deprivation and saline-infusion tests at baseline and the tests were repeated in patients with SS after 3 months of GH replacement therapy. RESULTS According to the water deprivation test, 3 patients had partial central DI at baseline. Urine osmolalities of the patients were slightly lower and plasma osmolalities were significantly higher than the control group at baseline, after water deprivation and following DDAVP injection and after hypertonic saline infusion. The osmotic threshold of serum for thirst perception was found to be significantly higher in SS patients than the control group, GH replacement therapy did not influence the results of water deprivation and saline infusion tests in SS patients. CONCLUSION Patients with SS have subtle abnormalities in posterior pituitary functions and the threshold for thirst perception is increased. However GH replacement therapy does not seem to reverse or adversely affect the mildly deteriorated posterior pituitary functions of SS patients.
Collapse
Affiliation(s)
- Z Karaca
- Erciyes University Medical School Department of Endocrinology, Kayseri, Turkey
| | | | | | | | | |
Collapse
|
37
|
Atmaca H, Memişoğlu K, Baran T. Neglected femoral neck fracture in patient with seizure: a case of a delayed fixation of type 1A fracture in 11-month-old infant. Eur J Orthop Surg Traumatol 2012; 22 Suppl 1:173-6. [PMID: 26662772 DOI: 10.1007/s00590-012-1009-9] [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] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Accepted: 05/02/2012] [Indexed: 11/29/2022]
Abstract
Fractures of the hip are rare injuries in children, accounting for less than 1 % of all pediatric fractures. Compared with other pediatric skeletal injuries, hip fractures are associated with high complication rates and poor outcomes, most commonly osteonecrosis, as well as non-union and malunion. Although significant trauma is the most common reason of the separation of upper femoral epiphysis, furthermore some cases were reported after seizures. To our knowledge, there is no previous publication in the literature that reports the results of delayed reduction and fixation of transepiphyseal separation of the proximal femoral epiphysis. We report a case of delayed open reduction and internal fixation of Delbet type 1A femoral neck fracture following seizures in an 11-month-old male child.
Collapse
Affiliation(s)
- Halil Atmaca
- Department of Orthopaedics and Traumatology, Midyat State Hospital, 47500, Mardin, Turkey.
| | - Kaya Memişoğlu
- Department of Orthopaedics and Traumatology, School of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Tuncay Baran
- Department of Orthopaedics and Traumatology, School of Medicine, Kocaeli University, Kocaeli, Turkey
| |
Collapse
|
38
|
Affiliation(s)
- S. Dogan
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - Z. Aktop
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - M. Aydin
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - T. Karabag
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - M. Sayin
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - H. Bilici
- Department of Cardiology, Faculty of Medicine, Zonguldak Karaelmas University
| | - H. Atmaca
- Department of Endocrinology and Metabolism, Faculty of Medicine, Zonguldak Karaelmas University
| |
Collapse
|
39
|
Karaca B, Muslu U, Surmeli Z, Cakar B, Atmaca H, Asli K, Sezgin C, Uzunoglu S, Karabulut B, Uslu R. 98P Octreotide in Combination with Docetaxel Triggers Apoptosis by Inducing Sstr2 and Sstr5 Levels in Human Breast Cancer Cells, Mcf-7 and Mda-Mb-231. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(19)65742-x] [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] Open
