Karyotypes of four catfishes the genus Mystus Scopoli, 1777 (family Bagridae), M. atrifasciatus Fowler, 1937, mysticetus Roberts, 1992, singaringan (Bleeker, 1846) and wolffii 1851), were analysed by conventional Ag-NOR banding as well fluorescence in situ hybridization (FISH) techniques. Microsatellite d(GC) 15 , d(CAA) 10 d(CAT) d(GAA) repeat probes applied FISH. The obtained data revealed th...

The purpose of this study was to determine the effect of a 15-week omega-3 rich diet on age-related differences in myocardial antioxidant defense and inflammation. 20 mature (M) (6 mo.) and 20 old (O) (15 mo.) male Fisher 344 rats were assigned to two diet groups: Control (CON) or Fish Oil (FO). Following the diet, animals were sacrificed and left ventricular (LV) heart tissue was harvested for...

in recent times increasing occurrence of dermatophytosis, especially among the school children in eastern india was evidenced along with increased tendency of keeping companion animals such as dogs and cats. this study was undertaken to detect the occurrence of dermatophytes with antifungal susceptibility among the companion animals. a total of 1501 healthy companion animals comprising 1209 dog...

To increase the number of cytogenetic characters used in Ololygon tripui systematics, we applied some cytogenetic techniques such as Giemsa, C- and NOR-banding, and fluorescence in situ hybridization (FISH) with 18S rDNA and repetitive microsatellite DNA probes to the study of four populations from Minas Gerais State (southeastern Brazil). All populations showed 2n = 24 and FN = 48, and chromos...

Juvenile turbot were exposed in laboratory conditions to a mixture of chemical contaminants associated with harbour and estuarine sediments for seven and 21 days. Several molecular biomarkers of exposure were then measured in fish liver: two biotransformation parameters [ethoxyresorufin-O-deethylase (EROD) and phase II glutathione S-transferase (GST) activities] and an antioxidant enzyme activi...

In October 2007, a light crude oil spill took place in the off shore Kab121 oil well, 32 km north of the mouth of the Grijalva River, Tabasco, Mexico. In order to estimate the possible effects of oil spill on the biota in the area surrounding the spilled well, the level of different fractions of petroleum hydrocarbons were measured in fish, as well as the concentration of some chlorinated hydro...

Oceans function as a sink for organochlorine compounds (OCs) such as PCBs and DDTs. Deep-sea fish bioaccumulate OCs to levels 10 to 100 times higher than shallow-water species. OCs induce the cytochrome P450 (CYP) system, the activity of which may increase reactive oxygen species (ROS) production in liver cells. However, the susceptibility of fish to the oxidative stress likely caused by OCs re...