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Polat R, Yıldırım R, Ustyol A, Turan I, Erel Ö. The evaluation of thiol-disulfide homeostasis in children with Triple-A syndrome. Eur Rev Med Pharmacol Sci 2023; 27:1576-1581. [PMID: 36876713 DOI: 10.26355/eurrev_202302_31400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
OBJECTIVE Triple-A syndrome occurs due to the dysfunction of the ALADIN protein as a result of a mutation in the AAAS gene. ALADIN is involved in redox homeostasis in human adrenal cells and steroidogenesis. It has also been shown to have important roles in DNA repair and the protection of cells against oxidative stress. We planned to investigate serum thiol/disulfide homeostasis, which is a part of redox hemostasis in patients with Triple-A syndrome. PATIENTS AND METHODS The study included patients with the Triple-A syndrome (26 patients) and healthy children (26 patients). Thiol and disulfide levels of patients and healthy groups were compared. In addition, patients with the Triple-A syndrome were divided into 2 subgroups according to the mutation type, and their thiol and disulfide levels were compared. RESULTS Triple-A syndrome patients had increased native thiol (SH), total thiol (SH+SS) concentrations, and native thiol/total thiol (SH/SH+SS) ratios than healthy controls. However, Triple-A syndrome patients had lowered disulfide (SS), disulfide/native thiol (SS/SH), and disulfide/total thiol (SS/SH+SS) ratios than the controls. When the group with the p.R478* mutation and the group with other mutation were compared, disulfide level, disulfide/native thiol ratio, and disulfide/total thiol ratio were statistically higher in the group with the p.R478* mutation, while native thiol/total thiol ratio was found to be lower. However, no statistical difference was found between native thiol and total thiol levels. CONCLUSIONS This is the first study in the literature to evaluate thiol-disulfide homeostasis in patients with the Triple-A syndrome. Patients with Triple-A syndrome had an increased level of thiol compared with healthy controls. Comprehensive studies are needed to clarify these thiol levels, which are thought to be compensatory. Also, mutation type affects thiol-disulfide levels.
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Affiliation(s)
- R Polat
- Department of Pediatric Endocrinology, Sakarya Training and Research Hospital, Sakarya, Turkey.
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Ozacmak HS, Ozacmak VH, Turan I. Ethyl pyruvate prevents from chronic cerebral hypoperfusion via preserving cognitive function and decreasing oxidative stress, caspase 3 activation and IL-1β level. ACTA ACUST UNITED AC 2018; 119:469-475. [PMID: 30160153 DOI: 10.4149/bll_2018_086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND One of the important risk factors for dementia is chronic cerebral hypoperfusion (CCH) especially in patients with cerebrovascular disease. OBJECTIVES In the present study, using rat model of bilateral common carotid artery occlusion, the possible protective effects of ethyl pyruvate (EP) have been explored in terms of memory impairment, oxidative stress, and levels of caspase-3, Na-K ATPase, and IL- 1β. METHODS Rats were treated with EP (50 mg/kg, i.p) for 4 weeks. Cognitive function was evaluated by Morris Water Maze (MWM). Both levels of caspase-3 and Na-K ATPase in tissue, IL-1β in plasma were measured by ELISA method. Status of oxidative stress in brain was assessed by the measurements of the tissue malondialdehyde (MDA) and reduced glutathione (GSH) contents. RESULTS: Results showed that CCH caused a striking impairment of spatial working memory, accompanied with increased levels of MDA and IL-1β as well as caspase 3 level. The treatment with EP, however, significantly improved the memory impairment. Moreover, the treatment also provided beneficial effects on the disturbances of caspase 3, IL-1β and MDA. CONCLUSION This study strongly imply that the EP administration can alleviate the memory impairment observed due to CCH. The protection provided by EP may result from inhibition of inflammatory response, apoptotic processes and oxidative stress (Fig. 3, Ref. 58).
