Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027651 (tumor)
 685,946 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The VX-2 carcinoma in 32 New Zealand white rabbits was studied morphologically with respect to the osseous effects induced by the innoculation and subsequent growth of tumour in the soft tissues over periods ranging from 1 to 5 weeks. Although more severe changes were noted in bones of tumor-bearing than in non-tumor-bearing limbs, effects could be seen in both experimental situations. Severe bone marrow hyperplasia was noted consistently in tumor-bearing animals. A marked increase in numbers of osteoclasts over control rabbit bones was observed along the surface of bones near and distant from the tumor. Resorptive changes were also noted in the cortex of tumor-bearing rabbits. The increase in osteoclast numbers was related chronologically to the development of hypercalcemia and was proportional to the degree of hypercalcemia at the time the animals died. The number of osteoclasts was inversely proportional to the serum creatinine. A diminution of osteoclast numbers was noted in the latter stages of the disease. These changes may be the morphologic expression of humoral hypercalcemia accompanying the VX-2 carcinoma.
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PMID:Changes in bone and bone marrow of rabbits bearing the VX-2 carcinoma. A comparison of local and distant effects. 86 13

Acute renal failure developed in nine of 78 patients who were subjected to hepatic artery ligation for nonresectable and extensive malignant tumor of the liver. Of those nine, six had hepatomas, one cholangiocarcinoma, one metastatic islet-cell carcinoma and one metastatic melanoma. Preoperative renal function as reflected in blood-urea-nitrogen and serum creatinine values was within normal limits. There were marked elevations of serum glutamic-oxalacetic transaminase and lactic dehydrogenase levels after hepatic artery ligation, an indication of massive ischemic injury of the tumor and the liver. A diagnosis of acute renal failure was established within 14 to 70 hours after hepatic artery ligation. In five patients, oliguric renal failure developed, and in four, high urinary output renal failure. In only three patients did systemic hypotension and hypovolemia precede acute renal failure. Seven of the nine patients died. Postmortem examination was done in five patients, and in only two was there evidence of renal tubular necrosis. The factors contributing to acute renal failure appear to be extensive involvement of the liver by tumor, presence of ascites and jaundice, occlusion of the portal vein and hyperuricemia. The presence of any one of the foregoing contraindicates the procedure.
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PMID:Acute renal failure after ligation of the hepatic artery. 95 59

Bilateral nephrectomy, renal perfusion and bench surgery have been used in the management of synchronous bilateral renal pelvic tumors in a 35-year-old man. The possibility of bilateral nephrectomy followed by hemodialysis and eventual transplantation was considered but was not done because we believe for the present time that the nature of the immune response and its importance in the pathogenesis of cancer are complicated and poorly defined. It is likely that immunosuppression may tip the balance toward the tumor. Bench surgery allowed us to perform radical resection of these urothelial tumors yet preserve enough renal tissue to sustain life. This patient is now enjoying an active life and has a blood urea nitrogen of 30 mg. per cent and a serum creatinine of 1.2 mg. per cent from the functioning third of the former right kidney.
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PMID:The treatment of bilateral synchronous renal pelvic tumors with Bench surgery. 114 35

We investigated the role of prostaglandins in the hypercalcemia associated with neoplasia. In patients with hypercalcemia and solid tumors the excretion of the major urinary metabolite of the E prostaglandins, 7 alpha-hydroxy-5, 11-diketotetranorprostane-1, 16-dioic acid (PGE-M), was significantly greater than normal, P LESS THAN 0.01 (median of 58.4 and 7.1 ng per milligram of creatinine respectively). Slightly elevated values were seen in normocalcemic patients with solid tumors (14.3 ng per milligram). The levels of the metabolite were normal in hypercalcemic patients with either hematologic neoplasia or primary hyperparathyroidism. Immunoreactive parathyroid hormone was undetectable in the plasma of all hypercalcemic patients with solid tumors. Inhibition of prostaglandin synthesis by aspirin or indomethacin reduced excretion of both the urinary metabolite and serum calcium in six hypercalcemic patients with solid tumors and elevated excretion of the metabolite. These findings support the concept that prostaglandins are mediators of the hypercalcemia caused by certain solid tumors.
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PMID:Prostaglandins as mediators of hypercalcemia associated with certain types of cancer. 118 22

This paper describes a case report of acute interstitial nephritis associated with Bufferin. A 15-year-old girl were referred to our hospital due to fever and renal dysfunction. Laboratory findings showed elevation of serum BUN and creatinine, and increased urinary beta 2-MG excreation. Light microscopic findings of her renal biopsy specimen revealed edema and numerous inflammatory cells in the interstitium, and minor alterations in glomeruli. The interstitial infiltrates consisted mainly of T cells and also monocytes/macrophages. Interstitial cells were labelled with antibodies to interleukin (IL)-1 and tumor necrose factor (TNF). Bufferin was positive by lymphocyte stimulation test. Thus, we considered that this drug was causative in this case. This observation suggests the participation of cell-mediated immune injury in drug induced acute interstitial nephritis.
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PMID:[A case of Bufferin induced acute interstitial nephritis--analysis of immune cells and cytokine]. 129 73

Congenital mesoblastic nephroma CMN is an extremely rare renal tumor in adults, basicly seem in the childhood and, similar in some aspects to Wilms tumors. We present herein the first primary CMN in an adult older than 40 years and review the literature update. Three years after his operation (1991) the patient is clinically and echographically free of hepatic or abdominal recurrences. He has good renal function as determine by renogram, IVP and a normal serum creatinine.
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PMID:[Congenital mesoblastic nephroma in the adult (the first case of primary tumor in an adult over 40 years of age)]. 131 57

