2.Patterns of proliferation and fibrosis in a rat model of endometriosis following administration of Allium cepa
Hakan KULA ; Orkun ILGEN ; Sefa KURT ; Filiz YILMAZ
Clinical and Experimental Reproductive Medicine 2024;51(2):112-119
Objective:
Endometriosis is a common gynecological disease among reproductive-age women. Numerous hypotheses exist regarding the pathogenesis of endometriosis. In Turkey, the consumption of Allium cepa (commonly known as the “onion cure”) is a popular treatment employed to alleviate a variety of gynecological disorders.
Methods:
In this study, our objective was to assess the therapeutic mechanisms of the onion bulb A. cepa using an autologous endometriosis model in Sprague-Dawley rats. Previous research has shown that A. cepa possesses anti-inflammatory, antioxidant, and antiapoptotic properties. We evaluated the pathological condition of endometriotic implants by employing hematoxylin-eosin staining and Ki67 immunohistochemistry analysis. Transforming growth factor-beta 1 (TGF-β1) and alpha-smooth muscle actin (α-SMA) have been identified as profibrotic markers that are highly overexpressed in endometriotic tissues relative to eutopic endometrial tissue. Furthermore, TGF-β1 influences the differentiation and progression of endometriosis. To quantify profibrotic activity, we measured TGF-β1 and α-SMA using the immunosorbent assay method.
Results:
Lower histologic evaluation scores for endometriotic implants were observed in the group receiving high-dose A. cepa relative to the other groups. Ki67 expression was reduced following the high-dose A. cepa regimen, which consisted of 30% A. cepa and 70% normal feed. However, no statistically significant differences in TGF-β1 or α-SMA levels were observed among the groups (p=0.7 and p=0.778, respectively).
Conclusion
The findings suggest that A. cepa could serve as a therapeutic agent in endometriosis treatment, as evidenced by the reduction in proliferative potential. Nevertheless, A. cepa was not associated with significantly lower levels of endometriosis-associated TGF-β1 or α-SMA.
3.The effects of berberine on ischemia-reperfusion injuries in an experimental model of ovarian torsion
Filiz YILMAZ ; Orkun ILGEN ; Alper MANKAN ; Bayram YILMAZ ; Sefa KURT
Clinical and Experimental Reproductive Medicine 2023;50(4):292-298
Objective:
Ovarian torsion is a gynecological disorder that causes ischemia-reperfusion injuries in the ovary. Our study investigated berberine’s short- and long-term effects on ovarian ischemia-reperfusion injuries.
Methods:
This study included 28 Wistar albino female rats weighing 180 to 220 g, which were divided into four groups: sham (S), torsion/detorsion (T/D), torsion/ detorsion+single dose berberine (T/D+Bb), and torsion/detorsion+15 days berberine (T/D+15Bb). The torsion and detorsion model was applied in all non-sham groups. In the T/D+Bb group, a single dose of berberine was administered, while in the T/D+15Bb group, berberine was administered over a period of 15 days. After the rats were euthanized, their ovaries were excised. The left ovaries were used for histopathologic evaluation, which included ovarian injury scoring and follicle count, while the right ovaries were used for biochemical analyses (tissue transforming growth factor-β [TGF-β] and alpha-smooth muscle actin [α-SMA] levels).
Results:
The histopathologic evaluation scores for the ovaries were significantly lower in the T/D+B group (p<0.05) and the T/D+15B group (p<0.005) than in the T/D group. The follicle counts in the T/D group were lower than those in both the sham and treated groups (p<0.005). The TGF-β levels were significantly lower in the T/D+15B group (p<0.005), whereas the α-SMA levels did not show a significant difference.
Conclusion
Both short- and long-term berberine use could potentially have therapeutic effects on ovarian torsion. Long-term berberine use exhibited anti-inflammatory effects by reducing TGF-β levels, thereby preventing ischemia-reperfusion injuries. Therefore, we suggest that long-term berberine use could be beneficial for ovarian torsion.
4.On the Severity of Carpal Tunnel Syndrome: Diabetes or Metabolic Syndrome.
