Although manipulation of second messenger systems is widespread in cell biology, there are few experiments examining the consequences of such manipulation on behavior. In three separate experiments, we extended earlier work by Miller and Kelly (1975) that examined the behavioral effects of microinfusion of cholera toxin (CTX) into the nucleus accumbens (N. Acc.) in rats. CTX is a bacterial toxi...

To analyze the inhibitory effect of hormone replacement therapy (HRT) on bone resorption, we measured urinary excretion of C-telopeptide (CTX) and N-telopeptide (NTX) of type I collagen as new markers of bone resorption and assessed their correlation with bone mineral density, in comparison with urinary pyridinoline (Pyr), deoxypyridinoline (D-Pyr) and hydoxyproline (Hpr). CTX and NTX, in addit...

Cyclophosphamide (CTX) increases the antitumor effectiveness of adoptive immunotherapy in mice, and combined immunotherapy regimens are now used in some clinical trials. However, the mechanisms underlying the synergistic antitumor responses are still unclear. The purpose of this study was ( a ) to evaluate the antitumor response to CTX and adoptive immunotherapy in mice bearing four different s...

In view of previous studies demonstrating a significant correlation between adenosine triphosphate (ATP) depletion and impairment of chemotaxis (CTX) during granulocyte (PMN) storage, we sought to quantitate the relationship between CTX and PMN energy metabolism. We incubated PMNs at 37 degrees C with 2-deoxyglucose (2-dg) in the presence of 5 mmol/L glucose. As expected, ATP inhibition by 2-dg...

BACKGROUND The association of PMQR and ESBLs in negative-bacteria isolates has been of great concern. The present study was performed to investigate the prevalence of co-transferability of oqxAB and bla CTX-M genes among the 696 Escherichia coli (E. coli) isolates from food-producing animals in South China, and to characterize these plasmids. METHODS The ESBL-encoding genes (bla(CTX-M), bla(T...

BACKGROUND In a retrospective study we analyzed the impact of neoadjuvant chemotherapy (CTx) with the PELF - protocol (Cisplatin, Epirubicin, Leukovorin, 5-Fluoruracil) on mortality, recurrence and prognosis of patients with advanced gastric carcinoma, UICC stages Ib-III. METHODS 64 patients were included. 26 patients received neoadjuvant CTx followed by surgical resection, 38 received surgic...

Background HNC is immunosuppressive, with low absolute lymphocyte counts, impaired activity of effectors such as natural killer cells (NK), and poor antigen-presenting function. The anti-EGFR monoclonal antibody cetuximab (CTX) prolongs survival in HNC, but only in a subset of patients. The clinical activity of CTX has been mechanistically linked to NK-mediated antibody-dependent cellular cytot...

Preconditioning a recipient host with lymphodepletion can markedly augment adoptive T cell therapy. However, the precise mechanisms involved are poorly understood. In a recent study, we observed a significant increase in the circulating levels of dendritic cells (DCs; CD11c(+)CD11b(+)) during the recovery from cyclophosphamide (CTX)-induced lymphodepletion. Herein, we demonstrate that the CTX-i...

INTRODUCTION The urinary level of the type II collagen degradation marker CTX-II is increased in postmenopausal women and in ovariectomised rats, suggesting that oestrogen deprivation induces cartilage breakdown. Here we investigate whether this response to oestrogen is also true for other type II collagen turnover markers known to be affected in osteoarthritis, and whether it relates to its pr...

OBJECTIVES Determining the prevalence of children in day-care centres (DCCs) carrying faecal extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae and molecularly characterizing those belonging to the Escherichia coli species. METHODS Stools were collected from children's diapers (January-April 2012) in randomly chosen DCCs and plated onto ChromID ESBL. Colonies growing on this me...