Antineoplastic Agents, Phytogenic ; therapeutic use ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Leukemia, Myeloid, Acute ; drug therapy ; Phytotherapy ; Plants, Medicinal ; chemistry

In the fast pace of modern life and under the heavy work pressure, the prevalence of depression has increased year by year. Meanwhile, the demands for antidepressant drugs have also grown, especially the high-efficiency and low-toxicity natural antidepressant drugs, mainly including polyphenols, flavonoids, organic acids, alkaloids and terpenoids. Cytochrome P450 (CYP450) is a type of enzymes involving oxidative metabolism of drugs in vivo, and can change the pharmacokinetics and efficacy of drugs. Therefore, it is of important significant to define the effect of natural antidepressant drugs on CYP450 in human bodies, in order to improve the rational clinical medication, avoid drug interactions and reduce adverse reactions.
Animals ; Antidepressive Agents ; pharmacology ; Cytochrome P-450 Enzyme Inhibitors ; pharmacology ; Cytochrome P-450 Enzyme System ; metabolism ; Depression ; drug therapy ; enzymology ; Drugs, Chinese Herbal ; pharmacology ; Humans

To investigate the production status and the safety influence factors of wolfberry in China. We investigated the detailed factors which affect the quality safe of wolfberry in the periods of July-August 2013 and July-September 2009. The factors include fertilizing patterns, the used pesticide and preliminary process wolfberry. The factors were discussed according to the results of investigation, and suggestions were proposed for the management and production departments of wolfberry.
China ; Fertilizers ; analysis ; Lycium ; chemistry ; growth & development ; microbiology ; parasitology ; Pest Control ; Plant Diseases ; microbiology ; parasitology ; prevention & control

OBJECTIVETo investigate the protective effect of neferine against damages of endothelial cells induced by lysophos-phatidylcholine (LPC) and the relationship with asymmetric dimethylarginine (ADMA).

METHODThe human umbilical vein endothelial cells (HUVEC-12) were treated with LPC (10 mg x L(-1)) for 24 h to establish the model of endothelial cells damages; HUVECs were prior exposed to neferine (0.1, 1.0 or 10.0 micromol x L(-1) ) for 1 h, and then exposed to LPC in the presence of the neferine for 24 h. At the end of the experiment, the cultured medium was collected for measuring the concentration of nitric oxide (NO), aleic dialdehyde (MDA) as well as ADMA and the cells were collected for measuring the level of intracellular reactive oxygen species (ROS).

RESULTCompared with control group, exposure of endothelial cells to LPC (10 mg x L(-1)) for 24 h significantly increased the concentration of MDA and ADMA in the medium and the level of intracellular ROS and coinstantaneously significantly decreased the concentration of NO in the medium. Neferine (0.1, 1.0 or 10.0 micromol x L(-1)) significantly inhibited the elevated concentration of MDA, ADMA as well as the level of intracellular ROS and coinstantaneously significantly attenuated the decreased level of NO induced by LPC.

CONCLUSIONNeferine can protect the endothelial cells against damages induced by LPC and the protective effect is related to the decrease of the concentration of ADMA.

Arginine ; analogs & derivatives ; metabolism ; Benzylisoquinolines ; pharmacology ; Cell Line ; Endothelial Cells ; drug effects ; metabolism ; Humans ; Lysophosphatidylcholines ; pharmacology ; Malondialdehyde ; metabolism ; Nitric Oxide ; metabolism ; Reactive Oxygen Species ; metabolism

Objective To investigate the clinical value of pentraxins 3 ( PTX3) in children's com-munity-acquired pneumonia ( CAP ). Methods We collected 122 inpatients diagnosed with CAP from Department of Respiratory Medicine and Intensive Care Unit ( ICU) of Hunan Children's Hospital from March 2016 to January 2017,whose ages were between 28 days and 18 years old. We collected 20 healthy subjects as control group. According to the severity of illness,122 inpatients were divided into mild group and severe group. According to respiratory failure or not,122 inpatients were divided into the respiratory failure group and the non-respiratory failure group. According to the optimal thresholds of PTX3 in the study on respir-atory failure,122 inpatients were divided into group A (≤165. 30 ng/ml) and group B (>165. 30 ng/ml). Results (1) There was significant difference in the PTX3 level within 24 h after admission of patients among mild group, severe group and control group [72. 56 (96. 02) ng/ml,211. 00 ( 110. 72 ) ng/ml,9. 45 (3. 29) ng/ml,H＝87. 99,P<0. 001]. The PTX3 level of patients with respiratory failure was higher than non-respiratory failure group and the difference was statistically significant[225. 60(189. 56)ng/ml,138. 49 (144. 40) ng/ml,U ＝494. 00,P <0. 001]. (2) Receiver Operating Characteristic analysis with TNF-α, CRP,PCT and PTX3 showed that the area under the curve of PTX3 was largest in diagnosis of respiratory failure. The top three of accuracy were PTX3,PCT and TNF-α respectively to diagnose the severe pneumonia with respiratory failure. The sensitivity and specificity were 0. 826 and 0. 657,0. 783 and 0. 566,0. 730 and 0. 586,respectively. ( 3 ) The correlation analysis between PTX3 and other inflammatory biomarkers and clinic opathological features of patients with CAP showed that TNF-α,PCT were positively correlated with PTX3 level,the correlation coefficients were 0. 59,0. 18 respectively. PTX3 level was positively correlated with respiratory frequency (r＝0. 388),and negatively correlated with pulse oximetry ( r ＝ －0. 251) and PaO2(r＝ －0. 316). The D-dimer level of PTX3 severe group (group B) was higher than that of the mild group (P＝0. 022). There was a positive correlation between the PTX3 level and the D-dimer line ( r ＝0. 228,P＝0. 012). (4) Dynamic observation of PTX3 level in children with CAP:PTX3 level [M(IQR), ng/ml] was highest at 24 h after hospital admission,equaling to 152. 55(152. 22); PTX3 equaled to 89. 12 (111. 44) after 3 days'treatment; and decreased to 47. 26(68. 51) after 7 days'treatment,and the difference among these time points were statistically significant(P<0. 01). The difference of PTX3 level between mild group and severe group in distinct time points(less 24 h,3 days and 7 days after hospital admission) was also statistically significant(P<0. 001). Conclusion The level of serum PTX3 in children with CAP was posi-tively correlated with TNF-α,PCT and D-dimer. Serum PTX3 is a potential new biomarker to revel the sever-ity of community-acquired pneumonia of children.