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Ersoz G, Tekin F, Bozkaya H, Parildar M, Turan I, Ozutemiz O, Teksein O. Magnetic compression anastomosis for post-traumatic disconnected bile duct. Acta Gastroenterol Belg 2016; 79:60-61. [PMID: 27295727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Turan I, Demir S, Misir S, Kilinc K, Mentese A, Aliyazicioglu Y, Deger O. Cytotoxic Effect of Turkish Propolis on Liver, Colon, Breast, Cervix and Prostate Cancer Cell Lines. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i5.5] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Affiliation(s)
- M U Kalayci
- General Surgery Clinics, Dr Sadi Konuk Training and Research Hospital.
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Hakimoglu S, Hanci V, Hakimoglu Y, Cicek S, Yurtlu S, Okyay RD, Ayoglu H, Can M, Mungan G, Dursun A, Turan I. The effects of nitrous oxide on vitamin B12 and homocysteine levels in methyltetrahydrofolate reductase gene mutation. BRATISL MED J 2013; 114:317-22. [PMID: 23731042 DOI: 10.4149/bll_2013_067] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND We aimed to investigate the effects of nitrous oxide on plasma total homocysteine and vitamin B12 levels in patients with or without methyltetrahydrofolate reductase (MTHRF) gene mutation. METHODS After obtaining the ethics committee approval and written informed consents of patients, 93 patients between 18-70 years of age scheduled for surgery anticipated to last 1-4 hours were enrolled in the study. Patients with contraindications for nitrous oxide use were excluded. Preoperatively, blood samples were obtained from all patients for the determination of MTHFR gene mutation. Anesthesia induction was achieved with 3 mg.kg-1 of propofol and 1 µg.kg-1 of fentanyl. Anesthesia maintenance was performed with sevoflurane and with a carrier gas composed of 40 % O2 and 60 % N2O. Venous blood samples were obtained after venous canulation, and 24 hours after extubation for the analysis of plasma total homocysteine, vitamin B12 levels. RESULTS Eighty-one patients were included in the study. Postoperative vitamin B12 levels were found to be significantly lower when compared with their preoperative levels (p<0.05). It was found that MTHRF gene polymorphism had no significant effect on postoperative plasma total homocysteine and serum vitamin B12 levels (p>0.05). Postoperative plasma total homocysteine levels were found to be significantly different between patients with operation times under and over 3 hours (p=0.028). CONCLUSIONS We conclude that MTHRF gene polymorphism had no significant effects on postoperative plasma total homocysteine levels. However, we found that homocysteine levels might rise in patients who received general anesthesia with nitrous oxide for longer than 3 hours (Tab. 7, Ref. 26).
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Affiliation(s)
- S Hakimoglu
- Department of Anesthesiology and Reanimation, Zonguldak Karaelmas University, School of Medicine Zongdulak, Turkey
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Aliyazicioglu Y, Demir S, Turan I, Cakiroglu TN, Akalin I, Deger O, Bedir A. Preventive and protective effects of Turkish propolis on H₂O₂-induced DNA damage in foreskin fibroblast cell lines. Acta Biol Hung 2011; 62:388-96. [PMID: 22119868 DOI: 10.1556/abiol.62.2011.4.5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of the present study was to evaluate the potential of Turkish propolis extracts if they prevent or protect foreskin fibroblast cells against hydrogen peroxide (H₂O₂)-induced oxidative DNA damage. Hydrogen peroxide (40 μM) was used as an inducer of oxidative DNA damage. The damage of DNA was evaluated by using the alkaline single cell gel electrophoresis (comet) assay. Turkish propolis extracts at concentrations of 25, 50, 75 and 100 μg/ml were prepared by ethanol. Anti-genotoxicity was assessed before, simultaneously, and after treatment of propolis extract (50 μg/ml) with H₂O₂. The results showed a significant decrease in H₂O₂-induced DNA damage in cultures treated with propolis extract. The antioxidant activity of phenolic components found in propolis may contribute to reduce the DNA damage induced by H₂O₂. Our findings confirmed the chemopreventive activity of propolis and showed that this effect may occur under different mechanisms.
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Affiliation(s)
- Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, 61080, Turkey.
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Affiliation(s)
- M Kara
- Gulhane Medical School, Division of Gastroenterology, Ankara, Turkey.
