Biosensors are sensitive and can be used as disposable sensors for environmental control. These biosensors are based either on inhibition of acyl cholinesterases acetylcholinesterase or butyrylcholinesterase) by organophosphorus compounds or on inhibition of enzymes phosphatases (acid or alkaline) or on direct detection of organophosphorus compounds by organophosphorus hydrolase. The state-of-t...

Clinics Splenomegaly; chronic phase (lasts about 3 yrs) with maintained cell’s normal activities, followed by accelerated phase(s)(blasts still < 15%), and blast crisis (BC-CML) with blast cells > 30%; blood data: WBC: 100 X 10/l and more during chronic phase, with basophilia; a few blasts; thrombocytosis may be present; low leucocyte alkaline phosphatases; typical acute leukaemia (AL) blood da...

The study was conducted on ten healthy buffalo calves. The labial glands were distributed mainly at the commissure of lips and some isolated lobes in upper and lower lips. The gland was not encapsulated and parenchyma was comprised of secretory units and duct system. The adenomeres (secretory units) were mainly mucous with some serous and mixed type. Few serous demilunes capping the mucous alve...

It has been reported previously that polymeric phosphates of phloretin and related compounds are potent inhibitors of several enzymes including alkaline phosphatase and hyaluronidase (Diczfalusy et al. 1953). Preliminary studies suggested that a similar inhibition of acid phosphatases may also take place (Diczfalusy et al. 1953). This paper reports on the kinetics of human seminal acid phosphat...

Topicality. Pancreatic hormones play an important role in the process of remodeling hard periodontal tissues. Violations carbohydrate metabolism that occur under conditions isolated insulin resistance (IR) and combination with iodine deficiency (ID) can be cause dysmetabolic disorders mineralization/demineralization physiological system tooth-maxillary complex.&#x0D; The aim. To study changes p...

Anuran amphibians have the potential to restore their lost tail by regeneration, although, unlike urodeles their regeneration capacity is restricted to larval stages. Application of vitamin A or retinoids to tail amputated tadpoles causes abnormal tail regeneration and subsequently leads to development of ectopic organs (limbs and pelvic girdles) at the site of the tail, a phenomenon widely kno...

In the green alga Chlamydomonas reinhardi, removal of inorganic phosphate from the culture medium results in the increase of phosphatase activity (derepression) in the wild-type (WT) strain as well as in a double mutant (P2Pa)) lacking the two main constitutive acid phosphatases. Following treatment of WT and P2Pa with N-methyl-N-nitro-N-nitrosoguanidine (MNNG), mutants were recovered which dis...