Comparison of 17β-estradiol against retinal light damage in BALB/c or C57BL/6 mice / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To investigate the neuroprotective effect of 17β-estradiol(E2)on retina light damage in BALB/c and C57BL/6 mice and provide experimental data for the successful construction of a research model for E2 against retinal light damage.METHODS:Totally 40～45 adult female BALB/c or C57BL/6 mice were divided into six groups, 6 for each group: normal control, ovariectomized control, ovariectomized light(mice were stimulated with continuous white light at 10000 lx for 4, 8, 12, 16, and 24h after 14d of ovariectomy), intravitreal administration sham operation, saline and E2 pre-treatment groups(2μL saline or 10-5mol/L E2 were intravitreal injected respectively after 14d of ovariectomy operation and 24h of dark adaptation). The morphological and functional changes of the retina were detected by paraffin section HE staining, TUNEL staining and electroretinogram.RESULTS:In the ovariectomized light group, the thickness of the inner/outer nuclear layer decreased significantly from the 4h stimulation of 10000 lx white light group. Intravitreal administration of E2 significantly inhibited the apoptosis of retinal cells in the two strains of mice(P<0.01)and the decrease of amplitudes of a- and b-waves in max-ERG of C57BL/6 mice(P<0.05).CONCLUSION:The light loss sensitivity of two strains of mice was different under the same light stimulation. E2 had a protective effect on both morphology and function of the retina in BALB/c mice, and had a significant protective effect on retina function in C57BL/6 mice.

Physical growth and dietary characteristics of children with attention deficit hyperactivity disorder: a cross-sectional study / 中国当代儿科杂志

OBJECTIVES@#To investigate the physical growth and dietary characteristics of children with attention deficit hyperactivity disorder (ADHD), and to analyze their relationship with core symptoms of ADHD.@*METHODS@#A total of 268 children who were newly diagnosed with ADHD in Children's Hospital of Nanjing Medical University from June to December 2020 were included in the ADHD group, and 102 healthy children who underwent physical examination during the same period were selected as the control group. Physical evaluations and dietary surveys were conducted for both groups. ADHD diagnosis and scoring were performed according to the Diagnostic and Statistical Manual of Mental Disorders (5th edition). Factor analysis, Spearman correlation analysis, and mediation analysis were used to study the relationship between core symptoms of ADHD, dietary patterns, and physical growth.@*RESULTS@#The rate of overweight/obesity in the ADHD group was significantly higher than that in the control group (35.8% vs 21.6%, P<0.05). Three dietary patterns were extracted from the food frequency questionnaire: vegetarian dietary pattern, traditional dietary pattern, and snack/fast food pattern. The factor score for the snack/fast food pattern in the ADHD group was higher than that in the control group (P<0.05). There was a significant positive correlation between ADHD symptom scores, snack/fast food pattern factor scores, and body fat percentage (P<0.05). The mediation analysis showed that the snack/fast food pattern played a partial mediating role in the relationship between ADHD symptom scores and body fat percentage, with a mediation proportion of 26.66%.@*CONCLUSIONS@#The rate of overweight/obesity in children with ADHD is higher than that in non-ADHD children. Core symptoms of ADHD are related to dietary patterns and physical growth, with the snack/fast food pattern playing a partial mediating role in the relationship between core symptoms of ADHD and physical growth.

Characteristics of heart rate variability in patients with vestibular migraine / 中华耳鼻咽喉头颈外科杂志

Objective: To analyze the characteristics of heart rate variability (HRV) in patients with vestibular migraine (VM) and to explore its possible mechanism. Methods: Forty-eight patients with VM [17 males and 31 females, age (36.2±9.2) years], 44 patients with migraine [15 males and 29 females, age (34.4±9.0) years], and 30 patients with health check-ups during the same period [12 males and 18 females, age (34.6±6.5) years old] were selected as study subjects. Ambulatory ECG monitoring was performed in all subjects, and the HRV characteristics of each group were analyzed from both daytime and nighttime time phases. Time domain parameters were analyzed: standard deviation of normal to normal (SDNN), root mean square of successive differences (RMSSD), and percentage of normal to normal intervals differing by more than 50 ms (pNN50). The parameters in the frequency domain were analyzed: high frequency power (HF), low frequency power (LF), and the ratio of low frequency to high frequency power (LF/HF). Statistical analysis of the data was performed using SPSS 26.0 software. Results: At night, RMSSD (F=6.694) and HF (F=9.434) were lower in the VM and migraine groups compared to the control group, while LF/HF (F=16.049) and LF (F=9.434) were elevated compared to the control group, with statistically significant differences (P<0.05 or P<0.01), while LF was significantly elevated in the VM group compared to the migraine group, with a statistically significant (P<0.05). On the daytime measurements, mainly LF was elevated in the vestibular migraine group compared with the control group, while RMSSD was decreased compared with the control group, with statistically significant differences (P<0.05). Conclusion: Autonomic dysfunction characterized by sympathetic hyperfunction and vagal hypofunction is present in VM patients and is more pronounced at night. In addition, the degree of autonomic dysfunction may be more pronounced in VM patients than in migraine patients.

