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1.
Eur J Paediatr Dent ; 23(4): 327-331, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36511903

RESUMO

AIM: Dental fear/anxiety (DFA) may considerably complicate treatment in paediatric dentistry. This cross-sectional study aimed to assess DFA in Czech preschoolers aged 3-6 years and its relationship to gender, age, location of residence, dental status and previous treatment. METHODS: The study involved 460 children from preschools in four location types selected according to the WHO criteria for oral health surveys. DFA was assessed using the Venham picture test (VPT, score range 0-8) prior to the evaluation of dental status using the dmfs (decayed, missing, filled surface) index. The significance level was set to 5%. CONCLUSION: DFA is common in Czech preschoolers. Higher levels of DFA were found in females, children aged 3-4 years, children from rural areas, children with a higher dmfs index and children who had a tooth extracted.


Assuntos
Ansiedade ao Tratamento Odontológico , Cárie Dentária , Criança , Pré-Escolar , Feminino , Humanos , Ansiedade ao Tratamento Odontológico/epidemiologia , Estudos Transversais , Índice CPO , Saúde Bucal
2.
Cesk Slov Oftalmol ; 77(6): 289-294, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35081718

RESUMO

INTRODUCTION: Premacular hemorrhage (PH) and sub-internal limiting membrane hemorrhage (sub-ILM-H) are among the causes of sudden deterioration of central visual acuity. Anatomical and functional outcomes of different therapeutic options were evaluated retrospectively. METHODS: The study included three eyes of three patients (2 females and 1 male). Location of the hemorrhage was determined by spectral domain optical coherence tomography. Subhyaloid premacular location of the hemorrhage was proven in one eye of each woman and sub-ILM location of the hemorrhage in one eye of the male. The baseline best corrected visual acuity (BCVA) was 0.63 in the eyes of the females and 0.16 in the eye of the male. Conservative treatment option was chosen in case of juxtafoveolar PH in the eye of the female patient on anticoagulant warfarin therapy. The female patient with PH secondary to proliferative diabetic retinopathy (PDR) underwent Nd: YAG laser hyaloidotomy. The male patient with unexplained cause of the sub- ILM-H underwent 25-Gauge vitrectomy with ILM peeling and subsequent ultrastructural morphometric and histopathological examination of the ILM. RESULTS: Both BCVA and retinal finding improvement were achieved in all patients. Final BCVA was 0.8 in the eye of the female patient with PDR and 1.0 in rest of the eyes of the other patients. No complications were recorded at follow-up visits. Histopathological and morphometric examination demonstrated variable ILM thickness (2.70 ±1.58 μm) and proved presence of fibroblasts and macrophages with hemosiderin deposits on the retinal side of ILM. CONCLUSION: The choice of the treatment option of PH and sub-ILM-H depends on input parameters such as the initial BCVA, the extent and the location of the hemorrhage, as well as the overall health of the patient. Nd: YAG laser hyaloidotomy is an effective method for rapid recovery of visual functions. Surgical ILM peeling and aspiration of the underlying hemorrhage result in the removal of breakdown products of hemoglobin and minimization of the risk of secondary epiretinal membranes development.


Assuntos
Membrana Epirretiniana , Membrana Basal , Membrana Epirretiniana/cirurgia , Feminino , Humanos , Masculino , Hemorragia Retiniana/diagnóstico , Hemorragia Retiniana/etiologia , Hemorragia Retiniana/cirurgia , Estudos Retrospectivos , Tomografia de Coerência Óptica , Vitrectomia
3.
Physiol Res ; 69(Suppl 2): S305-S314, 2020 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-33094628

RESUMO

Midazolam is a short acting sedative with small number of adverse effects. Administered orally, it is currently the most common form of conscious sedation in children. The objective of this paper is to describe effect of midazolam administered to children during dental treatment on their vital signs, and to monitor changes in children's behavior. We described values of vital signs and behavior in 418 sedations conducted in 272 children between 1-12 years of age. To achieve the following results, we used data from 272 all first-time sedations. After administration of midazolam arterial blood pressure and blood oxygen saturation decreased by values which were not clinically significant. The heart rate increased, with values staying within the limits of physiological range. The speed of onset of midazolam's clinical effects depends on age and dose. The lower age and dose correlated with the higher behavior score. The effectiveness of midazolam treatment is 97.8 %. Unwillingness of child to receive midazolam is predictor for disruptive behavior during sedation. 1.8 % of all sedation cases showed paradoxical reactions. The administration of midazolam in dose of 0.5 mg per 1 kg of child's body weight is safe and could be recommended for dental treatment in pediatric dentistry.


