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121.
WM WILLIAMS JJ NICHOLAS PB NUNGURRAYI CR NAPURRULA 《Journal of paediatrics and child health》1996,32(4):344-346
Abstract: A retrospective study of Community Health Service patient records revealed 10 cases of urolithiasis in Aboriginal children under 5 years of age in a remote central Australian Aboriginal community over a 4 year period, out of a total under-5 population estimate of 62. The highest attack rate was in the 0–2 age group, where nearly one in 10 children presented per year. All children had significant associated morbidity. Two children underwent pyelolithotomy.
Aboriginal children in the remote arid zone study community suffer exceptionally high rates of urolithiasis. Inadequate diet, dehydration and recurrent infectious disease are factors in pathogenesis. Further study may elucidate aetiology, but the implications of these data for improving environmental conditions and health service delivery in Aboriginal communities are urgent. 相似文献
Aboriginal children in the remote arid zone study community suffer exceptionally high rates of urolithiasis. Inadequate diet, dehydration and recurrent infectious disease are factors in pathogenesis. Further study may elucidate aetiology, but the implications of these data for improving environmental conditions and health service delivery in Aboriginal communities are urgent. 相似文献
122.
123.
LFP Ribeiro PC Malachias PB Junior V Baldissera 《Journal of Science and Medicine in Sport》2004,7(1):123-127
This study aimed to analyse the validity of glucose minimum speed (GMS) for lactate minimum speed (LMS) assessment during running and their relationship to endurance performance. Eight male trained runners (28.7 +/- 9.0 years) volunteered to take part in this study and underwent an official 10-km road race and a track lactate minimum test (LMT) (0.5-km sprint plus 6 x 800 m from 87 to 98% of maximal 3-km speed). Lactate and glucose minimum speeds were considered those related to the minimum blood lactate and glucose concentrations respectively attained during the graded phase of LMT. Significant correlations (p < 0.05) were found between LMS and GMS (r = 0.72) and LMS and 10-km performance (r = 0.83), but not between GMS and 10-km performance (r = 0.49). No significant differences (p > 0.05) were found between LMS (4.75 +/- 0.08 m/s), GMS (4.73 +/- 0.07 m/s) and 10-km mean speed (4.79 +/- 0.17 m/s). In conclusion, we found GMS to be a good predictor of LMS during track LMT, LMS being well related to endurance running performance. 相似文献
124.
Confirming partial small bowel obstruction is often a diagnostic challenge. In this case report, 4-mm solid radiopaque markers were used in 4 patients to show partial small bowel obstruction. Results of enteroclysis were normal in 2 of the 4 patients, and the markers were used to challenge suspected partial obstruction. The markers coalesced in the region of the partial obstruction, which was confirmed at surgery. Enteroclysis is the examination of choice in the diagnosis of partial small bowel obstruction. However, examinations with false- negative results can occur, particularly with adhesive and/or intermittent obstructions. The use of radiopaque markers in these cases proved an effective and useful method of establishing the diagnosis of partial small bowel obstruction, particularly in the 2 cases in which enteroclysis results were normal. Prospective studies are needed to establish the feasibility of this novel technique. (Gastroenterology 1996 Jun;110(6):1958-63) 相似文献
125.
Hypocomplementemia with low C1s-C1 inhibitor complex in systemic lupus erythematosus 总被引:1,自引:0,他引:1
Ninety-three serum and plasma samples from 45 patients with systemic lupus erythematosus were analyzed for the complex formed by C1s and its inhibitor, as well as for C3, C4, C4a desarginine, and staphylococcal protein A-bound immune complexes. There were statistically significant correlations between C1s-C1 inhibitor complex and CH50, between C1s-C1 inhibitor complex and C4, and between C1s-C1 inhibitor complex and C4a desarginine. Serial studies were performed on 24 patients over a period of 6 months. Seven of 21 patients with hypocomplementemia had persistently normal levels of C1s-C1 inhibitor complex, 7 had transiently abnormal levels of C1s-C1 inhibitor complex, and 7 had sustained abnormal levels of C1s-C1 inhibitor complex. Two of 3 pregnant patients with normal levels of complement had abnormal levels of C1s-C1 inhibitor complex. Staphylococcal protein A-bound immune complexes demonstrated no correlation with any of the complement assays. Complement activation, as measured by C1s-C1 inhibitor complex, is often a transient phenomenon in systemic lupus erythematosus patients with persistent hypocomplementemia. 相似文献
126.
PB Lockhart MT Brennan PC Fox HJ Norton DB Jernigan LJ Strausbaugh 《Clinical infectious diseases》2002,34(12):1621-1626
There is debate concerning use of antibiotic prophylaxis before invasive dental procedures for patients at risk of acquiring distant site infection (DSI). We determined the opinions and practices of infectious disease consultants (IDCs) regarding antimicrobial prophylaxis to prevent DSIs that result from invasive dental procedures by conducting a survey of the 797 members of the Infectious Diseases Society of America Emerging Infections Network (477 members [60%] responded). Ninety percent of respondents closely follow the American Heart Association guidelines for antibiotic prophylaxis for patients with valvular heart disease who undergo invasive dental procedures. In contrast, few IDCs recommend prophylaxis for patients with lupus erythematosus, poorly controlled diabetes mellitus, dialysis catheters or shunts, cardiac pacemakers, or ventriculoperitoneal shunts. Twenty-five percent to forty percent of respondents recommended prophylaxis for prosthetic vascular grafts, orthopedic implants, or chemotherapy-induced neutropenia. We conclude that IDCs differ considerably in their assessment of the need for prophylaxis for patients who have noncardiac risk factors for DSI. These differences underscore the need for definitive studies to delineate appropriate candidates for antimicrobial prophylaxis in dental practice. 相似文献
127.
