BACKGROUND:There are neuronal precursors in subventricular zone (SVZ) of adult rat. The precursors migrate to olfactory bulb along the rostral migratory stream (RMS) and differentiate into local interneurons of olfactory bulb. But whether cutting the RMS would affect the migration of subventricular precursors is unknown.OBJECTIVE: To investigate the effects of cutting the olfactory peduncle on migration of subventricular zone cells in adult rat.DESIGN: Randomized controlled experiment.SETTING: College of Life Sciences, Univesity of Science and Technology of China; Staff Room of Anatomy, Xuzhou Medical College MATERIALS: The experiment was conducted in the Animal Experimental Center , Xuzhou Medical College from September 1997 to January 1999.Totally 25 male adult SD rats were recruited and randomly divided into olfactory peduncle-cutting 30 days group (n=10) and olfactory peduncle-cutting 60 days group(n=15, in which 5 rats were used for immonohisto chemistry).METHODS: 30 days and 60 days after being cutting olfactory peduncle,the rats were put to death by perfusion for fixation. Consecutive paraffin sections of brain were made. Cellular density and cross section area of RMS were measured. Quantitative analysis of cells in the RMS was performed with immunohistochemical method.MAIN OUTCOME MEASURES: The cellular density and cross section area of RMS, the expression of polysialylated neuronal cell adhesion molecule (PSA-NCAM)RESULTS: Totally 25 SD rats were recruited. Died for operation and been failure for cutting the olfactory peduncle, so altogether 13 rats used for analysis, 5 rats in 30days group and 8 rats in 60 days group (among that, 3 used for immunohistochemistry). ① Morphologyand quantitative change of RMS after cutting olfactory peduncle: The Nissl stained RMS cells were distinguished from adjacent tissue by the characterization of darken stained and dense distribution. There is little condensed nuclear or fragment nuclear. Cellular density at the operation side in the olfactory peduncle -cutting 30 days group and olfactory peduncle -cutting 60 days group was higher than that in the control side (P ＜ 0.01). Relative cellular density of RMS at surgical plane of operation side in the olfactory peduncle -cutting 60 days group was higher than that in the olfactory peduncle -cutting 30 days group(P ＜ 0.01 ). The cross section area of operation side in the two groups was both larger than that of the control side (P ＜ 0.01). There was no difference of cross section area between olfactory peduncle -cutting 60 days group and olfactory peduncle -cutting 30days group (P ＞ 0.05). ②Immunohistochemical reaction of RMS after cutting alfactory peduncle operation: 60 days after cutting olfactory peduncle, the accumulated cells in RMS were positive to polysialylated neuronal cell adhesion molecule.CONCLUSION: Cutting the olfactory peduncle results in the accumulation of neuronal precursors of RMS and increases the differentiation of migrating neuronal precursors.

Infantile hemangiomas are the most common benign vascular tumors,accounting for 10％ of the incidence of benign tumors.Most hemangiomas may involute spontaneously,without any medical intervention.But partly because of the special parts of its growth,such as pediatric airway (subglottic),potentially it has fatality.So it is essential to give prompt diagnosis and appropriate treatment.Although there are multiple literatures have reported about the management of the subglottic hemangioma,there is no unified conclusion.This article summarizes a variety of methods on the diagnosis and treatment of infantile subglottic hemangioma.And the advantages and disadvantages of various treatments with the cases and the literature were assessed,so as to provide individualized treatment options for infantile.

This paper analyze the dynamic observation results ofCD4+ and CD8+ T lymph cell of13 cases HIV/AIDS patients, who have survived for more than ten years.The analysis show that long term Chinese medicine intervention have effect in increasing and maintaining CD4+ T lymph cell, and activating or adjusting CD8+ lymph cell.Chinese medicine also has the effect in delaying the progression ofAIDS and prolonging longevity.