Assuntos
Comportamento Infantil/efeitos dos fármacos , Sedação Consciente/métodos , Odontologia/métodos , Hipnóticos e Sedativos/administração & dosagem , Midazolam/administração & dosagem , Sinais Vitais/efeitos dos fármacos , Administração Oral , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
4.
Physiol Res ; 67(Suppl 3): S421-S429, 2018 11 28.
Artigo em Inglês | MEDLINE | ID: mdl-30484669

RESUMO

Taste is important for food intake. The fetus first experiences taste through amniotic fluid, and later via mother's milk. Early human experience with taste has a key importance for later acceptance of food. Dietary behavior is determined by the interaction of many different factors. The development of the olfactory and taste receptors begins at 7-8 weeks of gestation. An early sensitive period probably exists when flavor preference is established. Sweet taste is preferred in early childhood; this is the reason why children are at increased risk of over-consuming saccharides. Gustatory sensitivity declines with age. The threshold for the perception of each basic taste differs, and is established genetically. In this review, we summarize published data on taste preferences and its development and changes during life.


Assuntos
Ingestão de Alimentos/fisiologia , Feto/fisiologia , Olfato/fisiologia , Paladar/fisiologia , Fatores Etários , Pré-Escolar , Feminino , Humanos , Gravidez
5.
Physiol Res ; 66(Suppl 3): S317-S322, 2017 09 26.
Artigo em Inglês | MEDLINE | ID: mdl-28948815

RESUMO

Dental management behavior problems are thought to be both multifactorial and multidimensional, consisting of physiological, behavioral and cognitive components. The stress response to pain or even the anticipation of distress initiates activation of the hypothalamic-pituitary-adrenal axis and causes an increase of cortisol and catecholamines. The literature on the role of hormones in dental management behavior problems comprises about one hundred papers, which have mainly been focused on this activation of the HPA axis in various situations in dental care. They have generally used salivary cortisol as a marker of the activity of the HPA axis, sometimes combined with salivary alpha amylase. Here we summarize the literature data on the role of stress hormones in dental management behavior problems.


Assuntos
Odontologia/métodos , Hidrocortisona/metabolismo , Manejo da Dor/métodos , Dor/metabolismo , Estresse Psicológico/metabolismo , Medo/fisiologia , Medo/psicologia , Humanos , Sistema Hipotálamo-Hipofisário/metabolismo , Dor/psicologia , Manejo da Dor/psicologia , Sistema Hipófise-Suprarrenal/metabolismo , Saliva/metabolismo , Estresse Psicológico/psicologia
6.
Physiol Res ; 66(Suppl 3): S397-S408, 2017 09 26.
Artigo em Inglês | MEDLINE | ID: mdl-28948824

RESUMO

This work discusses the clinical performance of chromogranin A, free metanephrine and normetanephrine determination in plasma using a radioimmunoanalytical methods for the diagnosis of pheochromocytoma and paraganglioma. Blood samples were collected from 55 patients (46 pheochromocytomas, 9 paragangliomas). A sampling of biological materials was performed preoperatively and about one week, six months and one year after adrenal gland surgery. The comparative group without a diagnosis of pheochromocytoma/paraganglioma consisted of 36 pheochromocytoma/paraganglioma patients more than 4 months after adrenal gland surgery, and of 87 patients, 16 of them with multiple endocrine neoplasia, 9 with medullary and 5 with parafolicullar carcinoma of the thyroid gland. The rest were patients with various adrenal gland disorders. Chromogranin A, metanephrine and normetanephrine were determined in the EDTA-plasma using a radioimmunoassay kits Cisbio Bioassays, France and IBL International GmbH, Germany. Clinical sensitivity was 96 % for the combination of metanephrine and normetanephrine, and 93 % for chromogranin A. Clinical specificity was 100 % for the combination metanephrine and normetanephrine, and 96 % for chromogranin A. Falsely elevated levels of chromogranin A were observed in 1 patient with chronic renal insufficiency and 9 analyses were influenced by the administration of proton pump inhibitors. These results were excluded of CGA specificity. Both the combination of plasma free metanephrine, normetanephrine and chromogranin A as determined by radioimmunoassays, which are simple without the necessity of special laboratory material, are effective markers of pheochromocytoma or paraganglioma. Chromogranin A exerts association to malignity and all markers are associated with tumor mass.


