Paraneoplastic brainstem encephalitis in a patient with exceptionally long course of a metastasized neuroendocrine rectum neoplasm.
Multiple genes were differentially expressed in response to celecoxib treatment. Statistical analysis of microarray data indicated 24 genes were up-regulated and 4 genes down-regulated as a consequence of celecoxib treatment. Gene changes e.g. survivin, SRP72kDa, were associated with promoting apoptotic cell death, enhancement of antioxidant processes and tumour suppressor function (p73 and cyclin B1 up-regulation).
Phytotherapy is a popular treatment option in cases of benign prostatic hyperplasia (BPH), with many different herbal products being used for the treatment of this condition. Withania coagulans (WC) is an herbal medicine that has shown anti-tumoral, anti-inflammatory, and antioxidant effects.
To investigate the roles of hypoxia-inducible factor 1α (HIF-1α), cyclooxygenase-2 (Cox-2) and its product, Prostaglandin E2 (PGE2), in the mechanisms underlying hypoxia-induced survivin expression in human umbilical vein endothelial cells (HUVECs) and to examine the effect of celecoxib, a selective Cox-2 inhibitor, on survivin expression.
A sulfonamide ADR pattern was derived from the most extensive textbook source of ADRs and applied to the WHO database for the three groups of sulfonamide drugs: short- and intermediate-acting sulfonamides, and sulfasalazine. ADRs reported three or more times for each of these groups were included in a 'sulfonamide template' comprising 19 ADRs relating to the skin, the blood, the liver, and anaphylaxis. This template was then applied to celecoxib and rofecoxib.
Five celecoxib (CXB) acylamide sodium salts, MP-CXB, Cy-CXB, Bz-CXB, CBz-CXB and FBz-CXB were synthesized and characterized. Two simple, fast and validated RP-HPLC methods were developed for simultaneous quantitative determination of the amides and celecoxib in aqueous and biological samples and LOD and LOQ were ≤13.6 and ≤40ng/mL, respectively. The solubility and logP(app) of the amides, in relevant media, were determined. The chemical hydrolysis, at 60, 70 and 80°C, of MP-CXB was studied at GIT-relevant pH (1.2, 6.8 and 7.4) and of CY-CXB was studied at skin relative pH (5.4 and 7.4). Significant hydrolysis was observed for MP-CXB at pH 1.2 only with half-lives 28.28, 11.64 and 3.53h at 60, 70 and 80°C, respectively, with extrapolated half-lives of 2060 and 443h at 25 and 37°C, respectively. The hydrolysis of all amides was studied in rat live homogenate and only Cy-CXB was hydrolyzed with half-life of 3.79h. The hydrolysis of MP-CXB and Cy-CXB was studied in human plasma and neither was hydrolyzed. It is finally suggested that hydrophobic interactions plays a role in the binding of susceptible acylamides to the hepatic hydrolyzing enzyme since only amides with saturated hydrocarbon chains underwent hydrolysis.
Fifty male Sprague Dawley adult 3- 3.5 months old rats were used as animal model in this study. The tongue SCC was induced by a daily administration of 30 ppm 4-NQO, in drinking water, for 8 months. The rats in case groups received dietary or topical CCB. Tongue Specimens were prepared for histopathological and immunohistochemical (Ki-67) staining and or TUNEL assay were examined. Values are expressed as mean +/- SEM and analyzed with Npar Kruscal Wallis and one-way ANOVA tests. p < 0.05 was considered significant.
A decision analysis model was designed over 6 months using two measures of effectiveness: 1) number of upper gastrointestinal (GI) adverse events averted; and 2) number of patients who achieved perceptible pain relief. Separate analyses were conducted for all patients and for those who did not respond to acetaminophen. Outcome probabilities were obtained from a comprehensive review of randomized controlled trials and observational studies. Costs were derived from actual resource utilization of OA patients.
Dried latex produced an inflammatory response that was maximum at 6 h. It was associated with the accumulation of protein-rich fluid, leucocytes and PGE2 production. It also resulted in granulation of the pouch cavity that was a maximum on day 3. COX-2 expression could be detected in the granulation tissue on day 1 and it increased progressively up to day 5. The anti-inflammatory drugs celecoxib and dexamethasone significantly attenuated the inflammatory response and inhibited COX-2 expression in granulation tissue.
A phase I study of fixed-dose 5-fluorouracil (FU) and leucovorin (LCV), with excalating doses of the selective cyclooxygenase-2 (COX-2) inhibitor celecoxib, was conducted in 16 patients with advanced colorectal adenocarcinoma. At doses typically used to treat arthritis patients (100-200 mg po BID), celecoxib did not increase toxicities expected from the chemotherapy alone. 5-FU and leucovorin did not affect COX-2 inhibition by celecoxib. Preliminary data suggest it is safe to combine celecoxib with standard chemotherapeutic agents, in treatment of patients with colorectal cancer.
Celecoxib can inhibit the proliferation of different liver cancer cell lines both in vitro and in vivo, and therefore may serve as an important candidate drug for prevention and treatment of hepatocellular carcinoma.