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Niinikoski V, Barkoff AM, Mertsola J, He Q. Bordetella pertussis isolates in Finland after acellular vaccination: serotype change and biofilm formation. Clin Microbiol Infect 2024; 30:683.e1-683.e3. [PMID: 38310999 DOI: 10.1016/j.cmi.2024.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/06/2024]
Abstract
OBJECTIVES In Finland, whole cell pertussis vaccine (wP) was introduced in 1952 and was replaced by acellular pertussis vaccine (aP) without fimbrial (FIM) antigen in 2005. We aimed to analyse the changes in serotypes of circulating Bordetella pertussis before and after acellular vaccination and to explore the relationship between biofilm formation and serotype diversity after the introduction of aP vaccine. METHODS Serotyping of 1399 B. pertussis isolates collected at the Finnish National Reference Laboratory for Pertussis and Diphtheria in Turku, Finland, from 1974 to 2023 was performed by slide agglutination or indirect ELISA. Of 278 isolates collected after 2005, 53 were selected, genotyped for fim3 and fim2 alleles, and tested for biofilm formation. The selection criteria included maintaining a relatively equal distribution of isolates per time interval, ensuring approximately a 50:50 ratio of FIM2 (N = 26) and FIM3 (N = 27) serotypes. The reference strain Tohama I was used as a control. RESULTS During the wP era, the majority of circulating B. pertussis exhibited the FIM2 serotype. However, FIM3 strains have appeared since 1999 and become prevalent. After the implementation of aP vaccines, the distribution of serotypes has exhibited substantial variability. FIM3 isolates displayed an enhanced biofilm formation compared to FIM2 isolates (Geometric mean value (95% CI): 0.90 (0.79-1.03) vs. 0.75 (0.65-0.85); p < 0.05). Of the 27 FIM3 isolates, 8 harboured fim3-1 and 19 fim3-2 alleles. FIM3 isolates with fim3-2 allele were significantly associated with increased biofilm formation when compared to those with fim3-1 (1.07 (0.96-1.19) vs. 0.61 (0.52-0.72); p < 0.0001). CONCLUSION Following the implementation of aP vaccines, the distribution of serotypes in Finland has exhibited substantial variability. FIM3 isolates with the fim3-2 allele displayed an enhanced biofilm formation capability compared to FIM2 isolates.
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Affiliation(s)
- Vili Niinikoski
- Finnish Reference Laboratory for Pertussis and Diphtheria, Institute of Biomedicine, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Alex-Mikael Barkoff
- Finnish Reference Laboratory for Pertussis and Diphtheria, Institute of Biomedicine, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Jussi Mertsola
- Finnish Reference Laboratory for Pertussis and Diphtheria, Institute of Biomedicine, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Qiushui He
- Finnish Reference Laboratory for Pertussis and Diphtheria, Institute of Biomedicine, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland.
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Teräsjärvi JT, Toivonen L, Mertsola J, Peltola V, He Q. ST2 and IL-33 polymorphisms and the development of childhood asthma: a prospective birth cohort study in Finnish children. APMIS 2024. [PMID: 38566447 DOI: 10.1111/apm.13411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
The ST2/IL-33 signaling pathway has an important role in the host inflammatory response. Here we aimed to study the association of ST2 and IL-33 polymorphisms with serum soluble (s) ST2 and IL-33 concentrations in healthy Finnish children and, in addition, their association with childhood asthma. In total, 146 children were followed from birth to the age 7 years for the development of asthma. Single-nucleotide polymorphisms (SNPs) in ST2 and IL-33 were determined, and associations of the SNP variants with serum levels of sST2 and IL-33 at age of 13 months and with recurrent wheezing and childhood asthma at 7 years of age were analyzed. Children with ST2 rs1041973 AC/AA genotypes had significantly lower level of serum sST2 (2453 pg/mL; IQR 2265) than those with CC genotype (5437 pg/mL; IQR 2575; p = < 0.0001). Similar difference was also observed with ST2 rs13408661. No differences were observed between subjects with studied IL-33 SNPs. Children who carried genetic variants of ST2 rs1041973 or rs13408661 seemed to have a higher risk of asthma. In contrast, children who carried genetic variants of IL-33 rs12551268 were less often diagnosed with asthma. Even though these SNPs seemed to associate with asthma, the differences were not statistically significant.
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Affiliation(s)
- Johanna T Teräsjärvi
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Laura Toivonen
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Jussi Mertsola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Ville Peltola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
- InFLAMES Research Flagship Centre, University of Turku, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland
- InFLAMES Research Flagship Centre, University of Turku, Turku, Finland
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Teräsjärvi J, Tenhu E, Cruzeiro ML, Savonius O, Rugemalira E, He Q, Pelkonen T. Gene polymorphisms of IL-17A and bacterial meningitis in Angolan children. Infect Genet Evol 2024; 118:105553. [PMID: 38228216 DOI: 10.1016/j.meegid.2024.105553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 01/18/2024]
Abstract
Interleukin (IL)-17 A plays a crucial role in protecting hosts from invading bacterial pathogens. In this study, we investigated if single nucleotide polymorphisms (SNPs) in IL-17A are associated with susceptibility and outcome of bacterial meningitis (BM) in Angolan children. The study sample comprised 241 confirmed BM patients and 265 controls, which were matched for age and ethnicity. Three IL-17A SNPs - rs2275913 (-197G > A), rs8193036 (-737C > T) and rs4711998 (-877 A > G) - were determined by high-resolution melting analysis (HRMA). The frequency of variant genotype rs4711998 was significantly higher in patients with BM caused by Haemophilus influenzae (odds ratio [OR] 3.5; 95% confidence interval [CI] 1.49-8.23; P = 0.0025) than in controls. Also, patients with BM caused by Gram-negative bacteria and who carried the variant genotype rs2275913 had a lower glucose level (P = 0.0051) in cerebrospinal fluid (CSF). Patients with BM caused by Streptococcus pneumoniae who carried the variant type rs8193036 had a reduced risk for severe neurological sequelae (OR: 0.14; 95% CI: 0.029-0.68; P = 0.0079), blindness (OR: 0.012; 95% CI: 0.012-0.87; P = 0.017) and ataxia (OR: 0.28; 95% CI: 0.091-0.83; P = 0.023). This study suggests an association of IL-17A genetic variations with susceptibility and outcome of bacterial meningitis in Angolan children.
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Affiliation(s)
- Johanna Teräsjärvi
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland
| | - Elina Tenhu
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland
| | | | - Okko Savonius
- Pediatrics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, Helsinki, Finland
| | - Emilie Rugemalira
- Pediatrics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, Helsinki, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland; InFLAMES Research Flagship Centre, University of Turku, Turku, Finland.
| | - Tuula Pelkonen
- Hospital Pediátrico David Bernardino, Luanda, Angola; Pediatrics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, Helsinki, Finland
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Grönthal TSC, Lehto AK, Aarnio SS, Eskola EK, Aimo-Koivisto EM, Karlsson T, Koskinen HI, Barkoff AM, He Q, Lienemann T, Rimhanen-Finne R, Mykkänen A. Pastern dermatitis outbreak associated with toxigenic and non-toxigenic Corynebacterium diphtheriae and non-toxigenic Corynebacterium ulcerans at a horse stable in Finland, 2021. Zoonoses Public Health 2024; 71:127-135. [PMID: 37926867 DOI: 10.1111/zph.13090] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/13/2023] [Accepted: 10/21/2023] [Indexed: 11/07/2023]
Abstract
AIMS Corynebacterium diphtheriae and Corynebacterium ulcerans, when producing toxin, are the cause of diphtheria, a potentially life-threatening illness in humans. Horses (Equus ferus caballus) are known to be susceptible to infection that may manifest clinically on rare occasions. In late 2021 and early 2022, specimens from five horses suffering from pastern dermatitis were cultured at the Laboratory of Clinical Microbiology at the Faculty of Veterinary Medicine, University of Helsinki, Finland. C. diphtheriae and/or C. ulcerans were recovered from all of these. This study aimed to (1) analyse the bacterial isolates and (2) describe the outbreak and identify possible sources of the infection and infection routes in the stable. METHODS AND RESULTS Susceptibility testing, PCR for the tox gene, and Elek test for toxin production in PCR-positive isolates were performed. Whole genome sequencing was also conducted to achieve high-resolution strain typing. An epidemiological survey was done by means of a semi-structured interview of horses' caretaker, and contact tracing was done among people at the stable. Two tox gene-positive, toxin-producing C. diphtheriae belonged to sequence type (ST) 822. Other C. diphtheriae (n = 2, ST828) and C. ulcerans (n = 2, ST325 and ST838) isolates did not carry the tox gene. The epidemiological investigation explored numerous possible routes of transmission, but the definite source of infection was not identified. All established human contacts tested negative for diphtheriae. All horses recovered after antimicrobial treatment. CONCLUSIONS Our study shows that C. diphtheriae and C. ulcerans may readily spread among horses at the same stable and complicate pastern dermatitis infections. These potentially zoonotic bacteria can cause outbreaks even in a country with a very low prevalence. Caretakers should be encouraged to wear gloves and practice good hand hygiene when treating infected skin lesions in horses.
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Affiliation(s)
- Thomas Sven Christer Grönthal
- Animal Health Diagnostics Unit, Finnish Food Authority, Helsinki, Finland
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Anna Karoliina Lehto
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Sanna Sofia Aarnio
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Eva Katarina Eskola
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Elina Marjaana Aimo-Koivisto
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Teemu Karlsson
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Heli Irmeli Koskinen
- Infectious Disease Control and Vaccinations Unit, Department of Health Security, Finnish Institute of Health and Welfare, Helsinki, Finland
| | - Alex-Mikael Barkoff
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, Turku, Finland
| | - Taru Lienemann
- Animal Health Diagnostics Unit, Finnish Food Authority, Helsinki, Finland
| | - Ruska Rimhanen-Finne
- Infectious Disease Control and Vaccinations Unit, Department of Health Security, Finnish Institute of Health and Welfare, Helsinki, Finland
| | - Anna Mykkänen
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
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Zheng C, Ji C, Wang B, Zhang J, He Q, Ma J, Yang Z, Pan Q, Sun L, Sun N, Ling C, Lin G, Deng X, Yin L. Construction of prediction model for fetal growth restriction during first trimester in an Asian population. Ultrasound Obstet Gynecol 2024; 63:321-330. [PMID: 37902789 DOI: 10.1002/uog.27522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 10/31/2023]
Abstract
OBJECTIVE To construct a prediction model for fetal growth restriction (FGR) during the first trimester of pregnancy and evaluate its screening performance. METHODS This was a prospective cohort study of singleton pregnancies that underwent routine ultrasound screening at 11 to 13 + 6 weeks at the Affiliated Suzhou Hospital of Nanjing Medical University between January 2019 and April 2022. Basic clinical information, ultrasound indicators and serum biomarkers of pregnant women were collected. Fetal weight assessment was based on the fetal growth curve for the Southern Chinese population. FGR was diagnosed according to Delphi consensus criteria. Least absolute shrinkage and selection operator (lasso) regression was used to select variables for inclusion in the model. Discrimination, calibration and clinical effectiveness of the model were evaluated in training and validation cohorts. RESULTS A total of 1188 pregnant women were included, of whom 108 had FGR. Lasso regression identified seven predictive features, including history of maternal hypertension, maternal smoking or passive smoking, gravidity, uterine artery pulsatility index, ductus venosus pulsatility index and multiples of the median values of placental growth factor and soluble fms-like tyrosine kinase-1. The nomogram prediction model constructed from these seven variables accurately predicted FGR, and the area under the receiver-operating-characteristics curve in the validation cohort was 0.82 (95% CI, 0.74-0.90). The calibration curve and Hosmer-Lemeshow test demonstrated good calibration, and the clinical decision curve and clinical impact curve supported its practical value in a clinical setting. CONCLUSION The multi-index prediction model for FGR has good predictive value during the first trimester. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- C Zheng
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
- Department of Ultrasound, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - C Ji
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - B Wang
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - J Zhang
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Q He
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - J Ma
- Center for Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Z Yang
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Q Pan
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - L Sun
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - N Sun
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - C Ling
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - G Lin
- Department of Obstetrics, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - X Deng
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - L Yin
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
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Ma XX, Zhou XY, Feng MG, Ji YT, Song FF, Tang QC, He Q, Zhang YF. Dual Role of IGF2BP2 in Osteoimmunomodulation during Periodontitis. J Dent Res 2024; 103:208-217. [PMID: 38193302 DOI: 10.1177/00220345231216115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024] Open
Abstract
Periodontitis is a complex disease characterized by distinct inflammatory stages, with a peak of inflammation in the early phase and less prominent inflammation in the advanced phase. The insulin-like growth factor 2-binding proteins 2 (IGF2BP2) has recently been identified as a new m6A reader that protects m6A-modified messenger RNAs (mRNAs) from decay, thus participating in multiple biological processes. However, its role in periodontitis remains unexplored. Here, we investigated the role of IGF2BP2 in inflammation and osteoclast differentiation using a ligature-induced periodontitis model. Our findings revealed that IGF2BP2 responded to bacterial-induced inflammatory stimuli and exhibited differential expression patterns in early and advanced periodontitis stages, suggesting its dual role in regulating this disease. Depletion of Igf2bp2 contributed to increased release of inflammatory cytokines, thereby exacerbating periodontitis after 3 d of ligature while suppressing osteoclast differentiation and ameliorating periodontitis after 14 d of ligature. Mechanistically, we demonstrated that IGF2BP2 directly interacted with Cd5l and Cd36 mRNA via RNA immunoprecipitation assay. Overexpression of CD36 or recombinant CD5L rescued the osteoclast differentiation ability of Igf2bp2-null cells upon lipopolysaccharide stimulus, and thus the downregulation of Cd36 and Cd5l effectively reversed periodontitis in the advanced stage. Altogether, this study deepens our understanding of the potential mechanistic link among the dysregulated m6A reader IGF2BP2, immunomodulation, and osteoclastogenesis during different stages of periodontitis.
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Affiliation(s)
- X X Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X Y Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - M G Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y T Ji
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - F F Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q C Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y F Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, China
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Li S, Su B, Wu H, He Q, Zhang T. Integrated analysis of gut and oral microbiome in men who have sex with men with HIV Infection. Microbiol Spectr 2023; 11:e0106423. [PMID: 37850756 PMCID: PMC10714972 DOI: 10.1128/spectrum.01064-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 09/11/2023] [Indexed: 10/19/2023] Open
Abstract
IMPORTANCE Our longitudinal integrated study has shown the marked alterations in the gut and oral microbiome resulting from acute and chronic HIV infection and from antiretroviral therapy. Importantly, the relationship between oral and gut microbiomes in people living with acute and chronic HIV infection and "healthy" controls has also been explored. These findings might contribute to a better understanding of the interactions between the oral and gut microbiomes and its potential role in HIV disease progression.
