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| | Beta Lactam Consensus Document |
 | | In clinical practice, continuous infusion of beta-lactam antibiotics may be attempted in individual patients with gram-negative bacilli infections that have failed to respond the standard intermittent infusion method. | | | Despite these successes, there are few randomized human clinical trials that have compared the efficacies of beta-lactams administered either by continuous infusion or by intermittent injection, which turned to be at least equally effective or with a slightly higher response rate for the constant-infusion regimen. | | | In general, beta-lactam antibiotics within the range of concentrations commonly achieved, demonstrate increased bacterial killing only until a finite point is reached; the optimal bactericidal action reportedly occurs at approximately a threshold value of four to five times the minimal inhibitory concentration (MIC) for the infecting organism. |
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http://www.boomer.org/pkin/consensus/bl.html
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| | United States Patent Application: 0050089947 |
| | The information can be useful in selecting appropriate anti-infective therapies for the treatment of infections, in providing epidemiological information about microorganisms, in antibiotic research, and in other fields of biological research such as genetics and enzymology. | | | [0002] Physicians and veterinarians often prescribe antibiotics for their sick patients on the basis of antibiotic interaction tests that presumably determine the inhibitory activity of antibiotics against the infectious microorganism. | | | The preincubation procedure thereby invalidates the interpretive tables that are necessary to determine antibiotic interaction or resistance. |
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http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1="20050089947".PGNR.&OS=DN/20050089947&RS=DN/20050089947
(6733 words)
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| | 66053.030814&ELEMENT_SET=DECL |
| | The physical dispersion of the beta-lactam antibiotic and/or the beta-lactamase inhibitor (or the pharmaceutically acceptable salt thereof) within the polymer backbone can be accomplished using any suitable technique known to those of skill in the art, provided the resulting polymer matrix can effectively degrade under physiological conditions to release the beta-lactam antibiotic | | | Using this guidance, it is possible to select beta-lactam antibiotics and beta- lactam inhibitors for use in the polymers of the invention, and select whether they can be chemically incorporated in the backbone of the polymers, appended to the polymers, or dispersed in the polymers. | | | In the polymers of the invention, the beta-lactam antibiotic and the beta- lactamase inhibitor are not the same compound (i. |
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http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=03/66053.030814&ELEMENT_SET=DECL
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| | UpToDate Patient information: Allergy to penicillin and other antibiotics |
| | He or she requires a beta-lactam antibiotic to treat a life-threatening condition for which no other alternative antibiotic is appropriate. | | | However, penicillin G and other beta-lactam antibiotics can be taken if the skin test is negative. | | | Skin testing should not routinely be performed in people who are at high risk for an anaphylactic reaction (show table 1), unless a beta lactam medication needs to be used within the next 24 hours and no other alternative medication is available. |
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http://patients.uptodate.com/topic.asp?file=al_asthm/4604
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| | Appropriate Prescribing of Oral Beta-Lactam Antibiotics |
| | The effectiveness of an individual cephalosporin depends on its ability to overcome the mechanisms of resistance that bacteria have developed to combat beta-lactam antibiotics. | | | The benefits of beta-lactam antibiotics in the treatment of bronchitis, skin and soft tissue infections, and urinary tract infections are less clear in the evidence-based literature. | | | Because of all the drugs that are available to treat common infections in the primary care setting, choosing an antibiotic can be difficult. |
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http://www.p-e-g.de/Research_News/10092000-6.html
(3469 words)
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| | Beta-lactam antibiotic - Wikipedia, the free encyclopedia |
| | If β-lactamase production is inducible, then failure to use the most appropriate β-lactam antibiotic therapy at the onset of treatment will result in induction of β-lactamase production, thereby making further efforts with other β-lactam antibiotics more difficult. | | | In particular, choosing appropriate β-lactam antibiotic therapy is highly important against organisms with inducible β-lactamase expression. | | | All β-lactam antibiotics are bactericidal, and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls. |
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http://www.wikipedia.org/wiki/Penicillin_derivatives
