As an inhibitory amino acid similar to gama-aminobutyric acid,taurine can activate the corticostriatal pathway as an endogenous ligand for glycine receptors,establishing equilibrium between the excitatory and inhibitory processes in the brain.In mammalian brains,taurine concentrations increase during the developmental period of the brain until weaning,and subsequently decline reaching stable concentrations in adulthood.With abilities of anti-oxidative stress,anti-inflammatory and anti-apoptosis,taurine can improve the hypoxic-ischemic brain injury,promote the proliferation and differentiation of neurons and affect brain development,It needs more investigations to prove when and how taurine supplementation during gestation,baby,children or adult can assist the development of the brain and prevent the damage of the brain from hypoxic and ischemic damage.

To understand the relationship of neurotransmitter between the striatum and limbic system such as amygdaloid nucle-us and bed nucleus of the stria terminalis. 30 male Sprague Dawley rats were used. Immunohistochemical ABC method was per-formed to detect the expression of substance P (SP), calcitonin gene-related peptide (CGRP), leucine-enkephalin (L-enk),cholecyctokinin (CCK) and neuronal nitric oxide synthase (NOS) on seetions of the brain. Some transmitters including substanceP, calcitonin gene-related peptide and cholecyctokinin were mainly distributed at the marginal division of the striatum. Theleucine-enkephalin was mainly distributed at the globus pallidus and was secondly distributed at the marginal division of the stria-tun. The neuronal nitric oxide synthase was mainly distributed at caudate putamen and the marginal division. All these transmit-ters were not only distributed at amygdaloid nucleus and bed nucleus of the stria terminalis, but also had fibers connection amongthe amygdaloid nucleus, marginal division and bed nucleus of the stria terminalis. CONCLUSION: There were special fibersconnection between the marginal division and other basal ganglia nucleus or the limbic system. The marginal division may beplayed some important functions of basal ganglia and limbic system.

Objective To observe the effect of anti-Helicobacter pylori (H.pylori) treatment on patients with idiopathic thrombocytopenic purpura (ITP) and its effect on blood platelet. Methods From April 2006 to April 2008, a total of 31 patients diagnosed as having ITP and H.pylori infection were collected. These patients were given standard antibiotic therapy for H.pylori eradication (omeprazole 20 mg, clarithromycin 0.5 g, and amoxicillin 1.0 g, twice per day for 1 week). The effect of anti-H.pylori treatment was analyzed, and the blood platelets were counted before the treatment and on day 7, 14, and 28 after the treatment. Results Of the 31 ITP patients with H.pylori infection, 21 were cured and 10 were not effective, with the effective rate 67.74 %. Blood platelet increased in the cured group but did not change in the no-effect group. Conclusion Anti-H.pylori treatment could increase the blood platelet, and H.pylori infection may be related to the reduction of blood platelet in ITP patients.

OBJECTIVE:To promote the working performace of automatic medicine packing machine in our hospital. METH-ODS:Combined with the problems we met in the use of the automatic medicine packing machine,the reconstructions of software functions,such as drug inventory management,drug identification,specific drug sub-package and document printing of non-pack-age drug,were introduced. Related indicators were compared before and after reconstruction. RESULTS:After the software recon-struction,compared with 2012,loss events of expire drug due to poor sales fell by 70% in 2013;drug dispensing errors related to medicine packing machine dropped by 1/2;the time of drug checking shortened by 1/5. CONCLUSIONS:The software program re-construction of automatic medicine packing machine can improve the work efficiency of pharmacy and the accuracy of drug dispens-ing,further guarantee the quality and safety of drugs,and meet the practical demand of our hospital.

