1.Pure Uterine Lipoma, a Very Rare Benign Tumor.
Elif Ulker AKYILDIZ ; Sema OZUYSAL ; Akgul ARICI ; Mehmet Aral ATALAY
Korean Journal of Pathology 2010;44(6):679-681
Pure lipomas of the uterus are very rare tumors that may be misdiagnosed on radiological examination due to their rarity and fat content. We present here the case of a 57-year-old postmenopausal woman who presented to the hospital with lower abdominal pain. Abdominal hysterectomy and bilateral salpingo-oophorectomy were performed under the prediagnoses of benign cystic ovarian teratoma or leiomyoma. On the histopathological examination of tissue samples, the tumor was composed of mature fat cells. There were a few smooth muscle cells confined to the periphery. Pure uterine lipoma may be asymptomatic or it may have symptoms similar to those of leiomyoma such as vaginal bleeding or pelvic pain. A pure lipoma should be diagnosed only if smooth muscle cells are confined to the periphery.
Abdominal Pain
;
Adipocytes
;
Female
;
Humans
;
Hysterectomy
;
Leiomyoma
;
Lipoma
;
Middle Aged
;
Myocytes, Smooth Muscle
;
Pelvic Pain
;
Teratoma
;
Uterine Hemorrhage
;
Uterus
2.The Effects of Phenyramidol and Diclofenac Treatment on Fracture Healing in Rats
Mücahit ÇELIK ; Zekeriya Okan KARADUMAN ; Yalcın TURHAN ; Mehmet ARICAN ; Mehmet GAMSIZKAN ; Sönmez SAGLAM ; Veysel ULUDAG
Clinics in Orthopedic Surgery 2024;16(5):836-844
Background:
Fracture healing or nonunion refers to a process in which many factors interact. In this study, we aimed to evaluate the radiological, histological, and biomechanical effects of phenyramidol and diclofenac, which are frequently used to treat postfracture ture pain worldwide, on fracture healing and nonunion in a rat femur fracture model.
Methods:
In this study, 72 male Wistar-Albino rats aged 2–3 months and weighing 250 ± 30 g were divided into 4 main groups.The rats were divided into 12 subgroups according to the early, middle, and late periods. A fracture model was created in rat femurs, and surgical fixation was performed. Postoperative analgesic treatment protocols included phenyramidol, diclofenac, phenyramidol + diclofenac, and the control group. The rats were sacrificed on the fifteenth, thirtieth, and forty-fifth days and were evaluated radiologically, histopathologically, and biomechanically.
Results:
Scoring was conducted independently by 2 orthopedists not involved in the study. When the results were analyzed statistically, no statistically significant difference was observed between the fifteenth and thirtieth day radiology score values of the control, diclofenac, phenyramidol, and Phenyramidol + diclofenac groups (p > 0.05), but there was a statistically significant difference (p < 0.05) between the forty-fifth day radiology score values of the control, diclofenac, phenyramidol, and phenyramidol + diclofenac groups.
Conclusions
Our study shows that the use of diclofenac or phenyramidol alone negatively affects postoperative fracture healing.However, this effect was less pronounced in the combined treatment group. Histologic examination revealed that neither treatment had a significant effect on healing. There were statistical differences in biomechanical and radiologic properties between the phenyramidol and diclofenac groups; in particular, the diclofenac group had lower biomechanical properties.
3.The Effects of Phenyramidol and Diclofenac Treatment on Fracture Healing in Rats
Mücahit ÇELIK ; Zekeriya Okan KARADUMAN ; Yalcın TURHAN ; Mehmet ARICAN ; Mehmet GAMSIZKAN ; Sönmez SAGLAM ; Veysel ULUDAG
Clinics in Orthopedic Surgery 2024;16(5):836-844
Background:
Fracture healing or nonunion refers to a process in which many factors interact. In this study, we aimed to evaluate the radiological, histological, and biomechanical effects of phenyramidol and diclofenac, which are frequently used to treat postfracture ture pain worldwide, on fracture healing and nonunion in a rat femur fracture model.
