1.Vulnerability of medicinal plant Lamiophlomis rotata under future climate changes
Hong-chao WANG ; Zheng-wei XIE ; Qi-ao MA ; Tie-lin WANG ; Guang YANG ; Xiao-ting XU ; Kai SUN ; Xiu-lian CHI
Acta Pharmaceutica Sinica 2024;59(10):2871-2879
italic>Lamiophlomis rotata is an important medicinal plant species endemic to the Tibetan Plateau, which is prone to strong climate change impacts on its habitable range due to the high sensitivity of the Tibetan Plateau to climate change. Accurate quantification of species vulnerability to climate change is essential for assessing species extinction risk and developing effective conservation strategies. Therefore, we carried out the
2.ABO*A2.08 Subtype Allele Identification and Protein Structure Analysis in Newborns
Xin LIU ; Lian-Hui WANG ; Jin SHU ; Zi-Heng XU ; Xiu-Yun XU
Journal of Experimental Hematology 2024;32(1):225-230
Objective:To study the serological characteristics of ABO*A2.08 subtype and explore its genetic molecular mechanism.Methods:ABO blood group identification was performed on proband and her family members by routine serological methods.ABO genotyping and sequence analysis were performed by polymerase chain reaction-sequence specific primer(PCR-SSP),and direct sequencing of PCR products from exons 6 and 7 of ABO gene were directly sequenced and analyzed.The effect of gene mutation in A2.08 subtype on structural stability of GTA protein was investigated by homologous protein conserved analysis,3D molecular modeling and protein stability prediction.Results:The proband's serological test results showed subtype Ax,and ABO genotyping confirmed that the proband's genotype was ABO*A207/08.Gene sequencing of the proband's father confirmed the characteristic variation of c.539G>C in the 7th exon of ABO gene,leading to the replacement of polypeptide chain p.Arg180Pro(R180P).3D protein molecular modeling and analysis suggested that the number of hydrogen bonds of local amino acids in the protein structure was changed after the mutation,and protein stability prediction showed that the mutation had a great influence on the protein structure stability.Conclusion:The mutation of the 7th exon c.539G>C of ABO gene leads to the substitution of polypeptide chain amino acid,which affects the structural stability of GTA protein and leads to the change of enzyme activity,resulting in the A2.08 phenotype.The mutated gene can be stably inherited.
3.Retrospective Analysis of Irregular Antibodies Causing Hemolytic Disease of the Fetus and Newborn in Jiangxi Province.
Xin LIU ; Fang LE ; Lian-Hui WANG ; Jin SHU ; Xiu-Yun XU
Journal of Experimental Hematology 2023;31(1):215-220
OBJECTIVE:
To analyze the characteristics of antibody-specific distribution, laboratory detection results of hemolytic disease of the fetus and neonatal(HDFN) caused by irregular blood group antibodies other than ABO, and its correlation with the clinical situation.
METHODS:
The non-ABO-HDFN cases in our hospital from October 2012 to December 2021 were selected as the research objects, and the cases diagnosed with ABO-HDFN in the same period were randomly selected as the control group, and the data of antibody specific distribution, total bilirubin, direct antibodies, maternal history, age of the children, the presence or absence of combined ABO-HDFN, and whether to exchange/transfuse blood were retrospectively analyzed. The characteristics of non-ABO-HDFN in Jiangxi province were analyzed.
RESULTS:
The detection rate of non-ABO-HDFN in Jiangxi province increased. Among 187 non ABO-HDFN cases, the highest percentage of Rh-HDFN was detected (94.6%). Compared with the control group of ABO-HDFN, the non-ABO-HDFN had higher mean integral value of direct antibody, higher peak total bilirubin, and longer duration. Anti-M-HDFN may have severe disease but the direct antibody weak positive/negative, it was easy missed in clinical and delayed the treatment. There is no correlation between the specificity of irregular antibodies, the sex of the child, the mother's previous childbirth history, the presence or absence of combined ABO-HDFN and the need for blood exchange/transfusion(P>0.05).
CONCLUSION
The irregular antibodies of causing non ABO-HDFN in Jiangxi area are mainly Rh blood group system, followed by MNS blood group system. Understanding the characteristics of HDFN disease, serological features and the correlation with clinical indexes will help to detect and treat non ABO-HDFN in time and reduce the risk of complications.
Child
;
Female
;
Humans
;
Infant, Newborn
;
ABO Blood-Group System
;
Blood Group Antigens
;
Erythroblastosis, Fetal
;
Fetus
;
Hematologic Diseases/complications*
;
Hemolysis
;
Isoantibodies
;
Retrospective Studies
4.Effects of Zishen Yutai Pills on in vitro Fertilization-Embryo Transfer Outcomes in Patients with Diminished Ovarian Reserve: A Prospective, Open-Labeled, Randomized and Controlled Study.