Assuntos
Neoplasias das Glândulas Suprarrenais/sangue , Biomarcadores Tumorais/sangue , Cromogranina A/sangue , Metanefrina/sangue , Normetanefrina/sangue , Feocromocitoma/sangue , Adolescente , Neoplasias das Glândulas Suprarrenais/diagnóstico , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Feocromocitoma/diagnóstico , Radioimunoensaio/métodos , Adulto Jovem
7.
Neoplasma ; 64(2): 278-282, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28043156

RESUMO

Pheochromocytomas and Paragangliomas (PHEO/PARA) are rare endocrine tumors originating from the adrenal medulla. More than 20 genes are involved in the tumorigenesis of these tumors, but a substantial part of the causative genetic events remains unexplained. A recent study has reported the presence of the activating BRAF V600E mutation in PCC, suggesting a role for BRAF activation in tumor development. Other studies have not find this mutation. This study investigates the occurrence of the BRAF V600E mutation in these tumors.A cohort of 64 PHEO/PARA were screened for the BRAF V600E mutation using direct Sanger sequencing and QRT-PCR.All cases investigated displayed wild-type without V600E BRAF mutationTaken together with all previously screened tumors up to date, only 1 V600E BRAF mutation has been found among 427 PCCs. These findings imply that the V600E BRAF mutation is a rare event in PHEO/PARA.


Assuntos
Neoplasias das Glândulas Suprarrenais/genética , Paraganglioma/genética , Feocromocitoma/genética , Proteínas Proto-Oncogênicas B-raf/genética , Estudos de Coortes , Humanos , Mutação
8.
Cytopathology ; 28(2): 109-115, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27658926

RESUMO

OBJECTIVE: To evaluate the efficacy and the learning curve of the endoscopic ultrasound-guided fine needle aspiration biopsy (EUS-FNAB) diagnostics of pancreatic lesions over 8 years (2007-2014). MATERIAL AND METHODS: EUS-FNAB using a Linear Echoendoscope Olympus was performed in 531 patients, mostly without rapid on-site evaluation (ROSE). Smears plus cytoblock sections were used routinely. Immunocytochemistry was utilised as indicated. RESULTS: The average, satisfactory sampling rate increased from the 61.2% in the first 3-year period to 72.9% in the last 3-year period (P = 0.008). The availability of the material for cytoblocks increased from 36.4% in the first period to 75.3% in the last period (P = 0.017). The efficacy of cytoblocks increased from 39.6% to 46.2% (P = 0.086). Comparing the first and last 3-year periods, the indication for immunocytochemistry did not rise substantially (5.2% and 8.5% respectively), but the predictive value of immunocytochemistry rose from 56.3% to 100.0% (P = 0.001). The most frequent diagnostic result was malignancy confirmation - both primary (41.2%) and metastatic (2.1%). In cases with representative samples and follow-up information, the specificity, sensitivity, positive predictive value and accuracy were high from the beginning. The negative predictive value decreased slightly in the last 3-year period. CONCLUSION: The pancreatic EUS-FNAB without ROSE represents a suboptimal arrangement conditioned with our staff/time/location reality. Nevertheless, within the last 3 years of our activity, nearly three-quarters of patients profit from the diagnostic contribution of this procedure.


Assuntos
Aspiração por Agulha Fina Guiada por Ultrassom Endoscópico , Pâncreas/patologia , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia por Agulha/métodos , Aspiração por Agulha Fina Guiada por Ultrassom Endoscópico/métodos , Endossonografia/métodos , Feminino , Humanos , Imuno-Histoquímica/métodos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade , Adulto Jovem
9.
Ceska Gynekol ; 81(3): 228-232, 2016.
Artigo em Tcheco | MEDLINE | ID: mdl-27882768

