151
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Giampietro O, Clerico A, Cruschelli L, Penno G, Navalesi R. Microalbuminuria in diabetes mellitus: more on urine storage and accuracy of colorimetric assays. Clin Chem 1989. [DOI: 10.1093/clinchem/35.7.1560] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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152
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Dominici C, Negroni A, Romeo A, Castello MA, Clerico A, Scopinaro M, Mauro F, Raschellà G. Association of near-diploid DNA content and N-myc amplification in neuroblastomas. Clin Exp Metastasis 1989; 7:201-11. [PMID: 2920475 DOI: 10.1007/bf01787024] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Seventeen neuroblastomas at different clinical stages were analysed for their N-myc copy number and flow cytometrically determined DNA content. Aneuploidy was found in 11 patients (65 per cent), whereas the remaining were near-diploid. N-myc amplification was found significantly (P less than 0.05) confined to near-diploid tumors (3 out of 6 cases). This finding indicates a very selective mechanism of oncogene amplification which is independent of gross chromosomal imbalance and limited to specific loci in the human genome. Association of near-diploidy and age at diagnosis older than 24 months was also demonstrated (P less than 0.05). Thus, flow cytometric analysis of DNA content together with N-myc gene dosage allowed us to distinguish two different subsets of neuroblastoma tumors: the first one aneuploid, with single-copy N-myc, usually observed in patients younger than 24 months with localized or IV-S clinical stages; the second one near-diploid, with frequent N-myc amplification, usually observed in patients older than 24 months with advanced clinical stages.
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153
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L'Abbate A, Emdin M, Piacenti M, Panichi V, Biagini A, Clerico A, Del Chicca MG, Contini C, Palla R, Donato L. Ultrafiltration: a rational treatment for heart failure. Cardiology 1989; 76:384-90. [PMID: 2688877 DOI: 10.1159/000174522] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Patients with late-stage congestive heart failure with significant fluid overload respond well to ultrafiltration. The response is relatively long-standing and includes enhanced responsiveness to diuretics. Ultrafiltration is simple and highly cost effective. Furthermore, it possesses many advantages over massive or drastic pharmacological therapy. In the following paper, we report our own experience and review the world literature.
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154
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Dominici C, Petrucci F, Caroli S, Alimonti A, Clerico A, Castello MA. A pharmacokinetic study of high-dose continuous infusion cisplatin in children with solid tumors. J Clin Oncol 1989; 7:100-7. [PMID: 2909663 DOI: 10.1200/jco.1989.7.1.100] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The pharmacokinetics of cisplatin were investigated in 14 patients, aged 10 months through 13 years who were affected by solid malignant tumors. High-dose cisplatin (40 mg/m2/d) was administered with repeated courses for five days as a continuous intravenous (IV) infusion. Total platinum (Pt) levels in plasma and urine and free (protein-unbound) Pt levels in plasma ultrafiltrate were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Areas under the concentration v time curve (AUCs) for mean total and free Pt levels were calculated for the 120-hour period of infusion and for the 384 and 120 hours following its completion, respectively. Half-lives of total and free Pt in plasma were calculated for the 216 hours following completion of infusion in five patients at their first course. The fraction of the administered Pt dose excreted in urine as Pt was determined for the five-day period of infusion and seven-day period after its completion. A total of 36 courses were studied. Maximum average Pt levels were reached after 120 hours of infusion: at the first course, 3.22 and 0.17 micrograms/mL for total and free Pt, respectively. Platinum levels declined according to a biexponential model, with initial half-lives of 18.3 and 16.9 minutes, and terminal half-lives of 81.9 and 59.0 hours as determined for total and free Pt, respectively. In the second and third courses studied there was a progressive increase in mean Pt plasma levels. Consequently, the free drug exposure as measured by AUC increased in all patients with repeated courses: 47.7% for the second and 124.4% for the third course, when compared with the first. At the same time, the mean fraction of the dose excreted in the urine for the 12-day period considered, was 44.1% for the first course, 36.2% for the second, and 28.4% for the third. The progressive enhancement of tissue exposure to the free cytotoxic drug, resulting from a reduced renal clearance of Pt with sequential courses of cisplatin, produced mainly increased toxicity while therapeutic effect progressively diminished.