Xiu-Fang LI ; Zhong-Qing WANG ; Hai-Yan XU ; Hong LIU ; Yan SHENG ; Jin XU ; Yuan-Mei LI ; Fang LIAN
Chinese journal of integrative medicine 2023;29(4):291-298
OBJECTIVE:
To explore the effects of Zishen Yutai Pills (ZYPs) on the quality of oocytes and embryos, as well as pregnancy outcomes in patients with diminished ovarian reserve (DOR) receiving in vitro fertilization-embryo transfer (IVF-ET). The possible mechanisms, involving the regulation of bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9), were also investigated.
METHODS:
A total of 120 patients with DOR who underwent their IVF-ET cycle were randomly allocated to 2 groups in a 1:1 ratio. The patients in the treatment group (60 cases) received ZYPs from the mid-luteal phase of the former menstrual cycle by using gonadotropin-releasing hormone (GnRH) antagonist protocol. The patients in the control group (60 cases) received the same protocol but without ZYPs. The primary outcomes were the number of oocytes retrieved and high-quality embryos. Secondary outcomes included other oocyte or embryo indices as well as pregnancy outcomes. Adverse events were assessed by comparison of the incidence of ectopic pregnancy, pregnancy complications, pregnancy loss, and preterm birth. Contents of BMP15 and GDF9 in the follicle fluids (FF) were also quantified with enzyme-linked immunosorbent assay.
RESULTS:
Compared with the control group, the numbers of oocytes retrieved and high-quality embryos were significantly increased in the ZYPs group (both P<0.05). After treatment with ZYPs, a significant regulation of serum sex hormones was observed, including progesterone and estradiol. Both hormones were up-regulated compared with the control group (P=0.014 and 0.008), respectively. No significant differences were observed with regard to pregnancy outcomes including implantation rates, biochemical pregnancy rates, clinical pregnancy rates, live birth rates, and pregnancy loss rates (all P>0.05). The administration of ZYPs did not increase the incidence of adverse events. The expressions of BMP15 and GDF9 in the ZYPs group were significantly up-regulated compared with the control group (both P<0.05).
CONCLUSIONS
ZYPs exhibited beneficial effects in DOR patients undergoing IVF-ET, resulting in increments of oocytes and embryos, and up-regulation of BMP15 and GDF9 expressions in the FF. However, the effects of ZYPs on pregnancy outcomes should be assessed in clinical trials with larger sample sizes (Trial reqistration No. ChiCTR2100048441).
Infant, Newborn
;
Pregnancy
;
Female
;
Humans
;
Fertilization in Vitro/methods*
;
Ovarian Reserve
;
Prospective Studies
;
Premature Birth
;
Embryo Transfer/methods*
;
Ovulation Induction/methods*
;
Gonadotropin-Releasing Hormone/therapeutic use*
5.Study on the application of model transfer technology in the extraction process of Xiao'er Xiaoji Zhike oral liquid
Xiu-hua XU ; Lei NIE ; Xiao-bo MA ; Xiao-qi ZHUANG ; Jin ZHANG ; Hai-ling DONG ; Wen-yan LIANG ; Hao-chen DU ; Xiao-mei YUAN ; Yong-xia GUAN ; Lian LI ; Hui ZHANG ; Xue-ping GUO ; Heng-chang ZANG
Acta Pharmaceutica Sinica 2023;58(10):2900-2908
The modernization and development of traditional Chinese medicine has led to higher standards for the quality of traditional Chinese medicine products. The extraction process is a crucial component of traditional Chinese medicine production, and it directly impacts the final quality of the product. However, the currently relied upon methods for quality assurance of the extraction process, such as simple wet chemical analysis, have several limitations, including time consumption and labor intensity, and do not offer precise control of the extraction process. As a result, there is significant value in incorporating near-infrared spectroscopy (NIRS) in the production process of traditional Chinese medicine to improve the quality control of the final products. In this study, we focused on the extraction process of Xiao'er Xiaoji Zhike oral liquid (XXZOL), using near-infrared spectra collected by both a Fourier transform near-infrared spectrometer and a portable near-infrared spectrometer. We used the concentration of synephrine, a quality control index component specified by the pharmacopoeia, to achieve rapid and accurate detection in the extraction process. Moreover, we developed a model transfer method to facilitate the transfer of models between the two types of near-infrared spectrometers (analytical grade and portable), thus resolving the low resolution, poor performance, and insufficient prediction accuracy issues of portable instruments. Our findings enable the rapid screening and quality analysis of XXZOL onsite, which is significant for quality monitoring during the traditional Chinese medicine production process.