|
40
|
Karaca B, Atmaca H, Asli K, Bozkurt E, Cakar B, Surmeli Z, Gursoy P, Karabulut B, Uzunoglu S, Sezgin C. 94P Comparison of A Novel, Label-Free, and Real-Time cell Based System (Xcelligence) With a Conventional Viability Assay (Xtt) to Determine the Anti-Proliferative Effect of At-101 in Human Breast Cancer Cells. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(19)65737-6] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
41
|
Surmeli Z, Gursoy P, Cakar B, Asli K, Atmaca H, Sezgin C, Karabulut B, Uslu R, Karaca B. 99P Zoledronic Acid in Combination with Serine/Threonine Phosphatase Inhibitors Induces Cytotoxicity and Apoptosis in Human Breast Cancer Cells via Decreasing the Activities of Pp1 and Pp2A. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(19)65743-1] [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: 10/25/2022] Open
|
42
|
Mutlu İ, Ozkan A, Atmaca H, Çelik T, Cirpici MY, Kisioglu Y. Comparison of 3D and 2D models editing process in pre-osteotomy planning. J Biomech 2011. [DOI: 10.1016/j.jbiomech.2011.02.062] [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: 11/29/2022]
|
43
|
Mora B, Base E, Schmid W, Andreas M, Weber U, Junreitmaier M, Foerster F, Hiesmayr M, Tschernich HD, Guldbrand D, Goetzsche O, Eika B, Fumagalli S, Francini S, Gabbai D, Pedri S, Casalone Rinaldi M, Makhanian Y, Sollami R, Tarantini F, Marchionni N, Azcarate PM, Castano S, Rodriguez-Manero M, Arraiza M, Levy B, Barba J, Rabago G, Bastarrika G, Rus H, Radoi M, Ciurea C, Boda D, Erdei T, Denes M, Mihalcz A, Kardos A, Foldesi CS, Temesvari A, Lengyel M, Cameli M, Lisi M, Righini F, Ballo P, Henein M, Mondillo S, Nistri S, Galderisi M, Ballo PC, Pagliani L, Olivotto I, Santoro A, Papesso B, Innelli P, Cecchi F, Mondillo S, Hristova K, Katova TZ, Kostova V, Simova Y, Nesheva N, Ivanovic B, Tadic MT, Simic DS, Rao CM, Aguglia D, Casciola G, Imbesi C, Marvelli A, Sgro M, Benedetto D, Tripepi G, Zoccali C, Benedetto FA, Mantziari L, Kamperidis V, Damvopoulou E, Ventoulis I, Giannakoulas G, Paraskevaidis S, Vassilikos V, Karvounis H, Styliadis IH, Sonder TK, Loegstrup BB, Lambrechtsen J, Van Bortel LM, Segers P, Egstrup K, Tho A, Moceri P, Bertora D, Gibelin P, Cho EJ, Choi KY, Kim BJ, Kim DB, Jang SW, Park CS, Jung HO, Jeon HK, Youn HJ, Kim JH, Donal E, Coquerel N, Bodi S, Thebault C, Kervio G, Carre F, Daly MJ, Fairley SL, Doherty R, Ashfield K, Kirkpatrick R, Smith B, Buchanan J, Hill L, Dixon LJ, Rosca M, O' Connor K, Magne J, Romano G, Calin A, Popescu BA, Beladan CC, Pierard L, Ginghina C, Lancellotti P, Bochenek T, Wita K, Tabor Z, Grabka M, Elzbieciak M, Trusz-Gluza M, Moreau O, Thebault C, Kervio G, Leclercq C, Donal E, Sahlen A, Shahgaldi K, Aminoff A, Aagaard P, Manouras A, Winter R, Ehrenborg E, Braunschweig F, Bedetti G, Gargani L, Pizzi C, Sicari R, Picano E, Ballo P, Nistri S, Innelli P, Galderisi M, Mondillo S, Zhang J, Zhang HB, Duan YY, Chen LL, Li J, Liu LW, Zhu T, Li HL, Su HL, Zhou XD, Ruiz Ortiz M, Mesa Rubio D, Delgado Ortega M, Romo Penas E, Toledano Degado F, Leon Del Pino C, Lopez Aguilera J, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Suarez De Lezo J, Abergel E, Simon M, Dehant P, Bogino E, Jimenez M, Verdier JC, Chauvel C, Albertsen AE, Nielsen JC, Mortensen PT, Egeblad H, Nasr GM, Tawfik S, Omar A, Olofsson M, Boman K, Sonder TK, Loegstrup BB, Lambrechtsen J, Segers P, Van Bortel LM, Egstrup K, Rezzoug N, Vaes B, Degryse J, Vanoverschelde