Aging ; Health ; Humans ; Longevity

To establish the quality standard for Pingyou granules. Methods: Paeoniae radix, Carthamus tinctorius, Coicis semen and Nutgrass galingale rhizome were qualitatively identified by TLC. The content of peoniflorin was determined by HPLC. The separation was performed on a Lichrospher-C18 (250 mm × 4. 6 mm, 5 μm) column with the mobile phase of methanol-acetic acid (24∶76). The detection wavelength was 232nm. Results:Paeoniae radix, Carthamus tinctorius, Coicis semen and Nutgrass galingale rhizome could be identified by TLC without any interference from the negative control. The linear range of peoniflorin was 6. 560-104. 920 μg·ml-1(r=0. 999 9) with the average recovery of 98. 77%(RSD=2. 73%,n=9). Conclusion:The qualitative identifi-cation is specific and reproducible, and the quantitative method is simple, accurate and reliable, which can be used in the quality con-trol of Pingyou granules.

Objective:To compare the models of guinea pig allergic rhinitis induced by different allergens. Methods: Ovalbumin (OVA), 2,4-tolylene diisocyanate (TDI) and alternariaalternata was respectively used as the allergens to establish the model of guinea pigs allergic rhinitis. The conformity of the models and human allergic rhinitis was studied through the behavioral indices, such as the times of nose itches, nasal discharge flow, histological properties and serum HA and IgE indices. Results:The times of sneezing and scratching nose, serum HA and IgE in OVA group was significantly different from those in the control group (P<0. 001 or P<0. 01). Conclusion:The models of allergic rhinitis induced by OVA are the same as allergic rhinitis in typical symptoms and pathological changes.

OBJECTIVE To analysis the effect of air disinfection by using nanometer light catalysis decontamination machine in operating room. METHODS By compare the effectiveness of air disinfection both by using nanometer light catalysis decontamination machine and ultraviolet rays light. RESULTS The result of tests is 0 CFU/m~2 by nanometer light catalysis decontamination machine and 33.3 CFU/m~2 by ultraviolet rays light in unmanned environment;By different groups: F=220.423,P=0.000,P

The stability of microbial flocculant (MBF) produced by Aspergillus sojae and its application to municipal thickened sludge dewatering were studied. The results showed that the MBF had high heat and acid-base endurance with high flocculating activity in a wide range of pH from 1.5 to 12. The MBF retained 96% of flocculating activity after 35 days preservation at 4℃, but in different pH the flocculating activity difference was very apparent after 35 days store at room temperature. The experimental results also demon- strated that the MBF was better than PAM and PAC in reducing specific resistance filtration. The optimal dose of MBF used for intensifying thickened sludge dewatering is 7%(volume fraction). And the more the volume of sludge is treated, the less the cost of MBF for unit volume sludge treatment.

Caliciviridae Infections ; epidemiology ; Child, Hospitalized ; Child, Preschool ; China ; epidemiology ; Female ; Gastroenteritis ; epidemiology ; virology ; Humans ; Infant ; Male ; Sapovirus ; isolation & purification

Adenoviridae ; classification ; genetics ; pathogenicity ; Adenoviridae Infections ; epidemiology ; prevention & control ; virology ; Age Distribution ; Child, Preschool ; Humans ; Infant ; Infant, Newborn

This study was aimed to optimize the purification technology for Sambucus williamsii Hance. With the morroniside as a marker, the purification technology for Sambucus williamsii Hance was optimized by different types of macroporous resin. The results showed that the optimum purification technology was that, the extract of less than 1:250 (morroniside:resin) was adsorbed and the AB-8 resin was washed with distilled water, and then the morroni-side was eluted from the macroporous resin with 10% ethanol. And the content of the morroniside was more than 50%. It was concluded that the purification technology was simple, reliable, repeatable and suitable for industrial production.

