PubMed Health⌕ Search

Biomedical subjects

F Pecchio

Publications and source records attributed to F Pecchio.

At least 55 records · Page 3Linked to original sources
PubMed1986

CA 19-9 assay in differential diagnosis of pancreatic carcinoma from inflammatory pancreatic diseases.

Levels of a new carbohydrate antigen CA 19-9, which is a monosialoganglioside identified by a monoclonal antibody raised against colorectal carcinoma cells, were compared to carcinoembryonic antigen and tissue polypeptide antigen assays in 250 sera from patients with different pancreatic diseases including acute pancreatitis, chronic pancreatitis, and pancreatic cancer. All three tumoral markers were elevated at the onset of an acute pancreatic attack in a few patients. All but five patients with chronic pancreatitis displayed normal levels with each of the three markers; in two of these five cases an extraintestinal cancer was later discovered. CA 19-9 displayed higher sensitivity and predictive value of a negative result than the other two markers. The best operational characteristic of CA 19-9 was its high predictive value for a positive test which suggests a "ruling in" usage of it for pancreatic cancer diagnosis. CA 19-9 assay was of extreme value in disclosing both localized and metastatic pancreatic cancer while the other two markers were more often positive in the latter case. Of 71 cancer patients with positive markers, only four would have escaped a right diagnosis by assaying CA 19-9 alone.

Acute Disease↗
PubMed1985

[Gastrointestinal cancer antigen and carcinoembryonic antigen in chronic pancreatopathies and pancreatic tumors].

Sensitivity and specificity of the Ca 19-9 (GICA) marker was evaluated in series of pancreatic cancer patients, chronic pancreatitis patients and normal controls. When Ca 19-9 was compared with CEA, it was noted that the new marker was far more sensitive and specific than CEA (82% v. 52% sensitivity, 95% v. 80% specificity). GICA was found to be the best marker for pancreatic tumors.

Antibodies, Monoclonal↗
PubMed1985

[Comparison between the gastrointestinal tumor antigen and the carcinoembryonic antigen in diseases of the digestive tract].

Recently a glycolipid antigen known as gastrointestinal cancer antigen (GICA) has been proposed as a new seral marker of gastrointestinal and pancreatic tumours. This antigen is specifically recognised by a monoclonal antibody and biologically and immunologically distinguished by carcinoembryonic antigen (CEA). Out of 438 subjects including: 60 blood donors, 205 patients suffering from digestive tract tumours, subdivided into different organs 21 gastric ca's, 60 colon ca's, 100 pancreatic ca's and 24 liver cancers) 173 subjects with inflammatory gastrointestinal complaints, also divided by organ 18 gastric ulcers, 45 inflamed colons, 60 chronic pancreatitis and 50 liver cirrhosis). GICA and CEA radioimmunoassays were carried out (Sorin GICAK and CEAK) to evaluate sensitivity, specificity and predictive accuracy. Normal threshold levels were set at 30 ng/ml for CEA and 40 mu/ml for GICA. These levels represent the mean + 2DS of levels measured in 260 patients hospitalised for various benign and functional complaints and differ from cancer patient results by the largest amount. All blood donors, whether smokers or not, give lower values than these. Results show GICA gives a lower overall number of false positives than CEA (20% as against 9.6%). GICA diagnostic results were more accurate overall for the entire case sample examined. GICA gave higher percentage positives than CEA for individual tumour types: pancreatic ca (82% v 52%), liver cancer (70.8% v 20.8%) and gastric ca (47.6% v 33%). CEA appears to work better than GICA in the case of colorectal ca's (56% v 41%). Both markers were found to be more sensitive in the presence of tumours with metastases. GICA is the best currently available marker of pancreatic tumours thanks to its sensitivity, specificity and predictive accuracy. Although GICA gave good results in cases of liver cancer, these did not exceed those obtained with alpha foetoprotein. In the other cases of digestive tumours examined, a combination of GICA and CEA investigation techniques appears to be the best non-invasive method currently available for patient follow-up.

Antigens, Neoplasm↗
PubMed1982

[Humoral and cellular immune response to cryosurgery of benign and malignant lesions of the oral cavity].

The authors have evaluated general immunocompetence after cryosurgical treatment of 11 patients affected by benign oral lesions and of 17 patients affected by oral squamous carcinoma. Serum immunoglobulin levels, C3-C4, peripheral lymphocytes, E-rosette forming cells, lymphocyte response to PHA were analyzed before a single cryotreatment and 7 and 14 days after. In the patients affected by benign lesions the observed variations seem to suggest that in these cases cryosurgery has a merely mechanical action of extirpation of the lesion and the consequent extinction of the phenomena reactive to the same lesion. In cancer patients, cryosurgery modifies numerous immunological parameters mostly concerning the cell-mediate components.

Adult↗
PubMed1982

[Secondary immunological response to cryosurgery in various stages of oral cavity neoplasms].

The authors have evaluated general immunocompetence after cryosurgical treatment of 33 patients affected by oral squamous carcinoma. Patients have been divided into two groups: 17 of them were classifiable in 1st and 2nd stage and 16 of them in 3rd and 4th stages. Serum immunoglobulin levels, C3 - C4, peripheral lymphocytes, E-rosette forming cells, lymphocyte response to PHA were analyzed before a single cryotreatment 7 and 14 days after. The results indicate that immunological parameters vary in a significant way and can be constantly observed in 1st and 2nd stages, while the 3rd and 4th stages undergo no variations. Cryosurgery in the 1st and 2nd stages is able to modify, in particular, the parameters concerning cell - mediate immunity, although the phenomenon seems transitory, showing itself most on the seventh day.