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Kantarcioglu M, Kilciler G, Turan I, Ercin CN, Karslioglu Y, Guvenc I, Polat Z, Bagci S. Solitary Peutz-Jeghers-type hamartomatous polyp as a cause of recurrent acute pancreatitis. Endoscopy 2009; 41 Suppl 2:E117-8. [PMID: 19544255 DOI: 10.1055/s-0029-1214666] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- M Kantarcioglu
- Department of Gastroenterology, Gulhane Military Medical Academy, School of Medicine, Ankara, Turkey.
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Töz H, Nart D, Turan I, Ersöz G, Seziş M, Aşçi G, Ozkahya M, Zeytinoğlu A, Erensoy S, Ok E. The acquisition time of infection: a determinant of the severity of hepatitis C virus-related liver disease in renal transplant patients. Clin Transplant 2009; 23:723-31. [PMID: 19573091 DOI: 10.1111/j.1399-0012.2009.01017.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The aim of this study was to compare the clinical and histopathological course of HCV infection acquired before and during or after renal transplantation. METHODS According to HCV status, 197 RT patients were divided into three groups. At the time of RT, anti-HCV antibody was positive in 47 patients (pre-RT HCV group). In 27 patients, in whom anti-HCV negative at the time of RT, anti-HCV and/or HCV RNA was found to be positive following an ALT elevation episode after RT (post-RT HCV group). Both anti-HCV and HCV RNA were negative at all times in remaining 123 patients (control group). RESULTS Liver biopsy was performed in 31 of 47 patients in pre-RT and 24 of 27 in post-RT HCV group after RT. Duration of follow-up was similar in all groups with a mean of 7.1 +/- 4.0 yr. Ascites and encephalopathy were seen in only post-RT HCV group (22%). Histological grade (6.5 +/- 2.7 vs. 4.1 +/- 1.4) and stage (2.0 +/- 1.5 vs. 0.8 +/- 0.8) was significantly severe in post-RT HCV group (p < 0.01). Three patients died due to liver failure in post-RT HCV group. CONCLUSIONS HCV infection acquired during or after RT shows a severe and rapidly progressive clinicopathological course, which is significantly different from pre-transplant anti-HCV positive patients.
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Affiliation(s)
- H Töz
- Division of Nephrology, Ege University Medical School, Izmir, Turkey.
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Affiliation(s)
- I Turan
- Section of Gastroenterology, Ege University School of Medicine, Izmir, Turkey.
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Brattwall M, Natorst-Böös K, Ekeman I, Turan I, Jakobsson J. Web-based quality questionnaire follow-up 30 days after an elective office-based orthopaedic surgery in general anaesthesia. Acta Anaesthesiol Scand 2009; 53:686-7. [PMID: 19419368 DOI: 10.1111/j.1399-6576.2009.01944.x] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Turan I, Zengin M, Musoglu A, Aydin A. Giardia lamblia infection as a possible cause of eosinophilic ascites and enterocolitis. Acta Gastroenterol Belg 2009; 72:265-266. [PMID: 19637787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Abstract
Some anaesthetic agents are known to inhibit microbial growth. The aim of this in vitro study was to investigate possible antimicrobial effects of two frequently used agents in intensive care units, dexmedetomidine and midazolam. Antimicrobial effect was tested on Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Pseudomonas aeruginosa by broth microdilution method. Midazolam showed inhibitor and bactericidal effect on S. aureus at concentrations 256 mmicrog x ml(-1) and 512/microg x ml(-1) respectively and on E. faecalis at concentrations 128 microg x ml(-1) and 256 microg x ml(-1). Dexmedetomidine demonstrated inhibitor effect on S. aureus, E. coli and P aeruginosa at concentrations 32 microg x ml(-1), 16 microg x ml(-1) and 16 microg x ml(-1) respectively. Midazolam had inhibitor and bactericidal effects on S. aureus and E. faecalis. Dexmedetomidine had only inhibitor effects on S. aureus, E. coli and P aeruginosa. Further studies are needed to determine the antimicrobial mechanisms and clinical applications.
