RESUMO
To develop a better understanding of 'in-service' performance of modern marine coatings, this study explored the combined effects of different roughness ranges of foul-release coating (FRC) and light biofouling (slime) on the surface, boundary layer and drag characteristics under a range of 'in-service' conditions. Natural and laboratory biofilms were grown dynamically on FRC panels by exposing panels in facilities dedicated to realistic fouling culture. The boundary layer experiments were conducted in a circulating water tunnel. Boundary layer similarity-law scaling was used to predict the combined effects of coating roughness and biofilms on the added frictional resistance (% ΔCF) and added required effective power (%ΔPE ) for a benchmark KRISO container ship (KCS) and a bulk carrier. The increase in %ΔPE due to the presence of biofilms on commercial FRC is estimated to be between 7% and 16% depending on the biofilm type, biofilm thickness and percentage coverage. Significant increases in effective power are estimated for non-fouling control primers with heavy fouling. Moreover, the paper suggests updated roughness allowances ( ΔCF ) for two vessel types assuming FRCs on their hulls with more representative hull roughness ranges and fluffy biofilms.
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Biofilmes , Hidrodinâmica , Incrustação Biológica/prevenção & controle , Fricção , Navios , Propriedades de SuperfícieRESUMO
OBJECTIVE: The coagulopathies that present with COVID-19 are thrombotic microangiopathy and disseminated intravascular coagulopathy (DIC). Procalcitonin (PCT) levels have been shown to be significantly increased in COVID-19 patients in comparison with healthy subjects/asymptomatic coronavirus-positive patients. In this report, our aim was to assess the associations of the PCT level with DIC and the severity of COVID-19 infection. PATIENTS AND METHODS: In this cross-sectional, retrospective study, 71 consecutive patients with severe COVID-19 (21 with DIC and 50 without DIC) were enrolled in the study. The PCT level was obtained from hospital records. RESULTS: The PCT level was significantly higher in the patients with DIC than in those without DIC [1.9 (0.6-14.5) vs. 0.3 (0.2-0.4) (ng/mL), p<0.01]. The PCT level showed a positive and significant correlation with DIC (r=0.382, p=0.001) and was an independent predictor of DIC in patients with severe COVID-19 (OR: 6.685, CI: 1.857-24.063, p<0.01). CONCLUSIONS: In summary, the PCT level was increased in severe COVID-19 patients with DIC compared with those without DIC. An increased PCT level might suggest the presence of DIC and may help in predicting COVID-19 severity.
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COVID-19/sangue , Coagulação Intravascular Disseminada/sangue , Insuficiência de Múltiplos Órgãos/sangue , Pró-Calcitonina/sangue , Idoso , Idoso de 80 Anos ou mais , COVID-19/mortalidade , Estudos de Casos e Controles , Estudos Transversais , Coagulação Intravascular Disseminada/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência de Múltiplos Órgãos/epidemiologia , Estudos Retrospectivos , Índice de Gravidade de DoençaRESUMO
OBJECTIVE: To assess pain symptoms before and after hysterectomy in women with endometriosis. DESIGN: A population-based registry study. SETTING: Sweden. POPULATION: Women aged 18-45 years who underwent hysterectomy for endometriosis between 2010 and 2015. METHODS: Pain symptoms before hysterectomy and 12 months after surgery were collected from the Swedish National Quality Register for Gynaecological Surgery (GynOp). Pain symptoms were also assessed by follow-up surveys after a median follow-up period of 63 months. MAIN OUTCOME MEASURES: Pelvic or lower abdominal pain after hysterectomy. RESULTS: The study included 137 women. The proportion of women experiencing pain of any severity decreased by 28% after hysterectomy (P < 0.001). The proportion of women with severe pain symptoms decreased by 76% after hysterectomy (P < 0.001). The majority of women (84%) were satisfied with the surgical result. Presence of severe pain symptoms after the hysterectomy was associated with less satisfaction (P < 0.001). Pain symptoms after surgery, patient satisfaction and the patient's perceived improvement were not significantly different between women whose ovarian tissue was preserved and women who underwent bilateral oophorectomy. CONCLUSIONS: We observed a significant, long-lasting reduction in pain symptoms after hysterectomy among women with endometriosis. Hysterectomy, with the possibility of ovarian preservation, may be a valuable option for women with endometriosis who suffer from severe pain symptoms. TWEETABLE ABSTRACT: Hysterectomy is a valuable option for women with endometriosis and severe pain symptoms.
