Huseyin Ustun

T.C. Sağlık Bakanlığı Ankara Eğitim ve Araştırma Hastanesi, Engüri, Ankara, Turkey

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Publications (48)52.2 Total impact

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    ABSTRACT: The purpose of our study is to investigate the effect of subconjunctival amniotic membrane free graft on subconjunctival fibrovascular reaction. Twelve healthy male white New Zealand rabbits were used for the study. The rabbits were divided randomly into two groups: Study Group (n=6) and Control Group (n=6). In the Study Group, a 4mm limbal incision was made and a 4×4mm subconjunctival pocket was created with blunt dissection. A 4×4mm single layer of free amniotic membrane was placed in the pocket in an epithelium-up fashion without suturing. The limbal opening was secured with 10-0 nylon sutures on both sides. In the Control Group, a 4mm limbal incision was made, a 4×4mm subconjunctival pocket was created with blunt dissection, and the limbal opening was closed with 10-0 nylon sutures on both sides. After the first month, sclero-conjunctival blocks were obtained from the operated area and sections were stained with hematoxylin and eosin, Masson trichrome, and Ki67, SMA and CD34 antibodies. The number of fibroblasts, lymphocytes and macrophages was significantly higher in the Study Group than in the Control Group. The number of Ki67- and SMA-positive cells, and CD34-positive vessels was also significantly higher in the Study Group. Amniotic membrane appeared to form folds in all the specimens. The higher fibrovascular reaction shown by our histopathological examination indicates that free human amniotic membrane grafting without suturing is not useful in decreasing the subconjunctival fibrovascular reaction at the first postoperative month in rabbit eyes.
    Journal francais d'ophtalmologie 04/2014; · 0.51 Impact Factor
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    ABSTRACT: Objectif Notre étude avait pour but d’examiner l’effet sur la réaction fibrovasculaire d’une transplantation de membrane amniotique libre sous la conjonctive. Méthode Nous avons utilisé douze lapins blancs de Nouvelle-Zélande mâles et en bonne santé. Les lapins ont été répartis en deux groupes au hasard : le groupe à l’étude (n = 6) et le groupe témoin (n = 6). Dans le groupe à l’étude, on a effectué une incision limbique de 4 mm et créé une poche sous-conjonctivale de 4 × 4 mm à l’aide d’une dissection mousse. Une monocouche de membrane amniotique libre de 4 × 4 mm a été placée dans la poche sans effectuer de sutures de manière à ce que le haut de l’épithélium soit en position supérieure. L’ouverture limbique a été attachée des deux côtés à l’aide de sutures en nylon 10-0. Dans le groupe témoin, on a effectué une incision limbique de 4 mm et créé une poche sous-conjonctivale de 4 × 4 mm à l’aide d’une dissection mousse. Puis, l’ouverture limbique a été refermée des deux côtés à l’aide de sutures en nylon 10-0. À la fin du premier mois, on a obtenu des blocs scléroconjonctivaux à partir de la zone ayant subie l’opération puis on a effectué des coupes qui ont été colorées à l’hématoxyline, à l’éosine, au trichrome de Masson ainsi qu’aux anticorps Ki67, SMA et CD34. Résultats Le nombre de fibroblastes, de lymphocytes et de macrophages était significativement supérieur dans le groupe à l’étude que dans le groupe témoin. De plus, le nombre de cellules positives au Ki67 et au SMA ainsi que le nombre de vaisseaux positifs au CD34 étaient significativement supérieurs dans le groupe à l’étude. La membrane amniotique semblait former des plis chez tous les spécimens. Conclusions La réaction fibrovasculaire supérieure démontrée par notre examen histopathologique indique que la transplantation d’une membrane amniotique libre sans sutures n’est pas utile pour diminuer la réaction fibrovasculaire sous-conjonctivale chez les lapins un mois après l’opération.