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Affiliation(s)
- H Ayoglu
- Departments of Anesthesiology and Reanimation, Karaelmas University School of Medicine, Zonguldak, Turkey
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Turan I, Ozturk A, Akarca U, Ozutemiz O. An unusual cause of massive upper gastrointestinal bleeding: Dieulafoy's lesion within a giant midesophageal diverticulum. Endoscopy 2008; 40 Suppl 2:E177. [PMID: 18668464 DOI: 10.1055/s-2007-995807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- I Turan
- Section of Gastroenterology, Ege University School of Medicine, Izmir, Turkey.
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Gunduz A, Mentese A, Turedi S, Karahan SC, Mentese U, Eroglu O, Turkmen S, Turan I, Ucar U, Russell R, Balaban F. Serum ischaemia-modified albumin increases in critical lower limb ischaemia. Emerg Med J 2008; 25:351-3. [PMID: 18499817 DOI: 10.1136/emj.2007.051292] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Ischaemia is a common phenomenon in the pathogenesis of a wide range of medical and surgical conditions, including myocardial infarction, mesenteric vascular occlusion and compartment syndrome. Ischaemia modified albumin has been suggested as an aid to clinical decision making in various clinical settings. This study examines the usefulness of IMA in the diagnosis of limb ischaemia (LI). METHODS This case-controlled study was performed in the emergency department of Karadeniz Technical University Hospital, Turkey. 22 patients presenting to the emergency departments and definitively diagnosed with LI were enrolled in the study. A control group of 22 healthy volunteers served as a reference for biochemical parameters. RESULTS The mean serum IMA level for LI patients was 0.295 (SD 0.062) ABSU. The mean serum IMA level for control patients was 0.174 (SD 0.061) ABSU. There was a statistically significant difference between the mean LI patient and mean control patient IMA levels (p<0.0005). A ROC curve analysis reveals the relationship between sensitivity and specificity for IMA in limb ischaemia. CONCLUSION There is a significant increase in serum IMA in limb ischaemia. Furthermore, using a cutoff of 0.22 ABSU, ROC curve analysis shows that IMA is 81.8% sensitive and 81.8% specific 81.8% in patients with clinically severe lower limb ischaemia. Future studies would be needed to determine if IMA would be clinically useful in the diagnosis of subtle limb ischaemia.
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Affiliation(s)
- A Gunduz
- Department of Emergency Medicine, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey.
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Abstract
We examined the expression of three neuropeptides that have been implicated in nociceptive transmission, and the sympathetic nerve fiber marker tyrosine hydroxylase, in 11 painful human Morton's neuromas, using immunohistochemistry. Antibodies against the neural markers RT97 and PGP 9.5 were used to map the general nerve fiber organization of the neuromas. Four specimens of normal human peripheral nerves were used as controls. Substance P, calcitonin gene-related peptide, and neuropeptide Y immunoreactivities were more pronounced in neuroma tissue than in control nerves. Neuropeptide immunofluorescence was seen both in larger nerve fiber trunks and in masses of disorganized axon profiles dispersed in loose connective tissue. Tyrosine hydroxylase immunoreactivity was present at varying levels of expression in neuroma nerve fiber trunks, in connective tissue nerve fiber bundles, and around some blood vessels. Our findings suggest that neuropeptides are involved in the response to injury in Morton's neuromas and that they could play a role in initiation or modulation of pain. In addition, pain from Morton's neuromas could be influenced by sympathetic nerve fibers.
