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BACKGROUND: Recent studies have investigated the role of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), systemic inflammation index (SII), and prognostic nutritional index (PNI) on prognosis for various malignancies. However, the value of these markers in determining the prognosis for gastrointestinal stromal tumors (GIST) remains controversial. We investigated the effect of NLR, PLR, SII, and PNI on 5-year recurrence-free survival (RFS) in patients with surgically resected GIST. MATERIALS AND METHODS: We retrospectively analyzed patients (n=47) who had undergone surgical resection for primary, localized GIST at a single institution between 2010 and 2021. The patients were divided into two groups according to the recurrence status in the 5-year period as 5-year RFS(+) (patients with no recurrence (n=25) and 5-year RFS(-) (patients with recurrence (n=22) groups. RESULTS: In univariate analyses, Eastern Cooperative Oncology Group Performance Status (ECOG-PS), tumor localization, tumor size, PNI, and risk category were significantly different between the RFS(+) and RFS(-) groups while NLR, PLR, SII were not. Multivariate analyses revealed that only the tumor size (HR =5.485, 95% CI: 0.210-143.266, p=0.016), and PNI (HR= 112.020, 95% CI: 8.755-1433.278, p<0.001) were independent prognostic factors for RFS. The patients with a high PNI (≥46.25) had a higher 5-year RFS rate than the patients with low PNI (<46.25) (95.2% to 19.2%, p<0.001). CONCLUSION: A higher preoperative PNI is an independent positive predictor for 5-year RFS for patients with surgically resected GIST. However, NLR, PLR, and SII have no significant effect. KEY WORDS: GIST, Prognostic Nutritional Index, Prognostic Marker.
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Tumores do Estroma Gastrointestinal , Avaliação Nutricional , Humanos , Prognóstico , Tumores do Estroma Gastrointestinal/cirurgia , Contagem de Linfócitos , Estudos Retrospectivos , Inflamação/patologiaRESUMO
OBJECTIVES: Colorectal carcinomas are the third-most common tumors in the world, and colorectal cancer ranks second in cancer-related deaths. Our aim in this study was to investigate the correlation between programmed cell death ligand 1 (PD-L1) expression and clinicopathologic parameters in colorectal carcinomas and their relationship to the tumor immune microenvironment, epithelial-mesenchymal transition (EMT), and microsatellite instability. We also investigated the predictive and prognostic role of PD-L1. METHODS: One hundred patients with a diagnosis of colorectal adenocarcinoma who did not receive neoadjuvant therapy were included in the study. The relationships among the altered expression of PD-L1; vimentin; E-cadherin; mismatch repair status; and pathologic microenvironmental features, including the presence of tumor budding and CD8-positive tumor infiltrating lymphocytes (TILs), were assessed. RESULTS: Increased PD-L1 expression in tumor cells was associated with increased TILs (P = .013), high histologic grade (P = .011), advanced pathologic T stage (P = .007), lymph node metastasis (P = .002), distant metastasis (P < .001), perineural invasion (P = .009), high bud score (P = .023), EMT (P < .001), and shorter disease-free survival (P = .029). CONCLUSIONS: Overall, PD-L1 expression in colorectal carcinoma tumor cells is a marker of poor prognosis, and the positive correlation detected between EMT status and PD-L1 expression suggests that patients with the mesenchymal phenotype may be more likely to benefit from programmed cell death 1 protein/PD-L1 immunotherapy.
