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OBJECTIVE: To determine the causes of a relatively high infant mortality rate in a Turkish city compared to the nationwide rate. METHODS: The cross-sectional study was conducted at Gaziantep from January to March 2014, and comprised a representative sample of infant deaths that occurred between January and December 2013 in the city of Gaziantep, Turkey. Mothers of the deceased infants were interviewed using a structured questionnaire. Data was analysed using SPSS 22. RESULTS: Of the 556 deaths, 114(20.5%) cases comprised the sample and their mothers formed the study universe. Of them, 3(2.6%) were aged below 18 years; 22(19.3%) were over 35 years; 20(17.5%) had 4 or more children, and 40(35.0%) had an interval of less than 2 years between two pregnancies. Consanguineous marriage was the case with 49(43.0%) mothers. Overall, 111(97.4%) mothers had received prenatal care. Of the births, 66(57.9%) had occurred in private hospitals and 41(36%) in state hospitals. A total of 77(67.5%) infants had been delivered by caesarean section. The most frequent causes of mortality were congenital abnormalities 33(28.9%), prematurity 29(25.4%), respiratory distress syndrome 24(21.1%) and congenital heart diseases 14(12.3%). CONCLUSIONS: A high rate of consanguineous marriages seemed to be one of the most important causes of the high infant death rate in Gaziantep compared to the rest of Turkey..
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Anormalidades Congênitas/mortalidade , Mortalidade Infantil , Doenças do Recém-Nascido/mortalidade , Adolescente , Adulto , Consanguinidade , Estudos Transversais , Humanos , Lactente , Recém-Nascido , Mães/estatística & dados numéricos , Cuidado Pré-Natal/estatística & dados numéricos , Turquia/epidemiologia , Adulto JovemRESUMO
Purpose: Pterygium, one of the most common ocular surface diseases, is characterized by inflammatory infiltrates, proliferation, angiogenesis, fibrosis, and extracellular matrix breakdown. The objective of this study was to elucidate the levels of the intercellular adhesion molecule (ICAM)-2, and ICAM-3 gene and protein expressions in pterygium. Methods: A total of 59 patients with pterygium were included in this study. mRNA from pterygial and conjunctival autograft tissues were extracted, and real-time polymerase chain reaction on the BioMark HD dynamic array system was performed for the ICAM-2 and ICAM-3 gene expressions. ICAM-2 and ICAM-3 protein expressions using western blot and immunohistochemistry methods were also investigated in pterygial and conjunctival autograft tissues. Results: ICAM-2 and ICAM-3 gene expressions were markedly augmented in pterygial tissues (P = 0.0018 and P = 0.0023, respectively). Significant increases in protein expressions in pterygial tissues were also detected for ICAM-2 and ICAM-3 (P = 0.0116 and P = 0.0252, respectively). In the immunohistochemical studies, there was a marked increase in ICAM-3 (P = 0.0152), but not in ICAM-2 (P = 0.1041), protein expressions in pterygial tissues. Significant positive correlations between pterygia grading with ICAM-2 protein expression (P = 0.0398) and ICAM-3 immunohistochemical scores (P = 0.0138) were observed. Conclusion: These results demonstrate, for the first time, the expressions of ICAM-2 and ICAM-3 in the pterygium. These findings may help to understand the signal transduction mechanisms in the pterygium formation and provide a new therapy strategy for pterygium treatment.
