1.HPLC determination of oleanolic acid and ursolic acid in Qingdu tablet
Zhiheng LI ; Yanfei LIN ; Bijun HU
International Journal of Traditional Chinese Medicine 2016;38(10):932-935
Objective To establish a method for quality control of oleanolic acid and ursolic acid in Qingdu tablet. Methods The content of oleanolie acid and ursolic acid in Qingdu tablet were determined by high performance liquid chroma-tography(HPLC). The analytical column was kromasil-C18 (250 mm × 4.6 mm, 5 μm). The mobile phase consisted of methanol-0.5% phosphoric acid solution (88:12). The UV detection wavelenghth was 210 nm. The flow rate was 1.0 ml/min. Results Oleanolic acid and ursolic acid showed a good linearity in range of 0.06-0.54μg (R=0.999 3) and 0.30-2.70μg (R=0.999 7). The average recovery rates of Oleanolic acid and ursolic acid were 100.48% and 102.21%, respectively. Conclusions This method is simple, rapid and accurate. It could be used for the quality control and quality study of the Qingdu tablet.
2.EXPRESSION OF YB-1 IN ENDOMETRIOSIS
Xiaolan LAI ; Xing HUA ; Bijun LIN
Modern Hospital 2015;(3):33-35
Objective To investigate the expression and significance of YB -1 in serum and endometrial tis-sues in patients with endometriosis ( EMs ) for taking YB -1 EMs as an index of early diagnosis and treatment . Methods ELISAwas adopted to detect YB -1 expressions in serum of EMs group and control group .The expression of YB-1 in endometrial tissue in the EMs group and control group was detected by immunohistochemistry SP method . Results The average concentration of YB -1 in serum of EMs group (14.65 ±3.91 ug/L) was higherthan thatin the control group (9.64 ±2.37 ug/L), with statistically significant differences (p<0.05).The results of immuno-histochemistry showed that the expression of YB -1 was moderately positive in endometria of patients with EMs . Weakly positive expressions of YB -1 were detected in a fewcases of the control group .There are significant differ-ences in the positive expression rates of YB -1 between two groups ( p <0.05).Conclusion The expression of YB-1 in serum and endometria of patients with EMs is higher .YB-1 can not only be an intracellular marker , but also expected to become an ideal serological marker .
3.Analysis of the clinical phenotype in 20 children with 22q11.2 deletion syndrome
Bijun SUN ; Bingbing WU ; Xiaohong GUO ; Renchao LIU ; Lin YANG ; Wenhao ZHOU
Chinese Journal of Applied Clinical Pediatrics 2015;30(8):589-592
Objective To investigate the clinical manifestations in patients with 22q11.2 deletion syndrome (22q11.2DS) to improve the understanding of the disease.Methods Twenty patients with 22q11.2 DS were enrolled from Children's Hospital of Fudan University between August 2008 and April 2014.Cytogenetic and molecular genetic methods included fluorescence in situ hybridization (10 cases),and multiplex ligation-dependent probe amplification (10 cases).Age at the time of the diagnosis,sex and clinical manifestations were analyzed.Results The subject group consisted of 20 patients.Among them,13 cases (65%) were male and 7 cases (35%) were female.The median diagnostic age was 3.9 months.The presence of congenital heart diseases was identified in 17 patients (85%) and surgical correction was performed in 9 cases of them.The most frequent of complex congenital heart diseases were tetralogy of Fallot (20%) and pulmonary atresia (20%).Ten patients had varying degrees of T-cell immune function defects.Decrease in total lymphocytes and only CD8 counts were present in 45% and 5%,respectively.Hypogammaglobulinemia was not detected in any patient.Six eases with T-cell immune function defects were treated with thymosin,4 of which were followed up for months,and the prognosis was good.Hypocalcemia was detected in 6 patients (30%),3 of whom presented with hypocalcemic seizures and hypoparathyroidism.Craniofacial dysmorphisms were detected in 3 patients(15%),2 of them only presented with micrognathia.Otorhinolaryngologic abnormalities were found in 4 cases (20%),3 of whom had laryngeal abnormalities,one of whom had cleft palate.Psychomotor developmental delay was found in 9 cases.Conclusions Congenital heart defects,hypocalcemia and/or impaired immune function are diagnostic features for 22q1 1.2 deletion syndrome,and they should be considered for cytogenetic analysis.