6.Study on BW.12 Subtype Caused by c.278C>T Mutation in Exon 6 of ABO Gene.
Xin LIU ; Lian-Hui WANG ; Xiu-Yun XU ; Jin SHU ; Fang LE
Journal of Experimental Hematology 2022;30(5):1557-1561
OBJECTIVE:
To investigate the effect of ABO gene α-1,3-D galactosyl transferase mutation on B antigen expression and its molecular mechanism.
METHODS:
The proband and their family members were identified by routine serological methods, and ABO genotyping and sequence analysis were performed by polymerase chain reaction-sequence specificity (PCR-SSP) and direct sequencing of PCR products from exon 1-7 of ABO gene. The 3D structural simulation of mutant proteins was performed by bioinformatics software. The effect of gene mutation on protein structural stability was analyzed.
RESULTS:
The proband and his family members were subtype B. ABO genotyping indicated that the proband's genotype was Bw12/O. Gene sequencing results confirmed the presence of ABO*BW.12 characteristic variation c.278C>T in the 6th exon of allele B, leading to the replacement of polypeptide chain p.Pro93Leu. The 3D structure simulation analysis of the protein showed that the hydrogen bonds and water molecules connected to the protein changed after amino acid substitution. The family investigation found that the grandfather, father, uncle and brother of the proband all carried the same ABO*BW.12 allele.
CONCLUSION
The mutation of the 6th exon c.278C>T of ABO gene led to the substitution of polypeptide chain amino acids, which affected the stability of α-1,3-D galactosyl transferase protein, resulting in the change of enzyme activity, and the Bw.12 phenotype, which can be stably inherited.
ABO Blood-Group System/genetics*
;
Alleles
;
Amino Acids/genetics*
;
Animals
;
Base Sequence
;
Exons
;
Genotype
;
Male
;
Mutant Proteins/genetics*
;
Mutation
;
Phenotype
;
Water
7.Identification and Molecular Biology of Variant D Blood Group of RHD*95A Genotype.
Xin LIU ; Lian-Hui WANG ; Zi-Heng XU ; Jin SHU ; Meng-Yuan DONG ; Xiao-Yan TONG ; Xiu-Yun XU
Journal of Experimental Hematology 2022;30(6):1839-1844
OBJECTIVE:
To explore the molecular biology of D variant blood group with RHD*95A genotype and the genetic mechanism of its generation.
METHODS:
A total of 6 samples from 3 generations of a family were analyzed. RHD blood group was identified by saline test tube and microcolumn gel card method. 10 exons of RHD gene were amplified by Polymerase Chain Reaction-Sequence Specific Primer (PCR-SSP) and analyzed by direct sequencing. Homology modeling was used to compare the structural differences between mutant RHD protein and wild-type RHD protein.
RESULTS:
The proband was identified as D variant by serological identification, RHD gene sequencing directly detected a c. 95 c > A mutation in exon 1 that leads to encoding the 32-bit amino acids by threonine Thr (T) into aspartic acid Asn (N), the rest of the exon sequences were normal compared with the normal RHD*01 gene. In the family, the proband's father, grandmather and uncle were all carried the same RHD*95A allele. Protein modeling results suggested that the hydrogen chain connected to the 32nd amino acid residue was changed after p.T32N mutation, which affected the structural stability of RHD protein.
CONCLUSION
The first genetic lineage of the RHD*95A gene was identified in a Chinese population. The c.95C>A mutation in RHD gene was found in the family, which resulted in reduced expression of RHD antigen and showed D variant, the mutation could be stably inheritable. Gene identification and protein structure analysis of D variant population is helpful to explore the molecular mechanism of its formation and ensure the safety of blood transfusion.
Humans
;
Blood Group Antigens
8.Immunogenicity of Whole
Shi Qi XIAO ; Da XU ; Hong Yang DUAN ; Xue Ting FAN ; Gui Lian LI ; Wen ZHANG ; Ma Chao LI ; Na HAN ; Xin Yao LI ; Na LI ; Li Lan ZHAO ; Xiu Qin ZHAO ; Kang Lin WAN ; Hai Can LIU ; Wen Hai FENG
Biomedical and Environmental Sciences 2021;34(7):528-539
Objectives:
To evaluate the immunogenicity of
Methods:
Protein extracts from
Results:
Immunization with
Conclusion
This is the advanced study to investigate the immunogenicity of
Animals
;
Antibodies, Bacterial/immunology*
;
Antigens, Bacterial/immunology*
;
Bacterial Proteins/immunology*
;
Cross Reactions
;
Cytokines/immunology*
;
Female
;
Genome, Bacterial
;
Immunoglobulin G/immunology*
;
Immunoglobulin M/immunology*
;
Macrophages/immunology*
;
Mice, Inbred BALB C
;
Mycobacterium avium Complex/immunology*
;
Mycobacterium tuberculosis/immunology*
;
Tuberculosis Vaccines/administration & dosage*
;
Whole Genome Sequencing
9.Clinical practice guidelines for modified radical mastectomy of breast cancer: Chinese Society of Breast Surgery (CSBrs) practice guidelines 2021.