    Journal francais d'ophtalmologie 01/2014; · 0.51 Impact Factor
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    ABSTRACT: OBJECTIVES: Radioiodine (RAI) is used in the treatment of hyperthyroidism and differentiated thyroid cancer. Radioiodine therapy is associated with dry eyes and some side effects are seen especially due to beta rays. In this study, the functional and cytological status of lacrimal glands after RAI therapy was evaluated. METHODS: Twenty-five patients with a mean age of 55.16 years with planned low-dose RAI therapy were evaluated. Just before and 6 months after the treatment, the lacrimal glands were evaluated with tear break-up time (BUT), Schirmer's test, impression cytology and "Ocular Surface Disease Index (OSDI)" questionnaire. RESULTS: The mean value of Schirmer's test was 16.20 ± 3.61 pre-treatment and 11.28 ± 4.39 post-treatment for the right eye, and 15.76 ± 3.27 and 10.60 ± 4.42 for the left eye, respectively. The mean value of Schirmer's test decreased significantly post-treatment in both eyes (p = 0.0001). The BUT score also decreased significantly post-treatment (p = 0.001). The mean value of OSDI score was 27.5 ± 8.02 pre-treatment and 46.36 ± 10.27 post-treatment. The mean value of OSDI score increased post-treatment (p = 0.0001). The impression scores also increased post-treatment in both eyes (p = 0.0001). CONCLUSION: Even low-dose (≤30 mci) RAI treatment affects lacrimal gland functions. Low-dose RAI causes a decrease in the value of Schirmer's test and the BUT test, and an increase in the value of OSDI score and impression scores.
    Annals of Nuclear Medicine 02/2013; · 1.41 Impact Factor
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    ABSTRACT: To report a patient of lipoid proteinosis (LP) with bilateral keratoconus. METHODS: A 16-year-old boy presented to our institution with a complaint of gradual decrease in vision over the past 4 years in both eyes and a contact lens intolerance. He had a hoarse voice and multiple areas of hyperpigmented lesions over the head and neck region. Slit lamp biomicroscopy of the both eyes showed multiple round solid pearly lesions along the upper and lower lid margins and a mild central corneal ectasia in both eyes. Central corneal thickness and the keratometric values were measured by using Scheimpflug imaging (Pentacam), and the results were compatible with keratoconus. The histopathologic examination of the lesions taken from bilateral eyelid margins showed hyalinosis, papillomatosis, and depositions of eosinophilic material around the blood vessels, which were compatible with LP. CONCLUSIONS: With this report, we describe a case of LP with keratoconus. As seen in our case, LP and its characteristic eyelid margin lesions in keratoconus patients can be associated with a contact lens intolerance.
    Eye & contact lens 01/2013;
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    ABSTRACT: Purpose. Using the classical Ankaferd Blood Stopper (ABS) solution to create active hemostasis during partial nephrectomy (PN) may not be so effective due to insufficient contact surface between the ABS hemostatic liquid agent and the bleeding area. In order to broaden the contact surface, we generated a chimeric hemostatic agent, ABS nanohemostat, via combining a self-assembling peptide amphiphile molecule with the traditional Ankaferd hemostat. Materials and Methods. In order to generate ABS nanohemostat, a positively charged Peptide Amphiphile (PA) molecule was synthesized by using solid phase peptide synthesis. For animal experiments, 24 Wistar rats were divided into the following 4 groups: Group 1: control; Group 2: conventional PN with only 0.5 ml Ankaferd hemostat; Group 3: conventional PN with ABS + peptide gel; Group 4: conventional PN with only 0.5 ml peptide solution. Results. Mean warm ischemia times (WITs) were 232.8 ± 56.3, 65.6 ± 11.4, 75.5 ± 17.2, and 58.1 ± 17.6 seconds in Group 1 to Group 4, respectively. Fibrosis was not different among the groups, while inflammation was detected to be significantly different in G3 and G4. Conclusions. ABS nanohemostat has comparable hemostatic efficacy to the traditional Ankaferd hemostat in the partial nephrectomy experimental model. Elucidation of the cellular and tissue effects of this chimeric compound may establish a catalytic spark and open new avenues for novel experimental and clinical studies in the battlefield of hemostasis.
    International Journal of Biomaterials 01/2013; 2013:949460.