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Affiliation(s)
- A Lindqvist
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Felländer-Tsai L, Reinholt FP, Turan I. Complications with infection and foreign body reaction after silicon implant arthroplasty in the second metatarsophalangeal joint in an adolescent: a case report. J Foot Ankle Surg 1997; 36:452-6. [PMID: 9430001 DOI: 10.1016/s1067-2516(97)80098-1] [Citation(s) in RCA: 3] [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] [Indexed: 02/05/2023]
Abstract
A 21-year-old otherwise healthy male was referred to our clinic due to severe pain, deformation, development of fistules, and swelling of the second metatarsophalangeal joint of the right foot. He presented a history of two previous operations. At the age of 13, a 2-cm. resection of the distal part of the proximal phalanx was performed due to severe hammertoe deformity. At the age of 19, a partial phalanx resection and implantation of a silicon elastomer ball-shaped joint spacer was performed due to second metatarsophalangeal joint instability. After this operation, the patient suffered from fistules that appeared in the second metatarsophalangeal region. Following referral to our clinic, the patient was operated on. The proximal phalanx was removed along with the prosthesis which had slipped from the metatarsophalangeal joint into the proximal phalanx with the ends of the prosthesis perforating the skin. Debridement of infected tissue and implantation of gentamicin containing beads were performed. Bacterial specimens revealed growth of coagulase-negative staphylococci. Microscopic examination of the debrided tissue showed signs of acute and chronic inflammation. Postoperatively, the patient was treated with antibiotics and healing was uneventful. This case advocates the need for proper selection criteria and strict indications in patients with joint disease needing an arthroplasty.
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Affiliation(s)
- L Felländer-Tsai
- Department of Orthopaedic Surgery, Huddinge University Hospital, Karolinska Institutet, Sweden
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Turan I, Rivero-Melián C, Guntner P, Rolf C. Tarsal tunnel syndrome. Outcome of surgery in longstanding cases. Clin Orthop Relat Res 1997:151-6. [PMID: 9345220] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cases of longstanding (median, 60 months) tarsal tunnel syndrome were decompressed surgically in 14 female and four male patients. Patients reported intermittent dysesthesia, paresthesia, or anesthesia at the medial plantar aspect of the foot. Symptoms were aggravated by physical activities. Previous trauma was noted in four patients. Tinel's sign was positive in 16 patients. Magnetic resonance imaging was performed in 10 patients but was conclusive in only two. At surgery, the posterior tibial nerve or one of its branches was found to be entrapped in 15 patients. Entrapments were observed isolated or in combination within the fascial septa (n = 5), varicose veins (n = 6), scar tissues (n = 4), tenosynovitis and edema (n = 1), or within the abductor hallucis muscle (n = 1). Two neuromas were excised. In three patients no obvious entrapments were found. Clinical followup was performed a median 18 months after surgery. Relief of symptoms was reported as long as 1 year after surgery. All symptoms were relieved in 11 (61%) patients. Three (17%) patients with previous trauma had relatively severe pain after surgery and were considered to have failed results. Surgical decompression was beneficial in most patients with longstanding tarsal tunnel syndrome.
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Affiliation(s)
- I Turan
- Department of Orthopedic Surgery, Huddinge University Hospital, Sweden
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Abstract
Two patients with spontaneous medial plantar fascia rupture due to a definite injury with no prior symptoms, were referred to our institution. Clinically, there was a tender lump in the sole, and magnetic resonance imaging confirmed the diagnosis. Nonoperative treatment was sufficient in curing the acute total rupture. Endoscopic release was used on the partially ruptured plantar fascia, but it is probably more optimal in the acute phase. The literature provides no comparative data on operative or nonoperative treatment efficacy for this rare condition.
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Affiliation(s)
- C Rolf
- Department of Orthopedic Surgery, Huddinge University Hospital, Sweden
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Abstract
Traumatic dislocation of the tibialis tendon occurred from minor ankle sprains in a 37-year-old male and a 53-year-old female. Both complained of local pain at the medial malleolus, and both walked with a limp. The diagnosis was suspected by clinical examination, in one case with 2 months' delay, and verified by ultrasound, computed tomography, and magnetic resonance imaging. The male patient was initially treated for an "uncomplicated ankle sprain." For various reasons surgery was delayed 4 months. During this interval the male patient complained of pain and severe dysfunction, requiring analgesic treatment. A medial Achilles tendon flap was used to support the repositioned tendon. The female patient was operated on within 1 week from injury, by resuturing of the retinaculum over the tendon. Postoperatively, both patients were immobilized with below-knee casts for 6 weeks, allowing full weightbearing, followed by strength and stretching exercises. They were free of symptoms 2 and 3 months, respectively, after surgery. At follow-up 1 year postoperatively, both were asymptomatic and participated in activities like those before their injuries.