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Antígenos CD/genética , Moléculas de Adesão Celular/genética , Regulação da Expressão Gênica/fisiologia , Pterígio/metabolismo , Adulto , Idoso , Antígenos CD/metabolismo , Biomarcadores/metabolismo , Western Blotting , Moléculas de Adesão Celular/metabolismo , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Adulto JovemRESUMO
OBJECTIVES: To compare immunohistochemical detection of Human chorionic gonadotropin (hCG) expression in paraffin embedded tissue of squamous cell carcinomas (SCC) and high grade squamous intraepithelial lesions (HSIL). METHODS: The samples in this retrospective study were obtained from the archives of the Pathology Department at Gaziantep University, Gaziantep, Turkey, over the period from January 2012 to September 2016. The study group consisted of 55 cases of SCC and 45 cases of HSIL. Tissue expression of hCG was detected by specific binding of anti-hCG antibody using an automated immunohistochemistry staining device. The categorical variables of intensity and coverage were analyzed statistically using Pearson Chi-Square test. RESULTS: High grade squamous cell lesions cases showed weak (84.4%, n=38/45) to no (15.6%, n=7/45) staining for hCG. None of the HSIL cases showed strong positivity. Strong positivity for hCG was detected in 90.9% (n=50/55) of SCC cases. CONCLUSION: Our study supports the association of ectopic hCG expression in cancer pathogenesis by demonstrating strong hCG immunoreactivity only in SCC cases. This finding can be helpful in supporting the diagnosis of invasive carcinoma in small or fragmented biopsies, which can on their own be confusing for the pathologists.
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Biomarcadores Tumorais/metabolismo , Carcinoma de Células Escamosas/diagnóstico , Gonadotropina Coriônica/metabolismo , Neoplasias do Colo do Útero/diagnóstico , Biópsia , Carcinoma de Células Escamosas/patologia , Gonadotropina Coriônica/imunologia , Feminino , Humanos , Imuno-Histoquímica , Inclusão em Parafina , Estudos Retrospectivos , Lesões Intraepiteliais Escamosas Cervicais/diagnóstico , Lesões Intraepiteliais Escamosas Cervicais/patologia , Turquia , Neoplasias do Colo do Útero/patologiaRESUMO
Cancer is a consequence of accumulation of genetic and epigenetic alterations in the cell which can lead to activation of oncogenes or inactivation of tumor suppressor genes (TSG). Since members of ING family were discovered as TSGs in different cancer types, it was aimed to analyze the chromosome 13q33-34 region, ING1 and p53 genes in bladder cancer. 30 paired normal and tumor tissues were investigated in terms of microdeletion of chromosome 13q33-34 region, ING1 expression and mutation status of ING1 and p53 genes. Because there is no data available about the transcription factors which bind to ING1 promoter, the promoter sequence was analyzed via Genomatix-MatInspector and TFSEARCH softwares. Used DS markers were D13S285, D13S1315, D13S796, D13S278, D13S158, and D13S779 where loss of heterozygosity (LOH) results were as 23.3, 20, 6.7, 3.3, 6.7, and 0 %, respectively. The highest LOH scores were obtained with markers D13S285 and D13S1315 which are flanking the ING1. Seven of 30 cases showed alteration in expression (p > 0.05). However, no mutation was detected in the exons of ING1. One patient showed a two-nucleotide deletion in p53 gene. However no significant TSG activity of ING1 was observed while higher activity was reported in different cancer types. As for the LOH data 13q33-34 region may contain different candidate TSGs like COL4A1, COL4A2 and SOX1. As a result of computational promoter analysis, some factors like ABL, E2F, HIF1, SOX, P53, BPTF, NRSF, c-Rel and c-ETS were associated with the promoter region. Molecular analysis of ING1 promoter warrants further analysis.
