1.Discussion on the decoction and dosing methods of rhubarb root and rhizome in classical prescriptions
Zilin REN ; Changxiang LI ; Yuxiao ZHENG ; Xin LAN ; Ying LIU ; Yanhui HE ; Fafeng CHENG ; Qingguo WANG ; Xueqian WANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(1):48-54
The purpose of this paper is to explore the decoction and dosing methods of rhubarb root and rhizome in classical prescriptions and to provide a reference basis for the clinical use of rhubarb root and rhizome. By collating the relevant classical prescriptions of rhubarb root and rhizome in Shanghan Lun and Jingui Yaolüe, the relationship between its decoction and dosing methods and the syndrome was analyzed. The decoction of rhubarb root and rhizome in classical prescriptions can be divided into three categories: simultaneous decoction, decoction later, and other methods (impregnation in Mafei decoction, decoction with water from the well spring first taken in the morning, and pills). If it enters the blood level or wants to slow down, rhubarb root and rhizome should be decocted at the same time with other drugs. If it enters the qi level and wants to speed up, rhubarb root and rhizome should be decocted later. If it wants to upwardly move, rhubarb root and rhizome should be immersed in Mafei decoction. If it wants to suppress liver yang, rhubarb root and rhizome should be decocted with water from the well spring first taken in the morning. If the disease is prolonged, rhubarb root and rhizome should be taken in pill form. The dosing methods of rhubarb root and rhizome can be divided into five categories: draught, twice, three times, before meals, and unspecified. For acute and serious illnesses with excess of pathogenic qi and adequate vital qi, we choose draught. For gastrointestinal diseases, we choose to take the medicine twice. For achieving a moderate and long-lasting effect, we choose to take the medicine three times. If the disease is located in the lower part of the heart and abdomen, we choose to take it before meals. The use of rhubarb root and rhizome in clinical practice requires the selection of the appropriate decoction and dosing methods according to the location of the disease, the severity of the disease, the patient′s constitution, and the condition after taking the medicine.
2.Brief analysis on " Lijie and yellowish sweating" in Synopsis of Golden Chamber
Xin LAN ; Zilin REN ; Qi SHAO ; Yuxiao ZHENG ; Changxiang LI ; Fafeng CHENG ; Xueqian WANG ; Qingguo WANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(2):161-165
" Lijie and yellowish sweating" originates from the chapter on stroke and arthralgia diseases in Synopsis of Golden Chamber. Later generations typically interpret it as yellow fluid oozing from painful joints, a characteristic manifestation of arthralgia. In Western medicine, Lijie corresponds to diseases such as gouty arthritis, with its primary clinical manifestations being redness, swelling, heat, and painful joints, most often without yellow fluid discharge. Therefore, the interpretation of " Lijie and yellowish sweating" contradicts the clinical manifestations often observed in this disease. Thus, this article reinterprets the meaning of " Lijie and yellowish sweating" from the pathogenesis of " sweat exposure to water, as if water harms the heart" , combined with the viewpoints of other medical practitioners. Determining the meaning of " yellowish sweating" is crucial for understanding the pathogenesis of arthralgia and clarifying the relationship between arthralgia and yellowish sweating. ZHANG Zhongjing mentioned arthralgia and " yellowish sweating" together, not to differentiate between the two diseases but to emphasize the common pathogenesis of the two, namely, the cold and dampness injuring the heart, blood, and vessels. This paper proposes a new explanation of " Lijie and yellowish sweating" , which suggests that " yellowish sweating" is not confined to the joints but can be found all over the body. The pathogenesis of " Lijie and yellowish sweating" lies in the insufficiency of the liver and kidney and exogenous water dampness, leading to disharmony between nutrient qi and defensive qi and between yin and yang. Primary treatment should harmonize yingfen and weifen, as well as tonify and replenish the liver and kidney. The clinical selection of medicines can be considered Guizhi Decotion, a type of formula. The pathogenesis of " Lijie and yellowish sweating" is complex, and clinical treatment should be comprehensively considered to achieve the best therapeutic effect.
