Effect of organic acids and probiotics on intestinal health of Apis mellifera.

Apis mellifera is an important pollinator that has a prominent impact on crops' ecological balance. Beekeeping provides us with more valuable products like honey, pollen, propolis, beeswax, and royal jelly. The ongoing era demands more scientific and environment-friendly strategies to improve the beekeeping sector internationally. Nowadays, the use of synbiotics (a combination of probiotics and prebiotics) has been declared as the need of the hour. However, little bit studies have been carried out in this regard. To improve the beekeeping sector in Pakistan, a study was designed to exploration of probiotic and organic acids on bee tissue ileum (small intestine). 108 Colony forming units (C.F.Us) of Bacillus clausii and Lactobacillus brevis were provided with and without mixing in 1.96% acetic acid, 2.91% acetic acid, and 2.99% lactic acid to caged worker bees under controlled laboratory conditions. The provision did not affect the intestine harmfully. The mean intestinal lumen diameters (µm2) were 133.33 ± 8.82, 63.33 ± 3.33, 186.67 ± 72.19, 250.00 ± 28.87, 166.67 ± 17.64, 193.33 ± 46.31, and 140.00 ± 61.10 in experiments (1, 2, 3, 5, and 6 respectively) compared to control's 113.33 ± 38.44. Worker bees with better digestion conditions prove honeybee's health and efficiency.

Profundidad de la línea de demarcación del estroma corneal después de la reticulación del colágeno corneal usando epitelial corneal personalizado versus convencional desbridamiento / Corneal stromal demarcation line depth after corneal collagen cross-linking using customized versus conventional corneal epithelial debridement

Aim of the Study: Compare the corneal demarcation line (DL) depth after corneal collagen cross-linking (CXL) with subtotal versus customized corneal epithelium debridement using anterior segment optical coherence tomography (AS-OCT). Design: Prospective case-control study. Materials and Methods: The study enrolled 18 patients with bilateral progressive keratoconus. Both eyes treated by CXL using 3 mW/cm2 / 30 minutes setting. One eye with subtotal epithelial debridement (about 9 mm diameter) and the contralateral eye with customized debridement (approximately 1 mm single horizontal central scratch). One month postoperatively, patients had AS-OCT imaging to detect and measure the depth ofDL. Results: Patients' age mean was 25.17 years +/- 4.81 SD. Epithelial healing completed with in 3-7 days in conventional treatment group and demarcation line was evident in 16 eyes (89%) with a mean depth of 290.31 µm while in customized debridement group, the epithelial healing lasted less than 24 hours and DL was detectable in 10 patients (55.5 %) with a mean DL depth of 221 µm with a statistically significant difference (p < 0.05). Subjective postoperative pain graded as "moderate to severe" in about 77% of eyes underwent 9 mm epi-off CXL compared with 55% of those with customized debridement group. Conclusions: Although the DL if found in majority cases, but the shallow location in customized corneal debridement cases questioned the efficacy of this technique despite the quick re-epithelialization and less postoperative pain that accompanied it