contact hypersensitivity (chs) mouse model induced by 2, 4-dinitrofluorobenzene (dnfb) is thought to be a t helper 1 (th1)-dominant response and used for investigating anti-inflammatory and immunosuppressive agents. however, it is hardly used for screening large-scale drugs because of the large number of animals and complex mechanisms involved in-vivo. in this study, we focused on whether t lym...

One of the major goals in cancer research and diagnosis is to identify in a tissue the population of actively dividing cells and their pattern of growth and to differentiate the proliferation patterns of normal and transformed tissues. We now describe a method for determining the proliferation pattern of any tissue (normal, diseased, or transformed), applicable in any mammalian species. This me...

CDO is a cell-surface protein of the immunoglobulin/fibronectin type III repeat family that positively regulates myogenic differentiation in vitro. To gain a better understanding of the role of cdo during vertebrate development, we carried out an extensive in situ hybridization study to characterize its expression pattern from postimplantation to late stages of mouse embryogenesis and in rat br...

The rational design of a novel class trivalent thrombin inhibitors is described through the hybridization natural sulfopeptides produced by blood feeding organisms. hybrid were rapidly assembled using peptide ligation chemistry and shown to exhibit femtomolar inhibition constants against thrombin. A lead inhibitor also showed potent generation platelet aggregation in vitro, as well antithrombot...

background: it has been claimed that by using different washing methods, the sperms can be separated according to size, motility, density, chromosomal content and surface markings and charge. these methods also reduce sperm chromatin deficiencies and screen the sperms before applying in assisted reproduction techniques. objective: this study compared simple density gradient methods and a combin...

perrault's syndrome (p.s.) is rare. the combination of gonadal dysgenesis and hearing loss was accompanied by 46,xxkaryotype in three sisters with parental consanguineous marriage. genetic investigation revealed normal female karyotype, positive liarr and negative fluorescence ipj-bodies, which was confirmed by molecular study on the basis of fluorescence in situ hybridization (pish), with appl...

background: acute promyelocytic leukemia (apl) is a subclass of acute myeloid leukemia. the chromosomal aberration in 95% of apl cases is t(15; 17) (q22; q21), which prevents cell differentiation. characterization of the underlying molecular lesion is valuable in determining optimal treatment strategy. the goal of this study was to develop a new and powerful flow- fish technique to detect the l...

objective: the present study is aimed to investigate in vitro thrombolytic activity of three bangladeshi medicinal plants averrhoa bilimbi (oxalidiaceae), clerodendrum viscosum (verbanaceae) and drynaria quercifolia (polypodiaceae). materials and methods: each the plant was extracted with methanol at room temperature and the concentrated methanolic extracts (mef) were fractionated by the modifi...

background: pentavalent antimonials are still the first choice treatment for leishmaniasis, but with low efficacy and resistance is emerging. in the present study, the effect of meglumine antimoniate (ma, glucantime) combined with paromomy-cin, miltefosine or allopurinol on in vitro susceptibility of leishmania tropica resistant isolate was evaluated. method : the drugs were obtained from comme...