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Affiliation(s)
- C Rolf
- Department of Orthopaedic Surgery and Clinical Radiology, Huddinge University, Sweden
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Abstract
We aimed to study intrinsic factors in 29 consecutive patients with well-documented unilateral stress fractures of the tibia. Anthropometry, range of motion, isokinetic plantar flexor muscle performance, and gait pattern were analyzed. The uninjured leg served as the control. A reference group of 30 uninjured subjects was compared regarding gait pattern. Anterior stress fractures of the tibia (N = 10) were localized in the push-off/ landing leg in 9/10 athletes, but were similarly distributed between legs in posteromedial injuries (N = 19). Ten (30%) of the stress fracture subjects had bilateral high foot arches, similar to those found in the reference group. There were no other systematic differences in anthropometry, range of motion, gait pattern, or isokinetic plantar flexor muscle peak torque and endurance between injured and uninjured legs. No other differences were found between anterior and posteromedial stress fractures. We conclude that anterior stress fractures of the tibia occur mainly in the push-off/landing leg in athletes. Within the limitations of our protocol, no registered intrinsic factor was found to be directly associated with the occurrence of a stress fracture of the tibia.
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Affiliation(s)
- I Ekenman
- Department of Orthopaedic Surgery, Huddinge University Hospital, Sweden
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Turan I. [Foot surgery--not all the methods are good]. Lakartidningen 1995; 92:2286. [PMID: 7783483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Abstract
Patients with diabetic neuropathy are prone to ulceration on the sole of the foot, especially in areas with high weight-bearing pressure. The relationship between weight-bearing pressure and nutritive skin circulation in the plantar region was studied. Gait analysis was performed with the EMED Gait Analysis System and the skin circulation was measured by fluorescein flowmetry in ten neuropathic diabetic patients and in eight healthy controls. The critical plantar foot pressure above which nutritional blood flow in the skin was arrested was 3 N cm-2 or more in both diabetic and control subjects. Below 3 N cm-2 the blood flow was independent of weight-bearing pressure both in diabetic and control subjects (correlation coefficient r = -0.01 and -0.19, respectively). Thus, our results indicate that the nutritional blood flow in the plantar region is not decreased in patients with diabetic neuropathy.
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Affiliation(s)
- E Proano
- Department of Surgery, Huddinge University Hospital, Sweden
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Samnegard E, Turan I, Lanshammar H. Postoperative evaluation of Keller's arthroplasty and arthrodesis of the first metatarsophalangeal joint using the EMED gait analysis system. J Foot Surg 1991; 30:373-4. [PMID: 1940039] [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: 12/29/2022]
Abstract
The authors examined 10 patients who had arthrodesis at the first metatarsophalangeal joint and 10 patients who had Keller's arthroplasty operation. The EMED gait analysis was used to measure the pressure distribution over the sole of the foot during walking. Arthrodesis group had significantly increased maximum pressure in the first and third metatarsal regions. The Keller arthroplasty group had the lowest maximum pressure in the big toe but it was not significant.
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Turan I, Lindgren U, Lundberg I. Surgical treatment of forefoot deformity with special reference to polyarthritis. Clin Orthop Relat Res 1991:148-51. [PMID: 2044268] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Among 523 patients consecutively treated for forefoot pain and deformity, 64 had inflammatory arthritis. Most patients no longer had difficulties finding shoes that fit after the deformities were surgically corrected. Although about one half of the patients had some residual symptoms after treatment, 57 (89%) were satisfied with the operation. If the deformities are corrected early, joint resections can be avoided and toe function preserved.
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Affiliation(s)
- I Turan
- Department of Orthopaedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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Turan I, Lindgren U, Sahlstedt T. Computed tomography for diagnosis of Morton's neuroma. J Foot Surg 1991; 30:244-5. [PMID: 1874998] [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: 12/29/2022]
Abstract
Fifteen patients suspected to have Morton's neuroma were examined by computed tomography, which revealed the neuroma in seven cases. All seven underwent surgery and had the diagnosis confirmed. If there is doubt about the diagnosis, it is possible to use computed tomography as shown here.