OBJECTIVE:To investigate the effect of shen-fu injection on toxic reaction relief in the chemotherapy for moderate to advanced non-small cell lung cancer(NSCLC).METHODS:130 patients of NSCLC were randomly divided into treatment group and control group,2 groups both received the second-generation regimen for chemotherapy,the major chemotherapeutic agents included vinorelbine,gemcitabine and paclitaxel,the treatment group was given intravenous shen-fu injection 60ml/d for continuous2weeks plus chemotherapy.RESULTS:The toxic reactions in treatment group significantly decreased compared to that in the control group(P

Objective To observe the impairment of different doses of cyclosporine A (CsA) to the rat myocardial tissue to offer scientific evidence for the long-term safe application of CsA in heart transplantation. Methods Eighty-four female Wistar rats, each weighing of (200 ± 25)g, were randomly divided into 12 groups. On days 7,14,21 after a constant peritoneal injection of CsA(0,5,10,15 mg/kg) and 1 ml physiological saline in control group, the rats were put to death, the rat myocardial tissue taken, to observe the pathologic and structural changes of the tissue cells under light microscope and electron microscope. The contents of rat myocardium tissue malondialdehyde(MDA) and superoxide dismutase(SOD) were measured;cardiomyocyte apoptosis was detected and accounted, apoptosis index(AI) was measured with the method of TUNEL. Results Small dose of CsA(5 mg/kg)had no obvious effects on cardiac tissue, in CsA groups of 10 mg/kg and 15 mg/kg, under the light microscope, there appeared edema, degeneration and necrosis of myocardium, part of cardiac myocyte had different level cavity;under the electron microscope, there appeared mitochondria damage, nucleus shrinkage and chromatic margination, part of cardiac myocyte had focus cavity. There was dilated endoplasic reticulum in the sarcoplasm. The effects of different time and dose on MDA content of rat myocardium tissue had statistical significance (F = 6.37,10.15, both P < 0.05). Interaction between time and dose existed statistical significance (F=7.14, P< 0.05). The MDA contents of CsA group of 10 mg/kg and 15 mg/kg were [(2.29 ± 0.18), (3.10 ± 0.45), (2.57± 0.37)nmol/L] and [(3.09±0.63), (3.32 ±0.52), (3.34 ± 0.29)nmol/L] on days 7,14,21 after a constant peritoneal injection of CsA, which were obviously higher than the control group [(1.98 ± 0.20), (2.04 ± 0.52), (1.99 ± 0.26) nmol/L, all P < 0.05], respectively. The effects of different time and dose on SOD activity of rat myocardium tissue had statistical significance(F = 8.43,11.69, both P < 0.05). Interaction between time and dose existed statistical significance(F = 9.86, P < 0.05). The SOD activity of CsA groups of 10 mg/kg and 15 mg/kg were (15.95 ± 1.00), (12.74 ± 1.31), (14.01 ± 0.81)nmol/L and (13.04 ± 1.01), (14.68 ± 0.81), (14.01 ± 0.63)nmol/L on days 7,14,21 after a constant peritoneal injection of CsA, which were obviously higher than the control group [(10.38 ± 0.80), (9.73 ± 0.58), (10.20 ± 0.26)nmol/L, all P < 0.05], respectively. Apoptosis nucleus appeared huffy or brown under the light microscope. The effects of different time and dose on AI of rat myocardium tissue had statistical significance (F = 10.02,20.46, both P < 0.05). Interaction between time and dose existed statistical significance (F = 15.73,P < 0.05). The AI of CsA groups of 10 mg/kg and 15 mg/kg were (6.91 ± 0.70)%, (11.10 ± 2.05)%,(19.81 ± 5.00)% and (11.02 ±2.02)%,(15.51 ± 1.31)%,(33.40±6.60)% on days 7,14,21 after a constant peritoneal injection of CsA, which were obviously higher than the control group [(4.40 ± 0.13)%, (4.60± 1.20)%, (5.20 ± 1.10), all P < 0.05] and CsA group of 5 mg/kg [(4.60 ± 0.10)%, (5.00±2.11)%, (5.43± 1.11)%, all P < 0.05], respectively. Conclusion Small dose of CsA has no obvious effects on cardiac tissue, but large dosage can induce myocyte apoptosis and damage by causing oxidative stress;after implantation, attention should be paid to cardiac impairment due to constant large dosage of CsA.