Humans ; Occupational Health ; Workplace ; statistics & numerical data

Humans ; Tinnitus

Objective To investigate the different expressions of adiponectin receptor 2(AdipoR2) mRNA in liver between diet-induced obese rats and controls.Methods The level of AdipoR2 mRNA expression was detected by reverse transcriptase polymerase chain reaction(RT-PCR).Insulin sensitivity was evaluated by insulin sensitivity index(ISI).Results Diet-induced obese rats showed higher expression of AdipoR2 mRNA compare to controls.The ISI of diet-induced obese rats was lower than that of controls.Conclusion High energy diet induceds AdipoR2 expression in liver.

By Silica gel, Sephadex LH-20 and other materials for isolation and purification and by physicochemical methods and spectral analysis for structural identification, 32 compounds were isolated and identified from ethyl acetate portion of alcohol extract of the Osmanthus fragrans. Their structures were identified as boschniakinic acid (1), ursolaldehyde (2), augustic acid (3), arjunolic acid (4), 5-hydroxymethyl-2-furancarboxaldehyde (5), isoscutellarein (6), 6, 7-dihydroxycoumarin (7), 2α-hydroxy-oleanolic acid (8), quercetin-3-0-β-D-glu-copyranoside (9), D-allito (10), 5, 4'-dihydroxy-7- methoxyflavone-3-0-β-D-glucopyranoside (11), 5,7-dihydroxychromone (12), lupeol (13), naringenin (14), acetyloleanolic acid (15), chlorogenic acid (16), kaempferol-3-0-β- D-glucopyranoside (17), oleanolic acid (18), kaempferol-3-0-β-D-galactopyanoside (19), 3', 7-dihydroxy-4'-methoxyisoflavon (20), ergosta-4,6,8 (14), 22-tetraen-3-one (21), p-hydroxycinnamic acid (22), syringaresinol (23), 3,4-dihydroxyacetophenonel (24), β-sitosterol (25), ethyl p-hydroxyphenylacetate (26), benzoic acid (27), caffeic acid (28), coelonin (29), p-hydorxy-phenylacetic acid (30), p-hydroxyacetophenone (31), and methyl-p-hydroxphenylacetate (32). Except for compounds 2, 4, 5, 8-11, 13, 15, 18, 20, 25, and 27, the rest were isolated from the Osmanthus fragrans for the first time.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Molecular Structure ; Oleaceae ; chemistry ; Plants, Medicinal ; chemistry ; Spectrometry, Mass, Electrospray Ionization

Humans ; Liver Cirrhosis ; immunology

BACKGROUNDTo study the composition and significance of the inclusion bodies of human cytomegalovirus (HCMV).

METHODSMicrodissection of inclusion bodies, PCR and Southern blot were adopted to detect DNA, and immunohistochemistry method and catalyzed signal amplification (CSA) were used to detect the different antigens of HCMV.

RESULTSThe inclusion bodies of HCMV were separated from the tissue section of human salivary gland. The fragments amplified by PCR from these dissected inclusion bodies were confirmed to be the DNA of HCMV. With the immunohistochemical method CSA, the immediately early and early antigens of HCMV were detected with monoclonal antibodies DDG9/CCH2, while matrix protein AAC10 was negative in the inclusion bodies.

CONCLUSIONThe ingredient of inclusion bodies of HCMV included the DNA and the antigens expressed in specific stage of the virus.

Antigens, Viral ; analysis ; immunology ; Cytomegalovirus ; genetics ; immunology ; Cytomegalovirus Infections ; diagnosis ; immunology ; virology ; DNA, Viral ; analysis ; genetics ; Humans ; Immunohistochemistry ; Inclusion Bodies ; chemistry ; immunology ; virology ; Microdissection ; Salivary Glands ; chemistry ; immunology ; virology

OBJECTIVETo investigate the effects of human cytomegalovirus (HCMV) on the cell cycle of duct epithelial cell cultures of human salivary gland (HSG) in vitro and relative mechanism.

METHODSHSG was cultured in vitro. Reverse transcriptase polymerase chain reaction (RT-PCR) and nest-RT-PCR were used respectively to investigate ie1/ie2 transcription in HSG infected by human cytomegalovirus(HCMV). The effects of HCMV on the cell cycle of HSG were studied by flow cytometry in vitro. The expression of cyclin D1 in HSG infected by HCMV was detected by Western blotting.

RESULTSHCMV iel/ie2 transcription could be detected in HSG infected by HCMV. HCMV arrested productively infected cells in G1 stage. And cyclin D1 was down-regulated in HCMV infected HSG.