Objective To examine whether the marginal division of the striatum(MrD)is involved in the associative learning and memory function of human brain with the help of functional magnetic resonance imaging(fMRI)technique.Methods Sixteen right-handed normal volunteers participated in a test of paired-word associative learning and memory,while the fMRI data were recorded.Control tasks were performed for the block-design.Statistcs parameter mapping 99 was used to analyze the data and to obtain the activated brain regions.Results When the threshold was set as P＜0.005.using a one-sample T-test,the left occipital lobe and the superior and middle gyrus of the left frontal lobe were activated remarkably during the encoding process of the paired-word associative learning and memory task,with the maximum intensity T value being 13.87 and 9.36.respectively.The left MrD was also obviously activated during this stage(T value was 5.46).But during the retrieval process,the left parietal lobe was prominently activated(T value was 8.73).Conclusion The resuhs of this study reveal that the subcortical structures such as MrD as well as the cerebral cortex are involved in the associative learning and memory of paired-word in human brain.

Objective To investigate the neural representations of long-term digital memory in human brain by functional magnetic resonance imaging (fMRI) technique. Methods 22 right-handed normal volunteers were recruited to participate in a test of long-term digital memory while the fMRI data were recorded. Control tasks were performed for the block-design. SPM 99 was used to analyze the data and to obtain the activated brain regions.Numbers of activated voxels were used to calculate lateralization index (LI). Results When the threshold was set as P＜0. 0001 ,using a one-sample t -test,the middle gyrus of the left frontal lobe(t=9.68) and the right cerebellum ( t = 9.85 ) were activated remarkably during the memory task. The subcortical structures including the thalamus (t=6.72) and the caudate (t=6.58) were also obviously activated during the memory task. LI of the numbers of activated voxels was 0.51. Conclusions The subcortical structures and the cerebellum as well as the cerebral cortex are collaborative to contribute to long-term digital memory function in human brain. The results also reveal that the functional areas of long-term digital memory in human brain are localized with the functional lateralization in the left hemisphere.

Objective Marginal division (MrD) of striatum is a universal structure in the mammalian brain,and it plays an critical role in learning and memory.In the present study,we try to investigate the synaptic ultrastructure of Methionine enkephalin (MET-ENK) immunoreacted fibers connected with neurons in the marginal division of the striatum in the monkey brains to explore the ultrastructural basis of the mechanism of learning and memory function in MrD.Methods Six male monkeys (macaque) were perfused with paraformaldehyde through heart to fix the brain and the brains were sectioned by a cryostat.Sections of the brains were performed immunohistochemical staining to detect the MET-ENK expression in the stfiatum; the areas with positive immumohistochemical staining was performed ultrastructural observation for morphological characteristics of the MET-ENK synapses in the MrD.Results Immunohistochemistry staining showed a dense arrangement of MET-ENK immunoreactive cells between the putamen and globus pallidus.Five major types of MET-ENK synapses were identified in the MrD:the axo-dendritic synapses,the axo-spinous synapses,the axo-somatic synapses,the axo-axonic synapses and the compound synapses.Conclusion The MET-ENK synapses in the MrD are diverse and complex,and can be distinguished from the rest of the striatum.

OBJECTIVETo analyze the relationship between metabolites of polycyclic aromatic hydrocarbons (PAHs) and serum uric acid levels in coke oven workers and to provide new clues to the pathogenic mechanism of PAHs.

METHODSA total of 1302 coke oven workers were divided into four groups, namely control group and low-, intermediate-, and high-dose exposure groups. The concentrations of ambient PAHs at each workplace were determined by high-performance liquid chromatography. The detailed information on the occupational history and health of workers was collected by questionnaire survey and physical examination, and so were their blood and urine samples. Serum uric acid and creatinine levels were measured using a Hitachi 7020 automatic biochemical analyzer. Ten urinary PAH metabolites were detected by gas chromatography-mass spectrometry.