Fatma GUL YURDAKUL ; Hatice BODUR ; Ozgur OZTOP CAKMAK ; Can ATES ; Filiz SIVAS ; Filiz ESER ; Ozlem YILMAZ TASDELEN
Journal of Clinical Neurology 2015;11(3):234-240
BACKGROUND AND PURPOSE: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy. Although its etiology is unknown, certain conditions are commonly associated with CTS, such as obesity, arthritis, hypothyroidism, diabetes mellitus, trauma, mass lesions, amyloidosis, and sarcoidosis. We aimed to determine the association between metabolic syndrome and CTS, and we compared the severity of CTS between patients with diabetes (and no concomitant metabolic syndrome) and patients with metabolic syndrome. METHODS: Two hundred patients with a clinically and electrophysiological confirmed diagnosis of CTS were included in the study. Their demographic characteristics and severity of CTS were analyzed according to the presence or the absence of metabolic syndrome. Differences in the electrophysiological findings were evaluated between the following four groups: 1) metabolic syndrome alone (n=52), 2) diabetes alone (n=20), 3) combined metabolic syndrome and diabetes (n=44), and 4) no metabolic syndrome or diabetes (n=84). RESULTS: CTS was more severe in the patients with metabolic syndrome than those without this syndrome. The electrophysiological findings were worse in patients with metabolic syndrome alone than in those with diabetes alone and those without diabetes and metabolic syndrome. CONCLUSIONS: CTS appears to be more severe in patients with metabolic syndrome than patients with diabetes. Diabetes is one of the well-known risk factors for CTS, but other components of metabolic syndrome may have a greater effect on the severity of CTS.
Amyloidosis
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Arthritis
;
Carpal Tunnel Syndrome*
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Diabetes Mellitus
;
Diagnosis
;
Electrophysiology
;
Humans
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Hypothyroidism
;
Obesity
;
Risk Factors
;
Sarcoidosis
5.Durability of Sustained Virologic Response in Chronic Hepatitis C.
Ahmet UYANIKOGLU ; Sabahattin KAYMAKOGLU ; Ahmet DANALIOGLU ; Filiz AKYUZ ; Fatih ERMIS ; Binnur PINARBASI ; Kadir DEMIR ; Fatih BESISIK ; Yilmaz CAKALOGLU
Gut and Liver 2013;7(4):458-461
BACKGROUND/AIMS: The aim of this study is to investigate the rate of sustained virologic response (SVR) in chronic hepatitis C patients receiving antiviral treatment. METHODS: The files of patients with chronic hepatitis C treated with interferon+/-ribavirin between 1995 and 2009 were reviewed retrospectively. Six months after the end of treatment, patients with negative hepatitis C virus (HCV)-RNA (<50 IU/mL, as determined by the polymerase chain reaction method) were enrolled in the study. RESULTS: The mean age of 196 patients (89 males) was 46.13+/-11.10 years (range, 17 to 73 years). In biopsies, the mean stage was 1.50+/-0.94; histological activity index was 7.18+/-2.43. In total, 139 patients received pegylated interferon (IFN)+ribavirin, 21 patients received classical IFN+ribavirin, and 36 patients received IFN alone. The HCV genotypes of 138 patients were checked: 77.5% were genotype 1b, and 22.5% were other genotypes. After achievement of SVR, the median follow-up period was 33.5 months (range, 6 to 112 months), and in this period relapse was only detected in two patients (1.02%) at 18 and 48 months after treatment. CONCLUSIONS: In total, 98.9% of patients with SVR in chronic hepatitis C demonstrated truly durable responses over the long-term follow-up period of 3 years; relapsed patients had intermittent or low-grade viremia.
Achievement
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Biopsy
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Follow-Up Studies
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Genotype
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Hepacivirus
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Hepatitis C, Chronic
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Hepatitis, Chronic
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Humans
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Interferons
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Polymerase Chain Reaction
;
Recurrence
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Retrospective Studies
;
Viremia
6.Screening tools for bacteraemia in a selected population of febrile children.
Hayri Levent YILMAZ ; Riza Dincer YILDIZDAS ; Nazan ALPARSLAN ; Kenan OZCAN ; Akgun YAMAN ; Filiz KIBAR
Annals of the Academy of Medicine, Singapore 2008;37(3):192-199
INTRODUCTIONThis is a prospective, observational study. The aims of the study were to determine the rate of bacteraemia in febrile children in Turkey, and to evaluate the usefulness of white blood cell (WBC) count and manual differential counts of peripheral blood smears and a RISK score in predicting bacteraemia among these children.
