Influencing Factors and Prevation of Infection in Leukemia Patients after Allogeneic Peripheral Blood Stem Cell Transplantation / 中国实验血液学杂志

OBJECTIVE@#To explore the influencing factors and countermeasures of infection in leukemia patients after allogeneic peripheral blood hematopoietic stem cell transplantation.@*METHODS@#A total of 126 patients with leukemia admitted in our hospital from August 2016 to March 2018 were selected. The number of infected patients after transplantation was recorded, and the causes of infection were analyzed.@*RESULTS@#Among the 126 patients, 43 were positive for infection, and the infection rate was 34.13%. A total of 89 pathogens were detected, of which bacteria accounted for 64.05%; virus accounted for 22.47%, and fungi accounted for 13.48%. The patient's age, donor type, pre-transplant infection, prophylactic use of antibiotics and aGVHD all were factors influencing the patient's infection (P＜0.05). The follow-up results showed that the incidence of infection in the intervention group significantly decreased after intervention with prevention program (P＜0.05). After reasonable nursing intervention, the incidence of infection in the intervention group after follow-up for 12 months was lower than that in the control group (P＜0.05).@*CONCLUSION@#Pre-transplant infection and prophylactic use of antibiotics are factors influencing the infection after allogeneic hematopoietic stem cell transplantation. The incidence of infection can be reduced by reasonable infection prevention.

Effect and Mechanism of Modified Banxia Xiexintang on Depression During Perimenopause / 中国实验方剂学杂志

Objective::To observe the effect of modified Banxia Xiexintang on depression during perimenopause, in order to study itseffecton 5-hydroxytryptamine (5-HT) and proinflammatory factors. Method::One hundred and thirty-nine patients were randomly divided into control group (69 cases) and observation group (70 cases) by random number table.Patients in control group got tibolone tablets, 2.5 mg/time, 1 time/day, and paroxetine hydrochloride tablets, 20 mg/time, 1 time/day.In addition to the therapy in control group, patients in observation group were added with modified Banxia Xiexintang, 1 dose/day.The course of treatment was 8 weeks.And before and after treatment, Hamilton depression scale for-17 items (HAMD-17), Zung's self-rating depression scale (SDS), hamilton anxiety scale (HAMA), improvement Kupperman(KI), liver depression and spleen deficiency syndrome, menopause-specific quality of life questionnaire (MENQOL) and treatment emergent symptom scale (TESS) were scored, and levels of 5-HT, rain-derived neurotrophic factor (BDNF), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) were detected. Result::After treatment, scores of HAMD-17 and SDS in observation group were lower than those in control group (P<0.01). And the effect on trea depression in observation group was better than that in control group (Z=2.074, P<0.05). The degree of depression in observation group was ligher than that in control group (Z=2.157, P<0.05). And scores of HAMA, KI and liver depression and spleen deficiency syndrome were lower than those in control group (P<0.01). The severity of perimenopausal syndrome was ligher than that in control group (Z=2.046, P<0.05). And scores of vasomotor symptoms and psychological symptoms of MENQOL scale and the total scores were lower than those in control group (P<0.05). Levels of 5-HT and BDNF were higher than those in control group (P<0.01), while levels of IL-1β, TNF-α and TESS were lower than those in control group (P<0.01). Conclusion::In addition to theroutine western medicine, modified Banxia Xiexintang can alleviate the severity of depression, release the symptoms of depression, anxiety and perimenopausal syudrome(PMS), improve the quality of life, inhibit pro-inflammatory factors, and enhance the expressions of 5-HT and BDNF, with no adverse event.

