Researchers got the DNA that codes for hemoglobin from a 43,000-year-old mammoth specimen. They then used E. coli bacteria to produce actual mammoth hemoglobin.

Objective To observe the clinical efficacy of radix patriniae heterophylla glucoside tablets on colorectal cancer and its synergism with chemotherapy.

E. coli showed low drug resistance ratio to carbapenem, cephamycins, amikacin and furadantin, and Klebsiella pneumoniae showed a good sensitivity to most of the antibiotics.