Assuntos
Carcinoma/genética , Cromossomos Humanos Par 13 , Genes p53 , Peptídeos e Proteínas de Sinalização Intracelular/genética , Perda de Heterozigosidade , Proteínas Nucleares/genética , Proteínas Supressoras de Tumor/genética , Neoplasias da Bexiga Urinária/genética , Idoso , Idoso de 80 Anos ou mais , Sequência de Bases , Sítios de Ligação , Análise por Conglomerados , Análise Mutacional de DNA , Feminino , Expressão Gênica , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Proteína 1 Inibidora do Crescimento , Masculino , Repetições de Microssatélites , Pessoa de Meia-Idade , Dados de Sequência Molecular , Mutação , Mapeamento Físico do Cromossomo , Polimorfismo de Nucleotídeo Único , Regiões Promotoras Genéticas , Elementos de RespostaRESUMO
BACKGROUND: The Rho proteins and Rho-kinase (ROCK) enzymes are responsible for signal transduction, and cause cell permeability, contractility, differentiation, migration, proliferation or apoptosis depending on cell types. All of these functions are vital for cancer initiation and progression. In this study, the preventive and protective effects of a selective ROCK inhibitor Y-27632 against Ehrlich ascites carcinoma in Swiss albino mice were investigated. METHODS: Adult male albino mice were divided into five equal groups, and Y-27632 (0.1, 1, and 10 mg/kg) was given to groups as two steps; before (pre-carcinoma) and after inoculation of carcinoma cell suspensions (post-carcinoma). At the end of the experiments (at day 15), cardiac blood samples, the ascitic fluid, and intestinal specimens were collected for histopathology and biochemical investigation. RESULTS: Significant decreases in the body weight and immunostaining scores in small and large intestine for ROCK2, preservation of serum glutathione (GSH) levels, and an increase in tumor level of nitric oxide were recorded in groups pretreated with Y-27632. However, treatment with Y-27632 after tumor inoculation did not affect body weight and ROCK2 immunostaining scores, increased serum MDA levels, and decreased GSH levels. CONCLUSIONS: This is the first study on the effectiveness of Y-27632 in this experimental tumor model. Our findings provided direct evidence for ROCK involvement in tumor development. These data suggest that pretreatment with Y-27632 has a protective effect against tumor formation.
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Amidas/uso terapêutico , Antineoplásicos/uso terapêutico , Carcinoma de Ehrlich/tratamento farmacológico , Piridinas/uso terapêutico , Quinases Associadas a rho/antagonistas & inibidores , Animais , Peso Corporal/efeitos dos fármacos , Carcinoma de Ehrlich/patologia , Sobrevivência Celular/efeitos dos fármacos , Glutationa/metabolismo , Intestinos/patologia , Masculino , Malondialdeído/sangue , Camundongos , Quinases Associadas a rho/análise , Quinases Associadas a rho/fisiologiaRESUMO
AIMS: To demonstrate the effects of intravesical ozone treatment on inflammation and epithelial cell damage in chemical cystitis animal model. MATERIALS AND METHODS: A total of 30 New Zealand rabbits were divided into six groups. Cystitis was conducted with transurethral intravesical hydrochloric acid instillation on the subjects in Groups IA, IB, IIA, and IIB. Then, Group IA-IB subjects were transurethrally administered intravesical ozone therapy twice a week, while Group IIA-IIB subjects were only given intravesical isotonic NaCl instillation. Group IIIA-IIIB subjects were administered intravesical isotonic NaCl instillation without conducting chemical cystitis in order to create the same stress. Treatment schemes of all groups were arranged in the same manner. Following a 3-week (early period) and 6-week (late period) therapy, the rabbits were sacrificed and histopathologic investigations were carried out in order to demonstrate changes in the urinary bladder. RESULTS: In our study, we observed that the basal membrane and mucosal integrity were maintained, inflammatory cells were suppressed in Group IA-IB (Early and late period), which received ozone therapy. However, it was also observed that mucosal integrity was spoiled, numerous inflammatory cells were accumulated in Group IIA-IIB, which was administered isotonic NaCl. CONCLUSION: Due to its low cost and minimal side effects; ozone therapy could be a new therapeutic approach in the treatment of interstitial cystitis.
