The projection of the optic nerve to the visual centers of the frog was studied by means of autoradiographic and terminal degenerating method. The results obtained from the two methods were essentially identical in the distribution of the optic term inals in the lateral geniculate body and the pretectum neuropile contralateral to the [~3H]-leucine injected or enucleated eye. There are also some differences:1. In autoradiographic cross sections at certain level of diencephalon, the Bellonci nucleus contralateral to injected eye has a circular outline. It is filled with the optic terminals. Within the Bellonci nucleus and the lateral geniculate body ipsilateral to the injected eye, the distribution of the optic terminals is clear. The Bellonci nucleus contralateral to enucleated eye, revealed by degenerating technique, has a circular outline too, but the optic terminals mainly concentrate on the peripheral of the nucleus. In the central area of the nucleus there are only few degenerating optic terminals. And the Bellonci nucleus and the lateral geniculate body ipsilateral to enucleated eye have only few degenerating optic terminals. The outlines of the two nuclei can hardly be recognized.2. The optic terminals of the superficial layers of the tectum contralateral to injected eye appear to have random distribution revealed by autoradiographic method, while in the sections of the preparation with degenerating method, the optic terminals have a laminar distribution which is very similar to that obtained with modified Cajal's method.3. The appearance of the midbrain tegmental nucleus revealed by autoradiographic method was much clearer than that revealed by degenerating methodIn addition, it has been observed that the number and distribution of degenerating terminals varied with the animal's survival time after the operation.The causes which bring about the differences, the advantages and disadvantages of the two techniques were discussed.

Parts of the left tecta of the frogs were removed in one group. In another group, the left optic nerves of the frogs were cut through the mouth. The first group of animals survived for 12～26days and the second group 11～22 days. Both right and left retinas (with a small piece of optic nerve attached) were sectioned radially at 25?m on a freezing microtome and stained by Ebbesson-Heimer's method which allow degenerating fibers and terminals stained specially. We did not find any evidences showing degeneration. We concluded that centrifugal fibers coming from the centers to the retinas were absent in the frog.

Objective To establish the quality standard of Fengshi Bitong Capsule.Methods Notopterygh Rhizoma,Angelicae Pubescentis,and Saposhnikoviae Radix were identified by thin layer chromatography(TLC).Aconitine limit test in this drug also carried out by TLC.The contents of Isoimperatorin in the Notopterygh Rhizoma were determined by high performance liquid chromatography(HPLC).Results The spots in the TLC were fairly clear and no interference was shown in the blank samples.The aconitine limited in conformity with the 《Chinese Pharmacopoeia》 2010.Isoimperatorin showed a good linear relationship within a range of 3.668 96-183.448 00 μg· mL-1(r=1).The average of recovery was 96.42%,RSD=2.64%,respectively.Conclusion The established methods are highly specific,stable and reproducible,which can be used as quality control of fengshi bitong capsule.

Tanshinones and phenolic acids are two major classes of effective compounds in S.miltiorrhizae Radix et Rhizoma.Accumulative levels of these compounds directly determined its quality and efficacy.Presently,for the purpose of understanding the underlying the mechanism behind the biosynthesis and regulation of effective compounds in S.miltiorrhiza,a series of progresses have been pressed ahead.Benefiting from the boost and convenience of high-throughput genomic,transcriptomic,and metabolic analysis methods,remarkable achievements have been accessed in this field.In this paper,a summary for the recent progress have been made with the provision of a reference for better understanding over the quality of S.miltiorrhiza.