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    ABSTRACT: Ankaferd Blood Stopper® (ABS) is a folkloric medicinal plant extract used as a haemostatic agent in traditional Turkish medicine. The aim of this study was to investigate the efficacy of ABS on the healing of dermal wounds in a rat model. Twenty Wistar albino rats were divided into two groups. Standard full-thickness skin defects were created on the back of the rats. In the control group (group 1), dressings moisturised with saline were changed daily. In the study group (group 2), the wounds were cleaned daily with saline, Ankaferd solution was applied, then the wounds were covered with moisturised dressings. The contraction percentage of wound areas were calculated on the 3rd, 7th, 10th and 14th days using a planimetric program. On day 14, the wound areas were excised for histopathological examination, inflammatory scoring and evaluation of collagen deposition. The study group was superior to the control group in terms of inflammatory scoring, type I/type III collagen ratio and wound contraction rates. ABS® may be used effectively and safely on full-thickness wounds as a natural product.
    International Wound Journal 09/2012; · 1.60 Impact Factor
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    ABSTRACT: The aim of this study is to investigate the effect of formoterol (β2 adrenergic receptor agonist) on peritoneal VEGF levels in rats with endometriosis. Experimental endometriosis was constituted with implantation of endometrial tissue. The implants were examined by second laparatomy and rats were divided randomly into four groups. One cc saline was applied ip to the control (C) group (n=8) daily, 22.5μg/kg/day ip formoterol was applied to the second (F) group (n=10) daily, 22.5μg/kg/day ip formoterol and 10mg/kg/day ip propranolol were applied to the third (FP) group (n=10) daily, 45μg/kg/day ip formoterol was applied to the fourth (FF) group (n=9). Before treatment and after 30 days treatment period, peritoneal VEGF levels, the volumes and histopathological properties of the implants were evaluated. There were significant differences in between the peritoneal VEGF levels before and after treatment in group 2(F) and group 4(FF) (p(a): 0.01, 0.01 respectively). But there were no significant changes in between the volumes of implants before and after treatment among the groups (p>0.05). There were no significant differences among the groups in histopathological parameters (p>0.05). Formoterol treatment was seen to have no effect on the volumes and histopathological structure of endometriotic implants in our study. On the other hand, based on the group 2(F) and 4's (FF) VEGF levels after the treatment, low dose or high dose formoterol may be effective with long term therapy. Formoterol may reduce the development of endometriosis.
    Cytokine 04/2012; 58(1):47-9. · 2.52 Impact Factor
  • JOURNAL OF ENDOUROLOGY. 01/2012; 26:A248-A248.
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    ABSTRACT: An antibacterial drug, ciprofloxacin, has been reported to modulate the inflammatory and immune responses on monocytes. Our objective is to evaluate the effectiveness of ciprofloxacin in the prevention of myringosclerosis that is created by myringotomy in rats and to compare it with prednisolone. In this study, 24 healthy Sprague-Dawley type rats of age 3-4 months and 250-300 g weight were used. Rats have been divided into three random groups. Topical ciprofloxacin was administered to the rats in the first group and topical prednisolone was administered to the rats in the third group; no medication was applied to their opposite ears and they were determined as control group. Prednisolone was administered to one ear of the rats and ciprofloxacin was administered to their opposite sides in the second group. After bilateral myringotomies the treatments were applied for 20 days as five drops two times a day. Otomicroscopic examination was made on the 10th day and reperforations were made when necessary. Rats were killed on the 21st day and temporal bone dissections were done. When we evaluate in terms of myringosclerosis and tympanic membrane thickness, in the first group, myringosclerosis and thickness have been observed in two of seven ears (28.6%) where ciprofloxacin was administered and in five of the seven ears (71.4%) where no treatment was applied. In the second group where prednisolone and ciprofloxacin were compared, myringosclerosis and thickness have been observed in six of the ten ears (60.0%) where prednisolone was administered and in four of the ten ears (40.0%) where ciprofloxacin was administered. In the third group, myringosclerosis and thickness have been observed in three of seven ears (42.9%) where prednisolone was administered and in four of the seven ears (57.1%) where no treatment was applied. All histopathological evaluations were made by one pathologist in a blinded manner. In our study, the effect of the ciprofloxacin and prednisolone was similar in preventing the experimental myringosclerosis and TM thickness in rats. When compared with the control groups, this preventive effect was more obvious in the ciprofloxacin treatment group than that of prednisolone.