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OBJECTIVES: To evaluate hypoxia-inducible factor 1 subunit α (HIF-1α) expression during the performance of extracorporeal shock wave lithotripsy (ESWL) and to investigate the effects of pentoxyphylline on HIF-1α expression. METHODS: One hundred New Zealand Albino rabbit were used in the study divided in 5 groups. There were 20 rabbits in each group. The groups were divided in two parts: early (7 days) and late period (14 days) according to follow up duration. Immunohistochemical analyses were performed using nuclear staining to show HIF-1α expression in rabbit renal tissue sample. RESULTS: HIF-1α expression was higher in rabbits undergoing ESWL (group 4). In the hyperoxaluria group taking pentoxyphylline before ESWL (group 5), HIF-1α expression was lower in both early and late period subgroups (p < 0.05) CONCLUSION: In this study we evaluated HIF-1α expression and showed that ESWL may cause renal cell injury. Our results suggest that pentoxyphylline, as a circulatory regulator agent, may prevent renal cell injury induced by ESWL.
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Hiperoxalúria/etiologia , Subunidade alfa do Fator 1 Induzível por Hipóxia/biossíntese , Túbulos Renais/efeitos dos fármacos , Litotripsia/efeitos adversos , Pentoxifilina/farmacologia , Vasodilatadores/farmacologia , Animais , Rim/metabolismo , Túbulos Renais/metabolismo , CoelhosRESUMO
The adhesion molecules play a major role in inflammation as well as in neoplastic diseases. The aim of this study is to evaluate the expressions of the adhesion molecules, intercellular adhesion molecule 1 (ICAM-1), ICAM-2, and ICAM-3, in Barrett's esophagus, recognized as a premalign lesion for esophageal cancer and related to inflammation. Eighteen patients with Barrett's esophagus according to endoscopy and 25 volunteers without Barrett's esophagus disease were included in the study. Tissue samples were supplied by biopsy and used for both gene expression and immunohistochemical analysis. The significance of the differences between the two groups was assessed by Student's t test. The ICAM-1 expression level was fivefold higher in the patient group compared with that of the control. There was an increase in the serum level of ICAM-1 in patients compared to that of the controls, but this increase was not significant. ICAM-2 levels were also increased in the patient group, but it was not significant. There was no difference between controls and patients in ICAM-3 levels. Significantly higher levels of ICAM-1 gene expression make us think that ICAM-1 may play an important role in Barrett's esophagus. We think that more studies, with larger patient groups and preferably detailed histopathological and clinical evaluations, are needed to explain the severity of ICAM-1, ICAM-2, and ICAM-3 molecules in Barrett's esophagus.
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Antígenos CD/genética , Esôfago de Barrett/patologia , Moléculas de Adesão Celular/genética , Molécula 1 de Adesão Intercelular/genética , Antígenos CD/sangue , Esôfago de Barrett/metabolismo , Moléculas de Adesão Celular/sangue , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Molécula 1 de Adesão Intercelular/sangue , Molécula 1 de Adesão Intercelular/fisiologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase em Tempo RealRESUMO
A subset of renal cell carcinoma (RCC) patients has been shown to respond to anti-EGFR therapy. As KRAS and BRAF mutations are associated with poor response to anti-EGFR therapy in some cancers, it has been suggested that screening for KRAS and BRAF mutations in RCC may be a promising strategy to identify patients who might respond to EGFR-targeted therapy. The aim of this study was to investigate the mutation status of EGFR, KRAS and BRAF in RCC patients. Renal tumors and normal renal samples from forty-eight patients who underwent radical or partial nephrectomy for kidney cancer were used in this study. Histological classification of the tumors was performed according to International Union against Cancer (UICC) / American Joint Committee on Cancer (AJCC) classification. Seventeen patients (48%) had clear-cell RCC, 7 (20%) had chromophobe RCC, and 11 patients (32%) had papillary RCC. DNA isolated from the samples was subjected to melting curve mutation analysis for EGFR, BRAF and KRAS using ABI-3130 DNA sequencer. DNA sequencing analysis of RCC samples, when compared with morphologically normal matched regions, did not show any exon mutations. Our results do not support the notion that EGFR, KRAS and BRAF might be mutated in RCC.