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Endometriose/complicações , Endometriose/cirurgia , Histerectomia , Dor Pélvica/etiologia , Dor Pélvica/cirurgia , Doenças Uterinas/complicações , Doenças Uterinas/cirurgia , Adolescente , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Sistema de Registros , Índice de Gravidade de Doença , Suécia , Adulto JovemRESUMO
OBJECTIVE: To demonstrate whether there is an association between jugular venous reflux and nonpulsatile subjective tinnitus (NST) using real-time four-dimensional magnetic resonance imaging (MRI) angiography. MATERIALS AND METHODS: Patients with unilateral NST who underwent contrast-enhanced MRI with a special protocol were included in the study. Thick slab dynamic maximum intensity projection images were obtained including interleaved stochastic trajectories (TWIST)-MRI examination. All patients were requested to perform Valsalva maneuver during the sequence. Jugular venous reflux grading was performed as follows: absence of reflux or if reflux does not reach the base of the skull: grade 0; if reflux reaches the jugular bulb, but no intracranial contrast is observed: grade 1; and if reflux extends into the intracranial cortical veins and/or the cavernous sinus above the jugular bulb: Grade 2. RESULTS: A total number of 30 patients, 23 male and 7 female, were included in the study. Jugular venous reflux was not identified (Grade 0) in 20 patients. Grade 1 reflux was determined in 7 cases and Grade 2 reflux was observed in 3 cases. Notably, only patients with Grade 2 reflux described worsening of their tinnitus symptoms during the examination and their daily activities as well. CONCLUSIONS: NST might also be associated with hemodynamic problems of the venous system and the MRI protocol starting with TWIST accompanied with Valsalva maneuver is not well-known, yet seems to be a feasible and beneficial method to detect potential jugular venous reflux in NST patients.
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Encéfalo/irrigação sanguínea , Veias Jugulares/diagnóstico por imagem , Angiografia por Ressonância Magnética/métodos , Zumbido/etiologia , Insuficiência Venosa/fisiopatologia , Adolescente , Adulto , Idoso , Feminino , Humanos , Veias Jugulares/patologia , Masculino , Pessoa de Meia-Idade , Zumbido/fisiopatologia , Manobra de Valsalva , Insuficiência Venosa/complicações , Adulto JovemRESUMO
STUDY QUESTION: Does the long-term fecundity of women with polycystic ovary syndrome (PCOS) differ from those without PCOS? SUMMARY ANSWER: Cumulative probability of childbirth is similar between women with and without PCOS. WHAT IS KNOWN ALREADY: PCOS is the main cause of anovulatory infertility in women after menarche. Previous studies indirectly suggest that fecundity in women with PCOS over the longer term may not be lower than in women without PCOS. STUDY DESIGN, SIZE, DURATION: This is a population-based study using four linked Swedish national registries. A total of 45 395 women with PCOS and 217 049 non-PCOS women were included. Follow-up began at the age of 18 years and continued for a maximum of 26 years, from 1989 to the end of 2015. Childbirth was the main outcome, as identified from the Medical Birth Register. PARTICIPANTS/MATERIALS, SETTING, METHODS: All women born between 1971 and 1997 who were identified with a PCOS diagnosis in the Swedish Patient Registry between 1 January 2001 and 31 December 2016 were included in the study population. Five controls per women with PCOS were randomly drawn from the Total Population Registry. The control women were born in the same year and living in the same municipality as the patient. The fecundity ratio (FR) was calculated by clustered Cox regression using a robust variance, adjusted for maternal birth period, country of birth and level of education. MAIN RESULTS AND THE ROLE OF CHANCE: The cumulative probability of childbirth was 80.2% (95% CI, 79.5-80.9%) in women with PCOS and 78.2% (95% CI, 77.9-78.5%) in those without PCOS. Adjusted FR was 0.81 (95% CI, 0.80-0.82) for first childbirth and 0.58 (95% CI, 0.57-0.60) for first childbirth following a spontaneous pregnancy. The FR for second childbirth was 0.79 (95% CI, 0.77-0.80). Women with PCOS had more than one child less frequently than the comparison group. Within the PCOS group, early age at diagnosis, later birth year, Nordic country of origin and low educational level positively influenced the FR. LIMITATIONS, REASONS