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Affiliation(s)
- Shuang Li
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Bin Su
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Hao Wu
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Qiushui He
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, Turku, Finland
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Tong Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
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Knuutila A, Dalby T, Ahvenainen N, Barkoff AM, Jørgensen CS, Fuursted K, Mertsola J, He Q. Antibody avidity to pertussis toxin after acellular pertussis vaccination and infection. Emerg Microbes Infect 2023; 12:e2174782. [PMID: 36715361 PMCID: PMC9936998 DOI: 10.1080/22221751.2023.2174782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Pertussis toxin (PT) is a unique virulence factor of Bordetella pertussis, and therefore a key component of acellular pertussis vaccines. Although immunity after infection seems to persist longer than after vaccination, the exact mechanisms are not fully known. In this study the overall binding strength (avidity) of anti-PT IgG antibodies was compared after acellular booster vaccination and infection, as a parameter to evaluate long-lasting protection.Danish and Finnish serum samples from a total of 134 serologically confirmed patients and 112 children who received acellular booster vaccines were included in this study. The concentration of anti-PT IgG was first determined by ELISA, followed by two separate ELISAs to evaluate antibody avidity: either with a dilution series of urea as a bond-breaking agent of antibody and antigen binding and a constant anti-PT IgG concentration between the samples or with a constant dilution ratio of sera and detergent. In addition to urea, the use of diethylamine and ammonium thiocyanate as disruptive agents were first compared between each other.A strong Spearman correlation (R > 0.801) was noted between avidity and concentration of anti-PT IgG antibodies if a constant serum dilution method was used, and avidity was noted to be higher in patients in comparison to vaccinees in Denmark, but not in Finland. However, no correlation between antibody concentration and avidity was found if a constant anti-PT IgG concentration was used (R = -0.157). With this method, avidity after vaccination was significantly higher in comparison to that after infection in both Danish and Finnish subjects (p < 0.01). A shorter time since the latest booster vaccination was found to affect avidity positively on the next PT-antigen exposure with either vaccination or infection.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Tine Dalby
- Statens Serum Institut, Copenhagen, Denmark
| | | | | | | | | | - Jussi Mertsola
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland,InFLAMES Research Flagship Center, University of Turku, Turku, Finland, Qiushui He
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9
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Huang XF, He Q, Shi HH, Hu HP, Lu L, Huang RM, Zhang XY, Xu YQ. [Mediating effects of obesity and metabolic factors in hyperuricemia and prehypertension]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1599-1603. [PMID: 37875447 DOI: 10.3760/cma.j.cn112338-20230314-00145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Objective: To assess the mediating effects of obesity and metabolic factors in the relationship between hyperuricemia (HUA) and prehypertension. Methods: A total of 9 399 individuals were selected using a multistage stratified whole-group random sampling method from 90 villages (neighborhood committees) in 30 towns (streets) of 5 districts (counties) in Fuzhou. A total of 4 754 study subjects were included. A linear regression model was used to analyze the association of HUA with obesity and metabolic factors. Single-factor and multi-factor logistic regression models were used to analyze the association of HUA, obesity, and metabolic factors with prehypertension. Mediating effects models were used to analyze the mediating effects of obesity and metabolic factors on the association between HUA and prehypertension. Results: After adjusting for confounders, the association between HUA and cholesterol, triglycerides, HDL-C, LDL-C, BMI, waist circumference, creatinine, and urea nitrogen were significantly correlated (P<0.001). HUA, waist circumference, BMI, and triglycerides were significantly associated with prehypertension (P<0.001). Waist circumference, BMI, and triglycerides mediated the relationship between HUA and prehypertension, with OR (95%CI) of 1.018 (1.007-1.027), 1.010 (1.002-1.018), and 1.010 (1.003-1.017) (P<0.001), with mediating proportions of 7.76%, 4.31%, and 4.31% respectively. No mediating effect of cholesterol, HDL-C, LDL-C, creatinine, and urea nitrogen was found on the relationship (P>0.05). Conclusions: Waist circumference, BMI, and triglycerides all had mediating effects in the association between HUA and prehypertension. For the general population, weight control, waist circumference, and a high-fat diet should be used to reduce the occurrence of prehypertension.
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Affiliation(s)
- X F Huang
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
| | - Q He
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
| | - H H Shi
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
| | - H P Hu
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
| | - L Lu
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China
| | - R M Huang
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China
| | - X Y Zhang
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
| | - Y Q Xu
- Fuzhou Center for Disease Control and Prevention, Fujian Medical University, Fuzhou 350004, China School of Public Health, Fujian Medical University, Fuzhou 350004, China
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10
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Wang J, He Q, Li ZR, Huang N, Huang R, Wang JY, Zhou Q, Wang XH, Han F. The Lyman Normal Tissue Complication Probability Model and Risk Prediction for Temporal Lobe Injury after Re-Irradiation in Patients with Recurrent Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e587. [PMID: 37785777 DOI: 10.1016/j.ijrobp.2023.06.1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The risk of temporal lobe injury (TLI) in recurrent nasopharyngeal carcinoma (rNPC) patients with intensity-modulated radiation therapy (IMRT) is high. We aimed to construct the normal tissue complication probability (NTCP) model for TLI of rNPC and establish a risk predictive model. MATERIALS/METHODS We retrospectively analyzed 103 patients with rNPC who had received two courses of IMRT in our institution. The 206 temporal lobes (TLs) of these patients were randomly divided into a training (n = 144) and validation group (n = 62). We determined the mean value of the following parameters to construct the Lyman NTCP model: TD50(1) (the dose with a 50% probability of complications to an organ when all volumes are irradiated), m [steepness of the dose-response at TD50(1)], and n (the parameter related to volume effect). The most predictive dosimetric parameter and clinical variables were integrated in Cox proportional hazards models. A nomogram was developed for predicting risk of TLs. RESULTS The parameters of the fitted NTCP model were TD50(1) = 107.84 Gy (95% confidence interval (CI), [97.15, 118.54]), m = 0.16 (95% CI, [0.14, 0.19]), and n = 0.04 (95% CI, [0.01, 0.06]). The cumulative dose delivered to 0.1 cm3 of temporal lobe volume (D0.1cc-c) was the most predictive dosimetric parameter for TLI. The Kaplan-Meier curves showed a significant difference in 2-year TLI-free survival among different risk groups according to the total score of nomograms. CONCLUSION The TD50(1) of TLI in patients with rNPC is 107.84 Gy in Lyman NTCP model. The nomogram model can accurately predict the risk of TLI for individual.
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Affiliation(s)
- J Wang
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Q He
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Z R Li
- Manteia Technologies Co., Ltd, Xiamen, Fujian, China
| | - N Huang
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - R Huang
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - J Y Wang
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Q Zhou
- Manteia Technologies Co., Ltd, Xiamen, Fujian, China
| | - X H Wang
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - F Han
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
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Wang L, Wu Z, He Q, Li Y, Wang S, Li F, Wang H, Li W, Han YQ. Distribution Pattern of Metastatic Lymph Nodes in 870 Cases of Nasopharyngeal Carcinoma: A Clue for Individualized Elective Prophylactic Neck Irradiation. Int J Radiat Oncol Biol Phys 2023; 117:e632. [PMID: 37785888 DOI: 10.1016/j.ijrobp.2023.06.2030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We aimed to explore a potential individualized elective prophylactic neck irradiation (iEPNI) to optimize the current strategy by investigating the distribution of metastatic lymph nodes (LNs) in nasopharyngeal carcinoma (NPC). MATERIALS/METHODS Magnetic resonance imaging (MRI) and clinical data of 870 non-distant metastatic NPC patients admitted to the Hunan Cancer Hospital between January 2019 and December 2019 were reviewed. All patients were staged using the 8th TNM staging system, and the LNs location was assigned based on the 2013 guidelines. According to the distribution patterns of the LNs in NPC, the intra-regional lymphatic drainage levels were categorized into the following three stations: Station 1st of level VIIa and II; Station 2nd of level III and Va; and Station 3rd of level IV, Vb, and Vc. Other levels were defined as extra-regional areas. RESULTS The incidence of LNs metastasis was 822/870 (94.5%), including 198 cases of unilateral metastasis and 624 cases of bilateral metastasis. Among the 870 patients, the most frequently involved intra-regional lymphatic drainage was level IIb (87.1%), followed by level VIIa (80.0%), IIa (61.8%), Va (30.6%), IV (21.4%), Vb (8.9%), and Vc (1.1%). In the extra-regional areas, the detailed LNs distribution was: level Ia (0.2%), level Ib (7.7%), level VI (0.1%), level VIIb (5.6%), level VIII (5.5%), level IX (0.3%), and level X (0.2%). The rates of LNs metastasis in Station 1st, Station 2nd, and Station 3rd were 820/870 (94.3%), 532/870 (61.1%), and 199/870 (22.9%), respectively. Only 4 patients were considered to be skipping metastasis among the three stations (4/870, 0.5%). Additionally, in 203 patients with unilateral Station 1st LNs metastasis, there were 86 (42.4%) and 37 (18.2%) patients with ipsilateral Station 2nd and Station 3rd metastasis, respectively, and 3 (1.5%) and 1 (0.5%) patients with contralateral Station 2nd and Station 3rd LNs metastasis, respectively. CONCLUSION LNs spread from Station 1st to Station 3rd successively with rare skipping metastasis. A potential iEPNI strategy of prophylactical neck irradiation to the ipsilateral latter node-negative station might be feasible, which is detailed as follows: irradiation to Station 1st in patients with no LNs metastasis, irradiation to Station 2nd in patients with only Station 1st metastasis, and irradiation to Station 3rd in patients with Station 2nd metastasis but without Station 3rd metastasis. Further prospective investigations are expected to validate the strategy.
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Affiliation(s)
- L Wang
- Department of Radiotherapy, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, China
| | - Z Wu
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Q He
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Y Li
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - S Wang
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - F Li
- Department of Imaging, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - H Wang
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - W Li
- Department of Radiotherapy, the Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Yunnan Cancer Center, Kunming, China
| | - Y Q Han
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
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Wang H, He Q, Liu D, Deng XZ, Ma J, Xie LN, Sun ZL, Liu C, Zhao RR, Lu K, Chu XX, Gao N, Wei HC, Sun YH, Zhong YP, Xing LJ, Zhang HY, Zhang H, Xu WW, Li ZJ. [Efficacy and safety of bendamustine-rituximab combination therapy for newly diagnosed indolent B-cell non-Hodgkin's lymphoma and elderly mantle cell lymphoma: a multi-center prospective phase II clinical trial in China]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:550-554. [PMID: 37749033 PMCID: PMC10509620 DOI: 10.3760/cma.j.issn.0253-2727.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Indexed: 09/27/2023]
Abstract
Objectives: This study aimed to assess the efficacy and safety of bendamustine in combination with rituximab (BR regimen) for the treatment of newly diagnosed indolent B-cell non-Hodgkin's lymphoma (B-iNHL) and elderly mantle cell lymphoma (eMCL) . Methods: From December 1, 2020 to September 10, 2022, a multi-center prospective study was conducted across ten Grade A tertiary hospitals in Shandong Province, China. The BR regimen was administered to evaluate its efficacy and safety in newly diagnosed B-iNHL and eMCL patients, and all completed at least four cycles of induction therapy. Results: The 72 enrolled patients with B-iNHL or MCL were aged 24-74 years, with a median age of 55 years. Eastern Cooperative Oncology Group (ECOG) performance status scores of 0-1 were observed in 76.4% of patients, while 23.6% had scores of 2. Disease distribution included follicular lymphoma (FL) (51.4% ), marginal zone lymphoma (MZL) (33.3% ), eMCL (11.1% ), and the unknown subtype (4.2% ). According to the Ann Arbor staging system, 16.7% and 65.3% of patients were diagnosed with stage Ⅲ and stage Ⅳ lymphomas, respectively. Following four cycles of BR induction therapy, the overall response rate was 98.6%, with a complete response (CR) rate of 83.3% and a partial response (PR) rate of 15.3%. Only one eMCL patient experienced disease progression during treatment, and only one FL patient experienced a relapse. Even when evaluated using CT alone, the CR rate was 63.9%, considering the differences between PET/CT and CT assessments. The median follow-up duration was 11 months (range: 4-22), with a PFS rate of 96.8% and an OS rate of 100.0%. The main hematologic adverse reactions included grade 3-4 leukopenia (27.8%, with febrile neutropenia observed in 8.3% of patients), grade 3-4 lymphopenia (23.6% ), grade 3-4 anemia (5.6% ), and grade 3-4 thrombocytopenia (4.2% ). The main non-hematologic adverse reactions such as fatigue, nausea/vomiting, rash, and infections occurred in less than 20.0% of patients. Conclusion: Within the scope of this clinical trial conducted in China, the BR regimen demonstrated efficacy and safety in treating newly diagnosed B-iNHL and eMCL patients.
