1.Research progress in MRI-based radiomics for predicting the efficacy of transcatheter arterial chemoembolization for hepatocellular carcinoma
Journal of Interventional Radiology 2024;33(1):90-94
Hepatocellular carcinoma(HCC)is the fifth most common malignant tumor in the world and it is characterized by clinically insidious onset and high mortality rate.As a preferred treatment method for patients with moderate and advanced HCC,transcatheter arterial chemoembolization(TACE)has many advantages such as reducing tumor load and relieving patient pain,but the selection of the patients who may get benefits from TACE treatment remains a challenging issue.Therefore,it is essential to predict the efficacy of TACE.At present,various methods including clinical laboratory testing,imaging method,genetic-molecular method,etc.have been used to predict the therapeutic efficacy of TACE.Imaging prediction has the advantages of high visualization and strong interpretability,and MRI functional imaging sequence can better demonstrate the details of the lesion.Radiomics,as an emerging imaging field,can complement or even replace tumor biopsy by quantifying the tumor phenotypic variation.This paper aims to make a review concerning the correlation between the imaging radiomics and the prediction of TACE efficacy in patients with HCC,and to discuss whether MRI imaging radiomics can be used as a valid and reproducible method for predicting TACE efficacy for HCC.(J Intervent Radiol,2024,32:90-94)
2.Application of copy number variation sequencing in patients with intellectual disability/developmental delay and autistic spectrum disorder.
Jie LEI ; Gang ZHAO ; Yanke HUANG ; Min LONG ; Wei LI ; Xi DENG ; Zihan XIU ; Yanwei XIAO ; Sifan ZENG ; Jing ZHANG
Chinese Journal of Medical Genetics 2023;40(3):308-316
OBJECTIVE:
To assess the value of copy number variation sequencing (CNV-seq) for the diagnosis of children with intellectual disability (ID), developmental delay (DD), and autistic spectrum disorder (ASD).
METHODS:
Forty patients with ID/DD/ASD referred to Nanshan Maternity and Child Health Care Hospital from September 2018 to January 2022 were enrolled. G-banded karyotyping analysis was carried out for the patients. Genomic DNA was extracted from peripheral blood samples and subjected to CNV-Seq analysis to detect chromosome copy number variations (CNVs) in such patients. ClinVar, DECIPHER, OMIM and other database were searched for data annotation.
RESULTS:
Among the 40 patients (including 30 males and 10 females), 16, 15 and 6 were diagnosed with ID, DD and ASD, respectively. One patient had combined symptoms of ID and DD, whilst the remaining two had combined ID and ASD. Four patients were found with abnormal karyotypes, including 47,XY,+mar, 46,XY,inv(8)(p11.2q21.2), 46,XX,del(5)(p14) and 46,XX[76]/46,X,dup(X)(p21.1q12). Chromosome polymorphism was also found in two other patients. CNV-seq analysis has detected 32 CNVs in 20 patients (50.0%, 20/40). Pathogenic CNVs were found in 10 patients (25.0%), 15 CNVs of uncertain clinical significance were found in 12 patients (30.0%), and 7 likely benign CNVs were found in 4 patients (10.0%).
CONCLUSION
Chromosome CNVs play an important role in the pathogenesis of ID/DD/ASD. CNV-seq can detect chromosomal abnormalities including microdeletions and microduplications, which could provide a powerful tool for revealing the genetic etiology of ID/DD/ASD patients.