    Archives of Oto-Rhino-Laryngology 12/2011; 269(11):2335-41. · 1.29 Impact Factor
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    ABSTRACT: The aim of our study was to investigate the effect of the topical use of mitomycin C (MMC) intraoperatively in single dose and intra-postoperatively in two doses on the narrowing of antrostomy in maxillary rabbit sinus antrostomies created experimentally. And also to determine the local and systemic side effects of topical MMC. With this objective, 0.6 mg/ml MMC was used to the first group at single dose and to the second group intraoperatively and on third day postoperatively in two doses topically for 5 min. After 8 weeks, although the mean area of antrostomy was larger than that in the control side in the first group, which received single dose MMC, the difference was not statistically significant (p = 0.287). The second group received two doses, and the antrostomy areas were found to be significantly larger than the controls (p = 0.05). Overall, the sides that received MMC were significantly larger (p = 0.029). From the point of histopathological examination of the tissue, it was seen that two-dose MMC increased the edema indicating inflammation and antrostomy resolved with normal respiratory tract epithelium. It was shown by measuring the blood values that nephrotoxic and myelosupressant effect of MMC occurring in systemic use did not occur with single or double dose topical use. Our results demonstrate that even if the number of cases was low, two doses of topical MMC usage prevent the narrowing of antrostomy while single dose MMC does not. And two-dose topical MMC usage does not have local and systemic side effects.
    Archives of Oto-Rhino-Laryngology 06/2011; 268(11):1597-603. · 1.29 Impact Factor
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    ABSTRACT: Malignant deciduoid mesothelioma (MDM) is a rare variant of epithelioid mesothelioma. This type of tumor might be associated with the asbestos exposure and carries a poor prognosis in general. MDM was first described by Nascimento et al. in 1994 in a peritoneal lesion of a young woman. And its diagnosis is frequently mistaken with florid mesothelial hyperplasia and peritoneal deciduosis. There are 44 MDM cases reported in the literature up today. A 59-year-old woman patient referred to our clinic was identified with an abdominal mass. Computed tomography of whole abdomen of the patient showed a mass with the widest transverse dimension of 65 × 60 mm at abdominal bifurcation in the mesenteric region. The patient was diagnosed with MDM after the cytopathological examination of the fine needle aspiration biopsy performed from the mass. Consequently, she received a total mass excision and right hemicolectomy under general anesthesia. The cytomorphological appearance of the ascitic fluid is detailed for the first time by Gillespie et al. and is described only in two manuscripts. In the present study, we aimed to report a case of a 59-year-old woman since she was diagnosed with MDM and because her cytological findings were further supported by histomorphological and immunohistochemical evaluations of the operation material obtained from the patient.
    Diagnostic Cytopathology 06/2011; 39(6):402-8. · 1.49 Impact Factor
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    ABSTRACT: Ectomesenchymal chondromyxoid tumor is a rare tumor seen in the anterior dorsal aspect of the tongue. Diagnosis of this lesion without a prediagnosis clinically is made only with histopathological findings including the immunohistochemical examinations. However, diverse results are being reported in the literature with keratin staining. While glial fibrillary acid protein positiveness maintain being a fixed repeating feature, we emphasized for our case of a 28-year-old Caucasian woman having the findings of qualities supporting the ectomesenchymal origin of the mentioned tumor.