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Affiliation(s)
- H Wang
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Q He
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - D Liu
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - X Z Deng
- Department of Hematology, Weihai Municipal Hospital, Weihai 264200, China
| | - J Ma
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - L N Xie
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Z L Sun
- Department of Hematology, Jining First People's Hospital, Jining 272000, China
| | - C Liu
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - R R Zhao
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - K Lu
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - X X Chu
- Department of Hematology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, China
| | - N Gao
- Department of Hematology, Binzhou Medical University Hospital, Binzhou 256600, China
| | - H C Wei
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - Y H Sun
- Department of Hematology, Weifang People's Hospital, Weifang 261000, China
| | - Y P Zhong
- Department of Hematology, Qingdao Municipal Hospital, Qingdao 266000, China
| | - L J Xing
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
| | - H Y Zhang
- Department of Hematology, Linyi People's Hospital, Linyi 276000, China
| | - H Zhang
- Department of Hematology, Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - W W Xu
- Department of Hematology, The First Affiliated Hospital of Shandong First Medical University, Jinan 250000, China
| | - Z J Li
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250000, China
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Yilmaz M, He Q, Demir E, Teräsjärvi J, Gürsoy UK. Salivary IL-33 and sST2 levels in relation to TLR2 rs111200466 polymorphism and periodontitis. Oral Dis 2023. [PMID: 37427857 DOI: 10.1111/odi.14675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/30/2023] [Accepted: 06/28/2023] [Indexed: 07/11/2023]
Abstract
OBJECTIVES Toll-like receptor-2 (TLR2) signalling pathway is involved in the regulation of interleukin (IL)-33 and its receptor suppression of tumorigenicity-2 (ST2). This study aimed to compare salivary IL-33 and soluble ST2 (sST2) levels of periodontitis patients with those of periodontally healthy individuals in relation to their TLR2 rs111200466 23-bp insertion/deletion polymorphism within the promoter region. MATERIALS AND METHODS Unstimulated saliva samples were collected, and periodontal parameters were recorded from 35 periodontally healthy individuals and 44 periodontitis patients. Non-surgical treatments were applied to periodontitis patients, and sample collections and clinical measurements were repeated 3 months following therapy. Salivary IL-33 and sST2 levels were measured with enzyme-linked immunosorbent assay kits, and TLR2 rs111200466 polymorphism was detected by polymerase chain reaction. RESULTS Elevated salivary IL-33 (p = 0.007) and sST2 (p = 0.020) levels were observed in periodontitis patients, in comparison to controls. sST2 levels declined 3-months following treatment (p < 0.001). Increased salivary IL-33 and sST2 levels were found to be associated with periodontitis, with no significant relation to the TLR2 polymorphism. CONCLUSION Periodontitis, but not TLR2 rs111200466 polymorphism, is associated with elevated salivary sST2 and possibly IL-33 levels, and periodontal treatment is effective in reducing salivary sST2 levels.
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Affiliation(s)
- Mustafa Yilmaz
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
- Department of Periodontology, Faculty of Dentistry, Biruni University, Istanbul, Turkey
| | - Qiushui He
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland
- InFLAMES Research Flagship Centre, University of Turku, Turku, Finland
| | - Esra Demir
- Department of Periodontology, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Johanna Teräsjärvi
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Ulvi Kahraman Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
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Chen Z, Liu X, Zhang Y, Peng X, Zhang N, Chen N, Li Y, He Q. Evaluation of serum anti-pertussis toxin IgA antibodies for the diagnosis of Bordetella pertussis infection in young children. J Infect Public Health 2023; 16:1167-1173. [PMID: 37269695 DOI: 10.1016/j.jiph.2023.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/02/2023] [Accepted: 05/22/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND The determination of serum anti-pertussis toxin (PT) IgG antibodies is recommended for the diagnosis and surveillance of pertussis. However, the diagnostic power of anti-PT IgG can be hampered by possible interference from previous vaccinations. We aim to assess if anti-PT IgA antibodies can be well induced by Bordetella pertussis (B. pertussis) infections in children, and their capacity to improve pertussis serodiagnosis. METHODS Serum samples from 172 hospitalized children younger than 10 years old with confirmed pertussis were tested. Pertussis was confirmed by culture, PCR and/or serology. Anti-PT IgA antibodies were determined with commercial ELISA kits. RESULTS Sixty-four (37.2 %) subjects had anti-PT IgA antibodies greater than or equal to 15 IU/ml, and 52 (30.2 %) of them had anti-PT IgA antibodies greater than or equal to 20 IU/ml. No children with negative anti-PT IgG (less than 40 IU/ml) were observed to have anti-PT IgA antibodies greater than or equal to 15 IU/ml. Of patients younger than one year of age, about 50 % had an IgA antibody response. Moreover, the proportion of subjects with anti-PT IgA antibodies greater than or equal to 15 IU/ml among PCR negative subjects was significantly higher than that among PCR positive subjects (76.9 % vs 35.5 %). CONCLUSIONS The determination of anti-PT IgA antibodies does not seem to have added value for the serodiagnosis of pertussis in children older than one year of age. However, for infants, determination of serum anti-PT IgA antibodies appears to be useful for the diagnosis of pertussis especially when PCR and culture are negative. The results should be interpreted with caution as the number of subjects included in this study was limited.
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Affiliation(s)
- Zhiyun Chen
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Xiaoguai Liu
- The Third Department, Xi'an Children's Hospital, Xi'an, China
| | - Yuxiao Zhang
- Medical Research & Laboratory Diagnostic Center, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Xiaokang Peng
- The Third Department, Xi'an Children's Hospital, Xi'an, China
| | - Nan Zhang
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Ning Chen
- Department of Medical Microbiology, Capital Medical University, Beijing, China; Center for adverse drug reactions monitoring of Beijing, Beijing, China
| | - Yarong Li
- The Third Department, Xi'an Children's Hospital, Xi'an, China.
| | - Qiushui He
- Department of Medical Microbiology, Capital Medical University, Beijing, China; Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, Turku, Finland.
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Ma Y, Du Y, Yang J, He Q, Wang H, Lin X. Anti-inflammatory effect of Irisin on LPS-stimulated macrophages through inhibition of MAPK pathway. Physiol Res 2023; 72:235-249. [PMID: 37159857 PMCID: PMC10226406 DOI: 10.33549/physiolres.934937] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 12/20/2022] [Indexed: 06/29/2023] Open
Abstract
This study aimed to investigate the effect of irisin on LPS-induced inflammation in RAW 264.7 macrophages through inhibition of the mitogen-activated protein kinase (MAPK) pathway. A network pharmacology-based approach, combined with molecular docking and in vitro validation were performed to identify the biological activity, key targets, and potential pharmacological mechanisms of irisin against LPS-induced inflammation. By matching 100 potential genes of irisin with 1893 ulcerative colitis (UC) related genes, 51 common genes were obtained. Using protein-protein interaction networks (PPI) and component-target network analysis,10 core genes of irisin on UC were further identified. The results of gene ontology (GO) enrichment analysis showed that the molecular mechanisms of irisin on UC were mainly related to major enrichment in the categories of response to xenobiotic stimulus, response to the drug, and negative regulation of gene expression. Molecular docking results showed good binding activity for almost all core component targets. More importantly, MTT assay and flow cytometry results showed that LPS-induced cytotoxicity was reversed by irisin, after coincubation with irisin, the level of IL-12 and IL-23 decreased in LPS-stimulated RAW264.7 macrophages. Irisin pretreatment significantly inhibited the phosphorylation of ERK and AKT and increased the expression of PPAR alpha and PPAR gamma. LPS-induced enhancement of phagocytosis and cell clearance were reversed by irisin pretreatment. Irisin ameliorated LPS-induced inflammation by inhibiting cytotoxicity and apoptosis, and this protective effect may be mediated through the MAPK pathway. These findings confirmed our prediction that irisin plays an anti-inflammatory role in LPS-induced inflammation via the MAPK pathway.
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Affiliation(s)
- Y Ma
- Department of Clinical Laboratory, Huaihe Hospital of Henan University, Kaifeng, China.
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Ma Y, Du Y, Yang J, He Q, Wang H, Lin X. Anti-inflammatory effect of Irisin on LPS-stimulated macrophages through inhibition of MAPK pathway. Physiol Res 2023; 72:235-249. [PMID: 37159857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
This study aimed to investigate the effect of irisin on LPS-induced inflammation in RAW 264.7 macrophages through inhibition of the mitogen-activated protein kinase (MAPK) pathway. A network pharmacology-based approach, combined with molecular docking and in vitro validation were performed to identify the biological activity, key targets, and potential pharmacological mechanisms of irisin against LPS-induced inflammation. By matching 100 potential genes of irisin with 1893 ulcerative colitis (UC) related genes, 51 common genes were obtained. Using protein-protein interaction networks (PPI) and component-target network analysis,10 core genes of irisin on UC were further identified. The results of gene ontology (GO) enrichment analysis showed that the molecular mechanisms of irisin on UC were mainly related to major enrichment in the categories of response to xenobiotic stimulus, response to the drug, and negative regulation of gene expression. Molecular docking results showed good binding activity for almost all core component targets. More importantly, MTT assay and flow cytometry results showed that LPS-induced cytotoxicity was reversed by irisin, after coincubation with irisin, the level of IL-12 and IL-23 decreased in LPS-stimulated RAW264.7 macrophages. Irisin pretreatment significantly inhibited the phosphorylation of ERK and AKT and increased the expression of PPAR alpha and PPAR gamma. LPS-induced enhancement of phagocytosis and cell clearance were reversed by irisin pretreatment. Irisin ameliorated LPS-induced inflammation by inhibiting cytotoxicity and apoptosis, and this protective effect may be mediated through the MAPK pathway. These findings confirmed our prediction that irisin plays an anti-inflammatory role in LPS-induced inflammation via the MAPK pathway.
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Affiliation(s)
- Y Ma
- Department of Clinical Laboratory, Huaihe Hospital of Henan University, Kaifeng, China.
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Knuutila A, Harju I, Korhonen S, Mäkelä J, Backström L, Barkoff AM, He Q. Vaccine Antigen Deficiency Does Not Substantially Affect the Identification of Bordetella pertussis Strains by Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry. J Clin Microbiol 2023; 61:e0166522. [PMID: 36976003 PMCID: PMC10117144 DOI: 10.1128/jcm.01665-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Inka Harju
- Department of Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Suvi Korhonen
- HUS Diagnostic Center, Clinical Microbiology, Bacteriology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Joonatan Mäkelä
- Department of Life Technologies, University of Turku, Turku, Finland
| | - Lucas Backström
- Department of Life Technologies, University of Turku, Turku, Finland
| | | | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
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Shen Q, Liu YX, He Q. [Mucinous tubular and spindle cell carcinoma of kidney: Clinicopathology and prognosis]. Beijing Da Xue Xue Bao Yi Xue Ban 2023; 55:276-282. [PMID: 37042138 PMCID: PMC10091246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
OBJECTIVE To investigate and summarize the clinicopathological features, immunophenotype, differential diagnosis and prognosis analysis of mucinous tubular and spindle cell carcinoma (MTSCC). METHODS The data of thirteen cases of MTSCC were retrospectively analyzed, the clinical and pathological characteristics and immunohistochemical expression were summarized, and fluorescence in situ hybridization was detected. RESULTS Among the thirteen patients, four were males and nine females, with a male-to-female ratio of 1 ∶2.25. The average age was 57.1 years, ranging from 39 to 78 years. The maximum diameter of the tumor was 2-12 cm. All cases had no symptoms, and were accidentally discovered, 3 cases underwent partial renal resection, 10 cases underwent radical renal resection, 9 cases were located in the left kidney, and 4 cases were located in the right kidney. Most of the cases showed the classical morphological changes, with 11 cases of nuclear grading [World Health Organization (WHO)/International Society of Urological Pathology (ISUP) grading system] being G2 and 2 cases being G3. There were 6 cases of stage PT1a, 3 cases of PT1b, 2 cases of PT2a, and 1 case of PT2b and 1 case of PT3a. The positive rates of immunohistochemical staining were: vimentin, AE1/AE3, α-methylacyl-CoA racemase (αMACR) and cytokeratin (CK) 8/18, 100% (13/13); CK7, 92.3% (12/13); epithelial membrane antigen (EMA), 92.3% (12/13); CK20, 46.2% (6/13); CD10, 30.8% (4/13); synaptophysin (Syn), 7.7% (1/13); chromogranin A (CgA), CD57, WT1 and Ki-67, 0 (0/13), and fluorescence in situ hybridization showed that no trisomy of chromosomes 7 and 17 were observed in any of the cases. The follow-up period was 6 months to 7 years and 6 months, 2 cases died after lung metastasis (one with ISUP/WHO grade G3, one with necrosis), and the remaining 11 cases had no recurrence and metastasis. CONCLUSION MTSCC is a unique type of low-grade malignancy kidney tumor, occurs predominantly in females, widely distributed in age, the current treatment method is surgical resection, and cases with necrosis and high-grade morphology are prone to recurrence and metastasis, although most cases have a good prognosis, but they still need close follow-up after surgery.
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Affiliation(s)
- Q Shen
- Department of Urology, Peking University First Hospital; Institute of Urology, Peking University; National Urological Cancer Center, Beijing 100034, China
| | - Y X Liu
- Department of Urology, Peking University First Hospital; Institute of Urology, Peking University; National Urological Cancer Center, Beijing 100034, China
| | - Q He
- Department of Urology, Peking University First Hospital; Institute of Urology, Peking University; National Urological Cancer Center, Beijing 100034, China
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Knuutila A, Barkoff AM, Ivaska L, Tenhu E, Teräsjärvi J, van Gageldonk P, Buisman A, Mertsola J, He Q. Effect of Immunization During Pregnancy and Pre-existing Immunity on Diphtheria-Tetanus-Acellular Pertussis Vaccine Responses in Infants. Emerg Microbes Infect 2023; 12:2204146. [PMID: 37060181 PMCID: PMC10161941 DOI: 10.1080/22221751.2023.2204146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Immunization during pregnancy (IP) against pertussis is recommended in many countries to protect infants. Although maternal antibodies can influence the infants' antibody responses to primary vaccinations, their effect on the development of functional antibodies and B cells remain poorly studied. We investigated the maternal immune response to IP and the effect of IP and pre-existing antibodieson infants' primary vaccine responses in an open-label, non-randomized trial. Forty-seven mothers received tetanus-diphtheria-acellular pertussis (Tdap) vaccine during pregnancy, and 22 mothers were included as controls. Sixty-nine infants received primary doses of DTaP at three and five months of age. Geometric mean concentrations of antibodies to pertussis toxin, filamentous haemagglutinin, pertactin, diphtheria, and tetanus toxins, pertussis toxin neutralizing antibodies (PTNAs), and plasma and memory B-cell frequencies were studied at delivery, and at three, five and six months. Levels of antibodies, PTNAs, and frequencies of memory B-cells were significantly increased at delivery and up to six months after in mothers with IP compared to those without IP (all p < 0.05, except for PT-specific memory B-cells). In vaccinated pregnant women, high pre-existing antibody levels were positively correlated with higher antibody responses after IP. IP blunted the infants' antibody and plasma B-cell responses to all vaccine antigens, except for tetanus toxin. This blunting effect was the strongest in infants with high concentrations of maternal antibodies. In conclusion, IP resulted in significantly higher concentrations of antibodies in infants up to three months of age (all p < 0.05); but was associated with blunting of various infants' vaccine responses.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Alex-Mikael Barkoff
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Lauri Ivaska
- Department of Paediatric and Adolescent Medicine, Turku University Hospital, and University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Elina Tenhu
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Johanna Teräsjärvi
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Pieter van Gageldonk
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands
| | - Annemarie Buisman
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands
| | - Jussi Mertsola
- Department of Paediatric and Adolescent Medicine, Turku University Hospital, and University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
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20
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Jiang Y, Lin Y, Fu W, Zhong R, He Q, He J, Liang W. 85P The impact of adjuvant EGFR-TKIs and 14-gene molecular assay on patients with stage I non-small cell lung cancer harboring sensitive EGFR mutations. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00340-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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21
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Teräsjärvi JT, Toivonen L, Mertsola J, Peltola V, He Q. Association of
Toll‐like receptor 2
rs111200466 polymorphism with low serum levels of
IL
‐33 in early childhood. APMIS 2023; 131:303-309. [PMID: 37002184 DOI: 10.1111/apm.13314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023]
Abstract
TLR2 is one of 10 human TLRs, which plays an important role in the recognition of pathogens and activation of the innate immunity via NF-κB pathway. NF-κB activation induces the expression of various pro-inflammatory genes. This study examines the effect of TLR2 polymorphisms on the production of blood pro-inflammatory cytokines in healthy Finnish children. One hundred forty-six children who participated in a prospective observational birth cohort study in Turku, Finland, were included. DNA samples were analysed by PCR-based sequencing for two common TLR2 polymorphisms (rs5743708 Arg753Gln; rs111200466-196 to -174del). Serum concentrations of IL-33, IL-31, IL-17A and IL-17F were measured by multiplex immunoassay and sST2 by ELISA in children at the age of 13 months. Children with variant type of TLR2 rs111200466 (ins/del or del/del) had significantly lower level of serum IL-33 (median, 0.00 pg/mL; IQR 0.00-17.60) than those with ins/ins type of TLR2 (19.81 pg/mL; IQR 0.00-51.78) (p = 0.0001). Almost all study subjects had serum concentrations of IL-17A, IL-17F and IL-31 below the detection limit and therefore not included in the final analyses. No differences in levels of above four cytokines and sST2 were found between TLR2 rs5743708 genotypes (GG and GA). Our results indicated that the TLR2 rs111200466 deletion was associated with a low level of serum IL-33, suggesting that the polymorphism may impair the production of IL-33.
