Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0038362 (stomatitis)
 8,852 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The FLEP regimen (5-FU, LV, ETP and CDDP) is a combination chemotherapy administered regionally and systemically for the control of both local and disseminated disease in intra- and extra-abdominal regions in patients with advanced and recurrent gastric cancer. Sixty-one patients with advanced and recurrent gastric cancer were entered into this study. The treatment regimen consisted of 5-FU at 370 mg/m2 (days 1 to 5, i.v. 24 h); LV at a dose of 30 mg (days 1 to 5, i.v. bolus); and ETP and CDDP each at 70 mg/m2 (days 7 and 21, ia 2 h). This regimen was repeated every four weeks. The overall response rate was 36.1% (22/61) and the 50% and median survival times were 10.23 and 11.80 months, respectively. The adverse events were Grade 3/4 leukocytopenia (18.0%), Grade 3/4 thrombocytopenia (4.9%), Grade 3 nausea and/or vomiting (3.3%) and Grade 3 stomatitis (1.6%). Of the 17 NAC patients, the six curability B patients showed a statistically higher survival rate than the curability C and unresected patients. Based on the encouraging response rate and the improvement in prognosis, we recommend the FLEP regimen for patients with primary gastric cancer. Neoadjuvant chemotherapy using the FLEP regimen should be performed with curative resection as an objective.
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PMID:[FLEP therapy for advanced and recurrent gastric cancer]. 1170 75

We describe a case of an HIV-seropositive patient presenting with a severe stomatitis that initially improved with anti-infective agents. Only 13 days after the onset of the stomatitis, the patient developed rapidly progressive constitutional symptoms and a cutaneous eruption. He was diagnosed with a Stevens-Johnson syndrome (SJS) caused by the antiretroviral drug nevirapine (NVP). Despite meticulous supportive care and withdrawal of all drugs, his situation worsened and developed into a toxic epidermal necrolysis (TEN), or Lyell's syndrome, complicated by a toxic hepatitis. Treatment with a novel combination of intravenous immunoglobulins (IVIG) and N-acetylcysteine (NAC) resulted in an exceptionally fast recovery. A literature research revealed no other cases of patients treated with both NAC and IVIG for the combination of TEN and toxic hepatitis. Because of the rapid clinical recovery, this approach merits further investigation. This case report also illustrates the importance of early suspicion of SJS when an HIV-infected patient treated with nevirapine presents with stomatitis.
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PMID:Nevirapine-induced toxic epidermal necrolysis and toxic hepatitis treated successfully with a combination of intravenous immunoglobulins and N-acetylcysteine. 1528 82

Mercury is among the most toxic heavy metals and has no known physiological role in humans. Three forms of mercury exist: elemental, inorganic and organic. Mercury has been used by man since ancient times. Among the earliest were the Chinese and Romans, who employed cinnabar (mercury sulfide) as a red dye in ink (Clarkson et al. 2007). Mercury has also been used to purify gold and silver minerals by forming amalgams. This is a hazardous practice, but is still widespread in Brazil's Amazon basin, in Laos and in Venezuela, where tens of thousands of miners are engaged in local mining activities to find and purify gold or silver. Mercury compounds were long used to treat syphilis and the element is still used as an antiseptic,as a medicinal preservative and as a fungicide. Dental amalgams, which contain about 50% mercury, have been used to repair dental caries in the U.S. since 1856.Mercury still exists in many common household products around the world.Examples are: thermometers, barometers, batteries, and light bulbs (Swain et al.2007). In small amounts, some organo mercury-compounds (e.g., ethylmercury tiosalicylate(thimerosal) and phenylmercury nitrate) are used as preservatives in some medicines and vaccines (Ballet al. 2001).Each mercury form has its own toxicity profile. Exposure to Hg0 vapor and MeHg produce symptoms in CNS, whereas, the kidney is the target organ when exposures to the mono- and di-valent salts of mercury (Hg+ and Hg++, respectively)occur. Chronic exposure to inorganic mercury produces stomatitis, erethism and tremors. Chronic MeHg exposure induced symptoms similar to those observed in ALS, such as the early onset of hind limb weakness (Johnson and Atchison 2009).Among the organic mercury compounds, MeHg is the most biologically available and toxic (Scheuhammer et a!. 2007). MeHg is neurotoxic, reaching high levels of accumulation in the CNS; it can impair physiological function by disrupting endocrine glands (Tan et a!. 2009).The most important mechanism by which mercury causes toxicity appears to bemitochondrial damage via depletion of GSH (Nicole et a!. 1998), coupled with binding to thiol groups ( -SH), which generates free radicals. Mercury has a high affinity for thiol groups ( -SH) and seleno groups ( -SeH) that are present in amino acids as cysteine and N-acetyl cysteine, lipoic acid, proteins, and enzymes. N-acetylcysteine and cysteine are precursors for the biosynthesis of GSH, which is among the most powerful intracellular antioxidants available to protect against oxidative stress and inflammation.Mercury and methylmercury induce mitochondrial dysfunction, which reduces ATP synthesis and increases lipid, protein and DNA peroxidation. The content of metallothioneines, GSH, selenium and fish high in omega-3 fatty acids appear to be strongly related with degree of inorganic and organic mercury toxicity, and with the protective detoxifying mechanisms in humans. In conclusion, depletion of GSH,breakage of mitochondria, increased lipid peroxidation, and oxidation of proteins and DNA in the brain, induced by mercury and his salts, appear to be important factors in conditions such as ALS and AD (Bains and Shaw 1997; Nicole eta!. 1998;Spencer eta!. 1998; Alberti et a!. 1999).
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PMID:Mercury toxicity and neurodegenerative effects. 2451 7