(762 words)
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| | FindArticles search for "Cephalosporins" |
| | Abstract Incision and drainage combined with antibiotic therapies form the backbone of managing uncomplicated skin and skin structure infections (uSSSIs). | | | To the Editor: Baddour and colleagues' prospective study design and large numbers of subjects help to confirm that treatment of bacteremic pneumococcal... | | | Optimal antibacterial treatment of uncomplicated skin and skin structure infections: applying a novel treatment algorithm |
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http://www.findarticles.com/p/search?tb=art&qt=Cephalosporins
(775 words)
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| | Preventing Antibiotic Residues in Milk |
| | Screening tests were evaluated by FDA for six antibiotics in the beta lactam family: penicillin, ampicillin, amoxicillin, cloxacillin, cephapirin, and ceftiofur. | | | Screening tests which detect the beta lactam family of antibiotics were the first to be evaluated. | | | It is the producers' management practices and their exercise of control in antibiotic therapy programs which can prevent residues in the milk supply. |
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http://www.ces.ncsu.edu/depts/foodsci/ext/pubs/antibioticresidues.html
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| | MSD - TIENAM - |
| | There is some clinical and laboratory evidence of partial cross-allergenicity between TIENAM and the other beta-lactam antibiotics, penicillins and cephalosporins. | | | Before therapy with TIENAM, careful inquiry should be made concerning previous hypersensitivity reactions to beta-lactam antibiotics. | | | TIENAM consists of two components: (1) imipenem, the first of a new class of beta-lactam antibiotics, the thienamycins; and (2) cilastatin sodium, a specific enzyme inhibitor that blocks the metabolism of imipenem in the kidney, and substantially increases the concentration of intact imipenem in the urinary tract. |
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http://www.msd-egypt.com/product/tienam.html
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| | ANTIBIOTIC_RESISTANCEm.html |
| | When the beta-lactam antibiotic binds to the PBPs, transpeptidation is inhibited, peptidoglycan synthesis is blocked, and the cell dies. | | | Resistance to penicillin is due to inactivation of antibiotic by beta-lactamase, alteration in target PBPs, and permeability barrier preventing penetration of antibiotic to target. | | | This process occurs as an adaptive mechanism that arises in response to antibiotics. |
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http://sun.science.wayne.edu/~bio340/StudentPages/Raphael/ANTIBIOTIC_RESISTANCEm.html
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| | Stabilized preparations of .beta.-lactam antibiotic - Patent 6514962 |
| | This invention has been made to solve the above problem, with its object being to provide a stabilized preparation of a.beta.-lactam antibiotic having an esterified carboxy group directly coupled to the nucleus which is stable against heat even in an oil-including formulation. | | | Since.beta.-lactam antibiotics, particularly penicillin antibiotics, are generally allergenic, it is common practice to have them granulated, for instance, to prevent scattering but the practice is not effective enough in preventing scattering. | | | This invention is carried into practice by mixing a.beta.-lactam antibiotic having an esterified carboxy group directly coupled to the nucleus with a salt of phosphoric acid and oil. |
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http://www.freepatentsonline.com/6514962.html
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| | Antibiotic composition with inhibitor - US Patent 6565882 |
| | Antibiotic composition having four dosage forms with different release profiles providing for initial release of a beta lactam antibiotic followed by release of a beta-lactamase inhibitor, followed by release of the antibiotic followed by release of the inhibitor. | | | Numerous modifications and variations of the present invention are possible in light of the above teachings, therefore, within the scope of the appended claims, the invention may be practiced otherwise than as particularly described. | | | The composition of the aqueous Eudragit L30D-55 dispersion applied to the antibiotic matrix pellets and to the inhibitor matrix pellets is provided below in Table 2. |
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http://www.patentstorm.us/patents/6565882.html
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| | 6-(1-acyl-1-hydroxymethyl)penicillanic acid derivatives - Patent 4675186 |
| | By this mechanism they increase their own antibacterial effectiveness or the antibacterial effectiveness of a conventional beta-lactam antibiotic (penicillin or cephalosporin) against many microorganisms, particularly those which produce a beta-lactamase. | | | R is hydrogen, a radical group forming an ester hydrolyzable under physiological conditions, or an acyloxymethyl or 1-(acyloxy)ethyl radical derived from a conventional beta-lactam antibiotic; and | | | A pharmaceutical composition for treating bacterial infections which comprises, in a weight ratio of 10:1 to 1:3, a conventional beta-lactam antibiotic and a compound of claim 4 wherein R is hydrogen or a radical group forming an ester which is hydrolyzable under physiological conditions. |