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Affiliation(s)
- Johanna T Teräsjärvi
- Institute of Biomedicine, Research Centre for Infections and Immunity, Turku, Finland
| | - Laura Toivonen
- Department of Paediatrics and Adolescent Medicine, Finland and Institute of Biomedicine, Research Centre for Infections and Immunity, Turku University Hospital, Turku, Finland
| | - Jussi Mertsola
- Department of Paediatrics and Adolescent Medicine, Finland and Institute of Biomedicine, Research Centre for Infections and Immunity, Turku University Hospital, Turku, Finland
| | - Ville Peltola
- Department of Paediatrics and Adolescent Medicine, Finland and Institute of Biomedicine, Research Centre for Infections and Immunity, Turku University Hospital, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Centre for Infections and Immunity, Turku, Finland
- InFLAMES Research Flagship Centre, University of Turku, Turku, Finland
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22
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Zhang N, Mou D, Li T, Chen Z, Ma C, Liang L, He Q. Integrated analysis reveals important differences in the gut and oropharyngeal microbiota between children with mild and severe hand, foot and mouth disease. Emerg Microbes Infect 2023; 12:2192819. [PMID: 36927539 PMCID: PMC10071984 DOI: 10.1080/22221751.2023.2192819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Little is known about alternation and difference in gut microbiota between patients with mild and severe hand, foot and mouth disease (HFMD). We investigated the differences in gut and oropharynx microbiotas between mild and severe HFMD in young children and changes in bacterial profiles as the disease progresses from acute to convalescent phase. Forty-two patients with confirmed HFMD were studied, among which thirty-two had severe HFMD and ten had mild HFMD. First rectal swabs were collected from all patients at an average of 2 days (acute phase) after the onset of symptoms, and second rectal swabs were collected from 8 severe patients at day 9 (convalescent phase) after the onset. Oropharyngeal swabs were obtained from 10 patients in the acute phase and 6 in the convalescent phase. 16S rRNA sequencing was performed for all 70 samples. Compared with mild HFMD, severe HFMD exhibited significantly decreased diversity and richness of gut microbiota. Gut microbiota bacterial profiles observed in the acute and convalescent phases resembled each other, but differed from those in mild cases. Additionally, 50% of patients with severe HFMD in the acute phase harbored a dominant pathobiontic bacterial genus. However, none of patients with mild HFMD had such bacteria. Similar bacterial compositions in oropharynx microbiota were detected between mild and severe cases. Our findings indicate that severe HFMD exhibits significantly impaired diversity of gut microbiota and frequent gut and oropharyngeal inflammation-inducing bacteria. However, the results should be interpreted with caution as the number of the subjects was limited.
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Affiliation(s)
- Nan Zhang
- Department of Medical Microbiology, Capital Medical University. No. 10 Xi Tou Tiao, You'an Meng Wai, Feng Tai District, Beijing 100069, China (N.Z.: ; Z.C.: )
| | - Danlei Mou
- Department of Infectious Disease, Beijing Youan Hospital, Capital Medical University, No. 8 Xi TouTiao, You'an Men Wai, Feng Tai District, Beijing 100069, China (D.M.: ; T.L.: ; C.M.: ; L.L.: )
| | - Tongzeng Li
- Department of Infectious Disease, Beijing Youan Hospital, Capital Medical University, No. 8 Xi TouTiao, You'an Men Wai, Feng Tai District, Beijing 100069, China (D.M.: ; T.L.: ; C.M.: ; L.L.: )
| | - Zhiyun Chen
- Department of Medical Microbiology, Capital Medical University. No. 10 Xi Tou Tiao, You'an Meng Wai, Feng Tai District, Beijing 100069, China (N.Z.: ; Z.C.: )
| | - Chunhua Ma
- Department of Infectious Disease, Beijing Youan Hospital, Capital Medical University, No. 8 Xi TouTiao, You'an Men Wai, Feng Tai District, Beijing 100069, China (D.M.: ; T.L.: ; C.M.: ; L.L.: )
| | - Lianchun Liang
- Department of Infectious Disease, Beijing Youan Hospital, Capital Medical University, No. 8 Xi TouTiao, You'an Men Wai, Feng Tai District, Beijing 100069, China (D.M.: ; T.L.: ; C.M.: ; L.L.: )
| | - Qiushui He
- Department of Medical Microbiology, Capital Medical University. No. 10 Xi Tou Tiao, You'an Meng Wai, Feng Tai District, Beijing 100069, China (N.Z.: ; Z.C.: ).,Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, Turku 20520, Finland (Q.H.: )
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23
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Keech C, Miller VE, Rizzardi B, Hoyle C, Pryor MJ, Ferrand J, Solovay K, Thalen M, Noviello S, Goldstein P, Gorringe A, Cavell B, He Q, Barkoff AM, Rubin K, Locht C. Immunogenicity and safety of BPZE1, an intranasal live attenuated pertussis vaccine, versus tetanus-diphtheria-acellular pertussis vaccine: a randomised, double-blind, phase 2b trial. Lancet 2023; 401:843-855. [PMID: 36906345 DOI: 10.1016/s0140-6736(22)02644-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/08/2022] [Accepted: 12/19/2022] [Indexed: 03/11/2023]
Abstract
BACKGROUND Bordetella pertussis epidemics persist as transmission remains unabated despite high acellular pertussis vaccination rates. BPZE1, a live attenuated intranasal pertussis vaccine, was designed to prevent B pertussis infection and disease. We aimed to assess the immunogenicity and safety of BPZE1 compared with the tetanus-diphtheria-acellular pertussis vaccine (Tdap). METHODS In this double-blind, phase 2b trial at three research centres in the USA, healthy adults aged 18-50 years were randomly assigned (2:2:1:1) via a permuted block randomisation schedule to receive BPZE1 vaccination followed by BPZE1 attenuated challenge, BPZE1 vaccination followed by placebo challenge, Tdap followed by BPZE1 attenuated challenge, or Tdap followed by placebo challenge. On day 1, lyophilised BPZE1 was reconstituted with sterile water and given intranasally (0·4 mL delivered to each nostril), whereas Tdap was given intramuscularly. To maintain masking, participants in the BPZE1 groups received an intramuscular saline injection, and those in the Tdap groups received intranasal lyophilised placebo buffer. The attenuated challenge took place on day 85. The primary immunogenicity endpoint was the proportion of participants achieving nasal secretory IgA seroconversion against at least one B pertussis antigen on day 29 or day 113. Reactogenicity was assessed up to 7 days after vaccination and challenge, and adverse events were recorded for 28 days after vaccination and challenge. Serious adverse events were monitored throughout the study. This trial is registered with ClinicalTrials.gov, NCT03942406. FINDINGS Between June 17 and Oct 3, 2019, 458 participants were screened and 280 were randomly assigned to the main cohort: 92 to the BPZE1-BPZE1 group, 92 to the BPZE1-placebo group, 46 to the Tdap-BPZE1 group, and 50 to the Tdap-placebo group. Seroconversion of at least one B pertussis-specific nasal secretory IgA was recorded in 79 (94% [95% CI 87-98]) of 84 participants in the BPZE1-BPZE1 group, 89 (95% [88-98]) of 94 in the BPZE1-placebo group, 38 (90% [77-97]) of 42 in the Tdap-BPZE1 group, and 42 (93% [82-99]) of 45 in the Tdap-placebo group. BPZE1 induced broad and consistent B pertussis-specific mucosal secretory IgA responses, whereas Tdap did not induce consistent mucosal secretory IgA responses. Both vaccines were well tolerated, with mild reactogenicity and no serious adverse events related to study vaccination. INTERPRETATION BPZE1 induced nasal mucosal immunity and produced functional serum responses. BPZE1 has the potential to avert B pertussis infections, which ultimately could lead to reduced transmission and diminished epidemic cycles. These results should be confirmed in large phase 3 trials. FUNDING ILiAD Biotechnologies.
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Affiliation(s)
| | - Vicki E Miller
- DM Clinical Research, Texas Center for Drug Development, Houston, TX, USA
| | | | | | | | | | | | - Marcel Thalen
- ILiAD Biotechnologies, Weston, FL, USA; BioLyo Technologies, Ghent, Belgium
| | | | | | - Andrew Gorringe
- United Kingdom Health Security Agency, Porton Down, Salisbury, UK
| | - Breeze Cavell
- United Kingdom Health Security Agency, Porton Down, Salisbury, UK
| | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland
| | | | | | - Camille Locht
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR9017-CIIL-Centre for Infection and Immunity of Lille, Lille, France
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24
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Li H, He Q, Zhou GM, Wang WJ, Shi PP, Wang ZH. Potential biomarkers for the prognosis and treatment of HCC immunotherapy. Eur Rev Med Pharmacol Sci 2023; 27:2027-2046. [PMID: 36930502 DOI: 10.26355/eurrev_202303_31569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
OBJECTIVE The liver is a unique organ containing large populations of immune cells. Immunotherapy for liver cancer is a promising yet particularly challenging method. Therefore, it harbors great significance for the identification of immune-related subtypes and the potential therapeutic targets for hepatocellular carcinoma (HCC). MATERIALS AND METHODS Firstly, we classified the HCC samples downloaded from the dataset of Cancer Genome Atlas (TCGA) into two clusters based on the immune cell infiltration. Thereafter, we identified the significant module and regulatory factors using the weighted gene co-expression network analysis (WGCNA). The immune competence of the regulatory factors was delineated through the ESTIMATE algorithm, the analysis of the tumor microenvironment, and pan-cancer analysis. In the single-cell RNA sequencing analysis, we further explored the immune competence of regulatory factors. We also collected the potential drugs targeting the regulatory factors. In addition, we constructed lncRNA-miRNA-mRNA interaction regulatory networks. Finally, western blot and quantitative real-time polymerase chain reaction (qRT-PCR) were conducted to verify the protein expression of regulatory genes in HCC cell lines and tissues. RESULTS According to the immune cell infiltration, two immune-related subtypes-cluster 1 and cluster 2-were found. Patients in cluster 2 had a more significant immune infiltration than in cluster 1. Afterward, six significant regulatory genes were identified through WGCNA, and the expression in cluster 2 was high in cluster 1. We performed a comprehensive analysis to clarify the immune signature. The results showed that the six genes had significant immunological competence. Moreover, the expression of the six genes was similar to the subtypes' classification. In the analysis of the prognosis value, patients in cluster 2 had a better prognosis. In addition, the lncRNA in the lncRNA-miRNA-mRNA interaction regulatory networks was located in the nucleus and cytoplasm. In the single-cell RNA sequencing analysis, the six genes were related to the immune cell. We also identified potential drugs for CD6 and CLEC12A, which may provide potential therapeutic drugs. Finally, the regulatory genes were verified in the western blot and quantitative real-time polymerase chain reaction. CONCLUSIONS The classification into two clusters based on the immune cell infiltration may provide a promising prospect for HCC through immunotherapy. The six regulatory genes may be potential therapeutic targets in the treatment of HCC.
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Affiliation(s)
- H Li
- State Key Laboratory of Proteomics, National Center for Protein Sciences at Beijing, Beijing Institute of Radiation Medicine, Beijing, China.