FOR CAUTION: Results are not adjusted for BMI, and time from intention to conceive to first childbirth could not be captured. Data on pregnancies, miscarriages or abortions and fertility treatment are unknown for women who did not give birth during the study period. Women with PCOS who did not seek medical assistance might have been incorrectly classified as not having the disease. Such misclassification would lead to an underestimation of the true association between PCOS and outcomes. WIDER IMPLICATIONS OF THE FINDINGS: While cumulative probability of childbirth is similar between groups, women with PCOS need longer time to achieve their first childbirth. Women with PCOS have a lower FR and give birth to fewer children per woman than women without PCOS. Early diagnosis of and information about PCOS may improve affected women's reproductive potential. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the Swedish Society of Medicine. Inger Sundström Poromaa has, over the past 3 years, received compensation as a consultant and lecturer for Bayer Schering Pharma, MSD, Gedeon Richter, Peptonics and Lundbeck A/S. The other authors declare no competing interests.
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Fertilidade/fisiologia , Infertilidade Feminina/epidemiologia , Paridade/fisiologia , Parto/fisiologia , Síndrome do Ovário Policístico/fisiopatologia , Adulto , Fatores Etários , Estudos de Casos e Controles , Escolaridade , Características da Família , Feminino , Seguimentos , Humanos , Infertilidade Feminina/etiologia , Idade Materna , Síndrome do Ovário Policístico/complicações , Gravidez , Sistema de Registros/estatística & dados numéricos , Suécia/epidemiologia , Fatores de Tempo , Adulto JovemRESUMO
Obesity is strongly associated with ill health, primarily caused by consumption of excessive calories, and promoted (inter alia) by gamma-amino-butyric-acid (GABA) stimulating food intake by activating GABAA receptors (primarily with α3 and α2 subunits) in the hypothalamic arcuate nucleus and paraventricular nucleus. Allopregnanolone is a potent positive GABAA receptor modulating steroid (GAMS). As reviewed here, elevated allopregnanolone levels are associated with increases in food intake, preferences for energy-rich food, and obesity in humans and other mammals. In women with polycystic ovarian disease, high serum allopregnanolone concentrations are linked to uncontrolled eating, and perturbed sensitivity to allopregnanolone. Increases in weight during pregnancy also correlate with increases in allopregnanolone levels. Moreover, Prader-Willis syndrome is associated with massive overeating, absence of a GABAA receptor (with compensatory >12-, >5- and >1.5-fold increases in α4, γ2, and α1, α3 subunits), and increases in the α4, ßx, δ receptor subtype, which is highly sensitive to allopregnanolone. GABA and positive GABA-A receptor modulating steroids like allopregnanolone stimulates food intake and weight gain.
Assuntos
Hiperfagia/metabolismo , Obesidade/metabolismo , Síndrome do Ovário Policístico/metabolismo , Pregnanolona/metabolismo , Receptores de GABA-A/metabolismo , Ácido gama-Aminobutírico/metabolismo , Animais , Feminino , Humanos , GravidezRESUMO
AIM: To investigate the efficacy of cerebral oximetry (CO) as an auxiliary diagnostic tool in brain death (BD). MATERIALS AND METHODS: This observational case-control study was performed on patients with suspected BD. Patients with diagnosis of BD confirmed by the brain death committee were enrolled as the BD group and other patients as the non-BD group. CO monitoring was performed at least 6 h, and cerebral tissue oxygen saturation (ScO2) parameters were compared. RESULTS: Mean ScO2 level in the BD group was lower than non-brain-dead patients: mean difference for right lobe = 6.48 (95% confidence interval [CI] 0.08-12.88) and for left lobe = 6.09 (95% CI -0.22-12.41). Maximum ScO2 values in the BD group were significantly lower than the non-BD group: mean difference for right lobe = 8.20 (95% CI 1.64-14.77) and for left lobe = 9.54 (95% CI 3.06-16.03). The area under the curve for right lobe maximum ScO2 was 0.69 (95% CI 0.55-0.81) and for left lobe was 0.72 (95% CI 0.58-0.84). CONCLUSION: Maximum ScO2 in brain-dead patients at CO monitoring is significantly low. However, this cannot be used to differentiate brain-dead and non-brain-dead patients. CO monitoring is therefore not an appropriate auxiliary diagnostic tool for confirming BD.