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Adenocarcinoma , Neoplasias Colorretais , Adenocarcinoma/patologia , Antígeno B7-H1/metabolismo , Linfócitos T CD8-Positivos , Caderinas/metabolismo , Neoplasias Colorretais/patologia , Transição Epitelial-Mesenquimal , Humanos , Ligantes , Linfócitos do Interstício Tumoral/patologia , Prognóstico , Receptor de Morte Celular Programada 1/metabolismo , Microambiente Tumoral , Vimentina/metabolismoRESUMO
The aim of this study was to investigate the relationship between tumor budding (TB) and clinicopathologic prognostic criteria in colorectal adenocarcinomas and to discuss the inclusion of the fourth group in the scoring system. A total of 131 cases were included in the study. TB was scored according to the classical 3-tiered scoring system and our proposed 4-tiered scoring system: BD0 (no buds), BD1* (1-4 buds), BD2 (5-9 buds), and BD3 (≥10 buds). Cytokeratin staining was applied to 80 randomly selected cases and TB scoring was re-evaluated. TB was not observed in 31 (23.7%) of 131 cases and was categorized as BD0. Patients with BD0 budding had lower pT category, AJCC stage, tumor grade, less lymph node metastasis, lymphovascular invasion, tumor deposits (p < 0.05), and longer overall survival than BD1* patients (log-Rank p: 0.018). There was significant compatibility between the evaluation of TB with H&E and cytokeratin (kappa: 0.727, p < 0.001). In conclusion, we think it is valuable to add the "BD0" category to the International Tumor Budding Consensus Conference (ITBCC) scores. However, more research with larger cohorts is needed for clinical applicability. H&E staining is sufficient for the assessment of budding, except in conditions such as increased inflammation where the tumor-stroma interface may be obscured.
Assuntos
Adenocarcinoma , Neoplasias Colorretais , Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/patologia , Humanos , Queratinas , Metástase Linfática , Estadiamento de Neoplasias , PrognósticoRESUMO
INTRODUCTION: The aim of this study was to investigate the effect of perineural dexamethasone against intraneural bupivacaine. MATERIAL AND METHODS: Rats were divided into 9 groups with 6 animals in each group; Group 1 (Intraneural saline 600 µL-2ndday), Group 2 (Intraneural saline 600 µL-7th day), Group 3 (Intraneural saline 600 µL + perineural dexamethasone 0.5 mg/kg-2nd day), Group 4 (Intraneural saline 600 µL + perineural dexamethasone 0.5 mg/kg-7th day), Group 5 (Intraneural bupivacaine 10 mg/kg-2nd day), Group 6 (Intranueral bupivacaine 10 mg/kg-7th day), Group 7 (Intraneural bupivacaine 10 mg/kg + perineurald exam ethasone 0.5 mg/kg-2nd day), Group 8 (Intraneural bupivacaine 10 mg/kg + perineural dexamethasone 0.5 mg/kg-7th day), Group 9 (Control group). At the end of the application period, histopathological and immunohistochemical examinations were analyzed. RESULTS AND CONCLUSION: It was observed that caspase 3 levels significantly increased in the 5th and 6th groups compared to the 1st and 2nd groups (p < 0.01). However, in the 7th and 8th groups, these levels were similar with 1st and 2nd groups. While a significant decrease in S 100 levels was detected in group 6 (p < 0.05), a significant increase occurred in Group 8 and reached the same levels as Group 2. According to histopathological evaluation, edema, vacuolization and myelin degeneration were significantly increased in groups 5 and 6 (p < 0.05). However, in the 8th group, the mentioned data showed a significant decrease and reached the same levels as group 2. As a result, perineural dexamethasone was found to have protective effects against intraneural bupivacaine induced sciatic nerve damage.
Assuntos
Anestésicos Locais , Bupivacaína , Dexametasona/uso terapêutico , Injeções/efeitos adversos , Nervo Isquiático/lesões , Anestésicos Locais/efeitos adversos , Animais , Bupivacaína/efeitos adversos , RatosRESUMO
PURPOSE: To evaluate the short-term use of colchicine on preventing ischemia-reperfusion injury after surgery in an experimental animal model. MATERIALS AND METHODS: A total of 40 rats were divided into five groups (n = 8). Sham (Sh), ischemia-reperfusion (I/R), I/R and colchicine-treated for once per-operatively (I/Rc1), I/R and colchicine-treated for 5 days postoperatively (I/Rc5), and I/R and placebo given for 5 days (I/Rp) groups. Testicular torsion was created by rotating the testicle 720o in clockwise direction and held for 3 hours. In group I/Rc1 30 minutes before detorsion, p.o. 1 mg/kg mL infusion of colchicine was given only once. In group I/Rc5, colchicine continued p.o. once daily for five days. Tissue malonyldialdehite (MDA), superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) were measured for evaluating the oxidative stress. Apoptosis levels shown with Caspase-3 staining and mean seminiferous tubular diameter (MSTD), germinal epithelial cell thickness (GECT), and mean testicular biopsy score (MTBS) were used to evaluate the germ cell damage. RESULTS: Decreased protein MDA levels therewithal increased SOD, CAT and GPx levels achieved in I/Rc5 group when compared to I/R group and did not differ from the I/Rp group (p<0.05). MSTD, GECT, and JS were better in I/Rc5 than I/Rp which showed the natural course of I/R damage in testis (p<0.005). Caspase 3 positivity, as an apoptosis indicator, were significantly lower (p<0.05) in I/Rc5 group in comparison with I/R, I/Rc1, and I/Rp groups. CONCLUSION: The usage of colchicine as a complementary treatment after definitive surgery reduce early-onset ischemia-reperfusion damage and diminishes apoptosis.
