Chemoprevention of DMH-Induced Early Colon Carcinogenesis in Male BALB/c Mice by Administration of DTA81.

We evaluated the effects of the probiotic candidate DTA81 (DTA81) on liver oxidative stress, colonic cytokine profile, and gut microbiota in mice with induced early colon carcinogenesis (CRC) by 1,2-dimethylhydrazine (DMH). Animals were divided into four different groups ( = 6) and received the following treatments via orogastric gavage for 8 weeks: Group skim milk (GSM): 300 mg/freeze-dried skim milk/day; Group DTA81 (DTA81): 3 × 10 colony-forming units (CFU)/day; Group GG (LGG): 3 × 10 CFU/day; Group non-intervention (GNI): 0.1 mL/water/day.

Ammonium removal from high-salinity oilfield-produced water: assessing the microbial community dynamics at increasing salt concentrations.

Water generated during oil exploration is chemically complex and contains high concentrations of ammonium and, in some cases, high salinity. The most common way to remove ammonium from effluent is a biological process, which can be performed by different routes and different groups of microorganisms. However, the presence of salts in the effluents could be an inhibiting factor for biological processes, interfering directly with treatment.