Cancer is a multifactorial disease characterized by complex molecular landscape and altered cell pathways that results in an abnormal cell growth. Natural compounds are target-specific and pose a limited cytotoxicity; therefore, can aid in the development of new therapeutic interventions for the treatment of this versatile disease. Berberine is a member of the protoberberine alkaloids family, mainly present in the root, stem, and bark of various trees, and has a reputed anticancer activity. Nonetheless, the limited bioavailability and low absorption rate are the two major hindrances following berberine administration as only 0.5% of ingested berberine absorbed in small intestine while this percentage is further decreased to 0.35%, when enter in systemic circulation. Nano-based formulation is believed to be an ideal candidate to increase absorption percentage as at nano scale level, compounds can absorb rapidly in gut. Nanotechnology-based therapeutic approaches have been implemented to overcome such problems, ultimately promoting a higher efficacy in the treatment of a plethora of diseases. This review present and critically discusses the anti-proliferative role of berberine and the nanotechnology-based therapeutic strategies used for the nano-scale delivery of berberine. Finally, the current approaches and promising perspectives of latest delivery of this alkaloid are also critically analyzed and discussed.
Aims: The present study was conducted to investigate the mechanism of carbapenem resistance and the molecular epidemiology of carbapenem-resistant Acinetobacter baumannii (CRAB) isolates collected from two nearby hospitals in Tehran, Iran. Methods and Results: A total of 180 CRAB isolates were studied. Antimicrobial susceptibility testing was performed using disk diffusion and Epsilometer tests. The detection of OXA-23, -24 and -58 was implemented for all isolates using polymerase chain reaction. Subsequently, isolates harbouring OXA-24 and -58 were investigated for the presence of resistance determinants of Ambler class A, metallo-b-lactamases (MBLs), and carbapenem-hydrolysing class D b-lactamases, ISAba1, and the genetic relatedness between them was analysed using pulsed-field gel electrophoresis (PFGE). All isolates were found to be resistant to imipenem with a MIC of ≥8 µg ml À1 and were susceptible to colistin with a MIC of ≤1Á5 µg ml À1 . Sixty percent of the isolates had OXA-23. OXA-24 and -58 were detected in 31 of 180 CRAB isolates. These chosen isolates were devoid of MBLs and bla SHV , bla CTX-M , bla VEB ESBL genes. The PER determinant was detected in 38% of isolates as the most common extended spectrum b-lactamases (ESBLs). Of these isolates, 51Á6% had OXA-23, and ISAba1 was found to be upstream of OXA-23 and OXA-51 in 16 and 8 isolates, respectively. The band patterns produced by PFGE showed nine clonal pulsotypes distributed between the two hospitals. Conclusion: The findings showed that the refractory CRAB isolates were transmitted intra-and inter-hospital, particularly in the ICU due to shortcomings in infection control surveillance. Significance and Impact of the Study: Carbapenem resistance is a substantial threat in the treatment of infections caused by A. baumannii due to limitations in the therapeutic options.
The core objective was to evaluate the effect of probiotic fortification at three phases of formula milk administration in malnourished children. A dose related effect was determined in 30 severely acute malnourished children (6-59 months) in a double-blind, randomized design. According to the results, serum albumin levels, treatment T 2 (6 billion cfu) has significantly increased albumin levels (3.7g/dL) and the effect of phase-III (Plumpy'nut) was found to be better.Results regarding sodium levels showing probiotic-dose have significant effect (P≤0.05) in phases as well. Moreover, the effect of T 1 i.e. 3 billion cfu of probiotics has significantly reduced sodium levels (141.8mmol/L) vs. others and the effect of phase-II was better on reducing sodium levels. which is further confirmed in terms of reduced erythrocyte sedimentation rate levels at phase-III (29.566 vs. phase-II, 41.3 and phase-I, 46.533 mm/h). Conclusively, the effect of 6 billion cfu at phase-III was more effective on blood parameters.
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