Assuntos
Colchicina/uso terapêutico , Traumatismo por Reperfusão/etiologia , Traumatismo por Reperfusão/prevenção & controle , Torção do Cordão Espermático/complicações , Testículo/irrigação sanguínea , Animais , Masculino , Distribuição Aleatória , Ratos , Ratos WistarRESUMO
OBJECTIVE: Polycystic ovary syndrome (PCOS) is a serious endocrine disorder. In the present study, we investigated the therapeutic effects of erdosteine in letrozole-induced PCOS in rats. METHODS: Thirty-two Wistar albino female rats were grouped as control group (C), PCOS group (PCOS), PCOS-metformin group (PCOS+MET), and PCOS-erdosteine group (PCOS+Erd). PCOS was induced by administering letrozole; such rats presented with sex hormone disorder, abnormal estrous cycles determined by daily vaginal smear, large cystic follicles, and increasing fasting insulin levels. After induction of PCOS, metformin (500 mg/kg/day) and erdosteine (100 mg/kg/day) were given orally to the treatment groups for 30 days. Serum concentrations of glucose, total cholesterol, low- and high-density lipoprotein, triglyceride, as well as the total oxidant and antioxidant status, oxidative stress index, circulating estrone (E1), estradiol (E2), testosterone, and androstenedione were evaluated. The ovaries were graded histologically. RESULTS: Weights of ovarian tissues (p < 0.05) and the number of atretic follicles (p < 0.001) and cystic follicles (p < 0.01) decreased in the PCOS+Erd group; the corpus luteum number was significantly higher in the PCOS+Erd group (p < 0.01) as compared with the PCOS group. Lipid parameters (total-C, LDL-C, and TG), E1 (estrone), E1/E2 ratio, testosterone, and androstenedione significantly decreased, while HDL-C and E2 (estradiol) significantly increased in the PCOS+Erd group as compared with the PCOS group. Moreover glucose, insulin, and HOMA-IR were reduced with treatment of erdosteine (p > 0.05, p < 0.001, and p < 0.001, respectively). CONCLUSION: It is suggested that erdosteine may be used in the treatment of PCOS as an alternative to metformin. It appears that our findings might be supported by clinical and molecular studies.
