We have detected Hepatitis B viral DNA on the surface of needles after removing acupuncture needles. Using a polymerase chain reaction we confirmed a band specific for Hepatitis B virus in one out of two patients who are known carriers. Our study indicates that acupuncture needles represent one possible sources of viral infection.

We examined whether wiping acupuncture needles with cotton could remove Hepatitis C viruses (HCV) adhering to the needles. The needles were incubated in the serum from patients infected with HCV, then the needles were wiped with dry cotton or cotton soaked in 80% ethanol. RNA was extracted from these needles and the HCV genome was amplified by reverse transcription-polymerase chain reaction (RT-PCR). The results indicated that the HCV genome was not detected when the needles were wiped with dry cotton. However, in one of two experiments, the HCV genome was detected after wiping the needles with cotton soaked in ethanol. We also examined the HCV contamination on the needles extracted from patients infected with HCV. The HCV genome was detected on extracted needles that were not wiped with cotton, but the genome was not found on needles wiped with cotton at the time of extraction. Therefore, wiping acupuncture needles with cotton might effectively remove HCV on the contaminated needles, but the viruses could not always be re-moved by simply wiping the needles with cotton.

The elimination half-lives of in Interleukin-6 (IL-6) and cytokine-induced neutrophil chemoattractant-1 (CINC-1) in rats after inflammatory stimulation were investigated. Five male Sprague-Dawley rats were used (age, 9 weeks; body weight, 235–375 g). Turpentine oil was intramuscularly injected at a dose of 2 mL/kg body weight to induce acute inflammation. Blood was collected pre-injection and 6, 12, 24, 36, 48, 60, 72, 84, and 96 h after the turpentine oil injection. Serum concentrations of IL-6, CINC-1, and α₂-macroglobulin (α2M) were measured by enzyme-linked immunosorbent assay. Half-lives were calculated as 0.693/elimination rate constant. The serum concentration of α2M peaked at 48 h after turpentine oil injection. Serum concentrations of IL-6 and CINC-1 increased and peaked at 12 and 24 h, respectively. The terminal elimination half-lives of IL-6 and CINC-1 were 15.5 and 29.9 h, respectively. The half-life of CINC-1 was significantly longer than that of IL-6 (P=0.006). These results suggested that these cytokines synthesized in response to inflammatory stimulation were rapidly eliminated in rats. The serum concentrations of these cytokines should be measured at an early stage if these cytokines will be used as surrogate inflammatory markers instead of acute-phase proteins.
Acute-Phase Proteins ; Animals ; Body Weight ; Cytokines ; Enzyme-Linked Immunosorbent Assay ; Half-Life ; Humans ; Inflammation ; Interleukin-6* ; Male ; Neutrophils* ; Rats* ; Rats, Sprague-Dawley ; Turpentine

The degree of hepatopathy affecting the synthesis of α2-macroglobulin (α2M) as an acute phase protein in rats was investigated. Hepatopathy was induced in Sprague-Dawley rats by intravenous administration of galactosamine at a dose of 30 mg/kg for 7 days. Inflammation was induced by intramuscular injection of turpentine oil at a dose of 2 mL/kg. Blood was collected before turpentine oil injection and at 24, 48, 72 and 96 h after injection. Serum concentrations of α2M were measured by enzyme-linked immunosorbent assay. Mean values of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in rats administered galactosamine were significantly higher than in controls. Mean values of body weight and total protein were significantly lower than in controls. Serum concentrations of α2M in the galactosamine group were significantly lower than in controls. Kinetic parameters, area under the concentration-time curve (AUC0–96) and maximum serum concentration (Cmax), were significantly lower than in controls. The cut-off value for detecting the effects on synthesis of α2M in liver was 46.9 mg·h/mL. Seven rats (77.8%) were assessed for decreases in the synthesis of α2M due to hepatopathy. Two rats showed no influence on the synthesis of α2M, despite administration of galactosamine. AST and ALT in these two rats were ≤ 285 and ≤ 174 U/L, respectively. In conclusion, synthesis of α2M in rats is evidently suppressed in the severe stages of hepatopathy.