MATERIALS AND METHODSA total of 377 febrile children aged 3 to 36 months were included in the study. Complete blood cell (CBC) count, manual differential counts and blood cultures were performed in all patients. The main outcome measures used to evaluate the usefulness of the RISK score were sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), odds ratio (OR), posterior probability, areas under receiver operator characteristic curves (AUC) and miss-to-diagnosis ratio (MDR).
RESULTSAmong the patients, 4.4% had bacteraemia and the predominant pathogen was Streptococcus pneumoniae. The Yale Observation Scale scores, percentages of neutrophil and bands, band-neutrophil ratio, absolute neutrophil count and absolute band count were found to be statistically significant predictors of bacteraemia. When the RISK score was 2 or higher, sensitivity was 93.8%, false positive ratio 35.8%, PPV 10.6%, NPV 99.5%, OR 26.2 (95% CI, 3.4 to 200.8), MDR 0.066 and posterior probability value 10%.
CONCLUSIONSWe conclude that determination of the RISK score will significantly decrease unnecessary blood culture sampling, antibiotherapy and hospitalisation among febrile patients aged 3 to 36 months without an identifiable focus of infection.
Bacteremia ; complications ; diagnosis ; drug therapy ; microbiology ; Bacteria ; isolation & purification ; Child ; Child, Preschool ; Fever ; complications ; Humans ; Infant ; Leukocyte Count ; Neutrophils ; Predictive Value of Tests ; ROC Curve ; Risk Assessment ; Sensitivity and Specificity
7.Reduction of Inflammation and Enhancement of Motility after Pancreatic Islet Derived Stem Cell Transplantation Following Spinal Cord Injury
Erdal KARAOZ ; Filiz TEPEKOY ; Irem YILMAZ ; Cansu SUBASI ; Serdar KABATAS
Journal of Korean Neurosurgical Society 2019;62(2):153-165
OBJECTIVE: Spinal cord injury (SCI) is a very serious health problem, usually caused by a trauma and accompanied by elevated levels of inflammation indicators. Stem cell-based therapy is promising some valuable strategies for its functional recovery. Nestin-positive progenitor and/or stem cells (SC) isolated from pancreatic islets (PI) show mesenchymal stem cell (MSC) characteristics. For this reason, we aimed to analyze the effects of rat pancreatic islet derived stem cell (rPI-SC) delivery on functional recovery, as well as the levels of inflammation factors following SCI.METHODS: rPI-SCs were isolated, cultured and their MSC characteristics were determined through flow cytometry and immunofluorescence analysis. The experimental rat population was divided into three groups : 1) laminectomy & trauma, 2) laminectomy & trauma & phosphate-buffered saline (PBS), and 3) laminectomy+trauma+SCs. Green fluorescent protein (GFP) labelled rPI-SCs were transplanted into the injured rat spinal cord. Their motilities were evaluated with Basso, Beattie and Bresnahan (BBB) Score. After 4-weeks, spinal cord sections were analyzed for GFP labeled SCs and stained for vimentin, S100β, brain derived neurotrophic factor (BDNF), 2’,3’-cyclic-nucleotide 3'-phosphodiesterase (CNPase), vascular endothelial growth factor (VEGF) and proinflammatory (interleukin [IL]-6, transforming growth factor [TGF]-β, macrophage inflammatory protein [MIP]-2, myeloperoxidase [MPO]) and anti-inflammatory (IL-1 receptor antagonis) factors.RESULTS: rPI-SCs were revealed to display MSC characteristics and express neural and glial cell markers including BDNF, glial fibrillary acidic protein (GFAP), fibronectin, microtubule associated protein-2a,b (MAP2a,b), β3-tubulin and nestin as well as antiinflammatory prostaglandin E2 receptor, EP3. The BBB scores showed significant motor recovery in group 3. GFP-labelled cells were localized on the injury site. In addition, decreased proinflammatory factor levels and increased intensity of anti-inflammatory factors were determined.CONCLUSION: Transplantation of PI-SCs might be an effective strategy to improve functional recovery following spinal cord trauma.