3.Genetic variation analyses of human papillomavirus 39 and prediction of T and B Cell epitopes
Yuxiao ZHANG ; Yijuan YANG ; Li WANG ; Sihan LAN ; Jing YU ; Jie HE ; Hongping ZHANG ; Min FENG
Chinese Journal of Experimental and Clinical Virology 2025;39(1):9-17
Objective:This study aimed to analyze the genetic variation of the human papillomavirus (HPV) type 39 genomes and to predict and screen the dominant T-cell and B-cell epitopes of the viral early proteins (E1, E2, E6, E7) and late proteins (L1, L2).Methods:A total of 70 full-length sequences of HPV39 variants were retrieved from the clinical samples and the National Center for Biotechnology Information (NCBI) to construct a phylogenetic tree, analyze genetic polymorphisms, and predict the physicochemical properties of the viral proteins. Next, T-cell and B-cell epitopes were predicted using IEDB and ABCpred, and potential dominant epitopes were further selected based on parameters such as the secondary structure of the epitope region, peptide flexibility, hydrophilicity, surface accessibility and antigenicity. Finally, a homology analysis of the potential dominant epitopes was performed with 12 high-risk HPV types.Results:HPV39 variants from different sources can be clustered into two lineages (A and B), each exhibiting distinct mutation patterns. The mutation rate was the highest in E7 and the lowest in E1 among the different viral genes. However, these nucleotide/amino acid mutations did not significantly impact the physicochemical properties of the viral proteins. After prediction and screening, 5 and 6 potential dominant B-cell epitopes were identified in both L1 and L2, respectively. E1, E2, E6, and E7 yielded 18, 10, 4, and 1 potential dominant HLA-I restricted T-cell epitopes, respectively. Additionally, E1, E2, and E6 yielded 7, 3, and 2 potential dominant HLA-II restricted T-cell epitopes, respectively. Homology analysis indicated that T-cell dominant epitopes in E1, E2, and E6, as well as B-cell epitopes in L2, showed high homology (93%-100%) with HPV68, HPV33, HPV45, and HPV59.Conclusions:Bioinformatics analysis and prediction revealed that HPV39 variants can be clustered into two main evolutionary branches, A and B, each exhibiting a specific mutation pattern. The viral proteins contain potential dominant T-cell and B-cell epitopes that can be further investigated, providing valuable theoretical support for the development of HPV39-related peptide-based vaccines and therapeutics.
4.Genetic variation analyses of human papillomavirus 39 and prediction of T and B Cell epitopes
Yuxiao ZHANG ; Yijuan YANG ; Li WANG ; Sihan LAN ; Jing YU ; Jie HE ; Hongping ZHANG ; Min FENG
Chinese Journal of Experimental and Clinical Virology 2025;39(1):9-17
Objective:This study aimed to analyze the genetic variation of the human papillomavirus (HPV) type 39 genomes and to predict and screen the dominant T-cell and B-cell epitopes of the viral early proteins (E1, E2, E6, E7) and late proteins (L1, L2).Methods:A total of 70 full-length sequences of HPV39 variants were retrieved from the clinical samples and the National Center for Biotechnology Information (NCBI) to construct a phylogenetic tree, analyze genetic polymorphisms, and predict the physicochemical properties of the viral proteins. Next, T-cell and B-cell epitopes were predicted using IEDB and ABCpred, and potential dominant epitopes were further selected based on parameters such as the secondary structure of the epitope region, peptide flexibility, hydrophilicity, surface accessibility and antigenicity. Finally, a homology analysis of the potential dominant epitopes was performed with 12 high-risk HPV types.Results:HPV39 variants from different sources can be clustered into two lineages (A and B), each exhibiting distinct mutation patterns. The mutation rate was the highest in E7 and the lowest in E1 among the different viral genes. However, these nucleotide/amino acid mutations did not significantly impact the physicochemical properties of the viral proteins. After prediction and screening, 5 and 6 potential dominant B-cell epitopes were identified in both L1 and L2, respectively. E1, E2, E6, and E7 yielded 18, 10, 4, and 1 potential dominant HLA-I restricted T-cell epitopes, respectively. Additionally, E1, E2, and E6 yielded 7, 3, and 2 potential dominant HLA-II restricted T-cell epitopes, respectively. Homology analysis indicated that T-cell dominant epitopes in E1, E2, and E6, as well as B-cell epitopes in L2, showed high homology (93%-100%) with HPV68, HPV33, HPV45, and HPV59.Conclusions:Bioinformatics analysis and prediction revealed that HPV39 variants can be clustered into two main evolutionary branches, A and B, each exhibiting a specific mutation pattern. The viral proteins contain potential dominant T-cell and B-cell epitopes that can be further investigated, providing valuable theoretical support for the development of HPV39-related peptide-based vaccines and therapeutics.
5.An analysis of the meaning of"diet as usual"in Treatise on Cold Pathogenic and Miscellaneous Diseases
Jialin CHENG ; Changxiang LI ; Zilin REN ; Xin LAN ; Yuxiao ZHENG ; Jinhua HAN ; Xueqian WANG
Journal of Beijing University of Traditional Chinese Medicine 2024;47(7):934-938
In Treatise on Cold Pathogenic and Miscellaneous Diseases,there are five articles concerning"diet as usual".When many doctors annotate such articles,they mostly interpret"diet as usual"as normal diet or because of stomach qi not affected by disease,ignoring the true significance of"diet as usual"and its role in clinical differential diagnosis.Through sorting out and summarizing the relevant provisions of"diet as usual",combining with the comments of Shuowen Jiezi and various ancient and modern doctors on the relevant provisions of"diet as usual"to explore the meaning behind it,the author believes that"diet as usual"can only be understood as"diet as before".Because it exists in a variety of diseases,it cannot be blindly extended to"normal diet"."Diet as usual"has two functions in clinical differential diagnosis:on the one hand,the stomach is empty,and no solid no drink blocks the qi movement,or there is stagnant heat in the stomach and intestines,but has not yet formed dry feces;on the other hand,when the middle jiao becomes one of the pathogenic factors of the disease,"diet as usual"can exclude the influence of the middle jiao.