Analysis of vitamin D status among children under 7 years of age in some regions of China / 中华儿科杂志

Objective: To explore current vitamin D status and influential factors of vitamin D deficiency and insufficiency among children under 7 years of age in 11 provinces, autonomous regions or municipalities of China. Methods: According to the "province-city-hospital" sampling technical route, a total of 1 531 healthy children under 7 years of age were sampled from 11 provinces, autonomous regions or municipalities in China by the cluster random sampling method from November 2020 to November 2021. The demographic information, family conditions, behavior and living habits and feeding behaviors were collected using unified questionnaire. Serum 25-hydroxyvitamin D(25(OH)D) levels were measured by liquid chromatography-tandem mass spectrometry. Serum 25(OH)D<30 nmol/L was considered deficient and 30-50 nmol/L was considered insufficient. With 25(OH)D≤50 nmol/L as the dependent variable, multivariate Logistic regression was applied to analyze the association between vitamin D deficiency and insufficiency and potential influential factors. Results: The prevalence of vitamin D deficiency and insufficiency among children under 7 years of age in 11 provinces, autonomous regions or municipalities of China was 14.0% (215/1 531), 3.8% (25/664) and 21.9% (190/867) in 0-<3 and 3-<7 of age years, respectively. Compared to children aged 0-<3 years, children aged 3-<7 years had a 2.6-fold increased risk of vitamin D deficiency and insufficiency (OR=3.60, 95%CI 1.93-6.72, P<0.001). Frequent sunlight exposure (OR=0.46, 95%CI 0.29-0.73, P=0.001), vitamin D supplementation (sometimes, OR=0.33, 95%CI 0.21-0.51, P<0.001; daily, OR=0.20, 95%CI 0.11-0.36, P<0.001) and infant formula intake(4-7 times per weeks, OR=0.43, 95%CI 0.28-0.68, P<0.001) were protective factors for vitamin D deficiency and insufficiency. Conclusion: Vitamin D deficiency and insufficiency are common among children under 7 years of age in 11 provinces, autonomous regions or municipalities of China, which is affected by age, sunlight exposure, vitamin D supplementation and infant formula intake.

Risk factors for poor prognosis of neonatal bacterial meningitis / 中国当代儿科杂志

OBJECTIVE@#To investigate the risk factors for poor prognosis of neonatal bacterial meningitis.@*METHODS@#A retrospective analysis was performed for the clinical data of 152 children with neonatal bacterial meningitis. According to their prognosis, they were divided into a good prognosis group with 122 children and a poor prognosis group with 30 children. The two groups were compared in terms of general status, initial symptoms, and laboratory findings, and the risk factors for poor prognosis were analyzed.@*RESULTS@#Compared with the good prognosis group, the poor prognosis group had a significantly higher proportion of children with a very low birth weight, a peripheral blood white blood cell count (WBC) of 20×10/L, a C-reactive protein level of >50 mg/L, a cerebrospinal fluid (CSF) WBC of >500×10/L, a CSF glucose level of 2 g/L, as well as significantly higher positive rates of blood culture and/or CSF culture, Gram-positive bacteria, and Streptococcus agalactiae (P2 g/L were independent risk factors for poor prognosis of neonatal bacterial meningitis.@*CONCLUSIONS@#A CSF glucose level of 2 g/L are risk factors for poor prognosis of neonatal bacterial meningitis.

Human milk composition and children's growth and development / 中国实用儿科杂志

Breastfeeding not only meets the growth needs of infants,promotes the development and maturation of their physiological functions,but also is related to the health of adults. The abundant nutrients and many active substances in human milk are the basis of protection. This article clarifies the secretory characteristics of human milk components and their role in the growth and development of infants,in order to emphasize the importance of promoting breastfeeding for human health.

