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Table 2 The topmost frequent words for 20 topics after fitting to the ginseng-related articles by Bio-DTM

From: Revealing topics and their evolution in biomedical literature using Bio-DTM: a case study of ginseng

Topic ID Topmost frequent words of topic
1 Renal, genom, amino, biosynthesi, clone, cultivar, yeast, cdna, athlet, polymorph
2 Stem, skin, leaf, bone, dri, phenol, marrow, stage, fibroblast, wound
3 Infect, radic, scaveng, heat, virus, substrat, cyp3a4, influenza, hydroxyl, pgp
4 Diet, muscl, cholesterol, fat, glycosid, adipocyt, ppargamma, antibodi, ampk, insulin
5 Fraction, polysaccharid, ferment, pesticid, residu, column, frg, transit, neutral, pectin
6 Strain, soil, genus, nov, warfarin, polar, bacterium, minor, dsm, genom
7 Cam, tcm, irradi, hair, radiat, sperm, exhaust, alkalin, train, contamin
8 Channel, ca2, cardiac, relax, oocyt, contract, muscl, eno, lpa, ion
9 Injuri, women, fatigu, myocardi, estrogen, ischemia, menopaus, syndrom, cerebr, ischem
10 Pharmacokinet, ion, formula, prescript, ppd, rhizom, ppt, urin, raw, excret
11 Cultiv, temperatur, wild, seed, white, embryo, genet, flower, somat, pathogen
12 Cancer, lung, colon, intak, metastasi, colorect, ventricular, pulmonari, failur, mmp9
13 Diabet, intestin, insulin, toler, digoxin, absorpt, pancreat, beta, grg1, morphin
14 Apoptosi, macrophag, nfkappab, ros, cox2, cancer, mitochondri, angiogenesi, arrest, p38
15 Transform, medium, hairi, transgen, cold, degrad, spectroscopi, biomass, ml1, callus
16 Breast, vaccin, adjuv, discrimin, prostat, skin, fingerprint, antibodi, metabolom, antigen
17 Pressur, hepat, oil, ethanol, metal, aqueous, allerg, hepatotox, fibrosi, asthma
18 Platelet, lymphocyt, spleen, aggreg, pain, cisplatin, nrf2, antiplatelet, milk, camp
19 Berri, behavior, alcohol, depress, memori, swim, ach, learn, avoid, erectil
20 Neuron, cognit, memori, hippocampus, drink, behavior, glutam, energi, astrocyt, task