1.Identification of banana ADA1 gene family members and their expression profiles under biotic and abiotic stresses.
Qiqi ZHAO ; Wenhui REN ; Huifei ZHU ; Qiuzhen WU ; Chunyu ZHANG ; Xiaoqiong XU ; Binbin LUO ; Yuji HUANG ; Yukun CHEN ; Yuling LIN ; Zhongxiong LAI
Chinese Journal of Biotechnology 2024;40(1):190-210
The Spt-Ada-Gcn5-acetyltransferase (SAGA) is an ancillary transcription initiation complex which is highly conserved. The ADA1 (alteration/deficiency in activation 1, also called histone H2A functional interactor 1, HFI1) is a subunit in the core module of the SAGA protein complex. ADA1 plays an important role in plant growth and development as well as stress resistance. In this paper, we performed genome-wide identification of banana ADA1 gene family members based on banana genomic data, and analyzed the basic physicochemical properties, evolutionary relationships, selection pressure, promoter cis-acting elements, and its expression profiles under biotic and abiotic stresses. The results showed that there were 10, 6, and 7 family members in Musa acuminata, Musa balbisiana and Musa itinerans. The members were all unstable and hydrophilic proteins, and only contained the conservative SAGA-Tad1 domain. Both MaADA1 and MbADA1 have interactive relationship with Sgf11 (SAGA-associated factor 11) of core module in SAGA. Phylogenetic analysis revealed that banana ADA1 gene family members could be divided into 3 classes. The evolution of ADA1 gene family members was mostly influenced by purifying selection. There were large differences among the gene structure of banana ADA1 gene family members. ADA1 gene family members contained plenty of hormonal elements. MaADA1-1 may play a prominent role in the resistance of banana to cold stress, while MaADA1 may respond to the Panama disease of banana. In conclusion, this study suggested ADA1 gene family members are highly conserved in banana, and may respond to biotic and abiotic stress.
Musa/genetics*
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Phylogeny
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Fungal Proteins
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Cell Nucleus
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Histones
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Stress, Physiological/genetics*
2.Deep mining of healthy blood metagenomics and phageomes
Lin ZHU ; Qiqi WANG ; Yulian XU ; Yang HUANG ; Zhan GAO ; Miao HE
Chinese Journal of Blood Transfusion 2024;37(10):1091-1100
Objective To explore the presence and potential interactions of microbes and bacteriophages in the blood of healthy individuals by employing in-depth bioinformatics mining to analyze the structure and function of the blood microbi-ome ecosystem.Methods Blood plasma samples from 1 600 voluntary blood donors collected at Mianyang Central Blood Station from 2012 to 2018 were subjected to DNA extraction and library construction.High-throughput sequencing was con-ducted using the Illumina HiSeq 4500 platform,followed by extensive bioinformatics analysis.Microbial abundance in blood samples was analyzed using metagenomic analysis software such as Bowtie2,Trimmomatic and Kraken.Subsequent phage-ome analysis included sequence quality control,assembly,identification,clustering and functional annotation using software such as Megahit,geNomad,CheckV and eggNOG-mapper.Phylogenetic trees,species annotation and host analysis and pre-diction for the identified blood bacteriophages were constructed using iTOL,BLAST and PhaBOX software.Results Met-agenomic sequencing identified microbes across 36 phyla,151 orders,338 families,338 genera and 3 757 species in the plasma samples.At the species level,the most abundant species included Bacillus cereus,Lactobacillus murinus,L.johnso-nii,Faecalibacterium prausnitzii,B.thuringiensis,L.reuteri,Cutibacterium acnes,Dietzia sp.JS16-p6b,Mycoplasma hyo-rhinis,M.hyopneumoniae and Staphylococcus aureus.Through phageome analysis,202 viral Operational Taxonomic Units(vOTUs)were identified,revealing 24 types of bacteriophages.Host analysis using the viral host database completed mat-ches for 15 potential bacteriophage hosts,including Stenotrophomonas maltophilia,Rhodoferax lacus,Pseudoalteromonas marina,Thalassotalea loyana,Vibrio alginolyticus,V.tasmaniensis,V.vulnificus,Pseudomonas sp.,Agrobacterium sp.ST15.13/040,Enterococcus gallinarum,Flavobacterium sp.,Thermotoga naphthophila,Chryseobacterium sp.RU33C,L.acidipiscis and Neisseria mucosa.Conclusion The study of the healthy human blood microbiome and phageome reveals the presence of microbes and phages in the blood,which may have profound impacts on human health.
