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The correlations between mineral contents in musculus longissimus dorsi and meat quality for five breeds of pigs were studied in this experiment. Two imported breeds (Duroc and Yorkshires) and three local breeds (Huainan pig, Nanyang black pig, Queshan black pig) from Henan province of China were chosen in this trial. Ten 90 kg finishing pigs were selected randomly to slaughter from each breed. Mineral contents of K, Na, Ca, Fe, Mn, Cu and Zn in musculus longissimus dorsi were detected by atomic absorption spectrophotometry and their correlations with meat quality were also analyzed. The results showed : (1) Mn and protein contents had no significant difference among all the breeds (p>0.05), (2) K content in Duroc was higher than that in the other four breeds significantly (p

Aim: To identify new biomarkers for NPC diagnosis with an anti-EBV Western blot test kit. Methods: Serum samples from 64 NPC patients and healthy subjects with four specific VCA-IgA/EA-IgA profiles were tested with an anti-EBV Western blot test kit from EUROIMMUN AG. Proteins were quantified with scores of intensity visually assigned to the protein bands. The markers which showed statistical differences between the NPC and non-NPC subjects were further evaluated in another 32 NPC patients and 32 controls in comparison with established biomarkers including VCA-IgA, EA-IgA, EBV-related protein IgG, and EBV DNA. Results: Among the markers screened, EA-D p45-IgG showed a statistically significant difference ( p < 0.05) between NPC and non-NPC subjects with VCA-IgA positivy. In 32 VCA-IgA positive NPC patients and 32 control subjects, the diagnostic accuracy of EA-D p45-IgG was 78.1% with a positive predictive value of 77.8% and a negative predictive value of 78.6%. In the verification experiment, the specificity and sensitivity of EA-D p45-IgG were 75.0% and 90.6 %, respectively. Conclusions: EA-D p45-IgG might be a potential biomarker for NPC diagnosis, especially among VCA-IgA positive subjects.