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Expectorantes/farmacologia , Síndrome do Ovário Policístico/tratamento farmacológico , Tioglicolatos/farmacologia , Tiofenos/farmacologia , Análise de Variância , Animais , Glicemia , Colesterol/sangue , Modelos Animais de Doenças , Estrona/sangue , Feminino , Hipoglicemiantes/uso terapêutico , Resistência à Insulina , Metformina/uso terapêutico , Ovário/patologia , Estresse Oxidativo/efeitos dos fármacos , Distribuição Aleatória , Ratos , Ratos Wistar , Resultado do Tratamento , Útero/patologiaRESUMO
Methotrexate (MTX) is frequently used in the treatment of several diseases including cancers, rheumatoid arthritis, psoriatic arthritis, systemic lupus erythematosus, and dermatomyositis. Previously, chemotherapeutic agents have been reported to cause permanent azoospermia and infertility in men. Methotrexate has been also shown to damage the seminiferous tubules of the testicles, lower the sperm count, and cause genetic mutations (in DNA) in sperm. In this study, we aimed to investigate the protective effects of alpha lipoic acid (ALA) on MTX-induced testicle damage in a rat model. A total of 40 male Wistar Albino rats were used in this study. The rats were divided into four groups including 10 rats in each. The first group (control group) received only saline intraperitoneal (i.p.); the second group (ALA group) was given ALA 100 mg/kg i.p.; the third group (MTX group) received single dose MTX 20 mg/kg i.p.; and the fourth group (MTX + ALA group) received single dose MTX 20 mg/kg i.p. and ALA 100 mg/kg i.p. Malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), myeloperoxidase (MPO) levels in the testicular tissue and serum testosterone, serum total antioxidant status (TAS) and total oxidant status (TOS) levels were biochemically evaluated. Testicular tissues histopathologically evaluated. In the MTX group, the MDA, TAS and TOS levels were higher, while the SOD, CAT, GPx, MPO and serum testosterone levels decreased. Compared to the MTX group, the MDA, TAS and TOS levels were lower and the SOD, CAT, GPx, MPO and serum testosterone levels increased in the MTX + ALA group. In the histopathological examination, the mean seminiferous tubule length (MSTD), germinal epithelial cell thickness (GECT), and mean testicular biopsy score (MTBS) were found to significantly decrease in the MTX group, compared to the control group. These values were significantly higher in the MTX + ALA group, compared to the MTX group (p < 0.05). In our experimental study, MTX caused severe tissue destruction in testicles by increasing the formation of free oxygen radicals. Based on our study results, we suggest that, as a potent free radical scavenger, ALA can reduce MTX-induced testicular tissue damage thanks to its antioxidant and anti-inflammatory properties.
Assuntos
Metotrexato/efeitos adversos , Substâncias Protetoras/farmacologia , Testículo/lesões , Testículo/patologia , Ácido Tióctico/farmacologia , Animais , Antioxidantes/metabolismo , Catalase/metabolismo , Células Epiteliais/efeitos dos fármacos , Células Epiteliais/metabolismo , Células Epiteliais/patologia , Glutationa Peroxidase/metabolismo , Masculino , Malondialdeído/metabolismo , Oxidantes/sangue , Peroxidase/metabolismo , Ratos Wistar , Túbulos Seminíferos/efeitos dos fármacos , Túbulos Seminíferos/patologia , Espermatogênese/efeitos dos fármacos , Superóxido Dismutase/metabolismo , Testículo/efeitos dos fármacos , Testículo/enzimologia , Testosterona/sangueRESUMO
Methotrexate (MTX) is used in the treatment of certain types of cancers and chronic inflammatory illnesses, although the clinical use of MTX is limited due to its adverse effects, the most common of which are hepatotoxicity and nephrotoxicity. In the present study, we demonstrate the protecting influence of tempol related to oxidative stress in MTX-induced liver toxicity in rats using histopathological and biochemical parameters. The rats were divided into four groups: control group (group 1), tempol group (group 2), MTX group (group 3) and MTXâ¯+â¯tempol group (group 4). The control group (group 1) received physiological saline for 10 days; the tempol group (group 2) received 30â¯mg/kg i.p. for 10 days, the MTX group (group 3) received a single dose of 20â¯mg/kg intraperitoneal (i.p.) on the fourth day of the study, and the MTXâ¯+â¯tempol group (group 4) received a single dose of 20â¯mg/kg i.p. on the fourth day, followed by tempol 30â¯mg/kg i.p. for 10 days. Malondialdehyde (MDA), myeloperoxidase (MPO), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were found to be significantly lower in the MTXâ¯+â¯tempol group then in the MTX group; while superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) levels were found to be higher in the MTXâ¯+â¯tempol group than in the MTX group. Tempol ameliorates vacuolic degeneration, inflammation and necrosis in MTX-treated rats. Our study demonstrates that tempol treatment after MTX administration ameliorates oxidative damage in liver tissue in rats.