3.Impact of IgM deposition level on the ultrastructure and the clinicopathological features of primary IgA nephropathy patients
Lu XU ; Jingjing ZHANG ; Qiqi YAN ; Wenting XU ; Huai LI ; Deguang WANG
The Journal of Practical Medicine 2024;40(22):3172-3178
Objective To investigate the correlations between IgM deposition levels,glomerular ultra-structural and clinicopathological features in primary IgA nephropathy(IgAN).Methods Data from 155 IgAN patients were categorized into three cohorts by IgM deposition levels.We assessed differences in glomerular ultra-structure,clinical indices,MEST-C scores,and factors influencing IgM deposition levels.Results The marked IgM cohort showed higher urinary protein,IgG deposition,and T scores,with reduced serum albumin and lympho-cyte counts(P<0.05).Logistic regression identified FPE and T score as independent factors for IgM deposition.Conclusions IgM deposition correlates with FPE severity in IgAN,suggesting its utility in assessing renal dam-age and guiding treatment strategies.
4.Application of melatonin-supplemented in vitro maturation technology for human oocytes during COH cycle
Yu REN ; Xingxing HAN ; Qiqi ZHANG ; Lu LIU ; Xiaofeng XU ; Zhiguo ZHANG ; Huijuan ZOU
Acta Universitatis Medicinalis Anhui 2024;59(6):983-988
Objective To compare the early embryonic developmental potential and clinical outcomes of oocytes matured in vivo and those matured by modified in vitro maturation(LVM)technology during the same controlled ovarian hyperstimulation(COH)cycle,and to explore the clinical application of melatonin-supplemented IVM technology.Methods 159 patients were recruited into the study.920 mature oocytes were collected during their COH cycles processed for conventional IVF/ICSI protocols,while 1 283 immature oocytes from the same cycles were matured in a melatonin-supplemented IVM medium before ICSI was performed.A retrospective analysis was conducted to compare the impact of conventional assisted reproductive technology and improved IVM technology on the outcomes of assisted reproductive therapy and pregnancy outcomes.Results Compared with mature oocytes collected from COH cycles treated with conventional IVF/ICSI,oocytes promoted by improved melatonin-supple-mented IVM technology had a lower rate of high-quality blastocyst formation.However,after embryo transfer,there was no significant difference in the clinical outcomes of mature oocytes obtained through two methods,including clinical pregnancy rate,full-term birth rate,neonatal length,and neonatal Apgar score.Conclusion The applica-tion of melatonin-supplemented IVM significantly increases the utilization of immature oocytes collected from COH cycles,improving the pregnancy outcomes of patients assisted by assisted reproductive technology.