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PURPOSE: To reveal the possible role of mycoplasmas in the etiopathogenesis of prostate cancer. METHODS: In the study, prostate biopsy was performed on 62 patients with an abnormal digital rectal examination and/or elevated PSA. The patients' age was between 62 and 77 (mean 65.4 years) years. Thirty-one patients had adenocarcinoma of the prostate histopathologically (group 1). From these patients, the specimens were divided into two subgroups as specimens with malignant findings (group 1A) and specimens with benign findings (group 1B). The control group consisted of 31 patients with benign prostatic hyperplasia (group 2). In the specimens, the presence of mycoplasma DNA was investigated by the polymerase chain reaction method. RESULTS: The mycoplasma DNA was found to be positive in 11 (35.4 %) patients in group 1A and in 4 (12.9 %) patients in group 1B. There was no mycoplasma DNA in the patients in group 2. The differences between group 1A and group 1B, and between group 1A and group 2 were statistically significant (p values, respectively, 0.006 and 0.0001). CONCLUSIONS: Our data supported the thesis that mycoplasma infections play a role in the etiopathogenesis of the prostate cancer.
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Adenocarcinoma/microbiologia , Infecções por Mycoplasma/complicações , Mycoplasma/isolamento & purificação , Neoplasias da Próstata/microbiologia , Adenocarcinoma/sangue , Adenocarcinoma/patologia , Idoso , DNA Bacteriano/isolamento & purificação , Exame Retal Digital , Humanos , Masculino , Pessoa de Meia-Idade , Próstata/microbiologia , Próstata/patologia , Antígeno Prostático Específico/sangue , Hiperplasia Prostática/microbiologia , Neoplasias da Próstata/sangue , Neoplasias da Próstata/patologiaRESUMO
OBJECTIVE: To demonstrate the effects of intravesical dexpanthenol use on bladder histology and lipid peroxidation in a chemical cystitis animal model. METHODS: Thirty-five New Zealand rabbits were divided into 3 groups. Cystitis was conducted with transurethral intravesical hydrochloric acid instillation on the subjects in groups I and II. Then, Group I subjects were transurethrally administered intravesical dexpanthenol therapy twice a week, Group II subjects were given only intravesical isotonic NaCl instillation, and Group III subjects were administered intravesical isotonic NaCl instillation without conducting chemical cystitis to create the same stress. Treatment schemes of all groups were arranged in the same manner. After 6-week therapy, the rabbits were sacrificed and histopathologic investigations were carried out to demonstrate changes in the urinary bladder. Serum and tissue malondialdehyde (MDA) values were examined to investigate the effect of dexpanthenol on lipid peroxidation. RESULTS: We observed that the basal membrane and mucosal integrity were maintained, inflammatory cells were suppressed, and MDA levels decreased in group I, which received dexpanthenol therapy. However, it was also observed that mucosal integrity was spoiled, numerous inflammatory cells were accumulated, and MDA levels were significantly increased in group II, which was administered isotonic NaCl. CONCLUSION: In light of our findings, intravesical dexpanthenol therapy could be a new therapeutic approach in the treatment of interstitial cystitis because of its low cost and acceptable side effects.
Assuntos
Cistite Intersticial/tratamento farmacológico , Cistite Intersticial/patologia , Malondialdeído/metabolismo , Ácido Pantotênico/análogos & derivados , Complexo Vitamínico B/uso terapêutico , Administração Intravesical , Animais , Cistite Intersticial/induzido quimicamente , Modelos Animais de Doenças , Feminino , Ácido Clorídrico , Peroxidação de Lipídeos/efeitos dos fármacos , Malondialdeído/sangue , Ácido Pantotênico/farmacologia , Ácido Pantotênico/uso terapêutico , Coelhos , Estatísticas não Paramétricas , Complexo Vitamínico B/farmacologiaRESUMO
Dubowitz syndrome was first described in 1965 by the English physician Dr. Victor Dubowitz. This genetic disorder causes growth retardation both before and after birth. It is primarily diagnosed through the distinctive facial features of affected individuals, including a small triangular-shaped face with a high forehead and wide-set, slitted eyes. The main method of diagnosis is through identification of facial phenotype. Esophageal mass biopsy revealed squamous cell carcinoma type. Both malignancy and IgA deficiency have been reported literature in patients with Dubowitz syndrome. However, Esophagus cancer has not been reported among the malignant tumors. Herein, we reported a patient with Dubowitz syndrome, IgA deficiency and Esophagus cancer.
