Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0036690 (sepsis)
 59,461 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Herein is presented a case of carcinosarcoma of the pancreas in an 82-year-old woman, analyzed on immunohistochemistry and K-ras sequence. The tumor, which arose in the pancreas head, was removed on pancreaticoduodenectomy. The patient died, however, of disseminated intravascular coagulation syndrome from postoperative sepsis 13 days later. Microscopically, the tumor consisted of malignant epithelial (well-differentiated adenocarcinoma cells) and mesenchymal (spindle-shaped tumor cells) components. The adenocarcinoma cells had positive immunostaining for cytokeratin AE1/AE3, cytokeratin 7, epithelial membrane antigen (EMA), CEA and carbohydrate antigen 19-9 (CA 19-9), while focal staining of these proteins was observed in the sarcomatous cells. In contrast, the sarcomatous cells had diffuse immunostaining for vimentin, CD10 and p53, while these proteins were not expressed in the ductal adenocarcinoma cells. These findings support the dual characteristics of a carcinosarcoma. DNA sequencing of the present case indicated point mutations of K-ras in both codons 12 and 34 on exon 2. The latter mutation is likely to correlate with the sarcomatous characteristics of this tumor. The tumor cells had specific and diffuse positive staining for CD10 and p53, with features characteristic of rapid growth.
 ...
PMID:Immunohistochemistry and K-ras sequence of pancreatic carcinosarcoma. 1880 Oct 90

Cholangiocarcinoma is an uncommon adenocarcinoma with poor prognosis. Although the 1-year survival has increased over time, the 5-year survival has not shown any significant change (less than 5%). Cure can only be expected from surgical resection of early stage tumours but most patients initially present with advanced disease. Cancer cachexia, liver failure, and recurrent sepsis due to biliary obstruction are among the main causes of mortality. Patients' prognosis is strongly related to radical surgery and complete resection is the most effective therapy; the location within the biliary tree (proximal versus distal) has no impact on survival when a complete resection is achieved despite the fact the rate of resectability is up to 70% in case of distal cancer and 15-20% for high bile ducts tumours. Prognosis of cholangiocarcinoma remains poor even with aggressive surgical therapy because of the high incidence of local or regional recurrence and distant metastasis. Based on these data many questions need an answer: is there a role for adjuvant chemotherapy or radiotherapy? Neoadjuvant treatments provide best results? There is a standard therapy in unresectable or metastatic cholangiocarcinoma? This report tries to answer to frequently asked questions that the readers are faced with their patients every day (from diagnostic procedures to palliative treatment) and tries to suggest useful information for their professional practice.
 ...
PMID:Cholangiocarcinoma. 1897 70

Systemic sclerosis (scleroderma) is a connective tissue disorder of unknown aetiology characterised by immune abnormalities, which has been related to an increased risk of malignancy. Lung cancer is the most prevalent among these patients. We present a clinical case of a 42 years old non smoker female with systemic sclerosis. She presented progressive general health status worsening and an exudative pleural effusion, with no evidence of infection or malignancy. Chest high resolution computed tomography revealed pulmonary fibrosis. Bronchoscopy, bronchial and bronchoalveolar lavage were normal. Extra- -pulmonary malignancies were excluded. Pleural nodularities were found on pleuroscopy and the biopsy was compatible with lung adenocarcinoma. Chemotherapy was then started, which complicated with febrile neutropenia, sepsis and patient death 12 days after. The purpose of this case report is to bring attention to the relationship, although rare, between systemic sclerosis and lung cancer, stressing the importance of adequate pulmonary surveillance in these patients.
 ...
PMID:[Lung adenocarcinoma associated with systemic sclerosis: a case report]. 1914 91

A 14 year-old Bangladeshi girl presented with high fever, painful swellings in the neck, anorexia, weight loss and night sweating. On examination she had multiple enlarged and tender cervical lymph nodes. Other systems were normal. Laboratory investigations for sepsis and autoimmune diseases were negative. Initial fine needle aspiration and cytology of affected lymph node was suggestive of tubercular lymphdenitis. But she did not respond to anti-tubercular treatment. Kikuchi-Fujimoto disease was diagnosed from the histopathological appearance of excised lymph node. She completely recovered with symptomatic treatment. Kikuchi-Fujimoto disease, also called Kikuchi's disease or histiocytic necrotizing lymphadenitis is a rare, benign but enigmatic disease of unknown aetiology. The disease is self-limited and has an excellent prognosis. Its recognition is crucial because it can be mistaken for systemic lupus erythematosus, malignant lymphoma, tubercular lymphadenitis or even, for metastatic adenocarcinoma. Clinicians' and pathologists' awareness of this disease may help prevent misdiagnosis and inappropriate treatment.
 ...
PMID:Kikuchi-Fujimoto disease. 1918 59