Objective　The cells of subventricular zone in lateral wall of lateral ventricle of adult rats were localized. Method　Immunohistochemistry. Results　Polysialylated neuronal cell adhesion molecule and phosphotyrosine immunoreactive cells were found in subventricular zone, and they have same distributions, however, no any parvalbulin immunoreactive cells were found in subventricular zone. Conclusion　neuronal precursor cells in subventricular and expression of phosphotyrosine are associated with proliferation of neuronal precursor cells in subventricular zone.

In order to investigate the chemical and morphornetrical properties of the neuronal precursor cells derived from thesubventricular zone(SVZ) of the postnatal rat forebrain in vitro. The cell-type specific antibodies were used for the immunocy-tochemical staining ,and the morphometric parameters which were the mean soma diameter and the ellipticity index (i. e. , thesmallest soma diameter divided by the largest soma diameter) of every SVZ-derived cell were measured for identifying the pheno-types of the SVZ cells in vitro. The experiment animals were SD rats (weights: 100～ 150 g), the SVZ cells derived from thepostnatal rats were cultured on poly-D-lysine-coated 24-well glass chamber slides in the Neurobasal Medium supplemented withB27 in 5% CO2 at 37 C. The following results were obtained.. At 1 day in vitro, almost all SVZ cells (〉90%) from the postna-tal rat forebrain expressed Tujl, an antibody that recognizes neuron-specific tubulin. Likewise, the preponderance of the SVZcells expressed the polysialylated neural cell adhesion molecule (PSA-N-CAM) ; The majority of the SVZ Tujl-positive cells cul-tured were the cells that had oval-shaped bodies with two short, unbranched processes protruded from every two poles, theirmean soma diameter were 8.42±1.03μm and their ellipticity index were 0.57±0.12. Meanwhile, there were approximately20% of the SVZ cells in culture that were sphere-shaped cells with mean soma diameter 7.20±l.04 μm , and it might be observed that these cells connected with one another. As the time in culture went on, these sphere-shaped SVZ-derived cells alsotransformed to oval-shaped ones as described above, but it could be observed that the cells were still connected in the processesof them. By 3 and 5 days in culture, the SVZ cells had larger cell somas (average diameter 9. 07±1.07 μm), and often consider-ably longer processes but still with few branches. Immunocytochemical staining revealed that the majority of the SVZ cells in cul-ture remained Tujl-positive, PSA-N-CAM-positive. By 7 days in culture, the Tujl-positive cells in culture showed remarkablemorphological changes, and possessed typical neuronal phenotypes, which had more larger cell somas (average diameter 12.8 ±1.13 μm), and had more longer, branched processes. Our results showed that the SVZ in the postnatal SD rats contained theneuronal precursor cells which were PSA-N-CAM-positive and could differentiate into new neurons in vitro.

[ Objective ] To investigate the therapeutic effect of Chinese herbal medicines, which have the actions of dispersing stagnated liver-Qi and promoting bile secretion, clearing heat and removing damp, activating blood and removing blood-stasis, in the treatment of the third-level or above intrahepatic biliary duct stone. [Methods] After the routine surgical treatment including cholecystectomy, choledochotomy with T-tube drainage and choledochoscope lithotomy, 42 cases of third-level or above intrahepatic biliary duct stone received Dandao Paishi Mixture (DPM, mainly composed of Herba Lysimachiae, Radix Clematidis, Herba Artemisiae Scopariae, Radix Aucklandiae, Rhizoma Curcumae Longae, Radix Curcumae, etc.) for oral use. The effects of DPM on the intrahepatic biliary duct stone were evaluated after treatment. [Results] Before the treatment of DPM, the stones in third-level or above intrahepatic biliary ducts cannot be taken out; after the treatment of DPM, T-tube reverse biliary contrast examination showed that stones were removed in 39 (92.9%) cases, stones still existed in the common bile duct in 3 cases and then were removed by lithotomy through T-tube sinus of the common bile duct with Olympus fiber choledochoscope 8 weeks later. [Conclusion] DPM has good lytholytic and lithagogue effects for the treatment of third-level or above intrahepatic biliary duct stone and for intrahepatic biliary duct incarcerated stone. It can also reduce the postoperative residue of stone and recurrence rate.