JL, Pasquet AA, Poggio D, Bonadies M, Pacher V, Mazzetti S, Grillo M, D'elia E, Khouri T, Specchia G, Mornos C, Rusinaru D, Cozma D, Ionac A, Petrescu L, Rotzak R, Rosenman Y, Patterson RD, Ratnatheepan S, Bogle RG, Goebel B, Gjesdal O, Kottke D, Otto S, Jung C, Edvardsen T, Figulla HR, Poerner TC, Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Itou N, Ono T, Yamamoto M, Osaki T, Tsuchida T, Sugi K, Wolber T, Haegeli L, Huerlimann D, Brunckhorst C, Duru F, Wu ZM, Shu XH, Dong LL, Fan B, Ge JB, Greutmann M, Tobler D, Biaggi P, Mah M, Crean A, Oechslin EN, Silversides CK, Ivanovic B, Tadic MT, Simic DS, Giusca S, Jurcut R, Ghiorghiu I, Coman IM, Popescu BA, Amzulescu M, Ionescu R, Delcroix M, Voigt JU, Ginghina C, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Maceira Gonzalez AM, Cosin-Sales J, Dalli E, Igual B, Monmeneu JV, Lopez-Lereu P, Estornell J, Ruvira J, Sotillo J, Stevanovic A, Toncev A, Dimkovic S, Dekleva M, Paunovic N, Toncev D, Sekularac N, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Pinedo Gago M, Amat Santos I, Revilla Orodea A, Lopez Diaz J, Arnold R, De La Fuente Galan L, Recio Platero A, Gomez Salvador I, Puerto Sanz A, San Roman Calvar JA, Yotti R, Bermejo J, Mombiela T, Benito Y, Sanchez PL, Solis J, Prieto R, Fernandez-Aviles F, Zilberszac R, Gabriel H, Graf S, Mundigler G, Maurer G, Rosenhek R, Zito C, Salvia J, Longordo C, Donato D, Alati E, Miceli M, Pardeo A, Arcidiaco S, Oreto G, Carerj S, Kamperidis V, Hadjimiltiades S, Sianos G, Anastasiadis K, Grosomanidis V, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Yousry M, Rickenlund A, Petrini J, Gustafsson T, Liska J, Hamsten A, Eriksson P, Franco-Cereceda A, Eriksson MJ, Caidahl K, Mizia-Stec K, Pysz P, Jasinski M, Drzewiecka-Gerber A, Krejca M, Bochenek A, Wos S, Gasior Z, Trusz-Gluza M, Tendera M, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Niki K, Sugawara M, Takamisawa I, Watanabe H, Sumiyoshi T, Hosoda S, Ida T, Takanashi S, Olsen NT, Sogaard P, Jons C, Mogelvang R, Larsson HBW, Goetze JP, Nielsen OW, Fritz-Hansen T, Sayar N, Orhan AL, Erer HB, Eren M, Atmaca H, Yilmaz HY, Cakmak N, Altay S, Terzi S, Yesilcimen K, Garcia Orta R, Moreno E, Lopez M, Uribe I, Vidal M, Ruiz-Lopez MF, Gonzalez-Molina M, Oyonarte JM, Lopez S, Azpitarte J, Szymanski C, Levine RA, Zheng H, Handschumacher MD, Tawakol A, Hung J, Le Ven F, Etienne Y, Jobic Y, Frachon I, Castellant P, Fatemi M, Blanc JJ, Rusinaru D, Tribouilloy C, Grigioni F, Avierinos JF, Barbieri A, Buiciuc O, Enriquez-Sarano M, Said K, Farag AK, El-Ramly M, Rizk H, Iorio A, Pinamonti B, Bobbo M, Merlo M, Massa L, Faganello G, Di Lenarda A, Sinagra G, Margato R, Ribeiro H, Ferreira C, Matias A, Fontes P, Moreira JI, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Crudo V, Iannaccone A, Milazzo V, Veglio F, Maroz-Vadalazhskaya N, Ostrovskiy I, Zito C, Imbalzano E, Saitta A, Oreto G, Cusma-Piccione M, Di Bella G, Nava R, Ferro M, Falanga G, Carerj S, Frigy A, Buzogany J, Szabados CS, Dan L, Carasca E, Ikonomidis I, Lekakis J, Tzortzis S, Kremastinos DT, Papadopoulos C, Paraskevaidis I, Triantafyllidi H, Trivilou P, Venetsanou K, Anastasiou-Nana M, Wierzbowska-Drabik K, Kurpesa M, Trzos E, Rechcinski T, Mozdzan M, Kasprzak JD, Kosmala W, Kotwica T, Przewlocka-Kosmala M, Mysiak A, Skultetyova D, Filipova S, Chnupa P, Mantziari L, Pechlivanidis G, Giannakoulas G, Dimitroula H, Karvounis H, Styliadis IH, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Iannaccone A, Crudo V, Milazzo V, Veglio F, Tsai WC, Liu YW, Lin CC, Huang YY, Tsai LM, Park SM, Kim YH, Shin SM, Shim