4.Genetic diagnosis of spondyloenchondrodysplasia with immune dysregulation:a case report and literature review
Chen DONG ; Bijun SUN ; Lin YANG ; Bingbing WU ; Wenhao ZHOU ; Huijun WANG
Journal of Clinical Pediatrics 2016;34(8):584-588
Objective To investigate the clinical and laboratory diagnosis in a rare case with dwarifsm and multisystem abnormalities. Methods Whole-exome sequencing was performed and data was processed using high-throughput data analysis pipeline. Genetic test result is veriifed by Sanger sequencing. Results This is a 14-year-old boy with short stature (the height is 132 cm) and autoimmune hemolytic anemia. He was treated with long-term oral prednisone. Head CT from other hospital found multiple calciifcations on both sides of the basal ganglia, two sides of the frontal lobe, and the left side of parietal lobe. Lateral spinal X-ray photography showed lfat in thoracolumbar vertebral body. Valgus was surgically corrected. He also has facial pigmentation spot and onychomycosis. Whole-exome sequencing combined with Sanger sequencing identiifed a known homozygous pathogenic mutation in ACP 5 genes (c. 643 G>A, p.G 215 R). Identiifcation of such a mutation results in the diagnosis of spondylo enchondrody splasia with immune dysregulation (SPENCDI). Conclusions Whole-exome sequencing is one of the effective methods for detection of rare disease, the SPENCDI case reported here is a good example of it.
5.Efficiency comparison between PET/CT and conventional work-up for evaluating distant metastasis of nasopharyngeal carcinoma.
Shaoxiong LIN ; Xiangping LI ; Hubing WU ; Juan LU ; Bijun LIANG ; Xiaohong PENG ; Siyang LI ; Li YU ; Xiong LIU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2012;26(12):529-532
OBJECTIVE:
The large sample retrospective cohort study were used to compare the diagnostic efficiency of PET/CT with conventional work-up (CWU) for evaluating nasopharyngeal carcinoma (NPC) distant metastasis.
METHOD:
Five hundred and fourteen patients with NPC were divided into PET/CT group and CWU group according the method of detecting distant metastasis. Chest film, abdominal ultrasonography, and bone scan were used in CWU group. Then the diagnostic efficiency of the two groups was compared.
RESULT:
Two hundred and sixteen patints were enrolled in PET/CT group and two hundred and nineteen-eight ones in CWU group. There were 28 out of 412 suspicious patients in CWU group were confirmed, another 3 patients confirmed without positive findings, compared with PET/CT group that all 32 suspicious patients were confirmed. The sensitivity and specificity of PET/CT were 100.0% (32/32) and 100.0% (184/184), as compared to 90.3% (28/31) and 94.8% (253/267) with CWU respectively, while there was no statistical significance. Further research found out that the percentage of patients with multiple distant metastatic sites and multiple organ metastases was higher in PET/CT group (P < 0.05), and similarly of patients with distant metastasis in N2-3 stages (P < 0.01).
CONCLUSION
Our results suggest that PET/CT appears to be slightly superior to conventional work-up in assessment of distant metastasis in NPC patients, but CWU is still a cheap and practical method.
Aged
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Carcinoma
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Cohort Studies
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Female
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Fluorodeoxyglucose F18
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Humans
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Male
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Middle Aged
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Nasopharyngeal Carcinoma
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Nasopharyngeal Neoplasms
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diagnosis
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secondary
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Positron-Emission Tomography
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methods
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Radiopharmaceuticals
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Retrospective Studies
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Sensitivity and Specificity
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Tomography, X-Ray Computed
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Ultrasonography