RESULTSSerum uric acid levels were the highest in the high-dose exposure group, followed by the intermediate- and low-dose exposure groups, and were the lowest in the control group. There were significant correlations between serum uric acid levels and the quartiles of 1-hydroxynaphthalene and 1-hydroxyphenanthrene (P < 0.05). After adjustment for PAH metabolite-related relationship, only urinary 1-hydroxyphenanthrene was significantly correlated with serum uric acid levels (P = 0.001). After adjustment for confounding factors and using the 1st quartile of 1-hydroxyphenanthrene as a reference, the odds ratio for hyperuricemia in subjects with the 2nd, 3rd, and 4th quartiles of 1-hydroxyphenanthrene were 1.55, 1.57, and 2.35, respectively.

CONCLUSIONUrinary 1-hydroxyphenanthrene is associated with a dose-response increase in serum uric acid levels in coke oven workers, and exposure to phenanthrene in PAHs may be a risk factor for hyperuricemia.

【Objective】 To explore the changes of blood routine, biochemical indexes and coagulation indexes of voluntary blood donors after COVID-19 vaccination, so as to provide a scientific basis for blood donation strategy and to ensure blood safety. 【Methods】 From March to August 2021, 55 blood donors who had received COVID-19 vaccination were sampled at the 2^nd, 4^th and 8^th weeks after vaccination for blood routine, biochemical and coagulation indexes testing. The changes were analyzed. 【Results】 At the second week after vaccination, abnormal blood routine indicators occurred 16(5.82%) occasions, abnormal biochemical indicators 159(36.14%) occasions; at the 4^th week after vaccination, abnormal blood routine indicators 14(5.10%) occasions and abnormal biochemical indexes 151(34.32%) occasions. There was no difference in blood routine and biochemical indexes before and after vaccination(P>0.05). Among the coagulation indexes, the incidence of abnormal increase of FⅧ activity at the 2^nd, 4^th and 8^th weeks after vaccination were 34.5%(19/55), 40%(22/55) and 50.9%(28/55), respectively. The the incidence of abnormal increase of TT were 3.6%(2/55), 7.2%(4/55) and 21.8%(12/55), respectively. Both TT and FⅧ activity had a tendency of increasing(P<0.05), APTT had an decreasing trend(P<0.05), and FIB content took on dynamical changes(P<0.05). 【Conclusion】 The blood indicators of blood donors after receiving COVID-19 vaccination are almost within the normal reference values. They can donate regularly according to the required interval, which may help to improve the potential transient changes of coagulation function.

【Objective】 To analyze the changes in antibody titer of voluntary blood donors after receiving the COVID-19 vaccine, so as to provide reference for blood donation strategy, follow-up vaccine development and COVID-19 prevention and treatment for healthy people. 【Methods】 1) The serum from voluntary blood donors 2, 4, 8, 12, 16 and 20 weeks after inoculation with two-shot vaccines (inactivated vaccine or recombinant protein vaccine) was collected, and SARS-CoV-2 total antibody (IgG+ IgM+ IgA) detection (colloidal gold method) and neutralizing antibody detection (UPT immunoluminescence method) were conducted. 2) The obtained data were grouped according to collection time, age and gender, and differences between groups were analyzed by t test and ANOVA using SPSS 2.0 statistical software to clarify the trend of total antibodies and neutralizing antibodies. 【Results】 Neutralizing antibodies and total antibodies (IgG+ IgM+ IgA) from voluntary blood donors vaccinated inactivated vaccine or recombinant vaccine had the same trend of change, both reached their peak at the 2nd and 4th week, respectively, after inoculation, and then decreased gradually. The antibody produced by the recombinant protein vaccine had a higher titer than that from inactivated vaccine, and had slower decline and more lasting protection. The neutralizing antibody and total antibody (IgG+ IgM+ IgA) from different genders and ages were not statistically different. 【Conclusion】 Neutralizing antibodies reached its peak in the second week after vaccination, and total antibody titer reached its peak in the fourth week; both were independent of age and gender. After receiving the vaccine, voluntary blood donors should follow the latest instructions on blood donation intervals issued by the government.