    The Kaohsiung journal of medical sciences 05/2011; 27(5):203-5. · 0.50 Impact Factor
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    ABSTRACT: To evaluate the acute effects of increased intra-abdominal pressure (IAP) on testicular germ cell apoptosis and the expressions of endothelial nitric oxide synthase (eNOS), inducible nitric-oxide synthase (iNOS), and Johnson's scores in testicular tissue. Twelve male pigs weighing 52 to 55 kg were divided into 2 groups as group 1 (n = 6; gasless [control]) and group 2 (n = 6; 20 mm Hg IAP with CO(2) pneumoperitoneum for 4 hours). In the second group, left laparoscopic nephrectomy was performed during the CO(2) insufflation period. The right testes of pigs were removed. Testicular germ cell apoptosis, expressions of eNOS and iNOS, and Johnson's scores were evaluated for each group. The control group (group 1) exhibited low apoptotic cell level and low iNOS and eNOS level in testes. IAP (group 2) resulted in marked increases in germ cell apoptosis, eNOS, and iNOS compared with the control group (group 1) (P <.05). However, no significant difference was noted in Johnson's scores between the 2 groups (P >.05). Moreover, Leydig cell hyperplasia, congestion, and necrosis, which were not documented in the control group, were seen in the study group. The purpose of the present study was to evaluate whether IAP could affect germ cell apoptosis and NOS concentrations in the testes after laparoscopic procedures in an animal model. In such an animal model simulating laparoscopic procedures, we demonstrated that high-pressure and long-lasting CO(2) insufflation cause testicular changes in the acute period.
    Urology 02/2011; 77(2):510.e12-6. · 2.42 Impact Factor
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    ABSTRACT: To investigate the effects of vardenafil HCl on testicular germ cell apoptosis and the expressions of iNOS and eNOS within the bilateral testes after unilateral torsion/detorsion (T/D) in a pig model. 12 male pigs weighing 50-55 kg were divided randomly into three groups (n = 4). Sham operation and T/D was performed in groups 1 and 2, respectively. Group 3 underwent T/D and received vardenafil (0.4 mg/kg) orally 45 min before detorsion. The testes were left in torsion for 2 h. In all groups, both testes were removed 8 h after the operation for histopathological analysis. Except for group 1, the histopathologic parameters of the ipsilateral testes were higher than in the contralateral testes, and this difference was statistically significant (p < 0.05). Testicular ischemia/reperfusion (I/R) (group 2) resulted in marked increases in germ cell apoptosis, iNOS and eNOS in the ischemic testes compared to the sham-operated group. The pigs treated with vardenafil (group 3) also showed significantly increased apoptotic cells, iNOS and eNOS levels compared to the sham-operated group. The results suggest that vardenafil HCl worsened histopathological changes related to oxidative stress in testicular injury and had no protective effect on testicular I/R injury in pigs.
    Urologia Internationalis 12/2010; 86(2):228-32. · 1.07 Impact Factor
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    ABSTRACT: To investigate effectiveness of doxycycline after trabeculectomy in rabbits by evaluating bleb appearance, intraocular pressure, and levels of matrix metalloproteinase-1, -2, -3, and -9 and tissue inhibitors of metalloproteinase (TIMP)-1 and -2 in the subconjunctival (sc) area. Twenty-nine New Zealand White rabbits were assigned into 1 of 6 groups as follows: topical doxycycline (0.1%), postoperative sc injection of doxycycline (100 mg/2 mL), and intraoperative mitomycin-C (MMC) (0.2 mg/mL) and their respective control groups. There was significant difference between intraocular pressure in the case groups, but there was no significant difference in topical doxycycline and MMC groups during the follow up. In the topical doxycycline group, levels of TIMP-1 and perifericTIMP-1 were higher and levels of perifericMMP-2 and inflammation were lower than their controls. In the sc doxycycline group, peripheral inflammation was higher than in the corresponding control. Only peripheral inflammation was significantly different between case groups, with the highest level in sc and the lowest level in MMC groups. Further, topical doxycycline group showed no significant difference in bleb appearance or peripheral inflammation compared with MMC group. Conjunctival burn and corneal vascularization were detected only in the sc doxycycline group. Topical doxycycline is more effective than sc doxycycline but is similar to MMC, and it can be an alternative to MMC in trabeculectomy in rabbits.