De-Chuang JIAO ; Jiu-Jun ZHU ; Li QIN ; Xu-Hui GUO ; Ya-Jie ZHAO ; Xiu-Chun CHEN ; Cheng-Zheng WANG ; Zhen-Duo LU ; Lian-Fang LI ; Shu-De CUI ; Zhen-Zhen LIU
Chinese Medical Journal 2021;134(8):895-897
10.Bendamustine treatment of Chinese patients with relapsed indolent non-Hodgkin lymphoma: a multicenter, open-label, single-arm, phase 3 study.
Yuan-Kai SHI ; Xiao-Nan HONG ; Jian-Liang YANG ; Wei XU ; Hui-Qiang HUANG ; Xiu-Bin XIAO ; Jun ZHU ; Dao-Bin ZHOU ; Xiao-Hong HAN ; Jian-Qiu WU ; Ming-Zhi ZHANG ; Jie JIN ; Xiao-Yan KE ; Wei LI ; De-Pei WU ; Shen-Miao YANG ; Xin DU ; Yong-Qian JIA ; Ai-Chun LIU ; Dai-Hong LIU ; Zhi-Xiang SHEN ; Lian-Sheng ZHANG ; Leonard JAMES ; Edward HELLRIEGEL
Chinese Medical Journal 2021;134(11):1299-1309
BACKGROUND:
Bendamustine was approved in China on May 26th, 2019 by the National Medical Product Administration for the treatment of indolent B-cell non-Hodgkin lymphoma (NHL). The current study was the registration trial and the first reported evaluation of the efficacy, safety, and pharmacokinetics of bendamustine in Chinese adult patients with indolent B-cell NHL following relapse after chemotherapy and rituximab treatment.
METHODS:
This was a prospective, multicenter, open-label, single-arm, phase 3 study (NCT01596621; C18083/3076) with a 2-year follow-up period. Eligible patients received bendamustine hydrochloride 120 mg/m2 infused intravenously on days 1 and 2 of each 21-day treatment cycle for at least six planned cycles (and up to eight cycles). The primary endpoint was the overall response rate (ORR); and secondary endpoints were duration of response (DoR), progression-free survival (PFS), safety, and pharmacokinetics. Patients were classified according to their best overall response after initiation of therapy. Proportions of patients in each response category (complete response [CR], partial response [PR], stable disease, or progressive disease) were summarized along with a two-sided binomial exact 95% confidence intervals (CIs) for the ORR.
RESULTS:
A total of 102 patients were enrolled from 20 centers between August 6th, 2012, and June 18th, 2015. At the time of the primary analysis, the ORR was 73% (95% CI: 63%-81%) per Independent Review Committee (IRC) including 19% CR and 54% PR. With the follow-up period, the median DoR was 16.2 months by IRC and 13.4 months by investigator assessment; the median PFS was 18.6 months and 15.3 months, respectively. The most common non-hematologic adverse events (AEs) were gastrointestinal toxicity, pyrexia, and rash. Grade 3/4 neutropenia was reported in 76% of patients. Serious AEs were reported in 29 patients and five patients died during the study. Pharmacokinetic analysis indicated that the characteristics of bendamustine and its metabolites M3 and M4 were generally consistent with those reported for other ethnicities.
CONCLUSION:
Bendamustine is an active and effective therapy in Chinese patients with relapsed, indolent B-cell NHL, with a comparable risk/benefit relationship to that reported in North American patients.
CLINICAL TRIAL REGISTRATION
ClinicalTrials.gov, No. NCT01596621; https://clinicaltrials.gov/ct2/show/NCT01596621.
Adult
;
Antineoplastic Combined Chemotherapy Protocols
;
Bendamustine Hydrochloride/therapeutic use*
;
China
;
Humans
;
Lymphoma, Non-Hodgkin/drug therapy*
;
Neoplasm Recurrence, Local/drug therapy*
;
Prospective Studies
;
Rituximab/therapeutic use*

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