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Carcinoma de Células Escamosas/complicações , Eczema/complicações , Neoplasias Esofágicas/complicações , Transtornos do Crescimento/complicações , Deficiência de IgA/complicações , Deficiência Intelectual/complicações , Microcefalia/complicações , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/patologia , Eczema/diagnóstico , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/patologia , Fácies , Evolução Fatal , Transtornos do Crescimento/diagnóstico , Humanos , Deficiência de IgA/diagnóstico , Deficiência Intelectual/diagnóstico , Masculino , Microcefalia/diagnóstico , Adulto JovemRESUMO
Gastrointestinal stromal tumors (GISTs) are rare in the childhood period. The authors reported a case who was admitted to the neonatal intensive care unit (NICU) on a suspicion of intestinal obstruction. She was operated and a mass in a size of 6 x 4.5 x 4 cm was resected from the ileum. Histologic and immunohistochemical studies showed a GIST. CD34, small muscle actin (SMA), and desmin were positive. The baby was discharged on the 13th day after operation.
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Neoplasias Gastrointestinais/complicações , Neoplasias do Íleo/complicações , Obstrução Intestinal/etiologia , Adulto , Biomarcadores Tumorais/metabolismo , Feminino , Neoplasias Gastrointestinais/patologia , Humanos , Neoplasias do Íleo/patologia , Recém-Nascido , Obstrução Intestinal/metabolismo , Obstrução Intestinal/cirurgia , Resultado do TratamentoRESUMO
Xeroderma pigmentosum (XP) is a rare inheritable disease characterized by severe sun sensitivity and early development of skin cancers. We compared the expression of cell proliferation markers and cell cycle checkpoint regulators in squamous cell carcinomas (SCC) and basal cell carcinomas (BCC) from patients with and without XP. Immunostaining for p53, Ki-67, and proliferating cell nuclear antigen (PCNA) was determined in SCCs and BCCs from 18 XP patients and 30 controls. Nine of the 18 XP patients had SCC and BCC, and the other nine had only SCC. In the control group, 15 moderately differentiated SCCs and 15 BCCs were evaluated. Expressions of p53, Ki-67 and PCNA in XP and non-XP patients were assessed statistically by using the Chi-square method. Expression of Ki-67 and PCNA was found to be greater in SCC from XP patients than controls (P = 0.021 and P = 0.033, respectively). Expression of PCNA and p53 by BCCs was greater in XP patients (P < 0.001 and P = 0.027, respectively). There was a significant difference in Ki-67 (P < 0.001) and PCNA (P = 0.001) expression between the lesions of the XP patients who died during the follow up and XP patients who survived. In XP patients, SCCs with more than 10% Ki-67 expression and %50 PCNA expression have a poor prognosis. Our results suggest that increased Ki-67 and PCNA expression may be a predictor for recurrence of nonmelanocytic skin cancer and a poor prognosis.