Tyrosine kinase (TK)-mediated phosphorylation regulates signal transduction pathways resulting in the expression of a variety of inflammatory genes. Inhibition of TK activity in vivo has been shown to increase survival in a lethal model of murine endotoxemia, suggesting a novel therapeutic approach to inflammation and circulatory shock. We examined the role of TK activity on the expression of the inducible nitric oxide (NO) synthase (iNOS). Under resting conditions, iNOS is not expressed in human cells. In response to various proinflammatory stimuli, however, iNOS expression is upregulated, resulting in high-output NO synthesis. iNOS-derived NO plays a critical role as a cytotoxic effector species and has been implicated in the pathogenesis of many clinical inflammatory conditions, including inflammatory bowel disease, arthritis, transplant rejection, diabetes, and sepsis. We examined the signaling pathways governing iNOS expression in monolayers of DLD-1 cells, a human epithelial cell line derived from an intestinal adenocarcinoma. Induction of iNOS transcription in interferon-gamma-primed cells by treatment with lipopolysaccharide, Salmonella sp., or interleukin-1beta was potently inhibited by pretreatment with genistein, an isoflavone derived from the soy species genistin. Other isoflavones, such as genistin, daidzein, and daidzin, were not inhibitory. TK inhibition by genistein had no effect on the expression or nuclear translocation of the transcription factors interferon regulatory factor-1 and nuclear factor-KB, respectively, both of which have been implicated in transcriptional regulation of the human iNOS gene. Nuclear run-on analysis demonstrated that the effect of genistein on iNOS messenger RNA expression was not at the level of transcription, suggesting that posttranscriptional regulation of iNOS messenger RNA might be TK dependent. Isoflavones, such as genistein, are useful tools to dissect regulatory pathways in vitro and in vivo and may have potential use as novel antiinflammatory therapeutic agents.
 ...
PMID:Isoflavone-mediated inhibition of tyrosine kinase: a novel antiinflammatory approach. 1928 74

Greater than 50% of patients with esophageal carcinoma are found to be incurable at the time of diagnosis, leaving only palliative options. Self-expanding metal stents (SEMs) are effective for relieving symptoms and complications associated with esophageal carcinoma and improving quality of life. We undertook a retrospective analysis to evaluate the experience of palliative esophageal stenting for symptomatic malignant dysphagia in our institution over a period of 7 years. Between January 1999 and January 2006, 126 patients who received SEMs for malignant dysphagia were identified using an upper gastrointestinal specialist nurse clinician database. Data were obtained from patient case notes, endoscopy, histopathology, radiology, and external agency databases. Of the 126 identified, 36 patients were excluded from the analysis. A number of variables including age, sex, presenting complaints, type of stent, indications of stenting, success or failure of stent insertion, survival rate, and complication rate were analyzed. Of the 90 patients, 55 (61%) were male and 35 (39%) were female. The mean age of patients was 70.79 (range 40-97) years. The predominant presenting complaints were dysphagia (n = 81) and weight loss (n = 48). The indication for stenting was worsening dysphagia in all patients. Tumors were confined to the distal esophagus and esophagogastric junction in 73 patients (81%), and the mid-esophagus in 17 (19%). Adenocarcinoma was identified in 61 patients (67.8%) and squamous cell carcinoma in 29 (32.2%). Stenting numbers were comparable in endoscopic and radiologic groups (47 vs. 43), with successful stent deployment in 89 patients. The 7- and 30-day mortality was 9% (n = 8) and 28% (n = 25), respectively. Comparable numbers of early deaths were seen in both radiologic (n = 13) and endoscopic (n = 12) groups. Causes of early inpatient death included hemorrhage (n = 5), pneumonia (n = 7), exhaustion (n = 2), cardiac causes (n = 3), perforation (n = 1), and sepsis (n = 1). The number of patients with complications was 41 (45.6%), 25 in the surgical group and 15 in the radiologic group; the difference was not significant (P = 0.13). The mean survival time was 92.5 (0-638) days and median survival time was 61 days. A subgroup of patients with complete dysphagia (score 4) gained a mean survival of 59 days. Those patients receiving adjuvant chemotherapy or radiotherapy survived significantly longer than those receiving stenting alone (152.8 days vs. 71.8 days). There is no significant difference in complications or survival when using endoscopic or radiologic methods to deploy SEMs in patients with inoperable esophageal cancer. Mortality is low; however, the morbidity rate is significant. Patients receiving adjuvant chemotherapy or radiotherapy, in addition to stenting, survived significantly longer than those with a stent only.
 ...
PMID:Outcome of palliative esophageal stenting for malignant dysphagia: a retrospective analysis. 1930 13