WJ, Gonzalez Mansilla A, Torres Macho J, Sanchez Sanchez V, Diez P, Delgado J, Borruel S, Saenz De La Calzada C, Pyxaras S, Valentincic M, Barbati G, Lo Giudice F, Perkan A, Magnani S, Merlo M, Pinamonti B, Sinagra G, Palecek T, Ambroz D, Jansa P, Lindner J, Vitovec M, Polacek P, Jiratova K, Linhart A, Baskurt M, Dogan GM, Abaci O, Kaya A, Kucukoglu S, Duszanska A, Kukulski T, Skoczylas I, Majsnerowska A, Nowowiejska-Wiewiora A, Streb W, Szulik M, Polonski L, Kalarus Z, Yerly PO, Prella M, Joly A, Nicod L, Aubert JD, Aebischer N, Dores H, Leal S, Rosario I, Correia MJ, Monge J, Grilo AM, Arroja I, Fonseca C, Aleixo A, Silva A, Perez-David E, Sanchez-Alegre M, Yotti R, Gomez Anta I, De La Torre J, Alarcon J, Garcia Robles JA, Lafuente J, Bermejo J, Fernandez-Aviles F, Garcia Alonso CJ, Vallejo Camazon N, Gonzalez Guardia A, Nunez R, Bosch Carabante C, Mateu L, Gual Capllonch F, Ferrer Sistach E, Lopez Ayerbe J, Bayes Genis A, Tomaszewski A, Kutarski A, Tomaszewski M, Bramos D, Kalantaridou A, Takos D, Skaltsiotis E, Trika C, Tsirikos N, Pamboukas C, Kottis G, Toumanidis S, Aggeli C, Felekos I, Roussakis G, Kazazaki C, Lampropoulos K, Lagoudakou S, Stergiou C, Pitsavos C, Stefanadis C, Kihara C, Murata K, Wada Y, Tanaka T, Uchida K, Okuda S, Susa T, Matsuzaki M, Shahgaldi K, Manouras A, Abrahamsson A, Gudmundsson P, Brodin L, Winter R, Knebel F, Schattke S, Sanad W, Schimke I, Schroeckh S, Brechtel L, Lock J, Makauskiene R, Baumann G, Borges AC, Moelmen-Hansen HE, Wisloff U, Aamot IL, Stoylen A, Ingul CB, Estensen ME, Beitnes JO, Grindheim G, Henriksen T, Aaberge L, Smiseth OA, Gullestad L, Aakhus S, Gargani L, Agoston G, Moggi Pignone A, Capati E, Badano L, Moreo A, Bombardieri S, Varga A, Sicari R, Picano E, Carrideo M, Faricelli S, Corazzini A, Ippedico R, Ruggieri B, Di Blasio A, D'angelo E, Di Baldassarre A, Ripari P, Gallina S, Kentrschynskyj A, Rickenlund A, Caidahl K, Hylander B, Jacobson S, Pagels A, Eriksson MJ, Dumitrescu SI, Tintoiu I, Greere V, Cristian G, Chiriac L, Pinte F, Droc I, Neagoe G, Stanciu S, Voicu VA, Kuch-Wocial A, Pruszczyk P, Szmigielski CA, Szulc M, Styczynski G, Sinski M, Kaczynska A, Ryabikov A, Malyutina S, Halcox J, Bobak M, Nikitin YU, Marmot M, Barbosa D, Kiss G, Orderud F, Amundsen B, Jasaityte R, Loeckx D, Claus P, Torp H, D'hooge J, Kuhl JT, Lonborg J, Fuchs A, Andersen M, Vejlstrup N, Engstrom T, Moller JE, Kofoed KF, Smith LA, Bhan A, Paul M, Monaghan MJ, Zaborska B, Stec S, Sikora-Frac M, Krynski T, Kulakowski P, Pushparajah K, Dashwood D, Barlow A, Nugent K, Miller O, Simpson J, Valeur N, Ersboll MK, Kjaergaard J, Greibe R, Risum N, Hassager C, Sogaard P, Kober L, Sahlen A, Manouras A, Shahgaldi K, Winter R, Brodin L, Popovic D, Nedeljkovic I, Petrovic M, Vujisic-Tesic B, Arandjelovic A, Stojiljkovic S, Stojiljkovic S, Jakovljevic B, Damjanovic S, Ostojic M, Agrios IA, Bramos DB, Skaltsiotis HS, Takos DT, Kaladaridis A, Vasiladiotis NV, Kottis GK, Antoniou AA, Pamboucas CP, Toumanidis STT, Locorotondo G, Porto I, Paraggio L, Fedele E, Barchetta S, De Caterina AR, Rebuzzi AG, Crea F, Galiuto L, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Stefanczyk L, Rotkiewicz A, Shim A, Kasprzak JD, Vainer J, Habets J, Lousberg A, Pont De C, Waltenberger J, Farouk H, Heshmat H, Adel A, El Chilali K, Baghdady Y, Sorour K, Gustafsson U, Larsson M, Bjallmark A, Lindqvist P, A'roch R, Haney M, Waldenstrom A, Mladenovic Z, Tavciovski D, Mijailovic Z, Djordjevic - Dikic A, Obradovic S, Matunovic R, Jovic Z, Djuric P, Torp H, Aase S, Dalen H, Sarkola T, Redington AN, Keeley F, Bradley T, Jaeggi E, Sahlen H, Winter R, Brodin L, Sahlen A, Olsen NT, Risum N, Jons C, Mogelvang R, Valeur N, Fritz-Hansen T, Sogaard P. Poster session IV * Friday 10 December 2010, 14:00-18:00. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq146] [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: 11/12/2022]