RESUMO

OBJECTIVE: The description of rare case of the Cushings syndrome in pregnancy resulting in the spontaneous rupture of uterus. DESIGNS: A case report. SETTING: Department of Gynecology and Obstetrics, 1st Medical Faculty of Charles University and Hospital Na Bulovce. CASE REPORT: The authors report the case of a 33 year old woman, who was admitted to the clinic in 30th week of pregnancy for elevated blood pressure and hypokalemia. Arterial hypertension was corrected with the combination of Vasocardin and Dopegyt. In 36th week of pregnancy the patient was admitted to the hospital with premature rupture of membranes. In less than sixteen hours the patient spontaneously gave birth to a healthy girl. Subsequently the patient suffered from abdominal pain. CT scan showed haemoperitoneum and a right adrenal mass and the surgical revision was performed. During the surgery uterine rupture was identified and the patient uderwent abdominal hysterectomy. Based on the endocrinological examination the diagnosis of Cushings syndrome was made. Three months after the delivery she underwent laparoscopic right adrenalectomy. Histological examination revealed adrenocortical oncocytoma. CONCLUSION: Cushings syndrome is rare in pregnancy and misdiagnosis is common. Symptoms mimic pregnancy complications. The disease is often diagnosed with delay even after delivery. The sonography and magnetic resonance are dominant imaging methods. Laboratory diagnosis is difficult due to pregnancy related changes. In spite of rarity of Cushings syndrome in pregnancy we should think about it in terms of the differential diagnosis of hypertension, diabetes, dysbalance of mineralogram and typical cushingoid habitus.


Assuntos
Adenoma Oxífilo/diagnóstico , Neoplasias do Córtex Suprarrenal/diagnóstico , Síndrome de Cushing/diagnóstico , Complicações Neoplásicas na Gravidez/diagnóstico , Transtornos Puerperais/diagnóstico , Ruptura Uterina/diagnóstico , Adenoma Oxífilo/cirurgia , Adrenalectomia , Adulto , Síndrome de Cushing/cirurgia , Feminino , Hemoperitônio/diagnóstico , Hemoperitônio/cirurgia , Humanos , Histerectomia/efeitos adversos , Laparoscopia , Gravidez , Complicações Neoplásicas na Gravidez/cirurgia , Transtornos Puerperais/cirurgia , Reoperação , Ruptura Espontânea , Tomografia Computadorizada por Raios X , Ruptura Uterina/cirurgia
10.
Physiol Res ; 64(Suppl 2): S313-22, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26680494

RESUMO

This work discusses the clinical performance of deconjugated metanephrine (MN), normetanephrine (NMN) and 3-methoxytyramine (3MT) determined in the basal first morning urine using a chromatographic method with electrochemical detection for the clinical diagnosis of pheochromocytoma (PHEO) and paraganglioma (PGL). Urine samples were collected from 44 patients (36 with PHEO, 8 with PGL) aged 54+/-17 (20-78) years (22 females, 22 males). A sampling of biological materials was performed preoperatively and about one week, six months and one year after adrenal gland surgery. The control group consisted of 34 PHEO/PGL patients more than 4 months after adrenal gland surgery. All subjects in the control group were without a diagnosis of PHEO or PGL. Clinical sensitivity was 55 % for MN, 64 % for NMN, 80 % for combination of both MN and NMN, and only 23 % for 3TM. Clinical specificity calculated from the control group was 93 % for MN, 95 % for NMN, 95 % for the combination MN and NMN, and 97 % for 3TM. Cut-off values for deconjugated metanephrines in the basal urine were 310 (MN), 690 (NMN) and 250 microg/l (3MT). Chromatographic determination of deconjugated urinary metanephrines, which is simple without the necessity of special laboratory material, can serve for the screening of PHEO or PGL patients. Urine NMN and 3MT exerts an association to malignity, and all markers are associated with tumor mass. However, the principal laboratory diagnosis of PHEO or PGL must be based on plasma-free metanephrines and plasma chromogranin A with better performance in the laboratory diagnosis of PHEO or PGL.


Assuntos
Neoplasias das Glândulas Suprarrenais/urina , Dopamina/análogos & derivados , Metanefrina/urina , Normetanefrina/urina , Paraganglioma/urina , Feocromocitoma/urina , Neoplasias das Glândulas Suprarrenais/diagnóstico , Adulto , Idoso , Biomarcadores/urina , Cromatografia Líquida de Alta Pressão/métodos , Técnicas de Laboratório Clínico/métodos , Dopamina/urina , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paraganglioma/diagnóstico , Feocromocitoma/diagnóstico , Adulto Jovem
11.
Horm Metab Res ; 47(9): 633-6, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26177121