5.Effect of electronic moxibustion on the volume of hippocampal subregion in patients with amnestic mild cognitive impairment
Jiao SHI ; Xingjie LI ; Qiqi LIU ; Jun LIU ; Xu YUAN ; Shangjie CHEN
Chinese Journal of Tissue Engineering Research 2024;28(20):3176-3181
BACKGROUND:Current studies have shown that electronic moxibustion can improve memory function in amnestic mild cognitive impairment;however,its mechanism of action needs to be further investigated.The atrophy of hippocampal volume and impairment of functional connectivity are important imaging markers of amnestic mild cognitive impairment.Whether electronic moxibustion can regulate the volume of hippocampal subregion of partients with amnestic mild cognitive impairment is worth studying. OBJECTIVE:To observe the effect of electronic moxibustion on the volume of hippocampal subregions in patients with amnestic mild cognitive impairment. METHODS:Forty patients with amnestic mild cognitive impairment were recruited from April 1,2018 to January 31,2019 at the community service centers around the Second Affiliated Hospital of Shenzhen University(Baoan Hospital of Southern Medical University),Shenzhen,China.They were randomly divided into treatment group(n=20)and control group(n=20).The treatment group was treated with electronic moxibustion of regulating the mind and benefiting the intelligence,while the control group was treated with placebo moxibustion.Moxibustion was given at 45 oC,20 minutes each time,once a day,5 times a week,for 8 weeks in total.Memory evaluation using Rivermead behavioral memory test and magnetic resonance imaging scanning for detecting the hippocampal subregion volume were performed for each patient before and after treatment,and cognitive function of each patient was assessed using Montreal cognitive assessment and mini-mental state examination.Correlation of hippocampal subregion volumes with scores on each scale was analyzed. RESULTS AND CONCLUSION:After treatment,the volumes of the left parasubiculum and the left hippocampal-amygdala migrating area increased in the treatment group but decreased in the control group,and there was a significant difference between the two groups(P<0.05).Compared with the pre-treatment data,the Rivermead behavioral memory test,Montreal cognitive assessment,and mini-mental state examination scores were significantly higher in the treatment group after treatment(P<0.05),while there was no significant change in the three scale scores in the control group after treatment(P>0.05).The three scale scores were higher in the treatment group than in the control group after treatment(P<0.05).Pearson correlation analysis showed that the changes in the volume of the left parasubiculum was significantly and positively correlated with the Rivermead behavioral memory test scale score in the treatment group(r=0.418,P=0.014).To conclude,electronic moxibustion can improve memory in patients with amnestic mild cognitive impairment,and the mechanism may be the regulation of structural plasticity in hippocampal subregions.
6.Accuracy evaluation of a universal dental implant guide for simulating implantation in posterior area on dental molds
Ruibin WANG ; Mingzhang XU ; Lan WANG ; Ziyang ZHENG ; Yunyi DENG ; Maoyun ZENG ; Lingling YUAN ; Peizhao PENG ; Qiqi LIU ; Ke YU
West China Journal of Stomatology 2024;42(3):365-371
Objective This study aims to compare the accuracy of self-developed universal implant guide(SDG),3D printed digital guide(DG),and free hand(FH)simulated implantation in the posterior tooth area of dental models.Methods Ten junior dentists were selected to place three implants in the 35,37,and 46 tooth sites of the mandibular models(35,36,37,and 46 missing teeth)by using SDG,DG,and FH,and the process was repeated again to take the av-erage value.Cone beam computed tomography(CBCT)was used to evaluate the global coronal deviation,global apical deviation,depth deviation,and angular deviation between the actual position and preoperative planned position.Re-sults The coronal deviation and apical deviation of the three implant sites in the SDG group were not significantly dif-ferent from those in the two other groups(P>0.05).The depth deviation and angular deviation in the SDG group were smaller than those in the DG group(P<0.05)and FH group(P<0.05),respectively.All deviations at site 37 in the SDG group were not different from those at site 35(P>0.05),while the depth and angular deviation at site 37 in the DG group were higher than those at site 35(P<0.05).Conclusion The precision of the self-developed universal dental im-plant guide can meet the requirements of clinical posteri-or implantation.