|
44
|
Tosun B, Atmaca H, Gok U. Operative treatment of hip fractures in patients receiving hemodialysis. Musculoskelet Surg 2010; 94:71-75. [PMID: 20882378 DOI: 10.1007/s12306-010-0080-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [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: 12/29/2009] [Accepted: 09/15/2010] [Indexed: 05/29/2023]
Abstract
Fifteen hips in 13 patients with hip fracture were treated in patients receiving hemodialysis for chronic renal failure. There were four intertrochanteric and 11 femoral neck fractures. 10 of the 11 femoral neck fractures and one of the four intertrochanteric fractures were treated with cemented bipolar hemiarthroplasty. Two intertrochanteric fractures fixed with sliding compression screws. External fixation was used for stabilization in two patients who had femoral neck and intertrochanteric fractures. Two intertrochanteric fractures that were treated with sliding hip screw showed radiological union postoperatively at the 6th month. Of the 11 hemiarthroplasty, four hips developed aseptic loosening (36%). According to Harris hip score grading system, three (37.5%) poor, two (25%) fair, two (25%) good and one (12.5%) case had excellent outcome in the hemiarthroplasty group. The survival of dialysis patients with a hip fracture is markedly reduced. Initial treatment of hemiarthroplasty allows early mobilization and prevents revision surgery.
Collapse
Affiliation(s)
- Bilgehan Tosun
- School of Medicine, Department of Orthopaedics and Traumatology, Kocaeli University, Umuttepe Merkez Kampüsü, Umuttepe, Kocaeli, Turkey.
| | | | | |
Collapse
|
45
|
Akagunduz O, Karaca B, Atmaca H, Uzunoglu S, Karabulut B, Sanli UA, Haydaroglu A, Uslu R. Radiosensitization of hormone-refractory prostate cancer cells by gossypol treatment. J BUON 2010; 15:763-767. [PMID: 21229643] [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: 05/30/2023]
Abstract
PURPOSE many drugs have been tested to increase the sensitivity of prostate cancer cells to radiotherapy. Gossypol, a natural polyphenolic compound extracted from the cotton plant, is one of the agents the efficacy of which has been investigated in the treatment of prostate cancer for this purpose. The main aim of this study was to investigate the best gossypol application with irradiation, when gossypol was applied either sequentially (24 h before and after irradiation) or concurrently in PC-3 hormone-refractory and radioresistant prostate cancer cells. METHODS The XTT viability assay was used to evaluate the cytotoxicity of different concentrations of gossypol in PC- 3 cells. Irradiation was applied to PC-3 cells via 6 MV photon linear accelerator and delivered 24 h before, 24 h after radiation or at the same time with gossypol administration. RESULTS gossypol caused radiosensitization of PC-3 cells that are known to be radioresistant, with high Bcl-2 levels. Among different applications of gossypol and irradiation (before, after and concurrent) in prostate cancer cells, the best results were observed by the application of gossypol 24 h before irradiation. CONCLUSION our study suggests that gossypol represents a promising novel anticancer treatment for radiosensitization of human hormone-refractory prostate cancer cells.