RESUMO

Pheochromocytomas are catecholamine-producing tumors with typical clinical presentation. Tumor resection is considered as an appropriate treatment strategy. Due to its unpredictable clinical behavior, biochemical testing is mandatory to confirm the success of tumor removal after surgery. The aim of the study was to investigate the feasibility of a shorter interval of postoperative testing (earlier than the recommended 2-4 weeks according to recently published Guidelines). We investigated 81 patients with pheochromocytoma before and after surgery. Postoperative examination was performed of stable subjects after their transport from the surgical to the internal ward (7.1±2.2 days after surgery). Plasma metanephrines were used for the diagnosis of pheochromocytoma and confirmation of successful tumor removal. All subjects with pheochromocytoma had markedly elevated plasma metanephrines before surgery. No correlation between postoperative interval (the shortest being 3 days) and plasma metanephrine levels was found. Postoperative plasma metanephrine levels did not differ significantly from those taken at the one-year follow-up. In conclusion, we have shown that early postoperative diagnostic workup of subjects with pheochromocytoma is possible and may thus simplify early postoperative management of this clinical condition.


Assuntos
Neoplasias das Glândulas Suprarrenais/sangue , Neoplasias das Glândulas Suprarrenais/cirurgia , Metanefrina/sangue , Avaliação de Resultados em Cuidados de Saúde , Feocromocitoma/sangue , Feocromocitoma/cirurgia , Adulto , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Fatores de Tempo
12.
Klin Onkol ; 27 Suppl 2: 79-86, 2014.
Artigo em Tcheco | MEDLINE | ID: mdl-25494892

RESUMO

INTRODUCTION: The nationwide Cervical Cancer Screening Programme in the Czech Republic was introduced in 2009. The aim of this article is to describe the results of this programme in the first few years after its transformation into a fully-fledged, organised programme. MATERIAL AND METHODS: During the first few years, a network of 37 accredited laboratories was stabilised, ensuring that examinations would be readily available across the Czech Republic. Although all women aged between 25 and 70 years fall within the target group of the current personalised invitation programme, women not in this age group are reimbursed for preventive screening examinations as well. The programme is equipped with an information support provided by the Institute of Biostatistics and Analyses of the Masaryk University, which runs the Cervical Cancer Screening Registry. RESULTS: Cervical cancer incidence and mortality rates in the Czech Republic have seen a significant decrease over the last decade. By the end of 2013, more than 11 million examinations were reported to the registry by the accredited laboratories, and more than 15,000 serious cervical lesions were detected. Analysis of the data from the registry makes it possible to monitor the quality of individual laboratories and the effectiveness of the entire programme. CONCLUSION: The promising start of the programme provides a strong argument for its continuation. The program--me has the potential to decrease cervical cancer incidence rates in the Czech Republic to values comparable with those reported by countries with advanced health care systems.


Assuntos
Detecção Precoce de Câncer/estatística & dados numéricos , Programas Nacionais de Saúde/estatística & dados numéricos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia , Adulto , Idoso , República Tcheca/epidemiologia , Feminino , Humanos , Pessoa de Meia-Idade , Programas Nacionais de Saúde/normas
13.
Exp Clin Endocrinol Diabetes ; 122(5): 268-72, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24839220

RESUMO

BACKGROUND: Papillary thyroid carcinoma (PTC) is the most common malignant thyroid tumour. A common mutation of papillary thyroid carcinoma (PTC) is the somatic mutation of the BRAF (V600E) gene. AIM: The aim was to 1) determine the association of lymph node metastases of PTC with the BRAF gene mutation of primary tumour; 2) evaluate association of the BRAF mutation in the -primary tumour with clinicopathological para-meters; 3) examine the extent of genetic heterogeneity by monitoring the BRAF mutation in multicentric tumours. SUBJECTS AND METHODS: Retrospective analysis of the BRAF (V600E) mutation in PTC and PTC neck lymph node metastases in 156 patients operated from 2003 to 2012 in Prague and Zlín, the Czech Republic, using a qPCR assay. The results were correlated with clinicopathological factors. RESULTS: DNA was successfully extracted from 137 samples. The BRAF (V600E) mutation was detected in 78 cases (56.9%). The patients with BRAF p.Val600Glu mutation of primary tumour had only non-significantly higher risk of cervical lymph node metastases [OR=2.39 (95%) CI 1.00-5.75, p=0.052]. In the classic papillary variant, the BRAF (V600E) mutation was found significantly more often than in other PTC subtypes (p=0.022). We did not confirm any significant association between the BRAF (V600E) mutation and other clinicopathological findings. CONCLUSION: Except for the higher prevalence in papillary variant of PTC, BRAF p.Val600Glu mutation was not associated with other prognostic clinicopathological factors of PTC. BRAF mutation cannot be regarded as a reliable marker of node metastases in patients with PTC.


