1.Effect of screw loosening on health-related quality of life following single-level posterior lumbar interbody fusion: a retrospective study in Japan
Hiroki USHIROZAKO ; Tomohiko HASEGAWA ; Shigeto EBATA ; Tetsuro OHBA ; Hiroki OBA ; Keijiro MUKAIYAMA ; Yu YAMATO ; Go YOSHIDA ; Tomohiro BANNO ; Hideyuki ARIMA ; Shin OE ; Koichiro IDE ; Tomohiro YAMADA ; Kenta KUROSU ; Toshiyuki OJIMA ; Jun TAKAHASHI ; Hirotaka HARO ; Yukihiro MATSUYAMA
Asian Spine Journal 2026;20(2):244-254
Methods:
This study included 138 patients who underwent PLIF, with a mean age of 67 years and a follow-up period of 12 months. At 12 months postoperatively, lumbar computed tomography (CT) was performed to assess SL, and patients were categorized into SL and nonloosening (NL) groups accordingly. A propensity score-matched model was used to adjust for age, sex, and body mass index (BMI). Propensity score matching was performed to compare outcomes between the SL and NL groups.
Results:
Among the 138 patients, 29 (21%) developed SL following PLIF. Preliminary analysis revealed that the patients in the SL group were older and exhibited decreased femoral neck bone mineral density, preoperative pelvic retroversion, poor whole spine alignment, and lesser improvement in HRQOL compared with the NL group. Using propensity score matching, 22 patients were selected from each group (mean age, 72 years) (C-statistic=0.78). The propensity score-matched analysis demonstrated significant differences in the preoperative pelvic tilt (25.9° vs. 17.8°, p=0.010) between the matched SL and NL groups. Furthermore, the Oswestry Disability Index scores indicated poorer improvements in the matched SL group than in the matched NL group at 9 months postoperatively (p=0.025).
Conclusions
After matching, pre- and postoperative pelvic retroversion were significantly associated with SL. Patients with SL experienced significantly poorer improvement in HRQOL at 9 months postoperatively. Therefore, implementing strategies for preventing SL may enhance early postoperative HRQOL.
2.Impact of TTF-1 Expression on the Prognostic Prediction of Patients with Non–Small Cell Lung Cancer with PD-L1 Expression Levels of 1% to 49%, Treated with Chemotherapy vs. Chemoimmunotherapy: A Multicenter, Retrospective Study
Naoya NISHIOKA ; Tae HATA ; Tadaaki YAMADA ; Yasuhiro GOTO ; Akihiko AMANO ; Yoshiki NEGI ; Satoshi WATANABE ; Naoki FURUYA ; Tomohiro OBA ; Tatsuki IKOMA ; Akira NAKAO ; Keiko TANIMURA ; Hirokazu TANIGUCHI ; Akihiro YOSHIMURA ; Tomoya FUKUI ; Daiki MURATA ; Kyoichi KAIRA ; Shinsuke SHIOTSU ; Makoto HIBINO ; Asuka OKADA ; Yusuke CHIHARA ; Hayato KAWACHI ; Takashi KIJIMA ; Koichi TAKAYAMA
Cancer Research and Treatment 2025;57(2):412-421
Purpose:
Thyroid transcription factor 1 (TTF-1) expression is a useful predictor of treatment efficacy in advanced non-squamous non–small cell lung cancer (NSCLC). This study aimed to evaluate whether TTF-1 could predict the effectiveness of chemotherapy versus chemoimmunotherapy in patients with non-squamous NSCLC with programmed death ligand-1 (PD-L1) expression between 1% and 49%.
Materials and Methods:
We conducted a retrospective study of patients with NSCLC who were treated with chemotherapy or chemoimmunotherapy between March 2016 and May 2023. The patients had histologically confirmed NSCLC, stage III-IV or postoperative recurrence, TTF-1 measurements, and PD-L1 expression levels between 1% and 49%. Clinical data were analyzed to evaluate the effect of TTF-1 expression on treatment efficacy.
Results:
This study included 283 of 624 patients. TTF-1–positive patients showed longer progression-free survival (PFS) and overall survival (OS) (PFS: 6.4 months [95% confidence interval (CI), 5.0 to 9.4] vs. 4.1 months [95% CI, 2.7 to 6.1], p=0.03; OS: 17.9 months [95% CI, 15.2 to 28.1] vs. 9.4 months [95% CI, 6.3 to 17.0], p < 0.01) in the chemotherapy cohorts (n=93). In the chemoimmunotherapy cohort (n=190), there was no significant difference in PFS and OS between TTF-1–positive and –negative groups (PFS: 7.6 months [95% CI, 6.4 to 11.0] vs. 6.0 months [95% CI, 3.6 to 12.6], p=0.59; OS: 25.0 months [95% CI, 18.0 to 49.2] vs. 21.3 months [95% CI, 9.8 to 28.8], p=0.09).
