Selective and sensitive determination of tetracyclines by HPLC with chemiluminescence detection based on a cerium(IV)-methoxylated cypridina luciferin analogue system.

A novel approach for the simultaneous and selective analysis of chlortetracycline, doxycycline, 4-epichlortetracycline, oxytetracycline, metacycline, and tetracycline by high-performance liquid chromatography coupled with sensitive post-column chemiluminescence reaction was set up. Six tetracyclines were separated through a simple and effective isocratic procedure using a mixture of acetonitrile and 3.5 mM methanesulfonic acid.

Resveratrol attenuates neurological deficit and neuroinflammation following intracerebral hemorrhage.

Resveratrol (RESV) improves histopathological and behavioral outcomes in diseases of the central nervous system. However, to the best of our knowledge, there have been no studies investigating its neuroprotective effects on secondary brain injury following intracerebral hemorrhage (ICH). The aim of the present study was to evaluate the neuroprotective function of resveratrol following ICH.

[Experimental study on mechanism of recompression therapy of decompression sickness].

Objective: To elucidate that recompression is the most efficient measure in removing the pathogenic factors.

Method: When rabbits were suffering from severe DCS, their pressure were immediately compressed to 0.5 Mpa.

[A study on etiology and pathogenic mechanism of decompression sickness].

Objective: To explain the etiology of decompression sickness (DCS) and to elucidate its pathogenic mechanism.

Method: Tunica conjunctiva was examined by microscopy and blood pressure was measured at the exposed femoral arteries in inadequately decompressed animals after hyperbaric exposure. Then pathological examinations were done.