Vaginal anatomical and functional outcomes of 49 patients with Mayer-Rokitansky-Küster-Hauser syndrome undergoing modified laparoscopic sigmoid vaginoplasty / 中国实用妇科与产科杂志

OBJECTIVE: To investigate the anatomy and sexual outcomes of patients with Mayer-Rokitansky-KüsterHauser(MRKH)syndrome undergoing modified laparoscopic sigmoid vaginoplasty.METHODS: From January 2010 to January 2017,49 MRKH syndrome patients underwent the modified laparoscopic sigmoid vaginoplasty in Guangdong Women and Children's Hospital.Analysis of the anatomy and the sexual outcomes of the neovagina was conducted.The sexual functional outcomes were assessed using the Female Sexual Function Index(FSFI)questionnaire.45 cases of similar-aged women with normal sexual life were selected as controls.RESULTS: Modified laparoscopic sigmoid vaginoplasty was successfully performed in all 49 patients.The mean operative time and intraoperative blood loss was(186±53.7)minutes and(63.8±10.6)mL respectively.The mean length and width of the neovagina at the 6-month followup examination was(12.9±1.56)cm and(3.32±0.33)cm respectively.FSFI score between the MRKH group and the control group:Desire[(4.40±0.59)vs.(4.04±0.71),P0.05],Lubrication[(4.90 ± 0.58)vs.(4.67 ± 0.79),P>0.05],Orgasm[(4.29 ± 0.70)vs.(4.20 ± 0.79),P>0.05],Satisfaction[(4.51 ± 0.82)vs.(4.45 ± 0.91),P>0.05],Comfort[(4.71 ± 0.81)vs.(4.78 ± 0.72),P>0.05],Total score[(27.08 ± 2.83)vs.(26.53 ± 2.98),P>0.05].CONCLUSION: Modified laparoscopic sigmoid vaginoplasty is an effective and safe technique for MRKH syndrome patients,which provides a nearly normal sexual function for patients with MRKH syndrome.

Effects of ω-3 polyunsaturated fatty acids on lymphocyte apoptosis rate in rats with sepsis / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To investigate the effects of ω-3 polyunsaturated fatty acids (ω-3 PUFAs) on the apoptosis of thymic and splenic lymphocytes in rats with sepsis.</p><p><b>METHODS</b>A total of 80 female Sprague-Dawley rats aged 7-8 weeks were randomly divided into model group, conventional lipid emulsion group (0.1 g/kg daily), low-dose ω-3 PUFAs group (0.1 g/kg daily), middle-dose ω-3 PUFAs group (0.2 g/kg daily), and high-dose ω-3 PUFAs group (0.3 g/kg daily). Cecal ligation and puncture were used to establish a rat model of sepsis. The treatment groups were then given tail vein injection of lipid emulsion or glucose diluents of ω-3 PUFAs at different doses, and the model group was given glucose injection via the tail vein at the same dose. According to the time of sacrifice, each group was further divided into 24-hour and 72-hour subgroups, with 8 rats in each subgroup. Hematoxylin and eosin staining was used to observe the pathological changes in the thymus and spleen. TUNEL was used to measure the apoptosis rates of thymic and splenic lymphocytes.</p><p><b>RESULTS</b>In the three ω-3 PUFAs groups, the rats had a complete thymic lobular structure and clear structures of the cortex and medulla. In the model and the conventional lipid emulsion groups, the boundaries of the cortex and medulla were unclear and the number of lymphocytes was significantly reduced. In the ω-3 PUFAs groups, the structure of the red and white pulp of the spleen was maintained with the presence of splenic follicles, while in the model and the conventional lipid emulsion groups, the structure of the red and white pulp of the spleen was disordered and splenic follicles were significantly reduced or disappeared. Compared with the model and the conventional lipid emulsion groups, the ω-3 PUFAs groups showed significant reductions in the apoptosis rates of thymic and splenic lymphocytes at 24 and 72 hours (P<0.01). Compared with the low-dose ω-3 PUFAs group, the high-dose ω-3 PUFAs group had significantly reduced apoptosis rates of splenic lymphocytes at 24 and 72 hours (P<0.05).</p><p><b>CONCLUSIONS</b>ω-3 PUFAs can reduce the apoptosis of thymic and splenic lymphocytes in rats with sepsis in a dose-dependent manner.</p>

Research progress of neuregulin 4 biological function / 生理学报

Neuregulin 4 (NRG4) is a kind of protein containing epidermal growth factor (EGF)-like domains, mainly expressed and secreted by brown adipocytes. It specifically activates EGF receptor ErbB4 (v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 4) to stimulate cell proliferation, inhibit apoptosis and improve energy metabolism of cells. Increasing evidence has shown that NRG4 plays an important role in epithelial cell-related diseases, cardiovascular diseases, tumors and glycolipid metabolic diseases, and therefore it could be a potential therapeutic target of some diseases.