Determination of ginkgolic acids in Yinxing Tongzhi Dropping Pills by mix-mode SPE-UHPLC/MS/MS / 药学学报

An analytical method was developed for determination of ginkgolic acids in Yinxing Tongzhi Dropping Pills by ultra high performance liquid chromatography-triple quadrupole mass spectrometry. The samples were purified by mix-mode anion exchange and reversed-phase SPE. A chromatographic column, Waters Cortecs T3 (50 mm×2.1 mm, 2.7 μm), was used with acetonitrile-methanol-1% acetic acid (44:44:12) as the mobile phase. The ginkgolic acids were detected by electrospray ionization mass spectrometry in negative mode with multiple reaction monitoring (MRM) mode. Ginkgolic acid C13:0, C15:1 and C17:1 possessed good linear correlation in the mass concentration range from 0.2 to 200 μg·L-1, 2 to 200 μg·L-1, 4 to 200 μg·L-1, respectively, with the correlation coefficients more than 0.999. The mean recoveries at spiked levels of 50, 250 and 600 μg·kg-1 were in the range of 70.8%-95.1%, and the RSDs were 0.7%-8.6%. The limits of quantification were 1, 10, 20 μg·kg-1, respectively. The method could be applied to the analysis of ginkgolic acids in complex matrix samples.

Effects of Acupuncture at "Sanyinjiao" (SP6) and "Baihui" (GV20) on Behaviors and Monoamine Neurotransmitter in Prefrontal Cortex of Attention Deficit Hyperactivity Disorder Rats / 中国中医药信息杂志

Objective To observe the effects of acupuncture at "Sanyinjiao" (SP6) and "Baihui" (GV20) on behaviors and contents of monoamine neurotransmitter dopamine (DA), noradrenalin (NE) and 5-hydroxytrypamine (5-HT) in prefrontal cortex (PFC) of attention deficit hyperactivity disorder (ADHD) rats; To discuss mechanism of action of acupuncture for prevention and treatment of ADHD. Methods 4-week-old SHR rats were randomly divided into the model group, Western medicine group and acupuncture group, and WKY rats with the same age were selected as the normal control group, with 10 rats in each group. Acupuncture was applied to "Sanyinjiao" (SP6) and "Baihui" (GV20) of rats in acupuncture group for 15 min. The rats in Western medicine group was given MPH (ritalin) for gavage, and rats were treated for 4 weeks in the dark-phase. Open field test (OFT), elevated plus maze (EPM) and novel object recognition test (NORT) were conducted to evaluate the spontaneous activity, impulsivity and learning-memorial ability of rats individually at the end of treatment. Contents of DA, NE and 5-HT in PFC were detected by HPLC. Results Compared with the normal control group, all of the behavior parameters of rats in model group were significantly higher (P＜0.05), and the contents of DA, NE and 5-HT in PFC of model group were lower than those of normal control group (P＜0.05). Compared with the model group, acupuncture group showed shorter movement distance, less rearing and fewer grooming activities in the OFT; percentages of times of entering the open arms and staying duration were reduced in the total period in the EPM; preference index in the NORT was elevated (P＜0.05); the contents of NE and 5-HT in PFC of acupuncture group increased significantly (P＜0.05). Conclusion Acupuncture at "Sanyinjiao" (SP6) and "Baihui" (GV20) canreduce the spontaneous activity and impulsivity, and improve learning and memory ability of ADHD model rats, which may be related to elevated contents of NE and 5-HT in the PFC.

Prediction of drug-target interaction based on fingerprint similarity / 中国中药杂志

Drugs play the pharmacological effects by combining with target proteins. Identification of drug-target interactions is important for discovering new functions of drugs. In this paper, the target fingerprints based on molecular substructure and the drug-target similarity based on fingerprints are proposed to a random forest-based classification method, in order to identify the drug-target interactions. Experiments on enzymes, ion channels, G protein-coupled receptors and nuclear receptors proved the effectiveness of the proposed method. In addition, the proposed method is applied to predict the interactions between ingredients and targets of traditional Chinese medicines.