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Morte Encefálica/diagnóstico , Circulação Cerebrovascular , Oximetria/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
AIM: To study incidence, clinical outcome, and follow-up data of the gestational trophoblastic disease (GTD) in patients diagnosed in the present Department. MATERIALS AND METHODS: This study included the authors' retrospective clinical records regarding the cases of GTD which were diagnosed and followed up between January 2011 and January 2015. Patients' age, gravidity and parity, obstetric history, subgroup of GTD, gestational weeks, management results, and pre-post treatment ß-hCG levels was investigated and an incidence study was constituted. RESULTS: Total of 56 GTD cases were hospitalized and clinical records of 16,840 normal spontaneous deliveries were evaluated during the study period. The incidence of GTD was 3.3/1,000 cases. After histopathological examination, nine of 47 cases were partial molar pregnancy, whereas 38 cases were complete moles. There were no choriocarcinoma and invasive moles. All cases were treated with vacuum curettage without complication. CONCLUSION: The GTD incidence in this clinic is high with a rate of 3.3/1,000 per pregnancy compared to Turkish literature. High birth rates of our population may play a role in high incidence results. Further investigation in this field is essential.
Assuntos
Doença Trofoblástica Gestacional/cirurgia , Curetagem a Vácuo , Adolescente , Adulto , Coeficiente de Natalidade , Feminino , Doença Trofoblástica Gestacional/epidemiologia , Humanos , Pessoa de Meia-Idade , Gravidez , Estudos Retrospectivos , Centros de Atenção Terciária , Curetagem a Vácuo/efeitos adversos , Adulto JovemRESUMO
OBJECTIVE: The aim of the study was to evaluate the value of mean platelet volume (MPV) and neutrophil/lymphocyte ratio (NLR) to predict single-dose methotrexate (MTX) treatment success in ectopic pregnancy (EP). MATERIALS AND METHODS: A total of 115 EP diagnosed and hemodynamically stable women were enrolled in the study and divided into two groups as group 1, the treatment success group (n= 78) and group 2, the treatment failure group (n = 37). The authors compared the groups in terms of MPV and NLR. RESULTS: MPV and NLR levels were higher in MTX treatment successful group than in failure group.The cut-off values of MPV and NLR were determined as 10.1 fL and 1.82, respectively. These cut off values showed similar sensitivity and specificity in prediction of MTX treat- ment success. CONCLUSION: MPV and NLR can be used as reliable markers to predict single-dose MTX treatment success however further studies are needed.
Assuntos
Abortivos não Esteroides/administração & dosagem , Metotrexato/administração & dosagem , Gravidez Ectópica/sangue , Gravidez Ectópica/tratamento farmacológico , Gravidez Tubária/sangue , Gravidez Tubária/tratamento farmacológico , Adulto , Biomarcadores/sangue , Feminino , Humanos , Contagem de Linfócitos , Linfócitos , Volume Plaquetário Médio , Neutrófilos , Gravidez , Sensibilidade e Especificidade , Resultado do TratamentoRESUMO
OBJECTIVE: We aimed to investigate the effect of mad honey on sexual performance. BACKGROUND: In traditional medicine in Turkey, mad honey is used to improve appetite, to heighten mental alertness, to reduce joint pain, to eliminate gastrointestinal system pains and to increase sexual performance. METHODS: In this experimental animal study eighteen Sprague Dawley male rats were randomized into three groups, a control group, a normal honey group and a mad honey group. Rats in the treatment groups were given a daily dose of 80 mg/kg normal honey or mad honey throughout the 30-day study period. Total testosterone, free testosterone, FSH, LH, estradiol, and progesterone levels were subsequently investigated from blood sera on day 30. RESULTS: Comparison of blood total testosterone levels among the groups revealed significantly higher levels in the mad honey group compared to the normal honey and control groups (p = 0.006, p = 0.00). Free testosterone levels were also significantly higher in the mad honey group than in the normal honey and control groups (p = 0.023, p = 0.01). No statistically significant differences were determined for other hormonal measurements. CONCLUSIONS: This study revealed a significant increase in both total and free testosterone levels in mad-honey group (Tab. 1, Fig. 2, Ref. 16).