HRP solution (33%) was injected into the left superior colliculus of 21 adult albino rats. 1-2 days after injection, the animal was sacrificed. Brains were frozen sectioned and processed according to. DAB- or TMB-method. The labeled neurones were examined in the right superior colliculus and other areas of the brain. The resu ts are as follows:1. No matter where the HRP was injected (either in the rostral or caudal part of the superior colliculus or thepart between them) HRP labeled neurones were always observed on the opposite superior colliculus if the injection sites reached layers deeper than the stratum oPticum. The locations of the labeled neurones corresponded roughly to the sites of HRP injections. However, no HRP labeled neurones were observed when the core of HRP deposites was restricted to layers superficial to the stratum griseum intermediale.2. Of all labeled neurones, 53.6% were located in the stratum griseum intermediale, 16.5% in the stratum opticum. The rest were in deeper layers. In no case were HRP labeled neurones observed in the stratum zonale or stratum griseum superficiale.3. Labeled neurones could be classified morphologically into vertical fusiform, horizontal fusiform and multipolar neurones.4. In addition to the visual cortex, labeled neurones were also found in the inferior colliculi, paralemniscal nuclei, dorsal nuclei of the lateral lemniscus, substantia nigrae and lateral tegmental nuclei bilaterally. Labeled neurones were also found in the ipsilateral ventral nucleus of the lateral geniculate body, contralatera pretectal area and reticular formation.

Objective To describe the epidemiology and clinical characteristics of spinal infections to assist the clinical diagnosis and treatment .Methods Clinical data of all cases with spinal infections at He′nan Provincial People′s Hospital from January 2010 to December 2014 were analyzed retrospectively . The demographic characteristics , risk factors , clinical characteristics and outcomes were evaluated . Variables were compared by t‐test ,chi‐square test or Fisher exact test when appropriate .Results Totally 231 patients fulfilled the inclusion criteria and were reviewed ,of which 179 (77 .5% ) were pyogenic spinal infection (PSI) and 52 (22 .5% ) were tuberculous spinal infection (TSI) .The most common risk factor for infection was history of previous spinal surgery or procedure (43 .3% ) ,followed by diabetes mellitus (14 .7% ) .The infection site of lumbosacral spine was prominent with 114 cases (63 .7% ) in PSI and 38 cases (73 .1% ) in TSI .At initial presentation ,white cell blood count ([10 .8 ± 4 .5] × 109/L vs [7 .3 ± 3 .2]× 109/L ,t=2 .685) and C‐reactive protein levels ([79 ± 33] vs [37 ± 21] mg/L ,t=6 .241) in PSI were higher compared to TSI (both P<0 .05) .The positive rate of blood culture was significant higher than tissue culture in PSI (47 .9% vs 21 .8% ,χ2 = 6 .782 , P< 0 .05 ) .But the positive rate of blood culture was significantly lower than tissue culture in TSI (0 vs 39 .4% ,χ2 =8 .312 , P<0 .05) .Surgical treatment was performed in 30 .2% of PSI and 25 .0% of TSI .Conclusions History of spinal surgery or procedure is the most common risk factor for spinal infections , followed by diabetes mellitus . The lumbosacral spine is the common involved site in both PSI and TSI .The incidence of PSI is higher among spinal infections in our hospital .And Staphylococcus aureus is the most common pathogenic bacteria in PSI .

In order to investigate the distribution and other features of callosal neurons inthe visual areas,12 adult albino rats were used in a series of experiments,in whichHRP(30～50%,DAB brown reaction)was injected into one hemisphere and theretrograde labelled cells were observed in the other hemisphere.1.Hardly any labelled neuron was found in contralateral visual cortices whenthe injections were made at sites within 3.6 mm from the midline of the brain.However,when the injections were made at sites 4～6 mm from the midline,manylabelled neurons could be observed.2.Generally,most labelled cells aggregated near the border between area 17 and18a.In area 18a numerous cells were labelled,which distributed in the form ofincontinuous patches.In the proper of area 17,however,less labelled cells werefound.3.A gross topographical correlation was observed between locations of injectionand labelling on the two hemispheres.4.The labelled cells were found in all cortical layers except layer Ⅰ.In area 17they were mainly in layers Ⅳ and Ⅴ,while in area 18 a they were found mainly inlayers Ⅲ,Ⅳ and Ⅴ.5.Some callosal neurons were lightly labelled.For these cells,only the outlinesof the cell body could be seen even under dark-field microscope.The diameters ofthese cells were about 8～10?m.A few cells were as large as 16?m in diameter.Other labelled neurons could be seen with both dark-field and bright-field illumina-tions.They were identified as pyramidal,multipolar bipolar and granular cells accordingto the shape of the cell bodies and the pattern of dendrites.The majority of labelledcells were pyramidal cells,with a long apical dendrite to the pia surface,10～20?min diameter.Other ceils were 10～20?m for multipolar cells,and less than 10?m forgranular cells.Comparisons were made between the above results and the physiological studies.

