Characteristics and Risk Assessments of Mercury Pollution Levels at Domestic Garbage Collection Points Distributed within the Main Urban Areas of Changchun City.

The mercury that is released from the centralized treatment of municipal solid waste is an important source of atmospheric mercury. We chose the main urban area of Changchun as a representative area. Environmental factors such as total mercury content, temperature, wind speed, and other factors were measured in samples from the trash cans of two types of collection points (trash cans and garbage stations), the topsoil under the selected trash cans, and the ambient air above the selected trash cans.

A Novel Toxin from Haplopelma lividum Selectively Inhibits the Na1.8 Channel and Possesses Potent Analgesic Efficacy.

Spider venoms are a complex mixture of peptides with a large number of neurotoxins targeting ion channels. Although thousands of peptide toxins have been identified from venoms of numerous species of spiders, many unknown species urgently need to be investigated. In this study, a novel sodium channel inhibitor, µ-TRTX-Hl1a, was identified from the venom of .

A novel platelet glycoprotein Ib-binding protein with human platelet aggregation-inhibiting activity from Trimeresurus jerdonii venom.

Platelet glycoprotein Ib (GPIb) is a primary adhesion receptor and involved in platelet-related disorders. However, it is difficult to study GPIb-specific platelet stimulation using physiological ligands in vivo. GPIb-binding snake C-type lectins (snaclecs) are useful tools for exploring GPIb in vitro because they act on platelets differently.

Two antimicrobial peptides from skin secretions of Rana grahami.

Two antimicrobial peptides manifested a broad spectrum of antimicrobial activity against various microorganisms have been isolated from skin secretions of Rana grahami. These antimicrobial peptides were named grahamin 1 and grahamin 2. Their primary structures are GLLSGILGAGKNIVCGLSGLC and GLLSGILGAGKHIVCGLSGLC, respectively, determined by Edman degradation and mass spectrometry.

Two families of antimicrobial peptides from wasp (Vespa magnifica) venom.

The hornet possesses highly toxic venom, which is rich in toxin, enzymes and biologically active peptides. Many bioactive substances were identified from wasp venom. Two families of antimicrobial peptides were purified and characterized from the venom of the wasp, Vespamagnifica (Smith).

A Novel Myotoxin from the Venom of Trimeresurus mucrosquamatus.

A novel myotoxin, designated TMPB, was purified from the venom of Trimeresurus mucrosquamatus by Sephadex G-100 superfine gel chromatography and fast protein liquid chromatography (FPLC). The N-terminal sequence of 24 amino acid residues was determined by protein sequencer. The sequence similarities between TMPB and other two phospholipase A(2) (PLA2s) previously purified from the same venom were 41.