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25
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Knuutila A, Duncan J, Li F, Eletu S, Litt D, Fry N, He Q. Oral fluid-based lateral flow point-of-care assays for pertussis serology. J Med Microbiol 2023; 72. [PMID: 36763084 DOI: 10.1099/jmm.0.001668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Introduction. Current serological diagnosis of pertussis is usually performed by ELISA, which is typically performed in larger diagnostic or reference laboratories, requires trained staff, and due to sample batching may have longer turnaround times.Hypothesis and Aim. A rapid point-of-care (POC) assay for pertussis serology would aid in both the diagnosis and surveillance of the disease.Methodology. A quantitative lateral flow (LF)-based immunoassay with fluorescent Eu-nanoparticle reporters was developed for the detection of anti-pertussis toxin (PT) and adenylate cyclase toxin (ACT) antibodies from oral fluid samples (N=100), from suspected pertussis cases with respiratory symptoms.Results. LF assay results were compared to those obtained with anti-PT IgG oral fluid ELISA. For an ELISA cut-off value of 50 arbitrary units, the overall agreement between the assays was 91/100 (91 %), the sensitivity was 63/70 (90 %) and the specificity was 28/30 (93 %). No ACT-specific antibodies were detected from oral fluid samples; however, the signal readout positively correlated to those patients with high anti-PT IgG antibodies.Conclusion. The developed LF assay was a specific, sensitive and rapid test for serological diagnosis of pertussis with anti-PT antibodies and is a suitable POC test using oral fluid samples.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, Turku, Finland
| | - John Duncan
- Vaccine Preventable Bacteria Section, UK Health Security Agency, London, UK
| | - Fu Li
- Vaccine Preventable Bacteria Section, UK Health Security Agency, London, UK
| | - Seyi Eletu
- Vaccine Preventable Bacteria Section, UK Health Security Agency, London, UK
| | - David Litt
- Vaccine Preventable Bacteria Section, UK Health Security Agency, London, UK
| | - Norman Fry
- Vaccine Preventable Bacteria Section, UK Health Security Agency, London, UK.,Immunisation and Vaccine Preventable Diseases, UK Health Security Agency, London, UK
| | - Qiushui He
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Kiinamyllynkatu 10, Turku, Finland
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26
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Swanson CS, Dhand R, Cao L, Ferris J, Elder CS, He Q. Microbiome-scale analysis of aerosol facemask contamination during nebulization therapy in hospital. J Hosp Infect 2023; 134:80-88. [PMID: 36690253 DOI: 10.1016/j.jhin.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/31/2022] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
BACKGROUND Microbial contamination of aerosol facemasks could be a source of nosocomial infections during nebulization therapy in hospital, prompting efforts to identify these contaminants. Identification of micro-organisms in medical devices has traditionally relied on culture-dependent methods, which are incapable of detecting the majority of these microbial contaminants. This challenge could be overcome with culture-independent sequencing-based techniques that are suited for the profiling of complex microbiomes. AIM To characterize the microbial contaminants in aerosol facemasks used for nebulization therapy, and identify factors influencing the composition of these microbial contaminants with the acquisition and analysis of comprehensive microbiome-scale profiles using culture-independent high-throughput sequencing. METHODS Used aerosol facemasks collected from hospitalized patients were analysed with culture-independent 16S rRNA gene-based amplicon sequencing to acquire microbiome-scale comprehensive profiles of the microbial contaminants. Microbiome-based analysis was performed to identify potential sources of microbial contamination in facemasks. FINDINGS Culture-independent high-throughput sequencing was demonstrated for the capacity to acquire microbiome-scale profiles of microbial contaminants on aerosol facemasks. Microbial source identification enabled by the microbiome-scale profiles linked microbial contamination on aerosol facemasks to the human skin and oral microbiota. Antibiotic treatment with levofloxacin was found to reduce contamination of the facemasks by oral microbiota. CONCLUSION Sequencing-based microbiome-scale analysis is capable of providing comprehensive characterization of microbial contamination in aerosol facemasks. Insight gained from microbiome-scale analysis facilitates the development of effective strategies for the prevention and mitigation of the risk of nosocomial infections arising from exposure to microbial contamination of aerosol facemasks, such as targeted elimination of potential sources of contamination.
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Affiliation(s)
- C S Swanson
- Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA
| | - R Dhand
- Department of Medicine, The University of Tennessee Graduate School of Medicine, Knoxville, TN, USA
| | - L Cao
- Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA
| | - J Ferris
- Department of Medicine, The University of Tennessee Graduate School of Medicine, Knoxville, TN, USA
| | - C S Elder
- Respiratory Therapy Department, The University of Tennessee Medical Center, Knoxville, TN, USA
| | - Q He
- Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA; Institute for a Secure and Sustainable Environment, The University of Tennessee, Knoxville, TN, USA.
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27
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Teräsjärvi JT, Toivonen L, Mertsola J, Peltola V, He Q. Low serum soluble ST2 level in early childhood is associated with the risk for asthma at 7 years of age. Allergol Int 2023; 72:173-175. [PMID: 35965191 DOI: 10.1016/j.alit.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/27/2022] [Accepted: 07/08/2022] [Indexed: 01/25/2023] Open
Affiliation(s)
- Johanna T Teräsjärvi
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Laura Toivonen
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Jussi Mertsola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Ville Peltola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Centre for Infections and Immunity, University of Turku, Turku, Finland; InFLAMES Research Flagship Centre, University of Turku, Turku, Finland.
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28
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Knuutila A, Versteegen P, Barkoff AM, van Gageldonk P, Mertsola J, Berbers G, He Q. Pertussis toxin neutralizing antibody response after an acellular booster vaccination in Dutch and Finnish participants of different age groups. Emerg Microbes Infect 2022; 11:956-963. [PMID: 35286231 PMCID: PMC8973383 DOI: 10.1080/22221751.2022.2053364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pertussis incidence has increased in many countries and the disease occurs among all age groups, suggesting the need for booster immunizations through life. In addition to determining the concentration of anti-pertussis toxin (PT) antibodies, the ability of PT neutralizing antibodies (PTNAs) could be used to assess vaccine responses. Altogether 258 participants [7–10-year-old (N = 73), 11–15-year-old (N = 85), 20–35-year-old (N = 50) and 60–70-year-old (N = 50)] were included. Sera were collected before, one month, and one year after a single dose of a three pertussis component containing acellular pertussis vaccine. The adolescents were primed in childhood either by acellular or whole-cell vaccination. PTNA titres were determined by a Chinese hamster ovary cell assay and anti-PT IgG/IgA antibody concentrations by multiplex immunoassay. In all age groups, a significant increase in levels of PTNAs and anti-PT IgG was observed one month after vaccination and remained at least two-fold higher one year post-booster, in comparison to pre-booster. Young adults had the lowest response. The strongest increase in PTNAs was observed in participants who had ≥10 IU/mL concentration of anti-PT IgG antibodies pre-booster. At pre-booster, whole-cell-primed adolescents had higher PTNAs than acellular-primed peers (p = 0.047). One year post-booster, the Finnish whole-cell-primed adolescents had a higher level of PTNAs than acellular-primed adolescents (p = 0.049), however, this was not observed in Dutch adolescents. In conclusion, PTNAs increased after vaccination in all age groups, and the strongest increase was related to the presence of high pre-booster antibodies.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Pauline Versteegen
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | | | - Pieter van Gageldonk
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Jussi Mertsola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | - Guy Berbers
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | -
- Institute of Biomedicine, University of Turku, Turku, Finland
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29
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Jing Q, Zhang Y, Liu L, Xi F, Li Y, Li X, Yang D, Jiang S, Geng H, Chen X, Li S, Gao J, He Q, Li J, Tan Y, Yu Y, Jin K, Wu Q. SrB 4O 7:Sm 2+ fluorescence improves the accuracy of temperature measurements in externally heated diamond anvil cells. Rev Sci Instrum 2022; 93:123904. [PMID: 36586911 DOI: 10.1063/5.0099000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
The sample temperature in an externally heated diamond anvil cell (EHDAC) is generally measured by a thermocouple fixed to the pavilions of diamond anvils, ignoring the temperature difference between the thermocouple and the sample. However, the measured temperature depends strongly on the placement of the thermocouple, thus seriously reducing the accuracy of the temperature measurement and hindering the use of EHDAC in experiments requiring precise temperature measurements, such as high-pressure melting and phase-diagram investigations. In this study, the full width at half maximum (FWHM) of the 0-0 fluorescence line of strontium borate doped with bivalent samarium ions (SrBO4:Sm2+, SBO) is found to be highly sensitive to temperature and responds extremely rapidly to small temperature fluctuations, which makes it an excellent temperature indicator. We propose herein a precise method to measure temperature that involves measuring the FWHM of the 0-0 fluorescence line of SBO. This method is used to correct the temperature discrepancy between the thermocouple and the sample in an EHDAC. These corrections significantly improve the accuracy of temperature measurements in EHDACs. The accuracy of this method is verified by measuring the melting point of tin at ambient pressure. We also use this method to produce a tentative elementary phase diagram of tin up to 109 GPa and 495 K. This method facilitates high-pressure, high-temperature experiments demanding accurate temperature measurements in various disciplines. The study also discusses, in general, the experimental approach to measuring temperature.
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Affiliation(s)
- Q Jing
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Y Zhang
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - L Liu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - F Xi
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Y Li
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
| | - X Li
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
| | - D Yang
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
| | - S Jiang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - H Geng
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - X Chen
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - S Li
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - J Gao
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Q He
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - J Li
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Y Tan
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Y Yu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - K Jin
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
| | - Q Wu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, Sichuan, China
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Xu W, Xing XY, Xu JQ, Cao D, He Q, Dai D, Jia SC, Cheng QY, Lyu YL, Zhang L, Liang L, Xie GD, Chen YJ, Wang HD, Liu ZR. [A cross-sectional study of prevalence of chronic kidney disease and related factors in adults in Anhui province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1717-1723. [PMID: 36444453 DOI: 10.3760/cma.j.cn112338-20220314-00185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To understand the prevalence of chronic kidney disease (CKD) and related factors in adults in Anhui province based on the data of Chinese Chronic Diseases and Nutrition Surveillance program (2018) in Anhui. Methods: Multi-stage stratified cluster random sampling was used to select participants aged ≥18 years. Moreover, questionnaire survey, body measurements and laboratory tests were conducted. The complex weighting method was used to estimate the prevalence of CKD in residents with different characteristics, and complex sampling data logistic regression model was used for multivariate analysis to identify related risk factors. Results: A total of 7 181 participants were included. The overall prevalence of CKD was 11.06% in adults in Anhui, and the prevalence was 12.49% in women and 9.59% in men (P<0.05). The moderate, high and very high risk for CKD progression were 8.66%, 2.02% and 0.38%, respectively. Multivariate analysis showed that age (OR=1.03, 95%CI: 1.00-1.05), BMI (OR=1.05, 95%CI: 1.01-1.09), being woman (OR=1.38,95%CI: 1.22-1.55), hypertension (OR=2.50, 95%CI: 1.76-3.56), diabetes (OR=2.28, 95%CI: 1.51-3.43), dyslipidemia (OR=1.26, 95%CI: 1.11-1.43) and hyperuricemia (OR=2.16, 95%CI: 1.68-2.78) were risk factors for CKD. Conclusion: The prevalence of CKD in adults in Anhui was relatively high and age, gender, BMI, hypertension, diabetes, dyslipidemia and hyperuricemia were found to be associated with the prevalence of CKD. To prevent CKD and its complications, attention should be paid to the management of related risk factors, including overweight and obesity, hypertension, diabetes, dyslipidemia and hyperuricemia.
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Affiliation(s)
- W Xu
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - X Y Xing
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - J Q Xu
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - D Cao
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - Q He
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - D Dai
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - S C Jia
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - Q Y Cheng
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - Y L Lyu
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - L Zhang
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - L Liang
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - G D Xie
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - Y J Chen
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - H D Wang
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
| | - Z R Liu
- Department of Chronic Non-communicable Diseases, Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Provincial, Hefei 230601, China
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Ivaska L, Barkoff AM, Mertsola J, He Q. Macrolide Resistance in Bordetella pertussis: Current Situation and Future Challenges. Antibiotics (Basel) 2022; 11:1570. [PMID: 36358225 PMCID: PMC9686491 DOI: 10.3390/antibiotics11111570] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 10/31/2022] [Accepted: 11/05/2022] [Indexed: 01/19/2024] Open
Abstract
Pertussis is a highly contagious respiratory infection caused by Bordetella pertussis bacterium. The mainstay of treatment is macrolide antibiotics that reduce transmissibility, shorten the duration of symptoms and decrease mortality in infants. Recently, the macrolide resistance of B. pertussis has been reported globally but is especially widespread in mainland China. In this review, we aim to summarise the current understanding of the epidemiology, resistance mechanisms and clinical implications of B. pertussis macrolide resistance. Since the first appearance of macrolide-resistant B. pertussis in Arizona, USA, in 1994, only sporadic cases have been reported outside China. In certain parts of China, on the other hand, up to 70-100% of the recent clinical isolates have been found to be macrolide resistant. Reasons for macrolide resistance being centred upon China during the last decade can only be speculated on, but the dominant B. pertussis lineage is different between China and most of the high-income countries. It seems evident that efforts to increase awareness, guide molecular epidemiological surveillance and carry out systematic screening of B. pertussis positive samples for macrolide resistance should be implemented globally. In addition, practices to improve the clinical care of infants with pertussis caused by resistant strains should be studied vigorously.
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Affiliation(s)
- Lauri Ivaska
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, 20521 Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, 20520 Turku, Finland
| | - Alex-Mikael Barkoff
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, 20520 Turku, Finland
| | - Jussi Mertsola
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, 20521 Turku, Finland
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, 20520 Turku, Finland
| | - Qiushui He
- InFLAMES Research Flagship Center, University of Turku, 20520 Turku, Finland
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, 20520 Turku, Finland
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32
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Gürsoy M, Könönen E, He Q, Liukkonen A, Huumonen S, Gürsoy UK. Toll-like receptor-1, -2, and -6 genotypes in relation to salivary human beta-defensin-1, -2, -3 and human neutrophilic peptide-1. J Clin Periodontol 2022; 49:1185-1191. [PMID: 35817420 PMCID: PMC9796255 DOI: 10.1111/jcpe.13697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/07/2022] [Accepted: 07/06/2022] [Indexed: 01/01/2023]
Abstract
AIM To examine whether functional gene polymorphisms of toll-like receptor (TLR)1, TLR2, and TLR6 are related to the salivary concentrations of human beta-defensins (hBDs)-1, -2, -3, and human neutrophilic peptide (HNP)-1. MATERIALS AND METHODS Polymorphisms of TLR1 (rs5743618), TLR2 (rs5743708), and TLR6 (rs5743810) were genotyped by PCR-based pyrosequencing from the salivary samples of 230 adults. Salivary hBD-1, -2, -3, and HNP-1 concentrations were measured using enzyme-linked immunosorbent assay. General and periodontal health examinations, including panoramic radiography, were available for all participants. RESULTS The genotype frequencies for wild types and variant types were as follows: 66.5% and 33.5% for TLR1, 95.5% and 4.5% for TLR2, and 25.1% and 74.9% for TLR6, respectively. The TLR2 heterozygote variant group exhibited higher salivary hBD-2 concentrations than the TLR2 wild-type group (p = .038). On the contrary, elevated hBD-2 concentrations were detected in the TLR6 wild-type group compared with the TLR6 heterozygote and homozygote variant group (p = .028). The associations between TLR6 genotypes and salivary hBD-2 concentrations remained significant after adjusting them for periodontal status, age, and smoking. CONCLUSION hBD-2 concentrations in saliva are related to TLR2 and TLR6 polymorphisms, but only the TLR6 genotype seems to exhibit an independent association with the salivary hBD-2 concentrations.