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155
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Giampietro O, Clerico A, Gregori G, Bertoli S, Del Chicca MG, Miccoli R, Lucchetti A, Cruschelli L, Navalesi R. Increased urinary excretion of digoxin-like immunoreactive substance by insulin-dependent diabetic patients: a linkage with hypertension? Clin Chem 1988; 34:2418-22. [PMID: 3197278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Excretion of digoxin-like immunoreactivity (DLIS) was measured by RIA in timed overnight urine collections from 91 normotensive nondiabetic subjects and 104 normotensive insulin-dependent diabetic (IDDM) patients. The mean +/- SD DLIS excretion rate for the diabetic patients significantly exceeded that for the controls (73 +/- 41 vs 63 +/- 36 pg/min, P = 0.024). In both groups, the mean DLIS excretion rates for men were significantly higher (P = 0.0014, P = 0.006) than for women. In the controls, the DLIS excretion rate significantly correlated with the urinary excretion rate of creatinine (P less than 0.01), Na+ (P less than 0.05), and K+(P less than 0.05), and with the subjects' body weight (P less than 0.01), body mass index (P less than 0.05), and systolic blood pressure (P less than 0.05). In the diabetics, the DLIS excretion rate was significantly correlated with body weight (P less than 0.05) and with urinary excretion rates for albumin (P less than 0.01), creatinine (P less than 0.01), Na+ (P less than 0.05), and K+(P less than 0.05). Our data indicate that: (a) increased amounts of a cardiac glycoside-like substance (or a group of substances) are excreted in the urine of IDDM patients; (b) the urinary excretion of DLIS seems to depend on glomerular filtration rate and physiocochemical properties of glomerular membrane, as well as on subjects' body mass; and (c) because cardiac glycoside-like substances may increase peripheral vascular resistance, increased urinary excretion of DLIS by IDDM patients may indicate a tendency to develop hypertension.
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156
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Giampietro O, Clerico A, Gregori G, Bertoli S, Del Chicca MG, Miccoli R, Lucchetti A, Cruschelli L, Navalesi R. Increased urinary excretion of digoxin-like immunoreactive substance by insulin-dependent diabetic patients: a linkage with hypertension? Clin Chem 1988. [DOI: 10.1093/clinchem/34.12.2418] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Excretion of digoxin-like immunoreactivity (DLIS) was measured by RIA in timed overnight urine collections from 91 normotensive nondiabetic subjects and 104 normotensive insulin-dependent diabetic (IDDM) patients. The mean +/- SD DLIS excretion rate for the diabetic patients significantly exceeded that for the controls (73 +/- 41 vs 63 +/- 36 pg/min, P = 0.024). In both groups, the mean DLIS excretion rates for men were significantly higher (P = 0.0014, P = 0.006) than for women. In the controls, the DLIS excretion rate significantly correlated with the urinary excretion rate of creatinine (P less than 0.01), Na+ (P less than 0.05), and K+(P less than 0.05), and with the subjects' body weight (P less than 0.01), body mass index (P less than 0.05), and systolic blood pressure (P less than 0.05). In the diabetics, the DLIS excretion rate was significantly correlated with body weight (P less than 0.05) and with urinary excretion rates for albumin (P less than 0.01), creatinine (P less than 0.01), Na+ (P less than 0.05), and K+(P less than 0.05). Our data indicate that: (a) increased amounts of a cardiac glycoside-like substance (or a group of substances) are excreted in the urine of IDDM patients; (b) the urinary excretion of DLIS seems to depend on glomerular filtration rate and physiocochemical properties of glomerular membrane, as well as on subjects' body mass; and (c) because cardiac glycoside-like substances may increase peripheral vascular resistance, increased urinary excretion of DLIS by IDDM patients may indicate a tendency to develop hypertension.