Methods:
In this study, 72 male Wistar-Albino rats aged 2–3 months and weighing 250 ± 30 g were divided into 4 main groups.The rats were divided into 12 subgroups according to the early, middle, and late periods. A fracture model was created in rat femurs, and surgical fixation was performed. Postoperative analgesic treatment protocols included phenyramidol, diclofenac, phenyramidol + diclofenac, and the control group. The rats were sacrificed on the fifteenth, thirtieth, and forty-fifth days and were evaluated radiologically, histopathologically, and biomechanically.
Results:
Scoring was conducted independently by 2 orthopedists not involved in the study. When the results were analyzed statistically, no statistically significant difference was observed between the fifteenth and thirtieth day radiology score values of the control, diclofenac, phenyramidol, and Phenyramidol + diclofenac groups (p > 0.05), but there was a statistically significant difference (p < 0.05) between the forty-fifth day radiology score values of the control, diclofenac, phenyramidol, and phenyramidol + diclofenac groups.
Conclusions
Our study shows that the use of diclofenac or phenyramidol alone negatively affects postoperative fracture healing.However, this effect was less pronounced in the combined treatment group. Histologic examination revealed that neither treatment had a significant effect on healing. There were statistical differences in biomechanical and radiologic properties between the phenyramidol and diclofenac groups; in particular, the diclofenac group had lower biomechanical properties.
4.The Effects of Phenyramidol and Diclofenac Treatment on Fracture Healing in Rats
Mücahit ÇELIK ; Zekeriya Okan KARADUMAN ; Yalcın TURHAN ; Mehmet ARICAN ; Mehmet GAMSIZKAN ; Sönmez SAGLAM ; Veysel ULUDAG
Clinics in Orthopedic Surgery 2024;16(5):836-844
Background:
Fracture healing or nonunion refers to a process in which many factors interact. In this study, we aimed to evaluate the radiological, histological, and biomechanical effects of phenyramidol and diclofenac, which are frequently used to treat postfracture ture pain worldwide, on fracture healing and nonunion in a rat femur fracture model.
Methods:
In this study, 72 male Wistar-Albino rats aged 2–3 months and weighing 250 ± 30 g were divided into 4 main groups.The rats were divided into 12 subgroups according to the early, middle, and late periods. A fracture model was created in rat femurs, and surgical fixation was performed. Postoperative analgesic treatment protocols included phenyramidol, diclofenac, phenyramidol + diclofenac, and the control group. The rats were sacrificed on the fifteenth, thirtieth, and forty-fifth days and were evaluated radiologically, histopathologically, and biomechanically.
Results:
Scoring was conducted independently by 2 orthopedists not involved in the study. When the results were analyzed statistically, no statistically significant difference was observed between the fifteenth and thirtieth day radiology score values of the control, diclofenac, phenyramidol, and Phenyramidol + diclofenac groups (p > 0.05), but there was a statistically significant difference (p < 0.05) between the forty-fifth day radiology score values of the control, diclofenac, phenyramidol, and phenyramidol + diclofenac groups.
Conclusions
Our study shows that the use of diclofenac or phenyramidol alone negatively affects postoperative fracture healing.However, this effect was less pronounced in the combined treatment group. Histologic examination revealed that neither treatment had a significant effect on healing. There were statistical differences in biomechanical and radiologic properties between the phenyramidol and diclofenac groups; in particular, the diclofenac group had lower biomechanical properties.
5.The Effects of Phenyramidol and Diclofenac Treatment on Fracture Healing in Rats
Mücahit ÇELIK ; Zekeriya Okan KARADUMAN ; Yalcın TURHAN ; Mehmet ARICAN ; Mehmet GAMSIZKAN ; Sönmez SAGLAM ; Veysel ULUDAG
Clinics in Orthopedic Surgery 2024;16(5):836-844
Background:
Fracture healing or nonunion refers to a process in which many factors interact. In this study, we aimed to evaluate the radiological, histological, and biomechanical effects of phenyramidol and diclofenac, which are frequently used to treat postfracture ture pain worldwide, on fracture healing and nonunion in a rat femur fracture model.
