Digital imaging fluorescence microscopy was used to investigate the effect of the B subunit of cholera toxin on calcium homeostasis in neuroblastoma N18 cells. The B subunit, which binds specifically to ganglioside GM1 in the outer leaflet of the cell membrane, was found to induce a sustained increase of intracellular calcium concentration ([Ca2+]i). The increase in [Ca2+]i was not observed in ...

Glutamate is thought to be a major excitatory neurotransmitter in the central nervous system. To study the glutamate receptor and its regulation under carefully controlled conditions, the specific binding of [3H]glutamate was characterized in washed membranes isolated from a neuroblastoma X retina hybrid cell line, N18-RE-105. [3H]Glutamate bound in a saturable and reversible fashion with an ap...

Introduction: Helicobacter pylori infection has various clinical features. One of the most common presentations of this infection is upper abdominal pain. Complications such as gastritis, gastric ulcer, gastric carcinoma and MALT lymphoma mandate early diagnosis of H.P infection by a low cost and non invasive manner. The aim of this study was to evaluate the diagnostic role of H.P stool antige...

Infection by Japanese encephalitis virus (JEV), a mosquito-borne flavivirus, causes acute encephalitis in humans and induces severe cytopathic effects in different types of cultured cells. This study attempted to determine whether apoptosis contributes to virus-induced cell death in a culture system by characterizing JEV lytic infection in baby hamster kidney BHK-21 cells, murine neuroblastoma ...

The aim of this article is to compare the incidence of thanatophobia in dialysed patients having Balkan endemic nephropathy (BEN) with a control group (N18) members where some of them have chronic renal failure (CRF), but not (BEN). We examined thanatophobia on a sample of 753 dialysed patients with chronic renal failure (CRF) in Bosnia and Herzegovina (B&H) during the period from 1st January 2...

Let θ(n) denote the number of compositions (ordered partitions) of a positive integer n into powers of 2. It appears that the function θ(n) satisfies many congruences modulo 2 . For example, for every integer a there exists (as k tends to infinity) the limit of θ(2 + a) in the 2−adic topology. The parity of θ(n) obeys a simple rule. In this paper we extend this result to higher powers of 2. In ...

We present a method to obtain congruences modulo powers of 2 for sequences given by recurrences of finite depth with polynomial coefficients. We apply this method to Catalan numbers, Fuß–Catalan numbers, and to subgroup counting functions associated with Hecke groups and their lifts. This leads to numerous new results, including many extensions of known results to higher powers of 2. ∗Research ...