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157
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Paci A, Balzan S, Cocci F, Niedermeyer HP, Clerico A. The specific 3H-ouabain binding to Na+/K+-ATPase of the human placental tissue is inhibited by newborn plasma extracts. Steroids 1988; 52:363-4. [PMID: 2854924 DOI: 10.1016/0039-128x(88)90148-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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158
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Nuti A, Clerico A, Del Chicca MG, Giraldi C, Piccini P, Bonuccelli U. Clinical usefulness of creatine kinase BB determination by a RIA method in serum of patients with cerebrovascular accidents. THE JOURNAL OF NUCLEAR MEDICINE AND ALLIED SCIENCES 1988; 32:226-30. [PMID: 3230407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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159
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Castello MA, di Paolo A, Clerico A, Zanesco L, Comelli A, Vecchi V, Cordero di Montezemolo L, Balducci D, Donfrancesco A. [Burkitt's lymphoma. Experience of 8 Italian centers]. ANALES ESPANOLES DE PEDIATRIA 1988; 29 Suppl 34:101-4. [PMID: 3214013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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160
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Giampietro O, Miccoli R, Clerico A, Penno G, Cruschelli L, Palmieri L, Di Palma L, Gregori G, Anichini R, Bertoli S. [Early diagnosis of diabetic nephropathy. Significance and clinical usefulness of albuminuria and enzymuria]. MINERVA ENDOCRINOL 1988; 13:187-201. [PMID: 2905762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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161
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Giampietro O, Clerico A, Miccoli R, Cruschelli L, Di Palma L, Navalesi R. Albuminuria estimated from proteinuria in diabetics. Is it a real alternative in clinical practice? DIABETES RESEARCH (EDINBURGH, SCOTLAND) 1988; 8:39-43. [PMID: 3224494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
While proteinuria detectable by dip-sticks is the hallmark of overt diabetic nephropathy, urinary albumin excretion (UAE) above normal but Albustix-negative (so-called microalbuminuria) is the main characteristic of the preproteinuric phase of the diabetic renal disease. Reliable measurement of UAE requires very sensitive and accurate methods, such as radioimmunoassay (RIA), which, however, are not suitable for routine UAE analysis. The Coomassie Brilliant Blue dye binding method has been suggested to be a simple and economical way of indirectly measuring albuminuria in diabetic patients. In the present paper, we compared the chemico-clinical characteristics of a RIA method with those of the Coomassie dye binding method, in order to verify if it is really possible to calculate albuminuria from proteinuria (and vice versa) by a simple linear regression equation, as previously suggested. The RIA has shown a better sensitivity and accuracy in comparison to the dye binding method. Our study suggests that there is not a linear relationship between proteinuria and albuminuria in diabetic patients. Indeed, the ratio between the total proteinuria, as measured with the dye method, and the albuminuria, as measured by a specific and sensitive RIA, varies greatly in diabetic patients with or without glomerular nephropathy. While the dye binding method appears the best procedure for the assay of total microproteinuria, since it is precise, cheap and feasible, the RIA, due to its high sensitivity and specificity, is more suitable for early and accurate detection of microalbuminuria, as well for the close follow-up of subjects at risk of developing overt diabetic nephropathy.
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162
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Ceccamea A, Dominici C, Martino F, Palmieri G, Clerico A, Cappelli CA, Castello MA. [Pulmonitis caused by aspiration of hydrocarbons. Histological and ultrastructural study of a case in childhood]. Minerva Pediatr 1988; 40:233-7. [PMID: 3173275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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163
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Clerico A, Giampietro O, Gregori G, Del Chicca MG, Bertoli S, Miccoli R, Navalesi R. Excretion of digoxin-like immunoreactivity in urine of normal subjects: correlations with excretion of creatinine and electrolytes. Clin Chem 1988; 34:554-6. [PMID: 3349607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To verify whether there is a variation in the 24-h urinary excretion of digoxin-like immunoreactivity (DLIS) in humans, we studied 18 normal adults, who collected their urines for 24-h in several portions. We then measured DLIS (by means of a sensitive RIA method), creatinine, sodium, and potassium concentrations in the urine samples. The mean urinary excretion rate for DLIS in the complete 24-h collection was 84.8 (SD 31.3) pg/min. The mean DLIS urinary excretion rate calculated for overnight collections was significantly lower than those of afternoon collections (P less than 0.01) and the 24-h collection (P less than 0.05). Significant positive correlations were found between urinary DLIS and excretion rates for creatinine (r = 0.347, P = 0.0016), Na+ (r = 0.232, P = 0.038), and K+ (r = 0.323, P = 0.003), respectively. Our data suggest that urinary excretion of DLIS is higher during "active" hours of the day, especially in the afternoon, than at rest, during the night.
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164
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Clerico A, Giampietro O, Gregori G, Del Chicca MG, Bertoli S, Miccoli R, Navalesi R. Excretion of digoxin-like immunoreactivity in urine of normal subjects: correlations with excretion of creatinine and electrolytes. Clin Chem 1988. [DOI: 10.1093/clinchem/34.3.554] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
To verify whether there is a variation in the 24-h urinary excretion of digoxin-like immunoreactivity (DLIS) in humans, we studied 18 normal adults, who collected their urines for 24-h in several portions. We then measured DLIS (by means of a sensitive RIA method), creatinine, sodium, and potassium concentrations in the urine samples. The mean urinary excretion rate for DLIS in the complete 24-h collection was 84.8 (SD 31.3) pg/min. The mean DLIS urinary excretion rate calculated for overnight collections was significantly lower than those of afternoon collections (P less than 0.01) and the 24-h collection (P less than 0.05). Significant positive correlations were found between urinary DLIS and excretion rates for creatinine (r = 0.347, P = 0.0016), Na+ (r = 0.232, P = 0.038), and K+ (r = 0.323, P = 0.003), respectively. Our data suggest that urinary excretion of DLIS is higher during "active" hours of the day, especially in the afternoon, than at rest, during the night.