CONCLUSIONHCMV inhibits proliferation of HSG by affecting G1/S check point and down-regulating cyclin D1 in vitro.

Blotting, Western ; Cell Culture Techniques ; Cell Cycle ; physiology ; Cyclin D1 ; genetics ; metabolism ; Cytomegalovirus ; physiology ; Epithelial Cells ; cytology ; virology ; Flow Cytometry ; Humans ; Polymerase Chain Reaction ; Reverse Transcriptase Polymerase Chain Reaction ; Salivary Glands ; cytology ; metabolism

OBJECTIVETo study of exogenous substances on the germination rate of Platycodon grandiflorum and offer the basis for the standardized culture of P. grandiflorum.

METHODAt 25 degrees C, under darkness and lightness, do pretreatmeats on seeds by using GA3, H2O2, KMnO4, PEG at different concentrations.

RESULTThe results indicated that the pretreatments with GA3 at a concentrating of 50-250 mg x L(-1) and 1%-2% of H2O2 could increase germination of P. grandiflorum seed at a certain degree. Contrariwise 0.1%-0.5% of KMnO4 and 15%-35% of PEG inhibited the germination.

CONCLUSIONPretreatment with 50-250 mg x L(-1)GA3 and H2O2 at a low cencontration could increase the seed germination of P. grandiflorum.

Dose-Response Relationship, Drug ; Germination ; physiology ; Gibberellins ; administration & dosage ; pharmacology ; Hydrogen Peroxide ; administration & dosage ; pharmacology ; Light ; Plant Growth Regulators ; pharmacology ; Plants, Medicinal ; growth & development ; physiology ; Platycodon ; growth & development ; physiology ; Polyethylene Glycols ; pharmacology ; Potassium Permanganate ; pharmacology ; Seeds ; growth & development ; physiology

OBJECTIVETo investigate the influence of escharectomy during shock stage on plasma lipid and free fatty acid levels in scalded rats.

METHODSThirty-two adult Wistar rats inflicted with 30% TBSA III degree scalding were employed as the model and were divided into normal control (NC), scalding control (SC) and treatment groups (T), and the latter was further divided into three sub groups according to the time of escharectomy, i.e. 8 postburn hour (PBHs) (T8), 24 PBHs (T24) and 96 PBHs (T96) groups. The rats were sacrificed at 168 PBHs. The postburn changes in the rat plasma lipid and free fatty acid levels were determined.

RESULTS1) There was significant increase in serum triglyceride (TG), cholesterol (CHO), high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL), apolipoprotein A (ApoA), apolipoprotein B (ApoB) and all the free fatty acids (FFAs) in the total serum FFAs excluding myristic acid (P < 0.05) at 168 PBHs in rats of all the T groups. 2) The serum levels of TG, CHO, ApoB, total FFA, lauric acid, palmitic acid, zoomaric acid, oleic acid and linoleic acid in T8 and T24 groups were evidently lower than those in SC group (P < 0.05). The plasma levels of VLDL, stearic acid and arachidonic acid in T8 were obviously lower than those in SC group (P < 0.05); 3) In T96 group, the serum levels of ApoB and lauric acid were significantly lower than those in SC group (P < 0.05), but all the other indices remained higher than those before injury.

CONCLUSIONThere was enhanced fat mobilization after severe burn injury. Escharectomy during shock stage might decrease fat mobilization, which was beneficial to the restoration of normal lipid metabolism.

Animals ; Burns ; blood ; surgery ; Fatty Acids ; blood ; Lipids ; blood ; Male ; Rats ; Rats, Wistar ; Shock, Traumatic ; blood ; surgery

OBJECTIVETo understand the effect of illumination, temperature on the germination of the Prunella vulgaris seeds.

METHODThe general germination method.

RESULTIllumination showed no clearly effect on the germination rate of the P. vulgaris seeds under proper temperature condition; However, illumination was the main factor to determine the germination rate of the P. vulgaris seeds when the temperature condition was unsuitable. The germination rate of the P. vulgaris seeds decreased with the time and increased when the marinating time was from 12 to 36 hours. When temperature reached 5-25 9 degrees C, the trend of the germination rate increased at frst and then decreased.

CONCLUSIONThe optimal germination condition of P. vulgaris seeds is 12 h of marinating time at the temperature of 20 degrees C under illumination.

Germination ; Lighting ; Plants, Medicinal ; growth & development ; Prunella ; growth & development ; Seeds ; growth & development ; Temperature