1.Research progress of new-onset refractory status epilepticus
Jixian YANG ; Xinlian ZHOU ; Yunfeng YANG ; Chunyan LEI ; Lianmei ZHONG
Chinese Journal of Neurology 2021;54(6):607-611
New-onset refractory status epilepticus is a rare and special clinical manifestation with high mortality. About half of the patients have no clear cause. At present, the pathogenesis is unclear, and the treatment plan is controversial. In recent years, it has been found that inflammatory and immune responses of the body may be involved in the pathogenic process, and it is called “inflammatory-immune mediated epileptic encephalopathy” based on the perspective of pathogenesis. There have also been many treatment attempts based on the inflammatory and immunological mechanisms, some of which have achieved satisfactory results. However, most of them are based on the review of small sample cases, and relevant guidelines are still lacking at present. In this paper, the definition, etiology, pathogenesis, clinical manifestations and treatment of persistent status of new-onset refractory status epilepticus are reviewed.
2.The evaluation of SCI by TMS-MEP and its forensic significance.
Lei YANG ; Xing-Ben LIU ; Rong-Ting ZHU ; Xiao-Ming XU ; Chuan-Fei ZHENG ; Yu-Xin ZHOU
Journal of Forensic Medicine 2013;29(3):172-175
OBJECTIVE:
To find an objective and accurate examination for evaluation of spinal cord injury (SCI) in forensic clinical medicine.
METHODS:
The onset latency of cortex, peak latency of N1, central motor conduction time (CMCT) and wave width of the abductor pollicis brevis and the anterior tibialis were calculated by transcranial magnetic stimulation-motor evoked potential (TMS-MEP). The data of 68 patients suffered from SCI including 23 cervical levels and 45 thoracolumbar levels were collected and compared with that of 30 normal controls.
RESULTS:
In experimental group, when the muscle strength of the abductor pollicis brevis or the anterior tibialis decreased or disappeared, the onset latency of cortex, the peak latency of N1, and CMCT prolonged and the wave width broadened. And these indexes of grade 2 and 3 muscle strength in experimental group were higher than that in the control group (P < 0.05).
CONCLUSION
The TMS-MEP can determine directly and objectively the motor functional status of pyramidal tract of spinal cord in order to provide more accurate and objective evidences in forensic medicine.
Adolescent
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Adult
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Case-Control Studies
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Evoked Potentials, Motor/physiology*
;
Female
;
Forensic Medicine/methods*
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Humans
;
Male
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Middle Aged
;
Monitoring, Physiologic
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Motor Cortex/physiology*
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Muscle, Skeletal/physiology*
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Neural Conduction/physiology*
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Reaction Time/physiology*
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Spinal Cord Injuries/physiopathology*
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Transcranial Magnetic Stimulation
;
Young Adult
3.Application of copy number variation sequencing for prenatal diagnosis in women at an advanced maternal age.
Jing WANG ; Ling CHEN ; Cong ZHOU ; Li WANG ; Hanbing XIE ; Yuanyuan XIAO ; Hongmei ZHU ; Ting HU ; Zhu ZHANG ; Qian ZHU ; Xinlian CHEN ; Zhuying LIU ; Shanlin LIU ; He WANG ; Hongqian LIU
Chinese Journal of Medical Genetics 2019;36(6):533-537
OBJECTIVE:
To assess the value of copy number variation analysis based on next generation sequencing (CNV-seq) in prenatal diagnosis for women at advanced maternal age.
METHODS:
A prospective analysis was carried out for women who underwent amniocentesis at 18~36 weeks of gestation for fetal CNV-seq for advanced maternal age.
RESULTS:
For 1461 unrelated Chinese women with a singleton pregnancy, CNV-seq was performed for all samples successfully. The proportion of chromosomal abnormalities was 2.3% (34/1461), of which 44.12% were submicroscopic copy number variations (<5 Mb).
CONCLUSION
Pregnant women at an advanced maternal age should be informed for not only common trisomies but all pathogenic chromosomal aberrations. NGS was a sensitive and accurate approach for detecting CNVs.
Chromosome Aberrations
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Chromosome Disorders
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DNA Copy Number Variations
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Female
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Humans
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Maternal Age
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Pregnancy
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Prenatal Diagnosis
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Prospective Studies
4.Optimization of Processing Technology of Ginseng Radix et Rhizoma Rubra by HPLC Fingerprint Combined with Orthogonal Test
Xinlian HOU ; Lu HUANG ; Cheng PENG ; Yaning ZHU ; Bangjun CAI ; Qinmei ZHOU
China Pharmacy 2020;31(10):1228-1233
OBJECTIVE:To establish an HPLC fing erprint of Ginsen g Radix et Rhizoma Rubra ,and to optimize its processing technology. METHODS :HPLC method was adopted. The determination was performed on Waters SymmetryShield TM RP18 column with mobile phase consisted of acetonitrile-water (gradient elution )at the flow rate of 1.0 mL/min. The column temperature was set at 30 ℃,and the detection wavelength was 203 nm. The sample size was 10 μL. Using ginsenoside Rb1 as reference peak ,HPLC fingerprints of 10 batches of Ginseng Radix et Rhizoma Rubra was established. The similarity of them was evaluated by using Similarity Evaluation System of TCM Chromatogram Fingerprint (2012 A edition ) to confirm common peak. With steaming temperature,time and drying method as factors ,using the content of ginsenoside and fingerprint similarity as index ,the processing technology was optimized with L 16(43)orthogonal test design and verified. Cluster analysis was conducted with SPSS 19.0 statistical software of 10 batches of Ginseng Radix et Rhizoma Rubra and 3 batches of optimal processed sample. RESULTS :There were a total of 13 common peaks in the fingerprints of 10 batches of Ginseng Radix et Rhizoma Rubra. The similarity was more than 0.920;3 common peaks were identified ,such as ginsenoside Rg 1,ginsenoside Re ,ginsenoside Rb 1. The optimal processing technology included that steamed at 100 ℃ for 150 min,dried at 60 ℃. The results of validation test show that the contents of ginsenoside Rg 1,Re and Rb 1 were 0.26%-0.29%,0.17%-0.20%,0.47%-0.54%,and the similarity between 3 batches of Ginseng Radix et Rhizome Rubra optimal processed sample and the control fingerprints was more than 0.970. The results of cluster analysis showed that 10 batches of Gimseng Radix et Rhizoma Rubra and 3 batches of optimal processed sample could be clustered into two categories;HS3-HS10 could be clustered into one category ,and 3 batches of optimal processed sample ,HS1 and HS 2 be clustered into one category. CONCLUSIONS :Established fingerprint can be used for the optimization of processing technology of Gimseng Radix et Rhizoma Rubra ,and characterize the correlation between f luctuation of technology parameter and quality of medicinal material;the optimal processing technology is reasonable an d