AIMTo examine the effects of different temperature protection on measures on preservation damages in liquid blood and explore the corresponding.

METHODSTake equal half blood samples from 10 healthy blood donors and divided each sample into two groups, put the fresh blood into CP2D-A solution at 0 degrees C and 4 degrees C, respectively and take the samples 21 days and 42 days, later and then measured the contents of membrane phospholipids with shafig-UR-rehman method, CaM with purification PED test, LPO with spectrophotometry.

RESULTSAt the same temperature, when the preservation time was prolonged, peroxidation was increased, the preservation damages were also augmented; the damages were declined when the temperature was lower during the same period, the aging of blood was more evident at 4 degrees C.

CONCLUSIONBlood peroxidation temperature is lower. The author pointed out the questions and prospects of blood preservation.

Adult ; Blood Donors ; Blood Preservation ; methods ; Erythrocyte Deformability ; Erythrocyte Membrane ; Female ; Humans ; Male ; Temperature ; Time Factors

OBJECTIVETo investigate the chemical constituents from the leaves of Vaccinium bracteatum.

METHODMany column chromatographic techniques were used for the isolation and separation of chemical constituents. Their structures were elucidated on the basis of spectral analysis and chemical evidences.

RESULTTwelve compounds were isolated from the plant, and they were identified as chrysoeriol (1), scopoletin (2), trans-p-hydroxycinnamic acid (3), trans-p-hydroxycinnamic acid ethyl ester (4), cafeic acid ethyl ester (5), beta-sitosterol (6), iuteolin (7), quercetin (8), esculetin (9), cafeic acid (10), isolariciresinol-9-O-beta-D-xyloside (11), 10-O-trans-p-coumaroylsandoside (12).

CONCLUSIONCompounds 4, 5, 11, 12 were isolated from the genus Vaccinium for the first time, and compounds 1, 2, 9, 10 were isolated from this plant for the first time.

Coumaric Acids ; chemistry ; Flavones ; Flavonoids ; chemistry ; Furans ; chemistry ; Glycosides ; chemistry ; Lignin ; chemistry ; Molecular Structure ; Plant Leaves ; chemistry ; Scopoletin ; chemistry ; Sitosterols ; chemistry ; Umbelliferones ; chemistry ; Vaccinium ; chemistry

OBJECTIVETo study the chemical constituents from roots of Platycodon grandiflorum.

METHODColumn chromatography (silica gel, macroporous resin, sephadex LH - 20 and the preparative RP - HPLC were used to isolate the constituents. Their structures were elucidated by physical and spectral data.

RESULTEight compounds were isolated and identified as tangeritin (1), 3-O-beta-D-glucopyranosylplatycodigenin methyl ester (2), 3-O-beta-D-glucopyranosylplaticogenic acid A lactone (3), 3-O-beta-D-glucopyranosylplatycodigenin (4), deapio-platyconic acid A lactone (5), deapio-platycodin-D (6), platycoside-G1 (7) and platycoside-E (8).

CONCLUSIONCompounds 1,3 and 5 were isolated from this plant for the first time.

Flavones ; chemistry ; isolation & purification ; Lactones ; chemistry ; isolation & purification ; Oleanolic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Plant Extracts ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Platycodon ; chemistry ; Saponins ; chemistry ; isolation & purification

Objective:To investigate the independent correlation between serum IL-6 level and delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (aSAH) and to evaluate its predictive value for DCI.Methods:Consecutive patients with aSAH admitted to the Affiliated Hospital of Jining Medical University from June 2017 to June 2019 were enrolled retrospectively. They were divided into DCI group and non-DCI group according to the diagnostic criteria of DCI. Multivariate logistic regression analysis was used to determine the independent correlation between serum IL-6 and DCI. Receiver operating characteristic (ROC) curve was used to evaluate the predictive value of serum IL-6 level for DCI. Results:A total of 160 patients with aSAH were enrolled. They aged 66.1±8.1 years, and 98 were males (61.3%); 76 patients (47.5%) had DCI. Multivariate logistic analysis showed that after adjusting for smoking, hypertension, systolic blood pressure, hyperlipidemia, and drug treatment, serum IL-6 (the first quartile as a reference, and the third quartile: odds ratio[ OR] 3.885, 95% confidence interval [ CI]1.361-7.189; the fourth quartile: OR 9.706, 95% CI 3.412-18.344), Glasgow Coma Scale score ( OR 2.174, 95% CI 1.325-4.538) and Fisher grade ( OR 3.267, 95% CI 1.638-6.725) were independently associated with DCI. The ROC curve showed that the area under the curve of serum IL-6 for predicting DCI was 0.777 (95% CI 0.706-0.849), and the optimal cut-off value was 13.01 ng/L. The sensitivity and specificity of predicting DCI were 72.4% and 71.4%, respectively. Conclusions:Serum IL-6 is an independent risk factor for DCI after aSAH, and has certain predictive value for DCI.

OBJECTIVETo study the chemical constituents from the whole plant of Lysimachia davurica.

METHODThe constituents were separated and purified by column chromatograph, and identified by spectral analysis and physical data.

RESULTSix compounds were isolated and identified as triacontanoic acid(I), palmitic acid(II), beta-amyrin(III), stigmasterol(IV), oleanolic acid(V), soya-cerebroside I (VI).

CONCLUSIONI, III, VI were isolated from this gene for the first time.

