weichang’an (wca) pill, a traditional chinese patent medicine consisting of ten chinese medicinal herbs, has been used to treat irritable bowel syndrome and functional dyspepsia for several decades. in this study, twelve bioactive constituents in the methanol extract of wca were accurately identified since ms/ms fragmentation behavior of the references and the standards by using hplc-dad-esi-ms...

A simple and high-throughput screening method for the analysis of 136 pesticides in avocado ( Persea americana ) by LC-(+)-ESI-MS/MS and GC-MS/MS is presented. A modified QuEChERS sample preparation method was developed to improve the extraction recovery of highly lipophilic pesticides. Extracts from minced avocados after acetonitrile (MeCN) extraction were directly injected to LC-MS/MS, wherea...

multiple sclerosis (ms) is the most common autoimmune disease, especially among young’s. neuroinflammation results from inflammation in cns and it may cause different disorders and diseases .it is also known as a detriment in multiple sclerosis. in fact, it causes problems and symptoms in ms. in ms the self-immune cells attack the myelin of neurons, it maybe the nerve in brain or spinal cord. d...