11 research outputs found
Biotransformation of Cranberry Proanthocyanidins to Probiotic Metabolites by Lactobacillus rhamnosus
Anti-Inflammatory Activity of Haskap Cultivars is Polyphenols-Dependent
Haskap (Lonicera caerulea L.) berries have long been used for their health promoting properties against chronic conditions. The current study investigated the effect of Canadian haskap berry extracts on pro-inflammatory cytokines using a human monocytic cell line THP-1 derived macrophages stimulated by lipopolysaccharide. Methanol extracts of haskap from different growing locations in Canada were prepared and characterized for their total phenolic profile using colorimetric assays and liquid chromatography—Mass spectrometry (UPLC-MS/MS). Human THP-1 monocytes were seeded in 24-well plates (5 × 105/well) and treated with phorbol 12-myristate 13-acetate (PMA, 0.1 μg/mL) for 48 h to induce macrophage differentiation. After 48 h, the differentiated macrophages were washed with Hank’s buffer and treated with various concentrations of test compounds for 4 h, followed by the lipopolysaccharide (LPS)-stimulation (18 h). Borealis cultivar showed the highest phenolic content, flavonoid content and anthocyanin content (p < 0.05). A negative correlation existed between the polyphenol concentration of the extracts and pro-inflammatory cytokines: Interleukin-6 (IL-6), tumour necrosis factor-alpha (TNF-α), prostaglandin (PGE2), and cyclooxygenase-2 (COX-2) enzyme. Borealis exhibited comparable anti-inflammatory effects to COX inhibitory drug, diclofenac. The results showed that haskap berry polyphenols has the potential to act as an effective inflammation inhibitor
Effect of roscovitine on developmental competence of small follicle-derived buffalo oocytes
Background & objectives: The lower recovery of competent oocytes in buffalo species limits the commercialization of in vitro embryo production technology in field condition. In this context, pre-maturation of small follicle (SF)-derived oocytes with meiotic inhibition may be a promising alternative to obtain more number of competent oocytes. Thus, the present study was conducted with an objective to enhance the developmental potential of less competent SF-derived buffalo oocytes.
Methods: All the visible follicles (used for aspiration) from buffalo ovaries were divided into two categories: large follicle (LF) (follicles having diameter ≥6 mm) and SF (follicles of diameter <6 mm). The competence of LF and SF oocytes was observed in terms of brilliant cresyl blue (BCB) staining, cleavage rate, blastocyst rate and relative gene expression of oocyte and blastocyst competence markers. Thereafter, less competent SF oocytes were treated with 0, 12.5, 25, 50 and 100 mM doses of roscovitine (cyclin-dependent kinase inhibitor) to enhance their developmental potential.
Results: Based on parameters studied, LF oocytes were found to be more competent than SF oocytes. Pre-maturation incubation of SF oocytes with roscovitine reversibly arrested oocyte maturation for 24 h to ensure the proper maturation of less competent oocytes. A significantly higher number of BCB-positive oocytes were noted in roscovitine-treated group than SF group. Cleavage and blastocyst rates were also higher in roscovitine-treated group. The relative messenger RNA expression of oocyte (GDF9, BMP15, GREM1, EGFR, PTGS2 and HAS2) as well as blastocyst (INF-Ï„, GLUT1 and POU5F1) competence markers was significantly greater in roscovitine-treated group relative to SF group. Again, on comparison with LF group, these parameters depicted a lower value in the treatment group.
Interpretation & conclusions: The findings of this study has revealed that pre-maturation incubation of SF-derived oocytes with 25 μM roscovitine can improve its developmental competence and thus can be utilized to get maximum number of competent oocytes for better commercialization of in vitro embryo production technology in buffalo
Not Available
Not AvailableEnvironmental crises, declining factor productivity, and shrinking natural resource is a threat to global
agricultural sustainability. The task is much more daunting in the Indo-Gangetic northern plains of
India, where depletion of the underground water table and erratic rains due to the changing climate
pose a major challenge to agriculture. To address these challenges a field investigation was carried
out during 2016–2018 to test the efficacy of biopolymeric superabsorbent hydrogels namely Pusa
Hydrogel (P-hydrogel: a semi-synthetic cellulose derivative-based product) and kaolin derivative of
Pusa Hydrogel (K-hydrogel: semi-synthetic cellulose derivative) to assess their effect on crop and
water productivity, soil moisture, root dynamics, and economics of soybean (Glycine max L.)–wheat
(Triticum aestivum L.) system under three irrigation regimes namely full irrigation, limited irrigation
and rainfed. The results revealed that the full irrigation along with P-hydrogel led to enhanced grain
yield, biomass yield, and water productivity (WP) of soybean (1.61–10.5%, 2.2–9.5%, and 2.15–
21.8%, respectively) and wheat (11.1–18.3%, 12–54% and 11.1–13.1%, respectively) over control
plots. Likewise, under water stressed plots of rainfed conditions with P-hydrogel exhibited 52.7 and
20.6% higher system yields (in terms of wheat equivalent yield) over control and other combinations
during the respective study years. Whereas the magnitude of increase in system yield under limited
irrigation with P-hydrogel was ~ 15.1% and under full irrigation with P-hydrogel was 8.0–19.4%. Plots
treated with P-hydrogel retained 3.0–5.0% higher soil moisture compared to no-hydrogel plots, while
K-hydrogel treated plots held the lower moisture (4.0–6.0%) than the control. In terms of profitability,
full irrigation along with P-hydrogel plots registered 12.97% higher economic returns over control.
The results suggested that P-hydrogel (2.5 kg ha−
1) reduces runoff water loss in full irrigation applied
plots and retained more water, where loss of water is more thus reduces number of irrigations. Hence
P-hydrogel with irrigation water is a viable option for sustainable production of soybean-wheat
systems in the Indo-Gangetic plains of India and other similar eco-regions of the world.Not Availabl