Methods:
In this study, 72 male Wistar-Albino rats aged 2–3 months and weighing 250 ± 30 g were divided into 4 main groups.The rats were divided into 12 subgroups according to the early, middle, and late periods. A fracture model was created in rat femurs, and surgical fixation was performed. Postoperative analgesic treatment protocols included phenyramidol, diclofenac, phenyramidol + diclofenac, and the control group. The rats were sacrificed on the fifteenth, thirtieth, and forty-fifth days and were evaluated radiologically, histopathologically, and biomechanically.
Results:
Scoring was conducted independently by 2 orthopedists not involved in the study. When the results were analyzed statistically, no statistically significant difference was observed between the fifteenth and thirtieth day radiology score values of the control, diclofenac, phenyramidol, and Phenyramidol + diclofenac groups (p > 0.05), but there was a statistically significant difference (p < 0.05) between the forty-fifth day radiology score values of the control, diclofenac, phenyramidol, and phenyramidol + diclofenac groups.
Conclusions
Our study shows that the use of diclofenac or phenyramidol alone negatively affects postoperative fracture healing.However, this effect was less pronounced in the combined treatment group. Histologic examination revealed that neither treatment had a significant effect on healing. There were statistical differences in biomechanical and radiologic properties between the phenyramidol and diclofenac groups; in particular, the diclofenac group had lower biomechanical properties.
6.GST (GSTM1, GSTT1, and GSTP1) polymorphisms in the genetic susceptibility of Turkish patients to cervical cancer.
Beray KIRAN ; Mutlu KARKUCAK ; Hakan OZAN ; Tahsin YAKUT ; Kemal OZERKAN ; Sebnem SAG ; Mehmet TURE
Journal of Gynecologic Oncology 2010;21(3):169-173
OBJECTIVE: This work investigates the role of glutathione S-transferase M1 (GSTM1), glutathione S-transferase T1 (GSTT1), and glutathione S-transferase P1 (GSTP1) enzymes and polymorphisms, which are found in phase II detoxification reactions in the development of cervical cancer. METHODS: This study was conducted with 46 patients diagnosed with cervical cancer and 52 people with no cancer history. Multiplex PCR methods were used to evaluate the GSTM1 and GSTT1 gene polymorphism. However, the GSTP1 (Ile105Val) gene polymorphism was studied using a PCR-RFLP method. The patient and control groups were compared using a chi-square test with p<0.05. RESULTS: In the patient group, statistical significance was determined for gravidity (p=0.03), parity (p=0.01), and the number of living children (p=0.01) compared to the control group. The gene frequency of GSTM1, GSTT1, and GSTP1 polymorphisms was evaluated. We observed that GSTM1 and GSTT1 null genotype frequencies were 54.3% and 32.6% respectively, while GSTP1 (Ile/Val), (Ile/Ile), (Val/Val) genotype frequencies were 52%, 44%, and 4%, respectively, in the cervical cancer patients. No statistical variation was determined between the control and patient groups in terms of GSTM1, GSTT1, and GSTP1 polymorphisms (p>0.05). CONCLUSION: Our results demonstrate that GSTT1, GSTM1, and GSTP1 polymorphisms are not associated with cervical cancer in Turkish patients.
Child
;
Female
;
Gene Frequency
;
Genetic Predisposition to Disease
;
Genotype
;
Glutathione Transferase
;
Gravidity
;
Humans
;
Metabolic Detoxication, Phase II
;
Multiplex Polymerase Chain Reaction
;
Parity
;
Uterine Cervical Neoplasms
7.MMP-2, TIMP-2 and CD44v6 expression in non-small-cell lung carcinomas.