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Affiliation(s)
- I Turan
- Karolinska Institute, Huddinge University Hospital, Sweden
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30
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Turan I, Blomgren G. Ankle arthrodesis by the Heiple technique in rheumatoid arthritis. J Foot Surg 1991; 30:143-6. [PMID: 1865065] [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: 12/29/2022]
Abstract
The authors report on seven rheumatoid arthritic patients that successfully sustained ankle joint arthrodesis. They incorporated a chevron fusion technique previously described. Patients were followed an average of 44 +/- 11 months. They report a satisfactory result.
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Affiliation(s)
- I Turan
- Department of Orthopedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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31
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Blomgren M, Turan I, Agadir M. Gait analysis in hallux valgus. J Foot Surg 1991; 30:70-1. [PMID: 2002190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The solar pressure zones were analyzed in the feet of 66 patients suffering from hallux valgus, together with 60 normal subjects. The EMED Gait Analysis System was used. In the hallux valgus group, the maximum pressure was found to be increased significantly in the small toe region and more proximally situated, close to the metatarsophalangeal joint. In the normal subjects, the maximum pressure was increased significantly in the first, second, third, and fourth metatarsal and heel regions. In general, the hallux valgus group had smaller contact areas compared to the control group. The increased pressure in the small toe region, together with the smaller contact areas manifested by the hallux valgus group, were interpreted in this work as being the possible causes of the metatarsalgia seen in patients with the deformity.
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Affiliation(s)
- M Blomgren
- Department of Orthopedic Surgery, Huddinge University Hospital, Sweden
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32
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Samnegård E, Turan I, Lanshammar H. Postoperative pressure under the rheumatic feet. J Foot Surg 1990; 29:593-4. [PMID: 2292653] [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: 12/31/2022]
Abstract
The authors examined ten seropositive rheumatoid arthritis patients with an EMED gait analysis system in a mean four years after foot surgery and compared that with ten normal subjects who formed a control group. The maximum pressure in the toe regions was almost the same as in the control group. The rheumatoid arthritis group had significantly increased maximum pressure in the first metatarsal and tarsal region.
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Affiliation(s)
- E Samnegård
- Department of Orthopaedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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33
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Turan I. Correlation between hallux valgus angle and age. J Foot Surg 1990; 29:327-9. [PMID: 2229905] [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: 12/30/2022]
Abstract
A study was made of the relationship between the hallux valgus angle and age. Between January 1983 and June 1985, 464 hallux valgus operations were performed on 404 patients at the Department of Orthopedic Surgery at Huddinge Hospital. The mean age of the patients was 54 +/- 12 years (range 16 to 75). The patients were divided into six groups with regard to nature and extent of radiographic changes. Linear regression analysis was used for analysis of the correlation between age and hallux valgus angle. A significant correlation was found in group 1: hallux valgus grade 1, type I (great toe rotated, slight bunion) and group 6: hallux valgus grade 2, type III (great toe rotated, severe bunion and severe arthrosis). There was a large scatter around the lines, however, which means that age is poor predictor of the hallux valgus angle.
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Affiliation(s)
- I Turan
- Department of Orthopedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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34
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Turan I. Treatment with external fixation of displaced talar fractures. J Foot Surg 1990; 29:276-7. [PMID: 2380501] [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: 12/31/2022]
Abstract
This article presents a case report on a 17-year-old girl who sustained a dislocation fracture of the talus, and was treated with external fixation. The fracture healed with a good result. After a 1-year follow-up, the patient had completely normal, pain-free mobility in the ankle joint. There were no radiographic signs of osteonecrosis.
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Affiliation(s)
- I Turan
- Department of Orthopedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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35
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Abstract
Endometrioid carcinoma is the second most common carcinoma of the ovaries. We report the first case of a poorly differentiated endometrioid ovarian carcinoma that metastasized to bone.
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Affiliation(s)
- I Turan
- Department of Orthopedics, Huddinge University Hospital, Sweden
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36
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Turan I. Normal and pathologic anatomy of hallux valgus. J Foot Surg 1989; 28:471-4. [PMID: 2584632] [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: 01/01/2023]
Abstract
The author reviews the pathologic entity of hallux valgus, using anatomic illustrations. Although this description is not considered to represent new information, foot surgeons must continue to appreciate the delicate biomechanical imbalances leading to this anomaly.