Collapse
Affiliation(s)
- O Akagunduz
- Division of Radiation Oncology, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Kucukzeybek Y, Gorumlu G, Cengiz E, Karabulut B, Sezgin C, Atmaca H, Sanli UA, Uzunoglu S, Uslu R. Apoptosis-Mediated Cytotoxic Effects of Ibandronic Acid on Hormone- and Drug-Refractory Prostate Cancer Cells and Human Breast Cancer Cells. J Int Med Res 2010; 38:1663-72. [DOI: 10.1177/147323001003800511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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] Open
Abstract
Over 80% of patients with advanced breast and prostate cancer ultimately develop bone metastases. Ibandronic acid has proven efficacy for treatment of bone metastasis secondary to breast cancer. This study was designed to investigate the cytotoxic and apoptotic effects of ibandronic acid on hormone- and drug-refractory prostate carcinoma DU-145 and human breast cancer MCF-7 cell lines. Cytotoxicity was evaluated using an XTT cell proliferation kit, and apoptosis was assessed by enzyme-linked immuno sorbent assay (histone-DNA fragmentation) and measurement of caspase 3/7 activity. With increasing concentrations of ibandronic acid there was a dose- and time-dependent decrease in cell numbers. MCF-7 cells were more resistant than DU-145 cells (half maximal inhibitory concentrations of 122 and 90 μM, respectively). Ibandronic acid induced apoptosis in both cell lines. The study showed an apoptosis-mediated cytotoxic effect for ibandronic acid (in addition to the already known osteoclast inhibiting effect) in breast cancer patients with bone metastases; which was also observed in prostate cancer cells. Further clinical studies involving breast and prostate cancer patients with bone metastases are warranted to confirm these findings.
Collapse
Affiliation(s)
- Y Kucukzeybek
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | - G Gorumlu
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | - E Cengiz
- Division of Medical Oncology, Trabzon Numune Training and Research Hospital, Trabzon, Turkey
| | - B Karabulut
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | - C Sezgin
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | - H Atmaca
- Molecular Biology Unit, Department of Biology, Faculty of Science and Arts, Celal Bayar University, Muradiye, Manisa, Turkey
| | - UA Sanli
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | - S Uzunoglu
- Molecular Biology Unit, Department of Biology, Faculty of Science and Arts, Celal Bayar University, Muradiye, Manisa, Turkey
| | - R Uslu
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| |
Collapse
|
47
|
Karaca Z, Tanriverdi F, Atmaca H, Gokce C, Elbuken G, Selcuklu A, Unluhizarci K, Kelestimur F. Can basal cortisol measurement be an alternative to the insulin tolerance test in the assessment of the hypothalamic-pituitary-adrenal axis before and after pituitary surgery? Eur J Endocrinol 2010; 163:377-82. [PMID: 20530552 DOI: 10.1530/eje-10-0229] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [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] [Indexed: 11/08/2022]
Abstract
BACKGROUND The aims of this study were to evaluate the validity of preoperative basal serum cortisol levels measured in predicting preoperative adrenal insufficiency and also the validity of basal serum cortisol levels and early postoperative insulin tolerance test (ITT) in predicting postoperative adrenal insufficiency. METHODS The study was prospectively designed and included 64 patients who underwent pituitary surgery for conditions other than Cushing's disease. An ITT was performed preoperatively, on the 6th postoperative day and at the 1st postoperative month. Basal serum cortisol levels were measured on the 2nd, 3rd, 4th, 5th, and 6th postoperative days. RESULTS Patients with a preoperative basal cortisol level of <165 nmol/l (6 microg/dl) showed insufficient cortisol response and those with levels higher than 500 nmol/l (18 microg/dl) had sufficient cortisol response to the preoperative ITT. The positive predictive value of the ITT performed on the 6th postoperative day was 69.7%, and the negative predictive value in predicting adrenal insufficiency at the 1st postoperative month was 58%. Patients were considered to have an insufficient cortisol response to ITT at the 1st postoperative month if their basal cortisol levels were <193 nmol/l (7 microg/dl) or 220 nmol/l (8 microg/dl) or 193 nmol/l (7 microg/dl) or 165 nmol/l (6 microg/dl) or 83 nmol/l (3 microg/dl) on the 2nd-6th postoperative days respectively. CONCLUSION Serum basal cortisol levels may be used as the first-line test in the assessment of the hypothalamic-pituitary-adrenal axis both preoperatively and postoperatively. Dynamic testing should be limited to the patients with indeterminate basal cortisol levels.