Conclusion
In patients with NSCLC with PD-L1 expression between 1% and 49%, TTF-1 expression was a predictor of chemotherapeutic, but not chemoimmunotherapeutic, efficacy.
3.Impact of TTF-1 Expression on the Prognostic Prediction of Patients with Non–Small Cell Lung Cancer with PD-L1 Expression Levels of 1% to 49%, Treated with Chemotherapy vs. Chemoimmunotherapy: A Multicenter, Retrospective Study
Naoya NISHIOKA ; Tae HATA ; Tadaaki YAMADA ; Yasuhiro GOTO ; Akihiko AMANO ; Yoshiki NEGI ; Satoshi WATANABE ; Naoki FURUYA ; Tomohiro OBA ; Tatsuki IKOMA ; Akira NAKAO ; Keiko TANIMURA ; Hirokazu TANIGUCHI ; Akihiro YOSHIMURA ; Tomoya FUKUI ; Daiki MURATA ; Kyoichi KAIRA ; Shinsuke SHIOTSU ; Makoto HIBINO ; Asuka OKADA ; Yusuke CHIHARA ; Hayato KAWACHI ; Takashi KIJIMA ; Koichi TAKAYAMA
Cancer Research and Treatment 2025;57(2):412-421
Purpose:
Thyroid transcription factor 1 (TTF-1) expression is a useful predictor of treatment efficacy in advanced non-squamous non–small cell lung cancer (NSCLC). This study aimed to evaluate whether TTF-1 could predict the effectiveness of chemotherapy versus chemoimmunotherapy in patients with non-squamous NSCLC with programmed death ligand-1 (PD-L1) expression between 1% and 49%.
Materials and Methods:
We conducted a retrospective study of patients with NSCLC who were treated with chemotherapy or chemoimmunotherapy between March 2016 and May 2023. The patients had histologically confirmed NSCLC, stage III-IV or postoperative recurrence, TTF-1 measurements, and PD-L1 expression levels between 1% and 49%. Clinical data were analyzed to evaluate the effect of TTF-1 expression on treatment efficacy.
Results:
This study included 283 of 624 patients. TTF-1–positive patients showed longer progression-free survival (PFS) and overall survival (OS) (PFS: 6.4 months [95% confidence interval (CI), 5.0 to 9.4] vs. 4.1 months [95% CI, 2.7 to 6.1], p=0.03; OS: 17.9 months [95% CI, 15.2 to 28.1] vs. 9.4 months [95% CI, 6.3 to 17.0], p < 0.01) in the chemotherapy cohorts (n=93). In the chemoimmunotherapy cohort (n=190), there was no significant difference in PFS and OS between TTF-1–positive and –negative groups (PFS: 7.6 months [95% CI, 6.4 to 11.0] vs. 6.0 months [95% CI, 3.6 to 12.6], p=0.59; OS: 25.0 months [95% CI, 18.0 to 49.2] vs. 21.3 months [95% CI, 9.8 to 28.8], p=0.09).
Conclusion
In patients with NSCLC with PD-L1 expression between 1% and 49%, TTF-1 expression was a predictor of chemotherapeutic, but not chemoimmunotherapeutic, efficacy.
4.Impact of TTF-1 Expression on the Prognostic Prediction of Patients with Non–Small Cell Lung Cancer with PD-L1 Expression Levels of 1% to 49%, Treated with Chemotherapy vs. Chemoimmunotherapy: A Multicenter, Retrospective Study
Naoya NISHIOKA ; Tae HATA ; Tadaaki YAMADA ; Yasuhiro GOTO ; Akihiko AMANO ; Yoshiki NEGI ; Satoshi WATANABE ; Naoki FURUYA ; Tomohiro OBA ; Tatsuki IKOMA ; Akira NAKAO ; Keiko TANIMURA ; Hirokazu TANIGUCHI ; Akihiro YOSHIMURA ; Tomoya FUKUI ; Daiki MURATA ; Kyoichi KAIRA ; Shinsuke SHIOTSU ; Makoto HIBINO ; Asuka OKADA ; Yusuke CHIHARA ; Hayato KAWACHI ; Takashi KIJIMA ; Koichi TAKAYAMA
Cancer Research and Treatment 2025;57(2):412-421
Purpose:
Thyroid transcription factor 1 (TTF-1) expression is a useful predictor of treatment efficacy in advanced non-squamous non–small cell lung cancer (NSCLC). This study aimed to evaluate whether TTF-1 could predict the effectiveness of chemotherapy versus chemoimmunotherapy in patients with non-squamous NSCLC with programmed death ligand-1 (PD-L1) expression between 1% and 49%.