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Mel/efeitos adversos , Comportamento Sexual , Testosterona/sangue , Animais , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Masculino , Progesterona/sangue , Distribuição Aleatória , Ratos , Ratos Sprague-DawleyRESUMO
Sotos syndrome is a well-known overgrowth syndrome characterized by excessive growth during childhood, macrocephaly, distinctive facial appearance and learning disability. This disorder is caused by mutations or deletions in NSD1 gene. The aim of this study is to examine the relationship between the neuroimaging and clinical features of children with Sotos syndrome. Six Turkish children with Sotos syndrome were followed up about 3-7 years. The diagnosis was confirmed with molecular genetic analysis. We identified the pathogenic NSD1 mutation including three novel in all patients. All the patients had a characteristic facial gestalt of Sotos syndrome consisting of triangular face with prominent forehead, frontoparietal sparseness of hair and small nose. However, the degree of psychomotor and intellectual development was variable. Severe learning defect and speech delay were remarkable in two patients. The neuroimaging analysis showed abnormalities in four of six patients including bilateral large ventricles, thinning of the corpus callosum and persistent cavum septum pellucidum et vergae. Typical craniofacial appearance is the primary finding for the diagnosis of the disease even in the infantile period. However, the degree of psychomotor and intellectual development is very variable and does not correlate with the neuroimaging findings.
Assuntos
Anormalidades Craniofaciais/genética , Peptídeos e Proteínas de Sinalização Intracelular/genética , Proteínas Nucleares/genética , Síndrome de Sotos , Criança , Pré-Escolar , Anormalidades Craniofaciais/patologia , Feminino , Seguimentos , Histona Metiltransferases , Histona-Lisina N-Metiltransferase , Humanos , Masculino , Síndrome de Sotos/genética , Síndrome de Sotos/patologia , Síndrome de Sotos/fisiopatologia , TurquiaRESUMO
OBJECTIVE: Percutaneous coronary interventions (PCI) are the preferred treatment for coronary artery disease, even though the development of in-stent restenosis (ISR) continues to be an important complication. Neutrophil to lymphocyte ratio (NLR) is indicative of the inflammatory process and can predict the short- and long-term prognosis of cardiovascular diseases. We investigated the relationship between ISR development and neutrophil-lymphocyte ratio (NLR) in bifurcation lesions in stable coronary artery disease (CAD) patients. PATIENTS AND METHODS: We analyzed the clinical and angiographic data of 181 consecutive stable CAD patients who had undergone successful PCI to the true bifurcation lesion from January 2010-December 2012. Patients were divided into two groups based on the development of ISR (group 1, ISR -; group 2, ISR +). RESULTS: NLR(after) (p < 0.001) and NLRΔ (p < 0.001) were significantly higher in group 2. NLRΔ was found to be significant independent predictor of ISR in the multivariate logistic regression analysis. A NLRΔ level > 0.58 mg/dL had 81.8% sensitivity and 93.5% specificity for the prediction of ISR, as identified by the ROC curve. A NLR(after) level > 3.43 predicted ISR with 45.5% sensitivity and 95.8% specificity. The comparison of ROC curve analysis demonstrated that NLRΔ was the strongest independent predictor of ISR (p = 0.001). CONCLUSIONS: As a result, although drug eluting stent implantation is known to be recommended in the bifurcation lesion PCI in worldwide, we want to emphasize the usage of the NLR values in the prediction of ISR. So, we think that NLRΔ levels may be a useful marker for the prediction of ISR in patients who undergo bifurcation PCI.