An invasive process in the pancreas was found in a 60-year-old woman and a 50-year-old man with abdominal symptoms. Generally, such findings turn out to be adenocarcinoma. However, these patients had lymphoma. Primary pancreatic lymphoma or localization of lymphoma in the pancreas are rare and chemotherapy may be curative. Therefore, obtaining tissue for histopathological confirmation of the diagnosis is very important. Both patients underwent chemotherapy. The first patient was in complete remission one month after the last chemotherapy cycle. In the second, the disease went into remission, but he suddenly died of sepsis after the fourth chemotherapy cycle.
 ...
PMID:[An invasive process in the pancreas: sometimes lymphoma]. 1981 77

Although rare, orbital metastatic tumors may be the initial presentation of an asymptomatic primary carcinoma. We report a rare case, with clinicopathological correlation, of metastatic pancreatic adenocarcinoma, presenting first in the orbit with symptoms of diplopia, blurring of vision and supraorbital ache. Computed tomography and magnetic resonance imaging of the orbit showed a left solid intraconal tumor with peripheral rim enhancement. The tumor demonstrated hypointensity on both T1- and T2-weighted sequences. Excisional biopsy was performed and histopathology confirmed a metastatic adenocarcinoma. Subsequent gastrointestinal imaging and tumor markers revealed an asymptomatic pancreatic adenocarcinoma, with multiple liver metastases. Our patient developed hepatobiliary sepsis and passed away 44 days after diagnosis. This case highlights the role of early biopsy of atypical orbital tumors in the localization of an asymptomatic primary carcinoma.
 ...
PMID:Asymptomatic pancreatic adenocarcinoma presenting as an orbital metastatic tumor. 2070 87

An entomopathogenic bacterial strain SCQ1 was isolated from silkworm (Bombyx mori) and identified as Serratia marcescens via 16S rRNA gene analysis. This strain produces a red pigment that causes acute septicemia of silkworm. The red pigment of strain SCQ1 was identified as prodigiosin analogue (PGA) with various reported biological activities. In this study, we found that low concentration of PGA showed significant anticancer activity in human lung adenocarcinoma A549 cells, but has little effect in human bone marrow stem cells, in vitro. By exposure to different concentrations of PGA for 24 h, morphological changes and the MTT assay showed that A549 cell line was very sensitive to PGA, with IC(50) value about 2.2 mg/L. Early stage of apoptosis was detected by flow cytometry while A549 cells were treated with PGA for 4 and 12 h, respectively. The proportion of dead cells was increased with treatment time or the concentrations of PGA, but it was inversely proportional to that of apoptotic cells. These results indicate that PGA obtained from strain SCQ1 induces apoptosis in A549 cells, but the molecular mechanisms of cell death are complicated, and the S. marcescens strain SCQ1 may serve as a source of the anticancer compound, PGA.
 ...
PMID:Apoptosis of human lung adenocarcinoma A549 cells induced by prodigiosin analogue obtained from an entomopathogenic bacterium Serratia marcescens. 2071 67

An 86 year old male with a four-day history of nonspecific gastrointestinal symptoms was found on colonoscopy to have evidence of sigmoid colon obstruction and possible perforation. Emergent operative exploration revealed diffuse peritonitis, sigmoid perforation, adjacent dense adhesions, and a foreign body protruding through the perforated area. Pathologic examination showed the foreign body to be a sliver of bone consistent with chicken bone and the sigmoid subacute perforation to be associated distally with a circumferential ulcerated obstructing mass, microscopically seen to be transmurally infiltrating adenocarcinoma, signet-ring cell type. There was extensive acute and organizing peritonitis, 100% Escherichia coli was cultured from peritoneal fluid, and the patient died two days postoperatively with sepsis and hypotension. This appears to be the fifth reported case of colonic perforation resulting from foreign body perforation due to previously undiagnosed adenocarcinoma. The four previously reported cases were all deeply invasive adenocarcinoma of sigmoid colon, and the foreign bodies included three chicken/poultry bones and a metallic staple. These five cases are highly unusual examples of a potentially lethal malignant neoplasm being clinically revealed by a usually (but not always) innocuous event, the ingestion of a small foreign body.
 ...
PMID:Colonic perforation resulting from ingested chicken bone revealing previously undiagnosed colonic adenocarcinoma: report of a case and review of literature. 2133 12


<< Previous 1 2 3 4 5 6 7 8 9 10