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  1. 1581
    “…With further fermentation optimization, titers were improved to 1829 ± 46 mg/L; a 2.6-fold improvement in titer and a 30-fold improvement in productivity from previous literature reports.…”
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    ePathOptimize: A Combinatorial Approach for Transcriptional Balancing of Metabolic Pathways
  2. 1582
    “…Two (15.4%) pwSPMS on siponimod had unmeasurable titers of SARS-CoV2-2 antibodies, while all HC had positive titers.Conclusion: Although the results of this study are limited by a small sample size, results have consistently shown low titers of SARS-CoV-2 IgG after COVID-19 vaccinations in pwSPMS on siponimod.…”
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    Humoral immune response to COVID-19 vaccines in people with secondary progressive multiple sclerosis treated with siponimod
  3. 1583
    “…For >70 years, a 4-fold or greater rise in antibody titer has been used to confirm influenza virus infections in paired sera, despite recognition that this heuristic can lack sensitivity. …”
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    Reconstructing antibody dynamics to estimate the risk of influenza virus infection
  4. 1584
    “…There was no difference in antibody titers between one- and two-dose regimens for up to 1 year, except at 8 weeks with the multivalent vaccine, and all horses had sufficient antibody titers for 1 year of tetanus prophylaxis. …”
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    Assessment of tetanus revaccination regimens in horses not vaccinated in the previous year
  5. 1585
    “…Perreault and colleagues examined antibody titers in sequential samples from serum donors recovering from COVID-19 and demonstrated that antibody titers fall over 3-4 months. …”
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    Waning of SARS-CoV-2 RBD antibodies in longitudinal convalescent plasma samples within 4 months after symptom onset
  6. 1586
    “…The 1,3-PDO yield reached 0.44 g/g and the final titer reached 62.90 g/L. The increased titer and yield were attributed to the increased redox levels and the consumption of by-products. …”
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    Enhanced 1,3-propanediol production with high yield from glycerol through a novel Klebsiella–Shewanella co-culture
  7. 1587
    “…Here, RSMs and rAAV stocks were titered on the basis of an inverted terminal repeats (ITRs) sequence-specific qPCR and we found an artificial increase in vg titers using a widely utilized approach. …”
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    Practical utilization of recombinant AAV vector reference standards: focus on vector genomes titration by free ITR qPCR
  8. 1588
    “…In general, there was an inverse relationship between chicken mortality (%) and mean HI titer. Chickens with higher HI antibody titers had better survival rate to the challenge experiment. …”
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    Serological response and protection level evaluation in chickens exposed to grains coated with I2 Newcastle disease virus for effective oral vaccination of village chickens
  9. 1589
    “…A positive correlation was determined between HAI titers and sustained NK cell activation, although NK cell activation was seen in plasma samples with HAI titers below 40 and varied amongst samples with high HAI titers. …”
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    Antibody-dependent NK cell degranulation as a marker for assessing antibody-dependent cytotoxicity against pandemic 2009 influenza A(H1N1) infection in human plasma and influenza-vaccinated transchromosomic bovine intravenous immunoglobulin therapy
  10. 1590
    “…There were 13/34 strains with hSBA titers ≥4 and at least a 4-fold rise in titer with respect to pooled baseline sera, and 10/34 with hSBA titers ≥8 and at least a 4-fold rise in titer with respect to baseline. …”
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    Does vaccination with 4CMenB convey protection against meningococcal serogroup B strains not predicted to be covered by MATS? A study of the UK clonal complex cc269
  11. 1591
    “…IVIG from Taiwan and Hong Kong showed low antibody titers for these pathogens but high titers for Pseudomonas aeruginosa. …”
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    Characterization of antibodies in human immunoglobulin products from different regions worldwide
  12. 1592
    “…A positive serum TBEV antibody titer was found in 11 of the 89 dogs (12.4%). None of the control dogs showed a positive CSF antibody titer, whilst two showed positive serum concentrations. …”
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    Evaluation of antibodies in cerebrospinal fluid for the diagnosis of tick-borne encephalitis in dogs
  13. 1593
    por Buss, Lewis, Prete, Carlos A., Whittaker, Charles, Salomon, Tassila, Oikawa, Marcio K., Pereira, Rafael H. M., Moura, Isabel C. G., Delerino, Lucas, Franca, Rafael F. O., Miyajima, Fabio, Mendrone Jr., Alfredo, Almeida-Neto, Cesar, Salles, Nanci A., Ferreira, Suzete C., Fladzinski, Karine A., de Souza, Luana M., Schier, Luciane K., Inoue, Patricia M., Xabregas, Lilyane A., Crispim, Myuki A. E., Fraiji, Nelson, Carlos, Luciana M. B., Pessoa, Veridiana, Ribeiro, Maisa A., de Souza, Rosenvaldo E., Cavalcante, Anna F., Valença, Maria I. B., da Silva, Maria V., Lopes, Esther, Filho, Luiz A., Mateos, Sheila O. G., Nunes, Gabrielle T., Schlesinger, David, da Silva, Sônia Mara Nunes, Silva-Junior, Alexander L., Castro, Marcia C., Nascimento, Vítor H., Dye, Christopher, Busch, Michael P., Faria, Nuno R., Sabino, Ester C.
