Guest guest Posted June 1, 2008 Report Share Posted June 1, 2008 My Commentary > Air Borne Toxic Spores, created by Fungi, due to the formation of Mold, caused by Water Damaged Buildings...and just like strains of bacteria, which have become stronger and more resistant to anti-biotics, (notice that...it's not because of comprimized immune systems) ...the many strains of Fungi may be lifting weights behind our backs. How would we know??? Have any recent " Unbiased Studies " been done across the board lately??? The " Industries " in the Good Ole U.S.of A. " Have Comprimized OUR Immune Systems " by repeatedly ignoring an illness that would infringe on their (bloody money) OR better known as KICK-BACKS!!!! Below are excerpts. The full article can be found at: http://tinyurl.com/57hr2a Invasive fungal infections *The number of life-threatening, invasive fungal infections has risen dramatically over the last 20 years. Data collected over the 12 years up to 1992 show that the frequency of invasive fungal infections as judged after death by unselected autopsies had risen approximately 14 fold. *When the diagnosis is made late, treatment is not as effective and the mortality is high. *Asthma and sinusitis are two of the commonest reasons for US patients to visit a doctor. Antifungals: Where are we headed? *The antifungals market: current situation There are only 4 classes of established antifungal drugs on the market - polyenes (e.g. amphotericin , azoles (e.g. fluconazole and itraconazole), allylamines (e.g. terbinafine) and the newly introduced echinocandins (e.g. caspofungin). Of these classes, only three are used to treat systemic fungal infections. Today's market for systemic antifungal drugs that can used to treat invasive fungal infections is estimated to be about $5 billion worldwide. It is dominated by the azoles, the most successful of which is Pfizer's Diflucan (fluconazole), which was first launched in the mid-1980s and now enjoys sales of over $1billion per year. Fluconazole succeeded in displacing amphotericin for the treatment of invasive Candida infections; J & J's Sporanox (itraconazole) suffered from lack of an iv formulation for years. The toxicity problems of amphotericin have been ameliorated to some extent by the development of liposome formulations, the most successful of which is Gilead's Ambisome, though these formulations are very costly. At the same time new azoles with improved spectrum and activity have appeared. Pfizer's Vfend (voriconazole) is soon to be launched. Schering's posaconazole will make further inroads into the amphotericin market. A new class of antifungal drug, the echinocandins, has recently appeared on the market. The first representative, Merck's Candidas (caspofungin), was launched early in 2002 for salvage therapy for invasive aspergillosis, for which it showed superiority over amphotericin, but the drug's distinguishing feature is its fungicidal activity against the more common Candida species. The second echinocandin, Fujusawa's Funguard (micafungin) was launched in 2002 (Japan only) and closely resembles Merck's product. Formulation remains a problem. The echinocandins and the various amphotericin formulations are all administered by intravenous infusion and there seems little prospect of developing oral formulations. Only the azoles and terbinafine have oral forms. The current iv formulation of the azoles useful for aspergillosis cannot be given to patients with poor renal function, limiting their use. Both routes of administration are important for the ideal treatment of invasive fungal infections, particularly for aspergillosis. The iv route is used for the acute phase (14 to 28 days) and is followed by prolonged oral therapy (months or years) to suppress disease. Long- term oral prophylaxis with an azole in at-risk patients is commonplace. Drug interaction issues are a major impediment to the use of the azoles voriconazole, itraconazole and posaconazole. The interactions with cancer chemotherapy agents and immunosuppressants are particularly difficult to handle clinically. The problem of drug resistance is less serious than that seen with antibacterials. Resistance does occur but because it is not transferable it is more manageable. On the other hand each year new pathogenic, mainly filamentous, fungi are identified, highlighting the need for broad spectrum coverage. Despite the commercial success of the azoles and the introduction of the echinocandins mortality of invasive fungal infections remains high, particularly in those caused by filamentous fungi. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.