It has been shown in phase II studies that 254-S, a new anticancer platinum complex, is effective in the treatment of various cancers. In order to more objectively evaluate the clinical usefulness of this compound, a randomized comparative study of 254-S plus VDS vs. CDDP plus VDS was conducted in patients with advanced NSCLC. 254-S or CDDP was intravenously administered at 90 mg/m2, at least 2 times at 4-week intervals. VDS was intravenously administered at 3 mg/m2 on Days 1 and 8 of each treatment of 254-S or CDDP. Of 136 patients registered, 121 (64 of the 254-S/VDS group and 57 of the CDDP/VDS group) were evaluable for tumor response (complete cases). There was no significant intergroup difference in the tumor response rate (254-S/VDS group: 12.5% [8/64], CDDP/VDS group: 15.8% [9/57]), nor by cancer staging, histological type or survival. As for toxic effects, leukopenia was significantly less frequent in the 254-S/VDS group while thrombocytopenia was significantly less frequent in the CDDP/VDS group. Nephrotoxicity such as an elevation of BUN and a decrease in serum creatinine was significantly less frequent in the 254-S/VDS group in spite of the lower volume hydration performed. In addition, nausea and vomiting as well as anorexia were observed with significantly lower incidences in the 254-S/VDS group despite the less frequent anti-emetic treatment. Based on these results, it was concluded that combination treatment with 254-S and VDS is a safe and useful regimen for treatment of NSCLC, generating antitumor effects equivalent to the CDDP/VDS regimen.
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PMID:[A randomized comparative study of 254-S plus vindesine (VDS) vs. cisplatin (CDDP) plus VDS in patients with advanced non-small cell lung cancer (NSCLC)]. 132 Aug 46

Bleomycin is a glycopeptide antibiotic with a unique mechanism of antitumor activity. The drug binds to guanosine-cytosine-rich portions of DNA via association of the "S" tripeptide and by partial intercalation of the bithiazole rings. A group of five nitrogen atoms arranged in a square-pyramidal conformation binds divalent metals including iron, the active ligand, and copper, an inactive ligand. Molecular oxygen, bound by the iron, can produce highly reactive free radicals and Fe(III). The free radicals produce DNA single-strand breaks at 3'-4' bonds in deoxyribose. This yields free base propenals, especially of thymine: cytotoxicity is cell-cycle-phase specific for G2 phase. In humans, bleomycin is rapidly eliminated primarily by renal excretion. This accounts for approximately half of a dose. In patients with renal compromise or extensive prior cisplatin therapy, the drug half-life can extend from 2 to 4 hours up to 21 hours. Thus, dose adjustments are needed when creatinine clearance is less than or equal to 3N mL/min. Finally, resistance to bleomycin in normal tissues can be correlated with the presence of a bleomycin hydrolase enzyme, which is in the cysteine proteinase family. The enzyme replaces a terminal amine with a hydroxyl, thereby inhibiting iron binding and cytotoxic activity. The low concentration of enzyme in the skin and lung may explain the unique sensitivity of these tissues to bleomycin toxicity. However, correlation of hydrolase levels with tumor cell sensitivity has thus far been negative.
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PMID:Bleomycin pharmacology: mechanism of action and resistance, and clinical pharmacokinetics. 138 41

We measured urinary levels of free L-fucose in healthy subjects, patients with benign diseases, and patients with cancer using an automated analyzer and a newly isolated L-fucose dehydrogenase, and evaluated the clinical usefulness of the results. The values obtained were corrected for urinary creatinine as micromoles per gram of creatinine. The cutoff value, set at the mean + 2SD for the healthy subjects, was 250 mumol/g.Cr. Patients with gallbladder cancer, bile-duct cancer, liver cancer, pancreatic cancer, or cirrhosis of the liver had significantly higher levels of L-fucose than the healthy subjects. The diagnostic sensitivity for these five diseases, taken together, was 68% (144/213). Specificity for the detection of cancer was calculated by use of false positives for patients with cholelithiasis, hepatitis, and pancreatitis: it was 73% (76/104). Diagnostic accuracy for these seven diseases taken together was therefore 69% (220/317). We compared the positive ratio of the L-fucose level with that of the tumor markers AFD and CA19-9. The positive ratio of an L-fucose value above the cutoff was higher than the positive ratio of either marker in bile-duct cancer, gallbladder cancer, liver cancer, and pancreatic cancer. The results suggested that the urinary levels of free L-fucose reflected the metabolism of sugar chains of glycoconjugates, and may be usefully clinically as a tumor marker.
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PMID:[Clinical assessment of urinary free L-fucose levels]. 140 61

During the last years interest has focused on the trophic effect of gastrin in colorectal carcinomas. Some reports indicated an increased serum level of gastrin in patients with colorectal adenomas or carcinomas. In a prospective study in 261 patients submitted to colonoscopy fasting serum gastrin concentrations were determined. 91 patients served as control, 89 patients had one or more adenomas, 55 patients suffered from a colorectal carcinoma, 17 had a benign, postoperative stenosis of the colon, and 9 had a chronic inflammatory bowel disease. All patients fulfilled the following criteria: No regular drug intake, no previous gastric or small bowel operation, no known ulcer disease, no abnormalities in serum calcium, creatinine, triglycerides, cholesterol and blood urea. Mean gastrin level was 86.63 +/- 23.8 pg/ml in the control, 84.57 +/- 25.1 pg/ml in the adenoma group and 84.6 +/- 24.4 pg/ml in the carcinoma group. No difference of serum gastrin levels were observed regarding sex, age, tumor stage and localisation.
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PMID:[Serum gastrin level in patients with colorectal adenoma or carcinoma]. 141 56


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