Assuntos
Carcinoma/genética , Carcinoma/patologia , Mutação de Sentido Incorreto , Proteínas Proto-Oncogênicas B-raf/genética , Neoplasias da Glândula Tireoide/genética , Neoplasias da Glândula Tireoide/patologia , Adulto , Substituição de Aminoácidos , Carcinoma/diagnóstico , Carcinoma Papilar , Feminino , Seguimentos , Humanos , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide/diagnóstico
14.
Rozhl Chir ; 93(2): 100-6, 2014 Feb.
Artigo em Tcheco | MEDLINE | ID: mdl-24702294

RESUMO

The definition of a safe surgical margin in tumours of parenchymatous organs has been the subject of frequent debates and a number of studies. This topic is not generally unified for parenchymatous organs and has many organ specifics. Moreover, there are still controversies in the diagnostic criteria and the definitions of positive resection margins, in indications of perioperative examinations of resection margins, and in the prognostic significance of margin involvement in different parenchymatous organs. The consensus in terminology and standardization of histopathological examination procedures is also very desirable across the diagnostic areas.


Assuntos
Neoplasias/patologia , Neoplasias/cirurgia , Humanos , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/prevenção & controle , Neoplasia Residual/patologia , Neoplasia Residual/prevenção & controle , Prognóstico , Fatores de Risco
15.
Physiol Res ; 63(Suppl 1): S141-54, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24564654

RESUMO

Teeth have been a focus of interest for many centuries--due to medical problems with them. They are the hardest part of the human body and are composed of three mineralized parts--enamel, dentin and cementum, together with the soft pulp. However, saliva also has a significant impact on tooth quality. Proteomic research of human teeth is now accelerating, and it includes all parts of the tooth. Some methodological problems still need to be overcome in this research field--mainly connected with calcified tissues. This review will provide an overview of the current state of research with focus on the individual parts of the tooth and pellicle layer as well as saliva. These proteomic results can help not only stomatology in terms of early diagnosis, identifying risk factors, and systematic control.


Assuntos
Perfilação da Expressão Gênica/métodos , Proteoma/metabolismo , Proteômica/métodos , Saliva/metabolismo , Dente/metabolismo , Humanos , Distribuição Tecidual
16.
Urol Int ; 92(2): 150-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24481124

RESUMO

OBJECTIVE: To evaluate the prognostic value of the depth of lamina propria invasion in patients with T1 bladder cancer. SUBJECTS AND METHODS: 200 patients were treated between the years 2002 and 2009. Tumours with depth of invasion above the muscularis mucosae level were categorised as pT1a and those with depth of invasion up to or beyond the muscularis mucosae as pT1b. RESULTS: Categorisation for pT1a and pT1b was performed in 176 of 200 patients (88%). In 10 patients a muscle-invasive tumour was found in re-transurethral resection samples. 131 (79%) of 166 analysed patients had pT1a tumour and 35 (21%) had pT1b tumour. During the follow-up, in 101 (61%) patients the tumour had recurred and in 27 (16.3%) the tumour had progressed. Of all the investigated parameters, T1 substaging (p < 0.0001), grade (p = 0.0003) and the number of bacillus Calmette-Guérin instillations (p = 0.0490) were significant in predicting progression. The only significant factor for disease-specific survival was T1 substaging in univariable (p = 0.0008) and multivariable (hazard ratio 4.407) analysis. T1 substaging (p = 0.0149) and tumour multiplicity (p = 0.0448) have a statistically significant prognostic value with respect to overall survival. CONCLUSIONS: Deep invasion of the lamina propria is a significant adverse prognostic factor for tumour progression, disease-specific survival and overall survival.