Bulent EREN ; Mehmet SAR ; Buge OZ ; Fazilet H Oner DINCBAS
Annals of the Academy of Medicine, Singapore 2008;37(1):32-39
INTRODUCTIONFactors that emerge as crucial participants in tumour invasion and metastases are matrix metalloproteinases (MMPs), tissue inhibitor of metalloproteinase (TIMP) inhibitors and cellular adhesion molecules (CD44 and similar molecules). They play important roles in tumour invasion and metastasis in non-small-cell lung carcinomas (NSCLCs).
MATERIALS AND METHODSThe study was performed using the data of 33 patients. MMP-2 from the metalloproteinase family, TIMP-2 from the metalloproteinase inhibitor family and the adhesion molecule CD44v6 expression were investigated immunohistochemically to search their role in the metastasis and the clinical outcome of the patients with NSCLCs.
RESULTSTwenty-three tumours (70%) were squamous cell carcinoma (SCC), 9 (27%) were adenocarcinoma (AC), and 1 (3%) was large cell carcinoma (LCC). MMP-2 and TIMP-2 were expressed in high rates in NSCLC but CD44v6 expression was about 50%. Lymphatic invasion was less frequent in TIMP-2- positive patients and this difference was statistically significant (P = 0.005). There was a statistically significant difference between SCCs and ACs with respect to CD44v6 tumoral expression (P = 0.004). Also, there was a negative correlation between lymphatic invasion and the extent of CD44v6; lymphatic invasion was significantly less in CD44v6-positive cases (P = 0.013).
CONCLUSIONWe found that TIMP-2 and CD44v6 can decrease the lymphatic invasion in NSCLCs. Also there was observed histiotype-related pattern of CD44v6 variant expression in SCCs.
Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; Carcinoma, Non-Small-Cell Lung ; enzymology ; pathology ; Female ; Humans ; Hyaluronan Receptors ; metabolism ; Immunohistochemistry ; Male ; Matrix Metalloproteinase 2 ; metabolism ; Middle Aged ; Tissue Inhibitor of Metalloproteinase-2 ; metabolism
8.Is craniocaudal dissection of recurrent laryngeal nerve safer than lateral approach: a prospective randomized study comparing both techniques by using continuous intraoperative nerve monitoring
Yalin ISCAN ; Nurcihan AYGUN ; Ismail Cem SORMAZ ; Fatih TUNCA ; Mehmet ULUDAG ; Yasemin Giles SENYUREK
Annals of Surgical Treatment and Research 2022;103(4):205-216
Purpose:
This study was performed to compare the real-time electromyographic (EMG) changes and the rate of recurrent laryngeal nerve (RLN) injury in craniocaudal and lateral approaches for RLN during thyroidectomy.
Methods:
One hundred twelve and 86 patients were prospectively randomized to receive lateral (group 1) or craniocaudal (group 2) approach to RLN, respectively, under continuous intraoperative nerve monitoring.
Results:
Loss of signal (LOS) occurred in 7 (2.0%) of 356 nerves at risk (NAR). LOS was significantly associated with repeated adverse EMG changes and presence of RLN entrapment at the ligament of Berry (LOB), which was accompanied by other clinicopathological or anatomical features, such as tubercle of Zuckerkandl (TZ), extralaryngeal branching, hyperthyroidism, autoimmune thyroid disease (ATD), or thyroid lobe volume of >29 cm 3 (P = 0.001 and P = 0.030, respectively). The rate of repeated adverse EMG changes and LOS in the NARs with LOB entrapment accompanied by other clinicopathological and anatomical features was higher in group 1 vs. group 2 (11.1% vs. 2.2%, respectively and 9.7% vs. 0%, respectively; P = 0.070). The total rate of vocal cord palsy (VCP) was significantly higher in group 1 than in group 2 (P = 0.005). The rate of permanent VCP showed no significant difference between the 2 groups.
Conclusion
The craniocaudal approach to the RLN is safer than the lateral approach in the RLNs with entrapment at the LOB accompanied by other features, such as TZ, extralaryngeal branching, hyperthyroidism, ATD, or high thyroid lobe volume.