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http://www.freepatentsonline.com/4675186.html
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| | Research Corporation Technologies News |
| | A two-component drug containing an AlamX inhibitor and a beta-lactam antibiotic have the potential to treat a broad spectrum of microorganisms for which no effective therapies currently exist. | | | Beta-lactams, which include penicillins and cephalosporins, have been among the most useful of all antibiotics, but overuse and misuse have endangered their effectiveness. | | | Researchers have identified more than 250 different beta-lactamases that fit into four structural classes--A, B, C and D. To overcome bacterial resistance to beta-lactams, current drugs combine a beta-lactam antibiotic and a beta-lactamase inhibitor. |
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http://www.rctech.com/news/rct-news.php?articleID=47&articleYear=2000
(294 words)
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| | PHA 421 - Infectious Disease Module |
| | However, these modifications cause a general decrease in the effectiveness of beta lactams, and almost all clinically available beta-lactamase resistant penicillins are less potent than the parent molecules. | | | The reactive nature of the beta lactam ring system makes penicillins and related compounds susceptible to a variety of degradative processes. | | | The beta lactam antibiotic thienamycin was isolated from the mold Streptomyces cattlea. |
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http://wiz2.pharm.wayne.edu/module/betalactam.html
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| | penicillin: Definition and Much More From Answers.com |
| | However, the usefulness of the beta-lactam ring was such that related antibiotics, including the mecillinams, the carbapenems and, most importantly, the cephalosporins, have it at the centre of their structures. | | | Penicillin is a β-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms. | | | The first successful treatment of a patient with penicillin occurred in New Haven, Conn., in 1942. |
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http://www.answers.com/topic/penicillin
(1893 words)
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| | Antibiotics |
| | Generation Penicillins were made to treat some Gram negative organisms that do not make beta lactamases. | | | Beta lactams are generally bactericidal against growing bacteria with active autolysins. Important clinical situations in which the beta-lactams are not bactericidal include slow growing or dormant bacteria found in endocarditis and chronic osteomyelitis, and against certain bacteria such as enterococci that downregulate autolysin activity. | | | Beta-lactams that preferentially inhibit PBP2 lead to the formation of round cells. PBP3 is responsible for septum formation. Inhibition of PBP3 forms huge filamentous cells. Although the various beta-lactam antibiotics interact with the PBPs to different degrees, it is extremely important to realize that any of the events that they mediate are lethal. |
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http://www.ratsteachmicro.com/Antibiotics/HCOE_CAI_Review_Notes_Antibiotics.htm
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| | Natalie C.J. Strynadka |
| | An analysis of the PBP2a active site reveals the structural basis of its broad-spectrum resistance to the approximately 50 clinically utilized beta-lactam antibiotics and identifies features important for high-affinity binding. | | | The key determinant of broad-spectrum betalactam resistance in methicillin-resistant superbug strains is the membrane-spanning penicillin-binding protein 2a (PBP2a), a transpeptidase that is required to produce peptide cross-links that give the bacterial cell wall its necessary strength and rigidity. | | | Antibiotic resistance has become a major clinical problem worldwide. |
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http://www.hhmi.org/research/scholars/strynadka.html
(307 words)
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| | .beta.-Lactam antibiotic, its preparation and use - United States Patent 4,421,760 |
| | Such.beta.-lactam antibiotics include ampicillin, amoxycillin, benzylpenicillin, phenoxymethylpenicillin, propicillin, cephaloridine, cefoxitin, cephalothin, cephalexin, carbenicillin, ticarcillin and in-vivo hydrolysable esters of such compounds such as the phenyl, tolyl or indanyl esters of carbenicillin or ticarcillin or the acetoxymethyl, pivaloyloxymethyl or phthalidyl esters of ampicillin, benzylpenicillin, amoxycillin, cephaloridine, and cephaloglycin. | | | We have found it beneficial to subject the salts of the compound of the formula (VI) prepared by the previous methods, to further chromatographic separation techniques. | | | The antibiotic may be eluted from such materials using solvents such as water or aqueous methanol. |
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http://xrint.com/patents/us/4421760