Adult↗
PubMed1981

[Evaluation of serum BuChe activity during polychemotherapy based on COP and C-MOPP protocols].

The Authors have evaluated the serum cholinesterase activity in patients subjected to 2 different schemes of polychemotherapy: COP (CTX, VCR, Prednisone) and C-MOPP (CTX, VCR, PCZ, Prednisone). The two schemes involve the administration of cyclophosphamide that, as has already been proved, significantly lowers serum cholinesterase level after only a few hours. The Authors have observed that the combination of cyclophosphamide with other antiblastic drugs or a longer treatment have little influence on the down curve of the serum cholinesterase in relation to what they have observed after treatment with cyclophosphamide alone.

Cholinesterases↗
PubMed1981

[Variations of serum BuChe activity during C M F therapy].

As the Authors and Others have already demonstrated, cyclophosphamide leads to a rapid and prolonged decrease in the serum cholinesterase activity. In this work, the behaviour of the serum cholinesterase in patients subjected to C M F polychemotherapy (CTX, VCR, FU) has been studied. The grouping of patients on the basis of serum cholinesterase values before treatment has demonstrated that the enzymatic activity decrease arrives at level practically homogeneous. A month after interruption of therapy values equal to those at starting point have been observed.

Breast Neoplasms↗
PubMed1981

[Relationship of P 50 in normal subjects in physiological condition and their percentage of Hb-CO].

After a short review on the actual knowledge about the relationship between P50 of human blood in normal adults and newborns and their relative amount of Hb-CO, the Authors analyze a wide series of subjects in Whom the survey has been performed at the physiological saturations of Hb-CO. The results show that, a part from an usually high percentage of Hb-CO of still unknown origin in the newborn, the P50 of normal adults and newborns appear to be relatively stable and not shifted towards the right in spite of the progressive increasing of hypoxia induced by still physiological levels of Hb-CO.

Adolescent↗
PubMed1981

[Preliminary study on P50 and on other parameters correlated with hemoglobin function in normal subjects chosen at random].

In a wide survey on normal non-selected healthy adults, the Authors have found normal pHs in venous blood, a P50 slightly shifted to the left, in comparison with the mean values reported in other series for males and females, normal Hb amounts, normal 2,3-DPG levels, normal met-hemoglobin values and increased rates of Hb-CO. All these data and the possible relationship among them are discussed, with particular reference towards P50 and Hb-CO, which appears to be mainly raised, even if not only, in smokers people. At this regard the Authors hypothetize that if the four hemes of hemoglobin are fully saturated with CO, a right shifted oxy-hemoglobin dissociation curve of variable extent will be observed, whereas, if the hemes are not fully saturated, the curve could be shifted, more or less, towards the left. These two conditions could be coexisting in an unstable, non-enzymatic equilibrium, which could modify by itself the usual sigmoid shape (and the P50 values) of the whole blood oxygen affinity.

2,3-Diphosphoglycerate↗
PubMed1981

[Alpha fetoprotein in non-neoplastic liver diseases].

Seric alfa-FP has been studied in acute and chronic hepatitis and in hepatocellular carcinoma. Sixty five normal subjects, 62 cirrhoses, 10 active chronic hepatitis, 12 chronic persistent hepatitis, 4 primary biliary cirrhoses and 9 hepatomas have been examined for seric alfa-FP. Abnormal seric alfa-FP (> 10 ng/ml) values agree with literature data. It is likely that hepatocellular regeneration due to viral or inflammatory disorders, can produce formation of alfa-FP and other abnormal proteins fro a depression mechanism of sue regulator gene.

Adult↗
PubMed1981

[Assay of the carcinoembryonic antigen (CEA) in acute and chronic liver diseases and hepatocellular carcinoma].

Carcinoembryonic antigen (CEA) has been studied with a radioimmunoassay technique with an antiserum obtained from hepatic metastases of colonic cancer (Sorin Biomedica, Saluggia). The normal range of seric CEA varies from 0 to 10 ng/ml; 10 ng/ml is the higher value found in a smoker healthy subject. Seric CEA than 10 ng/ml has been found in 27% of cirrhoses, 39% of acute viral hepatitis (HBsAg+), 13.3% of chronic active hepatitis, 7.7% of chronic persistent hepatitis, 36% of alcoholic hepatitis and 100% of hepatomas. The diminished hepatic clearance of the antigen, or the derepression of its regulator gene, or the formation of CEA-like substances may cause the increase of seric CEA in hepatic diseases. The antiserum obtained from hepatic metastases of colonic carcinoma may explain the positivity in all the patients with hepatoma.

Acute Disease↗
PubMed1980

[Evaluation of some nonspecific immunological parameters in patients with oral cavity carcinoma undergoing cryosurgery].

The authors have evaluated general immunocompetence of 10 pts. after a cryosurgery treatment for oral squamous cell carcinoma. Serum immunoglobulin levels, C3 - C4, peripheral lymphocytes, E-rosette forming cells, lymphocyte response to PHA were analized before and after 7 and 14 days a single cryotreatment. Humoral immunity was scarcely modified by the cryosurgery; on the contrary a statistically significant augment of peripheral large lymphocytes (p < 0,0001), T-lymphocytes (p < 0,025) and lymphocyte response to PHA (p < 0,001) was found both after 7 and 14 days.

Aged↗