We investigated the effect of Aztreonam on hydrolysis of β-lactam antibiotics by MBL using New Delhi Metallo-β-lactamase-1(NDM-1) as a model. The results showed that Aztreonam significantly inhibited hydrolysis of Nitrocefin and Meropenem by soluble NDM-1, but also inhibited hydrolysis of Penicillin G by CPG beads immobilized NDM-1(NDM-1 beads). Moreover, in spite of extensive washing for multiple

Polisen bör lära av USA och centralisera sin kamp emot gängkriminaliteten. Ett nationellt centrum med denna huvuduppgift kan vara en början till slutet för gängen, skriver Ardavan Khoshnood som är docent i akutsjukvård vid Lunds universitet samt kriminolog och statsvetare.The police should learn from the United States and centralize their fight against gang criminality. A national center with this main task can be a beginning to the end for the gangs, writes Ardavan Khoshnood who is an associate professor of Emergency Medicine at Lund University and a criminologist and political scientist.

The penicillinase thermistor biosensor（Penicillinase sensor） was developed for the rapid monitoring of blood penem antibiotics concentration and rapid identification of extraneous penicillinase in milk on site.However, the wide application of the penicillinase thermistor biosensor was limited due to its intrinsic poor activity to hydrolyze cephem and carbapenem antibiotics.The recently identified

Objective To compare the enzyme thermistor bioanalysis equipment with blood glucose meter which is analyzed by automatic biochemical analyzer, validate the correct rate of this equipment. The long-term aim of the project was to develop a prototype for a bedside monitor system for semi-continuous monitoring of the blood glucose concentration. This was made possible by using the special advantage of

Methyl parathion hydrolase （ MPH ） as and bovine serum albumin （BSA） as hybrid proteins, the target protein, bovine hemoglobin （BHb）, myoglobin （Mb） enzyme thermal analysis was used to determine the best separation condition of methyl parathion hydrolase through the study of pH and the NaC1 concentration in mobile phase. The results showed that at pH 8.0, NaC1 concentration of 0.8 mol/L, the separ

This chapter describes principles and features of thermal biosensors and microbiosensors and includes a discussion of different thermal transducers. A number of instrumental concepts are described in detail from larger flow injection instruments to miniaturized devices and chip designs with thermal arrays. A thermal–electrochemical hybrid sensor is also presented. The chapter contains many descrip

A biotin-avidin modified biochip has been constructed, and its electrochemistry characteristics were studied with K4Fe(CN)(6).3H2O and ferrocene as the indicators by cyclic voltammograms. Electrochemical experiments showed that this biochip has high response signal, reproducibility,uniformity and low background signal; the ferrocene can be used as high efficiency electron medium. And these results

This paper describes a new protein chip method for detection of single-base mismatches and unpaired bases of DNA, using a genetic fusion molecular system Trx-His6-Linker peptide-Strep-tagII-Linker peptide-MutS (THLSLM). The THLSLM coding sequence was constructed by attaching Strep-tag II and mutS gene to pET32a (+) sequentially with insertion of a linker peptide coding sequence before and behind S

Protein HC (alias alpha 1-microglobulin) contains so far unidentified yellow-brown fluorescent chromophores. Several preparations of human protein HC were extracted with hexane. Most of the extracts contained a substance which, upon reversed-phase HPLC, co-eluted with all-trans- retinol and had an absorption spectrum identical to that of retinol. The substance was also, like retinol, destroyed by

As pointed out in the preceding review (Nachemson and Rydevik 1988), the most serious and common complications of chymopapain treatment of patients with sciatica due to disc herniation are cerebral or subarachnoid hemorrhages and allergic manifestations. Recent progress in biochemical and physiologic studies of cysteine proteinases and their inhibitors allows some speculation on how these complica

Tumor necrosis factor (TNF) possesses both beneficial and toxic bioactivities. Mechanisms may operate to counteract harmful effects. We have identified a TNF binding protein (TNF-BP), which shows increased levels in serum and urine of patients on regular hemodialysis treatment (RDT). TNF-BP inhibited the specific binding of human recombinant TNF (rTNF) to its cell surface receptor. Results from ge

The mechanism(s) behind the larger relative increase of Plasma beta 2 microglobulin (P-beta 2m) than that of Plasma albumin (P-alb) during Cuprophan hemodialysis is disputed. To elucidate this phenomenon P-alb, P-beta 2m (MW 11,800) and Plasma cystatin (P-cC; MW 13,000) an inhibitor of cystein proteinases, were determined before and after a Cuprophan or polysulphone hemodialysis (4-7 hr, QB 200 ml

Polyclonal protein HC-IgA complexes (HC-IgA) were isolated from two different serum pools. Their hydrodynamic volumes were found to be slightly greater than that of monomeric IgA but less than that of dimeric IgA. Sodium dodecyl sulphate (SDS)-polyacrylamide gel electrophoresis of reduced and carboxymethylated complexes followed by immunoblotting showed that the complexes contained normal light an

We studied the influence of plasmapheresis on the plasma concentrations of proteins (IgG, IgA, beta 2-microglobulin) used for estimation of tumour cell mass in patients with multiple myeloma. Simultaneously, the effects of plasmapheresis on plasma concentrations of proteins (CRP, alpha 1-antitrypsin, haptoglobin) used for the assessment of inflammatory processes were studied. Also, changes in the

Tumor necrosis factor (TNF)/cachectin can produce both beneficial and harmful manifestations. Mechanisms may operate to counteract potentially harmful effects such as shock and cachexia. The TNF binding protein (TNF-BP), which is found at increased levels in serum and urine of patients with chronic renal failure, may play such a role. TNF-BP was purified 1,000,000-fold to homogeneity from urine of

For cells to function correctly within an organism, they need different systems to communicate with each other. One crucial part of cell signaling is the proteoglycans (PGs) and glycosaminoglycans (GAGs), which are macromolecules that bind different signaling molecules and proteins necessary for processes such as growth and proliferation. Therefore, PGs and GAGs are involved in pathological proces