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165
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Gualdi GF, Di Biasis C, Caterino M, Castello M, Clerico A. [Diagnostic imaging in the evaluation of abdominal masses in childhood]. LA CLINICA TERAPEUTICA 1988; 124:227-31. [PMID: 2974336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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166
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Clerico A, Cambi A, Del Chicca MG, Cecchini L, Giaconi S. Urinary excretion of digoxin-like immunoreactivity after physical exercise. Clin Chem 1988. [DOI: 10.1093/clinchem/34.1.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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167
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Giampietro O, Miccoli R, Clerico A, Di Palma L, Bertolotto A, Anichini R, Cristofani R, Navalesi R. Urinary albumin excretion in normal subjects and in diabetic patients measured by a radioimmunoassay: methodological and clinical aspects. Clin Biochem 1988; 21:63-8. [PMID: 3345601 DOI: 10.1016/s0009-9120(88)80114-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We have developed a radioimmunoassay method (RIA) to measure urinary albumin excretion. We determined the albumin excretion rate (AER) (micrograms/min) of 122 healthy subjects and 145 diabetic patients (115 type I, 30 type II). The results indicate that the RIA is sensitive (0.39 +/- 0.08 mg/L), precise (CV 5-8%), and gives reliable results on previously frozen urine samples. The distribution of the AER values in healthy subjects and diabetic patients was not normal. It was normalized by log or square-root transformation of the data. Seventy-three percent of diabetic patients lay within the normal range (0.6-10.6 micrograms/min). Twenty percent could be considered "at risk" to develop overt diabetic nephropathy because their albuminuria exceeded a threshold level of 15 micrograms/min chosen previously as the cutoff value for microalbuminuria. We found no correlation between AER and glycated hemoglobin, and only a weak correlation between AER and diabetes duration in type I diabetic patients.
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168
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Clerico A, Cambi A, Del Chicca MG, Cecchini L, Giaconi S. Urinary excretion of digoxin-like immunoreactivity after physical exercise. Clin Chem 1988; 34:215. [PMID: 3338178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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169
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Clerico A, Strigini F, del Chicca MG, Melis GB, Balzan S, Fruzzetti F, Bernardini G, Fioretti P. Endogenous digitalis-like factor in pregnant and non-pregnant women. THE JOURNAL OF NUCLEAR MEDICINE AND ALLIED SCIENCES 1988; 32:33-8. [PMID: 2841434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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170
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Clerico A. Digoxin-like immunoreactivity, endogenous cardiac glycoside-like factor(s) and natriuretic hormone: more than a hypothesis. THE JOURNAL OF NUCLEAR MEDICINE AND ALLIED SCIENCES 1987; 31:341-56. [PMID: 2832557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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171
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Giampietro O, Clerico A, Cruschelli L, Miccoli R, Di Palma L, Navalesi R. Measurement of urinary albumin excretion rate (AER) in normal and diabetic subjects: comparison of two recent radioimmunoassays. THE JOURNAL OF NUCLEAR MEDICINE AND ALLIED SCIENCES 1987; 31:321-6. [PMID: 3443883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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172
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Bonuccelli U, Nuti A, Del Chicca MG, Giraldi C, Boncompagni L, Clerico A. Serum levels of B subunit creatine kinase isoenzymes measured by a RIA method in patients with brain tumors and stroke. Preliminary results. ACTA NEUROLOGICA 1987; 9:169-77. [PMID: 3630788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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173
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Giampietro O, Miccoli R, Clerico A, Di Palma L, Bertolotto A, Anichini R, Caricato F, Navalesi R. [Importance of radioimmunologic measurement (RIA) of urinary albumin in the early diagnosis of diabetic nephropathy]. MINERVA ENDOCRINOL 1987; 12:137-42. [PMID: 3614167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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174
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Clerico A, Ghione S, Del Chicca MG, Balzan S. Problems in standardization of digitalis-like substance assays by means of competitive immunological methods. Clin Chem 1987. [DOI: 10.1093/clinchem/33.2.340] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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175
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Clerico A, Ghione S, Del Chicca MG, Balzan S. Problems in standardization of digitalis-like substance assays by means of competitive immunological methods. Clin Chem 1987; 33:340-1. [PMID: 3802524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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