6.Local Hyperthermia Affects Murine Contact Hypersensitivity around Elicitation Phase
Yan SUN ; Lan ZHANG ; Qian AN ; Yuxiao HONG ; Yan WU ; Xinghua GAO
Annals of Dermatology 2018;30(1):107-110
No abstract available.
Dermatitis, Contact
;
Hyperthermia, Induced
7.Effect of local hyperthermia on Langerhans cells in the skin of a mouse model of contact hypersensitivity
Yiru WANG ; Dongqing LU ; Lan ZHANG ; Li ZHANG ; Yakun WANG ; Xiaodong LI ; Yuxiao HONG ; Zhe LIU ; Xinghua GAO
Chinese Journal of Dermatology 2011;44(7):468-471
Objective To investigate the effect of local hyperthermia on the morphology and quantity of Langerhans cells (LCs)at challenged skin sites of a mouse model of contact hypersensitivity.Methods Sixty mice were equally divided into 3 groups to be treated with local hyperthermia (37℃,39℃,41℃and 43℃)for 20 minutes at sensitization sites on the back of mice 3 days before (pre-heat group),concurrently with (concurrent-heat group)or 2 days after(post-heat group)sensitization respectively.Five mice which remained unsensitized and untreated served as the controls.Five days after the sensitization,the mice were challenged on the dorsal surface of right ears.Two days after the elicitation,the right ears were resected and immunohistochemistry was performed to observe the morphology and determine the quantity of LCs at challenged sites.Results With the rise in temperature,the number of LCs in the epidermis of ear skin decreased in pre-heat group(321.83±41.81,251.12±16.29,191.41±28.7,128.33±77.61 per square millimeter at 37 ℃,39 ℃,41℃and 43℃,respectively,P<0.05),but increased gradually in the concurrent-heat group(309.08±84.69,355.33±11.38,405.5±55.25,438.16±99.56 per square millimeter at 37℃,39℃,41℃ and 43℃,respectively,P>0.05)and in the post-heat group(320.83±113.6,398.33±31.91,437.83±29.78,477.25±86.79 per square millimeter at 37℃,39 ℃,41℃and 43℃,respectively,P<0.01).The dendrites of LCs increased in number and length when the temperature lose from 37 ℃ to 41℃,but slightly declined at 43℃.Conclusions Local hyperthermia at sensitization sites could affect the morphology and density of LCs at challenged sites,and the effect is likely associated with the severity of contact hypersensitivity.
8.Simultaneous mutations in exon and intron of a novel human leukocyte antigen-B*3818 allele revealed by genomic sequence analysis
Yuxiao LAN ; Ziqian BAO ; Hongyan ZOU ; Shizheng JIN ; Zhen LI ; Weigang ZHU ; Lianghong CHENG
Chinese Journal of Laboratory Medicine 2010;33(3):241-244
Objective To analysis the genomic sequence of a novel human leukocyte antigen (HLA)-B*3818 allele.Methods Full length genomic sequence of an unknown HLA-B allele was cloned,followed by bi-directional sequencing and the specificity of the antigen coded by this novel allele was defined by microcytotoxicity assay.The frequency and haplotype of this novel allele was acquired by population census and parentage analysis.Results The full length genomic sequence of this novel HLA-B*3818 allele with accession number FJ561482 differs from HLA-B*380201 by two nucleotide changes in exon 4 and intron 5,respectively.One change is located at nt 660 in exon 4 where C→A alternation,which results in an amino acid substitution from Asp(GAC)to Glu(GAA)at codon 196.This alternation is a new single nucleotide polymorphism compared with all other HLA-B alleles.Another is located at genomic position 2133 in intron 5(A→C).Except for this substitution,the intron sequences of HLA-B*3818 allele are identical to those of other HLA-B*38 alleles including HLA-B*380101,B*380201 and B*3814.The serological specificity of HLA-B*3818 is B38 and the frequency of this new allele is less than 0.000 5 in Chinese Han population.The parentage analysis showed the haplotype of novel allele is A*030101-Cw*010201-B*3818-DRB1*1312-DOB1*060101.Conclusion The simultaneous mutations in exon and intron were found in the Hovel HLA-B*3818 allele,and so it can present more sequence information for studies and applications associated with HIA genes by analyzing the genomic sequences of novel HLA alleles.


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