Naltrexone is more effective than placebo in the treatment of pruritus in patient with eczema. Naltrexone might be considered as an adjunct treatment in the treatment of pruritus. However, further studies in this aspect are highly fostered.

We show that a combination of various types of nanorobots will prove to be more important as we attend to enhance targeting in the smallest blood vessels found in the human microvasculature. As such, various interdependent concepts for the implementation of these different types of medical bio-nanorobots including nanorobots propelled in the microvasculature by flagellated bacteria to target deep regions in the human body are presented. Through experimental results and theoretical formulations, we also showed the advantages of integrating biological components and more specifically Magnetotactic Bacteria (MTB) for the development of hybrid (made of synthetic and biological components) nanorobots adapted to operate in the human microvasculature. We also show a method capable to track using MRI as imaging modality, steerable microbeads and MTB that could be integrated in the implementation of future sophisticated bionanorobots operating inside the complex vascular network. As such, we show that these nanorobots including the ones propelled by a single flagellated bacterium could be guided or controlled directly towards specific locations deep inside the human body. We also show experimentally that flagellated bacterial nanorobots could be propelled and steered in vivo through the interstitial region of a tumor for enhanced therapeutic results.

Mean shift algorithms are among the most functional tracking methods which are accurate and have almost simple computation. Different versions of this algorithm are developed which are differ in template updating and their window sizes. To measure the reliability and accuracy of these methods one should normally rely on visual results or number of iteration. In this paper we introduce two new parameters which can be used to compare the algorithms especially when their results are close to each other.

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