(6235 words)
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| | PHA 421 - Infectious Disease Module |
| | However, these modifications cause a general decrease in the effectiveness of beta lactams, and almost all clinically available beta-lactamase resistant penicillins are less potent than the parent molecules. | | | Thus the drug methacillin is a beta-lactamase resistant antibiotic. | | | Beta lactamases are not particularly tolerant to steric hinderance when it occurs at the sidechain amide, even though they act to cleave the beta lactam amide bond. |
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http://wiz2.pharm.wayne.edu/module/betalactam.html
(2373 words)
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| | Eckerd Prescription Advisor - Monograph |
| | The relationship between PBPs and autolysins is unclear, but it is possible that the beta-lactam antibiotic interferes with an autolysin inhibitor. | | | Cephalexin is used primarily in the treatment of otitis media and infections of the respiratory tract (e.g., pharyngitis, tonsillitis, lobar pneumonia) caused by susceptible staphylococci, Streptococcus pneumoniae, and group A beta-hemolytic streptococci. | | | Thus, the intrinisic activity of cephalexin as well as the other cephalosporins and penicillins against a particular organism depends on its ability to gain access to and bind with the necessary PBP. |
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http://www.eckerd.com/RxAdvisor/showmono.asp?monotype=&cpnum=109&match=F
(538 words)
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| | MethylGene :: Montreal, Quebec November 12, 2002 |
| | Antibiotic resistance is a major health concern, particularly in the hospital setting where in the US, over 2 million cases resulting in 20 000 deaths are reported annually. The current market for antibiotics is estimated at $23 billion annually with beta-lactam antibiotics representing over 40% of the sales. | | | MethylGene Inc. is a privately held Canadian biopharmaceutical company focused on the discovery and development of novel and proprietary medicines for the treatment of cancer and infectious diseases. | | | The Company has built strong core competencies in pharmaceutical research, particularly functional genomics, rational drug design, and medicinal chemistry. MG98, the lead anti-cancer compound is currently in human clinical trials. |
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http://www.methylgene.com/content.asp?node=143
(195 words)
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| | Antimicrobial Pharmacology Exam |
| | MIC determinations are more reliable at demonstrating than at demonstrating susceptibility of a bug to a drug | | | Transformation is characterized by enzymatic conjugation of groups such as acetate and glucuronic acid to the drug | | | What is the property by which sulfonamides interact with many other drugs, and which principally governs their rate of elimination? |
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http://mail.med.upenn.edu/~pennmsg/Exams/modules/2/Antimicrobials_2001_final.html
(1367 words)
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| | Datamonitor - MethylGene and Merck-Frosst Canada enter worldwide licensing agreement - News |
| | MethylGene has designed and developed small molecules that inhibit the beta-lactamase enzymes, which are a major cause of resistance to these widely utilized antibiotics and these small molecules may be combined with any beta-lactam antibiotic. | | | In addition, MethylGene's compounds appear to inhibit a broader spectrum of beta-lactamase enzymes compared to currently available therapies. | | | Beta-lactamases are bacterial enzymes that destroy beta-lactam-containing antibiotics, such as the penicillins, cephalosporins, carbapenems, and monobactams. |
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http://www.datamonitor.com/all/news/product.asp?pid=98F8A24F-2AFC-4986-85EA-DBB28285128C
(412 words)
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| | Mathee Betalactum resistance |
| | Topology analysis of Pseudomonas aeruginosa AmpG, a putative permease involved in beta-lactam antibiotic resistance. | | | The objective of this research is to use genetic and molecular biological techniques and biofilm chambers to investigate the regulation of Sigma-lactamase genes in P. | | | This knowledge will help us in the design of proper prophylactic and therapeutic treatments for P. |
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http://www.fiu.edu/~matheek/betalactam.htm
(388 words)
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| | Antibiotic |
| | The Medicine Outlet - Discount Online Pharmacy - Save money on a large selection of prescription medication. | | | Infected Wisdom Tooth - Infected Third Molar - Infection ToothAn infected wisdom tooth is nothing to fool around with and should always unusual to see patients whose infections don't respond to antibiotic therapy. | | | Buy Amoxyl generic Amoxycillin for huge savings from a licensed pharmacy, free prescription. |
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http://carisoprodol1.hotbox.ru/Antibiotic.html
(744 words)
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