Objective To explore the correlations of lung resistance protein (LRP) and glutathione S transferase π (GST-π) to chemotherapy resistance and prognosis of epithelial ovarian cancer.Methods The expressions of LRP and GST-π in epithelial ovarian cancer were examined with immunohistochemistry.Correlations of LRP and GST-π to chemotherapy efficacy and survival time after operation were analyzed.Results The short-term efficacy rates of ovarian cancer were lower in patients with positive expressions of LRP and GST-π than those with negative expressions [61.2％,61.7％ vs 94.1％,89.5％,x2 =6.47,4.94,P =0.011,P =0.026].The positive rates of LRP and GST-π were significant higher in patients with chemotherapy resistance than in those sensitive to chemotherapy [91.3％,87.0％ vs 65.1％,62.8％,P ＜ 0.05].Log-rank test showed that patients with positive LRP and GST-π had shorter survival time than those negative,and patients with both positive LRP and GST-π had shorter survival time than those both negative (P ＜ 0.05).Conclusions The expressions of LRP and GST-π in epithelial ovarian cancer could be used to predict chemotherapy resistance and prognosis of patients.

Objective To explore the effect of insight education and self-confidence training on the quality of life and well-being rating of first episode schizophrenia. Methods 96 inpatients with first episode schizophrenia were randomly divided into the observed group (48 cases) in which patients were treated with risperidone plus insight education and self-confidence training and the control group (48 cases) in which patients were treated with risperidone only. These patients had been treated for 8 weeks and followed up for 0.5 year after discharged. The assessments included the Positive and Negative Symptoms Scale (PANSS),WHO QOL-100,General Well-Being Schedule (GWB) and the Self-Esteem Scale (SES) before the treatment and at the end of the following-up. Results The scores of PANSS, QOL-100, GWB and SES in both groups didn't show significant difference before the treatment (P>0.05). At the end of following-up, the total score, negative score and positive score of PANSS in the observed group were lower than that in the control group (P<0.01), while the total score of QOL-100, areas of mentality, dependence, social relation factor scores, the scores of GWB and SES in the observed group were higher than that in the control group(P<0.05 or P<0.01). Conclusion The insight education and self-confidence training can help to improve the symptom of first episode schizophrenia and enhance their quality of life and well-being rating.

ObjectiveThe research is that pulse magnetic acupuncture in scalp point affects the nerve function and endothelin-1(ET-1)capacity of acute cerebral ischemia rat. Methods70 rats were divided randomly into seven groups: normal, artificial operation, model, static magnetic acupuncture, normal acupuncture, electric acupuncture and pulse magnetic acupuncture, every group had 10 rats and the nerve function and plasma ET-1 capacity of rats were examined.ResultsStatic acupuncture, electric acupuncture, pulse magnetic acupuncture and normal acupuncture can improve the nerve function and decrease the capacity of ET-1, but pulse magnetic acupuncture and normal acupuncture improve obviously.Conclusions Pulse magnetic acupuncture and normal acupuncture have the same effect to improve the nerve function and decrease the capacity of ET-1.