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Reestenose Coronária/sangue , Reestenose Coronária/diagnóstico por imagem , Stents Farmacológicos/efeitos adversos , Linfócitos/metabolismo , Neutrófilos/metabolismo , Idoso , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico por imagem , Reestenose Coronária/etiologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea/efeitos adversos , Valor Preditivo dos Testes , RadiografiaRESUMO
BACKGROUND: Acute intermittent porphyria (AIP), a life-threatening form of the disease, is accompanied by several pain, mental and physical symptoms. AIMS: In this study, we evaluated the cyclicity of AIP and premenstrual syndrome (PMS) symptoms in 32 women with DNA-diagnosed AIP during their menstrual cycles, in northern Sweden. METHODS: The cyclicity of AIP symptoms and differences in them between the follicular and luteal phases, and the cyclicity of each symptom in each individual woman in different phases of her menstrual cycle were analysed with a prospective daily rating questionnaire. PMS symptoms were also evaluated in the patients on a daily rating scale. RESULTS: Of the 32 women, 30 showed significant cyclicity in at least one AIP or PMS symptom (P < 0.05-0.001). Back pain (10/32) was the most frequent AIP pain symptom and sweet craving (10/15) was the most frequent PMS symptom. Pelvic pain (F = 4.823, P = 0.036), irritability (F = 7.399, P = 0.011), cheerfulness (F = 5.563, P = 0.025), sexual desire (F = 8.298, P = 0.007), friendliness (F = 6.157, P = 0.019), breast tenderness (F = 21.888, P = 0.000) and abdominal swelling (F = 16.982, P = 0.000) showed significant cyclicity. Pelvic pain and abdominal swelling (rs = 0.337, P < 0.001) showed the strongest correlation. The age of women with latent AIP was strongly correlated with abdominal swelling during the luteal phase (rs = 0.493, P < 0.01). CONCLUSION: Our results suggest that the symptoms of AIP patients change during their menstrual cycles.
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Ciclo Menstrual/fisiologia , Porfiria Aguda Intermitente/diagnóstico , Adulto , Feminino , Inquéritos Epidemiológicos , Humanos , Pessoa de Meia-Idade , Periodicidade , Síndrome Pré-Menstrual/fisiopatologia , Estudos ProspectivosRESUMO
BACKGROUND: The aim of our study is to determine the incidence of single coronary artery (SCA). SCA is a rarely seen coronary anomaly in which the right coronary artery and the left main coronary artery arise from single aortic sinus. Although SCA has a benign course in most cases and its clinical significance is unknown, in some autopsy studies it was shown to be related to sudden cardiac death. MATERIALS AND METHODS: SCA patients detected among 215,140 coronary angiographies (CAG) performed between 1998 and 2013 in SANKO Hospital were included in our study. The classification of CAG was made according to the two different classifications defined by Smith and Lipton and colleagues. RESULTS: A total number of 215,140 patients who underwent routine CAG were included in the study, and SCA was detected in 67 (0.031%) patients. There were 6 (9%) type R-I, 23 (34%) type R-II, 10 (15%) type R-III, 16 (24%) type L-I and 12 (18%) type L-II patients according to the angiographic classification. CONCLUSIONS: SCA is rarely seen during routine cardiac catheterisation and its incidence is 0.014-0.066% in angiographic series. In our study, the incidence was shown to be similar to the previous studies.