Animals
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Brain-Derived Neurotrophic Factor
;
Dinoprostone
;
Fibronectins
;
Flow Cytometry
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Fluorescent Antibody Technique
;
Glial Fibrillary Acidic Protein
;
Inflammation
;
Islets of Langerhans
;
Laminectomy
;
Macrophages
;
Mesenchymal Stromal Cells
;
Microtubules
;
Nestin
;
Neuroglia
;
Peroxidase
;
Rats
;
Regeneration
;
Spinal Cord Injuries
;
Spinal Cord
;
Stem Cell Transplantation
;
Stem Cells
;
Transforming Growth Factors
;
Vascular Endothelial Growth Factor A
;
Vimentin
;
Wounds and Injuries
8.Radiation-Induced Ocular Surface Disorders and Retinopathy: Ocular Structures and Radiation Dose-Volume Effect
Ozlem Ozkaya AKAGUNDUZ ; Suzan Guven YILMAZ ; Emin TAVLAYAN ; Mine Esen BARIS ; Filiz AFRASHI ; Mustafa ESASSOLAK
Cancer Research and Treatment 2022;54(2):417-423
Purpose:
This study aimed to evaluate the radiation-induced adverse effects on ocular structures in head and neck cancer patients and investigate the radiation dose-volume effects on the cornea, lacrimal gland, retina, optic nerve and chiasm.
Materials and Methods:
A total of 38 eyes of 19 patients were included in this prospective, cohort study. All patients underwent complete ophthalmological examination in addition to contrast sensitivity, visual field and visual evoked potentials (VEP) tests. Ophthalmological examinations and psychophysical tests were performed in 6th, 12th, 18th, 24th months and in the last visit. The relationship between the ophthalmologic findings, and the radiation doses below and above the cut-off values was evaluated.
Results:
Contrast sensitivity decrease and visual field deterioration were observed in 42% of the patients in the last visit (median 26 months) whereas a prolonged latency and decreased amplitude of P100 wave in VEP was observed in 58% and 33% of the eyes, respectively at 24th month. Totally 16 patients (84.2%) developed dry eye disease and eight of them received radiotherapy below tolerance doses and had mild to moderate dry eye findings. Radiation-induced retinopathy was observed in three of the eyes in eight patients who received radiation above tolerance dose.
Conclusion
Head and neck cancers treated with radiotherapy, resulted in various ophthalmic complications. All patients who are treating with radiotherapy should be evaluated by an ophthalmologist in terms of anterior and posterior segment damage, even if the radiation dose is below the tolerance limit.
9.A New Clinical Tool for Scoliosis Risk Analysis: Scoliosis Tele-Screening Test
Hurriyet Gursel YILMAZ ; Ahsen BÜYÜKASLAN ; Aslihan KUŞVURAN ; Zeynep TURAN ; Filiz TUNA ; Hande TUNC ; Sibel ÖZDOĞAN
Asian Spine Journal 2023;17(4):656-665
Methods:
Researchers developed the Scoliosis Tele-Screening Test (STS-Test), which included drawing-based images of body asymmetries, to assess the scoliosis-associated risk factors. The STS-Test was shared on social networks, allowing the parents to evaluate their children. After test completion, the risk score was generated automatically, and children with medium and high risks were then advised for medical consultation for further evaluation. The test accuracy and consistency between the clinician and parents were also analyzed.
Results:
Of the 865 tested children, 358 (41.4%) consulted clinicians to confirm their STS-Test results. Scoliosis was then confirmed in 91 children (25.4%). The parents were able to detect asymmetry in 50% of the lumbar/thoracolumbar curvatures and 82% of the thoracic curvatures. In addition, the forward bend test revealed favorable agreement between parents and clinicians (r =0.809, p<0.0005). Internal consistency of the esthetic deformities domain in the STS-Test was also excellent (α=0.901). This tool was 94.97% accurate, 83.51% sensitive, and 98.87% specific.
Conclusions
The STS-Test is a new parent-friendly, virtual, cost-effective, result-oriented, and reliable tool for scoliosis screening. It allows parents to actively participate in the early detection of scoliosis by screening their children for the risk of scoliosis periodically without the need to visit the health institution.