OBJECTIVETo study whether all-trans retinoic acid (ATRA) combined with arsenic trioxide (As(2)O(3)) in acute promyelocytic leukemia (APL) treatment could further improve the clinical and molecular remission rate.

METHODThirty one newly-diagnosed APL patients of whom 15 were males, 16 females and median age 35.4 years entered into the study. They were treated with ATRA 25 mg x m(-2) x d(-1) combined with As(2)O(3) 0.16 mg x kg(-1) x d(-1) until complete remission (CR). The doses were adjusted according to white blood cell (WBC) counts, occurrence of RA syndrome and the status of liver function. CR rate, time of reaching clinical and molecular remission and side effects were observed.

RESULTTwo patients died 2 approximately 3 days after the treatment due to intracranial hemorrhage, and 29 (93.5%) achieved CR. The average time for achieving CR was 25.1 +/- 3.9 days. Hyperleukocytosis emerged in 66.5% and hepatic damages in 65.5% of the patients, they were ameliorated within one week after reduction of the As(2)O(3) dose or its suspension. The PML/RAR alpha fusion gene that was positive in all 29 patients before treatment turned negative only in 3 cases (10.3%) after obtaining CR (CR1) and in 10/13 cases (77%) after consolidation treatment. Up to now (1-8 months follow-up), all 29 patients remain in CR1.

CONCLUSIONATRA combined with As(2)O(3) in de novo APL treatment can yield a high CR rate without intolerable side effects. Long term effect needs further observation.

Adolescent ; Adult ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Arsenicals ; administration & dosage ; adverse effects ; Disease-Free Survival ; Female ; Follow-Up Studies ; Gene Expression ; Humans ; Leukemia, Promyelocytic, Acute ; drug therapy ; genetics ; Male ; Middle Aged ; Oncogene Proteins, Fusion ; genetics ; Oxides ; administration & dosage ; adverse effects ; Remission Induction ; Time Factors ; Treatment Outcome ; Tretinoin ; administration & dosage ; adverse effects

OBJECTIVETo investigate the potential effects of arsenic trioxide (As(2)O(3)) combined with 8-(4-chlorophenylthio) adenosine 3', 5'-cyclic monophosphate (8-CPT-cAMP) on the retinoic acid (RA)-resistant acute promyelocytic leukemia (APL) cells.

METHODSThe RA resistant APL cell lines NB4-R1 and NB4-R2 were used as in vitro models. The effect of As(2)O(3) and/or 8-CPT-cAMP was evaluated according to cellular morphology, cell surface antigen and nitroblue-tetrazolium (NBT) assay. Meanwhile, immunofluorescence analysis and Western blot assay were used to detect the degradation of PML-RAR alpha fusion protein and the change of several key cell cycle regulatory proteins in these cells before and after the treatment.

RESULTSLow dose of As(2)O(3) (0.25 micromol/L) synergized with 8-CPT-cAMP (200 micromol/L) in inducing differentiation of NB4-R1 and NB4-R2 cells, while neither of these two drugs alone could induce differentiation of these cells. In addition, 8-CPT-cAMP was able to inhibit the cell growth by modulating the expression of some important cell cycle regulators and to facilitate the As(2)O(3)-mediated degradation of PML-RAR alpha fusion protein.

CONCLUSIONSAs(2)O(3) combined with 8-CPT-cAMP could induce differentiation of RA-resistant APL cells.