RESUMO
AIM: To study signs of diabetic cardiomyopathy (DCM) in nondiabetic patients with controlled arterial hypertension (AH) and glycemic response during first hour of glucose tolerance test (GTT). MATERIAL AND METHODS: Patients (n = 47) with controlled AH were divided into 2 groups according to results of GTT with 75 g of glucose: patients of group 1 (n = 22) had glucose level ≤ 200 mg/dl during 1-st hour of GTT; other patients (n = 25) composed group 2. Examination of all patients included transthoracic echocardiography, ultrasound Dopplerography, tissue Doppler (TD) and 24-hour Holter ECG monitoring. Using data of these methods we calculated left ventricular (LV) mass and the following characteristics of mitral ring: E/A, TD e', TD a', TD s', TD e'/a'/. The following characteristics of heart rate variability were obtained: standard deviation of normal RR intervals (SDNN), low and high frequency (LF, HF) power, LF/HF ratio. RESULTS: Patients of group 2 had higher LV mass (229.5 ± 58.2 vs. 192.1 ± 50.6 g; p = 0.036), more pronounced changes of TD e'/a' (0.71 ± 0.25 vs. 1.06 ± 0.58; p = 0.011), lower SDNN both during day (85.4 ± 14.1 vs. 112.5 ± 31.3 ms, p = 0.007) and night (82.2 ± 22.1 vs. 105.9 ± 28.5 ms, p = 0,004) time, higher nocturnal LF/HF ratio (3.75 ± 4.02 vs. 1.72 ± 0.81, p = 0,029). CONCLUSION: In patients with controlled arterial hypertension (AH) and glycemic response during first hour of GCT we revealed various pronounced manifestations of DCM. These data constitute a basis for further studies.
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Diabetes Mellitus Tipo 2/complicações , Cardiomiopatias Diabéticas , Hipertensão/complicações , Disfunção Ventricular Esquerda/fisiopatologia , Adulto , Anti-Hipertensivos/uso terapêutico , Determinação da Pressão Arterial , Interpretação Estatística de Dados , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/fisiopatologia , Cardiomiopatias Diabéticas/sangue , Cardiomiopatias Diabéticas/diagnóstico , Cardiomiopatias Diabéticas/etiologia , Cardiomiopatias Diabéticas/fisiopatologia , Ecocardiografia , Eletrocardiografia Ambulatorial/métodos , Hipertensão Essencial , Feminino , Teste de Tolerância a Glucose , Humanos , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Ultrassonografia Doppler em CoresRESUMO
AIM: Coronary artery ectasia (CAE), is at least 1.5 fold dilatation of at least one coronary segment due to congenital or acquired causes. In this study, we aim to investigate the relation of CAE with microalbuminuria, which is a marker of endothelial dysfunction shown to be associated with increased cardiovascular mortality and morbidity. PATIENTS AND METHODS: Patients with CAE detected during routine coronary angiogram (CAG) and individuals with normal CAG findings have been included in our study. Urine albumin levels were measured by immunoturbidimetric method from samples collected in the morning. Patients with an albumin/creatinine (A/C) ratio less than 0.03 were normal and the ones between values 0.03-0.3 were considered to be microalbuminuric. Patients whose A/C ratios > 0.3 had macroalbuminuria and were excluded. RESULTS: A total of 105 patients (60 with CAE and 45 with normal CAG) were included in the study. Serum creatinine, low-density lipoprotein cholesterol and homocysteine levels were increased in the CAE group. Urine A/C ratio was 0.036 ± 0.040 in the CAE group and 0.018 ± 0.013 in the controls; the difference was statistically significant (p = 0.002). CONCLUSIONS: Blood homocysteine levels and urinary albumin levels are significantly increased in patients with CAE when compared to individuals with normal CAG. Microalbuminuria and hyperhomocysteinemia, two markers of endothelial dysfunction might be associated with pathophysiologic processes leading to CAE.