    Journal of ocular pharmacology and therapeutics: the official journal of the Association for Ocular Pharmacology and Therapeutics 10/2010; 26(5):399-406. · 1.46 Impact Factor
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    ABSTRACT: To investigate the effect of Ankaferd Blood Stopper (ABS), on renal tubular apoptosis and on expressions of endothelial nitric oxide synthase (eNOS), inducible nitric oxide synthase (iNOS), and apoptosis protease-activating factor-1 (Apaf-1) in the ipsilateral kidney after an experimentally formed partial nephrectomy in a rat model. The study was performed in 2009 at the Ankara Training and Research Hospital, Animal Laboratory Center, Ankara, Turkey. We divided 24 Wistar rats into the following 4 groups. Group I (GI) - partial nephrectomy (PN) with hilar control as the conventional technique, Group II (GII)-the conventional technique with ABS, Group III (GIII) - received ABS application to the renal parenchyma and collecting duct with hilar control (non-sutured group). Group IV (GIV) - PN and ABS were performed without hilar control. The ABS solution (1 cc) was applied during the surgery to stop bleeding from resected renal tissue. At first month, all rats were sacrificed. Renal tubular apoptosis was investigated. The mean percentage of apoptotic cell counts in GI were 20% iNOS, 20% eNOS, and 10% Apaf-1. In GII they were 10% iNOS, 20% eNOS, 5% Apaf-1, in GIII they were 40% iNOS, 50% eNOS, 30% Apaf-1, and in GIV they were 5% iNOS, 5% eNOS, and 3% Apaf-1. There was no significant decrease in apoptotic cells in GII, GIII, and GIV, to which we applied ABS. The highest percentage of apoptosis was shown in GIII accompanied by significant inflammation. The lowest percentage was determined in GIV, the non-warm ischemia group. The ABS has a dual biphasic de novo effects on apoptosis. The challenge of severe hemorrhage in the renal tubular cellular micro-environment causes ABS-induced down-regulations in the expressions of apoptotic molecules, indicating that ABS may act as a topical biological response modifier.
    Saudi medical journal 08/2010; 31(8):864-8. · 0.62 Impact Factor
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    ABSTRACT: The aim of the present study was to investigate the preventive effects of propofol and ketamine as anesthetics on renal injury in unilateral ureteral obstruction (UO). Twenty-four male New Zealand white rabbits were randomly assigned to four groups of six rabbits each. Anesthesia was induced and maintained with propofol in groups 1 and 2 and with ketamine in groups 3 and 4. Groups 2 and 4 received complete left ureteral ligation. Groups 1 and 3 (control groups) underwent an identical surgical procedure without ureteral ligation. At 14 days of obstruction, animals were sacrificed and ipsilateral kidneys were removed for determination of tissue nitric oxide (NO) levels and immunohistochemical evaluation of endothelial nitric oxide synthase (eNOS), inducible NOS (iNOS), and apoptosis protease-activating factor 1 (APAF-1). Between groups 1 and 3, there were no differences in tissue NO levels and eNOS, iNOS, and APAF-1 expressions. iNOS and APAF-1 expressions were at the mild to moderate levels in group 2, but these parameters were markedly increased in group 4 at 14 days of obstruction. Also, elevated expression of iNOS was accompanied by a high NO production in group 4 compared with group 2. Although eNOS expressions were increased in both groups 2 and 4, there were no significant differences between these groups. Propofol as an anesthetic agent may attenuate NO-induced renal tubular cell apoptosis by downregulating the expression of iNOS in an animal model of unilateral UO.