Objective To summarize the causes of patients with fever of unknown origin (FUO) and to analyze the relationship between infectious diseases and FUO,in order to provide envidence for experiential therapy.Methods Clinical data of 374 FUO inpatients at He'nan Provincial People's Hospital from June 1,2009 to May 31,2013,including gender,age,diagnosis and department were analyzed retrospectively.Results Three hundred and twenty-seven cases among the overall 374 FUO patients (87.4％) were eventually etiological diagnosed based on supplementary examinations or diagnostic treatment.As for the causes of fever,209 were infection,accounting for 55.9％,among which 78 cases (20.9％) were diagnosed with tuberculosis,23 cases (6.1％) brucellic diseases,19 cases (5.1％) rickettsia infection.Meanwhile,the noninfectious diseases,such as connective tissue diseases (47,12.6％),hematonosis (37,9.9％) as well as the solid tumors (13,3.5％) also constituted considerable shares of the causes for FUO.However,the causes of 47 cases (12.6％) were not identified before discharge.Conclusions Infectious diseases are the main cause of FUO,in which tuberculosis accounts for the majority.Brucellosis and rickettsia infection also account for a considerable proportion.The causes of most FUO cases could be identified through detailed analysis of clinical data and supplemental examinations.

Objective To investigate the effect of edaravone pretreatment on myocardial injury induced by carbon dioxide pneumoperitoneum in patients undergoing laparoscopic gynecologic surgery.Methods Thirty patients undergoing laparoscopic gynecologic surgery,ASA Ⅰ or Ⅱ grade,were divided into two groups by random digits table with 15 cases each:control group and edaravone group.Edaravone group following tracheal intubation received vein infusion of edaravone 0.5 mg/kg,control group received equal volume of 0.9％ sodium chloride.The carbon dioxide pneumoperitoneum pressure was maintained at 10-15 mm Hg (1 mm Hg =0.133 kPa).Venous blood samples were collected before anesthesia induction and after operation 8 h for the measurement of the serum creatine kinase (CK),creatine kinase-MB (CK-MB),aspartate aminotransferase (AST) and lactate dehydrogenase (LDH).Results The serum levels of CK and AST were significantly higher after operation 8 h in control group than those of before anesthesia induction in control group and after operation 8 h in edaravone group [(205 ± 27) U/L vs.(123 ± 25) and (123 ± 29)U/L,(48±5) U/L vs.(34 ±3) and (36 ±5) U/L,P＜0.05].There was no significant difference in the serum levels of CK-MB and LDH between two groups and the group (P ＞ 0.05).Conclusion Pretreatment with edaravone 0.5 mg/kg can protect myocardium in patients undergoing laparoscopic gynecologic surgery.

Objective To compare the pathological and serological difference of rheumatoid arthritis (RA) models in severe combined immunodeficiency (SCID) mice transplanted with synovial tissues from patients with rheumatoid arthritis (SCID-HuRAg mice) established either by renal capsule or subcutaneous back heterotopic transplantation. Methods RA synovium and normal human cartilage were co-implanted subcutaneously into the backs or under the renal capsule of 15 SCID mice. Engrafted tissues and serum were taken at the 4th and 8th week after transplantation. Histopathology and ELISA were performed to compare their histological and serological differences with RA. Results The morbidity and taken rate were significantly increased in the subcutaneous back of the mice group than the renal capsule group. The degree of cartilage erosion as well as the titers of serum IgM type rheumatoid factor suggested no significant difference between the two groups of SCID-HuRAg model devel oped by different engraft methods. Conclusion Back subcutaneous transplantation SCID-HuRAg model can be an ideal and stable animal model for studies on the pathogenesis and biotherapy of RA.