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Albuminúria/etiologia , Doença da Artéria Coronariana/urina , Albuminúria/sangue , Albuminúria/urina , Estudos de Casos e Controles , LDL-Colesterol/sangue , Angiografia Coronária , Doença da Artéria Coronariana/sangue , Creatinina/sangue , Dilatação Patológica , Feminino , Homocisteína/sangue , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
OBJECTIVES: The aim of this experimental study was to investigate the effects of mad honey (grayanotoxin, GTX), used in complementary medicine for a variety of purposes besides being food, on pain thresholds in normal mice as model for acute pain and diabetic mouse as model for neuropathic pain. METHODS: Hind paw withdrawal pain threshold to thermal stimulus was measured with a plantar analgesia meter in a mice model using healthy intact animals for acute pain and streptozotocin-induced diabetic animals for chronic neuropathic pain. Time and dose-dependent effects of intraperitoneally (i.p.) administered GTX were investigated in both acute and neuropathic pain. RESULTS: In the acute pain model, administration of GTX caused a dose- and time-dependent marked increase in the pain latency values. In diabetic mice, which had markedly increased threshold to pain, GTX (0.1 mg/kg, i.p.) restored the mean pain latencies by decreasing from the pre-GTX treatment values of 3.2 ± 0.6 to 3.0 ± 0.9s at 10 min, 3.2 ± 0.6s at 20 min, 3.4 ± 0.6s at 30 min, 2.6 ± 0.5s at 60 min and 2.4 ± 0.6s (p < 0.05) at 100 min. CONCLUSION: The results from this experimental study indicate that GTX exhibits significant analgesic activity and has potential benefits against painful diabetic neuropathy. This is compatible with the widespread use of GTX containing mad honey for alleviating pain. Further studies involving long-term applications are needed for a more decisive conclusion regarding the usefulness of GTX as an analgesic, especially in the treatment of painful neuropathy.
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Analgésicos/farmacologia , Neuropatias Diabéticas/induzido quimicamente , Dor/induzido quimicamente , Toxinas Biológicas/farmacologia , Animais , Diabetes Mellitus Experimental/complicações , Relação Dose-Resposta a Droga , Esquema de Medicação , Temperatura Alta/efeitos adversos , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Distribuição AleatóriaRESUMO
BACKGROUND: Prognosis evaluation of patients with choroidal and ciliary melanoma has experienced recent progress through tumour sampling and cytogenetic analysis of metastatic risk. By allocating tumor extension, height and linear basal diameter to defined TNM stages, an estimation of prognosis can also be made without invasive tissue sampling. METHODS: Therapeutic strategies of organ preserving irradiation using different sources have clearly come to the forefront. RESULTS: Due to microscopic haematogenous spreading of tumour cells prior to treatment, the metastatic risk following radiation of any form is not influenced in comparison to primary enucleation. CONCLUSION: However, metastatic disease still remains a fatal condition which currently may only be influenced by early detection and treatment of uveal melanomas.
Assuntos
Neoplasias da Coroide/diagnóstico , Neoplasias da Coroide/terapia , Testes Genéticos/métodos , Melanoma/diagnóstico , Melanoma/terapia , Neoplasias da Coroide/genética , Neoplasias da Coroide/patologia , Análise Citogenética/métodos , Humanos , Melanoma/genética , Melanoma/patologia , Procedimentos Cirúrgicos Oftalmológicos/métodos , Radioterapia/métodosRESUMO
OBJECTIVES: ST segment elevation myocardial infarction (STEMI) is an important cause of the morbidity and mortality in coronary artery disease. The aim of this study is to investigate the relationship between hematologic parameters and post primary PCI coronary no-reflow. PATIENTS AND METHODS: A total of 145 consecutive STEMI patients (mean age=58.2±12.3 years) and healthy volunteer admitted within 6 hours from symptom onset were enrolled to the study in the cardiology clinics. The STEMI patients were divided into 2 groups based on the Thrombolysis In Myocardial Infarction (TIMI) flow grade. No-reflow was defined as post-PCI TIMI Flow Grade 0, 1 or 2 and angiographic success was defined as TIMI Grade 3 Flow. RESULTS: Diabetes mellitus hypertension and smoking status were similar between groups. With respect to baseline laboratory status, fasting glucose, blood urea nitrogen, creatinine levels were not significantly different between groups. The neutrophil/lymphocyte (N/L) ratio was also significantly higher in STEMI group (7.1±4.6 vs. 2.3±1.7, p < 0.001). Additionally, N/L ratio was also significantly higher in No-reflow group (TIMI Flow Grade 0, 1 or 2) group (13.1±4.5 vs. 5.3±2.7, p < 0.001). CONCLUSIONS: The N/L ratio, which is cheaply and easily measurable laboratory data is independently associated with post primary PCI coronary no-reflow.