7.Allogeneic hematopoietic stem cell transplantation for children with severe aplastic anemia: a retrospective analysis from a single center
Min HE ; Qiqi YI ; Hailing LIU ; Ding DING ; Man XU ; Guoli LIAN ; Xiaoning WANG
Chinese Pediatric Emergency Medicine 2024;31(7):507-511
Objective:To evaluate the clinical efficacy of allogeneic hematopoietic stem cell transplantation(allo-HSCT)in children with severe aplastic anemia(SAA).Methods:Twenty-seven cases with SAA who had been treated with allo-HSCT from January 2020 to December 2022 were retrospectively analyzed and reviewed.Results:(1)A total of 27 SAA patients were enrolled,including 18 males and 9 females,with a median age of 8 (2-15) years.There were 20 cases of SAA-Ⅰ type,7 cases of SAA-Ⅱ type.Based upon donor sources,three cases of matched sibling donors hematopoietic stem cell transplantation,and 24 cases of haploidentical hematopoietic stem cell transplantation were adopted.(2)Hematopoietic reconstruction was achieved in all 27 cases.The median implantation time of neutrophils and platelets was 10(9-20)days and 12(7-26)days respectively.The cumulative incidence of acute graft-versus-host disease(GVHD)was 66.67%(18/27).The incidence of grade Ⅰ-Ⅱ was 55.56%(15/27)and that of grade Ⅲ-Ⅳ was 11.11%(3/27).The incidence of chronic GVHD was 7.41%(2/27).Transplant-associated thrombotic microangiopathy (TA-TMA) occurred in 7.41%(2/27)patients,cytomegalovirus viremia in 62.96%(17/27)patients,epstein-barr virus infection in 33.33%(9/27)patients,and 14.81%(4/27)patients progressed to post-transplant lymphoproliferative disorder (PTLD).(3)The median follow-up time was 12 (2-28) months.The overall survival rate was 96.29%.Twenty-six patients survived,and one patient died due to multiple complications of severe acute GVHD,TA-TMA,cytomegalovirus infection,PTLD and secondary epilepsy.Conclusion:Allo-HSCT is an effective therapy for SAA in children.The effective rate of this research is 96.29%.Acute GVHD is still the key to therapy.The incidence rate of acute GVHD is 66.67% in this study.The blood incompatibility of donor and recipient may affect the incidence of GVHD.The intensity of GVHD prevention should be reduced after HLA-matched sibling donor-hematopoietic stem cell transplantation so as to avoid the complications of virus recurrence and PTLD.
8.Postoperative longitudinal changes of serum calcium level and its influencing factors in patients with primary hyperparathyroidism
Na KONG ; Qiqi XU ; Nan BAI ; Ziqin ZHANG ; Aimin CUI ; Shen TAN ; Pengji GAO
Chinese Journal of General Surgery 2023;38(5):346-351
Objective:To compare the changes of serum calcium level before and after surgical resection in patients with primary hyperparathyroidism.Methods:Two hundred and seventy-one patients with primary hyperparathyroidism were enrolled from Dec 1992 to Dec 2020 in Beijing Jishuitan Hospital. Serum calcium concentrations were measured before operation, 20 min during surgery, then 2 weeks 1-6 months , 7-12 months and 1 year respectively after operation. The baseline data of postoperative serum calcium such as sex, age, other genetic endocrine diseases, osteopathia and urolithiasis were calculated. The generalized estimation equation was used to analyze the changes of serum calcium in different types of patients before and after operation.Results:The most common postoperative hypocalcemia occurred within 2 weeks, and it occurred frequently half a year after surgery. There was no significant difference in blood calcium between male patients ( t=0.875, P=1.000) and patients with bone lesions ( t=0.034, P=3.049) from 1 to 6 months after surgery and 2 weeks after surgery. Blood calcium level in patients aged 15-35 years old from 1 to 6 months ( t=0.239, P=1.000) , from 7 to 12 months ( t=1.380, P=0.935) and 2 weeks after surgery was not statistically different. The change of bone mineral density was correlated with the change of blood calcium after operation ( F=6.895, P=0.004). Conclusions:The incidence of hypocalcemia was the highest in patients with hyperparathyroidism 2 weeks after surgery, and the blood calcium level was stable within the normal range 1 year later. The blood calcium value of male patients was still at a lower level than that of female patients within six months after surgery. In patients with bone disease, the blood calcium value was lower and recovered slowly 2 weeks after surgery. The blood calcium value of patients aged 15-35 was at a low level within 1 year after surgery.