Materials and Methods:
We conducted a retrospective study of patients with NSCLC who were treated with chemotherapy or chemoimmunotherapy between March 2016 and May 2023. The patients had histologically confirmed NSCLC, stage III-IV or postoperative recurrence, TTF-1 measurements, and PD-L1 expression levels between 1% and 49%. Clinical data were analyzed to evaluate the effect of TTF-1 expression on treatment efficacy.
Results:
This study included 283 of 624 patients. TTF-1–positive patients showed longer progression-free survival (PFS) and overall survival (OS) (PFS: 6.4 months [95% confidence interval (CI), 5.0 to 9.4] vs. 4.1 months [95% CI, 2.7 to 6.1], p=0.03; OS: 17.9 months [95% CI, 15.2 to 28.1] vs. 9.4 months [95% CI, 6.3 to 17.0], p < 0.01) in the chemotherapy cohorts (n=93). In the chemoimmunotherapy cohort (n=190), there was no significant difference in PFS and OS between TTF-1–positive and –negative groups (PFS: 7.6 months [95% CI, 6.4 to 11.0] vs. 6.0 months [95% CI, 3.6 to 12.6], p=0.59; OS: 25.0 months [95% CI, 18.0 to 49.2] vs. 21.3 months [95% CI, 9.8 to 28.8], p=0.09).
Conclusion
In patients with NSCLC with PD-L1 expression between 1% and 49%, TTF-1 expression was a predictor of chemotherapeutic, but not chemoimmunotherapeutic, efficacy.
5.Dembo polymerase chain reaction technique for detection of bovine abortion, diarrhea, and respiratory disease complex infectious agents in potential vectors and reservoirs
Sayed Samim RAHPAYA ; Shinobu TSUCHIAKA ; Mai KISHIMOTO ; Mami OBA ; Yukie KATAYAMA ; Yuka NUNOMURA ; Saki KOKAWA ; Takashi KIMURA ; Atsushi KOBAYASHI ; Yumi KIRINO ; Tamaki OKABAYASHI ; Nariaki NONAKA ; Hirohisa MEKATA ; Hiroshi AOKI ; Mai SHIOKAWA ; Moeko UMETSU ; Tatsushi MORITA ; Ayako HASEBE ; Keiko OTSU ; Tetsuo ASAI ; Tomohiro YAMAGUCHI ; Shinji MAKINO ; Yoshiteru MURATA ; Ahmad Jan ABI ; Tsutomu OMATSU ; Tetsuya MIZUTANI
Journal of Veterinary Science 2018;19(3):350-357
Bovine abortion, diarrhea, and respiratory disease complexes, caused by infectious agents, result in high and significant economic losses for the cattle industry. These pathogens are likely transmitted by various vectors and reservoirs including insects, birds, and rodents. However, experimental data supporting this possibility are scarce. We collected 117 samples and screened them for 44 bovine abortive, diarrheal, and respiratory disease complex pathogens by using Dembo polymerase chain reaction (PCR), which is based on TaqMan real-time PCR. Fifty-seven samples were positive for at least one pathogen, including bovine viral diarrhea virus, bovine enterovirus, Salmonella enterica ser. Dublin, Salmonella enterica ser. Typhimurium, and Neospora caninum; some samples were positive for multiple pathogens. Bovine viral diarrhea virus and bovine enterovirus were the most frequently detected pathogens, especially in flies, suggesting an important role of flies in the transmission of these viruses. Additionally, we detected the N. caninum genome from a cockroach sample for the first time. Our data suggest that insects (particularly flies), birds, and rodents are potential vectors and reservoirs of abortion, diarrhea, and respiratory infectious agents, and that they may transmit more than one pathogen at the same time.
Animals
;
Birds
;
Cattle
;
Cockroaches
;
Diarrhea Viruses, Bovine Viral
;
Diarrhea
;
Diptera
;
Disease Reservoirs
;
Disease Vectors
;
Enterovirus
;
Enterovirus, Bovine
;
Genome
;
Insects
;
Neospora
;
Polymerase Chain Reaction
;
Real-Time Polymerase Chain Reaction
;
Rodentia
;
Salmonella enterica
;
Virulence Factors

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