Pregnancy
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Child
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Male
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Humans
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Female
;
DNA Copy Number Variations
;
Intellectual Disability/genetics*
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Autism Spectrum Disorder/genetics*
;
Developmental Disabilities/genetics*
;
Abnormal Karyotype
3.Study on quality grade standard of premature Forsythia suspensa
Zhijiang WEI ; Xiaohong REN ; Ye ZHANG ; Xi DAI ; Ran GUO ; Zihan ZHAO ; Lulu LIU ; Yong LIU ; Weidong LI
China Pharmacy 2022;33(7):842-847
OBJECTIVE To study the quality grade stand ard of the premature Forsythia suspensa . METHODS A total of 138 batches of premature F. suspensa were collected from the main producing areas of F. suspensa in China. According to 2020 edition of Chinese Pharmacopoeia ,the contents of impurities ,moisture,ethanol-soluble extract ,volatile oil ,forsythin and forsythoside A in the premature F. suspense were determined ,and the qualified samples were screened. AHP-PCA mixed weighting method was used to give comprehensive weight to the indicators (except for the limit of impurity ). The comprehensive score of the samples was calculated. The suggestions on the quality grade division of premature F. suspensa were put forward according to cluster analysis of K-mean value. RESULTS & CONCLUSIONS The contents of impurities ,moisture,ethanol-soluble extract ,volatile oil ,forsythin and forsythoside A in the premature F. suspense were 0-7.80%,1.60%-8.18%,13.13%-61.60%,0.21%-3.47%,0.02%-2.15% and 0.79%-14.04%,respectively;average contents of them were 1.24%,4.97%,34.88%,2.01%,0.42%,6.86%,respectively. Totally 47 batches of 138 batches were qualified in all indexes. It is suggested that the quality grade of the premature F. suspense can be divided into three grades :in first grade of F. suspense ,the contents of volatile oil ,forsythin,forsythoside A , ethanol-soluble extract and moisture were ≥2.40%,≥0.59%,≥8.34%,≥38.66% and ≤4.99%,respectively;in second grade of F. suspense ,the contents of above indicators were ≥2.26%,≥0.41%,≥7.47%,≥32.58% and ≤5.33%,respectively;in third grade of F. suspense ,the contents of above indicators were ≥2.15%,≥0.32%,≥4.60%,≥31.52% and≤7.23%,respectively.
4. Clinical application of horizontal transection of the triangular flap for epicanthal plasty
Zihan XU ; Ronghui FAN ; Shengzhi MU ; Zhenxin ZHANG ; Benfeng WANG
Chinese Journal of Plastic Surgery 2018;34(9):744-747
Obiective:
To explore the method and clinical effect of epicanthal plasty.
Methods:
Transverse incision of epicanthus was applied on the horizontal line of the epicanthus to separate and release the orbicularis oculi muscle and the fibrous tissue and moderately remove the abnormal orbicularis oculi muscle. The redundant triangular flap under the incision was removed, and the superficial ligament of epicanthus was sutured and fixed to the dorsal nasal fascia with 1 stitch, so as to achieve correcting the epicanthus.
Results:
The epicanthus of the 121 patients was corrected after the surgery with their lacrimal caruncle exposed. The appearance of the endocanthion is pleasing, the skin of the endocanthion is smooth, the scar is invisible, and the oculi rimae is lengthened 1 to 3 mm.
Conclusions
The operation has achieved a satisfactory effect. Therefore, the horizontal transection to remove the triangular flap is applicable for most epicanthus due to its simplicity and practicality, as well as the invisible scar and simultaneous manipulation with other operations. These features might be significant for a wider clinical application.
5.The effective parts of liangxue tongyu prescription on cooling-blood and activating-blood and analysis of chemical constituents by HPLC-MS and GC-MS.
Xi HUANG ; Guochun LI ; Lian YIN ; Zihan ZHANG ; Yixin LIANG ; Haibo CHEN
Acta Pharmaceutica Sinica 2015;50(1):86-93
In order to clarify material basis of effective parts of liangxue tongyu prescription, blood-heat and blood-stasis rat model induced by dry yeast was established. The changes of rectal temperature, blood viscosity and plasma viscosity were used to evaluate the cooling-blood and activating-blood effects of liangxue tongyu prescription and its parts. Compared with the model group, the extract from liangxue tongyu prescription, its volatile oil and n-butanol part could significantly reduce rectal temperature (P<0.01), and also reduce blood viscosity and plasma viscosity to various degrees (P<0.01 or P<0.05). So volatile oil and n-butanol part were primarily identified as effective parts of liangxue tongyu prescription. By using GC-MS with normalization method of area to analyze volatile oil of liangxue tongyu prescription, 70 compounds were identified, accounting for about 92.54%, mainly as β-asarone, paeonol, α-asarone and shyobunone. 42 compounds such as peony glycosides, tannins, and iridoid glycosides were identified by HPLC-MS techniques and standard comparison. The study determined the effective parts of liangxue tongyu prescription and clarified the chemical composition providing the foundation for further studies on material basis of liangxue tongyu prescription.

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