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Affiliation(s)
- I Turan
- Department of Orthopaedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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37
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Turan I, Lindgren U. Metatarsal osteotomy using internal fixation with compression screws. J Foot Surg 1989; 28:116-9. [PMID: 2738291] [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: 01/02/2023]
Abstract
Forty-six metatarsal osteotomies in 25 feet were performed in order to treat forefoot deformity. The authors used an exacting operative procedure based on oblique osteotomies of the metatarsal and rigid internal fixation. All osteotomies healed and only one patient was not satisfied with the operation. This technique provided predictable long-term results in the authors' hands, and also involved an easier postoperative course than conventional methods.
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Affiliation(s)
- I Turan
- Department of Orthopedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden
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38
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Turan I, Lundberg I. Proposed treatment of cystic lesions in the first metatarsal in polyarthritic patients. J Foot Surg 1989; 28:51-3. [PMID: 2654267] [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: 01/02/2023]
Abstract
Inflammatory arthritis frequently produces severe deformities of the forefoot. Erosions and cystic changes in the metatarsal bones are not uncommon in patients with inflammatory arthritis. This report presents two patients who were treated with a bone graft and bone transposition with a good result.
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Affiliation(s)
- I Turan
- Karolinska Institute, Huddinge University Hospital, Sweden
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39
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Turan I, Lindgren U. Compression-screw arthrodesis of the first metatarsophalangeal joint of the foot. Clin Orthop Relat Res 1987:292-5. [PMID: 3608314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The function of the foot is disturbed by a stiff, painful great toe. This problem can be overcome with a new technique for fusing the first metarsophalangeal joint at the desired angle with the joint surfaces conservatively resected with parallel, oblique cuts. The bones are then approximated and fixed in 20 degrees-30 degrees of dorsoflexion with two compression screws. The operation should shorten the toe 1.0 to 1.5 cm and give it a moderately valgus orientation. No additional fixation is used. Twenty patients were treated in a prospective study, and all fusions healed. After one year, 13 patients were free of symptoms, five had minimal symptoms, and two still had pain; poor results may be related to the malposition of the fused joint. The technique was simple, involved limited discomfort for the patient, and generally produced a functioning forefoot.
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Turan I, Kücüksorgulu T. [2 cases of echinococcal cysts of the breast]. Chirurg 1987; 58:361. [PMID: 3608689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Turan I, Lindgren U. Moiré topography in the care of foot deformities. J Foot Surg 1985; 24:339-41. [PMID: 4067195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Podoscopic images and moiré images combined are useful for comparing the foot under weight-bearing and non-weight-bearing conditions. This makes it possible to evaluate the effect of weightbearing on the bone structures of the foot and is valuable in the treatment of foot deformities.
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Turan I. Tarsometatarsal amputation and tibialis anterior tendon transposition to cuneiform I. J Foot Surg 1985; 24:113-5. [PMID: 3989225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Tarsometatarsal amputation often results in dropfoot followed by pressure points problems and making prosthetic fitting difficult. To avoid the dropfoot deformity and retain mobility of the ankle, the amputation was modified by transposing the tibialis anterior from metatarsal I to cuneiform I.
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Lindgren U, Turan I. A new operation for hallux valgus. Clin Orthop Relat Res 1983:179-83. [PMID: 6839585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A distal oblique osteotomy on the first metatarsal, with lateral displacement of the metatarsophalangeal joint and internal fixation with a compression screw, was performed. No splint or plaster was used. The operation is relatively simple and effective. Pain and discomfort during a short healing period are minimal. Forty-nine feet were operated on in 42 patients by eight surgeons. The patients were advised to bear full weight after six weeks. Return to unlimited work was possible after six weeks. The complications were superficial infection in one case and screws entering the metatarsophalangeal joint in two cases. One patient complained of metatarsalgia after the operation, but all other patients were satisfied after follow-up periods ranging from three months to six years.
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