Assuntos
Estadiamento de Neoplasias/métodos , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/mortalidade , Bexiga Urinária/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Invasividade Neoplásica , Prognóstico , Modelos de Riscos Proporcionais , Recidiva , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
17.
Neoplasma ; 60(3): 295-301, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23452234

RESUMO

The aim of the study was to define specific genetic profile in Ta and T1 urinary bladder carcinoma patients with and without recurrence by gene expression microarrays. Eleven patients with the time to recurrence shorter than one year (patients with recurrence) and 11 patients with time to recurrence longer than 4 years (patients without recurrence) were enrolled. Data from microarrays were subjected to a panel of statistical analyses to identify bladder cancer recurrence-associated gene signatures. Initial screening using the GeneSpring and Bioconductor software tools revealed a putative set 47 genes differing in gene expression in both groups. After the validation, 33 genes manifested significant differences between both groups. The significant expression was observed in the group of patients without recurrence by 30 genes of which the highest differences were detected by ANXA1, ARHGEF4, FLJ32252, GNE, NINJ1, PRICKLE1, PSAT1, RNASE1, SPTAN1, SYNGR1, TNFSF15, TSPAN1, and WDR34. These genes code for signal transduction, vascular remodeling and vascular endothelial growth inhibition mainly. In the group with recurrence, 3 genes had significant differences, the highest differences were identified by two genes (PLOD2 and WDR72). Loci of genes with significant changes of gene expression were located on characteristic chromosomes for bladder cancer: 7 loci on chromosome 9, 8 loci on chromosomes 1, 2, 3, 12,14,15,16, and 22. We have selected and validated 15 genes that are differentially expressed in superficial bladder cancer. We hope that this cohort of genes will serve as a promising pool of candidate biomarkers for early stage bladder cancer. Our results indicate that it may be possible to identify patients with a low and high risk of disease recurrence at an early stage using a molecular profile.


Assuntos
Biomarcadores Tumorais/genética , Perfilação da Expressão Gênica , Recidiva Local de Neoplasia/genética , Neoplasias da Bexiga Urinária/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Recidiva Local de Neoplasia/diagnóstico , Estadiamento de Neoplasias , Análise de Sequência com Séries de Oligonucleotídeos , Prognóstico , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Estudos Retrospectivos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Fatores de Risco , Neoplasias da Bexiga Urinária/patologia
18.
Cesk Patol ; 48(1): 22-9, 2012 Jan.
Artigo em Tcheco | MEDLINE | ID: mdl-22716004

RESUMO

Cytopathology investigation of the uterine cervix transformation zone smear (Pap test) has been accepted during the last 80 years worldwide as a potent tool in lowering the incidence of squamous cell cervical cancer; it can reveal a proportion of adenocarcinomas as well and contributes to the diagnostics of cervicovaginal infections. The technique itself and diagnostic criteria have been internationally unified in the systems Bethesda I (1988) and Bethesda II (2002). Nevertheless, the cytodiagnostics of cervical precanceroses continues to develop vividly in the following fields of interest. In processing the cervical sample:Unified polychrome staining has been accepted as compulsory Processing of the sample acquired has split into two branches - conventional preparation - CP and liquid based preparation - LBP. In both types of processing (mainly in LBP) additional tests are employed.In evaluation of the cytology features:Differences of the petrified diagnostic features formulated formerly for CP in the LBP have been described. Differentially-diagnostic pitfalls (look-alikes) are studied. Sensitivity of precanceroses detection in a screening routine with the prevalence of negative findings has been improved with compulsory rescreening of 10-20% random selected negative cases as well as rapid pre- or postscreening of the whole material or involvement of automated pre- or postscreening using image analysis systems.Some cytomorphology findings are followed with additional tests - especially HR HPV detection.Cyto-bioptic correlations are constantly studied.In terms of lowering the incidence of uterine cervix carcinoma: Opportune screening is substituted with nationwide programs aimed at:Involvement of as many women of the target group as possible.Standardized investigation (CP or LBP) in an accredited laboratory with functioning systems of external and internal quality control.Selective additional investigation with non-morphological tests.Appropriate treatment of women with pathology findings.Some newly designed nationwide screening models start with a non-morphological test (HPV) followed by a pap test and colposcopy.Stern control of successful implementation of the achievements listed above is expressed in uterine cervix cancer incidence.