    Publicado 2022
    “…Using an ecological analysis, we assessed the contributions of prior attack rate and vaccination to antibody titer. We compared anti-S titer across the seven cities during the growth phase of the Delta variant and used this to predict the resulting age-standardized incidence of severe COVID-19 cases. …”
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    Predicting SARS-CoV-2 Variant Spread in a Completely Seropositive Population Using Semi-Quantitative Antibody Measurements in Blood Donors
  14. 1594
    “…A very small dose of peptone resulted in a decrease in antiferment titer, together with a primary decrease in serum protease. 5. …”
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    THE EFFECT OF PROTEIN SPLIT PRODUCTS ON THE SERUM FERMENTS AND ANTIFERMENT : STUDIES ON FERMENT ACTION. XXVI.
  15. 1595
    “…Multiplication of the LDH agent began within 6 hours after infection and reached 10(10.8) ID(50)/ml of plasma within 24 hours. The titer rapidly decreased over the next 72 hours but viremia persisted for at least 16 months with titers as high as 10(5.2) ID(50)/ml. …”
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    STUDIES ON THE MULTIPLICATION AND THE PROPERTIES OF THE LACTIC DEHYDROGENASE AGENT
  16. 1596
    “…The titers of adenovirus and SV40 genetic carriers in hybrid preparations (E46(+)) can be quantitated by determining the percentage of cells showing neoantigens stainable with fluorescent antibody (FA) at 21 to 24 hours; both titers can be obtained with a single coverslip. …”
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    STUDIES OF ADENOVIRUS SV40 HYBRID VIRUSES : I. ASSAY SYSTEM AND FURTHER EVIDENCE FOR HYBRIDIZATION
  17. 1597
    “…RESULTS: We found a significant correlation between antibody titers and mucosal severity scores. Initial antibody titers of the patients with at least one mucosal lesion at the end of the first month of the therapy were found significantly higher than the patients who had no mucosal lesion. …”
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    ASSESSING THE AUTOANTIBODY LEVELS IN RELATION TO DISEASE SEVERITY AND THERAPY RESPONSE IN PEMPHIGUS PATIENTS
  18. 1598
    “…Anti-J5 E. coli IgM, IgG1, and IgG2 titers were determined by ELISA. Anti-J5 E. coli IgM titers did not differ significantly (P = .98) between groups. …”
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    Bovine Leukemia Virus Infection in Dairy Cattle: Effect on Serological Response to Immunization against J5 Escherichia coli Bacterin
  19. 1599
    “…At the time of transplant, his anti-B titers were <1:8. Post-operatively, he required four sessions of plasmapheresis and IVIG as his titers rebounded to 1:64. …”
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    Renal transplantation across ABO barrier
  20. 1600
    “…In the case of ilecine, the biological titer of bitespiramycin and the total isovalerylspiramycins alone were 85% and 72.1% of the control group, respectively. …”
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    Effect of branched-chain amino acids, valine, isoleucine and leucine on the biosythesis of bitespiramycin 4"-O-acylspiramycins
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