Objective To analyze the pattern of normal bone marrow on whole body diffusionweighted imaging (WB-DWI) and its influence factors.MethodsA total of 98 healthy volunteers (male 47 and female 51). All volunteers underwent WB-DWI at 1.5 T MR scan. The ADC value,the signal intensity on DWI obtained with a b value of 800 s/mm2 ( SIDWI ),and the signal intensity on short time inversion recovery images ( SISTIR ) of thoracic vertebrae,lumber vertebrae,bilateral head of femur,bilateral neck of femur,bilateral superior segment of femur,bilateral inferior segment of femur,bilateral ilium,bilateral head of humerus,bilateral scapula were measured and compared with ANOVA test and StudentNewmar-Keuls test.The normal appearance of bone marrow on WB-DW[ was assessed. The relationship between the SIDwI and the ADC,and the SIDWI and the SISTIR of bone marrow were analyzed.The ADC of bone marrow between male and femaIe were compared. Spearman correlation analysis was performed for different age groups.Results( 1 ) Bone marrow signal intensity was different among 98 healthy volunteers.Bone marrow in 69 healthy volunteers (female 24,male 45 ) showed low to intermediate signal intensity,whereas in the remaining 29 healthy volunteers (female 27,male 2) showed high signal intensity.(2) The SIDWI of thoracic vertebrae ( median 44.54),lumber vertebrae ( median 35.01 ),head of femur ( median 13.61 ),neck of femur ( median 16.00),superior segment of femur ( median 21.45 ),ilium ( median 25.77),head of humerus (median 18.35),scapula (median 36.12) was positively correlated with the ADC [ (0.55 ±0.08) × l0-3,(0.53 ±0.08) × 10-3,(0.30 ± 0.10) × 10-3,(0.42 ± 0.16) × 10-3,(0.74±0.14) ×l0- 3,(0.49±0.10) ×10-3,(0.36±0.13) ×10-3,(0.49±0.11) × 10-3mm2/s]and the SISTIR ( median 61.81,64.99,53.27,69.08,73.10,66.35,73.16,79.81 ),r =0.513 and 0.695,0.741 and 0.764,0.443 and 0.489,0.641 and 0.656,0.510 and 0.648,0.475 and 0.715,0.366 and 0.446,0.437 and 0.739 ;P ＜ 0.01. (3) There was significant difference of the ADC of bone marrow in different bone,F =138.69,P ＜ 0.01. Student-Newman-Keuls test revealed that no significant difference was found in the ADC between thoracic vertebrae and lumbar vertebrae,ilium and scapula,head of humerus and inferior segment of femur ( P ＞ 0.05 ),and significant difference was found in the ADC values between the remaining two groups ( P ＜ 0.05 ). The bones associated with decreasing ADC values were superior segment of femur,thoracic vertebrae and lumber vertebrae,ilium and scapula,neck of femur,head of humerus,head of femur and inferior segment of femur. ( 4 ) The ADC values of bone marrow of female subjects in thoracic vertebrae [ (0.59 ±0.07) × 10-3 mm2/s],lumber vertebrae [ (0.58 ±0.06) × 10 -3 mm2/s],head of femur ( median 0.33 × 10 -3 mm2/s),neck of femur ( median 0.53 × 10 -3 mm2/s),superior segment of femur ( median 0.81 × 10-3 mm2/s),inferior segment of femur ( median 0.32 ×10-3 mm2/s),ilium [ (0.52 ± 0.09 ) × 10-3 mm2/s ],head of humerus (median 0.42 × 10-3 mm2/s),scapula [ (0.53 ± 0.09) × 10-3 mm2/s] were significantly higher than those of male subjects [ (0.51 ±0.07) × 10-3,(0.48 ±0.07) × 10-3,median 0.23 × 10-3,median 0.31 × 10-3,median 0.66 × 10-3,median 0.23 × 10-3,(0.46 ±0.10) × 10-3,median 0.27 × 10-3,(0.45 ±0.11 ) × 10 3mm2/s].(5)There was significant negative correlation between the ADC values of bone marrow and age in thoracic vertebrae,lumber vertebrae,head of femur,neck of femur,superior segment of femur,ilium,head of humerus for female subjects,r =-0.549, -0.629, -0.329, -0.524, -0.338, -0.548 and -0.416,respectively,P ＜ 0.05.There was no significant correlation between ADC values and age in inferior segment of femur and scapula for female subjects and all the regions for male subjects ( P ＞ 0.05 ).Conclusions The ADC and the SIsTIR of bone marrow correlates with the SIDW1.The ADC values of bone marrow is affected by age and sex,and is different for different bones.