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Carcinoma Basocelular/metabolismo , Carcinoma de Células Escamosas/metabolismo , Antígeno Ki-67/metabolismo , Antígeno Nuclear de Célula em Proliferação/metabolismo , Neoplasias Cutâneas/metabolismo , Proteína Supressora de Tumor p53/metabolismo , Xeroderma Pigmentoso/metabolismo , Adolescente , Adulto , Carcinoma Basocelular/patologia , Carcinoma de Células Escamosas/patologia , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Neoplasias Cutâneas/patologia , Xeroderma Pigmentoso/mortalidade , Xeroderma Pigmentoso/patologia , Adulto JovemRESUMO
Adult onset Still's Disease (ASD) is a systemic inflammatory disorder of unknown etiology characterized by chronic and fluctuant fever with accompanying rash, polyarthritis and involvement of multiple organs, especially lymphoid tissues. Although kidney involvement may appear in some cases of adult Still's disease, membranous glomerulonephyritis has not been described before. We herein report a 38-year-old man diagnosed with Still's disease with longstanding polyarthritis unresponsive to high-dose steroids and various immunosuppressive drugs for 5 years. He was referred to our clinic with bilateral pretibial edema on his legs. Urine examination revealed 10.5 g/day proteinuria with membranous glomerulonephritis and his renal biopsy came up with it. Infliximab was initiated, and his complaints were totally resolved also with a normal urine test in the following 3 months. To the best of our knowledge, this is the first report that clearly shows the efficacy of infliximab in a patient with refractory ASD with membranous glomerulonephyritis.
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Anti-Inflamatórios/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Glomerulonefrite Membranosa/tratamento farmacológico , Proteinúria/tratamento farmacológico , Doença de Still de Início Tardio/tratamento farmacológico , Adulto , Glomerulonefrite Membranosa/complicações , Humanos , Infliximab , Masculino , Proteinúria/etiologia , Doença de Still de Início Tardio/complicaçõesRESUMO
OBJECTIVES: The effect of verapamil on tubular ischemia that is demonstrated by HIF-1alpha positivity in tubular cells following hyperoxaluria was evaluated in a rabbit model. METHODS: Thirty-six healthy male rabbits were randomly divided into three groups. Animals in the hyperoxaluric group were fed with 0.75% ethylene glycol. The verapamil group was fed identically to the hyperoxaluric group. Additionally, the verapamil group received verapamil orally (0.1 mg/kg). The control group received no special diet. Six animals in each group were killed on the 7th day of the experiment and the remaining six at the 28th day. Kidneys of the rabbits were examined by histopathologic and immunohistochemical analysis to detect the presence and degree of HIF-1alpha positivity. RESULTS: On the 7th day analysis, severe and moderate degree staining for HIF-1alpha in hyperoxaluric group were shown in four and two, respectively. In the verapamil group, however, three of six specimens showed nuclear staining (moderate in two and severe in one). Two of six specimens in the control group had minimal staining. The 28th day evaluation showed that two of the hyperoxaluric group had minimal degree nuclear staining but not in the remaining four. No staining was shown in the verapamil and control group animals. CONCLUSIONS: Hyperoxaluria-related ischemia formation may be responsible for subsequent alterations in renal tubules. As a protective agent, verapamil was found to limit the presence of hypoxic changes as documented by HIF-1 alpha positivity in this study. These data also support the presence ischemic insult after hyperoxaluria induction in animal model.
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Bloqueadores dos Canais de Cálcio/uso terapêutico , Hiperoxalúria/complicações , Subunidade alfa do Fator 1 Induzível por Hipóxia/análise , Isquemia/etiologia , Isquemia/prevenção & controle , Túbulos Renais/irrigação sanguínea , Túbulos Renais/química , Verapamil/uso terapêutico , Animais , Rim/química , Masculino , Coelhos , Fatores de TempoRESUMO
Hypoxia-inducible factor-1alpha (HIF-1alpha) is a critical regulatory protein of cellular response to hypoxia. In this study, we evaluated the relationship of HIF-1alpha with clinicopathologic parameters such as tumor stage and grade, as well as angiogenic profile and proliferation index. The immunoreactivity of HIF-1alpha was assessed in 70 cases of primary bladder urothelial carcinoma. Vascular endothelial growth factor (VEGF) and microvessel density (MVD) were used to evaluate the angiogenic profile. MVD was calculated by immunohistochemical staining of endothelial cells with CD34. Proliferation index was determined by the percentage of Ki-67 nuclear staining in tumor cells. There was a significant relationship between HIF-1alpha immunoreactivity and stage, as well as histologic grade of the tumor (P < 0.001). HIF-1alpha immunoreactivity was also closely related to VEGF expression (P < 0.001), MVD (P = 0.002) and proliferation index (P < 0.001). VEGF, MVD and proliferation index were found to be closely related to tumor stage and histologic grade. There was no correlation between HIF-1alpha immunoreactivity and lamina propria (P = 0.13), muscularis propria (P = 0.009) or vascular invasion (P = 0.1). In this study, HIF-1alpha expression was found to be closely related to prognostic parameters in bladder urothelial carcinoma. For this reason, it may be a useful marker to determine the prognosis and to choose the appropriate treatment modality.