Different adipose tissue depots and metabolic syndrome in human / 生理学报

Obesity is characterized by abnormal and excessive adipose tissue accumulated in the body. Compared with peripheral obesity (the accumulation of subcutaneous adipose tissue), abdominal obesity (the accumulation of visceral adipose tissue) is associated with increased risk of the metabolic syndrome, such as diabetes, hypertension, atherosclerosis, and dyslipidemia. Adipose tissue is a highly heterogeneous endocrine organ. Adipose tissue depots differ significantly in anatomy, cell biology, glucose and lipid metabolism as well as in endocrine regulation. Visceral adipose tissue has a stronger metabolic activity and secrets a larger amount of free fat acids, adipocytokines, hormones and inflammatory factors, which flux into the liver directly via the hepatic portal vein. These characteristics indicate that visceral adiposity may lead to the metabolic syndrome and thus visceral adipose tissue might be the clinical target for the prevention and treatment of obesity.

Pro-inflammatory mechanism of lectin from Pinellia pedatisecta on macrophage / 中国中药杂志

To investigate the mechanism of lectin from Pinellia pedatisecta(PPL) on macrophage-induced inflammation and its association with inflammatory corpuscles NLRP3. Lectin from P. pedatisecta was isolated and purified by gel chromatography, and its purity was analyzed by using SDS-PAGE gel electrophoresis. ELISA was used to investigate the effect of PPL on inflammatory cytokines released by macrophages, with IL-1β as indicators;and fluorescence probe DCFH-DA fluorometer was used to determine changes in active oxygen ROS of macrophages after application of lectin from P. pedatisecta.RAW264.7 cells were pre-treated with ROS inhibitor N-acetylcysteine (NAC) to investigate the effect on ROS and the release of inflammatory factor IL-1β from macrophages to research the relationship between them. The protein levels of NLRP3, Caspase-1 p20, ASC and TXNIP were determined by Western blot.The results showed that isolated and purified PPL could reach electrophoretic purity; PPL stimulated macrophages and induced the excessive release of ROS, leading to strong oxidative stress reaction, and the levels of intracellular inflammatory factorsIL-1β were significantly increased. NAC could inhibit PPL-induced ROS excessive production and significantly reduce the release of IL-1β. In addition, PPL could induce the increase in protein expression levels of Caspase-1 p20, NLRP3 and ASC, and significantly reduce TXNIP expression. The results showed that PPL could cause a strong oxidative stress response by stimulating macrophages, activate inflammatory corpuscles NLRP3, and result in large amount of IL-1β release. That is, PPL could lead to inflammatory cascade reaction by promoting the maturation and secretion of IL-1β through ROS-TXNIP-NLRP3-IL-1β signaling pathway.

Nutritional risk screening and its clinical significance in 706 children hospitalized in the surgical department / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To investigate nutritional risk and its relationship with clinical outcome in children hospitalized in the surgical department, and to provide a scientific basis for clinical nutrition management.</p><p><b>METHODS</b>Nutritional risk screening was performed on 706 children hospitalized in the surgical department using the Screening Tool for Risk on Nutritional Status and Growth. The data on nutritional support during hospitalization, incidence of infectious complications, length of hospital stay, post operative length of hospital stay and total hospital expenses were recorded.</p><p><b>RESULTS</b>Of the 706 cases, 11.5% had high nutritional risk, 46.0% had moderate nutritional risk, and 42.5% had low nutritional risk. Congenital hypertrophic pyloric stenosis, intestinal obstruction and congenital heart disease were the three most common types of high nutritional risk. The incidence of high nutritional risk was significantly higher in infants than in other age groups (P<0.01). Fifty-two (64.2%) of the eighty-one children with high nutritional risk received parenteral nutrition. Children with high nutritional risk were significantly more likely to have weight loss than children with low nutritional risk (P<0.05). Children with high nutritional risk had significantly increased incidence of infectious complications, length of hospital stay, post operative length of hospital stay and total hospital expenses compared with those with moderate or low nutritional risk (P<0.01).</p><p><b>CONCLUSIONS</b>Moderate or high nutritional risk is seen in children hospitalized in the surgical department. Nutritional risk score is correlated with clinical outcome. Nutritional support for these children is not yet properly provided. Nutritional risk screening and standard nutritional support should be widely applied among hospitalized children.</p>