Assuntos
Óxidos N-Cíclicos/farmacologia , Fígado/lesões , Metotrexato/efeitos adversos , Animais , Antioxidantes/metabolismo , Caspase 3/metabolismo , Catalase/metabolismo , Feminino , Glutationa Peroxidase/metabolismo , Fígado/efeitos dos fármacos , Fígado/enzimologia , Fígado/patologia , Malondialdeído/metabolismo , Oxidantes/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Ratos Wistar , Marcadores de Spin , Superóxido Dismutase/metabolismo , Proteína X Associada a bcl-2/metabolismoRESUMO
INTRODUCTION: Colorectal cancer is still one of the main causes of cancer death in the world. There is a continous need for novel biomarkers for diagnose, treatment modalities and follow-up. Cyclin E and p57KIP2 as the positive and negative regulators of cell cycle seem to be an important target for investigations. MATERIALS AND METHODS: In a retrospective setting, primary colorectal adenocarcinoma cases examined in Mustafa Kemal University, School of Medicine, Pathology Department between 2008-2015 were reviewed. Immunohistochemical expressions of cyclin E and p57KIP2 in 80 pairs of colorectal carcinoma and adjacent normal mucosal tissues were evaluated and the findings were compared with clinicopathological parameters and survival time. RESULTS: There were no statistically significant difference between two groups both in cyclin E and p57KIP2 stained tissues (P>0.05). There were 40 (50%) patients in high-expression group and 40 (50%) patients in low-expression group for cyclin E. p57KIP2 was negative in 55 (68.75%) patients and positive in 25 (31.75%) patients. There were no statistically significant relation between p57KIP2 and cyclin E expressions with clinicopathologic parameters defined as age, gender, lymphovascular invasion, perineural invasion, depth of invasion, nodal involvement, emergency in operation, perforation before operation and overall survival except that there was significant relation between p57KIP2 expression and histological grade (P=0.012). CONCLUSIONS: Immunohistochemical studies of cyclin E and p57KIP2 should be performed with larger series of patients supported by more detailed technical research methods to be candidates as predictive markers for treatment modalities and prognostic factors.
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OBJECTIVE: The aim of this experimental study was to compare the dose-related effect of topical thymoquinone (TQ) with other topical agents used in the management of acute otitis externa (AOE) in a rat model. MATERIALS AND METHODS: Forty-eight male Wistar albino rats were divided into six groups each with eight rats per group. Group I was the control group with no external otitis, whereas external otitis were created in the other five groups (study groups). Dexamethasone, 0.1% TQ, 0.4% TQ, ciprofloxacin, and 0.9% saline (NaCl) drops was applied once daily in Groups II-VI, respectively. The treatment was administered regularly for 10 days. Pathologic and microbiologic evaluation were performed. Pathologically, the thicknesses of the stroma and the epithelium in the external auditory canal (EAC) were measured using an occulometer. Edema in the stroma, density of inflammatory cells and blood vessels, presence of fibroblasts, and changes in collagen fibers in the EAC were evaluated in five different areas to obtain the area of highest concentration and classified into four grades (0=no change, 1=mild, 2=moderate, 3=severe). RESULTS: The higher concentration of TQ (0.4%) was more effective than dexamethasone and 0.1% TQ with respect to antibacterial and the anti-inflammatory properties. CONCLUSION: TQ, particularly at a concentration of 0.4%, may be considered for topical application alone in the treatment of AOE, without any requirement for a combined treatment.
Assuntos
Benzoquinonas/uso terapêutico , Meato Acústico Externo/efeitos dos fármacos , Otite Externa/tratamento farmacológico , Doença Aguda , Administração Tópica , Animais , Benzoquinonas/administração & dosagem , Dexametasona/administração & dosagem , Dexametasona/uso terapêutico , Modelos Animais de Doenças , Meato Acústico Externo/patologia , Glucocorticoides/uso terapêutico , Masculino , Otite Externa/patologia , Ratos , Ratos Wistar , Resultado do TratamentoRESUMO
To investigate the antioxidant and anti-inflammatory effects of alpha-lipoic acid (ALA) in the treatment of endometriosis in an experimental rat model by evaluating biochemical and histopathologic parameters. Experimental endometriosis was induced by the peritoneal implantation of autologous endometrial tissue. The rats were randomly divided into two groups with eight rats each. Group I was intraperitoneally administered ALA 100 mg/kg/day for 14 days. Group II was intraperitoneally administered saline solution at the same dosage and over the same period. Endometrial implant volume was measured in both groups both pre- and post-treatment. Tumor necrosis factor alpha (TNF-α) was measured in peritoneal fluid. Total antioxidant status (TAS), total oxidant status (TOS), and oxidative stress index (OSI) were assessed in serum. The implants were histopathologically evaluated. In the ALA group, the serum TOS and OSI levels, the endometrial implant volumes, the TNF-α levels in serum and peritoneal fluid, and the histopathologic scores were significantly lower compared to the control group (P < 0.05). Alpha-lipoic acid may have a therapeutic potential in the treatment of endometriosis due to its antioxidant and anti-inflammatory effects.