Investigation and OCRL mutation analysis of a family with oculocerebrorenal syndrome of Lowe / 中国当代儿科杂志

Oculocerebrorenal syndrome of Lowe (OCRL) is an X-linked recessive disorder. This study investigated the history of a Chinese family with OCRL and used direct DNA sequencing to screen all exons of OCRL gene for mutations. A missense mutation (1736 A→G) in exon 15 was revealed, which resulted in the change of His (H) 507 to Arg (R). The patient's mother was the carrier of the heterozygous mutation in X-chromosome. To our knowledge, H507R mutation in OCRL gene has not been reported in Chinese people.

Testing immunogenicity of recombinant antibody by surface plasmon resonance / 药学学报

With the development of bio-technological drugs, drug immunogenicity evaluation has become key factor of clarifying safety and efficacy of these drugs. It has become the focus to establish a stable and reliable evaluation system. Due to the advantages such as continuous real-time monitoring, surface plasmon resonance (SPR) technology has been widely used in bio-technological drugs immunogenicity assessments. Our study applied this technology to detect anti-drug antibody (ADA) of a recombinant human anti-rabies monoclonal antibody NM57 in the sera of 48 volunteers admitted in phase I clinical trials. This method could satisfy the basic requirements of detection of ADA.

Effect of ascorbic acid combined with arsenic trioxide on apoptosis and differentiation in myelocytic leukemia cell lines / 中国地方病学杂志

Objective To investigate the effects of arsenic trioxide(As2O3)combined with ascorbic acid(AA) on the apoptosis and differentiation of myelocytic leukaemia cells.Methods The acute promyelecytic leukaemia cell lines (NB4 and MR2)and erythroleukemia cell line(KS62)were cultured in vitro.Grouping wasbased on different concentration of As2O3(0,0.1,0.2,0.5,1.0 μmol/L),which WaS used a8 control groups.Then,AA(113.0μmol/)was added into each group.Cell morphologic changes of cell lines NB4,MR2 and K562 were observed under light microscope;The apoptosis symbols [Annexin V(+)/PI(-),Annexin V(+)/PI(+)]and differentiation symbols(CD11b and CD33)were detected by flow cytometry 96 hours later.Results

In vitro stimulation of retinoic acid syndrome by rotary cell culture system and its relationship with expression of CXCR4 and SDF-1 alpha / 中华血液学杂志

<p><b>OBJECTIVE</b>To explore the molecular mechanism and prevention of retinoic acid syndrome (RAS).</p><p><b>METHODS</b>SDF-1 alpha mRNA from healthy adult lung tissue was measured by RT-PCR, CXCR4 protein expression on the cell membrane of APL cells induced by ATRA (APL-ATRA) was tested by FCM, and the rotary cell culture system (RCCS) was used to build a modal for in vitro stimulation of APL-ATRA infiltrating human lung tissue. The ability of APL-ATRA in adhesion, migration and infiltration was observed by interference from DEX, Ara-C and DNR.</p><p><b>RESULTS</b>The APL-ATRA cells could evidently infiltrate into normal lung tissue. Mean fluorescence intensity (MFI) of CXCR4 on the cell membrane of APL-ATRA cells was 30.6 +/- 1.8, which was much higher than that on unspecialized APL cells (9.8 +/- 4.2). SDF-1 alpha mRNA expression was detected positive in all 6 lung tissue. Contrary to the control groups, DEX could dramatically restrain the ability of APL-ATRA cells in adhesion and migration [(27.2 +/- 2.6)% vs. (46.0 +/- 3.0)%, (28.1 +/- 4.0)% vs. (48.2 +/- 3.0)%], while Ara-C and DNR could distinctly depress the ability in adhesion, migration and infiltration [(28.1 +/- 3.0)%, (30.2 +/- 3.2)% vs. (46.0 +/- 3.0)%; (29.0 +/- 4.0)%, (23.0 +/- 5.2)% vs. (48.2 +/- 3.0)%; (16.8 +/- 7.6)%, (17.1 +/- 6.0)% vs. (43.6 +/- 5.0)%].</p><p><b>CONCLUSION</b>In vitro APL-ATRA cells can infiltrate into the human lung tissue. High expression of CXCR4 on APL-ATRA and SDF-1 alpha in the lung tissue may be one of the molecular mechanisms of the lung infiltration and RAS. DEX, Ara-C and DNR can dramatically restrain the ability of APL-ATRA cells in adhesion, migration and infiltration.</p>

