RESUMO
BACKGROUND: Simple card collection systems are becoming available for faecal immunochemical tests (FITs) as well as guaiac faecal occult blood tests (gFOBTs). FITs are now obtainable that allow quantitation of haemoglobin, so that the analytical detection limit can be set to give a positivity rate that is manageable in terms of the available colonoscopy. A combination of a card collection device and an automated FIT analytical system could be advantageous. METHODS: The quantitation of haemoglobin in samples collected on cards with a new analytical system and the relationship between faecal haemoglobin concentration and pathology were investigated in a cohort of gFOBT-positive individuals. RESULTS: All groups had large ranges of haemoglobin concentration and there was overlap between the groups. Median haemoglobin concentrations in participants with normal findings on colonoscopy (167), diverticular disease (43), hyperplastic polyps (41), low risk adenoma (63), higher risk adenoma (35) and cancer (27) were 13.5, 15.6, 16.8, 15.2, 65.6 and 168.9 ng/ml haemoglobin, respectively. Those with diverticular disease, hyperplastic polyps and low risk adenoma were not significantly different from the normal group (p>0.2), but those with higher risk adenoma had significantly higher concentrations (p<0.001), as did those with cancer (p<0.001). Receiver operating characteristic analysis demonstrates that the cut-off concentration can be set to give appropriate clinical characteristics; optimum sensitivity and specificity are achieved at 26.7 ng/ml. CONCLUSIONS: The haemoglobin in faeces on simple FIT card collection devices can be immunoturbidimetrically analysed quantitatively, and the concentration relates to the presence or absence of significant neoplastic disease.
Assuntos
Neoplasias Colorretais/diagnóstico , Hemoglobinas/análise , Sangue Oculto , Adenoma/diagnóstico , Idoso , Pólipos do Colo/diagnóstico , Colonoscopia , Diagnóstico Diferencial , Divertículo do Colo/diagnóstico , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Manejo de Espécimes/métodosRESUMO
Recombinant human erythropoietin has proved to be effective to treat anemia of end-stage renal disease (ESRD). The aim of this study was to assess the efficacy and safety profile of Epotin, a rHuEPO produced in the Middle East. One hundred thirty patients with Hct = 27%; Hb = 9 g/dL maintained on hemodialysis thrice weekly from 19centers in eight countries in the Middle East were recruited into this 13-week study. Depleted iron stores (TSTAT <20% and/or Serum ferritin < 100 microg/dL) were replenished prior to initiation of Epotin therapy, which was delivered intravenously in a dose of 150 U/kg body weight/week in three equal doses postdialysis and titrated according to hemoglobin (Hb) and hematocrit (Hct) response. Efficacy was assessed in terms of Hb/Hct response. Epotin raised the mean Hb level from 7.7 (+/- 1.2) g/dL to 12.0 (+/- 1.7) g/dL and Hct from 22.7 (+/- 4.1) % to 36.2 (+/- 5.7) % by week 13. The increase started to show significance at week 3. Targeting an absolute increase in Hb of 2.5 g/dL (Hct 7.5%) over a 13-week period, the success rate was of <85.71%. Segregating patients into subgroups of men and women and chronic ESRD versus recent ESRD failed to reveal a significant differences in either the severity of the anemia or the response to Epotin. Side effects were similar to other erythropoietins; no dropouts were reported. In conclusion, Epotin is effective to treat anemia in patients on maintenance hemodialysis with an acceptable safety profile. No difference in response was observed between men and women, nor between patients with different levels of chronicity of ESRD.
Assuntos
Anemia/tratamento farmacológico , Eritropoetina/uso terapêutico , Hematínicos/uso terapêutico , Falência Renal Crônica/complicações , Diálise Renal , Adolescente , Adulto , Anemia/etiologia , Epoetina alfa , Feminino , Ferritinas/sangue , Hematócrito , Humanos , Ferro/sangue , Falência Renal Crônica/terapia , Masculino , Oriente Médio , Proteínas RecombinantesRESUMO
Ten female and seventy two male patients suffering from ankylosing spondylitis were studied to evaluate differences between the two sexes. Low lumbar backache and inactivity stiffness were the commonest presenting complaints in females (8/10) as compared to males (34/72). They also had a later age of onset (25.4 + 6.16 yrs) compared to males (20.56 + 6.57 yrs). Females were found to be symptomatically milder with a more benign course of the disease. There were no significant differences in the frequency of extra-articular features and HLA B27 between males and females. A positive family history was more often seen in female ankylosing spondylitis (50%) than male (31.94%) patients.
Assuntos
Espondilite Anquilosante/fisiopatologia , Adolescente , Adulto , Fatores Etários , Dor nas Costas/fisiopatologia , Criança , Feminino , Humanos , Artropatias/fisiopatologia , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Espondilite Anquilosante/patologiaRESUMO
The cutaneous lesions in systemic sclerosis (SSc) and lupus erythematosus (LE) are pathologically distinct and may display separate cell adhesion receptors. We have scored lesional skin for the presence of cell adhesion molecules that may influence inflammatory and fibrotic processes in five patients with LE, six patients with diffuse scleroderma and four patients with morphoea. The immunohistological distribution, and the number and intensity of cells staining, were recorded for VCAM-1, ICAM-1, E-selectin, alpha 2 to alpha 6 and beta 2 integrins and HLA-DR. VCAM-1 staining intensity was increased on endothelium from lesions in LE compared with SSc (P = 0.05). Low-level VCAM-1 and E-selectin expression was present on endothelium from uninvolved skin including that from patients with morphoea. HLA-DR expression was increased on infiltrating mononuclear cells (P < 0.05) and keratinocytes in LE (P < 0.05) and the number of fibroblasts staining for ICAM-1 was increased in lesions from patients with SSc, although this did not reach statistical significance. Overall, with respect to endothelial adhesion events, our findings support an important role for VCAM-1 in sustaining chronic inflammation in cutaneous LE.