Assuntos
Antioxidantes/uso terapêutico , Autoenxertos/efeitos dos fármacos , Modelos Animais de Doenças , Endometriose/tratamento farmacológico , Endométrio/efeitos dos fármacos , Ácido Tióctico/uso terapêutico , Animais , Antioxidantes/farmacologia , Autoenxertos/patologia , Endometriose/etiologia , Endometriose/patologia , Endométrio/patologia , Feminino , Estresse Oxidativo/efeitos dos fármacos , Estresse Oxidativo/fisiologia , Ratos , Ratos Wistar , Ácido Tióctico/farmacologia , Resultado do TratamentoRESUMO
To determine whether the possible oxidative effect of methotrexate (Mtx) on ovary and to evaluate the effectiveness of alpha lipoic acid (ALA), which may be useful in many oxidative stress models. Thirty-two female Wistar-albino rats were randomly divided into four groups; control group, alpha lipoic acid group (ALA 100 mg/kg, 10 days), multiple dose Mtx group (Mtx 1 mg/kg 1, 3, 5, 7 days) and Mtx and ALA group (Mtx 1 mg/kg 1, 3, 5, 7 days and ALA 100 mg/kg, 10 days). Serum total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI), tumor necrosis factor-alpha (TNF-α), tissue malondialdehyde (MDA) and activities of glutathione peroxidase (GSH-Px) and catalase (CAT) and anti-Mullerian hormone (AMH) and total ovarian follicle count were evaluated. Mtx administration caused a significant decrease in TAS, a significant increase in TOS and OSI, a significant increase in MDA levels and a decrease in GSH-Px and CAT activity. Moreover the proinflammatory cytokine (TNF-α) was increased in the Mtx group. And AMH values and total follicle count were significantly decreased in Mtx group. However, ALA treatment reversed biochemical results and AMH levels and total follicle count. Alpha lipoic acid ameliorates methotrexate induced oxidative damage of ovarian in rats.
Assuntos
Antioxidantes/uso terapêutico , Antagonistas do Ácido Fólico/efeitos adversos , Infertilidade Feminina/prevenção & controle , Metotrexato/efeitos adversos , Reserva Ovariana/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Ácido Tióctico/uso terapêutico , Animais , Anti-Inflamatórios não Esteroides/uso terapêutico , Hormônio Antimülleriano/sangue , Antimetabólitos Antineoplásicos/administração & dosagem , Antimetabólitos Antineoplásicos/efeitos adversos , Biomarcadores/sangue , Suplementos Nutricionais , Feminino , Antagonistas do Ácido Fólico/administração & dosagem , Infertilidade Feminina/induzido quimicamente , Infertilidade Feminina/metabolismo , Infertilidade Feminina/patologia , Peroxidação de Lipídeos/efeitos dos fármacos , Metotrexato/administração & dosagem , Inibidores da Síntese de Ácido Nucleico/administração & dosagem , Inibidores da Síntese de Ácido Nucleico/efeitos adversos , Ovário/efeitos dos fármacos , Ovário/imunologia , Ovário/metabolismo , Ovário/patologia , Distribuição Aleatória , Ratos Wistar , Fator de Necrose Tumoral alfa/sangueRESUMO
OBJECTIVE: Dexpanthenol (Dxp), antioxidant and anti-inflammatory agent, plays an important role in the repair systems against oxidative stress and inflammatory response. The objective of this study is to determine the effect of Dxp on experimental endometriosis model. STUDY DESIGN: A prospective experimental study was conducted in Experimental Animal Laboratory of Mustafa Kemal University, Hatay. Twenty nonpregnant female Wistar albino rats, in which experimental model of endometriosis was surgically induced, were randomly divided into 2 groups. Group 1 was administered 500 mg/kg/d Dxp intraperitoneally for 14 days, and group 2 was given the same amount of saline solution. After 2 weeks of medication, the rats were killed and implant volumes, histopathologic scores; and levels of serum total antioxidant status, total oxidant status (TOS), and oxidative stress index (OSI) were evaluated. Plasma and peritoneal fluid levels of