ABSTRACT
Objective:To observe the thermesthesia thresholds of the heat-sensitive acupoints in patients with knee osteoarthritis (KOA), and to provide scientific evidence for acupoint selection based on acupoint sensitization. Methods:Forty-six patients with KOA of swelling type were recruited. By using the quantitative thermesthesia testing, the thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance at Xuehai (SP 10), Neixiyan (EX-LE 4) and Yinlingquan (SP 9) were detected. The subjects were then divided into heat-sensitive groups and non-heat-sensitive groups according to whether there was a phenomenon of heat-sensitive moxibustion sensation at each acupoint, to compare the thermesthesia thresholds between the two groups. Results: The thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance were respectively (38.21±2.03)℃ , (44.4,±1.8,)℃ and (48.,9±0.,4)℃ in the heat-sensitive group of Xuehai (SP 10), versus (3,.,,±1.93)℃ , (42.91±2.0,)℃ and (4,.9,±1.14)℃ in the non-heat-sensitive group of Xuehai (SP 10); the thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance were respectively (3,.4,±1.,,)℃ , (44.,,±1.,3) , and (4,.48±0.4,) in the heat℃℃-sensitive group of Neixiyan (EX-LE 4), versus (3,.92±1.,9)℃ , (42.,2±1.94)℃ and (4,.,3±0.41)℃ in the non-heat-sensitive group of Neixiyan (EX-LE 4); the thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance were respectively (3,.30±2.23)℃ , (44.39±1.92)℃ and (4,.,,±0.,8)℃ in the heat-sensitive group of Yinlingquan (SP 9), versus (3,.0,±1.8,)℃ , (42.,3±1.88)℃ and (4,.91±0.,2)℃ in the non-heat-sensitive group of Yinlingquan (SP 9). The statistical analyses showed that the thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance of each heat-sensitive group (all the three acupoints) were significantly higher than those of each corresponding non-heat-sensitive group (P<0.01). Conclusion:There were differences in the thermesthesia thresholds between heat-sensitized and non-heat-sensitized acupoints in patients with KOA of swelling type; and the thermal sensation threshold, thermal pain threshold, and threshold of thermal pain tolerance of the heat-sensitized points were significantly higher than those of the non-heat-sensitized ones.
ABSTRACT
Objective To observe the effect of Interferon-α2b on HEL cells (human erythroleukemia cell line) growth, apoptosis and JAK2 V617F mutation gene expression. Methods HEL cells were placed in RPMI1640 containing 10% FBS and incubated in a cell incubator. Cells in the logarithmic growth phasem were collected, adjusting the cell density to 1 × 105/mL for experimental research. The interferon concentration in five groups were 0, 5 × 105, 10 × 105, 50 × 105, 100 × 105 U/L, with different incubation time (0, 24, 72, 120 h), respectively. The cell growth status in different groups was observed in the inverted optical microscope; MTT was used to detect the inhibition of interferon on HEL cell proliferation. Cell apoptosis was detected by flow cytometry. Fluorescence quantitative PCR was used to detect the mutation gene of JAK2 V617F expression. Results Inhibition rates of Interferon on the HEL cell proliferation in 5 × 105 U/L, 10 × 105 U/L, 50 × 105 U/L, 100 × 105 U/L groups were 18.57%, 25.10%, 42.10%, 57.00%, respectively. JAK2 V617F/GAPDH by fluorescence quantitative was 1.556, 1.213, 0.870 respectively under the concentration of interferon 100 × 105 U/L for 24, 72, 120 h. Conclusions Interferon-α2b can inhibit HEL cells proliferation and induce HEL cells apoptosis. Increasing concentration of interferon increases HEL cell apoptosis rate. Interferon can inhibit JAK2 V617F expression of HEL cells in a dose-dependent manner.
ABSTRACT
Objective:This study aimed to achieve the early diagnosis and active treatment of adult hemophagocytic syndrome (HPS) and investigate the clinical characteristics and prognostic factors of this syndrome. Methods:A single-center retrospective analysis was performed to analyze clinical characteristics, laboratory findings, and survival data. Results:In 58 patients, the most common clinical manifestations were fever (100%) and splenomegaly (89.7%). The most common laboratory parameters were serum ferritin 500 g/L (100%) and peripheral cytopenia in two or more lineages (96.6%). platelet count, fibrinogen, and lactate dehydrogenase in the death group were significantly lower than in the survival group (P=0.000, 0.001, and 0.000). Survival analysis results showed that infections in the rheu-matological group exhibited good prognosis [the overall survival (OS) time was not reached in 190 d]. Patients with unexplained causes had moderate prognosis (OS time was 60 d);tumor-associated HPS patients had poor prognosis (the OS time was only 30 d). Univariate analysis results showed that patients with Fbg<1.5 g/L, PLT<40×109/L, and LDH≥2000 U/L also exhibited poor prognosis (P=0.000). Multivariate analysis results showed that PLT<40 × 109/L was an independent adverse factor (HR=6.472, 95%CI:1.526-26.065, P=0.011). Conclusion:HPS exhibits complex clinical manifestations and varied etiology. Patients with infection and rheumatism-related HPS had good prognosiss compared with those manifesting tumor-associated HPS. Fbg<1.5 g/L, PLT<40×109/L, and LDH≥2 000 U/L were the univariate factors that affected the survival time of patients. PLT<40×109/L is an independent adverse factor. These patients need systemic treatments as early as possible.