    Journal of Anesthesia 02/2010; 24(1):73-80. · 0.87 Impact Factor
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    ABSTRACT: Ankaferd Bloodstopper (ABS) which is a medicinal product has been approved in the control of hemorrhage externally, den-tal surgery bleedings in Turkey to control the bleeding in renal trauma model was evaluated. Twelve Wistar rats were divi-ded into two groups. Group I (GI),control, Group II (GII), study group. One cm2 tissue was resected. ABS solution was app-lied to resected area in study group. Standard suture was applied to control group. Bleeding time, number of ABS, live con-dition were evaluated. Histopathologic evaluations were completed. Mean time of bleeding control was 3.2 (2.4-3.6) min in GII, no difference with GI (p> 0.05). In GII, active hemostasis was provided. Mean number of ABS gout was 6.0 (5-8). Glo-merular necrosis was detected with higher rate in GI compared with GII. Erythrocyte aggregation was confirmed in GII. Cal-cification was formed significantly in GI compared GII (p< 0.05). ABS could be an effective agent to stop active major ble-eding in renal trauma model. ÖZET Rat Major Renal Travma Modelinde Ankaferd Kan Durdurucunun in Vivo Etkisi: Yeni Hemostatik Ajan›n Kontrollü Çal›flmas› Ülkemizde eksternal ve dental kanamalar›n kullan›m›nda onay alm›fl t›bbi ürün olan Ankaferd Bloodstopper'›n renal travma modelindeki etkinli¤i araflt›r›ld›. Oniki Wistar rat çal›flmaya al›narak iki gruba ayr›ld›. Grup I control, Grup II çal›flma grubu olarak belirlendi. 1 cm2 doku rezeke edildi. Çal›flma grubunda ABS solüsyonu rezeke edilen Alana uyguland›. Kontrol grubuna ise standart suture uyguland›. Kanama süresi, ABS uygulama say›s›, yaflam devaml›l›¤› de¤erlendirildi. Histopatolojik de¤erlendirme yap›ld›. Ortalama kanama süresi GII'de 3.2 (2.4-3.6) dak. Idi GII ile anlaml› fark yoktu (p>0.05). GII'de aktif hemostaz sa¤land›. Ortalama ABS say›s› 6.0 (5-8) idi. Glomerüler nekroz GI'de GII'ye gore daha yüksek oranda saptand›. Eritrosit agregasyonu GII'de saptand›. Kalsifikasyon GI'de anlaml› olarak fazlayd› (p<0.05). ABS aktif mahör renal travma modelindeki kanamalarda etkili olabilir.
    01/2010;
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    ABSTRACT: Differential diagnosis of the group of benign trichoblastomas, trichofolliculomas, trichoadenomas and trichoepitheliomas, and basal cell carcinomas (BCCs) is troublesome for the clinician as well as the pathologist, especially when only small biopsy specimens are available. Here we investigated whether CD34 expression might be of assistance. Thirty benign tumors of cutaneous appendages originating from hair follicles (BTCOHF) and 30 BCCs were retrieved from our archives and immunohistochemically stained. CD 34 expression was graded from [0] to [2+] and compared among the groups and subgroups. There was no significant difference between the degree of expression between [0] and [1+] and [0] and [2+] for each group. However, [1+] and [2+] immunopositivity of BTCOHFs was significantly stronger than in BCCs (p= 0.014). CD34 may contribute to differential diagnosis of skin lesions.
    Asian Pacific journal of cancer prevention: APJCP 01/2010; 11(6):1615-9. · 1.50 Impact Factor
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    ABSTRACT: Differential diagnosis between the group of trichoadenoma, trichofolliculoma, trichoepithelioma, trichoblastoma and basal cell carcinoma has been creating some difficulties for the pathologist and the clinicians, particularly in the presence of small specimens. A total of 30 cases of benign tumours of cutaneous appendages originating from the hair follicle and 30 cases of basal cell carcinoma were retrieved from the archives deposited from 2004 to 2008. The expression of CD10 in both tumours was graded from [0] to [2+] for each case. The immunoreactivity of CD10 was comparatively examined among the groups and each subgroup. The stromal CD10 immunopositivity of benign tumours of cutaneous appendages originating from the hair follicle was stronger than the other (p = 0.003) regarding both the numerical and the degree of expression. However, peripheral CD10 of basal cell carcinoma was stronger than the other for [1+] immunopositivity (p = 0.03). It was exact opposite for [2+] (p = 0.013). Besides, central CD10 immunopositivity and CD10 reactivity for the subgroups was not significant. CD10 may be very useful for the differential diagnosis between them particularly in the small and superficial biopsies and it may be even a life-saving method in some selected cases.
    Polish journal of pathology: official journal of the Polish Society of Pathologists 01/2010; 61(3):140-6. · 0.49 Impact Factor

Publication Stats

150 Citations
52.20 Total Impact Points

Institutions

  • 2005–2011
    • T.C. Sağlık Bakanlığı Ankara Eğitim ve Araştırma Hastanesi
      Engüri, Ankara, Turkey
  • 2004–2011
    • Ankara Numune Training and Research Hospital
      Engüri, Ankara, Turkey
    • Dr A.Y. Ankara Oncology Training and Research Hospital
      Engüri, Ankara, Turkey
  • 2009
    • Ministry of Health, Turkey
      Engüri, Ankara, Turkey