Assuntos
Lesões Pré-Cancerosas/diagnóstico , Neoplasias do Colo do Útero/diagnóstico , Citodiagnóstico , Feminino , Humanos , Lesões Pré-Cancerosas/patologia , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal
19.
Horm Metab Res ; 44(5): 379-84, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22517556

RESUMO

Excess of catecholamines in pheochromocytoma is usually accompanied with classical symptoms and signs. In some cases, severe cardiovascular complications (e. g., heart failure, myocardial infarction) may occur. We performed a retrospective analysis focused on the incidence of cardiovascular complications (classified as follows: arrhythmias, myocardial involvement or ischemia and atherosclerosis, cerebrovascular impairment) before the establishment of diagnosis of pheochromocytoma among 145 subjects treated in our hospital. Cardiovascular complications occurred in 28 subjects, but these subjects did not differ significantly from subjects without complications in age, gender, body mass index, paroxysmal symptoms, symptom duration, tumor dimension, catecholamine secretory phenotype, and incidence of hypertension or diabetes mellitus. Arrhythmias occurred in 15 subjects (2 arrhythmia types in 2 subjects): atrial fibrillation in 9 subjects, supraventricular tachycardia in 3 cases, and ventricular tachycardia in 2 patients. Significant bradycardia was noted in 3 cases. Five subjects presented with heart failure with decreased systolic function (takotsubo-like cardiomyopathy found in 2 cases). One subject suffered from hypertrophic obstructive cardiomyopathy. Seven subjects presented with non-ST-segment elevation myocardial infarction, 2 patients with ST-segment myocardial infarction, and 1 subject underwent coronary artery bypass grafting. Two subjects suffered from significant peripheral atherosclerosis. Among cerebrovascular complications, transient ischemic attack was found in 3 cases, 2 subjects suffered from stroke, and subarachnoidal bleeding occurred in 1 patient. One subject suffered from diffuse neurological impairment due to multiple ischemic white matter lesions. These data show relatively high incidence of cardiovascular complications (19.3%) in subjects with pheochromocytoma. Early diagnosis is mandatory to prevent severe complications in pheochromocytoma.


Assuntos
Neoplasias das Glândulas Suprarrenais/complicações , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Feocromocitoma/complicações , Neoplasias das Glândulas Suprarrenais/metabolismo , Adulto , Idoso , Doenças Cardiovasculares/diagnóstico , Catecolaminas/metabolismo , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Feocromocitoma/metabolismo , Estudos Retrospectivos
20.
Cytopathology ; 23(6): 383-8, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21848610

RESUMO

OBJECTIVES: The incidence of cervical cancers increases with age. Due to the trend of increasing age of first pregnancy, abnormal Pap smears including those classified as atypical glandular cells (AGC) are being found more often in early pregnancy. Once invasive cancer is excluded, conservative management of squamous intraepithelial lesions (SIL) in pregnancy is considered safe; however, optimal management of AGC is not well established. The aim of our study was to evaluate the outcome of patients with AGC diagnosed from smears during pregnancy. METHODS: The study included 17 patients referred to us in early pregnancy with Pap smears reported as AGC: 11 not otherwise specified (AGC-NOS), five favour neoplasia (AGC-FN) and one adenocarcinoma in situ (AIS). Thirty-one with high-grade SIL (HSIL) Pap smears confirmed on punch biopsy in early pregnancy comprised a control group. Human papillomavirus (HPV) positivity was found in seven patients with persistent AGC-NOS (including all four who had CIN3 postpartum). All the women were initially examined by expert colposcopy and those with AGC-FN or AIS smears also by transrectal ultrasound to exclude invasive endocervical cancer. Follow-up controls were carried out every 8-12 weeks and, if there were no signs of progression, revaluation was scheduled 6-8 weeks after delivery. RESULTS: The mean age of the women was 31.4 years. Conization in one patient in the study group was performed in the 16th week of pregnancy due to colposcopic signs of microinvasive squamous cell cancer confirmed on histology. Progression to invasive cancer was not found in any of the other 16 patients in the study group or in the control group. Cervical intraepithelial neoplasia or AIS was confirmed postpartum by conization or punch biopsy in 47.1% (8/17) of patients in the study group and, in 77.4% (24/31) of patients in the control group. CONCLUSIONS: Conservative management of women with AGC in pregnancy is safe where invasive cancer is excluded. As histological verification of glandular pre-cancerous lesions by punch biopsy is not reliable and the postpartum regression rate cannot be determined precisely, conization should be performed in all cases with AGC-FN or AIS. Triage of persistent AGC-NOS with HPV testing is useful in distinguishing significant underlying lesions.


Assuntos
Teste de Papanicolaou , Resultado da Gravidez , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal , Adulto , Carcinoma in Situ/patologia , Estudos de Casos e Controles , Feminino , Humanos , Gravidez
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