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Affiliation(s)
- Mervi Gürsoy
- Department of Periodontology, Institute of DentistryUniversity of TurkuTurkuFinland,Welfare DivisionOral Health CareTurkuFinland
| | - Eija Könönen
- Department of Periodontology, Institute of DentistryUniversity of TurkuTurkuFinland
| | - Qiushui He
- Research Center for Infections and Immunity, Institute of BiomedicineUniversity of TurkuTurkuFinland,InFLAMES Research Flagship CentreUniversity of TurkuTurkuFinland
| | - Anna Liukkonen
- Department of Periodontology, Institute of DentistryUniversity of TurkuTurkuFinland
| | - Sisko Huumonen
- Institute of DentistryUniversity of Eastern FinlandKuopioFinland,Department of Clinical RadiologyKuopio University HospitalKuopioFinland
| | - Ulvi Kahraman Gürsoy
- Department of Periodontology, Institute of DentistryUniversity of TurkuTurkuFinland
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33
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Knuutila A, Rautanen C, Barkoff AM, Mertsola J, He Q. Whole blood based point-of-care assay for the detection of anti-pertussis toxin IgG antibodies. J Immunol Methods 2022; 510:113361. [PMID: 36179606 DOI: 10.1016/j.jim.2022.113361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/30/2022] [Accepted: 09/21/2022] [Indexed: 12/31/2022]
Abstract
Current serological diagnosis of pertussis is usually done by ELISA to determine serum specific anti-pertussis toxin (PT) IgG antibodies. However, the ELISAs are often central-laboratory based, require trained staff, and have long turnaround times. A rapid point-of-care (POC) assay for pertussis serology would aid in both diagnosis and surveillance of the disease. In this study, a quantitative lateral flow assay (LFA) with fluorescent Eu-nanoparticle reporters was used for the detection of anti-PT antibodies from whole blood. The assay was evaluated by testing overall 141 samples including 25 before and 116 one month after acellular pertussis booster vaccination. LFA results were compared to those obtained with standardized anti-PT IgG ELISAs with paired serum samples. Correlation between the assays was high (Pearson R = 0.832), and the achieved analytical sensitivity of the LFA was 29 IU/mL, which would be sufficient for clinically relevant cutoffs for determining recent infections. The paired samples, collected pre- and post-booster, demonstrated a significant increase in anti-PT IgG antibodies similar to that detected by ELISA. The developed LFA opens up several alternatives for a suitable POC test also in middle- and low-income countries.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Carita Rautanen
- Department of Life Technologies, University of Turku, Turku, Finland
| | - Alex-Mikael Barkoff
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
| | - Jussi Mertsola
- Department of Pediatric and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland; InFLAMES Research Flagship Center, University of Turku, Turku, Finland.
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34
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Fu J, Sun DM, Zhang Y, Huang YF, He Q, Zhang J. [A case of restrictive cardiomyopathy associated with new TPM1 gene mutation]. Zhonghua Er Ke Za Zhi 2022; 60:1077-1078. [PMID: 36207858 DOI: 10.3760/cma.j.cn112140-20220118-00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- J Fu
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
| | - D M Sun
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
| | - Y Zhang
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
| | - Y F Huang
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
| | - Q He
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
| | - J Zhang
- Department of Cardiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China
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35
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van der Pan K, de Bruin-Versteeg S, Damasceno D, Hernández-Delgado A, van der Sluijs-Gelling AJ, van den Bossche WBL, de Laat IF, Díez P, Naber BAE, Diks AM, Berkowska MA, de Mooij B, Groenland RJ, de Bie FJ, Khatri I, Kassem S, de Jager AL, Louis A, Almeida J, van Gaans-van den Brink JAM, Barkoff AM, He Q, Ferwerda G, Versteegen P, Berbers GAM, Orfao A, van Dongen JJM, Teodosio C. Development of a standardized and validated flow cytometry approach for monitoring of innate myeloid immune cells in human blood. Front Immunol 2022; 13:935879. [PMID: 36189252 PMCID: PMC9519388 DOI: 10.3389/fimmu.2022.935879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Innate myeloid cell (IMC) populations form an essential part of innate immunity. Flow cytometric (FCM) monitoring of IMCs in peripheral blood (PB) has great clinical potential for disease monitoring due to their role in maintenance of tissue homeostasis and ability to sense micro-environmental changes, such as inflammatory processes and tissue damage. However, the lack of standardized and validated approaches has hampered broad clinical implementation. For accurate identification and separation of IMC populations, 62 antibodies against 44 different proteins were evaluated. In multiple rounds of EuroFlow-based design-testing-evaluation-redesign, finally 16 antibodies were selected for their non-redundancy and separation power. Accordingly, two antibody combinations were designed for fast, sensitive, and reproducible FCM monitoring of IMC populations in PB in clinical settings (11-color; 13 antibodies) and translational research (14-color; 16 antibodies). Performance of pre-analytical and analytical variables among different instruments, together with optimized post-analytical data analysis and reference values were assessed. Overall, 265 blood samples were used for design and validation of the antibody combinations and in vitro functional assays, as well as for assessing the impact of sample preparation procedures and conditions. The two (11- and 14-color) antibody combinations allowed for robust and sensitive detection of 19 and 23 IMC populations, respectively. Highly reproducible identification and enumeration of IMC populations was achieved, independently of anticoagulant, type of FCM instrument and center, particularly when database/software-guided automated (vs. manual “expert-based”) gating was used. Whereas no significant changes were observed in identification of IMC populations for up to 24h delayed sample processing, a significant impact was observed in their absolute counts after >12h delay. Therefore, accurate identification and quantitation of IMC populations requires sample processing on the same day. Significantly different counts were observed in PB for multiple IMC populations according to age and sex. Consequently, PB samples from 116 healthy donors (8-69 years) were used for collecting age and sex related reference values for all IMC populations. In summary, the two antibody combinations and FCM approach allow for rapid, standardized, automated and reproducible identification of 19 and 23 IMC populations in PB, suited for monitoring of innate immune responses in clinical and translational research settings.
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Affiliation(s)
- Kyra van der Pan
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Daniela Damasceno
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Alejandro Hernández-Delgado
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | | | - Wouter B. L. van den Bossche
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- Department of Immunology, Department of Neurosurgery, Brain Tumor Center, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Inge F. de Laat
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Paula Díez
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Annieck M. Diks
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Bas de Mooij
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Rick J. Groenland
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Fenna J. de Bie
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Indu Khatri
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Sara Kassem
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Anniek L. de Jager
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Alesha Louis
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Julia Almeida
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | | | - Alex-Mikael Barkoff
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku (UTU), Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku (UTU), Turku, Finland
| | - Gerben Ferwerda
- Section of Paediatric Infectious Diseases, Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Nijmegen, Netherlands
| | - Pauline Versteegen
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Guy A. M. Berbers
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Alberto Orfao
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Jacques J. M. van Dongen
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- *Correspondence: Jacques J. M. van Dongen,
| | - Cristina Teodosio
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- Translational and Clinical Research Program, Cancer Research Center (IBMCC; University of Salamanca - CSIC), Cytometry Service, NUCLEUS, Department of Medicine, University of Salamanca (Universidad de Salamanca, and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
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Chen JM, Fang JG, Zhong YS, Lin LZ, Hou HZ, Ma L, Feng SZ, He Q, Shi M, Lian R, Wang XX, Shen X. [Risk factors for recurrence and survival analysis in locally advanced T4a papillary thyroid carcinoma after R0 resection]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1044-1051. [PMID: 36177557 DOI: 10.3760/cma.j.cn115330-20220427-00228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the treatment outcomes and risk factors of postoperative recurrence in T4a papillary thyroid carcinoma (PTC). Methods: A total of 185 patients with locally advanced T4a PTC treated in Beijing Tongren Hospital, Capital Medical University from January 2006 to December 2019 were retrospectively analyzed, including 127 females and 58 males, aged between 18 and 80 years, with 74 patients aged over 55 years. According to AJCC thyroid tumor staging, 111 cases were stage I (T4aN0M0 26 cases, T4aN1aM0 35 cases, and T4aN1bM0 50 cases) and 74 cases were stage Ⅲ (T4aN0M0 29 cases, T4aN1aM0 19 cases, and T4aN1bM0 26 cases). Kaplan-Meier method was used to calculate the overall survival and the recurrence-free rate, and univariate and multivariate logistic regression analyses on the clinical data were performed. Results: Recurrent laryngeal nerve invasion was observed in 150 cases, trachea invasion in 61 cases, esophagus invasion in 30 cases, and laryngeal structure invasion in 10 cases. Postoperative follow-up periods were 24-144 months, with an average of 68.29 months. Of the 185 patients, 18 (9.73%) had recurrences or metastases, including 9 cases (4.86%) died of recurrences or metastases. The 5-year and 10-year overall survival rates were respectively 95.21% and 93.10%. The 5-year and 10-year disease-free survival rates were respectively 89.65% and 86.85%. Univariate analysis showed that age of onset, tumor diameter, preoperative recurrent laryngeal nerve palsy, esophageal invasion and cervical lymph node metastasis were the risk factors for postoperative recurrence of T4a PTC(all P<0.05). Multivariate analysis showed that preoperative recurrent laryngeal nerve palsy (OR=3.27, 95%CI: 1.11-9.61, P=0.032) and lateral cervical lymph node metastasis (OR=4.71, 95%CI: 1.19-18.71, P=0.027) were independent risk factors for T4a PTC recurrence. Survival rate of patients with T4a PTC involving only the recurrent laryngeal nerve or the outer tracheal membrane was significantly better than that of patients with tracheal invasion (P<0.05). Conclusions: T4a PTC patients with R0 resection can still achieve good efficacy. Preoperative recurrent laryngeal nerve palsy and lateral cervical lymph node metastasis are independent risk factor for postoperative recurrence in the patients.
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Affiliation(s)
- J M Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - J G Fang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y S Zhong
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Z Lin
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Z Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - S Z Feng
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Q He
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - M Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - R Lian
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - X X Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Xixi Shen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Yang M, Zhu X, Shen Y, He Q, Qin Y, Shao Y, Yuan L, Ye H. [High expression of MYBL2 promotes progression and predicts a poor survival outcome of prostate cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1109-1118. [PMID: 36073208 DOI: 10.12122/j.issn.1673-4254.2022.08.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the correlation of MYB proto-oncogene like 2 (MYBL2) with biological behaviors and clinical prognosis of prostate cancer (PCa). METHODS We detected Mybl2 mRNA expression in 45 pairs of PCa and adjacent tissues using real-time quantitative PCR, and analyzed the correlation of high (23 cases) and low expression (22 cases) of Mybl2 with clinicopathological features and prognosis of the patients using nonparametric test, Kaplan-Meier survival analysis and univariate and multivariate Cox regression. The results were verified by analysis of the data from Cancer Genome Atlas (TCGA) microarray database, and the molecular pathways were identified by gene set enrichment analysis (GSEA). The CIBERPORT algorithm was used to identify the correlations between Mybl2 expression and tumor microenvironment of PCa. We also tested the effects of MYBL2 knockdown on proliferation and invasion of PCa cell lines using cell counting kit-8 and Transwell assays and observed the growth of PC3 cell xenograft with MYBL2 knockdown in nude mice and the expression levels of Ki-67 in the xenograft using immunohistochemistry. RESULTS Mybl2 expression was significantly elevated in PCa tissues in close correlation with Gleason score and clinical and pathological stage of the tumor (P < 0.01) but not with the patients' age. Kaplan-Meier analysis indicated a significant negative correlation of high Mybl2 expression with recurrence-free survival (P < 0.05), but not with the overall survival of the patients. The data from TCGA suggested that clinical and pathological stages were independent prognostic factors for recurrence-free survival, and our data indicated that clinical stage and Gleason score were independent prognostic factors of PCa (P < 0.05). GSEA suggested that Mybl2 expression was related with the pathways involving immune function, cell adhesion, and cytokine secretion; CIBERPORT analysis suggested the involvement of Mybl2 expression with memory B cells and resting mast cells (P < 0.05). In LNCaP and PC-3 cells, MYBL2 knockdown significantly inhibited cell proliferation and invasion (P < 0.05); in the tumor-bearing nude mice, the xenografts derived from PC-3 cells with MYBL2 knockdown exhibited a lowered mean tumor weight and positivity rate for Ki67 (P < 0.05). CONCLUSION Mybl2 is an oncogene related with multiple pathological indicators of PCa and can serve as a potential prognostic marker as well as a therapeutic target for patients with PCa.
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Affiliation(s)
- M Yang
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - X Zhu
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Y Shen
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Q He
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Y Qin
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Y Shao
- Department of Urology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - L Yuan
- Department of Urology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - H Ye
- Department of Urology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
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He Q, Duan WB, Wen L, Liu Y, Ma L, Wang FR, Huang XJ, Lu J. [Analysis of clinical features of multiple myeloma with t(8;14)(q24;q32)]. Zhonghua Yi Xue Za Zhi 2022; 102:2363-2367. [PMID: 35970795 DOI: 10.3760/cma.j.cn112137-20211217-02810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the clinical manifestations and prognosis of multiple myeloma (MM) patients with t(8;14)(q24;q32). Methods: The clinical data of MM patients with G-banding results from 2004 to 2009 in Hematology Department of People's Hospital of Peking University were retrospectively analyzed. The general data, M protein related examination, cytogenetics data, therapeutic regimen and response evaluation of MM patients with t(8;14)(q24;q32) were collected. Results: Of all newly diagnosed multiple myeloma patients, the number of patients who had G-banding results was 940, among which 265 had abnormal karyotype in G-banding, accounting for 28.19%. The incidence of t(8;14)(q24;q32) detected by G-banding in MM patients was 0.85%(8/940), t(8;14)(q24;q32) accounted for 3.02%(8/265) of all choromosome abnormalities detected by G-banding. Seven of eight patients were male with a median age of 63.5(56-76) and the immunoglobulin sub-types seven in eight patients were lambda. All eight patients had DS stage Ⅲ at the time of initial diagnosis. FISH detection of these eight patients showed six patients(75%) with 1q21 amplification, and five patients(62.5%) with G-banding results showed abnormal chromosome 1. Among the eight patients, the number of patients reached complete response ,very good response and partial response were separately four, one and two, and the overall response rate(ORR) was 87.5%. After the median follow-up 35 months(23-65months), 2 patients died, and the OS of the dead patients exceeded 5 years. Conclusions: Patients with t(8;14)(q24;q32) accounted for 0.85% of the total who have the results of G banding in our hospital. Of our 8 patients, the light chain sub-type Lambda was more than Kappa, the patients were more common in males, accompanied by 1q21 amplification and chromosome 1 abnormality. The tumor load was high at the time of diagnosis, but the overall response to treatment was fair.