Clone and Expression of Loop1 and Loop2 Gene of Hexonof Infectious Canine Hepatitis Virus / 中国生物工程杂志

The mainly antigenic sites for the adenovirus neutraliation are present on Loop1 and Loop2 of hexon.Majority research were focus in the human adenovirus.Little was known on infectious canine hepatitis virus (ICHV), which was also called canine adenovirus typeⅠ.Here,ICHV (the isolated strain) DNA was isolated and purified from the cultured MDCK cells.The Loop1 and Loop2 fragments were amplified by polymerase chain reaction(PCR) method,and then was connected by ligase T4.The target fragment was then connected with vector pET28a.The nucleotide sequence ecoding Loop1 and Loop2 was determined.The nucleotide sequence identity of Loop1 region between the isolated strain and CLL, RI261 and Toronto A26/61 strains is 100%, 100% and 83.8%, and the nucleotide sequence identity of Loop2 region between the isolated strain and CLL, RI261 and Toronto A26/61 strains is 88.1% , 88.1% and 99.3%, and amino acid identity is 93.6%, 93.6% and 98.6%.The recombinant Loop protein was expressed in E.coli and was approximately 36kDa in size,and then was purified. Then BALB/c mice were injected subcutaneously in the back and armpit with the recombinant Loop protein.The anti-ICHV antibody titers of immunized serum was tested by indirect ELISA and the titers were up to 1:320.Western blot demonstrated that immunized sera could specifically combine with ICHV. The research laid a foundation for creating new genetic engineering products of infectious canine hepatitis virus.

Determination of finasteride in human plasma by HPLC-MS / 药学学报

<p><b>AIM</b>To develop an HPLC-MS assay for determination of finasteride in human plasma and to investigate the bioequivalence in healthy volunteers.</p><p><b>METHODS</b>After alkalization with sodium hydroxide, plasma was extracted with ethyl acetate and separated using a C18 column with a mobile phase of methanol-water (85:15). LC-ESI-MS was performed in the selected ion monitoring (SIM) mode using target ions at m/z 395 for finasteride and m/z 407 for the IS. The fragmentor voltage was 120 V. A randomized crossover design was performed in 20 healthy volunteers. In the two study periods, a single 10 mg dose of each tablet was administered to each volunteer.</p><p><b>RESULTS</b>Calibration curves were linear over the range 1-200 micrograms.L-1 (r = 0.9986). The limit of determination for finasteride in plasma was 0.05 microgram.L-1. The recovery of finasteride from plasma was in the range of 85.9%-98.7%. The results of variance analysis and two one-side t-test showed that there was no significant difference between the two formulations in the AUC and Cmax.</p><p><b>CONCLUSION</b>The assay was proved to be sensitive, accurate and convenient. The two formulations were bioequivalent.</p>

Interrelationship between radiologic findings and prognosis of epilepsy in children with neurocysticercosis

INTRODUCTION: Epileptic manifestations of Neurocysticercosis (NC) appear to depend on number and localization of the cysts. The objective of this study was to investigate the relationship between CT findings, number of parasites and the evolutive stage of the cysts, and the prognosis of epilepsy in children with NC. METHOD: We studied 28 patients with the parenchymal form of NC, considering: epilepsy duration; seizure frequency before and after AED treatment; seizure control; number of AED and recurrence after AED withdrawal. Clinical information was crossed with the number of lesions and disease activity in univariate comparison. RESULTS: The analysis of the clinical data in relation to the number of lesions and disease activity showed no statistical difference among the variables (p>0.05). CONCLUSION: We conclude that the course of epilepsy due to NC in childhood cannot be based exclusively on the number or stage of the parasites