Cerebrosides ; chemistry ; isolation & purification ; Oleanolic Acid ; analogs & derivatives ; Plants, Medicinal ; chemistry ; Primulaceae ; chemistry ; Triterpenes ; chemistry ; isolation & purification

AIMTo study the triterpenoid saponins in the whole plant of Lysimachia davurica Ledeb.

METHODSColumn chromatography (including AB-8 macroporous resin, silica gel and ODS) was used to separate triterpenoid saponins whose structures were elucidated by ESI-MS, NMR (1D and 2D) and hydrolysis methods.

RESULTSTwo new triterpenoid saponins were isolated and established as 3beta, 16alpha, 28-trihydroxy-olean-12-en-3-0-(beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucuronopyranosyl)-28-0-beta-D-glucopyranoside) (I), 3beta, 16alpha, 28-trihydroxy-olean-12-en-3-O-(beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucuronopyranosyl)-28-0-beta-D-glucopyranoside) (II).

CONCLUSIONCompounds I and II are new compounds and named as davuricosides D and J.

Molecular Conformation ; Molecular Structure ; Plants, Medicinal ; chemistry ; Primulaceae ; chemistry ; Saponins ; chemistry ; isolation & purification ; Triterpenes ; chemistry ; isolation & purification

AIMTo study the triterpenoid saponins in the whole plants of Lysimachia capillipes Hemsl..

METHODSColumn chromatography (including AB-8 macroporous resin, silica gel and ODS) was used to separate triterpenoid saponins whose structures were elucidated by ESI-MS, NMR (1D and 2D) and hydrolysis methods.

RESULTSTwo new triterpenoid saponins were isolated and established as 3beta, 22alpha-dihydroxy-16alpha-angeloyloxy-28-->13-lactone-oleanane-3-O-[beta-D-glucopyranosyl-(1-->2)-alpha-L-arabinpyranosyl]-22-O-(6-acetyl)-beta-D-glucopyranoside (I), 3beta, 13beta, 22alpha-trihydroxy-16alpha-acetyloxyoleanane-28-oic acid Na-3-O-[beta-D-glucopyranosyl-(1-->2)-alpha-L-arabinpyranosyl]-22-O-beta-D-glucopyranoside (II).

CONCLUSIONCompounds I and II are new compounds and named as capilliposide I and capilliposide J.

Flavonoids ; chemistry ; isolation & purification ; Molecular Conformation ; Molecular Structure ; Plants, Medicinal ; chemistry ; Primulaceae ; chemistry ; Triterpenes ; chemistry ; isolation & purification

The paper takes literature in the Health Technology Assessment (HTA) field in Web of Science and " China Academic Journal Network Publishing Database" as its study subject,draws scientific knowledge map with EXCEL,CiteSpace on data like high-frequency keywords and burst terms and analyzes study hotspots and evolution trend.It suggests that HTA theoretical system be perfected,study be converted into demonstration and study cooperation be strengthened to promote study and development of China's HTA.

Objective To investigate immunity of a recombinant adenovirus vaccine(rAdV)containing codon-modified neuraminidase(Mod.NA)gene of H5N1 influenza virus in BALB/c mice and to screen for appropriate dose.Methods BALB/c mice were immunized with the rAdV-Mod.NA vaccine intramuscularly twice (double injection at 0 and 4~(th) week)in three groups,low dosage(10~5 TCI_(50) per dose),medium dosage(10~7 TCID_(50) per dose)and high dosage(10~9 TCID_(50) per dose).The effect of humoral and cell-mediated immunity were analysod at 5~th week.Results ①The rAdV-Mod.NA vaccine eould elicit both humoral and cell-mediated robust NA specific immunity in mice by neuraminidase inhibitor assay and IFN-γ ELISpot assay;②10~7 TCID_(50) per dose Was the appropriate dose;③ Peptide NA_(109-124):CRTFFLTQGALLNDKH and peptide NA_(182-199):AVAVLKYNGIITDTIKSW were the dominant epitopes for neuraminidase-immunized BALB/c mice,which was screened out from the whole length of neuraminidase of an H5N1 virus,A/Anhui/1/2005.Conclusion The recombinant adenovirus NA could induce specific humoral and cellular immune responses in BALB/c after immunization,which suggest rAdV-Mod.NA vaccine was a potential vaccine candidate against H5N1 influenza and worthy of further investigation.

Objective This study aimed to explore the potential effects of terahertz (THz) waves on primary cultured neurons from 4 rat brain regions (hippocampus,cerebral cortex,cerebellum,and brainstem)and 3 kinds of neuron-like cells (MN9D,PC12,and HT22 cells) under nonthermal conditions.Methods THz waves with an output power of 50 (0.16 THz) and 10 (0.17 THz) mW with exposure times of 6 and 60 min were used in this study.Analysis of temperature change,neurite growth,cell membrane roughness,micromorphology,neurotransmitters and synaptic-related proteins (SYN and PSD95) was used to evaluate the potential effects.Results Temperature increase caused by the THz wave was negligible.THz waves induced significant neurotransmitter changes in primary hippocampal,cerebellar,and brainstem neurons and in MN9D and PC12 cells.THz wave downregulated SYN expression in primary hippocampal neurons and downregulated PSD95 expression in primary cortical neurons.Conclusion Different types of cells responded differently after THz wave exposure,and primary hippocampal and cortical neurons and MN9D cells were relatively sensitive to the THz waves.The biological effects were positively correlated with the exposure time of the THz waves.