Study on volume of infusion before measure intra-abdominal pressure via the bladder in children / 中华实用儿科临床杂志

Objective To investigate the volume of infusion before measure intra-abdominal pressure (IAP) via the bladder in children and provide a more accurate value of the IAP in clinical measurements.Methods Direct measure IAP during laparoscopy compared with indirect measure IAP via the bladder after infusion of 1 mL/kg or a total of 25 mL 9 g/L saline to evaluate the optimum bladder infusion volume in children.Results A total of 21 children scheduling laparoscopy recruited in the study.The value of normal IAP measured via the bladder in children was 0.40-6.69 mm Hg(1 mm Hg =0.133 kPa).The indirect IAP measured via the bladder was positively associated with the direct IAP.The regression equations were Y=2.869 +0.706X(r =0.835,R2 =0.698) for the infusion of 1 mL/kg 9 g/L saline and Y =3.734 + 0.735X(r =0.796,R2 =0.633) for the infusion of 25 mL 9 g/L saline.There was no significant difference in slopes between the 2 regression equations(P =0.275).Sixteen out of 21 (76.2％) children's indirect IAP measured via the bladder were higher than their direct IAP,while 5 of 21 cases(23.8％) were lower.The area under receiver-operator characteristic (ROC) curve for direct IAP and accelerated heart rate was 0.863 and that area for direct IAP and quicken respiration was 0.845.Conclusions The measurement of indirect IAP via the bladder is able to predict the practical lAP in children population.There is no difference in IAP measured via the bladder between the infusion of 1 mL/kg and a total of 25 mL 9 g/L saline.The IAP measured via the bladder after infusion of 1 mL/kg 9 g/L saline is more related to the direct IAP than the volume of 25 mL 9 g/L saline.The value of intraabdominal hypertension in children can be defined as direct IAP ≥9 mm Hg.

Comparison of bioelectrical impedance analysis, body mass index and waist circumference in evaluating growth and development of children / 中华实用儿科临床杂志

Objective To compare body mass index(BMI),bioelectrical impedance analysis(BIA) and waist circumference(WC) for the assessment of the growth and development of the children,and to explore the accuracy of BIA and WC for the assessment of the growth and development of the children.Methods Children were surveyed in Department of Child Health Care of Nanjing Children's Hospital from Aug.2011 to Aug.2012.BIA was used to measure body fat,skeletal muscles and bone minerals of these children,and WC was measured by meterstick.According to BMI and body fat parameters,the study subjects were classified into lower weight,normal weight,overweight and obese groups.According to the WC,the subjects were divided into the normal group and the abnormal group.Results There were 2313 children in this survey,1528 boys of them,median age 7.7 years old(ranged from 3.0 to 16.8 years old),and 785 girls of all the children,median age 7.2 years old(ranged from 3.0 to 17.5 years old).Bone mineral content of skeletal muscles increased with age in boys and girls(P ＜0.001).According to BMI,there were 484(20.9％) obese children and 266(11.5％) lower weight children;according to the BIA,there were 663(28.7％) obese children and 481 (20.8 ％) lower weight children; according to the WC,there were 597 (25.8 ％) abnormal children.The sensitivity and specificity of WC and BIA were both higher in the evaluation of overweight and obesity status.When overweight and obesity were analyzed by BIA as well as WC,girls showed a higher specificity,while the boys showed a higher sensitivity.The sensitivity of BMI was higher than BIA in evaluating weight loss.Conclusions BIA as a commonly used indicator is reliable for population census,and it is more desirable if the measurement of WC is done at the same time.The high sensitivity of BIA makes it more suitable for screening overweight and obesity of children.