Antineoplastic Agents ; pharmacology ; Arsenicals ; pharmacology ; Cell Differentiation ; drug effects ; Cell Line, Tumor ; Cyclic AMP ; analogs & derivatives ; pharmacology ; Dose-Response Relationship, Drug ; Drug Resistance, Neoplasm ; Drug Synergism ; Humans ; Leukemia, Promyelocytic, Acute ; pathology ; Oxides ; pharmacology ; Thionucleotides ; pharmacology ; Tretinoin ; pharmacology

OBJECTIVETo investigate the hypocholesterolemic activity of red yeast rice (RYR) and its underlying mechanism.

METHODSThree groups of hamsters were fed either the control diet or one of the two experimental diets containing by weight 0.1% RYR (0.1RYR) or 0.3% RYR (0.3RYR). Blood (0.5 mL) was collected from the retro-orbital sinus into a heparinized capillary tube at the end of week 0, 3, and 6. Plasma lipoproteins were measured using enzymatic kits, while fecal neutral and acidic sterols were quantified using a gas-liquid chromatography.

RESULTSPlasma total cholesterol was reduced by 12% in 0.1RYR group and by 18% in 0.3RYR group compared with the control value. Similarly, plasma triacylglycerol was decreased by 11% in 0.1RYR group and by 24% in 0.3RYR group. Western blotting analysis demonstrated that RYR had no effect on sterol regulatory element binding protein 2, liver X receptor, 3-hydroxy-3-methylglutary-CoA reductase, LDL receptor, and cholesterol-7alpha-hydroxylase. HPLC analysis confirmed that RYR contained 0.88% monacolin K. It was recently found that RYR supplementation increased excretion of fecal acidic sterols by 3-4 folds compared with the control value.

CONCLUSIONHypocholesterolemic activity of RYR is mediated at least partially by enhancement of acidic sterol excretion.

Animals ; Bile Acids and Salts ; secretion ; Biological Products ; pharmacology ; Blotting, Western ; Body Weight ; drug effects ; Cholesterol ; metabolism ; Cholesterol 7-alpha-Hydroxylase ; metabolism ; Cricetinae ; Dietary Supplements ; Feces ; chemistry ; Feeding Behavior ; drug effects ; Hydroxymethylglutaryl CoA Reductases ; metabolism ; Lipoproteins ; blood ; Liver ; enzymology ; Liver X Receptors ; Naphthalenes ; analysis ; Organ Size ; drug effects ; Orphan Nuclear Receptors ; metabolism ; Receptors, LDL ; metabolism ; Sterol Regulatory Element Binding Protein 2 ; metabolism ; Weight Gain ; drug effects

OBJECTIVETo establish a rapid, sensitive and specific real-time PCR method for detection of Human Herpesvirus-6 (HHV-6).

METHODSAccording to the reference, a pair of primers and a probe were designed located in U65-66 gene and to set up the standards. We established a real-time RT-PCR method for detection of HHV-6, and to verify the specificity, sensitivity, reproducibility.

RESULTSThe correlation coefficient was 0.999, E = 97.9%, the coefficient of variation values of Ct were 0.61% and 3.13% in real-time PCR assay for inter and intra assay, respectively. The results of all viruses were negative except of HHV-6 for the assay. The quantitative detection limit of the assay was 3 x 10(0) copies/microl.

CONCLUSIONThe real-time PCR assay is highly specific, sensitive and reproducible, which can be used to quatitative detecting clinical samples.

Herpesvirus 6, Human ; genetics ; isolation & purification ; Humans ; Real-Time Polymerase Chain Reaction ; methods ; Reproducibility of Results ; Reverse Transcriptase Polymerase Chain Reaction ; methods

In order to investigate the potential role of human ERMAP gene in erythropoiesis, the ERMAP-dsDNA was designed, ERMAP-shRNA expressing plasmids was constructed, and ERMAP-shRNA/K562 cell was established. Cell morphology, biphenylamine staining, expression of cell surface antigens as well as quantitative level of human ERMAP gene were observed during K562 cells differentiating toward erythroid lineage induced by Ara-C. The results showed that at 72 hours after Ara-C treatment, ERMAP-shRNA/K562 cell size became large with increasing cytoplasm content. The percentage of biphenylamine positive cells increased from 1.17% to 2.04% (p < 0.05), but still lower than that in group K562 + Ara-C. The percentage of CD36(-)/CD235a(+) increased from 8.83% to 11.28%, CD36(+)/CD235a(+) increased from 1.23% to 2.64%, and CD36(+)/CD235a(-) increased from 0.59% to 1.47% respectively, which were all lower than that in group K562 + Ara-C at either time point. At the same time, the level of ERMAP expression increased slowly from 2.52 x 10(-3) to 4.53 x 10(-3), which was also significantly lower than that of group K562 + Ara-C. It is concluded that the ERMAP-shRNA inhibits the Ara-C-induced erythroid differentiation of K562 cells, which further suggests that there is relationship between hERMAP and erythroid differentiation and development.
Blood Group Antigens ; genetics ; Butyrophilins ; Cell Differentiation ; drug effects ; Cytarabine ; pharmacology ; Erythropoiesis ; drug effects ; Humans ; K562 Cells ; RNA, Messenger ; RNA, Small Interfering ; pharmacology