Collapse
Affiliation(s)
- Z Karaca
- Department of Endocrinology, Erciyes University Medical School, 38039 Kayseri, Turkey
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Memisoglu K, Cevdet Kesemenli C, Atmaca H. Does the technique of lateral cross-wiring (Dorgan's technique) reduce iatrogenic ulnar nerve injury? Int Orthop 2010; 35:375-8. [PMID: 20644929 DOI: 10.1007/s00264-010-1090-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 05/31/2010] [Accepted: 06/25/2010] [Indexed: 10/19/2022]
Abstract
In this study we compared the results of patients with displaced supracondylar humeral fractures who had been treated with all lateral cross-wire and medio-lateral cross-wire fixation techniques. Only the 139 patients who were able to attend the final examination were included in the assessment. The patients were allocated retrospectively into two groups according to the pin configuration used. Group 1 comprised 75 patients, 60 male and 15 female, with a mean age of 7.5 years (range, 1.5-14 years). After closed reduction, fixation was achieved with crossed K-wires placed from the lateral condyle and lateral humerus towards the medial epicondyle. Care was taken so that the end of the K-wire passing from the lateral humerus did not protrude excessively at the level of the medial epicondyle. Group 2 comprised 64 patients, 54 males and ten females, with a mean age of 7.8 years (range, 2-13 years). After closed reduction, two cross-wires passed-one from medial and one from lateral. In group 1 there was no postoperative iatrogenic nerve damage whereas in group 2 iatrogenic ulnar nerve damage developed in six (9%) patients. On statistical evaluation, a significant difference was seen between the two groups. According to Flynn's criteria, there was no statistically significant difference between the two groups. In conclusion, the lateral cross-wire fixation technique may be a good choice in the treatment of paediatric supracondylar humerus fractures as it reduces the possibility of ulnar nerve damage and achieves the same level of stabilisation as medio-lateral fixation.
Collapse
Affiliation(s)
- Kaya Memisoglu
- Department of Orthopaedics and Traumatology, Kocaeli University School of Medicine, Umuttepe Kampüsü, 41380, Kocaeli, Turkey.
| | | | | |
Collapse
|
49
|
Karaca SB, Muslu U, Cakar B, Kisim A, Atmaca H, Unuvar Purcu D, Uzunoglu S, Uslu R. Synergistic cytotoxic/apoptotic effects of AT-101, a phytochemical with BH3-mimetic property, in combination with paclitaxel in human breast cancer cells. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e21082] [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: 11/20/2022] Open
|
50
|
Karaca B, Atmaca H, Uzunoglu S, Karabulut B, Sanli UA, Uslu R. Enhancement of taxane-induced cytotoxicity and apoptosis by gossypol in human breast cancer cell line MCF-7. J BUON 2009; 14:479-485. [PMID: 19810142] [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: 05/28/2023]
Abstract
PURPOSE Gossypol is a natural polyphenolic compound extracted from cotton plant (Gossypium species) which has shown potent inhibitory effect on cell growth of many types of cancers. In this study, we aimed to evaluate the interaction of gossypol with some conventional drugs known to be effective in the treatment of breast cancer, like taxanes, doxorubicin, gemcitabine, cisplatin and vinorelbine, in MCF-7 breast cancer cells. MATERIALS AND METHODS The XTT viability assay was used to evaluate the cytotoxicity of various cytotoxic agents alone and in combination with gossypol in MCF-7 breast cancer cells. The combination effect analysis of Chou and Talalay was used to identify the most synergistic drug combinations. The possible synergistic effects of the combination of drugs on apoptosis were also evaluated by using two different apoptosis assays. RESULTS We identified strong synergistic cytotoxic and apoptotic activity of gossypol with taxanes among all other studied cytotoxic drugs. CONCLUSION This study provides proof that gossypol combined with taxanes may have potential as a novel future treatment for breast cancer.
Collapse
Affiliation(s)
- B Karaca
- Division of Medical Oncology, Tulay Aktas Oncology Hospital, School of Medicine, Ege University, Bornova, Izmir, Turkey
| | | | | | | | | | | |
Collapse
|