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Affiliation(s)
- Q He
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - W B Duan
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - L Wen
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - Y Liu
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - L Ma
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - F R Wang
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - X J Huang
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
| | - J Lu
- Department of Hematology, Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematological Diseases. Beijing 100044, China
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Ma CH, He Q, Zhou LF. [Toll-like receptors link atopic march and hygiene hypothesis]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:803-808. [PMID: 35927050 DOI: 10.3760/cma.j.cn112147-20211206-00858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The atopic march reveals that infants with atopic dermatitis are prone to food allergy, allergic rhinitis and asthma later in life. The hygiene hypothesis holds that the cleaner the personal hygiene and environment, the higher the incidence rate of asthma and allergy. It is believed that Toll like receptors (TLRs) are the bridge between innate immunity and adaptive immunity, playing an important role in inflammatory and immune diseases. More and more evidence shows that TLRs, involved in the pathophysiology of atopic march, connect atopic march with hygiene hypothesis as a potential therapeutic target for asthma and allergy.
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Affiliation(s)
- C H Ma
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Q He
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - L F Zhou
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
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Zhang N, Liu J, Chen Z, Chen N, Gu F, He Q. Integrated Analysis of the Alterations in Gut Microbiota and Metabolites of Mice Induced After Long-Term Intervention With Different Antibiotics. Front Microbiol 2022; 13:832915. [PMID: 35847062 PMCID: PMC9277126 DOI: 10.3389/fmicb.2022.832915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives We aimed to study the effect of antibiotic-induced disruption of gut microbiome on host metabolomes and inflammatory responses after long-term use of antibiotics. Methods A total of three groups of 3-week-old female C57BL/6 mice (n = 44) were continuously treated with vancomycin (VAN), polymyxin B (PMB), or water, respectively, for up to 28 weeks. Fecal samples collected at different time points were analyzed by bacterial 16S rRNA gene sequencing and untargeted metabolomics by ultraperformance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (UPLC Q-TOF MS). Serum cytokines (IFN-γ, IL-2, IL-10, IL-13, IL-17A, and TNF-α) were determined by multiplex immunoassay. Results Treatment by VAN or PMB did not affect the average body weight of mice. However, a heavier caecum observed in VAN-treated mice. Compared with PMB-treated and control mice, VAN treatment induced more rapid dysbiosis of gut microbiota and dysmetabolism. Instead of Bacteroides, VAN-treated mice had a compositional shift to Proteobacteria and its species Escherichia coli and Verrucomicrobia and its species Akkermansia muciniphila. The shift was accompanied by decreased richness and diversity in microbiota. PMB-treated mice had an increased Firmicutes, and the diversity was shortly increased and further decreased to the baseline. Decreased levels of short-chain and long-chain fatty acids, bile acids, L-arginine, dopamine, L-tyrosine, and phosphatidylcholine (all p < 0.05) were observed in VAN-treated mice. In contrast, significantly increased levels of amino acids including L-aspartic acid, beta-alanine, 5-hydroxy-L-tryptophan, L-glutamic acid, and lysophosphatidylcholines (all p < 0.05) were found. These changes occurred after 3-week treatment and remained unchanged up to 28 weeks. For PMB-treated mice, metabolites involved in the metabolic pathway of vitamin B6 were decreased, whereas glycocholic acid and chenodeoxycholic acid were increased (all p < 0.05). After 8-week treatment, VAN-treated mice had significantly higher levels of serum IFN-γ, IL-13, and IL-17A, and PMB-treated mice had higher levels of IL-13 and IL-17 compared to control mice. At 28-week treatment, only IL-17A remained high in PMB-treated mice. Conclusion This study showed that the antibiotic-induced alterations in gut microbiota contribute to host inflammatory responses through the change in metabolic status, which are likely related to the type, rather than timing of antibiotic used.
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Affiliation(s)
- Nan Zhang
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Jun Liu
- Laboratory Animal Center of Chinese PLA General Hospital, Beijing, China
| | - Zhiyun Chen
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Ning Chen
- Department of Medical Microbiology, Capital Medical University, Beijing, China
| | - Fangyan Gu
- Clinical Biobank Center of Chinese PLA General Hospital, Beijing, China
| | - Qiushui He
- Department of Medical Microbiology, Capital Medical University, Beijing, China
- Institute of Biomedicine, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
- *Correspondence: Qiushui He
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Chaumette B, Jiao C, He Q. Resilience Factors Preventing Schizophrenia in Ultra-high Risk Patients: Lessons from Genetics. Eur Psychiatry 2022. [PMCID: PMC9565285 DOI: 10.1192/j.eurpsy.2022.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Over the past decades, researchers and psychiatrists in the field of psychosis have moved from a conception of a chronic presentation to a more dynamic paradigm. Accordingly, schizophrenia is now conceptualized as a progressive illness that typically emerges during late adolescence and follows different stages: early vulnerability, ultra-high risk state, first episode of psychosis, and chronic disease. Only one-quarter of the ultra-high risk patients will convert to a full-blown psychotic episode within 3 years while the others, called non-converters, will remain at-risk, develop other psychiatric disorders, or fully recover. The reasons for this differential outcome are not yet understood but this concept opens the way to scientific research to determine the protective factors involved in resilience for non-converters. Based on the Gene X Environment interaction model, schizophrenia results from genetic vulnerability and environmental aggressions which can have an impact on the epigenome and gene expression. Recent studies have shown that genetic variants play a role in the resilience of psychosis. Polygenic risk scores, computed as the addition of genetic polymorphisms, can modulate the effects of genetic at-risk deletions (i.e. del22q11) that predispose to psychosis and may also influence the cognitive symptoms of ultra-high risk patients. Resilience, defined as the ability to withstand adversity, is not only related to external skills or psychotherapeutic care but could also be explained by internal molecular factors. Identifying the genetic factors of resilience might help to stratify the risk and to develop precision medicine in psychiatry.
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Chen Z, Pang J, Zhang Y, Ding Y, Chen N, Zhang N, He Q. Seroprevalence of Pertussis in Adults at Childbearing Age Pre- and Post- COVID-19 in Beijing, China. Vaccines (Basel) 2022; 10:vaccines10060872. [PMID: 35746480 PMCID: PMC9227865 DOI: 10.3390/vaccines10060872] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
The number of reported pertussis cases has significantly decreased during the coronavirus disease 2019 (COVID-19) pandemic under the influence of strict public health measures in many countries including China. This study evaluated the prevalence of serum anti-pertussis toxin (anti-PT) IgG antibodies in adults at childbearing age pre- and post- COVID-19 in Beijing, China. Altogether, 2021 serum samples collected from individuals aged 20 to 39 years who attended an annual health examination at the Sixth Medical Center of PLA General Hospital, Beijing, in 2018~2020 were measured by ELISA. The median concentration of anti-PT IgG antibodies among participants in 2020 (2.96 IU/mL) was significantly lower than that in 2018 (3.27 IU/mL) (p = 0.011) and in 2019 (3.24 IU/mL) (p = 0.014). The percentage of participants with anti-PT IgG antibodies higher than 40 IU/mL (indicating a pertussis infection within the past few years) was 1.79% (9/503) in 2018, 2.04% (15/735) in 2019 and 1.66% (13/783) in 2020, respectively. The corresponding numbers of the non-detectable (<5 IU/mL) rate of anti-PT IgG antibodies were 66.60%, 65.99% and 70.24%. Our results showed that there was a significant difference between true and reported incidence rates even during the COVID-19 pandemic. The proportion of adults at childbearing age without pertussis-specific antibodies is high, suggesting that booster vaccinations in adults should be considered in this country.
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Affiliation(s)
- Zhiyun Chen
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; (Z.C.); (J.P.); (N.C.); (N.Z.)
| | - Jie Pang
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; (Z.C.); (J.P.); (N.C.); (N.Z.)
| | - Yuxiao Zhang
- Medical Research & Laboratory Diagnostic Center, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, China;
| | - Yiwei Ding
- Department of Respiratory Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China;
| | - Ning Chen
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; (Z.C.); (J.P.); (N.C.); (N.Z.)
| | - Nan Zhang
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; (Z.C.); (J.P.); (N.C.); (N.Z.)
| | - Qiushui He
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; (Z.C.); (J.P.); (N.C.); (N.Z.)
- Institute of Biomedicine, Research Center for Infections and Immunity, University of Turku, 20520 Turku, Finland
- Correspondence: ; Tel.: +358-50-472-2255
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Versteegen P, Barkoff AM, Valente Pinto M, van de Kasteele J, Knuutila A, Bibi S, de Rond L, Teräsjärvi J, Sanders K, de Zeeuw-Brouwer ML, Luoto R, ten Hulscher H, Clutterbuck EA, Sanders EAM, Mertsola J, Berbers GAM, He Q, Kelly DF, Buisman AM. Memory B Cell Activation Induced by Pertussis Booster Vaccination in Four Age Groups of Three Countries. Front Immunol 2022; 13:864674. [PMID: 35677044 PMCID: PMC9168128 DOI: 10.3389/fimmu.2022.864674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundImmunogenicity of acellular pertussis (aP) vaccines is conventionally assessed by measuring antibody responses but antibody concentrations wane quickly after vaccination. Memory B cells, however, are critical in sustaining long-term protection and therefore may be an important factor when assessing pertussis immunity after vaccination.AimWe studied pertussis specific memory B cell (re)activation induced by an aP booster vaccination in four different age groups within three countries.Materials and methodsFrom a phase IV longitudinal interventional study, 268 participants across Finland, the Netherlands and the United Kingdom were included and received a 3-component pertussis booster vaccine: children (7-10y, n=53), adolescents (11-15y, n=66), young adults (20-34y, n=74), and older adults (60-70y, n=75). Memory B cells at baseline, day 28, and 1 year post-vaccination were measured by a pertussis toxin (Ptx), filamentous haemagglutinin (FHA), and pertactin (Prn) specific ELISpot assay. Antibody results measured previously were available for comparison. Furthermore, study participants were distributed into groups based on their baseline memory B cell frequencies, vaccine responses were monitored between these groups.ResultsGeometric mean (GM) memory B cell frequencies for pertussis antigens at baseline were low. At 28 days post-vaccination, these frequencies increased within each age group and were still elevated one year post-booster compared to baseline. Highest frequencies at day 28 were found within adolescents (GM: 5, 21, and 13, for Ptx, FHA and Prn, respectively) and lowest within older adults (GM: 2, 9, and 3, respectively). Moderate to strong correlations between memory B cell frequencies at day 28 and antibody concentrations at day 28 and 1 year were observed for Prn. Memory B cell frequencies > 1 per 100,000 PBMCs at baseline were associated with significantly higher memory responses after 28 days and 1 year.ConclusionsAn aP booster vaccine (re)activated memory B cells in all age groups. Still elevated memory B cell frequencies after one year indicates enhanced immunological memory. However, antigen specific memory B cell activation seems weaker in older adults, which might reflect immunosenescence. Furthermore, the presence of circulating memory B cells at baseline positively affects memory B cell responses. This study was registered at www.clinicaltrialsregister.eu: No. 2016-003678-42.
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Affiliation(s)
- Pauline Versteegen
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Alex-Mikael Barkoff
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Marta Valente Pinto
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford, Oxford, United Kingdom
| | - Jan van de Kasteele
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Aapo Knuutila
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Sagida Bibi
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford, Oxford, United Kingdom
| | - Lia de Rond
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Johanna Teräsjärvi
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Katherine Sanders
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford, Oxford, United Kingdom
| | - Mary-lène de Zeeuw-Brouwer
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Raakel Luoto
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Hinke ten Hulscher
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | | | - Elisabeth A. M. Sanders
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children’s Hospital, Utrecht, Netherlands
| | - Jussi Mertsola
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Guy A. M. Berbers
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Qiushui He
- Institute of Biomedicine, Microbiology, Virology and Immunology, and Turku University Hospital, University of Turku, Turku, Finland
| | - Dominic F. Kelly
- Department of Paediatrics, Oxford Vaccine Group, University of Oxford, Oxford, United Kingdom
- Oxford NIHR Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Anne-Marie Buisman
- National Institute for Public Health and the Environment, Centre for Infectious Disease Control, Bilthoven, Netherlands
- *Correspondence: Anne-Marie Buisman,
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Wang WX, Bi JY, Wen L, Duan WB, Liu Y, Wang FR, He Q, Lu J. [A single-center retrospective analysis of 100 consecutive cases treated with lenalidomide/bortezomib/dexamethasone in newly diagnosed multiple myeloma]. Zhonghua Nei Ke Za Zhi 2022; 61:531-536. [PMID: 35488603 DOI: 10.3760/cma.j.cn112138-20211105-00776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the efficacy and safety of lenalidomide combined with bortezomib and dexamethasone (RVD) in patients with newly diagnosed multiple myeloma (NDMM). Methods: A total of 100 consecutive NDMM patients treated with RVD from August 2016 to September 2020 at Peking University People's Hospital were retrospectively analyzed, including response, drug toxicity, follow-up and survival, and subgroup analysis. Results: The median follow-up time was 19.5 (2.0-57.0) months. For patients undergoing autologous stem cell transplantation (ASCT) after RVD regimen, the objective response rate (ORR)/complete response+stringent complete response (CR+sCR)/≥very good partial response (VGPR) rates were 100%, 73.3% (33/45), 95.6% (43/45) respectively. For 54 patients not receiving transplantation, the ORR/CR+sCR/≥VGPR rates were 79.6% (43/54), 18.5% (10/54), 51.9% (28/54) respectively. As to the survival analysis, 2-year progression free survival (PFS) rates were 84.5% and 70.9% in transplant and non-transplant patients respectively (P=0.102). Two-year overall survival (OS) rates were 100% and 80.8% in transplant and non-transplant patients respectively (P=0.003). The common hematologic adverse events (AEs) were thrombocytopenia (33%) and neutropenia (25%). Abnormal liver function (43%) and peripheral neuropathy (24%) were recognized more as non-hematologic AEs. Conclusion: RVD as front-line regimen has high efficient response rate and acceptable safety in Chinese NDMM patients.