tumor necrosis factor α (TNF-α) were analyzed. RESULTS: The endometriotic implant volumes, histopathologic scores, and serum TOS and OSI values were significantly decreased ( P < .05) in the Dxp group compared to the control group. Plasma and peritoneal fluid TNF-α levels were significantly decreased ( P < .05) in the Dxp group compared to the control group. CONCLUSION: Dexpanthenol has free radical scavenger effects, and antioxidant properties has significantly regressed endometriotic implant volumes, histopathologic scores, and serum TOS and OSI values. Serum and peritoneal fluid TNF-α levels were significantly decreased in the Dxp group. So Dxp decreased oxidative stress.
Assuntos
Anti-Inflamatórios/uso terapêutico , Endometriose/metabolismo , Inflamação/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ácido Pantotênico/análogos & derivados , Substâncias Protetoras/uso terapêutico , Animais , Anti-Inflamatórios/farmacologia , Líquido Ascítico/metabolismo , Modelos Animais de Doenças , Feminino , Ácido Pantotênico/farmacologia , Ácido Pantotênico/uso terapêutico , Substâncias Protetoras/farmacologia , Ratos , Ratos Wistar , Espécies Reativas de Oxigênio/metabolismo , Fator de Necrose Tumoral alfa/metabolismoRESUMO
OBJECTIVE: YKL-40 is a secreted glycoprotein and has been implicated in the proliferation and differentiation of malignant cells, extracellular tissue remodelling, neovascularisation, inhibition of cancer cell apoptosis and stimulation of tumour-associated fibroblasts. The purpose of this study was to evaluate YKL-40 tissue expression in extravillous trophoblast invasion and its possible implication in placenta creta. METHODS: A total of 35 placenta creta cases and six control cases were included in the study, of which eight cases were placenta accreta, 12 were increta and 15 were percreta. Histological YKL-40 staining was scored in tissue as weak (1), medium (2) and strong (3). RESULTS: YKL-40 immunoreactivity intensity in the percreta group was significantly higher compared to the increta and accreta groups (2.47±0.74, 1.33±0.49 and 1.37±0.52, respectively; P=0.000). YKL-40 immunoreactivity intensity was positively correlated with creta (r=0.6; P=0.000), depth of invasion (r=0.49; P=0.003) and depth of invasion to full thickness ratio (r=0.58; P=0.000). CONCLUSION: This study demonstrated that YKL-40 is strongly expressed in placenta percreta and is correlated with extravillous trophoblast invasion. These findings may be informative for understanding the pathophysiology of placenta creta.
Assuntos
Proteína 1 Semelhante à Quitinase-3/metabolismo , Placenta Acreta/metabolismo , Adulto , Estudos de Casos e Controles , Feminino , Humanos , GravidezAssuntos
Neoplasias Faciais/complicações , Neoplasias Faciais/diagnóstico , Leishmaniose Mucocutânea/complicações , Leishmaniose Mucocutânea/diagnóstico , Face/patologia , Neoplasias Faciais/tratamento farmacológico , Humanos , Injeções Intramusculares , Leishmaniose Mucocutânea/tratamento farmacológico , Masculino , Meglumina/administração & dosagem , Antimoniato de Meglumina , Pessoa de Meia-Idade , Compostos Organometálicos/administração & dosagemRESUMO
PURPOSE: The aim of this study is to evaluate the utility of intravaginal ultrasound gel for the staging of cervical carcinoma on magnetic resonance imaging (MRI) and to confirm the results with pathological staging. METHODS: Nine patients were included in the study. T2-weighted images were compared without and with vaginal gel (VG). RESULTS: Five patients were evaluated as overstaged on MRI without VG. After VG, the results were compatible with the pathological stages in all patients. CONCLUSIONS: We suggest that this technique is easy, well tolerated, and effective, and it increases the accuracy rate of MRI staging in early cervical cancer.
