1.Clinical value of multiple tumor marker protein chip detective system in diagnosis and detection of post-operative recurrence of breast cancer
Jiang HE ; Wuzhong YU ; Donghui QIU ; Hongyun ZOU ; Hongchun LIU
Journal of International Oncology 2009;36(1):73-75
Objective To evaluate the clinical value of multiple tumor marker protein chip in diagno-sis and detection of postoperative recurrence of breast cancer.Methods The serum levels of 12 tumor makers (CA199,NSE,CEA, CA2A2,Ferritin,β-HCG,AFP,f-PSA,PSA,CA125,CA153 and HGH)were measured in 70 preoperative breast cancer patients, 32 recurrence patients,52 non-recurrence patients and 76 normal con-trois.Results ①The breast cancer group had significantly higher positive rate than that of the controls (P<0.05).The positive rates and serum levels of CA199,CEA,CA242,Ferritin,CAI25 and CA153 in breast cancer patients had those of control significant differences compared with groups (P<0.05).②The recurrence group had significantly higher positive rate than that of non-recurrence group (P<0.05).The positive rates and se-rum levels of CA199, CEA, Ferritin, CA125 and CA153 in the recurrence patients had significant differences compared with those of non-recurrence patients(P<0.05).③The positive rate of recurrence group had signif-icant difference compared with that of breast cancer group(P<0.05).Moreover,The positive rate and serum level of Ferritin in the recurrence patients had significant difference compared with that of breast cancer pa-tients.Conclusion The multiple tumor marker protein chip detective system has valid value of clinical appli-cation in the diagnosis and detection of postoperative recurrence of breast cancer.The combination detection of CA199, CEA, Ferritin ,CA125 and CA153 may be the economical and effective in the diagnosis and detection of postoperative recurrence of breast cancer.
2.An analysis on biomedical effects of bipolar electric pulses at different central frequency.
Yafang TAN ; Hongchun YANG ; Jun XU ; Yi ZHANG ; Minghe WU ; Heng ZOU
Journal of Biomedical Engineering 2012;29(3):438-442
Adopting the cell model of multilayer spherical symmetry and the circuit analysis, the present paper gives the calculated results of the voltages on each of several parts of malignant Tonsillar B-cells and Jurkat T lymphocytes when the first-order Gaussian pulses at different central frequency apposed on them. The relationship between the central frequency and the transmembrane voltages of plasma membrane is also given. The optimum frequency causing electroporation in nuclear envelope is given as well. The paper discusses the reasons of electroporation in membrane and DNA degradation in nuclear. The work provides a reference for usage of transient bipolar electric pulses in cancer treatment.
Apoptosis
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radiation effects
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B-Lymphocytes
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cytology
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radiation effects
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Cell Line, Tumor
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Cell Membrane
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physiology
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Electromagnetic Fields
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Electroporation
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methods
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Humans
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Jurkat Cells
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Nuclear Envelope
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pathology
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radiation effects
3.Electric pulse duration and windows effect of nuclear envelope.
Minghe WU ; Hongchun YANG ; Yi ZHANG ; Xlaoming ZHENG ; Gang ZENG ; Yafang TAN ; Yunqing SUN ; Heng ZOU
Journal of Biomedical Engineering 2011;28(3):602-606
Nuclear envelope voltages of T cells were analyzed with a lumped circuitry for cells in combination with frequency domain power density of Gaussian pulses and monocycle pulses. According to the differences in geometric and electric parameters between normal and malignant T cells, circuitry analysis was performed. Theoretical evaluations indicated that apoptosis of malignant T cells was of feasibility, which could be applied in cancer therapy. The evaluations were in accord with the published experimental findings.
Animals
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Apoptosis
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radiation effects
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Electric Stimulation
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Electromagnetic Fields
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Electrophysiology
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Fourier Analysis
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Humans
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Jurkat Cells
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Nuclear Envelope
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pathology
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radiation effects
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T-Lymphocytes
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cytology
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radiation effects
4. Clinical and genetic analysis of two pedigrees affected with aromatic L-amino acid decarboxylase deficiency
Yong WANG ; Zhongling KE ; Hongchun ZOU ; Mingxing LIN ; Mingqi QIU ; Weiyue GU ; Yanhui CHEN
Chinese Journal of Medical Genetics 2019;36(11):1085-1089
Objective:
To delineate the clinical and genetic features of two pedigrees affected with aromatic L-amino acid decarboxylase (AADC) deficiency.
Methods:
The clinical features, family history and results of genetic testing of 2 patients with AADC deficiency were retrospectively analyzed.
Results:
Both patients featured hypotension, developmental delay and oculogyric crisis during infancy.Genetic testing confirmed that they have respectively carried c. 714+ 4 (IVS6) A>T/c.175(exon2)G>A compound heterozygous variants and c. 714+ 4(IVS6)A>T homozygous variant.
Conclusion
The clinical manifestation of children with AADC deficiency may include hypotonia, developmental delay and paroxysmal oculogyric crisis. The combination of 3-O-methyldopa testing and variant analysis is not only very useful for early diagnosis, but also important for the evaluation of treatment effect and prognosis of the disease. Discovery of the novel variants has enriched the variant spectrum of AADC deficiency.