Comparison of two direct assays for platelet-associated IgG (PAIgG) in assessement of immune and nonimmune thrombocytopenia 总被引:2,自引:0,他引:2
A number of methods have been developed to measure platelet-associated IgG (PAIgG). The antiglobulin consumption assay directly quantitates IgG on the platelet and is sensitive and specific. A fluorescent anti- IgG assay has recently been described and has the advantage of simplicity. We compared the results of these two PAIgG assays in immune and nonimmune thrombocytopenia and nonthrombocytopenic controls. The antiglobulin consumption assay was negative in 61 of 62 and the fluorescent negative in 54 of 62 assays in nonthrombocytopenic controls, and they were negative in 11 of 13 and 8 of 13 assays, respectively, in nonimmune thrombocytopenic patients. The antiglobulin consumption assay was positive in 54 of 58 and the fluorescent positive in 24 of 58 assays of patients with immune thrombocytopenia (ITP and SLE). The overall sensitivity and specificity of the antiglobulin consumption assay was 94% and 95% and of the fluorescent assay was 44% and 82%. 相似文献
128.
Sustained high levels of circulating chaperoned interleukin-6 after active specific cancer immunotherapy 总被引:2,自引:0,他引:2
May LT; Patel K; Garcia D; Ndubuisi MI; Ferrone S; Mittelman A; Mackiewicz A; Sehgal PB 《Blood》1994,84(6):1887-1895
In a phase 1 study of recombinant interleukin-6 (rIL-6) in patients with advanced solid tumors (n = 15), we discovered that the endogenous IL-6 levels, in pretreatment plasma or serum samples, were distributed into two groups. One set of patients (designated "type 1"; n = 9) was characterized by low plasma IL-6 levels (48 to 1,700 pg/mL) as measured using enzyme-linked immunosorbent assays (ELISA) for IL-6. In the second set of patients (designated "type 2"; n = 6), IL-6 ELISAs showed high levels of plasma IL-6 (50 to 600 ng/mL). Neither group had detectable B9 hybridoma cell growth factor activity associated with the IL-6 in their pretreatment plasma or serum. Plasma C-reactive protein (CRP) levels were markedly elevated in type II patients suggesting that the circulating IL-6 was biologically active in vivo. In both groups of patients there was a small but significant increase in B9 activity in the plasma within three hours after rIL-6 administration (n = 5). Gel filtration profiles showed that circulating IL-6 in type 1 patients, 15 to 120 minutes after rIL-6 administration was of approximate mass 20 to 40 kD, whereas in type 2 patients, the IL-6 before and after exogenous rIL-6 administration was indistinguishable and was of an approximate mass of 200 kD. IL-6 immunoaffinity purification of the 200 kD complexes showed these to contain multiple isoforms of IL-6 (14 to 31 kD) and the soluble IL-6 receptor (sIL-6R; 50 to 55 kD). A distinguishing clinical history was that all of the type 2 patients had been actively immunized with an anti-idiotypic monoclonal antibody (MoAb) (MK2-23) 3 to 12 months before initiation of this study for advanced melanoma. An analysis of the plasma IL-6 content in other melanoma patients (n = 16) during antiidiotypic MoAb immunization indicated that marked (up to 600 ng/mL) and sustained (several months) elevations of circulating "chaperoned" IL-6 were induced by active immunization regimens. 相似文献
129.
The mechanism of isolated thrombocytopenia in septicemia is unknown, but compensated disseminated intravascular coagulation (DIC) has been suggested as a possible cause. To investigate this possibility, platelet counts and sensitive assays for in vivo thrombin and plasmin generation, including fibrinogen gel chromatography and fibrinopeptide A (FPA) assays, were obtained on 31 septicemic patients. Fifteen of 17 patients with gram-negative septicemia and 8 of 14 patients with gram- positive septicemia had thrombocytopenia. Platelet survival studied demonstrated a decreased platelet survival. In 11 of 12 patients with severe thrombocytopenia (platelet count less than 50,000mul), there was laboratory evidence of intravascular coagulation. In contrast, there was little evidence of intravascular coagulation in 8 of 11 patients with moderate thrombocytopenia (platelet counts 50,000 to less than 150,000/mul) or in 7 of 8 patients with normal platelet counts. This report indicates that while DIC accompanies thrombocytopenia in many patients with severe thrombocytopenia, there is frequently little evidence for intravascular coagulation in patients with moderate thrombocytopenia. It is apparent that factors other than intravascular thrombin must play a role in producing the thrombocytopenia of septicemia. 相似文献
130.