9.Clinical Effect of Qifu Yixin Prescription on Chronic Heart Failure in Patients with Syndrome of Heart Qi Deficiency
Zhaohui XU ; Yihang ZHONG ; Tianyun SHI ; Jiahui YANG ; Zhirui LIU ; Qiqi WAN ; Yongming LIU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(23):98-105
ObjectiveTo explore the clinical efficacy and safety of Qifu Yixin prescription in treating chronic heart failure in the patients with the syndrome of heart Qi deficiency, so as to provide clinical evidence for the treatment of chronic heart failure with this prescription and promote the clinical application and transformation of this prescription. MethodA total of 106 chronic heart failure patients with the syndrome of heart Qi deficiency who met the criteria in Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine (TCM) from September 2022 to May 2023 were selected and randomized into an observation group (53 cases) and a control group (53 cases). Both groups received routine Western medicine treatment. In addition, the observation group received Qifu Yixin prescription, while the control group received placebo. The treatment course for both groups was 12 weeks. The New York heart association (NYHA) cardiac function grading, N-terminal pro-B-type natriuretic peptide (NT-proBNP), soluble growth-stimulating expression gene 2 (sST2), left ventricular ejection fraction (LVEF), the ratio of early diastolic maximum mitral flow velocity (E) to early diastolic mitral annular motion velocity (e') (E/e'), left ventricular end diastolic diameter (LVEDD), TCM syndrome scores, 6-minute walking test (6MWT), Minnesota Living with Heart Failure Questionnaire (MLHFQ), and Kansas City Cardiomyopathy Questionnaire (KCCQ) were determined before and after treatment. ResultFinally, 102 patients were included for analysis, including 51 patients in the observation group and 51 patients in the control group. After treatment, 42 patients in the observation group showed improved cardiac function grading, with a total response rate of 82.35%, and 32 patients in the control group showed improved cardiac function grading, with a total response rate of 62.75%. The total response rate regarding the cardiac function in the observation group was higher than that in the control group (χ2=4.923, P<0.05). The observation group outperformed the control group in lowering the NT-proBNP level, elevating LVEF, decreasing the E/e' ratio (P<0.05), reducing LVEDD and sST2 levels, and recovering TCM syndrome score, 6MWT score, MLHFQ score, and KCCQ score (P<0.05). None of the safety indexes in the two groups showed abnormal values before and after treatment, and no serious adverse reaction was observed. ConclusionQifu Yixin prescription can improve the heart function, exercise tolerance, and quality of life and alleviate the TCM syndrome of the chronic heart failure patients with the syndrome of heart Qi deficiency by inhibiting myocardial fibrosis.
10.Functional biomaterials for comprehensive periodontitis therapy.
Jiayi LUAN ; Ruotao LI ; Weiguo XU ; Huiying SUN ; Qiqi LI ; Di WANG ; Shujun DONG ; Jianxun DING
Acta Pharmaceutica Sinica B 2023;13(6):2310-2333
Periodontitis is an inflammatory disease caused by bacterial infection directly, and the dysregulation of host immune-inflammatory response finally destroys periodontal tissues. Current treatment strategies for periodontitis mainly involve mechanical scaling/root planing (SRP), surgical procedures, and systemic or localized delivery of antimicrobial agents. However, SRP or surgical treatment alone has unsatisfactory long-term effects and is easy to relapse. In addition, the existing drugs for local periodontal therapy do not stay in the periodontal pocket long enough and have difficulties in maintaining a steady, effective concentration to obtain a therapeutic effect, and continuous administration always causes drug resistance. Many recent studies have shown that adding bio-functional materials and drug delivery systems upregulates the therapeutic effectiveness of periodontitis. This review focuses on the role of biomaterials in periodontitis treatment and presents an overview of antibacterial therapy, host modulatory therapy, periodontal regeneration, and multifunctional regulation of periodontitis therapy. Biomaterials provide advanced approaches for periodontal therapy, and it is foreseeable that further understanding and applications of biomaterials will promote the development of periodontal therapy.


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