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Colo do Útero/diagnóstico por imagem , Géis/normas , Imageamento por Ressonância Magnética/métodos , Estadiamento de Neoplasias , Neoplasias do Colo do Útero/diagnóstico por imagem , Vagina/diagnóstico por imagem , Adulto , Colo do Útero/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Ultrassonografia/métodos , Neoplasias do Colo do Útero/patologiaRESUMO
Leiomyoma is a type of benign smooth muscle neoplasm that is a common neoplasm of the uterus and gastrointestinal tract but rarely affects the head and neck region and is especially unlikely to affect the oral cavity. The diagnosis of leiomyoma is mainly determined by histopathological studies due to variation in its clinical appearance and symptoms. In the present paper we report two rare cases of gingival angioleiomyoma in the posterior maxilla and mandible. After total excision, hematoxylin-eosin and smooth muscle actin staining confirmed the diagnosis of angioleimyoma.
RESUMO
The aim of this study was to determine the effect of ursodeoxycholic acid (UDCA) treatment on a polycystic ovary syndrome (PCOS) rat model. Thirty-two female Wistar-Albino rats were randomly divided into four groups as follows - group 1: sham group (n: 8), group 2: letrozole-induced PCOS group (n: 8), group 3: letrozole-induced PCOS plus metformin-treated (500 mg/kg) group (n: 8) and group 4: letrozole-induced PCOS plus UDCA (150 mg/kg)-treated group (n: 8). Histopathologic examination of the ovaries, circulating estrone (E1), estradiol (E2), testosterone, androstenedione, glucose, insulin and lipid profiles were evaluated. Histopathologic examination results revealed that groups 3 and 4 had significantly lower cystic and atretic follicles compared to group 2. Besides, group 4 had significantly higher antral follicles than group 2 (8.5 ± 2.9 versus 5.4 ± 1.1; p: 0.001). Furthermore, total testosterone (4.9 ± 2.8 versus 8.8 ± 2.9; p= 0.004) and insulin levels were significantly lower in group 4 compared to group 2 (1.7 ± 0.08 versus 2.1 ± 0.5; p = 0.02). However, lipid parameters, E1, E2, glucose and HOMA-IR were comparable between the groups. Our study results demonstrated that UDCA therapy improves ovarian morphology and decreases total testosterone and insulin levels.
Assuntos
Colagogos e Coleréticos/farmacologia , Ovário/efeitos dos fármacos , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/tratamento farmacológico , Ácido Ursodesoxicólico/farmacologia , Animais , Colagogos e Coleréticos/administração & dosagem , Modelos Animais de Doenças , Feminino , Ratos , Ratos Wistar , Ácido Ursodesoxicólico/administração & dosagemRESUMO
PURPOSE: To investigate whether there is any therapeutic effect of colchicine on a rat model of polycystic ovary syndrome (PCOS). METHODS: Twenty-two Wistar-Albino rats were randomly assigned into four with 8 rats in each group: control group; PCOS only group; PCOS-metformin group and PCOS-colchicine group. PCOS was induced by gavage with letrozole once daily at the concentration of 1 mg/kg orally with 21 consecutive days. After PCOS model assessment, PCOS-metformin group was received metformin orally with 500 mg/kg and PCOS-colchicine group was received colchicine orally with 1 mg/kg for the 35 day. Histopathology of ovaries, circulating estrone (E1), estradiol (E2), total testosterone, androstenedione and c-reactive protein (CRP) levels were evaluated. RESULTS: cystic and atretic follicle number was significantly decreased, but CRP and hormone parameters were not significantly changed with colchicine treatment. CONCLUSION: Colchicine has provided histopathological improvement compared with metformin in PCOS rat model.