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Affiliation(s)
- W X Wang
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - J Y Bi
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - L Wen
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - W B Duan
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Y Liu
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - F R Wang
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - Q He
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
| | - J Lu
- Department of Hematology, Peking University People's Hospital & Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China Collaborative Innovation Center of Hematology, Suzhou 215006, China
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Liu L, He Q, Shan J, Sun X, Song X, Guo Y. T001 Serum SYPL1 is a promising diagnostic biomarker for colorectal cancer. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lefrancq N, Bouchez V, Fernandes N, Barkoff AM, Bosch T, Dalby T, Åkerlund T, Darenberg J, Fabianova K, Vestrheim DF, Fry NK, González-López JJ, Gullsby K, Habington A, He Q, Litt D, Martini H, Piérard D, Stefanelli P, Stegger M, Zavadilova J, Armatys N, Landier A, Guillot S, Hong SL, Lemey P, Parkhill J, Toubiana J, Cauchemez S, Salje H, Brisse S. Global spatial dynamics and vaccine-induced fitness changes of Bordetella pertussis. Sci Transl Med 2022; 14:eabn3253. [PMID: 35476597 DOI: 10.1126/scitranslmed.abn3253] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
As with other pathogens, competitive interactions between Bordetella pertussis strains drive infection risk. Vaccines are thought to perturb strain diversity through shifts in immune pressures; however, this has rarely been measured because of inadequate data and analytical tools. We used 3344 sequences from 23 countries to show that, on average, there are 28.1 transmission chains circulating within a subnational region, with the number of chains strongly associated with host population size. It took 5 to 10 years for B. pertussis to be homogeneously distributed throughout Europe, with the same time frame required for the United States. Increased fitness of pertactin-deficient strains after implementation of acellular vaccines, but reduced fitness otherwise, can explain long-term genotype dynamics. These findings highlight the role of vaccine policy in shifting local diversity of a pathogen that is responsible for 160,000 deaths annually.
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Affiliation(s)
- Noémie Lefrancq
- Insitut Pasteur, Université Paris Cité, Mathematical Modelling of Infectious Diseases Unit, UMR2000, CNRS, 75015 Paris, France.,Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
| | - Valérie Bouchez
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France
| | - Nadia Fernandes
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France
| | - Alex-Mikael Barkoff
- University of Turku UTU, Institute of Biomedicine, Research Center for Infections and Immunity, FI-20520 Turku, Finland
| | - Thijs Bosch
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, Netherlands
| | - Tine Dalby
- Statens Serum Institut, Bacteria, Parasites and Fungi/Infectious Disease Preparedness, 2300 Copenhagen, Denmark
| | - Thomas Åkerlund
- The Public Health Agency of Sweden, Unit for Laboratory Surveillance of Bacterial Pathogens, SE-171 82 Solna, Sweden
| | - Jessica Darenberg
- The Public Health Agency of Sweden, Unit for Laboratory Surveillance of Bacterial Pathogens, SE-171 82 Solna, Sweden
| | - Katerina Fabianova
- National Institute of Public Health, Department of Infectious Diseases Epidemiology, CZ-10000 Prague, Czech Republic
| | - Didrik F Vestrheim
- Norwegian Institute of Public Health, Department of Infectious Disease Control and Vaccine, N-0213 Oslo, Norway
| | - Norman K Fry
- Respiratory and Vaccine Preventable Bacteria Reference Unit, Public Health England-National Infection Service, London NW9 5EQ, UK.,Immunisation and Countermeasures Division, Public Health England-National Infection Service, London NW9 5EQ, UK
| | - Juan José González-López
- University Hospital Vall d'Hebron, Microbiology Department, 08035 Barcelona, Spain.,Universitat Autònoma de Barcelona, Department of Genetics and Microbiology, 08193 Barcelona, Spain
| | - Karolina Gullsby
- Centre for Research and Development, Uppsala University/Region Gävleborg, 80187 Gävle, Sweden
| | - Adele Habington
- Molecular Microbiology Laboratory, Children's Health Ireland, Crumlin, D12 N512 Dublin, Ireland
| | - Qiushui He
- University of Turku UTU, Institute of Biomedicine, Research Center for Infections and Immunity, FI-20520 Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, FI-20520 Turku, Finland
| | - David Litt
- Respiratory and Vaccine Preventable Bacteria Reference Unit, Public Health England-National Infection Service, London NW9 5EQ, UK
| | - Helena Martini
- Department of Microbiology, National Reference Centre for Bordetella pertussis, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel (VUB), B-1090 Brussels, Belgium
| | - Denis Piérard
- Department of Microbiology, National Reference Centre for Bordetella pertussis, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel (VUB), B-1090 Brussels, Belgium
| | - Paola Stefanelli
- Department of Infectious Diseases, Istituto Superiore di Sanità, IT-00161 Rome, Italy
| | - Marc Stegger
- Statens Serum Institut, Bacteria, Parasites and Fungi/Infectious Disease Preparedness, 2300 Copenhagen, Denmark
| | - Jana Zavadilova
- National Institute of Public Health, National Reference Laboratory for Pertussis and Diphtheria, 100 00 Prague, Czech Republic
| | - Nathalie Armatys
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France
| | - Annie Landier
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France
| | - Sophie Guillot
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France
| | - Samuel L Hong
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, 3000 Leuven, Belgium
| | - Philippe Lemey
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, 3000 Leuven, Belgium
| | - Julian Parkhill
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Julie Toubiana
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France.,Université Paris Cité, Department of General Paediatrics and Paediatric Infectious Diseases, Necker-Enfants Malades Hospital, APHP, 75015 Paris, France
| | - Simon Cauchemez
- Insitut Pasteur, Université Paris Cité, Mathematical Modelling of Infectious Diseases Unit, UMR2000, CNRS, 75015 Paris, France
| | - Henrik Salje
- Insitut Pasteur, Université Paris Cité, Mathematical Modelling of Infectious Diseases Unit, UMR2000, CNRS, 75015 Paris, France.,Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
| | - Sylvain Brisse
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, 75724 Paris, France.,National Reference Center for Whooping Cough and Other Bordetella Infections, 75724 Paris, France
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Hurme A, Jalkanen P, Heroum J, Liedes O, Vara S, Melin M, Teräsjärvi J, He Q, Pöysti S, Hänninen A, Oksi J, Vuorinen T, Kantele A, Tähtinen PA, Ivaska L, Kakkola L, Lempainen J, Julkunen I. Long-Lasting T Cell Responses in BNT162b2 COVID-19 mRNA Vaccinees and COVID-19 Convalescent Patients. Front Immunol 2022; 13:869990. [PMID: 35529867 PMCID: PMC9073085 DOI: 10.3389/fimmu.2022.869990] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/29/2022] [Indexed: 11/13/2022] Open
Abstract
The emergence of novel variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has made it more difficult to prevent the virus from spreading despite available vaccines. Reports of breakthrough infections and decreased capacity of antibodies to neutralize variants raise the question whether current vaccines can still protect against COVID-19 disease. We studied the dynamics and persistence of T cell responses using activation induced marker (AIM) assay and Th1 type cytokine production in peripheral blood mononuclear cells obtained from BNT162b2 COVID-19 mRNA vaccinated health care workers and COVID-19 patients. We demonstrate that equally high T cell responses following vaccination and infection persist at least for 6 months against Alpha, Beta, Gamma, and Delta variants despite the decline in antibody levels.
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Affiliation(s)
- Antti Hurme
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Infectious Diseases, Turku University Hospital and University of Turku, Turku, Finland
- *Correspondence: Antti Hurme,
| | - Pinja Jalkanen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Jemna Heroum
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Oona Liedes
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Saimi Vara
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Merit Melin
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | | | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sakari Pöysti
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Arno Hänninen
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Jarmo Oksi
- Department of Infectious Diseases, Turku University Hospital and University of Turku, Turku, Finland
| | - Tytti Vuorinen
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
| | - Anu Kantele
- Meilahti Vaccine Research Center, MeVac, Department of Infectious Diseases, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Paula A. Tähtinen
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Lauri Ivaska
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Laura Kakkola
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Johanna Lempainen
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - Ilkka Julkunen
- Institute of Biomedicine, University of Turku, Turku, Finland
- Clinical Microbiology, Turku University Hospital, Turku, Finland
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48
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Tenhu E, Teräsjärvi J, Cruzeiro ML, Savonius O, Rugemalira E, He Q, Pelkonen T. Gene polymorphisms of TLR10: effects on bacterial meningitis outcomes in Angolan children. APMIS 2022; 130:221-229. [PMID: 35122704 DOI: 10.1111/apm.13213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/27/2022] [Indexed: 11/29/2022]
Abstract
This study examined whether gene polymorphisms for toll-like receptor 10 (TLR10) associated with the susceptibility to and outcomes of bacterial meningitis (BM) in Angolan children. The study cohort consisted of 190 BM patients and the determination of ten single-nucleotide polymorphisms (SNPs) by Sanger sequencing. Patients with BM caused by Streptococcus pneumoniae who carried the following variants of TLR10 SNPs exhibited an increased risk of coexisting pneumonia: rs10004195 (T > A) (p = 0.025), rs10856837 (G > A) (p = 0.018) or rs11096956 (G > T) (p = 0.010). Yet, TLR10 SNPs rs11466652 (A > G), rs10856837 (G > A) and rs11096956 (G > T) influenced the protein levels in the cerebrospinal fluid (CSF). Moreover, compared with the wild type, patients with pneumococcal meningitis carrying a variant genotype of TLR10 SNP rs11466648 (A > G) exhibited an increased risk of developing blindness (p = 0.025), whereas patients with TLR10 SNP rs10004195 (T > A) exhibited a lower risk of convulsions at admission (p = 0.039) and a lower risk of altered consciousness (p = 0.029). This study suggests a relationship exists between coexisting pneumonia, protein levels in CSF, blindness, convulsions and an altered consciousness with genetic variations of TLR10 in BM in Angolan children.
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Affiliation(s)
- Elina Tenhu
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland
| | - Johanna Teräsjärvi
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland
| | | | - Okko Savonius
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Emilie Rugemalira
- Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Qiushui He
- Institute of Biomedicine, Research Centre of Infections and Immunity, University of Turku, Turku, Finland.,InFLAMES Research Flagship Centre, University of Turku, Turku, Finland
| | - Tuula Pelkonen
- Hospital Pediátrico David Bernardino, Luanda, Angola.,Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
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49
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Riikonen R, Teräsjärvi J, Lauhkonen E, Nuolivirta K, He Q, Korppi M. Interleukin 1 receptor-like 1 rs13408661/13431828 polymorphism is associated with persistent post-bronchiolitis asthma at school age. Acta Paediatr 2022; 111:628-635. [PMID: 34741482 PMCID: PMC9298919 DOI: 10.1111/apa.16176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/03/2021] [Accepted: 11/03/2021] [Indexed: 12/28/2022]
Abstract
Aim Interleukin (IL) 1 receptor‐like 1, encoded by the IL1RL1 gene, is a receptor for IL‐33. In European birth cohorts, IL1RL1 rs102082293, rs10204137 (rs4988955), rs13424006 and rs13431828 (rs13048661) variations were associated with asthma at school age. In a Dutch multi‐centre study, IL1RL1 rs1921622 variation was associated with severe bronchiolitis. We evaluated the associations of these five IL1RL1 variations with asthma and lung function at school age after hospitalisation for bronchiolitis in infancy. Methods Follow‐up data, including impulse oscillometry at age 5–7 and flow‐volume spirometry at age 11–13 years, and the IL1RL1 genotype data were available for 141 children followed until 5–7 and for 125 children followed until 11–13 age years after bronchiolitis in infancy. The IL1RL1 rs10204137 and rs4988955, and the IL1RL1 rs13048661 and rs13431828, are 100% co‐segregating in the Finnish population. Results The variant IL1RL1 rs13048661/13431828 genotype was constantly associated with increased asthma risk by various definitions at 5–7 and 11–13 years of ages. The result was confirmed with analyses adjusted for current confounders and early‐life environment‐related factors. Statistical significances were lost, when maternal asthma and atopic dermatitis in infancy were included in the model. Conclusion IL1RL1 rs13048661/13431828 variation was associated with post‐bronchiolitis asthma outcomes at school age.
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Affiliation(s)
- Riikka Riikonen
- Center for Child Health Research Faculty of Medicine and Biotechnology University of Tampere and University Hospital Tampere Finland
| | | | - Eero Lauhkonen
- Center for Child Health Research Faculty of Medicine and Biotechnology University of Tampere and University Hospital Tampere Finland
| | - Kirsi Nuolivirta
- Department of Pediatrics Seinäjoki Central Hospital Seinäjoki Finland
| | - Qiushui He
- Institute of Biomedicine University of Turku Turku Finland
- Department of Medical Microbiology Capital Medical University Beijing China
| | - Matti Korppi
- Center for Child Health Research Faculty of Medicine and Biotechnology University of Tampere and University Hospital Tampere Finland
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50
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Holster A, Riikonen R, Teräsjärvi J, Korppi M, Nuolivirta K, Törmänen S, He Q, Lauhkonen E. Interleukin 17A gene variations and lung function at school age after bronchiolitis in infancy. Acta Paediatr 2022; 111:640-641. [PMID: 33000536 DOI: 10.1111/apa.15603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/30/2020] [Accepted: 09/25/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Annukka Holster
- Center for Child Health Research Tampere University and Tampere University Hospital Tampere Finland
| | - Riikka Riikonen
- Center for Child Health Research Tampere University and Tampere University Hospital Tampere Finland
| | - Johanna Teräsjärvi
- Department of Clinical Microbiology and Immunology Turku University Turku Finland
| | - Matti Korppi
- Center for Child Health Research Tampere University and Tampere University Hospital Tampere Finland
| | - Kirsi Nuolivirta
- Department of Paediatrics Seinäjoki Central Hospital Seinäjoki Finland
| | - Sari Törmänen
- Center for Child Health Research Tampere University and Tampere University Hospital Tampere Finland
| | - Qiushui He
- Department of Clinical Microbiology and Immunology Turku University Turku Finland
- Department of Medical Microbiology Capital Medical University Beijing China
| | - Eero Lauhkonen
- Center for Child Health Research Tampere University and Tampere University Hospital Tampere Finland
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