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Subunidade alfa do Fator 1 Induzível por Hipóxia/imunologia , Neoplasias da Bexiga Urinária/imunologia , Neoplasias da Bexiga Urinária/patologia , Proliferação de Células , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neovascularização PatológicaRESUMO
A 72-year-old man recently diagnosed with a small cell carcinoma of the prostate was referred for staging of the primary malignancy. F-18-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography and computed tomography (PET/CT) revealed extensive hypermetabolic metastatic involvement of the liver, multiple small metastatic nodules in the lungs, and a solitary bone metastasis to the left scapula, in addition to increased FDG uptake in the enlarged prostate. Serum prostate-specific antigen level was within normal limits. Although FDG PET is not a helpful imaging method for evaluating prostatic adenocarcinoma, it may be useful in staging of small cell carcinoma of the prostate.
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Carcinoma de Células Pequenas/patologia , Fluordesoxiglucose F18 , Metástase Neoplásica/diagnóstico por imagem , Neoplasias da Próstata/patologia , Idoso , Carcinoma de Células Pequenas/diagnóstico por imagem , Humanos , Masculino , Tomografia por Emissão de Pósitrons , Neoplasias da Próstata/diagnóstico por imagem , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: Multiple primary malignant tumors are rarely seen. Tobacco is one of the factors in their etiology. We report the case of a heavy smoker with metachronous triple primary cancer occurring in the prostate, kidney and urinary bladder. CASE REPORT: A 70-year-old man with prostate cancer presented with the complaint of hematuria. Computed tomography (CT) showed increased wall thickness of the urinary bladder with an enlarged prostate. After the trans-urothelial resection operation pathological diagnosis was consistent with transitional cell carcinoma of the urinary bladder. After 9 months of follow-up, the control CT showed metastatic lesions in the right and left kidneys and in the right lung. Bilateral partial nephrectomy was performed. Interestingly, renal cell carcinoma (RCC) was diagnosed. Rightsided video-assisted thoracoscopic surgery was also performed. The results of the histopathological examination were consistent with metastatic RCC. CONCLUSIONS: Although the patient presented with triple carcinoma, there was no familial cancer history suggesting a genetic association. The patient was a heavy smoker, and tobacco usage may be the underlying cause of the detected cancers. This is one of the rare cases in the published literature with triple primary urogenital cancer.
Assuntos
Neoplasias Renais/diagnóstico , Neoplasias Renais/cirurgia , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Primárias Múltiplas/cirurgia , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/cirurgia , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/cirurgia , Idoso , Humanos , Masculino , Resultado do TratamentoRESUMO
Primary renal synovial sarcoma is a rarely seen renal neoplasm. An experienced uropathologist is needed to make the pathological diagnosis. A patient, operated on with a prediagnosis of renal cell carcinoma, the pathology of which was reported as synovial sarcoma, is presented in this article. 18F-fluoro-deoxyglucose positron emission tomography and computed tomography were performed preoperatively and in the postoperative follow-up to detect the primary tumor and lymph node metastases.