Interleukin-1β inhibits the amplitudes of voltage-gated Na(+) currents and action potential in cultured cortical neurons of rat / 生理学报

Interleukin-1β (IL-1β) is an important proinflammatory cytokine and plays key roles in physiological and pathophysiological processes of central nervous system (CNS). The voltage-gated Na(+) channels are essential for electrical properties of excitable cells and control the excitability and action potential (AP) of neurons. Recent studies have showed the relationship between IL-1β and voltage-gated channels. In this work, cultured cortical neurons of rat were treated by 10 ng/mL of IL-1β for 24 h, and then voltage-gated Na(+) currents were recorded using voltage-clamp technique. The results indicated that IL-1β reduced the amplitude of Na(+) currents without any changes in activation or inactivation properties. The current-clamp recording showed that IL-1β reduced the amplitude of AP but not the threshold. These data indicate that IL-1β inhibits the voltage-gated Na(+) currents and the amplitude of AP, and suggest that essential roles of voltage-gated Na(+) channels may be changed by IL-1β. New information about effects of IL-1β on injuries and diseases of CNS was provided.

Characteristics of severely and critically ill children with 2009 influenza A (H1N1) virus infection / 中华儿科杂志

<p><b>OBJECTIVE</b>To analyze the clinical characteristics of severely and critically ill children with 2009 influenza A (H1N1) infection.</p><p><b>METHOD</b>Clinical data of 150 cases with 2009 influenza A (H1N1) virus infection confirmed with the use of a real-time polymerase-chain-reaction assay on nasopharyngeal swab specimens were analyzed.</p><p><b>RESULT</b>Among 150 severely and critically ill children with 2009 influenza A (H1N1) virus infection, 103 were male, 47 were female; the median age was 5 years, 81(55%) were 5 years of age or older; 21 (14%) had underlying chronic diseases. The most common presenting symptoms were fever (95%), cough (89%), vomiting (23%), wheezing (19%), abdominal pain (16%), lethargy (7%), seizures (6%), myalgia (6%), and diarrhea (6%). The common laboratory abnormalities were increased or decreased white blood cells counts (40%), elevated of CRP (33%), LDH (29%), CK (25%) and AST (19%). Clinical complications included pneumonia (65%), encephalopathy (12%), myocarditis (5%), encephalitis (1%) and myositis (1%). All patients had received antibiotics before admission or on admission; 73% of patients had received oseltamivir treatment, 23% of patients had received corticosteroids; 32 (21%) were admitted to an ICU, 13 patients were intubated and mechanically ventilated. Fourteen patients with dyspnea who were irresponsive to the treatment experienced bronchoalveolar lavage with flexible bronchoscopy, and the branching bronchial casts were removed in 5 patients. Totally 145 (97%) patients were discharged, five (3%) died, three previously healthy patients died from severe encephalopathy, one patient died from ARDS, one previously healthy patient died from secondary fungal meningitis.</p><p><b>CONCLUSION</b>Severely and critically ill children with 2009 influenza A (H1N1) virus infection may occur mainly in older children without underlying chronic disease. The clinical spectrum and laboratory abnormality of the patients can have a wide range. Neurologic complications may be common and severe encephalopathy can lead to death in previously healthy children. Early use of bronchoalveolar lavage with flexible bronchoscopy may reduce death associated with pulmonary complications.</p>

Establishment of malignant progression associated gene expression profiles in human brain glioma / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To establish malignant progression associated gene expression profiles in human brain glioma.</p><p><b>METHODS</b>The primary (WHO grade II), recurrent (WHO grade III) and re-recurrent (WHO grade IV) glioma specimens were sequentially collected from one single patient. Gene expression of different tumor specimens and normal brain tissue of the same patient was compared by microarrary techniques.</p><p><b>RESULTS</b>197 differentially expressed genes with differential ratio > or = 3 were observed when compared with normal brain tissue. When the specimens (3 tumor, 1 normal brain) were paired with each other, 7 groups containing 489 genes (upregulated 193, downregulated 296) were observed. According to the descending frequency of the 109 genes with known function, they were the genes associated with development, metabolism, differentiation, signal transduction, DNA binding transcription, cellular receptor, immunity, ion-channel transportation, protein translation, cell backbone motion, stress, protooncogene and anti-oncogene and cell apoptosis, respectively.</p><p><b>CONCLUSION</b>From the 197 differentially expressed genes found in one glioma patient experiencing tumor malignant progression, 17 genes screened out by bioinformatics assay, may offer valuable information on molecular mechanisms on genesis and malignant progression of glioma.</p>